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.08);--shadow-floating: 0 18px 42px rgba(15, 23, 42, .2);--focus-ring: 0 0 0 3px color-mix(in srgb, var(--color-focus) 72%, transparent);--tap-target: 44px;--motion-fast: .14s;--motion-standard: .18s;--ease-standard: cubic-bezier(.2, 0, 0, 1);--z-navigation: 10;--z-overlay: 40}:root{font-family:var(--font-sans);background:var(--color-surface-page);color:var(--color-text-strong);font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(90deg,rgba(37,99,235,.06),transparent 34%),linear-gradient(180deg,var(--color-surface) 0%,#f5f9fc 48%,#eef6f2 100%)}button,input,textarea,select{font:inherit}button{border:1px solid var(--color-border-strong);background:var(--color-surface);color:var(--color-text-strong);min-height:var(--tap-target);padding:0 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var(--ease-standard)}button:hover{border-color:#8fb0d8;background:var(--color-surface-subtle)}button:not(:disabled):active{transform:translateY(1px)}button:disabled{cursor:not-allowed;opacity:.55}button.primary{background:var(--color-action);border-color:var(--color-action);color:var(--color-action-contrast)}button.primary:hover{background:var(--color-action-hover)}button.active{background:var(--color-selected);border-color:#7aa7e6;color:var(--color-selected-text)}button.text-button{border:0;background:transparent;min-height:auto;color:var(--color-selected-text);padding:0}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:none;box-shadow:var(--focus-ring)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2rem,5vw,4.7rem);line-height:.95;letter-spacing:0;margin-bottom:20px}h2{font-size:1.25rem;margin-bottom:12px}h3{font-size:1rem;margin:20px 0 10px}p{color:var(--color-text);line-height:1.6}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;border-bottom:1px solid #e1e8f0;padding:10px 8px}th{color:#56657c;font-size:.78rem;text-transform:uppercase}input,textarea,select{width:100%;border:1px solid var(--color-border-strong);border-radius:var(--radius-control);background:var(--color-surface);color:var(--color-text-strong);min-height:var(--tap-target);padding:10px 12px}input[aria-invalid=true]{border-color:#fb7185;background:#fff8f9}textarea{min-height:86px;resize:vertical}label{display:grid;gap:7px;color:var(--color-text);font-size:.9rem;font-weight:700}label.toggle-row{grid-template-columns:auto 1fr;align-items:center;min-height:42px}label.toggle-row input{width:18px;min-height:18px}.password-field{position:relative;display:block}.password-field input{padding-right:52px}.password-toggle{position:absolute;top:50%;right:6px;min-width:38px;min-height:34px;padding:0;transform:translateY(-50%)}.app-shell{min-height:100vh}.skip-link{position:fixed;top:var(--space-2);left:var(--space-2);z-index:calc(var(--z-overlay) + 1);transform:translateY(-160%);border-radius:var(--radius-control);padding:var(--space-3) var(--space-4);background:var(--color-text-strong);color:var(--color-action-contrast);font-weight:800;text-decoration:none;transition:transform var(--motion-fast) var(--ease-standard)}.skip-link:focus{transform:translateY(0);box-shadow:var(--focus-ring)}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 32px;border-bottom:1px solid color-mix(in srgb,var(--color-border) 84%,transparent);background:color-mix(in srgb,var(--color-surface) 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rgba(255,255,255,.16);background:#ffffff14;border-radius:8px;padding:9px 10px}.hud-stat svg{flex:0 0 auto;color:#bfdbfe}.hud-stat span{min-width:0;display:grid;gap:1px}.hud-stat small{color:#cbd5e1;font-size:.68rem;font-weight:900;letter-spacing:0;text-transform:uppercase}.hud-stat strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hud-warmth{min-width:140px;background:#ecfdf3;color:#14532d;border-color:#86efac}.hud-warmth svg,.hud-warmth small{color:#15803d}.hud-warmth.low{background:#fff1f2;color:#9f1239;border-color:#fecdd3}.hud-warmth.low svg,.hud-warmth.low small{color:#be123c}.arena-canvas{min-height:310px;width:100%;overflow:hidden;border:1px solid #bfd0df;border-radius:8px;background:#dff1ff}.arena-frame{position:relative;min-width:0}.arena-loading .arena-canvas{display:grid;place-items:center;align-content:center;gap:8px;color:#172033;background:linear-gradient(135deg,#eaf6ff,#f7fbff)}.arena-loading span{color:#56657c;font-size:.9rem;font-weight:800}.arena-error{position:absolute;inset:16px;display:grid;place-items:center;padding:18px;border:1px solid #fecdd3;border-radius:8px;background:#fff1f2f0;color:#9f1239;font-weight:900;text-align:center;z-index:8}.arena-error strong,.arena-error span{display:block}.arena-error button{margin-top:var(--space-2);border-color:currentColor;background:var(--color-surface);color:var(--color-danger)}.character-debug-overlay{position:absolute;right:12px;top:12px;z-index:6;display:grid;gap:4px;min-width:176px;border:1px solid rgba(226,232,240,.76);border-radius:8px;background:#0f172ad1;color:#e5f0ff;padding:10px 12px;font-size:.78rem;font-weight:800;box-shadow:0 16px 32px #0f172a42;pointer-events:none}.character-debug-overlay strong{color:#fff;font-size:.82rem}.fps-view .arena-canvas{border-color:#8ca6bd;box-shadow:inset 0 0 0 1px #17203314,0 18px 50px 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rgba(255,255,255,.74);background:#172033b8;color:#fff;border-radius:8px;padding:8px 10px;font-size:.82rem;font-weight:900;letter-spacing:.04em;text-transform:uppercase}.arena-minimap{position:absolute;right:16px;top:16px;z-index:4;width:clamp(178px,15vw,245px);border:1px solid rgba(255,255,255,.72);border-radius:8px;background:#1d160eb3;box-shadow:0 14px 32px #291b0d42;padding:8px;pointer-events:none}.minimap-title{color:#fff;font-size:.72rem;font-weight:900;letter-spacing:.08em;margin-bottom:5px;text-transform:uppercase}.arena-minimap svg{display:block;width:100%;height:auto;border-radius:6px;overflow:hidden}.minimap-sand{fill:#d7ad64}.minimap-route{fill:#68d5e047}.minimap-wall{fill:#4d331dd1}.minimap-wood{fill:#563a23eb}.minimap-blue-base{fill:#38bdf838;stroke:#7dd3fcd9;stroke-width:.8}.minimap-red-base{fill:#fb718533;stroke:#fda4afd9;stroke-width:.8}.minimap-capture{fill:#facc15;stroke:#ffffffb8;stroke-width:.5}.minimap-item{fill:#ecfeff;stroke:#0891b2;stroke-width:.45}.minimap-label{fill:#ffffffeb;font-size:4px;font-weight:900;text-anchor:middle;paint-order:stroke;stroke:#281a0ce6;stroke-width:1.8px}.minimap-player path{fill:#fff;stroke:#172033;stroke-width:.8}.control-lock{position:absolute;left:50%;bottom:18px;transform:translate(-50%);border:1px solid rgba(255,255,255,.74);background:#172033c7;color:#fff;border-radius:8px;padding:10px 13px;font-size:.86rem;font-weight:900;box-shadow:0 12px 28px #10213b38;pointer-events:none;white-space:nowrap}.touch-controls{position:absolute;left:16px;right:16px;bottom:16px;z-index:5;display:none;align-items:end;justify-content:space-between;gap:18px;pointer-events:none}.touch-controls button{pointer-events:auto;min-height:54px;min-width:54px;border-color:#ffffffb3;background:#172033c7;color:#fff;box-shadow:0 12px 26px #10213b3d;touch-action:none;-webkit-user-select:none;user-select:none}.touch-dpad{display:grid;grid-template-columns:repeat(3,54px);grid-template-rows:repeat(3,54px);gap:8px}.touch-up{grid-column:2;grid-row:1}.touch-left{grid-column:1;grid-row:2}.touch-down{grid-column:2;grid-row:3}.touch-right{grid-column:3;grid-row:2}.touch-fire{min-width:86px;background:#146c43;border-color:#bbf7d0}.auth-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(320px,440px);gap:44px;align-items:start;padding:64px clamp(24px,7vw,92px)}.character-lab{padding:30px clamp(18px,4vw,52px) 46px}.character-lab h1{font-size:clamp(2.2rem,4vw,3.6rem);margin-bottom:8px}.character-lab-grid{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px;align-items:stretch}.character-lab-controls{align-self:start;display:grid;gap:14px}.character-lab-arena .arena-canvas{min-height:min(68vh,680px)}.lab-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.lab-metrics span{display:grid;gap:2px;min-height:68px;align-content:center;border:1px solid #d9e4ef;border-radius:8px;background:#f8fbff;color:#64748b;padding:10px;font-size:.76rem;font-weight:900;text-transform:uppercase}.lab-metrics strong{color:#172033;font-size:1.5rem;line-height:1}.panel,.metric{background:color-mix(in srgb,var(--color-surface) 96%,transparent);border:1px solid var(--color-border);border-radius:var(--radius-panel);box-shadow:var(--shadow-panel)}.panel{padding:22px}.form-panel{display:grid;gap:16px}.workspace{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:calc(100vh - 72px)}.sidebar{border-right:1px solid var(--color-border);background:var(--color-surface);padding:24px 18px;display:flex;flex-direction:column;gap:10px}.sidebar button{justify-content:flex-start}.teacher-id{display:grid;gap:4px;padding:0 4px 18px}.teacher-id span,small{color:#66758a;font-size:.82rem}.main-panel{padding:30px;overflow:hidden}.section-heading{display:flex;align-items:start;justify-content:space-between;gap:20px;margin-bottom:24px}.section-heading h1{font-size:clamp(2rem,4vw,3.1rem);margin-bottom:8px}.section-heading.compact h2{margin-bottom:4px}.dashboard-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.metric{padding:22px}.metric span{color:#64748b;font-weight:700}.metric strong{display:block;font-size:2.2rem;margin-top:8px}.wide-panel{grid-column:span 2}.two-column{display:grid;grid-template-columns:minmax(300px,.85fr) minmax(0,1.4fr);gap:18px;align-items:start}.session-grid{grid-template-columns:minmax(290px,.7fr) minmax(0,1.5fr)}.preset-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.preset-grid button{min-height:82px;display:grid;align-content:center;justify-items:start;text-align:left;white-space:normal}.preset-grid small{line-height:1.35}.choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.question-form{display:grid;gap:14px}.import-builder{display:grid;gap:12px;margin:16px 0 22px;border:1px solid #b9dfc5;background:linear-gradient(180deg,#f4fbf6,#fff);border-radius:8px;padding:16px}.import-builder p{margin-bottom:0}.bulk-textarea{min-height:170px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;line-height:1.45}.import-preview{display:grid;gap:10px;border:1px solid #d5e0ea;background:#fff;border-radius:8px;padding:12px}.import-preview-list{display:grid;gap:8px}.import-preview-item{display:grid;gap:2px;border:1px solid #eef2f7;border-radius:8px;padding:9px 10px;background:#f8fbfe}.import-preview-item span{color:#172033;font-weight:800}.question-list,.plain-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:10px}.question-list li,.plain-list li{border:1px solid #e1e8f0;border-radius:8px;padding:12px;display:flex;justify-content:space-between;gap:16px}.join-code{display:flex;align-items:center;justify-content:space-between;background:#eef8f1;border:1px solid #b9dfc5;border-radius:8px;padding:12px 14px;margin-bottom:12px}.join-code span{color:#40634b;font-weight:800}.join-code strong{font-size:2rem;letter-spacing:.14em}.join-link{margin-bottom:14px}.live-session .arena-canvas{min-height:280px;margin:16px 0}.live-rail{display:flex;gap:10px;margin-top:22px;overflow-x:auto}.session-chip{min-width:130px;justify-content:space-between}.session-chip span{letter-spacing:.12em}.live-first-grid{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px;align-items:start}.session-setup-minimized{position:sticky;top:92px}.setup-lock-note{margin-bottom:0;color:#334155;font-size:.92rem;font-weight:800}.session-setup-minimized label,.session-setup-minimized .preset-grid,.session-setup-minimized .toggle-row,.session-setup-minimized .error-text,.session-setup-minimized button.primary{display:none}.status-pill{min-height:36px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;padding:0 12px;border:1px solid #cbd5e1;background:#fff;color:#172033;font-weight:900}.status-active{color:#14532d;background:#ecfdf3;border-color:#86efac}.status-waiting{color:#174a8b;background:#eaf3ff;border-color:#93c5fd}.status-ended{color:#475569;background:#f1f5f9;border-color:#cbd5e1}.live-summary,.team-score-row,.report-summary-grid{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:12px 0}.live-summary span:not(.status-pill){border:1px solid #dbe5ee;background:#f8fbfe;border-radius:8px;padding:8px 10px;font-weight:800;color:#334155}.mini-copy{margin:0 0 12px;color:#334155;font-size:.92rem}.event-feed{margin-top:16px}.event-list{display:grid;gap:8px}.event-item{display:grid;grid-template-columns:88px minmax(0,1fr) auto;align-items:center;gap:10px;border:1px solid #dbe5ee;border-left:5px solid #64748b;border-radius:8px;background:#fff;padding:10px 12px}.event-item strong{color:#334155;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}.event-item span{min-width:0;color:#172033;font-weight:800}.event-item small{white-space:nowrap}.event-answer,.event-respawn{border-left-color:#16a34a}.event-tag,.event-elimination{border-left-color:#dc2626}.event-start,.event-end,.event-timer{border-left-color:#2563eb}.modal-backdrop{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:24px;background:#0f172a57}.confirm-modal{width:min(520px,100%)}.game-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;padding:18px 30px 24px;min-height:calc(100vh - 72px)}.game-stage{position:relative;display:grid;grid-template-rows:minmax(560px,calc(100vh - 258px)) auto auto;gap:12px;min-width:0}.game-stage .arena-canvas{height:100%;min-height:560px}.game-stage .arena-frame{height:100%}.student-side{display:flex;flex-direction:column;gap:14px;min-width:0}.arena-objective-strip{position:absolute;left:16px;right:16px;top:16px;display:flex;flex-wrap:wrap;gap:8px;z-index:2;pointer-events:none}.arena-objective-strip 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