/* TECNA EXPO 2026 popup — Ana sayfa, Faz 1 (bkz. _dev-notes/plan.md) */
.tecna-popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 33, 0.7);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease;
}

.tecna-popup-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.tecna-popup {
    position: relative;
    max-width: 380px;
    width: 100%;
    max-height: 90vh;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(0, 0, 0, .4);
    transform: translateY(16px);
    transition: transform .25s ease;
    line-height: 0;
}

.tecna-popup-overlay.is-open .tecna-popup {
    transform: translateY(0);
}

.tecna-popup-img {
    display: block;
    width: 100%;
    height: 100%;
    max-height: 90vh;
    object-fit: contain;
    background: #ede7e0;
}

.tecna-popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    border: none;
    background: rgba(255, 255, 255, .9);
    font-size: 20px;
    line-height: 1;
    color: #1f2f45;
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
    transition: background .15s ease;
    z-index: 1;
}

.tecna-popup-close:hover {
    background: #fff;
}