/* Vải Diệp Minh — shared styles
   Palette: cream / wine red / nude gold
*/
:root {
  --cream: #fbf5ec;
  --cream-2: #f3e9d6;
  --cream-3: #ebe0c8;
  --paper: #fffdf8;
  --wine: #8b1a2b;
  --wine-dark: #6b1320;
  --wine-soft: #a93547;
  --gold: #c9a57b;
  --gold-soft: #d9c19a;
  --ink: #2b1a16;
  --ink-2: #5a4339;
  --ink-3: #8b766b;
  --line: #e8dcc4;
  --shadow-sm: 0 2px 8px rgba(74, 38, 28, 0.06);
  --shadow-md: 0 8px 24px rgba(74, 38, 28, 0.08);
  --shadow-lg: 0 16px 40px rgba(74, 38, 28, 0.12);
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 28px;
  --font-serif: "Cormorant Garamond", "Times New Roman", serif;
  --font-body: "Be Vietnam Pro", -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { display: block; max-width: 100%; }

.serif { font-family: var(--font-serif); font-weight: 500; letter-spacing: 0.01em; }
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--wine);
  font-weight: 600;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn-primary {
  background: var(--wine);
  color: #fff;
  box-shadow: 0 6px 18px rgba(139,26,43,0.25);
}
.btn-primary:active { transform: translateY(1px); background: var(--wine-dark); }
.btn-ghost {
  background: transparent;
  color: var(--wine);
  border: 1px solid var(--wine);
}
.btn-gold {
  background: var(--gold);
  color: #fff;
}
.btn-zalo {
  background: #fff;
  color: #2b6cd9;
  border: 1px solid #d6e4ff;
  box-shadow: var(--shadow-sm);
}

/* ===== Util ===== */
.container { padding: 0 18px; }
.section { padding: 28px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; padding: 0 18px 14px; }
.section-head h2 { margin: 0; font-family: var(--font-serif); font-size: 24px; font-weight: 600; letter-spacing: 0.02em; color: var(--wine); }
.section-head a { font-size: 13px; color: var(--ink-2); display: inline-flex; align-items: center; gap: 4px; }
.section-head a::after { content: "›"; font-size: 18px; line-height: 1; }