/* ============================================================
   LỤA CLINIC — design tokens
   Ivory Silk / Ink Charcoal / Sage Mist / Dusty Rose / Soft Gold
   Display: Fraunces · Body: Be Vietnam Pro
   ============================================================ */

:root {
  --color-bg: #F7F3EE;
  --color-surface: #FFFFFF;
  --color-ink: #1D2220;
  --color-ink-soft: #4A524C;
  --color-ink-faint: #8B928C;
  --color-sage: #7C8F7B;
  --color-sage-deep: #56695A;
  --color-rose: #B97B84;
  --color-rose-deep: #9C5D67;
  --color-gold: #C7A76C;
  --color-line: rgba(29, 34, 32, 0.12);
  --color-line-soft: rgba(29, 34, 32, 0.07);

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Be Vietnam Pro", "Segoe UI", sans-serif;

  --container: 1180px;
  --radius-lg: 28px;
  --radius-md: 16px;
  --radius-sm: 10px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5.5rem;

  --shadow-soft: 0 20px 50px -25px rgba(29, 34, 32, 0.35);
  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

:focus-visible {
  outline: 2px solid var(--color-rose-deep);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

h1 { font-size: clamp(2.4rem, 4.4vw + 1rem, 4.2rem); font-weight: 500; }
h2 { font-size: clamp(1.9rem, 2.6vw + 1rem, 2.8rem); }
h3 { font-size: clamp(1.25rem, 1vw + 1rem, 1.55rem); }
h4 { font-size: 1.1rem; }

p { margin: 0 0 var(--space-sm); color: var(--color-ink-soft); }
.lede { font-size: 1.15rem; color: var(--color-ink-soft); max-width: 46ch; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-rose-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin-bottom: var(--space-sm);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.9em 1.7em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.35s var(--ease), color 0.35s var(--ease), border-color .35s var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--color-ink); color: var(--color-bg); }
.btn-primary:hover { background: var(--color-rose-deep); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--color-ink); border-color: var(--color-line); }
.btn-ghost:hover { border-color: var(--color-ink); transform: translateY(-2px); }
.btn-light { background: var(--color-bg); color: var(--color-ink); }
.btn-light:hover { background: var(--color-surface); transform: translateY(-2px); }
.btn-sm { padding: 0.6em 1.2em; font-size: 0.85rem; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 243, 238, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
}
.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  font-family: var(--font-display);
  line-height: 1.1;
}
.logo-mark { font-size: 1.2rem; font-weight: 600; white-space: nowrap; }
.logo-sub {
  font-family: var(--font-body);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  white-space: nowrap;
}
@media (max-width: 420px) {
  .logo-mark { font-size: 1rem; }
}
.main-nav { display: flex; align-items: center; gap: 2.1rem; }
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  position: relative;
  padding: 0.2rem 0;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--color-ink); }
.main-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--color-gold);
}
.header-actions { display: flex; align-items: center; gap: 1.2rem; }
.header-phone { font-size: 0.88rem; font-weight: 600; color: var(--color-ink); display: flex; align-items: center; gap: 0.4rem; }
.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; border-radius: 50%;
  align-items: center; justify-content: center;
}
.nav-toggle svg { width: 20px; height: 20px; }

@media (max-width: 880px) {
  .main-nav { position: fixed; inset: 68px 0 0 0; background: var(--color-bg); flex-direction: column; justify-content: flex-start; padding: 2.5rem 1.5rem; gap: 1.5rem; transform: translateX(100%); transition: transform 0.4s var(--ease); }
  .main-nav.open { transform: translateX(0); }
  .main-nav a { font-size: 1.2rem; }
  .header-phone { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- thread divider (signature) ---------- */
.thread {
  width: 100%;
  height: 46px;
  display: block;
  color: var(--color-gold);
}
.thread path { stroke: currentColor; stroke-width: 1.2; fill: none; opacity: 0.75; }

/* ---------- glow ---------- */
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}
.glow-rose { background: radial-gradient(circle, var(--color-rose) 0%, transparent 70%); }
.glow-sage { background: radial-gradient(circle, var(--color-sage) 0%, transparent 70%); }
.glow-gold { background: radial-gradient(circle, var(--color-gold) 0%, transparent 70%); }

/* ---------- hero ---------- */
.hero {
  padding: var(--space-xl) 0 var(--space-lg);
  position: relative;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-lg);
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero h1 { margin-bottom: var(--space-md); }
.hero-actions { display: flex; gap: 1rem; margin-top: var(--space-md); flex-wrap: wrap; }
.hero-visual {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, #EFE6DC 0%, #E4D9CE 45%, #D9C9BC 100%);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.hero-visual .glow { width: 60%; height: 60%; top: 10%; left: 20%; }
.hero-visual-mark {
  position: relative; z-index: 1;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
  text-align: center;
  padding: 0 2rem;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  width: 62%;
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.4);
}

@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; aspect-ratio: 16/10; }
}

.hero-inner.solo {
  grid-template-columns: 1fr;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.hero-inner.solo .lede { margin: 0 auto var(--space-sm); }
.hero-inner.solo .hero-actions { justify-content: center; }

/* ---------- trust strip ---------- */
.trust-strip {
  border-top: 1px solid var(--color-line-soft);
  border-bottom: 1px solid var(--color-line-soft);
  padding: var(--space-md) 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  text-align: center;
}
.trust-grid strong { display: block; font-family: var(--font-display); font-size: 1.8rem; color: var(--color-ink); }
.trust-grid span { font-size: 0.82rem; color: var(--color-ink-faint); }
@media (max-width: 700px) { .trust-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- sections ---------- */
.section { padding: var(--space-xl) 0; position: relative; }
.section-alt { background: var(--color-surface); }
.section-dark { background: var(--color-ink); color: var(--color-bg); }
.section-dark p { color: rgba(247,243,238,0.72); }
.section-dark h2 { color: var(--color-bg); }
.section-head { max-width: 640px; margin-bottom: var(--space-lg); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- cards grid ---------- */
.grid { display: grid; gap: 1.6rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--color-line-soft);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.card .icon {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--color-bg);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-sm);
  color: var(--color-sage-deep);
}
.card .icon svg { width: 22px; height: 22px; }
.card-price { font-family: var(--font-display); font-size: 1.2rem; color: var(--color-rose-deep); margin-top: 0.6rem; }
.card-link { display: inline-flex; align-items: center; gap: 0.4em; font-size: 0.86rem; font-weight: 600; margin-top: 0.8rem; }
.card-featured { border-color: var(--color-gold); background: linear-gradient(180deg, #FFFDFB 0%, #FBF3E9 100%); }
.tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: rgba(199,167,108,0.14);
  padding: 0.3em 0.7em;
  border-radius: 999px;
  margin-bottom: 0.6rem;
}

/* ---------- process (real sequence -> numbered ok) ---------- */
.process { position: relative; }
.process-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.4rem; counter-reset: step; }
.process-item { position: relative; padding-top: 2.6rem; }
.process-item::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-gold);
  display: block;
  margin-bottom: 0.5rem;
}
.process-item h4 { margin-bottom: 0.35rem; }
.process-item p { font-size: 0.92rem; }
@media (max-width: 980px) { .process-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .process-list { grid-template-columns: 1fr; } }

/* ---------- testimonials ---------- */
.quote-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border-left: 3px solid var(--color-rose);
}
.quote-card p { font-family: var(--font-display); font-size: 1.05rem; color: var(--color-ink); font-style: italic; }
.quote-meta { font-size: 0.82rem; color: var(--color-ink-faint); margin-top: 0.8rem; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-ink);
  color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  position: relative;
  overflow: hidden;
}
.cta-band h2 { color: var(--color-bg); margin-bottom: 0.4rem; }
.cta-band p { color: rgba(247,243,238,0.7); margin-bottom: 0; }
@media (max-width: 760px) { .cta-band { flex-direction: column; text-align: center; } }

/* ---------- team ---------- */
.team-card { text-align: center; }
.team-photo {
  aspect-ratio: 3/4;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, #E9DFD3, #D7C6B4);
  margin-bottom: var(--space-sm);
  position: relative;
  overflow: hidden;
}
.team-card h4 { margin-bottom: 0.1rem; }
.team-role { font-size: 0.85rem; color: var(--color-rose-deep); font-weight: 600; }
.team-cert { font-size: 0.82rem; color: var(--color-ink-faint); margin-top: 0.4rem; }

/* ---------- gallery ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.gallery-item {
  aspect-ratio: 1/1;
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, #E9DFD3, #D9C9BC);
  position: relative;
  overflow: hidden;
  display: flex; align-items: flex-end;
}
.gallery-item span {
  position: relative; z-index: 1;
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  background: rgba(255,255,255,0.65);
  padding: 0.5rem 0.8rem;
  width: 100%;
}
@media (max-width: 760px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .gallery-grid { grid-template-columns: 1fr; } }

.notice {
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.88rem;
  color: var(--color-ink-soft);
  background: rgba(124,143,123,0.06);
}

/* ---------- forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.4rem; color: var(--color-ink); }
input, select, textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.85em 1em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-ink);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--color-rose-deep); box-shadow: 0 0 0 3px rgba(185,123,132,0.15); }
textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 0.78rem; color: var(--color-ink-faint); margin-top: 0.6rem; }
.form-status { font-size: 0.88rem; margin-top: 0.8rem; display: none; }
.form-status.show { display: block; }
@media (max-width: 620px) { .form-grid { grid-template-columns: 1fr; } }

/* ---------- contact info list ---------- */
.info-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1.1rem; }
.info-list li { display: flex; gap: 0.9rem; align-items: flex-start; }
.info-list .icon { flex-shrink: 0; width: 38px; height: 38px; border-radius: 50%; background: var(--color-bg); display: flex; align-items: center; justify-content: center; color: var(--color-sage-deep); }
.info-list .icon svg { width: 18px; height: 18px; }
.map-embed {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line-soft);
  aspect-ratio: 4/3;
}
.map-embed iframe { width: 100%; height: 100%; border: 0; }

/* ---------- footer ---------- */
.site-footer { background: var(--color-ink); color: rgba(247,243,238,0.85); padding: var(--space-lg) 0 var(--space-md); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-lg); }
.footer-grid h4 { color: var(--color-bg); font-family: var(--font-body); font-size: 0.85rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 1rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.65rem; font-size: 0.9rem; }
.footer-grid ul a { color: rgba(247,243,238,0.72); }
.footer-grid ul a:hover { color: var(--color-gold); }
.footer-logo { font-family: var(--font-display); font-size: 1.4rem; color: var(--color-bg); margin-bottom: 0.6rem; }
.footer-desc { font-size: 0.88rem; color: rgba(247,243,238,0.6); max-width: 32ch; }
.footer-bottom { border-top: 1px solid rgba(247,243,238,0.14); padding-top: var(--space-md); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem; font-size: 0.8rem; color: rgba(247,243,238,0.5); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.license-strip { font-size: 0.78rem; color: rgba(247,243,238,0.5); margin-top: 0.6rem; }