@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;800&display=swap');

:root {
    --bg-base: #0a0a0f;
    --bg-surface: rgba(255, 255, 255, 0.03);
    --bg-surface-hover: rgba(255, 255, 255, 0.08);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-glow: #6366f1;
    --accent-secondary: #8b5cf6;
    --success: #10b981;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.15), transparent 25%);
    background-attachment: fixed;
}

/* Header */
header {
    padding: 6rem 2rem 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    opacity: 0.15;
    z-index: -1;
    filter: blur(60px);
}

header h1 {
    font-size: 4rem;
    font-weight: 800;
    margin: 0 0 1rem 0;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInDown 0.8s ease-out;
}

header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.nav-links {
    margin-top: 2.5rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    animation: fadeIn 1s ease-out 0.4s both;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background: var(--bg-surface);
    border: 1px solid transparent;
}

.nav-links a:hover {
    color: #fff;
    background: var(--bg-surface-hover);
    border-color: var(--border-color);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

/* Main Content */
main {
    max-width: 800px;
    margin: 0 auto 4rem;
    padding: 3rem;
    background: rgba(20, 20, 25, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

h2 {
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

h2:first-child {
    margin-top: 0;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Feature Cards */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-surface);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card h3 {
    margin: 0 0 0.75rem 0;
    color: #fff;
    font-size: 1.25rem;
}

.feature-card p {
    margin: 0;
    font-size: 0.95rem;
}

/* Lists */
ol {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    margin-bottom: 2rem;
}

li {
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

li strong {
    color: #fff;
}

/* Privacy Page Highlights */
.highlight-box {
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 2rem;
    border-radius: 16px;
    margin: 0 0 3rem 0;
    text-align: center;
}

.highlight-box h3 {
    color: var(--success);
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
}

.highlight-box p {
    color: var(--success);
    margin: 0;
}

ul {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    margin-bottom: 2rem;
}

footer {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-glow);
    text-decoration: underline;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 3rem;
    }

    main {
        padding: 2rem;
    }
}