/* ============================================================
   Puttiphat Clinic — Luxury Design System
   Version 1.0 — Used in all new pages (membership, payment, legal)
   ============================================================ */

/* ---- Reset / Base ---- */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'IBM Plex Sans Thai', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2C2C2C;
  background: #FAF6EF;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ---- Color Tokens ---- */
:root {
  --gold: #B8956A;
  --gold-dark: #9A7B53;
  --onyx: #1A1A1A;
  --charcoal: #2C2C2C;
  --pearl: #FAF6EF;
  --cream: #F2EBDD;
  --gray-warm: #A8A29A;
  --rose: #D4A5A5;
  --border: #E8E2D8;
  --success: #5C8A4C;
  --alert: #A04444;

  --font-display: 'Cormorant Garamond', 'Noto Serif Thai', Georgia, serif;
  --font-body: 'Inter', 'IBM Plex Sans Thai', system-ui, sans-serif;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  --container-max: 1200px;
  --container-narrow: 760px;
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--onyx);
  font-weight: 500;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(36px, 5vw, 64px); line-height: 1.1; font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 4vw, 48px); line-height: 1.2; }
h3 { font-size: clamp(22px, 2.5vw, 32px); line-height: 1.3; }
h4 { font-size: clamp(18px, 1.5vw, 20px); font-weight: 600; line-height: 1.4; font-family: var(--font-body); }

p { margin-bottom: var(--space-md); }
.text-large { font-size: 18px; }
.text-small { font-size: 14px; }
.text-caption { font-size: 13px; letter-spacing: 0.02em; color: var(--gray-warm); }
.text-gold { color: var(--gold); }
.text-center { text-align: center; }
.text-muted { color: var(--gray-warm); }

/* ---- Layout ---- */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-lg); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-lg); }
section { padding: var(--space-3xl) 0; }
@media (max-width: 768px) { section { padding: var(--space-2xl) 0; } }

.section-cream { background: var(--cream); }
.section-onyx { background: var(--onyx); color: var(--pearl); }
.section-onyx h1, .section-onyx h2, .section-onyx h3, .section-onyx h4 { color: var(--pearl); }

.divider { width: 60px; height: 1px; background: var(--gold); margin: var(--space-lg) auto; }

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}
.btn-primary {
  background: var(--onyx);
  color: var(--pearl);
  border-color: var(--onyx);
}
.btn-primary:hover { background: var(--gold); border-color: var(--gold); }
.btn-secondary {
  background: transparent;
  color: var(--onyx);
  border-color: var(--onyx);
}
.btn-secondary:hover { background: var(--onyx); color: var(--pearl); }
.btn-gold {
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
}
.btn-gold:hover { background: var(--gold-dark); border-color: var(--gold-dark); }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 239, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}
.brand-wordmark {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--onyx);
}
.brand-wordmark .gold-dot { color: var(--gold); }
.nav-list { list-style: none; display: flex; gap: var(--space-xl); align-items: center; }
.nav-list a {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  color: var(--charcoal);
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.nav-list a:hover { color: var(--gold); }
.nav-list a.active { color: var(--gold); }
.lang-toggle {
  background: none;
  border: 1px solid var(--border);
  padding: 6px 12px;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.05em;
  cursor: pointer;
  color: var(--charcoal);
  transition: all 0.2s;
}
.lang-toggle:hover { border-color: var(--onyx); }
@media (max-width: 768px) {
  .nav-list { display: none; }
}

/* ---- Hero ---- */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
}
.hero .eyebrow {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-md);
}
.hero h1 { margin-bottom: var(--space-md); }
.hero .lede {
  font-size: 18px;
  color: var(--charcoal);
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

/* ---- Program Cards (Membership) ---- */
.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}
.program-card {
  background: #fff;
  border: 1px solid var(--border);
  padding: var(--space-2xl) var(--space-xl);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.program-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px -16px rgba(26,26,26,0.12);
}
.program-card .program-tag {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-md);
  display: block;
}
.program-card h3 {
  margin-bottom: var(--space-md);
  min-height: 2.6em;
}
.program-card .program-desc {
  color: var(--charcoal);
  margin-bottom: var(--space-lg);
  font-size: 15px;
}
.program-card .program-includes {
  list-style: none;
  margin-bottom: var(--space-xl);
}
.program-card .program-includes li {
  padding: 8px 0 8px 24px;
  font-size: 14px;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.program-card .program-includes li:last-child { border-bottom: none; }
.program-card .program-includes li::before {
  content: "✦";
  color: var(--gold);
  position: absolute;
  left: 0;
  top: 8px;
}
.program-card .price {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--onyx);
  font-weight: 600;
  margin-bottom: 4px;
  display: block;
}
.program-card .price-unit {
  font-size: 13px;
  color: var(--gray-warm);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-lg);
}

/* ---- Forms ---- */
.form-group { margin-bottom: var(--space-lg); }
.form-group label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: 6px;
  font-weight: 500;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: #fff;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--charcoal);
  border-radius: 0;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--onyx);
}
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: var(--space-md);
  font-size: 14px;
  line-height: 1.6;
}
.checkbox-group input[type="checkbox"] {
  margin-top: 4px;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--gold);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--onyx);
  color: var(--pearl);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
}
.site-footer a { color: var(--pearl); transition: color 0.2s; }
.site-footer a:hover { color: var(--gold); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}
.footer-col h5 {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-md);
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; font-size: 14px; }
.footer-bottom {
  border-top: 1px solid rgba(250,246,239,0.1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--gray-warm);
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ---- Floating CTAs ---- */
.fab-stack {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: transform 0.2s, box-shadow 0.2s;
  color: #fff;
  font-size: 24px;
}
.fab:hover { transform: scale(1.08); box-shadow: 0 8px 24px rgba(0,0,0,0.25); }
.fab-line { background: #06C755; }
.fab-phone { background: var(--onyx); }
.fab-messenger { background: #0084FF; }

/* ---- Utility ---- */
.text-en { display: none; }
body.lang-en .text-th { display: none; }
body.lang-en .text-en { display: block; }
body.lang-en h1.text-en, body.lang-en h2.text-en,
body.lang-en h3.text-en, body.lang-en span.text-en,
body.lang-en a.text-en, body.lang-en button.text-en,
body.lang-en p.text-en, body.lang-en label.text-en,
body.lang-en li.text-en { display: revert; }

.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }