* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Root Variables */
:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --text-color: #333;
    --light-gray: #f8f9fa;
    --border-color: #e0e0e0;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Global Styles */
body {
    font-family: 'Raleway', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: #ffffff;
}

/* Hero Banner */
.hero {
    position: relative;
    color: #ffffff;
    padding: 120px 20px;
    text-align: center;
    animation: fadeIn 0.8s ease;
    background: url('img/header.jpg') center/cover no-repeat;
    min-height: 50vh;
    max-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.42);
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding: 32px 40px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -1px;
    text-shadow: 1px 1px 4px black;
}

.hero h2 {
    font-size: 1.8rem;
    font-weight: 600;
    text-shadow: 1px 1px 3px black;
    }

.hero h3,
.hero p {
    font-size: 1.8rem;
    font-weight: 400;
    text-shadow: 1px 1px 3px black;
    }

/* About Author Section */
.about-author {
    padding: 60px 20px;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-content h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 600;
}

.about-content p {
    font-size: 1rem;
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.social-icon-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--primary-color);
}

.social-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-gray);
    border-radius: 50%;
    color: var(--primary-color);
    transition: var(--transition);
}

.social-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary-color);
}

.social-icon-wrapper:hover .social-icon {
    background-color: var(--accent-color);
    color: #ffffff;
    transform: translateY(-5px);
}

.social-icon-wrapper:hover .social-label {
    color: var(--accent-color);
}

.social-icon svg {
    width: 24px;
    height: 24px;
}

/* Gallery Section */
.gallery-section {
    padding: 80px 20px;
    background-color: var(--light-gray);
}

.gallery-title {
    max-width: 1200px;
    margin: 0 auto 50px;
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 600;
    text-align: center;
}

.tag-filter-bar {
    max-width: 1200px;
    margin: 0 auto 0;
    display: none;
    flex-wrap: wrap;
    gap: 12px;
}

.tag-filter-bar.show {
    display: flex;
    margin-top: 40px;
    margin-bottom: 24px;
}

.tag-filter-btn {
    border: 1px solid var(--border-color);
    background-color: #ffffff;
    color: var(--primary-color);
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tag-filter-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.tag-filter-btn.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: #ffffff;
}

.gallery-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

/* Gallery Card */
.gallery-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.gallery-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.gallery-card:focus-within {
    outline: 3px solid var(--accent-color);
    outline-offset: 3px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    background-color: var(--light-gray);
}

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

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

.card-content {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.card-description {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 20px;
    flex-grow: 1;
    line-height: 1.7;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 10px;
}

.card-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 9px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: #eaf3ff;
    color: #1f5f99;
    border: 1px solid #cfe3ff;
}

.card-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    position: static;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
    width: fit-content;
}

.card-link::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
}

.card-link:hover {
    color: var(--primary-color);
}

.card-link:focus-visible {
    outline: none;
}

/* Hidden Galleries */
.hidden-galleries {
    display: none;
}

.hidden-galleries.show {
    display: grid;
    margin-top: 40px;
}

/* Expand Button */
.expand-container {
    display: flex;
    justify-content: center;
    padding: 40px 20px;
    background-color: var(--light-gray);
}

.expand-btn {
    padding: 14px 40px;
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    background-color: var(--accent-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.expand-btn:hover {
    background-color: #2980b9;
}

.expand-btn:active {
    transform: scale(0.98);
}

/* Footer */
.footer {
    background-color: #ecf0f1;
    color: #333;
    text-align: center;
    padding: 30px 20px;
    font-size: 0.95rem;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .hero h3,
    .hero p {
        font-size: 1.1rem;
    }

    .hero {
        padding: 80px 20px;
        min-height: 350px;
    }

    .hero-content {
        padding: 24px 20px;
        border-radius: 20px;
    }

    .about-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-content h2 {
        font-size: 1.5rem;
    }

    .gallery-container {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
    }

    .hidden-galleries.show {
        margin-top: 30px;
    }

    .tag-filter-bar.show {
        margin-top: 30px;
        margin-bottom: 18px;
    }

    .gallery-section {
        padding: 50px 20px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .gallery-container {
        grid-template-columns: 1fr;
    }

    .tag-filter-bar {
        gap: 8px;
    }

    .tag-filter-btn {
        font-size: 0.82rem;
        padding: 7px 11px;
    }

    .card-title {
        font-size: 1.3rem;
    }

    .card-content {
        padding: 20px;
    }

    .card-tags {
        gap: 6px;
    }

    .card-tag {
        font-size: 0.72rem;
        padding: 4px 8px;
    }
}