/**
 * Related Projects Navigation - Modern Styles
 * Premium design with animations and responsive layout
 */

.related-projects-navigation {
    margin-top: 80px;
    margin-bottom: 60px;
    padding: 0 15px;
}

.related-projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Card Base Styles */
.project-nav-card {
    position: relative;
    display: block;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    min-height: 280px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.project-nav-card.placeholder {
    visibility: hidden;
}

/* Card with Thumbnail */
.project-nav-card.has-thumbnail {
    background: #000;
}

.project-nav-card.has-thumbnail .card-thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.project-nav-card.has-thumbnail .card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-nav-card.has-thumbnail:hover .card-thumbnail img {
    transform: scale(1.08);
}

.project-nav-card.has-thumbnail .thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top,
            rgba(0, 0, 0, 0.85) 0%,
            rgba(0, 0, 0, 0.4) 50%,
            rgba(0, 0, 0, 0.2) 100%);
    transition: opacity 0.4s ease;
}

.project-nav-card.has-thumbnail:hover .thumbnail-overlay {
    background: linear-gradient(to top,
            rgba(0, 0, 0, 0.9) 0%,
            rgba(0, 0, 0, 0.5) 50%,
            rgba(0, 0, 0, 0.3) 100%);
}

/* Card without Thumbnail - Modern Gradients */
.project-nav-card.no-thumbnail {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
}

.project-nav-card.no-thumbnail::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.project-nav-card.no-thumbnail:hover::before {
    opacity: 1;
}

/* Alternate gradient for next project */
.project-nav-card.next-project.no-thumbnail {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* Card Content */
.project-nav-card .card-content {
    position: relative;
    z-index: 2;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    height: 100%;
    min-height: 280px;
}

.project-nav-card.has-thumbnail .card-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

/* Direction Label */
.card-direction {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 12px;
    opacity: 0.9;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.project-nav-card.has-thumbnail .card-direction {
    color: #fff;
}

.project-nav-card.no-thumbnail .card-direction {
    color: rgba(255, 255, 255, 0.95);
}

.card-direction i {
    font-size: 18px;
}

.project-nav-card:hover .card-direction {
    opacity: 1;
}

/* Previous Project - Arrow moves left on hover */
.project-nav-card.prev-project:hover .card-direction i {
    transform: translateX(-4px);
}

/* Next Project - Arrow moves right on hover */
.project-nav-card.next-project:hover .card-direction i {
    transform: translateX(4px);
}

.project-nav-card.next-project .card-direction {
    flex-direction: row-reverse;
}

/* Card Title */
.card-title {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
    margin: 0;
    transition: transform 0.3s ease;
}

.project-nav-card.has-thumbnail .card-title {
    color: #fff;
}

.project-nav-card.no-thumbnail .card-title {
    color: #fff;
}

.project-nav-card:hover .card-title {
    transform: translateY(-2px);
}

/* Hover Effect - Lift and Shadow */
.project-nav-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

/* Responsive Design */
@media (max-width: 768px) {
    .related-projects-navigation {
        margin-top: 60px;
        margin-bottom: 40px;
    }

    .related-projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .project-nav-card {
        min-height: 220px;
    }

    .project-nav-card .card-content {
        padding: 24px;
        min-height: 220px;
    }

    .card-title {
        font-size: 20px;
    }

    .card-direction {
        font-size: 12px;
    }
}

/* Small devices */
@media (max-width: 480px) {
    .project-nav-card {
        min-height: 200px;
    }

    .project-nav-card .card-content {
        padding: 20px;
        min-height: 200px;
    }

    .card-title {
        font-size: 18px;
    }
}

/* Dark mode support (if theme has dark mode) */
@media (prefers-color-scheme: dark) {
    .project-nav-card {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    .project-nav-card:hover {
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    }
}

/* Animation on load */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.project-nav-card {
    animation: fadeInUp 0.6s ease-out;
}

.project-nav-card.next-project {
    animation-delay: 0.1s;
}