:root{
  --bg:#0e0e10;
  --bg-soft:#18181b;
  --purple:#9146FF;
  --purple-soft:#772ce8;
  --text:#efeff1;
  --text-dim:#adadb8;
  --border:#26262c;
  --red:#eb4b4b;
  --green:#3fce6e;
  --sc-orange:#ff5500;
}
html.light{ 
  --bg:#f5f5f7;
  --bg-soft:#ffffff;
  --text:#111113;
  --text-dim:#6e6e80;
  --border:#dddde0;
}
*{box-sizing:border-box; margin:0; padding:0;}
body{
  background:var(--bg);
  color:var(--text);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
  transition: background .2s, color .2s;
}
.glow{
  position:fixed; top:50%; left:50%;
  width:900px; height:900px;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(145,70,255,0.12) 0%, rgba(145,70,255,0) 65%);
  pointer-events:none; z-index:0;
}
.sidebar{
  position:fixed; top:0; left:0; height:100vh; width:90px;
  display:flex; flex-direction:column; align-items:center;
  padding:24px 0; border-right:1px solid var(--border); z-index:10;
  background:var(--bg);
}
.sidebar .top,.sidebar .bottom{display:flex; flex-direction:column; align-items:center; gap:28px;}
.sidebar .spacer{flex:1;}
.nav-item{display:flex; flex-direction:column; align-items:center; gap:6px; color:var(--text-dim); font-size:10px; letter-spacing:0.04em; cursor:pointer; transition:color .15s ease;}
.nav-item:hover{color:var(--text);}
.nav-item.active{color:var(--purple);}
.nav-item svg{width:20px; height:20px;}
.logo-mark{width:34px; height:34px; display:flex; align-items:center; justify-content:center; border-radius:8px; background:linear-gradient(135deg, var(--purple), var(--purple-soft)); margin-bottom:8px;}
.topbar{position:fixed; top:0; left:90px; right:0; height:64px; display:flex; align-items:center; justify-content:space-between; padding:0 32px; z-index:10;}
.topbar .services{display:flex; align-items:center; gap:10px; color:var(--text-dim); font-size:12px; letter-spacing:0.08em;}
.topbar .services svg{width:14px;height:14px;}
.topbar .scroll-hint{width:34px; height:34px; border:1px solid var(--border); border-radius:50%; display:flex; align-items:center; justify-content:center; color:var(--text-dim);}
main{margin-left:90px; min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:40px 24px; position:relative; z-index:1;}
.mascot{width:120px; height:120px; margin-bottom:14px; position:relative;}
.tagline{color:var(--text-dim); font-size:13px; letter-spacing:0.12em; text-transform:lowercase; margin-bottom:30px;}
.tagline .accent{color:var(--purple);}
.service-switch{display:flex; gap:8px; margin-bottom:14px; width:100%; max-width:720px; justify-content:center;}
.service-pill{
  display:flex; align-items:center; gap:8px;
  padding:10px 20px; border-radius:9px;
  border:1px solid var(--border); background:var(--bg-soft);
  color:var(--text-dim); font-size:13px; font-family:inherit;
  letter-spacing:0.03em; cursor:pointer;
  transition:all .15s ease;
}
.service-pill svg{width:16px; height:16px;}
.service-pill:hover{border-color:#3a3a42; color:var(--text);}
.service-pill.active.twitch{
  background:rgba(145,70,255,0.12); border-color:var(--purple-soft); color:#d8c4ff;
}
.service-pill.active.soundcloud{
  background:rgba(255,85,0,0.12); border-color:var(--sc-orange); color:#ffb380;
}
.input-row{display:flex; width:100%; max-width:720px; gap:10px;}
.input-wrap{flex:1; display:flex; align-items:center; gap:10px; background:var(--bg-soft); border:1px solid var(--border); border-radius:10px; padding:0 18px; height:52px; transition:border-color .15s ease, box-shadow .15s ease;}
.input-wrap:focus-within{border-color:var(--purple-soft); box-shadow:0 0 0 3px rgba(145,70,255,0.15);}
.input-wrap.sc-mode:focus-within{border-color:var(--sc-orange); box-shadow:0 0 0 3px rgba(255,85,0,0.15);}
.input-wrap svg{width:16px; height:16px; color:var(--text-dim); flex-shrink:0;}
.input-wrap input{flex:1; background:transparent; border:none; outline:none; color:var(--text); font-family:inherit; font-size:14px;}
.input-wrap input::placeholder{color:#5c5c66;}
.clear-btn{background:none; border:none; color:var(--text-dim); cursor:pointer; display:flex; align-items:center; flex-shrink:0;}
.clear-btn svg{width:14px;height:14px;}
.go-btn{width:52px; height:52px; background:var(--purple); border:none; border-radius:10px; color:#fff; display:flex; align-items:center; justify-content:center; cursor:pointer; transition:background .15s ease, transform .1s ease; flex-shrink:0;}
.go-btn.sc-mode{background:var(--sc-orange);}
.go-btn:hover{filter:brightness(1.1);}
.go-btn:active{transform:scale(0.95);}
.go-btn svg{width:18px; height:18px;}
.go-btn.loading svg{animation:spin 0.8s linear infinite;}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.go-btn:disabled{opacity:0.6; cursor:default;}
.options-row{display:flex; width:100%; max-width:720px; margin-top:14px; gap:10px; align-items:center;}
.pill-group{display:flex; gap:8px; flex-wrap:wrap;}
.pill{display:flex; align-items:center; gap:7px; padding:9px 16px; border-radius:8px; border:1px solid var(--border); background:var(--bg-soft); color:var(--text-dim); font-size:12.5px; font-family:inherit; letter-spacing:0.03em; cursor:pointer; transition:all .15s ease;}
.pill svg{width:14px;height:14px;}
.pill.active{background:rgba(145,70,255,0.12); border-color:var(--purple-soft); color:#d8c4ff;}
.pill:hover:not(.active){border-color:#3a3a42; color:var(--text);}
.options-row .spacer{flex:1;}
.paste-btn{display:flex; align-items:center; gap:8px; padding:9px 16px; background:var(--bg-soft); border:1px solid var(--border); border-radius:8px; color:var(--text-dim); font-size:12.5px; font-family:inherit; cursor:pointer; transition:all .15s ease;}
.paste-btn svg{width:14px;height:14px;}
.paste-btn:hover{border-color:#3a3a42; color:var(--text);}
.examples{margin-top:24px; display:flex; gap:8px; flex-wrap:wrap; justify-content:center; max-width:720px;}
.example-chip{font-size:11px; color:#5c5c66; padding:5px 10px; border:1px solid var(--border); border-radius:6px; letter-spacing:0.04em;}
.example-chip b{color:var(--text-dim); font-weight:600;}
.result{ width:100%; max-width:720px; margin-top:22px; display:none; }
.result.show{display:block; animation:fadeIn .25s ease;}
@keyframes fadeIn{from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);}}
.status-msg{font-size:12.5px; padding:12px 16px; border-radius:8px; border:1px solid var(--border); background:var(--bg-soft); color:var(--text-dim); display:flex; align-items:center; gap:10px;}
.status-msg.error{border-color:rgba(235,75,75,0.4); color:#ffb3b3; background:rgba(235,75,75,0.08);}
.status-msg svg{width:15px; height:15px; flex-shrink:0;}
.preview-card{ display:flex; gap:14px; background:var(--bg-soft); border:1px solid var(--border); border-radius:10px; padding:14px; margin-bottom:12px; }
.preview-thumb{ width:120px; height:120px; border-radius:6px; object-fit:cover; background:#000; flex-shrink:0; }
.preview-thumb.rect{ height:68px; }
.preview-info{flex:1; min-width:0; display:flex; flex-direction:column; gap:4px; justify-content:center;}
.preview-title{font-size:13px; color:var(--text); white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.preview-meta{font-size:11px; color:var(--text-dim);}
.quality-list{display:flex; flex-direction:column; gap:8px;}
.quality-row{ display:flex; align-items:center; justify-content:space-between; background:var(--bg-soft); border:1px solid var(--border); border-radius:8px; padding:11px 16px; }
.quality-row .label{font-size:13px; color:var(--text);}
.dl-btn{ display:flex; align-items:center; gap:7px; background:var(--purple); border:none; color:#fff; padding:8px 14px; border-radius:7px; font-size:12px; font-family:inherit; cursor:pointer; transition:background .15s ease; text-decoration:none; }
.dl-btn:hover{filter:brightness(1.1);}
.dl-btn.sc{ background:var(--sc-orange); }
.dl-btn svg{width:13px;height:13px;}
.hint-box{ margin-top:10px; font-size:11px; color:#5c5c66; line-height:1.6; padding:10px 14px; border:1px dashed var(--border); border-radius:8px; }
.hint-box code{ display:inline-block; margin-top:4px; color:var(--text-dim); background:#000; padding:2px 6px; border-radius:4px; }
.trim-box{ background:var(--bg-soft); border:1px solid var(--border); border-radius:10px; padding:16px 18px; margin-bottom:12px; }
.trim-row{ display:flex; align-items:center; gap:10px; margin-bottom:12px; flex-wrap:wrap; }
.trim-row label{ font-size:12px; color:var(--text-dim); white-space:nowrap; }
.quality-select{ background:var(--bg); color:var(--text); border:1px solid var(--border); border-radius:7px; padding:7px 10px; font-family:inherit; font-size:12.5px; cursor:pointer; }
.trim-desc{ font-size:11.5px; color:var(--text-dim); line-height:1.6; margin-bottom:16px; }
.slider-wrap{ position:relative; width:100%; height:44px; margin-bottom:30px; padding:0 2px; }
.slider-loading{ font-size:11.5px; color:var(--text-dim); padding:10px 0; }
.slider-track{ position:absolute; top:18px; left:0; right:0; height:8px; background:#2c2c33; border-radius:5px; }
.slider-range{ position:absolute; top:18px; height:8px; background:var(--purple); border-radius:5px; }
.slider-thumb{ position:absolute; top:9px; width:24px; height:24px; border-radius:7px; cursor:grab; touch-action:none; box-shadow:0 1px 4px rgba(0,0,0,0.5); border:2px solid var(--bg-soft); }
.slider-thumb:active{ cursor:grabbing; }
.slider-thumb.start{ background:var(--purple); z-index:3; }
.slider-thumb.end{ background:#efeff1; z-index:2; }
.slider-tag{ position:absolute; top:32px; transform:translateX(-50%); background:#000; color:#fff; font-size:10.5px; letter-spacing:0.02em; padding:3px 7px; border-radius:5px; white-space:nowrap; pointer-events:none; }
.slider-tag input{ background:transparent; border:none; color:#fff; font-family:inherit; font-size:10.5px; width:74px; text-align:center; pointer-events:auto; outline:none; }
.slider-tag.start{ border:1px solid var(--purple-soft); }
.dl-actions{ display:flex; gap:10px; flex-wrap:wrap; }
.dl-actions .dl-btn{ padding:10px 16px; font-size:12.5px; }
.dl-btn.secondary{ background:var(--bg); border:1px solid var(--border); color:var(--text); }
.dl-btn.secondary:hover{ border-color:#3a3a42; background:#1f1f24; }
.dl-btn:disabled{ opacity:0.5; cursor:default; pointer-events:none; }
.progress-box{ margin-top:12px; display:none; }
.progress-box.show{ display:block; }
.progress-track{ width:100%; height:6px; background:#2c2c33; border-radius:4px; overflow:hidden; }
.progress-fill{ height:100%; width:0%; background:var(--purple); transition:width .15s ease; }
.progress-fill.sc{ background:var(--sc-orange); }
.progress-label{ font-size:11px; color:var(--text-dim); margin-top:6px; }
.sc-playlist{ display:flex; flex-direction:column; gap:8px; }
.sc-track-row{
  display:flex; align-items:center; gap:12px;
  background:var(--bg-soft); border:1px solid var(--border);
  border-radius:8px; padding:10px 14px;
  transition:border-color .15s;
}
.sc-track-row:hover{ border-color:#3a3a42; }
.sc-track-num{ font-size:12px; color:var(--text-dim); width:24px; text-align:center; flex-shrink:0; }
.sc-track-art{ width:44px; height:44px; border-radius:6px; object-fit:cover; background:#000; flex-shrink:0; }
.sc-track-info{ flex:1; min-width:0; }
.sc-track-title{ font-size:12.5px; color:var(--text); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sc-track-artist{ font-size:11px; color:var(--text-dim); margin-top:2px; }
.sc-track-dur{ font-size:11px; color:var(--text-dim); margin-right:10px; flex-shrink:0; }
footer{position:fixed; bottom:0; left:90px; right:0; text-align:center; padding:18px 0; color:#4b4b54; font-size:11px; letter-spacing:0.05em; z-index:5;}
.settings-overlay{
  position:fixed; inset:0; background:rgba(0,0,0,0.5);
  z-index:100; opacity:0; pointer-events:none;
  transition:opacity .25s ease;
}
.settings-overlay.open{ opacity:1; pointer-events:all; }
.settings-panel{
  position:fixed; top:0; right:0; height:100vh; width:360px;
  background:var(--bg-soft); border-left:1px solid var(--border);
  z-index:101; display:flex; flex-direction:column;
  transform:translateX(100%); transition:transform .25s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.settings-panel.open{ transform:translateX(0); }
.settings-header{
  display:flex; align-items:center; justify-content:space-between;
  padding:24px 24px 20px; border-bottom:1px solid var(--border);
  flex-shrink:0;
}
.settings-title{ font-size:15px; color:var(--text); letter-spacing:0.04em; }
.settings-close{ background:none; border:none; color:var(--text-dim); cursor:pointer; display:flex; align-items:center; padding:4px; border-radius:6px; transition:color .15s; }
.settings-close:hover{ color:var(--text); }
.settings-close svg{ width:18px; height:18px; }
.settings-body{ padding:24px; display:flex; flex-direction:column; gap:28px; }
.settings-section-title{
  font-size:10px; letter-spacing:0.12em; text-transform:uppercase;
  color:var(--text-dim); margin-bottom:12px;
}
.radio-group{ display:flex; flex-direction:column; gap:8px; }
.radio-option{
  display:flex; align-items:center; gap:12px;
  padding:12px 14px; border-radius:9px;
  border:1px solid var(--border); background:var(--bg);
  cursor:pointer; transition:border-color .15s, background .15s;
}
.radio-option:hover{ border-color:var(--purple-soft); }
.radio-option.selected{ border-color:var(--purple); background:rgba(145,70,255,0.08); }
.radio-dot{
  width:16px; height:16px; border-radius:50%;
  border:2px solid var(--border); flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  transition:border-color .15s;
}
.radio-option.selected .radio-dot{ border-color:var(--purple); }
.radio-dot-inner{
  width:8px; height:8px; border-radius:50%;
  background:var(--purple); display:none;
}
.radio-option.selected .radio-dot-inner{ display:block; }
.radio-label{ flex:1; }
.radio-label-main{ font-size:13px; color:var(--text); }
.radio-label-sub{ font-size:11px; color:var(--text-dim); margin-top:2px; }
.proxy-input-wrap{
  margin-top:8px; display:none;
  flex-direction:column; gap:8px;
}
.proxy-input-wrap.show{ display:flex; }
.proxy-input{
  width:100%; background:var(--bg); border:1px solid var(--border);
  border-radius:8px; padding:10px 14px; color:var(--text);
  font-family:inherit; font-size:12px; outline:none;
  transition:border-color .15s;
}
.proxy-input:focus{ border-color:var(--purple-soft); }
.proxy-save-btn{
  align-self:flex-end; background:var(--purple); border:none;
  color:#fff; padding:8px 18px; border-radius:7px;
  font-family:inherit; font-size:12px; cursor:pointer;
  transition:background .15s;
}
.proxy-save-btn:hover{ background:var(--purple-soft); }
.theme-group{ display:flex; gap:8px; }
.theme-btn{
  flex:1; display:flex; flex-direction:column; align-items:center; gap:8px;
  padding:12px 8px; border-radius:9px; border:1px solid var(--border);
  background:var(--bg); cursor:pointer; transition:border-color .15s, background .15s;
  color:var(--text-dim); font-size:11px; font-family:inherit;
}
.theme-btn:hover{ border-color:var(--purple-soft); }
.theme-btn.selected{ border-color:var(--purple); background:rgba(145,70,255,0.08); color:var(--purple); }
.theme-btn svg{ width:20px; height:20px; }
.lang-group{ display:flex; gap:8px; }
.lang-btn{
  flex:1; padding:10px; border-radius:9px; border:1px solid var(--border);
  background:var(--bg); cursor:pointer; transition:border-color .15s, background .15s;
  color:var(--text-dim); font-size:13px; font-family:inherit; letter-spacing:0.04em;
}
.lang-btn:hover{ border-color:var(--purple-soft); }
.lang-btn.selected{ border-color:var(--purple); background:rgba(145,70,255,0.08); color:var(--purple); }
.format-selector{ margin-bottom:16px; }
.format-selector-title{ font-size:12px; color:var(--text-dim); margin-bottom:10px; letter-spacing:0.04em; }
.format-options{ display:flex; gap:8px; flex-wrap:wrap; }
.format-option{
  display:flex; align-items:center; gap:8px;
  padding:10px 14px; border-radius:8px;
  border:1px solid var(--border); background:var(--bg-soft);
  color:var(--text-dim); font-size:12px; font-family:inherit;
  cursor:pointer; transition:all .15s ease;
  position:relative;
}
.format-option:hover{ border-color:#3a3a42; color:var(--text); }
.format-option.selected{
  background:rgba(255,85,0,0.12); border-color:var(--sc-orange); color:#ffb380;
}
.format-option .format-name{ font-weight:600; color:var(--text); }
.format-option .format-bitrate{ font-size:10px; color:var(--text-dim); margin-top:2px; }
.format-option .format-badge{
  position:absolute; top:-6px; right:-6px;
  background:var(--sc-orange); color:#fff;
  font-size:9px; padding:2px 6px; border-radius:4px;
  font-weight:600; letter-spacing:0.04em;
}
.format-option .format-icon{ width:16px; height:16px; flex-shrink:0; }
@media (max-width: 640px){
  .sidebar{width:64px;}
  .sidebar .nav-item{font-size:8px;}
  .topbar{left:64px; padding:0 16px;}
  main{margin-left:64px; padding:24px 16px;}
  footer{left:64px;}
  .preview-card{flex-direction:column;}
  .preview-thumb{width:100%; height:180px;}
  .settings-panel{width:100%;}
  .service-pill{padding:9px 14px; font-size:12px;}
}