.lyrics-viewport{position:relative;height:100%;overflow:hidden;-webkit-mask-image:linear-gradient(to bottom,transparent,black 20%,black 80%,transparent);mask-image:linear-gradient(to bottom,transparent,black 20%,black 80%,transparent);touch-action:none;cursor:grab}.lyrics-viewport:active{cursor:grabbing}.lyrics-track{position:absolute;top:50%;left:0;right:0;will-change:transform;transition:transform .45s cubic-bezier(.22,1,.36,1)}.lyrics-line{padding:calc(var(--line-gap) / 2) 2rem;font-size:var(--font-size-inactive);color:var(--color-fg-dim);transition:color var(--transition-fast),font-size var(--transition-fast);text-align:center}.lyrics-line.active{color:var(--color-active);font-size:var(--font-size-active);font-weight:600}.lyrics-line-translation{font-size:clamp(.9rem,2vw,1.25rem);color:var(--color-fg-dim);margin-top:.25rem}.now-playing-screen{position:relative;height:100%;overflow:hidden}.album-art-backdrop{position:absolute;top:-40px;right:-40px;bottom:-40px;left:-40px;background-size:cover;background-position:center;filter:blur(40px) brightness(.35);transform:scale(1.2);z-index:0}.now-playing-content{position:relative;z-index:1;display:flex;flex-direction:column;height:100%}.site{--hl-a: #ff6a88;--hl-b: #ffb35c;--card: rgba(255, 255, 255, .045);--card-border: rgba(255, 255, 255, .09);position:relative;height:100%;overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch;user-select:text;-webkit-user-select:text;scroll-behavior:smooth}.glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.45;pointer-events:none;z-index:0}.glow-a{width:520px;height:520px;top:-160px;right:-120px;background:var(--hl-a);opacity:.28}.glow-b{width:460px;height:460px;top:380px;left:-200px;background:var(--hl-b);opacity:.16}.site>header,.site>main,.site>footer{position:relative;z-index:1}.nav{display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:0 auto;padding:1.25rem 1.5rem}.nav nav{display:flex;align-items:center;gap:1rem}.brand{display:flex;align-items:center;gap:.6rem;color:var(--color-fg);text-decoration:none;font-weight:600;font-size:1.1rem;letter-spacing:-.01em}.nav-link{color:var(--color-fg-dim);text-decoration:none;font-size:.95rem}.nav-link:hover{color:var(--color-fg)}.lang-switch{display:flex;border:1px solid var(--card-border);border-radius:999px;overflow:hidden}.lang-switch button{background:transparent;color:var(--color-fg-dim);border:none;padding:.35rem .7rem;font:inherit;font-size:.85rem;cursor:pointer}.lang-switch button.on{background:#ffffff1f;color:var(--color-fg)}.btn{display:inline-flex;align-items:center;gap:.6rem;border-radius:999px;padding:.85rem 1.4rem;font:inherit;font-size:1rem;font-weight:500;cursor:pointer;text-decoration:none;border:1px solid transparent;transition:transform var(--transition-fast),background var(--transition-fast)}.btn:active{transform:scale(.98)}.btn-primary{background:var(--color-fg);color:var(--color-bg)}.btn-primary:hover{background:#fff}.btn-ghost{color:var(--color-fg);border-color:var(--card-border);background:transparent}.btn-ghost:hover{background:var(--card)}.btn-small{padding:.45rem 1rem;font-size:.9rem;background:var(--color-fg);color:var(--color-bg)}.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:3.5rem;align-items:center;max-width:1180px;margin:0 auto;padding:3rem 1.5rem 4rem}.eyebrow{display:inline-block;padding:.3rem .8rem;border:1px solid var(--card-border);border-radius:999px;background:var(--card);color:var(--color-fg-dim);font-size:.85rem}.hero h1{white-space:pre-line;font-size:clamp(2.6rem,5.6vw,4.6rem);line-height:1.04;letter-spacing:-.035em;margin:1.1rem 0;background:linear-gradient(180deg,#fff 30%,#c9ccd4);-webkit-background-clip:text;background-clip:text;color:transparent}.lead{color:var(--color-fg-dim);font-size:1.15rem;line-height:1.6;margin:0;max-width:36rem}.hero-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:2rem}.error{color:var(--color-error)}.pair-card{display:flex;gap:1.1rem;align-items:center;margin-top:2.25rem;padding:1rem;max-width:34rem;border:1px solid var(--card-border);border-radius:18px;background:var(--card)}.pair-qr{width:120px;height:120px;flex-shrink:0;background:#fff;border-radius:12px;padding:6px;display:flex}.pair-qr svg{width:100%;height:100%}.pair-title{font-weight:600}.pair-card p{margin:.3rem 0 0;color:var(--color-fg-dim);font-size:.9rem;line-height:1.5}.pair-code{color:var(--color-fg);font-family:ui-monospace,monospace;font-size:1.05rem;letter-spacing:.15em;white-space:nowrap}.dev-signin{display:flex;gap:.5rem;margin-top:1rem}.dev-signin input{background:transparent;color:var(--color-fg);border:1px solid var(--card-border);border-radius:999px;padding:.45rem .9rem;font:inherit}.demo{border:1px solid var(--card-border);border-radius:24px;background:linear-gradient(180deg,#ffffff0f,#ffffff05);box-shadow:0 30px 80px #00000073;overflow:hidden}.demo-bar{display:flex;align-items:center;gap:.6rem;padding:.9rem 1.2rem;color:var(--color-fg-dim);font-size:.85rem;border-bottom:1px solid var(--card-border)}.demo-dot{width:8px;height:8px;border-radius:50%;background:var(--hl-b)}.demo-viewport{height:384px;overflow:hidden;-webkit-mask-image:linear-gradient(180deg,transparent,#000 28%,#000 72%,transparent);mask-image:linear-gradient(180deg,transparent,#000 28%,#000 72%,transparent)}.demo-track-lines{padding-top:144px;transition:transform .7s cubic-bezier(.22,1,.36,1)}.demo-line{height:96px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:0 1rem;opacity:.35;transition:opacity .5s ease}.demo-line.active{opacity:1}.demo-original{font-size:1.45rem;font-weight:600;letter-spacing:-.01em}.demo-line.active .demo-original{background:linear-gradient(90deg,var(--hl-a),var(--hl-b));-webkit-background-clip:text;background-clip:text;color:transparent}.demo-translation{margin-top:.3rem;font-size:.95rem;color:var(--color-fg-dim)}.section{max-width:1180px;margin:0 auto;padding:4rem 1.5rem}.section.narrow{max-width:760px}.section h2{font-size:clamp(1.7rem,3vw,2.4rem);letter-spacing:-.025em;margin:0 0 2rem}.card{border:1px solid var(--card-border);border-radius:20px;background:var(--card);padding:1.6rem}.card h3{margin:0 0 .5rem;font-size:1.15rem}.card p{margin:0;color:var(--color-fg-dim);line-height:1.6}.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.step-n{display:inline-flex;width:2rem;height:2rem;align-items:center;justify-content:center;margin-bottom:1rem;border-radius:50%;font-weight:700;color:var(--color-bg);background:linear-gradient(135deg,var(--hl-a),var(--hl-b))}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.faq{border-bottom:1px solid var(--card-border);padding:1.1rem 0}.faq summary{cursor:pointer;font-size:1.1rem;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:1rem}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--color-fg-dim);font-size:1.3rem;line-height:1}.faq[open] summary:after{content:"–"}.faq p{color:var(--color-fg-dim);line-height:1.65;margin:.8rem 0 0}.cta{text-align:center;padding-bottom:6rem}.cta h2{margin-bottom:1.5rem}.footer{display:flex;justify-content:space-between;gap:1rem;max-width:1180px;margin:0 auto;padding:2rem 1.5rem 3rem;color:var(--color-fg-dim);font-size:.9rem;border-top:1px solid var(--card-border)}.footer a{color:var(--color-fg-dim)}.prose h1{font-size:2.4rem;letter-spacing:-.03em;margin:1rem 0 .25rem}.prose h2{font-size:1.25rem;margin:2.2rem 0 .6rem}.prose p{color:var(--color-fg-dim);line-height:1.7;margin:.6rem 0}.prose a{color:var(--color-fg)}.muted{color:var(--color-fg-dim)}@media (max-width: 900px){.hero{grid-template-columns:1fr;gap:2.5rem;padding-top:1.5rem}.steps,.features{grid-template-columns:1fr}.nav-link{display:none}}@media (max-width: 640px){.pair-card{display:none}.demo-viewport{height:288px}.demo-track-lines{padding-top:96px}.demo-original{font-size:1.15rem}}@media (prefers-reduced-motion: reduce){.site{scroll-behavior:auto}.demo-track-lines,.demo-line{transition:none}}:root{--color-bg: #05070a;--color-fg: #f5f6f8;--color-fg-dim: #7a7f8a;--color-active: #ffffff;--color-accent: #1db954;--color-error: #ff5f56;--font-family: "Inter", "Segoe UI", system-ui, sans-serif;--font-size-active: clamp(1.75rem, 4vw, 3rem);--font-size-inactive: clamp(1.25rem, 3vw, 2.25rem);--line-gap: 1.5rem;--transition-fast: .12s ease-out}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--color-bg);color:var(--color-fg);font-family:var(--font-family);overflow:hidden;-webkit-user-select:none;user-select:none}