:root {
    
    --primary: #004B87;
    --secondary: #CBD5E1; 
    --primary-hover: #003360;
    --bg-color: #F8FAFC;
    --text-color: #1E293B;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
}

header {
    background-color: var(--primary);
    color: white;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.card {
    background: white;
    border: 1px solid var(--secondary);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

input {
    padding: 0.5rem;
    border: 1px solid var(--secondary);
    border-radius: 4px;
    margin-right: 0.5rem;
}

button {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--primary-hover);
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    padding: 0.75rem;
    border-bottom: 1px solid var(--secondary);
}

li:last-child {
    border-bottom: none;
}