/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-text: #1a1a2e;
  --color-text-secondary: #555;
  --color-border: #e0e0e0;
  --color-primary: #2563eb;
  --color-primary-light: #dbeafe;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);

  /* Domain colors */
  --domain-N: #e74c3c;
  --domain-S: #3498db;
  --domain-G: #9b59b6;
  --domain-R: #e67e22;
  --domain-A: #2ecc71;
  --domain-F: #1abc9c;
  --domain-D: #f39c12;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* === Header === */
.header {
  background: var(--color-text);
  color: #fff;
  padding: 24px 0 20px;
  text-align: center;
}
.header h1 { font-size: 1.5rem; font-weight: 700; }
.subtitle { font-size: 0.9rem; opacity: 0.8; margin-top: 4px; }
.header-links { margin-top: 8px; font-size: 0.8rem; opacity: 0.7; }
.header-links a { color: #93c5fd; }
.sep { margin: 0 6px; opacity: 0.5; }

/* === Disclaimer === */
.disclaimer {
  background: #fef3c7;
  color: #92400e;
  font-size: 0.82rem;
  padding: 8px 0;
  text-align: center;
  line-height: 1.5;
}
.disclaimer a { color: #92400e; font-weight: 600; text-decoration: underline; }

/* === Tabs === */
.tabs {
  display: flex;
  gap: 0;
  margin-top: 20px;
  border-bottom: 2px solid var(--color-border);
}
.tab {
  padding: 10px 20px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
}
.tab:hover { color: var(--color-primary); }
.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

/* === Filters === */
.filters {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  margin-top: 16px;
  box-shadow: var(--shadow);
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}
.filter-group { display: flex; flex-direction: column; gap: 4px; }
.filter-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.filter-group select, .filter-group input {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: #fff;
  min-width: 160px;
}
.filter-group input { min-width: 200px; }
.filter-group select:focus, .filter-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}
.btn-clear {
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
}
.btn-clear:hover { background: var(--color-bg); }

/* Domain chips */
.domain-chips {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.domain-chip {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.82rem;
  cursor: pointer;
  border: 2px solid;
  background: #fff;
  transition: all 0.15s;
  font-weight: 500;
}
.domain-chip.active {
  color: #fff;
}
.domain-chip[data-domain="N"] { border-color: var(--domain-N); color: var(--domain-N); }
.domain-chip[data-domain="S"] { border-color: var(--domain-S); color: var(--domain-S); }
.domain-chip[data-domain="G"] { border-color: var(--domain-G); color: var(--domain-G); }
.domain-chip[data-domain="R"] { border-color: var(--domain-R); color: var(--domain-R); }
.domain-chip[data-domain="A"] { border-color: var(--domain-A); color: var(--domain-A); }
.domain-chip[data-domain="F"] { border-color: var(--domain-F); color: var(--domain-F); }
.domain-chip[data-domain="D"] { border-color: var(--domain-D); color: var(--domain-D); }
.domain-chip[data-domain="N"].active { background: var(--domain-N); }
.domain-chip[data-domain="S"].active { background: var(--domain-S); }
.domain-chip[data-domain="G"].active { background: var(--domain-G); }
.domain-chip[data-domain="R"].active { background: var(--domain-R); }
.domain-chip[data-domain="A"].active { background: var(--domain-A); }
.domain-chip[data-domain="F"].active { background: var(--domain-F); }
.domain-chip[data-domain="D"].active { background: var(--domain-D); }

/* Aspect chips for competency view */
.aspect-chip[data-aspect="A"] { border-color: var(--domain-N); color: var(--domain-N); }
.aspect-chip[data-aspect="B"] { border-color: var(--domain-S); color: var(--domain-S); }
.aspect-chip[data-aspect="C"] { border-color: var(--domain-A); color: var(--domain-A); }
.aspect-chip[data-aspect="A"].active { background: var(--domain-N); color: #fff; }
.aspect-chip[data-aspect="B"].active { background: var(--domain-S); color: #fff; }
.aspect-chip[data-aspect="C"].active { background: var(--domain-A); color: #fff; }

/* For performance view, domain letters are lowercase */
.domain-chip[data-domain="n"] { border-color: var(--domain-N); color: var(--domain-N); }
.domain-chip[data-domain="s"] { border-color: var(--domain-S); color: var(--domain-S); }
.domain-chip[data-domain="g"] { border-color: var(--domain-G); color: var(--domain-G); }
.domain-chip[data-domain="r"] { border-color: var(--domain-R); color: var(--domain-R); }
.domain-chip[data-domain="a"] { border-color: var(--domain-A); color: var(--domain-A); }
.domain-chip[data-domain="f"] { border-color: var(--domain-F); color: var(--domain-F); }
.domain-chip[data-domain="d"] { border-color: var(--domain-D); color: var(--domain-D); }
.domain-chip[data-domain="n"].active { background: var(--domain-N); }
.domain-chip[data-domain="s"].active { background: var(--domain-S); }
.domain-chip[data-domain="g"].active { background: var(--domain-G); }
.domain-chip[data-domain="r"].active { background: var(--domain-R); }
.domain-chip[data-domain="a"].active { background: var(--domain-A); }
.domain-chip[data-domain="f"].active { background: var(--domain-F); }
.domain-chip[data-domain="d"].active { background: var(--domain-D); }

/* === Results === */
.results-header {
  margin: 16px 0 8px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.results {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 40px;
}

/* === Card === */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--color-border);
}
.card[data-domain="N"], .card[data-domain="n"] { border-left-color: var(--domain-N); }
.card[data-domain="S"], .card[data-domain="s"] { border-left-color: var(--domain-S); }
.card[data-domain="G"], .card[data-domain="g"] { border-left-color: var(--domain-G); }
.card[data-domain="R"], .card[data-domain="r"] { border-left-color: var(--domain-R); }
.card[data-domain="A"], .card[data-domain="a"] { border-left-color: var(--domain-A); }
.card[data-domain="F"], .card[data-domain="f"] { border-left-color: var(--domain-F); }
.card[data-domain="D"], .card[data-domain="d"] { border-left-color: var(--domain-D); }

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.card-code {
  font-family: "SF Mono", "Fira Code", monospace;
  font-weight: 700;
  font-size: 1rem;
}
.card-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}
.badge-domain {
  color: #fff;
}
.badge-domain[data-domain="N"], .badge-domain[data-domain="n"] { background: var(--domain-N); }
.badge-domain[data-domain="S"], .badge-domain[data-domain="s"] { background: var(--domain-S); }
.badge-domain[data-domain="G"], .badge-domain[data-domain="g"] { background: var(--domain-G); }
.badge-domain[data-domain="R"], .badge-domain[data-domain="r"] { background: var(--domain-R); }
.badge-domain[data-domain="A"], .badge-domain[data-domain="a"] { background: var(--domain-A); }
.badge-domain[data-domain="F"], .badge-domain[data-domain="f"] { background: var(--domain-F); }
.badge-domain[data-domain="D"], .badge-domain[data-domain="d"] { background: var(--domain-D); }

.badge-stage {
  background: var(--color-bg);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.badge-class {
  background: #fef3c7;
  color: #92400e;
}

.card-body { margin-top: 10px; }
.card-description {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.7;
}

.card-meta {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}
.card-meta summary {
  cursor: pointer;
  user-select: none;
}
.card-meta-content {
  margin-top: 6px;
  padding-left: 12px;
  border-left: 2px solid var(--color-border);
}

.card-refs {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.card-refs-label {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
}
.ref-link {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: "SF Mono", "Fira Code", monospace;
  background: var(--color-primary-light);
  color: var(--color-primary);
  cursor: pointer;
  transition: background 0.15s;
}
.ref-link:hover {
  background: #bfdbfe;
  text-decoration: none;
}

.card-report {
  margin-top: 8px;
  text-align: right;
}
.card-report a {
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  opacity: 0.6;
}
.card-report a:hover { opacity: 1; }

/* === Footer === */
.footer {
  margin-top: 40px;
  padding: 20px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.footer p { margin: 4px 0; }

/* === Responsive === */
@media (max-width: 640px) {
  .header h1 { font-size: 1.2rem; }
  .filter-group select, .filter-group input { min-width: 100%; }
  .filter-row { flex-direction: column; }
  .tabs { overflow-x: auto; }
  .tab { font-size: 0.85rem; padding: 8px 14px; white-space: nowrap; }
  .card-header { flex-direction: column; align-items: flex-start; gap: 6px; }
}