body {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    color: #fff;
    background: #0A1F44; /* azul espacial oscuro */
    min-height: 200vh; /* permite scroll */
}

/* Estrellas pequeñas */
.stars-small {
    position: fixed;
    width: 2px;
    height: 2px;
    background: white;
    box-shadow: 50px 100px white, 150px 200px white, 300px 50px white, 400px 250px white, 600px 150px white, 800px 300px white, 1000px 100px white, 1200px 200px white, 1400px 400px white, 1600px 250px white; /* puedes añadir más */
    animation: fall 40s linear infinite;
}

/* Estrellas grandes */
.stars-big {
    position: fixed;
    width: 4px;
    height: 4px;
    background: white;
    box-shadow: 200px 300px white, 500px 100px white, 900px 400px white, 1300px 250px white, 1700px 150px white;
    animation: fall 60s linear infinite, twinkle 2s ease-in-out infinite alternate;
}

/* Animación de caída */
@keyframes fall {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(100vh);
    }
}

/* Parpadeo suave */
@keyframes twinkle {
    from {
        opacity: 0.6;
    }

    to {
        opacity: 1;
    }
}


/* Hero Section */
.hero-section {
    min-height: 90vh;
    background: linear-gradient(135deg, #e6f2ff, #4FB3FF);
    color: #0A1F44;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 1.2s ease;
}

.hero-content {
    max-width: 900px;
    padding: 2rem;
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: slideUp 1.2s ease;
}

.hero-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1.5s ease;
}

/* Íconos de servicios */
.services-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
}



.service-card {
    background: #4FB3FF; /* azul sólido corporativo */
    border-radius: 20px;
    width: 220px;
    height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* centra icono y título */
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}




    .service-card i {
        font-size: 3rem;
        margin-bottom: 0.5rem;
        color: #00CED1; /* turquesa eléctrico */
    }

    .service-card h3 {
        margin: 0;
        font-size: 1.2rem;
    }



/* Texto oculto inicialmente */
.service-info {
    position: absolute;
    bottom: -100%; /* escondido fuera del cuadro */
    left: 0;
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.8);
    transition: bottom 0.4s ease;
    font-size: 0.9rem;
}

/* Hover: sube el texto */
.service-card:hover .service-info {
    bottom: 0;
}

/* Hover: efecto visual */
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 224, 255, 0.4);
}

.service-card i {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: #1E5AA8; /* azul sólido corporativo */
    transition: color 0.3s ease;
}

/* Hover: cambia a turquesa eléctrico */
.service-card:hover i {
    color: #00CED1;
}


    .service-card:hover .service-info {
        opacity: 1;
    }

    .service-card:hover h3 {
        opacity: 0.9;
    }

/* Botón destacado */
.btn-hero {
    background-color: #1E5AA8;
    color: #ffffff;
    border-radius: 30px;
    padding: 0.8rem 2rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    transition: all 0.4s ease;
    text-transform: none;
}

    .btn-hero:hover {
        background-color: #4FB3FF;
        color: #0A1F44;
        box-shadow: 0 0 15px #4FB3FF;
        transform: translateY(-3px);
    }

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(40px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}


/* Barra superior estilo moderno */
.techsaviors-navbar {
    background: #1dc2ef; /* azul sólido corporativo */
    border-radius: 40px;
    height: 100px;
    margin: 1rem auto;
    width: 95%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25); /* sombra neutra */
    position: sticky;
    top: 15px;
    z-index: 1000;
}




/* Animación flotante */
@keyframes bubbleFloat {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }

    100% {
        transform: translateY(0);
    }
}

/* Animación de cambio de color */
@keyframes colorShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}



/* Logo centrado */
.navbar-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.logo-img {
    height: 130px;
    transition: transform 0.3s ease;
}

    .logo-img:hover {
        transform: scale(1.1);
    }

/* Correo a la izquierda */
.navbar-left {
    flex: 1;
    display: flex;
    align-items: center;
}

.navbar-email {
    color: #e6f2ff;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

    .navbar-email i {
        margin-right: 0.5rem;
        color: #cce6ff;
        animation: pulse 2s infinite;
    }

    .navbar-email:hover {
        color: #ffffff;
    }

/* Animación pulso para el ícono de correo */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}


/* Menú a la derecha */
.navbar-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}


/* Botones dentro de la barra */
.btn-techsaviors {
    color: #ffffff;
    background-color: #1E5AA8;
    border-radius: 20px;
    padding: 0.4rem 1rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    transition: all 0.3s ease;
}


    .btn-techsaviors:hover {
        background-color: #4FB3FF;
        color: #0A1F44;
        box-shadow: 0 0 10px #4FB3FF;
        transform: translateY(-2px);
    }




/* Metodología */
.methodology-section {
    padding-top: 6rem; /* más espacio arriba */
    padding-bottom: 6rem;
    background: #f7f9fc; /* blanco grisáceo, más suave que el blanco puro */
}

/* Título principal */
.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    color: #0A1F44 !important; /* azul marino fuerte para contraste */
    text-shadow: 0 3px 8px rgba(0, 0, 0, 0.25); /* sombra marcada */
    margin-bottom: 1.5rem;
    position: relative;
}

    /* Subrayado decorativo */
    .section-title::after {
        content: "";
        display: block;
        width: 80px;
        height: 4px;
        background: #1E5AA8; /* azul corporativo */
        margin: 0.8rem auto 0;
        border-radius: 2px;
    }

/* Subtítulo */
.section-subtitle {
    font-size: 1.3rem;
    color: #333 !important; /* gris oscuro para contraste */
    margin-bottom: 5rem; /* más separación respecto a las tarjetas */
}

/* Contenedor de tarjetas */
.methodology-cards {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 4rem; /* baja las casillas respecto al subtítulo */
}


/* Tarjetas */
.method-card {
    background: linear-gradient(135deg, #e6f2ff, #cce6ff); /* azul muy claro */
    border-radius: 12px;
    width: 220px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 0 10px rgba(30, 90, 168, 0.2);
}

    .method-card i {
        font-size: 2.5rem;
        color: #1E5AA8;
        margin-bottom: 0.8rem;
        transition: transform 0.4s ease, color 0.4s ease;
    }

    .method-card h3 {
        font-family: 'Orbitron', sans-serif;
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
        color: #0A1F44;
    }

    .method-card p {
        font-size: 0.9rem;
        color: #0A1F44;
    }

    /* Hover efecto */
    .method-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 0 20px rgba(79, 179, 255, 0.6);
    }

        .method-card:hover i {
            color: #4FB3FF;
            transform: scale(1.2);
        }

.differentiators-section {
    background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
    color: #fff;
    border-radius: 12px;
    padding: 3rem 2rem;
    animation: fadeInUp 1s ease;
}

    .differentiators-section .section-title {
        font-family: 'Orbitron', sans-serif;
        font-size: 2.2rem;
        font-weight: 700;
        margin-bottom: 0.5rem;
        color: #ffffff;
        animation: slideUp 1.2s ease;
    }

    .differentiators-section .section-subtitle {
        font-family: 'Montserrat', sans-serif;
        font-size: 1.1rem;
        margin-bottom: 2rem;
        color: #cce6ff;
        animation: fadeIn 1.5s ease;
    }

.differentiators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.diff-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 0 10px rgba(255,255,255,0.2);
    animation: zoomIn 1.2s ease;
}

    .diff-card i {
        font-size: 2.5rem;
        color: #ffffff;
        margin-bottom: 0.8rem;
        transition: transform 0.4s ease, color 0.4s ease;
    }

    .diff-card h3 {
        font-family: 'Orbitron', sans-serif;
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
        color: #ffffff;
    }

    .diff-card p {
        font-size: 0.9rem;
        color: #f0f8ff;
    }

    /* Hover efecto */
    .diff-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 0 20px rgba(255,255,255,0.6);
    }

        .diff-card:hover i {
            color: #4FB3FF;
            transform: scale(1.2);
        }

/* Animaciones */
@keyframes fadeInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(40px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Tabla de planes */
.table-plans {
    background: rgba(255,255,255,0.95);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(30,90,168,0.3);
    width: 100%;
}

    /* Encabezados */
    .table-plans th {
        background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
        color: #fff;
        font-family: 'Orbitron', sans-serif;
        text-align: center;
        font-size: 1.1rem;
        padding: 0.75rem;
    }

    /* Celdas */
    .table-plans td {
        text-align: center;
        font-size: 0.95rem;
        font-family: 'Montserrat', sans-serif;
        padding: 0.75rem;
    }

/* Botones */
.plan-buttons td {
    padding: 1rem;
}

.plan-buttons a {
    display: block;
    width: 100%;
    margin: 0.3rem auto;
}

/* Responsive */
@media (max-width: 768px) {
    .table-responsive {
        overflow-x: auto; /* scroll horizontal si es necesario */
    }

    .table-plans th {
        font-size: 0.9rem; /* encabezados más compactos */
        padding: 0.5rem;
    }

    .table-plans td {
        font-size: 0.8rem; /* texto más pequeño en móvil */
        padding: 0.5rem;
    }

    .plan-buttons a {
        font-size: 0.85rem;
        padding: 0.5rem;
    }
}

.btn-techsaviors {
    color: #fff;
    background-color: #1E5AA8;
    border-radius: 20px;
    padding: 0.5rem 1.2rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

    .btn-techsaviors:hover {
        background-color: #4FB3FF;
        color: #0A1F44;
        box-shadow: 0 0 10px #4FB3FF;
        transform: translateY(-2px);
    }


/* Título principal planes */
/* Burbuja */
.bubble-title {
    display: inline-block;
    background: rgba(30, 90, 168, 0.9); /* azul con transparencia */
    padding: 1.5rem 2.5rem;
    border-radius: 50px;
    box-shadow: 0 0 20px rgba(79, 179, 255, 0.6);
    animation: floatBubble 6s ease-in-out infinite;
}

/* Animación suave */
@keyframes floatBubble {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-8px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* Título */
/* Burbuja */
.bubble-title {
    display: inline-block;
    background: rgba(79, 179, 255, 0.9); /* azul claro translúcido */
    padding: 2rem 3rem;
    border-radius: 40px;
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.3);
    animation: floatBubble 5s ease-in-out infinite;
    transform: translateY(-40px); /* sube más la burbuja */
}

/* Animación flotante */
@keyframes floatBubble {
    0% {
        transform: translateY(-40px);
    }

    50% {
        transform: translateY(-55px);
    }

    100% {
        transform: translateY(-40px);
    }
}

/* Título */
.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.4rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

    /* Marca resaltada */
    .section-title .brand {
        color: #FFD700; /* dorado para resaltar TechSaviors */
    }

/* Subtítulo */
.section-subtitle {
    font-size: 1.2rem;
    color: #f0f0f0;
    margin: 0;
}

/* Modal cubre toda la pantalla, incluso la barra */
.modal {
    display: none;
    position: fixed;
    z-index: 9999; /* más alto que la barra */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
}

/* Contenido centrado */
.modal-content {
    background: #fff;
    color: #0A1F44;
    margin: 3% auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 1000px; /* ancho grande para horizontal */
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    animation: fadeIn 0.4s ease;
}

.close {
    float: right;
    font-size: 1.5rem;
    cursor: pointer;
    color: #1E5AA8;
}

/* Formulario horizontal */
.form-techsaviors-horizontal {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    align-items: center;
    justify-content: space-between;
}

.form-row {
    flex: 1 1 45%; /* dos campos por fila */
    display: flex;
    flex-direction: column;
}

    .form-row label {
        font-weight: 600;
        margin-bottom: 0.3rem;
    }

    .form-row input,
    .form-row select {
        padding: 0.6rem;
        border: 1px solid #ccc;
        border-radius: 6px;
        font-size: 0.95rem;
        transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

        .form-row input:focus,
        .form-row select:focus {
            border-color: #1E5AA8;
            box-shadow: 0 0 8px rgba(30,90,168,0.3);
            outline: none;
        }

.form-actions {
    flex: 1 1 100%;
    text-align: center;
    margin-top: 1rem;
}



@media (max-width: 768px) {
    .techsaviors-navbar {
        flex-direction: column;
        height: auto;
        border-radius: 20px;
        padding: 0.5rem;
    }

    .navbar-left,
    .navbar-center,
    .navbar-right {
        flex: unset;
        width: 100%;
        justify-content: center;
        margin: 0.3rem 0;
        text-align: center;
    }

    .logo-img {
        max-height: 80px;
        height: auto;
    }

    .btn-techsaviors {
        display: block;
        width: 100%;
        margin: 0.3rem 0;
        text-align: center;
    }

    .navbar-email {
        font-size: 0.85rem;
        display: block;
        margin-bottom: 0.5rem;
    }
}

/* Sección de contacto estilo correo */
.contact-section {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(30,90,168,0.2);
    padding: 2rem;
    max-width: 700px;
    margin: auto;
}

/* Títulos */
.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    color: #1E5AA8;
    margin-bottom: 0.5rem;
    text-align: center;
}

.section-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    color: #333;
    text-align: center;
    margin-bottom: 1.5rem;
}

/* Formulario */
.form-contacto .form-group {
    margin-bottom: 1rem;
}

.form-contacto label {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    color: #1E5AA8;
    margin-bottom: 0.3rem;
}

.form-contacto input,
.form-contacto select,
.form-contacto textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #cce6ff;
    border-radius: 6px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
}

/* Botón */
.btn-techsaviors {
    background: #1E5AA8;
    color: #fff;
    border: none;
    border-radius: 20px;
    padding: 0.6rem 1.5rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    transition: all 0.3s ease;
}

    .btn-techsaviors:hover {
        background: #4FB3FF;
        color: #0A1F44;
        box-shadow: 0 0 8px #4FB3FF;
    }

/* Responsive */
@media (max-width: 768px) {
    .contact-section {
        padding: 1rem;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .section-subtitle {
        font-size: 0.85rem;
    }

    .btn-techsaviors {
        width: 100%; /* botón ocupa todo el ancho en móvil */
    }
}


/* ====== General Futurista ====== */

/* ====== Botón fijo de regreso ====== */
.back-button {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1000;
    border-radius: 25px;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 0 10px rgba(30,90,168,0.3);
    transition: all 0.3s ease;
}

    .back-button:hover {
        background: #4FB3FF;
        color: #0A1F44;
    }

/* ====== Dashboard Menu ====== */
.dashboard-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    padding: 2rem;
}

.menu-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(30,90,168,0.15);
    text-align: center;
    padding: 2rem 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    border: 1px solid rgba(79,179,255,0.2);
}

    .menu-card:hover {
        transform: translateY(-8px) scale(1.02);
        box-shadow: 0 12px 25px rgba(30,90,168,0.25);
    }

    .menu-card i {
        font-size: 2.8rem;
        color: #1E5AA8;
        margin-bottom: 1rem;
        transition: color 0.3s ease;
    }

    .menu-card:hover i {
        color: #4FB3FF;
    }

    .menu-card span {
        display: block;
        font-weight: 600;
        color: #2c3e50;
        font-size: 1.1rem;
        letter-spacing: 0.5px;
    }

/* ====== Pages ====== */
.page-container {
    padding: 2rem;
    background: #f4f7fb;
    min-height: 100vh;
}

.page-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(30,90,168,0.15);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(79,179,255,0.2);
    animation: fadeIn 0.6s ease-in-out;
}

    .page-card h2 {
        font-family: 'Orbitron', sans-serif;
        color: #1E5AA8;
        margin-bottom: 1.5rem;
        display: flex;
        align-items: center;
        gap: 0.8rem;
        font-size: 1.4rem;
        letter-spacing: 0.5px;
    }

        .page-card h2 i {
            color: #4FB3FF;
            font-size: 1.6rem;
        }

/* ====== Inventario Box ====== */
.inventory-box {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(30,90,168,0.25);
    padding: 1rem;
    margin-top: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .inventory-box:hover {
        transform: translateY(-5px);
        box-shadow: 0 0 25px rgba(30,90,168,0.35);
    }

    .inventory-box h5 {
        font-family: 'Orbitron', sans-serif;
        color: #1E5AA8;
        margin-bottom: 0.5rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 1.1rem;
    }

.inventory-scroll {
    max-height: 150px;
    overflow-y: auto;
    font-size: 0.9rem;
    color: #333;
    animation: fadeIn 0.8s ease-in-out;
}

.inventory-line {
    padding: 0.3rem 0;
    border-bottom: 1px solid #eee;
    transition: background 0.3s ease;
}

    .inventory-line:hover {
        background: #f0f8ff;
    }

/* ====== Inventario Index con scroll interno ====== */
.inventory-table-box {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 8px;
    animation: fadeIn 0.8s ease-in-out;
}

/* ====== Login ====== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
    animation: gradientShift 8s infinite alternate;
}

.login-box {
    background: #fff;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 0 25px rgba(30,90,168,0.4);
    width: 360px;
    text-align: center;
    animation: fadeIn 1s ease-in-out;
}

    /* Título */
    .login-box h2 {
        font-family: 'Orbitron', sans-serif;
        color: #1E5AA8;
        margin-bottom: 1.5rem;
        font-size: 1.4rem;
        letter-spacing: 1px;
    }

    /* Labels */
    .login-box label {
        display: block;
        text-align: left;
        font-weight: 600;
        color: #000; /* letras negras */
        margin-bottom: 0.3rem;
    }

    /* Inputs */
    .login-box input {
        margin-bottom: 1rem;
        border-radius: 8px;
        border: 1px solid #cce6ff;
        padding: 0.75rem;
        color: #000; /* texto negro */
        background-color: #fff; /* fondo blanco */
        transition: box-shadow 0.3s ease;
    }

        .login-box input:focus {
            box-shadow: 0 0 8px #4FB3FF;
            outline: none;
        }

    /* Botón */
    .login-box button {
        border-radius: 25px;
        padding: 0.75rem;
        font-weight: 600;
        background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
        border: none;
        color: #fff;
        transition: all 0.3s ease;
    }

        .login-box button:hover {
            background: #4FB3FF;
            color: #0A1F44;
            box-shadow: 0 0 15px #4FB3FF;
            transform: scale(1.05);
        }

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0% {
        background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
    }

    100% {
        background: linear-gradient(135deg, #4FB3FF, #1E5AA8);
    }
}

/* ====== Botón de regreso ====== */
.back-button {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1000;
    border-radius: 25px;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 0 10px rgba(30,90,168,0.3);
    transition: all 0.3s ease;
}

    .back-button:hover {
        background: #4FB3FF;
        color: #0A1F44;
        transform: translateX(5px);
    }

/* ====== Animaciones ====== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0% {
        background: linear-gradient(135deg, #1E5AA8, #4FB3FF);
    }

    100% {
        background: linear-gradient(135deg, #4FB3FF, #1E5AA8);
    }
}