:root {
    --bg: #0a0a0b;
    --panel-bg: #141416;
    --text: #e2e2e6;
    --text-dim: #8e8e93;
    --accent: #7c4dff;
    --accent-glow: rgba(124, 77, 255, 0.3);
    --border: #2c2c2e;
    --hover: #1c1c1e;
}

body, html {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    padding: 24px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: #fff;
}

.logo span { color: var(--accent); }

.hero {
    padding: 100px 24px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(180deg, #fff 0%, #888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto 48px;
}

.cta-btn {
    background: var(--accent);
    color: white;
    text-decoration: none;
    padding: 16px 40px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 10px 30px var(--accent-glow);
    transition: all 0.3s ease;
    display: inline-block;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px var(--accent-glow);
    background: #8e62ff;
}

.header-cta {
    padding: 10px 24px; 
    font-size: 0.9rem;
}

.preview-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    perspective: 1000px;
}

.app-preview {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    height: auto;
    max-height: 700px;
    box-shadow: 0 50px 100px rgba(0,0,0,0.8);
    transform: rotateX(5deg);
    display: block;
    overflow: hidden;
    position: relative;
}

.app-preview::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, rgba(124, 77, 255, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

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

.features {
    padding: 100px 24px;
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    padding: 32px;
    border-radius: 24px;
    transition: border-color 0.3s;
}

.feature-card:hover {
    border-color: var(--accent);
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-glow);
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.2rem;
}

.feature-card h3 {
    margin-bottom: 12px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.feature-card p {
    color: var(--text-dim);
    font-size: 0.95rem;
}

footer {
    padding: 60px 24px;
    text-align: center;
    border-top: 1px solid var(--border);
    margin-top: 100px;
    color: var(--text-dim);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

@media (max-width: 768px) {
    header { padding: 20px; }
    .hero { padding: 60px 20px; }
    .preview-container { display: none; }
}