/* ============================================================
   GLOBAL.CSS — Reset, variables, typography, header, footer
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --color-primary:       #0A1628;
  --color-primary-light: #1E3A5F;
  --color-accent:        #F59E0B;
  --color-accent-hover:  #D97706;
  --color-text:          #1A202C;
  --color-text-muted:    #6B7280;
  --color-bg:            #FFFFFF;
  --color-surface:       #F8FAFC;
  --color-border:        #E2E8F0;
  --color-success:       #059669;

  --max-width: 1140px;
  --radius:    8px;
  --radius-sm: 4px;

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --shadow-sm: 0 1px 3px rgba(10,22,40,.08), 0 1px 2px rgba(10,22,40,.06);
  --shadow-md: 0 4px 12px rgba(10,22,40,.10), 0 2px 6px rgba(10,22,40,.06);
  --shadow-lg: 0 10px 30px rgba(10,22,40,.12), 0 4px 10px rgba(10,22,40,.08);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-main);
  font-size: 17px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--color-primary-light); text-decoration: underline; }
a:hover { color: var(--color-accent-hover); }

ul, ol { padding-left: 1.5rem; }
li { margin-bottom: .25rem; }

/* ── Container ─────────────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Skip link ─────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -999px;
  left: 1rem;
  background: var(--color-accent);
  color: var(--color-primary);
  padding: .5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
}
.skip-link:focus { top: 1rem; }

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow-md); }

.site-header .container {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo */
.site-logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.site-logo__img { height: 40px; width: auto; }

/* Nav */
.site-nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 2rem;
}
.site-nav a {
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-size: .9375rem;
  font-weight: 500;
  transition: color .15s ease;
}
.site-nav a:hover,
.site-nav a.active { color: var(--color-accent); }

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
  color: #fff;
  flex-shrink: 0;
}
.nav-toggle svg { width: 24px; height: 24px; stroke: currentColor; }

/* Mobile nav */
@media (max-width: 767px) {
  .nav-toggle { display: flex; align-items: center; justify-content: center; }

  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--color-primary-light);
    padding: 1rem 1.25rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav li { border-bottom: 1px solid rgba(255,255,255,.08); }
  .site-nav a { display: block; padding: .75rem 0; font-size: 1rem; }
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,.65);
  font-size: .875rem;
  margin-top: 4rem;
  padding: 2.5rem 0;
}
.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.site-footer__disclaimer {
  font-size: .8125rem;
  line-height: 1.6;
  color: rgba(255,255,255,.45);
  max-width: 72ch;
}
.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.25rem;
}
.site-footer__nav a {
  color: rgba(255,255,255,.65);
  text-decoration: none;
  transition: color .15s;
}
.site-footer__nav a:hover { color: var(--color-accent); }
.site-footer__copy { color: rgba(255,255,255,.4); }

@media (min-width: 768px) {
  .site-footer .container {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
  .site-footer__right { text-align: right; }
}

/* ── Inline SVG icons ───────────────────────────────────────── */
.inline-icon {
  display: inline-block;
  vertical-align: middle;
  width: 1.1em;
  height: 1.1em;
  margin-right: .3em;
  flex-shrink: 0;
}

/* ── Utility ────────────────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}