/* Hamburger butonu (sağ üstte) */
.hamburger {
    background: transparent;
    border: 0;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
}
.hamburger:hover {
    background: rgba(255,255,255,0.06);
}
.hamburger__line {
    width: 28px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s var(--ease-out);
    transform-origin: center;
}

/* Fullscreen menü overlay */
.menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s var(--ease-out), visibility 0.5s;
}
body.menu-open .menu-overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Blur backdrop */
.menu-overlay__backdrop {
    position: absolute; inset: 0;
    background: rgba(4, 8, 16, 0.72);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    opacity: 0;
    transition: opacity 0.5s var(--ease-out);
}
body.menu-open .menu-overlay__backdrop { opacity: 1; }

/* Panel (sağdan kayan) */
.menu-overlay__panel {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: min(640px, 92%);
    background: linear-gradient(180deg, #04080f 0%, #081220 100%);
    border-left: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.55s var(--ease-out);
    overflow-y: auto;
    box-shadow: -40px 0 80px rgba(0,0,0,0.6);
}
body.menu-open .menu-overlay__panel {
    transform: translateX(0);
}

/* Dekoratif gradient topu */
.menu-overlay__panel::before {
    content: '';
    position: absolute;
    top: -200px; right: -200px;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(0,105,174,0.25), transparent 70%);
    pointer-events: none;
}

/* Üst: logo + kapat */
.menu-overlay__top {
    display: flex; align-items: center; justify-content: space-between;
    padding: 26px 40px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.menu-overlay__brand img { height: 40px; width: auto; }
.menu-overlay__close {
    width: 44px; height: 44px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--color-text);
    display: grid; place-items: center;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}
.menu-overlay__close:hover {
    background: var(--color-brand);
    border-color: var(--color-brand);
    transform: rotate(90deg);
}
.menu-overlay__close svg { width: 20px; height: 20px; }

/* Menü öğeleri listesi */
.menu-overlay__list {
    flex: 1;
    padding: 24px 0;
    display: flex;
    flex-direction: column;
}

.menu-row {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 22px 40px;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    position: relative;
    transition: all 0.4s var(--ease-out);

    opacity: 0;
    transform: translateY(20px);
}
body.menu-open .menu-row {
    animation: menuItemIn 0.7s var(--ease-out) forwards;
    animation-delay: calc(200ms + var(--delay, 0ms));
}
@keyframes menuItemIn {
    to { opacity: 1; transform: translateY(0); }
}

.menu-row:hover,
.menu-row.is-active {
    background: rgba(0,105,174,0.15);
    padding-left: 54px;
    color: #fff;
}
.menu-row:hover .menu-row__num,
.menu-row.is-active .menu-row__num {
    color: var(--color-brand-hi);
}

.menu-row__num {
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.4);
    font-weight: 600;
    font-family: 'Courier New', monospace;
    min-width: 32px;
    transition: color 0.3s;
}
.menu-row__label {
    flex: 1;
    font-size: 1.6rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}
.menu-row__arrow,
.menu-row__plus {
    width: 40px; height: 40px;
    display: grid; place-items: center;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    color: rgba(255,255,255,0.7);
    transition: all 0.3s var(--ease-out);
}
.menu-row__arrow svg,
.menu-row__plus svg { width: 16px; height: 16px; }
.menu-row:hover .menu-row__arrow,
.menu-row.is-active .menu-row__arrow {
    background: var(--color-brand);
    border-color: var(--color-brand);
    color: #fff;
    transform: rotate(-45deg);
}

/* Genişleyen alt menü (Kurumsal) */
.menu-row--expandable {
    display: block;
    padding: 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.menu-row__head {
    background: transparent;
    border: 0;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 22px 40px;
    color: var(--color-text);
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: all 0.3s var(--ease-out);
}
.menu-row__head:hover {
    background: rgba(0,105,174,0.15);
    padding-left: 54px;
}

.menu-row__sub {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--ease-out);
    padding-left: 72px;
    background: rgba(0,0,0,0.25);
}
.menu-row--expandable.is-open .menu-row__sub {
    max-height: 400px;
    padding-top: 8px;
    padding-bottom: 14px;
}
.menu-row--expandable.is-open .menu-row__plus svg {
    transform: rotate(180deg);
}

.menu-row__sub a {
    display: block;
    padding: 10px 20px;
    color: rgba(255,255,255,0.72);
    font-size: 0.98rem;
    border-left: 2px solid transparent;
    padding-left: 14px;
    margin-left: 0;
    transition: all 0.25s;
}
.menu-row__sub a:hover {
    color: #fff;
    border-left-color: var(--color-brand-hi);
    padding-left: 20px;
}

/* Alt — iletişim ve grup şirketleri */
.menu-overlay__footer {
    padding: 30px 40px 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.menu-overlay__contact,
.menu-overlay__sites {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.menu-overlay__contact-label {
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    margin-bottom: 10px;
}
.menu-overlay__contact a,
.menu-overlay__sites a {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.82);
    transition: color 0.25s;
}
.menu-overlay__contact a:hover,
.menu-overlay__sites a:hover { color: var(--color-brand-hi); }

/* Burger → X dönüşümü */
body.menu-open .hamburger__line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
body.menu-open .hamburger__line:nth-child(2) {
    opacity: 0;
}
body.menu-open .hamburger__line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Body scroll lock */
body.menu-open { overflow: hidden; }

@media (max-width: 640px) {
    .menu-overlay__panel { width: 100%; border-left: 0; }
    .menu-overlay__top { padding: 20px 24px; }
    .menu-row { padding: 18px 24px; }
    .menu-row__head { padding: 18px 24px; }
    .menu-row:hover { padding-left: 36px; }
    .menu-row__head:hover { padding-left: 36px; }
    .menu-row__label { font-size: 1.25rem; }
    .menu-overlay__footer { grid-template-columns: 1fr; padding: 24px 24px 32px; gap: 22px; }
}

/* Eski inline menü artık kullanılmıyor, eski burger gizle */
.topbar__burger { display: none !important; }
.topbar__nav { display: none !important; }