/* Círculos decorativos flotantes */
.floating-circle-1 {
    width: 36px;
    height: 36px;
    background: #FFD600;
    border-radius: 50%;
    top: 25%;
    right: 0%;
    opacity: 0.6;
    position: absolute;
    animation: floatCircle1 7s infinite ease-in-out;
}

.floating-circle-2 {
    width: 28px;
    height: 28px;
    background: #00B8D4;
    border-radius: 50%;
    bottom: 0%;
    left: 50%;
    opacity: 0.5;
    position: absolute;
    animation: floatCircle2 6s infinite ease-in-out;
}

@keyframes floatCircle1 {

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

    50% {
        transform: translateY(-18px);
    }
}

@keyframes floatCircle2 {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(18px);
    }
}

/* Triángulos decorativos flotantes */
.floating-triangle-1 {
    width: 0;
    height: 0;
    border-left: 22px solid transparent;
    border-right: 22px solid transparent;
    border-bottom: 38px solid #FF1744;
    top: 15%;
    left: 30%;
    opacity: 0.6;
    position: absolute;
    animation: floatTriangle1 8s infinite ease-in-out;
}

.floating-triangle-2 {
    width: 0;
    height: 0;
    border-left: 16px solid transparent;
    border-right: 16px solid transparent;
    border-bottom: 28px solid #00C853;
    bottom: 1%;
    left: 70%;
    opacity: 0.5;
    position: absolute;
    animation: floatTriangle2 6s infinite ease-in-out;
}

@keyframes floatTriangle1 {

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

    50% {
        transform: translateY(22px);
    }
}

@keyframes floatTriangle2 {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(-22px);
    }
}

/* Elementos decorativos flotantes para hero */
.floating-decor {
    position: absolute;
    z-index: 0;
    pointer-events: none;
}

.floating-square-1 {
    width: 40px;
    height: 40px;
    background: #FF4081;
    border-radius: 16px;
    top: 5%;
    left: 60%;
    opacity: 0.7;
    animation: float1 6s infinite ease-in-out;
}

.floating-square-2 {
    width: 32px;
    height: 32px;
    background: #00E676;
    border-radius: 12px;
    top: 60%;
    left: 8%;
    opacity: 0.7;
    animation: float2 7s infinite ease-in-out;
}

.floating-square-3 {
    width: 24px;
    height: 24px;
    background: #2979FF;
    border-radius: 8px;
    top: 40%;
    left: 2%;
    opacity: 0.7;
    animation: float3 5s infinite ease-in-out;
}

.floating-arrow-1 {
    animation: floatArrow1 8s infinite ease-in-out;
}

.floating-arrow-2 {
    animation: floatArrow2 9s infinite ease-in-out;
}

@keyframes float1 {

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

    50% {
        transform: translateY(-20px);
    }
}

@keyframes float2 {

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

    50% {
        transform: translateY(25px);
    }
}

@keyframes float3 {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(20px);
    }
}

@keyframes floatArrow1 {

    0%,
    100% {
        transform: rotate(-10deg);
    }

    50% {
        transform: rotate(10deg);
    }
}

@keyframes floatArrow2 {

    0%,
    100% {
        transform: rotate(10deg);
    }

    50% {
        transform: rotate(-10deg);
    }
}

/* Estilos personalizados para Kalkulus */

/* Logo del navbar */
.navbar-brand img {
    width: 120px;
    height: auto;
}

/* Estilos adicionales para el navbar */
.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1000;
}

/* Navbar fijo al hacer scroll */
.navbar.navbar-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
    animation: slideDown 0.3s ease;
}

/* Animación para cuando aparece el navbar fijo */
@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }

    to {
        transform: translateY(0);
    }
}

/* Compensar el espacio cuando el navbar se vuelve fijo */
body.navbar-fixed-active {
    padding-top: 80px;
}

/* Hero section */
#hero {
    min-height: 700px;
    background:url(../img/hero-bg.png) no-repeat bottom /cover;

    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: hero-gradient 12s ease-in-out infinite;
    position: relative;
}

#hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    background:
        url('data:image/svg+xml;utf8,<svg width=\"32\" height=\"32\" viewBox=\"0 0 32 32\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"><circle cx=\"8\" cy=\"8\" r=\"0.8\" fill=\"white\" opacity=\"0.07\"/><circle cx=\"24\" cy=\"24\" r=\"0.8\" fill=\"white\" opacity=\"0.07\"/><circle cx=\"16\" cy=\"16\" r=\"1.1\" fill=\"white\" opacity=\"0.09\"/></svg>');
    background-size: 32px 32px;
    animation: wave-dots 8s linear infinite;

    @keyframes wave-dots {
        0% {
            transform: translateY(0) translateX(0) scale(1);
        }

        15% {
            transform: translateY(-12px) translateX(8px) scale(1.05);
        }

        30% {
            transform: translateY(-24px) translateX(16px) scale(1.08);
        }

        50% {
            transform: translateY(-12px) translateX(8px) scale(1.05);
        }

        70% {
            transform: translateY(0) translateX(0) scale(1);
        }

        100% {
            transform: translateY(0) translateX(0) scale(1);
        }
    }

    background-repeat: repeat;
}

@keyframes hero-gradient {
    0% {
        background-position: 0% 50%;
    }

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

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

#hero h1 {
    color: #d9e2f1;

}

/* Imagen de la app en el hero */
.hero-image {
    position: relative;
    padding: 2rem 0;
}

.hero-app {
    max-width: 100%;
    height: auto;
    max-height: 500px;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.15));
    transition: transform 0.3s ease;
    position: relative;
    z-index: 2;
}

.hero-app:hover {
    transform: scale(1.02);
}

/* Efectos de animación para la imagen */
@keyframes float {

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

    50% {
        transform: translateY(-10px);
    }
}

.hero-app {
    animation: float 3s ease-in-out infinite;
}

/* Responsive para la imagen del hero */
@media (max-width: 768px) {
    .hero-image {
        margin-top: 2rem;
        padding: 1rem 0;
    }

    .hero-app {
        max-height: 350px;
    }

    #hero {
        text-align: center !important;
    }

    #hero .col-lg-6:first-child {
        text-align: center;
    }

    #hero .d-flex {
        justify-content: center !important;
    }
}

/* Estilos generales */
body {
    font-family: 'Poppins', sans-serif;
}

/* Variables de color personalizadas */
:root {
    --primary-color: #2f3b5d;
    --primary-color-alter: #364470;
    --accent-color: #38ad71;
    --primary-hover: #253046;
    --accent-hover: #2e8a5a;
}

/* Scroll suave para toda la página */
html {
    scroll-behavior: smooth;
}

/* Offset para compensar el navbar fijo */
section {
    scroll-margin-top: 80px;
}

/* Aplicar Poppins a todos los elementos de texto */
h1,
h2,
h3,
h4,
h5,
h6,
p,
a,
span,
div,
button,
input,
textarea,
select {
    font-family: 'Poppins', sans-serif;
}

/* Navbar con Poppins */
.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

/* Botón CTA especial en navbar */
.navbar .btn-primary {
    background: linear-gradient(45deg, var(--primary-color), #3e4c73);
    border: none;
    border-radius: 8px;
    padding: 8px 24px;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.4s ease;
    box-shadow: 0 2px 8px rgba(47, 59, 93, 0.3);
    position: relative;
    overflow: hidden;
}

.navbar .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.navbar .btn-primary:hover {
    background: linear-gradient(45deg, var(--accent-color), #45c078);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 20px rgba(56, 173, 113, 0.4);
    color: white;
}

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

.navbar .btn-primary:active {
    transform: translateY(-1px) scale(1.02);
}

.navbar-nav .nav-link:hover {
    color: var(--accent-color) !important;
}

.navbar-nav .nav-link.active {
    color: var(--accent-color) !important;
    font-weight: 600;
}

/* Efecto underline para enlaces activos */
.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

/* Navbar fijo con sombra suave al hacer scroll */
.navbar {
    transition: box-shadow 0.3s ease;
}

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

/* Ajustes para el logo cuando el navbar está fijo */
.navbar.navbar-fixed .navbar-brand img {
    width: 60px;
    /* Más pequeño cuando está fijo */
    transition: width 0.3s ease;
}

/* Ajustes responsive para navbar fijo */
@media (max-width: 768px) {
    .navbar.navbar-fixed {
        padding: 0.3rem 0;
    }

    body.navbar-fixed-active {
        padding-top: 70px;
    }
}

/* Botones con Poppins */
.btn {
    font-weight: normal;
}

/* Botones primarios personalizados */
.btn-primary {
    background: var(--primary-color);
    color: white;
    border-color: #fff;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(47, 59, 93, 0.08);
    font-weight: normal;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background: linear-gradient(90deg, var(--accent-color) 0%, var(--primary-color) 100%);
    color: #fff;
    border-color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(47, 59, 93, 0.18);
}

/* Inputs en el hero */
.btn-sistema {
    color: #fff;
    border-color: #fff;
    box-shadow: 0 2px 8px rgba(47, 59, 93, 0.08);
    font-weight: normal;
    font-weight: normal;
}

.btn-sistema:hover,
.btn-sistema:focus,
.btn-sistema:active {
    background: linear-gradient(90deg, var(--accent-color) 0%, var(--primary-color) 100%);
    color: #fff !important;
    border-color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(47, 59, 93, 0.18);
}

#hero .btn-comenzar {
    background: #fff;
    color: var(--primary-color);
}

#hero .btn-comenzar:hover,
#hero .btn-comenzar:focus,
#hero .btn-comenzar:active {
    color: white;
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(0px);
}

#hero .form-control {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
    font-weight: normal;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#hero .form-control::placeholder {
    color: #e0e6f6;
    opacity: 1;
}

#hero .form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(47, 59, 93, 0.12);
    background: transparent;
    color: #fff;
}

/* Botones de acento (success) personalizados */
.btn-success {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.btn-success:hover,
.btn-success:focus,
.btn-success:active {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    color: white;
}

/* Títulos con peso específico */
h1,
.display-4 {
    font-weight: 700;
}

h2,
h3 {
    font-weight: 600;
}

h4,
h5,
h6 {
    font-weight: 500;
}

/* Sección de Clientes */
#clientes {
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

.clientes-slider .cliente-logo {
    text-align: center;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
}

.clientes-slider .cliente-logo img {
    max-height: 60px;
    max-width: 120px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
    filter: grayscale(100%);
}

.clientes-slider .cliente-logo img:hover {
    opacity: 1;
    filter: grayscale(0%);
}

.clientes-slider .slick-slide {
    outline: none;
}

/* Sección de Características */
#caracteristicas .card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#caracteristicas .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

#caracteristicas .feature-icon {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    width: 80px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent-color), #45c078);
    box-shadow: 0 4px 15px rgba(56, 173, 113, 0.3);
    transition: all 0.3s ease;
}

#caracteristicas .feature-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(56, 173, 113, 0.4);
}

#caracteristicas .feature-icon {
    color: white !important;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

/* Variaciones de colores para diferentes características */
#caracteristicas .row>div:nth-child(1) .card .feature-icon {
    background: linear-gradient(135deg, #38ad71, #45c078);
}

#caracteristicas .row>div:nth-child(2) .card .feature-icon {
    background: linear-gradient(135deg, #2f3b5d, #3e4c73);
}

#caracteristicas .row>div:nth-child(3) .card .feature-icon {
    background: linear-gradient(135deg, #e74c3c, #f56565);
}

#caracteristicas .row>div:nth-child(4) .card .feature-icon {
    background: linear-gradient(135deg, #f39c12, #fbbf24);
}

#caracteristicas .row>div:nth-child(5) .card .feature-icon {
    background: linear-gradient(135deg, #9b59b6, #be83e0);
}

#caracteristicas .row>div:nth-child(6) .card .feature-icon {
    background: linear-gradient(135deg, #3498db, #60a5fa);
}

#caracteristicas .row>div:nth-child(7) .card .feature-icon {
    background: linear-gradient(135deg, #1abc9c, #34d399);
}

#caracteristicas .row>div:nth-child(8) .card .feature-icon {
    background: linear-gradient(135deg, #e67e22, #fb923c);
}

#caracteristicas .row>div:nth-child(9) .card .feature-icon {
    background: linear-gradient(135deg, #8e44ad, #a569bd);
}

/* Ajustar sombras para cada color */
#caracteristicas .row>div:nth-child(1) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(56, 173, 113, 0.4);
}

#caracteristicas .row>div:nth-child(2) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(47, 59, 93, 0.4);
}

#caracteristicas .row>div:nth-child(3) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
}

#caracteristicas .row>div:nth-child(4) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(243, 156, 18, 0.4);
}

#caracteristicas .row>div:nth-child(5) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(155, 89, 182, 0.4);
}

#caracteristicas .row>div:nth-child(6) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

#caracteristicas .row>div:nth-child(7) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(26, 188, 156, 0.4);
}

#caracteristicas .row>div:nth-child(8) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(230, 126, 34, 0.4);
}

#caracteristicas .row>div:nth-child(9) .card .feature-icon:hover {
    box-shadow: 0 8px 25px rgba(142, 68, 173, 0.4);
}

/* Estilos para Feather Icons */
.feather-sm {
    width: 16px;
    height: 16px;
    stroke-width: 2.5;
}

.feather-lg {
    width: 48px;
    height: 48px;
    stroke-width: 1.5;
}

/* Iconos en el hero */
#hero .feather-sm {
    color: #fff;
    background: var(--accent-color);
    border-radius: 8px;
    padding: 12px;
    width: 40px;
    height: 40px;
    vertical-align: middle;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 2px 8px rgba(47, 59, 93, 0.12);
    transition: background 0.3s;
}

#caracteristicas .card-title {
    font-weight: 600;
    color: #323f63;
}

#caracteristicas .card-text {
    font-size: 0.8rem;
    line-height: 1.9;
}

/* Sección de Precios */
#precios .plan-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 400px;
    /* Altura fija para mantener uniformidad */
}

#precios .plan-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15) !important;
}

#precios .plan-title {
    color: #212529;
    font-size: 1.25rem;
}

#precios .plan-price {
    color: var(--primary-color);
    font-weight: 700;
}

#precios .plan-desc {
    font-size: 0.95rem;
    line-height: 1.5;
    min-height: 60px;
}

#precios .plan-duration {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Estilos específicos para el carrusel de precios */
.precios-slider .plan-slide {
    outline: none;
    padding: 0 10px;
}

.precios-slider .slick-dots {
    bottom: -50px;
}

.precios-slider .slick-dots li button:before {
    font-size: 12px;
    color: var(--primary-color);
}

.precios-slider .slick-dots li.slick-active button:before {
    color: var(--accent-color);
    opacity: 1;
}

.precios-slider .slick-arrow {
    width: 40px;
    height: 40px;
    z-index: 2;
}

.precios-slider .slick-arrow:before {
    font-size: 20px;
    color: var(--primary-color);
}

.precios-slider .slick-arrow:hover:before {
    color: var(--accent-color);
}

.precios-slider .slick-prev {
    left: -50px;
}

.precios-slider .slick-next {
    right: -50px;
}

/* Animación de carga */
#precios .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Responsive para precios */
@media (max-width: 768px) {
    #precios .plan-price {
        font-size: 2rem;
    }

    .precios-slider .slick-prev {
        left: -25px;
    }

    .precios-slider .slick-next {
        right: -25px;
    }

    #precios .plan-card {
        height: auto;
    }
}

/* Sección de Contacto */
#contacto {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

#contacto .card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#contacto .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15) !important;
}

#contacto .form-control {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 12px 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#contacto .form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(56, 173, 113, 0.25);
}

#contacto .form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 8px;
}

#contacto .btn-success {
    background: linear-gradient(45deg, #25d366, #128c7e);
    border: none;
    border-radius: 25px;
    padding: 12px 30px;
    font-weight: 500;
    transition: all 0.3s ease;
}

#contacto .btn-success:hover {
    background: linear-gradient(45deg, #128c7e, #25d366);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(37, 211, 102, 0.3);
}

.contact-options {
    padding: 2rem 0;
}

/* Animación para el botón de WhatsApp */
@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

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

#contacto .btn-success:hover {
    animation: pulse 1s infinite;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #2c3e50, #34495e) !important;
    border-top: 3px solid var(--accent-color);
}

footer p {
    font-size: 0.9rem;
}

footer a {
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-color) !important;
    text-decoration: underline;
}

footer .feather-sm {
    width: 14px;
    height: 14px;
    stroke-width: 2;
    vertical-align: middle;
    animation: heartbeat 2s ease-in-out infinite;
}

/* Animación del corazón */
@keyframes heartbeat {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* Responsive para footer */
@media (max-width: 768px) {
    footer .col-md-6 {
        text-align: center !important;
        margin-bottom: 0.5rem;
    }

    footer .col-md-6:last-child {
        margin-bottom: 0;
    }
}

/* Form Validation Styles */
.input-wrapper {
    position: relative;
}

.input-wrapper .input-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: #6c757d;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 10;
}

.input-wrapper .textarea-icon {
    top: 38px;
    transform: none;
}

.form-control {
    position: relative;
    padding-right: 45px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: #fafbfc;
}

.form-control:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 0.2rem rgba(56, 173, 113, 0.15);
    background: white;
}

.form-control:focus+.input-icon {
    color: var(--accent-green);
}

/* Validation States */
.form-control.is-valid {
    border-color: #28a745;
    background: #f8fff9;
    animation: validPulse 0.6s ease;
}

.form-control.is-valid+.input-icon {
    color: #28a745;
    animation: iconSuccess 0.6s ease;
}

.form-control.is-invalid {
    border-color: #dc3545;
    background: #fff5f5;
    animation: invalidShake 0.6s ease;
}

.form-control.is-invalid+.input-icon {
    color: #dc3545;
    animation: iconError 0.6s ease;
}

/* Feedback Messages */
.invalid-feedback {
    display: none;
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    padding-left: 12px;
    position: relative;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.invalid-feedback::before {
    content: "⚠";
    margin-right: 5px;
    font-weight: bold;
}

.valid-feedback {
    display: none;
    color: #28a745;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    padding-left: 12px;
    position: relative;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.valid-feedback::before {
    content: "✓";
    margin-right: 5px;
    font-weight: bold;
}

.form-control.is-invalid~.invalid-feedback {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.form-control.is-valid~.valid-feedback {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Animations */
@keyframes validPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(40, 167, 69, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(40, 167, 69, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(40, 167, 69, 0);
    }
}

@keyframes invalidShake {

    0%,
    100% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-5px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(5px);
    }
}

@keyframes iconSuccess {
    0% {
        transform: translateY(-50%) scale(1);
    }

    50% {
        transform: translateY(-50%) scale(1.2);
    }

    100% {
        transform: translateY(-50%) scale(1);
    }
}

@keyframes iconError {
    0% {
        transform: translateY(-50%) rotate(0deg);
    }

    25% {
        transform: translateY(-50%) rotate(-5deg);
    }

    75% {
        transform: translateY(-50%) rotate(5deg);
    }

    100% {
        transform: translateY(-50%) rotate(0deg);
    }
}

/* Loading State */
.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Form Success State */
.form-success {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    margin-top: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.form-success.show {
    opacity: 1;
    transform: translateY(0);
}

.form-success h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.form-success p {
    margin: 0;
    opacity: 0.9;
}

/* Responsive para formulario de contacto */
@media (max-width: 768px) {
    #contactForm .row .col-md-6:first-child {
        margin-bottom: 1rem;
    }

    #contactForm textarea {
        min-height: 150px;
    }
}

/* Mejorar espaciado del formulario */
#contactForm .row {
    margin-bottom: 1rem;
}

#contactForm .col-md-6 {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
}

/* reCAPTCHA v3 Styles */
#recaptcha-error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    padding-left: 12px;
}

#recaptcha-error::before {
    content: "⚠";
    margin-right: 5px;
    font-weight: bold;
}

/* Tarjetas de servicios Novatia */
.card.servicio-card {
    border-radius: 18px;
    border: none;
    background: #f7fafc;
    box-shadow: 0 2px 16px 0 rgba(44,83,100,0.08);
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    position: relative;
    overflow: hidden;
}

.card.servicio-card .feature-icon {
    background: linear-gradient(135deg, #2c5364 0%, #0f2027 100%);
    border-radius: 12px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px auto;
    color: #fff;
    font-size: 2rem;
    box-shadow: 0 2px 8px rgba(44,83,100,0.10);
}

.card.servicio-card .card-title {
    font-weight: 700;
    color: #1a2a36;
    margin-bottom: 10px;
}

.card.servicio-card .card-text {
    color: #3a4a5a;
    font-size: 1rem;
    margin-bottom: 0;
}

.card.servicio-card:hover {
    background: linear-gradient(135deg, #a8ff78 0%, #78ffd6 100%);
    box-shadow: 0 8px 32px 0 rgba(44,83,100,0.18);
    transform: translateY(-4px) scale(1.03);
}

.card.servicio-card:hover .feature-icon {
    background: linear-gradient(135deg, #43cea2 0%, #185a9d 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(44,83,100,0.18);
}

.card.servicio-card:hover .card-title {
    color: #185a9d;
}

.card.servicio-card:hover .card-text {
    color: #185a9d;
}