/* ===== HAVARAPOR — NAV.CSS ===== */
/* Tüm sayfalarda ortak kullanılan header/navigasyon stilleri */

/* ── Değişkenler (sayfada tanımlı :root ile uyumlu) ── */
:root {
  --primary: #0e75a5;
  --secondary: #28325b;
  --bg: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
  --text: #334155;
  --dark-bg: #1e293b;
}

/* ── Site Header ── */
.site-header {
  background: var(--white);
  border-bottom: 2px solid var(--border);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ── Logo ── */
.site-logo img {
  height: 38px;
  display: block;
}

/* ── Masaüstü Navigasyon ── */
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--secondary);
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.18s, color 0.18s;
}

.main-nav a:hover,
.main-nav a.active {
  background: var(--primary);
  color: #fff;
}

/* ── Hamburger Butonu (sadece mobilde görünür) ── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 8px;
  transition: background 0.18s;
}

.hamburger:hover { background: var(--bg); }

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s, width 0.3s;
  transform-origin: center;
}

/* Hamburger → X animasyonu */
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; width: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobil Menü Paneli ── */
.mobile-menu {
  display: none; /* JS ile açılır */
  position: absolute;
  top: 58px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 2px solid var(--border);
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  z-index: 999;
  padding: 12px 16px 16px;
  animation: slideDown 0.22s ease;
}

.mobile-menu.open { display: block; }

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.mobile-menu a {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background 0.16s, color 0.16s;
  border-bottom: 1px solid var(--border);
}

.mobile-menu a:last-child { border-bottom: none; }

.mobile-menu a:hover,
.mobile-menu a.active {
  background: var(--primary);
  color: #fff;
}

/* ── Responsive: ≤768px → hamburger aktif ── */
@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
}

/* ── Responsive: büyük ekran → mobil menü gizli ── */
@media (min-width: 769px) {
  .mobile-menu { display: none !important; }
}