/* ==========================================================================
   PT. PERMATA INDONESIA — Design tokens
   Palette   : Onyx #0F1210, Ivory #F7F3EC, Antique Gold #B8925A,
               Ruby #6E1F2A, Sand #E8DFD0, Charcoal #201D1A
   Type      : Display "Playfair Display" / Body "Jost" / Utility "Space Mono"
   Signature : certificate corner-brackets (gemstone authenticity motif)
   ========================================================================== */

:root {
  --onyx: #0f1210;
  --onyx-soft: #171b18;
  --ivory: #f7f3ec;
  --sand: #e8dfd0;
  --gold: #b8925a;
  --gold-light: #dcbb85;
  --ruby: #6e1f2a;
  --ruby-light: #8a2e3b;
  --charcoal: #201d1a;
  --line: rgba(184, 146, 90, 0.28);

  --font-display: "Playfair Display", "Times New Roman", serif;
  --font-body: "Jost", "Segoe UI", sans-serif;
  --font-mono: "Space Mono", "Courier New", monospace;

  --maxw: 1180px;
  --radius: 2px;
  --transition: 220ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ivory);
  color: var(--charcoal);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: 0.2px;
}

p { margin: 0 0 1em; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--gold);
}

.section { padding: 96px 0; }
.section-dark { background: var(--onyx); color: var(--sand); }
.section-sand { background: var(--sand); }
.section-tight { padding: 64px 0; }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(28px, 4vw, 42px); }
.section-dark .eyebrow { color: var(--gold-light); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  background: transparent;
  color: var(--charcoal);
}
.btn-solid { background: var(--gold); color: var(--onyx); border-color: var(--gold); }
.btn-solid:hover { background: var(--gold-light); border-color: var(--gold-light); }
.btn-outline:hover { background: var(--gold); color: var(--onyx); }
.section-dark .btn-outline { color: var(--sand); border-color: var(--gold-light); }
.section-dark .btn-outline:hover { background: var(--gold-light); color: var(--onyx); }
.btn-ruby { background: var(--ruby); border-color: var(--ruby); color: var(--ivory); }
.btn-ruby:hover { background: var(--ruby-light); border-color: var(--ruby-light); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Signature: certificate corner-bracket frame ---------- */
.cert-frame {
  position: relative;
  padding: 34px 28px;
  border: 1px solid var(--line);
}
.cert-frame::before,
.cert-frame::after,
.cert-frame > .c2::before,
.cert-frame > .c2::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--gold);
}
.cert-frame::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.cert-frame::after { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.cert-frame .c2::before { position: absolute; bottom: -1px; left: -1px; border-right: none; border-top: none; width:18px; height:18px; border-color: var(--gold);}
.cert-frame .c2::after { position: absolute; bottom: -1px; right: -1px; border-left: none; border-top: none; width:18px; height:18px; border-color: var(--gold);}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 18, 16, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ivory);
}
.brand-mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.5px;
  line-height: 1.1;
}
.brand-name small {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--gold-light);
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--sand);
  font-size: 14.5px;
  letter-spacing: 0.3px;
  position: relative;
  padding-bottom: 4px;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--gold-light); }
.nav-links a.active { color: var(--gold-light); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--gold-light);
}
.nav-cta { display: flex; gap: 12px; align-items: center; }
.nav-cta .btn { padding: 10px 20px; font-size: 12px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--gold-light); }

/* ---------- Hero ---------- */
.hero {
  background: var(--onyx);
  color: var(--sand);
  position: relative;
  overflow: hidden;
  padding: 88px 0 100px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 20%, rgba(184,146,90,0.16), transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(110,31,42,0.18), transparent 45%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(36px, 5.2vw, 60px);
  color: var(--ivory);
}
.hero h1 em {
  font-style: italic;
  color: var(--gold-light);
}
.hero-sub {
  font-size: 17.5px;
  color: rgba(247,243,236,0.78);
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.hero-cert {
  margin-top: 44px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-cert .stat {
  font-family: var(--font-mono);
}
.hero-cert .stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--gold-light);
}
.hero-cert .stat span {
  font-size: 11px;
  letter-spacing: 1.5px;
  color: rgba(247,243,236,0.55);
  text-transform: uppercase;
}
.hero-visual { position: relative; }
.hero-visual .cert-frame { background: rgba(247,243,236,0.03); }

/* ---------- Cards / grids ---------- */
.grid {
  display: grid;
  gap: 28px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--ivory);
  border: 1px solid var(--line);
  padding: 30px;
  transition: var(--transition);
}
.card:hover { border-color: var(--gold); transform: translateY(-3px); }
.card .icon { width: 40px; height: 40px; margin-bottom: 18px; color: var(--gold); }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: #55504a; margin-bottom: 0; }

.product-card {
  border: 1px solid var(--line);
  background: var(--ivory);
  overflow: hidden;
  transition: var(--transition);
}
.product-card:hover { border-color: var(--gold); }
.product-thumb {
  aspect-ratio: 4/3.4;
  background: linear-gradient(145deg, var(--onyx-soft), var(--onyx));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.product-thumb svg { width: 46%; }
.product-tag {
  position: absolute;
  top: 12px; left: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  padding: 5px 10px;
  border: 1px solid var(--gold);
  color: var(--gold-light);
  text-transform: uppercase;
}
.product-body { padding: 22px 22px 24px; }
.product-body h3 { font-size: 17px; margin-bottom: 6px; }
.product-body .cat { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1px; color: var(--gold); text-transform: uppercase; margin-bottom: 10px; display:block; }
.product-body p { font-size: 13.8px; color: #5a554e; }

/* ---------- Values / process ---------- */
.value-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.value-row:last-child { border-bottom: 1px solid var(--line); }
.value-row .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  padding-top: 4px;
}
.value-row h3 { font-size: 19px; margin-bottom: 6px; }
.value-row p { font-size: 14.5px; color: #55504a; margin: 0; }
.section-dark .value-row { border-color: var(--line); }
.section-dark .value-row p { color: rgba(247,243,236,0.7); }

/* ---------- Testimonial ---------- */
.testi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testi blockquote {
  margin: 0;
  padding: 26px;
  border: 1px solid var(--line);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 17px;
  line-height: 1.5;
}
.testi cite {
  display: block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--gold);
  text-transform: uppercase;
}

/* ---------- Forms ---------- */
.form-wrap {
  max-width: 480px;
  margin: 0 auto;
}
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: rgba(247,243,236,0.02);
  color: inherit;
  font-family: var(--font-body);
  font-size: 15px;
  border-radius: var(--radius);
}
.section-dark .field input,
.section-dark .field select,
.section-dark .field textarea {
  background: rgba(247,243,236,0.04);
  color: var(--ivory);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: #55504a;
}
.section-dark .field-check { color: rgba(247,243,236,0.72); }
.field-check input { width: auto; margin-top: 3px; }
.form-note {
  text-align: center;
  font-size: 13.5px;
  margin-top: 20px;
  color: #55504a;
}
.section-dark .form-note { color: rgba(247,243,236,0.7); }
.form-note a { color: var(--gold); border-bottom: 1px solid var(--gold); }
.form-msg {
  display: none;
  padding: 14px 16px;
  border: 1px solid var(--gold);
  font-size: 13.5px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
}
.form-msg.show { display: block; }

/* ---------- Contact info blocks ---------- */
.info-list { list-style: none; margin: 0; padding: 0; }
.info-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
}
.info-list li:last-child { border-bottom: 1px solid var(--line); }
.info-list b {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--gold);
  text-transform: uppercase;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--onyx);
  color: rgba(247,243,236,0.65);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}
.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 18px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; font-size: 14px; }
.footer-grid a:hover { color: var(--gold-light); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 22px;
  font-size: 12.5px;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-brand { display: flex; gap: 12px; align-items: center; color: var(--ivory); margin-bottom: 14px; }
.footer-brand svg { width: 30px; height: 30px; }

/* ---------- Page hero (secondary pages) ---------- */
.page-hero {
  background: var(--onyx);
  color: var(--sand);
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { color: var(--ivory); font-size: clamp(30px, 4.4vw, 46px); }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  color: rgba(247,243,236,0.55);
  margin-bottom: 14px;
}
.breadcrumb a { color: var(--gold-light); }

/* ---------- Filter bar ---------- */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-bar button {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 9px 16px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--charcoal);
  cursor: pointer;
  transition: var(--transition);
}
.filter-bar button:hover,
.filter-bar button.active {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--onyx);
}

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.text-gold { color: var(--gold); }
.divider {
  width: 100%;
  height: 1px;
  background: var(--line);
  margin: 0;
}
.stack-center { text-align: center; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 340px; margin: 0 auto; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .testi { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links, .nav-cta .btn.hide-mobile { display: none; }
  .nav-toggle { display: flex; }
  .site-header.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--onyx);
    padding: 20px 28px 26px;
    border-bottom: 1px solid var(--line);
    gap: 18px;
  }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .value-row { grid-template-columns: 1fr; gap: 8px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- Focus visibility ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}