/* La Biblia de la Supervivencia — "expediente de campo"
   Carbón + papel manila + sello rojo + ámbar de alerta. El verde queda solo para comprar. */
:root {
  --carbon: #14110e;
  --carbon-2: #1d1914;
  --carbon-3: #2a241c;
  --papel: #efe5cf;
  --papel-2: #e4d6b8;
  --tinta: #241d15;
  --tinta-suave: #5a4c3a;
  --ambar: #f5b82e;
  --rojo: #c4271c;
  --mostaza: #a27607;
  --verde: #1fb35a;
  --verde-osc: #148a43;
  --texto: #f3ecdf;
  --texto-suave: #c8bda8;
  --radio: 14px;
  --sombra: 0 18px 40px rgba(0, 0, 0, 0.45);
  --display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --cuerpo: "Libre Franklin", system-ui, sans-serif;
  --maquina: "Special Elite", "Courier New", monospace;
}

*,
*::before,
*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--carbon);
  color: var(--texto);
  font-family: var(--cuerpo);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { margin: 0; line-height: 1.02; text-wrap: balance; }
h2 { font-family: var(--display); font-weight: 900; font-size: clamp(36px, 7vw, 60px); text-transform: uppercase; letter-spacing: 0.005em; }
h3 { font-family: var(--cuerpo); font-weight: 800; font-size: 19px; line-height: 1.25; }
p { margin: 0 0 14px; text-wrap: pretty; }
strong { font-weight: 800; }
a { color: inherit; }

.envoltura { width: min(1120px, 100%); margin: 0 auto; padding: 0 20px; }
.envoltura--angosta { width: min(720px, 100%); }
.centrado { text-align: center; }

/* ---------- piezas ---------- */
.cinta { background: var(--rojo); color: #fff; overflow: hidden; white-space: nowrap; font-family: var(--maquina); font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase; }
.cinta__pista { display: inline-flex; gap: 48px; padding: 8px 0; animation: cinta 26s linear infinite; }
.cinta__pista span::before { content: "■"; margin-right: 14px; font-size: 9px; vertical-align: 2px; opacity: 0.7; }
@keyframes cinta { to { transform: translateX(-50%); } }

.sello {
  display: inline-block;
  font-family: var(--maquina);
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 14px 5px;
  border: 2px solid currentColor;
  transform: rotate(-1.5deg);
  margin: 0 0 18px;
}
.sello--rojo { color: #ff6a5c; background: rgba(196, 39, 28, 0.12); }
.sello--verde { color: #7ee2a3; background: rgba(31, 179, 90, 0.12); font-size: 16px; }

.antetitulo { font-family: var(--maquina); color: var(--ambar); text-transform: uppercase; letter-spacing: 0.14em; font-size: 14px; margin-bottom: 12px; }
.antetitulo--tinta { color: var(--rojo); }
.resalte { color: var(--ambar); }
.resalte--oscuro { color: #fff3c9; }
.tinta { color: var(--tinta); }
.tachado { display: block; color: var(--rojo); }
.subrayado { background: linear-gradient(transparent 62%, rgba(245, 184, 46, 0.7) 62%); padding: 0 4px; }

.boton {
  --brillo: -60%;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 60px;
  padding: 16px 30px;
  border-radius: 12px;
  background: linear-gradient(180deg, #27c868, var(--verde) 60%, var(--verde-osc));
  color: #fff;
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(21px, 5.6vw, 26px);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  text-wrap: balance;
  text-align: center;
  line-height: 1.05;
  box-shadow: 0 6px 0 #0d6a33, 0 18px 34px rgba(31, 179, 90, 0.35);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}
.boton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, 0.45) 50%, transparent 65%);
  transform: translateX(var(--brillo));
  animation: brillo 3.4s ease-in-out infinite;
}
@keyframes brillo { 0%, 55% { transform: translateX(-120%); } 100% { transform: translateX(120%); } }
.boton:hover { transform: translateY(-2px); box-shadow: 0 8px 0 #0d6a33, 0 22px 40px rgba(31, 179, 90, 0.45); }
.boton:active { transform: translateY(4px); box-shadow: 0 2px 0 #0d6a33, 0 10px 20px rgba(31, 179, 90, 0.3); }
.boton:focus-visible { outline: 3px solid var(--ambar); outline-offset: 4px; }
.boton--grande { width: 100%; font-size: 28px; min-height: 72px; }
.boton--chico { min-height: 48px; padding: 10px 18px; font-size: 20px; box-shadow: 0 4px 0 #0d6a33; }

.js .revelar { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.js .revelar.visto { opacity: 1; transform: none; }
.entra { animation: entra 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) both; animation-delay: calc(var(--i, 0) * 0.09s + 0.05s); }
@keyframes entra { from { opacity: 0; transform: translateY(18px); } }

/* ---------- 1. héroe ---------- */
.heroe { position: relative; padding: 48px 0 56px; overflow: hidden; isolation: isolate; }
.heroe__fondo {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 70% 35%, rgba(245, 150, 40, 0.28), transparent 55%),
    linear-gradient(180deg, rgba(20, 17, 14, 0.55), var(--carbon) 92%),
    url("../img/fogo-refugio.jpg") center 30% / cover no-repeat;
  filter: saturate(0.9);
}
.heroe__fondo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.12) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}
.heroe__rejilla { display: grid; gap: 26px; }
.heroe h1 {
  font-family: var(--display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(58px, 15vw, 118px);
  line-height: 0.88;
  letter-spacing: -0.005em;
  text-shadow: 0 6px 30px rgba(0, 0, 0, 0.6);
}
.h1__pequeno { display: block; font-size: 0.42em; letter-spacing: 0.12em; color: var(--texto-suave); }
.heroe h1 em { font-style: normal; color: var(--ambar); display: block; }
.heroe__promesa { font-size: clamp(22px, 4.6vw, 30px); line-height: 1.2; margin: 18px 0 12px; font-weight: 500; }
.heroe__promesa strong { color: #fff; box-shadow: inset 0 -0.4em 0 rgba(196, 39, 28, 0.55); }
.heroe__bajada { color: var(--texto-suave); max-width: 34em; }
.valoracion { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 15px; color: var(--texto-suave); }
.estrellas { color: #00b67a; background: #00b67a; color: #fff; padding: 1px 6px 2px; letter-spacing: 3px; font-size: 15px; border-radius: 3px; }
.heroe__producto { position: relative; margin: 0 auto; width: min(100%, 360px); }
.heroe__producto img { width: 100%; filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.7)); animation: flota 6s ease-in-out infinite; }
@keyframes flota { 50% { transform: translateY(-8px); } }
.etiqueta-precio {
  position: absolute;
  right: -14px;
  bottom: -10px;
  display: grid;
  justify-items: center;
  width: 112px;
  height: 112px;
  align-content: center;
  border-radius: 50%;
  background: var(--rojo);
  color: #fff;
  transform: rotate(-10deg);
  box-shadow: var(--sombra), inset 0 0 0 5px rgba(255, 255, 255, 0.25);
  font-family: var(--display);
  line-height: 1;
}
.etiqueta-precio__antes { font-size: 18px; text-decoration: line-through; opacity: 0.8; }
.etiqueta-precio__hoy { font-size: 34px; font-weight: 900; }
.etiqueta-precio__nota { font-family: var(--maquina); font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; }
.heroe__cta { display: grid; gap: 12px; }
.garantias { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; list-style: none; margin: 0; padding: 0; font-size: 14px; color: var(--texto-suave); }
.garantias li::before { content: "✓"; color: var(--verde); font-weight: 800; margin-right: 6px; }

/* ---------- secciones ---------- */
.seccion { padding: 72px 0; position: relative; }
.seccion--oscura { background: var(--carbon-2); }
.seccion--papel {
  background: var(--papel);
  color: var(--tinta);
  background-image: radial-gradient(circle at 12% 18%, rgba(140, 100, 40, 0.12), transparent 40%), radial-gradient(circle at 88% 82%, rgba(140, 100, 40, 0.16), transparent 45%);
}
.seccion--mostaza { background: var(--mostaza); color: #fff; }
.seccion--papel p { color: var(--tinta-suave); }

/* 2. línea de tiempo */
.linea { list-style: none; margin: 36px 0 28px; padding: 0 0 0 22px; border-left: 3px dashed rgba(245, 184, 46, 0.5); display: grid; gap: 22px; }
.linea__paso { position: relative; display: grid; grid-template-columns: 112px 1fr; gap: 16px; align-items: center; background: var(--carbon-3); border-radius: var(--radio); padding: 12px; }
.linea__paso::before { content: ""; position: absolute; left: -33px; top: 50%; width: 18px; height: 18px; border-radius: 50%; background: var(--rojo); box-shadow: 0 0 0 5px rgba(196, 39, 28, 0.25); transform: translateY(-50%); }
.linea__paso img { width: 112px; height: 112px; object-fit: cover; border-radius: 10px; filter: saturate(0.75) contrast(1.05); }
.linea__paso p { margin: 4px 0 0; color: var(--texto-suave); font-size: 15px; }
.linea__hora { font-family: var(--maquina); color: var(--ambar); font-size: 14px; letter-spacing: 0.12em; text-transform: uppercase; }
.nota-real { border-left: 4px solid var(--rojo); padding: 6px 0 6px 16px; color: var(--texto-suave); max-width: 40em; }
.nota-real strong { color: var(--texto); }

/* 3. expediente */
.dos-columnas { display: grid; gap: 36px; }
.dos-columnas > * { min-width: 0; }
.expediente { position: relative; background: #fbf7ee; padding: 14px 14px 46px; box-shadow: 0 22px 40px rgba(60, 40, 10, 0.3); transform: rotate(-2deg); max-width: 420px; margin: 0 auto; }
.expediente img { aspect-ratio: 4 / 4.4; object-fit: cover; width: 100%; }
.expediente__pie { position: absolute; left: 16px; bottom: 12px; font-family: var(--maquina); font-size: 14px; color: var(--tinta-suave); }
.expediente__clip { position: absolute; left: 36px; top: -22px; width: 26px; height: 70px; border: 5px solid #9aa1a8; border-radius: 14px; z-index: 2; }
.lista-titulo { margin: 22px 0 10px; color: var(--tinta); }
.lista-check { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.lista-check li { position: relative; padding-left: 34px; color: var(--tinta); }
.lista-check li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 24px; height: 24px; border-radius: 6px; background: var(--verde); color: #fff; font-weight: 800; font-size: 15px; display: grid; place-items: center; }

/* 4. habilidades */
.tarjetas-foto { display: grid; gap: 18px; margin-top: 34px; }
.tarjetas-foto figure { margin: 0; background: rgba(0, 0, 0, 0.18); border-radius: var(--radio); overflow: hidden; }
.tarjetas-foto img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.tarjetas-foto figcaption { font-family: var(--display); font-weight: 800; font-size: 26px; text-transform: uppercase; padding: 14px 16px 16px; line-height: 1.05; }

/* 5. manuales */
.manuales { display: grid; gap: 18px; margin: 36px 0; }
.manual { display: grid; grid-template-columns: 120px 1fr; gap: 18px; align-items: start; background: var(--carbon-3); border: 1px solid rgba(255, 255, 255, 0.06); border-radius: var(--radio); padding: 18px; }
.manual img { width: 120px; height: 160px; object-fit: contain; filter: drop-shadow(0 12px 16px rgba(0, 0, 0, 0.5)); }
.manual__num { font-family: var(--maquina); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ambar); }
.manual h3 { margin: 6px 0 8px; }
.manual ul { margin: 0 0 10px; padding-left: 18px; color: var(--texto-suave); font-size: 15px; line-height: 1.5; }
.manual__valor { font-family: var(--display); font-weight: 800; font-size: 20px; color: var(--texto-suave); }
.manual--bono { border-color: rgba(31, 179, 90, 0.45); background: linear-gradient(160deg, rgba(31, 179, 90, 0.1), var(--carbon-3) 60%); }
.manual--bono .manual__valor { color: #7ee2a3; }
.manual--bono .manual__valor s { color: var(--texto-suave); margin-right: 6px; }
.bonos-cabecera { text-align: center; margin-top: 10px; }
.bonos-cabecera p { color: var(--texto-suave); margin: 0; }

/* 6. pasos */
.pasos { list-style: none; margin: 36px 0 0; padding: 0; display: grid; gap: 16px; counter-reset: paso; }
.pasos li { background: #fbf7ee; border-radius: var(--radio); padding: 22px 20px; box-shadow: 0 10px 24px rgba(60, 40, 10, 0.12); }
.pasos h3 { color: var(--tinta); margin: 10px 0 6px; }
.pasos p { margin: 0; font-size: 15px; }
.pasos__n { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: var(--tinta); color: var(--ambar); font-family: var(--display); font-weight: 900; font-size: 26px; }

/* 7. opiniones */
.opiniones { display: grid; gap: 16px; margin-top: 32px; }
.opinion { margin: 0; background: var(--papel); color: var(--tinta); border-radius: 4px; padding: 22px 20px 18px; box-shadow: var(--sombra); position: relative; }
.opinion:nth-child(odd) { transform: rotate(-0.6deg); }
.opinion:nth-child(even) { transform: rotate(0.5deg); }
.opinion::before { content: "★★★★★"; display: block; color: #e0a100; letter-spacing: 3px; margin-bottom: 8px; }
.opinion p { color: var(--tinta); font-size: 16px; }
.opinion footer { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 15px; }
.inicial { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--tinta); color: var(--ambar); font-family: var(--display); font-weight: 900; font-size: 20px; }

/* 8. oferta */
.seccion--oferta { background: radial-gradient(ellipse at 50% 0%, #3a2f20, var(--carbon) 70%); }
.oferta { position: relative; background: var(--papel); color: var(--tinta); border-radius: 6px; padding: 36px 22px 28px; text-align: center; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6); outline: 2px dashed rgba(36, 29, 21, 0.35); outline-offset: -12px; }
.oferta__sello { position: absolute; top: -18px; right: -6px; font-family: var(--maquina); font-size: 16px; letter-spacing: 0.1em; text-transform: uppercase; color: #1f7a3a; border: 3px solid #1f7a3a; padding: 4px 12px; transform: rotate(9deg); background: rgba(239, 229, 207, 0.9); }
.oferta__img { width: min(420px, 100%); margin: 14px auto 6px; filter: drop-shadow(0 18px 24px rgba(60, 40, 10, 0.35)); }
.recibo { list-style: none; margin: 10px 0 18px; padding: 14px 0; border-top: 2px dashed rgba(36, 29, 21, 0.3); border-bottom: 2px dashed rgba(36, 29, 21, 0.3); font-family: var(--maquina); font-size: 15px; text-align: left; }
.recibo li { display: flex; justify-content: space-between; gap: 12px; padding: 4px 0; color: var(--tinta); }
.recibo li span:last-child { white-space: nowrap; }
.recibo__total { margin-top: 6px; padding-top: 10px !important; border-top: 1px solid rgba(36, 29, 21, 0.25); font-weight: 700; }
.recibo__total s { color: var(--rojo); }
.oferta__hoy { font-family: var(--display); font-weight: 800; font-size: 24px; text-transform: uppercase; color: var(--tinta); margin: 0; }
.oferta__precio { font-family: var(--display); font-weight: 900; font-size: 112px; line-height: 0.9; color: var(--rojo); margin: 4px 0 6px; }
.oferta__moneda { font-size: 0.32em; vertical-align: 1.4em; margin-right: 6px; color: var(--tinta); }
.oferta__cent { font-size: 0.5em; vertical-align: 0.7em; }
.oferta__aclara { font-size: 15px; color: var(--tinta-suave); margin-bottom: 20px; }
.oferta__pagos { margin: 18px auto 4px; width: min(380px, 100%); }
.garantia { display: grid; grid-template-columns: 54px 1fr; gap: 14px; align-items: center; text-align: left; margin-top: 18px; padding: 14px; border-radius: 10px; background: rgba(31, 122, 58, 0.1); }
.garantia svg { width: 54px; height: 54px; color: #1f7a3a; }
.garantia p { margin: 0; font-size: 15px; color: var(--tinta); }

/* 9. preguntas */
.faq { margin-top: 30px; display: grid; gap: 10px; }
.faq details { background: #fbf7ee; border-radius: 10px; box-shadow: 0 6px 16px rgba(60, 40, 10, 0.1); }
.faq summary { list-style: none; cursor: pointer; padding: 18px 52px 18px 18px; font-weight: 800; color: var(--tinta); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-family: var(--display); font-size: 30px; color: var(--rojo); transition: transform 0.2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq summary:focus-visible { outline: 3px solid var(--ambar); outline-offset: 2px; border-radius: 10px; }
.faq details p { padding: 0 18px 18px; margin: 0; }

/* 10. cierre */
.cierre { position: relative; padding: 90px 0 100px; overflow: hidden; isolation: isolate; }
.cierre__fondo { position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, var(--carbon), rgba(20, 17, 14, 0.75) 40%, var(--carbon)), url("../img/fogo-dentro.jpg") center / cover no-repeat; }
.cierre h2 { margin-bottom: 16px; }
.cierre__texto { color: var(--texto-suave); margin-bottom: 28px; }

.pie { background: #0b0a08; color: #8c826f; font-size: 13px; padding: 28px 0 110px; text-align: center; }
.pie p { margin: 4px 0; }
.pie__legal { opacity: 0.8; }

/* barra fija */
.barra-fija {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: rgba(20, 17, 14, 0.94);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateY(110%);
  transition: transform 0.35s ease;
}
.barra-fija.activa { transform: none; }
.barra-fija__texto { display: grid; line-height: 1.2; font-size: 15px; }
.barra-fija__texto span { color: var(--ambar); font-weight: 800; }
.barra-fija__texto s { color: var(--texto-suave); font-weight: 400; margin-right: 4px; }

/* ---------- pantallas grandes ---------- */
@media (min-width: 760px) {
  .linea { grid-template-columns: 1fr 1fr; border-left: 0; padding: 0; }
  .linea__paso::before { display: none; }
  .tarjetas-foto { grid-template-columns: repeat(3, 1fr); }
  .manuales { grid-template-columns: 1fr 1fr; }
  .pasos { grid-template-columns: repeat(3, 1fr); }
  .opiniones { grid-template-columns: repeat(3, 1fr); }
  .dos-columnas { grid-template-columns: 0.85fr 1.15fr; align-items: center; }
  .oferta { padding: 44px 48px 36px; }
}
@media (min-width: 980px) {
  .heroe { padding: 80px 0 90px; }
  .heroe__rejilla { grid-template-columns: 1.05fr 0.95fr; grid-template-areas: "texto producto" "cta producto"; align-items: center; column-gap: 40px; }
  .heroe__texto { grid-area: texto; }
  .heroe__producto { grid-area: producto; width: 100%; }
  .heroe__cta { grid-area: cta; justify-items: start; }
  .heroe__cta .garantias { justify-content: flex-start; }
  .barra-fija { display: none; }
  .pie { padding-bottom: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .revelar { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}