:root {
  --bg:           #110d0d;
  --card:         #1e1414;
  --card2:        #2a1b1b;
  --ink:          #f0e4e4;
  --muted:        #a08080;
  --accent:       #d63031;
  --accent-hover: #e84848;
  --line:         #3d2424;
  --radius:       8px;
  --radius-sm:    4px;
  --gap:          16px;
  --success:      #3ecf8e;
  --error:        #ff5f5f;
  --code-bg:      #0d0808;
  --code-text:    #ff9999;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  min-height: 100dvh;
}

/* ── Layout ─────────────────────────────────── */
.app-header {
  border-bottom: 1px solid var(--line);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 52px;
}

.app-title {
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  margin: 0;
}

.app-title span {
  color: var(--muted);
  font-weight: 400;
  font-size: 12px;
  margin-left: 6px;
}

.tabs {
  display: flex;
  gap: 0;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  padding: 0 16px;
  height: 52px;
  transition: color .15s, border-color .15s;
}

.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--ink); border-bottom-color: var(--accent); }

.wrap { max-width: 900px; margin: 0 auto; padding: 28px 20px; }

/* ── Card ────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--gap);
}

/* ── Preset chips ────────────────────────────── */
.chips-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.chip-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip {
  padding: 5px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  transition: border-color .15s, color .15s, background .15s;
}

.chip:hover { border-color: var(--accent); color: var(--ink); }
.chip.active { border-color: var(--accent); background: var(--accent); color: #fff; }

/* ── Calculator panel ────────────────────────── */
#panel-calc { display: none; }
#panel-calc.visible { display: block; }

.calc-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: end;
  margin-top: 20px;
}

.field label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #0d0808;
  color: var(--ink);
  font-size: 15px;
  outline: none;
  transition: border-color .15s;
}

.field input:focus { border-color: var(--accent); }
.field input:disabled { background: #0a0606; color: #6b5050; border-style: dashed; cursor: not-allowed; }
.field input.err { border-color: var(--accent); }

.err-msg { color: var(--accent); font-size: 12px; min-height: 16px; margin-top: 4px; }

.flip-wrap { display: flex; align-items: flex-end; padding-bottom: 22px; }

.icon-btn {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  cursor: pointer;
  font-size: 16px;
  padding: 9px 12px;
  transition: border-color .15s;
}
.icon-btn:hover { border-color: var(--accent); }

.calc-result {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.result-value {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.result-meta { color: var(--muted); font-size: 13px; margin-top: 2px; }

.result-value.copyable { cursor: pointer; }
.result-value.copyable:hover { color: var(--accent); }
.result-value.copied { color: var(--accent); }

.result-value.copyable::after {
  content: "  click to copy";
  font-size: 11px;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
}
.result-value.copyable:hover::after { color: var(--accent); }
.result-value.copied::after { content: ""; }

.btn-row { margin-top: 16px; display: flex; gap: 8px; }

.text-btn {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  cursor: pointer;
  font-size: 13px;
  padding: 7px 14px;
  transition: border-color .15s;
}
.text-btn:hover { border-color: var(--accent); }

.reference-visual {
  margin-top: 28px;
}

.reference-visual h3 {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.reference-visual img {
  width: 100%;
  max-width: 530px;
  height: auto;
  display: block;
}

/* ── Crop panel ──────────────────────────────── */
#panel-crop { display: none; }
#panel-crop.visible { display: block; }

.crop-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: var(--gap);
  align-items: start;
}

/* Drop zone */
.dropzone {
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  position: relative;
  overflow: hidden;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.dropzone:hover,
.dropzone.dragover { border-color: var(--accent); background: rgba(214,48,49,.05); }

.dropzone svg { opacity: .4; }

.dropzone-hint { font-size: 12px; color: var(--muted); opacity: .7; }

/* Canvas wrapper */
.canvas-wrap {
  position: relative;
  background: #0d0808;
  border-radius: var(--radius);
  overflow: hidden;
  line-height: 0;
}

#cropCanvas {
  width: 100%;
  display: block;
  touch-action: none;
  cursor: crosshair;
  max-height: 70vh;
}

/* Sidebar */
.sidebar { display: flex; flex-direction: column; gap: 14px; }

.sidebar-section { }
.sidebar-label { font-size: 12px; color: var(--muted); margin-bottom: 8px; }

.res-options { display: flex; flex-direction: column; gap: 6px; }
.res-option { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }
.res-option input[type=radio] { accent-color: var(--accent); }

.custom-ratio-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}
.custom-ratio-row input {
  width: 54px;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--code-bg);
  color: var(--ink);
  font-size: 13px;
  outline: none;
  text-align: center;
}
.custom-ratio-row input:focus { border-color: var(--accent); }
.custom-ratio-row span { color: var(--muted); font-size: 14px; font-weight: 600; }

.custom-res-wrap { display: flex; align-items: center; gap: 6px; margin-top: 4px; }
.custom-res-wrap input[type=number] {
  width: 80px;
  padding: 6px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #0d0808;
  color: var(--ink);
  font-size: 13px;
  outline: none;
}
.custom-res-wrap input:focus { border-color: var(--accent); }
.custom-res-wrap span { font-size: 12px; color: var(--muted); }

.export-btn {
  width: 100%;
  padding: 10px;
  border-radius: var(--radius);
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.export-btn:hover { background: var(--accent-hover); }
.export-btn:disabled { opacity: .4; cursor: not-allowed; }

.export-btn-secondary {
  width: 100%;
  padding: 8px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .15s;
  margin-top: 6px;
}
.export-btn-secondary:hover { border-color: var(--accent); }
.export-btn-secondary:disabled { opacity: .4; cursor: not-allowed; }

.crop-info {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

.crop-info strong { color: var(--ink); }

/* Warn small image */
.size-warn {
  font-size: 11px;
  color: #f5a623;
  margin-top: 4px;
  display: none;
}
.size-warn.visible { display: block; }

/* ── Embed panel ─────────────────────────────── */
#panel-embed { display: none; }
#panel-embed.visible { display: block; }

/* ── Compressor panel ────────────────────────── */
#panel-compress { display: none; }
#panel-compress.visible { display: block; }

/* Service tabs (pill style, inside the embed panel) */
.svc-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.svc-btn {
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
}
.svc-btn:hover { border-color: var(--accent); color: var(--ink); }
.svc-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }

.svc-panel { display: none; }
.svc-panel.active { display: block; }

/* Embed card */
.e-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--gap);
}

.e-card label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 6px;
}

.e-card input[type="text"],
.e-card input[type="url"],
.e-card textarea,
.e-card select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: 14px;
  padding: 8px 10px;
  outline: none;
  transition: border-color .15s;
  font-family: inherit;
}
.e-card input:focus,
.e-card textarea:focus,
.e-card select:focus { border-color: var(--accent); }

.e-card textarea {
  resize: vertical;
  min-height: 80px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 13px;
}

.e-hint { margin: 6px 0 0; font-size: 12px; color: var(--muted); }

.e-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  margin-top: 12px;
}
.e-field { flex: 1; }
.e-field label { margin-bottom: 5px; }

.e-color-field { flex: 0 0 auto; }
.e-color-field label { display: block; margin-bottom: 5px; }
input[type="color"] {
  width: 44px;
  height: 35px;
  padding: 2px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg);
  cursor: pointer;
}

.e-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 8px;
  align-items: center;
}
.e-swatch-label { font-size: 11px; color: var(--muted); white-space: nowrap; }
.e-swatch {
  width: 20px;
  height: 20px;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,.15);
  cursor: pointer;
  transition: transform .1s, box-shadow .1s;
  flex-shrink: 0;
}
.e-swatch:hover { transform: scale(1.2); box-shadow: 0 0 0 2px var(--accent); position: relative; z-index: 1; }

.e-float-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}
.e-float-row input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.e-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
  white-space: nowrap;
}
.e-btn-primary { background: var(--accent); color: #fff; }
.e-btn-primary:hover { background: var(--accent-hover); }
.e-btn-copy { background: var(--card2); color: var(--ink); border: 1px solid var(--line); }
.e-btn-copy:hover { border-color: var(--accent); color: var(--accent); }
.e-btn-copy.copied { background: var(--success); color: #fff; border-color: var(--success); }

.e-error { display: none; margin-top: 8px; font-size: 13px; color: var(--error); }
.e-error.visible { display: block; }

.e-output { display: none; margin-top: 20px; border-top: 1px solid var(--line); padding-top: 20px; }
.e-output.visible { display: block; }

.e-output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.e-output-header span {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.e-code {
  width: 100%;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--code-text);
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 12px;
  padding: 10px;
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
  outline: none;
}
.e-code:focus { border-color: var(--line); }

.e-preview-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin: 16px 0 8px;
}
.e-preview-wrap {
  border: 2px dashed var(--line);
  border-radius: var(--radius-sm);
  background: #000;
  min-height: 150px;
  overflow: hidden;
}

/* ── Compressor panel ────────────────────────── */
.cmp-layout {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  max-width: 680px;
}

.cmp-dropzone { cursor: pointer; }
.cmp-dropzone.drag-over { border-color: var(--accent); background: var(--card2); }
.cmp-dropzone.has-file .cmp-drop-text { color: var(--ink); font-weight: 500; }

.cmp-info { display: grid; }
.cmp-info-grid {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 4px 16px;
  font-size: 13px;
}
.cmp-info-label { color: var(--muted); }

.cmp-mode-row { display: flex; gap: 20px; }

.cmp-chip-row { flex-wrap: wrap; }

.cmp-est-size {
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
  min-height: 18px;
}

.cmp-quality-note {
  font-size: 11px;
  color: var(--muted);
  margin: 8px 0 0;
}

.cmp-audio-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--code-bg);
}

.cmp-progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cmp-progress-track {
  height: 8px;
  background: var(--line);
  border-radius: 4px;
  overflow: hidden;
}

.cmp-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.cmp-progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
}

.cmp-elapsed { color: var(--muted); }

/* ── Responsive ──────────────────────────────── */
@media (max-width: 680px) {
  .app-header { padding: 0 14px; gap: 12px; }
  .app-title { font-size: 13px; }
  .tab-btn { font-size: 13px; padding: 0 10px; }
  .wrap { padding: 20px 14px; }

  .calc-grid { grid-template-columns: 1fr auto 1fr; gap: 8px; }

  .crop-layout { grid-template-columns: 1fr; }
  .sidebar { order: -1; }
  .res-options { flex-direction: row; flex-wrap: wrap; }
}

/* ── Embed-friendly narrow layout ────────────── */
@media (max-width: 480px) {
  .app-header { gap: 8px; }
  .app-title { display: none; }
  .wrap { padding: 14px 10px; }
  .chip { padding: 4px 10px; font-size: 12px; }
  .result-value { font-size: 18px; }
  .calc-grid { gap: 6px; }
}