/* ==========================================================================
   NAVBAR.CSS
   Adım 3/4 — Ultra Modern Responsive Navigasyon
   --------------------------------------------------------------------------
   Yapı:
   1. .navbar__top    → Logo, Arama Barı, Tema Anahtarı, Hamburger
   2. .navbar__categories → Masaüstünde görünen kategori şeridi + mega-menü
   3. .mobile-menu     → Mobilde hamburger ile açılan tam ekran panel
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. NAVBAR KONTEYNER
   Sayfa kaydırıldığında sticky kalır, hafif bir "cam" (glass) efekti ve
   gölge kazanır — premium "derinlik" hissi.
   -------------------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-navbar);
  background-color: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--duration-base) var(--ease-fluid),
              background-color var(--duration-base) var(--ease-fluid);
}

/* JS ile scroll'da eklenecek class: hafif saydamlık + blur + gölge */
.navbar.is-scrolled {
  background-color: color-mix(in srgb, var(--color-bg-elevated) 85%, transparent);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  box-shadow: var(--shadow-md);
}

.navbar__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 76px;
  min-width: 0;
}

/* --------------------------------------------------------------------------
   2. LOGO
   Fraunces ile basılı gazete manşeti hissi; üzerine gelince altın alt
   çizgi yumuşak şekilde belirir.
   -------------------------------------------------------------------------- */
.navbar__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--color-text-primary);
}

.navbar__logo-accent {
  color: var(--color-accent-press);
  font-style: italic;
}

/* Görsel logo (Gündem Saati) */
.navbar__logo-img {
  height: 56px;
  width: auto;
  display: block;
}

/* --------------------------------------------------------------------------
   3. ARAMA BARI
   Genişleyen, odaklanınca yumuşak glow veren premium input.
   -------------------------------------------------------------------------- */
.navbar__search {
  flex: 1 1 auto;
  max-width: 560px;
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
  width: 100%;
}

.navbar__search-icon {
  position: absolute;
  left: var(--space-4);
  width: 18px;
  height: 18px;
  stroke: var(--color-text-tertiary);
  fill: none;
  stroke-width: 2;
  pointer-events: none;
  transition: stroke var(--duration-fast) var(--ease-fluid);
}

.navbar__search-input {
  width: 100%;
  min-width: 0;
  height: 44px;
  padding-left: calc(var(--space-4) + 18px + var(--space-3));
  padding-right: var(--space-4);
  background-color: var(--color-bg-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  transition: border-color var(--duration-base) var(--ease-fluid),
              background-color var(--duration-base) var(--ease-fluid),
              box-shadow var(--duration-base) var(--ease-fluid);
}

.navbar__search-input::placeholder {
  color: var(--color-text-tertiary);
}

.navbar__search-input:focus {
  background-color: var(--color-bg-elevated);
  border-color: var(--color-accent-press);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent-press) 12%, transparent);
}

.navbar__search-input:focus ~ .navbar__search-icon,
.navbar__search:focus-within .navbar__search-icon {
  stroke: var(--color-accent-press);
}

/* --------------------------------------------------------------------------
   4. SAĞ AKSİYONLAR (Tema Anahtarı + Hamburger)
   -------------------------------------------------------------------------- */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ---- Tema Anahtarı: Güneş/Ay ikonu arasında zarif crossfade + rotate ---- */
.theme-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-subtle);
  transition: background-color var(--duration-fast) var(--ease-fluid),
              transform var(--duration-fast) var(--ease-spring);
}

.theme-toggle:hover {
  transform: scale(1.06);
  background-color: var(--color-bg-subtle);
}

.theme-toggle:active {
  transform: scale(0.94);
}

.theme-toggle svg {
  position: absolute;
  width: 20px;
  height: 20px;
  stroke: var(--color-text-primary);
  fill: none;
  stroke-width: 2;
  transition: opacity var(--duration-base) var(--ease-fluid),
              transform var(--duration-slow) var(--ease-spring);
}

.theme-toggle__sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}
.theme-toggle__moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

[data-theme="dark"] .theme-toggle__sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}
[data-theme="dark"] .theme-toggle__moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* ---- Hamburger Butonu (sadece mobil/tablet) ---- */
.navbar__hamburger {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: var(--radius-md);
}

.navbar__hamburger:hover {
  background-color: var(--color-bg-subtle);
}

.navbar__hamburger span {
  width: 22px;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-fluid),
              opacity var(--duration-base) var(--ease-fluid);
}

/* Hamburger → X animasyonu (JS .is-active class'ı navbar__hamburger'a eklenir) */
.navbar__hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   5. KATEGORİ ŞERİDİ (Masaüstü)
   Her kategori kendi rengini hover'da "alt çizgi + metin rengi" olarak
   gösterir — var(--cat-*) token'ları kullanılır.
   -------------------------------------------------------------------------- */
.navbar__categories {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  height: 52px;
  border-top: 1px solid var(--color-border);
}

.nav-cat {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding-inline: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-fluid);
}

/* Alt çizgi — kategoriye özel renk, scaleX ile soldan sağa açılır */
.nav-cat::after {
  content: '';
  position: absolute;
  left: var(--space-4);
  right: var(--space-4);
  bottom: 0;
  height: 2px;
  background-color: var(--cat-color, var(--color-accent-press));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.nav-cat:hover {
  color: var(--cat-color, var(--color-accent-press));
}

.nav-cat:hover::after,
.nav-cat.is-open::after {
  transform: scaleX(1);
}

.nav-cat__chevron {
  width: 13px;
  height: 13px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.2;
  transition: transform var(--duration-base) var(--ease-fluid);
}

.nav-cat.is-open .nav-cat__chevron {
  transform: rotate(180deg);
}

/* --------------------------------------------------------------------------
   6. MEGA MENÜ (Dropdown) — Sadece "Güncel" gibi alt-kategorisi olan
   öğelerde açılır. Yumuşak açılış: opacity + translateY + scale.
   -------------------------------------------------------------------------- */
.mega-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  transform: translateY(-8px) scale(0.98);
  width: 560px;
  max-width: 90vw;
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out-expo),
              transform var(--duration-base) var(--ease-out-expo),
              visibility 0s;
}

/* Mega menünün üst kenarında, navbar'a bağlanan zarif bir ok/üçgen */
.mega-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 24px;
  transform: rotate(45deg);
  width: 12px;
  height: 12px;
  background-color: var(--color-bg-elevated);
  border-left: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
  border-radius: 2px;
}

.nav-cat.is-open .mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-1);
}

.mega-menu__link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) var(--ease-fluid),
              transform var(--duration-fast) var(--ease-fluid);
}

.mega-menu__link:hover {
  background-color: var(--color-bg-subtle);
  transform: translateX(4px);
}

.mega-menu__link-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.mega-menu__link-desc {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* Mega menüde öne çıkan "vitrin" haberi (sağ blok yerine alt blok, basit) */
.mega-menu__featured {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.mega-menu__featured img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.mega-menu__featured-tag {
  display: inline-block;
  margin-bottom: 4px;
}

.mega-menu__featured-title {
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-text-primary);
}

/* ==========================================================================
   7. MOBİL MENÜ — Tam Ekran Panel (Refined & Premium)
   Hamburger tıklanınca sağdan kayarak gelen, akıcı ve estetik bir panel.
   ========================================================================== */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: rgba(11, 14, 20, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-fluid),
              visibility 0s;
}

.mobile-menu-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: calc(var(--z-overlay) + 1);
  width: min(390px, 88vw);
  background-color: color-mix(in srgb, var(--color-bg-elevated) 95%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  border-left: 1px solid var(--color-border);
}

.mobile-menu.is-active {
  transform: translateX(0);
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding-inline: var(--space-5);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .mobile-menu__header {
    height: 64px;
    padding-inline: var(--space-4);
  }
}

.mobile-menu__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) var(--ease-fluid),
              color var(--duration-fast) var(--ease-fluid),
              transform var(--duration-fast) var(--ease-fluid);
  color: var(--color-text-primary);
}

.mobile-menu__close:hover,
.mobile-menu__close:active {
  background-color: var(--color-bg-subtle);
  color: var(--color-accent-press);
}

.mobile-menu__close svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  transition: transform var(--duration-fast) var(--ease-fluid);
}

.mobile-menu__close:hover svg {
  transform: rotate(90deg);
}

.mobile-menu__search {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

/* Mobil Arama Kutusu (Çekmeceye özel, navbar absolute styles ile çakışmaz) */
.mobile-menu__search-box {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.mobile-menu__search-box .navbar__search-icon {
  position: absolute;
  left: var(--space-4);
  width: 18px;
  height: 18px;
  stroke: var(--color-text-tertiary);
  fill: none;
  stroke-width: 2;
  pointer-events: none;
}

.mobile-menu__search-box .navbar__search-input {
  width: 100%;
  height: 40px;
  padding-left: calc(var(--space-4) + 18px + var(--space-3));
  padding-right: var(--space-4);
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  opacity: 1 !important;
  pointer-events: auto !important;
  transition: border-color var(--duration-base) var(--ease-fluid),
              box-shadow var(--duration-base) var(--ease-fluid);
}

.mobile-menu__search-box .navbar__search-input:focus {
  background-color: var(--color-bg-elevated);
  border-color: var(--color-accent-press);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent-press) 12%, transparent);
}

/* ---- Mobil Akordeon Kategori Listesi ---- */
.mobile-menu__list {
  padding: var(--space-4) var(--space-4) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-cat {
  margin-bottom: 2px;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity var(--duration-base) var(--ease-out-expo),
              transform var(--duration-base) var(--ease-out-expo);
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* Panel açıldığında JS bu class'ı ekler → stagger efekti */
.mobile-menu.is-active .mobile-cat {
  opacity: 1;
  transform: translateX(0);
}

.mobile-cat__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start; /* Dot ve metin yan yana sola yaslansın */
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) var(--ease-fluid),
              color var(--duration-fast) var(--ease-fluid);
}

.mobile-cat__trigger::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--cat-color, var(--color-accent-press));
  margin-right: var(--space-3);
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--cat-color);
}

.mobile-cat__trigger:hover,
.mobile-cat__trigger:active {
  background-color: var(--color-bg-subtle);
  color: var(--cat-color);
}

.mobile-cat.is-open {
  background-color: rgba(15, 18, 26, 0.015);
}

[data-theme="dark"] .mobile-cat.is-open {
  background-color: rgba(255, 255, 255, 0.015);
}

.mobile-cat.is-open .mobile-cat__trigger {
  color: var(--cat-color);
  background-color: var(--color-bg-subtle);
}

.mobile-cat__trigger-chevron {
  width: 16px;
  height: 16px;
  stroke: var(--color-text-tertiary);
  stroke-width: 2.2;
  fill: none;
  transition: transform var(--duration-base) var(--ease-fluid);
  margin-left: auto;
}

.mobile-cat.is-open .mobile-cat__trigger-chevron {
  transform: rotate(180deg);
  stroke: var(--cat-color);
}

/* Akordeon içerik — grid-template-rows ile yükseklik animasyonu */
.mobile-cat__panel {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows var(--duration-base) var(--ease-fluid);
}

.mobile-cat.is-open .mobile-cat__panel {
  grid-template-rows: 1fr;
}

.mobile-cat__panel-inner {
  min-height: 0;
  padding-left: var(--space-5);
  padding-right: var(--space-2);
  padding-top: var(--space-2);
  padding-bottom: var(--space-3);
  border-left: 2px solid var(--cat-color);
  margin-left: calc(var(--space-4) + 5px); /* Yazıyla hizala */
  margin-top: var(--space-1);
  margin-bottom: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-cat__sublink {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-fluid);
}

.mobile-cat__sublink:hover,
.mobile-cat__sublink:active {
  color: var(--cat-color);
  background-color: var(--color-bg-subtle);
  transform: translateX(4px);
}

.mobile-cat__sublink--all {
  border-bottom: 1px dashed var(--color-border) !important;
  border-radius: 0;
  padding-bottom: var(--space-2) !important;
  margin-bottom: var(--space-2) !important;
}

/* ---- Mobil Menü Alt Bilgi (Footer) ---- */
.mobile-menu__footer {
  margin-top: auto;
  padding: var(--space-5);
  border-top: 1px solid var(--color-border);
  background-color: rgba(15, 18, 26, 0.02);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  flex-shrink: 0;
}

[data-theme="dark"] .mobile-menu__footer {
  background-color: rgba(255, 255, 255, 0.02);
}

.mobile-menu__footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

/* --------------------------------------------------------------------------
   8. RESPONSIVE DAVRANIŞ
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .navbar__categories {
    display: none; /* Masaüstü kategori şeridi tablette gizlenir */
  }
  .navbar__hamburger {
    display: flex;
  }
}

@media (max-width: 768px) {
  .navbar__top {
    height: 64px;
    gap: var(--space-3);
  }
  .navbar__logo {
    font-size: var(--text-lg);
  }
  .navbar__logo-img {
    height: 42px;
  }
  .navbar__search {
    /* Mobilde arama barı ikon olarak küçülür, tıklayınca genişler (JS ile) */
    max-width: 44px;
    transition: max-width var(--duration-base) var(--ease-fluid);
  }
  .navbar__search.is-expanded {
    max-width: 100%;
    position: absolute;
    left: var(--space-4);
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    background-color: var(--color-bg-elevated);
  }
  .navbar__search:not(.is-expanded) .navbar__search-input {
    opacity: 0;
    pointer-events: none;
  }
  .navbar__search:not(.is-expanded) {
    background-color: var(--color-bg-subtle);
    border-radius: 50%;
    width: 44px;
    height: 44px;
  }
  .navbar__search:not(.is-expanded) .navbar__search-icon {
    position: static;
    cursor: pointer;
    pointer-events: auto;
  }
}