/* Wooly AI — Shared Design Tokens & Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Nunito:wght@400;600;700;800&display=swap');

:root {
  /* Brand Green */
  --green-50: #E5F9EE;
  --green-100: #B8F0D1;
  --green-300: #5EDC97;
  --green-400: #34D27E;
  --green-500: #12C96A;
  --green-600: #00B357;
  --green-700: #009348;
  --green-900: #004F29;

  /* Accent */
  --indigo: #6366F1;
  --indigo-light: #EEF2FF;

  /* Neutrals */
  --bg: #F6F7F9;
  --bg-white: #FFFFFF;
  --text-primary: #212B36;
  --text-secondary: #637381;
  --text-tertiary: #9DA4B3;
  --border: #E8ECF0;
  --border-dark: #D1D9E0;

  /* Utility */
  --cta-bg: #111111;
  --cta-hover: #333333;

  /* Spacing */
  --sp1: 8px;
  --sp2: 16px;
  --sp3: 24px;
  --sp4: 32px;
  --sp6: 48px;
  --sp8: 64px;
  --sp12: 96px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 9999px;

  /* Shadow */
  --shadow-sm: 0 2px 8px rgba(145,158,171,0.10);
  --shadow-md: 0 4px 12px rgba(145,158,171,0.15);
  --shadow-lg: 0 12px 40px rgba(145,158,171,0.18);
  --shadow-green: 0 4px 24px rgba(18,201,106,0.25);

  /* Typography */
  --font-main: 'Inter', 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(246,247,249,0.9);
  backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.site-nav.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp4);
  height: 64px;
  display: flex;
  align-items: center;
  gap: var(--sp4);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.nav-logo-text span { color: var(--green-500); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--green-50);
}
.nav-link.active { color: var(--green-600); }
.nav-cta {
  margin-left: var(--sp2);
  background: var(--cta-bg);
  color: white;
  font-size: 14px;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}
.nav-cta:hover { background: var(--cta-hover); transform: translateY(-1px); }

/* FOOTER */
.site-footer {
  background: var(--text-primary);
  color: rgba(255,255,255,0.7);
  padding: var(--sp12) var(--sp4) var(--sp6);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp8);
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  margin-top: var(--sp2);
  max-width: 280px;
  color: rgba(255,255,255,0.55);
}
.footer-col h4 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--sp2);
}
.footer-col a {
  display: block;
  text-decoration: none;
  color: rgba(255,255,255,0.65);
  font-size: 13px;
  margin-bottom: 8px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--green-400); }
.footer-bottom {
  max-width: 1200px;
  margin: var(--sp6) auto 0;
  padding-top: var(--sp3);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}
.footer-logo-text { font-size: 16px; font-weight: 800; color: white; }
.footer-logo-text span { color: var(--green-400); }

/* SECTION UTILITIES */
.section { padding: var(--sp12) var(--sp4); }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-600);
  background: var(--green-50);
  border: 1px solid var(--green-100);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--sp3);
}
.section-headline {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -1px;
  text-wrap: pretty;
}
.section-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  text-wrap: pretty;
  margin-top: var(--sp2);
}
.text-center { text-align: center; }
.text-center .section-sub { margin: var(--sp2) auto 0; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--cta-bg);
  color: white;
}
.btn-primary:hover { background: var(--cta-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-green {
  background: var(--green-500);
  color: white;
}
.btn-green:hover { background: var(--green-600); transform: translateY(-2px); box-shadow: var(--shadow-green); }
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-dark);
}
.btn-outline:hover { border-color: var(--green-500); color: var(--green-600); transform: translateY(-1px); }

/* CARD */
.card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: box-shadow 0.25s, transform 0.25s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }

/* SCROLL REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: var(--sp4); }
  .nav-links { display: none; }
}