/* ==========================================================================
   83GARDEN 品牌設計系統（HTML 純靜態版）
   核心概念：冰浴（冷）與桑拿（熱）的對比療程 → 溫度漸層作為品牌簽名視覺
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500&family=Noto+Serif+Thai:wght@400;600&family=Noto+Sans+Thai:wght@400;500;600&display=swap');

:root {
  /* 顏色 token */
  --color-deep-garden: #16261f;
  --color-alabaster: #f3efe6;
  --color-glacier: #9fd8e0;
  --color-ember: #c1622c;
  --color-moss: #4f7a5b;
  --color-ink: #16261f;

  /* 字體 token（含泰文備用字型，切換語言時自動套用） */
  --font-display: 'Fraunces', 'Noto Serif Thai', serif;
  --font-body: 'Inter', 'Noto Sans Thai', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Noto Sans Thai', monospace;

  /* 簽名視覺：溫度漸層 */
  --gradient-temperature: linear-gradient(
    90deg,
    var(--color-glacier) 0%,
    var(--color-moss) 50%,
    var(--color-ember) 100%
  );
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: var(--color-alabaster);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.6;
}

.font-display {
  font-family: var(--font-display);
}

.font-mono {
  font-family: var(--font-mono);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(243, 239, 230, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(22, 38, 31, 0.1);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  font-family: var(--font-display);
  font-size: 20px;
  display: flex;
  align-items: center;
}

.logo img {
  height: 44px;
  width: 44px;
  border-radius: 50%;
  display: block;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-links a {
  font-size: 14px;
  color: rgba(22, 38, 31, 0.8);
}

.nav-links a:hover {
  color: var(--color-moss);
}

.nav-cta {
  background: var(--color-deep-garden);
  color: var(--color-alabaster) !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
}

.nav-cta:hover {
  background: var(--color-moss);
}

/* ---------- 語言切換 ---------- */
.lang-switch {
  display: flex;
  gap: 4px;
  background: rgba(22, 38, 31, 0.08);
  padding: 4px;
  border-radius: 999px;
}

.lang-switch button {
  border: none;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  color: rgba(22, 38, 31, 0.6);
}

.lang-switch button:hover:not(.active) {
  color: var(--color-ink);
}

.lang-switch button.active {
  background: var(--color-deep-garden);
  color: var(--color-alabaster);
}

/* ---------- 溫度漸層條（簽名元件） ---------- */
.temperature-bar {
  height: 2px;
  width: 100%;
  background: var(--gradient-temperature);
  opacity: 0.6;
  border: none;
}

.temperature-bar--hero {
  height: 8px;
  border-radius: 999px;
  opacity: 1;
  display: flex;
  align-items: center;
}

.temperature-chip {
  display: inline-block;
  width: 32px;
  height: 8px;
  border-radius: 999px;
  background: var(--gradient-temperature);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--color-deep-garden);
  padding: 96px 24px;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-image: radial-gradient(circle at 20% 20%, var(--color-glacier) 0%, transparent 35%),
    radial-gradient(circle at 80% 70%, var(--color-ember) 0%, transparent 35%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--color-alabaster);
  font-size: 44px;
  line-height: 1.2;
  margin: 0;
}

.hero p {
  color: rgba(243, 239, 230, 0.8);
  font-size: 18px;
  margin-top: 20px;
}

.hero-temp-row {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 400px;
  margin: 40px auto 0;
}

.hero-temp-row span {
  font-family: var(--font-mono);
  font-size: 13px;
}

.hero-temp-row .cold { color: var(--color-glacier); }
.hero-temp-row .hot { color: var(--color-ember); }

.btn-primary {
  display: inline-block;
  margin-top: 40px;
  background: var(--color-alabaster);
  color: var(--color-deep-garden) !important;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 500;
}

.btn-primary:hover {
  background: var(--color-glacier);
}

/* ---------- Promotion Banner ---------- */
.promo-banner {
  background: var(--color-ember);
  color: var(--color-alabaster);
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  padding: 12px 24px;
}

/* ---------- Section 共用 ---------- */
.section {
  padding: 80px 24px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
}

.section h2 {
  font-family: var(--font-display);
  font-size: 32px;
  margin: 0;
}

/* ---------- 服務卡片 ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

@media (max-width: 900px) {
  .card-grid { grid-template-columns: 1fr; }
}

.service-chip {
  border: none;
  border-top: 4px solid var(--color-moss);
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.service-chip.accent-glacier { border-top-color: var(--color-glacier); }
.service-chip.accent-ember { border-top-color: var(--color-ember); }
.service-chip.accent-moss { border-top-color: var(--color-moss); }

.service-chip .tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(22,38,31,0.5);
}

.service-chip h3 {
  font-family: var(--font-display);
  font-size: 24px;
  margin: 16px 0 8px;
}

.service-chip p {
  font-size: 14px;
  color: rgba(22,38,31,0.7);
  margin: 0;
}

.service-chip .price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
}

.service-chip .price {
  font-family: var(--font-mono);
  font-size: 18px;
}

.service-chip .book-link {
  background: var(--color-deep-garden);
  color: var(--color-alabaster) !important;
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
}

.service-chip .book-link:hover {
  background: var(--color-moss);
}

/* ---------- 地圖頁 placeholder ---------- */
.map-placeholder {
  height: 384px;
  border: 2px dashed rgba(22,38,31,0.2);
  border-radius: 16px;
  background: var(--color-alabaster);
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-placeholder span {
  font-family: var(--font-mono);
  font-size: 14px;
  color: rgba(22,38,31,0.5);
}

.map-embed {
  border-radius: 16px;
  overflow: hidden;
}

.map-embed iframe {
  width: 100%;
  height: 384px;
  border: 0;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
}

@media (max-width: 700px) {
  .info-grid { grid-template-columns: 1fr; }
}

.info-grid h3 {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0 0 8px;
}

/* ---------- 關於我們頁 ---------- */
.about-hero {
  background: var(--color-deep-garden);
  padding: 80px 24px;
  text-align: center;
}

.about-hero h1 {
  color: var(--color-alabaster);
  font-family: var(--font-display);
  font-size: 40px;
  margin: 0;
}

.about-hero p {
  color: rgba(243,239,230,0.8);
  max-width: 560px;
  margin: 16px auto 0;
}

.about-story {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px;
}

.about-story p {
  font-size: 18px;
  white-space: pre-line;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

@media (max-width: 700px) {
  .stat-grid { grid-template-columns: 1fr; }
}

.stat-grid .value {
  font-family: var(--font-mono);
  font-size: 32px;
}

.stat-grid .value.glacier { color: var(--color-glacier); }
.stat-grid .value.ember { color: var(--color-ember); }
.stat-grid .value.moss { color: var(--color-moss); }

.stat-grid .label {
  font-size: 14px;
  color: rgba(22,38,31,0.6);
  margin-top: 4px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-deep-garden);
  color: rgba(243,239,230,0.8);
  padding: 48px 24px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 14px;
}

.footer-copyright {
  font-size: 12px;
  color: rgba(243,239,230,0.5);
  margin-top: 32px;
}