/* =====================================================================
   KNF Gold Antwerp — Luxe design system
   Inspiratie: Tiffany · Cartier · Van Cleef · Bucherer · Apple-UX
   ===================================================================== */

:root {
  --ivory: #FBF9F4;
  --beige: #EFE7D8;
  --gold: #B8893E;          /* warm gold */
  --gold-soft: #C9A86A;     /* champagne */
  --gold-line: #E4D6BC;
  --black: #0B0B0C;
  --graphite: #26262A;
  --silver: #D9D9DE;
  --text: #1A1A1A;
  --muted: #7A7266;
  --card: #FFFFFF;
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --maxw: 1240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--ivory);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

h1, h2, h3, .serif { font-family: var(--serif); font-weight: 500; letter-spacing: 0.2px; }
h1 { font-size: clamp(2.6rem, 6vw, 5rem); line-height: 1.04; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.1; }
.eyebrow {
  font-family: var(--sans); font-size: 12px; font-weight: 600;
  letter-spacing: 3px; text-transform: uppercase; color: var(--gold);
}
.lede { color: var(--muted); font-size: 1.1rem; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.center { text-align: center; }
.mt-s { margin-top: 14px; } .mt-m { margin-top: 28px; } .mt-l { margin-top: 56px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sans); font-size: 13px; font-weight: 600;
  letter-spacing: 1.5px; text-transform: uppercase;
  padding: 16px 30px; border-radius: 2px; cursor: pointer;
  transition: all .35s cubic-bezier(.2,.7,.3,1); border: 1px solid transparent;
}
.btn-gold { background: var(--black); color: var(--ivory); }
.btn-gold:hover { background: var(--gold); color: var(--black); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--graphite); }
.btn-outline:hover { background: var(--black); color: var(--ivory); }
.btn-light { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.4); backdrop-filter: blur(6px); }
.btn-light:hover { background: #fff; color: var(--black); }

/* ---- Nav ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 28px; transition: all .4s ease;
}
.nav.scrolled { background: rgba(251,249,244,.92); backdrop-filter: blur(14px); border-bottom: 1px solid var(--gold-line); padding: 14px 28px; }
.nav-brand { font-family: var(--serif); font-size: 24px; letter-spacing: 3px; color: #fff; }
.nav.scrolled .nav-brand, .nav.solid .nav-brand { color: var(--black); }
.nav-links { display: flex; gap: 34px; align-items: center; }
.nav-links a { font-size: 13px; letter-spacing: 1.4px; text-transform: uppercase; color: rgba(255,255,255,.85); transition: color .3s; }
.nav.scrolled .nav-links a, .nav.solid .nav-links a { color: var(--graphite); }
.nav-links a:hover { color: var(--gold); }
.nav-cta { font-size: 12px !important; border: 1px solid currentColor; padding: 9px 18px; border-radius: 2px; }
.nav-burger { display: none; background: none; border: 0; cursor: pointer; }

/* ---- Hero ---- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; color: #fff; }
.hero-bg { position: absolute; inset: 0; z-index: -2; background:
  radial-gradient(70% 60% at 50% 30%, #2b2b30, #0b0b0c 80%); }
.hero-bg::after { content: ""; position: absolute; inset: 0;
  background:
   radial-gradient(40rem 40rem at 75% 20%, rgba(201,168,106,.22), transparent 60%),
   radial-gradient(36rem 36rem at 20% 80%, rgba(201,168,106,.10), transparent 60%); }
.hero-inner { position: relative; z-index: 2; text-align: center; padding: 0 24px; max-width: 900px; }
.hero h1 { color: #fff; }
.hero .gold-text { color: var(--gold-soft); font-style: italic; }
.hero-sub { color: rgba(255,255,255,.78); font-size: 1.15rem; max-width: 540px; margin: 22px auto 0; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 38px; }
.hero-scroll { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.5); font-size: 11px; letter-spacing: 2px; text-transform: uppercase; }

/* sparkle gem */
.gem { width: 120px; height: 120px; margin: 0 auto 30px; position: relative; }
.gem-core {
  width: 100%; height: 100%; border-radius: 50%;
  background: conic-gradient(from 0deg, #fff, var(--gold-soft), #fff, var(--silver), #fff);
  filter: blur(2px); animation: spin 9s linear infinite; opacity: .85;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Sections ---- */
.section { padding: 110px 0; }
.section-head { max-width: 620px; margin: 0 auto 60px; text-align: center; }
.divider { width: 46px; height: 1px; background: var(--gold); margin: 18px auto; }

/* ---- Product grid ---- */
.grid { display: grid; gap: 28px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card-product { background: var(--card); border: 1px solid var(--gold-line); border-radius: 3px; overflow: hidden; transition: all .45s ease; }
.card-product:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -30px rgba(0,0,0,.25); }
.card-product .ph { aspect-ratio: 1; background: linear-gradient(135deg, var(--beige), #fff); display: grid; place-items: center; color: var(--gold); }
.card-product .body { padding: 22px; text-align: center; }
.card-product h3 { font-size: 1.5rem; }
.card-product .price { color: var(--gold); font-weight: 600; letter-spacing: 1px; margin-top: 6px; }

/* ---- Feature split ---- */
.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; }
.split .visual { aspect-ratio: 4/5; border-radius: 3px; background: linear-gradient(135deg, var(--graphite), var(--black)); display: grid; place-items: center; color: var(--gold-soft); }
.split.dark { background: var(--black); color: #fff; }

/* ---- Trust row ---- */
.trust { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; border-top: 1px solid var(--gold-line); border-bottom: 1px solid var(--gold-line); padding: 40px 0; }
.trust .item { text-align: center; }
.trust .item .ic { color: var(--gold); }
.trust .item h4 { font-family: var(--serif); font-size: 1.3rem; margin-top: 8px; }
.trust .item p { font-size: 13px; color: var(--muted); }

/* ---- Testimonials ---- */
.quote { max-width: 760px; margin: 0 auto; text-align: center; }
.quote blockquote { font-family: var(--serif); font-size: clamp(1.6rem,3vw,2.4rem); line-height: 1.35; font-style: italic; }
.quote cite { display: block; margin-top: 22px; font-style: normal; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); }

/* ---- CTA band ---- */
.cta-band { background: var(--black); color: #fff; text-align: center; padding: 100px 0; }
.cta-band h2 { color: #fff; }

/* ---- Footer ---- */
.footer { background: #0b0b0c; color: rgba(255,255,255,.7); padding: 70px 0 30px; }
.footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer h5 { color: #fff; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }
.footer a { display: block; padding: 5px 0; font-size: 14px; transition: color .3s; }
.footer a:hover { color: var(--gold-soft); }
.footer .bottom { margin-top: 50px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; }
.footer .brand-serif { font-family: var(--serif); font-size: 26px; letter-spacing: 4px; color: #fff; }

/* ---- WhatsApp ---- */
.wa { position: fixed; bottom: 26px; right: 26px; z-index: 90; width: 56px; height: 56px; border-radius: 50%; background: var(--black); color: var(--gold-soft); display: grid; place-items: center; border: 1px solid var(--gold); box-shadow: 0 10px 30px -8px rgba(0,0,0,.5); transition: all .3s; }
.wa:hover { background: var(--gold); color: var(--black); transform: scale(1.06); }

/* ---- Reveal animation ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .trust { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer .cols { grid-template-columns: 1fr 1fr; }
  .section { padding: 80px 0; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-burger { display: block; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .footer .cols { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: stretch; }
}
@media (prefers-reduced-motion: reduce) { .gem-core { animation: none; } .reveal { transition: none; opacity: 1; transform: none; } }