:root {
  --bg: #0d0d0d;
  --card: #161616;
  --accent: #a855f7;
  --accent2: #7c3aed;
  --text: #f0f0f0;
  --muted: #aaa;
  --border: #2a2a2a;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--text); font-family: 'Segoe UI', sans-serif; scroll-behavior: smooth; }

/* Site navbar only (admin has its own nav styles in admin.css) */
.site-nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 16px 40px;
  background: rgba(13,13,13,0.9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { font-size: 1.4rem; font-weight: 700; color: var(--accent); letter-spacing: 1px; text-decoration: none; }
.site-nav .logo { grid-column: 2; justify-self: center; }
.nav-pages { grid-column: 1; justify-self: start; display: flex; gap: 24px; align-items: center; }
.nav-actions { grid-column: 3; justify-self: end; display: flex; gap: 16px; align-items: center; }
.nav-pages a { color: var(--muted); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
.nav-pages a:hover, .nav-pages a.active { color: var(--accent); }
.login-btn {
  background: transparent; border: 1px solid var(--accent);
  color: var(--accent); padding: 6px 16px; border-radius: 20px;
  text-decoration: none; font-size: 0.85rem; transition: all 0.2s; cursor: pointer; display: inline-block;
}
.login-btn:hover { background: var(--accent); color: #fff; }
.login-btn.active { color: var(--accent); border-color: var(--accent); }
.lang-btn {
  background: var(--card); border: 1px solid var(--accent);
  color: var(--accent); padding: 6px 16px; border-radius: 20px;
  cursor: pointer; font-size: 0.85rem; transition: all 0.2s;
}
.lang-btn:hover { background: var(--accent); color: #fff; }
.theme-btn {
  background: var(--card); border: 1px solid var(--border);
  color: var(--muted); padding: 6px 16px; border-radius: 20px;
  cursor: pointer; font-size: 0.85rem; transition: all 0.2s;
}
.theme-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Top nav link hover underline (per-link, only on hover) */
.nav-pages a {
  position: relative;
  padding-bottom: 4px;
}
.nav-pages a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -20px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 0.2s ease-out;
}
.nav-pages a:hover::after {
  width: 100%;
}

.btn-primary {
  background: var(--accent); color: #fff; padding: 14px 32px;
  border-radius: 8px; font-weight: 700; text-decoration: none; font-size: 0.95rem;
  transition: opacity 0.2s; border: none; cursor: pointer; display: inline-block;
}
.btn-primary:hover { opacity: 0.85; }
.btn-outline {
  background: transparent; color: var(--accent); padding: 14px 32px;
  border-radius: 8px; font-weight: 700; text-decoration: none; font-size: 0.95rem;
  border: 1px solid var(--accent); transition: all 0.2s; cursor: pointer; display: inline-block;
}
.btn-outline:hover { background: rgba(168,85,247,0.12); }
.btn-full { width: 100%; text-align: center; }

.section-label { color: var(--accent); font-size: 0.8rem; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 12px; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; margin-bottom: 16px; }
.section-sub { color: var(--muted); font-size: 1rem; max-width: 540px; line-height: 1.7; margin-bottom: 48px; }

footer {
  border-top: 1px solid var(--border); padding: 40px 20px;
  text-align: center; color: var(--muted); font-size: 0.85rem; margin-top: 60px;
}
footer .footer-logo { font-size: 1.2rem; font-weight: 700; color: var(--accent); margin-bottom: 10px; }

/* Light theme (white background) */
body.theme-light {
  --bg: #ffffff;
  --card: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --border: #e5e7eb;
}
body.theme-light .site-nav {
  background: rgba(255,255,255,0.85);
}

@media (max-width: 768px) {
  .site-nav { padding: 14px 16px; }
  .nav-pages a { font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .site-nav {
    padding: 12px 12px;
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .site-nav .logo { grid-column: 1; justify-self: center; }
  .nav-pages { grid-column: 1; justify-self: center; }
  .nav-actions { grid-column: 1; justify-self: center; }
  .logo { font-size: 1.15rem; }
  .nav-pages { gap: 12px; flex-wrap: wrap; justify-content: center; }
  .nav-actions { gap: 12px; flex-wrap: wrap; justify-content: center; }
  .lang-btn,
  .theme-btn,
  .login-btn { padding: 6px 12px; }
}