/* Estilos generales */
:root {
    --neon-orange: #ff5e00;
    --neon-purple: #bc13fe;
    --neon-green: #00ff00;
    --neon-blue: #00ffff;
    --neon-pink: #ff00ff;
    --neon-yellow: #ffff00;
    --dark-bg: #0f0c29;
    --medium-bg: #1a1640;
    --light-bg: #24243e;
    --success-bg: rgba(0, 255, 0, 0.1);
    --danger-bg: rgba(255, 0, 0, 0.1);
    --warning-bg: rgba(255, 255, 0, 0.1);
    --info-bg: rgba(0, 255, 255, 0.1);
}

body {
    background: linear-gradient(135deg, var(--dark-bg), var(--light-bg));
    color: #ffffff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    font-weight: 500;
}

/* Fondo con imagen */
.background-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -2;
}

/* Partículas animadas */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--neon-orange);
    opacity: 0.3;
    animation: float 15s infinite linear;
}

.particle:nth-child(1) {
    width: 20px;
    height: 20px;
    top: 10%;
    left: 20%;
    animation-delay: 0s;
    background: var(--neon-purple);
}

.particle:nth-child(2) {
    width: 30px;
    height: 30px;
    top: 60%;
    left: 80%;
    animation-delay: -2s;
}

.particle:nth-child(3) {
    width: 25px;
    height: 25px;
    top: 80%;
    left: 10%;
    animation-delay: -4s;
    background: var(--neon-purple);
}

.particle:nth-child(4) {
    width: 15px;
    height: 15px;
    top: 30%;
    left: 65%;
    animation-delay: -6s;
}

.particle:nth-child(5) {
    width: 35px;
    height: 35px;
    top: 15%;
    left: 50%;
    animation-delay: -8s;
    background: var(--neon-purple);
}

.particle:nth-child(6) {
    width: 20px;
    height: 20px;
    top: 70%;
    left: 30%;
    animation-delay: -10s;
}

.particle:nth-child(7) {
    width: 25px;
    height: 25px;
    top: 40%;
    left: 85%;
    animation-delay: -12s;
    background: var(--neon-purple);
}

.particle:nth-child(8) {
    width: 30px;
    height: 30px;
    top: 85%;
    left: 70%;
    animation-delay: -14s;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-20px) rotate(90deg);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-40px) rotate(180deg);
        opacity: 0.7;
    }
    75% {
        transform: translateY(-20px) rotate(270deg);
        opacity: 0.5;
    }
    100% {
        transform: translateY(0) rotate(360deg);
        opacity: 0.3;
    }
}

/* Efectos de texto */
.neon-text {
    color: #ffffff;
    text-shadow: 0 0 3px #fff, 0 0 5px #fff, 0 0 7px var(--neon-orange), 0 0 10px var(--neon-orange);
    font-weight: 600;
}

.neon-text-purple {
    color: #ffffff;
    text-shadow: 0 0 3px #fff, 0 0 5px #fff, 0 0 7px var(--neon-purple), 0 0 10px var(--neon-purple);
    font-weight: 600;
}

.neon-text-green {
    color: #ffffff;
    text-shadow: 0 0 3px #fff, 0 0 5px #fff, 0 0 7px var(--neon-green), 0 0 10px var(--neon-green);
    font-weight: 600;
}

.neon-text-blue {
    color: #ffffff;
    text-shadow: 0 0 3px #fff, 0 0 5px #fff, 0 0 7px var(--neon-blue), 0 0 10px var(--neon-blue);
    font-weight: 600;
}

/* Barra de navegación */
.neon-navbar {
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--neon-orange);
    box-shadow: 0 0 20px var(--neon-orange);
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    margin-right: 10px;
    border: 2px solid var(--neon-orange);
    box-shadow: 0 0 15px var(--neon-orange);
    object-fit: cover;
}

.navbar-nav .nav-link {
    color: #ffffff !important;
    transition: all 0.3s;
    position: relative;
    margin: 0 5px;
    border-radius: 5px;
    font-weight: 600;
}

.navbar-nav .nav-link:hover, 
.navbar-nav .nav-link.active {
    color: #ffcc00 !important;
    text-shadow: 0 0 5px #fff, 0 0 10px var(--neon-orange);
    background: rgba(255, 94, 0, 0.3);
    transform: translateY(-2px);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-orange);
    transition: width 0.3s;
    box-shadow: 0 0 5px var(--neon-orange);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 100%;
}

/* Contenido principal */
.main-content {
    position: relative;
    z-index: 1;
    padding: 20px 0;
}

/* Sistema de pestañas */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s;
}

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

/* Tarjetas */
.neon-card {
    background: rgba(10, 8, 35, 0.95);
    backdrop-filter: blur(10px);
    border: 2px solid var(--neon-orange);
    box-shadow: 0 0 20px rgba(255, 94, 0, 0.4);
    border-radius: 15px;
    transition: all 0.3s;
    overflow: hidden;
    margin-bottom: 20px;
}

.neon-card:hover {
    box-shadow: 0 0 30px rgba(255, 94, 0, 0.6);
    transform: translateY(-5px);
    border-color: var(--neon-purple);
}

.neon-card-inner {
    background: rgba(15, 12, 50, 0.95);
    border: 2px solid var(--neon-purple);
    box-shadow: 0 0 15px rgba(188, 19, 254, 0.4);
    border-radius: 12px;
    margin-bottom: 20px;
}

.neon-card-inner:hover {
    box-shadow: 0 0 25px rgba(188, 19, 254, 0.6);
    transform: translateY(-3px);
}

.card-header {
    background: linear-gradient(135deg, rgba(255, 94, 0, 0.2), rgba(188, 19, 254, 0.2));
    border-bottom: 2px solid var(--neon-orange);
    padding: 15px 20px;
}

.card-body {
    padding: 20px;
    color: #f0f0f0;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--neon-orange);
    text-shadow: 0 0 10px var(--neon-orange);
    transition: all 0.3s;
}

.neon-card:hover .card-icon {
    color: var(--neon-purple);
    text-shadow: 0 0 15px var(--neon-purple);
}

/* Inputs */
.neon-input {
    background: rgba(15, 12, 41, 0.9);
    border: 2px solid var(--neon-orange);
    color: #ffffff;
    box-shadow: 0 0 10px rgba(255, 94, 0, 0.3);
    border-radius: 8px;
    transition: all 0.3s;
    padding: 10px 15px;
    font-weight: 500;
}

.neon-input:focus {
    background: rgba(15, 12, 41, 0.95);
    border-color: var(--neon-purple);
    box-shadow: 0 0 15px rgba(188, 19, 254, 0.5);
    color: #ffffff;
    transform: translateY(-2px);
    outline: none;
}

.form-label {
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 8px;
}

/* Botones */
.neon-btn {
    background: linear-gradient(45deg, var(--neon-orange), var(--neon-purple));
    border: none;
    color: #ffffff;
    box-shadow: 0 0 15px rgba(255, 94, 0, 0.4);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    font-weight: 700;
    border-radius: 8px;
    padding: 10px 20px;
    cursor: pointer;
}

.neon-btn:hover {
    background: linear-gradient(45deg, var(--neon-purple), var(--neon-orange));
    color: #ffffff;
    box-shadow: 0 0 20px rgba(255, 94, 0, 0.6);
    transform: translateY(-2px);
}

.neon-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.neon-btn:hover::before {
    left: 100%;
}

.neon-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.neon-btn:disabled:hover {
    background: linear-gradient(45deg, var(--neon-orange), var(--neon-purple));
    box-shadow: 0 0 15px rgba(255, 94, 0, 0.4);
    transform: none;
}

/* Tablas */
.neon-table {
    border: 2px solid rgba(255, 94, 0, 0.4);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 15px rgba(255, 94, 0, 0.3);
    margin-bottom: 0;
}

.neon-table thead th {
    background: linear-gradient(135deg, rgba(255, 94, 0, 0.3), rgba(188, 19, 254, 0.3));
    border-bottom: 2px solid var(--neon-orange);
    color: #ffffff;
    font-weight: 700;
    padding: 15px;
    text-align: center;
}

.neon-table tbody tr {
    transition: all 0.3s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.neon-table tbody tr:hover {
    background: rgba(255, 94, 0, 0.2);
    transform: translateX(5px);
}

.neon-table tbody td {
    padding: 12px 15px;
    vertical-align: middle;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: #f0f0f0;
    font-weight: 500;
}

.neon-table tfoot th {
    background: linear-gradient(135deg, rgba(255, 94, 0, 0.4), rgba(188, 19, 254, 0.4));
    border-top: 2px solid var(--neon-orange);
    font-weight: bold;
    padding: 15px;
    color: #ffffff;
}

/* Tabla de seguimiento */
.tabla-seguimiento {
    border: 2px solid rgba(0, 255, 255, 0.4);
}

.tabla-seguimiento thead th {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.3), rgba(0, 150, 255, 0.3));
    border-bottom: 2px solid var(--neon-blue);
    color: #ffffff;
    font-weight: 700;
}

/* Modal */
.neon-modal {
    background: rgba(15, 12, 41, 0.95);
    border: 2px solid var(--neon-orange);
    box-shadow: 0 0 30px rgba(255, 94, 0, 0.6);
    border-radius: 15px;
}

.modal-header {
    border-bottom: 2px solid var(--neon-orange);
    background: linear-gradient(135deg, rgba(255, 94, 0, 0.2), rgba(188, 19, 254, 0.2));
}

.modal-title {
    color: #ffffff;
    font-weight: 700;
}

.btn-close {
    filter: invert(1);
    opacity: 0.8;
}

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

/* Tabla de pagos */
.tabla-pagos {
    font-size: 0.75rem;
}

.tabla-pagos th {
    background: linear-gradient(135deg, rgba(255, 94, 0, 0.3), rgba(188, 19, 254, 0.3));
    position: sticky;
    top: 0;
    white-space: nowrap;
    text-align: center;
    padding: 10px 8px;
    color: #ffffff;
    font-weight: 700;
}

.tabla-pagos td {
    vertical-align: middle;
    text-align: center;
    padding: 8px 5px;
    color: #f0f0f0;
    font-weight: 500;
}

/* Estados de pago */
.estado-pagado {
    background: var(--success-bg);
    color: #00ff00;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid #00ff00;
    text-shadow: 0 0 5px #00ff00;
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.3);
    display: inline-block;
    min-width: 80px;
}

.estado-deuda {
    background: var(--danger-bg);
    color: #ff4444;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid #ff4444;
    text-shadow: 0 0 5px rgba(255, 68, 68, 0.5);
    box-shadow: 0 0 10px rgba(255, 68, 68, 0.3);
    display: inline-block;
    min-width: 80px;
}

.estado-al-dia {
    background: var(--success-bg);
    color: #00ff00;
    font-weight: 700;
    padding: 8px 12px;
    border-radius: 8px;
    border: 2px solid #00ff00;
    text-shadow: 0 0 8px #00ff00;
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.4);
    display: inline-block;
    min-width: 100px;
}

.estado-con-deuda {
    background: var(--danger-bg);
    color: #ff4444;
    font-weight: 700;
    padding: 8px 12px;
    border-radius: 8px;
    border: 2px solid #ff4444;
    text-shadow: 0 0 8px rgba(255, 68, 68, 0.5);
    box-shadow: 0 0 15px rgba(255, 68, 68, 0.4);
    display: inline-block;
    min-width: 100px;
}

/* Estados de pago parcial */
.estado-parcial {
    background: var(--warning-bg);
    color: #ffcc00;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid #ffcc00;
    text-shadow: 0 0 5px #ffcc00;
    box-shadow: 0 0 10px rgba(255, 204, 0, 0.3);
    display: inline-block;
    min-width: 80px;
}

/* Botones de acción */
.btn-recibo {
    background: linear-gradient(45deg, #28a745, #20c997);
    border: none;
    color: white;
    padding: 6px 12px;
    font-size: 0.75rem;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(40, 167, 69, 0.4);
    transition: all 0.3s;
    cursor: pointer;
    margin: 2px;
    font-weight: 600;
}

.btn-recibo:hover {
    background: linear-gradient(45deg, #20c997, #28a745);
    color: white;
    box-shadow: 0 0 15px rgba(40, 167, 69, 0.6);
    transform: translateY(-2px);
}

.btn-pago {
    background: linear-gradient(45deg, #007bff, #0056b3);
    border: none;
    color: white;
    padding: 6px 12px;
    font-size: 0.75rem;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.4);
    transition: all 0.3s;
    cursor: pointer;
    margin: 2px;
    font-weight: 600;
}

.btn-pago:hover {
    background: linear-gradient(45deg, #0056b3, #007bff);
    color: white;
    box-shadow: 0 0 15px rgba(0, 123, 255, 0.6);
    transform: translateY(-2px);
}

.btn-editar {
    background: linear-gradient(45deg, #ffc107, #fd7e14);
    border: none;
    color: white;
    padding: 6px 12px;
    font-size: 0.75rem;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(255, 193, 7, 0.4);
    transition: all 0.3s;
    cursor: pointer;
    margin: 2px;
    font-weight: 600;
}

.btn-editar:hover {
    background: linear-gradient(45deg, #fd7e14, #ffc107);
    color: white;
    box-shadow: 0 0 15px rgba(255, 193, 7, 0.6);
    transform: translateY(-2px);
}

/* Estilos para casilleros MEJORADOS */
.casillero {
    background: rgba(15, 12, 41, 0.9);
    border: 2px solid var(--neon-blue);
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    height: 100%;
    position: relative;
}

.casillero:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.6);
    border-color: var(--neon-green);
}

.casillero.pagado {
    background: var(--success-bg);
    border-color: var(--neon-green);
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.4);
}

.casillero.debe {
    background: var(--danger-bg);
    border-color: #ff4444;
    box-shadow: 0 0 15px rgba(255, 68, 68, 0.4);
}

.casillero .numero {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--neon-blue);
    margin-bottom: 5px;
}

.casillero.pagado .numero {
    color: var(--neon-green);
}

.casillero.debe .numero {
    color: #ff4444;
}

.casillero .estudiante {
    font-size: 0.8rem;
    color: #ccc;
    margin-bottom: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}

.casillero .estado {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    display: inline-block;
}

.casillero.pagado .estado {
    background: var(--success-bg);
    color: var(--neon-green);
}

.casillero.debe .estado {
    background: var(--danger-bg);
    color: #ff4444;
}

/* Calendario de meses pagados */
.calendario-meses {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 3px;
    margin-top: 5px;
}

.mes-calendario {
    width: 20px;
    height: 20px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    cursor: help;
}

.mes-pagado {
    background-color: var(--neon-green);
    color: #000;
    box-shadow: 0 0 5px var(--neon-green);
}

.mes-no-pagado {
    background-color: #ff4444;
    color: white;
    box-shadow: 0 0 5px #ff4444;
}

/* Calendario en modal */
.calendario-casillero {
    background: rgba(15, 12, 41, 0.9);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid var(--neon-blue);
}

.calendario-casillero .mes-item {
    display: inline-block;
    width: 40px;
    height: 40px;
    margin: 2px;
    border-radius: 5px;
    text-align: center;
    line-height: 40px;
    font-weight: 700;
    cursor: default;
}

.calendario-casillero .mes-pagado {
    background: linear-gradient(135deg, var(--neon-green), #00cc00);
    color: #000;
    box-shadow: 0 0 10px var(--neon-green);
}

.calendario-casillero .mes-no-pagado {
    background: linear-gradient(135deg, #ff4444, #cc0000);
    color: white;
    box-shadow: 0 0 10px #ff4444;
}

/* Modal de Login */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.login-modal {
    background: linear-gradient(135deg, rgba(15, 12, 41, 0.95), rgba(26, 22, 64, 0.95));
    border: 2px solid var(--neon-orange);
    border-radius: 15px;
    padding: 40px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 0 40px rgba(255, 94, 0, 0.6);
    animation: pulse 2s infinite;
}

.login-title {
    text-align: center;
    margin-bottom: 30px;
    color: var(--neon-orange);
    text-shadow: 0 0 10px var(--neon-orange);
    font-size: 1.8rem;
    font-weight: 700;
}

.login-btn {
    width: 100%;
    margin-top: 20px;
    padding: 12px;
    font-size: 1.1rem;
    font-weight: 700;
}

.viewer-access {
    margin-top: 20px;
    text-align: center;
    color: var(--neon-blue);
}

.viewer-access a {
    color: var(--neon-blue);
    text-decoration: none;
    cursor: pointer;
    font-weight: 700;
}

.viewer-access a:hover {
    text-decoration: underline;
    text-shadow: 0 0 5px var(--neon-blue);
}

/* Contenedores para gráficos */
canvas {
    max-height: 300px;
    width: 100% !important;
}

/* Mensajes de alerta */
.alert {
    border-radius: 10px;
    border: 2px solid;
    background: rgba(15, 12, 41, 0.9);
    backdrop-filter: blur(10px);
    font-weight: 600;
}

.alert-success {
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.alert-danger {
    border-color: #ff4444;
    color: #ff4444;
}

.alert-info {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
}

/* Eventos mejorados */
.evento-card-mejorado {
    background: linear-gradient(135deg, rgba(255, 94, 0, 0.1), rgba(188, 19, 254, 0.1));
    border: 2px solid var(--neon-purple);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.evento-card-mejorado:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(188, 19, 254, 0.3);
}

.evento-card-mejorado::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(180deg, var(--neon-orange), var(--neon-purple));
}

.evento-titulo-mejorado {
    color: #ffcc00;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.evento-fecha-mejorada {
    color: var(--neon-blue);
    font-weight: 600;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.evento-descripcion-mejorada {
    color: #e0e0e0;
    line-height: 1.6;
    margin-bottom: 15px;
}

.evento-imagenes {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.evento-imagen {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 5px;
    border: 2px solid var(--neon-blue);
    cursor: pointer;
    transition: transform 0.3s;
}

.evento-imagen:hover {
    transform: scale(1.1);
}

/* Comprobantes */
.btn-comprobante {
    background: linear-gradient(45deg, var(--neon-blue), #0088cc);
    border: none;
    color: white;
    padding: 4px 8px;
    font-size: 0.7rem;
    border-radius: 4px;
    cursor: pointer;
    margin: 2px;
    font-weight: 600;
}

.btn-comprobante:hover {
    background: linear-gradient(45deg, #0088cc, var(--neon-blue));
    transform: translateY(-1px);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar-brand span {
        font-size: 1rem;
    }
    
    .card-icon {
        font-size: 2rem;
    }
    
    .logo-img {
        width: 35px;
        height: 35px;
    }
    
    .tabla-pagos {
        font-size: 0.65rem;
    }
    
    .tabla-pagos th,
    .tabla-pagos td {
        padding: 5px 3px;
    }
    
    .estado-pagado,
    .estado-deuda,
    .estado-parcial {
        font-size: 0.65rem;
        padding: 4px 6px;
        min-width: 70px;
    }
    
    .casillero {
        padding: 8px;
    }
    
    .casillero .numero {
        font-size: 1rem;
    }
    
    .casillero .estudiante {
        font-size: 0.7rem;
    }
    
    .calendario-meses {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .mes-calendario {
        width: 18px;
        height: 18px;
        font-size: 0.5rem;
    }
    
    .btn-recibo,
    .btn-pago,
    .btn-editar {
        padding: 4px 8px;
        font-size: 0.7rem;
        margin: 1px;
    }
    
    .evento-imagen {
        width: 80px;
        height: 80px;
    }
}

/* Animaciones */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 94, 0, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 94, 0, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 94, 0, 0);
    }
}

/* Estados para elementos deshabilitados */
input:disabled, 
select:disabled, 
textarea:disabled,
button:disabled {
    opacity: 0.5;
    cursor: not-allowed !important;
}

input:disabled:hover, 
select:disabled:hover, 
textarea:disabled:hover,
button:disabled:hover {
    transform: none !important;
    box-shadow: 0 0 10px rgba(255, 94, 0, 0.3) !important;
}

/* Scroll personalizado */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(15, 12, 41, 0.5);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, var(--neon-orange), var(--neon-purple));
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(255, 94, 0, 0.4);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, var(--neon-purple), var(--neon-orange));
    box-shadow: 0 0 15px rgba(188, 19, 254, 0.6);
}

/* Botón de ver historial */
.btn-historial {
    background: linear-gradient(45deg, var(--neon-purple), #800080);
    border: none;
    color: white;
    padding: 3px 6px;
    font-size: 0.6rem;
    border-radius: 3px;
    cursor: pointer;
    margin: 1px;
    font-weight: 600;
}

.btn-historial:hover {
    background: linear-gradient(45deg, #800080, var(--neon-purple));
    transform: translateY(-1px);
}

/* Resumen de cursos en seguimiento */
.resumen-curso {
    background: rgba(15, 12, 41, 0.9);
    border: 1px solid var(--neon-blue);
    border-radius: 8px;
    padding: 10px;
    margin: 5px;
    text-align: center;
    transition: all 0.3s;
}

.resumen-curso:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.4);
}

.resumen-curso h6 {
    color: #ffffff;
    font-weight: 700;
    margin-bottom: 5px;
}

.resumen-curso .numero {
    font-size: 1.5rem;
    font-weight: 700;
    color: #00ffff;
}

/* Texto destacado */
.text-success {
    color: #00ff00 !important;
    font-weight: 600;
}

.text-danger {
    color: #ff4444 !important;
    font-weight: 600;
}

.text-warning {
    color: #ffcc00 !important;
    font-weight: 600;
}

.text-info {
    color: #00ffff !important;
    font-weight: 600;
}

/* Tooltips */
.tooltip {
    font-weight: 600;
}

/* Clase para resaltar texto importante */
.text-highlight {
    color: #ffcc00;
    font-weight: 700;
    text-shadow: 0 0 5px rgba(255, 204, 0, 0.5);
}

/* Clase para texto con buen contraste */
.text-contrast {
    color: #ffffff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    font-weight: 600;
}

/* Mejorar visibilidad en selects */
.form-select option {
    background: rgba(15, 12, 41, 0.95);
    color: #ffffff;
    font-weight: 500;
}

/* Estilo para placeholders */
::placeholder {
    color: #aaaaaa !important;
    font-weight: 500;
}

/* Mejorar contraste en hovers de tabla */
.table-hover tbody tr:hover td {
    color: #ffffff !important;
    font-weight: 600;
}

/* Estilo para títulos de sección */
.section-title {
    color: #ffffff;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    border-bottom: 2px solid var(--neon-orange);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

/* Estilo para información importante */
.info-box {
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--neon-blue);
    border-radius: 8px;
    padding: 15px;
    margin: 10px 0;
    color: #e0e0e0;
    font-weight: 500;
}

.info-box strong {
    color: #ffcc00;
    font-weight: 700;
}

/* Estilo para montos importantes */
.monto-importante {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffcc00;
    text-shadow: 0 0 5px rgba(255, 204, 0, 0.5);
}

/* Estilo para etiquetas de estado */
.badge-estado {
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.8rem;
}

.badge-estado.al-dia {
    background: rgba(0, 255, 0, 0.2);
    color: #00ff00;
    border: 1px solid #00ff00;
}

.badge-estado.deuda {
    background: rgba(255, 68, 68, 0.2);
    color: #ff4444;
    border: 1px solid #ff4444;
}

.badge-estado.parcial {
    background: rgba(255, 204, 0, 0.2);
    color: #ffcc00;
    border: 1px solid #ffcc00;
}

/* Firma del creador */
.firma-creador {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-style: italic;
    font-size: 0.9rem;
}

/* Imagen del curso */
.curso-imagen {
    width: 80px;
    height: 80px;
    border-radius: 10px;
    object-fit: cover;
    margin: 0 auto 15px auto;
    display: block;
    border: 2px solid var(--neon-orange);
    box-shadow: 0 0 10px rgba(255, 94, 0, 0.5);
}

/* Contador de cobros */
.contador-cobros {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--neon-blue);
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.5);
}

/* Estilos para meses múltiples */
.meses-multiple {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.mes-checkbox {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
}

/* Estilos para editar casillero */
.meses-editar {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.mes-editar-item {
    width: 30px;
    height: 30px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.8rem;
}

.mes-editar-pagado {
    background: var(--neon-green);
    color: #000;
}

.mes-editar-no-pagado {
    background: #ff4444;
    color: white;
}

/* Botón eliminar estudiante */
.btn-eliminar-estudiante {
    background: linear-gradient(45deg, #dc3545, #c82333);
    border: none;
    color: white;
    padding: 4px 8px;
    font-size: 0.7rem;
    border-radius: 4px;
    cursor: pointer;
    margin: 2px;
    font-weight: 600;
}

.btn-eliminar-estudiante:hover {
    background: linear-gradient(45deg, #c82333, #dc3545);
    transform: translateY(-1px);
}

/* Mejoras para eventos */
.evento-card-mejorado .lugar {
    color: var(--neon-green);
    font-weight: 600;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.evento-card-mejorado .fotos-count {
    color: var(--neon-blue);
    font-weight: 600;
    margin-top: 10px;
}

/* Información del casillero en modal */
.info-casillero {
    background: rgba(15, 12, 41, 0.9);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid var(--neon-blue);
}

.info-casillero p {
    margin-bottom: 8px;
    color: #f0f0f0;
}

.info-casillero strong {
    color: var(--neon-blue);
}