/* layout.css — shared sitewide styles */

:root {
  --bg: #0f172a;
  --panel: #111827;
  --text: #f8fafc;
  --muted: #94a3b8;
  --brand: #38bdf8;
  --border: #1f2937;
  --card: #0b1220;
  --focus: #f59e0b;
  --max-w: 1100px;
  --radius: 14px;
  --shadow: 0 10px 25px rgba(0,0,0,.25);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% 0%, #0b1324 0%, var(--bg) 40%, #0a0f1f 100%);
  line-height: 1.6;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.container { width: min(var(--max-w), 92%); margin-inline: auto; }
.hidden { display: none !important; }
.muted { color: var(--muted); }

/* ===== Header & Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(8px);
  background: rgba(9, 12, 20, 0.6);
  border-bottom: 1px solid var(--border);
}

.site-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: .75rem 0;
  flex-wrap: wrap;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: .45rem .7rem;
  border-radius: .6rem;
  cursor: pointer;
}

#nav-links {
  list-style: none;
  padding: 0; margin: 0;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

#nav-links li a {
  display: block;
  padding: .4rem .5rem;
  border-radius: .5rem;
}
#nav-links li a:hover { background: #0d1a2b; text-decoration: none; }
#nav-links li a[aria-current="page"] { font-weight: 700; }

/* Mobile: collapse menu */
@media (max-width: 760px) {
  .site-nav {
    flex-direction: column;
  }
  .menu-toggle { display: inline-flex; margin-bottom: .5rem; }
  #nav-links { display: none; width: 100%; }
  .site-nav.nav-open #nav-links { display: flex; }
}

/* ===== Main Content ===== */
main { display: block; }
section { padding: 3rem 0; }
.hero .container { display: grid; gap: 1.25rem; }
.hero-title { font-size: clamp(1.8rem, 3.4vw, 3rem); line-height: 1.2; margin: 0 0 .3rem; }
.hero-subtitle { color: var(--muted); margin: 0 0 1rem; }

/* ===== Cards ===== */
.cards {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 .25rem; }
.card p { margin: 0; color: var(--muted); }
@media (min-width: 640px){ .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px){ .cards { grid-template-columns: repeat(3, 1fr); } }

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--muted);
  font-size: .95rem;
  text-align: center;
}

/* ===== Misc Utilities ===== */
.fallback-portrait {
  width: 220px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--border);
}

@media (prefers-reduced-motion: reduce){ html { scroll-behavior: auto; } }