body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f7f9fc;
    color: #333;
}

.container {
    max-width: 95%;
    margin: 0 auto;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

h1, h2 {
    text-align: center;
    color: #2c3e50;
}

h2 {
    margin-top: 40px;
}

fieldset {
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    padding: 20px;
    margin-bottom: 20px;
}

legend {
    font-weight: bold;
    color: #34495e;
    padding: 0 10px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
}

input[type="text"],
input[type="number"],
input[type="datetime-local"],
select,
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

input:focus, select:focus, textarea:focus {
    border-color: #4CAF50;
    outline: none;
}

button[type="submit"] {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.3s;
}

button[type="submit"]:hover {
    background-color: #45a049;
}

hr {
    margin: 40px 0;
    border: 0;
    border-top: 1px solid #eee;
}

.records-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    white-space: nowrap;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border: 1px solid #ddd;
    vertical-align: middle;
}

th {
    background-color: #f2f2f2;
    font-weight: bold;
    position: sticky;
    top: 0;
    z-index: 1;
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}

.delete-btn, .edit-btn, .export-btn {
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 5px;
    font-size: 12px;
}

.delete-btn { background-color: #f44336; }
.edit-btn { background-color: #2196F3; }
.export-btn { background-color: #FF9800; }

.export-all-btn {
    background-color: #008CBA;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    text-align: center;
}

.stat-item {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 5px;
}

.stat-item h3 {
    margin: 0 0 10px;
    font-size: 16px;
    color: #555;
}

.stat-item p {
    margin: 0;
    font-size: 24px;
    font-weight: bold;
    color: #333;
}