:root{--bg-dark: #111319;--panel-bg: rgba(22, 25, 35, .82);--panel-border: rgba(255, 255, 255, .08);--panel-border-hover: rgba(255, 255, 255, .2);--pastel-sage: #98d8aa;--pastel-coral: #f4978e;--pastel-gold: #ffd166;--pastel-lavender: #b8c0ff;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", monospace}*{box-sizing:border-box;margin:0;padding:0;user-select:none;-webkit-user-select:none}html,body{width:100vw;height:100vh;overflow:hidden;background-color:var(--bg-dark);font-family:var(--font-sans);color:var(--text-primary)}#app{position:relative;width:100%;height:100%;overflow:hidden}#webcam,#opponent-video{position:absolute;top:0;left:0;width:1px;height:1px;opacity:0;pointer-events:none}#output-canvas{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.game-header{position:absolute;top:0;left:0;right:0;height:68px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;background:#111319bf;border-bottom:1px solid var(--panel-border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:20}.brand-group{display:flex;align-items:center;gap:12px}.brand-badge{width:36px;height:36px;border-radius:10px;background:#ffffff0d;border:1px solid var(--panel-border);display:flex;align-items:center;justify-content:center;color:var(--pastel-coral)}.icon-brand{width:20px;height:20px}.brand-info{display:flex;flex-direction:column}.brand-name{font-size:15px;font-weight:700;letter-spacing:-.3px}.brand-tag{font-size:10px;color:var(--pastel-sage);font-weight:600}.hud-center{display:flex;align-items:center;gap:12px}.score-card{display:flex;align-items:baseline;gap:8px;background:var(--panel-bg);border:1px solid var(--panel-border);padding:5px 16px;border-radius:20px}.score-label{font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.score-value{font-size:18px;font-weight:800;font-family:var(--font-mono);color:var(--text-primary)}.hud-actions{display:flex;align-items:center;gap:8px}.action-btn{display:flex;align-items:center;gap:6px;background:var(--panel-bg);border:1px solid var(--panel-border);padding:6px 12px;border-radius:10px;color:var(--text-primary);font-size:11px;font-weight:600;cursor:pointer;transition:all .18s ease}.action-btn:hover{background:#ffffff14;border-color:var(--panel-border-hover)}.action-btn.icon-only{padding:6px 9px}.action-btn.menu-btn{background:#b8c0ff1f;border-color:#b8c0ff4d;color:var(--pastel-lavender)}.btn-icon{width:14px;height:14px}.fps-pill{font-family:var(--font-mono);font-size:11px;color:var(--pastel-sage);font-weight:700;padding:5px 9px;background:#ffffff0a;border:1px solid var(--panel-border);border-radius:10px}.game-footer{position:absolute;bottom:0;left:0;right:0;height:36px;display:flex;align-items:center;justify-content:center;background:#111319bf;border-top:1px solid var(--panel-border);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);z-index:20}.footer-tips{display:flex;align-items:center;gap:12px;font-size:11px;color:var(--text-secondary)}.tip-item{display:flex;align-items:center;gap:6px}.tip-icon{width:12px;height:12px;color:var(--pastel-gold)}.footer-tips kbd{background:#ffffff14;border:1px solid var(--panel-border);border-radius:4px;padding:1px 5px;font-family:var(--font-mono);font-size:9px;color:var(--text-primary)}.sep{color:#ffffff26}.modal-backdrop{position:absolute;top:0;left:0;width:100%;height:100%;background:#0a0c10e0;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);display:flex;align-items:center;justify-content:center;z-index:100;transition:opacity .25s ease}.modal-backdrop.hidden{opacity:0;pointer-events:none}.modal-card{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:24px;padding:32px;box-shadow:0 20px 48px #0000008c;display:flex;flex-direction:column;align-items:center;gap:16px}.select-mode-card{max-width:580px;width:94%}.modal-badge{width:48px;height:48px;border-radius:14px;background:#f4978e1f;border:1px solid rgba(244,151,142,.25);display:flex;align-items:center;justify-content:center;color:var(--pastel-coral)}.modal-icon{width:24px;height:24px}.modal-title{font-size:24px;font-weight:800;letter-spacing:-.4px}.modal-desc{font-size:13px;color:var(--text-secondary);line-height:1.5;text-align:center}.mode-selection-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;width:100%;margin-top:4px}.mode-card{background:#ffffff08;border:1px solid var(--panel-border);border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:10px;transition:all .2s ease}.mode-card:hover{background:#ffffff0f;border-color:var(--panel-border-hover);transform:translateY(-2px)}.mode-card.duel-card{border-color:#b8c0ff40}.mode-card-header{display:flex;align-items:center;gap:10px}.mode-icon-circle{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.mode-icon-circle.pastel-sage{background:#98d8aa26;color:var(--pastel-sage)}.mode-icon-circle.pastel-lavender{background:#b8c0ff26;color:var(--pastel-lavender)}.mode-titles h3{font-size:14px;font-weight:700}.mode-badge-pill{display:inline-block;font-size:9px;font-weight:700;padding:2px 6px;border-radius:6px;background:#98d8aa26;color:var(--pastel-sage);margin-top:2px}.mode-badge-pill.lavender{background:#b8c0ff26;color:var(--pastel-lavender)}.mode-card-desc{font-size:11px;color:var(--text-secondary);line-height:1.4;flex-grow:1}.mode-play-btn{width:100%;padding:9px;border-radius:10px;background:var(--pastel-sage);border:none;color:#11141a;font-size:12px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:opacity .18s ease,transform .15s ease}.mode-play-btn:hover{opacity:.92;transform:translateY(-1px)}.mode-play-btn.lavender{background:var(--pastel-lavender)}.ai-difficulty-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;margin-top:4px}.diff-btn{padding:8px 4px;border-radius:10px;border:1px solid var(--panel-border);font-size:11px;font-weight:700;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px;transition:all .18s ease}.diff-icon{width:15px;height:15px}.diff-btn.easy{background:#98d8aa1f;border-color:#98d8aa59;color:var(--pastel-sage)}.diff-btn.easy:hover{background:var(--pastel-sage);color:#11141a;transform:translateY(-1px)}.diff-btn.medium{background:#ffd1661f;border-color:#ffd16659;color:var(--pastel-gold)}.diff-btn.medium:hover{background:var(--pastel-gold);color:#11141a;transform:translateY(-1px)}.diff-btn.impossible{background:#f4978e1f;border-color:#f4978e59;color:var(--pastel-coral)}.diff-btn.impossible:hover{background:var(--pastel-coral);color:#11141a;transform:translateY(-1px)}.privacy-note{font-size:10px;color:var(--text-muted)}.matchmaking-card{max-width:440px;width:90%;text-align:center}.radar-container{position:relative;width:110px;height:110px;border-radius:50%;background:#b8c0ff0d;border:1px solid rgba(184,192,255,.2);display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:6px}.radar-circle{position:absolute;border-radius:50%;border:1px solid rgba(184,192,255,.25);animation:radarPulse 2.4s infinite ease-out}.radar-circle.circle-1{width:40px;height:40px}.radar-circle.circle-2{width:75px;height:75px;animation-delay:.8s}.radar-circle.circle-3{width:105px;height:105px;animation-delay:1.6s}.radar-sweep{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:50%;background:conic-gradient(from 0deg,rgba(184,192,255,.35) 0deg,transparent 65deg);animation:radarSweep 2.2s linear infinite}.radar-center-icon{width:28px;height:28px;color:var(--pastel-lavender);z-index:5}@keyframes radarSweep{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes radarPulse{0%{transform:scale(.6);opacity:.8}to{transform:scale(1.15);opacity:.1}}.matchmaking-title{font-size:20px;font-weight:800}.matchmaking-desc{font-size:12px;color:var(--text-secondary);line-height:1.4}.room-code-box{width:100%;background:#00000040;border:1px solid var(--panel-border);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:8px}.room-code-label{font-size:10px;font-weight:600;text-transform:uppercase;color:var(--text-muted)}.room-pin-display{font-size:24px;font-weight:800;font-family:var(--font-mono);letter-spacing:2px;color:var(--pastel-gold)}.join-room-row{display:flex;gap:8px;margin-top:4px}.join-room-row input{flex:1;background:#ffffff0d;border:1px solid var(--panel-border);border-radius:8px;padding:8px 12px;color:#fff;font-family:var(--font-mono);font-size:12px;outline:none}.join-room-row input:focus{border-color:var(--pastel-lavender)}.btn-join-pin{padding:8px 14px;border-radius:8px;background:var(--pastel-lavender);border:none;color:#11141a;font-size:11px;font-weight:700;cursor:pointer}.cancel-match-btn{width:100%}.round-result-card{max-width:420px;width:90%;text-align:center}.gameover-badge{width:56px;height:56px;border-radius:16px;background:#ffd16624;border:1px solid rgba(255,209,102,.3);display:flex;align-items:center;justify-content:center;color:var(--pastel-gold)}.trophy-icon{width:28px;height:28px}.gameover-title{font-size:24px;font-weight:800;letter-spacing:-.4px}.gameover-sub{font-size:12px;color:var(--text-secondary)}.gameover-stats-box{display:flex;align-items:center;justify-content:space-around;width:100%;background:#00000040;border:1px solid var(--panel-border);border-radius:14px;padding:16px}.stat-col{display:flex;flex-direction:column;gap:4px}.stat-lbl{font-size:10px;font-weight:600;text-transform:uppercase;color:var(--text-muted)}.stat-num{font-size:24px;font-weight:800;font-family:var(--font-mono);color:var(--text-primary)}.stat-num.gold{color:var(--pastel-gold)}.stat-divider{width:1px;height:36px;background:var(--panel-border)}.gameover-actions{display:flex;gap:10px;width:100%}.primary-gameover-btn{flex:1;padding:12px;border-radius:12px;background:var(--pastel-coral);border:none;color:#11141a;font-size:13px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px}.secondary-gameover-btn{flex:1;padding:12px;border-radius:12px;background:#ffffff0d;border:1px solid var(--panel-border);color:var(--text-primary);font-size:13px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px}.auto-restart-note{font-size:11px;color:var(--text-muted);margin-top:4px}