/* ========================================================================
   Reset + base typography
   ======================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--sand-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video { max-width: 100%; height: auto; display: block; }

a {
  color: var(--forest-700);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}
a:hover { color: var(--gold-700); }

button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.012em;
  color: var(--ink-strong);
  margin: 0 0 0.4em;
}

h1 { font-size: clamp(40px, 6.4vw, 76px); font-weight: 400; letter-spacing: -0.02em; line-height: 1.05; }
h2 { font-size: clamp(30px, 4.2vw, 48px); font-weight: 400; }
h3 { font-size: clamp(22px, 2.6vw, 28px); }
h4 { font-size: clamp(18px, 1.8vw, 21px); }

p { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.container--narrow { max-width: var(--container-narrow); }

@media (max-width: 600px) {
  .container { padding: 0 18px; }
}

/* ── Utility ── */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-700);
}

.lede {
  font-size: clamp(17px, 1.8vw, 21px);
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 56ch;
}

.zh { font-family: "Noto Serif SC", "Cormorant Garamond", serif; }
.zh-sans { font-family: "Noto Sans SC", "Inter", sans-serif; }

/* ── Sections ── */
.section {
  padding: clamp(72px, 11vw, 130px) 0;
}
.section--tight { padding: clamp(56px, 8vw, 96px) 0; }
.section--dark { background: var(--forest-700); color: var(--sand-100); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--sand-50); }
.section--sand { background: var(--sand-200); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: var(--forest-700);
  color: var(--sand-50);
  cursor: pointer;
  transition: all 0.22s var(--ease);
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { background: var(--forest-800); color: var(--sand-50); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--forest-700);
  border-color: var(--forest-700);
}
.btn--ghost:hover { background: var(--forest-700); color: var(--sand-50); }

.btn--gold { background: var(--gold-600); color: var(--ink-strong); }
.btn--gold:hover { background: var(--gold-700); color: var(--sand-50); }

.btn--whatsapp {
  background: #25D366;
  color: #fff;
}
.btn--whatsapp:hover { background: #1eb558; color: #fff; }

.btn--lg { padding: 17px 32px; font-size: 15.5px; }
.btn--sm { padding: 9px 18px; font-size: 13px; }

/* ── Forms ── */
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--forest-700);
  box-shadow: 0 0 0 3px rgba(45, 74, 62, 0.12);
}
label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-muted);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}