/* Estilos básicos */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f5f5f5;
}

/* Login */
.login-box {
    max-width: 300px;
    margin: 100px auto;
    background: white;
    padding: 30px;
    border-radius: 5px;
}

.login-box h2 {
    text-align: center;
    margin-bottom: 20px;
}

/* Formularios */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 3px;
    box-sizing: border-box;
}

/* Botones */
.btn {
    background-color: #007bff;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    background-color: #0056b3;
}

/* Panel admin */
.header {
    background-color: #333;
    color: white;
    padding: 15px;
    margin: -20px -20px 20px -20px;
}

.header h1 {
    margin: 0;
    display: inline-block;
}

.logout {
    float: right;
    color: white;
    text-decoration: none;
    background-color: #dc3545;
    padding: 5px 10px;
    border-radius: 3px;
}

/* Tarjetas */
.card {
    background: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
}

.stats {
    display: flex;
    gap: 20px;
}

.stat-card {
    flex: 1;
    text-align: center;
}

.stat-number {
    font-size: 2em;
    font-weight: bold;
    color: #007bff;
}

/* Tabla simple */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f8f9fa;
}

/* Mensajes */
.error {
    color: red;
    margin-bottom: 10px;
}

.success {
    color: green;
    margin-bottom: 10px;
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    padding: 10px;
    border-radius: 3px;
}