/* =========================================================
   KARABULUT — CERTIFICATES INNER PAGE
   ========================================================= */

.kb-certificates-page {
    width: 100%;
    max-width: 100%;
    padding: 18px 0 20px;
}

.kb-certificates-grid {
    display: grid;
    grid-template-columns: repeat(var(--kb-certificate-columns, 3), minmax(0, 1fr));
    gap: 44px 34px;
    align-items: start;
}

.kb-certificate-item {
    min-width: 0;
}

.kb-certificate-card {
    position: relative;
    display: flex;
    width: 100%;
    aspect-ratio: 0.707 / 1;
    align-items: center;
    justify-content: center;
    padding: 0;
    overflow: hidden;
    border: 1px solid #252525;
    border-radius: 18px;
    background: #fff;
    color: inherit;
    cursor: zoom-in;
    appearance: none;
    box-shadow: none;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

button.kb-certificate-card:hover,
button.kb-certificate-card:focus-visible {
    transform: translateY(-3px);
    border-color: var(--kb-accent, #ffa400);
    box-shadow: 0 12px 28px rgba(37, 45, 82, .12);
    outline: none;
}

.kb-certificate-card__image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
}

.kb-certificate-card--placeholder {
    cursor: default;
    border-color: #c8c8c8;
    background: #eceef1;
}

.kb-certificate-card__logo {
    display: block;
    width: 42%;
    max-width: 150px;
    height: auto;
    opacity: .24;
    filter: grayscale(1);
}

.kb-certificates-page__empty {
    min-height: 340px;
}

/* Lightbox ------------------------------------------------ */
.kb-certificate-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .2s ease, visibility .2s ease;
}

.kb-certificate-lightbox.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.kb-certificate-lightbox__backdrop {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: rgba(12, 15, 26, .84);
    cursor: zoom-out;
}

.kb-certificate-lightbox__dialog {
    position: relative;
    z-index: 1;
    display: flex;
    max-width: min(900px, 90vw);
    max-height: 90vh;
    flex-direction: column;
    align-items: center;
}

.kb-certificate-lightbox__image {
    display: block;
    max-width: 100%;
    max-height: calc(90vh - 48px);
    width: auto;
    height: auto;
    object-fit: contain;
    background: #fff;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .38);
}

.kb-certificate-lightbox__title {
    max-width: 100%;
    margin-top: 10px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.25;
    text-align: center;
}

.kb-certificate-lightbox__close {
    position: absolute;
    top: -18px;
    right: -18px;
    z-index: 2;
    display: inline-flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    padding: 0 0 3px;
    border: 0;
    border-radius: 50%;
    background: var(--kb-accent, #ffa400);
    color: #fff;
    font-family: Arial, sans-serif;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}

body.kb-certificate-lightbox-open {
    overflow: hidden;
}

@media (max-width: 1100px) {
    .kb-certificates-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 34px 26px;
    }
}

@media (max-width: 760px) {
    .kb-certificates-page {
        padding-top: 4px;
    }

    .kb-certificates-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px 18px;
    }

    .kb-certificate-card {
        border-radius: 13px;
    }

    .kb-certificate-lightbox {
        padding: 18px;
    }

    .kb-certificate-lightbox__close {
        top: -14px;
        right: -10px;
        width: 36px;
        height: 36px;
        font-size: 25px;
    }
}

@media (max-width: 420px) {
    .kb-certificates-grid {
        gap: 18px 12px;
    }
}