:root{--void: #080A0F;--deep: #0E1118;--surface: #171B24;--surface-hi: #222834;--hairline: #303846;--lane-1: #72C7B8;--lane-2: #D982A1;--lane-3: #9698D8;--judge-perfect: #3DCF7A;--judge-great: #A8C84A;--judge-good: #E0A03A;--judge-miss: #E04B4B;--text-hi: #F3F5F7;--text-mid: #ADB5C2;--text-lo: #737D8D;--danger: #DD766D;--success: #72C7B8;--game-bg: #090C12;--game-bg-soft: #111722;--game-deck: #151A23;--game-deck-hi: #202733;--game-divider: #485362;--game-target: #DCE2E8;--game-note-face: #EFF2F5;--game-note-edge: #FFFFFF;--game-shadow: #020305;--game-ambient-1: #1A2330;--game-ambient-2: #171C29;--font-display: "Chakra Petch", system-ui, sans-serif;--font-body: "Archivo", system-ui, sans-serif;--step--1: clamp(.78rem, .74rem + .2vw, .86rem);--step-0: clamp(.95rem, .9rem + .25vw, 1.05rem);--step-1: clamp(1.25rem, 1.1rem + .7vw, 1.6rem);--step-2: clamp(1.75rem, 1.45rem + 1.4vw, 2.6rem);--step-3: clamp(2.5rem, 1.9rem + 2.8vw, 4.2rem);--step-4: clamp(3.6rem, 2.4rem + 5.6vw, 7rem);--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 24px;--sp-6: 32px;--sp-7: 48px;--sp-8: 72px;--r-sm: 4px;--r-md: 10px;--r-lg: 18px;--r-pill: 999px;--dur-fast: .12s;--dur-base: .22s;--dur-slow: .42s;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.65, 0, .35, 1);--lane-cb-1: #3D9BFF;--lane-cb-2: #FF9E3D;--lane-cb-3: #F6F0FF}body.lane-colourblind{--lane-1: var(--lane-cb-1);--lane-2: var(--lane-cb-2);--lane-3: var(--lane-cb-3)}body.lane-high-contrast{--lane-1: #00FFC2;--lane-2: #FFE14D;--lane-3: #FFFFFF}@font-face{font-family:Chakra Petch;src:url(/fonts/ChakraPetch-SemiBold.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}@font-face{font-family:Chakra Petch;src:url(/fonts/ChakraPetch-Bold.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:Archivo;src:url(/fonts/Archivo-400.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Archivo;src:url(/fonts/Archivo-500.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}@font-face{font-family:Archivo;src:url(/fonts/Archivo-700.woff2) format("woff2");font-weight:700;font-style:normal;font-display:swap}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;height:100%;min-height:100dvh;background:var(--void);color:var(--text-hi);font-family:var(--font-body);font-size:var(--step-0);font-variant-numeric:tabular-nums;-webkit-tap-highlight-color:transparent;touch-action:manipulation}body{overflow:hidden}#app{position:relative;width:100%;height:100%;min-height:100dvh;overflow:hidden}button,input,select{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}a{color:var(--lane-1)}:focus-visible{outline:2px solid var(--lane-1);outline-offset:2px}.screen{position:absolute;top:0;right:0;bottom:0;left:0;display:none;flex-direction:column;overflow:auto;z-index:2}.screen.is-active{display:flex}.screen>*:not(.screen-canvas-host){position:relative;z-index:1}.screen-canvas-host{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none}.screen-canvas-host canvas{width:100%!important;height:100%!important;pointer-events:none!important}h1,h2,h3{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.08em;margin:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.boot-screen{align-items:center;justify-content:center;gap:var(--sp-5);background:radial-gradient(ellipse at 50% 40%,var(--deep),var(--void) 70%)}.boot-logo{margin:0;font-family:var(--font-display);font-size:var(--step-4);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--text-hi);opacity:.72;transition:opacity var(--dur-slow) var(--ease-out)}.boot-logo.is-filled{opacity:1}.boot-hint{color:var(--text-mid);font-size:var(--step-0)}.photo-notice{max-width:28rem;text-align:center;gap:var(--sp-4);display:flex;flex-direction:column;align-items:center}.home-screen{padding:var(--sp-6) var(--sp-5);gap:var(--sp-6)}.home-top{display:flex;justify-content:space-between;align-items:center}.home-wordmark{font-family:var(--font-display);font-size:var(--step-3);font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--text-hi)}.home-actions{display:flex;flex-direction:column;gap:var(--sp-3);margin-top:auto;margin-bottom:auto;max-width:22rem;width:100%;align-self:center}.home-resume{color:var(--text-mid);font-size:var(--step--1)}.song-select-screen,.leaderboard-screen,.auth-screen,.settings-screen,.calibration-screen,.results-screen{padding:var(--sp-5);gap:var(--sp-4)}.screen-header{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3)}.song-list{display:flex;flex-direction:column;gap:var(--sp-3);padding-bottom:var(--sp-8)}.game-screen{overflow:hidden;touch-action:none}.screen.game-screen>.screen-canvas-host{z-index:0;pointer-events:none}.screen.game-screen>.game-input-capture{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:2;touch-action:none;user-select:none;-webkit-user-select:none;outline:none;cursor:pointer;pointer-events:auto}.screen.game-screen>.game-hud{position:absolute;top:0;right:0;bottom:0;left:0;z-index:3;pointer-events:none;padding:var(--sp-4);display:grid;grid-template-rows:auto 1fr auto}.game-hud{position:absolute;top:0;right:0;bottom:0;left:0;z-index:3;pointer-events:none;padding:var(--sp-4);display:grid;grid-template-rows:auto 1fr auto}.controls-hint{position:absolute;left:50%;bottom:var(--sp-6);transform:translate(-50%);width:min(92vw,36rem);text-align:center;color:var(--text-mid);font-size:var(--step--1);font-variant-numeric:normal;letter-spacing:.02em;padding:var(--sp-2) var(--sp-3);background:color-mix(in srgb,var(--deep) 75%,transparent);border:1px solid var(--hairline);border-radius:var(--r-md);pointer-events:none;transition:opacity var(--dur-slow) var(--ease-out)}.controls-hint.is-hidden{opacity:0}.controls-hint-static{margin-top:var(--sp-3);font-size:var(--step--1);color:var(--text-lo)}.game-hud-top{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--sp-3)}.game-hud .hud-interactive{pointer-events:auto}.results-rank{font-family:var(--font-display);font-size:var(--step-4);font-weight:700;text-align:center;letter-spacing:.08em;line-height:1;margin-top:var(--sp-7)}.results-stats{display:grid;gap:var(--sp-2);text-align:center}.results-actions{display:flex;flex-direction:column;gap:var(--sp-3);margin-top:auto;max-width:22rem;width:100%;align-self:center;padding-bottom:var(--sp-6)}.auth-form,.settings-form{display:flex;flex-direction:column;gap:var(--sp-3);max-width:24rem;width:100%;align-self:center}.field{display:flex;flex-direction:column;gap:var(--sp-1)}.field label{color:var(--text-mid);font-size:var(--step--1)}.field input,.field select{background:color-mix(in srgb,var(--surface) 70%,transparent);border:1px solid var(--hairline);border-radius:var(--r-md);padding:var(--sp-3) var(--sp-4);min-height:44px}.field-error{color:var(--danger);font-size:var(--step--1)}.leaderboard-rows{display:flex;flex-direction:column;gap:var(--sp-2)}.lb-row{display:grid;grid-template-columns:3rem 1fr auto auto;gap:var(--sp-3);align-items:center;padding:var(--sp-3);border-left:2px solid transparent}.lb-row.rank-1{border-left-color:var(--lane-1)}.lb-row.rank-2{border-left-color:var(--lane-2)}.lb-row.rank-3{border-left-color:var(--lane-3)}.lb-self{position:sticky;bottom:0;background:var(--deep);border-top:1px solid var(--hairline)}.calibration-pulse{width:120px;height:120px;border-radius:50%;border:2px solid var(--lane-1);margin:var(--sp-8) auto;opacity:.4}.calibration-pulse.is-beat{opacity:1;box-shadow:0 0 8px color-mix(in srgb,var(--lane-1) 60%,transparent),0 0 32px color-mix(in srgb,var(--lane-1) 25%,transparent)}.empty-state{color:var(--text-mid);text-align:center;padding:var(--sp-7) var(--sp-4)}body.reduce-flashing .combo-meter.tier-glow{text-shadow:none}body.reduce-flashing .neon{box-shadow:inset 0 0 8px color-mix(in srgb,var(--glow) 25%,transparent),0 0 4px color-mix(in srgb,var(--glow) 30%,transparent)}.neon{--glow: var(--lane-1);color:var(--text-hi);border:1px solid color-mix(in srgb,var(--glow) 38%,var(--hairline));box-shadow:inset 0 1px color-mix(in srgb,var(--text-hi) 7%,transparent),0 8px 24px color-mix(in srgb,var(--game-shadow) 24%,transparent)}.neon-btn{--glow: var(--lane-1);display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:var(--sp-3) var(--sp-5);font-family:var(--font-body);font-weight:700;letter-spacing:.025em;color:var(--text-hi);border-radius:var(--r-md);border:1px solid color-mix(in srgb,var(--glow) 34%,var(--hairline));background:color-mix(in srgb,var(--surface) 96%,var(--void));box-shadow:inset 0 1px color-mix(in srgb,var(--text-hi) 6%,transparent),0 6px 18px color-mix(in srgb,var(--game-shadow) 22%,transparent);transition:transform var(--dur-fast) var(--ease-out),background var(--dur-fast),border-color var(--dur-fast)}.neon-btn:hover,.neon-btn:focus-visible{background:var(--surface-hi);border-color:color-mix(in srgb,var(--glow) 58%,var(--hairline));transform:translateY(-1px)}.neon-btn:active{transform:translateY(0)}.neon-btn.glow-1{--glow: var(--lane-1)}.neon-btn.glow-2{--glow: var(--lane-2)}.neon-btn.glow-3{--glow: var(--lane-3)}.neon-btn.is-ghost{box-shadow:none;border-color:var(--hairline);color:var(--text-mid);background:color-mix(in srgb,var(--deep) 88%,transparent)}.panel{position:relative;background:color-mix(in srgb,var(--surface) 88%,transparent);-webkit-backdrop-filter:blur(18px) saturate(1.1);backdrop-filter:blur(18px) saturate(1.1);border:1px solid var(--hairline);border-radius:var(--r-lg);padding:var(--sp-4);box-shadow:inset 0 1px color-mix(in srgb,var(--text-hi) 4%,transparent),0 18px 48px color-mix(in srgb,var(--game-shadow) 22%,transparent)}.panel:before{content:"";position:absolute;top:0;left:var(--sp-4);width:32px;height:2px;background:var(--accent, var(--lane-1));border-radius:var(--r-pill);opacity:.58}.panel.align-right{text-align:right}.panel.align-right:before{left:auto;right:var(--sp-4)}@supports not (backdrop-filter: blur(1px)){.panel{background:color-mix(in srgb,var(--surface) 92%,transparent)}}.user-chip{min-height:44px;padding:var(--sp-2) var(--sp-4);border:1px solid var(--hairline);border-radius:var(--r-pill);color:var(--text-mid);font-size:var(--step--1)}.song-card{--accent: var(--lane-1);cursor:pointer;transition:background var(--dur-fast)}.song-card:hover,.song-card.is-open{background:color-mix(in srgb,var(--surface-hi) 80%,transparent)}.song-card-title{font-family:var(--font-display);font-weight:700;text-transform:uppercase;letter-spacing:.08em}.song-card-meta{color:var(--text-mid);font-size:var(--step--1);margin-top:var(--sp-1)}.song-card-attr{color:var(--text-lo);font-size:var(--step--1);margin-top:var(--sp-2)}.song-card-diffs{display:none;gap:var(--sp-2);margin-top:var(--sp-3);flex-wrap:wrap}.song-card.is-open .song-card-diffs{display:flex}.diff-chip{min-height:44px;padding:var(--sp-2) var(--sp-3);border:1px solid var(--hairline);border-radius:var(--r-md);background:var(--deep)}.diff-chip .rank{color:var(--lane-1);margin-left:var(--sp-2)}.score-hud{font-variant-numeric:tabular-nums;min-width:9rem;padding:var(--sp-2) var(--sp-3);background:color-mix(in srgb,var(--game-bg) 76%,transparent);border:1px solid color-mix(in srgb,var(--game-divider) 58%,transparent);border-radius:var(--r-md);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.score-hud .score{font-family:var(--font-body);font-size:var(--step-1);font-weight:700;letter-spacing:-.025em}.score-hud .star-row{display:flex;align-items:center;gap:3px;margin-top:2px}.score-hud .star{position:relative;width:1rem;height:1rem;flex:0 0 auto}.score-hud .star svg{display:block;width:100%;height:100%}.score-hud .star-base path{fill:color-mix(in srgb,var(--hairline) 85%,var(--text-lo))}.score-hud .star-fill-clip{position:absolute;inset:0 auto 0 0;width:0%;overflow:hidden;transition:width var(--dur-base) var(--ease-out)}.score-hud .star-fill path{fill:var(--lane-1)}.score-hud .star.is-lit .star-fill path{fill:var(--success)}.score-hud .acc{color:var(--text-mid);font-size:var(--step--1);margin-top:2px}.results-stars{display:flex;justify-content:center;gap:6px;margin:var(--sp-3) 0 var(--sp-2)}.results-stars .star{position:relative;width:1.75rem;height:1.75rem}.results-stars .star svg{display:block;width:100%;height:100%}.results-stars .star-base path{fill:color-mix(in srgb,var(--hairline) 85%,var(--text-lo))}.results-stars .star-fill-clip{position:absolute;inset:0 auto 0 0;width:0%;overflow:hidden}.results-stars .star-fill path{fill:var(--success)}.combo-meter{font-family:var(--font-body);font-size:var(--step-2);font-weight:700;color:var(--text-hi);opacity:0;transform:scale(.9);transition:opacity var(--dur-slow),transform var(--dur-slow),text-shadow var(--dur-slow)}.combo-meter.is-visible{opacity:1;transform:scale(1)}.combo-meter.tier-glow{color:var(--lane-1);text-shadow:none}.progress-bar{height:2px;background:var(--hairline);border-radius:var(--r-pill);overflow:hidden;margin-top:var(--sp-2);width:min(40vw,200px)}.progress-bar>span{display:block;height:100%;width:0%;background:color-mix(in srgb,var(--lane-1) 72%,var(--text-hi))}.modal-backdrop,.screen>.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;pointer-events:auto;background:color-mix(in srgb,var(--void) 70%,transparent);display:flex;align-items:center;justify-content:center;padding:var(--sp-5)}.modal{width:min(100%,22rem);display:flex;flex-direction:column;gap:var(--sp-3)}.modal-title{font-size:var(--step-1)}.modal-copy{color:var(--text-mid)}.segmented{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-1);background:var(--deep);padding:var(--sp-1);border-radius:var(--r-md);border:1px solid var(--hairline)}.segmented button{min-height:44px;border-radius:var(--r-sm);color:var(--text-mid)}.segmented button.is-active{background:var(--surface-hi);color:var(--text-hi)}.countdown-overlay,.screen>.countdown-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:90;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:var(--step-4);font-weight:700;background:color-mix(in srgb,var(--void) 50%,transparent);pointer-events:none}