*{box-sizing:border-box;margin:0;padding:0}
body{font-family:sans-serif;background:#1a1a2e;color:#eee;min-height:100vh}
header{background:#16213e;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #2a2a4a}
header h1{color:#e94560;font-size:22px}
.lang-switch{display:flex;flex-direction:column;gap:4px}
.lang-btn{background:none;border:1px solid #444;color:#aaa;padding:4px 12px;border-radius:6px;cursor:pointer;font-size:13px}
.lang-btn.active{border-color:#e94560;color:#e94560}

/* Tabs */
.tabs{display:flex;gap:0;border-bottom:1px solid #2a2a4a;background:#16213e;padding:0 32px;overflow-x:auto}
.tabs::-webkit-scrollbar{height:3px}
.tabs::-webkit-scrollbar-thumb{background:#2a2a4a}
.tab{padding:14px 20px;cursor:pointer;color:#888;font-size:13px;border-bottom:2px solid transparent;transition:all 0.2s;white-space:nowrap;flex-shrink:0}
.tab.active{color:#e94560;border-bottom-color:#e94560}
.tab:hover{color:#eee}

/* Panel description */
.panel-desc{background:#16213e;border-left:3px solid #e94560;border-radius:0 8px 8px 0;padding:12px 16px;margin-bottom:20px;font-size:13px;color:#aaa;line-height:1.5}
.panel-desc strong{color:#ccc}

/* Content */
.content{max-width:720px;margin:32px auto;padding:0 24px}
.panel{display:none}
.panel.active{display:block}
.card{background:#16213e;border-radius:12px;padding:28px;margin-bottom:20px}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;color:#aaa;margin-bottom:6px}
.field .hint{font-size:11px;color:#666;margin-top:4px}

/* Inputs */
input[type=file]{width:100%;background:#0f3460;border:1px solid #333;border-radius:8px;padding:10px;color:#eee;font-size:13px}
input[type=text],input[type=number],textarea,select{width:100%;background:#0f3460;border:1px solid #333;border-radius:8px;padding:10px;color:#eee;font-size:13px}
textarea{resize:vertical;min-height:70px;font-family:sans-serif}
select option{background:#0f3460}

/* Range */
.range-wrap{display:flex;align-items:center;gap:12px}
input[type=range]{flex:1;accent-color:#e94560}
.range-val{min-width:40px;text-align:right;font-size:13px;color:#e94560}

/* Toggle */
.toggle-wrap{display:flex;align-items:center;gap:10px}
.toggle{position:relative;width:40px;height:22px}
.toggle input{opacity:0;width:0;height:0}
.slider-toggle{position:absolute;inset:0;background:#333;border-radius:11px;cursor:pointer;transition:0.2s}
.slider-toggle:before{content:'';position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:0.2s}
input:checked+.slider-toggle{background:#e94560}
input:checked+.slider-toggle:before{transform:translateX(18px)}

/* Stems */
.stems-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stem-check{display:flex;align-items:center;gap:8px;font-size:13px;color:#ccc;cursor:pointer}
.stem-check input{accent-color:#e94560;width:16px;height:16px}

/* Button */
.btn{width:100%;padding:14px;background:#e94560;border:none;border-radius:8px;color:#fff;font-size:15px;cursor:pointer;transition:background 0.2s;margin-top:8px}
.btn:hover{background:#c73652}
.btn:disabled{background:#444;cursor:not-allowed}

/* Progress */
.progress-wrap{margin-top:20px;display:none}
.progress-step{font-size:13px;color:#aaa;margin-bottom:8px}
progress{width:100%;height:8px;border-radius:4px;border:none}
progress::-webkit-progress-bar{background:#0f3460;border-radius:4px}
progress::-webkit-progress-value{background:#e94560;border-radius:4px;transition:width 0.3s}

/* Result */
.result-wrap{margin-top:16px;display:none;background:#0f3460;border-radius:8px;padding:16px}
.result-wrap a{color:#e94560;text-decoration:none;font-size:14px;display:block;margin:4px 0}
.result-wrap a:hover{text-decoration:underline}

/* Error */
.error-msg{display:none;margin-top:12px;background:#2a1520;border:1px solid #ff6b6b;border-radius:8px;padding:12px 16px}
.error-msg .error-title{color:#ff6b6b;font-size:13px;font-weight:500;margin-bottom:6px}
.error-msg .error-body{color:#cc8888;font-size:12px;line-height:1.5;word-break:break-word;white-space:pre-wrap;max-height:120px;overflow-y:auto}
.error-msg .error-actions{margin-top:10px;display:flex;gap:8px}
.error-retry{padding:5px 12px;background:#e94560;border:none;border-radius:6px;color:#fff;font-size:12px;cursor:pointer}
.error-retry:hover{background:#c73652}
.error-dismiss{padding:5px 12px;background:none;border:1px solid #555;border-radius:6px;color:#888;font-size:12px;cursor:pointer}
.error-dismiss:hover{border-color:#888;color:#ccc}

/* Section title */
.section-title{font-size:15px;font-weight:500;color:#ccc;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #2a2a4a}

/* Two columns */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* RVC sub-tabs */
.rvc-tabs{display:flex;gap:0;border-bottom:1px solid #2a2a4a;margin-bottom:20px}
.rvc-tab{padding:10px 20px;cursor:pointer;font-size:13px;color:#888;border-bottom:2px solid transparent;transition:all 0.2s}
.rvc-tab.active{color:#e94560;border-bottom:2px solid #e94560}

/* Small button */
.btn-sm{padding:6px 12px;background:#0f3460;border:1px solid #333;border-radius:6px;color:#aaa;cursor:pointer;font-size:12px;margin-top:6px}
.btn-sm:hover{border-color:#e94560;color:#e94560}

@media(max-width:520px){
  .two-col{grid-template-columns:1fr}
  .stems-grid{grid-template-columns:1fr}
  .tabs{padding:0 16px}
  .tab{padding:12px 14px;font-size:12px}
  header{padding:12px 16px}
}


/* ================== EQ ================================= */
#eq-slider-wrap {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 2px;
  padding: 4px 0;
}
 
.eq-band {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  flex: 1;
  min-width: 30px;
}
 
.eq-value {
  font-size: 10px;
  font-weight: 600;
  color: var(--accent, #4af);
  height: 14px;
  text-align: center;
  white-space: nowrap;
}
 
.eq-label {
  font-size: 10px;
  color: var(--text-secondary, #888);
  text-align: center;
  white-space: nowrap;
}
 
/* Wrapper clips the rotated slider to correct dimensions */
.eq-fader-wrap {
  width: 28px;
  height: 160px;
  overflow: visible;
  display: flex;
  align-items: center;
  justify-content: center;
}
 
.eq-fader {
  width: 160px;
  height: 28px;
  transform: rotate(-90deg);
  cursor: pointer;
  accent-color: var(--accent, #4af);
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}