/* ═══════════════════════════════════════════
   📐 LAYOUT — Header, Footer
   ═══════════════════════════════════════════ */

/* ─── HEADER ─── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(24, 24, 27, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: var(--z-header);
  transition: all var(--transition-slow);
}

[data-theme="light"] .header {
  background: rgba(255, 255, 255, 0.85);
}

.header.scrolled {
  background: rgba(24, 24, 27, 0.98);
  box-shadow: 0 4px 20px rgba(255, 30, 45, 0.15);
}

[data-theme="light"] .header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-xl);
}

/* ─── LOGO ─── */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--transition);
  flex-shrink: 0;
}

.logo:hover {
  opacity: 0.85;
}

.logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* ─── NAV ─── */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
  transition: color var(--transition);
  position: relative;
  padding: var(--space-sm) 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--neon-red);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-gradient);
  border-radius: 1px;
}

/* ─── HEADER ACTIONS ─── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Tema toggle (SVG destekli) */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-round);
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--neon-red);
  color: var(--neon-red);
  transform: rotate(15deg);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  display: block;
}

/* Mobil menu toggle */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-round);
  background: var(--card);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-primary);
}

/* ─── MAIN CONTENT ─── */
.main-content {
  padding-top: var(--header-height);
  min-height: 100vh;
}

/* ─── MOBİL MENÜ ─── */
.mobile-menu {
  position: fixed;
  top: 0;
  left: -100%;
  width: 300px;
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  z-index: 2000;
  transition: left var(--transition-slow);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-menu.open {
  left: 0;
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  gap: var(--space-xs);
  flex: 1;
}

.mobile-nav-link {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
}

.mobile-nav-link:hover {
  background: var(--card);
  color: var(--neon-red);
}

.mobile-nav-link.primary {
  background: var(--primary-gradient);
  color: white;
  text-align: center;
  margin-top: var(--space-sm);
}

.mobile-nav-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-md) 0;
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.mobile-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* ─── FOOTER ─── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-4xl) 0 var(--space-xl);
  margin-top: var(--space-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand {
  max-width: 280px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: var(--space-lg);
  line-height: 1.6;
}

.footer-column h4 {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-column a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-column a:hover {
  color: var(--neon-red);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-hint);
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 18px;
  transition: all var(--transition);
}

.social-link:hover {
  background: var(--neon-red);
  border-color: var(--neon-red);
  color: white;
  transform: translateY(-2px);
}