:root {
    /* Colors - Dark Premium Theme */
    --bg-color: #0a0a0a;
    --text-color: #e5e5e5;
    --text-muted: #a3a3a3;
    --primary-color: #3b82f6;
    /* Blue */
    --primary-hover: #2563eb;
    --accent-color: #8b5cf6;
    /* Violet */
    --dark-surface: #171717;
    --border-color: #262626;

    /* Typography */
    --font-sans: 'Inter', sans-serif;
}

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

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.site-header {
    padding: 2rem 0;
    /* Increased padding */
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

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

.logo {
    font-weight: 900;
    /* Bolder */
    font-size: 2rem;
    /* Larger */
    letter-spacing: -0.05em;
    color: white;
    text-decoration: none;
    background: linear-gradient(to right, #60a5fa, #c084fc);
    /* Lighter gradients for dark mode */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    text-transform: uppercase;
    /* More punchy */
    letter-spacing: 0.05em;
    font-family: var(--font-sans);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.4);
}

/* Hero Section */
.hero {
    padding: 8rem 0;
    /* More breathing room */
    position: relative;
    overflow: hidden;
    /* Subtle background glow */
    background: radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.05), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.05), transparent 25%);
}

.hero-container {
    display: flex;
    align-items: center;
    gap: 6rem;
    /* More gap */
}

.hero-content {
    flex: 1;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-height: 600px;
    object-fit: cover;
}

.hero h1 {
    font-size: 4rem;
    /* Larger title */
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin-bottom: 2rem;
    background: linear-gradient(to bottom right, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.35rem;
    /* Slightly larger */
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    line-height: 1.6;
}

/* Features Grid */
.features {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: white;
    letter-spacing: -0.02em;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background-color: rgba(23, 23, 23, 0.5);
    /* More subtle background */
    backdrop-filter: blur(12px);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(38, 38, 38, 0.5);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.5);
    background-color: rgba(23, 23, 23, 0.8);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    /* Kept color */
    margin-bottom: 1.5rem;
    /* Removed background and padding */
    background: transparent;
    padding: 0;
    border-radius: 0;
    display: inline-block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: white;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: #a1a1aa;
    /* Slightly lighter muted text for better contrast */
    line-height: 1.7;
    font-size: 1.05rem;
}

/* CTA Section */
.cta-section {
    padding: 8rem 0;
    text-align: center;
    background-color: var(--dark-surface);
    /* Fallback */
    position: relative;
}

/* Overlay for CTA bg readability */
.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(10, 10, 10, 0.8), rgba(10, 10, 10, 0.9));
    z-index: 1;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: white;
}

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

/* Footer */
.site-footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: #737373;
    background-color: var(--bg-color);
}

.footer-links {
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin: 0 1rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

/* Page Content (Privacy/Terms) */
.page-content {
    max-width: 800px;
    margin: 4rem auto;
    padding: 0 2rem;
}

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

.page-content h2 {
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: white;
}

.page-content p {
    margin-bottom: 1rem;
    color: #d4d4d4;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

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

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
}