/* ===================================
   ACCESSIBILITY UTILITIES
=================================== */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===================================
   PROJECT BANNER
=================================== */

.project-banner {
    position: relative;
    padding: 120px 0 100px;
    text-align: center;
    color: #fff;
    overflow: hidden;
}

/* Background Image */
.project-banner img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

/* Dark Overlay */
.project-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    z-index: 2;
}

/* Content stays above overlay */
.project-banner .container {
    position: relative;
    z-index: 3;
}

.project-banner h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.project-banner p {
    font-size: 1.1rem;
    opacity: 0.9;
    letter-spacing: 0.5px;
}

/* ===================================
   PROJECT DETAILS SECTION
=================================== */

.project-details {
    padding: 100px 0;
}

.project-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}


/* ===================================
   PROJECT CONTENT (LEFT)
=================================== */

.project-content h2 {
    font-size: 1.9rem;
    margin-bottom: 20px;
    color: var(--color-dark);
}

.project-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 30px;
}

.project-content h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.project-content ul {
    margin-bottom: 30px;
    padding-left: 20px;
}

.project-content ul li {
    margin-bottom: 10px;
    color: #555;
}

.project-content .btn {
    margin-top: 10px;
}


/* ===================================
   SIDEBAR
=================================== */

.project-sidebar {
    position: sticky;
    top: 120px;
}

.project-info-box {
    background-color: var(--color-gray);
    padding: 35px;
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-light);
    transition: 0.3s ease;
}

.project-info-box:hover {
    box-shadow: var(--shadow-medium);
}

.project-info-box h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.project-info-box p {
    margin-bottom: 14px;
    color: #555;
    font-size: 0.95rem;
}

.project-info-box strong {
    color: var(--color-dark);
}


/* ===================================
   PROJECT GALLERY
=================================== */

.project-gallery {
    padding: 100px 0;
    background-color: var(--color-light);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.gallery-grid img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.gallery-grid img:hover {
    transform: scale(1.04);
    box-shadow: var(--shadow-medium);
}


/* ===================================
   FOCUS STATES (ACCESSIBILITY)
=================================== */

a:focus,
button:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
}


/* ===================================
   RESPONSIVE DESIGN
=================================== */

@media (max-width: 992px) {

    .project-layout {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .project-sidebar {
        position: static;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {

    .project-banner h1 {
        font-size: 2rem;
    }

    .project-details,
    .project-gallery {
        padding: 70px 0;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid img {
        height: 220px;
    }
}