/* ============================================================
   TOPBAR · MOBİL HAMBURGER + DRAWER
   Desktop'ta gizli, ≤1024px'te aktif.
   Mevcut sayfa CSS'inin SONRA yüklenir → cascade ile override.
   ============================================================ */

/* Hamburger buton — desktop'ta gizli */
.topbar-hamburger {
  display: none;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 0;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 6px;
  transition: background 0.15s ease, border-color 0.15s ease;
  position: relative;
  z-index: 110;
  justify-self: end;
}

.topbar-hamburger:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.10);
}

.topbar-hamburger:focus-visible {
  outline: 2px solid var(--p400, #9b8cf0);
  outline-offset: 2px;
}

.topbar-hamburger .hamburger-line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--t1, #e8e8ed);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease, background 0.2s ease;
  transform-origin: center;
}

/* Drawer arka plan scrim — desktop'ta gizli */
.topbar-scrim {
  display: none;
}

/* Drawer içi CTA — desktop'ta gizli */
.topbar-nav-cta {
  display: none;
}

/* ============================================================
   MOBİL: ≤1024px
   ============================================================ */
@media (max-width: 1024px) {

  /* Topbar grid sadeleştirildi: brand | hamburger */
  .topbar-inner {
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding: 14px 20px;
  }

  /* Hamburger butonu artık görünür */
  .topbar-hamburger {
    display: flex;
  }

  /* Topbar'daki "Bizimle Tanışın" CTA mobil/tablette gizli — drawer'da var */
  .topbar-inner > .topbar-cta {
    display: none;
  }

  /* Hamburger → X dönüşümü */
  body.nav-open .topbar-hamburger {
    background: rgba(255, 255, 255, 0.06);
  }
  body.nav-open .topbar-hamburger .hamburger-line:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }
  body.nav-open .topbar-hamburger .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  body.nav-open .topbar-hamburger .hamburger-line:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  /* Sayfa scroll'u kilitle */
  body.nav-open {
    overflow: hidden;
  }

  /* Drawer arka planı (scrim) — vw/dvh viewport-relative */
  body.nav-open .topbar-scrim {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(2px);
    z-index: 90;
    animation: topbar-scrim-in 0.22s ease;
  }
  @keyframes topbar-scrim-in {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  /* Topbar'ın backdrop-filter'ı, child position:fixed'in containing block'ını
     topbar'a sıkıştırıyordu — drawer açıkken devre dışı bırak. */
  body.nav-open .topbar {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  /* Nav drawer — tam ekran overlay, topbar'ın ALTINDA z-index olarak.
     Containing block sorununa karşı vw/dvh (viewport units) kullanılıyor. */
  body.nav-open .topbar-nav {
    display: flex !important;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;            /* fallback */
    height: 100dvh;           /* mobil tarayıcıların toolbar collapse'ını handle eder */
    background: var(--deep, #0f0f12);
    padding: 88px 20px 32px;
    flex-direction: column;
    overflow-y: auto;
    z-index: 95;
    gap: 0;
    align-items: stretch;
    text-transform: none;
    font-size: 14px;
    letter-spacing: 0;
    animation: topbar-drawer-in 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  }
  @keyframes topbar-drawer-in {
    from { transform: translateY(-12px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }

  /* Drawer'daki her nav-item tam genişlik + alt çizgi */
  body.nav-open .topbar-nav > .nav-item {
    width: 100%;
    padding: 0;
    border-bottom: 1px solid var(--rim, rgba(255, 255, 255, 0.06));
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  body.nav-open .topbar-nav > .nav-item:first-of-type {
    border-top: 1px solid var(--rim, rgba(255, 255, 255, 0.06));
  }

  body.nav-open .topbar-nav > .nav-item .nav-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--t1, #e8e8ed);
    font-family: var(--ff-mono, ui-monospace, monospace);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    padding: 20px 4px;
    cursor: pointer;
  }

  body.nav-open .topbar-nav > .nav-item .nav-trigger .caret {
    font-size: 14px;
    color: var(--t3, #5a5a65);
    transition: transform 0.25s ease, color 0.2s ease;
  }

  /* Dropdown'lar floating popup yerine inline expand */
  body.nav-open .topbar-nav .nav-dropdown {
    position: static !important;
    transform: none !important;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    max-height: 0;
    overflow: hidden;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    min-width: 0;
    margin: 0;
    transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.25s ease;
  }

  body.nav-open .topbar-nav .nav-dropdown::before,
  body.nav-open .topbar-nav .nav-dropdown::after {
    display: none;
  }

  body.nav-open .topbar-nav > .nav-item.open .nav-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    max-height: 900px;
    padding: 4px 0 16px;
  }

  body.nav-open .topbar-nav > .nav-item.open .nav-trigger .caret {
    transform: rotate(180deg);
    color: var(--p400, #9b8cf0);
  }

  /* Dropdown item'ları drawer'da daha kompakt */
  body.nav-open .topbar-nav .dropdown-item {
    padding: 12px 10px;
    gap: 14px;
    border-radius: 6px;
  }

  body.nav-open .topbar-nav .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.04);
  }

  body.nav-open .topbar-nav .dropdown-item .num {
    flex-shrink: 0;
  }

  body.nav-open .topbar-nav .dropdown-item .info .name {
    font-size: 13px;
    color: var(--t1, #e8e8ed);
  }

  body.nav-open .topbar-nav .dropdown-item .info .desc {
    font-size: 11px;
    color: var(--t2, #8a8a96);
    line-height: 1.45;
  }

  body.nav-open .topbar-nav .dropdown-divider {
    margin: 8px 4px;
    height: 1px;
    background: var(--rim, rgba(255, 255, 255, 0.06));
  }

  /* Drawer içindeki CTA — en altta görünür */
  body.nav-open .topbar-nav .topbar-nav-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 28px;
    padding: 16px 24px;
    background: var(--p600, #5a4ba0);
    color: #ffffff;
    text-decoration: none;
    border-radius: 6px;
    font-family: var(--ff-mono, ui-monospace, monospace);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    transition: background 0.18s ease, transform 0.12s ease;
  }
  body.nav-open .topbar-nav .topbar-nav-cta:hover {
    background: var(--p500, #7c6fce);
  }
  body.nav-open .topbar-nav .topbar-nav-cta:active {
    transform: scale(0.98);
  }
  body.nav-open .topbar-nav .topbar-nav-cta .arrow {
    font-family: var(--ff, system-ui);
    font-size: 14px;
  }
}