/* Layout: a sticky full-bleed 3D stage (the digital twin) with hero + product panels scrolling over it,
   then quiet blueprint-ruled content sections. Dark-first "control room"; light = drafting paper. */
:root {
  color-scheme: dark;
  --bg: #0c110f;
  --bg-alt: #111815;
  --surface: rgba(18, 25, 22, .82);
  --surface-solid: #141c18;
  --line: #24302a;
  --line-soft: #1a231f;
  --fg: #e6ebe4;
  --muted: #94a199;
  --brand: #88ac3e;
  --accent: #a3c65a;
  --on-brand: #0d1209;
  --steel: #73777a;
  --twin-line: #5c6a63;
  --twin-fill: #151d19;
  --twin-ground: #0f1512;
  --shadow: 0 20px 50px rgba(0, 0, 0, .45);

  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --s-xs: .75rem; --s-sm: .875rem; --s-md: 1rem; --s-lg: 1.25rem;
  --s-xl: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem);
  --s-2xl: clamp(2.3rem, 1.4rem + 3.8vw, 4.6rem);
  --radius: 4px;
  --maxw: 1240px;
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #eef1ec; --bg-alt: #e5eae2; --surface: rgba(255, 255, 255, .86); --surface-solid: #ffffff;
    --line: #cdd5c9; --line-soft: #dde3d9; --fg: #141a16; --muted: #56615a;
    --brand: #88ac3e; --accent: #557417; --on-brand: #0d1209; --steel: #73777a;
    --twin-line: #8d9891; --twin-fill: #fbfcfa; --twin-ground: #e7ece4;
    --shadow: 0 18px 40px rgba(40, 55, 35, .14);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eef1ec; --bg-alt: #e5eae2; --surface: rgba(255, 255, 255, .86); --surface-solid: #ffffff;
  --line: #cdd5c9; --line-soft: #dde3d9; --fg: #141a16; --muted: #56615a;
  --brand: #88ac3e; --accent: #557417; --on-brand: #0d1209; --steel: #73777a;
  --twin-line: #8d9891; --twin-fill: #fbfcfa; --twin-ground: #e7ece4;
  --shadow: 0 18px 40px rgba(40, 55, 35, .14);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 var(--s-md)/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px);
  z-index: 60; background: var(--bg);
}
img { max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
h1, h2, h3 { font-family: var(--f-display); font-stretch: 112%; line-height: 1.05; margin: 0; text-wrap: balance; letter-spacing: -.01em; }
p { margin: 0; }
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.sel { user-select: all; }

.wrap { max-width: var(--maxw); margin-inline: auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r); }

.eyebrow {
  font: 500 var(--s-xs)/1.2 var(--f-mono); letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); display: flex; align-items: center; gap: .6rem;
}
.eyebrow::before { content: ""; width: 18px; height: 2px; background: var(--brand); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 44px; padding: 0 1.2rem; border-radius: var(--radius);
  font: 600 var(--s-sm)/1 var(--f-body); letter-spacing: .01em; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; transition: background .2s, border-color .2s, transform .2s;
}
.btn-sm { min-height: 36px; padding: 0 .9rem; font-size: var(--s-xs); }
.btn-solid { background: var(--brand); color: var(--on-brand); }
.btn-solid:hover { background: var(--accent); color: var(--bg); }
.btn-ghost { border-color: var(--line); color: var(--fg); background: var(--surface); }
.btn-ghost:hover { border-color: var(--brand); }

/* Nav */
.nav {
  position: fixed; top: env(safe-area-inset-top, 0px); left: 0; right: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-in {
  max-width: var(--maxw); margin-inline: auto; height: 64px;
  padding-left: var(--gutter-l); padding-right: var(--gutter-r);
  display: flex; align-items: center; gap: 1.5rem;
}
.logo { display: flex; align-items: center; gap: .7rem; text-decoration: none; flex-shrink: 0; }
.logo svg { width: 92px; height: 24px; display: block; }
.logo-g { fill: var(--steel); }
.logo-x { fill: var(--brand); }
.logo-sub { font: 500 .62rem/1.15 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.nav-links { display: flex; gap: 1.4rem; margin-left: auto; }
.nav-links a { text-decoration: none; font-size: var(--s-sm); color: var(--muted); transition: color .2s; }
.nav-links a:hover { color: var(--fg); }
.nav-tools { display: flex; align-items: center; gap: .6rem; }
.lang {
  display: flex; border: 1px solid var(--line); border-radius: var(--radius); background: none; padding: 2px; cursor: pointer;
  font: 500 var(--s-xs)/1 var(--f-mono);
}
.lang span { padding: .35rem .45rem; color: var(--muted); border-radius: 2px; }
html[lang="es"] .lang [data-l="es"], html[lang="en"] .lang [data-l="en"] { background: var(--line); color: var(--fg); }
@media (max-width: 920px) { .nav-links { display: none; } .nav-tools { margin-left: auto; } }
@media (max-width: 420px) { .logo-sub { display: none; } }

/* ---- Digital twin ---- */
.twin { position: relative; }
.twin-stage {
  position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden;
  background:
    radial-gradient(ellipse 70% 60% at 62% 55%, color-mix(in srgb, var(--brand) 9%, transparent), transparent 70%),
    var(--bg);
}
.twin-stage::after {
  /* blueprint ruling behind the scene; visible if WebGL is unavailable */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 60% 50%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 60% 50%, #000 20%, transparent 75%);
  opacity: .55; z-index: 0;
}
#twin-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; z-index: 1; cursor: grab; touch-action: pan-y; }
#twin-canvas.dragging { cursor: grabbing; }
.twin-tags { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.twin-tag {
  position: absolute; left: 0; top: 0; pointer-events: auto; cursor: pointer;
  display: inline-flex; align-items: center; gap: .4rem; white-space: nowrap;
  font: 500 .68rem/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase;
  padding: .38rem .55rem; border-radius: 2px; color: var(--muted);
  background: color-mix(in srgb, var(--bg) 70%, transparent); border: 1px solid var(--line);
  transform: translate(-50%, -100%); opacity: 0; transition: opacity .3s, color .3s, border-color .3s;
}
.twin-tag i { width: 6px; height: 6px; border-radius: 50%; background: var(--steel); transition: background .3s; }
.twin-tag.on { opacity: 1; }
.twin-tag.active { color: var(--fg); border-color: var(--brand); }
.twin-tag.active i { background: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 30%, transparent); }
.twin-hud {
  position: absolute; z-index: 3; bottom: 18px; right: var(--gutter-r);
  display: flex; gap: 1rem; flex-wrap: wrap; justify-content: flex-end;
  font: 500 .68rem/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}
.hud-live { display: inline-flex; align-items: center; gap: .4rem; }
.hud-live i { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); animation: pulse 1.8s infinite; }
.hud-zone { color: var(--fg); }
@keyframes pulse { 50% { opacity: .25; } }
@media (hover: none) { .hud-hint { display: none; } }

.twin-scroll { position: relative; z-index: 4; margin-top: -100vh; margin-top: -100svh; pointer-events: none; }
.twin-scroll a, .twin-scroll button, .panel-card, .hero .wrap > * { pointer-events: auto; }

.hero { min-height: 100vh; min-height: 100svh; display: flex; align-items: flex-end; padding-block: 120px 72px; }
.hero { background: linear-gradient(90deg, var(--bg) 0, color-mix(in srgb, var(--bg) 70%, transparent) 34%, transparent 58%); }
.hero .wrap { width: 100%; display: grid; gap: 1.4rem; }
.hero h1 { font-size: var(--s-2xl); font-weight: 700; max-width: 13ch; }
.hero .lede { max-width: 52ch; color: var(--muted); font-size: var(--s-lg); line-height: 1.5; }
.hero .lede, .hero h1, .hero .eyebrow { text-shadow: 0 1px 24px var(--bg); }
.hero-cta { display: flex; flex-wrap: wrap; gap: .7rem; }
.stats {
  margin: 1.2rem 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line); max-width: 760px;
}
.stats div { padding: .9rem 1rem .2rem 0; display: flex; flex-direction: column-reverse; gap: .25rem; }
.stats dd { margin: 0; font: 700 var(--s-xl)/1 var(--f-display); font-stretch: 118%; color: var(--fg); font-variant-numeric: tabular-nums; }
.stats dt { font-size: var(--s-xs); color: var(--muted); line-height: 1.35; }
@media (max-width: 640px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.panel {
  min-height: 100vh; min-height: 100svh; display: flex; align-items: center;
  max-width: var(--maxw); margin-inline: auto;
  padding-left: var(--gutter-l); padding-right: var(--gutter-r);
}
.panel-card {
  width: min(440px, 100%); display: grid; gap: .9rem;
  padding: 1.6rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: var(--shadow);
  border-top: 2px solid var(--brand);
  transition: opacity .5s, transform .5s;
}
.zone-code { font: 500 var(--s-xs)/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.panel h2 { font-size: var(--s-xl); font-weight: 750; }
.panel-kind { font-weight: 600; }
.panel-card > p:not(.zone-code):not(.panel-kind) { color: var(--muted); }
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.chips li { font: 500 .72rem/1 var(--f-mono); padding: .4rem .55rem; border: 1px solid var(--line); border-radius: 2px; color: var(--muted); }
.telemetry { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 2px; }
.telemetry div { padding: .6rem .7rem; display: grid; gap: .3rem; min-width: 0; }
.telemetry div + div { border-left: 1px solid var(--line); }
.telemetry span { font-size: .68rem; line-height: 1.25; color: var(--muted); }
.telemetry b { font: 500 var(--s-md)/1 var(--f-mono); font-variant-numeric: tabular-nums; color: var(--fg); overflow-wrap: anywhere; }
.panel-links { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.panel-links a { font-weight: 600; font-size: var(--s-sm); color: var(--accent); text-decoration: none; }
.panel-links a::after { content: " ↗"; }
.panel-links a:hover { text-decoration: underline; text-underline-offset: 3px; }
.twin-tail { height: 30vh; }
@media (max-width: 760px) {
  .panel { align-items: flex-end; padding-block: 0 4vh; }
  .panel-card { padding: 1.2rem; gap: .7rem; }
  .hero { padding-block: 96px 40px; background: linear-gradient(0deg, var(--bg) 42%, color-mix(in srgb, var(--bg) 55%, transparent) 70%, transparent 88%); }
}

/* ---- Content sections ---- */
.content { position: relative; z-index: 5; background: var(--bg); }
.sec { padding-block: clamp(64px, 9vw, 120px); border-top: 1px solid var(--line-soft); }
.sec-alt { background: var(--bg-alt); }
.sec-head { display: grid; gap: 1rem; margin-bottom: clamp(32px, 5vw, 56px); max-width: 760px; }
.sec h2 { font-size: var(--s-xl); font-weight: 700; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.steps li { padding: 1.4rem 1.4rem 0 0; display: grid; gap: .6rem; align-content: start; position: relative; }
.steps li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; background: var(--brand); border-radius: 50%; }
.step-n { font: 500 var(--s-xs)/1 var(--f-mono); color: var(--accent); letter-spacing: .1em; }
.steps h3 { font-size: var(--s-lg); font-weight: 700; }
.steps p { color: var(--muted); font-size: var(--s-sm); }
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; border-top: 0; border-left: 1px solid var(--line); padding-left: 1.4rem; gap: 1.6rem; }
  .steps li { padding: 0; }
  .steps li::before { top: .15rem; left: calc(-1.4rem - 5px); }
}

.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-solid); }
.ind { width: 100%; border-collapse: collapse; min-width: 560px; font-size: var(--s-sm); }
.ind th, .ind td { padding: .85rem 1rem; text-align: left; border-bottom: 1px solid var(--line-soft); }
.ind thead th { font: 500 var(--s-xs)/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.ind tbody th { font-weight: 600; }
.ind td { text-align: center; color: var(--line); }
.ind thead th:not(:first-child) { text-align: center; }
.ind td.y { color: var(--brand); }
.ind tbody tr:last-child > * { border-bottom: 0; }
.ind tbody tr:hover { background: color-mix(in srgb, var(--brand) 6%, transparent); }

.about { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.about-text { display: grid; gap: 1.1rem; }
.about-text > p:not(.eyebrow) { color: var(--muted); max-width: 58ch; }
.about-links { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: .4rem; }
.lineup { list-style: none; margin: 0; padding: 0; display: grid; border-top: 1px solid var(--line); }
.lineup li { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.lineup b { font: 500 var(--s-sm)/1.4 var(--f-mono); color: var(--accent); }
.lineup span { color: var(--muted); font-size: var(--s-sm); }
@media (max-width: 860px) { .about { grid-template-columns: 1fr; } }
@media (max-width: 460px) { .lineup li { grid-template-columns: 1fr; gap: .25rem; } }

.contact { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 96px); }
.contact-info { display: grid; gap: 1.1rem; align-content: start; }
.contact-info > p:not(.eyebrow) { color: var(--muted); }
.offices { list-style: none; margin: .4rem 0 0; padding: 0; display: grid; border-top: 1px solid var(--line); }
.offices li { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.office-c { font-weight: 600; }
.address { font-size: var(--s-sm); }
.form {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem;
  padding: clamp(20px, 3vw, 32px); background: var(--surface-solid); border: 1px solid var(--line); border-radius: var(--radius);
}
.field { display: grid; gap: .4rem; min-width: 0; border: 0; margin: 0; padding: 0; }
.field-wide { grid-column: 1 / -1; }
.field label, .field legend { font: 500 var(--s-xs)/1.2 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 0; margin-bottom: .4rem; }
.field input, .field textarea {
  width: 100%; font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .7rem .8rem; min-height: 44px;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 25%, transparent); }
.field [aria-invalid="true"] { border-color: #d0644e; }
.pick { display: flex; flex-wrap: wrap; gap: .5rem; }
.pick label { cursor: pointer; text-transform: none; letter-spacing: 0; margin: 0; }
.pick input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.pick span { display: inline-block; padding: .55rem .8rem; border: 1px solid var(--line); border-radius: 2px; font: 500 var(--s-sm)/1 var(--f-body); color: var(--fg); transition: all .15s; }
.pick input:checked + span { background: var(--brand); border-color: var(--brand); color: var(--on-brand); }
.pick input:focus-visible + span { outline: 2px solid var(--brand); outline-offset: 2px; }
.form-foot { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.form-status { font-size: var(--s-sm); color: var(--muted); }
.form-status.ok { color: var(--accent); }
.form-status.err { color: #d0644e; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .form { grid-template-columns: 1fr; } }

.foot { border-top: 1px solid var(--line); background: var(--bg); position: relative; z-index: 5; }
.foot-in { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; padding-block: 56px 32px; }
.foot-col { display: grid; gap: .55rem; align-content: start; }
.foot-col h3 { font: 500 var(--s-xs)/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: .4rem; }
.foot-col a { text-decoration: none; font-size: var(--s-sm); }
.foot-col a:hover { color: var(--accent); }
.foot-base { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block: 20px 28px; border-top: 1px solid var(--line-soft); font-size: var(--s-xs); color: var(--muted); }
@media (max-width: 720px) { .foot-in { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

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