:root {
    --primary-color: #646cff;
    --primary-hover: #747bff;
    --bg-color: #1a1a1a;
    --surface-color: #242424;
    --text-color: #ffffff;
    --text-secondary: #rgba(255, 255, 255, 0.87);
    --border-color: #333;
}

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

body {
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    font-weight: 400;
    color: var(--text-color);
    background-color: var(--bg-color);
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header */
header {
    padding: 1.5rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: 0.6em 1.2em;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.25s;
    border: 1px solid transparent;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    text-align: center;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(120deg, #bd34fe 30%, #41d1ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin-bottom: 2.5rem;
}

/* Features */
.features {
    padding: 4rem 0;
    background-color: var(--surface-color);
}

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

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

.feature-card {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

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

/* Screenshots */
.preview {
    padding: 4rem 0;
    text-align: center;
}

.preview img {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    border: 1px solid var(--border-color);
}

/* Use Cases */
.use-cases {
    padding: 4rem 0;
    background-color: var(--surface-color);
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    align-items: center;
}

/* Footer */
footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
}

.footer-links {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }

    .use-case-grid {
        grid-template-columns: 1fr;
    }
}