/* header.css — Header, navigasyon, dil seçici, mobil menü */

header {
    position: sticky; top: 0; z-index: 9000;
    background: rgba(10,10,31,0.82);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0,245,255,0.18);
    transition: var(--transition);
    padding: 0;
}
header.scrolled {
    background: rgba(10,10,31,0.97);
    box-shadow: 0 4px 30px rgba(0,245,255,0.12);
}

.header-inner {
    max-width: 1400px; margin: 0 auto;
    display: flex; align-items: center;
    justify-content: space-between;
    height: 72px; padding: 0 2rem; gap: 1.5rem;
}

/* Logo */
.logo-wrap {
    display: flex; align-items: center; gap: 12px;
    text-decoration: none; flex-shrink: 0;
}
.logo-icon-fallback {
    width: 44px; height: 44px; border-radius: 12px;
    background: linear-gradient(135deg, #00f5ff, #ff00ff);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 1rem;
    font-family: var(--font-heading); color: #0a0a1f;
    box-shadow: 0 0 18px rgba(0,245,255,0.35);
    flex-shrink: 0;
}
.logo-wrap img.logo-img-main {
    width: 46px; height: 46px; object-fit: contain; flex-shrink: 0;
    transition: var(--transition);
}
.logo-wrap:hover img.logo-img-main {
    transform: scale(1.1) rotate(-5deg);
}
.logo-text-wrap { display: flex; flex-direction: column; }
.logo-name {
    font-family: var(--font-heading);
    font-weight: 700; font-size: 1.35rem;
    background: linear-gradient(90deg, #00f5ff, #ff00ff, #00f5ff);
    background-size: 200% 100%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 4s linear infinite; line-height: 1;
}
.logo-tagline {
    font-size: 0.62rem; color: var(--text-dim);
    text-transform: uppercase; letter-spacing: 0.12em;
}
@keyframes shimmer {
    0%   { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Desktop nav */
.nav-desktop {
    display: none; align-items: center;
    gap: 0.35rem; list-style: none; flex: 1; justify-content: center;
}
@media (min-width: 900px) { .nav-desktop { display: flex; } }
.nav-desktop li { list-style: none; }
.nav-desktop a {
    display: inline-block;
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 0.875rem; font-weight: 600;
    padding: 0.5rem 1.6rem;
    border: 1.5px solid rgba(0,245,255,0.3);
    border-radius: 6px;
    transition: var(--transition); white-space: nowrap;
}
.nav-desktop a:hover,
.nav-desktop a.active {
    color: var(--brand-cyan);
    background: rgba(0,245,255,0.1);
    border-color: var(--brand-cyan);
    box-shadow: 0 0 14px rgba(0,245,255,0.3);
}

/* Header sağ panel */
.header-top-bar {
    display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0;
}

/* Dil seçici */
.lang-wrapper { position: relative; }
.lang-btn {
    background: rgba(0,245,255,0.08);
    border: 1.5px solid var(--brand-cyan);
    color: var(--brand-cyan);
    padding: 0.45rem 0.75rem; border-radius: 6px;
    height: 36px; cursor: pointer;
    font-size: 1rem; font-weight: 700;
    font-family: var(--font-body);
    display: flex; align-items: center; justify-content: center; gap: 0.3rem;
    transition: var(--transition); white-space: nowrap;
    min-width: 52px;
}
.lang-btn:hover {
    background: rgba(0,245,255,0.18);
    box-shadow: 0 0 14px rgba(0,245,255,0.35);
}
.lang-dropdown {
    display: none; position: absolute;
    top: calc(100% + 8px); right: 0;
    min-width: 145px;
    background: rgba(10,10,31,0.97);
    border: 1.5px solid var(--brand-cyan);
    border-radius: 8px; overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,245,255,0.22);
    backdrop-filter: blur(12px); z-index: 9999;
}
.lang-dropdown.show { display: block; animation: langSlide 0.22s ease; }
@keyframes langSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.lang-item {
    display: block; width: 100%;
    padding: 0.7rem 1rem; color: var(--brand-cyan);
    font-size: 0.85rem; font-family: var(--font-body); font-weight: 600;
    background: none; border: none;
    border-bottom: 1px solid rgba(0,245,255,0.12);
    text-align: left; cursor: pointer; transition: all 0.2s;
}
.lang-item:last-child { border-bottom: none; }
.lang-item:hover { background: rgba(0,245,255,0.12); padding-left: 1.3rem; }
.lang-item.active {
    background: rgba(124,58,237,0.2);
    color: #fff;
}

/* Mobil hamburger */
.mobile-toggle {
    background: rgba(0,245,255,0.08);
    border: 1.5px solid var(--brand-cyan);
    color: var(--brand-cyan); width: 36px; height: 36px;
    border-radius: 6px; font-size: 1rem;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: var(--transition);
}
.mobile-toggle:hover {
    background: rgba(0,245,255,0.2);
    box-shadow: 0 0 12px rgba(0,245,255,0.3);
}
@media (min-width: 900px) { .mobile-toggle { display: none !important; } }

/* Mobil menü */
.mobile-menu {
    display: none; flex-direction: column;
    gap: 0.4rem; padding: 1rem 1.5rem 1.2rem;
    border-top: 1px solid rgba(0,245,255,0.12);
    background: rgba(10,10,31,0.97);
}
.mobile-menu.open { display: flex; animation: menuSlide 0.25s ease; }
@keyframes menuSlide {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.mobile-menu a {
    color: rgba(255,255,255,0.78); text-decoration: none;
    font-size: 0.9rem; font-weight: 600;
    padding: 0.65rem 1rem;
    border: 1.5px solid rgba(0,245,255,0.25);
    border-radius: 10px; transition: var(--transition);
}
.mobile-menu a:hover,
.mobile-menu a.active {
    color: var(--brand-cyan);
    background: rgba(0,245,255,0.08);
    border-color: var(--brand-cyan);
}

.header-actions { display: none; }