:root {
  --bg: #f6f1e7;
  --panel: #fffdf8;
  --ink: #2b2620;
  --muted: #7a6f5f;
  --accent: #b3382c;       /* seal red */
  --accent-soft: #f3ded9;
  --gold: #a9812e;
  --line: #e5dcc9;
  --shadow: 0 10px 30px rgba(60, 45, 20, 0.10);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171412;
    --panel: #201c18;
    --ink: #ece5d8;
    --muted: #a2968a;
    --accent: #e05a48;
    --accent-soft: #3a2622;
    --gold: #d1a94f;
    --line: #383028;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: Georgia, "Times New Roman", "Noto Serif TC", serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.55;
}

main {
  width: min(680px, 92vw);
  margin: 0 auto;
  flex: 1;
}

.hidden { display: none !important; }

/* header ------------------------------------------------------------ */

.site-header {
  width: min(680px, 92vw);
  margin: 2.2rem auto 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 0.9rem; }

.brand-seal {
  display: grid;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  background: var(--accent);
  color: #fff8f0;
  font-size: 1.9rem;
  border-radius: 0.55rem;
  box-shadow: var(--shadow);
  font-family: "Noto Serif TC", Georgia, serif;
}

.brand-text h1 { font-size: 1.35rem; font-weight: 600; letter-spacing: 0.01em; }
.brand-sub { color: var(--muted); font-size: 0.9rem; font-style: italic; }

.today-date { color: var(--muted); font-size: 0.95rem; }

/* panels ------------------------------------------------------------ */

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: var(--shadow);
  padding: 2.2rem 2.4rem;
  margin-bottom: 1.6rem;
}

/* loading ----------------------------------------------------------- */

.loading { text-align: center; padding: 3.5rem 2rem; }

.ink-spinner {
  width: 4.2rem;
  height: 4.2rem;
  margin: 0 auto 1.2rem;
  border-radius: 50%;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  display: grid;
  place-items: center;
  animation: spin 1.6s linear infinite;
}

.ink-spinner span {
  font-size: 1.6rem;
  animation: spin-reverse 1.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-reverse { to { transform: rotate(-360deg); } }

#loadingMsg { font-size: 1.1rem; }
.loading-hint { color: var(--muted); font-size: 0.9rem; margin-top: 0.5rem; }

/* error ------------------------------------------------------------- */

.error { text-align: center; }
.error h2 { color: var(--accent); margin-bottom: 0.6rem; }
.error p { color: var(--muted); margin-bottom: 1.2rem; white-space: pre-wrap; }

/* word card --------------------------------------------------------- */

.word-card { text-align: center; }

.card-top {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
}

.badge {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
}

.badge.pos { color: var(--accent); border-color: var(--accent-soft); background: var(--accent-soft); }

.hanzi {
  font-family: "Noto Serif TC", "MingLiU", Georgia, serif;
  font-size: clamp(4.2rem, 16vw, 7rem);
  line-height: 1.15;
  margin: 0.4rem 0 0.6rem;
}

.romanization {
  font-size: 1.7rem;
  color: var(--accent);
  font-style: italic;
}

.pronunciation {
  color: var(--muted);
  font-size: 1rem;
  margin-top: 0.25rem;
}
.pronunciation em { color: var(--ink); font-style: normal; font-weight: 600; }

.meaning {
  font-size: 1.25rem;
  margin: 1.3rem auto 0;
  max-width: 34rem;
}

/* divider ----------------------------------------------------------- */

.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.8rem 0 1.2rem;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--line);
}

/* example ----------------------------------------------------------- */

.example { max-width: 36rem; margin: 0 auto; }
.ex-hakka { font-family: "Noto Serif TC", Georgia, serif; font-size: 1.45rem; }
.ex-roman { color: var(--accent); font-style: italic; margin-top: 0.2rem; }
.ex-english { color: var(--muted); margin-top: 0.35rem; }

/* meta -------------------------------------------------------------- */

.meta-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 1rem;
  margin-top: 1.8rem;
  text-align: left;
}

@media (max-width: 540px) { .meta-grid { grid-template-columns: 1fr; } }

.meta-block {
  background: color-mix(in srgb, var(--panel) 60%, var(--bg));
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  padding: 0.9rem 1.1rem;
}

.meta-block h3 {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.3rem;
}
.meta-block p { font-size: 0.95rem; }

/* actions ----------------------------------------------------------- */

.actions { margin-top: 1.8rem; }

.btn {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.55rem 1.4rem;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease;
}
.btn:active { transform: scale(0.97); }

.btn.primary {
  background: var(--accent);
  color: #fff8f0;
  border: none;
}

.btn.ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn.ghost:hover { background: var(--accent-soft); }
.btn:disabled { opacity: 0.5; cursor: wait; }

/* history ----------------------------------------------------------- */

.history-section { margin: 2.4rem 0 2rem; }

.history-title {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 0.9rem;
}
#historyCount { color: var(--gold); }

.history-list { list-style: none; display: grid; gap: 0.5rem; }

.history-item {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  padding: 0.65rem 1rem;
}

.hi-hanzi { font-family: "Noto Serif TC", Georgia, serif; font-size: 1.35rem; min-width: 3.4rem; }
.hi-roman { color: var(--accent); font-style: italic; min-width: 6.5rem; }
.hi-meaning { color: var(--muted); font-size: 0.9rem; flex: 1; }
.hi-date { color: var(--muted); font-size: 0.75rem; white-space: nowrap; }

/* footer ------------------------------------------------------------ */

.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 1.4rem 0 1.8rem;
}