/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --text-color: #0a0a0a;
    --text-light: #666;
    --text-lighter: #999;
    --bg-color: #ffffff;
    --border-color: #e8e8e8;
    --hover-bg: #f5f5f5;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --transition: all 0.2s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.01em;
}

/* Header */
header {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    padding: var(--spacing-sm) 0;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 400;
    transition: var(--transition);
    padding: 0.25rem 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-color);
    font-weight: 500;
}

.social-nav {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    transition: var(--transition);
}

.social-link:hover {
    color: var(--text-color);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Intro Section */
.intro-section {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.intro-section h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.name-highlight {
    font-weight: 600;
}

.intro-text {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
    max-width: 700px;
}

/* Content Section */
.content-section {
    padding: var(--spacing-lg) 0 var(--spacing-xl);
}

/* Filter Container */
.filter-container {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.filter-btn {
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    border-radius: 4px;
}

.filter-btn:hover {
    color: var(--text-color);
    background-color: var(--hover-bg);
}

.filter-btn.active {
    color: var(--text-color);
    font-weight: 500;
    background-color: var(--hover-bg);
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

@media (min-width: 769px) {
    .content-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: var(--spacing-lg);
    }
}

/* Content Items */
.content-item {
    position: relative;
    background-color: var(--bg-color);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.content-item--image {
    aspect-ratio: 1;
    overflow: hidden;
}

.content-item-link {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    outline: none;
}

.content-item-link:focus {
    outline: 2px solid var(--text-color);
    outline-offset: 2px;
}

.content-item-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.content-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    padding: var(--spacing-md);
    color: white;
    opacity: 0;
    transition: var(--transition);
    transform: translateY(10px);
}

.content-item--image:hover .content-item-overlay {
    opacity: 1;
    transform: translateY(0);
}

.content-item--image:hover .content-item-image {
    transform: scale(1.05);
}

.content-item-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.content-item-category {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

.content-item-title {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.3;
    margin: 0;
}

.content-item-meta {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Text-only content items */
.content-item-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-height: 150px;
}

.content-item-content:hover {
    background-color: var(--hover-bg);
}

.content-item-content .content-item-category {
    color: var(--text-lighter);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.content-item-content .content-item-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    line-height: 1.3;
    margin: 0;
}

.content-item-content .content-item-meta {
    font-size: 0.875rem;
    color: var(--text-light);
}

.content-item-description {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-top: var(--spacing-xs);
}

.content-item-author {
    font-size: 0.9375rem;
    color: var(--text-light);
    font-style: italic;
}

.content-item-status {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.5rem;
    background-color: var(--hover-bg);
    border-radius: 4px;
    margin-bottom: var(--spacing-xs);
    width: fit-content;
}

/* Footer */
footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
    text-align: center;
}

footer p {
    font-size: 0.875rem;
    color: var(--text-light);
}

.footer-name {
    font-weight: 500;
    color: var(--text-color);
}

/* PhotoSwipe custom styles */
.pswp__caption {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    padding: 0 20px 20px;
    text-align: center;
}

.pswp__custom-caption {
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.95);
    font-size: 0.9375rem;
    padding: 0 20px;
    font-weight: 400;
    line-height: 1.5;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

@media (max-width: 768px) {
    .pswp__custom-caption {
        font-size: 0.875rem;
        padding: 0 15px;
        bottom: 15px;
    }
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }
    
    .main-nav {
        gap: var(--spacing-md);
        flex-wrap: wrap;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .filter-container {
        gap: var(--spacing-xs);
    }
    
    .filter-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8125rem;
    }
}

/* PhotoSwipe custom styles */
.pswp__caption {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    padding: 0 20px 20px;
    text-align: center;
}

.pswp__custom-caption {
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.95);
    font-size: 0.9375rem;
    padding: 0 20px;
    font-weight: 400;
    line-height: 1.5;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

@media (max-width: 768px) {
    .pswp__custom-caption {
        font-size: 0.875rem;
        padding: 0 15px;
        bottom: 15px;
    }
}

@media (max-width: 480px) {
    .intro-section {
        padding: var(--spacing-lg) 0 var(--spacing-md);
    }
    
    .intro-text {
        font-size: 1rem;
    }
    
    .content-item-content {
        min-height: 120px;
        padding: var(--spacing-sm);
    }
}