/* =========================================================================
   LEX AI — Marketing site shared styles
   ========================================================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-0: #0d0d0f;
  --bg-1: #111114;
  --bg-2: #17171b;
  --bg-3: #1e1e24;
  --bg-4: #25252d;
  --border: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.12);
  --gold: #dcb43c;
  --gold-hover: #f0ca5e;
  --gold-dim: rgba(220,180,60,0.6);
  --gold-bg: rgba(220,180,60,0.08);
  --gold-bg-strong: rgba(220,180,60,0.14);
  --gold-glow: 0 0 0 1px rgba(220,180,60,0.3);
  --text: #e8e8ed;
  --text-muted: #9696a3;
  --text-dim: #6e6e7a;
  --text-faint: #4a4a56;
  --green: #4ade80;
  --red: #e88a8a;
  --blue: rgba(100,160,220,0.85);

  --font-ui: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, Menlo, Consolas, monospace;

  --nav-h: 64px;
  --maxw: 1240px;
  --maxw-narrow: 980px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  padding-top: var(--nav-h);
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; color: inherit; }
input, textarea { font-family: inherit; color: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--gold); color: #1a1308; }

/* Subtle background pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 1200px 600px at 50% -10%, rgba(220,180,60,0.06), transparent 60%),
    radial-gradient(ellipse 800px 500px at 10% 90%, rgba(100,160,220,0.03), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* =========================================================================
   Typography
   ========================================================================= */
h1, h2, h3, h4 { margin: 0; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.05; font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); line-height: 1.15; }
h3 { font-size: 1.4rem; line-height: 1.25; }
h4 { font-size: 1.1rem; line-height: 1.35; }
p  { margin: 0 0 1em; color: var(--text-muted); }
p.lead { font-size: 1.15rem; color: var(--text); line-height: 1.55; }

.mono { font-family: var(--font-mono); }
.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kicker::before {
  content: ''; width: 18px; height: 1px;
  background: var(--gold-dim);
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--text-dim);
}

/* =========================================================================
   Layout
   ========================================================================= */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }
.container-narrow { max-width: var(--maxw-narrow); margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }
section { padding: 96px 0; position: relative; }
section.tight { padding: 64px 0; }
section.deep { padding: 128px 0; }
.divider { height: 1px; background: var(--border); margin: 0; border: 0; }

/* =========================================================================
   Navigation
   ========================================================================= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 32px;
  border-bottom: 1px solid transparent;
  transition: background 0.18s ease, border-color 0.18s ease, backdrop-filter 0.18s ease;
}
.nav.scrolled {
  background: rgba(13,13,15,0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: var(--maxw); margin: 0 auto;
  gap: 24px;
}
.nav-brand {
  display: flex; align-items: center; gap: 12px;
}
.nav-brand .word {
  font-weight: 300;
  font-size: 15px;
  letter-spacing: 0.32em;
  color: var(--text);
}
.nav-brand .word b { color: var(--gold); font-weight: 400; }
.nav-links {
  display: flex; gap: 28px;
  font-size: 14px;
}
.nav-links a {
  color: var(--text-muted);
  transition: color 0.15s;
  position: relative;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--gold); }
.nav-links a.active::after {
  content: ''; position: absolute;
  left: 0; right: 0; bottom: -22px;
  height: 1px; background: var(--gold);
}
.nav-cta {
  display: flex; gap: 10px; align-items: center;
}

/* =========================================================================
   Logo (scales mark)
   ========================================================================= */
.logo-mark {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(220,180,60,0.5);
  display: grid; place-items: center;
  background: radial-gradient(circle, rgba(220,180,60,0.10), rgba(220,180,60,0) 70%);
  flex-shrink: 0;
}
.logo-mark svg { color: var(--gold); }
.logo-mark.lg { width: 88px; height: 88px; }
.logo-mark.lg svg { width: 44px; height: 44px; }
.logo-mark.xl { width: 132px; height: 132px; }
.logo-mark.xl svg { width: 64px; height: 64px; }

/* Pulse animation for hero logo */
@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(220,180,60,0.25), 0 0 0 1px rgba(220,180,60,0.5) inset; }
  50%      { box-shadow: 0 0 0 14px rgba(220,180,60,0), 0 0 0 1px rgba(220,180,60,0.7) inset; }
}
.logo-mark.pulse { animation: pulse-gold 3s ease-in-out infinite; }

/* Hero wordmark */
.wordmark {
  font-weight: 300;
  font-size: clamp(2.5rem, 6vw, 4rem);
  letter-spacing: 0.32em;
  color: var(--text);
  text-transform: uppercase;
  text-align: center;
  margin: 28px 0 0;
}
.wordmark b { color: var(--gold); font-weight: 300; }

/* =========================================================================
   Buttons
   ========================================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  cursor: pointer;
  background: transparent;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--gold);
  color: #1a1308;
  border-color: var(--gold);
  font-weight: 600;
}
.btn-primary:hover { background: var(--gold-hover); border-color: var(--gold-hover); }
.btn-secondary {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold-dim);
}
.btn-secondary:hover { border-color: var(--gold); background: var(--gold-bg); }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
.btn-ghost:hover { color: var(--text); border-color: var(--border-strong); background: var(--bg-2); }
.btn-lg { padding: 14px 26px; font-size: 15px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }

/* =========================================================================
   Cards
   ========================================================================= */
.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}
.card:hover {
  border-color: rgba(220,180,60,0.3);
  box-shadow: var(--gold-glow);
}
.card.flat { background: var(--bg-2); }
.card.outline { background: transparent; }

/* =========================================================================
   Chips / badges
   ========================================================================= */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 4px;
  background: var(--bg-3);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.chip.gold {
  background: var(--gold-bg);
  color: var(--gold);
  border-color: rgba(220,180,60,0.25);
}
.chip.green {
  background: rgba(74,222,128,0.10);
  color: var(--green);
  border-color: rgba(74,222,128,0.25);
}
.chip.blue {
  background: rgba(100,160,220,0.10);
  color: var(--blue);
  border-color: rgba(100,160,220,0.25);
}
.chip-lg { padding: 7px 14px; font-size: 12px; }

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  padding: 80px 0 96px;
  text-align: center;
  position: relative;
}
.hero-grid-bg {
  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: 56px 56px;
  background-position: center;
  mask-image: radial-gradient(ellipse 800px 500px at center, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 800px 500px at center, #000 0%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; }
.hero p.tagline {
  font-size: 1.3rem;
  color: var(--text);
  margin: 28px auto 12px;
  max-width: 720px;
  line-height: 1.4;
}
.hero p.sub-tagline {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Feature strip (3 items under hero) */
.feature-strip {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
}
.feature-strip-item {
  padding: 28px 32px;
  display: flex; align-items: center; gap: 16px;
  border-left: 1px solid var(--border);
}
.feature-strip-item:first-child { border-left: 0; }
.feature-strip-item .si-icon {
  width: 40px; height: 40px;
  flex-shrink: 0;
  display: grid; place-items: center;
  background: var(--gold-bg);
  border: 1px solid rgba(220,180,60,0.2);
  border-radius: 8px;
  color: var(--gold);
}
.feature-strip-item .si-title { font-weight: 600; font-size: 14px; color: var(--text); margin-bottom: 2px; }
.feature-strip-item .si-desc { font-size: 12.5px; color: var(--text-muted); line-height: 1.4; }

/* =========================================================================
   Reveal animation
   ========================================================================= */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-1);
  padding: 56px 0 32px;
  margin-top: 64px;
  position: relative; z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-brand .tagline {
  font-size: 13px; color: var(--text-muted); margin-top: 16px; max-width: 320px;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  margin: 0 0 16px;
  font-weight: 500;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 13.5px; color: var(--text-muted); transition: color 0.15s; }
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

/* =========================================================================
   Sections — alternating feature blocks
   ========================================================================= */
.feat-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.feat-block.flip { direction: rtl; }
.feat-block.flip > * { direction: ltr; }
.feat-block .feat-text h2 { margin: 16px 0 16px; }
.feat-block .feat-text p { font-size: 1.05rem; max-width: 480px; }
.feat-block .feat-text .bullet-list {
  list-style: none; padding: 0; margin: 20px 0 0;
  display: flex; flex-direction: column; gap: 10px;
  font-size: 14px; color: var(--text-muted);
}
.feat-block .feat-text .bullet-list li {
  display: flex; gap: 10px; align-items: flex-start;
}
.feat-block .feat-text .bullet-list .b-dot {
  color: var(--gold); flex-shrink: 0; margin-top: 2px;
}

.mock {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px var(--border);
  position: relative;
}
.mock-titlebar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: linear-gradient(180deg, #0e0e10, #0a0a0c);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-dim); letter-spacing: 0.08em;
}
.mock-titlebar .dot-r, .mock-titlebar .dot-y, .mock-titlebar .dot-g {
  width: 9px; height: 9px; border-radius: 50%;
}
.mock-titlebar .dot-r { background: #5a3a3a; }
.mock-titlebar .dot-y { background: #5a5a3a; }
.mock-titlebar .dot-g { background: #3a5a3a; }
.mock-titlebar .tb-title { margin-left: 8px; }

/* =========================================================================
   Trust strip (law chips)
   ========================================================================= */
.trust-strip {
  text-align: center;
  padding: 64px 0;
}
.trust-strip .label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  margin-bottom: 32px;
}
.trust-chips {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center;
  max-width: 880px;
  margin: 0 auto;
}

/* =========================================================================
   CTA section
   ========================================================================= */
.cta-section {
  text-align: center;
  background:
    radial-gradient(ellipse 800px 400px at center, rgba(220,180,60,0.08), transparent 60%);
  padding: 96px 0;
}
.cta-section h2 { margin-bottom: 16px; }
.cta-section p { font-size: 1.1rem; max-width: 560px; margin: 0 auto 32px; }

/* =========================================================================
   Hero preview grid
   ========================================================================= */
.hero-preview-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
}

/* =========================================================================
   Hamburger / mobile nav
   ========================================================================= */
.nav-hamburger {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  line-height: 0;
  transition: border-color 0.15s, background 0.15s;
}
.nav-hamburger:hover { border-color: var(--border-strong); background: var(--bg-2); }

.nav-mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(13,13,15,0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px 24px;
  z-index: 99;
  display: flex;
  flex-direction: column;
}
.nav-mobile-menu a {
  display: block;
  padding: 16px 0;
  font-size: 16px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  transition: color 0.15s;
}
.nav-mobile-menu a:hover { color: var(--text); }
.nav-mobile-menu a.active { color: var(--gold); }
.nav-mobile-cta {
  margin-top: 20px;
  justify-content: center;
  width: 100%;
}

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta-desktop { display: none; }
  .nav-hamburger { display: flex; }
  /* Push hamburger to far right */
  .nav-cta { margin-left: auto; }

  .feat-block { grid-template-columns: 1fr; gap: 32px; }
  .feat-block.flip { direction: ltr; }
  .feature-strip { grid-template-columns: 1fr; }
  .feature-strip-item { border-left: 0; border-top: 1px solid var(--border); }
  .feature-strip-item:first-child { border-top: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 600px) {
  .container, .container-narrow { padding: 0 18px; }
  section { padding: 56px 0; }
  section.deep { padding: 80px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
  .hero { padding: 56px 0 64px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { justify-content: center; }
  .hero p.tagline { font-size: 1.1rem; }
  .hero p.sub-tagline { font-size: 12px; }
  .wordmark { font-size: clamp(2rem, 10vw, 3rem); }
  /* Hide mock titlebar right text that overflows */
  .mock-titlebar .tb-right { display: none; }
  /* Corpus search meta (white-space:nowrap) */
  .corpus-meta { display: none; }
  /* Hero app preview: collapse sidebar */
  .hero-preview-grid { grid-template-columns: 1fr !important; }
  .hero-preview-sidebar { display: none !important; }
  /* Dosar deadlines wrap */
  .mock-dosar .md-deadlines { flex-wrap: wrap; }
}