/* Import modern font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Variables for Design System */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --dark-bg: #0f0f23;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --accent-color: #667eea;
    --accent-hover: #7c8ff5;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(240, 147, 251, 0.1) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundShift 20s ease infinite alternate;
}

@keyframes backgroundShift {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 30px);
    }
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Header and Navigation */
header {
    margin-bottom: 3rem;
    animation: fadeInDown 0.6s ease;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
}

nav ul li {
    position: relative;
}

nav ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    display: block;
}

nav ul li a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

nav ul li a.active {
    color: var(--text-primary);
    background: var(--primary-gradient);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 3rem;
    padding: 3rem 0;
    animation: fadeIn 0.8s ease;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    animation: slideInUp 0.8s ease;
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 300;
    animation: slideInUp 0.8s ease 0.1s backwards;
}

/* Content Cards */
.content-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: fadeInUp 0.8s ease;
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.content-card h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.content-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.content-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.content-card ul {
    color: var(--text-secondary);
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

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

/* Privacy Content Specific */
.privacy-content {
    text-align: left;
}

.privacy-content h2 {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--card-border);
}

.privacy-content h2:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.contact-info {
    background: rgba(102, 126, 234, 0.1);
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
}

/* Links */
.link,
a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.link:hover,
a:hover {
    color: var(--accent-hover);
}

.link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -2px;
    left: 0;
    background: var(--accent-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Footer */
footer {
    margin-top: auto;
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--card-border);
    animation: fadeIn 1s ease;
}

footer a {
    color: var(--accent-color);
    margin-left: 0.5rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@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 slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1rem;
    }

    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    nav ul li a {
        text-align: center;
    }

    .content-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .content-card h2 {
        font-size: 1.5rem;
    }
}