/* 
-- COLORES --
Negro - #0D0D0D
Verde - #00FF85
Gris - #2E2E2E
Blanco - #F5F5F5
Azul - #007BFF 
*/

:root {
  --negro: #0D0D0D;
  --verde: #00FF85;
  --gris: #2E2E2E;
  --blanco: #F5F5F5;
  --azul: #007BFF;

  /* Variables adicionales */
  --max-width: 1200px;
  --padding-mobile: 1rem;
  --padding-desktop: 2rem;
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* RESET Y BASE */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
}

body {
  background-color: var(--negro);
  color: var(--blanco);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ANIMACIONES */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Clase para elementos que se animan al hacer scroll */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

a {
  color: var(--blanco);
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
}

/* UTILIDADES */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

/* HEADER */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--gris);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  animation: slideDown 0.5s ease-out;
}

.header__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem var(--padding-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo-img {
  height: 40px;
  width: auto;
}

.header__nav {
  display: none;
  gap: 2rem;
}

.header__nav-link {
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

.header__nav-link:hover {
  color: var(--verde);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--verde);
  transition: width 0.3s ease;
}

.header__nav-link:hover::after {
  width: 100%;
}

.header__menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1100;
  /* Para que siempre quede visible */
  position: relative;
}

.header__menu-line {
  width: 26px;
  height: 3px;
  background-color: var(--blanco);
  border-radius: 2px;
  transition: var(--transition);
}

.header__menu-toggle:hover .header__menu-line {
  background-color: var(--verde);
}

/* Animación del menú hamburguesa */
.header__menu-toggle--active .header__menu-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.header__menu-toggle--active .header__menu-line:nth-child(2) {
  opacity: 0;
}

.header__menu-toggle--active .header__menu-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Menú móvil activo */
.header__nav--active {
  display: flex !important;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(13, 13, 13, 0.98);
  backdrop-filter: blur(20px);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  z-index: 1000;
  animation: fadeIn 0.3s ease;
  padding-top: 0;
  /* Antes 80px, ahora centrado total */
  height: 100vh;
}

.header__nav--active .header__nav-link {
  font-size: 1.8rem;
  font-weight: 600;
  padding: 1rem 2rem;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.header__nav--active .header__nav-link:hover {
  border-color: var(--verde);
  background-color: rgba(0, 255, 133, 0.1);
  transform: scale(1.05);
}

/* Bloquear scroll cuando el menú está abierto */
.menu-open {
  overflow: hidden;
}

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

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

/* MAIN */
.main {
  margin-top: 70px;
}

/* HERO SECTION */
.hero {
  padding: 3rem 0;
  background: black;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

.hero__content {
  max-width: 700px;
}

.hero__title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--blanco), var(--verde));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  animation: fadeInUp 0.8s ease-out;
}

.hero__subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--verde);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero__description {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero__cta {
  display: inline-block;
  background: linear-gradient(45deg, var(--verde), var(--azul));
  color: var(--negro);
  font-weight: 600;
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  margin-bottom: 2rem;
  transition: var(--transition);
  text-align: center;
  animation: scaleIn 0.8s ease-out 0.6s both;
}

.hero__cta:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 255, 133, 0.3);
}

.hero__additional {
  font-size: 0.95rem;
  opacity: 0.8;
  max-width: 600px;
  animation: fadeInUp 0.8s ease-out 0.8s both;
}

/* SERVICES SECTION */
.services {
  padding: 4rem 0;
  background: linear-gradient(135deg, 
    var(--negro) 0%, 
    rgba(0, 255, 133, 0.08) 50%,
    var(--negro) 100%
  );
}

.services__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

.services__title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--verde);
  position: relative;
}

.services__title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--verde), transparent);
}

.services__grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: 1fr;
}

.service-card {
  background-color: #010101;
  border-radius: 12px;
  border: 1px solid rgba(0, 255, 133, 0.2);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 133, 0.1), transparent);
  transition: left 0.5s ease;
  z-index: 1;
}

.service-card:hover::before {
  left: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--verde);
  box-shadow: 0 12px 35px rgba(0, 255, 133, 0.2);
}

.service-card__image-container {
  width: 100%;
  height: 240px;
  overflow: hidden;
  position: relative;
}

.service-card__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.5s ease;
}

.service-card:hover .service-card__image {
  transform: scale(1.05);
}

.service-card__content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  position: relative;
  z-index: 2;
}

.service-card__title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--verde);
}

.service-card__description {
  margin-bottom: 1.5rem;
  opacity: 0.9;
  flex-grow: 1;
  line-height: 1.7;
}

.service-card__link {
  display: inline-block;
  color: var(--azul);
  font-weight: 600;
  border: 2px solid var(--azul);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  text-align: center;
}

.service-card__link:hover {
  background-color: var(--azul);
  color: var(--blanco);
}

/* PROCESS SECTION */
.process {
  padding: 4rem 0;
  background-color: var(--negro);
}

.process__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

.process__title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--verde);
}

.process__subtitle {
  font-size: 1.1rem;
  text-align: center;
  margin-bottom: 3rem;
  opacity: 0.9;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.process__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

.process-card {
  background-color: var(--gris);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius);
  border: 1px solid rgba(0, 255, 133, 0.2);
  transition: var(--transition);
  text-align: center;
}

.process-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--verde);
  box-shadow: 0 12px 35px rgba(0, 255, 133, 0.2);
}


.process-card__icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.process-card__icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.process-card:hover .process-card__icon {
  transform: scale(1.2) rotate(5deg);
}

.process-card__title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--verde);
}

.process-card__description {
  opacity: 0.9;
  line-height: 1.6;
}

/* FAQ SECTION */
.faq {
  padding: 4rem 0;
  background: linear-gradient(225deg, 
    var(--negro) 0%, 
    rgba(0, 255, 133, 0.06) 50%,
    var(--negro) 100%
  );
}

.faq__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

.faq__title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--verde);
}

.faq__list {
  display: grid;
  gap: 1.5rem;
}

.faq-item {
  background-color: var(--gris);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  border-left: 4px solid var(--verde);
  transition: var(--transition);
  cursor: pointer;
}

.faq-item:hover {
  background-color: rgba(46, 46, 46, 0.8);
  transform: translateX(8px);
  box-shadow: -4px 0 12px rgba(0, 255, 133, 0.2);
}

.faq-item__question {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--verde);
}

.faq-item__answer {
  opacity: 0.9;
  line-height: 1.6;
}

/* COMPARISON SECTION */
.comparison {
  padding: 4rem 0;
  background-color: var(--negro);
}

.comparison__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

.comparison__header {
  margin-bottom: 3rem;
}

.comparison__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--verde);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.comparison__subtitle {
  font-size: 1.05rem;
  color: rgba(245, 245, 245, 0.8);
  line-height: 1.6;
}

.comparison__cards {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

.comparison-card {
  padding: 2.5rem 2rem;
  border-radius: 12px;
  transition: var(--transition);
}

.comparison-card--a {
  background-color: #1a1a1a;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-card--a:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.comparison-card--b {
  background: linear-gradient(135deg, rgba(0, 255, 133, 0.15) 0%, rgba(0, 255, 133, 0.05) 100%);
  border: 1px solid rgba(0, 255, 133, 0.3);
  position: relative;
  overflow: hidden;
}

.comparison-card--b::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 255, 133, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.comparison-card--b:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 12px 35px rgba(0, 255, 133, 0.3);
  border-color: rgba(0, 255, 133, 0.5);
}

.comparison-card__title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--blanco);
  margin-bottom: 2rem;
  letter-spacing: 2px;
}

.comparison-card__title--blue {
  color: var(--verde);
}

.comparison-card__metrics {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.comparison-card__metric {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-card__metric--highlight {
  border-bottom: none;
  padding-top: 1rem;
  padding-bottom: 0;
}

.comparison-card__label {
  font-size: 0.9rem;
  color: rgba(245, 245, 245, 0.6);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.comparison-card__value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--blanco);
}

.comparison-card__value--large {
  font-size: 2.5rem;
  color: var(--verde);
  text-shadow: 0 0 20px rgba(0, 255, 133, 0.3);
}

.comparison-card--b .comparison-card__value--large {
  color: var(--verde);
  text-shadow: 0 0 20px rgba(0, 255, 133, 0.5);
}

/* CONTACT SECTION */
.contact {
  padding: 4rem 0;
  background: linear-gradient(315deg, 
    var(--negro) 0%, 
    rgba(0, 255, 133, 0.1) 50%,
    var(--negro) 100%
  );
}

.contact__container {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

.contact__title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--verde);
}

/* FOOTER */
.footer {
  background: linear-gradient(45deg, 
    var(--negro) 0%, 
    rgba(0, 255, 133, 0.07) 50%,
    var(--negro) 100%
  );
  padding: 3rem 0 1rem;
  border-top: 1px solid rgba(0, 255, 133, 0.2);
}

.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--padding-mobile);
}

.footer__main {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer__brand {
  text-align: center;
}

.footer__tagline {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.footer__logo {
  height: 50px;
  width: auto;
}

.footer__nav {
  text-align: center;
}

.footer__nav-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--verde);
}

.footer__nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__nav-link {
  transition: var(--transition);
}

.footer__nav-link:hover {
  color: var(--verde);
}

.footer__bottom {
  border-top: 1px solid rgba(245, 245, 245, 0.1);
  padding-top: 1.5rem;
  text-align: center;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.footer__legal-link {
  font-size: 0.9rem;
  opacity: 0.8;
  transition: var(--transition);
}

.footer__legal-link:hover {
  opacity: 1;
  color: var(--verde);
}

.footer__copyright {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* CONTACT FORM */
.contact-form__message {
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: var(--border-radius);
  text-align: center;
  font-weight: 500;
  display: none;
}

.contact-form__message.success {
  display: block;
  background-color: rgba(0, 255, 133, 0.1);
  border: 1px solid var(--verde);
  color: var(--verde);
}

.contact-form__message.error {
  display: block;
  background-color: rgba(255, 0, 0, 0.1);
  border: 1px solid #ff3333;
  color: #ff3333;
}

.case-studies {
  padding: 4rem 0;
  /* Fondo negro para contrastar con secciones grises como Services y Contact */
  background-color: var(--negro);
}

.case-studies__title {
  /* Estilo igual a .services__title y .faq__title [4, 5, 11] */
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--verde);
}

.case-studies__grid {
  /* Estructura de cuadrícula: una columna en móvil [4] */
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

/* Estilo de la Tarjeta Individual (Case Card) */
.case-card {
  background-color: var(--gris);
  /* Fondo gris para la tarjeta [7, 10] */
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid rgba(0, 255, 133, 0.2);
  /* Borde sutil, similar a service-card [8] */
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.case-card:hover {
  /* Efecto de elevación y cambio de borde, similar a service-card:hover [8] */
  transform: translateY(-4px);
  border-color: var(--verde);
  box-shadow: 0 10px 30px rgba(0, 255, 133, 0.2);
}

.case-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.case-card__content {
  padding: 1.5rem;
}

.case-card__title {
  /* Estilo similar a service-card__title [8] */
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--verde);
}

.case-card__description {
  margin-bottom: 1rem;
  opacity: 0.9;
}

.case-card__link {
  /* Estilo del botón similar a service-card__link [5, 8] */
  display: inline-block;
  color: var(--azul);
  font-weight: 600;
  border: 2px solid var(--azul);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.case-card__link:hover {
  background-color: var(--azul);
  color: var(--blanco);
}

/* NUEVOS ESTILOS PARA MENSAJES DINÁMICOS */
.form-message {
  padding: 15px 20px;
  margin-bottom: 20px;
  border-radius: var(--border-radius);
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  transition: opacity 0.3s ease, transform 0.3s ease;
  animation: slideDown 0.3s ease;
}

.form-message--success {
  background-color: rgba(0, 255, 133, 0.15);
  color: var(--verde);
  border: 2px solid var(--verde);
  box-shadow: 0 4px 15px rgba(0, 255, 133, 0.1);
}

.form-message--error {
  background-color: rgba(255, 51, 51, 0.15);
  color: #ff3333;
  border: 2px solid #ff3333;
  box-shadow: 0 4px 15px rgba(255, 51, 51, 0.1);
}

/* Animación de entrada para mensajes */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

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

.contact-form {
  background-color: var(--negro);
  padding: 2rem;
  border-radius: var(--border-radius);
  border: 1px solid rgba(0, 255, 133, 0.2);
  display: grid;
  gap: 1.5rem;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-form__label {
  font-size: 0.9rem;
  font-weight: 500;
}

.contact-form__input,
.contact-form__textarea {
  padding: 0.75rem;
  border: 2px solid var(--gris);
  border-radius: var(--border-radius);
  background-color: var(--negro);
  color: var(--blanco);
  font-family: inherit;
  transition: var(--transition);
}

.contact-form__input:focus,
.contact-form__textarea:focus {
  border-color: var(--verde);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 255, 133, 0.1);
}

.contact-form__textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-form__group--checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: 0.75rem;
}

.contact-form__checkbox {
  width: 20px;
  height: 20px;
  accent-color: var(--verde);
}

.contact-form__label--checkbox {
  font-size: 0.85rem;
  opacity: 0.9;
}

.contact-form__link {
  color: var(--verde);
  text-decoration: underline;
}

.contact-form__link:hover {
  opacity: 0.8;
}

.contact-form__submit {
  background: linear-gradient(45deg, var(--verde), var(--azul));
  color: var(--negro);
  font-weight: 600;
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
  margin-top: 1rem;
  position: relative;
  overflow: hidden;
}

.contact-form__submit::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.contact-form__submit:hover:not(:disabled)::before {
  width: 300px;
  height: 300px;
}

.contact-form__submit:hover:not(:disabled) {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 30px rgba(0, 255, 133, 0.4);
}

/* Estado del botón deshabilitado */
.contact-form__submit:disabled {
  cursor: not-allowed;
  opacity: 0.7;
  transform: none;
  box-shadow: none;
}

/* Indicador visual de carga en el botón */
.contact-form__submit:disabled::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-left: 8px;
  border: 2px solid transparent;
  border-top-color: var(--negro);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* RESPONSIVE - TABLET */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--padding-desktop);
  }

  .header__container {
    padding: 1rem var(--padding-desktop);
  }

  .hero__container,
  .services__container,
  .faq__container,
  .footer__container {
    padding: 0 var(--padding-desktop);
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .hero__subtitle {
    font-size: 1.4rem;
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .service-card__image-container {
    height: 280px;
  }

  .process__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer__main {
    grid-template-columns: 1fr 1fr;
    text-align: left;
  }

  .footer__brand {
    text-align: left;
  }

  .footer__nav {
    text-align: right;
  }

  .footer__nav-links {
    align-items: flex-end;
  }

  .footer__legal {
    justify-content: space-between;
  }

  .case-studies__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .comparison__header {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
  }

  .comparison__title {
    font-size: 2.5rem;
    margin-bottom: 0;
  }

  .comparison__cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* RESPONSIVE - DESKTOP */
@media (min-width: 1024px) {

  .header__nav {
    display: flex;
    position: static;
    background: none;
    flex-direction: row;
    gap: 2rem;
  }

  .header__menu-toggle {
    display: none;
  }

  .hero {
    min-height: 95vh;
  }

  .hero__title {
    font-size: 3rem;
  }

  .hero__subtitle {
    font-size: 1.6rem;
  }

  .hero__description {
    font-size: 1.2rem;
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }

  .service-card__image-container {
    height: 320px;
  }

  .service-card__title {
    font-size: 1.75rem;
  }

  .comparison__title {
    font-size: 3rem;
  }

  .comparison__title {
    font-size: 3rem;
  }

  .comparison__subtitle {
    font-size: 1.15rem;
  }

  .footer__main {
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
  }
}

/* RESPONSIVE - EXTRA LARGE */
@media (min-width: 1440px) {
  .hero:first-of-type {
    background-image: url('../img/fondo-principal.webp');
    background-size: 130%;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
  }

  .hero__title {
    font-size: 3.5rem;
  }

  .hero__subtitle {
    font-size: 1.8rem;
  }

  .services__title,
  .faq__title {
    font-size: 3rem;
  }
}

@media (min-width: 1680px) {
  .hero:first-of-type {
    background-size: cover;
  }
}