/* ============================
   V8 ESTATE — Design System
   ============================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Inter:wght@300;400;500&display=swap');

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

:root {
  --black:   #0a0a0a;
  --dark:    #111111;
  --charcoal:#1c1c1c;
  --stone:   #2a2a2a;
  --muted:   #6b6b6b;
  --silver:  #999999;
  --light:   #d4c9b8;
  --cream:   #f0ebe2;
  --white:   #fafaf8;
  --gold:    #c9a96e;
  --gold-dim:#9a7a50;

  --font-serif: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-sans:  'Inter', 'Helvetica Neue', sans-serif;

  --nav-h: 72px;
  --max-w: 1280px;
  --gap:   2rem;
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
ul { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.serif { font-family: var(--font-serif); }
.sans  { font-family: var(--font-sans); }

.label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

/* --- Layout --- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gap); }

.section { padding: 80px 0; }
.section--lg { padding: 120px 0; }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 100;
  display: flex;
  align-items: center;
}
/* Backdrop blur via pseudo-element — tránh stacking context issue trên Safari iOS 18 */
.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: -1;
}

.nav__inner {
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--white);
  display: flex;
  align-items: center;
}

.nav__logo span {
  color: var(--gold);
}

.nav__links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav__links a {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--silver);
  transition: color 0.2s;
}

.nav__links a:hover,
.nav__links a.active { color: var(--white); }

.nav__cta {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold) !important;
  border: 1px solid var(--gold-dim);
  padding: 8px 20px;
  transition: all 0.2s !important;
}

.nav__cta:hover {
  background: var(--gold) !important;
  color: var(--black) !important;
}

.nav__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__mobile-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--cream);
  margin: 6px 0;
  transition: all 0.3s;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  background: var(--black);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #0a0a0a 0%, #1a1510 50%, #0a0a0a 100%);
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1600596542815-ffad4c1539a9?w=1600&q=80') center/cover no-repeat;
  opacity: 0.18;
  mix-blend-mode: luminosity;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: calc(var(--nav-h) + 80px) var(--gap) 0;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(56px, 8vw, 112px);
  font-weight: 300;
  line-height: 1.0;
  color: var(--white);
  max-width: 900px;
}

.hero__title em {
  font-style: italic;
  color: var(--gold);
}

.hero__sub {
  margin-top: 32px;
  font-size: 17px;
  color: var(--silver);
  max-width: 540px;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

.hero__actions {
  margin-top: 52px;
  display: flex;
  gap: 20px;
  align-items: center;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 14px 32px;
  transition: all 0.25s;
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--gold);
  color: var(--black);
}

.btn--primary:hover {
  background: var(--cream);
  color: var(--black);
}

.btn--outline {
  background: transparent;
  color: var(--cream);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn--ghost {
  background: transparent;
  color: var(--silver);
  padding: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.btn--ghost::after {
  content: '→';
  font-size: 14px;
  transition: transform 0.2s;
}

.btn--ghost:hover {
  color: var(--gold);
}

.btn--ghost:hover::after {
  transform: translateX(4px);
}

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 48px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--white);
}

/* --- Property Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
}

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

.property-card {
  position: relative;
  overflow: hidden;
  background: var(--charcoal);
  cursor: pointer;
}

.property-card__image {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.property-card--large .property-card__image {
  aspect-ratio: 16/10;
}

/* Trong lưới featured: thẻ lớn lấp đầy ô, ảnh tự giãn theo chiều cao cột phải */
@media (min-width: 1025px) {
  .card-grid--featured .property-card--large {
    display: flex;
    flex-direction: column;
  }
  .card-grid--featured .property-card--large .property-card__image {
    flex: 1;
    aspect-ratio: auto !important;
    min-height: 0;
  }
  .card-grid--featured .property-card--large .property-card__body {
    flex-shrink: 0;
  }
}

.property-card__image img {
  transition: transform 0.6s ease;
}

.property-card:hover .property-card__image img {
  transform: scale(1.04);
}

.property-card__body {
  padding: 24px;
  background: var(--dark);
}

.property-card__tag {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}

.property-card__title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 10px;
}

.property-card__desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.property-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.property-card__price {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--gold);
}

/* --- Article / Blog Cards --- */
.article-card {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  cursor: pointer;
  transition: opacity 0.2s;
}

.article-card:hover { opacity: 0.7; }

.article-card__image {
  flex-shrink: 0;
  width: 120px;
  height: 80px;
  overflow: hidden;
  background: var(--charcoal);
}

.article-card__body { flex: 1; }

.article-card__category {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}

.article-card__title {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 8px;
}

.article-card__date {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* Blog grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 24px;
}

.blog-card {
  cursor: pointer;
}

.blog-card__image {
  aspect-ratio: 3/2;
  overflow: hidden;
  background: var(--charcoal);
  margin-bottom: 18px;
}

.blog-card__image img { transition: transform 0.5s; }
.blog-card:hover .blog-card__image img { transform: scale(1.04); }

.blog-card__cat {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.blog-card__title {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 10px;
}

.blog-card__excerpt {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__date {
  font-size: 11px;
  color: var(--stone);
  margin-top: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* Featured blog */
.blog-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 64px;
  background: var(--charcoal);
}

.blog-featured__image {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.blog-featured__image img { transition: transform 0.6s; }
.blog-featured:hover .blog-featured__image img { transform: scale(1.04); }

.blog-featured__body {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: var(--dark);
}

.blog-featured__title {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 16px;
}

.blog-featured__excerpt {
  font-size: 14px;
  color: var(--silver);
  line-height: 1.8;
  margin-bottom: 32px;
}

/* --- Divider --- */
.divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin: 0;
}

/* --- Stats Row --- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-left: 1px solid rgba(255,255,255,0.08);
}

.stat {
  padding: 48px 40px;
  border-right: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.stat__number {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 300;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
}

.stat__number span { color: var(--gold); }

.stat__label {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

/* --- Ticker / Marquee --- */
.ticker {
  overflow: hidden;
  background: var(--charcoal);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 14px 0;
  white-space: nowrap;
}

.ticker__inner {
  display: inline-flex;
  gap: 0;
  animation: ticker 30s linear infinite;
}

.ticker__item {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 40px;
}

.ticker__item span { color: var(--gold); margin-right: 8px; }

@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --- Philosophy / Quote Block --- */
.quote-block {
  background: var(--charcoal);
  padding: 80px var(--gap);
  text-align: center;
}

.quote-block blockquote {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.5vw, 44px);
  font-weight: 300;
  font-style: italic;
  color: var(--white);
  max-width: 800px;
  margin: 0 auto 24px;
  line-height: 1.4;
}

.quote-block cite {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-style: normal;
}

/* --- About Section --- */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-split__image {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--charcoal);
}

.about-split__title {
  font-size: clamp(36px, 5vw, 64px);
  color: var(--white);
  margin-bottom: 28px;
  line-height: 1.1;
}

.about-split__body {
  font-size: 15px;
  color: var(--silver);
  line-height: 1.9;
  margin-bottom: 20px;
}

/* --- Contact Form --- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group--full { grid-column: 1 / -1; }

.form-group label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 300;
  padding: 14px 16px;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--gold-dim);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }

.form-group textarea { min-height: 140px; resize: vertical; }

.form-group select option { background: var(--dark); }

/* --- Footer --- */
.footer {
  background: var(--charcoal);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--white);
  margin-bottom: 16px;
}

.footer__brand span { color: var(--gold); }

.footer__desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 280px;
}

.footer__heading {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

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

.footer__links a {
  font-size: 13px;
  color: var(--muted);
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.footer__links a:hover { color: var(--cream); }

.footer__bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* --- Page Header --- */
.page-hero {
  padding: calc(var(--nav-h) + 80px) 0 80px;
  background: var(--dark);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.page-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.page-hero__eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--gold);
}

.page-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6vw, 80px);
  font-weight: 300;
  color: var(--white);
  line-height: 1.05;
}

.page-hero__desc {
  margin-top: 20px;
  font-size: 14px;
  color: var(--silver);
  max-width: 540px;
  line-height: 1.8;
}

/* --- Filter Tabs --- */
.filter-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 48px;
}

.filter-tab {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 14px 24px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.filter-tab:hover { color: var(--cream); }

.filter-tab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* --- Property Detail --- */
.property-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 40px;
}

.spec {
  padding: 24px;
  border-right: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}

.spec:last-child { border-right: none; }

.spec__value {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--white);
  margin-bottom: 4px;
}

.spec__label {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

/* --- Utility --- */
.text-gold  { color: var(--gold); }
.text-muted { color: var(--muted); }
.text-white { color: var(--white); }
.mt-4  { margin-top: 16px; }
.mt-8  { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mb-4  { margin-bottom: 16px; }
.mb-8  { margin-bottom: 32px; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--stone); }

/* --- Responsive --- */
/* ── SIDEBAR CTA ── */
.sidebar-cta {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 90;
  cursor: pointer;
  padding: 20px 0;
  text-decoration: none;
}
.sidebar-cta__line {
  width: 1px;
  height: 32px;
  background: #A67C52;
  opacity: 0.3;
  transition: all 0.4s ease;
  margin-bottom: 12px;
}
.sidebar-cta__text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: rgba(166,124,82,0.45);
  text-transform: uppercase;
  transition: all 0.4s ease;
  padding: 0 16px;
  white-space: nowrap;
}
.sidebar-cta__arrow {
  width: 1px;
  height: 32px;
  background: #A67C52;
  opacity: 0.3;
  transition: all 0.4s ease;
  margin-top: 12px;
  position: relative;
}
.sidebar-cta__arrow::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: -3px;
  width: 7px;
  height: 7px;
  border-right: 1px solid #A67C52;
  border-bottom: 1px solid #A67C52;
  transform: rotate(45deg);
  opacity: 0.5;
}
.sidebar-cta:hover .sidebar-cta__line,
.sidebar-cta:hover .sidebar-cta__arrow { opacity: 1; height: 48px; }
.sidebar-cta:hover .sidebar-cta__text { opacity: 1; color: #C49A6C; letter-spacing: 0.25em; }
@media (max-width: 768px) { .sidebar-cta { display: none; } }

@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid--featured { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .about-split { grid-template-columns: 1fr; gap: 40px; }
  .blog-featured { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --gap: 1.25rem; }
  .nav__links { display: none; }
  .nav__mobile-toggle { display: block; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    top: var(--nav-h);
    background: var(--black);
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 99;
  }
  .nav__links.open a {
    font-size: 20px;
    font-family: var(--font-serif);
    letter-spacing: 0.1em;
  }
  .card-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: repeat(3, 1fr); gap: 36px 14px; }
  .footer__grid > div:first-child { grid-column: 1 / -1; }
  .footer__links a { font-size: 12px; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .section { padding: 48px 0; }
  .hero__title { font-size: 42px; line-height: 1.15; }
  .hero__sub { font-size: 15px; }
  .property-specs { grid-template-columns: repeat(2, 1fr); }

  /* Typography */
  h1 { font-size: clamp(32px, 9vw, 52px) !important; }
  h2 { font-size: clamp(24px, 7vw, 36px) !important; }

  /* Buttons */
  .btn { padding: 14px 24px; font-size: 11px; white-space: nowrap; }
  .hero__actions { flex-direction: column; align-items: flex-start; gap: 12px; }

  /* Footer */
  .footer__grid > div { padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .footer__grid > div:last-child { border-bottom: none; padding-bottom: 0; }

  /* Location grid in homestay pages */
  .location-grid { grid-template-columns: 1fr !important; }

  /* Ticker */
  .ticker { font-size: 11px; }

  /* Section headings padding */
  .section-heading { margin-bottom: 32px; }
}

/* ── Zalo floating button ── */
.zalo-float {
  position: fixed;
  bottom: 32px;
  left: 32px;
  z-index: 999;
}
.zalo-float__btn {
  width: 52px;
  height: 52px;
  background: #0068FF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,104,255,0.45);
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.zalo-float__btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(0,104,255,0.65);
}
.zalo-float__tooltip {
  position: absolute;
  bottom: 62px;
  left: 0;
  background: #111;
  border: 1px solid rgba(201,169,110,0.3);
  padding: 10px 16px;
  white-space: nowrap;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #f5f0e8;
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity 0.2s, transform 0.2s;
}
.zalo-float:hover .zalo-float__tooltip {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
@media (max-width: 768px) {
  .zalo-float { bottom: 24px; left: 20px; }
  .zalo-float__btn { width: 46px; height: 46px; }
}