/* Admin panel — the artist-facing builder.
   Deliberately neutral so it never competes with the player preview. */

:root {
  --ui-bg:        #f7f5f2;
  --ui-panel:     #ffffff;
  --ui-line:      #e2ddd6;
  --ui-line-2:    #cfc8be;
  --ui-text:      #211d19;
  --ui-dim:       #6f665c;
  --ui-accent:    #b4451f;
  --ui-accent-bg: #fdf0eb;
  --ui-r:         10px;
  --ui-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ui-mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ui-bg: #141210; --ui-panel: #1c1917; --ui-line: #2e2a26; --ui-line-2: #423c36;
    --ui-text: #f0ebe4; --ui-dim: #a09689; --ui-accent: #ff8a4c; --ui-accent-bg: #2a1a12;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--ui-font);
  background: var(--ui-bg);
  color: var(--ui-text);
  font-size: 14px;
}

/* ---------- shell ---------- */

.app {
  display: grid;
  grid-template-columns: minmax(340px, 420px) minmax(0, 1fr);
  height: 100vh;
}

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; height: auto; }
  .preview { position: static !important; height: 70vh; }
}

.panel {
  overflow-y: auto;
  border-right: 1px solid var(--ui-line);
  background: var(--ui-panel);
}

.panel-head {
  position: sticky; top: 0; z-index: 5;
  background: var(--ui-panel);
  border-bottom: 1px solid var(--ui-line);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
}

.panel-head h1 { font-size: 15px; margin: 0 0 2px; letter-spacing: -.01em; }
.panel-head p  { font-size: 12px; color: var(--ui-dim); margin: 0; }
.head-actions { display: flex; gap: 7px; }

.draft-picker {
  padding: 13px 20px;
  border-bottom: 1px solid var(--ui-line);
  background: var(--ui-bg);
}
.draft-picker select { margin-bottom: 8px; }
.text-btn {
  appearance: none; border: 0; padding: 0; background: none; color: #b42318;
  font: inherit; font-size: 12px; cursor: pointer; text-decoration: underline;
}
.text-btn:hover { color: #7a1510; }

.mini-btn {
  flex: none;
  border: 1px solid var(--ui-line-2);
  background: var(--ui-bg);
  color: var(--ui-dim);
  border-radius: 7px;
  padding: 6px 9px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.mini-btn:hover { color: var(--ui-text); border-color: var(--ui-accent); }

/* ---------- sections ---------- */

.sec { border-bottom: 1px solid var(--ui-line); }

.sec > summary {
  padding: 14px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  list-style: none;
  display: flex; align-items: center; gap: 8px;
  user-select: none;
}
.sec > summary::-webkit-details-marker { display: none; }
.sec > summary::before {
  content: "";
  width: 6px; height: 6px;
  border-right: 1.6px solid var(--ui-dim);
  border-bottom: 1.6px solid var(--ui-dim);
  transform: rotate(-45deg);
  transition: transform .18s ease;
}
.sec[open] > summary::before { transform: rotate(45deg); }
.sec > summary:hover { background: var(--ui-bg); }

.sec-body { padding: 4px 20px 20px; }

/* ---------- fields ---------- */

.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }

label.lbl {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ui-dim);
  margin-bottom: 5px;
  font-weight: 600;
}

input[type="text"], input[type="number"], input[type="url"], textarea, select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--ui-line-2);
  border-radius: 7px;
  background: var(--ui-bg);
  color: var(--ui-text);
  font: inherit;
  font-size: 13px;
}

textarea { resize: vertical; min-height: 68px; line-height: 1.5; }

textarea.code-area {
  min-height: 180px;
  font-family: var(--ui-mono);
  font-size: 11.5px;
  line-height: 1.45;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
}

input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--ui-accent);
  outline-offset: -1px;
  border-color: transparent;
}

.row { display: flex; gap: 10px; }
.row > * { flex: 1; min-width: 0; }

.hint { font-size: 11.5px; color: var(--ui-dim); margin: 5px 0 0; line-height: 1.5; }

/* segmented control (release type) */
.seg { display: flex; gap: 0; border: 1px solid var(--ui-line-2); border-radius: 7px; overflow: hidden; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label {
  flex: 1; text-align: center; padding: 8px 6px; font-size: 12.5px;
  cursor: pointer; background: var(--ui-bg); border-right: 1px solid var(--ui-line-2);
}
.seg label:last-of-type { border-right: 0; }
.seg input:checked + label { background: var(--ui-accent); color: #fff; font-weight: 600; }

/* color rows */
.color-row {
  display: grid;
  grid-template-columns: 1fr 34px 78px;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.color-row span { font-size: 12.5px; }
.color-row input[type="color"] {
  width: 34px; height: 30px; padding: 0;
  border: 1px solid var(--ui-line-2); border-radius: 6px;
  background: none; cursor: pointer;
}
.color-row input[type="text"] { font-family: var(--ui-mono); font-size: 11.5px; padding: 6px 7px; }

/* sliders */
.slider-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; margin-bottom: 10px; }
.slider-row span { font-size: 12.5px; }
.slider-row .val { font-family: var(--ui-mono); font-size: 11.5px; color: var(--ui-dim); min-width: 46px; text-align: right; }
.slider-row input[type="range"] { grid-column: 1 / -1; width: 100%; accent-color: var(--ui-accent); }

/* presets */
.presets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 14px; }
.preset {
  border: 1px solid var(--ui-line-2);
  border-radius: 8px;
  padding: 0; overflow: hidden;
  cursor: pointer; background: none;
}
.preset:hover { border-color: var(--ui-accent); }
.preset .swatch { height: 34px; display: flex; }
.preset .swatch i { flex: 1; }
.preset .nm { display: block; font-size: 10.5px; padding: 4px 2px; color: var(--ui-dim); }

/* dropzone */
.drop {
  border: 1.5px dashed var(--ui-line-2);
  border-radius: var(--ui-r);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.drop:hover, .drop.over { border-color: var(--ui-accent); background: var(--ui-accent-bg); }
.drop p { margin: 0; font-size: 12.5px; color: var(--ui-dim); }

.art-preview {
  display: grid; grid-template-columns: 76px 1fr; gap: 12px; align-items: center;
  margin-top: 12px;
}
.art-preview img { width: 76px; height: 76px; object-fit: cover; border-radius: 8px; border: 1px solid var(--ui-line); }
.art-preview .meta { font-size: 12px; color: var(--ui-dim); line-height: 1.55; }

/* track list */
.tracks { list-style: none; margin: 12px 0 0; padding: 0; }
.track-item {
  display: grid;
  grid-template-columns: 20px 1fr 46px 24px;
  gap: 8px; align-items: center;
  padding: 7px 8px;
  border: 1px solid var(--ui-line);
  border-radius: 7px;
  margin-bottom: 6px;
  background: var(--ui-bg);
}
.track-item.dragging { opacity: .4; }
.track-item.drop-target { border-color: var(--ui-accent); }
.track-item .grip { cursor: grab; color: var(--ui-dim); text-align: center; font-size: 13px; }
.track-item input[type="text"] { border: 0; background: none; padding: 4px 2px; font-size: 13px; }
.track-item input[type="text"]:focus { outline: 1px solid var(--ui-accent); border-radius: 4px; }
.track-item .dur { font-family: var(--ui-mono); font-size: 11.5px; color: var(--ui-dim); text-align: right; }
.track-item .rm {
  border: 0; background: none; cursor: pointer; color: var(--ui-dim);
  font-size: 16px; line-height: 1; padding: 2px 4px; border-radius: 4px;
}
.track-item .rm:hover { color: #c0392b; background: var(--ui-accent-bg); }

.booklet-pages { list-style: none; margin: 12px 0 0; padding: 0; }
.booklet-page {
  display: grid; grid-template-columns: 42px 1fr 24px; align-items: center; gap: 9px;
  padding: 7px 8px; margin-bottom: 6px; border: 1px solid var(--ui-line);
  border-radius: 7px; background: var(--ui-bg);
}
.booklet-page img { width: 42px; height: 42px; object-fit: cover; border-radius: 4px; }
.booklet-page input { border: 0; background: transparent; padding: 4px 2px; }

/* buttons */
.btn {
  appearance: none;
  border: 1px solid var(--ui-line-2);
  background: var(--ui-panel);
  color: var(--ui-text);
  padding: 9px 15px;
  border-radius: 7px;
  font: inherit; font-size: 13px; font-weight: 500;
  cursor: pointer;
}
.btn:hover { border-color: var(--ui-accent); color: var(--ui-accent); }
.btn--primary { background: var(--ui-accent); color: #fff; border-color: transparent; font-weight: 600; }
.btn--primary:hover { color: #fff; filter: brightness(1.08); }
.btn--full { width: 100%; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

.hard-mode {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
}

.hard-mode input { accent-color: var(--ui-accent); }

/* code output */
code.snippet {
  display: block;
  font-family: var(--ui-mono);
  font-size: 11px;
  background: var(--ui-bg);
  border: 1px solid var(--ui-line);
  border-radius: 7px;
  padding: 10px;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
  margin-top: 8px;
}

/* ---------- preview pane ---------- */

.preview {
  position: sticky; top: 0;
  height: 100vh;
  display: flex; flex-direction: column;
  background: var(--ui-bg);
}

.preview-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--ui-line);
  background: var(--ui-panel);
}

.preview-bar .sp { flex: 1; }
.preview-bar .tag { font-size: 11px; color: var(--ui-dim); }

.dev-toggle { display: flex; border: 1px solid var(--ui-line-2); border-radius: 7px; overflow: hidden; }
.dev-toggle button {
  border: 0; background: var(--ui-panel); color: var(--ui-dim);
  padding: 6px 12px; font: inherit; font-size: 12px; cursor: pointer;
}
.dev-toggle button[aria-pressed="true"] { background: var(--ui-accent); color: #fff; font-weight: 600; }

.preview-stage {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 20px;
  overflow: auto;
  background:
    repeating-conic-gradient(var(--ui-line) 0% 25%, transparent 0% 50%) 50% / 18px 18px;
}

.preview-frame {
  border: 0;
  background: #000;
  border-radius: 12px;
  box-shadow: 0 18px 50px -14px rgba(0,0,0,.45);
  width: 100%;
  height: 100%;
  max-width: 1000px;
  transition: max-width .22s ease, height .22s ease;
}

.preview-frame.mobile {
  max-width: 390px;
  height: min(780px, 100%);
  border-radius: 26px;
}

.empty {
  color: var(--ui-dim);
  font-size: 13px;
  text-align: center;
  max-width: 30ch;
  line-height: 1.6;
}