:root {
  --ink: #f3ead4;
  --dim: #c9b696;
  --paper: #efe3c8;
  --panel: rgba(28, 20, 12, 0.86);
  --border: rgba(255, 231, 190, 0.16);
  --accent: #e2a24a;
  --accent-ink: #241a10;
  --danger: #e0705a;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --serif: Georgia, "Times New Roman", serif;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; height: 100%; overflow: hidden;
  background: #241b13; color: var(--ink);
  font-family: var(--mono);
}
#scene { position: fixed; inset: 0; display: block; width: 100%; height: 100%; touch-action: none; }

.ui { position: fixed; inset: 0; pointer-events: none; z-index: 2; }
.ui > * { pointer-events: auto; }

a { color: var(--accent); }

/* header */
header.bar {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  padding: 0.8rem 1rem; flex-wrap: wrap;
  background: linear-gradient(to bottom, rgba(0,0,0,0.55), transparent);
}
header.bar .title { color: var(--ink); text-decoration: none; font-weight: 800; font-size: 1.15rem; letter-spacing: 0.01em; }
header.bar .title span { color: var(--accent); }
header.bar .blurb { color: var(--dim); font-size: 0.72rem; max-width: 42ch; }

/* generic buttons */
.btn {
  font-family: var(--mono); font-size: 0.78rem; padding: 0.5rem 0.85rem;
  border-radius: 0.4rem; cursor: pointer; border: 1px solid var(--border);
  background: var(--panel); color: var(--ink); text-decoration: none; display: inline-block;
}
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 700; }
.btn.ghost:hover, .btn.primary:hover { filter: brightness(1.1); }

/* panels (shared card look) */
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 0.6rem;
  backdrop-filter: blur(6px);
}

/* upload screen */
.upload-panel {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: min(560px, 92vw); max-height: 88vh; overflow: auto;
  padding: 1.6rem 1.6rem 1.8rem;
}
.upload-panel h1 { margin: 0 0 0.6rem; font-family: var(--serif); font-size: 1.9rem; }
.upload-panel h1 .s1 { color: var(--accent); }
.upload-panel h1 .s2 { color: var(--dim); }
.upload-panel .lede { color: var(--dim); font-size: 0.82rem; line-height: 1.55; margin: 0 0 1.1rem; }
.upload-panel .lede b { color: var(--ink); }

.drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.35rem;
  padding: 2rem 1rem; border: 1.5px dashed var(--border); border-radius: 0.5rem;
  cursor: pointer; text-align: center; transition: border-color 0.15s, background 0.15s;
}
.drop:hover, .drop.dragover { border-color: var(--accent); background: rgba(226, 162, 74, 0.08); }
.drop-title { font-weight: 700; }
.drop-sub { color: var(--dim); font-size: 0.72rem; }

.error {
  margin-top: 0.8rem; padding: 0.6rem 0.8rem; border-radius: 0.4rem;
  background: rgba(224, 112, 90, 0.15); border: 1px solid rgba(224, 112, 90, 0.4);
  color: #ffb3a0; font-size: 0.78rem;
}

.preview { margin-top: 1.1rem; }
.preview h2 { font-family: var(--serif); font-size: 1.1rem; margin: 0 0 0.5rem; }
.preview h2 span { color: var(--accent); }
.fields { list-style: none; margin: 0 0 0.6rem; padding: 0; font-size: 0.76rem; color: var(--dim); display: grid; gap: 0.25rem; }
.fields li b { color: var(--ink); }
.fields li .missing { color: #ffb3a0; }
.skipped { font-size: 0.72rem; color: var(--dim); margin: 0 0 0.8rem; }
.reread-row {
  display: flex; align-items: flex-start; gap: 0.5rem; cursor: pointer;
  font-size: 0.74rem; color: var(--dim); line-height: 1.4;
  margin: 0 0 0.9rem; padding: 0.5rem 0.6rem;
  background: rgba(226, 162, 74, 0.06); border: 1px solid var(--border); border-radius: 0.4rem;
}
.reread-row input { margin-top: 0.15rem; accent-color: var(--accent); }

/* room controls */
.controls-panel {
  position: absolute; top: 3.6rem; left: 1rem; right: 1rem;
  display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
  padding: 0.55rem 0.7rem;
}
.controls-panel input, .controls-panel select {
  font-family: var(--mono); font-size: 0.78rem; background: rgba(0,0,0,0.3);
  border: 1px solid var(--border); color: var(--ink); border-radius: 0.35rem; padding: 0.4rem 0.55rem;
}
.controls-panel input[type="search"] { flex: 1 1 180px; min-width: 140px; }
.controls-panel .count { color: var(--dim); font-size: 0.72rem; margin-left: auto; }

.hint {
  position: absolute; bottom: 0.9rem; left: 50%; transform: translateX(-50%);
  color: var(--dim); font-size: 0.7rem; background: rgba(0,0,0,0.35);
  padding: 0.35rem 0.7rem; border-radius: 1rem; white-space: nowrap;
}

/* detail panel */
.detail {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(320px, 88vw);
  background: var(--panel); border-left: 1px solid var(--border); backdrop-filter: blur(8px);
  padding: 1.2rem; overflow-y: auto;
}
.detail .close {
  position: absolute; top: 0.6rem; right: 0.7rem; background: none; border: none;
  color: var(--dim); font-size: 1.4rem; cursor: pointer; line-height: 1;
}
.detail-cover {
  width: 100%; aspect-ratio: 2 / 3; border-radius: 0.35rem; overflow: hidden;
  margin-bottom: 0.9rem; background: #1a130c; border: 1px solid var(--border);
}
.detail-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
#detailTitle { font-family: var(--serif); font-size: 1.25rem; margin: 0 0 0.2rem; }
.detail-author { color: var(--dim); font-style: italic; margin: 0 0 0.5rem; }
.detail-stars { color: var(--accent); letter-spacing: 0.1em; margin: 0 0 0.7rem; }
.detail-meta { font-size: 0.76rem; color: var(--dim); margin: 0 0 0.9rem; }
.detail-meta div { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.15rem 0; border-bottom: 1px dashed var(--border); }
.detail-meta dt { color: var(--dim); }
.detail-meta dd { margin: 0; color: var(--ink); text-align: right; }
.detail-ol { font-size: 0.76rem; }

/* share bar */
.share-bar {
  position: absolute; bottom: 0.9rem; left: 1rem; display: flex; gap: 0.5rem;
}

/* footer */
.foot {
  position: absolute; bottom: 0.7rem; right: 1rem; display: flex; gap: 1rem;
  font-size: 0.68rem; color: var(--dim);
}
.foot a { color: var(--dim); text-decoration: none; }
.foot a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .detail { width: 100vw; }
  .controls-panel { top: auto; bottom: 3rem; }
  .hint { display: none; }
  .foot { position: static; margin-top: 0.4rem; }
}