/* ============================================================
 * 雫旅 Drop Inn Explore · 共用樣式
 * 依 docs/_design-system.md (2026-05-29)
 * ============================================================ */

:root {
  --bg: #f5f1ec;
  --card: #f8f5ef;
  --ink: #1a1210;
  --muted: #6b5f56;
  --border: rgba(181, 171, 160, 0.3);
  --border-strong: rgba(181, 171, 160, 0.45);
  --pending: #e8e1d7;
  --has-room: rgba(184, 121, 90, 0.12);
  --accent: #6a5a45;
  --highlight: #a55a4f;
  --success: #5a7a5a;
  --info: #2a4258;

  /* button primary */
  --btn-primary-bg: #a89684;
  --btn-heavy-bg: #8a7868;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  background-color: var(--bg);
  color: var(--ink);
  font-family: 'Noto Serif TC', serif;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- 數字統一規則 ⭐ ---------- */
.garamond, .num {
  font-family: 'Cormorant Garamond', serif;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* ---------- Layout 容器 ---------- */
.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.section { margin-bottom: 36px; }

/* ---------- 共用 Header ---------- */
.app-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245, 241, 236, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  margin-bottom: 32px;
}
.app-header .inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.app-brand {
  display: flex; align-items: baseline; gap: 12px;
}
.app-brand .brand-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.18em;
}
.app-brand .brand-sub {
  font-family: 'Cormorant Garamond', serif;
  font-size: 10px;
  letter-spacing: 0.32em;
  color: var(--muted);
  text-transform: uppercase;
}
.app-nav {
  display: flex; gap: 16px; align-items: center;
  flex-wrap: wrap; justify-content: flex-end;
  font-size: 12px; letter-spacing: 0.16em;
  color: var(--muted);
}
.app-nav a { transition: color 0.18s, background 0.18s; padding: 5px 4px; }
.app-nav a:hover { color: var(--accent); }
/* 當前頁：膠囊反白，一眼看出在哪頁 */
.app-nav a.active { color: #fff; background: var(--accent); border-radius: 99px; padding: 5px 14px; }
.app-nav a.active:hover { color: #fff; }
/* 離開行程區、回民宿主站：弱化＋分隔，不與分頁混淆 */
.app-nav a.nav-exit { color: var(--muted); font-size: 11px; margin-left: 8px; padding-left: 14px; border-left: 1px solid var(--border); }
.app-nav a.nav-exit:hover { color: var(--accent); }

.bag-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  border-radius: 99px;
  background: var(--card);
  border: 1px solid var(--border-strong);
  font-size: 11px; letter-spacing: 0.15em;
  color: var(--ink);
}
.bag-pill .bag-count {
  font-family: 'Cormorant Garamond', serif;
  font-size: 14px;
  color: var(--accent);
  min-width: 14px;
  text-align: center;
}

/* ---------- 標題 ---------- */
.page-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 36px;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-align: center;
  margin-bottom: 4px;
}
.page-sub {
  font-family: 'Cormorant Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--muted);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 28px;
}

.section-heading {
  display: flex; flex-direction: column;
  margin-bottom: 18px;
}
.section-heading h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: #4a3f35;
}
.section-heading .en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: #8a7a6a;
  text-transform: uppercase;
  margin-top: 2px;
}

/* ---------- 按鈕 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; cursor: pointer;
  font-family: 'Noto Serif TC', serif;
  letter-spacing: 0.15em;
  transition: opacity 0.18s, transform 0.18s, background 0.18s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-neutral {
  background: #f8f5ef;
  border: 1px solid rgba(181,171,160,0.45);
  color: #1a1210;
  border-radius: 14px;
  padding: 12px 22px;
  font-size: 13px;
}
.btn-neutral:hover { background: #f0ebe2; }

.btn-primary {
  background: var(--btn-primary-bg);
  color: #f8f5ef;
  border-radius: 10px;
  padding: 12px 28px;
  font-size: 13px;
}
.btn-primary:hover { background: #99876f; }

.btn-heavy {
  background: var(--btn-heavy-bg);
  color: #f8f5ef;
  border-radius: 14px;
  padding: 10px 18px;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.btn-sm { padding: 8px 14px; font-size: 11px; }
.btn-block { width: 100%; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 4px 18px rgba(26, 18, 16, 0.04);
}

/* ---------- Chip / Badge ---------- */
.chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  letter-spacing: 0.05em;
  background: rgba(26,18,16,0.06);
  color: var(--muted);
}
.chip-accent {
  background: rgba(106, 90, 69, 0.12);
  color: var(--accent);
}
.chip-highlight {
  background: rgba(165, 90, 79, 0.13);
  color: var(--highlight);
}
.chip-success {
  background: rgba(90, 122, 90, 0.13);
  color: var(--success);
}
.chip-info {
  background: rgba(42, 66, 88, 0.10);
  color: var(--info);
}

/* ---------- 商品卡 (商品列表) ---------- */
.tour-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}
.tour-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: 0 4px 18px rgba(26, 18, 16, 0.04);
  transition: transform 0.18s, box-shadow 0.18s;
}
.tour-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(26, 18, 16, 0.08);
}

.tour-thumb {
  height: 160px;
  background: linear-gradient(145deg, #c2d4e6 0%, #6e8eb2 40%, #2e567e 100%);
  position: relative;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.88);
}
/* 4 category 漸層 (沿用 drift 邏輯) */
.tour-thumb[data-cat="東海"]   { background: linear-gradient(145deg, #b0c8cc 0%, #5e8c92 40%, #244e58 100%); }
.tour-thumb[data-cat="南海"]   { background: linear-gradient(145deg, #c2d4e6 0%, #6e8eb2 40%, #2e567e 100%); }
.tour-thumb[data-cat="北海"]   { background: linear-gradient(145deg, #b6c2cf 0%, #6582a0 40%, #2f4a68 100%); }
.tour-thumb[data-cat="海洋牧場"]{ background: linear-gradient(145deg, #c2d4d2 0%, #7a9a8e 40%, #3e6058 100%); }
.tour-thumb[data-cat="花火船"] { background: linear-gradient(145deg, #d8c2b6 0%, #a07868 40%, #5a3a2c 100%); }
.tour-thumb[data-cat="夜釣小管"]{ background: linear-gradient(145deg, #b4a8b8 0%, #6e5a78 40%, #3a2848 100%); }
.tour-thumb[data-cat="BBQ"]   { background: linear-gradient(145deg, #d6c0a0 0%, #a08660 40%, #5a4220 100%); }
.tour-thumb[data-cat="水上活動"]{ background: linear-gradient(145deg, #c0d4d0 0%, #708a86 40%, #2a4844 100%); }
.tour-thumb[data-cat="潮間帶"] { background: linear-gradient(145deg, #c8c0a8 0%, #908060 40%, #4e3e22 100%); }
.tour-thumb[data-cat="特殊行程"]{ background: linear-gradient(145deg, #d4c0c8 0%, #a07888 40%, #5a324a 100%); }
.tour-thumb[data-cat="汽車"]   { background: linear-gradient(145deg, #c8c8c8 0%, #888888 40%, #404040 100%); }
.tour-thumb[data-cat="機車"]   { background: linear-gradient(145deg, #c8c8c8 0%, #888888 40%, #404040 100%); }
.tour-thumb[data-cat="離島花火"]{ background: linear-gradient(145deg, #d8c0a0 0%, #b09060 40%, #6a4020 100%); }
.tour-thumb[data-cat="門票"]   { background: linear-gradient(145deg, #d0c8c0 0%, #908878 40%, #50483c 100%); }

.tour-thumb .cat-label {
  font-family: 'Cormorant Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.88);
}

.tour-thumb .hot-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--highlight);
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 10px;
  letter-spacing: 0.18em;
}

.tour-body {
  padding: 20px 22px 22px;
  display: flex; flex-direction: column; gap: 10px;
  flex: 1;
}
.tour-body h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.2;
  color: var(--ink);
}
.tour-body .vendor-sub {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.tour-body .short-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
  flex: 1;
}
.tour-body .meta-row {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.tour-body .price-row {
  display: flex; align-items: baseline; gap: 10px;
  margin-top: 6px;
}
.tour-body .price-inn {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  font-weight: 400;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.tour-body .price-strike {
  font-family: 'Cormorant Garamond', serif;
  font-size: 13px;
  color: var(--muted);
  text-decoration: line-through;
  font-variant-numeric: tabular-nums;
}
.tour-body .price-unit {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--muted);
}
.tour-body .actions {
  display: flex; gap: 8px;
  margin-top: 6px;
}
.tour-body .actions .btn { flex: 1; }

/* ---------- 表格 ---------- */
table.t {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.t th, table.t td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  word-break: break-word;
  overflow-wrap: anywhere;
}
table.t th {
  font-family: 'Cormorant Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 400;
  background: rgba(26,18,16,0.025);
}
table.t td.num, table.t th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- 表單 ---------- */
.form-row {
  display: flex; flex-direction: column; gap: 6px;
  margin-bottom: 18px;
}
.form-row > label {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  font-family: 'Cormorant Garamond', serif;
}
input[type="text"], input[type="tel"], input[type="email"], input[type="date"], input[type="time"],
input[type="number"], select, textarea {
  font-family: 'Noto Serif TC', serif;
  font-size: 14px;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
  transition: border-color 0.18s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.form-inline {
  display: flex; gap: 10px; align-items: end; flex-wrap: wrap;
}

/* ---------- Tab (行程手冊) ---------- */
.trip-tabs {
  display: flex;
  background: var(--card);
  border-top: 1px solid var(--border);
  position: sticky;
  bottom: 0;
  z-index: 50;
}
.trip-tabs button {
  flex: 1;
  background: none; border: none;
  padding: 14px 8px 12px;
  font-family: 'Noto Serif TC', serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  border-top: 2px solid transparent;
  transition: all 0.18s;
}
.trip-tabs button.active {
  color: var(--accent);
  border-top-color: var(--accent);
  background: rgba(106,90,69,0.06);
}

/* ---------- 提醒框 ---------- */
.alert {
  display: flex; gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 12px;
}
.alert-info {
  background: rgba(42, 66, 88, 0.08);
  color: var(--info);
  border-left: 3px solid var(--info);
}
.alert-warn {
  background: rgba(165, 90, 79, 0.10);
  color: var(--highlight);
  border-left: 3px solid var(--highlight);
}
.alert-success {
  background: rgba(90, 122, 90, 0.10);
  color: var(--success);
  border-left: 3px solid var(--success);
}

/* ---------- Step indicator ---------- */
.steps {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 24px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
}
.steps .step.active { color: var(--accent); font-weight: 500; }
.steps .step-dot {
  width: 16px; height: 1px;
  background: var(--border-strong);
}

/* ---------- 響應式 ⭐ ---------- */
@media (max-width: 640px) {
  .page { padding: 0 16px 80px; }
  .card { padding: 18px 16px; }
  .tour-grid { grid-template-columns: 1fr; gap: 16px; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .page-title { font-size: 28px; }
  .app-header .inner { padding: 0 16px; }
  .app-nav { gap: 12px; font-size: 11px; }
  table, th, td { word-break: break-word; overflow-wrap: anywhere; }
}
@media (max-width: 380px) {
  .card { padding: 14px 12px; }
}

/* ---------- 額外 utility ---------- */
.mt-6 { margin-top: 24px; }
.mt-3 { margin-top: 12px; }
.mb-5 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 12px; }
.text-muted { color: var(--muted); }
.text-accent { color: var(--accent); }
.text-highlight { color: var(--highlight); }
.text-success { color: var(--success); }
.flex { display: flex; }
.flex-1 { flex: 1; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.hidden { display: none !important; }