/* ═══════════════════════════════════════════════════════════
 OAIQO — INSTITUTIONAL DESIGN SYSTEM
 Copyright © 2025 OAIQO AG. All Rights Reserved.
 ═══════════════════════════════════════════════════════════ */

:root {
 --bg-primary: #0a0b0f;
 --bg-secondary: #111318;
 --surface: #161920;
 --border: rgba(255, 255, 255, 0.08);
 --text-primary: #ffffff;
 --text-secondary: rgba(255, 255, 255, 0.7);
 --text-muted: rgba(255, 255, 255, 0.4);
 --accent: #c9a227; /* gold, not green */
 --accent-glow: rgba(201, 162, 39, 0.3);
 --gradient: linear-gradient(135deg, #c9a227 0%, #e0c068 100%);
 --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
 --radius: 12px;
 --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
 margin: 0;
 padding: 0;
 box-sizing: border-box;
}

body {
 background: var(--bg-primary);
 color: var(--text-primary);
 font-family: var(--font);
 line-height: 1.6;
 -webkit-font-smoothing: antialiased;
 overflow-x: hidden;
}

/* ── Navigation ── */
.nav {
 position: fixed;
 top: 0;
 width: 100%;
 z-index: 100;
 backdrop-filter: blur(20px);
 background: rgba(10, 11, 15, 0.8);
 border-bottom: 1px solid var(--border);
}

.nav-inner {
 max-width: 1280px;
 margin: 0 auto;
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: 0 24px;
 height: 64px;
}

.logo {
 font-weight: 700;
 font-size: 1.4rem;
 letter-spacing: 0.3rem;
 color: var(--accent);
 text-decoration: none;
 display: inline-flex;
 align-items: center;
}

.brand-svg {
 display: block;
 height: auto;
 filter: drop-shadow(0 6px 20px rgba(201, 162, 39, 0.18));
}

.brand-svg-nav {
 width: min(220px, 34vw);
}

.brand-svg-footer {
 width: min(220px, 52vw);
 margin-bottom: 10px;
}

.nav-links {
 display: flex;
 gap: 32px;
 align-items: center;
}

.nav-link {
 color: var(--text-secondary);
 text-decoration: none;
 font-size: 0.9rem;
 font-weight: 500;
 transition: color var(--transition);
}

.nav-link:hover {
 color: white;
}

.nav-cta {
 color: var(--accent);
 border: 1px solid var(--accent);
 padding: 8px 20px;
 border-radius: 6px;
}

.nav-cta:hover {
 background: rgba(201, 162, 39, 0.1);
}

/* ── Hero ── */
.hero {
 min-height: 100vh;
 display: flex;
 align-items: center;
 justify-content: space-between;
 max-width: 1280px;
 margin: 0 auto;
 padding: 120px 24px 80px;
 gap: 60px;
}

.hero-content {
 flex: 1;
 max-width: 650px;
}

.hero-badge {
 display: inline-block;
 padding: 6px 16px;
 border: 1px solid rgba(201, 162, 39, 0.3);
 border-radius: 100px;
 font-size: 0.75rem;
 letter-spacing: 0.2rem;
 text-transform: uppercase;
 color: var(--accent);
 margin-bottom: 32px;
}

.hero-title {
 font-size: 3.5rem;
 font-weight: 600;
 line-height: 1.15;
 margin-bottom: 24px;
 letter-spacing: -0.02em;
}

.gradient-text {
 background: var(--gradient);
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
}

.hero-subtitle {
 font-size: 1.1rem;
 color: var(--text-secondary);
 max-width: 550px;
 margin-bottom: 40px;
}

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

.btn-primary {
  background: var(--accent);
  color: #000;
  border: 1px solid var(--accent);
  padding: 14px 32px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: 0;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: all 0.3s ease;
  box-shadow: inset 0 0 10px rgba(255,255,255,0.2);
}

.btn-primary:hover {
  background: #fff;
  border-color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(10, 11, 15, 0.6);
  color: var(--accent);
  border: 1px solid rgba(212, 175, 55, 0.3);
  padding: 14px 32px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border-radius: 0;
  text-transform: uppercase;
  font-size: 0.85rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(212, 175, 55, 0.1);
  box-shadow: 0 0 15px rgba(212, 175, 55, 0.15);
}

.hero-visual {
 flex: 1;
 min-height: 400px;
 position: relative;
}

.abstract-grid {
 width: 100%;
 height: 100%;
 background-image:
 linear-gradient(rgba(201,162,39,0.1) 1px, transparent 1px),
 linear-gradient(90deg, rgba(201,162,39,0.1) 1px, transparent 1px);
 background-size: 60px 60px;
 mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* ── Trust Bar ── */
.trust-bar {
 display: flex;
 justify-content: center;
 gap: 80px;
 padding: 60px 24px;
 border-top: 1px solid var(--border);
 border-bottom: 1px solid var(--border);
 flex-wrap: wrap;
}

.trust-item {
 text-align: center;
}

.trust-number {
 display: block;
 font-size: 2rem;
 font-weight: 700;
 color: var(--accent);
 margin-bottom: 8px;
}

.trust-label {
 font-size: 0.8rem;
 color: var(--text-muted);
 text-transform: uppercase;
 letter-spacing: 0.1rem;
}

/* ── Features ── */
.features {
 max-width: 1280px;
 margin: 0 auto;
 padding: 120px 24px;
}

.section-title {
 font-size: 2.2rem;
 font-weight: 600;
 margin-bottom: 64px;
 text-align: center;
}

.feature-grid {
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
 gap: 32px;
}

.feature-card {
 background: var(--surface);
 border: 1px solid var(--border);
 border-radius: var(--radius);
 padding: 32px;
 transition: border-color var(--transition);
}

.feature-card:hover {
 border-color: var(--accent);
}

.feature-icon {
 font-size: 1.5rem;
 color: var(--accent);
 margin-bottom: 16px;
}

.feature-card h3 {
 font-weight: 600;
 margin-bottom: 12px;
}

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

/* ── Split Section ── */
.section-split {
 max-width: 1280px;
 margin: 0 auto;
 padding: 100px 24px;
 display: grid;
 grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
 gap: 48px;
 align-items: center;
}

.section-split-content {
 max-width: 640px;
}

.section-tag {
 display: inline-block;
 padding: 4px 12px;
 border-radius: 999px;
 border: 1px solid rgba(201, 162, 39, 0.35);
 font-size: 0.7rem;
 letter-spacing: 0.18rem;
 text-transform: uppercase;
 color: var(--accent);
 margin-bottom: 16px;
}

.section-heading {
 font-size: 2.1rem;
 font-weight: 600;
 margin-bottom: 18px;
}

.section-muted {
 color: var(--text-secondary);
 font-size: 0.98rem;
 margin-bottom: 18px;
}

.section-list {
 list-style: disc;
 padding-left: 20px;
 color: var(--text-secondary);
 font-size: 0.95rem;
}

.section-list li {
 margin-bottom: 6px;
}

.section-split-visual {
 position: relative;
 min-height: 260px;
 display: flex;
 align-items: center;
 justify-content: center;
}

.section-visual-placeholder {
 width: 100%;
 max-width: 360px;
 aspect-ratio: 1 / 1;
 border-radius: 50%;
 border: 1px solid rgba(201, 162, 39, 0.4);
 box-shadow: 0 0 40px rgba(201, 162, 39, 0.18);
 position: relative;
 display: flex;
 align-items: center;
 justify-content: center;
}

.section-visual-orbit {
 position: absolute;
 inset: 18%;
 border-radius: 50%;
 border: 1px dashed rgba(201, 162, 39, 0.4);
}

.section-visual-node {
 position: absolute;
 padding: 6px 10px;
 border-radius: 999px;
 background: rgba(10, 11, 15, 0.9);
 border: 1px solid rgba(201, 162, 39, 0.4);
 font-size: 0.8rem;
 color: var(--text-secondary);
}

.section-visual-node-main {
 position: relative;
 padding: 10px 16px;
 font-weight: 600;
 color: black;
 background: var(--gradient);
 box-shadow: 0 0 18px rgba(201, 162, 39, 0.5);
}

.section-visual-node-sub:nth-of-type(1) { top: 12%; left: 50%; transform: translateX(-50%); }
.section-visual-node-sub:nth-of-type(2) { right: 4%; top: 50%; transform: translateY(-50%); }
.section-visual-node-sub:nth-of-type(3) { bottom: 12%; left: 50%; transform: translateX(-50%); }
.section-visual-node-sub:nth-of-type(4) { left: 4%; top: 50%; transform: translateY(-50%); }

@media (max-width: 900px) {
 .section-split {
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
 }
 .section-split-visual {
  order: -1;
 }
}

/* ── CTA ── */
.cta {
 text-align: center;
 padding: 120px 24px;
 background: var(--bg-secondary);
 border-top: 1px solid var(--border);
 border-bottom: 1px solid var(--border);
}

.cta h2 {
 font-size: 2.5rem;
 font-weight: 600;
 margin-bottom: 16px;
}

.cta p {
 color: var(--text-secondary);
 margin-bottom: 40px;
 max-width: 500px;
 margin-left: auto;
 margin-right: auto;
}

/* ── Footer ── */
.footer {
 padding: 60px 24px;
 border-top: 1px solid var(--border);
}

.footer-inner {
 max-width: 1280px;
 margin: 0 auto;
 display: flex;
 justify-content: space-between;
 align-items: center;
 flex-wrap: wrap;
 gap: 20px;
}

.footer-brand {
 display: flex;
 flex-direction: column;
}

.footer-tagline {
 font-size: 0.8rem;
 color: var(--text-muted);
}

.footer-links {
 display: flex;
 gap: 32px;
}

.footer-links a {
 color: var(--text-secondary);
 text-decoration: none;
 font-size: 0.85rem;
 transition: color var(--transition);
}

.footer-links a:hover {
 color: white;
}

.footer-copy {
 font-size: 0.75rem;
 color: var(--text-muted);
 width: 100%;
 text-align: center;
 margin-top: 20px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
 .hero {
 flex-direction: column;
 padding-top: 100px;
 }
 .hero-title {
 font-size: 2.5rem;
 }
 .trust-bar {
 gap: 30px;
 }
 .hero-actions,
 .footer-links {
 flex-direction: column;
 align-items: stretch;
 }
 .nav-links {
 gap: 16px;
 }
}