/* --- Base Styles --- */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-bg: #f4f7f6;
    --dark-text: #333;
    --light-text: #fff;
    --border-color: #e0e0e0;
    --card-bg: #fff;
    --header-bg: #f8f9fa;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--light-bg);
    color: var(--dark-text);
    display: flex; /* Flexbox para layout sidebar + content */
    min-height: 100vh;
}

/* --- Dashboard Navigation (Sidebar) --- */
.dashboard-nav {
    width: 250px;
    background-color: #2c3e50; /* Color oscuro para la barra de navegación */
    color: var(--light-text);
    padding: 20px 0;
    box-shadow: 2px 0 5px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    position: sticky; /* Sticky para que se quede visible al hacer scroll */
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto; /* Para scroll si el contenido es largo */
    transition: width 0.3s ease; /* Transición para responsividad */
    z-index: 1000;
}

.dashboard-nav h2 {
    text-align: center;
    color: var(--primary-color); /* Color azul para el título */
    margin-bottom: 30px;
    font-size: 1.8em;
    padding: 0 15px;
}

.dashboard-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dashboard-nav ul li {
    margin-bottom: 5px;
}

.dashboard-nav ul li a {
    display: block;
    padding: 12px 20px;
    color: var(--light-text);
    text-decoration: none;
    font-size: 1.1em;
    transition: background-color 0.3s ease, color 0.3s ease;
    border-left: 5px solid transparent; /* Efecto hover */
}

.dashboard-nav ul li a:hover,
.dashboard-nav ul li a.active { /* Clase active para la página actual */
    background-color: #34495e;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

/* --- Main Content Area --- */
.main-content {
    flex-grow: 1;
    padding: 30px;
    background-color: var(--light-bg);
    overflow-y: auto; /* Permite scroll solo en el contenido */
}

.page-title {
    color: #2c3e50;
    margin-bottom: 25px;
    font-size: 2.2em;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

/* --- Card Component (Used for Forms and Tables) --- */
.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    overflow: hidden; /* Para tablas responsivas */
}

.card-header {
    background-color: var(--header-bg);
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    margin: 0;
    font-size: 1.6em;
    color: #34495e;
}

.card-body {
    padding: 20px;
}

/* --- Form Styles --- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #555;
}

.form-control {
    width: calc(100% - 22px); /* Ancho completo menos padding */
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box; /* Incluye padding y border en el ancho total */
    font-size: 1em;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px; /* Espacio entre columnas */
    margin-bottom: 0; /* Resetea margin-bottom si se usa form-group dentro */
}

.form-row .form-group {
    flex: 1; /* Distribuye el espacio */
    min-width: 280px; /* Ancho mínimo para columnas */
    margin-bottom: 0;
}

.form-actions {
    margin-top: 25px;
    display: flex;
    justify-content: flex-end; /* Alinea botones a la derecha */
    gap: 15px; /* Espacio entre botones */
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 1em;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--light-text);
}
.btn-primary:hover { background-color: #0056b3; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(0, 123, 255, 0.2); }

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--light-text);
}
.btn-secondary:hover { background-color: #545b62; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(108, 117, 125, 0.2); }

.btn-success {
    background-color: var(--success-color);
    color: var(--light-text);
}
.btn-success:hover { background-color: #218838; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(40, 167, 69, 0.2); }

.btn-edit {
    background-color: var(--warning-color);
    color: var(--dark-text);
}
.btn-edit:hover { background-color: #e0a800; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(255, 193, 7, 0.2); }

.btn-delete {
    background-color: var(--danger-color);
    color: var(--light-text);
}
.btn-delete:hover { background-color: #c82333; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(220, 53, 69, 0.2); }

.btn-info {
    background-color: var(--info-color);
    color: var(--light-text);
}
.btn-info:hover { background-color: #138496; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(23, 162, 184, 0.2); }

.btn-sm {
    padding: 7px 14px;
    font-size: 0.85em;
    margin: 0 3px; /* Espacio entre botones pequeños */
}

/* --- Table Styles --- */
.table-responsive {
    overflow-x: auto; /* Permite scroll horizontal en tablas */
    margin-top: 20px;
    border: 1px solid var(--border-color); /* Borde sutil para el contenedor */
    border-radius: 8px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--card-bg);
}

.data-table th, .data-table td {
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    text-align: left;
    vertical-align: middle;
}

.data-table th {
    background-color: var(--primary-color);
    color: var(--light-text);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table tbody tr:nth-child(even) {
    background-color: #f8f8f8;
}

.data-table tbody tr:hover {
    background-color: #e9ecef;
}

.player-photo-thumb, .shield-thumb, .logo-thumb {
    width: 50px;
    height: 50px;
    object-fit: contain; /* Ajusta la imagen dentro del contenedor */
    border-radius: 5px;
    border: 1px solid #ddd;
    background-color: #fff; /* Fondo blanco si la imagen tiene transparencia */
    padding: 2px;
}

.actions {
    white-space: nowrap; /* Evita que los botones se rompan en varias líneas */
}

/* --- Messages --- */
.message, .error {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-size: 1.1em;
    font-weight: bold;
}

.message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.no-results {
    text-align: center;
    padding: 30px;
    font-size: 1.2em;
    color: #777;
    background-color: #fdfdfd;
    border-radius: 5px;
    border: 1px solid #eee;
    margin-top: 20px;
}

/* --- Pagination Controls --- */
.pagination-controls {
    text-align: center;
    margin-top: 30px;
    padding: 15px;
    background-color: var(--header-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.pagination-btn {
    display: inline-block;
    padding: 10px 18px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    text-decoration: none;
    color: var(--primary-color);
    background-color: var(--card-bg);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.pagination-btn:hover {
    background-color: #e9ecef;
    border-color: var(--primary-color);
}

.pagination-btn.active {
    background-color: var(--primary-color);
    color: var(--light-text);
    border-color: var(--primary-color);
    font-weight: bold;
}


/* --- Responsive Design (Mobile First) --- */

/* Sidebar Toggle for smaller screens (if needed) */
/* Initially, the sidebar is fixed */

@media (max-width: 992px) { /* Tablet and smaller */
    .dashboard-nav {
        width: 200px;
        padding: 15px 0;
    }
    .dashboard-nav h2 {
        font-size: 1.6em;
    }
    .dashboard-nav ul li a {
        padding: 10px 15px;
        font-size: 1em;
    }
    .main-content {
        padding: 20px;
    }
    .page-title {
        font-size: 2em;
    }
    .card-header h2 {
        font-size: 1.4em;
    }
}

@media (max-width: 768px) { /* Mobile */
    body {
        flex-direction: column; /* Apila sidebar y contenido */
    }

    .dashboard-nav {
        width: 100%; /* Sidebar ocupa todo el ancho */
        height: auto; /* Altura automática */
        position: relative; /* No sticky en móvil para scroll normal */
        box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        padding: 10px 0;
        overflow-y: visible;
        border-radius: 0;
    }

    .dashboard-nav ul {
        display: flex; /* Menú horizontal */
        flex-wrap: wrap;
        justify-content: center; /* Centra los elementos del menú */
        gap: 5px; /* Espacio entre los elementos del menú */
        padding: 0 10px;
    }
    .dashboard-nav ul li {
        margin-bottom: 0;
    }
    .dashboard-nav ul li a {
        padding: 8px 12px;
        font-size: 0.9em;
        border-left: none; /* Quita el borde vertical */
        border-bottom: 3px solid transparent; /* Nuevo efecto hover/active */
        border-radius: 5px;
    }
    .dashboard-nav ul li a:hover,
    .dashboard-nav ul li a.active {
        border-left-color: transparent;
        border-bottom-color: var(--primary-color); /* Usa el nuevo borde */
        background-color: #34495e;
    }

    .dashboard-nav h2 {
        font-size: 1.5em;
        margin-bottom: 15px;
    }

    .main-content {
        margin: 15px;
        padding: 15px;
    }

    .page-title {
        font-size: 1.8em;
    }

    .form-row {
        flex-direction: column; /* Apila los campos del formulario */
        gap: 0;
    }
    .form-row .form-group {
        width: 100%; /* Ocupa todo el ancho */
        min-width: unset;
        margin-bottom: 20px;
    }

    .form-actions {
        flex-direction: column; /* Apila los botones de acción */
        gap: 10px;
        text-align: center;
    }
    .form-actions .btn {
        width: 100%;
        margin-left: 0;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        padding: 10px 15px;
    }
    .card-header h2 {
        font-size: 1.3em;
        margin-bottom: 10px;
    }
    .card-header .btn {
        width: 100%;
        margin-left: 0;
    }

    .data-table th, .data-table td {
        padding: 8px 10px;
        font-size: 0.85em;
    }

    .pagination-controls {
        flex-direction: column;
        gap: 5px;
    }
    .pagination-btn {
        width: 80%; /* Botones de paginación casi al 100% */
        margin: 0 auto;
    }
}

/* Extra small devices (less than 576px) */
@media (max-width: 576px) {
    .main-content {
        padding: 10px;
        margin: 10px;
    }
    .page-title {
        font-size: 1.6em;
    }
    .card-header h2 {
        font-size: 1.2em;
    }
    .btn {
        padding: 8px 15px;
        font-size: 0.9em;
    }
    .btn-sm {
        padding: 5px 10px;
        font-size: 0.75em;
    }
    .data-table th, .data-table td {
        padding: 6px 8px;
        font-size: 0.8em;
    }
    .player-photo-thumb, .shield-thumb, .logo-thumb {
        width: 40px;
        height: 40px;
    }
}