*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#09090f;--bg2:#0f0f1a;--glass:rgba(255,255,255,0.04);--glass2:rgba(255,255,255,0.07);
  --border:rgba(255,255,255,0.08);--text:#f0f0f8;--muted:#7a7a9a;
  --purple:#a855f7;--pink:#ec4899;--cyan:#06b6d4;
  --accent:linear-gradient(135deg,#a855f7,#ec4899);
  --ease:cubic-bezier(.4,0,.2,1);--ease-spring:cubic-bezier(.34,1.56,.64,1);
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Space Grotesk',sans-serif;min-height:100vh;overflow-x:hidden;line-height:1.6}

canvas#bgCanvas{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5}
.page-wrap{position:relative;z-index:1;max-width:860px;margin:0 auto;padding:0 20px 80px}

.top-nav{display:flex;align-items:center;gap:14px;padding:20px 0 0;margin-bottom:48px}
.nav-brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text);font-weight:700;font-size:1.05rem;letter-spacing:-.3px}
.nav-brand-icon{width:32px;height:32px;border-radius:8px;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:1rem}
.nav-badge{background:rgba(168,85,247,.15);border:1px solid rgba(168,85,247,.3);color:var(--purple);font-size:.72rem;font-weight:600;padding:3px 10px;border-radius:20px;letter-spacing:.5px;text-transform:uppercase}

.hero{text-align:center;padding:0 0 56px;position:relative}
.hero::before{content:'';position:absolute;top:-40px;left:50%;transform:translateX(-50%);width:500px;height:300px;background:radial-gradient(ellipse,rgba(168,85,247,.12) 0%,transparent 70%);pointer-events:none}
.hero-label{display:inline-flex;align-items:center;gap:8px;background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.2);color:var(--purple);font-size:.78rem;font-weight:600;padding:5px 14px;border-radius:20px;letter-spacing:.5px;text-transform:uppercase;margin-bottom:20px}
.hero-label span{width:6px;height:6px;background:var(--purple);border-radius:50%;animation:pulse 1.5s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}
h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;letter-spacing:-.5px;line-height:1.15;margin-bottom:16px}
h1 em{font-style:normal;background:var(--accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{color:var(--muted);font-size:1.05rem;max-width:520px;margin:0 auto 28px}
.hero-features{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:4px}
.feat-pill{display:inline-flex;align-items:center;gap:6px;background:var(--glass);border:1px solid var(--border);color:var(--muted);font-size:.8rem;font-weight:500;padding:6px 13px;border-radius:20px}
.feat-pill svg{color:var(--purple)}

.panel{background:var(--glass);border:1px solid var(--border);border-radius:20px;padding:28px}

.field-label{display:block;font-size:.82rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}
.prompt-wrap{position:relative}
textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:12px;color:var(--text);font-family:inherit;font-size:.95rem;padding:14px 16px;resize:vertical;min-height:120px;outline:none;transition:border-color .2s}
textarea:focus{border-color:rgba(168,85,247,.4)}
textarea::placeholder{color:var(--muted)}
.char-count{position:absolute;bottom:10px;right:12px;font-size:.72rem;color:var(--muted)}
.char-count.warn{color:#f87171}

.style-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.style-tag{background:rgba(168,85,247,.08);border:1px solid rgba(168,85,247,.2);color:var(--purple);font-size:.75rem;padding:4px 12px;border-radius:16px;cursor:pointer;transition:all .2s;user-select:none}
.style-tag:hover{background:rgba(168,85,247,.18);border-color:rgba(168,85,247,.4)}

.duration-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:4px}
.dur-opt input[type=radio]{display:none}
.dur-opt label{display:flex;flex-direction:column;align-items:center;gap:4px;background:var(--glass);border:1px solid var(--border);border-radius:12px;padding:14px 10px;cursor:pointer;transition:all .2s;text-align:center}
.dur-opt label .dur-icon{font-size:1.4rem}
.dur-opt label .dur-name{font-size:.85rem;font-weight:600;color:var(--text)}
.dur-opt label .dur-time{font-size:.72rem;color:var(--muted)}
.dur-opt input:checked + label{background:rgba(168,85,247,.12);border-color:rgba(168,85,247,.4);box-shadow:0 0 0 1px rgba(168,85,247,.3)}

.btn-row{display:flex;gap:10px;margin-top:20px}
.btn-generate{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:12px;background:var(--accent);border:none;color:#fff;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .25s var(--ease-spring);font-family:inherit}
.btn-generate:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 24px rgba(168,85,247,.35)}
.btn-generate:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn-clear{padding:14px 18px;border-radius:12px;background:var(--glass);border:1px solid var(--border);color:var(--muted);font-size:.9rem;cursor:pointer;transition:all .2s;font-family:inherit}
.btn-clear:hover{background:var(--glass2);color:var(--text)}

.alert{display:none;align-items:flex-start;gap:10px;padding:14px 16px;border-radius:12px;margin-top:18px;font-size:.9rem;font-weight:500}
.alert.show{display:flex}
.alert.error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.2);color:#fca5a5}
.alert.warn{background:rgba(251,191,36,.1);border:1px solid rgba(251,191,36,.2);color:#fde68a}
.alert.info{background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.2);color:#d8b4fe}

.player-wrap{margin-top:24px;display:none}
.player-wrap.show{display:block}
.player-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.player-icon{width:44px;height:44px;border-radius:12px;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}
.player-meta h4{font-size:.95rem;font-weight:700;color:var(--text);margin-bottom:2px}
.player-meta p{font-size:.78rem;color:var(--muted)}
.waveform-bars{display:flex;align-items:center;gap:3px;height:32px;margin-bottom:16px}
.bar{width:4px;border-radius:2px;background:var(--purple);opacity:.6;animation:waveAnim 1s ease-in-out infinite}
.bar:nth-child(1){animation-delay:0s;height:40%}
.bar:nth-child(2){animation-delay:.1s;height:70%}
.bar:nth-child(3){animation-delay:.2s;height:90%}
.bar:nth-child(4){animation-delay:.3s;height:60%}
.bar:nth-child(5){animation-delay:.4s;height:80%}
.bar:nth-child(6){animation-delay:.5s;height:50%}
.bar:nth-child(7){animation-delay:.6s;height:100%}
.bar:nth-child(8){animation-delay:.7s;height:65%}
.bar:nth-child(9){animation-delay:.8s;height:85%}
.bar:nth-child(10){animation-delay:.9s;height:45%}
@keyframes waveAnim{0%,100%{transform:scaleY(1)}50%{transform:scaleY(1.6)}}
audio{width:100%;border-radius:10px;outline:none;margin-bottom:16px}
audio::-webkit-media-controls-panel{background:rgba(168,85,247,.1)}
.btn-download{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:10px;background:rgba(168,85,247,.15);border:1px solid rgba(168,85,247,.3);color:var(--purple);font-size:.88rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;text-decoration:none}
.btn-download:hover{background:rgba(168,85,247,.25);border-color:rgba(168,85,247,.5);transform:translateY(-1px)}

.status-msg{font-size:.85rem;color:var(--purple);margin-top:10px;min-height:18px;text-align:center;font-weight:500}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.info-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-top:32px}
.info-card{background:var(--glass);border:1px solid var(--border);border-radius:16px;padding:20px;transition:border-color .2s}
.info-card:hover{border-color:rgba(168,85,247,.2)}
.info-card-icon{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-size:1.1rem}
.info-card h4{font-size:.9rem;font-weight:700;margin-bottom:4px}
.info-card p{font-size:.8rem;color:var(--muted)}

footer{text-align:center;padding:40px 0 20px;border-top:1px solid var(--border);margin-top:60px;color:var(--muted);font-size:.82rem}
footer a{color:var(--purple);text-decoration:none}

@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.fade-up{animation:fadeUp .5s var(--ease) both}

@media(max-width:600px){
  .duration-grid{grid-template-columns:repeat(3,1fr)}
  .btn-row{flex-direction:column}
  h1{font-size:1.9rem}
}