@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700;900&family=JetBrains+Mono:wght@400;700&display=swap";:root{--bg-deep: #050508;--bg-base: #0a0a12;--bg-card: #111122;--bg-card-hover: #161630;--neon-cyan: #00f5ff;--neon-pink: #ff2d78;--neon-purple: #9d4edd;--neon-yellow: #ffe600;--neon-green: #39ff14;--text-primary: #f0f0ff;--text-secondary: #8888aa;--text-dim: #44445a;--font-sans: "Outfit", system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;--lane-1: #00f5ff;--lane-2: #ff2d78;--lane-3: #9d4edd;--lane-4: #ffe600;--timing-perfect: #00f5ff;--timing-great: #39ff14;--timing-good: #ffe600;--timing-miss: #ff2d78;--difficulty-easy: #39ff14;--difficulty-medium: #00d4ff;--difficulty-hard: #ff9f1c;--difficulty-expert: #ff2d78;--difficulty-extreme: #9d4edd;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--shadow-neon-cyan: 0 0 20px rgba(0, 245, 255, .4);--shadow-neon-pink: 0 0 20px rgba(255, 45, 120, .4);--shadow-neon-purple: 0 0 20px rgba(157, 78, 221, .4);--transition-fast: .12s ease;--transition-mid: .25s cubic-bezier(.34, 1.56, .64, 1);--transition-slow: .4s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{position:fixed;inset:0;width:100%;height:100%;overflow:hidden;background:var(--bg-deep);color:var(--text-primary);font-family:var(--font-sans);font-size:16px;-webkit-font-smoothing:antialiased;touch-action:none;pointer-events:auto}#app{position:relative;width:100%;height:100%;overflow:hidden;background:var(--bg-deep);user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}#game-canvas{position:absolute;inset:0;display:block;touch-action:none;z-index:2}#ui-layer{position:absolute;inset:0;pointer-events:none;z-index:10}.rx-transition-overlay{position:absolute;inset:0;z-index:9999;pointer-events:none;opacity:0;transform:translate(0) scale(1);will-change:opacity,transform;background:radial-gradient(120% 90% at 50% 50%,color-mix(in srgb,var(--neon-cyan) 8%,transparent) 0%,transparent 70%),color-mix(in srgb,var(--bg-deep) 84%,transparent)}.rx-transition-overlay[data-style=slide-left],.rx-transition-overlay[data-style=slide-right]{background:linear-gradient(90deg,color-mix(in srgb,var(--bg-deep) 92%,transparent),color-mix(in srgb,var(--bg-base) 78%,transparent),color-mix(in srgb,var(--bg-deep) 92%,transparent))}.rx-transition-overlay[data-style=zoom]{background:radial-gradient(110% 75% at 50% 50%,color-mix(in srgb,var(--neon-purple) 10%,transparent),transparent 72%),color-mix(in srgb,var(--bg-deep) 86%,transparent)}.screen{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:all;animation:screenIn .4s ease forwards}@keyframes screenIn{0%{opacity:0;transform:scale(.97) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.screen.fade-out{animation:screenOut .3s ease forwards}@keyframes screenOut{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.02)}}.glass-card{background:#111122b3;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius-lg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:1rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;cursor:pointer;transition:var(--transition-mid);position:relative;overflow:hidden}.btn:after{content:"";position:absolute;inset:0;background:#fff0;transition:background .2s ease}.btn:hover:after{background:#ffffff14}.btn:active{transform:scale(.96)}.btn-primary{background:linear-gradient(135deg,var(--neon-cyan),var(--neon-purple));color:var(--bg-deep);box-shadow:0 0 30px #00f5ff4d}.btn-primary:hover{box-shadow:0 0 50px #00f5ff80;transform:translateY(-2px)}.btn-secondary{background:#ffffff0d;border:1px solid rgba(255,255,255,.12);color:var(--text-primary)}.btn-secondary:hover{border-color:var(--neon-cyan);color:var(--neon-cyan);box-shadow:var(--shadow-neon-cyan)}.btn-danger{background:#ff2d7826;border:1px solid rgba(255,45,120,.4);color:var(--neon-pink)}.btn-danger:hover{background:#ff2d7840;box-shadow:var(--shadow-neon-pink)}.text-neon-cyan{color:var(--neon-cyan)}.text-neon-pink{color:var(--neon-pink)}.text-neon-purple{color:var(--neon-purple)}.text-neon-yellow{color:var(--neon-yellow)}.text-secondary{color:var(--text-secondary)}.text-mono{font-family:var(--font-mono)}#loading-screen{background:var(--bg-deep);z-index:1000}.loading-logo{font-size:4rem;font-weight:900;letter-spacing:-.02em;background:linear-gradient(135deg,var(--neon-cyan),var(--neon-pink),var(--neon-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:40px}.loading-bar-wrap{width:300px;height:4px;background:#ffffff14;border-radius:2px;overflow:hidden}.loading-bar-fill{height:100%;background:linear-gradient(90deg,var(--neon-cyan),var(--neon-purple));border-radius:2px;transition:width .3s ease;box-shadow:0 0 10px var(--neon-cyan)}.loading-sub{margin-top:16px;font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;color:var(--text-secondary)}#menu-screen{background:radial-gradient(ellipse at 30% 50%,rgba(0,245,255,.05) 0%,transparent 60%),radial-gradient(ellipse at 70% 20%,rgba(157,78,221,.07) 0%,transparent 50%),radial-gradient(ellipse at 60% 80%,rgba(255,45,120,.05) 0%,transparent 50%),var(--bg-deep)}.menu-logo{font-size:clamp(3rem,8vw,6rem);font-weight:900;letter-spacing:-.03em;background:linear-gradient(135deg,var(--neon-cyan) 0%,var(--neon-purple) 50%,var(--neon-pink) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center;line-height:1;filter:drop-shadow(0 0 40px rgba(0,245,255,.3))}.menu-tagline{font-size:.9rem;letter-spacing:.35em;text-transform:uppercase;color:var(--text-secondary);margin-top:12px;margin-bottom:60px;text-align:center}.menu-buttons{display:flex;flex-direction:column;gap:14px;width:280px}.menu-particles{position:absolute;inset:0;pointer-events:none;overflow:hidden}#song-select-screen{background:var(--bg-deep);padding:40px 20px;overflow:hidden}.song-select-header{position:relative;z-index:10;pointer-events:none}.song-select-header h1{font-family:var(--font-sans);letter-spacing:.15em;text-transform:uppercase;color:var(--text-primary);margin:0}.song-list{display:flex;flex-direction:row;align-items:center;gap:32px;width:100vw;max-width:none;overflow-x:auto;overflow-y:hidden;padding:40px calc(50vw - 120px);scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none;touch-action:pan-x}.song-list::-webkit-scrollbar{display:none}.song-card{display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;flex:0 0 240px;height:320px;padding:20px;cursor:pointer;border:1px solid rgba(255,255,255,.05);border-radius:var(--radius-md);background:var(--bg-card);transition:var(--transition-mid);position:relative;overflow:hidden;scroll-snap-align:center;transform:scale(.9);opacity:.6}.song-card:before{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.95) 0%,rgba(0,0,0,.4) 60%,transparent 100%);z-index:1;pointer-events:none}.song-card-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0;transition:transform .4s ease}.song-card:hover .song-card-bg{transform:scale(1.05)}.song-card.selected{transform:scale(1.1);opacity:1;border-color:var(--accent-color, var(--neon-cyan));box-shadow:0 0 30px #000c,0 0 15px var(--accent-color);z-index:10}.song-card.selected{border-color:var(--accent-color, var(--neon-cyan));box-shadow:0 0 20px #00f5ff26}.song-card.selected:before{width:5px;box-shadow:0 0 10px var(--accent-color, var(--neon-cyan))}.song-card .song-icon,.song-card .song-info,.song-card .song-card-badges{position:relative;z-index:2;width:100%}.song-card .song-info{margin-top:auto}.song-title{font-size:1.25rem;font-weight:700;color:var(--text-primary);letter-spacing:.02em;margin-bottom:6px;line-height:1.2}.song-artist{font-size:.85rem;font-weight:400;color:var(--text-secondary);display:block}.song-bpm{font-family:var(--font-mono);font-size:.75rem;color:var(--neon-yellow);margin-top:8px;font-weight:700}.song-difficulty-badge{display:inline-flex;align-items:center;justify-content:center;padding:4px 8px;border-radius:4px;font-family:var(--font-mono);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-top:12px}.diff-easy{background:#39ff1426;color:var(--neon-green)}.diff-normal{background:#00f5ff26;color:var(--neon-cyan)}.diff-hard{background:#ff2d7826;color:var(--neon-pink)}.difficulty-selector{display:flex;gap:10px;margin-top:24px}.diff-btn{padding:8px 20px;border-radius:20px;border:1px solid rgba(255,255,255,.1);background:transparent;color:var(--text-secondary);font-family:var(--font-sans);font-size:.85rem;font-weight:600;cursor:pointer;transition:var(--transition-fast);letter-spacing:.05em}.diff-btn:hover{color:var(--text-primary);border-color:#fff3}.diff-btn.active-easy{background:#39ff1426;border-color:var(--neon-green);color:var(--neon-green)}.diff-btn.active-normal{background:#00f5ff26;border-color:var(--neon-cyan);color:var(--neon-cyan)}.diff-btn.active-hard{background:#ff2d7826;border-color:var(--neon-pink);color:var(--neon-pink)}.song-select-actions{display:flex;gap:12px;margin-top:28px}.song-select-premium{background:radial-gradient(1100px 600px at 12% -8%,rgba(0,180,255,.16),transparent 60%),radial-gradient(950px 520px at 92% -20%,rgba(255,112,218,.12),transparent 62%),linear-gradient(180deg,#03060f,#060a16 46%,#070b18);overflow:hidden}.song-select-premium .ss-bg-layer{position:absolute;inset:-8%;background-size:cover;background-position:center;filter:blur(26px) saturate(1.1);opacity:.24;transform:scale(1.08);transition:background-image .26s ease,opacity .26s ease;pointer-events:none}.song-select-premium .ss-bg-layer.is-front{opacity:.34;filter:blur(20px) saturate(1.15)}.song-select-premium .ss-bg-vignette,.song-select-premium .ss-bg-noise{position:absolute;inset:0;pointer-events:none}.song-select-premium .ss-bg-vignette{background:radial-gradient(ellipse at center,#0000 32%,#0000008f)}.song-select-premium .ss-bg-noise{opacity:.08;background-image:radial-gradient(circle at 25% 25%,rgba(255,255,255,.32) 1px,transparent 1px);background-size:3px 3px}.song-select-premium .ss-content{position:relative;z-index:2;width:100%;height:100%;padding:18px}.song-select-premium .ss-shell{width:100%;height:100%;border-radius:18px;border:1px solid rgba(88,212,255,.18);background:linear-gradient(135deg,#050c1ecc,#070a18b8);box-shadow:0 14px 42px #00000061,inset 0 1px #ffffff12;display:flex;flex-direction:column;overflow:hidden}.song-select-premium .ss-header{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 18px;border-bottom:1px solid rgba(88,212,255,.14);background:linear-gradient(180deg,#071022bd,#0710226b)}.song-select-premium .ss-brand-logo{font-size:clamp(1.6rem,2.6vw,2.1rem);font-weight:900;letter-spacing:.06em;text-transform:uppercase}.song-select-premium .ss-brand-subtitle{margin-top:2px;font-size:.72rem;color:#8aa0c8;letter-spacing:.2em;text-transform:uppercase}.song-select-premium .ss-header-controls{display:flex;align-items:center;gap:10px}.song-select-premium .ss-source-tabs{display:inline-flex;align-items:center;gap:6px;padding:4px;border-radius:999px;background:#ffffff0a;border:1px solid rgba(255,255,255,.08)}.song-select-premium .ss-tab-btn{border:0;background:transparent;color:#a6b4d0;font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;border-radius:999px;padding:8px 12px;cursor:pointer;transition:background .15s ease,color .15s ease,box-shadow .15s ease}.song-select-premium .ss-tab-btn.is-active{color:#eaf6ff;background:linear-gradient(135deg,#44d2ff42,#7d56ff38);box-shadow:0 0 14px #44d2ff47}.song-select-premium .ss-style-badge{color:var(--neon-cyan);border:1px solid rgba(68,210,255,.4);border-radius:999px;padding:6px 10px;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:#44d2ff1a}.song-select-premium .ss-icon-btn{border:1px solid color-mix(in srgb,var(--text-primary) 24%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--text-primary) 10%,transparent),color-mix(in srgb,var(--text-primary) 4%,transparent));color:var(--text-primary);border-radius:10px;padding:8px 10px;min-width:42px;cursor:pointer;font-weight:800;letter-spacing:.04em;transition:border-color .16s ease,box-shadow .16s ease,transform .14s ease}.song-select-premium .ss-icon-btn:hover{border-color:color-mix(in srgb,var(--neon-cyan) 45%,transparent);box-shadow:0 0 14px color-mix(in srgb,var(--neon-cyan) 30%,transparent)}.song-select-premium .ss-icon-btn:active{transform:scale(.97)}.song-select-premium .ss-main-grid{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:minmax(340px,1.14fr) minmax(360px,1fr);gap:16px;padding:16px}.song-select-premium .ss-hero-panel,.song-select-premium .ss-browser-panel{border:1px solid rgba(120,145,185,.2);border-radius:16px;background:linear-gradient(150deg,#070c1ceb,#060a18db);box-shadow:inset 0 1px #ffffff0a;min-height:0}.song-select-premium .ss-hero-panel{padding:14px;overflow:auto}.song-select-premium .ss-empty-state{height:100%;min-height:220px;display:grid;place-items:center;color:var(--text-secondary);font-size:.95rem}.song-select-premium .ss-browser-panel{display:flex;flex-direction:column;overflow:hidden}.song-select-premium .ss-browser-top{flex:0 0 auto;padding:10px;border-bottom:1px solid rgba(120,145,185,.2)}.song-select-premium .ss-difficulty-pills{display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap}.song-select-premium .ss-diff-btn{border:1px solid rgba(255,255,255,.16);background:#ffffff08;color:var(--text-primary);border-radius:999px;padding:7px 14px;font-size:.76rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;cursor:pointer}.song-select-premium .ss-diff-btn.is-active{color:var(--text-primary);border-color:var(--diff-color, var(--neon-cyan));box-shadow:0 0 14px color-mix(in oklab,var(--diff-color, var(--neon-cyan)) 42%,transparent);background:color-mix(in oklab,var(--diff-color, var(--neon-cyan)) 20%,rgba(255,255,255,.03))}.song-select-premium .ss-search-row{display:grid;grid-template-columns:1fr auto;gap:8px}.song-select-premium .ss-search-wrap,.song-select-premium .ss-sort-wrap{border:1px solid color-mix(in srgb,var(--text-primary) 18%,transparent);border-radius:12px;background:linear-gradient(180deg,color-mix(in srgb,var(--text-primary) 6%,transparent),color-mix(in srgb,var(--text-primary) 2%,transparent));box-shadow:inset 0 1px color-mix(in srgb,var(--text-primary) 9%,transparent)}.song-select-premium .ss-search-wrap{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;padding:0 10px}.song-select-premium .ss-search-icon{color:var(--text-secondary);font-weight:800}.song-select-premium #song-search,.song-select-premium #yt-link-input,.song-select-premium #song-sort{width:100%;border:0;outline:0;color:var(--text-primary);background:transparent;font-size:.9rem;padding:10px 0}.song-select-premium #song-sort{appearance:none;-webkit-appearance:none}.song-select-premium #song-sort option{color:#0a1022;background:#f1f5ff}.song-select-premium .ss-stream-input-row #yt-link-input{border:1px solid rgba(255,255,255,.18);border-radius:12px;background:color-mix(in srgb,var(--text-primary) 4%,transparent);padding:10px 12px;min-height:42px}.song-select-premium .ss-btn-inline{min-width:74px}.song-select-premium #song-search::placeholder,.song-select-premium #yt-link-input::placeholder{color:var(--text-secondary)}.song-select-premium .ss-clear-search{border:0;background:transparent;color:var(--text-secondary);font-size:.86rem;cursor:pointer}.song-select-premium .ss-sort-wrap{display:inline-flex;align-items:center;gap:8px;padding:0 10px;position:relative}.song-select-premium .ss-sort-wrap>span{color:var(--text-secondary);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.song-select-premium .ss-sort-mobile-trigger{display:inline-flex;align-items:center;justify-content:space-between;gap:8px;min-width:166px;min-height:36px;border:0;background:transparent;color:var(--text-primary);font:inherit;font-size:.86rem;font-weight:700;cursor:pointer}.song-select-premium .ss-sort-mobile-caret{color:var(--text-secondary);font-size:.9rem;transform:translateY(-1px)}.song-select-premium #song-sort{display:none}.song-select-premium .ss-sort-mobile-menu{display:block;position:fixed;top:132px;right:26px;width:min(260px,calc(100vw - 24px));z-index:56;border-radius:14px;border:1px solid color-mix(in srgb,var(--neon-cyan) 28%,transparent);background:linear-gradient(160deg,#080e20fa,#050a18fa);box-shadow:0 24px 54px #00000080;transform:translateY(-8px) scale(.98);transform-origin:top right;opacity:0;pointer-events:none;transition:transform .17s ease,opacity .17s ease;overflow:hidden}.song-select-premium .ss-sort-mobile-menu-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-bottom:1px solid color-mix(in srgb,var(--text-primary) 14%,transparent);background:color-mix(in srgb,var(--bg-base) 76%,transparent)}.song-select-premium .ss-sort-mobile-menu-head>span{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-secondary);font-weight:800}.song-select-premium .ss-sort-mobile-options{display:grid;gap:8px;padding:10px}.song-select-premium .ss-sort-mobile-option{border:1px solid color-mix(in srgb,var(--text-primary) 20%,transparent);border-radius:12px;background:linear-gradient(180deg,color-mix(in srgb,var(--text-primary) 8%,transparent),color-mix(in srgb,var(--text-primary) 3%,transparent));color:var(--text-primary);padding:10px 12px;font:inherit;font-size:.82rem;font-weight:700;letter-spacing:.05em;text-align:left;cursor:pointer}.song-select-premium .ss-sort-mobile-option.is-active{border-color:color-mix(in srgb,var(--neon-cyan) 58%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--neon-cyan) 24%,transparent),color-mix(in srgb,var(--neon-cyan) 10%,transparent));box-shadow:0 0 14px color-mix(in srgb,var(--neon-cyan) 25%,transparent)}.song-select-premium.is-sort-open .ss-sort-mobile-menu{transform:translateY(0) scale(1);opacity:1;pointer-events:auto}.song-select-premium .ss-song-list-scroll{flex:1 1 auto;min-height:0;overflow:auto;overflow-x:hidden;padding:10px}.song-select-premium .ss-song-list{display:flex;flex-direction:column;gap:8px}.song-select-premium .ss-song-item{display:grid;grid-template-columns:54px minmax(0,1fr) auto;align-items:center;gap:10px;padding:10px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:linear-gradient(135deg,#ffffff08,#ffffff03);cursor:pointer;overflow:hidden;transition:border-color .14s ease,background .14s ease,transform .14s ease}.song-select-premium .ss-song-item:hover{border-color:#44d2ff5c;background:linear-gradient(135deg,#44d2ff1a,#ffffff05)}.song-select-premium .ss-song-item.is-selected{border-color:var(--neon-cyan);background:linear-gradient(135deg,#44d2ff33,#44d2ff0d);box-shadow:0 0 18px #44d2ff47}.song-select-premium .ss-song-item.is-incompatible{border-color:#ff80806b}.song-select-premium .ss-song-thumb{width:54px;height:54px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:var(--bg-card-hover) center / cover no-repeat}.song-select-premium .ss-song-copy{min-width:0;overflow:hidden}.song-select-premium .ss-song-title{margin:0;color:var(--text-primary);font-size:1.02rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-select-premium .ss-song-artist{margin:2px 0 0;color:var(--text-secondary);font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-select-premium .ss-song-badges{margin-top:6px;display:flex;gap:6px;flex-wrap:wrap}.song-select-premium .ss-song-badge{padding:2px 8px;border-radius:999px;font-size:.62rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border:1px solid rgba(255,255,255,.22);color:var(--text-secondary)}.song-select-premium .ss-song-badge.ok{border-color:color-mix(in srgb,var(--neon-green) 46%,transparent);color:var(--neon-green)}.song-select-premium .ss-song-badge.warn{border-color:color-mix(in srgb,var(--difficulty-hard) 46%,transparent);color:var(--difficulty-hard)}.song-select-premium .ss-song-badge.source{border-color:color-mix(in srgb,var(--neon-cyan) 46%,transparent);color:var(--neon-cyan)}.song-select-premium .ss-song-badge.neutral{color:var(--text-secondary)}.song-select-premium .ss-song-stats{text-align:right;display:flex;flex-direction:column;gap:3px;color:var(--text-secondary);font-size:.85rem;font-weight:700}.song-select-premium .ss-song-diff-chip{align-self:flex-end;border:1px solid var(--diff-color, var(--neon-cyan));color:var(--diff-color, var(--neon-cyan));border-radius:999px;padding:1px 8px;font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.song-select-premium .ss-actions-panel{flex:0 0 auto;border-top:1px solid rgba(120,145,185,.2);padding:10px;display:flex;flex-direction:column;gap:8px}.song-select-premium .ss-actions-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}.song-select-premium .ss-actions-stack{display:flex;flex-direction:column;gap:8px}.song-select-premium .ss-stream-input-row{display:grid;grid-template-columns:1fr auto;gap:8px}.song-select-premium .ss-btn{border:1px solid color-mix(in srgb,var(--text-primary) 18%,transparent);border-radius:12px;padding:11px 12px;color:var(--text-primary);background:linear-gradient(180deg,color-mix(in srgb,var(--text-primary) 8%,transparent),color-mix(in srgb,var(--text-primary) 3%,transparent));box-shadow:inset 0 1px color-mix(in srgb,var(--text-primary) 10%,transparent);font-size:.9rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;transition:border-color .18s ease,box-shadow .18s ease,transform .13s ease,background .18s ease}.song-select-premium .ss-btn:hover{border-color:color-mix(in srgb,var(--neon-cyan) 40%,transparent);box-shadow:0 0 16px color-mix(in srgb,var(--neon-cyan) 22%,transparent),inset 0 1px color-mix(in srgb,var(--text-primary) 12%,transparent)}.song-select-premium .ss-btn:active{transform:scale(.985)}.song-select-premium .ss-btn-play{border-color:#44d2ff85;background:linear-gradient(135deg,color-mix(in srgb,var(--neon-cyan) 88%,white),color-mix(in srgb,var(--neon-cyan) 65%,var(--neon-purple)));color:#00162b;box-shadow:0 0 16px #44d2ff6b}.song-select-premium .ss-btn-secondary{background:linear-gradient(180deg,color-mix(in srgb,var(--neon-purple) 28%,var(--bg-card)),color-mix(in srgb,var(--bg-card) 90%,transparent))}.song-select-premium .ss-btn-tertiary{background:linear-gradient(180deg,color-mix(in srgb,var(--text-primary) 6%,transparent),color-mix(in srgb,var(--text-primary) 2%,transparent))}.song-select-premium .ss-btn-ghost{border-color:color-mix(in srgb,var(--text-primary) 28%,transparent);background:color-mix(in srgb,var(--text-primary) 4%,transparent);color:var(--text-secondary)}.song-select-premium .ss-hero-card{display:grid;grid-template-columns:38% 1fr;gap:14px;min-height:100%}.song-select-premium .ss-hero-cover-wrap{border:1px solid rgba(68,210,255,.22);border-radius:14px;background:linear-gradient(180deg,#030916c7,#050c1e99);padding:12px;display:flex;flex-direction:column;gap:8px}.song-select-premium .ss-hero-cover{flex:1;min-height:220px;border-radius:12px;background:#ffffff0a center / cover no-repeat;border:1px solid rgba(255,255,255,.14)}.song-select-premium .ss-hero-level,.song-select-premium .ss-hero-chart{align-self:flex-start;border-radius:999px;padding:3px 10px;font-family:var(--font-mono);font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border:1px solid rgba(255,255,255,.18)}.song-select-premium .ss-hero-level{color:var(--timing-good);border-color:#ffe66a6b}.song-select-premium .ss-hero-chart{color:var(--neon-cyan);border-color:#44d2ff6b}.song-select-premium .ss-hero-body{display:flex;flex-direction:column;min-width:0}.song-select-premium .ss-hero-kicker{color:var(--text-secondary);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase}.song-select-premium .ss-hero-title{margin:6px 0 2px;color:var(--text-primary);font-size:clamp(1.6rem,2.4vw,2.3rem);line-height:1.1}.song-select-premium .ss-hero-artist{color:var(--neon-cyan);font-size:1.08rem;font-weight:700}.song-select-premium .ss-meta-grid{margin-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.song-select-premium .ss-meta-item{border:1px solid rgba(120,145,185,.24);border-radius:12px;padding:8px 10px;background:#ffffff05}.song-select-premium .ss-meta-item>span{display:block;color:var(--text-secondary);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase}.song-select-premium .ss-meta-item>strong{display:block;margin-top:4px;color:var(--text-primary);font-size:1.02rem}.song-select-premium .ss-score-strip{margin-top:12px;border:1px solid rgba(120,145,185,.24);border-radius:12px;padding:10px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;background:#ffffff05}.song-select-premium .ss-score-item>span{display:block;color:var(--text-secondary);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase}.song-select-premium .ss-score-item>strong{display:block;margin-top:2px;color:var(--text-primary);font-size:1rem}.song-select-premium .ss-status-pill{grid-column:1 / -1;justify-self:start;border-radius:999px;padding:4px 10px;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border:1px solid rgba(255,255,255,.22);color:var(--text-secondary)}.song-select-premium .ss-status-pill.clear{color:var(--neon-cyan);border-color:#44d2ff75}.song-select-premium .ss-status-pill.fc{color:var(--neon-green);border-color:color-mix(in srgb,var(--neon-green) 46%,transparent)}.song-select-premium .ss-status-pill.perfect{color:var(--timing-good);border-color:#ffe66a75}.song-select-premium .ss-arcade-toggle{margin-top:12px;border:1px solid rgba(255,194,79,.42);border-radius:12px;background:#ffc24f12;color:var(--timing-good);padding:10px;text-align:left;display:grid;grid-template-columns:1fr auto;gap:8px;cursor:pointer}.song-select-premium .ss-arcade-toggle.is-on{box-shadow:0 0 12px #ffc24f42}.song-select-premium .ss-arcade-title{font-size:.95rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.song-select-premium .ss-arcade-subtitle{grid-column:1 / 2;color:color-mix(in srgb,var(--timing-good) 68%,white);font-size:.78rem}.song-select-premium .ss-arcade-indicator{align-self:center;border:1px solid rgba(255,194,79,.5);border-radius:999px;padding:2px 8px;font-size:.72rem;font-weight:800}.song-select-premium .ss-stream-chart-tools{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap}.song-select-premium .ss-hint{margin-top:auto;padding-top:12px;color:var(--text-secondary);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}.song-select-premium .ss-search-hit{background:#44d2ff33;color:var(--text-primary);border-radius:3px;padding:0 2px}.song-select-premium .diff-easy{color:var(--difficulty-easy)}.song-select-premium .diff-medium{color:var(--difficulty-medium)}.song-select-premium .diff-hard{color:var(--difficulty-hard)}.song-select-premium .diff-expert{color:var(--difficulty-expert)}.song-select-premium .diff-extreme{color:var(--difficulty-extreme)}@media(max-width:1200px){.song-select-premium .ss-main-grid,.song-select-premium .ss-hero-card{grid-template-columns:1fr}.song-select-premium .ss-hero-cover{min-height:180px}}@media(max-width:768px),(orientation:portrait){.song-select-premium .ss-content{padding:10px}.song-select-premium .ss-header{padding:10px;flex-direction:column;align-items:stretch;gap:8px}.song-select-premium .ss-header-controls{width:100%;display:grid;grid-template-columns:1fr auto auto;gap:6px}.song-select-premium .ss-source-tabs{overflow:auto;white-space:nowrap}.song-select-premium .ss-main-grid{padding:8px;gap:8px}.song-select-premium .ss-hero-panel{max-height:42vh}.song-select-premium .ss-browser-panel{min-height:48vh}.song-select-premium .ss-search-row{grid-template-columns:1fr}.song-select-premium .ss-song-item{grid-template-columns:48px 1fr auto;padding:8px}.song-select-premium .ss-song-thumb{width:48px;height:48px}.song-select-premium .ss-song-title{font-size:.92rem}.song-select-premium .ss-song-artist{font-size:.8rem}.song-select-premium .ss-song-stats{font-size:.74rem}.song-select-premium .ss-actions-row,.song-select-premium .ss-stream-input-row{grid-template-columns:1fr}.song-select-premium .ss-score-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}.song-select-premium .ss-hero-panel{padding:0;overflow:hidden;display:flex;flex-direction:column;min-height:0}.song-select-premium .ss-hero-panel-scroll{flex:1 1 auto;min-height:0;height:auto;overflow:auto;overscroll-behavior:contain;padding:14px}.song-select-premium .ss-mobile-sheet-head,.song-select-premium .ss-mobile-actions-head,.song-select-premium .ss-mobile-footer,.song-select-premium .ss-mobile-overlay{display:none}.song-select-premium .ss-btn.is-disabled{opacity:.42;pointer-events:none;filter:saturate(.75)}@media(max-width:900px){.song-select-premium .ss-content{padding:8px}.song-select-premium .ss-shell{border-radius:16px}.song-select-premium .ss-header{padding:12px;align-items:stretch;gap:8px}.song-select-premium .ss-brand-logo{font-size:2rem;line-height:1}.song-select-premium .ss-brand-subtitle{font-size:.66rem;letter-spacing:.18em}.song-select-premium .ss-header-controls{width:100%;display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.song-select-premium .ss-source-tabs{grid-column:1 / -1;width:100%;overflow:auto;white-space:nowrap;scrollbar-width:thin}.song-select-premium .ss-style-badge{justify-self:start;padding:5px 10px;font-size:.66rem}.song-select-premium .ss-icon-btn{justify-self:end;min-height:34px;padding:7px 10px;font-size:.7rem}.song-select-premium .ss-main-grid{display:block;padding:8px;padding-bottom:calc(112px + env(safe-area-inset-bottom));gap:8px}.song-select-premium .ss-browser-panel{min-height:0;height:100%;border-radius:14px}.song-select-premium .ss-browser-top{padding:10px}.song-select-premium .ss-difficulty-pills{flex-wrap:nowrap;overflow:auto;padding-bottom:2px;margin-bottom:8px}.song-select-premium .ss-diff-btn{flex:0 0 auto;min-height:38px;padding:7px 13px;font-size:.72rem}.song-select-premium .ss-search-row{grid-template-columns:1fr;gap:6px}.song-select-premium .ss-sort-wrap{width:100%;min-height:40px;justify-content:space-between}.song-select-premium .ss-sort-wrap{min-height:40px}.song-select-premium .ss-sort-mobile-trigger{width:100%;min-height:40px;padding:0}.song-select-premium .ss-song-list-scroll{padding:8px}.song-select-premium .ss-song-list{gap:7px}.song-select-premium .ss-song-item{grid-template-columns:46px minmax(0,1fr) auto;gap:8px;min-height:78px;border-radius:11px;padding:8px}.song-select-premium .ss-song-thumb{width:46px;height:46px;border-radius:9px}.song-select-premium .ss-song-title{font-size:.94rem;line-height:1.15}.song-select-premium .ss-song-artist{font-size:.8rem}.song-select-premium .ss-song-badges{margin-top:5px;gap:4px}.song-select-premium .ss-song-badge{font-size:.56rem;padding:2px 6px}.song-select-premium .ss-song-stats{font-size:.74rem;gap:2px}.song-select-premium .ss-actions-panel,.song-select-premium .ss-hero-panel{position:fixed;left:10px;right:10px;top:calc(148px + env(safe-area-inset-top));bottom:calc(8px + env(safe-area-inset-bottom));max-height:none;z-index:52;border-radius:14px;border:1px solid color-mix(in srgb,var(--neon-cyan) 24%,transparent);background:linear-gradient(155deg,color-mix(in srgb,var(--bg-base) 98%,transparent),color-mix(in srgb,var(--bg-deep) 98%,transparent));transform:translateY(calc(100% + 24px));opacity:0;pointer-events:none;transition:transform .22s cubic-bezier(.2,.9,.22,1),opacity .18s ease;box-shadow:0 24px 54px #00000080}.song-select-premium .ss-hero-panel{z-index:45}.song-select-premium .ss-actions-panel{overflow:auto;padding:10px 10px calc(18px + env(safe-area-inset-bottom));gap:8px}.song-select-premium .ss-hero-panel-scroll{padding:14px 14px calc(92px + env(safe-area-inset-bottom))}.song-select-premium .ss-mobile-sheet-head,.song-select-premium .ss-mobile-actions-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-bottom:1px solid color-mix(in srgb,var(--text-primary) 14%,transparent);background:color-mix(in srgb,var(--bg-base) 74%,transparent);position:sticky;top:0;z-index:2}.song-select-premium .ss-mobile-sheet-head>span,.song-select-premium .ss-mobile-actions-head>span{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-secondary);font-weight:800}.song-select-premium .ss-mobile-sheet-head .ss-icon-btn,.song-select-premium .ss-mobile-actions-head .ss-icon-btn{min-width:auto;padding:6px 10px;font-size:.68rem}.song-select-premium #btn-start{display:none}.song-select-premium .ss-actions-row{grid-template-columns:1fr}.song-select-premium .ss-stream-input-row{grid-template-columns:1fr auto;align-items:center}.song-select-premium .ss-btn-secondary{background:linear-gradient(180deg,color-mix(in srgb,var(--neon-purple) 18%,var(--bg-card)),color-mix(in srgb,var(--bg-card) 86%,transparent))}.song-select-premium .ss-btn-tertiary,.song-select-premium .ss-btn-ghost{background:color-mix(in srgb,var(--text-primary) 7%,transparent)}.song-select-premium .ss-mobile-footer{display:grid;grid-template-columns:auto 1fr auto;grid-template-areas:"details summary more" "play play play";gap:8px;position:absolute;left:8px;right:8px;bottom:calc(8px + env(safe-area-inset-bottom));z-index:50;padding:10px;border-radius:14px;border:1px solid color-mix(in srgb,var(--neon-cyan) 26%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--bg-base) 96%,transparent),color-mix(in srgb,var(--bg-deep) 96%,transparent));box-shadow:0 8px 22px #0006;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:transform .18s ease,opacity .18s ease}.song-select-premium .ss-mobile-selected{grid-area:summary;min-width:0;align-self:center;font-size:.7rem;color:var(--text-secondary);letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 4px}.song-select-premium .ss-btn-mobile-inline{min-height:34px;padding:8px 10px;font-size:.68rem;letter-spacing:.08em;border-color:color-mix(in srgb,var(--text-primary) 28%,transparent);background:color-mix(in srgb,var(--text-primary) 10%,transparent)}.song-select-premium #btn-open-details{grid-area:details}.song-select-premium #btn-more-actions{grid-area:more}.song-select-premium .ss-btn-mobile-play{grid-area:play;width:100%;min-height:46px;font-size:.94rem}.song-select-premium .ss-sort-mobile-menu{left:10px;right:10px;top:auto;width:auto;bottom:calc(8px + env(safe-area-inset-bottom));transform:translateY(calc(100% + 24px));transform-origin:bottom center;z-index:53}.song-select-premium .ss-mobile-overlay{display:block;position:fixed;inset:0;border:0;background:#02061073;opacity:0;pointer-events:none;transition:opacity .18s ease;z-index:40}.song-select-premium.is-mobile-overlay-open .ss-mobile-overlay{opacity:1;pointer-events:auto}.song-select-premium.is-mobile-overlay-open .ss-mobile-footer{transform:translateY(115%);opacity:0;pointer-events:none}.song-select-premium.is-mobile-details-open .ss-hero-panel,.song-select-premium.is-mobile-actions-open .ss-actions-panel{transform:translateY(0);opacity:1;pointer-events:auto}}.hud-vignette{position:absolute;inset:0;background:radial-gradient(ellipse at 50% -20%,rgba(0,245,255,.1) 0%,rgba(0,245,255,.02) 28%,transparent 56%),linear-gradient(180deg,rgba(0,0,0,.42) 0%,transparent 28%,transparent 74%,rgba(0,0,0,.48) 100%);pointer-events:none;z-index:2}.hud-top{position:absolute;top:8px;left:12px;right:12px;display:grid;grid-template-columns:1.18fr minmax(160px,.74fr) 1fr;gap:10px;align-items:start;pointer-events:none;z-index:12}.hud-panel{border:1px solid rgba(0,245,255,.12);border-radius:14px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);background:linear-gradient(145deg,#080e1ec2,#060a1680);box-shadow:inset 0 1px #ffffff14,0 10px 24px #00000047}.hud-panel-left{display:flex;align-items:center;gap:12px;padding:10px 12px;pointer-events:auto}.hud-panel-center{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px 14px 10px}.hud-panel-right{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 12px}.hud-pause-btn{width:36px;height:36px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:#ffffff0f;color:var(--text-primary);font-family:var(--font-mono);font-size:.95rem;font-weight:700;letter-spacing:.08em;cursor:pointer;transition:transform .12s ease,border-color .12s ease,background .12s ease}.hud-pause-btn:hover{transform:translateY(-1px) scale(1.02);border-color:#00f5ff73;background:#00f5ff24}.hud-song-info{min-width:0;display:flex;flex-direction:column;gap:3px}.hud-song-title{font-size:.88rem;font-weight:700;color:var(--text-primary);letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hud-song-artist{font-size:.68rem;color:var(--text-secondary);letter-spacing:.05em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hud-song-meta{display:flex;align-items:center;gap:6px}.hud-chip{padding:2px 8px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:#ffffff08;color:var(--text-primary);font-family:var(--font-mono);font-size:.62rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.hud-chip-diff{text-shadow:0 0 12px currentColor}.hud-score-caption{font-size:.58rem;color:var(--text-secondary);letter-spacing:.2em;text-transform:uppercase}.hud-score{font-family:var(--font-mono);font-size:clamp(1.28rem,2.1vw,2rem);font-weight:800;color:var(--neon-cyan);letter-spacing:.07em;text-shadow:0 0 18px rgba(0,245,255,.55)}.hud-combo{text-align:right}.hud-combo-count{font-family:var(--font-mono);font-size:clamp(1.26rem,2.45vw,2.45rem);font-weight:900;color:var(--timing-good);line-height:.95}.hud-combo-label{margin-top:3px;font-size:.58rem;letter-spacing:.2em;text-transform:uppercase;color:var(--text-secondary)}.hud-right-stats{display:flex;flex-direction:column;align-items:flex-end;gap:4px}.hud-mult{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.1em;color:var(--neon-cyan)}.hud-accuracy{position:static;font-family:var(--font-mono);font-size:.8rem;color:var(--text-primary);letter-spacing:.06em;text-align:right;text-shadow:0 0 10px rgba(255,255,255,.12)}.progress-bar-wrap{position:absolute;top:0;left:0;right:0;height:3px;background:#ffffff0a;z-index:18}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--neon-cyan),var(--neon-purple) 55%,var(--neon-pink));transition:width .1s linear;box-shadow:0 0 8px #44d2ffe6}.hit-feedback{position:absolute;left:50%;transform:translate(-50%);font-size:1.08rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase;pointer-events:none;animation:feedbackPop .48s cubic-bezier(.2,.8,.2,1) forwards;z-index:50}@keyframes feedbackPop{0%{opacity:0;transform:translate(-50%) translateY(10px) scale(.78)}20%{opacity:1;transform:translate(-50%) translateY(0) scale(1.08)}70%{opacity:1;transform:translate(-50%) translateY(-4px) scale(1)}to{opacity:0;transform:translate(-50%) translateY(-14px) scale(.96)}}.feedback-perfect{color:var(--timing-perfect);text-shadow:0 0 20px var(--neon-cyan)}.feedback-great{color:var(--timing-great);text-shadow:0 0 20px var(--neon-green)}.feedback-good{color:var(--timing-good);text-shadow:0 0 20px var(--neon-yellow)}.feedback-miss{color:var(--timing-miss);text-shadow:0 0 20px var(--neon-pink)}#pause-overlay{position:absolute;inset:0;background:#050508d9;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:100;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:all}.pause-title{font-size:3rem;font-weight:900;letter-spacing:.15em;text-transform:uppercase;color:var(--neon-cyan);text-shadow:var(--shadow-neon-cyan);margin-bottom:24px}#results-screen{background:radial-gradient(ellipse at 50% 0%,rgba(0,245,255,.08) 0%,transparent 60%),var(--bg-deep)}.results-rank{font-size:8rem;font-weight:900;line-height:1;background:linear-gradient(135deg,var(--neon-cyan),var(--neon-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 0 30px rgba(0,245,255,.4))}.results-score-main{font-family:var(--font-mono);font-size:2.5rem;font-weight:700;color:var(--neon-cyan);letter-spacing:.08em;text-shadow:var(--shadow-neon-cyan)}.results-song-title{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:4px}.results-song-detail{font-size:.8rem;color:var(--text-secondary);letter-spacing:.1em}.results-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;width:100%;max-width:600px;margin:28px 0}.stat-box{background:var(--bg-card);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-md);padding:16px;text-align:center}.stat-value{font-family:var(--font-mono);font-size:1.4rem;font-weight:700;display:block}.stat-label{font-size:.65rem;letter-spacing:.2em;text-transform:uppercase;color:var(--text-secondary);margin-top:4px;display:block}.stat-perfect{color:var(--timing-perfect)}.stat-great{color:var(--timing-great)}.stat-good{color:var(--timing-good)}.stat-miss{color:var(--timing-miss)}.results-actions{display:flex;gap:12px;margin-top:8px}.key-guide{position:absolute;bottom:14px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:8px;pointer-events:none;opacity:.55}.key-group{display:flex;gap:8px}.key-group-sep{width:20px;height:24px;border-left:1px dashed rgba(255,255,255,.15);margin:0 4px}.key-chip{display:flex;flex-direction:column;align-items:center;gap:4px}.key-badge{width:34px;height:34px;border-radius:7px;border:1.5px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:.8rem;font-weight:700;background:#ffffff0a}.key-lane-label{font-size:.58rem;color:var(--text-dim);letter-spacing:.08em}.bg-particle{position:absolute;border-radius:50%;pointer-events:none;animation:floatUp linear infinite}@keyframes floatUp{0%{transform:translateY(0) scale(1);opacity:.6}to{transform:translateY(-100vh) scale(0);opacity:0}}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--neon-purple);border-radius:4px}@media(max-width:768px),(orientation:portrait){.btn{padding:12px 18px;font-size:.875rem;min-height:44px}.menu-logo{font-size:clamp(2.5rem,14vw,5rem)}.menu-tagline{margin-bottom:40px;font-size:.8rem;letter-spacing:.25em}.menu-buttons{width:min(90vw,360px);gap:16px}#song-select-screen{padding:0;overflow:hidden}.song-select-header{position:fixed;top:0;left:0;right:0;z-index:50;padding:calc(env(safe-area-inset-top,10px) + 16px) 12px 12px 12px;background:#050508f5;border-bottom:1px solid rgba(255,255,255,.07);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);margin:0;text-align:center}.song-select-header h1{font-size:.65rem;font-weight:700;letter-spacing:.35em;color:var(--text-secondary);margin:0;text-transform:uppercase}.song-select-container{flex-direction:column;padding:0;gap:0;width:100%;height:100%;overflow:hidden}.song-select-details{position:fixed!important;bottom:0!important;left:0!important;right:0!important;width:100%!important;box-sizing:border-box!important;margin:0!important;padding:16px 16px calc(env(safe-area-inset-bottom,16px) + 16px) 16px!important;background:#08080ef7;border-top:1px solid rgba(255,255,255,.08);border-radius:18px 18px 0 0;box-shadow:0 -8px 30px #000000b3;z-index:100!important;display:flex!important;flex-direction:column!important;flex-wrap:nowrap;gap:10px;backdrop-filter:blur(28px);-webkit-backdrop-filter:blur(28px)}.song-detail-cover{display:block!important;width:48px!important;min-width:48px!important;height:48px!important;border-radius:8px!important;margin:0!important;box-shadow:0 4px 12px #000000b3;border:1px solid rgba(255,255,255,.1)!important;flex-shrink:0;align-self:center}.song-detail-cover>div{display:none!important}.song-detail-info{flex:1;min-width:0;margin:0!important}.song-detail-title{font-size:.95rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px;color:var(--text-primary)}.song-detail-artist{display:none}.song-detail-bpm{font-size:.65rem;color:var(--text-secondary);font-family:var(--font-mono)}#btn-arcade-toggle{width:100%!important;max-width:none!important;box-sizing:border-box!important;margin:0!important;padding:12px 16px!important;gap:10px!important;background:#ffb40012!important;border:1px solid rgba(255,180,0,.2)!important;border-radius:12px!important;order:2}#btn-arcade-toggle span{font-size:1.1rem!important}#btn-arcade-toggle div>div:last-child{display:none}.song-select-details div[style*="display:flex; gap: 15px"]{gap:12px!important;margin:0!important;width:100%!important;box-sizing:border-box!important;max-width:none!important;order:3}.song-select-details .btn{font-size:.82rem!important;padding:10px 8px!important;min-height:40px!important}.song-select-details p[style*="margin-top:16px"]{display:none!important}.song-select-list{position:fixed!important;inset:0 0 190px!important;overflow:hidden;display:flex;flex-direction:column;padding-top:calc(env(safe-area-inset-top,10px) + 48px);z-index:10}.song-list-controls{flex:0 0 auto;padding:14px 16px 8px;border-bottom:1px solid rgba(255,255,255,.05);background:#050508eb;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:space-between;gap:8px;overflow-x:auto;scrollbar-width:none;z-index:5}.song-list-controls::-webkit-scrollbar{display:none}.difficulty-selector{gap:5px;margin:0;flex-shrink:0;display:flex}.diff-btn{padding:5px 12px;font-size:.72rem;min-height:30px;border-radius:14px;flex-shrink:0;letter-spacing:.03em}.song-list-vertical{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;padding:8px 10px 20px;gap:6px;-webkit-overflow-scrolling:touch;touch-action:pan-y!important;pointer-events:auto}#song-list{display:flex;flex-direction:column;gap:6px;width:100%;touch-action:pan-y!important}.song-list-item{display:flex;align-items:center;height:60px;min-height:60px;max-height:60px;padding:0 12px;background:#ffffff08;border:1px solid rgba(255,255,255,.05);border-left:3px solid transparent;border-radius:10px;opacity:.8;width:100%;box-sizing:border-box;position:relative;overflow:hidden;flex-shrink:0;transition:background .15s ease,border-color .15s ease,opacity .15s ease;touch-action:pan-y!important}.song-list-item.selected{background:#00f5ff14;border-left-color:var(--neon-cyan);border-left-width:4px;opacity:1;box-shadow:0 0 20px #00f5ff1f}.song-list-item:active{background:#00f5ff0d;opacity:.9}.song-list-item-thumb{width:40px;height:40px;margin-right:12px;border-radius:7px;background-size:cover;background-position:center;background-color:#ffffff0d;flex-shrink:0}.song-list-item-info{flex:1;overflow:hidden}.song-list-item-title{font-size:.85rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px;color:#f0f0ff}.song-list-item-artist{font-size:.67rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.song-select-footer-actions{margin-top:8px!important;gap:6px!important;padding-bottom:8px!important;grid-template-columns:1fr 1fr}.song-select-footer-actions .btn{font-size:.7rem;padding:8px;min-height:36px}.hud-top{top:6px;left:8px;right:8px;display:flex;flex-wrap:wrap;gap:8px}.hud-panel{border-radius:11px}.hud-panel-left,.hud-panel-right{flex:1 1 calc(50% - 4px);min-width:0;padding:8px 10px}.hud-panel-center{order:3;width:100%;padding:6px 10px 8px}.hud-song-title{font-size:.72rem;max-width:34vw}.hud-song-artist{display:none}.hud-score-caption{font-size:.5rem}.hud-score{font-size:1.2rem}.hud-combo-count{font-size:1.46rem}.hud-combo-label{font-size:.5rem}.hud-mult,.hud-accuracy{font-size:.68rem}.hud-pause-btn{width:32px;height:32px;border-radius:8px;font-size:.85rem}.hit-feedback{font-size:.95rem}.key-guide{bottom:6px;gap:0;width:100%;justify-content:space-around;transform:none;left:0;opacity:.52}.key-chip{flex:1;align-items:center}.key-badge{width:38px;height:38px;font-size:.85rem;border-radius:9px;border-width:2px}.key-lane-label{font-size:.58rem;margin-top:3px}.pause-title{font-size:2rem}#pause-overlay{gap:12px}.results-stats{grid-template-columns:repeat(2,1fr);gap:8px}.results-rank{font-size:4.5rem}.results-score-main{font-size:1.6rem}.results-actions{flex-wrap:wrap;justify-content:center;gap:8px}.results-actions .btn{flex:1;min-width:120px}}.song-detail-top-row{display:contents}@media(max-width:768px),(orientation:portrait){.song-detail-top-row{display:flex;flex-direction:row;align-items:center;gap:12px;width:100%;min-width:0}}@media(max-width:420px){.song-detail-cover{width:54px;min-width:54px}.song-detail-title{font-size:.9rem}.diff-btn{padding:4px 8px;font-size:.68rem}.key-badge{width:32px;height:32px;font-size:.75rem}}.ui-root{position:absolute;inset:0;pointer-events:none;z-index:2000;color-scheme:dark;--ui-surface: rgba(17, 17, 34, .98);--ui-border: rgba(255, 255, 255, .12);--ui-text: #f3f3ff;--ui-text-muted: #a0a0b8;--ui-backdrop: rgba(5, 5, 8, .72);--ui-accent: var(--neon-cyan);--ui-danger: #ff2d78;--ui-success: #39ff14;--ui-warning: #ffe600;--ui-info: #00f5ff}.ui-root[data-theme=light]{color-scheme:light;--ui-surface: rgba(248, 248, 255, .98);--ui-border: rgba(0, 0, 0, .12);--ui-text: #151522;--ui-text-muted: #505068;--ui-backdrop: rgba(255, 255, 255, .82)}.ui-modal-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:var(--ui-backdrop);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);opacity:0;transition:opacity .18s ease;pointer-events:auto}.ui-modal-overlay.ui-open{opacity:1}.ui-modal-overlay.ui-closing{opacity:0}.ui-modal{width:min(560px,calc(100% - 32px));background:var(--ui-surface);border:1px solid var(--ui-border);border-radius:16px;padding:18px 20px 16px;color:var(--ui-text);box-shadow:0 24px 60px #00000073;transform:translateY(8px) scale(.98);opacity:0;transition:transform .18s ease,opacity .18s ease}.ui-modal-overlay.ui-open .ui-modal{transform:translateY(0) scale(1);opacity:1}.ui-modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.ui-modal-title{font-size:1.25rem;font-weight:800;letter-spacing:.02em;margin:0}.ui-modal-body{display:flex;flex-direction:column;gap:12px;margin-top:8px}.ui-modal-message{font-size:.95rem;color:var(--ui-text-muted);line-height:1.5;white-space:pre-line}.ui-modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:16px;flex-wrap:wrap}.ui-input-wrap{display:flex;flex-direction:column;gap:6px}.ui-input-label{font-size:.8rem;color:var(--ui-text-muted)}.ui-input{width:100%;padding:10px 12px;background:#ffffff0f;border:1px solid rgba(255,255,255,.18);border-radius:10px;color:var(--ui-text);font-family:inherit;font-size:.95rem}.ui-root[data-theme=light] .ui-input{background:#0000000a;border-color:#00000026;color:var(--ui-text)}.ui-input:focus{outline:none;border-color:var(--ui-accent);box-shadow:0 0 0 2px #00f5ff33}.ui-input-error{border-color:var(--ui-danger)}.ui-toast-host{position:absolute;right:24px;bottom:24px;display:flex;flex-direction:column;gap:10px;align-items:flex-end;pointer-events:none}.ui-toast{min-width:220px;max-width:360px;background:var(--ui-surface);border:1px solid var(--ui-border);border-left:4px solid var(--ui-accent);border-radius:12px;padding:10px 12px;color:var(--ui-text);display:flex;align-items:center;gap:10px;pointer-events:auto;box-shadow:0 12px 30px #00000059;opacity:0;transform:translateY(8px);transition:opacity .16s ease,transform .16s ease}.ui-toast.ui-show{opacity:1;transform:translateY(0)}.ui-toast.ui-hide{opacity:0;transform:translateY(8px)}.ui-toast-message{font-size:.85rem;color:var(--ui-text);line-height:1.4;flex:1}.ui-toast-close{background:transparent;border:none;color:var(--ui-text-muted);font-size:1.1rem;cursor:pointer;padding:0 4px}.ui-toast-info{border-left-color:var(--ui-info)}.ui-toast-success{border-left-color:var(--ui-success)}.ui-toast-warning{border-left-color:var(--ui-warning)}.ui-toast-error{border-left-color:var(--ui-danger)}@media(max-width:640px){.ui-modal{width:calc(100% - 24px);padding:16px}.ui-toast-host{right:12px;left:12px;align-items:stretch}.ui-toast{max-width:none}}@media(min-width:769px){.song-select-container{display:flex;width:100%;height:100%;padding:100px 60px 40px;gap:40px;max-width:1600px;margin:0 auto;min-height:0;overflow:hidden}.song-select-details{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;min-width:0}.song-detail-cover{width:100%;max-width:520px;aspect-ratio:16/9;border-radius:var(--radius-lg);background-size:cover;background-position:center;box-shadow:0 30px 60px #000000b3;border:1px solid rgba(255,255,255,.1);margin-bottom:35px;position:relative;transition:background-image .3s ease}.song-detail-cover:after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 0 40px #00000080;pointer-events:none}.song-detail-info{margin-bottom:30px;width:100%;min-width:0;overflow:hidden}.song-detail-title{font-size:2.8rem;font-weight:900;line-height:1.1;text-shadow:0 4px 15px rgba(0,0,0,.8);margin-bottom:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.song-detail-artist{font-size:1.25rem;color:var(--neon-cyan);font-weight:600;letter-spacing:.05em;margin-bottom:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.song-detail-bpm{font-family:var(--font-mono);font-size:.95rem;color:var(--text-secondary);font-weight:700}.song-select-list{flex:0 0 520px;display:flex;flex-direction:column;height:100%;min-height:0;padding-bottom:20px}.song-list-controls{padding:15px 0;border-bottom:1px solid rgba(255,255,255,.05)}.song-list-vertical{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;gap:8px;padding:10px 12px;scrollbar-width:thin;scrollbar-color:var(--neon-cyan) rgba(255,255,255,.05);mask-image:linear-gradient(to bottom,black 90%,transparent 100%);-webkit-mask-image:linear-gradient(to bottom,black 90%,transparent 100%);touch-action:pan-y!important;pointer-events:auto}#song-list{display:flex;flex-direction:column;gap:8px;width:100%;touch-action:pan-y!important}.song-list-item{display:flex;align-items:center;height:76px;min-height:76px;padding:0 18px;background:#1129;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.05);border-left:4px solid transparent;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);opacity:.75;position:relative;overflow:hidden;flex-shrink:0;width:100%;box-sizing:border-box;touch-action:pan-y}.song-list-item:hover{background:#191932d9;opacity:.95;border-color:#ffffff26}.song-list-item.selected{background:#00f5ff1f;border-color:var(--neon-cyan);border-left-color:var(--neon-cyan);border-left-width:5px;box-shadow:0 0 25px #00f5ff33,inset 0 0 12px #00f5ff0f;opacity:1}.song-list-item-thumb{width:54px;height:54px;border-radius:8px;background-size:cover;background-position:center;background-color:#ffffff0d;margin-right:18px;flex-shrink:0;box-shadow:0 4px 12px #0009}.song-list-item-info{flex:1;overflow:hidden}.song-list-item-title{font-size:1.15rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.song-select-header{position:absolute;top:35px;left:45px;text-align:left}.song-select-header h1{font-size:2.2rem;font-weight:900;text-shadow:0 4px 15px rgba(0,0,0,.8);background:linear-gradient(135deg,#fff,#aaa);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}}.song-select-footer-actions{margin-top:15px;display:grid;grid-template-columns:1fr 1fr;gap:10px}.song-select-footer-actions .btn{font-size:.75rem;padding:10px;text-transform:none;font-weight:600}.btn-import-audio{background:linear-gradient(135deg,#60ff20,#39ff14);color:#000;box-shadow:0 4px 15px #39ff1433}.btn-import-folder{background:linear-gradient(135deg,#20b2aa,#008b8b);color:#000;box-shadow:0 4px 15px #20b2aa33}.btn-lobby,.btn-back-nav{grid-column:1 / -1;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:var(--text-primary)}.btn-lobby:hover,.btn-back-nav:hover{border-color:var(--neon-cyan);color:var(--neon-cyan);box-shadow:var(--shadow-neon-cyan)}@media(max-width:768px){.song-select-footer-actions{margin-top:10px;gap:8px;padding-bottom:20px}}.editor-screen{position:absolute;inset:0;pointer-events:auto;background:var(--bg-base);z-index:100;display:flex;flex-direction:column}.editor-layout{display:flex;flex:1;height:100%}.editor-sidebar{width:320px;background:var(--bg-card);border-right:1px solid rgba(255,255,255,.05);box-shadow:5px 0 20px #00000080;padding:24px;display:flex;flex-direction:column;gap:16px;overflow-y:auto;z-index:10;touch-action:pan-y}.editor-sidebar h3{font-family:var(--font-mono);color:var(--neon-cyan);font-size:1.2rem;letter-spacing:.1em;text-transform:uppercase;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:12px;margin-bottom:8px}.form-group label{display:block;font-size:.85rem;color:var(--text-secondary);margin-bottom:6px}.form-group input[type=text],.form-group input[type=number],.form-group input[type=file]{width:100%;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:var(--text-primary);padding:8px 12px;border-radius:6px;font-family:inherit;font-size:.95rem}.form-group input[type=range]{width:100%}.editor-playback-controls{display:flex;gap:12px}.editor-main{flex:1;position:relative;background:#0a0a0f;overflow:hidden;cursor:crosshair}.btn-danger{background:#ff2d781a;border-color:#ff2d784d;color:#ff2d78}.btn-danger:hover{background:#ff2d7833;border-color:#ff2d78;box-shadow:0 0 15px #ff2d7866}@media(max-width:768px){.editor-layout{flex-direction:column-reverse}.editor-sidebar{width:100%;height:40%;min-height:250px;border-right:none;border-top:1px solid rgba(255,255,255,.05);padding:16px;gap:12px}.editor-main{height:60%;flex:none}.editor-sidebar h3{font-size:1rem;padding-bottom:8px;margin-bottom:4px}}