/* ───────────── Base ───────────── */
:root {
  --papel: #F2EEE4;
  --papel-2: #E8E2D3;
  --tinta: #0F1E27;
  --tinta-2: #40505A;
  --oxido: #C63D14;
  --oxido-osc: #A3300E;
  --oxido-claro: #F0703F;
  --mar: #0C4F58;
  --linea: rgba(15, 30, 39, .18);
  --linea-clara: rgba(242, 238, 228, .2);

  --display: "Barlow Condensed", "Arial Narrow", Impact, sans-serif;
  --texto: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --gutter: clamp(16px, 4vw, 40px);
  --barra-alto: 64px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--barra-alto) + 12px); }

body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--texto);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul, ol, dl, dd, fieldset { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; }
fieldset { border: 0; }

.ancho { width: min(1180px, 100% - 2 * var(--gutter)); margin-inline: auto; }

.saltar {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--tinta); color: var(--papel); padding: 10px 16px;
}
.saltar:focus { top: 12px; }

:focus-visible { outline: 3px solid var(--oxido-claro); outline-offset: 3px; }

/* ───────────── Tipografía ───────────── */
h1, h2 {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  line-height: .92;
  letter-spacing: -.005em;
  text-wrap: balance;
}
h1 { font-size: clamp(3.4rem, 9.2vw, 7.4rem); }
h2 { font-size: clamp(2.3rem, 5.2vw, 4rem); max-width: 26ch; }
#problema h2 { max-width: none; }
h3 { font-family: var(--display); font-weight: 700; font-size: 1.5rem; line-height: 1.1; letter-spacing: .01em; }

.rotulo {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--oxido);
  margin-bottom: 18px;
}
.seccion--oscura .rotulo { color: var(--oxido-claro); }

/* ───────────── Botones ───────────── */
.boton {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 26px;
  background: var(--oxido); color: #fff;
  font-family: var(--display); font-weight: 700; font-size: 1.25rem;
  letter-spacing: .04em; text-transform: uppercase; text-decoration: none;
  border: 0; border-radius: 2px; cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}
.boton:hover { background: var(--oxido-osc); }
.boton:active { transform: translateY(1px); }
.boton--chico { min-height: 42px; padding: 0 18px; font-size: 1.05rem; }
.boton--claro { background: var(--papel); color: var(--tinta); }
.boton--claro:hover { background: #fff; }
.boton--ancho { width: 100%; }

.enlace-flecha {
  font-weight: 600; text-decoration: none;
  border-bottom: 2px solid var(--tinta); padding-bottom: 2px;
}
.enlace-flecha::after { content: " ↓"; }
.enlace-flecha:hover { color: var(--oxido); border-color: var(--oxido); }

/* ───────────── Barra ───────────── */
.barra {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--papel) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--linea);
}
.barra__fila { display: flex; align-items: center; gap: 28px; height: var(--barra-alto); }

.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--tinta); }
.logo__marca { width: 30px; height: 30px; fill: none; stroke: var(--oxido); stroke-width: 3.4; stroke-linecap: square; }
.logo__nombre {
  font-family: var(--display); font-weight: 800; font-size: 1.85rem;
  letter-spacing: .03em; text-transform: uppercase; line-height: 1;
}

.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a { font-size: .95rem; font-weight: 500; text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover { border-color: var(--oxido); }

/* ───────────── Inicio ───────────── */
.inicio { padding: clamp(40px, 7vw, 88px) 0 clamp(56px, 8vw, 104px); overflow: hidden; }
.inicio__rejilla {
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  gap: clamp(32px, 5vw, 72px); align-items: center;
}
.h1__acento { color: var(--oxido); white-space: nowrap; }
.inicio__bajada { font-size: clamp(1.1rem, 1.6vw, 1.3rem); max-width: 34em; margin-top: 26px; color: var(--tinta-2); }
.inicio__acciones { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; margin-top: 34px; }
.inicio__puntos {
  display: flex; flex-wrap: wrap; gap: 8px 26px; margin-top: 40px; padding-top: 22px;
  border-top: 1px solid var(--linea);
  font-family: var(--mono); font-size: .8rem; letter-spacing: .02em; color: var(--tinta-2);
}
.inicio__puntos li::before { content: "✓ "; color: var(--oxido); font-weight: 600; }

/* Guía de importación */
.guia {
  position: relative;
  background: #FBF9F3;
  border: 1.5px solid var(--tinta);
  box-shadow: 10px 10px 0 var(--tinta);
  padding: 22px 22px 26px;
  transform: rotate(1.2deg);
}
.guia__cabeza {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding-bottom: 14px; border-bottom: 1.5px solid var(--tinta);
}
.guia__titulo { font-family: var(--display); font-weight: 800; font-size: 1.5rem; text-transform: uppercase; letter-spacing: .03em; }
.guia__folio { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--tinta-2); }

.guia__campos { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1.5px solid var(--tinta); }
.guia__campos > div { padding: 12px 12px 12px 0; border-bottom: 1px dashed var(--linea); }
.guia__campos > div:nth-child(even) { padding-left: 12px; border-left: 1px dashed var(--linea); }
.guia__campos > div:nth-last-child(-n+2) { border-bottom: 0; }
.guia__campos dt { font-family: var(--mono); font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--tinta-2); }
.guia__campos dd { font-weight: 600; font-size: .95rem; line-height: 1.3; margin-top: 3px; }

.guia__etapas { margin-top: 18px; display: grid; gap: 0; }
.guia__etapas li {
  position: relative; display: flex; align-items: center; gap: 14px;
  padding: 9px 0; font-weight: 500; color: var(--tinta-2);
  transition: color .3s ease;
}
.guia__etapas li:not(:last-child)::after {
  content: ""; position: absolute; left: 8px; top: 30px; bottom: -10px; width: 2px;
  background: var(--linea); transition: background .3s ease;
}
.guia__punto {
  flex: none; width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid var(--tinta-2); background: #FBF9F3; position: relative; z-index: 1;
  transition: background .3s ease, border-color .3s ease;
}
.guia__etapas li.es-actual { color: var(--tinta); }
.guia__etapas li.es-actual .guia__punto { border-color: var(--oxido); box-shadow: 0 0 0 4px rgba(198, 61, 20, .18); }
.guia__etapas li.es-hecha { color: var(--tinta); }
.guia__etapas li.es-hecha .guia__punto { background: var(--oxido); border-color: var(--oxido); }
.guia__etapas li.es-hecha::after { background: var(--oxido); }

.guia__sello {
  position: absolute; right: 16px; bottom: 26px;
  font-family: var(--display); font-weight: 800; font-size: 1.7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--mar); border: 3px solid var(--mar); border-radius: 4px; padding: 2px 12px;
  transform: rotate(-12deg) scale(1.5); opacity: 0;
  transition: opacity .18s ease, transform .22s cubic-bezier(.2, 1.4, .4, 1);
}
.guia__sello.es-visible { opacity: .9; transform: rotate(-12deg) scale(1); }

/* ───────────── Secciones ───────────── */
.seccion { padding: clamp(64px, 9vw, 120px) 0; }
.seccion--oscura { background: var(--tinta); color: var(--papel); }
.seccion--tenue { background: var(--papel-2); }
.seccion__bajada { font-size: 1.12rem; max-width: 38em; margin-top: 20px; color: var(--tinta-2); }
.seccion--oscura .seccion__bajada { color: rgba(242, 238, 228, .78); }

/* Comparación */
.comparar { display: grid; grid-template-columns: 1fr 1fr; margin-top: 48px; border: 1.5px solid var(--tinta); }
.comparar__col { padding: clamp(24px, 3.4vw, 44px); }
.comparar__col h3 { font-size: 1.7rem; text-transform: uppercase; margin-bottom: 22px; }
.comparar__col li { padding: 11px 0; border-top: 1px solid var(--linea); }
.comparar__col--solo { color: var(--tinta-2); }
.comparar__col--solo li { text-decoration: line-through; text-decoration-color: rgba(198, 61, 20, .7); text-decoration-thickness: 1.5px; }
.comparar__col--marca { background: var(--tinta); color: var(--papel); }
.comparar__col--marca h3 [data-marca] { color: var(--oxido-claro); }
.comparar__col--marca li {
  border-color: var(--linea-clara); font-size: 1.2rem; font-weight: 500;
  display: flex; gap: 14px; align-items: baseline;
}
.comparar__col--marca li::before { content: "→"; color: var(--oxido-claro); font-family: var(--mono); }
.comparar__nota { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--linea-clara); color: rgba(242, 238, 228, .78); font-size: .98rem; }

/* Pasos */
.pasos { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin-top: 56px; border-top: 2px solid var(--oxido-claro); }
.pasos li { position: relative; padding: 26px 22px 0 0; display: flex; flex-direction: column; }
.pasos li + li { padding-left: 22px; border-left: 1px solid var(--linea-clara); }
.pasos li::before {
  content: ""; position: absolute; top: -8px; left: 0; width: 14px; height: 14px;
  background: var(--oxido-claro); border-radius: 50%;
}
.pasos li + li::before { left: 22px; }
.pasos__num { font-family: var(--mono); font-size: .8rem; letter-spacing: .14em; color: var(--oxido-claro); }
.pasos h3 { margin: 10px 0 12px; font-size: 1.55rem; }
.pasos p { font-size: .97rem; color: rgba(242, 238, 228, .78); }
.pasos .pasos__recibes {
  margin-top: auto; padding-top: 22px;
  font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--papel);
}

/* Categorías */
.categorias {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 48px; border-top: 1.5px solid var(--tinta); border-left: 1px solid var(--linea);
}
.categorias li {
  padding: 24px 22px 28px; border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea);
  transition: background .15s ease;
}
.categorias li:hover { background: #FBF9F3; }
.categorias h3 { margin-bottom: 8px; }
.categorias p { font-size: .95rem; color: var(--tinta-2); }
.aviso {
  margin-top: 28px; max-width: 46em; padding-left: 16px; border-left: 3px solid var(--oxido);
  font-size: .95rem; color: var(--tinta-2);
}

/* Franja contenedor */
.contenedor {
  background-color: var(--oxido);
  background-image: repeating-linear-gradient(90deg,
    rgba(0, 0, 0, .0) 0 26px, rgba(0, 0, 0, .13) 26px 30px, rgba(255, 255, 255, .07) 30px 33px, rgba(0, 0, 0, 0) 33px 52px);
  color: #fff; padding: clamp(44px, 6vw, 76px) 0;
  border-block: 6px solid var(--oxido-osc);
}
.contenedor__fila { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 28px; }
.contenedor__codigo { font-family: var(--mono); font-size: .85rem; letter-spacing: .2em; opacity: .85; margin-bottom: 12px; }
.contenedor__frase {
  font-family: var(--display); font-weight: 800; text-transform: uppercase;
  font-size: clamp(2.1rem, 5vw, 3.8rem); line-height: .95;
}

/* Qué incluye */
.incluye { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.incluye__intro { position: sticky; top: calc(var(--barra-alto) + 32px); }
.manifiesto { border-top: 1.5px solid var(--tinta); }
.manifiesto > div { display: grid; grid-template-columns: 9.5em 1fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--linea); align-items: baseline; }
.manifiesto dt { font-family: var(--mono); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--oxido); }
.manifiesto dd { font-size: 1.08rem; }

/* Preguntas */
.preguntas { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.preguntas__lista { border-top: 1.5px solid var(--tinta); }
details { border-bottom: 1px solid var(--linea); }
summary {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 20px 0; cursor: pointer; list-style: none;
  font-weight: 600; font-size: 1.1rem;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--mono); font-size: 1.4rem; color: var(--oxido); flex: none; line-height: 1; }
details[open] summary::after { content: "–"; }
summary:hover { color: var(--oxido); }
details p { padding: 0 40px 22px 0; color: var(--tinta-2); max-width: 40em; }

/* Cotiza */
.cotiza { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.cotiza__contacto { margin-top: 36px; display: grid; gap: 14px; }
.cotiza__contacto li { display: grid; gap: 2px; }
.cotiza__contacto span { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--oxido-claro); }
.cotiza__contacto a { font-size: 1.15rem; font-weight: 500; text-decoration-color: var(--linea-clara); text-underline-offset: 4px; overflow-wrap: anywhere; }
.cotiza__contacto a:hover { text-decoration-color: var(--oxido-claro); }

.forma { background: var(--papel); color: var(--tinta); padding: clamp(22px, 3.4vw, 40px); display: grid; gap: 20px; border-radius: 2px; }
.forma__par { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.forma label { display: grid; gap: 7px; font-size: .9rem; font-weight: 600; }
.opcional { font-family: var(--mono); font-weight: 400; font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--tinta-2); }
.forma label:has(.opcional) { grid-template-columns: 1fr auto; align-items: baseline; }
.forma label:has(.opcional) > :last-child { grid-column: 1 / -1; }
.forma input[type="text"], .forma input[type="tel"], .forma input[type="email"], .forma textarea {
  width: 100%; font: inherit; font-weight: 400; font-size: 1rem; color: var(--tinta);
  background: #FBF9F3; border: 1.5px solid rgba(15, 30, 39, .45); border-radius: 2px; padding: 12px 14px;
}
.forma textarea { resize: vertical; min-height: 110px; }
.forma input::placeholder, .forma textarea::placeholder { color: #6B7880; }
.forma input:focus-visible, .forma textarea:focus-visible { outline: 3px solid var(--oxido); outline-offset: 1px; border-color: var(--tinta); }
.forma [aria-invalid="true"] { border-color: var(--oxido); background: #FCEFEA; }
.forma__opciones { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px; }
.forma__opciones legend { float: left; font-size: .9rem; font-weight: 600; margin-right: 22px; padding: 0; }
.forma__opciones label { display: inline-flex; align-items: center; gap: 8px; font-weight: 400; font-size: 1rem; cursor: pointer; }
.forma__opciones input { width: 18px; height: 18px; accent-color: var(--oxido); margin: 0; }
.forma__error { color: var(--oxido-osc); font-weight: 600; font-size: .95rem; }
.forma__nota { font-family: var(--mono); font-size: .74rem; color: var(--tinta-2); text-align: center; }

/* ───────────── Pie ───────────── */
.pie { background: var(--tinta); color: var(--papel); border-top: 1px solid var(--linea-clara); padding: 48px 0 28px; }
.pie__fila { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 28px; }
.logo--pie { color: var(--papel); }
.logo--pie .logo__marca { stroke: var(--oxido-claro); }
.pie__legal { margin-top: 12px; font-size: .92rem; color: rgba(242, 238, 228, .7); }
.pie__nav { display: flex; flex-wrap: wrap; gap: 10px 26px; align-content: start; }
.pie__nav a { font-size: .95rem; text-decoration: none; color: rgba(242, 238, 228, .85); }
.pie__nav a:hover { color: var(--oxido-claro); }
.pie__base {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--linea-clara);
  font-family: var(--mono); font-size: .72rem; letter-spacing: .04em; color: rgba(242, 238, 228, .6);
}

/* ───────────── Selector de nombres (solo con #nombres) ───────────── */
.nombres {
  position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 60;
  display: flex; align-items: center; gap: 14px; max-width: calc(100% - 24px);
  background: #fff; color: var(--tinta); border: 1.5px solid var(--tinta); box-shadow: 5px 5px 0 var(--tinta);
  padding: 8px 10px 8px 16px;
}
.nombres[hidden] { display: none; }
.nombres__titulo { font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; white-space: nowrap; }
.nombres__lista { display: flex; gap: 6px; overflow-x: auto; }
.nombres button {
  font-family: var(--display); font-weight: 700; font-size: 1.1rem; letter-spacing: .04em; text-transform: uppercase;
  background: transparent; color: var(--tinta); border: 1.5px solid var(--linea); border-radius: 2px;
  padding: 6px 12px; cursor: pointer; white-space: nowrap;
}
.nombres button:hover { border-color: var(--tinta); }
.nombres button[aria-pressed="true"] { background: var(--oxido); border-color: var(--oxido); color: #fff; }

/* ───────────── Adaptación ───────────── */
@media (max-width: 1100px) {
  .pasos { grid-template-columns: 1fr; border-top: 0; border-left: 2px solid var(--oxido-claro); margin-top: 44px; }
  .pasos li, .pasos li + li { padding: 0 0 34px 28px; border-left: 0; }
  .pasos li:last-child { padding-bottom: 0; }
  .pasos li::before, .pasos li + li::before { top: 2px; left: -8px; }
  .pasos .pasos__recibes { padding-top: 14px; }
  .categorias { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .barra__fila { justify-content: space-between; }
  .inicio__rejilla, .incluye, .preguntas, .cotiza, .comparar { grid-template-columns: 1fr; }
  .incluye__intro { position: static; }
  .guia { transform: none; max-width: 460px; margin-right: 10px; }
  h2 { max-width: none; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .boton--chico { font-size: .95rem; padding: 0 12px; }
  .logo__nombre { font-size: 1.6rem; }
  .categorias { grid-template-columns: 1fr; }
  .forma__par { grid-template-columns: 1fr; }
  .manifiesto > div { grid-template-columns: 1fr; gap: 6px; }
  .inicio__acciones .boton { width: 100%; }
  .contenedor__fila .boton { width: 100%; }
  details p { padding-right: 0; }
  .nombres { flex-direction: column; align-items: stretch; gap: 6px; padding: 8px; }
}

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