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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #e8f4f8 0%, #d4e8f5 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 600px;
}

.card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    font-size: 2.8em;
    color: #1a3a52;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.1em;
    color: #667a8a;
    margin-bottom: 16px;
}

.description {
    font-size: 1em;
    color: #667a8a;
    margin-bottom: 28px;
    line-height: 1.5;
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 32px;
}

.option-card {
    padding: 18px;
    background: #f5f8fb;
    border-radius: 10px;
    border: 2px solid #e0e8f0;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.option-card:hover {
    background: #e8f2f9;
    border-color: #2172e6;
    transform: translateY(-2px);
}

.option-card h3 {
    font-size: 1.2em;
    color: #1a3a52;
    margin-bottom: 6px;
}

.option-card p {
    font-size: 0.95em;
    color: #667a8a;
}

.features-section {
    margin-top: 36px;
    padding-top: 32px;
    border-top: 2px solid #e0e8f0;
}

.features-section h2 {
    font-size: 1.5em;
    color: #1a3a52;
    margin-bottom: 20px;
}

.feature-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.feature {
    padding: 14px;
    background: #f5f8fb;
    border-radius: 8px;
    text-align: left;
}

.feature span {
    font-size: 1.5em;
    display: block;
    margin-bottom: 6px;
}

.feature p {
    font-size: 0.9em;
    color: #667a8a;
}

.card-footer {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 2px solid #e0e8f0;
    font-size: 0.85em;
    color: #999;
}