body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f8;
    color: #333;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

h1,
h2,
h3,
h4 {
    margin-top: 0;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

/* Charts Grid System */
.charts-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
}

.chart-card {
    flex: 1;
    min-width: 300px;
    /* Responsive Breakpoint */
    margin-bottom: 0;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 15px;
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

.mini-input {
    font-size: 0.8em;
    padding: 4px;
    border: none;
    background: #f9f9f9;
    width: 100%;
}

/* Buttons */
button,
.btn-small,
.btn-logout {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    text-decoration: none;
    display: inline-block;
}

button:hover {
    background-color: #0056b3;
}

.btn-logout {
    background-color: transparent;
    color: #dc3545;
    border: 1px solid #dc3545;
    padding: 5px 10px;
    font-size: 14px;
}

.btn-logout:hover {
    background-color: #dc3545;
    color: white;
}

.btn-small {
    padding: 4px 12px;
    font-size: 0.9rem;
    background-color: #6c757d;
}

.btn-small:hover {
    background-color: #5a6268;
}

.btn-red {
    background-color: #dc3545;
    margin-left: 5px;
}

.btn-red:hover {
    background-color: #c82333;
}

.btn-delete {
    background-color: #dc3545;
    font-size: 0.9rem;
    padding: 6px 12px;
}

.btn-delete:hover {
    background-color: #bd2130;
}

/* Tables & Badges */
.group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.badge {
    background: #28a745;
    color: white;
    padding: 5px 10px;
    border-radius: 12px;
    font-size: 0.9em;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 0;
}

th,
td {
    text-align: left;
    padding: 10px;
    border-bottom: 1px solid #eee;
    font-size: 0.95rem;
}

th {
    background-color: #f9f9f9;
}