:root {
  --paper: #eef0ec;
  --surface: #ffffff;
  --surface-2: #e6e8e1;
  --ink: #1e2127;
  --muted: #5b6169;
  --line: #cfd3c9;
  --accent: #d94a30;
  --accent-ink: #fff4f0;
  --teal: #1f7d78;
  --ok: #1f7d4a;
  --warn: #b5791f;
  --err: #c23b2e;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Microsoft JhengHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14161a;
    --surface: #1b1e23;
    --surface-2: #20242b;
    --ink: #ece9e2;
    --muted: #9aa1a8;
    --line: #2b2f35;
    --accent: #ff6a4d;
    --accent-ink: #1b0a05;
    --teal: #45c0b8;
    --ok: #4bbf85;
    --warn: #e0aa4b;
    --err: #ff6b5e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
}
.app-header h1 {
  font-size: 18px;
  margin: 0;
  font-weight: 600;
}

.status-pill {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.status-unknown { color: var(--muted); }
.status-ok { color: var(--ok); border-color: var(--ok); }
.status-bad { color: var(--err); border-color: var(--err); }

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 20px;
  padding: 20px 24px 60px;
  max-width: 1280px;
  margin: 0 auto;
}
#panel-structure { grid-row: 1 / 4; }
#panel-vocal { grid-column: 2; grid-row: 1; }
#panel-params { grid-column: 2; grid-row: 2; }
#panel-result { grid-column: 2; grid-row: 3; }
#panel-sfx { grid-column: 1 / -1; }
#panel-history { grid-column: 1 / -1; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  #panel-structure, #panel-vocal, #panel-params, #panel-result, #panel-sfx, #panel-history {
    grid-column: 1; grid-row: auto;
  }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
}
.panel h2 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin: 0 0 14px;
}
.panel h3 {
  font-size: 13px;
  margin: 16px 0 6px;
  color: var(--ink);
}

textarea, input[type="text"], input[type="number"], select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  padding: 8px 10px;
  font-family: inherit;
  font-size: 14px;
}
textarea { resize: vertical; }

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--muted);
}
.field > span:first-child { font-size: 12px; }

.row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

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

.btn {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink);
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  width: 100%;
}
.btn.secondary { background: transparent; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.icon-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
}
.icon-btn:hover { color: var(--err); }

.template-bar {
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 16px;
}
.template-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.template-btn { font-size: 12px; padding: 6px 12px; }

#sections { display: flex; flex-direction: column; gap: 12px; margin-bottom: 12px; }

.section-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--surface-2);
}
.section-row.dragging { opacity: 0.4; }
.section-row-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.section-row-head select { flex: 1; }
.drag-handle {
  cursor: grab;
  color: var(--muted);
  font-size: 16px;
}

.status-box {
  margin-top: 12px;
  font-size: 13px;
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
}
.status-box.working { color: var(--warn); border-color: var(--warn); }
.status-box.done { color: var(--ok); border-color: var(--ok); }
.status-box.error { color: var(--err); border-color: var(--err); white-space: pre-wrap; }

#result-audio { width: 100%; margin-bottom: 10px; }

pre {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: pre-wrap;
  overflow-x: auto;
}

.sfx-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 14px;
}
.sfx-col {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--surface-2);
}
.sfx-col h3 { margin-top: 0; }
@media (max-width: 700px) {
  .sfx-two-col { grid-template-columns: 1fr; }
}

.history-list { display: flex; flex-direction: column; gap: 8px; max-height: 320px; overflow-y: auto; }
.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-2);
  cursor: pointer;
  font-size: 13px;
}
.history-item:hover { border-color: var(--accent); }
.history-item .history-meta { color: var(--muted); font-size: 11px; font-family: var(--font-mono); }