:root {
  --bg: #060910; --surface: #0d1117; --surface2: #111820; --border: #1e2d3d;
  --accent: #00f5c4; --accent2: #f5a623; --accent3: #7c6af7;
  --text: #e8edf2; --muted: #6b7e92; --danger: #ff4d6d;
  --mono: 'Space Mono', monospace; --display: 'Bebas Neue', sans-serif; --body: 'DM Sans', sans-serif;
  --ad-col: 160px; --nav-h: 64px; --chrome-h: 64px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--body); min-height: 100vh; overflow-x: hidden; -webkit-text-size-adjust: 100%; }
body::before { content: ''; position: fixed; inset: 0; background-image: linear-gradient(rgba(0,245,196,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(0,245,196,0.03) 1px, transparent 1px); background-size: 40px 40px; pointer-events: none; z-index: 0; }

nav { position: fixed; top: 0; left: 0; right: 0; z-index: 200; background: rgba(6,9,16,0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); padding: 0 1rem 0 1.5rem; height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.nav-logo { font-family: var(--display); font-size: 1.5rem; letter-spacing: 2px; color: var(--accent); text-decoration: none; white-space: nowrap; flex-shrink: 0; }
.nav-logo span { color: var(--text); }
.nav-links { display: flex; gap: 0.15rem; list-style: none; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); text-decoration: none; padding: 0.4rem 0.65rem; border-radius: 4px; border: 1px solid transparent; transition: all 0.2s; display: block; white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); border-color: var(--accent); background: rgba(0,245,196,0.06); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; flex-shrink: 0; }
.hamburger span { width: 22px; height: 2px; background: var(--accent); transition: all 0.3s; display: block; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav-overlay { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0; background: rgba(6,9,16,0.98); backdrop-filter: blur(16px); z-index: 190; padding: 1.5rem; overflow-y: auto; flex-direction: column; gap: 0.25rem; }
.mobile-nav-overlay.open { display: flex; }
.mobile-nav-overlay a { font-family: var(--mono); font-size: 0.85rem; color: var(--muted); text-decoration: none; padding: 0.9rem 1rem; border: 1px solid transparent; border-radius: 4px; transition: all 0.2s; display: flex; align-items: center; gap: 0.75rem; letter-spacing: 1px; }
.mobile-nav-overlay a:hover, .mobile-nav-overlay a.active { color: var(--accent); border-color: var(--border); background: rgba(0,245,196,0.04); }

.site-wrapper { display: flex; align-items: flex-start; min-height: 100vh; position: relative; z-index: 1; }
.ad-col { width: var(--ad-col); flex-shrink: 0; position: sticky; top: var(--chrome-h); min-height: calc(100vh - var(--chrome-h)); }
.ad-mobile-banner { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 198; height: 60px; }
.main-content { flex: 1; min-width: 0; padding-top: var(--chrome-h); }

.hero { padding: 4rem 2rem 3rem; max-width: 1000px; margin: 0 auto; }
.hero-tag { font-family: var(--mono); font-size: 0.68rem; color: var(--accent); letter-spacing: 3px; text-transform: uppercase; margin-bottom: 1.25rem; display: flex; align-items: center; gap: 0.75rem; }
.hero-tag::before { content: ''; width: 28px; height: 1px; background: var(--accent); flex-shrink: 0; }
h1 { font-family: var(--display); font-size: clamp(2.8rem, 7vw, 6.5rem); line-height: 0.95; letter-spacing: 2px; margin-bottom: 1.25rem; color: var(--text); }
h1 .highlight { color: var(--accent); }
.hero-sub { font-size: 1rem; color: var(--muted); max-width: 520px; line-height: 1.7; margin-bottom: 2rem; }
.hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.btn-primary { background: var(--accent); color: #060910; border: none; padding: 0.8rem 1.75rem; font-family: var(--mono); font-size: 0.78rem; font-weight: 700; letter-spacing: 1px; cursor: pointer; transition: all 0.2s; text-decoration: none; display: inline-block; clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px)); -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
.btn-primary:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,245,196,0.3); }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); padding: 0.8rem 1.75rem; font-family: var(--mono); font-size: 0.78rem; cursor: pointer; transition: all 0.2s; text-decoration: none; display: inline-block; -webkit-tap-highlight-color: transparent; }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.section { max-width: 1000px; margin: 0 auto; padding: 3rem 1.5rem; }
.section-header { margin-bottom: 2.5rem; }
.section-tag { font-family: var(--mono); font-size: 0.65rem; letter-spacing: 3px; color: var(--accent); text-transform: uppercase; margin-bottom: 0.6rem; }
h2 { font-family: var(--display); font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: 1px; line-height: 1; margin-bottom: 0.65rem; }
h3 { font-family: var(--display); font-size: 1.5rem; letter-spacing: 1px; margin-bottom: 0.65rem; }
.section-desc { color: var(--muted); max-width: 540px; line-height: 1.7; font-size: 0.95rem; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.card { background: var(--surface); padding: 1.75rem; transition: background 0.2s; position: relative; overflow: hidden; text-decoration: none; display: block; }
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent3)); transform: scaleX(0); transform-origin: left; transition: transform 0.3s; }
.card:hover { background: var(--surface2); }
.card:hover::before { transform: scaleX(1); }
.card-icon { font-size: 1.75rem; margin-bottom: 0.75rem; }
.card-title { font-family: var(--mono); font-size: 0.82rem; font-weight: 700; color: var(--text); margin-bottom: 0.5rem; letter-spacing: 1px; text-transform: uppercase; }
.card-desc { font-size: 0.86rem; color: var(--muted); line-height: 1.6; }
.card-arrow { position: absolute; bottom: 1.25rem; right: 1.25rem; color: var(--accent); font-size: 1rem; opacity: 0; transition: opacity 0.2s, transform 0.2s; }
.card:hover .card-arrow { opacity: 1; transform: translate(3px, -3px); }

.page-hero { background: var(--surface); border-bottom: 1px solid var(--border); padding: 3rem 1.5rem 2.5rem; position: relative; overflow: hidden; }
.page-hero::after { content: attr(data-char); position: absolute; right: -1rem; top: -1rem; font-family: var(--display); font-size: 12rem; color: rgba(0,245,196,0.04); pointer-events: none; line-height: 1; }
.page-hero-inner { max-width: 1000px; margin: 0 auto; }
.breadcrumb { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.5rem; }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.content-block { background: var(--surface); border: 1px solid var(--border); padding: 1.75rem; margin-bottom: 1.25rem; }
.content-block h3 { color: var(--accent); font-size: 1.05rem; margin-bottom: 0.9rem; display: flex; align-items: center; gap: 0.6rem; }
.content-block p { color: var(--muted); line-height: 1.75; font-size: 0.9rem; margin-bottom: 0.7rem; }
.content-block p:last-child { margin-bottom: 0; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--border); margin-bottom: 1.5rem; }
.info-table { width: 100%; border-collapse: collapse; font-size: 0.86rem; min-width: 480px; }
.info-table th { font-family: var(--mono); font-size: 0.65rem; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); padding: 0.7rem 1rem; text-align: left; border-bottom: 1px solid var(--border); background: var(--surface); white-space: nowrap; }
.info-table td { padding: 0.8rem 1rem; border-bottom: 1px solid rgba(30,45,61,0.5); color: var(--text); }
.info-table tr:hover td { background: var(--surface2); }

.badge { display: inline-block; padding: 0.2rem 0.55rem; border-radius: 3px; font-family: var(--mono); font-size: 0.62rem; font-weight: 700; letter-spacing: 1px; white-space: nowrap; }
.badge-green { background: rgba(46,204,113,0.15); color: #2ecc71; }
.badge-yellow { background: rgba(245,166,35,0.15); color: var(--accent2); }
.badge-red { background: rgba(255,77,109,0.15); color: var(--danger); }
.badge-blue { background: rgba(124,106,247,0.15); color: var(--accent3); }

.callout { border-left: 3px solid var(--accent); background: rgba(0,245,196,0.05); padding: 1rem 1.25rem; margin: 1.25rem 0; font-size: 0.88rem; color: var(--text); line-height: 1.7; }
.callout.warning { border-color: var(--accent2); background: rgba(245,166,35,0.05); }
.callout.danger { border-color: var(--danger); background: rgba(255,77,109,0.05); }
.callout strong { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; display: block; margin-bottom: 0.4rem; color: var(--accent); }
.callout.warning strong { color: var(--accent2); }
.callout.danger strong { color: var(--danger); }

.timeline { position: relative; padding-left: 1.75rem; }
.timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 1px; background: linear-gradient(180deg, var(--accent), transparent); }
.timeline-item { position: relative; padding: 0 0 2rem 1.75rem; }
.timeline-item::before { content: ''; position: absolute; left: -5px; top: 5px; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); border: 2px solid var(--bg); box-shadow: 0 0 0 1px var(--accent); }
.timeline-year { font-family: var(--mono); font-size: 0.68rem; color: var(--accent); letter-spacing: 2px; margin-bottom: 0.25rem; }
.timeline-title { font-weight: 600; margin-bottom: 0.3rem; font-size: 0.92rem; }
.timeline-desc { color: var(--muted); font-size: 0.83rem; line-height: 1.6; }

.glossary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.glossary-item { background: var(--surface); padding: 1.25rem; transition: background 0.2s; }
.glossary-item:hover { background: var(--surface2); }
.glossary-term { font-family: var(--mono); font-size: 0.75rem; font-weight: 700; color: var(--accent); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 0.4rem; }
.glossary-def { font-size: 0.83rem; color: var(--muted); line-height: 1.6; }

.risk-bar { height: 7px; background: var(--border); border-radius: 4px; overflow: hidden; margin: 0.4rem 0 0.2rem; }
.risk-fill { height: 100%; border-radius: 4px; }
.risk-low { background: #2ecc71; width: 25%; }
.risk-med { background: var(--accent2); width: 60%; }
.risk-high { background: var(--danger); width: 90%; }
.risk-label { font-family: var(--mono); font-size: 0.62rem; color: var(--muted); display: flex; justify-content: space-between; }

.steps { display: flex; flex-direction: column; gap: 1.25rem; }
.step { display: flex; gap: 1.25rem; align-items: flex-start; }
.step-num { font-family: var(--display); font-size: 2.5rem; color: var(--accent); line-height: 1; min-width: 44px; opacity: 0.35; flex-shrink: 0; }
.step-content h4 { font-weight: 600; margin-bottom: 0.3rem; font-size: 0.95rem; }
.step-content p { color: var(--muted); font-size: 0.86rem; line-height: 1.6; }

footer { border-top: 1px solid var(--border); padding: 2.5rem 1.5rem; position: relative; z-index: 1; }
.footer-inner { max-width: 1000px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-logo { font-family: var(--display); font-size: 1.2rem; color: var(--accent); letter-spacing: 2px; text-decoration: none; }
.footer-links { display: flex; gap: 1.25rem; list-style: none; flex-wrap: wrap; }
.footer-links a { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-family: var(--mono); font-size: 0.65rem; color: var(--muted); width: 100%; margin-top: 1.25rem; border-top: 1px solid var(--border); padding-top: 1.25rem; line-height: 1.7; }

.pill-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.pill { font-family: var(--mono); font-size: 0.65rem; padding: 0.25rem 0.65rem; border: 1px solid var(--border); color: var(--muted); letter-spacing: 1px; text-transform: uppercase; border-radius: 2px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.divider { height: 1px; background: var(--border); margin: 2.5rem 0; }

@media (min-width: 1400px) { :root { --ad-col: 180px; } }
@media (max-width: 1024px) { .ad-col { display: none; } }
@media (max-width: 900px) { .content-grid { grid-template-columns: 1fr; gap: 0; } .card-grid { grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); } .nav-links { display: none !important; } .hamburger { display: flex; } }
@media (max-width: 600px) {
  :root { --nav-h: 56px; }
  nav { padding: 0 1rem; } .nav-logo { font-size: 1.25rem; }
  h1 { font-size: clamp(2.2rem, 10vw, 3rem); } h2 { font-size: clamp(1.8rem, 7vw, 2.5rem); }
  .hero { padding: 2rem 1rem; } .hero-sub { font-size: 0.92rem; }
  .btn-primary, .btn-secondary { padding: 0.75rem 1.25rem; font-size: 0.75rem; }
  .section { padding: 2rem 1rem; } .page-hero { padding: 2rem 1rem 1.75rem; }
  .card-grid { grid-template-columns: 1fr; } .card { padding: 1.25rem; }
  .content-block { padding: 1.25rem; } .glossary-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .info-table { font-size: 0.8rem; } .info-table th, .info-table td { padding: 0.6rem 0.75rem; }
  .ad-mobile-banner { display: flex; }
  footer { padding-bottom: 80px; }
  .footer-links { gap: 0.75rem; } .footer-copy { font-size: 0.6rem; }
}
@media (max-width: 380px) { .nav-logo { font-size: 1.1rem; letter-spacing: 1px; } }

/* contact form inputs */
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.form-label { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); }
.form-input { background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 0.75rem 1rem; font-family: var(--body); font-size: 0.9rem; outline: none; transition: border-color 0.2s; border-radius: 2px; width: 100%; }
.form-input:focus { border-color: var(--accent); }
textarea.form-input { resize: vertical; min-height: 140px; }