:root {
    --primary: #4F46E5;
    --primary-hover: #4338ca;
    --bg: #f9fafb;
    --surface: #ffffff;
    --text: #111827;
    --text-light: #4b5563;
    --border: #e5e7eb;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-family);
    color: var(--text);
    background-color: var(--bg);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.gateway-container {
    max-width: 800px;
    width: 100%;
}

.header {
    text-align: center;
    margin-bottom: 3rem;
}

.header h1 {
    font-size: 2.5rem;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
}

.cards {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    flex: 1;
    min-width: 300px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.card.hoverable:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.card p {
    color: var(--text-light);
    line-height: 1.5;
}

.footer {
    text-align: center;
    margin-top: 4rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.footer a:hover {
    text-decoration: underline;
}