* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }

:root {
  --accent-1: #c6ff35;
  --accent-2: #8fce00;
  --accent-text: #12140a;
}

:root[data-theme="dark"] {
  --bg: #0d0e12; --panel: #16171d; --panel2: #1c1d24; --border: #2a2b34;
  --text: #f2f2f6; --sub: #9a9aa8; --stage: #08090c; --input-bg: #1f2028;
  --accent-icon: #c6ff35; --accent-icon2: #8fce00;
}
:root[data-theme="light"] {
  --bg: #f6f5f3; --panel: #ffffff; --panel2: #faf9f7; --border: #e6e4e0;
  --text: #17171c; --sub: #6c6c78; --stage: #e7e5e1; --input-bg: #f2f1ee;
  --accent-icon: #5f8a00; --accent-icon2: #4a7300;
}

body {
  font-family: 'Sora', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: rgba(180,255,53,.35); border-radius: 6px; }

@keyframes agSpin { to { transform: rotate(360deg); } }
@keyframes agFadeUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.app {
  height: 100vh; width: 100%; display: flex; flex-direction: column;
  overflow: hidden;
}

/* Top bar */
.topbar {
  height: 64px; flex: none; display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; border-bottom: 1px solid var(--border); background: var(--panel);
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo-badge {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  display: flex; align-items: center; justify-content: center; flex: none;
}
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: -0.01em; }
.topbar-right { display: flex; align-items: center; gap: 18px; }

.aspect-toggle { display: flex; background: var(--input-bg); border-radius: 9px; padding: 3px; gap: 2px; }
.aspect-btn {
  border: none; cursor: pointer; padding: 7px 14px; border-radius: 7px;
  font: 600 12.5px 'Sora'; background: transparent; color: var(--text);
}
.aspect-btn.active { background: var(--accent-1); color: var(--accent-text); }

.icon-btn {
  border: 1px solid var(--border); background: var(--input-bg); cursor: pointer;
  width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  color: var(--text);
}
.icon-btn .icon-dark, .icon-btn .icon-light { display: none; }
:root[data-theme="dark"] .icon-btn .icon-dark { display: block; }
:root[data-theme="light"] .icon-btn .icon-light { display: block; }

/* Body */
.body-row { flex: 1; display: flex; overflow: hidden; }

.sidebar {
  width: 380px; flex: none; border-right: 1px solid var(--border); background: var(--panel);
  display: flex; flex-direction: column; overflow: hidden;
}
.tabs-nav { display: flex; flex-direction: column; padding: 14px; gap: 2px; border-bottom: 1px solid var(--border); }
.tab-btn {
  display: flex; align-items: center; gap: 11px; text-align: left; border: none; cursor: pointer;
  padding: 10px 12px; border-radius: 9px; background: transparent; color: var(--text); font: 600 13px 'Sora'; width: 100%;
}
.tab-btn.active { background: var(--accent-1); color: var(--accent-text); }
.tab-num {
  width: 20px; height: 20px; border-radius: 6px; background: var(--input-bg); color: var(--sub);
  display: flex; align-items: center; justify-content: center; font: 700 11px 'Sora'; flex: none;
}
.tab-btn.active .tab-num { background: rgba(0,0,0,.18); color: var(--accent-text); }

.sidebar-content { flex: 1; overflow-y: auto; padding: 22px 22px 32px; animation: agFadeUp .18s ease; }

.panel-title { font-weight: 700; font-size: 16px; margin-bottom: 6px; }
.panel-sub { font-size: 12.5px; color: var(--sub); line-height: 1.5; margin-bottom: 18px; }
.sub-text { color: var(--sub); }
.hint-text { font-size: 11.5px; color: var(--sub); margin-top: 6px; }
.field-label { font-size: 11.5px; color: var(--sub); font-weight: 600; margin-bottom: 6px; }
.row-between { display: flex; justify-content: space-between; font-size: 12.5px; font-weight: 600; }
.hr { height: 1px; background: var(--border); margin: 24px 0; }

.pill-badge {
  display: inline-flex; align-items: center; gap: 6px; background: rgba(198,255,53,.14); color: #8fce00;
  font: 700 11px 'Sora'; padding: 3px 9px; border-radius: 6px; margin-bottom: 10px;
}

.dropzone {
  border: 1.5px dashed var(--border); border-radius: 12px; padding: 34px 18px; text-align: center;
  cursor: pointer; background: var(--panel2);
}
.dz-title { font-weight: 600; font-size: 13.5px; margin-bottom: 3px; }
.dz-sub { font-size: 12px; color: var(--sub); }

.file-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 16px; background: var(--panel2);
  display: flex; align-items: center; gap: 12px;
}
.file-ico {
  width: 38px; height: 38px; border-radius: 9px; background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  flex: none; display: flex; align-items: center; justify-content: center;
}
.file-meta { flex: 1; min-width: 0; }
.file-name { font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-sub { font-size: 12px; color: var(--sub); }
.icon-only-btn { border: none; background: transparent; cursor: pointer; color: var(--sub); padding: 6px; }
.text-btn { border: none; background: transparent; cursor: pointer; color: var(--sub); padding: 4px; font-size: 12px; font-weight: 600; }

.error-box {
  margin-top: 12px; padding: 10px 12px; border-radius: 9px; background: rgba(224,95,95,.12);
  color: #e05f5f; font-size: 12.5px; font-weight: 500;
}
.notice-box {
  font-size: 12px; font-weight: 600; color: #8fce00; background: rgba(198,255,53,.14);
  border: 1px solid rgba(198,255,53,.3); border-radius: 9px; padding: 10px 12px; margin-bottom: 16px; line-height: 1.5;
}

.segmented { display: flex; background: var(--input-bg); border-radius: 9px; padding: 3px; gap: 2px; margin-bottom: 18px; }
.seg-btn { flex: 1; border: none; cursor: pointer; padding: 8px 6px; border-radius: 7px; font: 600 12px 'Sora'; background: transparent; color: var(--text); }
.seg-btn.active { background: var(--accent-1); color: var(--accent-text); }

.bg-card { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--panel2); }
.bg-card img { width: 100%; height: 120px; object-fit: cover; display: block; }
.bg-card-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; }
.bg-card-name { font-size: 12.5px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 230px; }

.style-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 24px; }
.style-tile { cursor: pointer; border-radius: 11px; padding: 14px 10px; text-align: center; border: 1.5px solid var(--border); background: var(--panel2); }
.style-tile.active { border-color: var(--accent-1); }
.style-tile-label { font-size: 12px; font-weight: 600; margin-top: 8px; }

.swatch-row { display: flex; flex-wrap: wrap; gap: 10px; }
.swatch { width: 46px; height: 46px; border-radius: 11px; cursor: pointer; border: 2.5px solid transparent; box-shadow: 0 1px 3px rgba(0,0,0,.15); }
.swatch.active { border-color: var(--accent-1); }
.custom-swatch {
  border-color: transparent; background: var(--input-bg); display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700; color: var(--sub); box-shadow: none;
}
.custom-swatch.active { border-color: var(--accent-1); }

.time-input {
  width: 56px; text-align: center; font: 600 12px 'Sora'; border: 1px solid var(--border); border-radius: 7px;
  background: var(--input-bg); color: var(--text); padding: 5px 4px;
}
.clip-len-label { flex: 1; text-align: center; font-weight: 600; font-size: 12px; color: var(--text); }

.trim-track { position: relative; height: 44px; background: var(--input-bg); border-radius: 9px; overflow: hidden; }
.trim-overview { position: absolute; inset: 0; display: flex; align-items: center; gap: 1px; padding: 0 4px; }
.trim-sel { position: absolute; top: 0; bottom: 0; background: rgba(198,255,53,.22); border-left: 2px solid var(--accent-1); border-right: 2px solid var(--accent-1); }

input.trimRange { position: absolute; left: 0; top: 0; width: 100%; margin: 0; height: 16px; pointer-events: none; background: transparent; }
input.trimRange::-webkit-slider-thumb { pointer-events: auto; -webkit-appearance: none; appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--accent-1); border: 2px solid #ffffff; box-shadow: 0 1px 4px rgba(0,0,0,.45); cursor: grab; margin-top: -6px; }
input.trimRange::-moz-range-thumb { pointer-events: auto; width: 16px; height: 16px; border-radius: 50%; background: var(--accent-1); border: 2px solid #ffffff; cursor: grab; }
input.trimRange::-webkit-slider-runnable-track { height: 4px; background: transparent; }
input.trimRange::-moz-range-track { height: 4px; background: transparent; }

.secondary-btn {
  display: flex; align-items: center; gap: 8px; border: 1px solid var(--border); background: var(--panel2);
  color: var(--text); border-radius: 9px; padding: 9px 14px; cursor: pointer; font: 600 12.5px 'Sora';
}
.primary-btn {
  width: 100%; border: none; cursor: pointer; padding: 13px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2)); color: var(--accent-text); font: 700 13.5px 'Sora';
}
.primary-btn:disabled { cursor: not-allowed; }
.download-btn {
  width: 100%; border: none; cursor: pointer; padding: 11px; border-radius: 9px; background: var(--text);
  color: var(--bg); font: 700 12.5px 'Sora';
}

.progress-track { height: 8px; background: var(--input-bg); border-radius: 5px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(135deg, var(--accent-1), var(--accent-2)); border-radius: 5px; transition: width .15s linear; }

.done-card { margin-top: 18px; padding: 14px; border-radius: 11px; background: rgba(95,214,122,.12); border: 1px solid rgba(95,214,122,.35); }
.done-title { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 13px; color: #2ecc71; margin-bottom: 10px; }

.summary-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: var(--panel2);
  display: flex; flex-direction: column; gap: 10px; font-size: 12.5px; margin-bottom: 16px;
}
.export-row {
  display: flex; align-items: center; gap: 11px; border: 1px solid var(--border); border-radius: 10px;
  padding: 11px 12px; cursor: pointer; background: var(--panel2);
}
.export-row-title { font-weight: 700; font-size: 13px; }
.export-row-res { font-weight: 500; color: var(--sub); font-size: 11.5px; }
.export-row-sub { font-size: 11.5px; color: var(--sub); margin-top: 2px; }

/* Preview stage */
.stage-wrap { flex: 1; display: flex; align-items: center; justify-content: center; background: var(--stage); padding: 40px; overflow: auto; }
.stage {
  position: relative; border-radius: 14px; overflow: hidden; box-shadow: 0 12px 40px rgba(0,0,0,.35); flex: none;
}
.stage-bg-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.stage-overlay { position: absolute; inset: 0; background: #000; pointer-events: none; }

.safe-area { position: absolute; inset: 6%; border: 1.5px dashed rgba(198,255,53,.6); border-radius: 4px; pointer-events: none; }
.safe-area-label {
  position: absolute; top: 6%; left: 8px; font: 700 9.5px 'Sora'; letter-spacing: .04em; color: var(--accent-1);
  text-shadow: 0 1px 2px rgba(0,0,0,.6); pointer-events: none; transform: translateY(-16px);
}
.guide { position: absolute; pointer-events: none; }
.guide-x { left: 50%; top: 0; bottom: 0; width: 0; border-left: 1.5px dashed #ff3ec6; }
.guide-y { top: 50%; left: 0; right: 0; height: 0; border-top: 1.5px dashed #ff3ec6; }

.wave-box { position: absolute; }
.wave-box svg { display: block; overflow: visible; width: 100%; height: 100%; }
.wave-drag-handle { position: absolute; inset: 0; }
.wave-label {
  position: absolute; top: -22px; left: 0; font: 700 10px 'Sora'; color: white; background: rgba(0,0,0,.55);
  padding: 3px 8px; border-radius: 5px; pointer-events: none;
}
.wave-resize-handle {
  position: absolute; right: -7px; bottom: -7px; width: 16px; height: 16px; border-radius: 4px;
  background: white; border: 2px solid var(--accent-1); cursor: nwse-resize;
}

.footer {
  flex: none; height: 30px; display: flex; align-items: center; justify-content: center;
  border-top: 1px solid var(--border); background: var(--panel); font-size: 11.5px; color: var(--sub);
}
.footer a { color: var(--sub); margin-left: 4px; }