:root {
    --primary-color: #005f73;
    --secondary-color: #00a896;
    --background-color: #f4f7f9;
    --text-color: #333;
    --card-bg-color: #fff;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --hover-shadow-color: rgba(0, 0, 0, 0.2);
}

/* Estilos generales */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    display: flex;
    transition: margin-left 0.3s;
}

/* Menú lateral */
.sidebar {
    width: 250px;
    background-color: var(--card-bg-color);
    height: 100vh;
    position: fixed;
    box-shadow: 2px 0 5px var(--shadow-color);
    transition: width 0.3s;
}

.logo {
    padding: 20px;
    text-align: center;
    background-color: var(--primary-color);
    color: #fff;
}

/* Dashboard General */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.kpi-card {
    background-color: var(--card-bg-color);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-color);
    text-align: center;
}

.kpi-card .value {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--primary-color);
}

.kpi-card .label {
    font-size: 1em;
    color: #666;
}

.charts-container {
    background-color: var(--card-bg-color);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-color);
}

.menu ul {
    list-style: none;
    padding: 0;
}

.menu ul li a {
    display: block;
    padding: 15px 20px;
    text-decoration: none;
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    border-left: 3px solid transparent;
}

.menu ul li a:hover, .menu ul li a.active {
    background-color: #e0f7fa;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

/* Contenido principal */
.main-content {
    margin-left: 250px;
    padding: 20px;
    width: calc(100% - 250px);
}

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

/* Tarjetas de cursos */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.course-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    box-shadow: 0 4px 8px var(--shadow-color);
    padding: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px var(--hover-shadow-color);
}

.course-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.course-card .instructor {
    font-size: 0.9em;
    color: #777;
    margin-bottom: 15px;
}

.progress-container {
    margin-bottom: 15px;
}

.progress-bar {
    width: 100%;
    background-color: #e0e0e0;
    border-radius: 5px;
    height: 10px;
    overflow: hidden; /* Asegura que el progreso no se salga */
}

.progress {
    background-color: var(--secondary-color);
    height: 100%;
    border-radius: 5px;
    width: 0%; /* Inicia en 0 */
    transition: width 0.5s ease-in-out;
}

.progress-text {
    font-size: 0.8em;
    text-align: right;
    color: #555;
}

.course-card .btn {
    width: 100%;
    text-align: center;
    margin-top: 10px;
    transition: background-color 0.3s, transform 0.2s;
}

.course-card .btn:hover {
    transform: scale(1.05);
}

.course-card .btn.completed {
    background-color: #28a745; /* Verde para completado */
    cursor: default;
}

/* Importador de archivos */
.importer {
    margin-top: 30px;
    padding: 20px;
    background-color: var(--card-bg-color);
    border-radius: 10px;
    box-shadow: 0 4px 8px var(--shadow-color);
}

#import-button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#import-button:hover {
    background-color: #004d5a;
}

/* Vistas y navegación */
.view {
    display: none;
}

.view.active {
    display: block;
}

/* Estilos de la tabla del catálogo */
.table-container {
    overflow-x: auto;
}

#courses-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

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

#courses-table th {
    background-color: var(--primary-color);
    color: #fff;
}

#courses-table tbody tr:nth-child(even) {
    background-color: #f2f2f2;
}

/* Botones de acciones en la tabla */
.action-buttons button {
    margin-right: 5px;
    padding: 5px 10px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.btn-edit {
    background-color: var(--secondary-color);
    color: #fff;
}

.btn-delete {
    background-color: #e74c3c;
    color: #fff;
}

/* Barra de herramientas */
.toolbar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.btn {
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #ccc;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}


/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 500px;
    border-radius: 10px;
    position: relative;
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

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

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

.form-group input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
}


/* Perfil de Usuario */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    grid-template-areas:
        "card details"
        "stats activity";
    gap: 20px;
}

.profile-card { grid-area: card; }
.profile-details { grid-area: details; }
.profile-stats { grid-area: stats; }
.profile-activity { grid-area: activity; }

.profile-card, .profile-details, .profile-stats, .profile-activity {
    background-color: var(--card-bg-color);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-color);
}

.profile-header {
    text-align: center;
    margin-bottom: 20px;
}

.profile-pic {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 10px;
    border: 3px solid var(--primary-color);
}

.profile-body h2 {
    margin: 0;
    color: var(--primary-color);
}

.profile-body p {
    color: #666;
}

#activity-feed {
    list-style: none;
    padding: 0;
}

#activity-feed li {
    padding: 10px;
    border-bottom: 1px solid #eee;
}

/* Historial de Certificaciones */
#certifications-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.certification-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: var(--card-bg-color);
    border-radius: 10px;
    box-shadow: var(--shadow-color);
    border-left: 5px solid var(--secondary-color);
}

.certification-item h3 {
    margin: 0 0 5px 0;
    color: var(--primary-color);
}

.certification-item p {
    margin: 0;
    color: #666;
}


/* Responsive */
@media (max-width: 992px) {
    .profile-grid {
        grid-template-columns: 1fr;
        grid-template-areas:
            "card"
            "details"
            "stats"
            "activity";
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        box-shadow: none;
    }

    .main-content {
        margin-left: 0;
        width: 100%;
        padding: 10px;
    }

    .container {
        flex-direction: column;
    }
}