/* =========================================================================
   Latent Intelligence — Pilot Landing Page Styles
   =========================================================================
   Design tokens from colors_and_type.css + site.css component styles,
   merged into a single file with responsive media queries.
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* ---------- Core palette: the quarry ---------- */
  --bone-50:  #FBF7F1;
  --bone-100: #F5EEE2;
  --bone-200: #ECE1CD;
  --bone-300: #DDCDB2;
  --bone-400: #B8A687;
  --bone-500: #8A7A5D;
  --bone-600: #5E5240;
  --bone-700: #3E362A;
  --bone-800: #241F18;
  --bone-900: #14110C;

  --terracotta-50:  #FBEFE6;
  --terracotta-100: #F4D9BF;
  --terracotta-300: #E0A173;
  --terracotta-500: #C96A3C;
  --terracotta-700: #8F4421;
  --terracotta-900: #4D2310;

  --bronze-50:  #F6EEDC;
  --bronze-100: #E8D5A5;
  --bronze-300: #C9A865;
  --bronze-500: #A07B35;
  --bronze-700: #6B4F1C;
  --bronze-900: #3A2B0E;

  --sage-500:   #6F8B5C;
  --ember-500:  #B8432A;
  --ink-500:    #2B2A26;

  /* ---------- Semantic surfaces ---------- */
  --bg-page:        var(--bone-100);
  --bg-surface:     var(--bone-50);
  --bg-raised:      #FFFFFF;
  --bg-sunken:      var(--bone-200);
  --bg-inverse:     var(--bone-800);
  --bg-inverse-alt: var(--bone-900);

  /* ---------- Foregrounds ---------- */
  --fg-1: var(--bone-900);
  --fg-2: var(--bone-700);
  --fg-3: var(--bone-600);
  --fg-4: var(--bone-500);
  --fg-5: var(--bone-400);
  --fg-on-inverse: var(--bone-100);
  --fg-on-accent: var(--bone-50);

  /* ---------- Borders ---------- */
  --border-subtle: rgba(62, 54, 42, 0.08);
  --border-default: rgba(62, 54, 42, 0.16);
  --border-strong: rgba(62, 54, 42, 0.32);
  --border-inverse: rgba(245, 238, 226, 0.12);

  /* ---------- Accents ---------- */
  --accent:        var(--terracotta-500);
  --accent-hover:  var(--terracotta-700);
  --accent-soft:   var(--terracotta-50);
  --accent-2:      var(--bronze-500);

  /* ---------- Typography ---------- */
  --font-display: 'Cormorant Garamond', 'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-body:    'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --fs-display-xl: 96px;
  --fs-display-l:  72px;
  --fs-display-m:  56px;
  --fs-display-s:  42px;
  --fs-h1: 36px;
  --fs-h2: 28px;
  --fs-h3: 22px;
  --fs-h4: 18px;
  --fs-body-lg: 18px;
  --fs-body:    16px;
  --fs-body-sm: 14px;
  --fs-caption: 12px;
  --fs-eyebrow: 11px;

  --lh-tight:   1.08;
  --lh-display: 1.12;
  --lh-snug:    1.3;
  --lh-body:    1.55;
  --lh-loose:   1.7;

  --ls-display: -0.02em;
  --ls-tight:   -0.01em;
  --ls-normal:  0;
  --ls-eyebrow: 0.18em;

  /* ---------- Spacing ---------- */
  --sp-0:  0;
  --sp-1:  4px;
  --sp-2:  8px;
  --sp-3:  12px;
  --sp-4:  16px;
  --sp-5:  24px;
  --sp-6:  32px;
  --sp-7:  48px;
  --sp-8:  64px;
  --sp-9:  96px;
  --sp-10: 128px;

  /* ---------- Radii ---------- */
  --r-0:   0;
  --r-1:   2px;
  --r-2:   4px;
  --r-3:   8px;
  --r-4:   12px;
  --r-pill: 999px;

  /* ---------- Shadows ---------- */
  --shadow-1: 0 1px 2px rgba(36, 31, 24, 0.06);
  --shadow-2: 0 2px 6px rgba(36, 31, 24, 0.08), 0 1px 2px rgba(36, 31, 24, 0.04);
  --shadow-3: 0 8px 24px rgba(36, 31, 24, 0.10), 0 2px 4px rgba(36, 31, 24, 0.06);
  --shadow-4: 0 20px 48px rgba(36, 31, 24, 0.14), 0 4px 8px rgba(36, 31, 24, 0.06);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.5), inset 0 -1px 0 rgba(36, 31, 24, 0.04);

  /* ---------- Motion ---------- */
  --ease-chisel: cubic-bezier(0.2, 0.7, 0.2, 1);
  --ease-stone:  cubic-bezier(0.4, 0, 0.2, 1);
  --dur-1: 120ms;
  --dur-2: 200ms;
  --dur-3: 320ms;
  --dur-4: 560ms;
}

/* =========================================================================
   Global Reset
   ========================================================================= */
html, body {
  background: var(--bg-page);
  color: var(--fg-2);
  font-family: var(--font-body);
}
body { margin: 0; }
* { box-sizing: border-box; }
img { max-width: 100%; height: auto; }

a {
  color: var(--terracotta-700);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--terracotta-300);
  transition: color var(--dur-2) var(--ease-chisel);
}
a:hover { color: var(--terracotta-900); text-decoration-color: var(--terracotta-500); }

/* =========================================================================
   Layout
   ========================================================================= */
.li-container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* =========================================================================
   NAV
   ========================================================================= */
.li-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(251, 247, 241, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.li-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.li-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  color: var(--fg-1);
  text-decoration: none;
}
.li-brand:hover { color: var(--fg-1); }
.li-brand em {
  font-style: italic;
  font-weight: 400;
  color: var(--terracotta-700);
}

/* =========================================================================
   BUTTONS
   ========================================================================= */
.li-btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--dur-2) var(--ease-chisel);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.li-btn:active {
  transform: scale(0.98);
  box-shadow: inset 0 2px 4px rgba(36, 31, 24, 0.15);
}
.li-btn-lg { font-size: 15px; padding: 14px 24px; }
.li-btn-primary { background: var(--bone-800); color: var(--bone-100); }
.li-btn-primary:hover { background: var(--bone-900); color: var(--bone-100); }
.li-btn-accent { background: var(--terracotta-500); color: var(--bone-50); }
.li-btn-accent:hover { background: var(--terracotta-700); color: var(--bone-50); }
.li-btn-secondary { background: transparent; color: var(--fg-1); border-color: var(--border-strong); }
.li-btn-secondary:hover { background: rgba(62,54,42,0.06); color: var(--fg-1); }
.li-btn-ghost-dark { background: transparent; color: var(--bone-100); border-color: rgba(245,238,226,0.25); }
.li-btn-ghost-dark:hover { background: rgba(245,238,226,0.08); color: var(--bone-100); }

/* =========================================================================
   EYEBROW
   ========================================================================= */
.li-eyebrow {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-4);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.li-eyebrow-dark { color: var(--bone-400); }
.li-eyebrow-mark { width: 24px; height: 1px; background: var(--terracotta-500); display: inline-block; }

/* =========================================================================
   HERO
   ========================================================================= */
.li-hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.li-hero-texture {
  position: absolute;
  inset: 0;
  opacity: 0.3;
}
.li-hero-texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.li-hero-inner {
  position: relative;
  max-width: 1100px;
  text-align: left;
}
.li-display-xl {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--fg-1);
  margin: 18px 0 28px;
  max-width: 820px;
  text-wrap: pretty;
}
.li-display-xl em {
  font-style: italic;
  font-weight: 400;
  color: var(--terracotta-700);
}
.li-lede {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--fg-2);
  max-width: 820px;
  margin: 0 0 36px;
}
.li-hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 0;
}
.li-hero-meta {
  display: flex;
  gap: 12px;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--fg-4);
  letter-spacing: 0.04em;
}

/* =========================================================================
   HOW IT WORKS
   ========================================================================= */
.li-how-section {
  padding: 96px 0;
  background: var(--bone-50);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.li-section-head {
  max-width: 780px;
  margin-bottom: 56px;
}
.li-section-head .li-eyebrow { margin-bottom: 16px; }

.li-display-s {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 42px;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--fg-1);
  margin: 0;
}
.li-display-s em {
  font-style: italic;
  color: var(--terracotta-700);
}

.li-steps-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.li-step-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 40px;
  box-shadow: var(--shadow-2);
  display: flex;
  flex-direction: column;
}
.li-step-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 8px;
}
.li-step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--terracotta-700);
  letter-spacing: 0.08em;
}
.li-step-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 28px;
  letter-spacing: -0.01em;
  color: var(--fg-1);
  margin: 0;
}
.li-step-lead {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  color: var(--fg-1);
  margin: 0 0 12px;
}
.li-step-body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-3);
  margin: 0;
  flex: 1;
}
.li-step-footer {
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--fg-4);
  letter-spacing: 0.02em;
}

/* =========================================================================
   CTA
   ========================================================================= */
.li-cta {
  position: relative;
  overflow: hidden;
  background: var(--bone-800);
  color: var(--bone-100);
  padding: 128px 0;
}
.li-cta-texture {
  position: absolute;
  inset: 0;
  opacity: 0.5;
}
.li-cta-texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.li-cta-inner {
  position: relative;
  max-width: 900px;
  text-align: center;
  margin: 0 auto;
}
.li-cta-inner .li-eyebrow {
  justify-content: center;
  margin-bottom: 16px;
}
.li-display-l {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(44px, 5.5vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 14px 0 24px;
  color: var(--bone-50);
}
.li-display-l em {
  font-style: italic;
  color: var(--terracotta-300);
}
.li-cta-body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--bone-300);
  max-width: 640px;
  margin: 0 auto 36px;
}
.li-cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* =========================================================================
   FOOTER (minimal pilot version)
   ========================================================================= */
.li-footer {
  background: var(--bone-900);
  color: var(--bone-300);
  padding: 64px 0 28px;
}
.li-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.li-footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.li-footer-brand p {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--bone-400);
  margin: 0;
}
.li-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid rgba(245,238,226,0.08);
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--bone-500);
}

/* =========================================================================
   RESPONSIVE — Mobile-first overrides
   ========================================================================= */

/* Tablet and below */
@media (max-width: 768px) {
  .li-container { padding: 0 20px; }
  .li-nav-inner { padding: 14px 20px; }

  .li-hero { padding: 64px 0 72px; }
  .li-lede { font-size: 17px; }

  .li-how-section { padding: 80px 0; }
  .li-section-head { margin-bottom: 40px; }
  .li-display-s { font-size: 34px; }
  .li-steps-list { grid-template-columns: 1fr; }
  .li-step-card { padding: 28px; }

  .li-cta { padding: 80px 0; }

  .li-footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .li-container { padding: 0 16px; }
  .li-nav-inner { padding: 12px 16px; }

  .li-brand { font-size: 17px; gap: 8px; }
  .li-brand img { width: 24px; height: 24px; }

  .li-btn-lg { font-size: 14px; padding: 12px 20px; }

  .li-hero { padding: 56px 0 64px; }
  .li-lede { font-size: 16px; }

  .li-step-card { padding: 24px; }
  .li-step-title { font-size: 24px; }

  .li-display-s { font-size: 28px; }
  .li-cta { padding: 64px 0; }
  .li-footer { padding: 48px 0 24px; }
}