:root {
  --verde: #153e35;
  --verde-medio: #287457;
  --lima: #dbed91;
  --crema: #f5f3eb;
  --texto: #203c34;
  --gris: #52645b;
  --borde: #d9dfd5;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--texto);
  background: #fffef9;
  line-height: 1.65;
}
a { color: inherit; }
button, input { font: inherit; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: default; }
:focus-visible { outline: 3px solid #bf680c; outline-offset: 5px; }
[hidden] { display: none !important; }
.contenedor { width: min(1160px, 90%); margin-inline: auto; }
.seccion { padding-block: 88px; }
section[id] { scroll-margin-top: 25px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; }
h1 { font-size: clamp(3.5rem, 6.8vw, 6.3rem); letter-spacing: -5px; margin-bottom: 26px; }
h2 { font-size: clamp(2.1rem, 4vw, 3.5rem); letter-spacing: -2px; margin-bottom: 25px; }
h3 { font-size: 1.25rem; }
p { color: var(--gris); }
.etiqueta { font-size: .72rem; font-weight: 800; letter-spacing: 2px; margin-bottom: 22px; }
.nota { font-size: .88rem; margin-top: 22px; }
.introduccion { max-width: 680px; }
.saltar { position: fixed; top: -100px; left: 12px; padding: 12px; background: white; z-index: 100; }
.saltar:focus { top: 10px; }

.cabecera { position: sticky; top: 0; background: #fffef9; z-index: 20; border-bottom: 1px solid var(--borde); }
.navegacion { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.marca { display: inline-flex; align-items: center; gap: 6px; font-size: .9rem; font-weight: 900; text-decoration: none; letter-spacing: -.4px; }
.marca > span:last-child { font-weight: 400; }
.marca-icono { font-size: 2.7rem; line-height: 1; }
nav { display: flex; align-items: center; gap: 24px; }
nav a { text-decoration: none; font-size: .82rem; font-weight: 600; }
nav a:hover, .enlace:hover { text-decoration: underline; }
.menu-boton { display: none; }
.boton { display: inline-flex; justify-content: center; align-items: center; gap: 24px; padding: 15px 23px; border: 1px solid var(--verde); border-radius: 7px; background: var(--verde); color: white; font-weight: 700; font-size: .9rem; text-decoration: none; transition: background .2s, transform .2s; }
.boton:hover { background: #27624e; transform: translateY(-2px); }
.boton.pequeno { padding: 11px 16px; font-size: .76rem; }
.enlace { font-weight: 700; font-size: .9rem; text-underline-offset: 5px; }

.hero { padding: 75px 0 70px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.12fr 1fr; gap: 48px; align-items: center; }
h1 em { font-family: Georgia, serif; color: var(--verde-medio); font-weight: 400; }
.hero-texto { max-width: 490px; font-size: 1.06rem; }
.acciones { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin: 30px 0; }
.nota-hero { font-size: .75rem; }
.ilustracion { position: relative; height: 460px; border-radius: 48% 48% 18px 18px; background: #e7ecd9; overflow: hidden; }
.orbita { position: absolute; border: 1px solid #c0ceb1; border-radius: 50%; width: 360px; height: 360px; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.orbita-dos { width: 460px; height: 460px; }
.sello { position: absolute; top: 35px; left: 35px; font-size: .65rem; letter-spacing: 1.5px; transform: rotate(-8deg); }
.sello strong { font-family: Georgia, serif; font-style: italic; font-size: 1.2rem; letter-spacing: 0; }
.canecas { position: absolute; bottom: 73px; left: 6%; width: 88%; display: flex; align-items: end; gap: 12px; }
.caneca { position: relative; width: 33.333%; height: 192px; border-radius: 8px 8px 27px 27px; box-shadow: 8px 13px 0 #153e3512; display: flex; flex-direction: column; align-items: center; justify-content: center; transform: rotate(-5deg); }
.caneca::before { content: ""; position: absolute; width: 110%; height: 15px; background: inherit; border: 1px solid #153e3522; top: -10px; border-radius: 7px; }
.caneca span { font-size: 3.5rem; line-height: 1.3; }
.caneca b { font-size: .72rem; letter-spacing: 1px; }
.caneca small { font-size: .58rem; margin-top: 5px; }
.caneca.blanca { background: #fffdf4; color: var(--verde); }
.caneca.verde { background: #43865a; color: white; height: 230px; transform: rotate(3deg); z-index: 2; }
.caneca.negra { background: #243e35; color: white; transform: rotate(8deg); }
.hoja { position: absolute; width: 35px; height: 65px; background: #69965d; border-radius: 100% 0 100% 0; }
.hoja-uno { top: 90px; right: 70px; transform: rotate(20deg); }
.hoja-dos { top: 135px; right: 45px; width: 24px; height: 45px; transform: rotate(70deg); }
.pie-ilustracion { position: absolute; bottom: 24px; width: 100%; text-align: center; letter-spacing: 2px; font-size: .62rem; font-weight: 800; }
.franja { background: var(--lima); display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 35px; padding: 19px; font-size: .7rem; font-weight: 800; letter-spacing: 1.5px; }

.titulo-seccion { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; margin-bottom: 30px; }
.titulo-seccion > p { max-width: 440px; }
.tarjetas-colores { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tarjeta-color { border: 1px solid var(--borde); border-radius: 14px; padding: 30px; }
.tarjeta-color h3 { font-size: 1.8rem; margin-bottom: 6px; }
.numero { display: inline-block; margin-bottom: 25px; font-size: .8rem; opacity: .7; }
.subtitulo { font-size: .85rem; }
.tarjeta-color ul { padding-left: 19px; font-size: .92rem; min-height: 150px; }
.tarjeta-color li { margin-bottom: 9px; }
.consejo { padding-top: 18px; border-top: 1px solid #849b7c55; font-size: .83rem; margin-bottom: 0; }
.tarjeta-blanca { background: #f4f4ed; }
.tarjeta-verde { background: #e7efdb; }
.tarjeta-negra { background: var(--verde); color: white; }
.tarjeta-negra p { color: #e0e9df; }
.seccion-crema { background: var(--crema); }

.buscador { display: block; max-width: 650px; margin-top: 30px; }
.buscador span { display: block; font-size: .82rem; font-weight: 700; margin-bottom: 8px; }
.buscador input { width: 100%; padding: 17px 20px; border: 1px solid #a5b3a5; border-radius: 8px; background: #fffef9; color: var(--texto); }
.filtros { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.filtro { padding: 8px 19px; border: 1px solid #a5b3a5; border-radius: 24px; background: transparent; color: var(--verde); }
.filtro.activo { background: var(--verde); color: white; border-color: var(--verde); }
.residuos-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.residuo { background: #fffef9; border: 1px solid var(--borde); border-radius: 10px; padding: 23px; }
.residuo h3 { margin-block: 15px 10px; font-size: 1.1rem; }
.residuo p { font-size: .88rem; margin-bottom: 0; }
.insignia { display: inline-block; border-radius: 5px; padding: 3px 9px; font-size: .7rem; font-weight: 800; background: #e9e9e2; }
.insignia.verde { background: #deebc5; }
.insignia.negra { background: #263d34; color: white; }
.insignia.especial { background: #f9e6bd; color: #62450d; }
.vacio { grid-column: 1 / -1; padding: 25px; }

.pasos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.pasos article { border-top: 1px solid var(--borde); padding-top: 25px; }
.pasos span { display: grid; place-items: center; width: 38px; height: 38px; background: var(--lima); border-radius: 50%; margin-bottom: 25px; font-weight: 800; }
.pasos p { font-size: .9rem; }
.comunidad { background: var(--verde); color: white; border-radius: 18px; padding: 60px; display: grid; grid-template-columns: .65fr 1.35fr; align-items: center; gap: 60px; }
.comunidad p { color: #d6e5d7; }
.comunidad .enlace { color: var(--lima); }
.comunidad-simbolo { font-size: 15rem; color: var(--lima); text-align: center; line-height: 1; }
.especiales-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; margin-block: 40px; }
.especiales-grid article > span { font-size: 1.8rem; display: inline-block; margin-bottom: 20px; }
.especiales-grid p { font-size: .9rem; }
.llamado { padding: 28px; background: #e9eedf; border-radius: 12px; display: flex; justify-content: space-between; align-items: center; gap: 25px; }
.llamado p { margin-bottom: 0; max-width: 660px; font-size: .9rem; }
.llamado .boton { flex-shrink: 0; }
.dos-columnas { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; }
.errores article { border-bottom: 1px solid var(--borde); margin-bottom: 23px; padding-bottom: 12px; }
.errores h3 { font-size: 1.1rem; }
.errores p { font-size: .92rem; }

.quiz { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.quiz-panel { padding: 35px; border: 1px solid var(--borde); border-radius: 15px; background: #f2f5e9; }
.quiz-panel h3 { font-size: 1.4rem; }
#quiz-opciones { display: grid; gap: 10px; }
.opcion { text-align: left; padding: 12px 16px; border: 1px solid #acb7a4; border-radius: 7px; background: #fffef9; color: var(--verde); }
.opcion:hover:not(:disabled) { background: #e4edcf; }
.opcion.correcta { background: #d5e9c4; border-color: #3d7542; }
.opcion.incorrecta { background: #f4dfd5; border-color: #a35030; }
#quiz-mensaje { font-size: .9rem; margin-top: 20px; }
.preguntas { padding-top: 20px; max-width: 900px; }
details { border-bottom: 1px solid var(--borde); padding: 21px 0; }
summary { cursor: pointer; font-weight: 700; padding-right: 20px; }
details p { margin: 15px 0 0; font-size: .94rem; }
.fuentes { background: var(--crema); }
.fuentes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.fuentes-grid a { padding: 22px; border: 1px solid var(--borde); border-radius: 8px; text-decoration: none; }
.fuentes-grid a:hover { border-color: var(--verde); }
.fuentes-grid strong, .fuentes-grid span { display: block; }
.fuentes-grid span { font-size: .85rem; color: var(--gris); margin-top: 10px; }
footer { background: var(--verde); color: white; padding: 30px 0; }
.pie { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.pie p { color: #d6e5d7; font-size: .8rem; margin: 0; }
.pie > a:last-child { font-size: .8rem; }

@media (max-width: 1000px) {
  nav { gap: 13px; }
  nav a { font-size: .73rem; }
  nav .pequeno { display: none; }
  .hero-grid { gap: 25px; }
  h1 { letter-spacing: -3px; }
  .ilustracion { height: 400px; }
  .tarjeta-color { padding: 22px; }
  .pasos, .especiales-grid { grid-template-columns: repeat(2, 1fr); }
  .comunidad { padding: 40px; gap: 30px; }
  .comunidad-simbolo { font-size: 11rem; }
  .dos-columnas { gap: 45px; }
}

@media (max-width: 720px) {
  html { scroll-padding-top: 85px; }
  .seccion { padding-block: 58px; }
  .navegacion { min-height: 72px; flex-wrap: wrap; }
  .menu-boton { display: block; border: 1px solid var(--borde); border-radius: 6px; padding: 7px 13px; color: var(--verde); background: transparent; }
  nav { display: none; width: 100%; flex-direction: column; align-items: stretch; padding-bottom: 22px; gap: 15px; }
  nav.abierto { display: flex; }
  nav a { font-size: .95rem; }
  nav .pequeno { display: inline-flex; }
  .hero { padding-block: 45px; }
  .hero-grid, .titulo-seccion, .dos-columnas, .quiz, .comunidad { grid-template-columns: 1fr; }
  .hero-grid { gap: 30px; }
  h1 { font-size: clamp(3.5rem, 12vw, 5rem); }
  h2 { letter-spacing: -1.5px; }
  .hero-texto { font-size: 1rem; }
  .ilustracion { width: 100%; max-width: 460px; margin-inline: auto; height: 390px; }
  .franja { gap: 14px; font-size: .6rem; }
  .franja span:nth-child(even) { display: none; }
  .titulo-seccion { gap: 0; }
  .tarjetas-colores, .fuentes-grid { grid-template-columns: 1fr; }
  .tarjeta-color ul { min-height: auto; }
  .residuos-grid { grid-template-columns: repeat(2, 1fr); }
  .comunidad { padding: 30px; gap: 10px; }
  .comunidad-simbolo { font-size: 6rem; text-align: left; }
  .llamado { flex-direction: column; align-items: start; }
  .quiz { gap: 20px; }
  .quiz-panel { padding: 25px; }
  .dos-columnas { gap: 25px; }
}

@media (max-width: 420px) {
  .residuos-grid, .pasos, .especiales-grid { grid-template-columns: 1fr; }
  .acciones { align-items: start; flex-direction: column; gap: 20px; }
  .ilustracion { height: 350px; }
  .caneca { height: 155px; }
  .caneca.verde { height: 190px; }
  .caneca small { font-size: .5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
/* LOGO */
.marca-nueva {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-simbolo {
  display: block;
  width: 54px;
  height: 54px;
  flex-shrink: 0;
}

.marca-nueva .logo-texto {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.logo-texto strong {
  display: block;
  color: var(--verde);
  font-size: 1.4rem;
  line-height: 1;
  font-weight: 850;
  letter-spacing: -1px;
}

.logo-texto strong span {
  color: #387956;
  font-weight: 500;
}

.logo-texto small {
  color: var(--gris);
  font-size: .49rem;
  font-weight: 750;
  letter-spacing: 1.6px;
  line-height: 1.4;
}

/* FOTO PRINCIPAL */
.foto-portada {
  position: relative;
  isolation: isolate;
  width: 100%;
  height: 510px;
  margin: 0;
  overflow: hidden;
  border-radius: 140px 20px 20px 20px;
  background: #dce6d7;
  box-shadow: 16px 16px 0 #e7ecd9;
}

.foto-portada > img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
}

.foto-portada::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgb(8 33 27 / 8%) 30%,
    rgb(8 33 27 / 92%) 100%
  );
}

.foto-etiqueta {
  position: absolute;
  top: 30px;
  right: 22px;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border-radius: 30px;
  background: #fffef9;
  color: var(--verde);
  font-size: .6rem;
  font-weight: 800;
  letter-spacing: 1.2px;
}

.punto-verde {
  width: 8px;
  height: 8px
}
/* Evita que las imágenes desborden sus contenedores */
img {
  display: block;
  max-width: 100%;
  height: auto;
}

figure {
  min-width: 0;
  max-width: 100%;
}

/* Sección de comunidad: fotografía y texto */
.comunidad {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 40px;
  padding: 40px;
}

.comunidad > * {
  min-width: 0;
}

.comunidad figure {
  width: 100%;
  margin: 0;
}

.comunidad img {
  width: 100%;
  max-width: 100%;
  height: 320px;
  object-fit: cover;
  object-position: center;
  border-radius: 12px;
}

.comunidad figcaption {
  margin-top: 12px;
  color: #d6e5d7;
  font-size: 0.75rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.comunidad h2 {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  overflow-wrap: break-word;
}

.comunidad p {
  overflow-wrap: break-word;
}

/* Foto principal */
.foto-portada {
  width: 100%;
  min-width: 0;
  margin: 0;
}

.foto-portada > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-grid > * {
  min-width: 0;
}

/* Tabletas y celulares */
@media (max-width: 800px) {
  .comunidad {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 28px;
  }

  .comunidad img {
    height: 280px;
  }
}

@media (max-width: 480px) {
  .comunidad {
    padding: 22px;
    border-radius: 14px;
  }

  .comunidad img {
    height: 220px;
  }

  .comunidad h2 {
    font-size: 1.9rem;
    letter-spacing: -1px;
  }
}