/* ═══════════════════════════════════════════════════════
   N.O.R.R.I.S. Landing Page — landing.css
   Accent: electric green #00ff88
   Base: near-black #0a0a0a
   Target: < 80 KB total page weight
═══════════════════════════════════════════════════════ */

/* ── Reset + Base ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0a0a0a;
  --bg-surface:  #111111;
  --bg-card:     #141414;
  --border:      rgba(255,255,255,0.08);
  --accent:      #00ff88;
  --accent-dim:  rgba(0,255,136,0.12);
  --text:        #f0f0f0;
  --text-muted:  #888888;
  --text-faint:  #555555;
  --font:        -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono:   "SF Mono", "Fira Code", "Cascadia Code", monospace;
  --radius:      6px;
  --max-w:       1100px;
  --transition:  0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ── Fade-in animation ──────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Header ─────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--text);
  text-transform: uppercase;
  transition: color var(--transition);
}
.logo:hover { color: var(--accent); }

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

.site-header nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  transition: color var(--transition);
}
.site-header nav a:hover { color: var(--text); }

.site-header nav .nav-cta {
  color: var(--accent);
  border: 1px solid rgba(0,255,136,0.35);
  padding: 5px 14px;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.site-header nav .nav-cta:hover {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ── Shared section layout ──────────────────────────── */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 48px;
}

/* ── Hero ───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 56px; /* header height */
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 96px 24px 80px;
  animation: fadeUp 0.7s ease both;
}

.hero-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0,255,136,0.25);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 40px;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 88px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 28px;
  max-width: 820px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 48px;
}

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

/* ── Background grid ────────────────────────────────── */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 100%);
}

/* Subtle radial glow behind hero text */
.hero::before {
  content: "";
  position: absolute;
  top: 10%;
  left: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0,255,136,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* ── Buttons ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 13px 28px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  letter-spacing: 0.01em;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.15s ease;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: #1affaa;
  border-color: #1affaa;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.04);
}

/* ── Features ───────────────────────────────────────── */
.features {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.feature-card {
  background: var(--bg-card);
  padding: 44px 36px;
  transition: background var(--transition);
}
.feature-card:hover { background: #1a1a1a; }

.feature-icon {
  color: var(--accent);
  margin-bottom: 24px;
  display: block;
  width: 32px;
  height: 32px;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── How it works ───────────────────────────────────── */
.how-it-works {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  counter-reset: steps;
}

.step {
  background: var(--bg-card);
  padding: 40px 32px;
  position: relative;
  transition: background var(--transition);
}
.step:hover { background: #1a1a1a; }

.step-number {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  margin-bottom: 24px;
  font-family: var(--font-mono);
}

.step-icon {
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
  width: 24px;
  height: 24px;
}

.step-content h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step-content p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.step-content code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(255,255,255,0.07);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent);
}

/* ── Connector line between steps ──────────────────── */
.steps .step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 44px;
  right: -1px;
  width: 1px;
  height: 24px;
  background: var(--border);
}

/* ── Disclosures ─────────────────────────────────────── */
.disclosures {
  padding: 80px 0 120px;
}

.disclosure-card {
  display: flex;
  gap: 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 40px 44px;
  align-items: flex-start;
}

.disclosure-icon {
  color: var(--text-faint);
  flex-shrink: 0;
  margin-top: 3px;
}

.disclosure-card h2 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 12px;
}

.disclosure-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 720px;
}

.disclosure-card a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.disclosure-card a:hover { color: #1affaa; }

/* ── Footer ─────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 56px 0;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.footer-brand {
  display: flex;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-faint);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text); }

.footer-copy {
  font-size: 12px;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: 1fr 1fr;
  }
  .steps .step:not(:last-child)::after { display: none; }
}

@media (max-width: 600px) {
  .hero h1 { font-size: 38px; }
  .hero-inner { padding: 72px 20px 64px; }
  .section-inner { padding: 0 20px; }
  .steps { grid-template-columns: 1fr; }
  .feature-card { padding: 32px 24px; }
  .step { padding: 28px 24px; }
  .disclosure-card { padding: 28px 24px; flex-direction: column; gap: 12px; }
  .site-header nav { gap: 20px; }
  .hero-actions { flex-direction: column; }
  .btn { justify-content: center; }
}

@media (max-width: 400px) {
  .site-header nav a:not(.nav-cta) { display: none; }
}

/* ── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .fade-up { opacity: 1; transform: none; }
}