/* General layout */
body {
    font-family: Arial, sans-serif;
    background: #f3f4f6;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: #ffffff;
    min-height: 100vh;
    padding: 10px 20px 40px 20px;
}

header h1 {
    margin: 10px 0;
}

/* Navigation bar */
nav {
    margin-bottom: 15px;
}

/* Menu links look like buttons */
nav a,
nav a:visited {
    display: inline-block;
    padding: 6px 10px;
    margin-right: 6px;
    border: 1px solid #cccccc;
    border-radius: 4px;
    background-color: #f3f4f6;
    text-decoration: none;
    color: #000;
    font-size: 14px;
}

nav a:hover {
    background-color: #e5e7eb;
}

/* Tables */
.list-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.list-table th,
.list-table td {
    border: 1px solid #ddd;
    padding: 6px 8px;
    font-size: 14px;
}

.list-table th {
    background: #f0f0f0;
}

/* Form elements */
.form input[type=text],
.form input[type=password],
.form input[type=email],
.form input[type=number],
.form input[type=date],
.form select {
    width: 100%;
    padding: 6px;
    box-sizing: border-box;
}

/* Buttons */
button,
.btn {
    background: #0366d6;
    color: white;
    padding: 6px 12px;
    border: none;
    cursor: pointer;
    border-radius: 3px;
    text-decoration: none;
}

button:hover,
.btn:hover {
    background: #024f9c;
}

/* Error message styling */
.error {
    color: red;
}

/* Grid layout helper (optional) */
.grid {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Card layout helper */
.card {
    border: 1px solid #ddd;
    padding: 10px;
    flex: 1 1 200px;
    background: #fafafa;
}