/* =============================================
   RUTGON – layout.css
   Navbar, Footer, Canvas, Scroll-Top, Containers
   ============================================= */

/* ---------- CANVAS BACKGROUND ---------- */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.navbar.scrolled {
  background: var(--navbar-scrolled-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 22px;
  background: var(--icon-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 10px rgba(251, 191, 36, 0.4));
  display: inline-flex;
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.logo-dot { color: var(--accent-1); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.nav-link {
  padding: 8px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: color var(--dur), background var(--dur);
}
.nav-link:hover {
  color: var(--text-primary);
  background: var(--ghost-bg);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--dur) var(--ease);
}

/* ---------- FOOTER ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 56px;
  margin-bottom: 64px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin: 16px 0 24px;
  max-width: 280px;
}

.social-links {
  display: flex;
  gap: 10px;
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--dur);
}

.social-link:hover {
  background: rgba(99,102,241,0.15);
  border-color: var(--border-hover);
  color: var(--accent-1);
  transform: translateY(-2px);
}

.social-link:hover .fa-facebook-f { color: #1877f2; }
.social-link:hover .fa-x-twitter  { color: #000; }
.social-link:hover .fa-youtube     { color: #ff0000; }
.social-link:hover .fa-message     { color: #0084ff; }

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 12px;
  transition: color var(--dur);
}

.footer-col a:hover { color: var(--text-primary); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- SCROLL TO TOP ---------- */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--gradient-button);
  color: #fff;
  font-size: 20px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(99,102,241,0.4);
  z-index: 999;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--dur) var(--ease);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.show {
  opacity: 1;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(99,102,241,0.55);
}

/* ---------- LIGHT THEME LAYOUT OVERRIDES ---------- */
[data-theme="light"] .footer {
  border-top-color: rgba(99,102,241,0.15);
  background: var(--bg-surface);
}

[data-theme="light"] .footer-bottom {
  border-top-color: rgba(99,102,241,0.15);
}

[data-theme="light"] .social-link {
  background: var(--bg-card);
  border-color: var(--border);
}

[data-theme="light"] .social-link:hover .fa-x-twitter { color: #000; }

[data-theme="light"] .nav-links.open {
  background: rgba(245,247,255,0.97);
}