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

:root {
    --primary-bg: #ffffff;
    --secondary-bg: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --hover-bg: #f1f5f9;
    --navbar-height: 50px;
}

[data-theme="dark"] {
    --primary-bg: #000000;
    --secondary-bg: #0a0a0a;
    --card-bg: #111111;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --border-color: #27272a;
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --hover-bg: #1a1a1a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    transition: all 0.3s ease;
    line-height: 1.6;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 1000;
    transition: all 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(0, 0, 0, 0.95);
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent-color), #0f1fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background: var(--secondary-bg);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    transition: all 0.3s ease;
}

.sun-icon {
    stroke: var(--text-primary);
}

.moon-icon {
    fill: var(--text-primary);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: calc(var(--navbar-height) + 40px) 24px 80px;
}

.privacy-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px 0;
}

.privacy-header h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--accent-color), #0f1fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.last-updated {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    align-items: start;
}

.table-of-contents {
    position: sticky;
    top: calc(var(--navbar-height) + 24px);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    max-height: calc(100vh - var(--navbar-height) - 48px);
    overflow-y: auto;
}

.table-of-contents::-webkit-scrollbar {
    width: 6px;
}

.table-of-contents::-webkit-scrollbar-track {
    background: transparent;
}

.table-of-contents::-webkit-scrollbar-thumb {
    background: var(--text-secondary);
    border-radius: 3px;
    opacity: 0.3;
}

.table-of-contents h3 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.table-of-contents ul {
    list-style: none;
}

.table-of-contents li {
    margin-bottom: 8px;
}

.table-of-contents a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: block;
    padding: 6px 12px;
    border-radius: 8px;
}

.table-of-contents a:hover {
    color: var(--accent-color);
    background: var(--secondary-bg);
}

.policy-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 48px;
}

.policy-content section {
    margin-bottom: 48px;
}

.policy-content section:last-child {
    margin-bottom: 0;
}

.policy-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.policy-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 24px 0 12px 0;
    color: var(--text-primary);
}

.policy-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.policy-content ul {
    margin: 16px 0 16px 24px;
    color: var(--text-secondary);
}

.policy-content li {
    margin-bottom: 12px;
    line-height: 1.8;
}

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

.policy-content a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.policy-content a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.contact-info {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin: 24px 0;
}

.contact-item {
    margin-bottom: 16px;
    font-size: 15px;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item strong {
    display: block;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.contact-item a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.legal-notice {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    margin-top: 48px;
}

.legal-notice h2 {
    border-bottom: none;
    margin-bottom: 16px;
}

.legal-notice p {
    margin-bottom: 12px;
}

.legal-notice p:last-child {
    margin-bottom: 0;
}

.acknowledgment {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid var(--accent-color);
    border-radius: 12px;
    padding: 32px;
    margin-top: 48px;
}

.acknowledgment h3 {
    font-size: 20px;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.acknowledgment ul {
    margin-left: 24px;
}

.acknowledgment li {
    color: var(--text-primary);
}

.footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--text-secondary);
    font-size: 14px;
    border-top: 1px solid var(--border-color);
    margin-top: 60px;
}

@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .table-of-contents {
        position: static;
        max-height: none;
    }

    .privacy-header h1 {
        font-size: 36px;
    }

    .policy-content {
        padding: 32px;
    }

    .policy-content h2 {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: calc(var(--navbar-height) + 24px) 16px 60px;
    }

    .privacy-header {
        padding: 24px 0;
        margin-bottom: 40px;
    }

    .privacy-header h1 {
        font-size: 32px;
    }

    .policy-content {
        padding: 24px;
    }

    .policy-content h2 {
        font-size: 24px;
    }

    .policy-content h3 {
        font-size: 18px;
    }

    .contact-info {
        padding: 20px;
    }

    .legal-notice, .acknowledgment {
        padding: 24px;
    }

    .navbar {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .privacy-header h1 {
        font-size: 28px;
    }

    .policy-content {
        padding: 20px;
    }

    .policy-content h2 {
        font-size: 22px;
    }

    .table-of-contents {
        padding: 20px;
    }
}