/* Breadcrumb */
.breadcrumb {
    background: #f5f5f7;
    padding: 100px 0 20px;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb-nav a {
    color: #0066cc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-nav a:hover {
    color: #004499;
}

.separator {
    color: #86868b;
}

.current {
    color: #1d1d1f;
    font-weight: 500;
}

/* Project Header */
.project-header {
    padding: 40px 0 80px;
    background: #f5f5f7;
}

.project-header-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.project-category {
    color: #0066cc;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.project-description {
    font-size: 1.1rem;
    color: #515154;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.project-meta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.meta-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid #e0e0e0;
}

.meta-label {
    font-weight: 600;
    color: #1d1d1f;
}

.meta-value {
    color: #515154;
}

.project-image-main {
    display: flex;
    justify-content: center;
    align-items: center;
}

.main-image {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 16/10;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

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

.placeholder-main {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 20px;
}

.placeholder-main h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.placeholder-main p {
    font-size: 1rem;
    opacity: 0.9;
}

/* Project Details */
.project-details {
    padding: 80px 0;
}

.details-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.details-content h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 2rem;
}

.detail-section {
    margin-bottom: 2rem;
}

.detail-section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 1rem;
}

.detail-section p {
    color: #515154;
    line-height: 1.7;
    font-size: 1rem;
}

.details-images h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 1.5rem;
}

.process-images {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.process-item {
    text-align: center;
}

.process-image {
    width: 100%;
    height: 120px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 0.8rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.placeholder-process {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1976d2;
    font-weight: 600;
}

.process-item p {
    font-size: 0.9rem;
    color: #86868b;
    font-weight: 500;
}

/* Project Navigation */
.project-navigation {
    background: #f5f5f7;
    padding: 40px 0;
}

.nav-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 20px;
    border-radius: 15px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    color: #1d1d1f;
}

.prev-btn, .next-btn {
    background: white;
    border: 1px solid #e0e0e0;
}

.prev-btn:hover, .next-btn:hover {
    background: #0066cc;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 204, 0.3);
}

.back-btn {
    background: #0066cc;
    color: white;
}

.back-btn:hover {
    background: #004499;
    transform: translateY(-2px);
}

.nav-arrow {
    font-size: 1.2rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    .project-header-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .project-title {
        font-size: 2rem;
    }

    .project-meta {
        align-items: center;
    }

    .details-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .nav-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-btn {
        width: 100%;
        justify-content: center;
    }

    .project-header {
        padding: 20px 0 60px;
    }

    .breadcrumb {
        padding: 80px 0 15px;
    }

    .breadcrumb-nav {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .main-image {
        max-width: 300px;
    }

    .project-title {
        font-size: 1.8rem;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }
}