:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #7209b7;
    --accent: #4cc9f0;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #ffffff;
    --background: #ffffff;
    --background-alt: #f8f9fa;
    --border: #e0e0e0;
    --success: #4caf50;
    --warning: #ff9800;
    --error: #f44336;
    --gradient-start: #4361ee;
    --gradient-end: #7209b7;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 10px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

a:hover {
    color: var(--secondary);
}

ul {
    list-style: none;
}

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

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary);
}

.logo img {
    height: 32px;
    margin-right: 10px;
}

nav ul {
    display: flex;
    gap: 30px;
}

nav ul li a {
    font-weight: 500;
    color: var(--text-primary);
    padding: 5px 0;
    position: relative;
}

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

nav ul li a.active {
    color: var(--primary);
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
}

/* Main Content */
main {
    padding: 60px 20px;
}

.policy-header {
    text-align: center;
    margin-bottom: 50px;
}

.policy-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.policy-intro {
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.policy-section {
    display: flex;
    margin-bottom: 60px;
    gap: 30px;
}

.section-icon {
    flex: 0 0 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow);
}

.section-content {
    flex: 1;
}

.section-content h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.info-card {
    display: flex;
    background-color: var(--background-alt);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 15px;
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.info-icon {
    flex: 0 0 40px;
    height: 40px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1rem;
    margin-right: 20px;
}

.info-details h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.feature-list {
    padding-left: 20px;
}

.feature-list li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 30px;
}

.feature-list li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--primary);
    position: absolute;
    left: 0;
}

.storage-info {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.storage-item {
    flex: 1;
    background-color: var(--background-alt);
    border-radius: var(--border-radius);
    padding: 15px;
    text-align: center;
    transition: var(--transition);
}

.storage-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.storage-item i {
    display: block;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.third-party-card {
    background-color: var(--background-alt);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
}

.third-party-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.learn-more {
    display: inline-block;
    margin-top: 10px;
    font-weight: 500;
}

.commitment {
    display: flex;
    align-items: center;
    background-color: rgba(76, 201, 240, 0.1);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
}

.commitment i {
    font-size: 2rem;
    color: var(--accent);
    margin-right: 20px;
}

.rights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.right-item {
    background-color: var(--background-alt);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.right-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.right-item i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.right-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.version-history {
    margin-top: 20px;
}

.btn-secondary {
    display: inline-block;
    padding: 10px 20px;
    background-color: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: rgba(67, 97, 238, 0.1);
}

.version-history-content {
    display: none;
    margin-top: 20px;
    background-color: var(--background-alt);
    border-radius: var(--border-radius);
    padding: 20px;
}

.version {
    display: flex;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.version:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.version-date {
    flex: 0 0 120px;
    font-weight: 500;
}

.contact-card {
    background-color: var(--background-alt);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
}

.contact-method {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

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

.contact-method i {
    width: 40px;
    height: 40px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-right: 15px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 30px;
    border-radius: var(--border-radius);
    max-width: 500px;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.btn-primary {
    display: inline-block;
    padding: 12px 24px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Footer */
footer {
    background-color: #1a1a1a;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 32px;
    margin-right: 10px;
}

.footer-links {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.footer-column h4 {
    margin-bottom: 20px;
    color: var(--accent);
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: white;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: var(--accent);
}

.footer-column ul li a.active {
    color: var(--accent);
}

.social-icons {
    display: flex;
    gap: 15px;
}

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

.social-icons a:hover {
    background: var(--accent);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .policy-section {
        flex-direction: column;
        gap: 20px;
    }
    
    .section-icon {
        margin: 0 auto;
    }
    
    .storage-info {
        flex-direction: column;
    }
    
    .rights-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}