/* =========================================
   NHÀ YẾN — Wedding Stationery
   Luxury · Romantic · Refined
   ========================================= */

:root {
  /* Brand palette */
  --c-wine: #6B1424;        /* primary - đỏ rượu vang đậm */
  --c-wine-soft: #8B2840;
  --c-gold: #C9A96E;        /* champagne gold */
  --c-gold-soft: #D9BB85;
  --c-gold-deep: #A8884A;
  --c-cream: #FAF6EE;       /* nền chính - kem ngà ấm */
  --c-cream-warm: #F5EDDF;
  --c-blush: #F0DFD3;       /* pastel hồng nâu */
  --c-charcoal: #2A2520;    /* nâu đen */
  --c-text: #3A3530;
  --c-muted: #8B7E70;
  --c-line: #E5DACA;
  --c-forest: #2D3A30;      /* xanh footer giống thongtinthiepcuoi */
  --c-forest-light: #3D4A40;

  /* Typography */
  --f-serif: 'Cormorant Garamond', 'Times New Roman', serif;
  --f-sans: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
  --f-script: 'Great Vibes', cursive;

  /* Layout */
  --header-h: 80px;
  --container: 1240px;
  --radius: 4px;
  --radius-lg: 12px;
  --t-fast: 0.25s ease;
  --t-base: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

/* RESET */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--f-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-cream);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* CONTAINER */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* TYPOGRAPHY */
h1, h2, h3, h4 {
  font-family: var(--f-serif);
  font-weight: 400;
  line-height: 1.15;
  color: var(--c-charcoal);
  letter-spacing: -0.01em;
}

h1 em, h2 em, h3 em {
  font-style: italic;
  color: var(--c-wine);
  font-weight: 400;
}

.center { text-align: center; }
.mt-2 { margin-top: 1.5rem; }
.mt-3 { margin-top: 2.5rem; }

/* SECTION HEADERS */
.section-eyebrow {
  font-family: var(--f-serif);
  font-style: italic;
  color: var(--c-gold-deep);
  font-size: 14px;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 400;
}

.section-title {
  font-size: clamp(32px, 4vw, 48px);
  margin-bottom: 16px;
}

.section-desc {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--c-muted);
  max-width: 560px;
  margin: 0 auto;
}

.section-head {
  margin-bottom: 64px;
}

.section-head.center {
  text-align: center;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 100px;
  transition: all var(--t-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--c-gold);
  color: var(--c-charcoal);
  border-color: var(--c-gold);
}
.btn-primary:hover {
  background: var(--c-gold-deep);
  border-color: var(--c-gold-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(168, 136, 74, 0.25);
}

.btn-outline {
  background: transparent;
  border-color: var(--c-gold);
  color: var(--c-wine);
}
.btn-outline:hover {
  background: var(--c-gold);
  color: var(--c-charcoal);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.8);
  color: #fff;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.95);
  color: var(--c-charcoal);
}

.btn-lg {
  padding: 18px 44px;
  font-size: 14px;
}

/* ============== HEADER ============== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 246, 238, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--t-base);
}

.site-header.scrolled {
  background: rgba(250, 246, 238, 0.96);
  border-bottom-color: var(--c-line);
  box-shadow: 0 1px 20px rgba(42, 37, 32, 0.06);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-header.scrolled .header-inner {
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo img {
  height: 48px;
  width: auto;
  transition: var(--t-fast);
}

.site-header.scrolled .logo img {
  height: 40px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-name {
  font-family: var(--f-serif);
  font-size: 22px;
  color: var(--c-wine);
  font-style: italic;
  letter-spacing: 0.5px;
}

.logo-tag {
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--c-gold-deep);
  text-transform: uppercase;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  gap: 36px;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--c-charcoal);
  letter-spacing: 0.5px;
  position: relative;
  padding: 6px 0;
  transition: color var(--t-fast);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--c-gold);
  transition: all var(--t-fast);
  transform: translateX(-50%);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--c-wine);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.btn-zalo-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--c-gold);
  color: var(--c-charcoal);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: all var(--t-fast);
  flex-shrink: 0;
}

.btn-zalo-header:hover {
  background: var(--c-gold-deep);
  transform: translateY(-1px);
}

.btn-zalo-header svg { flex-shrink: 0; }

.mobile-toggle {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.mobile-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--c-charcoal);
  transition: all var(--t-fast);
  margin-left: auto;
}

.mobile-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ============== HERO ============== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--header-h) 32px 32px;
  overflow: hidden;
  text-align: center;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: heroZoom 20s ease-out forwards;
}

@keyframes heroZoom {
  from { transform: scale(1.1); }
  to { transform: scale(1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, rgba(42, 37, 32, 0.35) 0%, rgba(42, 37, 32, 0.7) 100%),
    linear-gradient(180deg, rgba(42, 37, 32, 0.55) 0%, rgba(42, 37, 32, 0.5) 50%, rgba(42, 37, 32, 0.75) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeUp 1.2s ease-out 0.3s both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  font-family: var(--f-serif);
  font-style: italic;
  color: var(--c-gold-soft);
  font-size: 14px;
  letter-spacing: 6px;
  text-transform: uppercase;
  margin-bottom: 24px;
  animation: fadeUp 1s 0.1s both;
}

.hero-title {
  font-family: var(--f-serif);
  font-weight: 300;
  font-size: clamp(36px, 6vw, 76px);
  line-height: 1.1;
  margin-bottom: 32px;
  color: #fff;
  letter-spacing: -0.02em;
}

.hero-title .line-1 {
  display: block;
}
.hero-title .line-2 {
  display: block;
  margin-top: 0.15em;
}
.hero-title em {
  font-style: italic;
  color: var(--c-gold-soft);
  font-family: var(--f-script);
  font-weight: 400;
  font-size: 1.05em;
  display: inline-block;
  transform: translateY(0.05em);
  margin-right: 0.15em;
}

.hero-sub {
  font-family: var(--f-serif);
  font-size: 18px;
  font-style: italic;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 48px;
  letter-spacing: 0.5px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-scroll span {
  display: block;
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, transparent, var(--c-gold-soft));
  animation: scrollHint 2s ease-in-out infinite;
}

@keyframes scrollHint {
  0%, 100% { transform: scaleY(0.5); transform-origin: top; opacity: 0.5; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
}

/* ============== ABOUT ============== */
.about {
  padding: 120px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.about-image:hover img {
  transform: scale(1.04);
}

.about-image-frame {
  position: absolute;
  top: 20px;
  left: 20px;
  right: -20px;
  bottom: -20px;
  border: 1px solid var(--c-gold);
  z-index: -1;
  pointer-events: none;
}

.about-content .section-eyebrow {
  margin-bottom: 12px;
}

.about-content .lead {
  font-family: var(--f-serif);
  font-size: 22px;
  line-height: 1.5;
  color: var(--c-charcoal);
  margin: 24px 0 20px;
  font-weight: 300;
}

.about-content .muted {
  color: var(--c-muted);
  margin-bottom: 40px;
  max-width: 500px;
}

.stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--c-line);
}

.stat {
  text-align: left;
}

.stat-num {
  font-family: var(--f-serif);
  font-size: 42px;
  color: var(--c-wine);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-num sup {
  font-size: 0.5em;
  color: var(--c-gold);
  vertical-align: super;
}

.stat-label {
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--c-line);
}

/* ============== SERVICES ============== */
.services {
  padding: 120px 0;
  background: var(--c-cream-warm);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-gold-soft), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  position: relative;
  background: var(--c-cream);
  border: 1px solid var(--c-line);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--t-base);
}

.service-card:hover {
  border-color: var(--c-gold);
  transform: translateY(-4px);
  box-shadow: 0 24px 60px -20px rgba(107, 20, 36, 0.15);
}

.service-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.service-card:hover .service-image img {
  transform: scale(1.06);
}

.service-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(42, 37, 32, 0.15));
  pointer-events: none;
}

.service-body {
  padding: 32px 36px 36px;
  position: relative;
}

.service-num {
  position: absolute;
  top: -28px;
  right: 28px;
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 56px;
  color: var(--c-gold);
  background: var(--c-cream);
  padding: 0 12px;
  line-height: 1;
}

.service-body h3 {
  font-size: 28px;
  margin-bottom: 12px;
  color: var(--c-wine);
}

.service-body p {
  color: var(--c-muted);
  margin-bottom: 20px;
  font-size: 15px;
}

.service-arrow {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-gold-deep);
  font-weight: 500;
  display: inline-block;
  transition: transform var(--t-fast);
}

.service-card:hover .service-arrow {
  transform: translateX(6px);
  color: var(--c-wine);
}

/* ============== COLLECTION (Masonry) ============== */
.collection {
  padding: 120px 0;
}

.masonry {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 280px;
  gap: 16px;
}

.masonry-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--c-blush);
}

.masonry-item.m-tall {
  grid-row: span 2;
}

.masonry-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.masonry-item:hover img {
  transform: scale(1.08);
}

.masonry-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(107, 20, 36, 0.7));
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 24px;
  opacity: 0;
  transition: opacity var(--t-base);
}

.masonry-overlay span {
  color: #fff;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  border-bottom: 1px solid var(--c-gold);
  padding-bottom: 4px;
}

.masonry-item:hover .masonry-overlay {
  opacity: 1;
}

/* ============== PROCESS ============== */
.process {
  padding: 120px 0;
  background: var(--c-cream-warm);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  position: relative;
}

.process-line {
  position: absolute;
  top: 30px;
  left: 8.33%;
  right: 8.33%;
  height: 1px;
  background: var(--c-gold-soft);
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  background: var(--c-cream);
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 22px;
  color: var(--c-wine);
  transition: all var(--t-base);
}

.process-step:hover .step-num {
  background: var(--c-gold);
  color: var(--c-cream);
  transform: scale(1.05);
}

.process-step h4 {
  font-size: 20px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.6;
}

/* ============== TESTIMONIALS ============== */
.testimonials {
  padding: 120px 0;
}

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

.testi-card {
  background: var(--c-cream-warm);
  padding: 48px 36px 36px;
  position: relative;
  border: 1px solid var(--c-line);
}

.testi-quote {
  position: absolute;
  top: -10px;
  left: 24px;
  font-family: var(--f-serif);
  font-size: 100px;
  color: var(--c-gold);
  line-height: 1;
  font-style: italic;
}

.testi-card p {
  font-family: var(--f-serif);
  font-size: 18px;
  font-style: italic;
  line-height: 1.6;
  color: var(--c-charcoal);
  margin-bottom: 24px;
}

.testi-author {
  border-top: 1px solid var(--c-line);
  padding-top: 16px;
}

.testi-name {
  font-weight: 500;
  color: var(--c-wine);
  margin-bottom: 2px;
}

.testi-role {
  font-size: 13px;
  color: var(--c-muted);
}

/* ============== FINAL CTA ============== */
.final-cta {
  position: relative;
  padding: 140px 0;
  overflow: hidden;
  text-align: center;
  color: #fff;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(42, 37, 32, 0.7), rgba(107, 20, 36, 0.65));
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-eyebrow {
  font-family: var(--f-serif);
  font-style: italic;
  color: var(--c-gold-soft);
  font-size: 14px;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.cta-title {
  font-size: clamp(36px, 5vw, 60px);
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
}

.cta-title em {
  color: var(--c-gold-soft);
  font-style: italic;
}

.cta-sub {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 40px;
}

/* ============== FOOTER ============== */
.site-footer {
  background: var(--c-forest);
  color: rgba(250, 246, 238, 0.7);
  padding: 80px 0 0;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 64px;
  padding-bottom: 48px;
}

.footer-logo {
  height: 80px;
  width: auto;
  margin-bottom: 20px;
  opacity: 1;
  filter: brightness(1.15);
}

.footer-brand h3 {
  font-family: var(--f-serif);
  color: var(--c-cream);
  font-size: 18px;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.footer-tax {
  font-size: 12px;
  color: var(--c-gold-soft);
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-info li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.5;
}

.footer-info svg {
  width: 16px;
  height: 16px;
  color: var(--c-gold);
  flex-shrink: 0;
  margin-top: 4px;
}

.footer-col h4 {
  color: var(--c-gold);
  font-size: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: var(--f-sans);
  font-weight: 500;
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul a {
  font-size: 14px;
  transition: color var(--t-fast);
}

.footer-col ul a:hover {
  color: var(--c-gold-soft);
}

.footer-col .hours li {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.footer-col .hours strong {
  color: var(--c-gold-soft);
  font-weight: 500;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-gold);
  transition: all var(--t-fast);
}

.footer-social a:hover {
  background: var(--c-gold);
  color: var(--c-forest);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(201, 169, 110, 0.2);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(250, 246, 238, 0.5);
}

.footer-credit em {
  color: var(--c-gold);
  font-style: normal;
}

/* ============== FLOATING ZALO ============== */
.float-zalo {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: #0084FF;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99;
  box-shadow: 0 8px 24px rgba(0, 132, 255, 0.4);
  transition: transform var(--t-fast);
}

.float-zalo:hover {
  transform: scale(1.08);
}

.float-zalo svg {
  width: 28px;
  height: 28px;
  position: relative;
  z-index: 2;
}

.float-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #0084FF;
  animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* ============== RESPONSIVE ============== */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-image {
    aspect-ratio: 16/10;
  }

  .services-grid {
    gap: 24px;
  }

  .testi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 40px;
  }

  .process-line {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }

  .container { padding: 0 20px; }

  /* Header mobile */
  .main-nav {
    position: fixed;
    top: var(--header-h);
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: calc(100vh - var(--header-h));
    background: var(--c-cream);
    flex-direction: column;
    justify-content: flex-start;
    padding: 32px;
    gap: 20px;
    transition: right var(--t-base);
    border-left: 1px solid var(--c-line);
  }
  .main-nav.open { right: 0; }
  .main-nav a {
    font-size: 18px;
    font-family: var(--f-serif);
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--c-line);
  }
  .main-nav a::after { display: none; }

  .btn-zalo-header { display: none; }
  .mobile-toggle { display: flex; }

  /* Logo mobile */
  .logo img { height: 38px; }
  .logo-name { font-size: 18px; }
  .logo-tag { display: none; }

  /* Sections */
  section { padding: 80px 0 !important; }
  .section-head { margin-bottom: 48px; }

  /* Hero */
  .hero-cta { flex-direction: column; width: 100%; max-width: 280px; margin: 0 auto; }
  .hero-cta .btn { width: 100%; }

  /* About */
  .stats {
    flex-wrap: wrap;
    gap: 24px;
  }
  .stat-divider { display: none; }
  .stat-num { font-size: 36px; }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
  }
  .service-num {
    font-size: 44px;
    top: -22px;
  }

  /* Masonry */
  .masonry {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 200px;
    gap: 12px;
  }
  .masonry-item.m-tall {
    grid-row: span 2;
  }

  /* Process */
  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Testimonials */
  .testi-grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* Floating */
  .float-zalo {
    width: 52px;
    height: 52px;
    bottom: 20px;
    right: 20px;
  }
  .float-zalo svg { width: 24px; height: 24px; }
}

/* ANIMATION ON SCROLL */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* PAGE STYLES (used by sub-pages) */
.page-hero {
  padding-top: calc(var(--header-h) + 80px);
  padding-bottom: 80px;
  background: var(--c-cream-warm);
  text-align: center;
  position: relative;
}

.page-hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  margin-bottom: 16px;
}

.page-hero h1 em {
  font-style: italic;
  color: var(--c-wine);
}

.page-hero p {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--c-muted);
  max-width: 640px;
  margin: 0 auto;
}

.page-content {
  padding: 80px 0;
}

.page-content .narrow {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.page-content h2 {
  font-size: 36px;
  margin-bottom: 24px;
}

.page-content p {
  margin-bottom: 20px;
  font-size: 17px;
  line-height: 1.8;
}

.page-content .cta-row {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin: 56px auto;
  max-width: 900px;
}

.feature-item {
  text-align: center;
  padding: 32px 24px;
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-serif);
  font-style: italic;
  color: var(--c-wine);
  font-size: 22px;
}

.feature-item h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.feature-item p {
  font-size: 15px;
  color: var(--c-muted);
}

.image-showcase {
  margin: 56px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.image-showcase img {
  aspect-ratio: 3/4;
  object-fit: cover;
  width: 100%;
}

.video-showcase {
  margin: 56px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.video-showcase video {
  aspect-ratio: 9/16;
  object-fit: cover;
  width: 100%;
  background: var(--c-blush);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

@media (max-width: 768px) {
  .feature-grid, .image-showcase, .video-showcase {
    grid-template-columns: 1fr;
  }
}

/* Contact page specific */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  font-size: 28px;
  margin-bottom: 24px;
  color: var(--c-wine);
}

.contact-info .branch {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--c-line);
}

.contact-info .branch:last-child {
  border-bottom: none;
}

.contact-info h4 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--c-charcoal);
}

.contact-info p {
  margin: 0 0 4px;
  font-size: 15px;
  color: var(--c-muted);
}

.contact-info p strong {
  color: var(--c-text);
  font-weight: 500;
}

.contact-map {
  width: 100%;
  height: 480px;
  border: 1px solid var(--c-line);
}

@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .contact-map {
    height: 360px;
  }
}