/* ==========================================================================
   AN GIA DESIGN & BUILD — Stylesheet
   Design system: charcoal/black + warm off-white, gold accent, light/dark
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --gold: #c9a227;
  --gold-light: #e8c766;
  --gold-dark: #9c7d1c;
  --gold-rgb: 201, 162, 39;

  --font-display: 'Playfair Display', 'Be Vietnam Pro', Georgia, serif;
  --font-body: 'Inter', 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container-w: 1240px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --dur: .5s;
}

:root[data-theme="dark"] {
  --bg: #0a0a0c;
  --bg-elevated: #111114;
  --surface: #17171b;
  --surface-alt: #1e1e23;
  --border: rgba(255, 255, 255, .09);
  --border-strong: rgba(255, 255, 255, .16);
  --text: #f4f1e8;
  --text-muted: #a8a49a;
  --text-faint: #726e64;
  --shadow: 0 20px 60px rgba(0, 0, 0, .5);
  --overlay-grid: rgba(255, 255, 255, .035);
  --hero-fade: linear-gradient(180deg, rgba(10,10,12,.2) 0%, rgba(10,10,12,.75) 65%, #0a0a0c 100%);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #faf8f3;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-alt: #f2eee3;
  --border: rgba(20, 18, 10, .1);
  --border-strong: rgba(20, 18, 10, .18);
  --text: #1c1a14;
  --text-muted: #5f5b4e;
  --text-faint: #8b8676;
  --shadow: 0 20px 50px rgba(30, 25, 10, .12);
  --overlay-grid: rgba(20, 18, 10, .04);
  --hero-fade: linear-gradient(180deg, rgba(250,248,243,.15) 0%, rgba(250,248,243,.8) 65%, #faf8f3 100%);
  color-scheme: light;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .35s ease, color .35s ease;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
svg { width: 1em; height: 1em; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 28px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------- Background grid decoration ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--overlay-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--overlay-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 75%);
}

/* ---------- Type ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body);
  font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.eyebrow::before { content: ''; width: 22px; height: 1px; background: var(--gold); display: inline-block; }

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin-bottom: 16px;
}
.section-subtitle { color: var(--text-muted); font-size: 1.05rem; max-width: 640px; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.reveal { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .section-subtitle { margin-left: auto; margin-right: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 600; font-size: .95rem;
  letter-spacing: .01em;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background-color .3s, color .3s, border-color .3s;
  white-space: nowrap;
}
.btn-sm { padding: 10px 20px; font-size: .85rem; }
.btn-block { width: 100%; }
.btn-gold {
  background: linear-gradient(135deg, var(--gold-light), var(--gold) 60%, var(--gold-dark));
  color: #17140a;
  box-shadow: 0 10px 30px rgba(var(--gold-rgb), .28);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(var(--gold-rgb), .4); }
.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }
.btn-outline {
  border: 1.5px solid var(--gold);
  color: var(--gold);
}
.btn-outline:hover { background: var(--gold); color: #17140a; transform: translateY(-2px); }

/* ---------- Reveal-on-scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============================= HEADER ============================= */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 0;
  transition: background-color .4s ease, box-shadow .4s ease, padding .3s ease, border-color .4s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
  padding: 12px 0;
  box-shadow: var(--shadow);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 42px; height: 42px; border-radius: 10px; object-fit: cover; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: .04em; }
.brand-sub { font-size: .6rem; letter-spacing: .18em; color: var(--gold); font-weight: 600; }

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  font-size: .9rem; font-weight: 500; color: var(--text-muted);
  position: relative; padding: 4px 0;
  transition: color .25s ease;
}
.main-nav a::after {
  content: ''; position: absolute; left: 0; bottom: -3px; width: 0; height: 1.5px;
  background: var(--gold); transition: width .3s var(--ease);
}
.main-nav a:hover { color: var(--text); }
.main-nav a:hover::after, .main-nav a.is-active::after { width: 100%; }
.main-nav a.is-active { color: var(--gold); }

.header-actions { display: flex; align-items: center; gap: 10px; }
.lang-toggle, .theme-toggle {
  width: 38px; height: 38px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color .25s ease, color .25s ease, transform .25s ease;
}
.lang-toggle { font-size: .72rem; font-weight: 700; letter-spacing: .03em; }
.lang-toggle:hover, .theme-toggle:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-1px); }

.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.nav-cta { display: inline-flex; }

.menu-toggle {
  display: none; width: 38px; height: 38px; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.menu-toggle span { width: 20px; height: 1.6px; background: var(--text); transition: transform .3s ease, opacity .3s ease; }
.menu-toggle.is-open span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* ============================= HERO ============================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: 110px;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg { position: absolute; inset: 0; z-index: -1; background: #0a0a0c; }
.hero-slideshow { position: absolute; inset: 0; overflow: hidden; }
.hero-slideshow img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0;
  filter: saturate(1.05) contrast(1.03);
  animation: heroSlide 42s infinite;
}
.hero-slideshow img:nth-child(1) { animation-delay: 0s; }
.hero-slideshow img:nth-child(2) { animation-delay: -6s; }
.hero-slideshow img:nth-child(3) { animation-delay: -12s; }
.hero-slideshow img:nth-child(4) { animation-delay: -18s; }
.hero-slideshow img:nth-child(5) { animation-delay: -24s; }
.hero-slideshow img:nth-child(6) { animation-delay: -30s; }
.hero-slideshow img:nth-child(7) { animation-delay: -36s; }
@keyframes heroSlide {
  0%     { opacity: 0; }
  2.4%   { opacity: 1; }
  12%    { opacity: 1; }
  14.3%  { opacity: 0; }
  100%   { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-slideshow img { animation: none; opacity: 0; }
  .hero-slideshow img:first-child { opacity: 1; }
}

.hero::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(8,7,6,.6) 0%, rgba(8,7,6,.32) 34%, rgba(8,7,6,.68) 100%);
}
.hero { border-bottom: 1px solid rgba(0, 0, 0, .3); }

.hero-inner { text-align: center; max-width: 880px; margin: 0 auto; color: #f7f5f0; }
.hero-inner .eyebrow { color: var(--gold-light); }
.hero-inner .eyebrow::before { background: var(--gold-light); }
.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  margin: 10px 0 26px;
  color: #f7f5f0;
  text-shadow: 0 4px 26px rgba(0, 0, 0, .45);
}
.hero-title .line { display: block; }
.line-gold {
  background: linear-gradient(100deg, var(--gold-light), var(--gold) 45%, var(--gold-dark));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: none;
}
.hero-subtitle { font-size: clamp(1.02rem, 1.6vw, 1.2rem); color: rgba(247, 245, 240, .86); max-width: 620px; margin: 0 auto 40px; text-shadow: 0 2px 16px rgba(0, 0, 0, .4); }
.hero-ctas { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero .btn-ghost { color: #f7f5f0; border-color: rgba(247, 245, 240, .5); }
.hero .btn-ghost:hover { border-color: var(--gold-light); color: var(--gold-light); }

.scroll-cue {
  position: absolute; left: 50%; bottom: 32px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(247, 245, 240, .75);
  animation: bob 2.4s ease-in-out infinite;
}
.scroll-cue svg { width: 16px; height: 16px; }
@keyframes bob { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ============================= STATS ============================= */
.stats { padding: 60px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat { display: flex; flex-direction: column; gap: 6px; }
.stat-num { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 700; color: var(--gold); }
.stat-label { font-size: .88rem; color: var(--text-muted); max-width: 220px; margin: 0 auto; }

/* ============================= ABOUT ============================= */
.about { padding: 120px 0; }
.about-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; align-items: center; }
.about-visual { position: relative; }
.about-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 5;
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  padding: 50px;
}
.about-logo-img { width: 100%; max-width: 260px; border-radius: 16px; }
.about-badge {
  position: absolute; bottom: -26px; right: -18px;
  background: var(--bg-elevated); border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 2px;
  min-width: 170px;
}
.about-badge-num { font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; color: var(--gold); }
.about-badge span:last-child { font-size: .8rem; color: var(--text-muted); }

.about-content p { color: var(--text-muted); margin-bottom: 18px; }
.about-points { margin: 28px 0; display: flex; flex-direction: column; gap: 18px; }
.about-points li { display: flex; gap: 14px; align-items: flex-start; }
.about-points svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--gold); margin-top: 2px; }
.about-points strong { display: block; margin-bottom: 3px; font-size: 1rem; }
.about-points span { color: var(--text-muted); font-size: .93rem; }
.about-location { display: flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: .93rem; }
.about-location svg { width: 18px; height: 18px; color: var(--gold); }

/* ============================= SERVICES ============================= */
.services { padding: 120px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  transition: transform .4s var(--ease), border-color .3s ease, box-shadow .4s ease;
}
.service-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.service-card-core { border-color: rgba(var(--gold-rgb), .5); background: linear-gradient(160deg, rgba(var(--gold-rgb), .07), transparent 60%); }
.core-badge {
  position: absolute; top: 20px; right: 20px;
  font-size: .68rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--gold); border: 1px solid rgba(var(--gold-rgb), .4); border-radius: 999px; padding: 4px 10px;
}
.service-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(var(--gold-rgb), .1);
  color: var(--gold);
  margin-bottom: 20px;
}
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; }
.service-card p { color: var(--text-muted); font-size: .92rem; }

/* ============================= PROCESS ============================= */
.process { padding: 120px 0; }
.process-steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 28px;
  counter-reset: step;
}
.process-step { position: relative; padding-top: 8px; border-top: 2px solid var(--border); }
.step-num {
  display: block; font-family: var(--font-display); font-weight: 700;
  font-size: 1.6rem; color: var(--gold); margin-bottom: 14px; margin-top: -22px;
  background: var(--bg); display: inline-block; padding-right: 14px;
}
.process-step h3 { font-size: 1.1rem; margin-bottom: 8px; font-family: var(--font-display); font-weight: 600; }
.process-step p { color: var(--text-muted); font-size: .92rem; }

/* ============================= PROJECTS ============================= */
.projects { padding: 120px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.filter-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 44px; }
.filter-btn {
  padding: 9px 20px; border-radius: 999px; border: 1px solid var(--border);
  font-size: .85rem; font-weight: 500; color: var(--text-muted);
  transition: all .25s ease;
}
.filter-btn:hover { border-color: var(--gold); color: var(--text); }
.filter-btn.is-active { background: var(--gold); border-color: var(--gold); color: #17140a; font-weight: 600; }

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: 18px;
}
.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
  cursor: pointer;
  transition: opacity .35s ease, transform .4s var(--ease);
}
.gallery-item.span-2 { grid-column: span 2; }
.gallery-item.is-hidden { display: none; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item:hover { transform: translateY(-4px); }

.ph-tile {
  width: 100%; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  background:
    repeating-linear-gradient(135deg, rgba(var(--gold-rgb),.06) 0 2px, transparent 2px 18px),
    var(--surface-alt);
  color: var(--text-faint);
  text-align: center; padding: 20px;
}
.ph-tile svg { width: 34px; height: 34px; color: var(--gold); opacity: .55; }
.ph-tile span { font-size: .78rem; max-width: 160px; }

.projects-cta { text-align: center; margin-top: 50px; }

/* ============================= WHY ============================= */
.why { padding: 120px 0; }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.why-card { padding: 30px 6px; }
.why-icon {
  width: 50px; height: 50px; border-radius: 50%;
  border: 1px solid rgba(var(--gold-rgb), .35);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold); margin-bottom: 20px;
}
.why-icon svg { width: 24px; height: 24px; }
.why-card h3 { font-family: var(--font-display); font-size: 1.08rem; font-weight: 600; margin-bottom: 8px; }
.why-card p { color: var(--text-muted); font-size: .92rem; }

/* ============================= CTA BANNER ============================= */
.cta-banner { padding: 90px 0; position: relative; overflow: hidden; }
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(var(--gold-rgb),.14), transparent 55%), var(--surface);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.cta-banner-inner { position: relative; text-align: center; max-width: 640px; margin: 0 auto; }
.cta-banner-inner h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 600; margin-bottom: 14px; }
.cta-banner-inner p { color: var(--text-muted); margin-bottom: 30px; }

/* ============================= CONTACT ============================= */
.contact { padding: 120px 0; }
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }

.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: .84rem; font-weight: 600; color: var(--text-muted); }
.field input, .field select, .field textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 15px;
  transition: border-color .25s ease, box-shadow .25s ease;
  resize: vertical;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(var(--gold-rgb), .15);
}
.field-error { display: none; color: #d16060; font-size: .78rem; }
.field.is-invalid input, .field.is-invalid textarea { border-color: #d16060; }
.field.is-invalid .field-error { display: block; }

.form-success {
  margin-top: 16px; padding: 14px 16px; border-radius: var(--radius-sm);
  background: rgba(var(--gold-rgb), .12); border: 1px solid rgba(var(--gold-rgb), .3);
  font-size: .88rem; color: var(--text);
}
.form-note { margin-top: 14px; font-size: .78rem; color: var(--text-faint); }

.contact-info { display: flex; flex-direction: column; gap: 24px; }
.info-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 32px; display: flex; flex-direction: column; gap: 22px;
}
.info-row { display: flex; gap: 16px; align-items: flex-start; }
.info-row svg { width: 22px; height: 22px; color: var(--gold); flex-shrink: 0; margin-top: 2px; }
.info-row div { display: flex; flex-direction: column; gap: 3px; }
.info-row span { font-size: .78rem; color: var(--text-faint); text-transform: uppercase; letter-spacing: .05em; }
.info-row strong { font-size: .95rem; font-weight: 600; }
.info-row strong a:hover { color: var(--gold); text-decoration: underline; }
.footer-contact a:hover { color: var(--gold); }

.map-placeholder {
  background: var(--surface-alt); border: 1px solid var(--border-strong); border-radius: var(--radius-lg);
  padding: 32px 30px; text-align: center; color: var(--text-faint);
  display: flex; flex-direction: column; align-items: stretch; gap: 12px;
  justify-content: center;
}
.map-placeholder svg { width: 32px; height: 32px; color: var(--gold); opacity: .6; }
.map-placeholder p { font-size: .82rem; max-width: 260px; }
.quick-contact-title {
  font-family: var(--font-display); font-size: 1rem; font-weight: 600;
  color: var(--text); max-width: none; margin-bottom: 4px;
}

/* ============================= FOOTER ============================= */
.site-footer { background: var(--bg-elevated); border-top: 1px solid var(--border); padding-top: 70px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 40px; padding-bottom: 50px; }
.footer-brand p { color: var(--text-muted); font-size: .88rem; margin: 16px 0 20px; max-width: 280px; }
.footer-col h4 { font-size: .85rem; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 18px; color: var(--text-muted); }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: .9rem; color: var(--text); transition: color .2s ease; }
.footer-col a:hover { color: var(--gold); }
.footer-contact li { font-size: .88rem; color: var(--text-muted); }

.social-row { display: flex; gap: 10px; }
.social-row a {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; color: var(--text-muted);
  transition: all .25s ease;
}
.social-row svg { width: 16px; height: 16px; }
.social-row a:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 28px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  font-size: .8rem; color: var(--text-faint);
}

/* ============================= FLOATING UI ============================= */
.fab {
  position: fixed; right: 26px; z-index: 90;
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
  transition: transform .3s var(--ease), opacity .3s ease, box-shadow .3s ease;
}
.fab svg { width: 22px; height: 22px; }
.fab-contact {
  bottom: 26px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: #17140a;
}
.fab-contact:hover { transform: translateY(-3px) scale(1.05); }
.fab-top {
  bottom: 92px;
  background: var(--bg-elevated); border: 1px solid var(--border-strong); color: var(--text);
  opacity: 0; pointer-events: none; transform: translateY(10px);
}
.fab-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.fab-top:hover { border-color: var(--gold); color: var(--gold); }

/* ============================= LIGHTBOX ============================= */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(6, 6, 8, .92);
  display: flex; align-items: center; justify-content: center;
  padding: 40px;
  animation: fade-in .3s ease;
}
.lightbox[hidden] { display: none; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.lightbox-inner { max-width: 900px; max-height: 85vh; width: 100%; }
.lightbox-inner img { width: 100%; height: 100%; object-fit: contain; border-radius: var(--radius-md); }
.lightbox-close {
  position: absolute; top: 24px; right: 30px;
  font-size: 2.2rem; line-height: 1; color: #fff;
  width: 46px; height: 46px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.2);
}
.lightbox-close:hover { border-color: var(--gold); color: var(--gold); }

/* ============================= RESPONSIVE ============================= */
@media (max-width: 980px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 380px; margin: 0 auto; }
  .services-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 760px) {
  .main-nav, .nav-cta { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.is-open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-elevated); border-bottom: 1px solid var(--border);
    padding: 10px 28px 24px;
    box-shadow: var(--shadow);
  }
  .main-nav.is-open a { width: 100%; padding: 12px 0; border-bottom: 1px solid var(--border); }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 34px 20px; }
  .services-grid, .why-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
  .gallery-item.span-2 { grid-column: span 2; }
  .hero { padding-top: 130px; }
  .fab { right: 16px; }
  .fab-contact { bottom: 16px; }
  .fab-top { bottom: 80px; }
}

@media (max-width: 480px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; }
}