@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --bg:#f5f6fb;
  --surface:#ffffff;
  --surface-2:#f9f9fc;
  --text:#171827;
  --muted:#707287;
  --line:#e7e8ef;
  --primary:#6d4aff;
  --primary-dark:#5333d9;
  --danger:#c2394b;
  --success:#198754;
  --shadow:0 18px 55px rgba(25,24,45,.08);
  --radius:22px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 10% -10%,rgba(109,74,255,.12),transparent 28rem),
    radial-gradient(circle at 95% 10%,rgba(226,83,255,.09),transparent 24rem),
    var(--bg);
}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.55}
a{color:inherit}

.topbar{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 max(24px,calc((100vw - 1180px)/2));
  border-bottom:1px solid rgba(231,232,239,.85);
  background:rgba(255,255,255,.76);
  backdrop-filter:blur(18px);
  position:sticky;
  top:0;
  z-index:50;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:grid;place-items:center;
  color:#fff;font-weight:800;
  background:linear-gradient(135deg,#795cff,#5637e7);
  box-shadow:0 10px 24px rgba(109,74,255,.27);
}
.brand strong,.brand small{display:block}
.brand strong{font-size:15px}
.brand small{color:var(--muted);font-size:11px;margin-top:2px}
.api-badge{
  font-size:12px;font-weight:700;color:#4e3cc7;
  border:1px solid #ddd7ff;background:#f4f1ff;
  padding:8px 11px;border-radius:999px;
}

.container{max-width:1180px;margin:0 auto;padding:0 24px 42px}
.hero{
  display:grid;
  grid-template-columns:1fr auto;
  align-items:end;
  gap:28px;
  padding:58px 0 36px;
}
.eyebrow{
  display:inline-block;
  color:var(--primary);
  font-weight:800;
  font-size:12px;
  letter-spacing:.13em;
  margin-bottom:15px;
}
.hero h1{
  margin:0;
  max-width:780px;
  font-size:clamp(36px,5vw,64px);
  line-height:1.02;
  letter-spacing:-.045em;
}
.hero h1 span{
  background:linear-gradient(90deg,#6846ff,#d34be9);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero p{
  color:var(--muted);
  max-width:760px;
  margin:20px 0 0;
  font-size:16px;
  line-height:1.7;
}
.hero-card{
  min-width:250px;
  padding:18px;
  display:flex;
  align-items:center;
  gap:13px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.8);
  border-radius:18px;
  box-shadow:var(--shadow);
}
.hero-card strong,.hero-card small{display:block}
.hero-card strong{font-size:13px}
.hero-card small{font-size:11px;color:var(--muted);margin-top:4px}
.pulse{
  width:12px;height:12px;border-radius:50%;
  background:#39c985;box-shadow:0 0 0 7px rgba(57,201,133,.12);
}

.workspace{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:20px;
}
.panel{
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
}
.panel-heading,.results-heading{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin-bottom:22px;
}
.panel-heading>div,.results-heading>div{display:flex;align-items:center;gap:10px}
.panel h2,.results-heading h2{font-size:18px;margin:0}
.step{
  display:inline-grid;place-items:center;
  min-width:32px;height:32px;border-radius:10px;
  background:#f0edff;color:var(--primary);font-size:11px;font-weight:800;
}
.counter{
  font-size:12px;color:var(--muted);
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:999px;padding:7px 10px;
}
.counter b{color:var(--text)}

.field{display:block;margin-bottom:18px}
.field>span{
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;font-weight:700;margin-bottom:8px;color:#46485b;
}
.field>span small{font-weight:500;color:var(--muted)}
.field input,.field textarea,.field select{
  width:100%;
  border:1px solid #dedfe7;
  background:#fff;
  color:var(--text);
  border-radius:13px;
  outline:none;
  transition:.18s ease;
}
.field input,.field select{height:46px;padding:0 13px}
.field textarea{padding:13px 14px;resize:vertical;line-height:1.55}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:#9e8dff;
  box-shadow:0 0 0 4px rgba(109,74,255,.1);
}
.field>small{display:block;color:var(--muted);line-height:1.5;margin-top:7px;font-size:11px}
.field code{font-size:11px;background:#f1effb;padding:2px 5px;border-radius:5px}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}

.quick-actions{display:flex;gap:8px;flex-wrap:wrap}
.ghost-btn,.secondary-btn,.zip-btn,.primary-btn,.icon-btn,.download-btn{
  border:0;border-radius:12px;font-weight:700;
}
.ghost-btn{
  padding:9px 11px;background:#f4f4f8;color:#5b5d70;font-size:12px;
}
.danger-text{color:var(--danger)}
.range-field output{color:var(--primary);font-weight:800}
.range-field input[type=range]{
  appearance:none;height:6px;padding:0;border:0;background:#e8e5f8;border-radius:999px;
}
.range-field input[type=range]::-webkit-slider-thumb{
  appearance:none;width:20px;height:20px;border-radius:50%;
  background:var(--primary);border:4px solid #fff;box-shadow:0 1px 7px rgba(0,0,0,.22);
}
.range-labels{display:flex;justify-content:space-between;color:var(--muted);margin-top:6px}
.switch-row{
  display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center;
  position:relative;padding:15px;border:1px solid var(--line);border-radius:15px;margin-bottom:18px;
}
.switch-row strong,.switch-row small{display:block}
.switch-row strong{font-size:13px}
.switch-row small{font-size:11px;color:var(--muted);line-height:1.45;margin-top:4px;max-width:390px}
.switch-row input{position:absolute;opacity:0;pointer-events:none}
.switch{
  width:46px;height:26px;border-radius:999px;background:#d6d7df;position:relative;transition:.2s;
}
.switch:after{
  content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:#fff;
  top:3px;left:3px;box-shadow:0 2px 5px rgba(0,0,0,.18);transition:.2s;
}
.switch-row input:checked + .switch{background:var(--primary)}
.switch-row input:checked + .switch:after{transform:translateX(20px)}
.notice{
  display:flex;gap:10px;padding:12px 13px;border-radius:13px;
  background:#fff9e8;border:1px solid #f4e6b2;color:#78651f;font-size:11px;line-height:1.45;
}
.notice strong{flex:0 0 auto}

.generation-bar{
  margin:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;border-radius:18px;
  background:#191a2c;color:#fff;
  box-shadow:0 18px 44px rgba(25,26,44,.18);
}
.generation-bar strong,.generation-bar span{display:block}
.generation-bar strong{font-size:13px}
.generation-bar>div>span{color:#aeb0c4;font-size:11px;margin-top:4px}
.generation-actions{display:flex;gap:9px;flex:0 0 auto}
.secondary-btn{
  padding:12px 15px;background:#2b2d43;color:#e8e8ee;font-size:12px;
}
.primary-btn{
  padding:12px 18px;background:linear-gradient(135deg,#7557ff,#9b4cff);
  color:#fff;min-width:142px;box-shadow:0 9px 22px rgba(117,87,255,.25);
}

.progress-wrap{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:14px 16px;margin-bottom:20px;
}
.hidden{display:none!important}
.progress-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:9px}
.progress-meta b{color:var(--primary)}
.progress-track{height:7px;background:#ececf2;border-radius:999px;overflow:hidden}
.progress-track span{display:block;width:0;height:100%;background:linear-gradient(90deg,#6846ff,#cc4bed);transition:width .25s}

.results-section{
  background:rgba(255,255,255,.88);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
}
.results-heading{margin-bottom:18px}
.zip-btn{
  padding:11px 14px;background:#f0edff;color:#563adf;font-size:12px;
}
.empty-state{text-align:center;padding:54px 20px 62px;color:var(--muted)}
.empty-icon{
  margin:0 auto 14px;width:54px;height:54px;border-radius:17px;display:grid;place-items:center;
  background:#f1effb;color:var(--primary);font-size:24px;font-weight:700;
}
.empty-state h3{margin:0 0 8px;color:var(--text);font-size:16px}
.empty-state p{margin:0;font-size:12px}

.results-list{display:grid;gap:10px}
.audio-row{
  display:grid;
  grid-template-columns:48px minmax(160px,1fr) minmax(240px,1.2fr) auto;
  align-items:center;
  gap:12px;
  padding:12px;
  border:1px solid var(--line);
  border-radius:15px;
  background:#fff;
}
.audio-num{
  width:38px;height:38px;border-radius:11px;background:#f5f3ff;color:var(--primary);
  display:grid;place-items:center;font-size:11px;font-weight:800;
}
.audio-info{min-width:0}
.audio-info strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}
.audio-info small{display:block;color:var(--muted);font-size:10px;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.audio-player audio{width:100%;height:36px}
.row-actions{display:flex;gap:7px}
.icon-btn,.download-btn{
  padding:9px 10px;background:#f3f3f7;color:#535569;font-size:11px;text-decoration:none;
}
.download-btn{background:#f0edff;color:#563adf}
.audio-row.is-generating{opacity:.72}
.audio-row.is-error{border-color:#f1c4ca;background:#fffafb}
.status-error{color:var(--danger)!important}
.status-success{color:var(--success)!important}

.footer{
  display:flex;justify-content:space-between;gap:16px;color:var(--muted);
  font-size:11px;padding:22px 4px 0;
}
.footer a{text-decoration:none;color:var(--primary)}

.toast{
  position:fixed;right:20px;bottom:20px;z-index:100;
  max-width:min(420px,calc(100vw - 40px));
  padding:12px 15px;border-radius:12px;background:#1b1c2d;color:#fff;
  font-size:12px;box-shadow:0 14px 35px rgba(0,0,0,.2);
  transform:translateY(20px);opacity:0;pointer-events:none;transition:.2s;
}
.toast.show{transform:translateY(0);opacity:1}
.toast.error{background:#8f2634}

@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:40px}
  .hero-card{display:none}
  .workspace{grid-template-columns:1fr}
  .audio-row{grid-template-columns:42px 1fr auto}
  .audio-player{grid-column:2/-1}
}
@media(max-width:620px){
  .topbar{height:66px;padding:0 16px}
  .api-badge{display:none}
  .container{padding:0 14px 30px}
  .hero{padding:32px 4px 24px}
  .hero h1{font-size:39px}
  .hero p{font-size:14px}
  .panel,.results-section{padding:17px;border-radius:18px}
  .field-grid{grid-template-columns:1fr}
  .voice-control{grid-template-columns:1fr}
  .voice-preview-btn{width:100%}
  .generation-bar{align-items:stretch;flex-direction:column}
  .generation-actions{display:grid;grid-template-columns:1fr 1fr}
  .primary-btn,.secondary-btn{width:100%}
  .results-heading{align-items:flex-start;flex-direction:column}
  .zip-btn{width:100%}
  .audio-row{grid-template-columns:38px 1fr}
  .audio-player{grid-column:1/-1}
  .row-actions{grid-column:1/-1}
  .row-actions>*{flex:1;text-align:center}
  .footer{flex-direction:column}
}

.voice-control{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center}
.voice-field select{margin:0}
.voice-preview-btn{
  height:46px;border:1px solid #ddd7ff;border-radius:13px;padding:0 13px;
  background:#f4f1ff;color:#563adf;font-size:11px;font-weight:800;white-space:nowrap;
}
.voice-preview-btn:hover{background:#ece8ff}
.voice-preview-status{font-size:10px;line-height:1.45;color:var(--muted);margin-top:7px}
.voice-preview-audio{display:block;width:100%;height:36px;margin-top:9px}

/* v1.2 */
.mode-tabs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0 0 20px;padding:7px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.78);box-shadow:0 10px 30px rgba(25,24,45,.05)}
.mode-tab{min-height:62px;border:0;border-radius:13px;background:transparent;color:var(--muted);display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:4px;padding:11px 15px;text-align:left;transition:.18s}
.mode-tab b{font-size:13px;color:#525468}.mode-tab small{font-size:10px}.mode-tab.active{background:#fff;box-shadow:0 7px 22px rgba(29,28,48,.09)}.mode-tab.active b{color:var(--primary)}
.long-stats{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:-7px 0 15px;color:var(--muted);font-size:10px}.long-stats span:last-child{background:#f2f0ff;color:#5c43d8;padding:6px 9px;border-radius:999px;font-weight:700}
.long-result-card{border:1px solid var(--line);border-radius:18px;background:#fff;padding:17px;display:grid;grid-template-columns:48px minmax(180px,.75fr) minmax(260px,1.25fr) auto;gap:14px;align-items:center}
.long-result-icon{width:42px;height:42px;border-radius:13px;background:#f1effb;color:var(--primary);display:grid;place-items:center;font-size:20px;font-weight:800}
.long-result-info{min-width:0}.long-result-info span,.long-result-info strong,.long-result-info small{display:block}.long-result-info span{font-size:10px;font-weight:800;margin-bottom:4px}.long-result-info strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.long-result-info small{font-size:10px;color:var(--muted);margin-top:4px}
.long-result-player audio{width:100%;height:38px}.long-result-actions{display:flex;gap:8px}.long-result-actions a{display:inline-flex;align-items:center;justify-content:center}
.long-loading{border:1px solid var(--line);border-radius:18px;background:#fff;padding:22px;display:flex;align-items:center;justify-content:center;gap:14px;color:var(--muted)}.long-loading strong,.long-loading small{display:block}.long-loading strong{font-size:13px;color:var(--text)}.long-loading small{font-size:10px;margin-top:4px}
.loading-dot{width:12px;height:12px;border-radius:50%;background:var(--primary);animation:voicePulse 1.2s infinite}@keyframes voicePulse{0%{box-shadow:0 0 0 0 rgba(109,74,255,.35)}70%{box-shadow:0 0 0 12px rgba(109,74,255,0)}100%{box-shadow:0 0 0 0 rgba(109,74,255,0)}}
@media(max-width:900px){.long-result-card{grid-template-columns:44px 1fr auto}.long-result-player{grid-column:2/-1}}
@media(max-width:620px){.mode-tabs{grid-template-columns:1fr;padding:6px}.mode-tab{min-height:54px}.long-stats{align-items:flex-start;flex-direction:column}.long-result-card{grid-template-columns:42px 1fr}.long-result-player,.long-result-actions{grid-column:1/-1}.long-result-actions>*{flex:1;text-align:center}}


/* v1.3 - intensity */
#intensityHelp{
  min-height:30px;
  margin-top:7px;
  color:var(--muted);
  line-height:1.45;
}