/* ============================================================================
   global.css — America the Beautiful Pass
   CSS variables, reset, typography, and shared components used on every page:
   independence banner, nav, buttons, badges, flag dividers, footer.
   Design system: RWB (Red/White/Blue) vintage-WPA-poster. Loaded on all pages;
   page-specific styles live in home.css / explore.css / location.css / etc.
   ============================================================================ */

/* ── Design tokens ───────────────────────────────────────────────────────── */
:root {
  /* Core palette */
  --navy:          #0D1B2A;
  --navy-mid:      #162437;
  --navy-light:    #1E3352;
  --crimson:       #B22234;
  --crimson-mid:   #C8293E;
  --crimson-light: #D94050;
  --red-dark:      #8B1A26;

  /* Neutrals */
  --white:      #FFFFFF;
  --off-white:  #F4F1EB;
  --cream:      #EDE8DC;
  --star-white: #F0EDE5;

  /* Text */
  --text-dark:  #1A2535;
  --text-mid:   #4A5568;
  --text-muted: #7A8899;

  /* Agency colors (map pins & badges) */
  --agency-nps:   #B22234;
  --agency-usfs:  #4CAF50;
  --agency-fws:   #4a7ab0;
  --agency-blm:   #E8742A;
  --agency-bor:   #1E3352;
  --agency-usace: #6B5B35;

  /* Greens (pass-accepted / verified states) */
  --green-dark:  #1E5C32;
  --green-mid:   #2E6B44;
  --green-light: #4CAF50;

  /* Layout metrics */
  --nav-h:     60px;
  --banner-h:  42px;

  /* Fonts */
  --font-display: 'Libre Baskerville', Georgia, serif;
  --font-ui:      'Oswald', 'Arial Narrow', sans-serif;
  --font-body:    'Source Sans 3', system-ui, sans-serif;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--off-white);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: inherit; }
button { font-family: inherit; }

/* Shared star-dot texture (optional decorative background). */
.star-pattern {
  background-image: radial-gradient(circle, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* Skip link for keyboard/screen-reader users. */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--crimson); color: #fff; padding: 10px 18px;
  font-family: var(--font-ui); letter-spacing: 0.1em; text-transform: uppercase; font-size: 13px;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ============================================================================
   INDEPENDENCE BANNER (required above nav on every page — §9)
   ============================================================================ */
.atb-independence-banner {
  background: var(--navy);
  border-left: 4px solid var(--crimson);
  min-height: var(--banner-h);
  display: flex; align-items: center;
}
.atb-independence-banner__inner {
  width: 100%;
  display: flex; align-items: center; gap: 12px;
  padding: 7px 24px;
  font-family: var(--font-ui);
  font-weight: 600; font-size: 13px;
  color: rgba(255,255,255,0.7);
}
.atb-independence-banner__star { color: var(--crimson); font-size: 13px; flex-shrink: 0; }
.atb-independence-banner__text { flex: 1; line-height: 1.4; font-weight: 400; }
.atb-independence-banner__text strong {
  color: #fff; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; font-size: 12px;
}
.atb-independence-banner__link {
  flex-shrink: 0; text-decoration: none;
  color: rgba(255,120,140,0.95);
  letter-spacing: 0.1em; text-transform: uppercase; font-size: 12px; font-weight: 600;
  transition: color 0.2s;
}
.atb-independence-banner__link:hover { color: #fff; }

/* ============================================================================
   SITE HEADER (banner + nav, sticky as one unit)
   ============================================================================ */
.site-header { position: sticky; top: 0; z-index: 100; }

nav.site-nav {
  height: var(--nav-h);
  display: flex; align-items: stretch;
  background: var(--navy);
  border-bottom: 3px solid var(--crimson);
}
.nav-flag-stripe {
  width: 6px; flex-shrink: 0;
  background: repeating-linear-gradient(180deg,
    var(--crimson) 0px, var(--crimson) 10px, var(--navy) 10px, var(--navy) 20px);
  opacity: 0.6;
}
.nav-inner {
  flex: 1; display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo-emblem {
  width: 32px; height: 32px; flex-shrink: 0;
  background: var(--crimson);
  clip-path: polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: var(--white);
}
.nav-logo-words { line-height: 1.2; }
.nav-logo-main {
  font-family: var(--font-ui); font-weight: 700; font-size: 14px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--white);
}
.nav-logo-sub {
  font-family: var(--font-ui); font-weight: 400; font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.45);
}
.nav-links { display: flex; align-items: center; gap: 24px; list-style: none; }
.nav-links a {
  font-family: var(--font-ui); font-weight: 500; font-size: 12px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.65); text-decoration: none; transition: color 0.2s;
}
.nav-links a:hover { color: #fff; }
.nav-links a.active {
  color: #fff; border-bottom: 2px solid var(--crimson); padding-bottom: 2px;
}
.nav-cta {
  background: var(--crimson) !important; color: var(--white) !important;
  padding: 8px 18px; border-radius: 2px; font-weight: 600 !important;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--crimson-light) !important; }

/* Mobile nav toggle (hidden on desktop). */
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  color: #fff; font-size: 22px; padding: 6px;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn-crimson {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--crimson); color: var(--white);
  font-family: var(--font-ui); font-weight: 600; font-size: 14px;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 15px 30px; border-radius: 2px;
  text-decoration: none; border: 2px solid var(--crimson);
  cursor: pointer; transition: background 0.2s, border-color 0.2s;
}
.btn-crimson:hover { background: var(--crimson-light); border-color: var(--crimson-light); }

.btn-white-outline {
  display: inline-flex; align-items: center; gap: 10px;
  background: transparent; color: var(--white);
  font-family: var(--font-ui); font-weight: 600; font-size: 14px;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 15px 30px; border-radius: 2px;
  text-decoration: none; border: 2px solid rgba(255,255,255,0.35);
  cursor: pointer; transition: border-color 0.2s, background 0.2s;
}
.btn-white-outline:hover { border-color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.07); }

/* Below-CTA legal note for purchase links (§9). */
.cta-note {
  display: block; margin-top: 8px;
  font-size: 11px; color: var(--text-muted);
}

/* ============================================================================
   SECTION LABEL (eyebrow) — ★ + fading rule
   ============================================================================ */
.section-label {
  font-family: var(--font-ui); font-size: 11px; font-weight: 600;
  letter-spacing: 0.26em; text-transform: uppercase; color: var(--crimson);
  margin-bottom: 14px; display: flex; align-items: center; gap: 10px;
}
.section-label::before { content: '★'; font-size: 10px; }

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 48px); font-weight: 700;
  color: var(--navy); line-height: 1.15; margin-bottom: 18px;
}

/* ============================================================================
   AGENCY BADGE — flat, uppercase, agency-colored (WPA feel, no radius)
   ============================================================================ */
.agency-badge {
  display: inline-block; background: var(--crimson);
  padding: 3px 10px;
  font-family: var(--font-ui); font-size: 10px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--white);
}

/* ============================================================================
   FLAG STRIPE DIVIDER — crimson / white / navy repeat
   ============================================================================ */
.flag-divider {
  height: 5px;
  background: repeating-linear-gradient(90deg,
    var(--crimson) 0px, var(--crimson) 40px,
    var(--white) 40px, var(--white) 46px,
    var(--navy-light) 46px, var(--navy-light) 86px,
    var(--white) 86px, var(--white) 92px);
  opacity: 0.45;
}

/* ============================================================================
   AD BAND (AdSense placeholder styling)
   ============================================================================ */
.ad-band {
  background: rgba(255,255,255,0.03); border: 1px dashed rgba(255,255,255,0.1);
  border-radius: 2px; padding: 10px; text-align: center;
  color: rgba(255,255,255,0.18); font-size: 11px;
  font-family: var(--font-ui); letter-spacing: 0.1em;
  max-width: 1280px; margin: 0 auto 40px;
}

/* ============================================================================
   FOOTER (shared across all pages)
   ============================================================================ */
footer.site-footer {
  background: var(--navy);
  border-top: 4px solid var(--crimson);
  padding: 64px 80px 36px;
}
.footer-stripe {
  height: 4px; margin-bottom: 56px; max-width: 1280px; margin-left: auto; margin-right: auto;
  background: repeating-linear-gradient(90deg,
    var(--crimson) 0px, var(--crimson) 50px,
    var(--white) 50px, var(--white) 56px,
    var(--navy-light) 56px, var(--navy-light) 106px,
    var(--white) 106px, var(--white) 112px);
  opacity: 0.4;
}
.footer-grid {
  max-width: 1280px; margin: 0 auto 48px;
  display: grid; grid-template-columns: 280px 1fr 1fr 1fr; gap: 56px;
}
.footer-brand-name {
  font-family: var(--font-display); font-size: 18px; font-weight: 700;
  color: var(--white); margin-bottom: 12px;
}
.footer-brand-desc { font-size: 13px; color: rgba(255,255,255,0.4); line-height: 1.7; font-weight: 300; }
.footer-brand-disc {
  font-size: 11px; color: rgba(255,255,255,0.28); margin-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.07); padding-top: 16px; line-height: 1.6;
}
.footer-col-title {
  font-family: var(--font-ui); font-size: 10px; font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase; color: var(--crimson); margin-bottom: 18px;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 9px; }
.footer-links a {
  font-size: 13px; color: rgba(255,255,255,0.45); text-decoration: none;
  transition: color 0.2s; font-weight: 300;
}
.footer-links a:hover { color: rgba(255,255,255,0.8); }
.footer-bottom {
  max-width: 1280px; margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.07); padding-top: 28px;
  display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap;
}
.footer-bottom-text { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer-bottom-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-bottom-links a { font-size: 12px; color: rgba(255,255,255,0.3); text-decoration: none; }
.footer-bottom-links a:hover { color: rgba(255,255,255,0.6); }

/* ============================================================================
   CONTENT STUB (shown by layout.php before a page template exists)
   ============================================================================ */
.content-stub {
  max-width: 720px; margin: 0 auto; padding: 120px 40px; text-align: center;
}
.content-stub h1 { font-family: var(--font-display); font-size: 34px; color: var(--navy); margin-bottom: 16px; }
.content-stub p { color: var(--text-mid); font-weight: 300; }
.content-stub code { background: rgba(13,27,42,0.06); padding: 2px 6px; border-radius: 2px; font-size: 14px; }

/* ============================================================================
   RESPONSIVE — shared breakpoints for header/footer
   ============================================================================ */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  footer.site-footer { padding: 48px 32px 28px; }
}
@media (max-width: 780px) {
  .nav-inner { padding: 0 20px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--navy); border-bottom: 3px solid var(--crimson);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-top: 1px solid rgba(255,255,255,0.06); }
  .nav-links a { display: block; padding: 14px 20px; }
  .nav-links a.active { border-bottom: none; border-left: 3px solid var(--crimson); }
  .nav-cta { border-radius: 0; }
  .atb-independence-banner__inner { flex-wrap: wrap; padding: 8px 16px; font-size: 12px; }
  .atb-independence-banner__link { width: 100%; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}