/* src/css/main.css */
/* Container */
.nav-container,
.projects-grid,
.about-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    background: var(--bg-nav);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: var(--font-size-small);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-heading);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: color var(--transition-base), text-shadow var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    padding-top: 50px;
}

.hero-background {
    position: absolute;
    top: auto;
    left: 0%;
    min-width: 107%;
    min-height: 100%;
    object-fit: fill;
    object-position: center;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.7) 0%, rgba(10, 10, 15, 0.123) 50%, rgba(10, 10, 15, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    text-align: center;
    z-index: 2;
    padding: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-h1-hero);
    font-weight: 900;
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading);
    color: var(--text-primary);
    text-shadow: 0 0 20px var(--neon-cyan), 0 0 40px var(--neon-purple);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: var(--font-size-h2);
    color: var(--text-secondary);
    letter-spacing: var(--letter-spacing-heading);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-small);
    color: var(--text-muted);
    animation: bounce 2s infinite;
    z-index: var(--z-base);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* Section Styling */
section {
    padding: var(--spacing-xl) 0;
}

.zone-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-h1-section);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: var(--letter-spacing-heading);
    color: var(--text-primary);
}

/* Footer */
.footer {
    padding: var(--spacing-md) 0;
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-small);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-container {
        gap: var(--spacing-sm);
    }

    .nav-link {
        font-size: 0.75rem;
        padding: var(--spacing-xs);
    }

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

    section {
        padding: var(--spacing-lg) 0;
    }
}

/* Gallery Zone */
.gallery-zone {
    background: rgba(10, 10, 15, 0.85);
}

/* Masonry layout using CSS columns - width-based, no column limit */
.gallery-grid {
    width: 100%;
    padding: 0 var(--spacing-sm);
    column-width: 400px; /* 2x size - columns auto-fill based on this width */
    column-gap: var(--spacing-sm);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid var(--neon-cyan);
    transition: border-width var(--transition-fast), box-shadow var(--transition-fast);
    break-inside: avoid;
    margin-bottom: var(--spacing-sm);
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.1), rgba(189, 0, 255, 0.1));
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: var(--z-base);
}

.gallery-item:hover::before {
    opacity: 1;
}

.gallery-item:hover {
    border-width: 4px;
    box-shadow: 0 0 20px var(--neon-cyan);
}

.gallery-item img {
    width: 100%;
    height: auto; /* Auto height preserves aspect ratio */
    display: block; /* Remove inline spacing */
    transition: transform var(--transition-slow);
}

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

.gallery-item.skeleton {
    background: linear-gradient(90deg, #1a1a2e 25%, #2a2a4e 50%, #1a1a2e 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Responsive Gallery - reduce column width on smaller screens */
@media (max-width: 768px) {
    .gallery-grid {
        column-width: 300px;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        column-width: 100%;
    }
}

/* Projects Zone */
.projects-zone {
    background: rgba(10, 10, 15, 0.85);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.project-panel {
    position: relative;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 2px solid var(--neon-purple);
    transition: z-index var(--transition-fast), border-color var(--transition-base),
                box-shadow var(--transition-base), transform var(--transition-fast);
    z-index: var(--z-base);
}

.project-panel:hover {
    z-index: var(--z-hover);
    border-color: var(--neon-pink);
    box-shadow: 0 0 30px rgba(189, 0, 255, 0.3);
}

.project-image {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.3);
}

.project-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    transition: text-shadow var(--transition-base);
}

.project-panel:hover .project-title {
    text-shadow: 0 0 10px var(--neon-pink);
}

.project-description {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Responsive Projects */
@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* About Zone */
.about-zone {
    background: rgba(10, 10, 15, 0.85);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    max-width: 900px;
    align-items: center;
}

.about-photo {
    width: 100%;
    max-width: 300px;
    height: auto;
    aspect-ratio: 3/4;
    border-radius: var(--radius-md);
    border: 3px solid var(--neon-cyan);
    box-shadow: 0 0 30px var(--neon-cyan);
    object-fit: cover;
    margin: 0;
}

.about-text {
    margin-bottom: var(--spacing-md);
}

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

/* Social links within about */
.about-text .social-links {
    justify-content: flex-start;
    margin-top: var(--spacing-md);
}

/* Mobile: stack layout */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-photo {
        max-width: 280px;
        margin: 0 auto;
    }

    .about-text .social-links {
        justify-content: center;
    }
}

/* Focus Styles */
.nav-link:focus-visible,
.btn:focus-visible,
.gallery-item:focus-visible,
.social-link:focus-visible,
.lightbox-close:focus-visible,
.lightbox-nav:focus-visible {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 2px;
}