*, *::before, *::after { box-sizing: border-box; }

:root {
    --nb-bg:          #ffffff;
    --nb-text:        #18171C;
    --nb-hover:       #3C3489;
    --nb-height:      80px;
    --nb-logo-h:      50px;
    --nb-max:         1400px;
    --nb-pad:         24px;
    --nb-border:      rgba(0,0,0,.08);
    --nb-border-md:   rgba(0,0,0,.13);
    --nb-radius:      14px;
    --nb-radius-sm:   9px;
    --nb-radius-xs:   7px;
    --nb-shadow:      0 2px 12px rgba(0,0,0,.07), 0 8px 32px rgba(0,0,0,.06);
    --nb-shadow-mega: 0 8px 40px rgba(0,0,0,.13), 0 2px 0 rgba(0,0,0,.04);
    --nb-ease:        cubic-bezier(.25,.1,.25,1);
    --nb-t:           .2s;
    --mega-col1: 240px;
    --mega-col3: 300px;
}

/* ══════════════════════════════════════════════════════════
   NAV KÖKÜ
══════════════════════════════════════════════════════════ */
.site-navbar {
    width: 100%;
    height: var(--nb-height);
    background: var(--nb-bg);
    border-bottom: 1px solid var(--nb-border);
    z-index: 1000;
    transition: box-shadow var(--nb-t), background var(--nb-t), transform 0.3s ease;
    font-family: 'Sora', sans-serif;
    position: relative;
}

.site-navbar.is-sticky {
    position: fixed;
    top: 0;
    left: 0;
}

.site-navbar.is-glass {
    background: color-mix(in srgb, var(--nb-bg) 76%, transparent) !important;
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    border-bottom-color: color-mix(in srgb, var(--nb-bg) 30%, transparent);
}

.site-navbar.is-sticky.is-scrolled {
    position: fixed;
    top: 0;
    left: 0;
}

.nb-inner {
    max-width: var(--nb-max);
    margin: 0 auto;
    padding: 0 var(--nb-pad);
    height: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    position: relative;
}

/* ══════════════════════════════════════════════════════════
   LOGO
══════════════════════════════════════════════════════════ */
.nb-logo {
    flex-shrink: 0; display: flex; align-items: center;
    text-decoration: none; z-index: 2;
}
.nb-logo img { height: var(--nb-logo-h); width: auto; display: block; object-fit: contain; }
.nb-logo-text {
    font-family: 'DM Serif Display', serif;
    font-size: 22px; font-weight: 400; color: var(--nb-text);
    white-space: nowrap; letter-spacing: -.3px;
}

.nb-logo--left   { order: 0; }
.nb-logo--center { order: 1; position: absolute; left: 50%; transform: translateX(-50%); }
.nb-logo--right  { order: 3; margin-left: auto; }

/* ══════════════════════════════════════════════════════════
   DESKTOP MENÜ
══════════════════════════════════════════════════════════ */
.nb-menu {
    list-style: none; display: flex; align-items: center;
    height: 100%; gap: 2px; padding: 0; margin: 0;
}
.nb-menu--left   { order: 1; }
.nb-menu--center { order: 2; position: absolute; left: 50%; transform: translateX(-50%); }
.nb-menu--right  { order: 2; margin-left: auto; }

.nb-item { height: 100%; display: flex; align-items: center; position: relative; }
.nb-align--left   { margin-right: auto; }
.nb-align--right  { margin-left: auto; }
.nb-align--center { margin-left: auto; margin-right: auto; }

.nb-link {
    display: flex; align-items: center; gap: 5px;
    padding: 0 13px; height: 100%;
    font-size: 13.5px; font-weight: 500;
    color: var(--nb-text); text-decoration: none;
    white-space: nowrap; cursor: pointer;
    position: relative;
    transition: color var(--nb-t) var(--nb-ease);
    user-select: none;
}
.nb-link::after {
    content: '';
    position: absolute; bottom: 0; left: 13px; right: 13px;
    height: 2px; border-radius: 2px 2px 0 0;
    background: var(--nb-hover);
    transform: scaleX(0); transform-origin: center;
    transition: transform .2s var(--nb-ease);
}
.nb-link:hover, .nb-link:focus-visible { color: var(--nb-hover); outline: none; }
.nb-link:hover::after { transform: scaleX(1); }
.nb-link.is-active { color: var(--nb-hover); font-weight: 600; }
.nb-link.is-active::after { transform: scaleX(1); }

.nb-btn {
    height: 36px !important; padding: 0 20px !important;
    border-radius: 24px; background: var(--nb-hover);
    color: #fff !important; font-weight: 600; font-size: 13px !important;
    border: 2px solid var(--nb-hover); align-self: center;
    transition: background var(--nb-t), color var(--nb-t),
                transform var(--nb-t), box-shadow var(--nb-t) !important;
}
.nb-btn::after { display: none !important; }
.nb-btn:hover {
    background: transparent !important; color: var(--nb-hover) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--nb-hover) 28%, transparent);
}

.nb-chev {
    width: 12px; height: 12px; flex-shrink: 0; opacity: .45;
    transition: transform var(--nb-t) var(--nb-ease), opacity var(--nb-t);
}
.nb-has-drop:hover > .nb-link .nb-chev,
.nb-has-mega:hover > .nb-link .nb-chev,
.nb-link[aria-expanded="true"] .nb-chev { transform: rotate(180deg); opacity: 1; }

.nb-icon { font-size: 13px; }

/* ══════════════════════════════════════════════════════════
   DROPDOWN
══════════════════════════════════════════════════════════ */
.nb-has-drop { position: relative; }

.nb-drop {
    position: absolute; top: calc(100% + 6px); left: 0;
    min-width: 240px;
    background: var(--nb-bg);
    border: 1px solid var(--nb-border-md);
    border-radius: var(--nb-radius);
    box-shadow: var(--nb-shadow);
    padding: 8px;
    opacity: 0; visibility: hidden; transform: translateY(10px);
    transition: opacity var(--nb-t) var(--nb-ease),
                transform var(--nb-t) var(--nb-ease), visibility var(--nb-t);
    z-index: 600; pointer-events: none;
}
.nb-drop::before {
    content: ''; position: absolute; top: -5px; left: 22px;
    width: 10px; height: 10px; background: var(--nb-bg);
    border-left: 1px solid var(--nb-border-md);
    border-top: 1px solid var(--nb-border-md);
    transform: rotate(45deg); border-radius: 2px 0 0 0;
}
.nb-has-drop:hover .nb-drop,
.nb-has-drop:focus-within .nb-drop {
    opacity: 1; visibility: visible; transform: translateY(0); pointer-events: all;
}

.nb-drop-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 2px; }

.nb-drop-link {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: var(--nb-radius-sm);
    text-decoration: none; font-size: 13.5px; font-weight: 400;
    color: var(--nb-text);
    transition: background var(--nb-t), color var(--nb-t);
}
.nb-drop-link:hover {
    background: color-mix(in srgb, var(--nb-hover) 7%, transparent);
    color: var(--nb-hover);
}
.nb-drop-thumb {
    width: 32px; height: 32px; border-radius: var(--nb-radius-xs);
    overflow: hidden; flex-shrink: 0; background: rgba(0,0,0,.04);
}
.nb-drop-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nb-drop-arr {
    width: 12px; height: 12px; margin-left: auto; flex-shrink: 0;
    stroke: var(--nb-hover); opacity: 0;
    transition: opacity var(--nb-t), transform var(--nb-t);
}
.nb-drop-link:hover .nb-drop-arr { opacity: 1; transform: translateX(2px); }

.nb-mega {
    position: fixed;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--nb-bg);
    border-top: 1px solid var(--nb-border);
    border-bottom: 1px solid var(--nb-border);
    box-shadow: var(--nb-shadow-mega);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s var(--nb-ease),
                transform .25s var(--nb-ease),
                visibility .25s;
    z-index: 900;
    pointer-events: none;
    min-height: 440px;
    max-height: calc(100vh - var(--nb-height) - 16px);
    min-width: 1200px;
    overflow-y: auto;
}

.nb-has-mega:hover .nb-mega,
.nb-has-mega:focus-within .nb-mega {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: all;
}

.nb-mega-inner {
    max-width: var(--nb-max);
    margin: 0 auto;
    padding: 0 var(--nb-pad);
    display: grid;
    grid-template-columns: var(--mega-col1) 1fr var(--mega-col3);
    min-height: 440px;
}

.nb-mega-col { padding: 32px 0; }

.nb-mega-col--cats {
    border-right: 1px solid var(--nb-border);
}

.nb-mega-head {
    font-size: 10px; font-weight: 700;
    letter-spacing: .11em; text-transform: uppercase;
    color: color-mix(in srgb, var(--nb-text) 35%, transparent);
    padding: 0 20px 14px; margin: 0 0 4px;
    border-bottom: 1px solid var(--nb-border);
}

.nb-catlist {
    list-style: none; padding: 8px 0 0; margin: 0;
    display: flex; flex-direction: column; gap: 1px;
}

.nb-cattrig {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    gap: 8px; padding: 12px 20px;
    background: transparent; border: none;
    border-right: 3px solid transparent;
    font-family: 'Sora', sans-serif; font-size: 14px; font-weight: 500;
    color: var(--nb-text); cursor: pointer; text-align: left;
    transition: background var(--nb-t) var(--nb-ease),
                color var(--nb-t) var(--nb-ease), border-color var(--nb-t);
}
.nb-cattrig svg {
    width: 14px; height: 14px; flex-shrink: 0;
    stroke: var(--nb-hover); opacity: 0;
    transition: opacity var(--nb-t), transform var(--nb-t);
}
.nb-cattrig:hover {
    background: color-mix(in srgb, var(--nb-hover) 6%, transparent);
    color: var(--nb-hover);
}
.nb-cattrig:hover svg { opacity: 1; transform: translateX(2px); }
.nb-catitem.is-active .nb-cattrig {
    background: color-mix(in srgb, var(--nb-hover) 9%, transparent);
    color: var(--nb-hover); font-weight: 600;
    border-right-color: var(--nb-hover);
}
.nb-catitem.is-active .nb-cattrig svg { opacity: 1; transform: translateX(3px); }
.nb-cat-name { flex: 1; }

.nb-mega-col--children {
    border-right: 1px solid var(--nb-border);
    display: flex; flex-direction: column;
}

.nb-childhead { padding-left: 24px; }

.nb-childwrap {
    flex: 1; padding: 8px 0 0;
    position: relative;
    min-height: 200px;
}

.nb-child-blank {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 12px;
    color: color-mix(in srgb, var(--nb-text) 26%, transparent);
    font-size: 13px; font-style: italic;
    transition: opacity .18s; pointer-events: none; user-select: none;
}
.nb-child-blank.is-hidden { opacity: 0; }

.nb-childlist {
    list-style: none; margin: 0;
    padding: 8px 20px 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px 8px;
    align-content: start;
    opacity: 0;
    transform: translateX(12px);
    transition: opacity .22s var(--nb-ease), transform .22s var(--nb-ease);
}
.nb-childlist[hidden] { display: none !important; }
.nb-childlist:not([hidden]) { opacity: 1; transform: translateX(0); }

.nb-childlink {
    display: flex; align-items: center; justify-content: space-between;
    gap: 6px; padding: 10px 12px;
    border-radius: var(--nb-radius-xs);
    text-decoration: none; font-size: 13.5px; font-weight: 400;
    color: var(--nb-text);
    transition: background var(--nb-t), color var(--nb-t);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.nb-childlink svg {
    width: 12px; height: 12px; flex-shrink: 0;
    stroke: var(--nb-hover); opacity: 0;
    transition: opacity var(--nb-t), transform var(--nb-t);
}
.nb-childlink:hover {
    background: color-mix(in srgb, var(--nb-hover) 7%, transparent);
    color: var(--nb-hover);
}
.nb-childlink:hover svg { opacity: 1; transform: translateX(2px); }

.nb-child-empty {
    padding: 16px 12px; font-size: 13px;
    color: color-mix(in srgb, var(--nb-text) 32%, transparent);
    font-style: italic; grid-column: 1 / -1;
}

.nb-mega-col--preview {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 32px 28px; gap: 16px;
}

.nb-preview {
    width: 100%; flex: 1; max-height: 360px;
    border-radius: var(--nb-radius); overflow: hidden;
    border: 1px solid var(--nb-border-md);
    background: color-mix(in srgb, var(--nb-text) 3%, transparent);
    position: relative; display: flex; align-items: center; justify-content: center;
}

.nb-preview-empty {
    position: absolute; inset: 0; z-index: 1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 10px;
    color: color-mix(in srgb, var(--nb-text) 26%, transparent);
    font-size: 12.5px; text-align: center; padding: 20px;
    transition: opacity .2s;
}

.nb-preview-photo {
    position: absolute; inset: 0; z-index: 2;
    width: 100%; height: 100%; object-fit: cover; display: block;
    opacity: 0; transform: scale(1.04);
    transition: opacity .32s ease, transform .44s var(--nb-ease);
}
.nb-preview-photo.is-loaded { opacity: 1; transform: scale(1); }
.nb-preview:has(.nb-preview-photo.is-loaded) .nb-preview-empty { opacity: 0; pointer-events: none; }

.nb-preview-footer {
    position: absolute; bottom: 0; left: 0; right: 0; z-index: 3;
    padding: 12px 16px;
    background: linear-gradient(to top, rgba(0,0,0,.65) 0%, transparent 100%);
    display: flex; align-items: flex-end; justify-content: space-between;
    opacity: 0; transform: translateY(5px);
    transition: opacity .22s, transform .22s;
}
.nb-preview:has(.nb-preview-photo.is-loaded) .nb-preview-footer { opacity: 1; transform: translateY(0); }

.nb-preview-label {
    font-size: 13px; font-weight: 600;
    color: rgba(255,255,255,.93); line-height: 1.3; max-width: 65%;
}
.nb-preview-cta {
    display: flex; align-items: center; gap: 4px;
    font-size: 12px; font-weight: 600;
    color: rgba(255,255,255,.82); white-space: nowrap; flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════
   HAMBURGER
══════════════════════════════════════════════════════════ */
.nb-burger {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 40px; height: 40px; background: transparent;
    border: 1px solid var(--nb-border-md); border-radius: var(--nb-radius-sm);
    cursor: pointer; padding: 9px 10px; margin-left: auto; order: 10; flex-shrink: 0;
    transition: background var(--nb-t), border-color var(--nb-t);
}
.nb-burger:hover {
    background: color-mix(in srgb, var(--nb-hover) 8%, transparent);
    border-color: color-mix(in srgb, var(--nb-hover) 38%, transparent);
}
.nb-burger span {
    display: block; height: 1.5px; width: 100%;
    background: var(--nb-text); border-radius: 2px; transform-origin: center;
    transition: transform .26s var(--nb-ease), opacity .2s, width .2s;
}
.nb-burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nb-burger.is-open span:nth-child(2) { opacity: 0; width: 0; }
.nb-burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ══════════════════════════════════════════════════════════
   MOBİL DRAWER
══════════════════════════════════════════════════════════ */
.nb-drawer {
    display: none; position: fixed;
    top: var(--nb-height); left: 0; right: 0; bottom: 0;
    z-index: 999; pointer-events: none;
}
.nb-drawer.is-open { pointer-events: all; }
.nb-drawer::before {
    content: ''; position: absolute; inset: 0;
    background: rgba(0,0,0,.38); backdrop-filter: blur(3px);
    opacity: 0; transition: opacity .28s;
}
.nb-drawer.is-open::before { opacity: 1; }

.nb-drawer-scroll {
    position: absolute; top: 0; left: 0; right: 0;
    max-height: calc(100vh - var(--nb-height));
    overflow-y: auto; background: var(--nb-bg);
    border-top: 1px solid var(--nb-border);
    padding: 10px var(--nb-pad) 36px;
    box-shadow: var(--nb-shadow-mega);
    display: flex; flex-direction: column; gap: 2px;
    transform: translateY(-10px); opacity: 0;
    transition: transform .28s var(--nb-ease), opacity .28s;
}
.nb-drawer.is-open .nb-drawer-scroll { transform: translateY(0); opacity: 1; }

.nb-m-link {
    display: flex; align-items: center; gap: 10px; padding: 13px 12px;
    font-size: 14.5px; font-weight: 500; color: var(--nb-text);
    text-decoration: none; border-radius: var(--nb-radius-sm);
    transition: background var(--nb-t), color var(--nb-t);
}
.nb-m-link:hover {
    background: color-mix(in srgb, var(--nb-hover) 7%, transparent);
    color: var(--nb-hover);
}
.nb-m-btn {
    background: var(--nb-hover); color: #fff !important;
    justify-content: center; border-radius: 24px;
    font-weight: 600; margin: 6px 0;
}
.nb-m-btn:hover { opacity: .88; }

.nb-m-toggle {
    width: 100%; display: flex; align-items: center; gap: 10px; padding: 13px 12px;
    background: transparent; border: none; border-radius: var(--nb-radius-sm);
    font-family: 'Sora', sans-serif; font-size: 14.5px; font-weight: 500;
    color: var(--nb-text); cursor: pointer; text-align: left;
    transition: background var(--nb-t), color var(--nb-t);
}
.nb-m-toggle .nb-chev { width: 14px; height: 14px; margin-left: auto; opacity: .45; transition: transform var(--nb-t), opacity var(--nb-t); }
.nb-m-toggle[aria-expanded="true"] .nb-chev { transform: rotate(180deg); opacity: 1; }
.nb-m-toggle:hover {
    background: color-mix(in srgb, var(--nb-hover) 7%, transparent);
    color: var(--nb-hover);
}

.nb-m-sub {
    display: flex; flex-direction: column; gap: 1px;
    padding-left: 14px; margin: 0 12px 4px;
    border-left: 2px solid var(--nb-border-md);
    max-height: 0; overflow: hidden;
    transition: max-height .32s var(--nb-ease);
}
.nb-m-sub.is-open { max-height: 1400px; }

.nb-m-sublink {
    display: block; padding: 9px 12px; font-size: 13.5px; font-weight: 400;
    color: var(--nb-text); text-decoration: none; border-radius: var(--nb-radius-xs);
    transition: background var(--nb-t), color var(--nb-t);
}
.nb-m-sublink:hover {
    background: color-mix(in srgb, var(--nb-hover) 7%, transparent);
    color: var(--nb-hover);
}
.nb-m-parent { font-weight: 500; }
.nb-m-child {
    font-size: 13px;
    color: color-mix(in srgb, var(--nb-text) 58%, transparent);
    padding-left: 22px;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .nb-menu   { display: none; }
    .nb-burger { display: flex; }
    .nb-drawer { display: block; }
    .nb-logo--center { position: static; transform: none; margin: 0 auto; }
}

@media (max-width: 600px) {
    :root { --nb-height: 62px; }
}