/* ================================
   Back Button
   ================================ */

.back-button-wrapper {
    background-color: var(--color-bg-secondary);
    padding: 1.5rem 0;
    margin-top: 80px;
    border-bottom: 1px solid rgba(255, 102, 0, 0.1);
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.back-button:hover {
    color: var(--color-accent);
    transform: translateX(-5px);
}

.back-button svg {
    transition: var(--transition-smooth);
}

.back-button:hover svg {
    transform: translateX(-3px);
}

/* ================================
   Project Hero
   ================================ */

.project-hero {
    padding: 6rem 0 4rem;
    background: radial-gradient(ellipse at top, rgba(255, 102, 0, 0.1) 0%, transparent 50%);
    position: relative;
}

.project-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255, 102, 0, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 102, 0, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

.project-hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.project-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.project-category {
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.project-year {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.project-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.project-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.project-tags {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tag {
    background-color: rgba(255, 102, 0, 0.1);
    border: 1px solid rgba(255, 102, 0, 0.3);
    color: var(--color-accent);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ================================
   Project Overview
   ================================ */

.project-overview {
    padding: 4rem 0;
    background-color: var(--color-bg-secondary);
}

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

.overview-item {
    text-align: center;
    padding: 2rem;
    background-color: rgba(255, 102, 0, 0.03);
    border-radius: 12px;
    border: 1px solid rgba(255, 102, 0, 0.1);
    transition: var(--transition-smooth);
}

.overview-item:hover {
    background-color: rgba(255, 102, 0, 0.08);
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.overview-item h3 {
    color: var(--color-accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}

.overview-item p {
    color: var(--color-text-primary);
    font-size: 1.1rem;
    font-weight: 500;
}

/* ================================
   Project Showcase
   ================================ */

.project-showcase {
    padding: 6rem 0;
    background-color: var(--color-bg-primary);
}

.showcase-main {
    margin-bottom: 3rem;
}

.device-mockup.desktop-full {
    max-width: 1000px;
    margin: 0 auto;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

/* Device Mockups (reusing from portfolio.css) */
.device-mockup {
    position: relative;
}

.device-frame {
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.8),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
}

.device-mockup.desktop-full .device-frame {
    border-radius: 12px 12px 0 0;
}

.device-mockup.desktop-full .device-frame::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(180deg, #2a2a2a, #1a1a1a);
    border-radius: 0 0 12px 12px;
}

.device-mockup.mobile .device-frame {
    border-radius: 30px;
    padding: 1rem 0.8rem;
    background: linear-gradient(145deg, #1a1a1a, #0a0a0a);
}

.device-mockup.mobile .device-frame::before {
    content: '';
    position: absolute;
    top: 0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: #333;
    border-radius: 2px;
}

.device-screen {
    background-color: #000;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/10;
}

.device-mockup.mobile .device-screen {
    aspect-ratio: 9/19.5;
    border-radius: 20px;
}

.screenshot-scroll {
    height: 100%;
    overflow: hidden;
    position: relative;
}

.screenshot-content {
    min-height: 200%;
    transition: transform 8s ease-in-out;
}

.device-mockup:hover .screenshot-content {
    transform: translateY(-50%);
}

.mobile-scroll .screenshot-content {
    min-height: 300%;
}

.device-mockup:hover .mobile-scroll .screenshot-content {
    transform: translateY(-66%);
}

/* Mock Elements */
.mock-header {
    height: 60px;
    background: linear-gradient(90deg, rgba(255, 102, 0, 0.2), rgba(255, 102, 0, 0.1));
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 102, 0, 0.2);
}

.mock-hero {
    height: 300px;
    background: radial-gradient(circle at center, rgba(255, 102, 0, 0.15), transparent);
    margin-bottom: 3rem;
}

.mock-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding: 2rem;
    margin-bottom: 3rem;
}

.mock-products::before,
.mock-products::after {
    content: '';
    height: 200px;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.mock-features {
    height: 400px;
    background: linear-gradient(180deg, transparent, rgba(255, 102, 0, 0.05), transparent);
    margin-bottom: 3rem;
}

.mock-footer {
    height: 150px;
    background-color: rgba(0, 0, 0, 0.5);
    border-top: 1px solid rgba(255, 102, 0, 0.1);
}

.mock-header-mobile {
    height: 60px;
    background: linear-gradient(90deg, rgba(255, 102, 0, 0.2), rgba(255, 102, 0, 0.1));
    margin-bottom: 1rem;
}

.mock-content-mobile {
    padding: 1rem;
}

.mock-content-mobile::before {
    content: '';
    display: block;
    height: 150px;
    background: radial-gradient(circle, rgba(255, 102, 0, 0.1), transparent);
    margin-bottom: 1rem;
    border-radius: 8px;
}

/* ================================
   Project Details Section
   ================================ */

.project-details-section {
    padding: 6rem 0;
    background-color: var(--color-bg-secondary);
}

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

.detail-block {
    background-color: var(--color-bg-primary);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 102, 0, 0.1);
    transition: var(--transition-smooth);
}

.detail-block:hover {
    border-color: rgba(255, 102, 0, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.detail-block.highlight {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, rgba(255, 102, 0, 0.05), rgba(255, 102, 0, 0.02));
}

.detail-icon {
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.detail-block h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
}

.detail-block p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 2rem;
}

.detail-list {
    list-style: none;
    padding: 0;
}

.detail-list li {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    padding-left: 2rem;
    position: relative;
    margin-bottom: 1rem;
}

.detail-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

/* Results Stats */
.results-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.5rem;
    margin-top: 2.5rem;
}

.stat-result {
    text-align: left;
    padding: 1.75rem 2rem;
    background: radial-gradient(circle at top left, rgba(255, 102, 0, 0.08), rgba(255, 102, 0, 0.02));
    border-radius: 14px;
    border: 1px solid rgba(255, 102, 0, 0.25);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
}

.stat-number {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.stat-label {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.results-stats + p {
    margin-top: 2.5rem;
}

/* ================================
   Technologies Section
   ================================ */

.technologies-section {
    padding: 6rem 0;
    background-color: var(--color-bg-primary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.tech-card {
    background-color: var(--color-bg-secondary);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 102, 0, 0.1);
    transition: var(--transition-smooth);
}

.tech-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.tech-card h4 {
    color: var(--color-accent);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tech-card ul {
    list-style: none;
    padding: 0;
}

.tech-card li {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 102, 0, 0.05);
}

.tech-card li:last-child {
    border-bottom: none;
}

/* ================================
   Testimonial Section
   ================================ */

.testimonial-section {
    padding: 6rem 0;
    background: radial-gradient(ellipse at center, rgba(255, 102, 0, 0.08) 0%, transparent 70%),
                var(--color-bg-secondary);
}

.testimonial-wrapper {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-quote {
    color: var(--color-accent);
    opacity: 0.2;
    margin-bottom: 2rem;
}

blockquote {
    margin: 0;
    padding: 0;
}

blockquote p {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    line-height: 1.8;
    font-weight: 300;
    font-style: italic;
    margin-bottom: 2rem;
}

blockquote footer {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

blockquote strong {
    color: var(--color-text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

blockquote span {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ================================
   Project Navigation
   ================================ */

.project-navigation {
    padding: 4rem 0;
    background-color: var(--color-bg-primary);
    border-top: 1px solid rgba(255, 102, 0, 0.1);
    display: none;
}

.nav-projects {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
}

.nav-project {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    background-color: var(--color-bg-secondary);
    border-radius: 12px;
    border: 1px solid rgba(255, 102, 0, 0.1);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.nav-project:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.nav-project.prev {
    text-align: left;
}

.nav-project.next {
    text-align: right;
    align-items: flex-end;
}

.nav-project.center {
    align-items: center;
    text-align: center;
    padding: 2rem;
}

.nav-label {
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-title {
    color: var(--color-text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.nav-icon {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

/* ================================
   Portfolio CTA
   ================================ */

.project-cta {
    background: radial-gradient(ellipse at center, rgba(255, 102, 0, 0.1) 0%, transparent 70%),
                var(--color-bg-secondary);
    padding: 8rem 0;
    text-align: center;
}

.project-cta .cta-content {
    max-width: 780px;
    margin: 0 auto;
    background: radial-gradient(circle at top left, rgba(255, 102, 0, 0.18), transparent 55%), var(--color-bg-primary);
    padding: 3rem 3.5rem;
    border-radius: 18px;
    border: 1px solid rgba(255, 102, 0, 0.35);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.9);
}

.project-cta .cta-content h2 {
    font-size: clamp(2.2rem, 4.4vw, 3.2rem);
    margin-bottom: 1.25rem;
    font-weight: 500;
}

.project-cta .cta-content p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
}

/* ================================
   Responsive Design
   ================================ */

@media (max-width: 968px) {
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .results-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-projects {
        grid-template-columns: 1fr;
    }
    
    .nav-project.next {
        text-align: left;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .project-hero {
        padding: 4rem 0 2rem;
    }
    
    .project-title {
        font-size: 2rem;
    }
    
    .project-subtitle {
        font-size: 1.1rem;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
    }
    
    .detail-block {
        padding: 2rem;
    }
    
    .results-stats {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    blockquote p {
        font-size: 1.2rem;
    }
}