:root {
    --primary: #7C4DFF;
    --primary-hover: #6c42e0;
    --text-dark: #06040E;
    --text-neutral: #6D727D;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --border: #E5E7EB;
    --font-family: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary);
    text-decoration: none;
}

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

nav a {
    text-decoration: none;
    color: var(--text-neutral);
    font-weight: 500;
    transition: color 0.2s;
    cursor: pointer;
}

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

.lang-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: transparent;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-dark);
    transition: all 0.2s;
}

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

/* Main Content */
main {
    min-height: 80vh;
}

.section {
    display: none;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    animation: fadeIn 0.3s ease-in-out;
}

.section.active {
    display: block;
}

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

/* Hero Section */
.hero {
    text-align: center;
    padding: 6rem 2rem;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-neutral);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px rgba(124, 77, 255, 0.3);
}

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

.btn-secondary {
    background-color: white;
    color: var(--text-dark);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--text-dark);
    transform: translateY(-2px);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: transform 0.2s;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(124, 77, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary);
    font-size: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

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

/* Policy & Terms */
.policy-content {
    max-width: 800px;
    margin: 0 auto;
}

.policy-content h1 {
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

.policy-content .policy-date {
    color: var(--text-neutral);
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.policy-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.policy-content p {
    margin-bottom: 1rem;
    color: var(--text-neutral);
    line-height: 1.8;
}

.policy-content ul {
    margin: 0.5rem 0 1.5rem 1.5rem;
    color: var(--text-neutral);
    line-height: 1.8;
}

.policy-content li {
    margin-bottom: 0.5rem;
}

.policy-content li strong {
    color: var(--text-dark);
}

.policy-content a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Footer */
footer {
    padding: 2rem;
    text-align: center;
    color: var(--text-neutral);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .cta-group {
        flex-direction: column;
    }

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