/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #0a1628;
  --navy-mid: #0f1f3d;
  --navy-light: #162947;
  --gold: #c9a84c;
  --gold-light: #e0bc6a;
  --white: #ffffff;
  --grey: #a0aec0;
  --grey-light: #e2e8f0;
  --green: #48bb78;
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--navy);
  color: var(--white);
  line-height: 1.65;
  font-size: 16px;
}

a { color: var(--gold); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--gold-light); }

img { max-width: 100%; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.2);
  padding: 0 24px;
}

.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav-links a:hover { color: var(--gold); }

.nav-cta {
  background: var(--gold);
  color: var(--navy) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 700 !important;
}

.nav-cta:hover { background: var(--gold-light); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gold);
  color: var(--navy);
}
.btn-primary:hover { background: var(--gold-light); color: var(--navy); transform: translateY(-2px); }

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-secondary:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }

.btn-full { width: 100%; text-align: center; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  max-width: 1140px;
  margin: 0 auto;
  gap: 60px;
}

.hero-content { flex: 1; max-width: 600px; }

.hero-badge {
  display: inline-block;
  background: rgba(201, 168, 76, 0.15);
  border: 1px solid rgba(201, 168, 76, 0.4);
  color: var(--gold);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero-headline {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--white);
}

.hero-subhead {
  font-size: 1.15rem;
  color: var(--grey);
  margin-bottom: 40px;
  max-width: 520px;
}

.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* Capsule diagram */
.hero-graphic {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.capsule-diagram {
  position: relative;
  width: 260px;
  height: 260px;
}

.capsule-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 8px;
}

.r1 {
  width: 260px; height: 260px;
  top: 0; left: 0;
  border-color: rgba(201,168,76,0.3);
}
.r1 span { color: rgba(201,168,76,0.5); font-size: 0.7rem; font-weight: 700; }

.r2 {
  width: 185px; height: 185px;
  top: 37.5px; left: 37.5px;
  border-color: rgba(201,168,76,0.55);
}
.r2 span { color: rgba(201,168,76,0.7); font-size: 0.7rem; font-weight: 700; }

.r3 {
  width: 115px; height: 115px;
  top: 72.5px; left: 72.5px;
  border-color: rgba(201,168,76,0.9);
}
.r3 span { color: var(--gold); font-size: 0.7rem; font-weight: 700; }

.capsule-core {
  position: absolute;
  width: 70px; height: 70px;
  top: 95px; left: 95px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
}

/* ===== SECTIONS ===== */
.section { padding: 96px 0; }
.section-alt { background: var(--navy-mid); }

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--white);
}

.section-intro {
  font-size: 1.05rem;
  color: var(--grey);
}

/* ===== CARDS GRID ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.card {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: rgba(201,168,76,0.4);
  transform: translateY(-4px);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--white);
}

.card p { color: var(--grey); font-size: 0.95rem; }

/* ===== TWO COLUMN ===== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.two-col-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 16px;
  margin-top: 12px;
}

.two-col-text > p {
  color: var(--grey);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* Feature list */
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 24px; }

.feature-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  background: rgba(201,168,76,0.15);
  color: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  margin-top: 2px;
}

.feature-list strong { display: block; margin-bottom: 4px; font-size: 0.95rem; }
.feature-list p { color: var(--grey); font-size: 0.9rem; margin: 0; }

/* Ownership diagram */
.two-col-visual { position: relative; }

.ownership-diagram {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.ownership-tier {
  padding: 20px 28px;
  border-radius: var(--radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.owner { background: rgba(201,168,76,0.25); border: 1px solid rgba(201,168,76,0.6); }
.steward { background: rgba(201,168,76,0.12); border: 1px solid rgba(201,168,76,0.35); }
.custodian { background: rgba(201,168,76,0.06); border: 1px solid rgba(201,168,76,0.2); }

.tier-label { font-weight: 700; font-size: 1rem; }
.tier-desc { color: var(--grey); font-size: 0.85rem; }

.proof-badge {
  margin-top: 16px;
  background: var(--navy-light);
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  padding: 12px 20px;
  text-align: center;
  font-weight: 700;
  color: var(--gold);
  font-size: 0.9rem;
}

.proof-badge small { display: block; color: var(--grey); font-weight: 400; font-size: 0.78rem; margin-top: 2px; }

/* ===== PATENT BADGE ===== */
.patent-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.4);
  color: var(--gold);
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 auto 48px;
  width: fit-content;
}

/* ===== TIER STACK ===== */
.tier-stack { display: flex; flex-direction: column; gap: 16px; }

.tier-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.07);
  border-left: 4px solid;
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s;
}

.t1 { border-left-color: rgba(201,168,76,0.4); }
.t2 { border-left-color: rgba(201,168,76,0.6); }
.t3 { border-left-color: var(--gold); }
.t4 { border-left-color: rgba(255,255,255,0.2); }

.tier-number {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: rgba(201,168,76,0.15);
  color: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.tier-content h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.tier-content p { color: var(--grey); font-size: 0.9rem; margin-bottom: 12px; }

.tier-status {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
}

.tier-status.active { background: rgba(72,187,120,0.15); color: var(--green); }
.tier-status.roadmap { background: rgba(255,255,255,0.06); color: var(--grey); }

/* ===== PRODUCTS GRID ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--navy-mid);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: border-color 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.product-card:hover { border-color: rgba(201,168,76,0.5); transform: translateY(-4px); }

.product-card.featured {
  border-color: rgba(201,168,76,0.4);
  background: linear-gradient(135deg, var(--navy-light), var(--navy-mid));
}

.product-icon { font-size: 2.2rem; margin-bottom: 16px; }
.product-card h3 { font-size: 1.25rem; font-weight: 800; margin-bottom: 8px; }

.product-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(201,168,76,0.1);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.product-card p { color: var(--grey); font-size: 0.9rem; flex: 1; margin-bottom: 24px; }

.product-link {
  color: var(--gold);
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.product-link:hover { gap: 8px; }

/* ===== ABOUT FACTS ===== */
.about-facts {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.fact { display: flex; flex-direction: column; }
.fact-num { font-size: 2.4rem; font-weight: 800; color: var(--gold); line-height: 1; }
.fact-label { font-size: 0.8rem; color: var(--grey); margin-top: 4px; }

/* Node map */
.node-map {
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 32px;
}

.node-map h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
}

.node-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 20px; font-size: 0.9rem; line-height: 1.5; }
.node-item small { color: var(--grey); font-size: 0.78rem; }

.node-dot {
  flex-shrink: 0;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-top: 5px;
}

.node-dot.eu { background: #48bb78; }
.node-dot.apac { background: #4299e1; }
.node-dot.uk { background: var(--gold); }

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--grey);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--navy-light);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--white);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
}

.form-group textarea { resize: vertical; }

.contact-info { display: flex; flex-direction: column; gap: 28px; padding-top: 8px; }

.contact-item strong {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 6px;
}

.contact-item a, .contact-item p { color: var(--white); font-size: 0.95rem; }
.contact-item a:hover { color: var(--gold); }

/* ===== FOOTER ===== */
.footer {
  background: var(--navy-mid);
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 48px 0 28px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 40px;
}

.footer-logo { font-size: 1.4rem; font-weight: 800; color: var(--gold); letter-spacing: 0.15em; }
.footer-tagline { display: block; font-size: 0.8rem; color: var(--grey); margin-top: 4px; }
.footer-brand { display: flex; flex-direction: column; }

.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { color: var(--grey); font-size: 0.85rem; }
.footer-links a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 24px;
}

.footer-bottom p { color: var(--grey); font-size: 0.8rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero { flex-direction: column; text-align: center; min-height: auto; padding: 100px 24px 60px; }
  .hero-content { max-width: 100%; }
  .hero-subhead { max-width: 100%; }
  .hero-ctas { justify-content: center; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; }
  .capsule-diagram { width: 220px; height: 220px; }
  .r1 { width: 220px; height: 220px; }
  .r2 { width: 155px; height: 155px; top: 32.5px; left: 32.5px; }
  .r3 { width: 95px; height: 95px; top: 62.5px; left: 62.5px; }
  .capsule-core { width: 60px; height: 60px; top: 80px; left: 80px; }
}

@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--navy-mid); padding: 20px 24px; gap: 16px; border-bottom: 1px solid rgba(255,255,255,0.1); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .section { padding: 64px 0; }
  .tier-item { flex-direction: column; gap: 16px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { gap: 16px; }
  .about-facts { gap: 20px; }
}