@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;700;800&display=swap');

:root {
    /* Color Palette - Light Mode Default */
    --bg-color: #f8fafc;
    --text-color: #0f172a;
    --text-muted: #64748b;
    
    --primary-color: #6366f1; /* Indigo */
    --primary-hover: #4f46e5;
    --secondary-color: #ec4899; /* Pink */
    
    --surface-color: rgba(255, 255, 255, 0.7);
    --surface-border: rgba(255, 255, 255, 0.5);
    --card-shadow: 0 8px 32px rgba(31, 38, 135, 0.07);
    
    --accent-gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

[data-theme="dark"] {
    --bg-color: #0b0f19;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    
    --primary-color: #818cf8;
    --primary-hover: #6366f1;
    --secondary-color: #f472b6;
    
    --surface-color: rgba(30, 41, 59, 0.6);
    --surface-border: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color var(--transition-medium), color var(--transition-medium);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Glassmorphism Utilities */
.glass {
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    box-shadow: var(--card-shadow);
    border-radius: 16px;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: padding var(--transition-medium), background var(--transition-medium);
}

header.scrolled {
    padding: 0.5rem 0;
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--surface-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-medium);
}

nav a:hover::after, nav a.active::after {
    width: 100%;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    transition: transform var(--transition-fast);
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

/* Decorative Background Blobs */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    z-index: -1;
    animation: float 10s infinite ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-color);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary-color);
    bottom: 100px;
    left: -50px;
    animation-delay: -5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

.hero-content {
    max-width: 600px;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-family: var(--font-heading);
    text-align: center;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
    color: white;
}

/* Grids & Cards */
.section {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    padding: 2rem;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.card p {
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--surface-border);
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--surface-border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Page Headers (Privacy, Support, Blog) */
.page-header {
    padding: 120px 0 60px;
    text-align: center;
    position: relative;
}

.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: 6rem;
}

.page-content h2 {
    margin-top: 2.5rem;
}

.page-content p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.page-content ul, .page-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    color: var(--text-muted);
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile hide for now */
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}