/* ---------- Designs Page ---------- */

.designs-section {
    background: #f5f7fb;
    padding: 70px 0;
}

.designs-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 45px;
}

.designs-header .section-label {
    display: inline-block;
    margin-bottom: 10px;
    color: #4ca1af;
    font-size: 0.78em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.designs-header h2 {
    font-size: 2.3em;
    color: #212121;
    margin-bottom: 12px;
}

.designs-header p {
    font-size: 1.05em;
    color: #666;
    line-height: 1.7;
}

.designs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 32px;
}

.design-card {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 12px 35px rgba(33, 33, 33, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.design-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 45px rgba(33, 33, 33, 0.15);
}

.design-preview {
    position: relative;
    display: block;
    width: 100%;
    height: 390px;
    border: 0;
    padding: 0;
    cursor: pointer;
    overflow: hidden;
    background: linear-gradient(135deg, #eef3f8, #ffffff);
}

.design-preview::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    box-shadow: inset 0 -80px 80px rgba(255, 255, 255, 0.9);
}

.design-preview img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.45s ease, opacity 0.3s ease;
    opacity: 0;
}

.design-preview img.is-loaded {
    opacity: 1;
}

.design-card:hover .design-preview img {
    transform: scale(1.04);
}

.preview-overlay {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(44, 62, 80, 0.62);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.design-card:hover .preview-overlay {
    opacity: 1;
}

.preview-overlay span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: #2c3e50;
    padding: 12px 18px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95em;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.design-info {
    padding: 20px 22px 24px;
}

.design-info h3 {
    font-size: 1.15em;
    color: #212121;
    margin-bottom: 6px;
}

.design-info p {
    font-size: 0.92em;
    color: #777;
}

.empty-designs {
    background: #fff;
    border-radius: 18px;
    text-align: center;
    padding: 55px 25px;
    box-shadow: 0 12px 35px rgba(33, 33, 33, 0.08);
}

.empty-designs i {
    display: block;
    font-size: 3em;
    color: #4ca1af;
    margin-bottom: 15px;
}

.empty-designs h3 {
    font-size: 1.5em;
    color: #212121;
    margin-bottom: 8px;
}

.empty-designs p {
    color: #666;
}

/* ---------- Full Design Modal ---------- */

body.modal-open {
    overflow: hidden;
}

.design-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
}

.design-modal.is-open {
    display: block;
}

.design-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(12, 20, 30, 0.82);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.design-modal-dialog {
    position: relative;
    z-index: 2;
    width: min(1120px, calc(100% - 32px));
    height: calc(100vh - 48px);
    margin: 24px auto;
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.45);
    display: flex;
    flex-direction: column;
    animation: modalFadeUp 0.25s ease;
}

@keyframes modalFadeUp {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.design-modal-header {
    flex: 0 0 auto;
    padding: 16px 20px;
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
}

.design-modal-header span {
    display: block;
    font-size: 0.72em;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    opacity: 0.8;
    margin-bottom: 3px;
}

.design-modal-header h3 {
    font-size: 1.25em;
    line-height: 1.3;
}

.design-modal-close {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
    cursor: pointer;
    font-size: 1.1em;
    transition: background 0.25s ease, transform 0.25s ease;
}

.design-modal-close:hover {
    background: rgba(255, 255, 255, 0.28);
    transform: rotate(90deg);
}

.design-modal-body {
    flex: 1 1 auto;
    overflow: auto;
    background: #e9edf3;
    padding: 24px;
    text-align: center;
}

.design-modal-body img {
    display: block;
    width: 100%;
    max-width: 980px;
    height: auto;
    margin: 0 auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.18);
}

/* ---------- Responsive ---------- */

@media (max-width: 768px) {
    .designs-section {
        padding: 50px 0;
    }

    .designs-header h2 {
        font-size: 1.8em;
    }

    .designs-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .design-preview {
        height: 320px;
    }

    .design-modal-dialog {
        width: calc(100% - 18px);
        height: calc(100vh - 18px);
        margin: 9px auto;
        border-radius: 14px;
    }

    .design-modal-header {
        padding: 14px 15px;
    }

    .design-modal-header h3 {
        font-size: 1.05em;
    }

    .design-modal-body {
        padding: 12px;
    }
}

/* ---------- Image Loading Spinner ---------- */

.image-loader {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eef3f8, #ffffff);
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.image-loader span,
.modal-image-loader span {
    width: 42px;
    height: 42px;
    border: 4px solid rgba(76, 161, 175, 0.18);
    border-top-color: #4ca1af;
    border-radius: 50%;
    animation: designSpinner 0.85s linear infinite;
}

.design-preview.image-loaded .image-loader {
    opacity: 0;
    visibility: hidden;
}

@keyframes designSpinner {
    to {
        transform: rotate(360deg);
    }
}

/* ---------- Modal Image Loading ---------- */

.modal-image-loader {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 14px;
    background: #e9edf3;
    color: #2c3e50;
    font-weight: 700;
}

.modal-image-loader.is-visible {
    display: flex;
}

.modal-image-loader p {
    font-size: 0.95em;
    color: #555;
}

.design-modal-body {
    position: relative;
}

.design-modal-body img {
    opacity: 0;
    transition: opacity 0.25s ease;
}

.design-modal-body img.is-loaded {
    opacity: 1;
}