/* site.css — Bendunomics shared styles */
/* Loaded by every page. Defines variables, nav, footer. */

:root {
  --bg: #0a0c0f;
  --bg2: #111418;
  --surface: #161b22;
  --surface2: #1c2128;
  --border: #21262d;
  --border-light: #30363d;
  --gold: #c8922a;
  --gold-bright: #e8a838;
  --gold-dim: #7a5518;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --text-dimmer: #484f58;
  --danger: #f85149;
  --blue-a: #58a6ff;
  --blue-b: #3fb950;
  --radius: 10px;
  --font-serif: 'Iowan Old Style', 'Palatino Linotype', 'URW Palladio L', P052, Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* SHARED NAV */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
  background: rgba(10,12,15,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-nav-logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-nav-logo span { color: var(--gold-bright); }

.site-nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
  margin-left: auto;
}

.site-nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.site-nav-links a:hover { color: var(--text); }

/* LANGUAGE TOGGLE */
.lang-toggle {
  display: flex;
  gap: 2px;
  background: var(--border);
  border-radius: 6px;
  padding: 2px;
}
.lang-toggle button {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-dimmer);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.lang-toggle button:hover { color: var(--text-dim); }
.lang-toggle button.active {
  background: var(--surface2);
  color: var(--text);
}

/* SHARED FOOTER */
.site-footer {
  padding: 40px;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  border-top: 1px solid var(--border);
}

.site-footer-logo {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dimmer);
  text-decoration: none;
}

.site-footer-logo span { color: var(--gold-dim); }
.site-footer-copy { font-size: 12px; color: var(--text-dimmer); }

@media (max-width: 768px) {
  .site-nav { padding: 0 20px; }
  .site-footer { padding: 32px 20px; }
}

@media (max-width: 500px) {
  .site-nav-links { display: none; }
  .lang-toggle { margin-left: auto; }
}