/* 師傅的八字排盤 — blue-gold mobile-first shell */
:root {
  --blue-900: #0d2d5c;
  --blue-800: #1a4a8a;
  --blue-700: #2563a8;
  --blue-100: #e8f0fa;
  --gold: #d4a84b;
  --gold-dark: #b8892e;
  --gold-soft: #f5e6c8;
  --ink: #1a1a1a;
  --muted: #667788;
  --bg: #f4f6fa;
  --card: #ffffff;
  --danger: #b45309;
  --radius: 14px;
  --nav-h: 64px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --font: system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  -webkit-tap-highlight-color: transparent;
}
body { padding-bottom: calc(var(--nav-h) + var(--safe-b)); }

.app { max-width: 480px; margin: 0 auto; min-height: 100vh; position: relative; }

.topbar {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-900));
  color: #fff;
  padding: 1rem 1.1rem 1.15rem;
  border-bottom: 3px solid var(--gold);
}
.topbar__title { margin: 0; font-size: 1.2rem; font-weight: 700; letter-spacing: 0.04em; }
.topbar__sub { margin: 0.25rem 0 0; font-size: 0.75rem; opacity: 0.85; color: var(--gold-soft); }

.main { padding: 1rem 1rem 1.5rem; }
.view[hidden] { display: none !important; }
.view__title {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
  color: var(--blue-800);
  border-left: 4px solid var(--gold);
  padding-left: 0.55rem;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.85rem;
  box-shadow: 0 1px 4px rgba(13, 45, 92, 0.08);
  border: 1px solid rgba(26, 74, 138, 0.08);
}
.card__h { margin: 0 0 0.6rem; font-size: 0.95rem; color: var(--blue-800); }

.form .field { display: block; margin-bottom: 0.85rem; }
.field__label { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 0.3rem; }
.field input[type="text"],
.field input[type="number"],
.field input[type="datetime-local"],
.search input {
  width: 100%;
  padding: 0.7rem 0.75rem;
  border: 1px solid #c9d4e3;
  border-radius: 10px;
  font-size: 1rem;
  background: #fff;
}
.field input:focus,
.search input:focus {
  outline: 2px solid var(--blue-700);
  border-color: var(--blue-700);
}
.field--row { border: none; margin: 0 0 0.85rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.field--row .field__label,
.field--row legend { width: 100%; padding: 0; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid #c9d4e3;
  background: #fff;
  font-size: 0.95rem;
  cursor: pointer;
}
.chip:has(input:checked) {
  background: var(--blue-800);
  color: #fff;
  border-color: var(--blue-800);
}
.chip input { accent-color: var(--gold); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }

.hint { font-size: 0.78rem; color: var(--muted); margin: 0.4rem 0 0.8rem; line-height: 1.45; }
.banner {
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  font-size: 0.85rem;
  margin-bottom: 0.85rem;
  line-height: 1.4;
}
.banner--warn { background: #fff7ed; color: var(--danger); border: 1px solid #fed7aa; }
.banner--info { background: var(--blue-100); color: var(--blue-900); border: 1px solid #bfd0e8; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  border-radius: 999px;
  padding: 0.75rem 1.4rem;
}
.btn--primary {
  width: 100%;
  background: linear-gradient(90deg, var(--blue-700), var(--blue-800));
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(26, 74, 138, 0.35);
  border: 2px solid var(--gold);
}
.btn--primary:active { transform: scale(0.98); }
.btn--ghost {
  background: transparent;
  color: var(--blue-800);
  font-size: 1.4rem;
  padding: 0.35rem 0.75rem;
  min-width: 44px;
  min-height: 44px;
}

.meta-line { margin: 0.25rem 0; font-size: 0.9rem; }
.meta-k { color: var(--muted); display: inline-block; min-width: 2.5rem; }

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
  text-align: center;
  padding: 0.75rem 0.5rem;
}
.pillars__head {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.pillars__stem, .pillars__branch {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--blue-900);
  line-height: 1.3;
}
.pillars__col--day .pillars__stem {
  color: var(--gold-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.pillars__slot {
  margin-top: 0.35rem;
  font-size: 0.65rem;
  color: var(--muted);
  background: var(--blue-100);
  border-radius: 6px;
  padding: 0.2rem 0.15rem;
}

.stub-list { margin: 0; padding-left: 1.1rem; font-size: 0.88rem; line-height: 1.7; color: var(--ink); }
.stub-line { margin: 0.3rem 0; font-size: 0.88rem; }

.search { display: block; margin-bottom: 0.85rem; }
.library-list { list-style: none; margin: 0; padding: 0; }
.library-item {
  background: var(--card);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 0.55rem;
  border: 1px solid rgba(26, 74, 138, 0.1);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  text-align: left;
  font-family: inherit;
  font-size: 0.95rem;
  color: inherit;
}
.library-item:hover, .library-item:focus { border-color: var(--gold); outline: none; }
.library-item__name { font-weight: 600; color: var(--blue-900); }
.library-item__meta { font-size: 0.75rem; color: var(--muted); }

.almanac-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.65rem;
}
.almanac-title { margin: 0; font-size: 1rem; color: var(--blue-800); }
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.25rem;
}
.cal-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 0.85rem;
  background: var(--bg);
  border: none;
  font-family: inherit;
  color: var(--ink);
  cursor: pointer;
  padding: 0;
}
.cal-cell--empty { background: transparent; cursor: default; }
.cal-cell--today {
  background: var(--blue-800);
  color: #fff;
  font-weight: 700;
  box-shadow: inset 0 0 0 2px var(--gold);
}
.cal-cell--selected { outline: 2px solid var(--gold); }

.bottom-nav {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 100%;
  max-width: 480px;
  height: calc(var(--nav-h) + var(--safe-b));
  padding-bottom: var(--safe-b);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-top: 1px solid #dde3ee;
  box-shadow: 0 -4px 16px rgba(13, 45, 92, 0.06);
  z-index: 50;
}
.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  background: none;
  border: none;
  font-family: inherit;
  color: var(--muted);
  cursor: pointer;
  padding: 0.35rem;
  min-height: 44px;
}
.nav-item__icon { font-size: 1.1rem; line-height: 1; }
.nav-item__label { font-size: 0.72rem; }
.nav-item[aria-current="page"] {
  color: var(--blue-800);
  font-weight: 700;
}
.nav-item[aria-current="page"] .nav-item__icon { color: var(--gold-dark); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

@media (min-width: 481px) {
  .app { box-shadow: 0 0 40px rgba(13, 45, 92, 0.12); }
}