:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-dark: #0f172a;
    --text-light: #f8fafc;
    --text-gray: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(15, 23, 42, 0.8);
    border-bottom: 1px solid var(--glass-border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.brand img {
    height: 32px;
    border-radius: 50%;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: white;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-ghost {
    color: white;
    background: transparent;
    border: 1px solid var(--glass-border);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.39);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.23);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0 1rem;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(15, 23, 42, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 30px;
    background: rgba(99, 102, 241, 0.1);
    color: #818cf8;
    border: 1px solid rgba(99, 102, 241, 0.2);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    font-weight: 500;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

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

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Features Section */
.features {
    padding: 5rem 5%;
    background: #0b1121;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 16px;
    transition: transform 0.3s;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-desc {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Footer */
footer {
    padding: 3rem 5%;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-gray);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }
}

/* Pricing Section */
.pricing {
    padding: 5rem 5%;
    background: var(--bg-dark);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    font-weight: 700;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.3s;
}

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

.pricing-card.popular {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.price-header {
    text-align: center;
    margin-bottom: 2rem;
}

.price-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: white;
}

.price span {
    font-size: 1rem;
    color: var(--text-gray);
    font-weight: 400;
}

.price-features {
    list-style: none;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.price-features li {
    margin-bottom: 1rem;
    color: #cbd5e1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* About Section */
.about {
    padding: 5rem 5%;
    background: #0b1121;
    text-align: center;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 4rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-gray);
    font-weight: 500;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}