:root {
  --bg: #f4f1ea;
  --surface: #ffffff;
  --surface-2: #efe9dc;
  --text: #23201b;
  --text-soft: #6b6357;
  --accent: #a8321e;
  --accent-soft: #d98a5a;
  --line: #d8d0c0;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
  --kiai: #c9781a;
  --radius: 14px;
}

[data-theme="dark"] {
  --bg: #17140f;
  --surface: #221d16;
  --surface-2: #2c261d;
  --text: #efe8db;
  --text-soft: #b0a693;
  --accent: #e0684f;
  --accent-soft: #caa06b;
  --line: #3a3327;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
  --kiai: #f0a94a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--surface);
  border-bottom: 3px solid var(--accent);
}

.brand { display: flex; align-items: center; gap: 16px; }

.brand-mark {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--surface);
  background: var(--accent);
  padding: 10px 14px;
  border-radius: 10px;
  letter-spacing: 2px;
  writing-mode: vertical-rl;
}

.brand-text h1 { margin: 0; font-size: 1.35rem; letter-spacing: 1px; }
.brand-text p { margin: 2px 0 0; color: var(--text-soft); font-size: 0.9rem; }

.theme-toggle {
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text);
  font-size: 1.2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.15s;
}
.theme-toggle:hover { transform: rotate(-15deg); }

/* Tabs */
.tabs {
  display: flex;
  gap: 8px;
  padding: 14px 24px 0;
  max-width: 1160px;
  margin: 0 auto;
}
.tab {
  border: none;
  background: transparent;
  color: var(--text-soft);
  font-size: 1rem;
  font-weight: 600;
  padding: 10px 18px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
}
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

main { max-width: 1160px; margin: 0 auto; padding: 20px 24px 60px; }

.view { display: none; }
.view.is-active { display: block; }

/* Toolbar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-bottom: 14px;
}
.search {
  flex: 1 1 260px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
}
.search:focus { outline: 2px solid var(--accent-soft); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-soft);
  padding: 8px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.88rem;
}
.filter-btn.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.result-count { color: var(--text-soft); font-size: 0.85rem; margin: 4px 0 16px; }

/* Kata grid */
.kata-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.kata-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  position: relative;
  overflow: hidden;
}
.kata-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.kata-card[data-status="pending"] { opacity: 0.72; cursor: default; }
.kata-card[data-status="pending"]:hover { transform: none; box-shadow: none; }

.kata-card .cat-chip {
  position: absolute;
  top: 0; right: 0;
  font-size: 0.72rem;
  padding: 4px 10px;
  background: var(--surface-2);
  color: var(--text-soft);
  border-bottom-left-radius: 10px;
}
.kata-kanji { font-size: 1.5rem; font-weight: 800; margin: 6px 0 2px; }
.kata-romaji { color: var(--accent); font-size: 0.9rem; margin-bottom: 10px; }
.kata-meta { display: flex; gap: 12px; flex-wrap: wrap; color: var(--text-soft); font-size: 0.82rem; }
.kata-meta b { color: var(--text); font-weight: 700; }
.status-tag {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text-soft);
}

/* Overlay + detail */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 16px;
  overflow-y: auto;
  z-index: 50;
}
.overlay[hidden] { display: none; }
.detail-panel {
  background: var(--surface);
  border-radius: var(--radius);
  width: min(760px, 100%);
  padding: 26px;
  position: relative;
  box-shadow: var(--shadow);
}
.detail-close {
  position: absolute;
  top: 14px; right: 16px;
  border: none;
  background: transparent;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--text-soft);
  cursor: pointer;
}
.detail-header h2 { margin: 0; font-size: 1.7rem; }
.detail-header .sub { color: var(--accent); margin: 4px 0 8px; }
.detail-header .meaning { color: var(--text-soft); font-size: 0.92rem; }
.detail-header .badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.badge {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text-soft);
}

.detail-tabs { display: flex; gap: 6px; margin: 20px 0 4px; border-bottom: 1px solid var(--line); }
.dtab {
  border: none;
  background: transparent;
  color: var(--text-soft);
  padding: 8px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
}
.dtab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

.detail-body { padding-top: 16px; }

/* Move-by-move timeline */
.move-list { list-style: none; margin: 0; padding: 0; }
.move-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}
.move-no {
  font-weight: 800;
  color: var(--accent);
  background: var(--surface-2);
  border-radius: 8px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.move-item.is-kiai .move-no { background: var(--kiai); color: #fff; }
.move-tech { font-weight: 700; font-size: 1.02rem; }
.move-attrs { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0; }
.move-attr {
  font-size: 0.78rem;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text-soft);
}
.move-attr.breath { color: var(--accent-soft); }
.move-attr.kiai { background: var(--kiai); color: #fff; font-weight: 700; }
.move-point { color: var(--text-soft); font-size: 0.9rem; }

.prose { font-size: 0.98rem; }
.prose p { margin: 0 0 12px; }
.key-list { margin: 0; padding-left: 20px; }
.key-list li { margin-bottom: 10px; }

.empty-note {
  text-align: center;
  color: var(--text-soft);
  padding: 40px 10px;
  font-size: 0.95rem;
}

/* Training */
.training { display: grid; gap: 18px; }
.train-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.train-card h3 { margin: 0 0 4px; font-size: 1.2rem; }
.train-card .train-sub { color: var(--text-soft); font-size: 0.85rem; margin: 0 0 12px; }
.train-items { margin: 0; padding-left: 20px; }
.train-items li { margin-bottom: 8px; }
.train-items li b { color: var(--accent); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 20px 24px;
  color: var(--text-soft);
  font-size: 0.82rem;
  text-align: center;
}

@media (max-width: 600px) {
  .brand-text h1 { font-size: 1.1rem; }
  .detail-panel { padding: 20px 16px; }
  .move-item { grid-template-columns: 36px 1fr; gap: 10px; }
}