:root {
  --bg: #f3efe6;
  --ink: #1c1a16;
  --muted: #5c564c;
  --line: #d4cbb8;
  --accent: #2f5d50;
  --warn: #7a4e12;
  --panel: #fffcf5;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(ellipse at top left, #e7f0ea 0%, transparent 45%),
    linear-gradient(180deg, #efe8da, var(--bg));
  min-height: 100vh;
}
.top { padding: 1.25rem 1.5rem 0; }
.brand { margin: 0; font-weight: 600; letter-spacing: 0.02em; }
.warn { color: var(--warn); margin: 0.35rem 0 0; }
.layout { padding: 1rem 1.5rem 2.5rem; max-width: 52rem; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.4rem 1.5rem;
}
h1 { margin: 0 0 0.35rem; font-size: 1.55rem; }
h2 { margin: 1.4rem 0 0.6rem; font-size: 1.1rem; }
.meta, .hint { color: var(--muted); font-size: 0.92rem; }
.chapters, .stages { padding-left: 1.2rem; line-height: 1.7; }
.chapters li { margin: 0.35rem 0; }
.chapters a { color: var(--accent); }
.titles-form { margin: 0.35rem 0 1rem; }
.chapter-row {
  display: grid;
  grid-template-columns: 3.2rem 7.5rem minmax(8rem, 1fr) auto;
  gap: 0.4rem 0.55rem;
  align-items: center;
}
.chapter-id {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  font-size: 0.88rem;
}
.chapter-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin: 0.35rem 0 0;
}
.chapter-nav a { color: var(--accent); }
.chapter-nav-bottom {
  margin-top: 1.25rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
  justify-content: space-between;
}
.nav-disabled { color: var(--line); }
.chapter-row input[type="text"] { width: 100%; }
.chapter-flags { display: inline-flex; gap: 0.35rem; align-items: center; flex-wrap: wrap; }
.summary-block {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.summary-block h3 { margin: 1rem 0 0.4rem; font-size: 1rem; }
.summary-block p { line-height: 1.45; }
form.inline { display: inline; margin-left: 0.4rem; }
.badge {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--warn);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.05rem 0.5rem;
  margin-left: 0.35rem;
  vertical-align: middle;
}
.speakers-form {
  display: grid;
  gap: 0.55rem;
  max-width: 28rem;
  margin: 0.5rem 0 1rem;
}
.speakers-row {
  display: grid;
  grid-template-columns: 13.5rem 1fr;
  gap: 0.5rem;
  align-items: center;
}
.speakers-row label { margin: 0; font-size: 0.88rem; color: var(--muted); }
.speakers-list { padding-left: 1.2rem; }
.spk-select { width: auto; min-width: 11rem; }
.actions { display: grid; gap: 1rem; margin-top: 1.25rem; }
.action {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  display: grid;
  gap: 0.5rem;
}
label { display: grid; gap: 0.35rem; font-size: 0.92rem; }
select, input[type="file"], input[type="url"], textarea {
  font: inherit;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.btn {
  font: inherit;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
  cursor: pointer;
  width: fit-content;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.compact { padding: 0.15rem 0.5rem; font-size: 0.8rem; }
.footer-links { margin-top: 1.5rem; font-size: 0.9rem; color: var(--muted); }
.footer-links a { color: var(--accent); }
.player {
  margin: 1rem 0 0.5rem;
  padding: 0.75rem;
  border: 1px dashed var(--line);
  border-radius: 10px;
  background: #faf7f0;
}
.player .row { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.player input[type="range"] { flex: 1; min-width: 10rem; }
.chapter-text p { margin: 0.55rem 0; line-height: 1.45; }
.tc { font-variant-numeric: tabular-nums; color: var(--muted); margin-right: 0.35rem; }
.spk { font-size: 0.85rem; color: var(--accent); margin-right: 0.35rem; }
.chapter-edit { width: 100%; margin-top: 0.75rem; line-height: 1.4; }
.edit-row { margin: 0.65rem 0; }
.edit-row textarea { width: 100%; line-height: 1.4; }
.toolbar { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; margin: 0.75rem 0; }
.hidden { display: none !important; }
.upload { display: grid; gap: 0.9rem; max-width: 28rem; }
.trim-demo { margin: 0; }
.progress-track {
  margin: 1rem 0 0.4rem;
  height: 0.7rem;
  background: #efe8da;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.35s ease;
}
.status-line {
  font-size: 1.05rem;
  margin: 0.75rem 0 0.25rem;
  color: var(--text);
}