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

:root {
  --bg-primary:    #0f0f1a;
  --bg-secondary:  #1a1a2e;
  --bg-tertiary:   #16213e;
  --bg-card:       #1e1e32;
  --border:        #2a2a4a;
  --text-primary:  #e8e8f0;
  --text-secondary:#9090b0;
  --accent:        #4a9eff;
  --accent-hover:  #6ab4ff;
  --danger:        #ff4a4a;
  --success:       #4aff88;
  --warning:       #ffa500;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow: 0 4px 20px rgba(0,0,0,0.4);
}

html { font-size: 16px; }
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ─── Navigation ─── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15,15,26,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 40px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-logo-icon { height: 36px; width: auto; }
.nav-logo-text { height: 20px; width: auto; filter: brightness(0) invert(1); opacity: 0.9; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  color: var(--text-secondary); font-size: 14px; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); }

/* ─── Buttons ─── */
.btn-primary {
  display: inline-block;
  background: var(--accent); color: #fff;
  padding: 13px 26px; border-radius: var(--radius);
  font-size: 15px; font-weight: 700; border: none; cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(74,158,255,0.3);
}
.btn-primary:hover {
  background: var(--accent-hover); color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(74,158,255,0.4);
}
.btn-secondary {
  display: inline-block;
  background: transparent; color: var(--text-secondary);
  padding: 13px 26px; border-radius: var(--radius);
  font-size: 15px; font-weight: 600;
  text-decoration: none; border: 1px solid var(--border); cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--text-primary); }
.btn-nav,
.nav-links a.btn-nav {
  display: inline-block;
  background: var(--accent); color: #fff;
  padding: 8px 20px; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; text-decoration: none;
  transition: background 0.2s;
}
.btn-nav:hover,
.nav-links a.btn-nav:hover { background: var(--accent-hover); color: #fff; }

/* ─── Footer ─── */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 28px 40px;
  text-align: center;
  color: var(--text-secondary); font-size: 13px;
}
.footer-links {
  display: flex; gap: 20px; justify-content: center; margin-top: 8px;
}
.footer-links a {
  color: var(--text-secondary); font-size: 13px;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }

/* ─── Legal pages ─── */
.legal-wrap { max-width: 760px; margin: 0 auto; padding: 60px 40px 100px; }
.legal-wrap h1 { font-size: 36px; font-weight: 900; margin-bottom: 8px; }
.legal-subtitle { color: var(--text-secondary); font-size: 15px; margin-bottom: 48px; }
.legal-wrap h2 {
  font-size: 13px; font-weight: 700; color: var(--accent);
  text-transform: uppercase; letter-spacing: 1px;
  margin: 36px 0 10px;
}
.legal-wrap p { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin-bottom: 8px; }
.legal-divider { border: none; border-top: 1px solid var(--border); margin: 48px 0; }
.nav-back { color: var(--text-secondary); font-size: 14px; transition: color 0.2s; }
.nav-back:hover { color: var(--accent); }

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .site-nav { padding: 0 20px; }
  .nav-links { gap: 14px; }
  .nav-links .nav-link-item { display: none; }
  .nav-links a.nav-link-item[href="/doku"] { display: inline-block; }
  .site-footer { padding: 24px 20px; }
  .legal-wrap { padding: 40px 20px 80px; }
}