:root {
        --primary-color: #2C5F6F;
        --dark: #1a1a1a;
        --light: #f8f9fa;
    }

    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        overflow-x: hidden;
        background: #f8f9fa !important;
        margin: 0;
        padding: 0;
    }

    /* Hero Section */
    .projects-hero {
        position: relative;
        height: 300px;
        overflow: hidden;
        border-radius: 20px;
        /* margin-bottom: 60px; */
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    }

    .projects-hero img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        filter: brightness(0.5);
    }

    .projects-hero-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(to bottom, rgba(44, 95, 111, 0.7), rgba(26, 26, 26, 0.7));
    }

    .projects-hero h1 {
        color: white;
        font-size: 3.5rem;
        font-weight: bold;
        text-transform: uppercase;
        letter-spacing: 3px;
        text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
        margin: 0;
        text-align: center;
        padding: 0 20px;
    }

    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(40px);
        }

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

    @keyframes fadeIn {
        from {
            opacity: 0;
        }

        to {
            opacity: 1;
        }
    }

    .back-btn {
        animation: fadeIn 0.9s ease-out;
    }

    .projects-hero {
        animation: fadeIn 0.9s ease-out;
    }

    .projects-section {
        animation: fadeIn 0.9s ease-out;
    }

    a:has(.project-card) {
        text-decoration: none;
        color: inherit;
    }

    /* Back Button */
    .back-btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--primary-color);
        color: white;
        padding: 12px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: 600;
        transition: all 0.3s ease;
        margin-bottom: 40px;
        box-shadow: 0 5px 15px rgba(44, 95, 111, 0.3);
    }

    .back-btn:hover {
        background: white;
        color: var(--primary-color);
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(44, 95, 111, 0.4);
    }

    .back-btn i {
        transition: transform 0.3s ease;
    }

    .back-btn:hover i {
        transform: translateX(-5px);
    }

    /* Projects Grid */
    .projects-section {
        padding: 40px 0 80px;
    }

    .projects-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: 30px;
        max-width: 1400px;
        margin: 0 auto;
    }

    .project-card {
        position: relative;
        background: white;
        border-radius: 20px;
        overflow: hidden;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        transition: all 0.4s ease;
        cursor: pointer;
        display: flex;
        flex-direction: column;
        height: 100%;
    }

    .project-card:hover {
        transform: translateY(-15px);
        box-shadow: 0 20px 40px rgba(44, 95, 111, 0.3);
    }

    .project-image {
        position: relative;
        height: 280px;
        overflow: hidden;
        flex-shrink: 0;
    }

    .project-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: all 0.5s ease;
    }

    .project-card:hover .project-image img {
        transform: scale(1.15);
    }

    .project-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(to top, rgba(44, 95, 111, 0.9) 0%, transparent 60%);
        opacity: 0;
        transition: all 0.4s ease;
        display: flex;
        align-items: flex-end;
        padding: 25px;
    }

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

    .project-category {
        position: absolute;
        top: 20px;
        right: 20px;
        background: var(--primary-color);
        color: white;
        padding: 8px 20px;
        border-radius: 25px;
        font-size: 0.9rem;
        font-weight: 600;
        z-index: 2;
        box-shadow: 0 5px 15px rgba(44, 95, 111, 0.4);
    }

    .project-content {
        padding: 25px;
        flex-grow: 1;
        display: flex;
        flex-direction: column;
    }

    .project-title {
        font-size: 1.3rem;
        font-weight: bold;
        color: var(--dark);
        margin-bottom: 10px;
        transition: color 0.3s ease;
        line-height: 1.4;
    }

    .project-card:hover .project-title {
        color: var(--primary-color);
    }

    .project-description {
        color: #666;
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 15px;
        flex-grow: 1;
    }

    .project-details {
        display: flex;
        gap: 20px;
        align-items: center;
        padding-top: 15px;
        border-top: 2px solid #f0f0f0;
        margin-top: auto;
    }

    .project-detail-item {
        display: flex;
        align-items: center;
        gap: 8px;
        color: #888;
        font-size: 0.9rem;
    }

    .project-detail-item i {
        color: var(--primary-color);
        font-size: 1rem;
    }

    .zoom-icon {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) scale(0);
        width: 60px;
        height: 60px;
        background: white;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary-color);
        font-size: 1.5rem;
        opacity: 0;
        transition: all 0.4s ease;
        z-index: 3;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    }

    .project-card:hover .zoom-icon {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }

    /* Filter Buttons */
    .filter-buttons {
        display: flex;
        justify-content: center;
        gap: 15px;
        margin-bottom: 50px;
        flex-wrap: wrap;
    }

    .filter-btn {
        background: white;
        color: var(--dark);
        padding: 12px 30px;
        border: 2px solid #e0e0e0;
        border-radius: 50px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .filter-btn:hover,
    .filter-btn.active {
        background: var(--primary-color);
        color: white;
        border-color: var(--primary-color);
        transform: translateY(-3px);
        box-shadow: 0 5px 15px rgba(44, 95, 111, 0.3);
    }

    /* Responsive */
    @media (max-width: 992px) {
        .projects-hero h1 {
            font-size: 2.8rem;
        }

        .projects-grid {
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
        }
    }

    @media (max-width: 768px) {
        .projects-hero {
            height: 250px;
        }

        .projects-hero h1 {
            font-size: 2.2rem;
        }

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

        .project-image {
            height: 250px;
        }

        .filter-buttons {
            gap: 10px;
        }

        .filter-btn {
            padding: 10px 20px;
            font-size: 0.9rem;
        }
    }

    @media (max-width: 576px) {
        .projects-hero {
            height: 200px;
        }

        .projects-hero h1 {
            font-size: 1.8rem;
        }
    }

    .lightbox {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.95);
        z-index: 9999;
        justify-content: center;
        align-items: center;
        animation: fadeIn 0.3s ease;
    }

    .lightbox.active {
        display: flex;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
        }

        to {
            opacity: 1;
        }
    }

    .lightbox-content {
        position: relative;
        max-width: 800px;
        max-height: 800px;
        animation: zoomIn 0.3s ease;
    }

    @keyframes zoomIn {
        from {
            transform: scale(0.8);
            opacity: 0;
        }

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

    .lightbox-content img {
        max-width: 100%;
        max-height: 85vh;
        object-fit: contain;
        border-radius: 8px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    }

    .lightbox-close {
        position: absolute;
        top: -50px;
        right: 0;
        background: var(--primary-color);
        color: white;
        border: none;
        width: 45px;
        height: 45px;
        border-radius: 50%;
        font-size: 1.5rem;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .lightbox-close:hover {
        background: #dc2626;
        transform: rotate(90deg);
    }

    .lightbox-prev,
    .lightbox-next {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        color: white;
        border: 2px solid rgba(255, 255, 255, 0.3);
        width: 55px;
        height: 55px;
        border-radius: 50%;
        font-size: 1.5rem;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .lightbox-prev:hover,
    .lightbox-next:hover {
        background: var(--primary-color);
        border-color: var(--primary-color);
        transform: translateY(-50%) scale(1.1);
    }

    .lightbox-prev {
        left: 30px;
    }

    .lightbox-next {
        right: 30px;
    }