.page-header {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: var(--white);
}

.page-header-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.page-header-video iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 56.25vw;
    min-height: 100vh;
    min-width: 177.77vh;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(31, 58, 85, 0.80), rgba(30, 57, 84, 0.75));
    z-index: 1;
}

.page-header-content {
    position: relative;
    z-index: 2;
    width: 100%;
    text-align: center;
}

.page-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.page-header p {
    font-size: 1.3rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

.about-content {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 80px;
}

.about-text h2 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.about-text p {
    margin-bottom: 1.5rem;
    line-height: 1.9;
    font-size: 1.1rem;
    color: #555;
}

.about-text p strong {
    color: var(--primary-color);
    font-weight: 600;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.about-image img:hover {
    transform: scale(1.02);
}

.values-section {
    margin: 100px 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.12);
    border-left-width: 6px;
}

.value-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.value-card p,
.value-card ul {
    color: #666;
    line-height: 1.8;
}

.why-choose {
    margin-top: 100px;
}

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

.detail-header {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-bottom: 60px;
}

.detail-info h1 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.detail-location {
    color: #7f8c8d;
    font-size: 1.2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-location svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.detail-description {
    line-height: 1.9;
    font-size: 1.1rem;
    color: #555;
}

.detail-features {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
}

.detail-features h3 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.detail-features ul {
    list-style: none;
}

.detail-features li {
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    color: #555;
    display: flex;
    align-items: center;
}

.detail-features li:last-child {
    border-bottom: none;
}

.detail-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.3rem;
    margin-right: 1rem;
    background: rgba(96, 157, 219, 0.1);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

@media (max-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.contact-section {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 1.8rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 1rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e8e8e8;
    border-radius: 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(96, 157, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-info {
    background: linear-gradient(135deg, #609ddb, #609ddb);
    color: var(--white);
    padding: 3rem;
    border-radius: 20px;
    height: fit-content;
    position: relative;
    overflow: hidden;
}

.contact-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.contact-info h2,
.contact-info h4 {
    position: relative;
    z-index: 1;
}

.contact-info h2 {
    margin-bottom: 2rem;
    font-size: 2rem;
}

.contact-item {
    margin-bottom: 2.5rem;
    display: flex;
    align-items: start;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.contact-item-icon {
    font-size: 1.5rem;
    min-width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-item p {
    opacity: 0.95;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .page-header {
        padding: 80px 0 50px;
    }

    .page-header h1 {
        font-size: 2.5rem;
    }

    .page-header p {
        font-size: 1.1rem;
    }

    .about-grid,
    .detail-header,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-text h2 {
        font-size: 2rem;
    }

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

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

    .detail-info h1 {
        font-size: 2rem;
    }

    .contact-form {
        padding: 2rem;
    }
}

.project-thumbnails {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
    width: 100%;
}

.project-thumbnails img {
    flex: 1;
    min-width: 120px;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid #ddd;
}

.project-thumbnails img:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(96, 157, 219, 0.3);
}