/* Base styles */
body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    color: #333;
}

/* Layout */
.min-h-screen {
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Navigation */
nav {
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

nav a {
    color: #4a5568;
    text-decoration: none;
    padding: 0.5rem 1rem;
}

nav a:hover {
    color: #2d3748;
}

/* Cards */
.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

th {
    background: #f7fafc;
    font-weight: 600;
    color: #4a5568;
    text-transform: uppercase;
    font-size: 0.75rem;
}

/* Utilities */
.bg-gray-100 {
    background-color: #f7fafc;
}

.text-red-600 {
    color: #e53e3e;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
    }
}