/* ══════════════════════════════════════════════════════
   紫微斗數排盤 —— 樣式

   兩套主題（宣紙／星空）都靠 CSS 變數切換，SVG 命盤也吃同一組變數，
   所以換主題不必重繪、也不必另外出一張圖。
   ══════════════════════════════════════════════════════ */

/* ── 宣紙（日間） ─────────────────────────────── */
:root {
  --paper: #F4EDDC; --paper-2: #EFE6D0; --paper-3: #E4D7B4;
  --ink: #1F1A12; --ink-soft: #5A5040;
  --cinnabar: #A8281A; --cinnabar-soft: rgba(168, 40, 26, 0.14);
  --gold: #9A7B33; --gold-soft: rgba(154, 123, 51, 0.20);
  --line: #B49E63; --line-soft: #CFC197;
  --lu: #1F7A4D; --quan: #A8281A; --ke: #8A6A21; --ji: #43403A;
  --trine-bg: rgba(154, 123, 51, 0.10);
  /* SVG 用的不透明版本（半透明會讓底下的金色格線透上來） */
  --trine-solid: #EBE0C4; --origin-solid: #F0DCCF; --body-solid: #E7DBB8;
  --focus: #7A5CD8;
}
/* ── 星空（夜間） ─────────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E1420; --paper-2: #141C2C; --paper-3: #1B2436;
    --ink: #F0E6D2; --ink-soft: #9AA6BC;
    --cinnabar: #E8705A; --cinnabar-soft: rgba(232, 112, 90, 0.18);
    --gold: #C6A45C; --gold-soft: rgba(198, 164, 92, 0.22);
    --line: #2E3B52; --line-soft: #3A4A66;
    --lu: #4FB587; --quan: #E8705A; --ke: #C6A45C; --ji: #8A93A5;
    --trine-bg: rgba(198, 164, 92, 0.11);
    --trine-solid: #1B2331; --origin-solid: #2A1D22; --body-solid: #232A32;
    --focus: #A48CF0;
  }
}
:root[data-theme="dark"] {
  --paper: #0E1420; --paper-2: #141C2C; --paper-3: #1B2436;
  --ink: #F0E6D2; --ink-soft: #9AA6BC;
  --cinnabar: #E8705A; --cinnabar-soft: rgba(232, 112, 90, 0.18);
  --gold: #C6A45C; --gold-soft: rgba(198, 164, 92, 0.22);
  --line: #2E3B52; --line-soft: #3A4A66;
  --lu: #4FB587; --quan: #E8705A; --ke: #C6A45C; --ji: #8A93A5;
  --trine-bg: rgba(198, 164, 92, 0.11);
  --trine-solid: #1B2331; --origin-solid: #2A1D22; --body-solid: #232A32;
  --focus: #A48CF0;
}
:root[data-theme="light"] {
  --paper: #F4EDDC; --paper-2: #EFE6D0; --paper-3: #E4D7B4;
  --ink: #1F1A12; --ink-soft: #5A5040;
  --cinnabar: #A8281A; --cinnabar-soft: rgba(168, 40, 26, 0.14);
  --gold: #9A7B33; --gold-soft: rgba(154, 123, 51, 0.20);
  --line: #B49E63; --line-soft: #CFC197;
  --lu: #1F7A4D; --quan: #A8281A; --ke: #8A6A21; --ji: #43403A;
  --trine-bg: rgba(154, 123, 51, 0.10);
  --trine-solid: #EBE0C4; --origin-solid: #F0DCCF; --body-solid: #E7DBB8;
  --focus: #7A5CD8;
}

* { box-sizing: border-box; }
/* hidden 屬性必須贏過自訂的 display（例如 .form-wrap 的 flex），
   否則切到結果頁時表單不會消失 */
[hidden] { display: none !important; }
html { font-size: 16px; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(ellipse at top, var(--paper-2), var(--paper) 60%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  min-height: 100vh;
  padding: 1.5rem 1.25rem 4rem;
  line-height: 1.6;
}
h1, h2, h3 { font-family: "Noto Serif TC", "Songti TC", "PMingLiU", "STSong", serif; }
a { color: var(--cinnabar); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.page { max-width: 1080px; margin: 0 auto; }

/* ── 工具列 ─────────────────────────────────── */
.toolbar {
  display: flex; justify-content: flex-end; gap: 0.75rem;
  margin-bottom: 1.25rem; flex-wrap: wrap;
}
.switch {
  display: inline-flex; border: 1px solid var(--line);
  border-radius: 999px; overflow: hidden; background: var(--paper-2);
}
.switch button {
  appearance: none; border: 0; background: transparent; color: var(--ink-soft);
  font-family: inherit; font-size: 0.82rem; padding: 0.35rem 0.85rem;
  cursor: pointer; line-height: 1.5;
}
.switch button:hover { color: var(--ink); }
.switch button[aria-pressed="true"] {
  background: var(--gold); color: var(--paper); font-weight: 700;
}

header { text-align: center; margin-bottom: 1.75rem; }
.eyebrow { font-size: 0.76rem; letter-spacing: 0.32em; color: var(--gold); margin: 0 0 0.6rem; }
h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 700;
  margin: 0 0 0.4rem; text-wrap: balance; letter-spacing: 0.08em;
}
.sub { font-size: 0.95rem; color: var(--ink-soft); margin: 0; }

/* ── 表單 ───────────────────────────────────── */
.form-wrap { display: flex; justify-content: center; }
.form {
  width: 100%; max-width: 520px;
  background: var(--paper-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 1.6rem 1.5rem;
  display: flex; flex-direction: column; gap: 1.15rem;
}
.field { display: flex; flex-direction: column; gap: 0.45rem; }
.field > label, .field .label {
  font-size: 0.92rem; font-weight: 700; color: var(--gold); letter-spacing: 0.08em;
}
.form input[type="text"], .form input[type="number"], .form select {
  font-family: inherit; font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 6px; padding: 0.55rem 0.7rem; width: 100%;
}
.form input::placeholder { color: var(--ink-soft); opacity: 0.7; }
.form select { cursor: pointer; }

.radios { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.radios label {
  display: inline-flex; align-items: center; gap: 0.4rem;
  border: 1px solid var(--line); border-radius: 6px;
  padding: 0.45rem 1rem; cursor: pointer; background: var(--paper);
  font-size: 0.95rem;
}
.radios input { accent-color: var(--cinnabar); margin: 0; }
.radios label:has(input:checked) {
  border-color: var(--cinnabar); background: var(--cinnabar-soft); font-weight: 700;
}

.date-row { display: flex; align-items: center; gap: 0.4rem; }
.date-row input { text-align: center; }
.date-row #f-year { flex: 1.6; }
.date-row #f-month, .date-row #f-day { flex: 1; }
.date-row .unit { color: var(--ink-soft); font-size: 0.9rem; flex-shrink: 0; }

.hint { font-size: 0.8rem; color: var(--ink-soft); margin: 0; line-height: 1.55; }
.hint.privacy { border-top: 1px solid var(--line-soft); padding-top: 0.9rem; margin-top: 0.2rem; }

.form-error {
  margin: 0; font-size: 0.88rem; font-weight: 700;
  color: var(--cinnabar); background: var(--cinnabar-soft);
  border-radius: 6px; padding: 0.55rem 0.7rem;
}

.actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.btn {
  font-family: inherit; font-size: 0.95rem; cursor: pointer;
  border: 1px solid var(--line); border-radius: 6px;
  background: var(--paper); color: var(--ink);
  padding: 0.6rem 1.3rem; line-height: 1.5;
}
.btn:hover { border-color: var(--gold); }
.btn.primary {
  background: var(--cinnabar); border-color: var(--cinnabar);
  color: #FFF7EC; font-weight: 700; flex: 1;
}
.btn.primary:hover { filter: brightness(1.1); }
.btn[disabled] { opacity: 0.55; cursor: progress; }

/* ── 結果列 ─────────────────────────────────── */
.result-bar {
  display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center;
  margin-bottom: 1rem;
}
.toast { font-size: 0.85rem; color: var(--lu); font-weight: 700; }

/* ── SVG 命盤 ───────────────────────────────── */
.board-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.board-scroll svg { display: block; width: 100%; height: auto; min-width: 760px; }

/* ── 文字版命盤 ─────────────────────────────── */
.card-board { display: flex; flex-direction: column; gap: 0.6rem; }
.card-board .cell {
  background-color: var(--paper-2);
  border: 1px solid var(--line); border-left: 3px solid transparent;
  border-radius: 6px; padding: 0.7rem 0.8rem;
  display: flex; flex-direction: column; gap: 0.35rem;
}
.card-board .cell.trine { background-image: linear-gradient(var(--trine-bg), var(--trine-bg)); }
.card-board .cell.current { outline: 2px dashed var(--gold); outline-offset: -5px; }
.card-board .cell.origin {
  background-image: linear-gradient(var(--cinnabar-soft), var(--cinnabar-soft));
  border-left-color: var(--cinnabar);
}
.card-board .cell.body {
  background-image: linear-gradient(var(--gold-soft), var(--gold-soft));
  border-left-color: var(--gold);
}
.card-board .center {
  background-color: var(--paper-3); border: 2px solid var(--gold);
  align-items: center; text-align: center; gap: 0.55rem; padding: 1rem;
}
.cell-top {
  display: flex; justify-content: space-between; gap: 0.4rem;
  font-size: 0.76rem; color: var(--ink-soft); font-variant-numeric: tabular-nums;
}
.ganzhi { letter-spacing: 0.05em; font-weight: 600; }
.palace-name-row { display: flex; align-items: center; gap: 0.4rem; }
.palace-name { font-size: 1.22rem; font-weight: 700; letter-spacing: 0.06em; }
.seal {
  width: 1.4rem; height: 1.4rem; border: 1.5px solid var(--cinnabar);
  color: var(--cinnabar); font-family: "Noto Serif TC", serif;
  font-size: 0.8rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px; flex-shrink: 0;
}
.seal.gold { border-color: var(--gold); color: var(--gold); }
.stars { display: flex; flex-direction: column; gap: 0.25rem; }
.star-row { display: flex; flex-wrap: wrap; gap: 0.32rem; align-items: baseline; }
.star { font-size: 1.02rem; font-weight: 600; }
.star.minor { font-size: 0.88rem; font-weight: 500; color: var(--ink-soft); }
.bright { font-size: 0.74rem; color: var(--ink-soft); }
.ages {
  font-size: 0.72rem; color: var(--ink-soft);
  font-variant-numeric: tabular-nums; line-height: 1.45;
}
.card-board .fe { font-size: 0.76rem; letter-spacing: 0.24em; color: var(--gold); margin: 0; }
.card-board .stamp {
  width: 3.6rem; height: 3.6rem; border: 2px solid var(--cinnabar);
  border-radius: 4px; color: var(--cinnabar);
  display: flex; align-items: center; justify-content: center;
  font-family: "Noto Serif TC", serif; font-size: 1.05rem;
  font-weight: 700; letter-spacing: 0.1em; writing-mode: vertical-rl;
}
.card-board .person {
  font-family: "Noto Serif TC", serif; font-size: 1.15rem;
  font-weight: 700; letter-spacing: 0.25em; margin: 0;
}
.card-board .bazi { font-size: 1.2rem; font-weight: 700; letter-spacing: 0.15em; margin: 0; }
.card-board dl {
  display: grid; grid-template-columns: auto auto auto auto;
  gap: 0.2rem 0.7rem; font-size: 0.86rem; margin: 0; text-align: left;
}
.card-board dt { color: var(--ink-soft); }
.card-board dd { margin: 0; font-weight: 600; }

/* 四化色點（兩種盤面共用） */
.mutagen {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.25rem; height: 1.25rem; border-radius: 50%;
  background: var(--ink-soft); color: var(--paper);
  font-size: 0.72rem; font-weight: 700; line-height: 1;
}
.mutagen.lu { background: var(--lu); }
.mutagen.quan { background: var(--quan); }
.mutagen.ke { background: var(--ke); }
.mutagen.ji { background: var(--ji); }

/* ── 圖例 ───────────────────────────────────── */
.legend {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem;
  margin-top: 0.75rem; font-size: 0.8rem; color: var(--ink-soft);
}
.legend span { display: inline-flex; align-items: center; gap: 0.4rem; }
.legend i {
  width: 1.05rem; height: 1.05rem; border-radius: 2px;
  border: 1px solid var(--line); background-color: var(--paper-2); flex-shrink: 0;
}
.legend i.origin {
  background-image: linear-gradient(var(--cinnabar-soft), var(--cinnabar-soft));
  border-left: 3px solid var(--cinnabar);
}
.legend i.body {
  background-image: linear-gradient(var(--gold-soft), var(--gold-soft));
  border-left: 3px solid var(--gold);
}
.legend i.trine { background-image: linear-gradient(var(--trine-bg), var(--trine-bg)); }
.legend i.current { border: 2px dashed var(--gold); }
.legend i.mutagen {
  width: 1.25rem; height: 1.25rem; border: 0; border-radius: 50%;
  font-style: normal; font-size: 0.72rem;
  display: inline-flex; align-items: center; justify-content: center;
}

/* ── 簡易解析 ───────────────────────────────── */
.analysis { margin-top: 2.5rem; }
.analysis-head {
  border-bottom: 2px solid var(--gold);
  padding-bottom: 0.5rem; margin-bottom: 0.6rem;
}
.analysis-head h2 { font-size: 1.35rem; margin: 0; letter-spacing: 0.1em; }
.disclaimer { font-size: 0.78rem; color: var(--ink-soft); margin: 0 0 1.25rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1rem; }
.card {
  background: var(--paper-2); border: 1px solid var(--line);
  border-radius: 6px; padding: 1rem 1.1rem;
}
.card.wide { grid-column: 1 / -1; }
.card h3 { font-size: 1.02rem; margin: 0 0 0.7rem; color: var(--gold); letter-spacing: 0.12em; }
.card p { margin: 0 0 0.55rem; font-size: 0.92rem; }
.card p:last-child { margin-bottom: 0; }
.card p.note { color: var(--ink-soft); font-size: 0.85rem; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 0.5rem 0.9rem; font-size: 0.9rem; }
.kv dt { color: var(--gold); font-weight: 700; white-space: nowrap; }
.kv dd { margin: 0; }
.kv .val { font-weight: 700; margin-right: 0.4rem; }
.kv .note { color: var(--ink-soft); font-size: 0.85rem; }

.mu-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0.7rem; }
.mu {
  border: 1px solid var(--line-soft); border-left: 4px solid var(--ink-soft);
  border-radius: 4px; padding: 0.6rem 0.75rem;
}
.mu.lu { border-left-color: var(--lu); }
.mu.quan { border-left-color: var(--quan); }
.mu.ke { border-left-color: var(--ke); }
.mu.ji { border-left-color: var(--ji); }
.mu-title { display: flex; align-items: center; gap: 0.45rem; margin-bottom: 0.3rem; }
.mu-title strong { font-size: 1rem; }
.mu p { font-size: 0.85rem; color: var(--ink-soft); margin: 0; }

.trine-list {
  display: flex; flex-direction: column; gap: 0.55rem;
  margin: 0.8rem 0 0; padding: 0; list-style: none;
}
.trine-list li { display: flex; gap: 0.6rem; align-items: baseline; font-size: 0.9rem; flex-wrap: wrap; }
.role {
  font-size: 0.72rem; color: var(--paper); background: var(--gold);
  border-radius: 3px; padding: 0.1rem 0.4rem; flex-shrink: 0;
}
.trine-list .pname { font-weight: 700; }
.trine-list .pstars { color: var(--ink-soft); }

.decadal-now { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.decadal-now .hl { color: var(--cinnabar); }

footer {
  max-width: 1080px; margin: 2.5rem auto 0;
  font-size: 0.86rem; line-height: 1.75; color: var(--ink-soft);
  border-top: 1px solid var(--line-soft); padding-top: 1rem;
}
footer strong { color: var(--ink); }

/* ── 窄螢幕 ─────────────────────────────────── */
@media (max-width: 720px) {
  body { padding: 1rem 0.9rem 3rem; }
  .toolbar { justify-content: center; gap: 0.5rem; }
  .switch button { padding: 0.3rem 0.65rem; font-size: 0.78rem; }
  .cards { grid-template-columns: 1fr; }
  .card.wide { grid-column: auto; }
  .form { padding: 1.2rem 1.1rem; }
  .result-bar .btn { flex: 1; }
}