/* A* Solver Project Specific Styles */

.solver-main {
    padding-top: 70px;
}

/* Project Header */
.project-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.project-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.project-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.project-meta {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.meta-item {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Demo Section */
.demo-section {
    padding: 80px 0;
    background-color: #f9fafb;
}

.section-header {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.section-header h2 {
    margin: 0;
}

.github-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: #1f2937;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.github-link:hover {
    background: #374151;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    color: white;
}

.github-link svg {
    flex-shrink: 0;
}

.demo-description {
    font-size: 1.1rem;
    color: #4b5563;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

.demo-container {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.screenshot-section {
    background: white;
    border-radius: 12px;
    padding: 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.screenshot-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 400px;
    align-items: center;
}

.screenshot-image {
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-text {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.screenshot-text h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.screenshot-placeholder {
    background: linear-gradient(135deg, #e5e7eb 0%, #d1d5db 100%);
    border: 2px dashed #9ca3af;
    border-radius: 8px;
    padding: 3rem 2rem;
    text-align: center;
    color: #6b7280;
    width: 100%;
    max-width: 500px;
}

.screenshot-placeholder p {
    margin: 0.5rem 0;
    font-weight: 500;
}

.screenshot-placeholder p:first-child {
    font-size: 1.2rem;
    color: #374151;
}

.screenshot-caption {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.screenshot-caption:last-child {
    margin-bottom: 0;
}

/* Image and Video Styling */
.interface-screenshot,
.algorithm-video {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 500px;
}

.algorithm-video {
    background: #f3f4f6;
}

/* Performance Carousel */
.performance-carousel {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    color: #374151;
}

.carousel-arrow:hover {
    background: white;
    color: #2563eb;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.carousel-arrow-prev {
    left: 10px;
}

.carousel-arrow-next {
    right: 10px;
}

.carousel-arrow svg {
    width: 20px;
    height: 20px;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 350px;
    overflow: hidden;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s ease-in-out;
    display: flex;
    flex-direction: column;
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.carousel-slide.prev {
    transform: translateX(-100%);
}

.carousel-slide img {
    width: 100%;
    height: calc(100% - 40px);
    object-fit: cover;
    border-radius: 8px 8px 0 0;
}

.slide-caption {
    padding: 10px 15px;
    background: #f8f9fa;
    color: #374151;
    font-weight: 500;
    font-size: 0.9rem;
    text-align: center;
    border-top: 1px solid #e5e7eb;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 15px;
    background: #f8f9fa;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #d1d5db;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: #2563eb;
    transform: scale(1.2);
}

.dot:hover {
    background: #6b7280;
}

/* Alternating layout styles */
.alternating-left .screenshot-content {
    grid-template-columns: 1fr 1fr;
}

.alternating-right .screenshot-content {
    grid-template-columns: 1fr 1fr;
}

.alternating-right .screenshot-text {
    order: 1;
}

.alternating-right .screenshot-image {
    order: 2;
}

.alternating-left .screenshot-image {
    order: 1;
}

.alternating-left .screenshot-text {
    order: 2;
}

/* Technical Section */
.technical-section {
    padding: 80px 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.tech-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #2563eb;
}

.tech-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.tech-card p {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.tech-card ul {
    color: #4b5563;
    line-height: 1.6;
    padding-left: 1.5rem;
}

.tech-card li {
    margin-bottom: 0.5rem;
}

/* Performance Table */
.performance-table {
    margin: 1.5rem 0;
    overflow-x: auto;
}

.performance-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.performance-table th,
.performance-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.performance-table th {
    background-color: #f3f4f6;
    font-weight: 600;
    color: #374151;
}

.performance-table td {
    color: #4b5563;
}

.performance-table tr:last-child td {
    border-bottom: none;
}

/* Code Section */
.code-section {
    background: #1f2937;
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
}

.code-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.code-section p {
    color: #d1d5db;
    margin-bottom: 1.5rem;
}

.code-section pre {
    background: #111827;
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid #374151;
}

.code-section code {
    color: #e5e7eb;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Usage Section */
.usage-section {
    padding: 80px 0;
    background-color: #f9fafb;
}

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

.usage-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.usage-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.usage-card p {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.usage-card ul {
    color: #4b5563;
    line-height: 1.6;
    padding-left: 1.5rem;
}

.usage-card li {
    margin-bottom: 0.5rem;
}

.code-block {
    background: #f3f4f6;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    border-left: 4px solid #2563eb;
}

.code-block p {
    margin: 0.5rem 0;
    font-weight: 500;
    color: #374151;
}

.code-container {
    position: relative;
    display: flex;
    align-items: center;
    background: #1f2937;
    border-radius: 4px;
    margin: 0.5rem 0;
}

.code-container code {
    background: transparent;
    color: #e5e7eb;
    padding: 0.5rem 1rem;
    font-family: 'Courier New', monospace;
    flex: 1;
    margin: 0;
    word-break: break-all;
    overflow-wrap: break-word;
}

.copy-btn {
    background: #374151;
    border: none;
    color: #9ca3af;
    padding: 0.5rem;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
}

.copy-btn:hover {
    background: #4b5563;
    color: #e5e7eb;
}

.copy-btn.copied {
    background: #059669;
    color: white;
}

.code-block code:not(.code-container code) {
    background: #1f2937;
    color: #e5e7eb;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    display: block;
    margin: 0.5rem 0;
}

/* Links Section */
.links-section {
    padding: 80px 0;
}

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

.resource-link {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #2563eb;
}

.resource-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.resource-link h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.resource-link p {
    color: #4b5563;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .project-header h1 {
        font-size: 2.5rem;
    }
    
    .project-subtitle {
        font-size: 1.1rem;
    }
    
    .project-meta {
        justify-content: center;
    }
    
    /* Stack alternating layout on mobile */
    .screenshot-content {
        grid-template-columns: 1fr !important;
        min-height: auto;
    }
    
    .alternating-left .screenshot-image,
    .alternating-right .screenshot-image {
        order: 1 !important;
    }
    
    .alternating-left .screenshot-text,
    .alternating-right .screenshot-text {
        order: 2 !important;
    }
    
    .screenshot-image,
    .screenshot-text {
        padding: 1.5rem;
    }
    
    .screenshot-placeholder {
        padding: 2rem 1rem;
        max-width: none;
    }
    
    /* Stack section header on mobile */
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .github-link {
        align-self: stretch;
        justify-content: center;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .usage-grid {
        grid-template-columns: 1fr;
    }
    
    .resource-links {
        grid-template-columns: 1fr;
    }
    
    .code-section {
        padding: 1.5rem;
    }
    
    .code-section pre {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .project-header {
        padding: 60px 0;
    }
    
    .project-header h1 {
        font-size: 2rem;
    }
    
    .demo-section,
    .technical-section,
    .usage-section,
    .links-section {
        padding: 60px 0;
    }
    
    .screenshot-section,
    .tech-card,
    .usage-card {
        padding: 1.5rem;
    }
}