/**
 * ExpressWeb - References Section Styles
 * Apple-quality design with premium animations
 */

/* === REFERENCES SECTION === */
.section-references {
    padding: var(--space-20, 5rem) 0;
    background: linear-gradient(180deg, var(--neutral-50, #f8fafc) 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}

/* Decorative Background Elements */
.section-references::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -25%;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle, rgba(169, 217, 212, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.section-references::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 40%;
    height: 80%;
    background: radial-gradient(circle, rgba(169, 217, 212, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

/* Section Header */
.section-header {
    margin-bottom: var(--space-12, 3rem);
}

.section-badge {
    display: inline-block;
    padding: var(--space-2, 0.5rem) var(--space-4, 1rem);
    background: rgba(169, 217, 212, 0.15);
    color: var(--primary-dark, #5ba3a3);
    font-size: var(--text-sm, 0.875rem);
    font-weight: 600;
    border-radius: var(--radius-full, 9999px);
    margin-bottom: var(--space-4, 1rem);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.section-title {
    font-family: var(--font-display, 'Katibeh', cursive);
    font-size: var(--text-4xl, 2.25rem);
    color: var(--dark, #0C0D0A);
    margin-bottom: var(--space-4, 1rem);
    line-height: var(--leading-tight, 1.2);
}

.section-subtitle {
    font-size: var(--text-lg, 1.125rem);
    color: var(--neutral-600, #475569);
    max-width: 600px;
    margin: 0 auto;
}

/* === REFERENCES GRID === */
.references-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6, 1.5rem);
    margin: var(--space-12, 3rem) 0;
}

@media (max-width: 1200px) {
    .references-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .references-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .references-grid {
        grid-template-columns: 1fr;
    }

    .section-references {
        padding: var(--space-12, 3rem) 0;
    }
}

/* === REFERENCE CARD === */
.reference-card {
    position: relative;
    background: var(--surface-primary, #ffffff);
    border-radius: var(--radius-xl, 1rem);
    overflow: hidden;
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.05));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Initial state for scroll animation */
    opacity: 0;
    transform: translateY(40px);
}

.reference-card.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays */
.reference-card:nth-child(1) { transition-delay: 0s; }
.reference-card:nth-child(2) { transition-delay: 0.1s; }
.reference-card:nth-child(3) { transition-delay: 0.2s; }
.reference-card:nth-child(4) { transition-delay: 0.3s; }
.reference-card:nth-child(5) { transition-delay: 0.4s; }
.reference-card:nth-child(6) { transition-delay: 0.5s; }
.reference-card:nth-child(7) { transition-delay: 0.6s; }
.reference-card:nth-child(8) { transition-delay: 0.7s; }

.reference-card:hover {
    transform: translateY(-8px) !important;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12);
}

/* Glow effect on hover */
.reference-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--primary, #A9D9D4), var(--primary-hover, #80bfbf));
    border-radius: calc(var(--radius-xl, 1rem) + 2px);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.reference-card:hover::before {
    opacity: 0.3;
}

/* === IMAGE WRAPPER === */
.reference-image-wrapper {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.reference-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reference-card:hover .reference-image {
    transform: scale(1.08);
}

/* Shimmer Loading Effect */
.reference-image-wrapper.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255,255,255,0.4) 50%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* === OVERLAY === */
.reference-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(12, 13, 10, 0.85) 0%,
        rgba(12, 13, 10, 0.4) 40%,
        transparent 100%
    );
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--space-6, 1.5rem);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.reference-card:hover .reference-overlay {
    opacity: 1;
}

.btn-view {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2, 0.5rem);
    padding: var(--space-3, 0.75rem) var(--space-5, 1.25rem);
    background: rgba(255, 255, 255, 0.95);
    color: var(--dark, #0C0D0A);
    border-radius: var(--radius-lg, 0.75rem);
    font-weight: 500;
    font-size: var(--text-sm, 0.875rem);
    text-decoration: none;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(10px);
}

.reference-card:hover .btn-view {
    transform: translateY(0);
}

.btn-view:hover {
    background: #fff;
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* === CONTENT === */
.reference-content {
    padding: var(--space-5, 1.25rem);
}

.reference-title {
    font-size: var(--text-lg, 1.125rem);
    font-weight: 600;
    color: var(--dark, #0C0D0A);
    margin-bottom: var(--space-2, 0.5rem);
    transition: color 0.2s;
}

.reference-card:hover .reference-title {
    color: var(--primary-dark, #5ba3a3);
}

.reference-description {
    font-size: var(--text-sm, 0.875rem);
    color: var(--neutral-600, #475569);
    line-height: var(--leading-relaxed, 1.625);
    margin-bottom: var(--space-4, 1rem);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* === TAGS === */
.reference-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2, 0.5rem);
}

.tag {
    padding: var(--space-1, 0.25rem) var(--space-3, 0.75rem);
    background: var(--neutral-100, #f1f5f9);
    color: var(--neutral-600, #475569);
    font-size: var(--text-xs, 0.75rem);
    font-weight: 500;
    border-radius: var(--radius-full, 9999px);
    transition: all 0.2s;
}

.tag:hover {
    background: var(--primary, #A9D9D4);
    color: var(--dark, #0C0D0A);
}

/* === FEATURED CARD === */
.reference-card.is-featured {
    border-color: var(--primary, #A9D9D4);
}

.reference-card.is-featured::after {
    content: '';
    position: absolute;
    top: var(--space-3, 0.75rem);
    right: var(--space-3, 0.75rem);
    width: 24px;
    height: 24px;
    background: var(--primary, #A9D9D4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

/* === CTA SECTION === */
.section-cta {
    margin-top: var(--space-8, 2rem);
}

.btn-primary-new {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2, 0.5rem);
    padding: var(--space-4, 1rem) var(--space-8, 2rem);
    background: linear-gradient(135deg, var(--primary, #A9D9D4) 0%, var(--primary-hover, #80bfbf) 100%);
    color: var(--dark, #0C0D0A);
    font-size: var(--text-base, 1rem);
    font-weight: 600;
    border-radius: var(--radius-lg, 0.75rem);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px rgba(169, 217, 212, 0.4);
}

.btn-primary-new:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(169, 217, 212, 0.5);
    color: var(--dark, #0C0D0A);
}

.btn-primary-new i {
    transition: transform 0.2s;
}

.btn-primary-new:hover i {
    transform: translateX(4px);
}

/* === REFERENCE DETAIL PAGE === */
.reference-detail {
    padding-top: var(--space-8, 2rem);
}

.reference-hero {
    position: relative;
    width: 100%;
    height: 60vh;
    min-height: 400px;
    max-height: 600px;
    overflow: hidden;
    border-radius: var(--radius-2xl, 1.5rem);
    margin-bottom: var(--space-8, 2rem);
}

.reference-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.reference-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
}

.reference-info {
    background: var(--surface-primary, #fff);
    border-radius: var(--radius-xl, 1rem);
    padding: var(--space-6, 1.5rem);
    border: 1px solid var(--border-light, rgba(0, 0, 0, 0.05));
    margin-bottom: var(--space-6, 1.5rem);
}

.reference-info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3, 0.75rem);
    padding: var(--space-3, 0.75rem) 0;
    border-bottom: 1px solid var(--border-light, rgba(0, 0, 0, 0.05));
}

.reference-info-item:last-child {
    border-bottom: none;
}

.reference-info-item i {
    color: var(--primary-dark, #5ba3a3);
    font-size: 1.25rem;
    width: 24px;
}

.reference-info-label {
    font-size: var(--text-xs, 0.75rem);
    color: var(--neutral-500, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1, 0.25rem);
}

.reference-info-value {
    font-weight: 500;
    color: var(--dark, #0C0D0A);
}

/* Gallery Grid */
.reference-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4, 1rem);
    margin: var(--space-8, 2rem) 0;
}

@media (max-width: 768px) {
    .reference-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

.gallery-item {
    position: relative;
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-lg, 0.75rem);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    transition: background 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-item:hover::after {
    background: rgba(0, 0, 0, 0.2);
}

/* Testimonial */
.reference-testimonial {
    background: linear-gradient(135deg, var(--neutral-50, #f8fafc) 0%, var(--neutral-100, #f1f5f9) 100%);
    border-radius: var(--radius-xl, 1rem);
    padding: var(--space-8, 2rem);
    margin: var(--space-8, 2rem) 0;
    position: relative;
}

.reference-testimonial::before {
    content: '"';
    position: absolute;
    top: var(--space-4, 1rem);
    left: var(--space-6, 1.5rem);
    font-family: Georgia, serif;
    font-size: 4rem;
    color: var(--primary, #A9D9D4);
    opacity: 0.5;
    line-height: 1;
}

.testimonial-text {
    font-size: var(--text-xl, 1.25rem);
    font-style: italic;
    color: var(--neutral-700, #334155);
    line-height: var(--leading-relaxed, 1.625);
    margin-bottom: var(--space-4, 1rem);
    padding-left: var(--space-8, 2rem);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-3, 0.75rem);
    padding-left: var(--space-8, 2rem);
}

.testimonial-author-name {
    font-weight: 600;
    color: var(--dark, #0C0D0A);
}

.testimonial-author-position {
    font-size: var(--text-sm, 0.875rem);
    color: var(--neutral-500, #64748b);
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2, 0.5rem);
    color: var(--neutral-600, #475569);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: var(--space-6, 1.5rem);
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--primary-dark, #5ba3a3);
}

.back-link i {
    transition: transform 0.2s;
}

.back-link:hover i {
    transform: translateX(-4px);
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    .reference-card,
    .reference-image,
    .btn-view,
    .reference-card::before,
    .gallery-item,
    .gallery-item img {
        transition: none;
        animation: none;
    }

    .reference-card {
        opacity: 1;
        transform: none;
    }
}