/* ===================================================================
   Cadence Marketing Site — Shared Design System
   Brand: #1E3A5F (navy), #4A90D9 (blue), #F5A623 (orange), Inter
   =================================================================== */

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

:root {
  --primary: #1E3A5F;
  --primary-dark: #152B47;
  --primary-light: #254a78;
  --secondary: #4A90D9;
  --secondary-light: #6AAAE5;
  --secondary-dark: #3278C2;
  --accent: #F5A623;
  --accent-light: #F8BB52;
  --accent-dark: #E0931A;
  --white: #FFFFFF;
  --off-white: #F8FAFC;
  --gray-50: #F1F5F9;
  --gray-100: #E2E8F0;
  --gray-200: #CBD5E1;
  --gray-300: #94A3B8;
  --gray-500: #64748B;
  --gray-700: #334155;
  --gray-900: #0F172A;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --max-w: 1160px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--white);
  color: var(--gray-900);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-100);
  transition: box-shadow 0.3s;
}
nav.scrolled { box-shadow: 0 2px 20px rgba(30,58,95,0.10); }
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo span { color: var(--secondary); }
.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  padding: 6px 12px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover, .nav-links a.active { background: var(--gray-50); color: var(--primary); }
.nav-links a.active { font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.beta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-900);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.beta-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); }
.btn-signin {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 6px;
  transition: background 0.15s;
}
.btn-signin:hover { background: var(--gray-50); }
.btn-demo {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  background: var(--primary);
  text-decoration: none;
  padding: 9px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.btn-demo:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* ── LAYOUT ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-sm { padding: 64px 0; }
.section-lg { padding: 112px 0; }
.section-dark { background: var(--primary); }
.section-light { background: var(--gray-50); }
.section-white { background: var(--white); }

/* ── TYPOGRAPHY ── */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 20px;
  background: rgba(74,144,217,0.1);
  color: var(--secondary-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-badge-dark {
  background: rgba(245,166,35,0.15);
  border: 1px solid rgba(245,166,35,0.25);
  color: var(--accent-light);
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.section-headline {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--primary);
  margin-bottom: 16px;
}
.section-headline.xl { font-size: clamp(32px, 4vw, 52px); }
.section-headline .accent { color: var(--secondary); }
.section-headline.white { color: white; }
.section-subhead {
  font-size: 18px;
  color: var(--gray-500);
  line-height: 1.65;
  max-width: 640px;
  margin-bottom: 48px;
}
.section-subhead.white { color: rgba(255,255,255,0.75); }
.center { text-align: center; }
.center .section-subhead { margin-left: auto; margin-right: auto; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 9px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 16px rgba(30,58,95,0.2); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(30,58,95,0.3); }
.btn-secondary { background: transparent; color: var(--primary); border: 2px solid var(--gray-200); }
.btn-secondary:hover { border-color: var(--primary); background: rgba(30,58,95,0.03); }
.btn-accent { background: var(--accent); color: var(--primary-dark); font-weight: 700; }
.btn-accent:hover { background: var(--accent-light); box-shadow: 0 4px 12px rgba(245,166,35,0.35); }
.btn-white { background: white; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.btn-white:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,0.18); }
.btn-white-outline { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.4); }
.btn-white-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.7); }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 10px; }
.btn-xl { padding: 16px 40px; font-size: 17px; border-radius: 11px; }
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── CARDS ── */
.card {
  background: var(--white);
  border-radius: 16px;
  padding: 28px;
  border: 1px solid var(--gray-100);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(30,58,95,0.1); }
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

/* ── FADE ANIMATION ── */
.fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ── HERO ── */
.hero-light {
  background: linear-gradient(160deg, #F8FAFC 0%, #EFF6FF 50%, #F0F9FF 100%);
  padding: 80px 0 72px;
}
.hero-dark {
  background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}
.hero-dark::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 800px; height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,144,217,0.12) 0%, transparent 70%);
  pointer-events: none;
}

/* ── PAGE HERO (inner pages) ── */
.page-hero {
  background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  padding: 64px 0 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,144,217,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 900;
  color: white;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.page-hero h1 .accent { color: var(--accent); }
.page-hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}
.breadcrumb {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}
.breadcrumb a { color: rgba(255,255,255,0.6); text-decoration: none; }
.breadcrumb a:hover { color: rgba(255,255,255,0.85); }
.breadcrumb span { margin: 0 6px; }

/* ── FEATURE BLOCKS ── */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--gray-100);
}
.feature-block:last-child { border-bottom: none; }
.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }
.feature-kicker {
  font-size: 12px;
  font-weight: 700;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.feature-block h3 {
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.feature-block p {
  font-size: 16px;
  color: var(--gray-500);
  line-height: 1.75;
  margin-bottom: 16px;
}
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.55;
}
.feature-list li::before {
  content: '✓';
  font-weight: 800;
  color: var(--secondary);
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-visual {
  background: var(--gray-50);
  border-radius: 16px;
  border: 1px solid var(--gray-100);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(30,58,95,0.08);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mock-ui {
  background: #0a1628;
  width: 100%;
  padding: 24px;
  border-radius: 12px;
}

/* ── GRIDS ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.gap-lg { gap: 32px; }

/* ── CTA SECTION ── */
.section-cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 88px 0;
  text-align: center;
}
.section-cta h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 900;
  color: white;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 14px;
}
.section-cta p {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

/* ── FOOTER ── */
footer {
  background: var(--gray-900);
  padding: 56px 24px 28px;
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; }
.footer-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 64px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  margin-bottom: 28px;
}
.footer-logo { font-size: 20px; font-weight: 800; color: white; margin-bottom: 10px; display: block; }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.4); line-height: 1.5; max-width: 220px; margin-bottom: 16px; }
.footer-contact { font-size: 13px; }
.footer-contact a { color: var(--secondary-light); text-decoration: none; }
.footer-contact a:hover { text-decoration: underline; }
.footer-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.footer-col h4 { font-size: 12px; font-weight: 700; color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.4); text-decoration: none; padding: 3px 0; transition: color 0.15s; }
.footer-col a:hover { color: white; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a { color: rgba(255,255,255,0.3); text-decoration: none; }
.footer-bottom a:hover { color: rgba(255,255,255,0.6); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .feature-block { gap: 40px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .feature-block { grid-template-columns: 1fr; }
  .feature-block.reverse { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; }
  .btn-group .btn { justify-content: center; }
}