/* Turin Polytechnic University Digital Museum - Dark Theme */
/* Modern Dark Theme with Ancient Artifact Backgrounds */

/* ===== CSS Variables ===== */
:root {
    /* Dark Theme Colors */
    --color-primary: #1a1a2e;
    --color-secondary: #16213e;
    --color-accent: #0f3460;
    --color-highlight: #e94560;
    --color-gold: #d4af37;
    --color-bronze: #cd7f32;
    --color-jade: #00a86b;

    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #888888;

    /* Background Colors */
    --color-bg-dark: #0a0a14;
    --color-bg-card: rgba(26, 26, 46, 0.85);
    --color-bg-overlay: rgba(10, 10, 20, 0.85);

    /* Border & Shadow */
    --color-border: rgba(255, 255, 255, 0.1);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.6);
    --shadow-text: 0 2px 4px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-dark);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Ancient Artifact Background */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(10, 10, 20, 0.9), rgba(10, 10, 20, 0.95)),
        url("/images/background-1.jpg");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    z-index: -2;
    animation: backgroundShift 30s infinite alternate;
}

@keyframes backgroundShift {
    0% {
        background-image:
            linear-gradient(rgba(10, 10, 20, 0.9), rgba(10, 10, 20, 0.95)),
            url("/images/background-1.jpg");
    }
    33% {
        background-image:
            linear-gradient(rgba(10, 10, 20, 0.9), rgba(10, 10, 20, 0.95)),
            url("/images/background-2.jpg");
    }
    66% {
        background-image:
            linear-gradient(rgba(10, 10, 20, 0.9), rgba(10, 10, 20, 0.95)),
            url("/images/background-3.jpg");
    }
}

/* Decorative Overlay */
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(
            circle at 20% 80%,
            rgba(212, 175, 55, 0.05) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 20%,
            rgba(0, 168, 107, 0.05) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 40% 40%,
            rgba(233, 69, 96, 0.03) 0%,
            transparent 50%
        );
    pointer-events: none;
    z-index: -1;
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "Playfair Display", Georgia, serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    background: linear-gradient(
        135deg,
        var(--color-text-primary),
        var(--color-gold)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: var(--shadow-text);
}

h2 {
    font-size: 2.5rem;
    color: var(--color-text-primary);
    position: relative;
    display: inline-block;
}

h2::after {
    content: "";
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(
        90deg,
        var(--color-gold),
        var(--color-highlight)
    );
    border-radius: var(--radius-full);
}

h3 {
    font-size: 1.8rem;
    color: var(--color-text-primary);
}

p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
}

/* ===== Navigation ===== */
nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg-overlay);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand .logo-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--color-text-primary);
    transition: var(--transition-normal);
}

.nav-brand .logo-link:hover {
    transform: translateY(-2px);
}

.logo-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: "Playfair Display", serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.logo-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
    position: relative;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--color-gold);
    background: rgba(212, 175, 55, 0.1);
}

.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--color-gold);
    border-radius: var(--radius-full);
}

/* Language Switcher */
.language-switcher {
    position: relative;
    cursor: pointer;
}

.current-language {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: var(--transition-normal);
}

.current-language:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
    z-index: 1001;
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    border-bottom: 1px solid var(--color-border);
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
}

/* ===== Main Content ===== */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Intro Section */
.intro {
    text-align: center;
    padding: 4rem 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.intro::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(
        circle,
        rgba(212, 175, 55, 0.1) 0%,
        transparent 70%
    );
    border-radius: 50%;
}

.intro h1 {
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.intro p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 3rem;
    color: var(--color-text-secondary);
    position: relative;
    z-index: 1;
}

.intro-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gold);
    font-family: "Playfair Display", serif;
    text-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* Search Section */
.search-section {
    margin: 3rem 0;
    text-align: center;
}

.search-container {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition-normal);
}

.search-container:focus-within {
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.search-icon {
    padding: 1rem 1.5rem;
    font-size: 1.2rem;
    color: var(--color-text-muted);
    background: rgba(255, 255, 255, 0.05);
}

#search-input {
    flex: 1;
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
    background: transparent;
    color: var(--color-text-primary);
    outline: none;
}

#search-input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.7;
}

#search-button {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--color-gold), var(--color-bronze));
    color: var(--color-text-primary);
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

#search-button:hover {
    background: linear-gradient(135deg, var(--color-bronze), var(--color-gold));
    transform: translateX(2px);
}

.search-hint {
    margin-top: 1rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Collection Header */
.collection-header {
    margin: 4rem 0 2rem;
    text-align: center;
}

.collection-header h2 {
    margin-bottom: 2rem;
}

.collection-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-gold);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--color-gold), var(--color-bronze));
    border-color: transparent;
    color: var(--color-text-primary);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

/* Artifact Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-card);
    position: relative;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-gold);
}

.card-image {
    height: 250px;
    overflow: hidden;
    position: relative;
}

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

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

.card-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition-normal);
}

.card:hover .card-overlay {
    opacity: 1;
    transform: translateY(0);
}

.overlay-era,
.overlay-material {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.8);
    color: var(--color-text-primary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
    border: 1px solid var(--color-border);
}

.overlay-era {
    background: rgba(15, 52, 96, 0.8);
    border-color: var(--color-accent);
}

.overlay-material {
    background: rgba(205, 127, 50, 0.8);
    border-color: var(--color-bronze);
}

.card-content {
    padding: 1.5rem;
}

.card-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.card-meta {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    font-weight: 500;
    border: 1px solid var(--color-border);
}

.meta-item .meta-icon {
    font-size: 0.9rem;
}

.card-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}

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

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    margin: 2rem 0;
    border: 1px solid var(--color-border);
}

.no-results-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.no-results h3 {
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.no-results p {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.reset-btn {
    padding: 0.75rem 2rem;
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-highlight)
    );
    color: var(--color-text-primary);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.reset-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

/* Museum Info */
.museum-info {
    margin: 6rem 0 4rem;
    padding: 3rem;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.museum-info::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(
        90deg,
        var(--color-gold),
        var(--color-jade),
        var(--color-highlight)
    );
}

.museum-info h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.info-content p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.info-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
}

.feature:hover {
    transform: translateY(-5px);
    border-color: var(--color-gold);
    box-shadow: var(--shadow-card);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.feature h4 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.feature p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

/* ===== Artifact Detail Page ===== */
.artifact-detail {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: 3rem;
    margin: 2rem 0;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
}

.artifact-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

.artifact-header h1 {
    margin-bottom: 1.5rem;
}

.artifact-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.meta-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    transition: var(--transition-normal);
}

.meta-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.meta-tag.era {
    background: rgba(15, 52, 96, 0.2);
    border-color: var(--color-accent);
}

.meta-tag.material {
    background: rgba(205, 127, 50, 0.2);
    border-color: var(--color-bronze);
}

.meta-tag.dimensions {
    background: rgba(0, 168, 107, 0.2);
    border-color: var(--color-jade);
}

.meta-icon {
    font-size: 1rem;
}

/* Artifact Preview */
.artifact-preview {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.preview-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
}

.preview-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-normal);
}

.preview-image:hover img {
    transform: scale(1.03);
}

.preview-label {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.8);
    color: var(--color-text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
}

/* 3D Model Container */
.model-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
    background: var(--color-bg-dark);
}

.model-header {
    padding: 1.5rem;
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-primary)
    );
    color: var(--color-text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.model-header h3 {
    font-size: 1.2rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.model-icon {
    font-size: 1.1rem;
}

.model-controls-hint {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

/* Artifact Info */
.artifact-info {
    margin: 3rem 0;
}

.info-section {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--color-gold);
    transition: var(--transition-normal);
}

.info-section:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-card);
}

.info-section h3 {
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-icon {
    font-size: 1.2rem;
}

.content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.content p {
    margin-bottom: 1.2rem;
}

.content strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

/* Navigation Button */
.artifact-navigation {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.nav-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 1rem 2.5rem;
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-primary)
    );
    color: var(--color-text-primary);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-normal);
    border: 1px solid var(--color-border);
}

.nav-button:hover {
    background: linear-gradient(
        135deg,
        var(--color-primary),
        var(--color-accent)
    );
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.nav-icon {
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.nav-button:hover .nav-icon {
    transform: translateX(-5px);
}

/* ===== Footer ===== */
footer {
    background: var(--color-bg-overlay);
    border-top: 1px solid var(--color-border);
    margin-top: 4rem;
    padding: 3rem 0 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.footer-section p {
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.social-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.footer-bottom {
    max-width: 1200px;
    margin: 3rem auto 0;
    padding: 2rem 2rem 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-credit {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .intro {
        padding: 2rem 1rem;
    }

    .intro-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .search-container {
        flex-direction: column;
        border-radius: var(--radius-lg);
    }

    .search-icon {
        display: none;
    }

    #search-button {
        width: 100%;
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .artifact-preview {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .collection-filters {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .info-features {
        grid-template-columns: 1fr;
    }

    .museum-info {
        padding: 2rem 1rem;
    }

    .artifact-detail {
        padding: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .intro-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .artifact-meta {
        flex-direction: column;
        align-items: center;
    }

    .meta-tag {
        width: 100%;
        justify-content: center;
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Print Styles ===== */
@media print {
    body {
        background: white !important;
        color: black !important;
    }

    nav,
    .search-section,
    .collection-filters,
    footer {
        display: none;
    }

    .card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--color-accent);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-highlight);
}