/* Project Page Styles */

/* Project Hero Section */
.project-hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f4c75 100%);
}

.project-hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.project-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
            135deg,
            rgba(15, 23, 42, 0.8) 0%,
            rgba(30, 41, 59, 0.6) 50%,
            rgba(15, 76, 117, 0.8) 100%
    );
    animation: projectHeroShift 12s ease-in-out infinite alternate;
}

@keyframes projectHeroShift {
    0% {
        background: linear-gradient(
                135deg,
                rgba(15, 23, 42, 0.8) 0%,
                rgba(30, 41, 59, 0.6) 50%,
                rgba(15, 76, 117, 0.8) 100%
        );
    }
    100% {
        background: linear-gradient(
                225deg,
                rgba(15, 76, 117, 0.8) 0%,
                rgba(44, 122, 44, 0.6) 50%,
                rgba(15, 23, 42, 0.8) 100%
        );
    }
}

.project-hero-video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
            radial-gradient(circle at 20% 30%, rgba(44, 122, 44, 0.1) 0%, transparent 50%),
            radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
            radial-gradient(circle at 40% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    animation: float 8s ease-in-out infinite;
}

.project-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--text-white);
    max-width: 900px;
    animation: fadeInUp 1s ease;
}

.project-badge {
    display: inline-block;
    background: rgba(44, 122, 44, 0.2);
    color: #64ffda;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(100, 255, 218, 0.3);
    backdrop-filter: blur(10px);
}

.project-hero-title {
    font-size: var(--fs-6xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(45deg, #64ffda, #2dd4bf, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-hero-description {
    font-size: var(--fs-xl);
    line-height: 1.6;
    margin-bottom: var(--spacing-4xl);
    opacity: 0.9;
}

.project-hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
    flex-wrap: wrap;
}

.project-hero-stats .stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 140px;
    transition: all var(--transition-normal);
}

.project-hero-stats .stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.project-hero-stats .stat-number {
    font-size: var(--fs-3xl);
    font-weight: 800;
    color: #64ffda;
    margin-bottom: var(--spacing-sm);
}

.project-hero-stats .stat-label {
    font-size: var(--fs-sm);
    opacity: 0.8;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    animation: fadeInUp 1s ease 1s both;
}

.scroll-indicator span {
    display: block;
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: rgba(255, 255, 255, 0.5);
    margin: 0 auto;
    position: relative;
    animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    border-right: 2px solid rgba(255, 255, 255, 0.7);
    border-bottom: 2px solid rgba(255, 255, 255, 0.7);
    transform: translateX(-50%) rotate(45deg);
}

/* Section Common Styles */
.section-title {
    text-align: center;
    font-size: var(--fs-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-3xl);
    color: var(--primary-green);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

/* Project Overview */
.project-overview {
    background: var(--bg-light);
}

.overview-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.overview-intro {
    font-size: var(--fs-lg);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-green);
    box-shadow: var(--shadow-light);
}

.overview-highlights {
    display: grid;
    gap: var(--spacing-xl);
}

.highlight-item {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.highlight-item h4 {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.highlight-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* System Diagram */
.system-diagram {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium);
    text-align: center;
}

.diagram-title {
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-xl);
}

.diagram-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.diagram-layer {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary-green);
    transition: all var(--transition-normal);
}

.diagram-layer:hover {
    background: rgba(44, 122, 44, 0.05);
    transform: scale(1.02);
}

.layer-title {
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.layer-items {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.layer-items span {
    background: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    box-shadow: var(--shadow-light);
}

/* System Components */
.system-components {
    background: white;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.component-card {
    background: var(--bg-light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid rgba(44, 122, 44, 0.1);
}

.component-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
    background: white;
}

.component-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.component-card h3 {
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-lg);
}

.component-details p {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.component-details ul {
    list-style: none;
    text-align: left;
}

.component-details li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.component-details li::before {
    content: '•';
    color: var(--primary-green);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Key Features */
.key-features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    gap: var(--spacing-4xl);
    max-width: 1000px;
    margin: 0 auto;
}

.feature-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    align-items: center;
    background: white;
    padding: var(--spacing-3xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.feature-item.reverse {
    grid-template-columns: 2fr 1fr;
}

.feature-item.reverse .feature-visual {
    order: 2;
}

.feature-item.reverse .feature-content {
    order: 1;
}

.feature-visual {
    text-align: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    color: white;
}

.feature-icon-large {
    font-size: 5rem;
    margin-bottom: var(--spacing-lg);
}

.feature-content h3 {
    font-size: var(--fs-2xl);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-lg);
}

.feature-content p {
    font-size: var(--fs-base);
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.feature-tech {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tech-tag {
    background: rgba(44, 122, 44, 0.1);
    color: var(--primary-green);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: 500;
    border: 1px solid rgba(44, 122, 44, 0.2);
}

/* Technology Stack */
.tech-stack {
    background: white;
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.tech-category {
    background: var(--bg-light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.tech-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.tech-category h3 {
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.tech-items {
    display: grid;
    gap: var(--spacing-md);
}

.tech-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.tech-item:hover {
    background: rgba(44, 122, 44, 0.05);
    transform: translateX(5px);
}

/* YOLOv8 특별 강조 */
.tech-item.highlight-tech {
    background: linear-gradient(45deg, rgba(44, 122, 44, 0.1), rgba(59, 130, 246, 0.1));
    border: 2px solid var(--primary-green);
    position: relative;
}

.tech-item.highlight-tech::before {
    content: '🚀 NEW';
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--primary-green);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: 600;
}

.tech-item.highlight-tech:hover {
    background: linear-gradient(45deg, rgba(44, 122, 44, 0.2), rgba(59, 130, 246, 0.2));
    transform: translateX(10px) scale(1.05);
    box-shadow: 0 4px 15px rgba(44, 122, 44, 0.3);
}

.tech-logo {
    font-size: var(--fs-xl);
    width: 40px;
    text-align: center;
}

.tech-item span {
    font-weight: 500;
    color: var(--text-secondary);
}

/* Project Goals */
.project-goals {
    background: var(--bg-light);
}

.goals-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.goals-main h3 {
    font-size: var(--fs-2xl);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-lg);
}

.goals-description {
    font-size: var(--fs-lg);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
}

.goals-timeline {
    display: grid;
    gap: var(--spacing-xl);
}

.goal-phase {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
}

.phase-number {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--fs-lg);
    flex-shrink: 0;
}

.phase-content h4 {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.phase-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.phase-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.phase-status.current {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.phase-status.upcoming {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.phase-status.future {
    background: rgba(156, 163, 175, 0.1);
    color: #6b7280;
}

/* Goals Metrics */
.goals-metrics h3 {
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.metrics-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.metric-item {
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-green);
    transition: all var(--transition-normal);
}

.metric-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(44, 122, 44, 0.4);
}

.metric-value {
    font-size: var(--fs-2xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.metric-label {
    font-size: var(--fs-sm);
    opacity: 0.9;
}

/* Project CTA */
.project-cta {
    background: var(--primary-gradient);
    color: white;
    text-align: center;
}

.project-cta .cta-content h2 {
    font-size: var(--fs-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.project-cta .cta-content p {
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-3xl);
    opacity: 0.9;
}

.project-cta .cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.project-cta .cta-buttons .btn {
    min-width: 180px;
}

.project-cta .btn-primary {
    background: white;
    color: var(--primary-green);
}

.project-cta .btn-primary:hover {
    background: #f8f9fa;
    transform: translateY(-3px);
}

.project-cta .btn-outline {
    border-color: white;
    color: white;
}

.project-cta .btn-outline:hover {
    background: white;
    color: var(--primary-green);
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    font-size: var(--fs-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--secondary-green);
}

.footer-brand p {
    color: #94a3b8;
    font-size: var(--fs-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--secondary-green);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    color: #6b7280;
    font-size: var(--fs-sm);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .overview-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }

    .goals-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }

    .feature-item,
    .feature-item.reverse {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .feature-item.reverse .feature-visual,
    .feature-item.reverse .feature-content {
        order: 0;
    }
}

@media (max-width: 768px) {
    .project-hero {
        height: 80vh;
        min-height: 600px;
    }

    .project-hero-title {
        font-size: var(--fs-4xl);
    }

    .project-hero-description {
        font-size: var(--fs-lg);
    }

    .project-hero-stats {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: var(--fs-3xl);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .project-hero-title {
        font-size: var(--fs-3xl);
    }

    .project-hero-description {
        font-size: var(--fs-base);
    }

    .project-cta .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .project-cta .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-20px);
        opacity: 0.6;
    }
}

@keyframes scrollBounce {
    0%, 100% {
        opacity: 0.5;
        transform: translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateY(10px);
    }
}