:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-color);
    line-height: 1.6;
    color: var(--dark-color);
    margin: 0;
    padding: 0;
}

.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-brand i {
    color: var(--secondary-color);
}

.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-section .btn {
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.hero-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.stat-card {
    padding: 2rem;
    text-align: center;
    border-radius: 15px;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: #6c757d;
    font-weight: 500;
}

.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 15px 15px 0 0 !important;
    border: none;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.sport-card {
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    height: 100%;
}

.sport-card:hover {
    border-color: var(--secondary-color) !important;
    transform: translateY(-3px);
}

.sport-card .card-body {
    text-align: center;
    padding: 2rem 1rem;
}

.sport-card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.court-option {
    padding: 15px;
    border: 2px solid #dee2e6;
    border-radius: 10px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: white;
}

.court-option:hover {
    border-color: var(--secondary-color);
    background-color: #f8f9fa;
}

.court-option.selected {
    border-color: var(--secondary-color);
    background-color: #e3f2fd;
}

.court-option input[type="radio"]:checked + label {
    color: var(--secondary-color);
    font-weight: 600;
}

.court-option input[type="radio"]:checked {
    accent-color: var(--secondary-color);
}

/* SISTEMA DE MODALES CORREGIDO - SIN PARPADEO */
.modal {
    backdrop-filter: blur(5px);
    padding-right: 0 !important;
}

.modal-content {
    border: none;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 15px 15px 0 0;
    border-bottom: none;
    padding: 1.5rem;
}

.modal-header .modal-title {
    font-weight: 600;
    font-size: 1.25rem;
}

.modal-header .btn-close {
    filter: invert(1);
    opacity: 0.8;
    background-size: 0.8rem;
    padding: 0.5rem;
    margin: 0;
}

.modal-header .btn-close:hover {
    opacity: 1;
    transform: scale(1.1);
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 0 0 15px 15px;
}

/* Prevenir animaciones conflictivas en modales */
.modal.fade .modal-dialog {
    transform: scale(0.9);
    transition: transform 0.2s ease-out;
}

.modal.show .modal-dialog {
    transform: scale(1);
}

/* Asegurar que los modales no se muevan */
.modal-backdrop {
    background-color: rgba(0,0,0,0.5);
}

.modal-backdrop.show {
    opacity: 0.5;
}

/* Calendario */
.fc-event {
    cursor: pointer;
    border: none;
    border-radius: 5px;
    padding: 2px 4px;
    font-size: 0.85rem;
}

.fc-daygrid-day-number {
    font-weight: 600;
}

.fc-toolbar {
    flex-wrap: wrap;
}

.fc-toolbar-title {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Sidebar admin */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 56px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    background-color: #f8f9fa;
    width: 250px;
}

.sidebar .nav-link {
    font-weight: 500;
    color: #495057;
    padding: 0.75rem 1.5rem;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover {
    color: var(--secondary-color);
    background-color: #e9ecef;
    border-left-color: var(--secondary-color);
}

.sidebar .nav-link.active {
    color: var(--secondary-color);
    background-color: #e3f2fd;
    border-left-color: var(--secondary-color);
}

.sidebar .nav-link i {
    width: 20px;
    margin-right: 10px;
    text-align: center;
}

/* Tablas */
.table {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 0 1px #dee2e6;
}

.table th {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table td {
    padding: 1rem;
    vertical-align: middle;
    border-color: #dee2e6;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

/* Badges */
.badge {
    font-size: 0.75em;
    font-weight: 500;
    padding: 0.5em 0.75em;
    border-radius: 50px;
}

.badge.bg-warning {
    color: #000;
}

/* Formularios */
.form-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.form-control, .form-select {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.invalid-feedback {
    font-size: 0.875rem;
    color: var(--danger-color);
    margin-top: 0.25rem;
}

.btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), #2980b9);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, var(--secondary-color));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d, #495057);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #219653);
    border: none;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #e67e22);
    border: none;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #c0392b);
    border: none;
}

.btn-outline-primary {
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--secondary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
}

.btn-group .btn:last-child {
    border-top-right-radius: 10px;
    border-bottom-right-radius: 10px;
}

/* Notificaciones personalizadas */
.fulvaso-alert {
    animation: slideInRight 0.3s ease-out;
    border: none;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Estados de carga */
.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Utilidades */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cursor-pointer {
    cursor: pointer;
}

.shadow-custom {
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.border-radius-15 {
    border-radius: 15px;
}

/* Prevenir selección de texto en botones */
.btn {
    user-select: none;
}

/* Imágenes responsivas */
.img-thumbnail {
    border-radius: 10px;
    border: 2px solid #dee2e6;
}

/* Paginación */
.pagination .page-link {
    border-radius: 10px;
    margin: 0 2px;
    border: none;
    color: var(--primary-color);
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--secondary-color), #2980b9);
    border-color: var(--secondary-color);
}

/* FOOTER FIXED - Texto visible */
footer.bg-dark {
    background-color: var(--dark-color) !important;
}

footer .text-muted {
    color: #adb5bd !important;
}

footer .text-muted:hover {
    color: white !important;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .stat-card h3 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    /* Modales en móviles */
    .modal-dialog {
        margin: 0.5rem;
    }
    
    .modal-content {
        border-radius: 10px;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    /* Sidebar en móviles */
    .sidebar {
        width: 100%;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    /* Tablas en móviles */
    .table-responsive {
        border-radius: 10px;
    }
    
    .btn-group {
        display: flex;
        flex-wrap: wrap;
        gap: 0.25rem;
    }
    
    .btn-group .btn {
        flex: 1;
        min-width: auto;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .hero-section .btn {
        display: block;
        width: 100%;
        margin-bottom: 10px;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 1rem;
    }
}

/* Print styles */
@media print {
    .navbar,
    .sidebar,
    .btn,
    .modal-footer {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #dee2e6 !important;
    }
}