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

:root {
    /* Color Palette - Kitten-themed but professional */
    --primary-color: #6B46C1;        /* Purple - innovation */
    --primary-dark: #553C9A;
    --primary-light: #9F7AEA;
    --secondary-color: #F6AD55;      /* Orange - energy */
    --accent-color: #48BB78;         /* Green - growth */
    --text-dark: #1A202C;
    --text-medium: #4A5568;
    --text-light: #718096;
    --bg-light: #F7FAFC;
    --bg-white: #FFFFFF;
    --border-color: #E2E8F0;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

/* Language Switcher */
.language-switcher {
    position: fixed;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    z-index: 1000;
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-white);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.lang-btn {
    padding: 0.625rem 0.875rem;
    min-width: 44px;
    min-height: 44px;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-medium);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.lang-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.lang-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--bg-white);
}

/* Header */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--text-dark);
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
    min-height: 80vh;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.kitten-graphic {
    font-size: 15rem;
    opacity: 0.2;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* Features Section */
.features {
    background: var(--bg-light);
    padding: var(--spacing-2xl) var(--spacing-md);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-medium);
}

/* Sectors Section */
.sectors {
    padding: var(--spacing-2xl) var(--spacing-md);
}

.sectors h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xl);
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.sector-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.sector-card:hover {
    background: var(--primary-light);
    color: var(--bg-white);
}

.sector-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.sector-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.sector-card p {
    color: var(--text-medium);
}

.sector-card:hover p {
    color: var(--bg-white);
}

/* Resource Library Section */
.resources-section {
    padding: var(--spacing-2xl) var(--spacing-md);
    background: var(--bg-light);
}

.resources-section h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.resources-section .section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-medium);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.resource-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.resource-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.resource-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.resource-card h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.resource-card p {
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.resource-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.resource-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    padding: var(--spacing-2xl) var(--spacing-md);
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.cta-section .btn-primary {
    background: var(--bg-white);
    color: var(--primary-color);
}

.cta-section .btn-primary:hover {
    background: var(--bg-light);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--bg-light);
    padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo-text {
    color: var(--bg-white);
}

.footer-brand p {
    margin-top: var(--spacing-sm);
    color: var(--text-light);
}

.footer-links h4 {
    color: var(--bg-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-light);
}

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

.social-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--text-medium);
    color: var(--text-light);
}

/* Responsive Design - Mobile First */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        padding: var(--spacing-xl) var(--spacing-md);
        min-height: auto;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

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

    .hero-visual {
        display: none;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: var(--bg-white);
        width: 100%;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .features h2,
    .sectors h2,
    .resources-section h2,
    .cta-section h2 {
        font-size: 2rem;
    }

    .features-grid,
    .sectors-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }

    .resources-section .section-subtitle {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
        text-align: center;
    }
}

/* Technology Marketplace Styles */
.page-header {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    color: var(--bg-white);
    padding: var(--spacing-2xl) var(--spacing-md);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* Tech Filters */
.tech-filters {
    background: var(--bg-light);
    padding: var(--spacing-lg) var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.tech-filters .container {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 150px;
}

.filter-group label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-medium);
}

.filter-select {
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--bg-white);
    color: var(--text-dark);
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-group {
    display: flex;
    flex: 2;
    min-width: 250px;
}

#search-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

#search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-search {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-color);
    color: var(--bg-white);
    border: 2px solid var(--primary-color);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn-search:hover {
    background: var(--primary-dark);
}

/* Tech Listing */
.tech-listing {
    padding: var(--spacing-2xl) var(--spacing-md);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

/* Tech Card */
.tech-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.tech-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.tech-card-header {
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-bottom: 2px solid var(--border-color);
}

.tech-badges {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-trl {
    background: var(--primary-color);
    color: var(--bg-white);
}

.badge-available {
    background: var(--accent-color);
    color: var(--bg-white);
}

.badge-negotiation {
    background: var(--secondary-color);
    color: var(--text-dark);
}

.tech-sector {
    font-size: 0.875rem;
    color: var(--text-medium);
    font-weight: 600;
}

.tech-card-body {
    padding: var(--spacing-md);
    flex: 1;
}

.tech-title {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.tech-description {
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.tech-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-light);
}

.tech-university,
.tech-location {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.tech-card-footer {
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-top: 2px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
    flex: 1;
    text-align: center;
}

.btn-primary:disabled {
    background: var(--text-light);
    cursor: not-allowed;
}

.btn-primary:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* No Results */
.no-results {
    text-align: center;
    padding: var(--spacing-2xl);
}

.no-results-icon {
    font-size: 5rem;
    opacity: 0.3;
    margin-bottom: var(--spacing-md);
}

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

.no-results p {
    color: var(--text-light);
}

/* Active Nav Link */
.nav-menu a.active {
    color: var(--primary-color);
    font-weight: 700;
}

/* Logo Link */
.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
}

@media (max-width: 480px) {
    .language-switcher {
        top: auto;
        bottom: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .feature-card,
    .sector-card {
        padding: var(--spacing-md);
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .tech-filters .container {
        flex-direction: column;
    }

    .filter-group,
    .search-group {
        width: 100%;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .tech-card-footer {
        flex-direction: column;
    }
}

/* =======================
   Technology Detail Page
   ======================= */

/* Breadcrumb */
.breadcrumb {
    background: var(--color-bg);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
}

.btn-back:hover {
    color: var(--color-primary-dark);
    transform: translateX(-4px);
}

/* Loading and Error States */
.loading-state,
.error-state {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.error-state h2 {
    color: var(--color-danger);
    margin-bottom: var(--spacing-md);
}

.error-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Detail Header */
.detail-header {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
}

.detail-header-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.detail-badges {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.badge-sector {
    background: var(--color-secondary-light);
    color: var(--color-primary);
}

.detail-university {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.university-icon,
.location-icon {
    font-size: 1.1rem;
}

.detail-title {
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.detail-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Detail Grid Layout */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

/* Main Content */
.detail-main {
    min-width: 0; /* Prevent grid blowout */
}

.detail-section {
    margin-bottom: var(--spacing-xl);
}

.detail-section h2 {
    font-size: 1.75rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

.detail-text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

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

.detail-features li,
.detail-list li {
    padding: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-lg);
    position: relative;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.detail-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
    font-size: 1.2rem;
}

.detail-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.5rem;
    line-height: 1;
}

/* Technical Specs */
.technical-specs {
    background: var(--color-bg);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-item strong {
    color: var(--color-text);
}

.spec-item span {
    color: var(--color-text-secondary);
    text-align: right;
}

/* Sidebar */
.detail-sidebar {
    position: sticky;
    top: var(--spacing-lg);
    height: fit-content;
}

.sidebar-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.sidebar-card h3 {
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.sidebar-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Quick Info Grid */
.info-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: var(--color-text);
}

.info-value {
    color: var(--color-text-secondary);
    text-align: right;
}

/* Related Technologies */
.related-list {
    list-style: none;
    padding: 0;
}

.related-list li {
    margin-bottom: var(--spacing-sm);
}

.related-list a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-base);
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
}

.related-list a:hover {
    background: var(--color-bg);
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

/* Responsive Design for Detail Page */
@media (max-width: 768px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }

    .detail-sidebar {
        position: static;
    }

    .detail-title {
        font-size: 1.75rem;
    }

    .detail-subtitle {
        font-size: 1.1rem;
    }

    .detail-section h2 {
        font-size: 1.5rem;
    }

    .detail-header-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .spec-item {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .spec-item span {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .detail-title {
        font-size: 1.5rem;
    }

    .detail-subtitle {
        font-size: 1rem;
    }

    .detail-section h2 {
        font-size: 1.25rem;
    }

    .sidebar-card {
        padding: var(--spacing-md);
    }
}