:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --secondary: #10b981;
    --bg: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --card-bg: #f8fafc;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--bg);
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.2s;
}

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

.btn-small {
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white !important;
    border-radius: 8px;
}

.hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    padding: 8rem 0;
    align-items: center;
}

.highlight {
    color: var(--primary);
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
}

.btn-primary {
    padding: 1rem 2rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: background 0.2s;
}

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

.btn-secondary {
    padding: 1rem 2rem;
    background: var(--card-bg);
    color: var(--text);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.btn-secondary:hover {
    background: #f1f5f9;
}

.app-mockup {
    background: #1e293b;
    padding: 1rem;
    border-radius: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-width: 320px;
    margin: 0 auto;
}

.mockup-content {
    background: #0f172a;
    border-radius: 32px;
    overflow: hidden;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mockup-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding-bottom: 8rem;
}

.feature-card {
    padding: 2.5rem;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

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

footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-muted);
    max-width: 300px;
}

footer h4 {
    margin-bottom: 1.5rem;
    font-size: 1rem;
    font-weight: 600;
}

footer ul {
    list-style: none;
}

footer ul li {
    margin-bottom: 0.75rem;
}

footer ul a {
    text-decoration: none;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 4rem 0;
    }
    .hero p {
        margin: 0 auto 2.5rem;
    }
    .hero-btns {
        justify-content: center;
    }
    h1 {
        font-size: 2.5rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}