/* Arecotech · hoja de estilos principal
   Paleta: ink #17181A · ámbar #C9922B · papel #FBFAF8 · arena #F2EFE9
   Tipografía: Archivo (texto) + JetBrains Mono (etiquetas) */

:root {
  --ink: #17181A;
  --ink-soft: #1F2023;
  --amber: #C9922B;
  --amber-dark: #7A5A10;
  --amber-link: #9A6F14;
  --paper: #FBFAF8;
  --sand: #F2EFE9;
  --line: #E2DED5;
  --line-2: #C9BFA8;
  --text: #4A4740;
  --muted: #6E6A62;
  --dark-muted: #9C978D;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Archivo', Helvetica, Arial, sans-serif;
  --wrap: 1160px;
  --ease: cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { letter-spacing: -0.035em; }
p { text-wrap: pretty; }
img { max-width: 100%; }

a { color: var(--amber-link); text-decoration: none; }
a:hover { color: var(--ink); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 40px; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper);
  padding: 12px 18px; z-index: 100;
}
.skip:focus { left: 12px; top: 12px; color: var(--paper); }

/* ---------- marca ---------- */

.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.brand__mark { width: 34px; height: 34px; flex: none; display: block; }
.wordmark {
  font-size: 20px; font-weight: 600; letter-spacing: -0.04em; line-height: 1;
  display: inline-flex; align-items: flex-start;
}
.wordmark__dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--amber); margin-left: 2px; margin-top: 3px;
}
.brand--dark { color: var(--paper); }
.brand--dark .brand__mark { width: 0; height: 0; display: none; }
.brand--dark .wordmark { font-size: 16px; }
.brand--dark .wordmark__dot { width: 4px; height: 4px; margin-top: 2px; }

/* ---------- barra superior ---------- */

.topbar {
  position: sticky; top: 0; z-index: 40;
  background: rgba(242,239,233,.94);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar--static { position: static; }
.topbar__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding-top: 16px; padding-bottom: 16px;
}
.nav { display: flex; align-items: center; gap: 26px; font-size: 14px; }
.nav__link { color: var(--text); }
.nav__link:hover { color: var(--ink); }

/* ---------- botones ---------- */

.btn {
  display: inline-block; border: 1px solid transparent; border-radius: 24px;
  font-family: var(--sans); font-size: 15px; font-weight: 500;
  padding: 14px 24px; cursor: pointer;
  transition: transform .25s var(--ease), opacity .25s ease;
}
.btn:hover { transform: translateY(-2px); opacity: .92; }
.btn--ink { background: var(--ink); color: var(--paper); padding: 10px 18px; border-radius: 20px; }
.btn--ink:hover { color: var(--paper); }
.btn--amber { background: var(--amber); color: var(--ink); font-weight: 600; }
.btn--amber:hover { color: var(--ink); }
.btn--line { border-color: var(--line-2); color: var(--ink); }
.btn--full { width: 100%; border-radius: 0; }

/* ---------- hero ---------- */

.hero { background: var(--sand); padding: 96px 40px 88px; text-align: center; }
.hero__inner { max-width: 900px; margin: 0 auto; }
.eyebrow {
  font-family: var(--mono); font-size: 13px; letter-spacing: .22em;
  color: var(--amber-dark); margin: 0 0 24px;
}
.hero h1 {
  margin: 0; font-size: clamp(34px, 7vw, 62px); font-weight: 600;
  letter-spacing: -0.045em; line-height: 1.03; text-wrap: balance;
}
.hero__lead {
  margin: 22px auto 0; max-width: 620px;
  font-size: 17px; line-height: 1.65; color: var(--text);
}
.hero__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 34px; }
.metrics {
  list-style: none; margin: 56px 0 0; padding: 0;
  display: flex; justify-content: center; flex-wrap: wrap; gap: 40px;
  font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--muted);
}

/* ---------- secciones ---------- */

.section { padding: 88px 0 24px; }
.section__head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 40px; }
.section__head h2 { margin: 0; font-size: clamp(26px, 4.4vw, 34px); font-weight: 600; }
.tag { font-family: var(--mono); font-size: 12px; letter-spacing: .16em; color: var(--amber-link); }
.section__note { margin: -24px 0 32px; font-size: 15px; color: var(--text); }
.num { font-family: var(--mono); font-size: 12px; letter-spacing: .16em; color: var(--amber); }

/* servicios */

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.card {
  border: 1px solid var(--line); background: #FFFFFF; padding: 30px 28px;
  display: flex; flex-direction: column; gap: 12px;
  transition: transform .35s var(--ease), box-shadow .35s ease, border-color .35s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(23,24,26,.09);
  border-color: var(--amber);
}
.card h3 { margin: 0; font-size: 21px; font-weight: 600; letter-spacing: -0.02em; }
.card p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--text); }
.chip {
  align-self: flex-start; background: var(--sand);
  font-family: var(--mono); font-size: 11px; padding: 5px 9px;
}

/* proceso */

.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}
.step { padding: 24px 22px 28px; border-right: 1px solid var(--line); }
.step:first-child { padding-left: 0; }
.step:last-child { padding-right: 0; border-right: none; }
.step .num { display: block; margin-bottom: 12px; }
.step h3 { margin: 0 0 8px; font-size: 17px; font-weight: 600; }
.step p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--text); }

/* proyectos */

.ptable { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.prow {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr) minmax(0, 1.5fr) minmax(0, 1.1fr);
  gap: 20px; padding: 22px 4px; align-items: baseline;
  border-bottom: 1px solid var(--line); cursor: pointer;
  transition: background .25s ease, padding-left .25s ease, opacity .7s var(--ease), transform .7s var(--ease);
}
.prow:hover, .prow:focus-visible { background: var(--sand); padding-left: 14px; outline: none; }
.prow--head {
  padding: 12px 4px; cursor: default;
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--muted);
}
.prow--head:hover { background: none; padding-left: 4px; }
.prow__name { font-size: 18px; font-weight: 600; letter-spacing: -0.02em; }
.prow__type, .prow__what { font-size: 14px; color: var(--text); }
.prow__link { font-family: var(--mono); font-size: 12px; color: var(--amber-link); overflow-wrap: anywhere; }

/* sobre mí */

.about { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.about h2 { margin: 0 0 20px; font-size: clamp(26px, 4.4vw, 34px); font-weight: 600; }
.about p { margin: 0 0 16px; font-size: 16px; line-height: 1.7; color: var(--text); }
.about__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.about__actions .btn { padding: 14px 22px; border-radius: 22px; }
.facts {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 18px 22px; margin: 34px 0 0; padding-top: 22px; border-top: 1px solid var(--line);
}
.facts dt { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--muted); margin-bottom: 6px; }
.facts dd { margin: 0; font-size: 14px; }
.photo {
  position: relative; margin: 0; background: var(--sand);
  border: 1px solid var(--line); width: 100%; max-width: 502px;
}
.photo img { display: block; width: 100%; height: 466px; object-fit: cover; object-position: center 22%; }
.photo figcaption {
  position: absolute; left: 0; bottom: 0; background: var(--amber); color: var(--ink);
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em; padding: 9px 14px;
}

/* ---------- contacto ---------- */

.contact { margin-top: 88px; background: var(--ink); }
.contact__inner {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px; align-items: start; padding-top: 80px; padding-bottom: 80px;
}
.contact h2 {
  margin: 0; font-size: clamp(28px, 5vw, 40px); font-weight: 600;
  letter-spacing: -0.04em; color: var(--paper); line-height: 1.1; text-wrap: balance;
}
.contact__lead { margin: 18px 0 0; font-size: 16px; line-height: 1.65; color: var(--dark-muted); max-width: 460px; }
.contact__links { display: flex; flex-direction: column; gap: 12px; margin-top: 30px; }
.cta {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  border: 1px solid #3A3A3C; color: var(--paper); padding: 18px 22px;
  font-size: 16px; font-weight: 500; transition: transform .25s var(--ease);
}
.cta:hover { transform: translateY(-2px); color: var(--paper); }
.cta--amber { background: var(--amber); border-color: var(--amber); color: var(--ink); font-weight: 600; }
.cta--amber:hover { color: var(--ink); }
.arrow { display: inline-block; color: var(--amber); transition: transform .3s var(--ease); }
.cta--amber .arrow { color: var(--ink); }
.cta:hover .arrow { transform: translateX(6px); }

.form {
  background: var(--ink-soft); border: 1px solid #2F3033; padding: 30px 28px;
  display: flex; flex-direction: column; gap: 16px;
}
.form__label-top { margin: 0; font-family: var(--mono); font-size: 11px; letter-spacing: .16em; color: var(--amber); }
.form label { display: flex; flex-direction: column; gap: 7px; font-size: 13px; color: var(--dark-muted); }
.form input, .form textarea {
  font-family: var(--sans); font-size: 15px; padding: 13px 14px;
  background: var(--ink); border: 1px solid #3A3A3C; color: var(--paper);
}
.form textarea { resize: vertical; }
.form input:focus, .form textarea:focus { outline: 2px solid var(--amber); outline-offset: -2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form__status { margin: 0; font-size: 14px; line-height: 1.5; color: var(--dark-muted); }
.form__status[data-state="ok"] { color: var(--amber); }
.form__status[data-state="error"] { color: #E2A38F; }
.form__legal {
  margin: 0; font-family: var(--mono); font-size: 10px;
  letter-spacing: .08em; color: var(--muted); line-height: 1.6;
}
.form__legal a { color: var(--dark-muted); text-decoration: underline; }

/* ---------- pie ---------- */

.footer { background: var(--ink); border-top: 1px solid #2A2B2E; }
.footer__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding-top: 26px; padding-bottom: 26px;
}
.footer__links { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; }
.footer__links a, .footer__links span {
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em; color: var(--dark-muted);
}
.footer__links a:hover { color: var(--paper); }

/* ---------- documento legal ---------- */

.doc { max-width: 760px; margin: 0 auto; padding: 72px 40px 96px; }
.doc h1 { margin: 0; font-size: clamp(32px, 6vw, 48px); font-weight: 600; letter-spacing: -0.04em; line-height: 1.05; }
.doc__lead { margin: 18px 0 0; font-size: 16px; line-height: 1.7; color: var(--text); }
.doc__meta {
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--muted);
  margin: 22px 0 0; border-top: 1px solid var(--line); padding-top: 14px;
}
.doc__block { margin-top: 40px; }
.doc__block:first-of-type { margin-top: 52px; }
.doc__block h2 { margin: 0 0 12px; font-size: 22px; font-weight: 600; letter-spacing: -0.02em; }
.doc__block p, .doc__block li { font-size: 16px; line-height: 1.75; color: var(--text); }
.doc__block p { margin: 0 0 14px; }
.doc__block ul { margin: 0; padding-left: 20px; }
.doc__block li { margin-bottom: 8px; }
.doc__contact { background: var(--sand); border-left: 3px solid var(--amber); padding: 26px 28px; margin-top: 44px; }
.doc__data { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.doc__data li { font-family: var(--mono); font-size: 13px; }

/* ---------- modal de proyectos ---------- */

.modal {
  position: fixed; inset: 0; z-index: 60; padding: 32px;
  background: rgba(23,24,26,.72);
  display: flex; align-items: center; justify-content: center;
}
.modal[hidden] { display: none; }
.modal__box {
  width: 100%; max-width: 1100px; height: 100%; max-height: 760px;
  background: var(--paper); border: 1px solid var(--ink);
  display: flex; flex-direction: column;
}
.modal__bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 18px; border-bottom: 1px solid var(--line); background: var(--sand);
}
.modal__title { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.modal__title strong { font-size: 16px; font-weight: 600; letter-spacing: -0.02em; }
.modal__title span { font-family: var(--mono); font-size: 11px; color: var(--muted); overflow-wrap: anywhere; }
.modal__tools { display: flex; align-items: center; gap: 10px; flex: none; }
.modal__tools a {
  font-family: var(--mono); font-size: 11px; letter-spacing: .1em;
  border: 1px solid var(--line-2); padding: 8px 12px; color: var(--ink);
}
.modal__tools button {
  background: var(--ink); border: none; color: var(--paper);
  font-family: var(--mono); font-size: 12px; padding: 9px 13px; cursor: pointer;
}
.modal iframe { border: none; flex: 1; width: 100%; background: #FFFFFF; }
.modal__note {
  margin: 0; padding: 10px 18px; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 10px; letter-spacing: .08em; color: var(--muted);
}

/* ---------- animaciones de entrada ---------- */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transform: none; transition: opacity .45s ease; }
  .btn:hover, .card:hover, .cta:hover, .cta:hover .arrow { transform: none; }
  .prow:hover { padding-left: 4px; }
}

/* ---------- adaptación a pantallas ---------- */

@media (min-width: 821px) and (max-width: 1100px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step { border-right: none; padding-left: 0; padding-right: 18px; }
}

@media (max-width: 820px) {
  .wrap, .hero, .doc { padding-left: 22px; padding-right: 22px; }
  .hero { padding-top: 64px; padding-bottom: 60px; }
  .nav__link:not(:last-child) { display: none; }
  .topbar--static .nav__link { display: inline; }
  .metrics { flex-direction: column; gap: 10px; }
  .cards, .steps, .about, .contact__inner { grid-template-columns: 1fr; }
  .contact__inner { gap: 36px; }
  .about { gap: 28px; }
  .steps { border-top: none; }
  .step { border-right: none; border-top: 1px solid var(--line); padding: 22px 0 24px; }
  .prow { grid-template-columns: 1fr 1fr; gap: 6px 18px; }
  .prow--head { display: none; }
  .footer__inner { flex-direction: column; align-items: flex-start; gap: 14px; }
  .modal { padding: 0; }
  .modal__box { max-height: 100%; }
  .photo img { height: 380px; }
}