:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --secondary: #0f172a;
    --text: #334155;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --accent: #06b6d4;
    --gradient: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
}

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

body {
    background-color: var(--white);
    color: var(--text);
    line-height: 1.6;
}

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

/* Header */
header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    transition: 0.3s;
}

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

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.2);
    background: var(--primary-dark);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--bg-light) 0%, white 100%);
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-outline {
    border: 2px solid var(--text-light);
    background: transparent;
    color: var(--text);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn-outline:hover {
    border-color: var(--secondary);
    color: var(--secondary);
}

/* Features */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title span {
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 2px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-top: 0.5rem;
}

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

.feature-card {
    padding: 2rem;
    border-radius: 20px;
    background: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary);
}

/* Pricing */
.pricing {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.pricing-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 24px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.pricing-card.popular {
    transform: scale(1.05);
    border: 2px solid var(--primary);
    box-shadow: 0 20px 25px -5px rgba(79, 70, 229, 0.15);
    z-index: 1;
}

.popular-tag {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--secondary);
    margin: 1.5rem 0;
}

.price span {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 500;
}

.features-list {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
}

.features-list li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.check {
    color: var(--primary);
    margin-right: 0.75rem;
}

/* Footer */
footer {
    background: var(--secondary);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    margin-bottom: 1.5rem;
    color: white;
}

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

.footer-col a {
    color: #94a3b8;
    text-decoration: none;
    margin-bottom: 0.75rem;
    display: block;
    transition: 0.3s;
}

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

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .pricing-card.popular {
        transform: scale(1);
    }
}