:root {
    --primary-color: #ff006e;
    --neon-pink: #ff006e;
    --neon-cyan: #00f5ff;
    --neon-purple: #b537f2;
    --success-color: #00ff00;
    --danger-color: #ff0080;
    --warning-color: #ffa500;
    --info-color: #00f5ff;
    --dark-bg: #0a0e27;
    --darker-bg: #050810;
    --card-bg: #1a1f3a;
    
    /* Variables Bootstrap para forzar fondo blanco en reservas */
    --bs-list-group-bg: #ffffff;
    --bs-list-group-color: #000000;
    --bs-list-group-border-color: rgba(255, 0, 110, 0.2);
    --bs-list-group-action-hover-bg: #ffffff;
    --bs-list-group-action-hover-color: #000000;
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--neon-pink) var(--dark-bg);
}

*::-webkit-scrollbar {
    width: 8px;
}

*::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

*::-webkit-scrollbar-thumb {
    background: var(--neon-pink);
    border-radius: 4px;
}

html, body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    background-color: var(--dark-bg);
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-image: 
        linear-gradient(135deg, rgba(255, 0, 110, 0.1) 0%, rgba(0, 245, 255, 0.05) 100%);
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--neon-pink) !important;
    text-shadow: 0 0 10px rgba(255, 0, 110, 0.5);
}

.gymtonic-text {
    font-size: 1.8rem;
    font-weight: 900;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
}

.bg-dark-gym {
    background: linear-gradient(135deg, #0a0e27 0%, #1a0f2e 100%) !important;
    box-shadow: 0 0 20px rgba(255, 0, 110, 0.3);
}

/* Navbar Links */
.navbar-nav .nav-link {
    color: #ffffff !important;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--neon-cyan) !important;
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.navbar-nav .nav-link i {
    color: var(--neon-cyan);
}

.user-email {
    font-weight: 700;
    color: #ffffff !important;
}

/* Animación de spinner para actualizar clases */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.spin {
    animation: spin 1s linear infinite;
    display: inline-block;
}

/* Login Screen */
.login-screen {
    position: relative;
    background-color: #0a0e27;
    overflow: hidden;
}

.login-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 1;
    z-index: 1;
}

.login-overlay {
    /* Eliminado - sin velado oscuro */
    display: none;
}

.login-card {
    position: relative;
    z-index: 3;
    background: linear-gradient(135deg, 
        rgba(26, 31, 58, 0.65) 0%, 
        rgba(15, 26, 46, 0.65) 100%) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 3px solid transparent !important;
    border-image: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan), var(--neon-purple)) 1;
    border-radius: 15px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 0 60px rgba(255, 0, 110, 0.5),
                0 0 40px rgba(0, 245, 255, 0.3),
                inset 0 0 30px rgba(0, 245, 255, 0.1);
    background-color: transparent !important;
}

.login-card .form-label,
.login-card p {
    color: #ffffff !important;
}

.gymtonic-logo {
    font-size: 3.5rem;
    font-weight: 900;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
    margin: 0;
    letter-spacing: -2px;
}

.text-neon {
    color: var(--neon-cyan) !important;
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
    font-weight: 600;
    letter-spacing: 1px;
}

/* Collapse de fechas */
.text-neon[data-bs-toggle="collapse"],
.text-white[data-bs-toggle="collapse"] {
    margin-bottom: 1rem;
}

.text-neon[data-bs-toggle="collapse"]:hover,
.text-white[data-bs-toggle="collapse"]:hover {
    opacity: 0.8;
}

.text-neon[data-bs-toggle="collapse"]:not([aria-expanded="true"]) .date-collapse-icon,
.text-neon[data-bs-toggle="collapse"]:not([aria-expanded="true"]) .stats-collapse-icon,
.text-white[data-bs-toggle="collapse"]:not([aria-expanded="true"]) .date-collapse-icon {
    transform: rotate(-90deg);
}

.login-input {
    background-color: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid var(--neon-cyan) !important;
    border-radius: 8px;
    color: #fff !important;
    box-shadow: 0 0 10px rgba(0, 245, 255, 0.1);
    transition: all 0.3s ease;
}

.login-input:focus {
    background-color: rgba(255, 255, 255, 0.08) !important;
    border-color: var(--neon-pink) !important;
    box-shadow: 0 0 20px rgba(255, 0, 110, 0.3),
                0 0 10px rgba(0, 245, 255, 0.2);
    color: #fff !important;
}

.login-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.border-neon {
    border: 1px solid var(--neon-cyan) !important;
    background-color: rgba(0, 245, 255, 0.05) !important;
    border-radius: 8px;
}

.text-info-neon {
    color: var(--neon-cyan) !important;
}

.btn-neon {
    background: #00d4ff;
    border: none;
    color: #000;
    font-weight: bold;
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    text-shadow: none;
    box-shadow: 0 2px 8px rgba(0, 212, 255, 0.3);
}

.btn-neon:hover:not(:disabled) {
    background: #00e5ff;
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.4);
    transform: translateY(-2px);
    color: #000;
}

.btn-neon:active:not(:disabled) {
    transform: translateY(0);
}

.btn-neon.btn-sm {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
}

.btn-neon:disabled {
    background: linear-gradient(45deg, rgba(255, 0, 110, 0.6), rgba(255, 51, 133, 0.6));
    box-shadow: 0 0 20px rgba(255, 0, 110, 0.5),
                inset 0 0 10px rgba(0, 0, 0, 0.3);
    opacity: 0.9;
    cursor: not-allowed;
}

/* Botón de clase ya reservada */
.btn-reserved {
    background: #00c853;
    border: 2px solid #00a843;
    color: #000;
    font-weight: bold;
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: not-allowed;
    opacity: 1;
    box-shadow: 0 2px 8px rgba(0, 200, 83, 0.3);
}

.btn-reserved i {
    color: #000;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid rgba(255, 0, 110, 0.2);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(255, 0, 110, 0.1);
    transition: all 0.3s ease;
    color: #fff;
}

.card:hover {
    border-color: var(--neon-cyan);
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px rgba(255, 0, 110, 0.2),
                0 0 20px rgba(0, 245, 255, 0.1);
}

.card-body {
    color: #fff;
}

.card-title {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.3);
}

/* Stats Cards */
.bg-info {
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.2), rgba(0, 245, 255, 0.05)) !important;
    border: 1px solid var(--neon-cyan);
    border-radius: 10px;
}

.bg-warning {
    background: linear-gradient(135deg, rgba(255, 255, 0, 0.2), rgba(255, 255, 0, 0.05)) !important;
    border: 1px solid var(--warning-color);
    border-radius: 10px;
}

.bg-success {
    background-color: #198754 !important;
    color: #fff !important;
    border-radius: 10px;
}

.bg-danger {
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.2), rgba(255, 0, 128, 0.05)) !important;
    border: 1px solid var(--danger-color);
    border-radius: 10px;
}

.text-white {
    color: #fff !important;
}

.table {
    border-collapse: separate;
    border-spacing: 0;
    color: #fff;
}

.table thead th {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.15), rgba(0, 245, 255, 0.1));
    border-bottom: 2px solid var(--neon-pink);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: var(--neon-cyan);
}

.table tbody tr {
    transition: all 0.2s;
    border-bottom: 1px solid rgba(255, 0, 110, 0.1);
}

.table tbody tr:hover {
    background-color: rgba(255, 0, 110, 0.1);
    border-left: 3px solid var(--neon-pink);
}

.badge-status {
    padding: 0.5em 0.8em;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Badge amarillo con fondo sólido para Planificada */
.badge.bg-warning.text-dark {
    background-color: #ffc107 !important;
    color: #000000 !important;
    font-weight: 600;
}

.badge-pending {
    background: linear-gradient(135deg, rgba(255, 255, 0, 0.3), rgba(255, 255, 0, 0.1));
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

/* Badge success: usa Bootstrap puro */
.badge.bg-success {
    background-color: #198754 !important;
    color: #fff !important;
}

.badge-success {
    background: linear-gradient(135deg, rgba(0, 100, 0, 0.3), rgba(0, 100, 0, 0.1));
    color: #006400;
    border: 1px solid #006400;
}

.badge-failed {
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.3), rgba(255, 0, 128, 0.1));
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.badge-cancelled {
    background: linear-gradient(135deg, rgba(128, 128, 128, 0.3), rgba(128, 128, 128, 0.1));
    color: #a0a0a0;
    border: 1px solid #a0a0a0;
}

/* Cards de clases y reservas */

.reservations-section {
    background: #ffffff;
    background-color: #ffffff;
    border: 2px solid rgba(255, 0, 110, 0.2);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    color: #000;
}

.reservations-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid rgba(255, 0, 110, 0.1);
}

/* Títulos de sección con color sólido rosa neón */
.section-title {
    margin: 0;
    padding: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: #ff006e;
}

/* Switch toggle personalizado */
.reservations-section .form-check-input {
    cursor: pointer;
}

.reservations-section .form-check-label {
    cursor: pointer;
    color: #000;
    font-weight: 500;
}

/* Controles de paginación */
#pagination-controls {
    margin-top: 20px;
    padding: 15px;
}

#pagination-controls .btn-neon {
    min-width: 100px;
}

#pagination-controls .btn-neon:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#pageInfo {
    min-width: 120px;
    text-align: center;
}

/* ========================================
   CONTENEDOR DE SECCIÓN DE CLASES
   ======================================== */

.classes-section {
    background: #ffffff;
    background-color: #ffffff;
    border: 2px solid rgba(255, 0, 110, 0.2);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    color: #000;
}

.classes-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid rgba(255, 0, 110, 0.1);
}

/* ========================================
   SISTEMA DE ACORDEONES POR FECHA
   ======================================== */

#classes-accordion {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.date-accordion-item {
    border: 2px solid rgba(255, 0, 110, 0.15);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    transition: all 0.3s ease;
}

.date-accordion-item:hover {
    border-color: var(--neon-pink);
    box-shadow: 0 4px 16px rgba(255, 0, 110, 0.15);
}

.date-accordion-header {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.05), rgba(0, 245, 255, 0.03));
    border-bottom: 1px solid rgba(255, 0, 110, 0.1);
    transition: all 0.3s ease;
}

.date-accordion-header.active {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.1), rgba(0, 245, 255, 0.05));
}

.date-toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: #000;
    font-weight: 600;
    transition: all 0.2s ease;
}

.date-toggle:hover {
    background: rgba(255, 0, 110, 0.05);
}

.date-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.day-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: #000;
}

.date-number {
    font-size: 0.95rem;
    color: #666;
    font-weight: 500;
}

.class-count {
    font-size: 0.85rem;
    color: #999;
    background: rgba(255, 0, 110, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
}

.toggle-icon {
    font-size: 1.2rem;
    color: var(--neon-pink);
    transition: transform 0.3s ease;
}

.date-accordion-header.active .toggle-icon {
    transform: rotate(180deg);
}

.date-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.date-accordion-content.show {
    max-height: 5000px;
}

/* ========================================
   TARJETAS DE CLASES
   ======================================== */

.class-card {
    background: 
        linear-gradient(135deg, rgba(255, 0, 110, 0.08) 0%, rgba(181, 55, 242, 0.06) 100%),
        linear-gradient(135deg, #1a1f3a 0%, #0f1429 100%) !important;
    border-radius: 12px;
    border: 1px solid rgba(255, 0, 110, 0.3);
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.class-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-cyan));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.class-card:hover {
    border-color: var(--neon-pink);
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 25px rgba(0, 245, 255, 0.2), 0 0 20px rgba(255, 0, 110, 0.15);
}

.class-card:hover::before {
    opacity: 1;
}

/* Forzar padding en .card-body dentro de .class-card */
.class-card .card-body {
    padding: 1rem !important;
}

.class-card .card-title {
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    font-weight: 700;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.class-card .card-text {
    color: rgba(255, 255, 255, 0.9);
}

.class-card .card-text.mb-2 {
    color: rgba(255, 255, 255, 0.9);
}

.class-card .card-text.mb-2 i {
    color: var(--neon-cyan);
}

.class-card .text-muted {
    color: rgba(255, 255, 255, 0.7) !important;
}

.class-card .small {
    color: rgba(255, 255, 255, 0.7);
}

/* Barra de ocupación */
.class-card .progress {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.class-card .progress-bar-occupation {
    background: linear-gradient(90deg, #00ff00 0%, #ffa500 50%, #ff006e 100%);
    background-size: 100% 100%;
    transition: width 0.3s ease;
}

/* Iconos */
.class-card i.bi-people {
    color: var(--neon-cyan) !important;
}

.class-card i.bi-person {
    color: var(--neon-pink);
}

.class-card i.bi-geo-alt {
    color: var(--neon-purple);
}

/* Responsive */
@media (max-width: 768px) {
    .class-card {
        margin-bottom: 1rem;
    }
    
    .class-card .card-title {
        font-size: 1rem;
    }
}

/* ========================================
   SISTEMA DE TARJETAS GYMTONIC - INDEPENDIENTE
   ======================================== */

/* Contenedor de tarjetas */
#reservations-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Tarjeta base - Sistema completamente personalizado */
.gymtonic-card {
    background: #ffffff;
    background-color: #ffffff;
    color: #000;
    border-radius: 12px;
    padding: 20px;
    border: 2px solid rgba(255, 0, 110, 0.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.gymtonic-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--neon-pink), var(--neon-cyan));
    opacity: 0;
    transition: opacity 0.3s;
}

.gymtonic-card:hover {
    box-shadow: 0 8px 24px rgba(255, 0, 110, 0.2);
    border-color: var(--neon-cyan);
    background-color: rgba(255, 255, 255, 0.05);
}

.gymtonic-card:hover::before {
    opacity: 1;
}

/* Estados de reserva */
.gymtonic-card.status-pending::before {
    background: var(--warning-color);
}

.gymtonic-card.status-success::before {
    background: var(--success-color);
}

.gymtonic-card.status-failed::before {
    background: var(--danger-color);
}

.gymtonic-card.status-cancelled {
    opacity: 0.6;
}

.gymtonic-card.status-cancelled::before {
    background: #808080;
}

/* Layout interno de la tarjeta */
.reservation-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    color: #000;
}

.reservation-main {
    flex: 1;
    min-width: 0;
    color: #000;
}

.reservation-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.reservation-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.info-line {
    margin: 0;
    padding: 0;
    color: #000;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-line strong {
    color: #000;
    font-weight: 600;
}

.info-line i {
    color: var(--neon-pink);
    font-size: 1.1rem;
}

.cancelled-info {
    color: #666 !important;
}

.cancelled-info strong {
    color: #666 !important;
}

.error-info {
    color: var(--danger-color) !important;
    font-weight: 500;
}

.error-info strong {
    color: var(--danger-color) !important;
}

/* Badge de clase */
.class-badge {
    display: inline-block;
    background: linear-gradient(45deg, #ff006e, #ff3385);
    color: #000;
    font-weight: bold;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: 8px;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(255, 0, 110, 0.3);
}

/* Iconos de estado */
.status-icon {
    font-size: 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.status-icon.pending {
    color: var(--warning-color);
}

.status-icon.success {
    color: #006400;
}

.status-icon.failed {
    color: var(--danger-color);
}

/* Acciones */
.reservation-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
}

/* Forzar texto negro en toda la tarjeta */
.gymtonic-card,
.gymtonic-card *:not(.btn):not(.badge):not(i) {
    color: #000 !important;
}

.gymtonic-card .cancelled-info,
.gymtonic-card .cancelled-info * {
    color: #666 !important;
}

.gymtonic-card .error-info,
.gymtonic-card .error-info * {
    color: var(--danger-color) !important;
}

.log-item {
    font-size: 0.9rem;
    padding: 12px;
    border-left: 4px solid transparent;
    border-radius: 6px;
    background-color: rgba(0, 0, 0, 0.2);
    margin-bottom: 8px;
    color: #ccc;
}

.log-item.success {
    border-left-color: var(--success-color);
    color: var(--success-color);
}

.log-item.error {
    border-left-color: var(--danger-color);
    color: var(--danger-color);
}

.log-item.info {
    border-left-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

.log-item.warning {
    border-left-color: var(--warning-color);
    color: var(--warning-color);
}

.nav-tabs {
    border-bottom: 2px solid var(--neon-pink);
}

.nav-tabs .nav-link {
    color: rgba(255, 255, 255, 0.7);
    border: none;
    transition: all 0.3s ease;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    position: relative;
}

.nav-tabs .nav-link i {
    font-size: 1.1rem;
    margin-right: 0.4rem;
}

.nav-tabs .nav-link:hover {
    color: var(--neon-cyan);
    transform: translateY(-2px);
}

.nav-tabs .nav-link:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan);
}

.nav-tabs .nav-link.active {
    color: var(--neon-pink);
    background-color: transparent;
    font-weight: 600;
}

.nav-tabs .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--neon-pink);
    box-shadow: 0 0 15px var(--neon-pink);
    animation: pulse-border 2s ease-in-out infinite;
}

@keyframes pulse-border {
    0%, 100% {
        box-shadow: 0 0 15px var(--neon-pink);
    }
    50% {
        box-shadow: 0 0 25px var(--neon-pink);
    }
}

.form-label {
    color: var(--neon-cyan);
    font-weight: 500;
}

.form-control {
    background-color: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(0, 245, 255, 0.3) !important;
    color: #fff !important;
    border-radius: 6px;
    transition: all 0.2s;
}

.form-control:focus {
    background-color: rgba(255, 255, 255, 0.08) !important;
    border-color: var(--neon-pink) !important;
    box-shadow: 0 0 15px rgba(255, 0, 110, 0.2);
    color: #fff !important;
}

.btn-primary {
    background-color: var(--neon-pink);
    border-color: var(--neon-pink);
    box-shadow: 0 0 20px rgba(255, 0, 110, 0.3);
}

.btn-primary:hover {
    background-color: #ff3385;
    border-color: #ff3385;
    box-shadow: 0 0 30px rgba(255, 0, 110, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
    color: #fff !important;
    border-radius: 50px;
    padding: 8px 20px;
    box-shadow: 0 0 20px rgba(108, 117, 125, 0.3);
}

.btn-secondary:hover {
    background-color: #5a6268;
    border-color: #545b62;
    box-shadow: 0 0 30px rgba(108, 117, 125, 0.5);
    color: #fff !important;
}

.btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
    color: #fff !important;
    border-radius: 50px;
    padding: 8px 20px;
    box-shadow: 0 0 20px rgba(220, 53, 69, 0.3);
}

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
    box-shadow: 0 0 30px rgba(220, 53, 69, 0.5);
    color: #fff !important;
}

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    color: #000 !important;
    border-radius: 50px;
    padding: 8px 20px;
    box-shadow: 0 0 20px rgba(255, 165, 0, 0.3);
}

.btn-warning:hover {
    background-color: #ff8800;
    box-shadow: 0 0 30px rgba(255, 165, 0, 0.5);
    border-color: var(--warning-color);
    color: #000 !important;
}

.alert {
    border: 1px solid;
    border-radius: 8px;
}

.alert-danger {
    background-color: rgba(255, 0, 128, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-info {
    background-color: rgba(0, 245, 255, 0.1);
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

.modal-content {
    background: linear-gradient(135deg, #1a1f3a 0%, #0f1a2e 100%);
    border: 1px solid var(--neon-pink);
    color: #fff;
}

.modal-header {
    border-bottom: 2px solid var(--neon-pink);
    background: rgba(255, 0, 110, 0.05);
}

.modal-header.bg-warning {
    background: linear-gradient(135deg, rgba(255, 165, 0, 0.3), rgba(255, 165, 0, 0.2)) !important;
    border-bottom-color: var(--warning-color);
    color: #000 !important;
}

.modal-header.bg-success {
    background: linear-gradient(135deg, rgba(0, 200, 83, 0.3), rgba(0, 200, 83, 0.2)) !important;
    border-bottom-color: #00c853;
}

.modal-header.bg-danger {
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.3), rgba(255, 0, 128, 0.2)) !important;
    border-bottom-color: var(--danger-color);
}

/* Estados de la modal de anulación */
#cancelProcessingState {
    min-height: 150px;
}

#cancelResultState {
    min-height: 150px;
}

#cancelResultState i {
    animation: scaleIn 0.3s ease-out;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-footer {
    border-top: 1px solid rgba(255, 0, 110, 0.2);
}

.btn-close {
    filter: brightness(1.5);
}

.btn-close-white {
    filter: invert(1) brightness(1.5) !important;
}

.container-fluid {
    padding: 20px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container-fluid {
        padding: 4px;
    }
    
    .container-fluid .row {
        margin-left: -4px;
        margin-right: -4px;
    }
    
    .container-fluid .row > [class*='col-'] {
        padding-left: 4px;
        padding-right: 4px;
    }
    
    .mb-4 {
        margin-bottom: 0.75rem !important;
    }
    
    .mb-3 {
        margin-bottom: 0.5rem !important;
    }
    
    .mt-3, .my-3 {
        margin-top: 0.5rem !important;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .gymtonic-logo {
        font-size: 2.5rem;
    }
    
    /* Padding reducido deshabilitado - se controla desde HTML con clases Bootstrap
    .card-body {
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
    */
    
    .card-header {
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
    
    [class*='col-'] {
        padding-left: 4px;
        padding-right: 4px;
    }
    
    .list-group-item {
        padding: 0.5rem;
    }
    
    .stat-card .card-body {
        padding: 0.5rem !important;
    }
    
    .stat-card .card-subtitle {
        font-size: 0.7rem;
    }
    
    .stat-card .card-title {
        font-size: 1.5rem;
    }
    
    .stat-icon {
        font-size: 1.5rem !important;
    }
    
    .table {
        font-size: 0.85rem;
    }
    
    .btn-sm {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
}

/* Loading spinner */
.spinner-border {
    width: 3rem;
    height: 3rem;
    color: var(--neon-pink) !important;
}

.spinner-border.text-neon {
    border-color: var(--neon-cyan);
    border-right-color: transparent;
}

/* Toast notifications */
.toast {
    min-width: 300px;
    background: linear-gradient(135deg, #1a1f3a 0%, #0f1a2e 100%) !important;
    border: 1px solid var(--neon-pink) !important;
    color: #fff !important;
    box-shadow: 0 0 30px rgba(255, 0, 110, 0.3);
}

.toast-header {
    background: rgba(255, 0, 110, 0.1);
    border-bottom: 1px solid var(--neon-pink);
    color: var(--neon-cyan) !important;
}

.toast-body {
    color: #fff !important;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(255, 0, 110, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(255, 0, 110, 0.5);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

.glow {
    animation: glow 2s ease-in-out infinite;
}

/* Status icons */
.status-icon {
    font-size: 1.5rem;
}

.status-icon.success {
    color: var(--success-color);
    text-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
}

.status-icon.pending {
    color: var(--warning-color);
    text-shadow: 0 0 10px rgba(255, 255, 0, 0.5);
}

.status-icon.failed {
    color: var(--danger-color);
    text-shadow: 0 0 10px rgba(255, 0, 128, 0.5);
}

/* Empty states */
.empty-state {
    padding: 60px 20px;
    text-align: center;
}

.empty-state i {
    font-size: 4rem;
    color: rgba(0, 245, 255, 0.3);
}

.empty-state p {
    margin-top: 20px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.1rem;
}

/* ==========================================
   TOASTS - Estilos personalizados
   ========================================== */

/* Container de toasts */
.toast-container {
    z-index: 9999 !important;
}

/* Toast base - fondo blanco sobre tema oscuro */
#notificationToast {
    background-color: #ffffff !important;
    border: none !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4) !important;
    min-width: 350px !important;
    overflow: hidden !important;
}

/* Contenedor flex del toast */
#notificationToast .d-flex {
    background-color: #ffffff !important;
}

/* Cuerpo del toast */
#notificationToast .toast-body {
    background-color: #ffffff !important;
    color: #000000 !important;
    padding: 16px !important;
}

/* Icono del toast */
#notificationToast #toastIcon {
    color: #000000 !important;
    font-size: 24px !important;
}

/* Mensaje del toast */
#notificationToast #toastMessage {
    color: #000000 !important;
    font-weight: 500 !important;
    font-size: 14px !important;
    line-height: 1.4 !important;
}

/* Botón de cerrar */
#notificationToast .btn-close {
    background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/1em auto no-repeat !important;
    opacity: 1 !important;
    padding: 0 !important;
    width: 1em !important;
    height: 1em !important;
}

#notificationToast .btn-close:hover {
    opacity: 0.7 !important;
}

/* Animación de entrada */
@keyframes toastSlideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

#notificationToast.show {
    animation: toastSlideIn 0.3s ease-out !important;
}
}

/* ========================================
   RESERVAS - NUEVO DISEÑO
   ======================================== */

/* Secciones colapsables */
.reservation-section {
    margin-bottom: 2rem;
}

.reservation-section-title {
    color: #ffffff;
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.15) 0%, rgba(0, 245, 255, 0.1) 100%);
    border-radius: 8px;
    border-left: 4px solid var(--neon-pink);
    margin-bottom: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.reservation-section-title:hover {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.25) 0%, rgba(0, 245, 255, 0.15) 100%);
    border-left-color: var(--neon-cyan);
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.section-collapse-icon {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.reservation-section-title[aria-expanded="true"] .section-collapse-icon {
    transform: rotate(180deg);
}

/* Cards de Reserva */
.reservation-card {
    background: 
        linear-gradient(135deg, rgba(255, 0, 110, 0.08) 0%, rgba(181, 55, 242, 0.06) 100%),
        linear-gradient(135deg, #1a1f3a 0%, #0f1429 100%) !important;
    border-radius: 12px;
    border: 1px solid rgba(255, 0, 110, 0.3);
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.reservation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-cyan));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.reservation-card:hover {
    border-color: var(--neon-pink);
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 25px rgba(0, 245, 255, 0.2), 0 0 20px rgba(255, 0, 110, 0.15);
}

.reservation-card:hover::before {
    opacity: 1;
}

/* Estados de card */
.reservation-card-success {
    border-color: rgba(0, 255, 0, 0.3);
}

.reservation-card-success:hover {
    box-shadow: 0 8px 25px rgba(0, 255, 0, 0.15), 0 0 20px rgba(0, 255, 0, 0.1);
}

.reservation-card-pending {
    border-color: rgba(255, 165, 0, 0.3);
}

.reservation-card-pending:hover {
    box-shadow: 0 8px 25px rgba(255, 165, 0, 0.15), 0 0 20px rgba(255, 165, 0, 0.1);
}

.reservation-card-failed,
.reservation-card-cancelled {
    border-color: rgba(150, 150, 150, 0.3);
    opacity: 0.8;
}

/* Header de la card */
.reservation-card-header {
    padding: 1rem 1rem 0.75rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.reservation-class-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.reservation-status {
    font-size: 0.85rem;
    padding: 0.35rem 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

/* Body de la card */
.reservation-card-body {
    padding: 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.reservation-datetime {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 0.75rem;
    background: transparent;
    border-radius: 8px;
    border: 1px solid rgba(255, 0, 110, 0.1);
}

.reservation-date,
.reservation-time {
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reservation-date i,
.reservation-time i {
    color: var(--neon-cyan);
    font-size: 1.1rem;
}

.reservation-time {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--neon-cyan);
}

.reservation-meta {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.reservation-info-item {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.reservation-info-item i {
    color: var(--neon-pink);
    font-size: 0.9rem;
}

.reservation-error {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    border-radius: 6px;
    padding: 0.5rem;
    font-size: 0.8rem;
    color: #ff6b6b;
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
}

.reservation-error i {
    margin-top: 0.1rem;
    flex-shrink: 0;
}

/* Footer de la card */
.reservation-card-footer {
    padding: 0 1rem 1rem 1rem;
}

.reservation-card-footer .btn {
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
}

.reservation-card-footer .btn-outline-warning {
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.reservation-card-footer .btn-outline-warning:hover {
    background: var(--warning-color);
    color: #000;
    box-shadow: 0 0 15px rgba(255, 165, 0, 0.5);
}

.reservation-card-footer .btn-outline-danger {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.reservation-card-footer .btn-outline-danger:hover {
    background: var(--danger-color);
    color: #fff;
    box-shadow: 0 0 15px rgba(255, 0, 128, 0.5);
}

.reservation-card-footer .btn-outline-secondary {
    border-color: rgba(150, 150, 150, 0.5);
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive para reservas */
@media (max-width: 768px) {
    .reservation-card {
        margin-bottom: 1rem;
    }
    
    .reservation-section-title {
        font-size: 0.95rem;
        padding: 0.6rem 0.8rem;
    }
    
    .reservation-class-name {
        font-size: 1.1rem;
    }
}