:root {
  color-scheme: dark;
  --bg: #0a1020;
  --surface: #111a2c;
  --surface2: #17233a;
  --surface3: #202f49;
  --accent: #7c9cff;
  --accent-h: #a8bcff;
  --success: #43c98b;
  --danger: #ff6b78;
  --warn: #f6b94b;
  --text: #edf2ff;
  --muted: #a8b5cd;
  --border: #2b3a54;
  --r: 14px;
  --shadow-card: 0 14px 34px rgb(0 0 0 / 18%);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f6fc;
  --surface: #fff;
  --surface2: #f5f7fc;
  --surface3: #eaf0fa;
  --accent: #315fc6;
  --accent-h: #244da9;
  --success: #168455;
  --danger: #cf3447;
  --warn: #9a6500;
  --text: #19243a;
  --muted: #5f6e87;
  --border: #d7dfed;
  --shadow-card: 0 10px 26px rgb(31 51 86 / 7%);
}

* { -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; }
body {
  background:
    radial-gradient(ellipse at 12% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  transition: background-color .18s ease, color .18s ease;
}
button, input, select, textarea { font: inherit; }
button, select, input[type="range"], input[type="color"] { touch-action: manipulation; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 2px; }

header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 64px;
  padding: 10px clamp(14px, 3vw, 36px);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border-color: var(--border);
  box-shadow: 0 6px 22px rgb(0 0 0 / 10%);
  backdrop-filter: blur(16px);
}
header h1 { color: var(--text); font-size: 1.05rem; letter-spacing: -.025em; }
.pill { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }
.badge-local { background: color-mix(in srgb, var(--success) 13%, transparent); color: var(--success); }
.header-preferences { display: flex; align-items: center; gap: 7px; }
.preference-control {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 3px 9px;
  color: var(--muted);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.preference-control i { color: var(--accent); }
.preference-control select {
  width: auto;
  min-height: 30px;
  padding: 3px 18px 3px 2px;
  background: transparent;
  border: 0;
  color: var(--text);
}
.gh-link { margin-left: 0; color: var(--muted); background: var(--surface2); border-color: var(--border); }
.gh-link:hover { color: var(--text); border-color: var(--accent); background: var(--surface3); }

.container { width: min(1480px, 100%); padding: 24px clamp(12px, 3vw, 34px); }
.grid { grid-template-columns: minmax(280px, .86fr) minmax(0, 1.14fr); gap: 20px; align-items: start; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  box-shadow: var(--shadow-card);
}
.card-header {
  min-height: 48px;
  padding: 11px 17px;
  color: var(--text);
  font-size: .9rem;
  letter-spacing: 0;
  text-transform: none;
}
.card-body { padding: 17px; }
.card + .card { margin-top: 18px; }
.statusbar { min-height: 58px; background: var(--surface); border-color: var(--border); box-shadow: var(--shadow-card); }
#statusText { color: var(--text); }
.btn { min-height: 40px; border-radius: 9px; }
.btn-primary { background: var(--accent); }
.btn-primary:hover:not(:disabled) { background: var(--accent-h); }
.btn-success { background: var(--success); }
.btn-ghost { background: var(--surface2); border-color: var(--border); color: var(--text); }
.btn-ghost:hover:not(:disabled) { background: var(--surface3); }
.btn-sm { min-height: 34px; }
.batch-toggle { min-height: 34px; padding: 5px 11px; border-radius: 8px; background: var(--surface2); border-color: var(--border); color: var(--text); }

.drop-zone { padding: 34px 18px; background: var(--surface2); border-color: var(--border); }
.drop-zone:hover, .drop-zone.over { background: color-mix(in srgb, var(--accent) 8%, var(--surface2)); }
.drop-zone p { line-height: 1.6; }
.drop-zone strong { color: var(--accent); }
video, audio { max-height: 68vh; }
.file-meta { gap: 8px; }
.trim-row { gap: 18px; }
.timeline { height: 36px; border-radius: 8px; }

.ops-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.op-tile {
  min-height: 76px;
  padding: 11px 7px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface2);
  color: var(--muted);
  line-height: 1.25;
}
.op-tile i { margin-bottom: 6px; color: var(--accent); font-size: 19px; }
.op-tile:hover { background: var(--surface3); color: var(--text); }
.op-tile.active { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 13%, var(--surface2)); color: var(--text); }
.op-panel { padding: 16px; background: var(--surface2); border: 1px solid var(--border); border-radius: 12px; }
.op-panel h4 { color: var(--text); font-size: .86rem; letter-spacing: 0; text-transform: none; }
.form-row { gap: 10px; margin-bottom: 10px; }
.form-group { min-width: 130px; }
label.lbl { color: var(--text); font-size: .8rem; font-weight: 600; }
input[type="number"], input[type="text"], input[type="search"], select, textarea {
  min-height: 42px;
  padding: 9px 11px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9px;
}
input[type="range"] { min-height: 28px; accent-color: var(--accent); }
input[type="color"] { width: 100%; min-height: 42px; padding: 4px; background: var(--surface); border: 1px solid var(--border); border-radius: 9px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; }
.hint { color: var(--muted); line-height: 1.55; }
.mode-toggle { display: flex; width: fit-content; max-width: 100%; padding: 4px; background: var(--surface2); border-color: var(--border); }
.mode-btn { min-height: 38px; padding: 7px 14px; }
.mode-btn.active { background: var(--accent); }
.stack-item, .batch-file-item, .size-estimate { background: var(--surface2); border-color: var(--border); }
.stack-mini, .batch-btn-sm { background: var(--surface); border-color: var(--border); color: var(--text); }
.tag { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }
.operations-toolbar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(130px, .55fr); gap: 8px; margin: 0 0 12px; }
.op-search { position: relative; display: flex; align-items: center; min-width: 0; }
.op-search i { position: absolute; z-index: 1; left: 12px; color: var(--muted); pointer-events: none; }
.op-search input { width: 100%; min-width: 0; flex: 1 1 auto; padding-left: 40px; }
.op-search input[type="search"] { padding-left: 40px; }
.operations-toolbar select { min-width: 0; }

@font-face {
  font-family: "Watermark Noto Sans SC";
  src: url("./fonts/noto-sans-sc.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Watermark Noto Serif SC";
  src: url("./fonts/noto-serif-sc.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

.watermark-layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(210px, .8fr); gap: 16px; align-items: start; }
.watermark-controls { min-width: 0; }
.watermark-controls .form-group { min-width: 0; }
.watermark-controls .form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: end; }
.watermark-controls > .form-row:first-child { grid-template-columns: minmax(0, .85fr) minmax(0, 1.4fr) minmax(0, 1fr); }
.watermark-controls input[type="range"] { display: block; }
.watermark-font-picker { display: flex; align-items: center; gap: 8px; min-height: 24px; min-width: 0; margin-top: 5px; }
.watermark-font-picker span { overflow: hidden; color: var(--muted); font-size: .73rem; line-height: 1.4; text-overflow: ellipsis; }
#watermarkFontInput { display: none; }
.watermark-advanced { margin-top: 6px; padding: 10px 12px 2px; border: 1px solid var(--border); border-radius: 10px; }
.watermark-advanced summary { padding-bottom: 9px; color: var(--text); cursor: pointer; font-size: .82rem; font-weight: 650; }
.watermark-preview-shell { min-width: 0; }
.watermark-preview {
  position: relative;
  width: 100%;
  max-width: 100%;
  margin-inline: auto;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 0;
  border-radius: 11px;
  background: linear-gradient(145deg, #223c55, #387567 47%, #d4a56f);
  box-shadow: inset 0 0 0 1px var(--border), inset 0 0 32px rgb(0 0 0 / 20%);
}
.watermark-preview::before, .watermark-preview::after { position: absolute; content: ""; pointer-events: none; }
.watermark-preview::before { inset: 42% -5% -35%; transform: rotate(-9deg); background: linear-gradient(165deg, #27384a 0 47%, #182330 48%); }
.watermark-preview::after { inset: 10% -5% 45%; transform: rotate(7deg); background: linear-gradient(165deg, transparent 45%, rgb(245 228 181 / 55%) 46% 50%, transparent 51%); }
#watermarkPreviewText {
  position: absolute;
  z-index: 1;
  left: 0;
  top: 0;
  width: max-content;
  max-width: none;
  padding: var(--watermark-box-padding, 0px);
  overflow: visible;
  color: var(--watermark-color, #fff);
  background: rgb(0 0 0 / var(--watermark-bg, 0%));
  border-radius: 4px;
  font-size: var(--watermark-size, 15px);
  font-weight: 700;
  line-height: 1.05;
  text-shadow: var(--watermark-shadow-offset, 2px) var(--watermark-shadow-offset, 2px) var(--watermark-shadow-blur, 0px) var(--watermark-shadow-color, rgb(0 0 0 / 35%));
  -webkit-text-stroke: var(--watermark-outline, 0px) var(--watermark-outline-color, #000);
  paint-order: stroke fill;
  font-family: var(--watermark-font-family, system-ui, sans-serif);
  white-space: nowrap;
}
.watermark-command-card { display: grid; gap: 5px; margin-top: 12px; padding: 10px 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }
.watermark-command-card > span { color: var(--muted); font-size: .72rem; font-weight: 650; }
.watermark-command-card code { display: block; max-height: 100px; overflow: auto; color: #7dd3fc; font: .72rem/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; overflow-wrap: anywhere; }

.cmd-preview, .crop-editor { border: 1px solid var(--border); }
.log-shell, .log, .log-current, .cmd-preview { color-scheme: dark; }
.crop-editor, .crop-stage { background-color: #080d16; }
.out-empty { color: var(--muted); }

@media (max-width: 980px) {
  .grid { grid-template-columns: 1fr; }
  .watermark-layout { grid-template-columns: minmax(0, 1fr) minmax(220px, .75fr); }
}
@media (max-width: 680px) {
  header { position: relative; display: flex; flex-wrap: nowrap; align-items: center; gap: 5px; min-height: 44px; padding: 5px 8px; }
  header > svg, header .pill, .badge-local { display: none; }
  header h1 { flex: 0 1 auto; min-width: 0; overflow: hidden; font-size: .9rem; text-overflow: ellipsis; white-space: nowrap; }
  .header-preferences { flex: 0 0 auto; gap: 3px; margin-left: auto; }
  .preference-control { min-height: 31px; gap: 3px; padding: 2px 4px; border-radius: 7px; }
  .preference-control i { font-size: .75rem; }
  .preference-control select { width: 58px; max-width: 58px; min-height: 25px; padding: 2px 11px 2px 0; font-size: .66rem; }
  #themeSelect { width: 50px; max-width: 50px; }
  .gh-link { position: static; display: inline-flex; flex: 0 0 30px; align-items: center; justify-content: center; width: 30px; height: 30px; margin: 0; padding: 0; border-radius: 8px; }
  .gh-link span { display: none; }
  .container { padding: 7px 0 calc(12px + env(safe-area-inset-bottom)); }
  .grid { gap: 4px; }
  .card, .card.disabled {
    overflow: visible;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .card + .card { margin-top: 5px; }
  .card-header { min-height: 37px; padding: 7px 11px; border-bottom: 1px solid var(--border); font-size: .82rem; }
  .card-body { padding: 8px 11px; }
  .stack-item, .batch-file-item, .size-estimate {
    padding: 6px 2px;
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    background: transparent;
  }
  .watermark-advanced, .watermark-command-card, .raw-examples-details {
    padding-inline: 0;
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    background: transparent;
  }
  .watermark-advanced { padding-block: 6px 2px; }
  .watermark-command-card { padding-block: 7px; }
  .raw-examples-details { overflow: visible; }
  .raw-examples-details summary { padding-inline: 0; background: transparent; }
  .rex-list { padding-inline: 0; background: transparent; }
  .raw-example-btn { padding: 6px 2px; border: 0; border-bottom: 1px solid var(--border); border-radius: 0; background: transparent; }
  .statusbar { flex-wrap: nowrap; gap: 7px; min-height: 0; padding: 7px 11px; border-inline: 0; border-radius: 0; box-shadow: none; }
  #statusText { min-width: 0; font-size: .73rem; line-height: 1.3; }
  .statusbar .ml-auto { width: auto; margin-left: auto; flex: 0 0 auto; }
  .statusbar .btn { width: auto; min-height: 34px; padding: 6px 9px; justify-content: center; font-size: .72rem; }
  .ops-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 5px; }
  .op-tile { min-height: 48px; padding: 5px 2px; border: 0; border-bottom: 1px solid var(--border); border-radius: 4px; background: transparent; font-size: .67rem; line-height: 1.15; }
  .op-tile i { margin-bottom: 3px; font-size: 14px; }
  .operations-toolbar { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 6px; margin-bottom: 8px; }
  .operations-toolbar input, .operations-toolbar select { min-height: 36px; padding-block: 6px; font-size: .78rem; }
  .operations-toolbar .op-search input[type="search"] { padding-left: 40px; }
  .watermark-layout { grid-template-columns: 1fr; }
  .watermark-preview-shell { order: -1; }
  .watermark-preview { aspect-ratio: 16 / 7; max-height: 150px; }
  .watermark-controls .form-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin-bottom: 7px; }
  .watermark-controls > .form-row:first-child { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .watermark-controls > .form-row:first-child > .form-group:first-child { grid-column: 1; grid-row: 1; }
  .watermark-controls > .form-row:first-child > .form-group:last-child { grid-column: 2; grid-row: 1; }
  .watermark-controls .watermark-text-group { grid-column: 1 / -1; grid-row: 2; }
  .op-panel { margin-bottom: 9px; padding: 0; border: 0; border-radius: 0; background: transparent; }
  .op-panel h4 { margin-bottom: 6px; font-size: .78rem; }
  .form-row { gap: 6px; margin-bottom: 7px; }
  .form-group { min-width: 0; }
  input[type="number"], input[type="text"], input[type="search"], select, textarea { min-height: 37px; padding: 7px 9px; }
  input[type="color"] { min-height: 37px; }
  .hint { font-size: .72rem; line-height: 1.4; }
  .drop-zone { padding: 15px 10px; }
  .drop-zone i { font-size: 2rem !important; margin-bottom: 5px !important; }
  .drop-zone p { margin-block: 2px; font-size: .78rem; }
  .trim-row { gap: 7px; }
  video { max-height: 38vh; }
  .timeline { height: 27px; }
  .size-estimate { margin-bottom: 7px; padding: 6px 9px; }
  .mode-toggle { padding: 2px; }
  .mode-btn { min-height: 33px; padding: 5px 9px; font-size: .77rem; }
  .log-current { padding: 7px 9px; }
  .log { height: 84px; }
  .container > .card:last-child { margin-bottom: 8px !important; }
  .trim-row { gap: 8px; }
  .trim-row { flex-direction: row; }
  .out-actions { flex-direction: row; flex-wrap: wrap; align-items: center; }
}
@media (max-width: 420px) {
  .ops-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .operations-toolbar { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); }
  .form-row { gap: 6px; }
  .form-group { min-width: 0; }
  .watermark-controls .form-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .watermark-controls .watermark-text-group { grid-column: 1 / -1; }
  .watermark-controls > .form-row:first-child { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .watermark-font-picker { flex-wrap: wrap; }
  .watermark-font-picker span { max-width: 100%; }
  .mode-toggle { width: 100%; }
  .mode-btn { flex: 1; padding-inline: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}