:root {
    --bg-color: #0b0f19;
    --text-color: #f3f4f6;
    --accent-color: #5850ec;
    --card-bg: #111827;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: -0.05em;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 1.5rem;
}

.btn-primary {
    background-color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.hero {
    text-align: center;
    max-width: 600px;
    margin: 100px auto 0 auto;
    padding: 0 1rem;
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.cta-group {
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: 8px;
    display: inline-flex;
    border: 1px solid #374151;
}

.cta-group input {
    background: transparent;
    border: none;
    color: white;
    padding: 0.5rem;
    outline: none;
    font-size: 1rem;
}

.btn-claim {
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
}