.arena-dashboard{--arena-accent:var(--constraint-accent);--arena-positive:#b8e600;--arena-negative:#e24b4a;--arena-bg:var(--constraint-bg);--arena-border-card:var(--constraint-border);--arena-text:var(--constraint-text);--arena-text-dim:var(--constraint-text-dim);--arena-text-faint:var(--constraint-text-faint);font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;background:var(--arena-bg);color:var(--arena-text);flex-direction:column;height:100dvh;min-height:100dvh;display:flex;position:relative;overflow:hidden}.arena-dashboard *{box-sizing:border-box}.arena-dashboard:before{content:"";background-image:linear-gradient(color-mix(in srgb, var(--constraint-accent) 2.2%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--constraint-accent) 2.2%, transparent) 1px, transparent 1px);pointer-events:none;z-index:0;background-size:48px 48px;position:absolute;inset:0}.arena-dashboard>*{z-index:1;position:relative}.arena-dashboard .topbar{border-bottom:1px solid var(--arena-border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#080808a6;flex-shrink:0;grid-template-columns:auto 1fr auto;align-items:center;gap:2rem;padding:.875rem 1.75rem;display:grid}.arena-dashboard .topbar-brand{align-items:center;gap:.65rem;min-width:0;display:flex}@media (min-width:640px){.arena-dashboard .topbar-brand{gap:.85rem}}.arena-dashboard .topbar-editions-btn{appearance:none;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text-faint);border:1px solid var(--arena-border-card);cursor:pointer;white-space:nowrap;background:#ffffff0a;border-radius:2px;flex-shrink:0;padding:.4rem .55rem;font-size:.5625rem;font-weight:700;transition:color .2s,border-color .2s,background .2s,box-shadow .2s}.arena-dashboard .topbar-editions-btn:hover{color:var(--arena-text);background:#ffffff12;border-color:#2a2a2a}.arena-dashboard .topbar-editions-btn.active{color:var(--arena-text);border-color:var(--arena-accent);box-shadow:0 0 0 1px #d4ff001f}.arena-dashboard .topbar-editions-btn:focus-visible{outline:1px solid var(--arena-accent);outline-offset:2px}.arena-dashboard .brand-block{align-items:center;gap:.5rem;min-width:0;display:flex}@media (min-width:640px){.arena-dashboard .brand-block{gap:.75rem}}.arena-dashboard .brand-block-link{color:inherit;text-decoration:none;transition:color .15s}.arena-dashboard .brand-block-link:hover .brand-name{color:var(--arena-accent)}.arena-dashboard .brand-mark{aspect-ratio:1;flex-shrink:0;width:20px;height:20px}@media (min-width:640px){.arena-dashboard .brand-mark{width:24px;height:24px}}.arena-dashboard .brand-text{flex-direction:column;min-width:0;line-height:1.2;display:flex}.arena-dashboard .brand-name{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;text-transform:uppercase;letter-spacing:.2em;color:var(--arena-text);font-size:11px;font-weight:600;transition:color .15s}@media (min-width:640px){.arena-dashboard .brand-name{letter-spacing:.22em;font-size:12px}}.arena-dashboard .nav{flex-wrap:wrap;justify-content:center;gap:1.75rem;display:flex}.arena-dashboard .nav-item{letter-spacing:.14em;color:var(--arena-text-faint);text-transform:uppercase;border-bottom:1px solid #0000;padding:.375rem 0;font-size:.625rem;text-decoration:none;transition:color .2s,border-color .2s}.arena-dashboard .nav-item:hover{color:var(--arena-text)}.arena-dashboard .nav-item.active{color:var(--arena-text);border-bottom-color:var(--arena-accent)}.arena-dashboard .topbar-right{align-items:center;gap:.875rem;display:flex}.arena-dashboard .live-pill{color:var(--arena-text-dim);background:#0e0e0e;border:1px solid #1a1a1a;align-items:center;gap:6px;padding:5px 10px;font-size:.625rem;display:flex}.arena-dashboard .status-dot{background:var(--arena-positive);border-radius:50%;width:6px;height:6px;animation:2s infinite arena-pulse}@keyframes arena-pulse{0%,to{opacity:1;box-shadow:0 0 6px var(--arena-positive)}50%{opacity:.45;box-shadow:none}}.arena-dashboard .user-avatar{background:#0e0e0e;border:1px solid #1a1a1a;align-items:center;gap:10px;padding:5px 10px 5px 5px;display:flex}.arena-dashboard .avatar-icon{background:var(--arena-accent);color:#000;justify-content:center;align-items:center;width:24px;height:24px;font-size:.625rem;font-weight:700;display:flex}.arena-dashboard .avatar-name{color:var(--arena-text-dim);text-overflow:ellipsis;white-space:nowrap;max-width:7rem;font-size:.625rem;overflow:hidden}.arena-dashboard .btn-logout{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-dim);cursor:pointer;background:0 0;border:1px solid #2a2a2a;padding:.35rem .5rem;font-size:.5625rem;transition:border-color .15s,color .15s}.arena-dashboard .btn-logout:hover{border-color:var(--arena-accent);color:var(--arena-text)}.arena-dashboard .btn-admin-nav{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--arena-accent);white-space:nowrap;background:#d4ff000f;border:1px solid #d4ff0059;padding:.35rem .55rem;font-size:.5625rem;text-decoration:none;transition:border-color .15s,color .15s,background .15s}.arena-dashboard .btn-admin-nav:hover{border-color:var(--arena-accent);color:#e8ff4d;background:#d4ff001a}.arena-dashboard .btn-admin-nav--active{border-color:var(--arena-accent);background:#d4ff001f}.arena-dashboard .arena-theme-select-wrap{align-items:center;gap:.4rem;display:inline-flex}.arena-dashboard .arena-theme-select-label{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text-faint);font-size:.5rem}.arena-dashboard .arena-theme-select{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--arena-border-card);color:var(--arena-text-dim);background:color-mix(in srgb, var(--arena-bg) 88%, var(--arena-accent-soft));cursor:pointer;appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--arena-text-faint) 50%), linear-gradient(135deg, var(--arena-text-faint) 50%, transparent 50%);background-position:calc(100% - 11px) calc(50% - 2px),calc(100% - 7px) calc(50% - 2px);background-repeat:no-repeat;background-size:4px 4px,4px 4px;padding:.35rem 1.5rem .35rem .5rem;font-size:.5625rem;transition:border-color .15s,color .15s}.arena-dashboard .arena-theme-select:hover:not(:disabled){border-color:var(--arena-accent-border);color:var(--arena-text)}.arena-dashboard .arena-theme-select:disabled{opacity:.55;cursor:wait}.arena-dashboard .arena-theme-select:focus-visible{outline:2px solid var(--arena-accent);outline-offset:2px}.arena-dashboard--admin .admin-shell-body{flex-direction:row;flex:1;min-height:0;display:flex;overflow:hidden}.arena-dashboard--admin .admin-sidebar{border-right:1px solid var(--arena-border);background:#06060680;flex-shrink:0;width:216px;padding:1.25rem 0 1.25rem 1.75rem}.arena-dashboard--admin .admin-sidebar-section-label{letter-spacing:.16em;color:var(--arena-text-faint);margin-bottom:.875rem;padding-right:1rem;font-size:.5625rem}.arena-dashboard--admin .admin-sidebar-nav{flex-direction:column;gap:4px;padding-right:0;display:flex}.arena-dashboard--admin .admin-sidebar-link{letter-spacing:.08em;text-transform:uppercase;color:var(--arena-text-dim);border:1px solid #0000;border-right:none;border-radius:2px 0 0 2px;margin-right:-1px;padding:.5rem .85rem;font-size:.6875rem;text-decoration:none;transition:color .15s,border-color .15s,background .15s;display:block}.arena-dashboard--admin .admin-sidebar-link:hover{color:var(--arena-text);background:#ffffff08}.arena-dashboard--admin .admin-sidebar-link--active{color:var(--arena-accent);border-color:var(--arena-border-card);background:#d4ff000f}.arena-dashboard--admin .admin-shell-main{flex:1;min-width:0;padding:1.75rem 1.75rem 2rem;overflow:auto}.arena-dashboard--admin .admin-topbar-crumb{justify-self:center}.admin-overview,.admin-section-page{max-width:48rem}.admin-section-page.admin-users,.admin-section-page.admin-editions,.admin-section-page.admin-edition-invitations,.admin-section-page.admin-challenges,.admin-section-page.admin-user-edit,.admin-section-page.admin-runs,.admin-section-page.admin-runs-detail{width:100%;max-width:none}.admin-editions-heading-row{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:.25rem;display:flex}.admin-editions-toolbar{flex-wrap:wrap;align-items:flex-end;gap:1rem 1.25rem;display:flex}.admin-editions-status-wrap{flex-direction:column;gap:.35rem;display:flex}.admin-editions-status-label{letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-faint);font-size:.5625rem}.admin-editions-status-select{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;border:1px solid var(--arena-border);background:var(--arena-bg-elevated);color:var(--arena-text);cursor:pointer;border-radius:2px;min-width:10rem;padding:.45rem .55rem;font-size:.6875rem}.admin-editions-status-select:focus{border-color:var(--arena-accent-border);outline:none}.admin-editions-table{min-width:50rem}.admin-challenges-toolbar{align-items:flex-end}.admin-challenges-table{min-width:52rem}.admin-challenges-edition-gate{border:1px solid var(--arena-border);background:#0808088c;max-width:32rem;margin:0 0 1.35rem;padding:1.15rem 1.25rem}.admin-challenges-edition-gate__title{letter-spacing:.06em;color:var(--arena-text);margin:0 0 .35rem;font-size:.6875rem}.admin-challenges-edition-gate__lead{color:var(--arena-text-dim);margin:0 0 1rem;font-size:.625rem;line-height:1.55}.admin-challenges-edition-select{max-width:100%}.admin-challenges-edition-context{border-left:2px solid var(--arena-accent-border);background:#d4ff000a;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.65rem 1rem;margin:0 0 1.15rem;padding:.65rem .85rem;display:flex}.admin-challenges-edition-context__label{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--arena-accent);margin:0;font-size:.625rem}.admin-challenges-change-edition{flex:none;padding:.3rem .5rem;font-size:.5625rem}.admin-challenges-new-disabled{display:inline-flex}.admin-challenges-new-disabled .btn:disabled{pointer-events:none}.admin-challenges-slug-cell{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;color:var(--arena-text-dim);font-size:.6875rem}.admin-challenge-form-inline-pair{grid-template-columns:1fr 1fr;gap:0 1rem;margin-bottom:.25rem;display:grid}@media (max-width:720px){.admin-challenge-form-inline-pair{grid-template-columns:1fr}}.arena-dashboard--admin .admin-challenge-form-two.admin-user-form,.arena-dashboard--admin .admin-edition-form-two.admin-user-form{width:100%;max-width:none}.admin-edition-form-two-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:1.25rem 2.25rem;display:grid}.admin-edition-form-column{min-width:0}.admin-edition-prefill-bar{border:1px dashed var(--arena-border);background:var(--arena-bg-elevated);flex-wrap:wrap;align-items:center;gap:.65rem 1rem;margin:.5rem 0 1.25rem;padding:.65rem .75rem;display:flex}.arena-dashboard--admin .admin-edition-prefill-btn{flex:none;min-width:0}.admin-edition-metric-checks{flex-wrap:wrap;gap:.5rem 1rem;margin-top:.35rem;display:flex}.admin-edition-metric-check{color:var(--arena-text-dim);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:.4rem;font-size:.6875rem;display:inline-flex}.admin-edition-metric-check input{width:14px;height:14px;accent-color:var(--arena-accent)}.admin-edition-participants-link{margin:0 0 1.25rem}.admin-inv-header{align-items:flex-start;margin-bottom:.35rem}.admin-inv-header-main{min-width:0}.admin-inv-edition-code{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-faint);margin:.35rem 0 0;font-size:.625rem}.admin-inv-visibility-pill{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;text-transform:uppercase;border:1px solid var(--arena-border-card);color:var(--arena-text-dim);background:#ffffff08;border-radius:2px;flex-shrink:0;padding:.35rem .55rem;font-size:.5rem;font-weight:700}.admin-inv-visibility-pill--private{color:var(--arena-accent);border-color:var(--arena-accent-border);background:#d4ff000f;box-shadow:0 0 0 1px #d4ff0014}.admin-inv-meta{margin-top:.65rem}.admin-inv-meta-mono{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;color:var(--arena-text)}.admin-inv-meta-count{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;color:var(--arena-accent);font-size:.8125rem}.admin-inv-callout{border-left:2px solid var(--arena-accent-border);background:#d4ff000a;margin:0 0 1.35rem;padding:.85rem 1rem .85rem .95rem}.admin-inv-callout p{color:var(--arena-text-dim);max-width:44rem;margin:0;font-size:.6875rem;line-height:1.6}.admin-inv-layout{flex-direction:column;gap:1.25rem;display:flex}.admin-inv-panel{border:1px solid var(--arena-border);background:#0808088c}.admin-inv-panel--notice{background:var(--arena-bg-elevated);border-style:dashed}.admin-inv-panel__head{border-bottom:1px solid var(--arena-border);background:#ffffff05;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 1rem;padding:.7rem 1.15rem;display:flex}.admin-inv-panel__title{letter-spacing:.16em;text-transform:uppercase;color:var(--arena-text-faint);margin:0;font-size:.5625rem;font-weight:700}.admin-inv-panel__body{padding:1.15rem 1.25rem 1.25rem}.admin-inv-notice-text{color:var(--arena-text-dim);max-width:40rem;margin:0 0 .85rem;font-size:.6875rem;line-height:1.55}.admin-inv-notice-btn{flex:none}.admin-inv-add-form{max-width:36rem}.admin-inv-add-field{margin-bottom:0}.admin-inv-add-row{flex-wrap:wrap;align-items:stretch;gap:.65rem;display:flex}.admin-inv-add-row .admin-user-field{flex:14rem;min-width:0}.arena-dashboard--admin .admin-inv-add-btn.btn-primary{flex:none;align-self:flex-end;width:auto;min-width:0;padding:.5rem .85rem;font-size:.625rem}.admin-inv-count-badge{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.08em;text-align:center;min-width:1.75rem;color:var(--arena-accent);border:1px solid var(--arena-accent-border);background:#d4ff000f;border-radius:2px;padding:.2rem .45rem;font-size:.625rem;font-weight:700}.admin-inv-empty{text-align:center;border-top:1px solid #0000;margin:0;padding:2rem 1.25rem}.admin-inv-panel--list .admin-inv-empty{border-top:none}.admin-inv-empty__title{letter-spacing:.06em;color:var(--arena-text-dim);margin:0 0 .4rem;font-size:.6875rem}.admin-inv-empty__hint{max-width:22rem;color:var(--arena-text-faint);margin:0 auto;font-size:.625rem;line-height:1.55}.admin-inv-table-wrap{border-top:none;margin:0}.admin-inv-table{min-width:28rem}.admin-inv-table .admin-inv-email{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;color:var(--arena-text);word-break:break-all;font-size:.75rem}.admin-inv-table .admin-inv-date{color:var(--arena-text-dim);white-space:nowrap;font-size:.6875rem}@media (min-width:900px){.admin-inv-layout{grid-template-columns:minmax(0,22rem) minmax(0,1fr);align-items:start;gap:1.25rem;display:grid}.admin-inv-panel--add{position:sticky;top:1rem}}@media (max-width:960px){.admin-edition-form-two-grid{grid-template-columns:1fr}}.admin-challenge-form-two-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);align-items:start;gap:1.25rem 2.25rem;display:grid}@media (max-width:960px){.admin-challenge-form-two-grid{grid-template-columns:1fr}}.admin-challenge-surface-block{margin-top:.25rem}.admin-challenge-surface-grid{grid-template-columns:1fr;gap:.75rem;display:grid}@media (min-width:720px){.admin-challenge-surface-grid{grid-template-columns:1fr 1fr}}.admin-challenge-surface-code{font-family:var(--font-arena-jb,ui-monospace, monospace);font-size:.8rem;line-height:1.35}.admin-challenge-form-tabs{border-bottom:1px solid color-mix(in srgb, var(--constraint-text,#e8e8e8) 14%, transparent);flex-wrap:wrap;gap:.35rem;margin:0 0 1rem;padding:0;display:flex}.admin-challenge-form-tab{font:inherit;letter-spacing:.04em;text-transform:uppercase;color:color-mix(in srgb, var(--constraint-text,#e8e8e8) 72%, transparent);cursor:pointer;background:0 0;border:1px solid #0000;border-bottom:none;border-radius:.35rem .35rem 0 0;margin:0 0 -1px;padding:.45rem .85rem;font-size:.82rem}.admin-challenge-form-tab:hover,.admin-challenge-form-tab:focus-visible{color:var(--constraint-text,#e8e8e8);outline:none}.admin-challenge-form-tab--active{color:var(--constraint-text,#e8e8e8);border-color:color-mix(in srgb, var(--constraint-text,#e8e8e8) 18%, transparent);border-bottom-color:var(--constraint-bg,#0a0a0a);background:color-mix(in srgb, var(--constraint-text,#e8e8e8) 6%, transparent)}.admin-challenge-surface-grid--studio-options{margin-bottom:.5rem}@media (min-width:720px){.admin-challenge-surface-grid--studio-options{grid-template-columns:1fr 1fr}}.admin-challenge-surface-studio{width:100%;min-width:0}.admin-challenge-surface-studio-split--primary{margin-top:0;margin-bottom:.5rem}.admin-challenge-surface-studio-heading--after-primary{border-top:1px solid color-mix(in srgb, var(--constraint-text,#e8e8e8) 12%, transparent);margin-top:0;margin-bottom:.35rem;padding-top:.75rem}.admin-challenge-surface-studio-heading{align-items:flex-start;gap:.35rem;margin-bottom:.35rem;display:flex}.admin-challenge-surface-studio-heading .admin-user-form-label{flex:1;min-width:0;margin:0}.admin-challenge-surface-intro-sr-only{clip:rect(0, 0, 0, 0);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.admin-challenge-surface-intro-tooltip{flex-shrink:0;margin-top:.05rem;position:relative}.admin-challenge-surface-intro-tooltip-btn{color:color-mix(in srgb, var(--constraint-text,#e8e8e8) 55%, transparent);cursor:help;background:0 0;border:none;border-radius:.3rem;justify-content:center;align-items:center;margin:0;padding:.2rem;display:flex}.admin-challenge-surface-intro-tooltip-btn:hover,.admin-challenge-surface-intro-tooltip-btn:focus-visible{color:var(--constraint-accent,#d4ff00);outline:none}.admin-challenge-surface-intro-tooltip-icon{width:1.15rem;height:1.15rem}.admin-challenge-surface-intro-tooltip-panel{z-index:50;letter-spacing:normal;text-transform:none;min-width:14rem;max-width:min(32rem,100vw - 2.5rem);color:var(--constraint-text,#e8e8e8);border:1px solid color-mix(in srgb, var(--constraint-text,#e8e8e8) 18%, transparent);opacity:0;visibility:hidden;pointer-events:none;background:#141414;border-radius:.4rem;padding:.65rem .85rem;font-size:.78rem;font-weight:400;line-height:1.45;transition:opacity .12s,visibility .12s;position:absolute;top:calc(100% + .35rem);right:0;box-shadow:0 8px 28px #00000073}.admin-challenge-surface-intro-tooltip:is(:hover,:focus-within) .admin-challenge-surface-intro-tooltip-panel{opacity:1;visibility:visible;pointer-events:auto}.admin-challenge-surface-studio-base-block{margin:0 0 .85rem}.admin-challenge-surface-studio-base-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.35rem .75rem;margin-bottom:.35rem;display:flex}.admin-challenge-surface-studio-base-defaults-btn{flex-shrink:0;padding:.25rem .55rem;font-size:.78rem}.admin-challenge-surface-studio-base-css{resize:vertical;min-height:8rem}.admin-challenge-surface-studio-split{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);align-items:start;gap:1.25rem 1.5rem;margin-top:.35rem;display:grid}@media (max-width:1100px){.admin-challenge-surface-studio-split{grid-template-columns:1fr}}.admin-challenge-surface-studio-code-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem .75rem;margin:0 0 .35rem;display:flex}.admin-challenge-surface-studio-code-head-actions{flex-wrap:wrap;align-items:center;gap:.35rem .5rem;display:flex}.admin-challenge-surface-studio-format-btn{flex-shrink:0;padding:.3rem .65rem;font-size:.78rem}.admin-challenge-surface-studio-code-head .admin-challenge-surface-studio-subhead{margin:0}.admin-challenge-surface-studio-layer{border:1px solid color-mix(in srgb, var(--constraint-text,#e8e8e8) 16%, transparent);border-radius:.35rem;flex-wrap:wrap;gap:0;display:inline-flex;overflow:hidden}.admin-challenge-surface-studio-layer-btn{font:inherit;letter-spacing:.05em;text-transform:uppercase;color:color-mix(in srgb, var(--constraint-text,#e8e8e8) 65%, transparent);cursor:pointer;background:0 0;border:none;margin:0;padding:.35rem .75rem;font-size:.75rem;font-weight:600}.admin-challenge-surface-studio-layer-btn+.admin-challenge-surface-studio-layer-btn{border-left:1px solid color-mix(in srgb, var(--constraint-text,#e8e8e8) 14%, transparent)}.admin-challenge-surface-studio-layer-btn:hover,.admin-challenge-surface-studio-layer-btn:focus-visible{color:var(--constraint-text,#e8e8e8);outline:none}.admin-challenge-surface-studio-layer-btn--active{color:var(--constraint-bg,#0a0a0a);background:var(--constraint-accent,#d4ff00)}.admin-challenge-surface-studio-layer-hint{margin:0 0 .6rem}.admin-challenge-surface-studio-previews>.admin-challenge-surface-studio-subhead{margin:0 0 .5rem}.admin-challenge-surface-studio-subhead{letter-spacing:.06em;text-transform:uppercase;color:color-mix(in srgb, var(--constraint-text,#e8e8e8) 58%, transparent);margin:0 0 .5rem;font-size:.72rem;font-weight:600}.admin-challenge-surface-studio-code-grid{grid-template-columns:1fr;gap:.75rem;display:grid}@media (min-width:640px){.admin-challenge-surface-studio-code-grid{grid-template-columns:1fr 1fr}}.admin-challenge-surface-studio-code-grid .admin-challenge-surface-code{resize:vertical;min-height:12rem}.admin-challenge-surface-studio-preview-pair{grid-template-columns:1fr 1fr;gap:.75rem;min-width:0;display:grid}@media (max-width:720px){.admin-challenge-surface-studio-preview-pair{grid-template-columns:1fr}}.admin-challenge-surface-studio-frame{border:1px solid color-mix(in srgb, var(--constraint-text,#e8e8e8) 16%, transparent);background:color-mix(in srgb, var(--constraint-text,#e8e8e8) 4%, transparent);border-radius:.4rem;flex-direction:column;min-width:0;display:flex;overflow:hidden}.admin-challenge-surface-studio-frame-head{letter-spacing:.04em;text-transform:uppercase;color:color-mix(in srgb, var(--constraint-text,#e8e8e8) 75%, transparent);border-bottom:1px solid color-mix(in srgb, var(--constraint-text,#e8e8e8) 12%, transparent);background:color-mix(in srgb, var(--constraint-text,#e8e8e8) 5%, transparent);padding:.35rem .55rem;font-size:.68rem;font-weight:600}.admin-challenge-surface-studio-frame-body{background:#0f0f0f;min-height:14rem;position:relative}.admin-challenge-surface-studio-iframe{background:#0f0f0f;border:0;width:100%;height:16rem;display:block}.admin-challenge-surface-studio-empty{color:color-mix(in srgb, var(--constraint-text,#e8e8e8) 55%, transparent);margin:0;padding:1rem .75rem;font-size:.82rem;line-height:1.45}.admin-challenge-config-tab{width:100%;min-width:0}.admin-challenge-config-json{resize:vertical;min-height:22rem;font-family:var(--font-arena-jb,ui-monospace, monospace);font-size:.8rem;line-height:1.4}.admin-challenge-form-col{min-width:0}.admin-challenge-form-page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 1.25rem;margin:.35rem 0 0;display:flex}.admin-challenge-form-page-header .admin-section-title{flex:1;min-width:min(100%,12rem);margin:0}.admin-challenge-form-header-actions{flex-shrink:0;margin:0;padding:0}.arena-dashboard--admin .admin-challenge-form-header-actions .btn-primary{flex:none;width:auto;min-width:0}.admin-constraints-block{margin-top:.15rem}.admin-constraints-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:.5rem .75rem;display:flex}.admin-constraints-header-actions{flex-wrap:wrap;align-items:center;gap:.35rem .5rem;display:flex}.admin-constraint-add-btn{letter-spacing:.08em;text-transform:uppercase;flex-shrink:0;padding:.35rem .55rem;font-size:.5625rem}.admin-constraint-presets{flex-shrink:0;position:relative}.admin-constraint-presets>summary{list-style:none}.admin-constraint-presets>summary::-webkit-details-marker{display:none}.admin-constraint-presets[open]>summary{color:var(--arena-accent)}.admin-constraint-presets-menu{z-index:20;border:1px solid var(--arena-border);background:var(--arena-bg-elevated);min-width:14rem;margin:0;padding:.35rem 0;list-style:none;position:absolute;top:calc(100% + 4px);right:0;box-shadow:0 8px 24px #00000073}.admin-constraint-preset-option{width:100%;color:var(--arena-text-dim);font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;text-align:left;cursor:pointer;background:0 0;border:none;align-items:baseline;gap:.35rem;padding:.45rem .65rem;font-size:.6875rem;transition:background .12s,color .12s;display:flex}.admin-constraint-preset-option:hover{color:var(--arena-text);background:#d4ff000f}.admin-constraint-preset-k{color:var(--arena-accent);font-weight:600}.admin-constraint-preset-sep{color:var(--arena-text-faint);flex-shrink:0}.admin-constraint-preset-v{word-break:break-all;min-width:0}.admin-constraints-intro{max-width:none;margin:.35rem 0 .65rem}.admin-constraints-sublabel{letter-spacing:.1em;text-transform:uppercase;color:var(--arena-text-faint);margin-bottom:.35rem;font-size:.5625rem;display:block}.admin-constraint-rows{flex-direction:column;gap:.75rem;display:flex}.admin-constraint-row{border:1px solid var(--arena-border);background:#0a0a0a66;border-radius:2px;grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:end;gap:.5rem .65rem;padding:.65rem .75rem;display:grid}@media (max-width:640px){.admin-constraint-row{grid-template-columns:1fr}.admin-constraint-remove-btn{justify-self:start}}.admin-constraint-cell{min-width:0}.admin-constraint-remove-btn{min-width:2.25rem;color:var(--arena-text-dim);flex-shrink:0;justify-content:center;align-items:center;padding:.4rem .5rem;display:inline-flex}.admin-constraint-trash-icon{flex-shrink:0;width:1.1rem;height:1.1rem}.admin-constraint-remove-btn:hover{color:var(--arena-negative)}.admin-constraint-remove-btn:hover .admin-constraint-trash-icon{color:inherit}.admin-constraints-block .admin-user-form-hint:last-child{margin-top:.65rem}.admin-section-title{font-family:var(--font-arena-display), system-ui, sans-serif;letter-spacing:-.02em;color:var(--arena-text);margin:.35rem 0 0;font-size:clamp(1.25rem,2.2vw,1.5rem);font-weight:600}.admin-users-toolbar{margin:1.25rem 0 1rem}.admin-users-search-field{border:1px solid var(--arena-border);background:var(--arena-bg-elevated);border-radius:2px;align-items:stretch;max-width:26rem;display:flex;overflow:hidden}.admin-users-search-input{width:100%;min-width:0;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;color:var(--arena-text);background:0 0;border:none;flex:1;padding:.45rem .6rem;font-size:.6875rem}.admin-users-search-input::placeholder{color:var(--arena-text-faint)}.admin-users-search-input:focus{outline:none}.admin-users-search-field:focus-within{border-color:var(--arena-accent-border)}.admin-users-search-submit{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;border:none;border-left:1px solid var(--arena-border);color:var(--arena-accent);cursor:pointer;background:#d4ff0012;flex-shrink:0;padding:0 .65rem;font-size:.5rem;font-weight:600;transition:background .15s,color .15s}.admin-users-search-submit:hover{color:#e8ff4d;background:#d4ff001f}.admin-users-th-actions{text-align:right;width:1%}.admin-users-actions{text-align:right;white-space:nowrap;vertical-align:middle}.admin-users-action{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--arena-border);cursor:pointer;color:var(--arena-text-dim);background:0 0;margin-left:.35rem;padding:.28rem .45rem;font-size:.5rem;font-weight:600;text-decoration:none;transition:border-color .15s,color .15s,background .15s;display:inline-block}.admin-users-action:first-child{margin-left:0}.admin-users-action--edit:hover{border-color:var(--arena-accent-border);color:var(--arena-accent)}.admin-users-action--delete{color:var(--arena-text-dim)}.admin-users-action--delete:hover{color:var(--arena-negative);border-color:#e24b4a8c}.admin-user-edit-back{color:var(--arena-text-dim);letter-spacing:.06em;margin-bottom:1rem;font-size:.6875rem;text-decoration:none;display:inline-block}.admin-user-edit-back:hover{color:var(--arena-accent)}.admin-user-edit-id{color:var(--arena-text-faint);word-break:break-all;font-size:.6875rem;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;margin:0 0 .75rem}.admin-user-meta-strip{border:1px solid var(--arena-border);background:#0a0a0a73;grid-template-columns:repeat(auto-fill,minmax(10.5rem,1fr));gap:1rem 1.5rem;margin:1rem 0 1.35rem;padding:1rem 1.25rem;display:grid}.admin-user-meta-strip dt{letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text-faint);margin-bottom:.25rem;font-size:.5rem}.admin-user-meta-strip dd{color:var(--arena-text-dim);margin:0;font-size:.6875rem}.admin-user-form{max-width:28rem;margin-top:.25rem}.admin-user-form-row{margin-bottom:1.1rem}.admin-user-form-row--inline{flex-wrap:wrap;align-items:center;gap:.65rem 1rem;display:flex}.admin-user-form-label{letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-faint);margin-bottom:.35rem;font-size:.5625rem;display:block}.admin-user-field{box-sizing:border-box;width:100%;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;border:1px solid var(--arena-border);background:var(--arena-bg-elevated);color:var(--arena-text);padding:.5rem .65rem;font-size:.75rem;display:block}.admin-user-field:focus{border-color:var(--arena-accent-border);outline:none}.admin-user-field:disabled{opacity:.55;cursor:not-allowed}.admin-user-field--select{cursor:pointer}.admin-user-readonly{color:var(--arena-text-dim);word-break:break-word;padding:.45rem 0;font-size:.75rem}.admin-user-form-hint{color:var(--arena-text-faint);max-width:26rem;font-size:.5625rem;line-height:1.45;display:block}.admin-user-form-row--inline .admin-user-form-hint{flex:12rem;margin:0}.admin-user-check{color:var(--arena-text-dim);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:.45rem;font-size:.6875rem;display:inline-flex}.admin-user-check input{width:14px;height:14px;accent-color:var(--arena-accent);cursor:pointer}.admin-user-check input:disabled{cursor:not-allowed;opacity:.65}.admin-user-form-actions{margin-top:1.35rem;padding-top:.25rem}.admin-users-meta{color:var(--arena-text-dim);letter-spacing:.04em;margin:0 0 .75rem;font-size:.6875rem}.admin-users-status{color:var(--arena-text-dim);margin:.75rem 0;font-size:.75rem}.admin-users-status--error{color:var(--arena-negative)}.admin-users-table-wrap{border:1px solid var(--arena-border);background:#0a0a0a8c;width:100%;overflow-x:auto}.admin-users-table{border-collapse:collapse;text-align:left;table-layout:auto;width:100%;min-width:56rem;font-size:.6875rem}.admin-users-table th,.admin-users-table td{border-bottom:1px solid var(--arena-border);vertical-align:top;padding:.6rem .85rem}.admin-users-table th{letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-faint);white-space:nowrap;font-size:.5625rem;font-weight:600}.admin-users-table tbody tr:last-child td{border-bottom:none}.admin-users-table tbody tr:hover td{background:#ffffff05}.admin-users-pagination{gap:.5rem;margin-top:1rem;display:flex}.admin-page-card{border:1px solid var(--arena-border);background:#0e0e0e99;max-width:40rem;margin:0 auto;padding:1.5rem 1.75rem}.admin-page-heading{font-family:var(--font-arena-display), system-ui, sans-serif;letter-spacing:-.02em;color:var(--arena-text);margin:.35rem 0 .75rem;font-size:clamp(1.35rem,2.5vw,1.75rem);font-weight:600}.admin-page-lead{color:var(--arena-text-dim);margin:0;font-size:.8125rem;line-height:1.55}.arena-dashboard .ticker{border-bottom:1px solid var(--arena-border);background:#080808;flex-shrink:0;align-items:center;height:34px;display:flex;position:relative;overflow:hidden}.arena-dashboard .ticker-label{z-index:2;opacity:1;background:var(--arena-accent);color:#000;letter-spacing:.16em;height:100%;box-shadow:10px 0 14px 8px var(--arena-bg);flex-shrink:0;align-items:center;padding:0 14px;font-size:.5625rem;font-weight:700;display:flex;position:relative}.arena-dashboard .ticker-track{z-index:0;white-space:nowrap;gap:2.25rem;padding:0 20px;animation:40s linear infinite arena-scroll;display:flex;position:relative}@keyframes arena-scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}.arena-dashboard .ticker-item{color:#5a5a5a;letter-spacing:.06em;font-size:.625rem}.arena-dashboard .ticker-item .t-muted{color:var(--arena-text)}.arena-dashboard .ticker-item .up{color:var(--arena-positive)}.arena-dashboard .ticker-item .down{color:var(--arena-negative)}.arena-dashboard .main{flex:1;grid-template-rows:minmax(0,1fr);grid-template-columns:360px minmax(0,1fr);gap:0;min-height:0;display:grid;overflow:hidden}.arena-dashboard .main.main-dashboard-home{flex-direction:column;display:flex;overflow:hidden}.arena-dashboard .main-dashboard-home .main-grid-columns{flex:1;grid-template-rows:minmax(0,1fr);grid-template-columns:360px minmax(0,1fr);gap:0;min-height:0;display:grid;overflow:hidden}.arena-dashboard .col{min-height:0;padding:1.5rem}.arena-dashboard .col-left{border-right:1px solid var(--arena-border);overflow:hidden}.arena-dashboard .col-middle{-webkit-overflow-scrolling:touch;overflow:hidden auto}.arena-dashboard .col-right{border-left:1px solid var(--arena-border);background:var(--arena-bg-rail);overflow:hidden}.arena-dashboard .main.main-dashboard-home .col-left{padding-left:.65rem;padding-right:1.25rem}.arena-dashboard .main.main-dashboard-home .col-left .edition-card{border-color:#ffffff14;border-radius:4px;padding:.85rem .75rem 1rem .55rem;box-shadow:inset 0 1px #ffffff0d,0 4px 20px #00000059}@media (max-width:1100px){.arena-dashboard .main:not(.main-dashboard-home){-webkit-overflow-scrolling:touch;grid-template-rows:none;grid-template-columns:1fr;overflow-y:auto}.arena-dashboard .main-dashboard-home .main-grid-columns{grid-template-rows:none;grid-template-columns:1fr;min-height:0;overflow-y:visible}.arena-dashboard .col-left,.arena-dashboard .col-middle,.arena-dashboard .col-right{min-height:0;overflow:hidden visible}.arena-dashboard .col-left,.arena-dashboard .col-right{border-left:none;border-right:none;overflow:visible}.arena-dashboard .col-right{border-top:1px solid var(--arena-border)}.arena-dashboard .main.main-dashboard-home .col-left{padding-left:1.5rem;padding-right:1.5rem}.arena-dashboard .main.main-dashboard-home .col-left .edition-card{padding:1.125rem}}.arena-dashboard .section-label{letter-spacing:.16em;color:#3a3a3a;text-transform:uppercase;align-items:center;gap:8px;margin-bottom:.875rem;font-size:.5625rem;display:flex}.arena-dashboard .section-label:before{content:"";background:var(--arena-accent);width:4px;height:4px}.arena-dashboard .section-label.muted:before{background:#3a3a3a}.arena-dashboard .edition-card{border:1px solid var(--arena-border-card);background:linear-gradient(#ffffff09 0%,#0000 40%),linear-gradient(#101010 0%,#0a0a0a 100%);border-radius:4px;margin-bottom:1.5rem;padding:1.125rem;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff0a,0 4px 18px #00000052}.arena-dashboard .edition-muted{color:var(--arena-text-muted,#888);font-size:.8125rem;line-height:1.45;position:relative}.arena-dashboard .challenge-card>.edition-muted{padding:.35rem .75rem}.arena-dashboard .home-edition-picker{margin-bottom:.75rem}.arena-dashboard .home-edition-picker-label{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text-muted,#888);margin-bottom:.35rem;font-size:.5625rem;font-weight:700;display:block}.arena-dashboard .home-edition-select{width:100%;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;border:1px solid var(--arena-border-card);color:var(--arena-text);cursor:pointer;background:#0a0a0a;border-radius:2px;padding:.5rem .65rem;font-size:.75rem}.arena-dashboard .home-edition-select:focus{outline:1px solid var(--arena-accent);outline-offset:1px}.arena-dashboard .home-edition-empty-aside{flex-direction:column;align-items:flex-start;gap:1rem;display:flex}.arena-dashboard .home-edition-empty-aside-copy{margin:0}.arena-dashboard .arena-editions-explorer{background:var(--arena-bg-elevated);border:1px dashed #1e1e1e;border-radius:3px;width:100%;margin:0;padding:.9rem .75rem;scroll-margin-top:.75rem}.arena-dashboard .arena-editions-explorer__lead{text-align:left;width:100%;margin:0 0 .7rem;padding:0;font-size:.8125rem;line-height:1.45}.arena-dashboard .arena-editions-explorer__state{text-align:center;width:100%;margin:0;padding:.65rem .25rem;font-size:.8125rem;line-height:1.45}.arena-dashboard .arena-editions-explorer__grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,284px),1fr));gap:.7rem;width:100%;margin:0;padding:0;display:grid}@media (min-width:720px){.arena-dashboard .arena-editions-explorer__grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,336px),1fr));gap:.85rem}}.arena-dashboard .arena-editions-explorer__card{width:100%;min-width:0;color:var(--arena-text);cursor:pointer;text-align:left;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;background:linear-gradient(#ffffff0b 0%,#0000 38%),linear-gradient(165deg,#161616 0%,#0c0c0c 50%,#080808 100%);border:1px solid #ffffff12;border-radius:4px;flex-direction:column;align-items:flex-start;gap:.45rem;margin:0;padding:.75rem .65rem .65rem;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s;display:flex;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff0a,0 2px 8px #00000059}.arena-dashboard .arena-editions-explorer__card:after{content:"";opacity:0;pointer-events:none;background:radial-gradient(120% 85% at 100% 0,#d4ff0017,#0000 58%);transition:opacity .22s;position:absolute;inset:0}.arena-dashboard .arena-editions-explorer__card:hover{border-color:#d4ff0061;transform:translateY(-1px);box-shadow:inset 0 1px #ffffff0f,0 0 0 1px #d4ff001f,0 10px 32px #0000006b}.arena-dashboard .arena-editions-explorer__card:hover:after{opacity:1}.arena-dashboard .arena-editions-explorer__card:focus{outline:none}.arena-dashboard .arena-editions-explorer__card:focus-visible{outline:1px solid var(--arena-accent);outline-offset:2px}.arena-dashboard .arena-editions-explorer__status{letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-muted,#888);opacity:.95;z-index:1;font-size:.5625rem;font-weight:700;position:relative}.arena-dashboard .arena-editions-explorer__theme{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;letter-spacing:.1em;color:var(--arena-accent);z-index:1;font-size:.6875rem;font-weight:700;line-height:1.25;position:relative}.arena-dashboard .arena-editions-explorer__name{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);letter-spacing:-.02em;z-index:1;font-size:1rem;font-weight:700;line-height:1.22;position:relative}.arena-dashboard .arena-editions-explorer__dates{color:var(--arena-text-muted,#888);z-index:1;margin-top:.05rem;font-size:.6875rem;line-height:1.35;position:relative}.arena-dashboard .arena-editions-explorer__cta{letter-spacing:.12em;text-transform:uppercase;width:100%;color:var(--arena-accent);z-index:1;border-top:1px solid #ffffff0f;margin-top:.25rem;padding-top:.35rem;font-size:.625rem;font-weight:700;position:relative}.arena-dashboard .edition-card:before{content:"E.001";font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:#0f0f0f;letter-spacing:-.04em;font-size:4rem;font-weight:700;line-height:1;position:absolute;top:-12px;right:-8px}.arena-dashboard .edition-card>*{position:relative}.arena-dashboard .edition-name-row{justify-content:space-between;align-items:flex-start;gap:.5rem;margin-bottom:4px;display:flex}.arena-dashboard .edition-name{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);letter-spacing:-.02em;flex:1;min-width:0;margin-bottom:0;font-size:1.375rem;font-weight:700;line-height:1.2}.arena-dashboard .edition-reg-wait{letter-spacing:.08em;color:#666;text-align:right;flex-shrink:0;align-self:center;max-width:4.5rem;font-size:.5rem;line-height:1.3}.arena-dashboard .edition-join-chip{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;background:var(--arena-accent);color:#000;cursor:pointer;text-align:center;box-shadow:0 0 12px var(--arena-accent-glow);border:1px solid #0000;flex-shrink:0;align-self:flex-start;padding:.5rem .75rem;font-size:.625rem;font-weight:700;line-height:1.2;transition:background .15s,box-shadow .15s}.arena-dashboard .edition-join-chip:hover:not(:disabled){box-shadow:0 0 20px var(--arena-accent-glow);background:#e8ff4d}.arena-dashboard .edition-join-chip:disabled{opacity:.55;cursor:wait}.arena-dashboard .edition-participating-badge{text-align:right;background:var(--arena-accent);color:#050505;max-width:7.5rem;box-shadow:0 0 18px var(--arena-accent-glow), 0 0 2px var(--arena-accent);border-radius:2px;flex-direction:column;flex-shrink:0;align-items:flex-end;gap:1px;padding:.35rem .5rem;animation:2.8s ease-in-out infinite edition-participating-glow;display:flex}.arena-dashboard .edition-participating-badge-main{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;letter-spacing:.1em;text-transform:uppercase;font-size:.5625rem;font-weight:800;line-height:1.15}.arena-dashboard .edition-participating-badge-sub{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;text-transform:uppercase;opacity:.88;font-size:.4375rem;font-weight:700;line-height:1.2}@keyframes edition-participating-glow{0%,to{box-shadow:0 0 14px var(--arena-accent-glow), 0 0 1px var(--arena-accent)}50%{box-shadow:0 0 28px var(--arena-accent-glow), 0 0 4px var(--arena-accent)}}.arena-dashboard .edition-theme{color:var(--arena-accent);letter-spacing:.14em;margin-bottom:1rem;font-size:.5625rem}.arena-dashboard .progress-wrap{margin-bottom:.875rem}.arena-dashboard .progress-label{color:#555;letter-spacing:.06em;justify-content:space-between;margin-bottom:6px;font-size:.5625rem;display:flex}.arena-dashboard .progress-label span{color:var(--arena-text);font-weight:700}.arena-dashboard .progress-track{background:#1a1a1a;width:100%;height:4px;position:relative;overflow:hidden}.arena-dashboard .progress-fill{background:var(--arena-accent);height:4px;position:relative}.arena-dashboard .progress-fill:after{content:"";background:var(--arena-accent);width:8px;height:8px;box-shadow:0 0 8px var(--arena-accent-glow);position:absolute;top:-2px;right:0}.arena-dashboard .edition-stats{grid-template-columns:1fr 1fr;gap:8px;margin-top:.875rem;display:grid}.arena-dashboard .edition-stat-mini{border:1px solid var(--arena-border);background:#0a0a0a;padding:10px}.arena-dashboard .edition-stat-mini .v{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);font-size:1.125rem;font-weight:700;line-height:1}.arena-dashboard .edition-stat-mini .l{color:#444;letter-spacing:.1em;text-transform:uppercase;margin-top:4px;font-size:.5rem}.arena-dashboard .edition-deadline{border-top:1px solid var(--arena-border);margin-top:.875rem;padding-top:.875rem}.arena-dashboard .edition-deadline .l{color:#444;letter-spacing:.1em;text-transform:uppercase;margin-bottom:4px;font-size:.5625rem}.arena-dashboard .edition-deadline .v{color:var(--arena-positive);letter-spacing:.04em;font-size:.75rem;font-weight:600}.arena-dashboard .edition-deadline .v:before{content:"▸ "}.arena-dashboard .lb-tabs{border-bottom:1px solid var(--arena-border);gap:0;margin-bottom:.75rem;display:flex}.arena-dashboard .lb-tab{letter-spacing:.1em;color:#444;cursor:pointer;text-transform:uppercase;background:0 0;border:none;border-bottom:1px solid #0000;padding:6px 10px 7px;font-family:inherit;font-size:.5625rem}.arena-dashboard .lb-tab.active{color:var(--arena-text);border-bottom-color:var(--arena-accent)}.arena-dashboard .lb-tabs--single .lb-tab{cursor:default}.arena-dashboard .lb-list{flex-direction:column;display:flex}.arena-dashboard .lb-list-loading,.arena-dashboard .challenge-track-loading{justify-content:center;align-items:center;min-height:10rem;padding:1.5rem 0;display:flex}.arena-dashboard .challenge-card-loading{justify-content:center;align-items:center;padding:2rem 1rem;display:flex}.arena-dashboard .lb-row{border-bottom:1px solid #131313;grid-template-columns:18px 1fr auto;align-items:center;gap:10px;padding:9px 0;font-size:.6875rem;display:grid}.arena-dashboard .lb-row.you{background:linear-gradient(90deg, var(--arena-accent-soft), transparent);margin-left:-6px;margin-right:-6px;padding-left:6px;padding-right:6px}.arena-dashboard .lb-pos{color:#2e2e2e;font-size:.625rem;font-weight:700}.arena-dashboard .lb-pos.top{color:var(--arena-positive)}.arena-dashboard .lb-pos.you-pos{color:var(--arena-accent)}.arena-dashboard .lb-name{color:#777;font-size:.625rem}.arena-dashboard .lb-name.top{color:var(--arena-text)}.arena-dashboard .lb-name.you-name{color:var(--arena-text);font-weight:600}.arena-dashboard .lb-name .sub{color:#3a3a3a;letter-spacing:.06em;margin-top:2px;font-size:.5rem;display:block}.arena-dashboard .lb-score{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);font-size:.8125rem;font-weight:700}.arena-dashboard .lb-score.you-score{color:var(--arena-accent)}.arena-dashboard .welcome-strip{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:1.375rem;display:flex}.arena-dashboard .welcome-text{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif}.arena-dashboard .welcome-line{color:#555;letter-spacing:.12em;margin-bottom:6px;font-size:.6875rem}.arena-dashboard .welcome-line .blink{color:var(--arena-accent);animation:1s steps(2,end) infinite arena-blink}@keyframes arena-blink{50%{opacity:0}}.arena-dashboard .welcome-name{color:var(--arena-text);letter-spacing:-.03em;font-size:2rem;font-weight:700;line-height:1}.arena-dashboard .welcome-name span{color:var(--arena-accent)}.arena-dashboard .welcome-username{overflow-wrap:anywhere;word-break:break-word}.arena-dashboard .welcome-sub{color:#555;letter-spacing:.04em;max-width:22rem;font-size:.6875rem;line-height:1.5;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;overflow-wrap:anywhere;word-break:break-word;margin-top:8px}.arena-dashboard .session-mini{text-align:right;color:#444;font-size:.625rem}.arena-dashboard .session-mini div{margin-bottom:4px}.arena-dashboard .session-mini span{color:var(--arena-text-dim)}.arena-dashboard .challenge-card{background:var(--arena-bg-elevated);border:1px solid var(--arena-border-card);margin-bottom:1.5rem;position:relative;overflow:hidden}.arena-dashboard .challenge-card:before{content:"";background:linear-gradient(180deg, var(--arena-accent), var(--arena-positive));width:3px;position:absolute;top:0;bottom:0;left:0}.arena-dashboard .challenge-header{border-bottom:1px solid #131313;grid-template-columns:1fr auto auto;align-items:flex-start;gap:1.5rem;padding:1.375rem 1.5rem 1.125rem;display:grid}@media (max-width:720px){.arena-dashboard .challenge-header{grid-template-columns:1fr}}.arena-dashboard .challenge-tag{color:var(--arena-accent);letter-spacing:.16em;text-transform:uppercase;margin-bottom:8px;font-size:.5625rem}.arena-dashboard .challenge-name{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);letter-spacing:-.02em;margin-bottom:6px;font-size:1.75rem;font-weight:700}.arena-dashboard .challenge-desc{color:#a09c9c;max-width:50%;font-size:.9rem;line-height:1.6}.arena-dashboard .difficulty{text-align:center}.arena-dashboard .diff-label{color:#3a3a3a;letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px;font-size:.5rem}.arena-dashboard .diff-dots{justify-content:center;gap:3px;display:flex}.arena-dashboard .diff-dot{background:#1a1a1a;width:6px;height:6px}.arena-dashboard .diff-dot.on{background:var(--arena-negative)}.arena-dashboard .timer-block{text-align:right;flex-shrink:0;width:12.5rem}.arena-dashboard .timer-label{color:#3a3a3a;letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px;font-size:.5rem}.arena-dashboard .timer-value{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-positive);letter-spacing:-.02em;text-shadow:0 0 12px #b8e60040;font-size:1.75rem;font-weight:700;line-height:1}.arena-dashboard .timer-sub{color:#444;letter-spacing:.12em;margin-top:4px;font-size:.5rem}.arena-dashboard .challenge-header-end{flex-direction:column;flex-shrink:0;align-items:flex-end;gap:.875rem;width:fit-content;min-width:12.5rem;max-width:100%;display:flex}@media (max-width:720px){.arena-dashboard .challenge-header-end{width:100%}}.arena-dashboard .challenge-header-end .timer-block{width:100%}.arena-dashboard .constraints-block{padding:1.125rem 1.5rem 1.375rem}.arena-dashboard .constraints-title{color:#959595;letter-spacing:.16em;text-transform:uppercase;margin-bottom:10px;font-size:.8rem}.arena-dashboard .constraints-grid{grid-template-columns:repeat(5,1fr);gap:8px;display:grid}@media (max-width:900px){.arena-dashboard .constraints-grid{grid-template-columns:repeat(2,1fr)}}.arena-dashboard .constraint-cell{border:1px solid var(--arena-border);text-align:left;background:#0e0e0e;padding:10px}.arena-dashboard .constraint-cell .l{color:#959595;letter-spacing:.14em;text-transform:uppercase;font-size:.7rem}.arena-dashboard .constraint-cell .v{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);margin-top:4px;font-size:.875rem;font-weight:700;line-height:1}.arena-dashboard .constraint-cell .u{color:var(--arena-accent);margin-left:3px;font-size:.5625rem;font-weight:500}.arena-dashboard .challenge-actions{flex-flow:row;justify-content:flex-end;align-items:center;gap:10px;padding:0;display:flex}@media (max-width:380px){.arena-dashboard .challenge-actions{flex-wrap:wrap;justify-content:flex-end}}.arena-dashboard .challenge-actions .btn{box-sizing:border-box;justify-content:center;align-items:center;min-height:2.375rem;padding:10px 14px;display:inline-flex}.arena-dashboard .challenge-actions .btn-primary{flex:0 auto;min-width:0;padding:10px 14px}.arena-dashboard .btn{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;cursor:pointer;text-transform:uppercase;border:1px solid #0000;padding:8px 12px;font-size:.6875rem;font-weight:700;transition:all .15s}.arena-dashboard a.btn{justify-content:center;align-items:center;text-decoration:none;display:inline-flex}.arena-dashboard .btn-primary{background:var(--arena-accent);color:#000;flex:1;min-width:10rem}.arena-dashboard .btn-primary:hover{box-shadow:0 0 20px var(--arena-accent-glow);background:#e8ff4d}.arena-dashboard .btn-primary.admin-editions-new{letter-spacing:.1em;flex:none;width:auto;min-width:0;margin-left:auto;padding:.35rem .65rem;font-size:.625rem}.arena-dashboard .btn:disabled{opacity:.5;cursor:not-allowed}.arena-dashboard button.av-card:disabled{opacity:.55;cursor:not-allowed}.arena-dashboard .btn-ghost{color:var(--arena-text-dim);background:0 0;border-color:#2a2a2a}.arena-dashboard .btn-ghost:hover{color:var(--arena-text);border-color:#444}.arena-dashboard .stats-row{grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:1.5rem;display:grid}@media (max-width:720px){.arena-dashboard .stats-row{grid-template-columns:repeat(2,1fr)}}.arena-dashboard .stat-card{background:var(--arena-bg-elevated);border:1px solid var(--arena-border-card);padding:1rem;position:relative;overflow:hidden}.arena-dashboard .stat-card:after{content:"";border-left:1px solid var(--arena-border);border-bottom:1px solid var(--arena-border);width:32px;height:32px;position:absolute;top:0;right:0}.arena-dashboard .stat-l{color:#444;letter-spacing:.14em;text-transform:uppercase;margin-bottom:8px;font-size:.5rem}.arena-dashboard .stat-v{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);font-size:1.625rem;font-weight:700;line-height:1}.arena-dashboard .stat-v .empty{color:#2a2a2a}.arena-dashboard .stat-trend{color:#444;letter-spacing:.04em;margin-top:6px;font-size:.5625rem}.arena-dashboard .av-grid{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:1.5rem;display:grid}@media (max-width:640px){.arena-dashboard .av-grid{grid-template-columns:1fr}}.arena-dashboard .av-card{background:var(--arena-bg-elevated);border:1px solid var(--arena-border-card);cursor:default;padding:1rem;transition:border-color .2s,transform .2s;position:relative}.arena-dashboard a.av-card{color:inherit;cursor:pointer;text-decoration:none;display:block}.arena-dashboard button.av-card{text-align:left;width:100%;font:inherit;color:inherit;cursor:pointer;display:block}.arena-dashboard .av-card:hover{border-color:var(--arena-accent);transform:translateY(-2px)}.arena-dashboard .av-card .h{justify-content:space-between;align-items:flex-start;margin-bottom:10px;display:flex}.arena-dashboard .av-card .n{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);font-size:.875rem;font-weight:700}.arena-dashboard .av-card .s{letter-spacing:.1em;text-transform:uppercase;padding:3px 6px;font-size:.5rem}.arena-dashboard .av-card .s.open{color:var(--arena-positive);background:#b8e6001f;border:1px solid #b8e60059}.arena-dashboard .av-card .s.locked{color:#555;background:#5050501f;border:1px solid #2a2a2a}.arena-dashboard .av-card .d{color:#555;margin-bottom:12px;font-size:.625rem;line-height:1.5}.arena-dashboard .av-card .meta{color:#444;gap:12px;font-size:.5625rem;display:flex}.arena-dashboard .av-card .meta b{color:var(--arena-text-dim);font-weight:500}.arena-dashboard .empty-state{background:var(--arena-bg-elevated);text-align:center;color:#3a3a3a;letter-spacing:.04em;border:1px dashed #1e1e1e;padding:1.5rem;font-size:.6875rem}.arena-dashboard .empty-state .n{color:var(--arena-accent);letter-spacing:.1em;margin-bottom:6px;font-size:.625rem;font-weight:700;display:block}.arena-dashboard .live-feed{flex-direction:column;gap:0;margin-bottom:1.375rem;display:flex}.arena-dashboard .feed-item{border-bottom:1px solid #121212;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:10px 0;font-size:.625rem;display:grid}.arena-dashboard .feed-time{color:#2e2e2e;min-width:30px;font-size:.5625rem}.arena-dashboard .feed-text{color:#777;line-height:1.4}.arena-dashboard .feed-text b{color:var(--arena-text);font-weight:600}.arena-dashboard .feed-text .cmpt{color:var(--arena-accent)}.arena-dashboard .feed-text .gud{color:var(--arena-positive)}.arena-dashboard .feed-text .bad{color:var(--arena-negative)}.arena-dashboard .feed-icon{width:6px;height:6px}.arena-dashboard .feed-icon.run{background:var(--arena-accent)}.arena-dashboard .feed-icon.win{background:var(--arena-positive)}.arena-dashboard .feed-icon.fail{background:var(--arena-negative)}.arena-dashboard .feed-icon.join{background:#888}.arena-dashboard .net-block{background:var(--arena-bg-elevated);border:1px solid var(--arena-border);margin-bottom:1.375rem;padding:14px}.arena-dashboard .net-row{justify-content:space-between;padding:4px 0;font-size:.625rem;display:flex}.arena-dashboard .net-row .l{color:#555;letter-spacing:.04em}.arena-dashboard .net-row .v{color:var(--arena-text);font-weight:600;font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif}.arena-dashboard .net-row .v.gud{color:var(--arena-positive)}.arena-dashboard .dataset-card{background:linear-gradient(180deg, var(--arena-accent-soft), #d4ff0005);border:1px solid var(--arena-accent-border);padding:1rem}.arena-dashboard .dataset-h{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);margin-bottom:4px;font-size:.8125rem;font-weight:700}.arena-dashboard .dataset-d{color:#777;margin-bottom:12px;font-size:.625rem;line-height:1.5}.arena-dashboard .dataset-v{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-accent);font-size:1.375rem;font-weight:700;line-height:1}.arena-dashboard .dataset-vl{color:#555;letter-spacing:.1em;text-transform:uppercase;margin-top:4px;font-size:.5625rem}.arena-dashboard .footer{border-top:1px solid var(--arena-border);color:#3a3a3a;letter-spacing:.1em;background:#050505;flex-wrap:wrap;flex-shrink:0;justify-content:space-between;gap:.75rem;margin-top:0;padding:1.125rem 1.75rem;font-size:.5625rem;display:flex}.arena-dashboard .footer-left,.arena-dashboard .footer-right{flex-wrap:wrap;align-items:center;gap:1.125rem;display:flex}.arena-dashboard .footer-link{color:#555;cursor:pointer;text-decoration:none}.arena-dashboard .footer-link:hover{color:var(--arena-text)}.arena-dashboard .mosaic-reto-topbar-title{justify-content:center;min-width:0;display:flex}.arena-dashboard .mosaic-reto-crumb{letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text-faint);white-space:nowrap;text-overflow:ellipsis;font-size:.5625rem;overflow:hidden}.arena-dashboard .mosaic-reto-crumb a{color:var(--arena-text-dim);text-decoration:none}.arena-dashboard .mosaic-reto-crumb a:hover{color:var(--arena-accent)}.arena-dashboard .mosaic-reto-sep{color:#333;margin:0 .5rem}.arena-dashboard .mosaic-reto-back{min-width:unset;flex:none;padding:10px 14px;font-size:.5625rem;text-decoration:none}.arena-dashboard .mosaic-reto-finalize{min-width:unset;letter-spacing:.14em;text-transform:uppercase;font-size:.5625rem;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;background:var(--arena-accent);color:#000;cursor:pointer;border:1px solid #0000;flex:none;padding:10px 14px;font-weight:700;transition:all .15s}.arena-dashboard .mosaic-reto-finalize:hover:not(:disabled){box-shadow:0 0 16px var(--arena-accent-glow);background:#e8ff4d}.arena-dashboard .mosaic-reto-finalize:disabled{opacity:.55;cursor:not-allowed}.arena-dashboard.arena-dashboard--web-skill-run .main{grid-template-columns:minmax(0,1fr) minmax(300px,28rem);width:100%;max-width:none;margin:0}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-stage{border-right:1px solid var(--arena-border);flex-direction:column;min-height:0;display:flex;overflow:hidden}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-meta{flex-shrink:0;padding:1.25rem 1.5rem .75rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-tag{letter-spacing:.16em;color:var(--arena-accent);margin-bottom:.35rem;font-size:.5rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-title-row{justify-content:space-between;align-items:center;gap:1rem 1.5rem;min-width:0;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-title{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;letter-spacing:.04em;color:var(--arena-text);flex:1;min-width:0;margin:0;font-size:1.25rem;font-weight:700;line-height:1.2}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text);cursor:pointer;background:#d4ff001a;border:1px solid #d4ff0080;border-radius:2px;flex-shrink:0;justify-content:center;align-items:center;gap:.5rem;margin:0;padding:10px 16px;font-size:.5625rem;font-weight:700;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over:hover:not(:disabled){border-color:var(--arena-accent);color:#fff;background:#d4ff002e}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over--limit{border-color:var(--arena-accent);color:#fff;box-shadow:0 0 0 1px #d4ff0047, 0 0 18px var(--arena-accent-glow);background:#d4ff0038;animation:1.35s ease-in-out infinite web-skill-start-over-limit-pulse}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over--limit .web-skill-start-over-icon{color:var(--arena-accent)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over:focus-visible{outline:2px solid var(--arena-accent);outline-offset:2px}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over:disabled{opacity:.45;cursor:not-allowed}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over-icon{flex-shrink:0;width:1.125rem;height:1.125rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over-label{text-align:left;min-width:0;line-height:1.2}@keyframes web-skill-start-over-spin{to{transform:rotate(360deg)}}@keyframes web-skill-start-over-limit-pulse{0%,to{box-shadow:0 0 0 1px #d4ff0038,0 0 14px #d4ff0047}50%{box-shadow:0 0 0 1px #d4ff008c, 0 0 28px var(--arena-accent-glow)}}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-start-over--busy .web-skill-start-over-icon{animation:.85s linear infinite web-skill-start-over-spin}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-modality{color:var(--arena-text-dim);max-width:52rem;margin:.5rem 0 0;font-size:.6875rem;line-height:1.5}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-row{box-sizing:border-box;grid-template-columns:minmax(0,9fr) minmax(0,1fr);align-items:stretch;gap:1rem;width:100%;min-width:0;margin:.875rem 0 0;padding:0 1.5rem;display:grid}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match{border:1px solid var(--arena-border-card);background:#080808d9;min-width:0;margin:0;padding:.65rem .875rem;position:relative}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-finalize-cta{box-sizing:border-box;letter-spacing:.06em;text-transform:uppercase;text-align:center;-webkit-hyphens:auto;hyphens:auto;overflow-wrap:break-word;justify-content:center;align-self:start;align-items:center;width:100%;min-width:0;height:60px;padding:.35rem;font-size:.5625rem;line-height:1.25;display:inline-flex}@keyframes web-skill-finalize-neon-pulse{0%,to{box-shadow:0 0 12px #d4ff008c,0 0 28px #d4ff0059,inset 0 0 0 1px #ffffff1f}50%{box-shadow:0 0 22px #e8ff4df2,0 0 48px #d4ff0080,inset 0 0 0 1px #ffffff38}}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-finalize-cta--pulse{z-index:0;animation:2s ease-in-out infinite web-skill-finalize-neon-pulse;position:relative}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-finalize-cta--pulse:hover:not(:disabled){filter:brightness(1.06)}@media (prefers-reduced-motion:reduce){.arena-dashboard.arena-dashboard--web-skill-run .web-skill-finalize-cta--pulse{animation:none;box-shadow:0 0 16px #d4ff00a6,0 0 32px #d4ff0066}}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match--streaming,.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match--awaiting-chat{opacity:.72}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.35rem 1rem;margin-bottom:.45rem;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-head-left{align-items:center;gap:.35rem;min-width:0;display:inline-flex;position:relative}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-title{letter-spacing:.14em;text-transform:uppercase;color:var(--arena-accent);margin:0;font-size:.5625rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-info-btn{width:1.125rem;height:1.125rem;color:var(--arena-accent);cursor:pointer;background:#d4ff000f;border:1px solid #d4ff0059;border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;margin:0;padding:0;line-height:1;transition:border-color .15s,background .15s,color .15s;display:inline-flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-info-btn:hover,.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-info-btn:focus-visible{border-color:var(--arena-accent);color:#f5ffd4;background:#d4ff001f;outline:none}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-info-icon{font-size:.5625rem;font-weight:700;line-height:1;transform:translateY(-.5px)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-track-stack{min-width:0;margin-top:.15rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-track{background:#ffffff0f;border-radius:2px;height:1.125rem;position:relative;overflow:hidden}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-fill-threshold{z-index:0;background:linear-gradient(90deg,#ff985838,#ff783061);border-radius:0 2px 2px 0;max-width:100%;transition:width .35s;position:absolute;top:0;bottom:0;left:0}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-fill{z-index:1;background:linear-gradient(90deg, #d4ff006b, var(--arena-accent));border-radius:0 2px 2px 0;min-width:0;max-width:100%;transition:width .35s;position:absolute;top:0;bottom:0;left:0}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-track-label{z-index:2;box-sizing:border-box;min-width:2.35rem;font-family:var(--font-arena-jb), ui-monospace, monospace;letter-spacing:.03em;color:var(--arena-accent);pointer-events:none;background:#080808e0;border-left:1px solid #ffffff1a;border-radius:0 2px 2px 0;justify-content:center;align-items:center;padding:0 .35rem;font-size:.625rem;font-weight:700;display:flex;position:absolute;top:0;bottom:0;right:0}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-track-label--empty{color:#ebebeb8c;font-weight:600}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-verify-cta{letter-spacing:.1em;text-transform:uppercase;padding:.4rem .75rem;font-size:.5625rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-verify-cta--head{text-align:center;white-space:normal;-webkit-hyphens:auto;hyphens:auto;flex-shrink:1;min-width:0;max-width:min(100%,14rem);margin-left:auto;line-height:1.25}@keyframes web-skill-verify-neon-pulse{0%,to{box-shadow:0 0 10px #ffd2408c,0 0 22px #ffbe0059,inset 0 0 0 1px #fff8c840}50%{box-shadow:0 0 18px #ffeb78f2,0 0 38px #ffc8288c,inset 0 0 0 1px #ffffdc73}}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-verify-cta--head.web-skill-verify-cta--pulse{color:#141000;background:linear-gradient(165deg,#fff2a8 0%,#ffd319 42%,#e8a800 100%);border-color:#ffdc50f2;font-weight:700;animation:2.2s ease-in-out infinite web-skill-verify-neon-pulse}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-verify-cta--head.web-skill-verify-cta--pulse:hover:not(:disabled){color:#0a0a00;background:linear-gradient(165deg,#fff8c4 0%,#ffe033 45%,#f0b800 100%);border-color:#fff59a}@media (prefers-reduced-motion:reduce){.arena-dashboard.arena-dashboard--web-skill-run .web-skill-verify-cta--head.web-skill-verify-cta--pulse{animation:none;box-shadow:0 0 14px #ffd750a6,0 0 28px #ffbe0066}}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-dual{flex:1;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;min-height:0;padding:.75rem 1.5rem 1.5rem;display:grid}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-panel{border:1px solid var(--arena-border-card);background:#0a0a0abf;flex-direction:column;min-height:0;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-panel--target{border-color:var(--arena-accent-border);box-shadow:0 0 0 1px var(--arena-accent-soft)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-panel-head{border-bottom:1px solid var(--arena-border);background:#060606e6;flex-shrink:0;padding:.75rem 1rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-panel-title{letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text);margin:0;font-size:.5625rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-panel-hint{letter-spacing:.08em;color:#555;margin-top:.35rem;font-size:.5rem;display:block}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-surface{-webkit-overflow-scrolling:touch;flex:1;min-height:0;padding:1rem;overflow:auto}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-surface--agent{background:repeating-linear-gradient(-12deg,#ffffff05,#ffffff05 1px,#0000 1px 10px);justify-content:center;align-items:center;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-agent-frame{background:#0a0a0a;border:0;width:100%;height:100%;min-height:100%}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-surface--goal .web-skill-target-frame{background:#0a0a0a}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-surface-placeholder{text-align:center;color:#555;max-width:18rem;margin:0;font-size:.75rem;line-height:1.55}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-agent-loading{flex-direction:column;justify-content:center;align-items:center;gap:1rem;width:100%;min-height:8rem;padding:1.5rem 1rem;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-agent-spinner{border:2px solid var(--arena-border);border-top-color:var(--arena-accent);border-radius:50%;width:2rem;height:2rem;animation:.75s linear infinite web-skill-agent-spin}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-agent-loading-text{letter-spacing:.1em;text-transform:uppercase;color:var(--arena-text-dim);margin:0;font-size:.6875rem}@keyframes web-skill-agent-spin{to{transform:rotate(360deg)}}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-surface--goal{background:var(--arena-bg-elevated)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-goal-card{border:1px solid var(--arena-border);background:#0c0c0c;border-radius:2px;max-width:16rem;margin:0 auto;padding:1rem 1.125rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-goal-label{letter-spacing:.14em;color:var(--arena-accent);margin-bottom:.5rem;font-size:.5rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-goal-title{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;color:var(--arena-text);margin-bottom:.5rem;font-size:1rem;font-weight:600}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-goal-copy{color:var(--arena-text-dim);margin:0 0 1rem;font-size:.75rem;line-height:1.5}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-goal-cta{letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--arena-accent-border);background:var(--arena-accent-soft);color:var(--arena-accent);cursor:default;pointer-events:none;padding:.5rem .875rem;font-family:inherit;font-size:.5625rem;display:inline-block}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-aside{background:var(--arena-bg-rail);border-left:1px solid var(--arena-border);flex-direction:column;flex:1;min-height:0;padding:0;display:flex;overflow:hidden}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-main{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex;overflow:hidden}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-conversation{background:var(--arena-bg-rail);flex-direction:row;flex:1;align-items:stretch;min-height:0;display:flex;overflow:hidden}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-header{border-bottom:1px solid var(--arena-border);background:var(--arena-bg-rail);flex-shrink:0;padding:1rem 1.25rem .85rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-agent-spec{border:1px solid var(--arena-border);background:#060606;border-radius:2px;padding:.55rem .65rem .6rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-agent-spec-head{border-bottom:1px solid #1a1a1a;flex-direction:row;justify-content:space-between;align-items:baseline;gap:.5rem;margin-bottom:.45rem;padding-bottom:.4rem;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-agent-spec-tag{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.1em;color:#6a6a6a;font-size:.5rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-agent-spec-stamp{letter-spacing:.18em;color:var(--arena-accent);font-size:.5625rem;font-weight:600}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-agent-spec-grid{grid-template-columns:max-content minmax(0,1fr);align-items:baseline;gap:.25rem .65rem;margin:0;display:grid}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-agent-spec-grid dt{max-width:11rem;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.1em;color:#5c5c5c;margin:0;font-size:.5rem;font-weight:500;line-height:1.35}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-agent-spec-grid dd{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.04em;color:var(--arena-text);text-align:right;word-break:break-word;margin:0;font-size:.5625rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-log{-webkit-overflow-scrolling:touch;background:var(--arena-bg-rail);flex-direction:column;flex:1;gap:.75rem;min-width:0;min-height:0;padding:1rem 1.25rem 1rem .75rem;display:flex;overflow-y:auto}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-log-meter{box-sizing:border-box;border-right:1px solid var(--arena-border);background:var(--arena-bg-rail);flex-direction:column;flex-shrink:0;align-items:center;width:1rem;min-height:0;padding:.65rem 0 .75rem .15rem;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-empty{color:#555;margin:auto 0;font-size:.6875rem;line-height:1.5}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble{border:1px solid var(--arena-border);background:#0a0a0a;padding:.625rem .75rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble--agent{border-color:var(--arena-accent-border);background:#d4ff000f}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble--system{background:#e24b4a14;border-color:#e24b4a59}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble--system .web-skill-chat-bubble-meta{color:var(--arena-negative)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble-meta{letter-spacing:.14em;color:var(--arena-accent);margin-bottom:.35rem;font-size:.5rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble--with-latency{padding-right:2.85rem;position:relative}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble-latency-badge{z-index:1;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.06em;color:#d4ff0080;pointer-events:none;font-size:.5rem;font-weight:500;line-height:1.2;position:absolute;top:.5rem;right:.55rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-latency-note{background:0 0;border:none;align-self:flex-end;margin:.1rem 0 .4rem;padding:0}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-latency-note-ms{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.06em;color:#d4ff006b;font-size:.5rem;font-weight:500;line-height:1.2}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bubble-body{color:var(--arena-text);white-space:pre-wrap;word-break:break-word;font-size:.8125rem;line-height:1.45}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-form{border-top:1px solid var(--arena-border);background:var(--arena-bg-rail);flex-direction:column;flex-shrink:0;gap:.5rem;padding:1rem 1.25rem 1.25rem;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-label{letter-spacing:.12em;color:#666;text-transform:uppercase;font-size:.5rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-meter{flex-direction:column;gap:.4rem;margin-bottom:.15rem;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-chars{text-align:right;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.05em;color:#555;margin:0;font-size:.6875rem;font-weight:600}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-meter--warn .web-skill-chat-chars{color:var(--arena-accent)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-meter--at .web-skill-chat-chars{color:var(--arena-negative)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-limit-note{color:#8a8a8a;margin:0 0 .15rem;font-size:.6875rem;line-height:1.35}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-turns-line-wrap{margin-bottom:.05rem}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-messages-line{text-align:right;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.05em;color:#555;margin:0;font-size:.6875rem;font-weight:600}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-turns-line-wrap.web-skill-chat-meter--warn .web-skill-chat-messages-line{color:var(--arena-accent)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-turns-line-wrap.web-skill-chat-meter--at .web-skill-chat-messages-line{color:var(--arena-negative)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bar-track{background:#0f0f0f;border:1px solid #222;height:8px;overflow:hidden}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bar-fill{background:linear-gradient(90deg, #c4ee00, var(--arena-accent));min-width:0;height:100%;transition:width .1s ease-out;box-shadow:0 0 10px #d4ff0059}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-meter--warn .web-skill-chat-bar-fill{box-shadow:0 0 14px #d4ff008c}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-meter--at .web-skill-chat-bar-track{border-color:#e24b4a66}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-meter--at .web-skill-chat-bar-fill{background:linear-gradient(90deg, #e8ff4d, var(--arena-accent));box-shadow:0 0 12px #d4ff0080,0 0 18px #e24b4a33}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bar-track--vertical{flex-direction:column;flex:1 1 0;justify-content:flex-start;width:8px;min-height:0;display:flex}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-bar-fill--vertical{background:linear-gradient(to top, #c4ee00, var(--arena-accent));width:100%;min-height:0;transition:height .1s ease-out;box-shadow:0 0 10px #d4ff0059}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-log-meter.web-skill-chat-meter--warn .web-skill-chat-bar-fill--vertical{box-shadow:0 0 14px #d4ff008c}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-log-meter.web-skill-chat-meter--at .web-skill-chat-bar-track--vertical{border-color:#e24b4a66}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-log-meter.web-skill-chat-meter--at .web-skill-chat-bar-fill--vertical{background:linear-gradient(to top, #e8ff4d, var(--arena-accent));box-shadow:0 0 12px #d4ff0080,0 0 18px #e24b4a33}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-input{resize:vertical;border:1px solid var(--arena-border);width:100%;min-height:4.5rem;color:var(--arena-text);background:#080808;outline:none;padding:.625rem .75rem;font-family:inherit;font-size:.8125rem;line-height:1.45}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-input:focus{border-color:var(--arena-accent-border);box-shadow:0 0 0 1px var(--arena-accent-soft)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-input:disabled,.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-send:disabled{cursor:wait;opacity:.65}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-send{align-self:flex-end;margin-top:.25rem}@media (max-width:1024px){.arena-dashboard.arena-dashboard--web-skill-run .main{grid-template-rows:minmax(0,1fr) auto;grid-template-columns:1fr;overflow-y:auto}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-stage{border-right:none;border-bottom:1px solid var(--arena-border);min-height:min(70dvh,32rem)}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-chat-aside{border-left:none;border-top:1px solid var(--arena-border);max-height:24rem}}@media (max-width:640px){.arena-dashboard.arena-dashboard--web-skill-run .web-skill-dual,.arena-dashboard.arena-dashboard--web-skill-run .web-skill-match-row{grid-template-columns:1fr}.arena-dashboard.arena-dashboard--web-skill-run .web-skill-finalize-cta{letter-spacing:.1em;height:60px;padding:.35rem 1rem;font-size:.5625rem}}.arena-dashboard.arena-dashboard--interactive-threejs-run .interactive-threejs-surface{min-height:280px;padding:0;overflow:hidden}.arena-dashboard.arena-dashboard--interactive-threejs-run .interactive-threejs-canvas-wrap{background:#0a0a0a;flex:1;width:100%;height:100%;min-height:280px;position:relative}.arena-dashboard.arena-dashboard--interactive-threejs-run .interactive-threejs-canvas{min-height:280px;display:block;width:100%!important;height:100%!important}.registration-modal-backdrop{z-index:3000;background:#000000c7;justify-content:center;align-items:center;padding:1rem;display:flex;position:fixed;inset:0}.registration-modal{border:1px solid var(--arena-border-card);background:linear-gradient(#0d0d0d 0%,#0a0a0a 100%);width:100%;max-width:26rem;padding:1.5rem 1.375rem;box-shadow:0 24px 64px #000000a6}.registration-modal-title{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;letter-spacing:-.02em;color:var(--arena-text);margin:0 0 .75rem;font-size:1.125rem;font-weight:700}.registration-modal-body{color:var(--arena-text-dim);margin:0 0 1.25rem;font-size:.8125rem;line-height:1.55}.registration-modal-actions{flex-wrap:wrap;justify-content:flex-end;gap:.75rem;display:flex}.registration-modal .btn,.registration-gate-fallback .btn{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;cursor:pointer;text-transform:uppercase;border:1px solid #0000;justify-content:center;align-items:center;padding:12px 20px;font-size:.6875rem;font-weight:700;transition:all .15s;display:inline-flex}.registration-gate-fallback a.btn{text-decoration:none}.registration-modal .btn-primary,.registration-gate-fallback .btn-primary{background:var(--arena-accent);color:#000;min-width:8rem}.registration-modal .btn-primary:hover:not(:disabled),.registration-gate-fallback .btn-primary:hover:not(:disabled){box-shadow:0 0 20px var(--arena-accent-glow);background:#e8ff4d}.registration-modal .btn-ghost{color:var(--arena-text-dim);background:0 0;border-color:#2a2a2a}.registration-modal .btn-ghost:hover:not(:disabled){color:var(--arena-text);border-color:#444}.registration-modal .btn:disabled{opacity:.55;cursor:not-allowed}.challenge-rules-modal{max-width:34rem}.challenge-rules-tag{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.16em;color:var(--arena-accent);text-transform:uppercase;margin-bottom:.625rem;font-size:.5625rem}.challenge-rules-list{color:var(--arena-text-dim);gap:.625rem;margin:0 0 1.25rem;padding-left:1.1rem;font-size:.75rem;line-height:1.5;display:grid}.challenge-rules-list li::marker{color:var(--arena-accent)}.challenge-rules-limits{grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem;margin-bottom:1.25rem;display:grid}.challenge-rules-limits div{background:#ffffff05;border:1px solid #1f1f1f;padding:.75rem}.challenge-rules-limits span,.challenge-rules-limits b{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;display:block}.challenge-rules-limits span{color:#555;letter-spacing:.12em;text-transform:uppercase;margin-bottom:.35rem;font-size:.5rem}.challenge-rules-limits b{color:var(--arena-text);font-size:.875rem}@media (max-width:520px){.challenge-rules-limits{grid-template-columns:repeat(2,minmax(0,1fr))}}.registration-gate-fallback{--arena-accent:var(--constraint-accent);--arena-accent-glow:#d4ff0073;--arena-text:var(--constraint-text);--arena-text-dim:var(--constraint-text-dim);--arena-text-faint:var(--constraint-text-faint);--arena-border-card:var(--constraint-border-strong);background:var(--constraint-bg,#050505);flex-direction:column;justify-content:center;align-items:center;gap:1.25rem;min-height:50vh;padding:2rem 1.25rem;display:flex}.registration-gate-fallback-msg{text-align:center;max-width:28rem;color:var(--arena-text-dim);margin:0;font-size:.875rem;line-height:1.5}.registration-gate-fallback.run-gate{min-height:100vh}.run-gate-card{border:1px solid var(--arena-border-card);background:linear-gradient(#0d0d0d 0%,#0a0a0a 100%);flex-direction:column;gap:.875rem;width:100%;max-width:32rem;padding:1.75rem 1.5rem;display:flex;box-shadow:0 24px 64px #000000a6}.run-gate-tag{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.18em;text-transform:uppercase;color:var(--arena-accent);font-size:.6875rem;font-weight:700}.run-gate-title{font-family:var(--font-arena-display), "Helvetica Neue", Arial, system-ui, sans-serif;letter-spacing:-.02em;color:var(--arena-text);margin:0;font-size:1.375rem;font-weight:700}.run-gate-body{color:var(--arena-text-dim);margin:0;font-size:.875rem;line-height:1.55}.run-gate-meta{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--arena-text-faint);flex-wrap:wrap;gap:.25rem;margin:0;font-size:.6875rem;display:flex}.run-gate-actions{flex-wrap:wrap;gap:.75rem;margin-top:.25rem;display:flex}.run-gate-card .btn{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;cursor:pointer;text-transform:uppercase;border:1px solid #0000;justify-content:center;align-items:center;padding:12px 20px;font-size:.6875rem;font-weight:700;transition:all .15s;display:inline-flex}.run-gate-card .btn-primary{color:#000;background:#e8ff4d;min-width:8rem;box-shadow:0 0 #e8ff4d00}.run-gate-card .btn-primary:hover:not(:disabled){background:#f1ff7a;box-shadow:0 0 28px #e8ff4d8c,0 0 0 1px #e8ff4d8c}.run-gate-card .btn-ghost{color:var(--arena-text-dim);background:0 0;border-color:#2a2a2a}.run-gate-card .btn-ghost:hover:not(:disabled){color:var(--arena-text);border-color:#444}.run-gate-card .btn:disabled{opacity:.55;cursor:not-allowed}.registration-modal-backdrop .run-gate-card--modal{cursor:default;margin:0}.admin-runs-toolbar{flex-wrap:wrap;row-gap:.75rem}.admin-runs-table{table-layout:fixed;min-width:60rem}.admin-runs-table th,.admin-runs-table td{vertical-align:middle}.admin-runs-table col.col-user{width:16%}.admin-runs-table col.col-challenge{width:auto}.admin-runs-table col.col-status{width:9rem}.admin-runs-table col.col-judge,.admin-runs-table col.col-attempts{width:6rem}.admin-runs-table col.col-started{width:11rem}.admin-runs-table col.col-duration{width:7rem}.admin-runs-table col.col-actions{width:8rem}.admin-runs-table td.admin-runs-cell--user,.admin-runs-table td.admin-runs-cell--judge,.admin-runs-table td.admin-runs-cell--attempts,.admin-runs-table td.admin-runs-cell--started,.admin-runs-table td.admin-runs-cell--duration,.admin-runs-table td.admin-runs-cell--status{white-space:nowrap}.admin-runs-table td.admin-runs-cell--user{text-overflow:ellipsis;overflow:hidden}.admin-runs-challenge-cell{flex-direction:column;gap:.125rem;min-width:0;display:flex}.admin-runs-challenge-slug{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.04em;color:var(--arena-text);text-transform:lowercase;white-space:nowrap;text-overflow:ellipsis;font-size:.75rem;font-weight:600;overflow:hidden}.admin-runs-challenge-name{color:var(--arena-text-faint);white-space:normal;word-break:break-word;font-size:.6875rem;line-height:1.35}.admin-run-status{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-dim);background:#0e0e0e;border:1px solid #2a2a2a;border-radius:2px;padding:.18rem .55rem;font-size:.65rem;font-weight:700;display:inline-block}.admin-run-status--in_progress{color:var(--arena-accent);background:#d4ff0014;border-color:#d4ff0073}.admin-run-status--completed{color:#95f1bb;background:#66e29814;border-color:#66e29873}.admin-run-status--abandoned,.admin-run-status--disqualified,.admin-run-status--failed{color:#ff8e8e;background:#ff5c5c14;border-color:#ff5c5c73}.admin-runs-detail{flex-direction:column;gap:1.25rem;display:flex}.admin-run-meta-grid{background:#0a0a0a;border:1px solid #1c1c1c;border-radius:2px;grid-template-columns:repeat(auto-fill,minmax(11rem,1fr));gap:.75rem 1rem;margin:0;padding:.875rem 1rem;display:grid}.admin-run-meta-grid>div{flex-direction:column;gap:.18rem;min-width:0;display:flex}.admin-run-meta-grid dt{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--arena-text-faint);font-size:.625rem}.admin-run-meta-grid dd{color:var(--arena-text);flex-direction:column;gap:.1rem;margin:0;font-size:.8125rem;display:flex}.admin-run-meta-sub{color:var(--arena-text-faint);font-size:.6875rem}.admin-run-no-surface{background:#0b0b0b;border:1px dashed #2a2a2a;border-radius:2px;padding:1rem 1.125rem}.admin-run-no-surface-title{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--arena-text);margin:0 0 .35rem;font-size:.75rem}.admin-run-no-surface-body{color:var(--arena-text-dim);margin:0;font-size:.8125rem;line-height:1.5}.admin-run-diff-summary{background:linear-gradient(#0d0d0d 0%,#0a0a0a 100%);border:1px solid #1c1c1c;border-radius:2px;grid-template-columns:repeat(auto-fill,minmax(8.5rem,1fr));gap:.5rem;padding:.625rem .75rem;display:grid}.admin-run-diff-summary-cell{background:#060606;border:1px solid #161616;flex-direction:column;gap:.15rem;padding:.4rem .55rem;display:flex}.admin-run-diff-summary-cell dt{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text-faint);font-size:.6rem}.admin-run-diff-summary-cell dd{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;color:var(--arena-text);margin:0;font-size:1rem;font-weight:700}.admin-run-diff-tabs{background:#0a0a0a;border:1px solid #1c1c1c;align-self:flex-start;display:inline-flex}.admin-run-diff-tab{cursor:pointer;font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--arena-text-faint);background:0 0;border:0;padding:.45rem .95rem;font-size:.7rem;font-weight:700;transition:color .15s,background .15s}.admin-run-diff-tab:hover{color:var(--arena-text)}.admin-run-diff-tab--active{color:var(--arena-accent);background:#d4ff0014}.admin-run-diff-legend{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.12em;text-transform:uppercase;flex-wrap:wrap;gap:.45rem;font-size:.625rem;display:flex}.admin-run-diff-legend-item{color:var(--arena-text-dim);background:#0a0a0a;border:1px solid #1f1f1f;align-items:center;gap:.4rem;padding:.18rem .55rem;display:inline-flex}.admin-run-diff-legend-item:before{content:"";opacity:.4;background:currentColor;border:1px solid;width:.55rem;height:.55rem}.admin-run-diff-legend-item--equal{color:#6b7a6b}.admin-run-diff-legend-item--removed{color:#ff8e8e}.admin-run-diff-legend-item--added{color:#95f1bb}.admin-run-diff-shell{background:#050505;border:1px solid #1c1c1c;border-radius:2px;grid-template-columns:1fr 1fr;gap:0;display:grid;overflow:hidden}.admin-run-diff-pane{border-left:1px solid #181818;flex-direction:column;min-width:0;display:flex}.admin-run-diff-pane:first-child{border-left:0}.admin-run-diff-pane-head{background:#0a0a0a;border-bottom:1px solid #181818;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.35rem .75rem;padding:.5rem .75rem;display:flex}.admin-run-diff-pane-head-start{align-items:center;gap:.35rem;min-width:0;display:inline-flex}.admin-run-diff-copy-btn{color:var(--arena-text-faint);cursor:pointer;background:#121212;border:1px solid #2a2a2a;border-radius:2px;flex-shrink:0;justify-content:center;align-items:center;margin:0;padding:.2rem;line-height:0;transition:color .12s,border-color .12s,background .12s;display:inline-flex}.admin-run-diff-copy-btn:hover{color:var(--constraint-accent,#d4ff00);background:#161616;border-color:#3d3d3d}.admin-run-diff-copy-btn:focus-visible{outline:2px solid var(--constraint-accent,#d4ff00);outline-offset:2px}.admin-run-diff-pane-title{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--arena-text);font-size:.7rem;font-weight:700}.admin-run-diff-pane-caption{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;letter-spacing:.1em;color:var(--arena-text-faint);font-size:.625rem}.admin-run-diff-code{font-family:var(--font-arena-jb), ui-monospace, "JetBrains Mono", Menlo, monospace;color:var(--arena-text);background:0 0;flex-direction:column;min-height:18rem;max-height:36rem;margin:0;padding:.35rem 0;font-size:.75rem;line-height:1.45;display:flex;overflow:auto}.admin-run-diff-line{white-space:pre;border-left:2px solid #0000;grid-template-columns:2.75rem 1fr;align-items:flex-start;padding:.05rem 0;display:grid}.admin-run-diff-gutter{text-align:right;color:var(--arena-text-faint);-webkit-user-select:none;user-select:none;border-right:1px solid #141414;padding:0 .55rem;font-size:.6875rem}.admin-run-diff-content{white-space:pre-wrap;word-break:break-word;padding:0 .7rem}.admin-run-diff-line--equal{background:0 0}.admin-run-diff-line--removed{color:#ffd1d1;background:#ff5c5c1a;border-left-color:#ff5c5c99}.admin-run-diff-line--added{color:#d4f7e4;background:#66e29817;border-left-color:#66e2988c}.admin-run-diff-line--modified{background:#d4ff0012;border-left-color:#d4ff008c}.admin-run-diff-line--placeholder{color:#0000;background:repeating-linear-gradient(45deg,#2828282e 0 4px,#0000 4px 8px)}@media (max-width:960px){.admin-run-diff-shell{grid-template-columns:1fr}.admin-run-diff-pane{border-top:1px solid #181818;border-left:0}.admin-run-diff-pane:first-child{border-top:0}.admin-run-diff-code{max-height:24rem}}.arena-dashboard .challenge-track{flex-direction:column;gap:.75rem;margin:0 0 1.5rem;padding:0;list-style:none;display:flex}.arena-dashboard .challenge-track-row{border:1px solid var(--arena-border-card);background:linear-gradient(#101010 0%,#0b0b0b 100%);flex-wrap:wrap;align-items:stretch;gap:1rem 1.25rem;padding:1rem 1.125rem;display:flex}.arena-dashboard .challenge-track-row--locked{opacity:.88}.arena-dashboard .challenge-track-row--done{border-color:color-mix(in srgb, var(--arena-accent) 22%, var(--arena-border-card))}.arena-dashboard .challenge-track-main{flex:1;gap:.875rem;min-width:0;display:flex}.arena-dashboard .challenge-track-pos{font-family:var(--font-arena-jb), ui-monospace, monospace;color:var(--arena-text-muted);letter-spacing:.06em;min-width:3.25rem;padding-top:.2rem;font-size:.75rem}.arena-dashboard .challenge-track-body{flex:1;min-width:0}.arena-dashboard .challenge-track-head{flex-wrap:wrap;align-items:center;gap:.5rem .75rem;margin-bottom:.35rem;display:flex}.arena-dashboard .challenge-track-name{letter-spacing:.02em;font-size:.9375rem;font-weight:600}.arena-dashboard .challenge-track-status{letter-spacing:.14em;border:1px solid var(--arena-border);padding:2px 6px;font-size:.5625rem}.arena-dashboard .challenge-track-status.open{color:var(--arena-accent);border-color:color-mix(in srgb, var(--arena-accent) 35%, transparent)}.arena-dashboard .challenge-track-status.locked{color:var(--arena-text-muted)}.arena-dashboard .challenge-track-pill{letter-spacing:.12em;border-radius:2px;padding:2px 8px;font-size:.5625rem}.arena-dashboard .challenge-track-pill--done{background:color-mix(in srgb, var(--arena-accent) 18%, transparent);color:var(--arena-accent)}.arena-dashboard .challenge-track-pill--locked{color:var(--arena-text-muted);background:#1a1a1a}.arena-dashboard .challenge-track-desc{color:var(--arena-text-muted);margin:0 0 .5rem;font-size:.8125rem;line-height:1.45}.arena-dashboard .challenge-track-lock-msg{color:#9a9a6a;margin:0 0 .35rem;font-size:.75rem}.arena-dashboard .challenge-track-meta{color:#666;flex-wrap:wrap;gap:.5rem 1rem;font-size:.6875rem;display:flex}.arena-dashboard .challenge-track-action{align-items:center;display:flex}.arena-dashboard .btn-track{white-space:nowrap;min-width:7rem}.arena-dashboard.arena-challenges-index .main.main-single{-webkit-overflow-scrolling:touch;grid-template-columns:1fr;max-width:52rem;margin-inline:auto;overflow-y:auto}.arena-dashboard.arena-challenges-index .challenges-index-main{padding-top:2rem;padding-bottom:2.5rem}.arena-dashboard .challenges-index-title{font-family:var(--font-arena-display), system-ui, sans-serif;letter-spacing:-.02em;margin:.25rem 0 .5rem;font-size:1.75rem;font-weight:700}.arena-dashboard .challenges-index-lead{color:var(--arena-text-muted);max-width:42rem;margin:0 0 1.25rem;font-size:.875rem;line-height:1.5}.arena-dashboard .challenges-index-edition{text-transform:uppercase;letter-spacing:.1em;color:var(--arena-text-muted);margin-bottom:1rem;font-size:.8125rem}.arena-dashboard.arena-leaderboard-page .main.main-single{-webkit-overflow-scrolling:touch;grid-template-columns:1fr;max-width:64rem;margin-inline:auto;overflow-y:auto}.arena-dashboard.arena-leaderboard-page .leaderboard-page-main{padding-top:2rem;padding-bottom:2.5rem}.arena-dashboard .leaderboard-page-hero{justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.25rem;display:flex}.arena-dashboard .leaderboard-page-title{font-family:var(--font-arena-display), system-ui, sans-serif;letter-spacing:-.02em;margin:.25rem 0 .5rem;font-size:1.875rem;font-weight:700}.arena-dashboard .leaderboard-page-lead{color:var(--arena-text-muted);max-width:42rem;margin:0;font-size:.875rem;line-height:1.5}.arena-dashboard .leaderboard-page-badge{border:1px solid color-mix(in srgb, var(--arena-accent) 38%, transparent);color:var(--arena-accent);font-family:var(--font-arena-jb), ui-monospace, monospace;letter-spacing:.14em;flex-shrink:0;padding:.5rem .75rem;font-size:.625rem;box-shadow:0 0 16px #d4ff0014}.arena-dashboard .leaderboard-page-edition{text-transform:uppercase;letter-spacing:.1em;color:var(--arena-text-muted);margin-bottom:1rem;font-size:.8125rem}.arena-dashboard .leaderboard-table{border:1px solid var(--arena-border-card);background:linear-gradient(#0d0d0d 0%,#090909 100%)}.arena-dashboard .leaderboard-table-row{color:var(--arena-text-dim);border-bottom:1px solid #151515;grid-template-columns:5rem minmax(0,1fr) 6rem 7rem 6rem;align-items:center;gap:1rem;padding:.875rem 1rem;font-size:.8125rem;display:grid}.arena-dashboard .leaderboard-table-row:last-child{border-bottom:none}.arena-dashboard .leaderboard-table-head{font-family:var(--font-arena-jb), ui-monospace, monospace;letter-spacing:.14em;text-transform:uppercase;color:#555;background:#ffffff04;font-size:.5625rem}.arena-dashboard .leaderboard-table-row--you{background:color-mix(in srgb, var(--arena-accent) 7%, transparent)}.arena-dashboard .leaderboard-rank,.arena-dashboard .leaderboard-score{font-family:var(--font-arena-jb), ui-monospace, monospace;color:var(--arena-text)}.arena-dashboard .leaderboard-competitor{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--arena-text);font-weight:700;overflow:hidden}.arena-dashboard .leaderboard-empty{text-align:center;color:var(--arena-text-muted);padding:1.5rem;font-size:.8125rem}@media (max-width:720px){.arena-dashboard .leaderboard-page-hero{display:block}.arena-dashboard .leaderboard-page-badge{margin-top:1rem;display:inline-flex}.arena-dashboard .leaderboard-table-row{grid-template-columns:4rem minmax(0,1fr) 4.5rem}.arena-dashboard .leaderboard-table-row span:nth-child(4),.arena-dashboard .leaderboard-table-row span:nth-child(5){display:none}}.arena-dashboard .challenges-progress-card{border:1px solid color-mix(in srgb, var(--arena-accent) 28%, var(--arena-border-card));background:radial-gradient(circle at 92% 18%, color-mix(in srgb, var(--arena-accent) 16%, transparent), transparent 32%), linear-gradient(135deg, #10110b 0%, #080808 66%);margin-bottom:1.25rem;padding:1rem;position:relative;overflow:hidden;box-shadow:0 0 24px #d4ff0014}.arena-dashboard .challenges-progress-card:before{content:"";pointer-events:none;opacity:.35;background-image:linear-gradient(#ffffff09 1px,#0000 1px);background-size:100% 10px;position:absolute;inset:0}.arena-dashboard .challenges-progress-card>*{position:relative}.arena-dashboard .challenges-progress-copy,.arena-dashboard .challenges-progress-meta{justify-content:space-between;align-items:flex-end;gap:1rem;display:flex}.arena-dashboard .challenges-progress-kicker{font-family:var(--font-arena-jb), ui-monospace, monospace;letter-spacing:.16em;color:var(--arena-accent);margin-bottom:.25rem;font-size:.5625rem}.arena-dashboard .challenges-progress-title{font-family:var(--font-arena-display), system-ui, sans-serif;letter-spacing:-.02em;font-size:1.125rem;font-weight:700}.arena-dashboard .challenges-progress-percent{font-family:var(--font-arena-jb), ui-monospace, monospace;color:var(--arena-accent);text-shadow:0 0 18px var(--arena-accent-glow);font-size:clamp(1.6rem,4.5vw,2.75rem);font-weight:800;line-height:.9}.arena-dashboard .challenges-progress-track{background:#171717;border:1px solid #262626;height:.5rem;margin:1rem 0 .625rem;overflow:hidden}.arena-dashboard .challenges-progress-fill{background:linear-gradient(90deg, var(--arena-accent) 0%, #f0ff7a 100%);height:100%;box-shadow:0 0 18px var(--arena-accent-glow);transition:width .35s}.arena-dashboard .challenges-progress-meta{font-family:var(--font-arena-jb), ui-monospace, monospace;color:var(--arena-text-muted);letter-spacing:.04em;align-items:center;font-size:.6875rem}.arena-dashboard .challenges-progress-meta span:first-child{color:var(--arena-text)}@media (max-width:1100px){.arena-dashboard.arena-challenges-index .main.main-single{overflow-y:visible}}
