/* Proyectos Lemaca — hoja de estilos
   Concepto: lámina de ingeniería. Bandas azul marino (el plano) alternan con papel claro;
   el naranja del logo marca solo lo esencial. Retícula de 12 columnas, máx. 1200px. */

:root {
  /* Color */
  --paper: #f3f5f8;
  --surface: #ffffff;
  --tint: #e9edf2;
  --ink: #13243a;
  --text: #2c3b4e;
  --muted: #5e6c7d;
  --line: #d3dae2;
  --navy: #13263f;
  --navy-2: #1b3453;
  --navy-line: #2d4a6d;
  --on-navy: #eef2f7;
  --on-navy-muted: #a8b6c8;
  --accent: #e0832a;
  --accent-ink: #b05a12;
  --accent-soft: #f7e3cf;
  --tile: #e4e9ef;
  --focus: #e0832a;
  --shadow: 0 1px 2px rgb(19 36 58 / 6%), 0 8px 24px rgb(19 36 58 / 8%);

  /* Tipografía */
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --step--1: 0.8125rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: 1.625rem;
  --step-3: clamp(1.75rem, 1.3rem + 1.8vw, 2.5rem);
  --step-4: clamp(2.1rem, 1.4rem + 3vw, 3.6rem);

  --wrap: 1200px;
  --gutter: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  --section-y: clamp(3.5rem, 2.5rem + 4vw, 6.5rem);
  --radius: 4px;
  --header-h: 68px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0d1623;
    --surface: #132033;
    --tint: #101b2b;
    --ink: #eef2f7;
    --text: #cbd5e1;
    --muted: #93a2b5;
    --line: #26384f;
    --navy: #0a1422;
    --navy-2: #13233a;
    --navy-line: #2a4263;
    --on-navy: #eef2f7;
    --on-navy-muted: #a3b2c5;
    --accent: #ee9548;
    --accent-ink: #f2a764;
    --accent-soft: #3a2a1c;
    --tile: #1a2a40;
    --focus: #ee9548;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 30%);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0d1623;
  --surface: #132033;
  --tint: #101b2b;
  --ink: #eef2f7;
  --text: #cbd5e1;
  --muted: #93a2b5;
  --line: #26384f;
  --navy: #0a1422;
  --navy-2: #13233a;
  --navy-line: #2a4263;
  --on-navy: #eef2f7;
  --on-navy-muted: #a3b2c5;
  --accent: #ee9548;
  --accent-ink: #f2a764;
  --accent-soft: #3a2a1c;
  --tile: #1a2a40;
  --focus: #ee9548;
  --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 24px rgb(0 0 0 / 30%);
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 60;
  background: var(--navy);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-stretch: 110%;
  color: var(--ink);
  line-height: 1.15;
  margin: 0;
  text-wrap: balance;
  letter-spacing: -0.01em;
}
h2 { font-size: var(--step-3); font-weight: 700; }
h3 { font-size: var(--step-1); font-weight: 650; }
h4 { font-size: 1.0625rem; font-weight: 650; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 2px; }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip {
  position: absolute; left: 16px; top: -100px; z-index: 100;
  background: var(--accent); color: #13243a; padding: 10px 16px; font-weight: 600; text-decoration: none;
}
.skip:focus { top: calc(env(safe-area-inset-top, 0px) + 10px); }

.wrap {
  max-width: calc(var(--wrap) + 2 * 16px);
  margin-inline: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter-r);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 0.9rem;
}
.eyebrow--on-dark { color: var(--accent); }
.lead { font-size: 1.1875rem; line-height: 1.6; color: var(--text); max-width: 68ch; }
.side-title {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.1rem;
}
.side-title--on-dark { color: var(--on-navy-muted); border-color: var(--navy-line); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 48px; padding: 0 1.4rem;
  font-family: var(--font-display); font-stretch: 105%; font-weight: 600; font-size: 1rem;
  text-decoration: none; border-radius: var(--radius); border: 1px solid transparent; cursor: pointer;
  transition: background-color .2s, border-color .2s, color .2s;
}
.btn--accent { background: var(--accent); color: #13243a; }
.btn--accent:hover { background: #f09a4a; }
.btn--ghost { border-color: var(--navy-line); color: var(--on-navy); }
.btn--ghost:hover { border-color: var(--on-navy-muted); background: rgb(255 255 255 / 5%); }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: var(--navy);
  border-bottom: 1px solid var(--navy-line);
}
.header-row { display: flex; align-items: center; gap: 0.75rem; min-height: var(--header-h); }
.brand img { width: 150px; height: auto; }
.nav { display: flex; align-items: center; gap: 0.25rem; }
.nav a {
  color: var(--on-navy-muted); text-decoration: none; font-size: 0.9375rem; font-weight: 500;
  padding: 0.5rem 0.75rem; border-radius: var(--radius); transition: color .2s;
}
.nav a:hover, .nav a[aria-current="true"] { color: var(--on-navy); }
.nav a[aria-current="true"] { box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.nav .nav-cta { background: var(--accent); color: #13243a; margin-left: 0.5rem; font-weight: 600; }
.nav .nav-cta:hover { color: #13243a; background: #f09a4a; }
.nav .nav-cta[aria-current="true"] { box-shadow: none; border-radius: var(--radius); }
.nav-toggle { display: none; }

/* Selector de idioma */
.lang { display: inline-flex; border: 1px solid var(--navy-line); border-radius: var(--radius); padding: 2px; gap: 2px; flex-shrink: 0; }
.lang button {
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em;
  min-width: 40px; min-height: 36px; padding: 0 0.5rem;
  background: transparent; color: var(--on-navy-muted); border: 0; border-radius: 2px; cursor: pointer;
  transition: background-color .15s, color .15s;
}
.lang button:hover { color: var(--on-navy); }
.lang button[aria-pressed="true"] { background: var(--on-navy); color: var(--navy); }
.brand { margin-right: auto; }
@media (min-width: 961px) { .lang { margin-left: 0.25rem; } }

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 48px; height: 48px; background: transparent; border: 1px solid var(--navy-line);
    border-radius: var(--radius); cursor: pointer;
  }
  .nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
    display: block; width: 20px; height: 2px; background: var(--on-navy); position: relative; transition: transform .2s;
  }
  .nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
  .nav-toggle-bars::before { top: -6px; }
  .nav-toggle-bars::after { top: 6px; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { transform: translateY(-6px) rotate(-45deg); }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--navy); border-bottom: 1px solid var(--navy-line);
    padding: 0.5rem var(--gutter-r) 1rem var(--gutter);
  }
  .nav:not(.is-open) { display: none; }
  .nav a { padding: 0.85rem 0.25rem; border-bottom: 1px solid var(--navy-line); border-radius: 0; }
  .nav a[aria-current="true"] { box-shadow: none; color: var(--accent); }
  .nav .nav-cta { margin: 0.9rem 0 0; text-align: center; border-radius: var(--radius); border-bottom: 0; }
}

/* ---------- Hero ---------- */
.hero {
  background: var(--navy);
  color: var(--on-navy);
  padding-block: clamp(2.5rem, 1.5rem + 4vw, 5rem) clamp(2rem, 1rem + 3vw, 3.5rem);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}
.hero h1 {
  color: var(--on-navy);
  font-size: var(--step-4);
  font-weight: 700;
  font-stretch: 112%;
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 17ch;
}
.hero-lead { color: var(--on-navy-muted); font-size: 1.1875rem; margin-top: 1.5rem; max-width: 58ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

.hero-drawing {
  margin: 0;
  position: relative;
  border: 1px solid var(--navy-line);
  background:
    linear-gradient(var(--navy-line) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--navy-line) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--navy-2);
  background-blend-mode: normal;
  aspect-ratio: 4 / 5;
  max-width: 100%;
  display: flex; flex-direction: column;
}
.hero-drawing::before {
  /* margen interior de la lámina */
  content: ""; position: absolute; inset: 10px; border: 1px solid var(--navy-line); pointer-events: none;
}
.hero-drawing canvas { flex: 1; width: 100%; min-height: 0; display: block; }
.title-block {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  margin: 0 10px 10px;
  border-top: 1px solid var(--navy-line);
  background: var(--navy);
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--on-navy);
}
.tb-cell { padding: 0.45rem 0.6rem; border-left: 1px solid var(--navy-line); border-bottom: 1px solid var(--navy-line); min-width: 0; }
.tb-cell:nth-child(3n+1) { border-left: 0; }
.tb-cell:nth-last-child(-n+3) { border-bottom: 0; }
.tb-cell em { display: block; font-style: normal; font-size: 0.625rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-navy-muted); }

.facts {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: clamp(2.5rem, 4vw, 3.5rem) 0 0;
  border-top: 1px solid var(--navy-line);
}
.fact { padding: 1.25rem 1.25rem 0 0; }
.fact + .fact { padding-left: 1.25rem; border-left: 1px solid var(--navy-line); }
.fact dt { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-navy-muted); }
.fact dd { margin: 0.35rem 0 0; font-family: var(--font-display); font-stretch: 110%; font-size: 1.125rem; font-weight: 600; color: var(--on-navy); }
.fact strong { font-size: clamp(2.2rem, 1.6rem + 2vw, 3rem); font-weight: 750; color: var(--accent); line-height: 1; margin-right: 0.15em; font-variant-numeric: tabular-nums; }
.fact dd span { display: block; font-family: var(--font-body); font-stretch: 100%; font-size: 0.9375rem; font-weight: 400; color: var(--on-navy-muted); margin-top: 0.35rem; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-drawing { aspect-ratio: auto; height: 440px; max-width: 520px; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact:nth-child(3) { border-left: 0; padding-left: 0; }
  .fact { padding-bottom: 1.25rem; }
  .fact:nth-child(n+3) { border-top: 1px solid var(--navy-line); }
}
@media (max-width: 460px) {
  .hero-drawing { height: 380px; }
  .fact strong { font-size: 2rem; }
}

/* ---------- Secciones ---------- */
.section { padding-block: var(--section-y); }
.section--tint { background: var(--tint); }
.section--navy { background: var(--navy); color: var(--on-navy); }
.section--navy h2, .section--navy h3, .section--navy h4 { color: var(--on-navy); }
.section-head { display: grid; gap: 0.9rem; margin-bottom: clamp(2rem, 4vw, 3rem); max-width: 72ch; }
.section-head .eyebrow { margin-bottom: 0; }

/* Empresa */
.split { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 5vw, 5rem); }
.split-main { display: grid; gap: 1.1rem; align-content: start; }
.split-main h2 { margin-bottom: 0.4rem; }
.split-main p:not(.eyebrow):not(.lead) { max-width: 66ch; }
.split-main .eyebrow { margin-bottom: 0; }
.marks { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; }
.marks li { padding-left: 1.4rem; position: relative; }
.marks li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 8px; height: 8px; background: var(--accent); }
.marks strong { display: block; color: var(--ink); font-weight: 600; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

/* Servicios */
.services {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.service { background: var(--surface); padding: 1.6rem 1.5rem 1.4rem; display: flex; flex-direction: column; gap: 0.6rem; min-width: 0; }
.service-tag { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.service h3 { font-size: 1.25rem; }
.service p:not(.service-tag):not(.soft) { color: var(--text); font-size: 1rem; }
.soft { margin-top: auto; padding-top: 0.6rem; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.soft span {
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; color: var(--accent-ink);
  border: 1px solid currentColor; border-radius: 2px; padding: 0.1rem 0.45rem;
}
@media (max-width: 960px) { .services { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .services { grid-template-columns: 1fr; } }

.process { margin-top: clamp(2.5rem, 5vw, 4rem); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1.5rem; counter-reset: none; }
.steps li { display: grid; gap: 0.75rem; align-content: start; position: relative; }
.step-n {
  font-family: var(--font-mono); font-weight: 500; font-size: 0.875rem; color: var(--ink);
  width: 34px; height: 34px; display: grid; place-items: center; border: 1.5px solid var(--ink); border-radius: 50%;
  background: var(--tint); position: relative; z-index: 1;
}
.steps li:not(:last-child)::after {
  content: ""; position: absolute; top: 17px; left: 34px; right: -1.5rem; height: 1.5px; background: var(--line);
}
.steps strong { color: var(--ink); font-family: var(--font-display); font-stretch: 105%; font-weight: 650; }
.steps p { font-size: 0.9375rem; color: var(--muted); margin-top: 0.25rem; }
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr; gap: 1.25rem; }
  .steps li { grid-template-columns: 34px minmax(0, 1fr); gap: 1rem; }
  .steps li:not(:last-child)::after { top: 34px; bottom: -1.25rem; left: 16px; right: auto; width: 1.5px; height: auto; }
}

/* Director */
.director { display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.director-photo { margin: 0; position: relative; }
.director-photo img { width: 100%; border: 1px solid var(--navy-line); filter: saturate(0.9); }
.director-photo::after {
  content: ""; position: absolute; left: 14px; top: 14px; right: -14px; bottom: -14px;
  border: 1px solid var(--accent); z-index: -1;
}
.director-photo { z-index: 0; }
.director h2 { font-size: var(--step-4); font-stretch: 112%; letter-spacing: -0.02em; }
.director-role { font-family: var(--font-display); font-stretch: 105%; color: var(--accent); font-weight: 600; font-size: 1.125rem; margin-top: 0.5rem; }
.director-intro { color: var(--on-navy-muted); margin-top: 1.25rem; max-width: 64ch; font-size: 1.0625rem; }
.cajetin {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 2rem 0 0; border: 1px solid var(--navy-line);
}
.cajetin div { padding: 0.75rem 0.9rem; border-right: 1px solid var(--navy-line); border-bottom: 1px solid var(--navy-line); min-width: 0; }
.cajetin div:nth-child(3n) { border-right: 0; }
.cajetin div:nth-last-child(-n+3) { border-bottom: 0; }
.cajetin dt { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-navy-muted); }
.cajetin dd { margin: 0.2rem 0 0; font-weight: 600; color: var(--on-navy); }
@media (max-width: 800px) {
  .director { grid-template-columns: 1fr; }
  .director-photo { max-width: 260px; }
  .cajetin { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cajetin div:nth-child(3n) { border-right: 1px solid var(--navy-line); }
  .cajetin div:nth-child(2n) { border-right: 0; }
  .cajetin div:nth-last-child(-n+3) { border-bottom: 1px solid var(--navy-line); }
  .cajetin div:nth-last-child(-n+2) { border-bottom: 0; }
}

/* Barra de trayectoria a escala: 50 años = 100% */
.span-chart { margin-top: clamp(3rem, 6vw, 4.5rem); }
.span-title { font-size: var(--step-1); margin-bottom: 1.5rem; }
.span-scroll { overflow-x: auto; padding-bottom: 0.5rem; }
.span { position: relative; min-width: 720px; --yr: calc(100% / 50); }
.span-bars { position: relative; height: 18px; background: var(--navy-2); }
.bar { position: absolute; top: 0; bottom: 0; left: calc(var(--from) * var(--yr)); width: calc((var(--to) - var(--from)) * var(--yr)); border-right: 2px solid var(--navy); }
.bar--a { background: #3a5a80; }
.bar--b { background: #4d6e94; }
.bar--c { background: #5f7fa3; }
.bar--d { background: #7d97b6; }
.bar--e { background: #9db1c8; }
.bar--f { background: var(--accent); }
.span-labels { list-style: none; margin: 0; padding: 0; position: relative; height: 5.2rem; }
.span-labels li {
  position: absolute; top: 0; left: calc(var(--from) * var(--yr)); width: calc((var(--to) - var(--from)) * var(--yr));
  padding: 0.6rem 0.6rem 0 0.5rem; border-left: 1px solid var(--navy-line);
  font-size: 0.875rem; line-height: 1.3; color: var(--on-navy-muted);
}
.span-labels b { display: block; font-family: var(--font-mono); font-weight: 500; font-size: 0.75rem; color: var(--on-navy); margin-bottom: 0.15rem; }
.span-labels li:last-child b { color: var(--accent); }
.span-axis { position: relative; height: 1.6rem; border-top: 1px solid var(--navy-line); margin-top: 0.5rem; }
.span-axis span {
  position: absolute; left: calc(var(--at) * var(--yr)); top: 0; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--on-navy-muted); padding-top: 0.35rem; font-variant-numeric: tabular-nums;
}
.span-axis span::before { content: ""; position: absolute; left: 50%; top: -1px; width: 1px; height: 6px; background: var(--on-navy-muted); }
.span-axis span:first-child { transform: none; }
.span-axis span:first-child::before { left: 0; }
.span-axis span:last-child { transform: translateX(-100%); }
.span-axis span:last-child::before { left: auto; right: 0; }
.span-sector { position: relative; height: 1.8rem; margin-top: 0.4rem; }
.span-sector span {
  position: absolute; left: calc(var(--from) * var(--yr)); width: calc((var(--to) - var(--from)) * var(--yr));
  border-top: 2px solid var(--accent); padding-top: 0.3rem;
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--accent);
}
.span-sector span::before, .span-sector span::after { content: ""; position: absolute; top: -6px; width: 2px; height: 10px; background: var(--accent); }
.span-sector span::before { left: 0; }
.span-sector span::after { right: 0; }

/* Obras de referencia */
.landmarks { margin-top: clamp(3rem, 6vw, 4.5rem); }
.landmark-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--navy-line); border: 1px solid var(--navy-line); }
.landmark { background: var(--navy); padding: 1.5rem 1.4rem; display: grid; gap: 0.6rem; align-content: start; }
.landmark-years { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--accent); font-variant-numeric: tabular-nums; }
.landmark h4 { font-size: 1.1875rem; }
.landmark p:not(.landmark-years) { color: var(--on-navy-muted); font-size: 0.9375rem; }
@media (max-width: 1000px) { .landmark-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .landmark-grid { grid-template-columns: 1fr; } }

/* CV */
.cv-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(2rem, 5vw, 5rem); }
.cv-main h2 { margin-bottom: 2.25rem; }
.era + .era { margin-top: 2.75rem; }
.era-title {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem 1rem;
  font-size: 1.3125rem; padding-bottom: 0.8rem; border-bottom: 2px solid var(--ink); margin-bottom: 0.5rem;
}
.era-title span { font-family: var(--font-mono); font-size: 0.875rem; font-weight: 500; color: var(--accent-ink); font-stretch: 100%; letter-spacing: 0; }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: 1.25rem; padding: 1.15rem 0; border-bottom: 1px solid var(--line); }
.tl-year { font-family: var(--font-mono); font-size: 0.875rem; color: var(--ink); font-weight: 500; padding-top: 0.1rem; font-variant-numeric: tabular-nums; }
.tl-body { display: grid; gap: 0.35rem; }
.tl-body h4 { color: var(--ink); }
.tl-org { font-style: italic; color: var(--muted); font-size: 0.9375rem; }
.tl-body p:not(.tl-org) { font-size: 0.9875rem; }
@media (max-width: 560px) { .timeline li { grid-template-columns: 1fr; gap: 0.35rem; } }

.cv-side { display: grid; gap: 2.25rem; align-content: start; }
.dated { margin: 0; display: grid; gap: 0.8rem; }
.dated div { display: grid; grid-template-columns: 3.25rem minmax(0, 1fr); gap: 0.75rem; }
.dated dt { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--accent-ink); font-weight: 500; padding-top: 0.15rem; font-variant-numeric: tabular-nums; }
.dated dd { margin: 0; font-size: 0.9375rem; line-height: 1.5; }
.plain { margin: 0; padding-left: 1.1rem; display: grid; gap: 0.5rem; font-size: 0.9375rem; line-height: 1.5; }
.plain li::marker { color: var(--accent); }
@media (max-width: 900px) { .cv-grid { grid-template-columns: 1fr; } }

/* Proyectos */
.filter { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.25rem; }
.chip {
  font: inherit; font-size: 0.875rem; font-weight: 500;
  display: inline-flex; align-items: center; gap: 0.45rem;
  min-height: 38px; padding: 0 0.85rem;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
  border-radius: 999px; cursor: pointer; transition: border-color .15s, background-color .15s, color .15s;
}
.chip:hover { border-color: var(--muted); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chip b { font-family: var(--font-mono); font-weight: 500; font-size: 0.75rem; opacity: 0.75; font-variant-numeric: tabular-nums; }

.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--line); }
.projects { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.projects th {
  text-align: left; font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); padding: 0.85rem 1rem; border-bottom: 2px solid var(--ink); white-space: nowrap;
}
.projects td { padding: 0.8rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; line-height: 1.45; }
.projects tbody tr:last-child td { border-bottom: 0; }
.projects tbody tr:hover td { background: var(--tint); }
.projects td:first-child { font-family: var(--font-mono); font-size: 0.875rem; white-space: nowrap; color: var(--ink); font-variant-numeric: tabular-nums; }
.projects td:nth-child(3) { color: var(--ink); font-weight: 500; }
.projects td:nth-child(4) { color: var(--muted); }
.projects td:last-child { white-space: nowrap; }
.projects td.none { color: var(--line); }
.kv {
  display: inline-block; font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; white-space: nowrap;
  padding: 0.12rem 0.45rem; border-radius: 2px; background: var(--accent-soft); color: var(--accent-ink);
}
.kv--tel, .kv--test, .kv--var { background: var(--tint); color: var(--muted); }
.table-note { margin-top: 0.9rem; font-size: 0.875rem; color: var(--muted); font-family: var(--font-mono); }

@media (max-width: 720px) {
  .table-wrap { border: 0; background: transparent; overflow: visible; }
  .projects thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .projects, .projects tbody { display: block; }
  .projects tr {
    display: grid; grid-template-columns: auto auto minmax(0, 1fr); gap: 0.35rem 0.75rem; align-items: center;
    background: var(--surface); border: 1px solid var(--line); padding: 0.9rem 1rem; margin-bottom: 0.6rem;
  }
  .projects tr[hidden] { display: none; }
  .projects td { padding: 0; border: 0; }
  .projects tbody tr:hover td { background: transparent; }
  .projects td:nth-child(3), .projects td:nth-child(4) { grid-column: 1 / -1; }
  .projects td:last-child { grid-row: 1; grid-column: 3; justify-self: end; font-size: 0.8125rem; color: var(--muted); }
  .projects td.none { display: none; }
}

/* Proyecto destacado */
.feature { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; margin-bottom: 3rem; }
.feature-text { display: grid; gap: 1rem; }
.feature-text .eyebrow { margin-bottom: 0; }
.feature-text h2 { margin-bottom: 0.3rem; }
.spec { margin: 0.75rem 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.spec div { padding: 0.8rem 0; border-bottom: 1px solid var(--line); }
.spec div:nth-child(odd) { padding-right: 1rem; }
.spec dt { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.spec dd { margin: 0.2rem 0 0; color: var(--ink); font-weight: 500; font-size: 0.9875rem; }
@media (max-width: 900px) { .feature { grid-template-columns: 1fr; } }

.gallery figure, .types figure { margin: 0; min-width: 0; }
.zoom { display: block; width: 100%; padding: 0; border: 0; background: var(--tile); cursor: zoom-in; overflow: hidden; }
.zoom img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.zoom:hover img { transform: scale(1.03); }
@media (prefers-reduced-motion: reduce) { .zoom img { transition: none; } .zoom:hover img { transform: none; } }
.gallery figcaption, .types figcaption { font-size: 0.875rem; color: var(--muted); margin-top: 0.5rem; line-height: 1.4; }

.gallery--feature { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); grid-template-rows: auto auto; gap: 1rem; }
.gallery--feature .g-main { grid-row: span 2; }
.gallery--feature .g-main .zoom { aspect-ratio: 3 / 4.2; }
.gallery--feature figure:not(.g-main) .zoom { aspect-ratio: 4 / 3; }
.gallery--row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.gallery--row .zoom { aspect-ratio: 3 / 4; }
@media (max-width: 760px) { .gallery--row { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) {
  .gallery--feature { grid-template-columns: 1fr; }
  .gallery--feature .g-main { grid-row: auto; }
  .gallery--feature .g-main .zoom { aspect-ratio: 4 / 5; }
}

/* Reforzamiento */
.cases { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.case { background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; min-width: 0; }
.case-img { aspect-ratio: 16 / 10; }
.case-body { padding: 1.4rem 1.5rem 1.5rem; display: grid; gap: 0.5rem; }
.case-meta { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--accent-ink); }
.case-team { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--muted); padding-top: 0.6rem; margin-top: 0.3rem; border-top: 1px solid var(--line); }
@media (max-width: 760px) { .cases { grid-template-columns: 1fr; } }

/* Tipos de estructuras */
.types { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem 1rem; }
.types .zoom { aspect-ratio: 4 / 5; }
.types img.contain { object-fit: contain; padding: 0.5rem; }
@media (max-width: 900px) { .types { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 600px) { .types { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* Software */
.software { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2rem, 5vw, 4rem); }
.sw-list { margin: 0; display: grid; }
.sw-list div { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: 1rem; padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.sw-list div:first-child { padding-top: 0; }
.sw-list dt { font-family: var(--font-display); font-stretch: 110%; font-weight: 700; color: var(--ink); font-size: 1.0625rem; }
.sw-list dt span { display: block; font-family: var(--font-mono); font-stretch: 100%; font-weight: 400; font-size: 0.75rem; color: var(--accent-ink); }
.sw-list dd { margin: 0; font-size: 0.9375rem; color: var(--text); }
@media (max-width: 800px) { .software { grid-template-columns: 1fr; } }
@media (max-width: 420px) { .sw-list div { grid-template-columns: 1fr; gap: 0.2rem; } }

/* Equipo */
.team { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.team li { padding: 1.2rem 1rem 1.2rem 0; display: grid; gap: 0.3rem; align-content: start; min-width: 0; }
.team li + li { padding-left: 1rem; border-left: 1px solid var(--line); }
.team strong { font-family: var(--font-display); font-stretch: 108%; font-weight: 650; color: var(--ink); font-size: 1.125rem; line-height: 1.25; }
.team span { font-size: 0.9375rem; color: var(--muted); }
.team-lead span { color: var(--accent-ink); font-weight: 500; }
@media (max-width: 900px) {
  .team { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .team li, .team li + li { padding: 1rem 1rem 1rem 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .team-lead { grid-column: 1 / -1; }
}

/* Clientes */
.clients { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(2rem, 5vw, 4rem); }
.client-list { list-style: none; margin: 0; padding: 0; display: grid; }
.client-list li { padding: 0.7rem 0; border-bottom: 1px solid var(--line); color: var(--ink); font-weight: 500; display: flex; justify-content: space-between; gap: 1rem; }
.client-list span { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--muted); font-weight: 400; white-space: nowrap; padding-top: 0.1rem; }
.client-list--intl { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 2rem; }
.note { margin-top: 1rem; font-size: 0.875rem; color: var(--muted); }
@media (max-width: 900px) { .clients { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .client-list--intl { grid-template-columns: 1fr; } }

/* Contacto */
.contact { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.contact h2 { font-size: var(--step-4); font-stretch: 112%; letter-spacing: -0.02em; max-width: 14ch; }
.contact-lead { color: var(--on-navy-muted); margin-top: 1.25rem; max-width: 52ch; font-size: 1.125rem; }
.contact-list { margin: 0; display: grid; border-top: 1px solid var(--navy-line); }
.contact-list div { display: grid; grid-template-columns: 7rem minmax(0, 1fr); gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--navy-line); }
.contact-list dt { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-navy-muted); padding-top: 0.25rem; }
.contact-list dd { margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 0.9rem; font-size: 1.125rem; font-weight: 500; color: var(--on-navy); }
.contact-list dd span { flex-basis: 100%; font-size: 0.9375rem; font-weight: 400; color: var(--on-navy-muted); }
.contact-list a { color: var(--on-navy); text-decoration-color: var(--accent); text-underline-offset: 4px; overflow-wrap: anywhere; }
.copy {
  font: inherit; font-family: var(--font-mono); font-size: 0.75rem; color: var(--on-navy-muted);
  background: transparent; border: 1px solid var(--navy-line); border-radius: 2px; padding: 0.2rem 0.55rem; cursor: pointer; min-height: 30px;
}
.copy:hover { color: var(--on-navy); border-color: var(--on-navy-muted); }
@media (max-width: 480px) { .contact-list div { grid-template-columns: 1fr; gap: 0.3rem; } }

@media (max-width: 900px) { .contact { grid-template-columns: 1fr; } }

/* Pie */
.site-footer { background: var(--navy); color: var(--on-navy-muted); border-top: 1px solid var(--navy-line); padding-block: 2.5rem calc(2.5rem + env(safe-area-inset-bottom, 0px)); font-size: 0.9375rem; }
.footer-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 1.5rem 2.5rem; align-items: center; }
.footer-row img { width: 130px; }
.footer-legal { font-family: var(--font-mono); font-size: 0.8125rem; }
.footer-legal a { color: var(--on-navy-muted); }
@media (max-width: 800px) { .footer-row { grid-template-columns: 1fr; } }

/* Visor de imágenes */
.lightbox {
  border: 0; padding: 0; background: transparent; max-width: min(92vw, 1100px); max-height: 92vh; overflow: visible;
}
.lightbox::backdrop { background: rgb(8 14 24 / 88%); }
.lightbox figure { margin: 0; display: grid; gap: 0.75rem; justify-items: center; }
.lightbox img { max-height: 80vh; width: auto; max-width: 100%; object-fit: contain; background: var(--tile); }
.lightbox figcaption { color: #eef2f7; font-size: 0.9375rem; text-align: center; }
.lightbox-close {
  position: fixed; top: calc(16px + env(safe-area-inset-top, 0px)); right: calc(16px + env(safe-area-inset-right, 0px));
  font: inherit; font-weight: 600; color: #13243a; background: #e0832a; border: 0; border-radius: var(--radius);
  padding: 0.6rem 1rem; cursor: pointer;
}