@media (max-width: 768px) {
  html.mobile-shell-enabled,
  body.mobile-shell-enabled {
    transform: none !important;
    filter: none !important;
    perspective: none !important;
  }
  :root {
    --mobile-header-height: 56px;
    --mobile-drawer-padding: 32px;
    --mobile-shell-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --mobile-space-1: 8px;
    --mobile-space-2: 16px;
    --mobile-space-3: 24px;
    --mobile-space-4: 32px;
  }
  body {
    padding-top: calc(var(--mobile-header-height) + env(safe-area-inset-top));
  }
  .main-header {
    display: none !important;
  }
  .mobile-header {
    position: fixed;
    inset: 0 0 auto 0;
    top: var(--vv-offset-y, 0px);
    left: var(--vv-offset-x, 0px);
    right: auto;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    padding-top: env(safe-area-inset-top);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    width: var(--vv-width, 100%);
    max-width: 100%;
    margin: 0;
    box-sizing: border-box;
    transform: translateZ(0);
    contain: layout paint;
  }
  .mobile-header::before {
    content: none;
  }
  .mobile-header-inner {
    height: var(--mobile-header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 calc(var(--mobile-space-2) + env(safe-area-inset-right)) 0 calc(var(--mobile-space-2) + env(safe-area-inset-left));
    position: relative;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .mobile-brand {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    font-size: 1.125rem;
    color: #ffffff;
    text-transform: none;
    text-align: center;
    pointer-events: none;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .mobile-brand-logo {
    width: 38px;
    height: 38px;
    object-fit: contain;
    border-radius: 10px;
  }
  .mobile-brand-text {
    display: inline-block;
    font-weight: 700;
  }
  .mobile-hamburger {
    position: absolute;
    right: var(--mobile-space-2);
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 10px;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
    z-index: 2;
  }
  .mobile-hamburger:hover {
    background: rgba(255, 255, 255, 0.12);
  }
  .mobile-hamburger:active {
    transform: translateY(-50%) scale(0.95);
  }
  .hamburger-line {
    width: 20px;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transition: transform 0.3s var(--mobile-shell-ease), opacity 0.25s ease;
  }
  .hamburger-line:nth-child(1) {
    width: 20px;
  }
  .hamburger-line:nth-child(2) {
    width: 16px;
  }
  .hamburger-line:nth-child(3) {
    width: 20px;
  }
  .mobile-overlay {
    position: fixed;
    inset: 0;
    top: var(--vv-offset-y, 0px);
    left: var(--vv-offset-x, 0px);
    right: auto;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    z-index: 10010;
    width: var(--vv-width, 100%);
    height: var(--vv-height, 100dvh);
    max-width: 100%;
  }
  .mobile-drawer {
    position: fixed;
    inset: 0;
    top: var(--vv-offset-y, 0px);
    left: var(--vv-offset-x, 0px);
    right: auto;
    background: linear-gradient(180deg, #000000 0%, #0a0a0a 100%);
    z-index: 10020;
    padding-top: calc(var(--mobile-header-height) + env(safe-area-inset-top));
    padding-bottom: env(safe-area-inset-bottom);
    pointer-events: none;
    width: var(--vv-width, 100%);
    height: var(--vv-height, 100dvh);
    max-width: 100%;
    box-sizing: border-box;
    transform: translate3d(0, 0, 0);
    will-change: transform;
  }
  .mobile-drawer-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: var(--mobile-space-4) var(--mobile-space-4) var(--mobile-space-4); /* var(--mobile-space-3) → var(--mobile-space-4) (top padding: 24px → 32px, daha dengeli top spacing) */
    gap: var(--mobile-space-3);
    box-sizing: border-box;
  }
  .mobile-drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 48px;
    margin-bottom: 0;        /* +YENİ: Gereksiz alt boşluk kontrolü (gap ile kontrol edilecek) */
  }
  .mobile-drawer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .mobile-drawer-logo {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: 10px;
  }
  .mobile-drawer-brand-text {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1.375rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    text-transform: none;
    color: #ffffff;
  }
  .mobile-drawer-title {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #ffffff;
  }
  .mobile-drawer-close {
    height: 44px;
    min-width: 44px;
    padding: 0 16px;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
    border-radius: 10px;
    cursor: pointer;
    margin-left: auto;
    transition: background 0.2s ease;
  }
  .mobile-drawer-close:hover {
    background: rgba(255, 255, 255, 0.12);
  }
  .mobile-drawer-close:active {
    transform: scale(0.97);
  }
  .mobile-drawer-nav {
    display: flex;
    flex-direction: column;
    gap: var(--mobile-space-3);
    padding: 0;
    margin-top: 0;           /* +YENİ: Gereksiz üst boşluk kontrolü (mobile-drawer-top margin-bottom yeterli) */
  }
  .mobile-drawer-section {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 0;
  }
  .mobile-drawer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 8px 0;
  }
  .mobile-drawer-link {
    display: inline-flex;
    align-items: center;
    min-height: 52px;
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    text-transform: none;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 12px 16px;
    position: relative;
    transform: translateY(var(--mobile-space-1));
    opacity: 0;
    border-radius: 12px;
    transition: color 0.2s ease, background-color 0.2s ease;
  }
  .mobile-drawer-link:active {
    background: rgba(255, 255, 255, 0.06);
  }
  .mobile-drawer-link::after {
    display: none;
  }
  .mobile-drawer-link.active {
    opacity: 1;
    color: #ffffff;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.08);
  }
  .mobile-lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    transform: translateY(var(--mobile-space-1));
  }
  .mobile-lang-switch a {
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0;
    min-height: 44px;
    padding: 10px 16px;
    color: rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    transition: color 0.2s ease, background 0.2s ease;
    display: flex;
    align-items: center;
    text-decoration: none;
  }
  .mobile-lang-switch a:active {
    background: rgba(255, 255, 255, 0.06);
  }
  .mobile-lang-switch a.active {
    color: #ffffff;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.08);
  }
  .mobile-lang-sep {
    opacity: 0.3;
    color: #ffffff;
    font-size: 0.75rem;
  }
  .mobile-drawer-utility {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: var(--mobile-space-2);
    padding-top: var(--mobile-space-2); /* +YENİ: Utility section için üst boşluk (section separation) */
  }
  body.mobile-shell-open .mobile-overlay {
    pointer-events: auto;
  }
  body.mobile-shell-open .mobile-drawer {
    pointer-events: auto;
  }
}
@media (min-width: 769px) {
  .mobile-header,
  .mobile-overlay,
  .mobile-drawer {
    display: none !important;
  }
}