/* ═══════════════════════════════════════════════
   ACG Group Homepage Styles
   Font: Cormorant Garamond (display) + DM Sans (body)
   Theme: Dark navy / warm gold — refined & authoritative
═══════════════════════════════════════════════ */

:root {
  --navy:    #0f172a;
  --navy-2:  #1e293b;
  --navy-3:  #334155;
  --gold:    #CFA74F;
  --gold-lt: #e6c97a;
  --gold-dim: rgba(207,167,79,.18);
  --gold-ring: rgba(207,167,79,.30);
  --paper:   #ffffff;
  --smoke:   #f8fafc;
  --border:  #e2e8f0;
  --ink:     #0f172a;
  --muted:   #64748b;
  --radius:  16px;
  --shadow:  0 4px 24px rgba(15,23,42,.08);
  --shadow-lg: 0 12px 40px rgba(15,23,42,.13);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', ui-sans-serif, system-ui, -apple-system,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--smoke);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem; border-radius: 999px; padding: .75rem 1.6rem;
  font-family: 'DM Sans', sans-serif; font-weight: 600; font-size: .95rem;
  border: 2px solid transparent; cursor: pointer; transition: all .2s;
  text-decoration: none; white-space: nowrap;
}
.btn-gold {
  background: var(--gold); color: var(--navy); border-color: var(--gold);
}
.btn-gold:hover { background: var(--gold-lt); border-color: var(--gold-lt); text-decoration: none; }
.btn-outline {
  background: transparent; color: var(--navy); border-color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: #fff; text-decoration: none; }
.btn-dark {
  background: var(--navy); color: #fff; border-color: var(--navy);
}
.btn-dark:hover { background: var(--navy-2); text-decoration: none; }
.btn-block { width: 100%; }
.mini { font-size: .85rem; color: var(--muted); }

/* ══════════════════════════════
   HEADER
══════════════════════════════ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.88); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
}
.brand {
  display: flex; align-items: center; gap: .7rem;
  color: var(--navy); font-weight: 700; text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand img { border-radius: 8px; }
.brand-full { font-family: 'DM Sans', sans-serif; font-size: .95rem; font-weight: 700; letter-spacing: -.01em; }
.brand-abbr { display: none; font-weight: 800; font-size: 1rem; }

.nav { display: flex; align-items: center; gap: .25rem; }
.nav a {
  padding: .45rem .75rem; border-radius: 8px; font-size: .9rem;
  font-weight: 500; color: var(--navy-3); transition: background .15s;
}
.nav a:hover { background: #f1f5f9; text-decoration: none; color: var(--navy); }
.lang-toggle {
  border: 1px solid var(--border); background: #fff; border-radius: 999px;
  padding: .4rem .85rem; cursor: pointer; font-size: .85rem; font-weight: 600;
  color: var(--navy); margin-left: .5rem; transition: background .15s;
}
.lang-toggle:hover { background: #f8fafc; }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 22px; height: 2px; background: var(--navy);
  border-radius: 2px; transition: all .2s;
}

.mobile-nav {
  display: none; flex-direction: column; gap: 0;
  border-top: 1px solid var(--border); background: #fff; padding: 8px 24px 16px;
}
.mobile-nav a {
  padding: .7rem 0; font-weight: 500; border-bottom: 1px solid #f1f5f9;
  display: block; color: var(--navy);
}
.mobile-nav.open { display: flex; }

/* ══════════════════════════════
   HERO
══════════════════════════════ */
.hero {
  position: relative; overflow: hidden;
  background: var(--navy);
  padding: 100px 0 80px;
  min-height: 88vh; display: flex; align-items: center;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: .55;
}
.orb1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(207,167,79,.35), transparent 70%);
  top: -150px; left: -100px;
}
.orb2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(30,60,120,.6), transparent 70%);
  bottom: -100px; right: -80px;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-inner { position: relative; z-index: 2; max-width: 780px; }

.hero-eyebrow {
  display: flex; align-items: center; gap: .6rem;
  font-size: .85rem; color: var(--gold); font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 20px;
}
.dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--gold);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .5; transform: scale(1.4); }
}

.hero-title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 1.08; font-weight: 700;
  color: #fff; margin: 0 0 24px;
}
.hero-title .accent { color: var(--gold); font-style: italic; }

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem); color: rgba(255,255,255,.72);
  max-width: 600px; margin: 0 0 36px;
}

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 52px; }
.hero-cta .btn-outline { color: #fff; border-color: rgba(255,255,255,.4); }
.hero-cta .btn-outline:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.6); color:#fff; }

.hero-stats {
  display: flex; align-items: center; gap: 0;
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 28px;
}
.stat { padding: 0 28px 0 0; }
.stat:first-child { padding-left: 0; }
.stat-n {
  display: block; font-family: 'Cormorant Garamond', serif;
  font-size: 2.4rem; font-weight: 700; color: var(--gold); line-height: 1;
}
.stat-l { font-size: .8rem; color: rgba(255,255,255,.55); text-transform: uppercase; letter-spacing: .06em; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,.15); margin: 0 24px 0 0; }

/* ══════════════════════════════
   SECTION COMMONS
══════════════════════════════ */
.section { padding: 88px 0; }
.section-label {
  font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 12px;
}
.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700;
  margin: 0 0 14px; line-height: 1.15;
}
.section-sub {
  font-size: 1.05rem; color: var(--muted); max-width: 620px; margin: 0 0 52px;
}

/* ══════════════════════════════
   ABOUT
══════════════════════════════ */
.section-about { background: var(--paper); }

.about-layout {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: center;
}
.about-copy h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.7rem, 3.5vw, 2.5rem); font-weight: 700; margin: 0 0 20px;
}
.about-copy p { color: #334155; margin: 0 0 16px; }

.about-tags {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px;
}
.about-tags span {
  background: #f1f5f9; border: 1px solid var(--border);
  border-radius: 999px; padding: .4rem 1rem; font-size: .85rem; font-weight: 500;
}

.about-card-stack {
  position: relative; height: 260px;
}
.acard {
  position: absolute; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 22px; box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 12px;
  font-weight: 600; font-size: .9rem; width: 240px;
  transition: transform .3s;
}
.acard:hover { transform: translateY(-4px); }
.acard-icon { font-size: 1.5rem; }
.acard-1 { top: 0; left: 20px; border-left: 3px solid var(--gold); }
.acard-2 { top: 90px; left: 0; border-left: 3px solid #3b82f6; }
.acard-3 { top: 180px; left: 30px; border-left: 3px solid #10b981; }

/* ══════════════════════════════
   SERVICES / PILLARS
══════════════════════════════ */
.section-services { background: var(--smoke); }

.pillars {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}

.pillar {
  background: var(--paper); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
  box-shadow: var(--shadow); position: relative;
  transition: box-shadow .25s, transform .25s;
}
.pillar:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.pillar-num {
  position: absolute; top: 24px; right: 24px;
  font-family: 'Cormorant Garamond', serif; font-size: 3rem; font-weight: 700;
  color: var(--border); line-height: 1; user-select: none;
}
.pillar-icon { font-size: 2rem; margin-bottom: 14px; }
.pillar h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.45rem; font-weight: 700; margin: 0 0 12px; line-height: 1.2;
}
.pillar p { font-size: .93rem; color: #475569; margin: 0 0 16px; }

.pillar-list {
  list-style: none; padding: 0; margin: 0 0 20px;
}
.pillar-list li {
  font-size: .88rem; color: #475569; padding: .3rem 0;
  border-bottom: 1px solid #f1f5f9;
  display: flex; align-items: flex-start; gap: .5rem;
}
.pillar-list li::before {
  content: '—'; color: var(--gold); font-weight: 700; flex-shrink: 0; margin-top: 1px;
}

.pillar-link {
  font-size: .9rem; font-weight: 700; color: var(--navy);
  border-bottom: 2px solid var(--gold); padding-bottom: 1px;
  transition: color .15s;
}
.pillar-link:hover { color: var(--gold); text-decoration: none; }

/* ══════════════════════════════
   SUB-BRANDS
══════════════════════════════ */
.section-brands {
  background: var(--navy);
  position: relative; overflow: hidden;
}
.section-brands::before {
  content: '';
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
}
.section-brands .section-label { color: var(--gold-lt); }
.section-brands .section-title { color: #fff; }
.section-brands .section-sub { color: rgba(255,255,255,.6); }

.brands-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  position: relative; z-index: 2;
}
.brand-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius); padding: 36px;
  backdrop-filter: blur(4px);
  transition: background .25s, border-color .25s;
  display: flex; flex-direction: column; gap: 0;
}
.brand-card:hover {
  background: rgba(255,255,255,.1); border-color: var(--gold);
}
.bc-badge {
  font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 18px;
}
.bc-logo {
  width: 48px; height: 48px; border-radius: 10px;
  margin-bottom: 16px; background: rgba(255,255,255,.1); padding: 4px;
}
.brand-card h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem; font-weight: 700; color: #fff; margin: 0 0 12px;
}
.brand-card p {
  font-size: .92rem; color: rgba(255,255,255,.65); margin: 0 0 20px; line-height: 1.6;
}
.bc-list {
  list-style: none; padding: 0; margin: 0 0 28px; flex: 1;
}
.bc-list li {
  font-size: .88rem; color: rgba(255,255,255,.6); padding: .35rem 0;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.brand-card .btn-dark {
  background: var(--gold); color: var(--navy); border-color: var(--gold);
  align-self: flex-start;
}
.brand-card .btn-dark:hover { background: var(--gold-lt); border-color: var(--gold-lt); }

/* ══════════════════════════════
   CONTACT
══════════════════════════════ */
.section-contact { background: var(--paper); }

.contact-layout {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: start;
}
.card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow);
}
.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px;
}
label { display: block; margin-bottom: 16px; }
label span { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 6px; }
input, textarea, select {
  width: 100%; padding: 11px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: #fff;
  font-family: 'DM Sans', sans-serif; font-size: .95rem;
  outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--gold); box-shadow: 0 0 0 3px var(--gold-ring);
}

.contact-info {
  display: flex; flex-direction: column; gap: 28px; padding-top: 4px;
}
.ci-block {}
.ci-label {
  font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 10px;
}
.ci-line { font-size: .93rem; color: #334155; margin-bottom: 6px; }
.ci-line a { color: var(--navy); font-weight: 500; }
.ci-line a:hover { color: var(--gold); }

/* ══════════════════════════════
   FOOTER
══════════════════════════════ */
.site-footer {
  border-top: 1px solid var(--border); background: #fff; padding: 20px 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.foot-left {
  display: flex; align-items: center; gap: .6rem;
  font-size: .82rem; color: var(--muted);
}
.foot-left img { border-radius: 6px; }
.foot-right { display: flex; gap: 1.2rem; }
.foot-right a { font-size: .82rem; color: var(--muted); }
.foot-right a:hover { color: var(--navy); }

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
@media (max-width: 900px) {
  .nav a, .lang-toggle { display: none; }
  .hamburger { display: flex; }
  .brand-full { display: none; }
  .brand-abbr { display: block; }

  .about-layout { grid-template-columns: 1fr; }
  .about-card-stack { height: 80px; display: flex; gap: 12px; position: static; }
  .acard { position: static; width: auto; flex: 1; font-size: .8rem; padding: 12px 14px; }

  .pillars { grid-template-columns: 1fr; }
  .brands-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats .stat { padding: 0 16px 0 0; }
}

@media (max-width: 600px) {
  .section { padding: 60px 0; }
  .hero { padding: 70px 0 60px; min-height: auto; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; text-align: center; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .stat-divider { display: none; }
  .stat { padding: 0; }
  .about-card-stack { flex-direction: column; height: auto; }
  .acard { width: 100%; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}