/* GRINTA · Versión B · La G que empuja
   Hoja de plano: grafito, papel y una sola marca naranja por sección. */

:root {
  --graphite: #22262B;
  --ink: #16191C;
  --copper: #AD532A;
  /* Copper text on --ink: --copper alone falls under 4.5:1 there. */
  --copper-on-dark: #D9784A;
  --paper: #F2F0ED;
  --paper-2: #E8E5E0;
  --white: #FFFFFF;
  --muted: #545961;
  --muted-dark: #A9AEB4;
  --line: rgba(34, 38, 43, .18);
  --line-dark: rgba(255, 255, 255, .16);

  --display: "Archivo Black", "Arial Black", Impact, sans-serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --radius: 4px;
  --header-h: 64px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 8px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--graphite);
  font: 400 1.0625rem/1.6 var(--sans);
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

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

h1, h2 {
  font-family: var(--display);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -.01em;
  text-wrap: balance;
}

h2 { font-size: clamp(1.9rem, 5.2vw, 3.25rem); }
h3 { font-size: 1.125rem; line-height: 1.3; font-weight: 600; }

a { color: inherit; }

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

.skip {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 12px 16px;
  background: var(--graphite);
  color: var(--white);
  font-weight: 600;
  text-decoration: none;
}
.skip:focus { top: 12px; }

.wrap {
  width: min(100% - 32px, 1280px);
  margin-inline: auto;
}

/* ---------- Shared pieces ---------- */

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font: 500 .8125rem/1.3 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: currentColor;
  flex: none;
}
.eyebrow--dark { color: var(--muted-dark); }
.eyebrow--cta { color: var(--white); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border: 2px solid var(--graphite);
  border-radius: var(--radius);
  font: 600 1rem/1.2 var(--sans);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn--dark { background: var(--graphite); color: var(--white); }
.btn--dark:hover { background: var(--ink); border-color: var(--ink); }
.btn--ghost { background: transparent; color: var(--graphite); }
.btn--ghost:hover { background: var(--graphite); color: var(--white); }
.btn--sm { min-height: 40px; padding: 0 14px; font-size: .875rem; }
.btn--block { width: 100%; }

.section { padding-block: 72px; }
.section__head { max-width: 780px; margin-bottom: 40px; }
.section__intro { margin-top: 18px; font-size: 1.125rem; color: var(--muted); max-width: 640px; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 2px solid var(--graphite);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-h);
}
.brand { display: block; margin-left: -10px; }
.brand img { height: 46px; width: auto; }

.site-nav { display: none; }

/* ---------- Hero: hoja de plano ---------- */

.hero {
  padding-block: 48px 56px;
  border-bottom: 2px solid var(--graphite);
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(34, 38, 43, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 38, 43, .09) 1px, transparent 1px),
    linear-gradient(rgba(34, 38, 43, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 38, 43, .045) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  background-position: -1px -1px;
}

.hero__grid { display: grid; gap: 48px; }

.hero__title {
  font-size: clamp(2.5rem, 10.6vw, 5.75rem);
  line-height: .98;
  letter-spacing: -.02em;
  max-width: 12.5ch;
}

.push {
  display: flex;
  align-items: flex-end;
  margin-block: 24px 28px;
  animation: push-in 1s cubic-bezier(.2, .7, .2, 1) .2s both;
}
.push__line {
  flex: 1;
  height: 12px;
  border-radius: 6px 0 0 6px;
  background: var(--copper);
}
/* Same bend as the logo's arrow: it runs flat, then turns 45° up. */
.push__head {
  flex: none;
  width: 36px;
  height: 44px;
  margin-left: -1px;
  overflow: visible;
}
.push__shaft { fill: none; stroke: var(--copper); stroke-width: 12; stroke-linejoin: round; }
.push__tip { fill: var(--copper); stroke: var(--copper); stroke-width: 3; stroke-linejoin: round; }
@keyframes push-in {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0 0 0); }
}

.hero__lead {
  font-size: clamp(1.125rem, 2.4vw, 1.375rem);
  line-height: 1.5;
  max-width: 34ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.actions .btn { flex: 1 1 auto; }

/* Cajetín (title block) */
.cajetin {
  align-self: end;
  background: var(--white);
  border: 2px solid var(--graphite);
}
.cajetin__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 2px solid var(--graphite);
}
.cajetin__head img { width: 40px; height: 40px; }
.cajetin__name { font: 400 1.25rem/1 var(--display); letter-spacing: .02em; }
.cajetin__sub { margin-top: 4px; font: 400 .8125rem/1 var(--mono); color: var(--muted); }
.cajetin__rows > div {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  border-bottom: 1px solid var(--graphite);
}
.cajetin__rows > div:last-child { border-bottom: 0; }
.cajetin__rows dt {
  padding: 10px 12px;
  border-right: 1px solid var(--graphite);
  font: 500 .75rem/1.4 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.cajetin__rows dd { padding: 9px 12px; font-size: .9375rem; line-height: 1.4; }

/* ---------- Rubros ---------- */

.niches { display: grid; gap: 20px; }

.niche {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 2px solid var(--graphite);
  border-top: 8px solid var(--copper);
  padding: 22px 20px 0;
}
.niche__tag {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 500 .8125rem/1.35 var(--mono);
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--muted);
}
.niche__code {
  flex: none;
  padding: 3px 7px;
  background: var(--graphite);
  color: var(--white);
  letter-spacing: .08em;
}
.niche__q {
  margin-block: 18px 16px;
  font: 400 clamp(1.4rem, 4.4vw, 1.625rem)/1.15 var(--display);
  letter-spacing: -.005em;
  text-wrap: balance;
}
.niche > p:not([class]) { color: var(--muted); font-size: 1rem; }
.niche__label {
  margin-top: 20px;
  font: 500 .75rem/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chips li {
  padding: 5px 10px;
  border: 1px solid var(--graphite);
  border-radius: var(--radius);
  font: 500 .8125rem/1.3 var(--mono);
}
.niche__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: auto -20px 0;
  margin-top: 24px;
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  font-size: .9375rem;
}
.niche__foot a {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
  white-space: nowrap;
}
.niche__foot a::after { content: " →"; }

.signals {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 2px solid var(--graphite);
}
.signals__title { font-size: 1.125rem; }
.signals__list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}
.signals__list li {
  position: relative;
  padding-left: 30px;
}
.signals__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .3em;
  width: 16px;
  height: 16px;
  border: 2px solid var(--graphite);
}
.signals__note { margin-top: 24px; color: var(--muted); }

/* ---------- Etapas ---------- */

#etapas { background: var(--paper-2); border-block: 2px solid var(--graphite); }

.flow { display: grid; }

.stage {
  background: var(--white);
  border: 2px dashed var(--graphite);
  padding: 22px 20px 24px;
}
.stage--entry { border-style: solid; }
.stage h3 { margin-block: 14px 10px; font: 400 1.75rem/1.1 var(--display); }
.stage > p:not([class]) { font-size: 1rem; }
.stage__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font: 500 .75rem/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.stage__num { color: var(--muted); }
.stage__flag { padding: 5px 8px; background: var(--copper); color: var(--white); }
.stage__opt { padding: 4px 7px; border: 1px dashed var(--graphite); }
.stage__fact {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font: 400 .875rem/1.5 var(--mono);
  color: var(--muted);
}

.gate {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 0 18px 13px;
}
.gate::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--graphite);
}
.gate__diamond {
  position: relative;
  flex: none;
  width: 26px;
  height: 26px;
  background: var(--paper-2);
  border: 2px solid var(--graphite);
  transform: rotate(45deg);
}
.gate__text {
  font: 500 .8125rem/1.3 var(--mono);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.principles {
  display: grid;
  gap: 24px;
  margin-top: 48px;
}
.principles li {
  padding-top: 16px;
  border-top: 2px solid var(--graphite);
  font-size: 1rem;
  color: var(--muted);
}
.principles strong { color: var(--graphite); font-weight: 600; }

/* ---------- Diagnóstico: lista de materiales ---------- */

.section--dark { background: var(--ink); color: var(--white); }
.section--dark .section__intro { color: var(--muted-dark); }
.section--dark :focus-visible { outline-color: var(--white); }

.bom { border-top: 2px solid var(--white); }
.bom__row {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 4px 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-dark);
}
.bom__row--head { display: none; }
.bom__pos { font: 500 .9375rem/1.5 var(--mono); color: var(--muted-dark); }
.bom__item { font-weight: 600; font-size: 1.125rem; line-height: 1.35; }
.bom__use { grid-column: 2; color: var(--muted-dark); font-size: 1rem; }
.bom__row--key { box-shadow: inset 4px 0 0 var(--copper-on-dark); padding-left: 16px; grid-template-columns: calc(3rem - 16px) 1fr; }
.bom__row--key .bom__pos,
.bom__row--key .bom__item { color: var(--copper-on-dark); }

/* ---------- Equipo ---------- */

.team { display: grid; gap: 16px; }
.member {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--white);
  border: 2px solid var(--graphite);
}
.member__mono {
  flex: none;
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  background: var(--graphite);
  color: var(--white);
  font: 400 1.375rem/1 var(--display);
  letter-spacing: .04em;
}
.member h3 { font: 400 1.375rem/1.1 var(--display); }
.member__role { margin-block: 6px 10px; font-weight: 600; font-size: .9375rem; line-height: 1.4; }
.member__body > p:not([class]) { font-size: .9375rem; color: var(--muted); line-height: 1.55; }
.member__niche {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed var(--graphite);
  font: 500 .75rem/1.4 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ---------- Contacto ---------- */

.contact { border-top: 2px solid var(--graphite); }
.contact__grid { display: grid; gap: 0; border: 2px solid var(--graphite); }

.contact__cta {
  padding: 32px 20px;
  background: var(--copper);
  color: var(--white);
}
.contact__cta h2 { font-size: clamp(2.25rem, 7vw, 4rem); }
.contact__cta > p:not([class]) { font-size: 1.0625rem; max-width: 42ch; }
.contact__small { margin-top: 12px; font: 500 .875rem/1.4 var(--mono); }
.contact__cta .btn { margin-top: 28px; }
.btn--wa svg { width: 22px; height: 22px; fill: currentColor; }

.cota {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 360px;
  margin-block: 22px 24px;
}
.cota__tick { width: 2px; height: 20px; background: var(--white); }
.cota__line { flex: 1; height: 2px; background: var(--white); margin-inline: -10px; }
.cota__line:first-of-type { margin-right: 0; }
.cota__line:last-of-type { margin-left: 0; }
.cota__label { font: 500 .875rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; }

.form {
  display: grid;
  gap: 18px;
  padding: 28px 20px;
  background: var(--white);
}
.form__title { font: 400 1.5rem/1.1 var(--display); }
.form__hint { margin-top: -8px; font-size: .9375rem; color: var(--muted); }
.field { display: grid; gap: 6px; }
.field label { font-weight: 600; font-size: .9375rem; }
.field__opt { font-weight: 400; color: var(--muted); }
.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 2px solid var(--graphite);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--graphite);
  font: 400 1rem/1.4 var(--sans);
}
.field textarea { resize: vertical; min-height: 112px; }
.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--graphite) 50%), linear-gradient(135deg, var(--graphite) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
  background-size: 6px 6px;
  background-repeat: no-repeat;
  padding-right: 40px;
}
.field ::placeholder { color: #6B7078; }
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: 3px solid var(--copper);
  outline-offset: 1px;
}
.form__status { min-height: 1.4em; font: 500 .875rem/1.4 var(--mono); }

/* ---------- Footer ---------- */

.site-footer {
  padding-block: 48px;
  background: var(--ink);
  color: var(--white);
}
.site-footer :focus-visible { outline-color: var(--white); }
.site-footer__inner { display: grid; gap: 28px; }
.site-footer__logo { width: 200px; height: auto; margin-left: -12px; }
.site-footer__meta { display: grid; gap: 14px; }
.site-footer__meta dt {
  font: 500 .75rem/1.4 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted-dark);
}
.site-footer__meta dd { font-size: .9375rem; }
.site-footer__copy { font: 400 .8125rem/1 var(--mono); color: var(--muted-dark); }
.site-footer__copy a { color: inherit; text-underline-offset: 3px; }
.site-footer__copy a:hover { color: var(--white); }

/* ---------- Tablet ---------- */

@media (min-width: 640px) {
  .actions .btn { flex: 0 0 auto; }
  .signals__list { grid-template-columns: repeat(2, 1fr); gap: 14px 32px; }
  .team { grid-template-columns: repeat(2, 1fr); }
  .member { flex-direction: column; }
  .site-footer__meta { grid-template-columns: repeat(3, auto); justify-content: start; column-gap: 48px; }
}

@media (min-width: 768px) {
  .wrap { width: min(100% - 64px, 1280px); }
  .section { padding-block: 104px; }
  .section__head { margin-bottom: 56px; }
  .bom__row--head {
    display: grid;
    padding-block: 12px;
    font: 500 .75rem/1.4 var(--mono);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted-dark);
  }
  .bom__row { grid-template-columns: 4.5rem minmax(0, 1fr) minmax(0, 1.3fr); gap: 24px; align-items: baseline; padding-block: 22px; }
  .bom__row--key { grid-template-columns: calc(4.5rem - 16px) minmax(0, 1fr) minmax(0, 1.3fr); }
  .bom__use { grid-column: auto; }
  .bom__item { font-size: 1.25rem; }
  .principles { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .contact__cta, .form { padding: 44px 40px; }
}

/* ---------- Desktop ---------- */

@media (min-width: 960px) {
  .site-nav { display: flex; gap: 28px; margin-left: auto; }
  .site-nav a {
    font-weight: 500;
    font-size: .9375rem;
    text-decoration: none;
    padding-block: 6px;
    border-bottom: 2px solid transparent;
  }
  .site-nav a:hover { border-bottom-color: var(--graphite); }
  .site-header__inner { gap: 32px; }

  .hero { padding-block: 88px 96px; }
  .hero__grid { grid-template-columns: minmax(0, 1fr) 380px; gap: 64px; }
  .push { margin-block: 32px 32px; }

  .niches { grid-template-columns: repeat(3, 1fr); }
  .signals { display: grid; grid-template-columns: 1fr 2fr; gap: 16px 48px; }
  .signals__list { margin-top: 0; }
  .signals__note { grid-column: 2; margin-top: 8px; }

  .flow { grid-template-columns: minmax(0, 1fr) 112px minmax(0, 1fr) 112px minmax(0, 1fr); align-items: stretch; }
  .gate {
    display: grid;
    grid-template-rows: 1fr auto 1fr;
    justify-items: center;
    gap: 0;
    padding: 0 6px;
    text-align: center;
  }
  .gate::before { left: 0; right: 8px; top: 50%; bottom: auto; width: auto; height: 2px; transform: translateY(-1px); }
  .gate::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    border-left: 10px solid var(--graphite);
    border-block: 7px solid transparent;
  }
  .gate__diamond { grid-row: 2; }
  .gate__text { grid-row: 3; align-self: start; margin-top: 14px; font-size: .75rem; }

  .contact__grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1200px) {
  .team { grid-template-columns: repeat(5, 1fr); }
  .member { padding: 22px 18px; }
}

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .push { animation: none; }
  * { transition: none !important; }
}