/* ============================================================
   GLOBAL CSS — Reset, Typography, Header, Footer, Utilities
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=DM+Serif+Display:ital@0;1&display=swap');

:root {
  /* Colors */
  --bg: #F7F9FC;
  --surface: #FFFFFF;
  --surface-2: #F0F4F8;
  --border: #E2E8F0;
  --border-dark: #CBD5E1;
  --text: #0F172A;
  --text-2: #475569;
  --text-3: #94A3B8;
  --accent: #1E3A8A;
  --accent-hover: #1E40AF;
  --accent-light: #EFF6FF;
  --accent-mid: #DBEAFE;
  --gold: #B45309;
  --gold-bg: #FEF3C7;
  --gold-border: #FCD34D;
  --success: #059669;
  --success-bg: #ECFDF5;
  --red: #DC2626;

  /* Spacing & layout */
  --max-width: 1160px;
  --header-h: 64px;
  --radius: 8px;
  --radius-sm: 4px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08), 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 8px 30px rgba(15, 23, 42, 0.10), 0 2px 8px rgba(15, 23, 42, 0.06);

  /* Typography */
  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-size-base: 16px;
  --line-height: 1.65;
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ---- Layout ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section--sm {
  padding: 2.5rem 0;
}

.section--lg {
  padding: 5rem 0;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-family: var(--font-display); font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 400; letter-spacing: -0.01em; line-height: 1.1; }
h2 { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 400; letter-spacing: -0.005em; line-height: 1.18; }
h3 { font-size: 1.125rem; font-weight: 700; letter-spacing: -0.01em; }
h4 { font-size: 1rem; font-weight: 600; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: 1.125rem;
  color: var(--text-2);
  line-height: 1.7;
}

.text-muted { color: var(--text-2); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  transition: background 0.18s ease, box-shadow 0.18s ease, transform 0.12s ease;
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 2px rgba(30, 58, 138, 0.25);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn-outline:hover {
  background: var(--accent-light);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--border-dark);
  box-shadow: var(--shadow-sm);
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
}

/* ---- Badge / Tag ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
  padding: 0.25rem 0.625rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}

.badge-gold {
  background: var(--gold-bg);
  color: var(--gold);
  border: 1px solid var(--gold-border);
}

.badge-blue {
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent-mid);
}

.badge-green {
  background: var(--success-bg);
  color: var(--success);
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
}

/* ---- Divider ---- */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

/* ============================================================
   HEADER
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.site-logo__text {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.site-logo__text span {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0;
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.site-nav a {
  padding: 0.4375rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color 0.15s ease, background 0.15s ease;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--surface-2);
}

.site-nav a.active {
  color: var(--accent);
  font-weight: 600;
}

.site-nav .nav-cta {
  margin-left: 0.5rem;
  padding: 0.4375rem 1rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}

.site-nav .nav-cta:hover {
  background: var(--accent-hover);
  color: #fff;
  background-color: var(--accent-hover);
  box-shadow: 0 2px 8px rgba(30, 58, 138, 0.25);
}

/* Mobile hamburger — CSS-only */
.nav-toggle-label {
  display: none;
  cursor: pointer;
  margin-left: auto;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-label span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

#nav-toggle {
  display: none;
}

@media (max-width: 767px) {
  .nav-toggle-label {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 0.25rem;
    box-shadow: var(--shadow-md);
  }

  .site-nav a {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 1rem;
  }

  .site-nav .nav-cta {
    margin-left: 0;
    text-align: center;
    justify-content: center;
    margin-top: 0.5rem;
  }

  #nav-toggle:checked ~ .site-nav {
    display: flex;
  }

  #nav-toggle:checked + .nav-toggle-label span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  #nav-toggle:checked + .nav-toggle-label span:nth-child(2) {
    opacity: 0;
  }
  #nav-toggle:checked + .nav-toggle-label span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  background: var(--text);
  color: #CBD5E1;
  padding: 4rem 0 2rem;
  margin-top: 6rem;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand {}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.footer-logo__icon { width: 28px; height: 28px; opacity: 0.9; }
.footer-logo__text {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
}
.footer-brand p {
  font-size: 0.875rem;
  color: #94A3B8;
  line-height: 1.6;
  max-width: 280px;
}

.footer-nav h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #E2E8F0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav ul li a {
  font-size: 0.9375rem;
  color: #94A3B8;
  transition: color 0.15s ease;
  text-decoration: none;
}

.footer-nav ul li a:hover {
  color: #fff;
}

.footer-sources {}
.footer-sources h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #E2E8F0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}
.footer-sources ul {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.footer-sources ul li a {
  font-size: 0.875rem;
  color: #94A3B8;
  transition: color 0.15s ease;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.footer-sources ul li a:hover { color: #CBD5E1; }
.footer-sources ul li a::after {
  content: '↗';
  font-size: 0.75rem;
  opacity: 0.6;
}

.site-footer__bottom {
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-disclaimer {
  font-size: 0.8125rem;
  color: #64748B;
  line-height: 1.6;
  max-width: 800px;
}

.footer-copyright {
  font-size: 0.8125rem;
  color: #475569;
}

@media (max-width: 767px) {
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ============================================================
   UTILITIES
   ============================================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }

.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.flex-wrap { flex-wrap: wrap; }

/* Section header pattern */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.section-header {
  max-width: 680px;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--text-2);
  font-size: 1.0625rem;
  line-height: 1.65;
  margin-bottom: 0;
}