/* 
   SKIP LINK (ACCESIBILIDAD)
    */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: #000;
  color: #fff;
  padding: 10px 20px;
  z-index: 9999;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 5px 0;
  font-size: 1rem;
  transition: top 0.3s;
}
.skip-link:focus {
  top: 0;
}

:root {
  --color-principal: #1a7a50;
  --color-principal-hover: #145f3e;
  --color-fondo-claro: #F2F2F2;
  --color-texto-oscuro: #1a1a1a;
  --color-texto-suave: #595959;
  --color-negro: #000000;
  --color-blanco: #FFFFFF;
  --color-borde: #767676;
  --color-foco: #005fcc;
  --fuente-principal: 'Montserrat', sans-serif;
  --ancho-maximo: 1200px;
  --ancho-texto: 800px;
}


* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 18px;
}

body {
  font-family: var(--fuente-principal);
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-texto-oscuro);
  letter-spacing: 0.02em;
}

/* 
   ACCESIBILIDAD - Utilidades
    */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Foco visible mejorado (WCAG 2.4.7 AAA) */
:focus-visible {
  outline: 3px solid var(--color-foco);
  outline-offset: 3px;
  border-radius: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* 
   TIPOGRAFÍA
    */
h1, h2 {
  font-weight: 200;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.4;
}

h3 {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.4;
}

/* 
   COMPONENTES COMUNES
    */
.texto-verde {
  color: var(--color-principal);
}

.subtitulo,
.subtitulo-blanco {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
  text-align: center;
  display: block;
}

.subtitulo {
  color: var(--color-negro);
}

.subtitulo-blanco {
  color: var(--color-blanco);
}

/* Botones con tamaño mínimo de objetivo táctil (WCAG 2.5.5 AAA) */
.boton {
  display: inline-block;
  padding: 15px 40px;
  background-color: var(--color-principal);
  color: var(--color-blanco);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 700;
  text-transform: uppercase;
  transition: all 0.3s;
  border: 2px solid var(--color-principal);
  font-size: 1rem;
  min-height: 44px;
  min-width: 44px;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.05em;
}

.boton::before {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-principal-hover);
  transition: top 0.3s ease;
  z-index: -1;
}

.boton:hover::before {
  top: 0;
}

.boton:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(26, 122, 80, 0.4);
}

.boton-blanco {
  background-color: var(--color-negro);
  color: var(--color-blanco);
  border: 2px solid var(--color-negro);
  padding: 10px 30px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  font-weight: 700;
  display: inline-block;
}

.boton-blanco::before {
  background-color: #333;
}

.boton-blanco:hover {
  background-color: #333;
  border-color: var(--color-negro);
  color: var(--color-blanco);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
}

/* 
   HEADER
    */
header {
  background-color: transparent;
  padding: 20px 40px;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 100px;
  flex: 1;
}

.icono-menu {
  cursor: pointer;
  display: flex;
  align-items: center;
  z-index: 2100;
  background: transparent;
  border: 2px solid transparent;
  border-radius: 5px;
  padding: 6px;
  transition: border-color 0.3s;
  min-height: 44px;
  min-width: 44px;
}

.icono-menu:hover {
  border-color: rgba(255, 255, 255, 0.5);
}

.icono-menu img {
  width: 30px;
  height: 30px;
  filter: brightness(0) invert(1);
}

.header-logo {
  width: 50px;
  height: 50px;
  filter: brightness(0) invert(1);
}

header nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

header nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 30px;
}

header nav ul li {
  position: relative;
}

header nav ul li a {
  text-decoration: none;
  color: var(--color-blanco);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  transition: color 0.3s;
  display: flex;
  align-items: center;
  padding: 8px 4px;
  min-height: 44px;
}

header nav ul li a:hover {
  color: #a8e6c8;
  text-decoration: underline;
}

header nav ul li a[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* 
   SECCIÓN HERO
    */
.hero {
  background-image: url('../../public/imagenes/header.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 150px 20px 80px;
  text-align: center;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Overlay para mejorar contraste (WCAG 1.4.6 AAA) */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.55);
  z-index: 0;
}

.hero .contenedor {
  max-width: var(--ancho-maximo);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 20px;
  font-weight: 900;
  color: var(--color-blanco);
  line-height: 1.2;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-blanco);
  line-height: 1.8;
}

/* Formulario con etiquetas visibles (WCAG 1.3.1) */
.hero form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 75%;
  max-width: 560px;
  margin: 0 auto 30px;
  padding: 24px 28px;
  background-color: rgba(255, 255, 255, 0.97);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  text-align: left;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-texto-oscuro);
}

.form-group input {
  padding: 12px 16px;
  border: 2px solid var(--color-borde);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--fuente-principal);
  color: var(--color-texto-oscuro);
  background: var(--color-blanco);
  min-height: 44px;
  transition: border-color 0.3s;
}

.form-group input:focus {
  border-color: var(--color-foco);
  outline: 3px solid var(--color-foco);
  outline-offset: 2px;
}

.hero form button {
  padding: 14px 28px;
  background-color: var(--color-principal);
  color: var(--color-blanco);
  border: 2px solid var(--color-principal);
  border-radius: 50px;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  transition: background-color 0.3s;
  font-size: 1rem;
  min-height: 44px;
  font-family: var(--fuente-principal);
  letter-spacing: 0.05em;
  align-self: flex-start;
}

.hero form button:hover {
  background-color: var(--color-principal-hover);
}

.social-media {
  position: absolute;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
}

.social-media ul {
  display: flex;
  flex-direction: column;
  gap: 15px;
  list-style: none;
}

.social-media ul li img {
  width: 30px;
  height: 30px;
  transition: transform 0.3s;
  filter: brightness(0) invert(1);
  display: block;
}

.social-media ul li a:hover img {
  transform: scale(1.2);
}

/* 
   SECCIÓN FEATURES
    */
.features {
  padding: 80px 20px;
  max-width: var(--ancho-maximo);
  margin: 0 auto;
}

.features h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  font-weight: 200;
  line-height: 1.4;
  letter-spacing: 0.05em;
  text-align: center;
  color: var(--color-texto-oscuro);
}

.features > p {
  max-width: 900px;
  margin: 0 auto 40px auto;
  color: var(--color-texto-suave);
  line-height: 1.8;
  font-size: 1rem;
  text-align: center;
}

.features .contenedor {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 30px;
  align-items: start;
  max-width: var(--ancho-maximo);
  margin: 60px auto 50px;
  padding-bottom: 10px;
}

.features .contenedor article {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  text-align: center;
  padding: 40px 30px;
  background-color: var(--color-blanco);
  border-radius: 10px;
  border: 2px solid transparent;
  transition: all 0.3s;
}

.features .contenedor article:hover {
  border: 2px solid var(--color-borde);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
  transform: translateY(-5px);
}

.features .contenedor article img {
  width: 60px;
  height: 60px;
  opacity: 0.8;
  margin-bottom: 16px;
}

.features .contenedor article h3 {
  margin-bottom: 16px;
  color: var(--color-texto-oscuro);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.features .contenedor article p {
  color: var(--color-texto-suave);
  font-size: 0.95rem;
  line-height: 1.8;
}

.features > .boton {
  display: block;
  width: fit-content;
  margin: 0 auto;
  text-align: center;
  padding: 14px 45px;
  border-radius: 50px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

/* 
   SECCIÓN SKILLS
    */
.skills {
  padding: 80px 0;
}

.skills .contenedor {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  max-width: 100%;
  margin: 0;
  min-height: 600px;
}

.skills-text {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 60px 80px;
  text-align: left;
  grid-column: 2;
  grid-row: 1;
}

.skills-text .subtitulo {
  text-align: left;
  margin-bottom: 15px;
}

.skills-text h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  font-weight: 200;
  line-height: 1.4;
  text-align: left;
  color: var(--color-texto-oscuro);
}

.skills-text p {
  max-width: 100%;
  margin: 0 0 40px 0;
  color: var(--color-texto-suave);
  line-height: 1.8;
  text-align: left;
  font-size: 1rem;
}

.skills-right {
  display: contents;
}

.skills-right img {
  width: 100%;
  height: 100%;
  min-height: 600px;
  object-fit: cover;
  object-position: center;
  grid-column: 1;
  grid-row: 1 / 3;
}

.skills-content {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 0 80px 60px 80px;
  grid-column: 2;
  grid-row: 2;
}

.skills-content h3 {
  margin-bottom: 30px;
  text-align: left;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-texto-oscuro);
}

.skills-content ul {
  list-style: none;
  margin-bottom: 40px;
}

.skills-content ul li {
  margin-bottom: 25px;
  display: flex;
  align-items: center;
  gap: 15px;
}

.skills-content ul li span strong {
  min-width: 120px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-texto-oscuro);
  display: inline-block;
}

.barra-progreso {
  flex: 1;
  height: 14px;
  background-color: #ddd;
  border-radius: 7px;
  overflow: hidden;
  border: 1px solid var(--color-borde);
}

.barra-progreso__relleno {
  height: 100%;
  background-color: var(--color-principal);
  border-radius: 7px;
  width: 0;
  transition: width 0.6s;
}
.barra-progreso__relleno--75 {
  width: 75%;
}
.barra-progreso__relleno--95 {
  width: 95%;
}
.barra-progreso__relleno--87 {
  width: 87%;
}

.skills-content ul li > span:last-child {
  min-width: 45px;
  text-align: right;
  font-size: 0.95rem;
  color: var(--color-texto-suave);
  font-weight: 700;
}

.skills-content .boton {
  padding: 12px 35px;
  font-size: 0.85rem;
  width: fit-content;
}

/* 
   SECCIÓN GALLERY
    */
.gallery {
  padding: 80px 20px 0;
  max-width: var(--ancho-maximo);
  margin: 0 auto;
}

.contenedor-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin: 0 auto 20px;
  align-items: flex-start;
}

.gallery-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

.gallery-left .subtitulo {
  margin-bottom: 0;
  text-align: left;
}

.contenedor-gallery h2 {
  font-size: 2rem;
  text-align: left;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-texto-oscuro);
}

.contenedor-gallery > div {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contenedor-gallery > div p {
  text-align: left;
  color: var(--color-texto-suave);
  line-height: 1.8;
  margin: 0;
  font-size: 1rem;
}

.gallery nav {
  max-width: 900px;
  margin: 0 auto 20px;
}

.gallery nav ul {
  display: flex;
  justify-content: flex-start;
  gap: 20px;
  list-style: none;
}

.gallery nav ul li a {
  text-decoration: none;
  color: var(--color-texto-oscuro);
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 5px;
  transition: all 0.3s;
  font-size: 1rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border: 2px solid transparent;
}

.gallery nav ul li a:hover,
.gallery nav ul li a[aria-current="true"] {
  color: var(--color-principal);
  text-decoration: underline;
  border-color: var(--color-principal);
}

.gallery-media {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  grid-template-rows: 370px 370px;
  gap: 12px;
  padding: 0 0 60px;
}

.gallery-media__image {
  grid-column: 1;
  grid-row: 1 / 3;
  overflow: hidden;
}

.gallery-media__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gallery-media__figure-item {
  grid-column: 2;
  background-color: var(--color-fondo-claro);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
  min-width: 0;
  border: 1px solid var(--color-borde);
}

.gallery-media__figure-item img {
  width: 100%;
  flex: 1;
  min-height: 0;
  border-radius: 5px;
  object-fit: cover;
  display: block;
}

.gallery-media__figure-item figcaption {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-texto-oscuro);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  padding: 4px 0;
}

/* 
   SECCIÓN TESTIMONIOS
    */
.testimonials {
  text-align: center;
  padding: 100px 20px;
}

.testimonials blockquote {
  max-width: 900px;
  margin: 0 auto;
}

.testimonials blockquote p {
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-texto-oscuro);
  margin-bottom: 30px;
}

.testimonials blockquote footer {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-texto-oscuro);
}

/* 
   SECCIÓN CURSO DESTACADO
    */
.course {
  background-color: var(--color-principal);
  color: var(--color-blanco);
  padding: 0;
  position: relative;
}

.course .contenedor {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  max-width: 100%;
  margin: 0;
  min-height: 600px;
}

.course-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 80px;
  text-align: left;
}

.course-content .subtitulo-blanco {
  margin-bottom: 20px;
}

.course-content h2 {
  font-size: 2rem;
  margin-bottom: 25px;
  font-weight: 200;
  text-align: left;
  line-height: 1.3;
  color: var(--color-blanco);
}

.course-content p {
  text-align: left;
  margin-bottom: 35px;
  line-height: 1.8;
  font-size: 1rem;
  color: var(--color-blanco);
}

.course-content .boton-blanco {
  align-self: flex-start;
}

.course-image {
  width: 100%;
  height: 100%;
  min-height: 600px;
}

.course-image img {
  width: 100%;
  height: 100%;
  min-height: 600px;
  object-fit: cover;
  object-position: center;
}

.course-navigation {
  position: absolute;
  bottom: 30px;
  left: 30px;
  display: flex;
  gap: 15px;
}

.course-arrow {
  background-color: transparent;
  color: var(--color-blanco);
  border: 2px solid rgba(255, 255, 255, 0.6);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
}

.course-arrow:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: var(--color-blanco);
}

/* 
   SECCIÓN PRECIOS
    */
.pricing {
  padding: 80px 20px;
  max-width: var(--ancho-maximo);
  margin: 0 auto;
}

.pricing h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  line-height: 1.4;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 20px;
  text-align: center;
  color: var(--color-texto-oscuro);
}

.pricing > p {
  max-width: var(--ancho-texto);
  margin: 0 auto 50px auto;
  color: var(--color-texto-suave);
  text-align: center;
  font-size: 1rem;
  line-height: 1.8;
}

.pricing .contenedor {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

.pricing .contenedor article {
  border: 2px solid var(--color-borde);
  border-radius: 10px;
  background: var(--color-blanco);
  padding: 40px 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  transition: all 0.3s;
}

.pricing .contenedor article:hover {
  transform: translateY(-10px);
  box-shadow: 0 4px 24px rgba(26, 122, 80, 0.15);
  border-color: var(--color-principal);
}

.pricing .contenedor article h3 {
  margin-bottom: 20px;
  color: var(--color-texto-oscuro);
  font-size: 1.1rem;
}

.pricing .contenedor article > div {
  font-size: 0.9rem;
  color: var(--color-texto-suave);
  margin-bottom: 30px;
}

.pricing .contenedor article > div strong {
  display: block;
  font-size: 3rem;
  color: var(--color-principal);
  font-weight: 700;
  margin-bottom: 5px;
}

.pricing .contenedor article > div span {
  font-size: 0.9rem;
  color: var(--color-texto-suave);
}

.pricing .contenedor article ul {
  list-style: none;
  margin-bottom: 30px;
  text-align: left;
}

.pricing .contenedor article ul li {
  padding: 10px 0;
  color: var(--color-texto-suave);
  font-size: 1rem;
  border-bottom: 1px solid #eee;
}

.pricing .contenedor article ul li:last-child {
  border-bottom: none;
}

.pricing .contenedor article .boton {
  margin-top: auto;
}

.pricing .contenedor article:first-child .boton,
.pricing .contenedor article:last-child .boton {
  background-color: transparent;
  color: var(--color-negro);
  border-color: var(--color-negro);
}

.pricing .contenedor article:first-child .boton::before,
.pricing .contenedor article:last-child .boton::before {
  background-color: var(--color-negro);
}

.pricing .contenedor article:first-child .boton:hover,
.pricing .contenedor article:last-child .boton:hover {
  color: var(--color-blanco);
}

.pricing .contenedor article:nth-child(2) .boton {
  background-color: var(--color-principal);
  color: var(--color-blanco);
  border-color: var(--color-principal);
}

/* 
   SECCIÓN TESTIMONIO DESTACADO
    */
.testimonial-featured {
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  overflow: hidden;
  padding: 80px 20px 100px;
  background-image: url('../../public/imagenes/testimony.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  width: 100%;
  min-height: 100vh;
}

.testimonial-featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.65);
  z-index: 0;
}

.testimonial-featured h2 {
  font-size: 1.2rem;
  color: var(--color-blanco);
  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 0;
  max-width: 800px;
  align-self: flex-start;
  margin-left: auto;
  margin-right: auto;
  margin-top: 20px;
  text-transform: lowercase;
  position: relative;
  z-index: 1;
}

.testimonial-featured blockquote {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.testimonial-featured blockquote cite {
  font-weight: 700;
  font-size: 1.1rem;
  color: #a8e6c8;
  font-style: normal;
}

.testimonial-featured blockquote span {
  color: #cccccc;
  font-size: 0.9rem;
}

.testimonial-featured nav {
  position: relative;
  z-index: 1;
}

.testimonial-featured nav ul {
  display: flex;
  justify-content: center;
  gap: 20px;
  list-style: none;
  margin-top: 0;
}

.testimonial-featured nav ul li img {
  width: 30px;
  height: 30px;
  filter: brightness(0) invert(1);
}

/* 
   FOOTER
    */
footer {
  background-color: var(--color-blanco);
  color: var(--color-negro);
  padding: 60px 20px 20px;
  border-top: 2px solid var(--color-borde);
}

footer section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: var(--ancho-maximo);
  margin: 0 auto 40px auto;
  padding: 0 20px;
  align-items: center;
}

footer section > div:first-child {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

footer section > div:last-child {
  display: flex;
  justify-content: center;
  align-items: center;
}

footer h2 {
  color: var(--color-negro);
  text-align: left;
  font-size: 1.5rem;
  margin-bottom: 10px;
  font-weight: 700;
}

footer address {
  font-style: normal;
  line-height: 1.8;
  text-align: left;
  color: var(--color-negro);
}

footer address p {
  margin: 5px 0;
  font-size: 1rem;
}

footer address a {
  color: var(--color-negro);
  text-decoration: underline;
}

footer address a:hover {
  color: var(--color-principal);
}

footer img {
  width: 100%;
  max-width: 500px;
  border-radius: 10px;
}

footer nav ul {
  display: flex;
  gap: 15px;
  list-style: none;
  justify-content: flex-start;
}

footer nav ul li img {
  width: 30px;
  height: 30px;
}

footer small {
  display: block;
  text-align: center;
  color: var(--color-texto-suave);
  border-top: 1px solid var(--color-borde);
  padding-top: 20px;
  font-size: 0.85rem;
  line-height: 1.8;
}

footer small a {
  color: var(--color-principal);
  text-decoration: underline;
  margin-left: 12px;
}

/* 
   RESPONSIVE
    */
@media (width > 900px) {
  .icono-menu {
    display: none;
  }
}

@media (width <= 900px) {
  header {
    padding: 15px 20px;
    position: fixed;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
  }

  .header-left {
    gap: 20px;
  }

  header nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--color-principal);
    padding-top: 80px;
    z-index: 2050;
    transition: left 0.3s ease;
    overflow-y: auto;
  }

  header nav.nav-abierto {
    left: 0;
  }

  header nav ul {
    flex-direction: column;
    width: 100%;
    align-items: center;
    gap: 24px;
    padding: 20px;
  }

  header nav ul li a {
    font-size: 1.1rem;
    font-weight: 700;
    padding: 12px 0;
    text-align: center;
    display: block;
    min-height: 44px;
  }

  .hero {
    padding: 120px 20px 40px;
    min-height: 80vh;
  }

  .hero .contenedor {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }

  .hero h1 {
    font-size: 1.8rem;
    margin-bottom: 10px;
  }

  .hero p {
    font-size: 1rem;
    margin-bottom: 20px;
    max-width: 90%;
  }

  .hero form {
    width: 90%;
    max-width: 400px;
    margin: 0 auto 20px auto;
  }

  .social-media {
    position: static;
    margin: 20px auto 0;
  }

  .social-media ul {
    flex-direction: row;
    gap: 20px;
    justify-content: center;
  }

  .features .contenedor {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .features .contenedor article {
    padding: 30px 20px;
  }

  .skills .contenedor {
    display: flex;
    flex-direction: column;
  }

  .skills-text {
    padding: 40px 20px;
    text-align: center;
    order: 1;
    grid-column: auto;
    grid-row: auto;
  }

  .skills-text .subtitulo,
  .skills-text h2,
  .skills-text p {
    text-align: center;
  }

  .skills-right {
    order: 2;
    display: flex;
    flex-direction: column;
    min-height: auto;
  }

  .skills-right img {
    height: 250px;
    min-height: 250px;
    max-height: 250px;
    grid-column: auto;
    grid-row: auto;
  }

  .skills-content {
    padding: 30px 20px;
    grid-column: auto;
    grid-row: auto;
  }

  .contenedor-gallery {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 0 20px;
  }

  .gallery-left .subtitulo {
    text-align: center;
  }

  .contenedor-gallery h2 {
    text-align: center;
  }

  .contenedor-gallery > div p {
    text-align: center;
  }

  .gallery nav ul {
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
  }

  .gallery nav ul li a {
    font-size: 0.9rem;
    padding: 8px 15px;
  }

  .gallery-media {
    grid-template-columns: 1fr;
    grid-template-rows: 300px auto auto;
  }

  .gallery-media__image {
    grid-column: 1;
    grid-row: 1;
  }

  .gallery-media__figure-item {
    grid-column: 1;
    grid-row: auto;
  }

  .testimonials {
    padding: 60px 20px;
  }

  .testimonials blockquote p {
    font-size: 1.3rem;
  }

  .testimonial-featured {
    min-height: 70vh;
    padding: 60px 20px 80px;
  }

  .testimonial-featured h2 {
    font-size: 1rem;
  }

  .course .contenedor {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .course-content {
    padding: 40px 20px;
    text-align: center;
    order: 2;
  }

  .course-content h2,
  .course-content p {
    text-align: center;
  }

  .course-content .boton-blanco {
    align-self: center;
  }

  .course-image {
    min-height: 300px;
    order: 1;
  }

  .course-image img {
    min-height: 300px;
  }

  .course-navigation {
    bottom: 15px;
    left: 15px;
  }

  .course-arrow {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .pricing h2 {
    font-size: 1.7rem;
  }

  .pricing .contenedor {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .pricing .contenedor article {
    padding: 30px 20px;
  }

  footer {
    padding: 40px 20px 20px;
  }

  footer section {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  footer section > div:first-child {
    align-items: center;
    text-align: center;
  }

  footer section > div:last-child {
    order: -1;
  }

  footer h2 {
    text-align: center;
  }

  footer address {
    text-align: center;
  }

  footer nav ul {
    justify-content: center;
  }

  footer img {
    max-width: 100%;
  }
}

/* 
   MODO MOVIMIENTO REDUCIDO (WCAG 2.3.3 AAA)
    */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 
   MODO ALTO CONTRASTE (WCAG 1.4.6 AAA)
    */
@media (prefers-contrast: more) {
  :root {
    --color-principal: #005c30;
    --color-texto-suave: #333333;
    --color-borde: #333333;
  }

  .boton {
    border-width: 3px;
  }
}