/* ===== CSS Variables ===== */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-sm: 8px;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    --container-max: 1200px;
    --header-height: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style-position: inside;
}

code {
    background-color: var(--bg-tertiary);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.9em;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

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

.github-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-sm);
}

.github-link svg {
    width: 18px;
    height: 18px;
}

.github-link:hover {
    background: var(--bg-secondary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    padding: calc(var(--header-height) + 60px) 0 60px;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4fd 100%);
    text-align: center;
}

.hero-content h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 24px;
}

.release-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.version-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.release-date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== Quick Recommendation ===== */
.quick-recommendation {
    padding: 60px 0;
    background: var(--bg-primary);
}

.recommendation-card {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    border: 2px solid #fde047;
    border-radius: var(--border-radius-lg);
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.recommendation-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

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

.recommendation-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.recommendation-text {
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.benefits-list {
    list-style: none;
    margin-bottom: 24px;
}

.benefits-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 1rem;
}

.check {
    font-size: 1.1rem;
}

.choose-system {
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.quick-download-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

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

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

.btn-secondary:hover {
    background: #1e293b;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.05rem;
}

.btn-large span {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.btn-large small {
    font-weight: 400;
    font-size: 0.85rem;
    opacity: 0.9;
}

.btn-icon {
    width: 28px;
    height: 28px;
}

.btn-download {
    background: var(--primary-color);
    color: white;
    width: 100%;
    padding: 14px 20px;
}

.btn-download:hover {
    background: var(--primary-dark);
    color: white;
}

.btn-download svg {
    width: 20px;
    height: 20px;
}

.btn-download.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-download.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* ===== Section Titles ===== */
.section-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-primary);
}

/* ===== Differences Section ===== */
.differences {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.differences-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

.difference-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
    transition: var(--transition);
}

.difference-card:hover {
    box-shadow: var(--shadow-lg);
}

.difference-card.installable {
    border-color: var(--success-color);
}

.difference-card.portable {
    border-color: var(--secondary-color);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

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

.card-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.recommended {
    background: #dcfce7;
    color: #166534;
}

.badge.advanced {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.card-subtitle {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-style: italic;
}

.feature-list {
    list-style: none;
    margin-bottom: 20px;
}

.feature-list li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}

.feature-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.when-to-use {
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: var(--border-radius-sm);
}

.when-to-use strong {
    display: block;
    margin-bottom: 8px;
}

.when-to-use ul {
    list-style: none;
}

.when-to-use li {
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.when-to-use li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* ===== Downloads Section ===== */
.downloads {
    padding: 80px 0;
    background: var(--bg-primary);
}

.download-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn svg {
    width: 20px;
    height: 20px;
}

.tab-btn:hover {
    background: var(--bg-secondary);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.download-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.download-card:hover {
    box-shadow: var(--shadow-lg);
}

.download-card.recommended {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.download-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.download-icon {
    font-size: 1.75rem;
}

.download-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
}

.tag {
    display: inline-block;
    padding: 2px 10px;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.tag.secondary {
    background: var(--secondary-color);
}

.download-card > p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.download-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.file-type, .file-size {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: var(--bg-primary);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Comparison Table ===== */
.comparison {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 0.95rem;
}

.comparison-table th:first-child {
    border-radius: var(--border-radius) 0 0 0;
}

.comparison-table th:last-child {
    border-radius: 0 var(--border-radius) 0 0;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:last-child td:first-child {
    border-radius: 0 0 0 var(--border-radius);
}

.comparison-table tr:last-child td:last-child {
    border-radius: 0 0 var(--border-radius) 0;
}

.comparison-table tbody tr:hover {
    background: var(--bg-secondary);
}

.table-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px;
    font-weight: 600;
    background: var(--bg-tertiary);
}

.table-badge.recommended {
    background: #dcfce7;
    color: #166534;
}

/* ===== Guides Section ===== */
.guides {
    padding: 80px 0;
    background: var(--bg-primary);
}

.guides-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    margin-bottom: 12px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.accordion-header {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 20px 24px;
    background: var(--bg-primary);
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    transition: var(--transition);
}

.accordion-header:hover {
    background: var(--bg-secondary);
}

.os-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.accordion-icon {
    width: 20px;
    height: 20px;
    margin-left: auto;
    transition: transform 0.3s ease;
    color: var(--text-muted);
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    max-height: 1000px;
}

.accordion-content > div {
    padding: 0 24px 24px;
}

.guide-option {
    margin-bottom: 24px;
}

.guide-option h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.guide-option ol {
    padding-left: 0;
}

.guide-option ol li {
    padding: 6px 0;
    padding-left: 8px;
}

.warning-box {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: #fef3c7;
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--warning-color);
    margin-top: 16px;
}

.warning-icon {
    font-size: 1.25rem;
    line-height: 1;
}

.warning-box p {
    margin: 0;
    font-size: 0.95rem;
}

/* ===== FAQ Section ===== */
.faq {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-accordion .accordion-header {
    font-size: 1rem;
}

.faq-accordion .accordion-header span {
    flex: 1;
}

.faq-accordion .accordion-content {
    padding: 0 24px;
}

.faq-accordion .accordion-content p,
.faq-accordion .accordion-content ol {
    padding-bottom: 20px;
}

/* ===== Technical Section ===== */
.technical {
    padding: 80px 0;
    background: var(--bg-primary);
}

.technical-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.technical-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 28px;
}

.technical-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.technical-card ul {
    list-style: none;
}

.technical-card li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.technical-card li:last-child {
    border-bottom: none;
}

.checksums {
    background: var(--bg-primary);
    padding: 16px;
    border-radius: var(--border-radius-sm);
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    overflow-x: auto;
}

.loading-text {
    color: var(--text-muted);
    font-style: italic;
}

/* ===== Support Section ===== */
.support {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.support-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.support-content > p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.support-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: left;
}

.support-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    color: var(--text-primary);
}

.support-card svg {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.support-card strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 4px;
}

.support-card span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ===== Footer - Enterprise Style ===== */
.footer {
    background: linear-gradient(180deg, #0f172a 0%, #1a202c 100%);
    color: white;
    padding: 60px 0 0;
    margin-top: 120px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer Main Content */
.footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 40px;
    padding: 60px 0 40px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-column:first-child {
    grid-column: 1 / 2;
}

/* Footer Logo */
.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.footer-logo .logo-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-light);
}

.footer-description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-top: 8px;
}

/* Social Links */
.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-link:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Footer Column Title */
.footer-column-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

/* Footer Links */
.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.footer-links a:hover {
    color: white;
    padding-left: 4px;
}

/* Footer Divider */
.footer-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    margin: 20px 0;
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px 0;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin: 0;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    margin: 0;
}

.heart {
    color: #ef4444;
    display: inline-block;
}

/* Status Badge */
.footer-status {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid rgba(34, 197, 94, 0.5);
    border-radius: 20px;
    color: #86efac;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

/* Footer Responsive */
@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-logo {
        display: inline-flex;
    }

    .footer-column-title {
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .footer-main {
        gap: 24px;
    }

    .footer-links {
        gap: 8px;
    }

    .footer-column-title {
        font-size: 0.85rem;
    }

    .footer-links a {
        font-size: 0.85rem;
    }

    .footer-copyright,
    .footer-tagline {
        font-size: 0.8rem;
    }
}

/* ===== Documentation Section ===== */
.documentation {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.doc-header {
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.doc-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
}

#download-pdf-btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
}

#download-pdf-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(34, 197, 94, 0.3);
}

.doc-header-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Table of Contents */
.table-of-contents {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    margin-bottom: 40px;
    display: none;
}

.table-of-contents.active {
    display: block;
    animation: slideDown 0.3s ease;
}

.table-of-contents h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.toc-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.toc-section h4 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 12px;
}

.toc-section ul {
    list-style: none;
    padding: 0;
}

.toc-section li {
    margin-bottom: 8px;
}

.toc-section a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    padding: 6px 0;
    display: inline-block;
    transition: var(--transition);
}

.toc-section a:hover {
    color: var(--primary-color);
    padding-left: 8px;
}

/* Use Cases Grid */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
    margin-top: 30px;
}

.use-case-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.use-case-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15);
    transform: translateY(-4px);
}

.case-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.case-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.case-header h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin: 0;
}

.use-case-card > p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.case-steps {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.case-steps h5 {
    color: var(--primary-color);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.case-steps ol {
    margin-left: 20px;
}

.case-steps li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

/* Features Summary */
.features-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.feature-item {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(59, 130, 246, 0.02) 100%);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.feature-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.feature-item h5 {
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.doc-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0;
}

.doc-tab-btn {
    padding: 14px 24px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.doc-tab-btn.active {
    color: var(--primary-color);
}

.doc-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.doc-tab-btn:hover {
    color: var(--primary-color);
}

.doc-tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.doc-tab-content.active {
    display: block;
}

.doc-section {
    margin-bottom: 40px;
    background: white;
    padding: 28px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.doc-section h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.doc-section > p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.doc-section ul {
    list-style-position: inside;
}

.doc-section li {
    margin-bottom: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Mini Tabs for Installation */
.tabs-mini {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.tab-mini-btn {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.tab-mini-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    color: white;
}

.mini-content {
    display: none;
}

.mini-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.instruction-list {
    list-style-position: inside;
    list-style-type: decimal;
}

.instruction-list li {
    margin-bottom: 14px;
    padding-left: 8px;
    color: var(--text-secondary);
}

.instruction-list code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
}

/* Interface Grid */
.interface-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.interface-card {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.interface-card .card-number {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.interface-card h5 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 1rem;
}

.interface-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.tool-card {
    background: white;
    padding: 24px;
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.tool-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.tool-card.highlight {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(59, 130, 246, 0.02) 100%);
}

.tool-card h5 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 1rem;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 14px;
}

.tool-card .badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--primary-light);
    color: white;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Steps Box */
.steps-box {
    display: grid;
    gap: 16px;
    margin-top: 20px;
}

.step {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h5 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Info and Warning Boxes */
.info-box,
.warning-box {
    padding: 16px 20px;
    border-radius: var(--border-radius);
    margin-top: 16px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.info-box {
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid #3b82f6;
    color: #1e40af;
}

.warning-box {
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid #f59e0b;
    color: #92400e;
}

.warning-icon {
    flex-shrink: 0;
    font-size: 1.2rem;
}

/* Folder Structure */
.folder-structure {
    display: grid;
    gap: 16px;
    margin-top: 20px;
}

.folder-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.folder-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.folder-content h5 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.folder-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Workflow Diagram */
.workflow-diagram {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 20px;
    flex-wrap: wrap;
    padding: 24px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.workflow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: white;
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--primary-color);
    min-width: 120px;
}

.step-icon {
    font-size: 1.5rem;
}

.workflow-step h5 {
    color: var(--text-primary);
    font-size: 0.9rem;
    text-align: center;
}

.workflow-arrow {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.5rem;
}

/* Shortcuts Table */
.shortcuts-table {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.shortcut-row {
    display: grid;
    grid-template-columns: 150px 1fr;
    border-bottom: 1px solid var(--border-color);
}

.shortcut-row.header {
    background: var(--bg-secondary);
    font-weight: 600;
}

.shortcut-row:last-child {
    border-bottom: none;
}

.shortcut-key {
    padding: 16px 20px;
    font-family: 'Fira Code', monospace;
    color: var(--primary-color);
    font-weight: 600;
}

.shortcut-desc {
    padding: 16px 20px;
    color: var(--text-secondary);
}

/* Documentation Images */
.doc-image-container {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
}

.doc-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    display: inline-block;
}

/* FAQ in Documentation */
.doc-faq {
    background: white;
    border: none;
}

.faq-item {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

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

.faq-item h5 {
    color: var(--text-primary);
    margin-bottom: 12px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq-item h5::before {
    content: '▶ ';
    color: var(--primary-color);
    margin-right: 8px;
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Documentation Responsive */
@media (max-width: 768px) {
    .doc-header-actions {
        flex-direction: column;
        width: 100%;
    }

    .doc-header-actions .btn {
        width: 100%;
    }

    .toc-content {
        grid-template-columns: 1fr;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .features-summary {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }

    .nav.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .quick-download-buttons {
        flex-direction: column;
    }

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

    .btn-large span {
        align-items: center;
        text-align: center;
    }

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

    .download-tabs {
        flex-direction: column;
        align-items: stretch;
    }

    .tab-btn {
        justify-content: center;
    }

    .download-options {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        font-size: 0.9rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 12px 14px;
    }

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

    .support-options {
        grid-template-columns: 1fr;
    }

    .recommendation-card {
        padding: 28px 20px;
    }

    /* Documentation responsive */
    .doc-tabs {
        flex-direction: column;
        gap: 8px;
    }

    .doc-tab-btn {
        width: 100%;
        text-align: left;
    }

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

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

    .tabs-mini {
        flex-direction: column;
    }

    .tab-mini-btn {
        width: 100%;
    }

    .doc-section {
        padding: 20px;
    }

    .step {
        flex-direction: column;
    }

    .step-number {
        align-self: center;
    }

    .workflow-diagram {
        flex-direction: column;
        gap: 12px;
    }

    .workflow-arrow {
        transform: rotate(90deg);
    }

    .shortcut-row {
        grid-template-columns: 1fr;
    }

    .shortcut-key,
    .shortcut-desc {
        padding: 12px 16px;
    }

    #download-pdf-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .accordion-header {
        padding: 16px 18px;
        font-size: 1rem;
    }

    .recommendation-header h2 {
        font-size: 1.25rem;
    }
}

/* ===== Utility Classes ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== Animations ===== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* ===== ENTERPRISE DOWNLOADS SECTION ===== */

/* Header Section */
.download-header-section {
    margin-bottom: 48px;
    text-align: center;
}

.download-header-content {
    margin-bottom: 32px;
}

.download-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Search & Filter Bar */
.download-search-bar {
    margin-bottom: 32px;
}

.search-input-wrapper {
    position: relative;
    max-width: 500px;
    margin: 0 auto 24px;
}

.search-input {
    width: 100%;
    padding: 14px 48px 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 4px 8px;
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 1.2rem;
    line-height: 1;
}

/* Filters */
.download-filters {
    display: flex;
    flex-direction: column;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-label {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 120px;
    text-align: right;
}

.filter-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

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

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

/* Downloads Grid */
.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
    margin-bottom: 48px;
}

/* Download Card - Enterprise Style */
.download-card {
    position: relative;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    overflow: hidden;
}

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

/* Card Ribbon (Recommended) */
.card-ribbon {
    position: absolute;
    top: 0;
    right: 0;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: white;
    padding: 6px 24px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
    transform: rotate(45deg) translateY(-12px) translateX(14px);
    transform-origin: right top;
}

.ribbon-text {
    display: inline-block;
}

/* Card Header */
.card-header-inner {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}

.card-title-section {
    flex: 1;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

/* Card Info Row */
.card-info-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.info-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.info-badge.accent {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: var(--primary-color);
    font-weight: 600;
}

/* Card Specs */
.card-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.spec-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.spec-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.spec-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Card Description */
.card-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
}

/* Card Requirements */
.card-requirements {
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    border-left: 3px solid var(--primary-color);
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 16px;
}

.card-requirements strong {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.card-requirements ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.card-requirements li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
    margin-bottom: 4px;
}

.card-requirements li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* Card Checksum */
.card-checksum {
    margin-bottom: 16px;
}

.card-checksum details {
    cursor: pointer;
}

.card-checksum summary {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    padding: 8px 0;
    user-select: none;
    display: flex;
    align-items: center;
}

.card-checksum summary:hover {
    color: var(--primary-dark);
}

.checksum-value {
    display: block;
    background: var(--bg-tertiary);
    padding: 12px;
    margin-top: 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-family: 'Fira Code', 'Courier New', monospace;
    color: var(--text-secondary);
    word-break: break-all;
    border: 1px solid var(--border-color);
}

/* Card Actions */
.card-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.btn-download-main {
    flex: 1;
    padding: 12px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-download-main:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-download-main {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-icon-only {
    width: 44px;
    height: 44px;
    padding: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-icon-only:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* No Results Message */
.no-results-message {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.no-results-message svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-results-message h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

/* Info Section */
.download-info-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.info-box-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.info-box {
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.info-box:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.info-box strong {
    display: block;
    margin-bottom: 10px;
    font-size: 1rem;
}

.info-box p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .download-filters {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-label {
        text-align: left;
        min-width: auto;
        margin-bottom: 8px;
    }

    .filter-buttons {
        justify-content: space-between;
    }

    .card-specs {
        grid-template-columns: 1fr;
    }

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

    .card-ribbon {
        transform: rotate(45deg) translateY(-8px) translateX(20px);
    }

    .download-header-section {
        margin-bottom: 32px;
    }

    .search-input-wrapper {
        max-width: 100%;
    }

    .card-actions {
        flex-direction: column;
    }

    .btn-download-main {
        width: 100%;
    }

    .btn-icon-only {
        width: 100%;
        height: auto;
        padding: 12px;
    }
}