/* AeroDRONIA — site styles
   Layout: dark industrial header/footer bands framing light, wide-gutter content sections;
   orange (from the logo) reserved for actions and markers. */
:root {
  --bg: #F3F4F5;
  --surface: #FFFFFF;
  --ink: #14171A;
  --muted: #56606A;
  --line: #D6DADF;
  --accent: #EC6D1D;          /* brand orange, sampled from the logo */
  --accent-ink: #A9490C;      /* orange for text on light surfaces */
  --on-accent: #14171A;
  --band: #121417;
  --band-2: #1B1E22;
  --band-ink: #E9ECEF;
  --band-muted: #A3ACB6;
  --band-line: #2C3137;
  --note: #FBEEE4;
  --todo-bg: #FFF3B8;
  --todo-ink: #4F3F00;
  --todo-line: #C9A400;
  --focus: #0B63CE;
  --err: #B3261E;
  --ok: #1E6B3A;

  --f-display: "Barlow Semi Condensed", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --f-body: "IBM Plex Sans", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --wrap: 1200px;
  --radius: 4px;
  --sec: clamp(56px, 7vw, 96px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0F1113; --surface: #171A1E; --ink: #E9ECEF; --muted: #A3ACB6; --line: #2C3137;
    --accent: #F07A2E; --accent-ink: #FF9A5C; --on-accent: #14171A;
    --band: #0A0B0D; --band-2: #14171A; --band-ink: #E9ECEF; --band-muted: #A3ACB6; --band-line: #262A30;
    --note: #2A1D13; --todo-bg: #3A3205; --todo-ink: #F6E58A; --todo-line: #8A7400;
    --focus: #6CB1FF; --err: #FF8A80; --ok: #7BD69B;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0F1113; --surface: #171A1E; --ink: #E9ECEF; --muted: #A3ACB6; --line: #2C3137;
  --accent: #F07A2E; --accent-ink: #FF9A5C; --on-accent: #14171A;
  --band: #0A0B0D; --band-2: #14171A; --band-ink: #E9ECEF; --band-muted: #A3ACB6; --band-line: #262A30;
  --note: #2A1D13; --todo-bg: #3A3205; --todo-ink: #F6E58A; --todo-line: #8A7400;
  --focus: #6CB1FF; --err: #FF8A80; --ok: #7BD69B;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1.0625rem/1.6 var(--f-body);
  -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(--band); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-ink); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
main:focus { outline: none; }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.08; margin: 0; text-wrap: balance; letter-spacing: -.005em; }
h1 { font-size: clamp(2.25rem, 1.4rem + 3.6vw, 3.9rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 1.25rem + 1.6vw, 2.5rem); font-weight: 600; }
h3 { font-size: 1.3rem; font-weight: 600; }
.h-sm { font-size: 1.5rem; }
p { margin: 0; }
.lead { font-size: 1.1875rem; color: var(--muted); max-width: 62ch; }
.lead-lg { font-size: clamp(1.25rem, 1rem + .9vw, 1.6rem); color: var(--ink); max-width: 46ch; line-height: 1.45; }
.eyebrow { font: 500 .75rem/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .14em; color: var(--accent-ink); margin-bottom: 14px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap {
  max-width: var(--wrap); margin: 0 auto;
  padding-left: max(24px, env(safe-area-inset-left, 0px));
  padding-right: max(24px, env(safe-area-inset-right, 0px));
}
@media (max-width: 480px) { .wrap { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); } }

.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--accent); color: var(--on-accent); padding: 10px 14px; font-weight: 600; border-radius: var(--radius); }
.skip:focus { top: calc(12px + env(safe-area-inset-top, 0px)); }

/* ---------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 10px 20px; border-radius: var(--radius);
  font: 600 1rem/1.2 var(--f-body); text-decoration: none; cursor: pointer;
  border: 1.5px solid transparent; transition: background-color .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 86%, #000); }
.btn-secondary { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-secondary:hover { background: var(--ink); color: var(--bg); }
.btn-ghost { border-color: var(--band-line); color: var(--band-ink); }
.btn-ghost:hover { border-color: var(--band-ink); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* ---------- header */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: var(--band); color: var(--band-ink); border-bottom: 1px solid var(--band-line); }
.hdr { display: flex; align-items: center; gap: 24px; min-height: 72px; }
.brand { flex: none; display: block; }
.brand img { width: 176px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 24px; flex: 1; justify-content: flex-end; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.site-nav nav a { display: block; white-space: nowrap; padding: 8px 9px; color: var(--band-ink); text-decoration: none; font-size: .9375rem; font-weight: 500; border-bottom: 2px solid transparent; }
.site-nav nav a:hover { color: #fff; border-bottom-color: var(--band-muted); }
.site-nav nav a[aria-current="page"] { border-bottom-color: var(--accent); }
.nav-extra { display: flex; align-items: center; gap: 18px; }
.nav-extra .btn { white-space: nowrap; min-height: 40px; padding: 8px 16px; font-size: .9375rem; }
.lang { display: flex; align-items: center; gap: 6px; font: 500 .8125rem/1 var(--f-mono); letter-spacing: .06em; }
.lang a, .lang-cur { padding: 6px 4px; color: var(--band-muted); text-decoration: none; }
.lang a:hover { color: var(--band-ink); text-decoration: underline; }
.lang-cur { color: var(--band-ink); border-bottom: 2px solid var(--accent); }
.lang-sep { color: var(--band-line); }
.nav-toggle { display: none; margin-left: auto; align-items: center; gap: 10px; background: none; border: 1px solid var(--band-line); color: var(--band-ink); border-radius: var(--radius); padding: 8px 12px; font: 500 .9375rem var(--f-body); cursor: pointer; min-height: 44px; }
.burger, .burger::before, .burger::after { display: block; width: 18px; height: 2px; background: currentColor; position: relative; transition: transform .2s; }
.burger::before, .burger::after { content: ""; position: absolute; left: 0; }
.burger::before { top: -6px; } .burger::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .burger { background: transparent; }
.nav-toggle[aria-expanded="true"] .burger::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .burger::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1240px) {
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--band); border-bottom: 1px solid var(--band-line);
    flex-direction: column; align-items: stretch; gap: 20px;
    padding: 12px max(24px, env(safe-area-inset-right, 0px)) 24px max(24px, env(safe-area-inset-left, 0px));
    max-height: calc(100dvh - 72px - env(safe-area-inset-top, 0px)); overflow-y: auto; }
  .site-nav.open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav nav a { padding: 14px 0; border-bottom: 1px solid var(--band-line); font-size: 1.0625rem; }
  .site-nav nav a[aria-current="page"] { border-bottom-color: var(--band-line); color: #fff; box-shadow: inset 3px 0 0 var(--accent); padding-left: 12px; }
  .nav-extra { flex-direction: column; align-items: stretch; gap: 16px; }
  .lang { font-size: .9375rem; }
  .lang a, .lang-cur { padding: 10px 8px; }
}

/* ---------- hero */
.hero { background: var(--surface); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; padding-block: clamp(48px, 6vw, 88px); }
.hero-text > * { min-width: 0; }
.hero h1 { max-width: 15ch; }
.hero .lead { margin-top: 20px; }
.hero-points { list-style: none; padding: 0; margin: 32px 0 0; display: flex; flex-wrap: wrap; gap: 10px 24px; font-size: .9375rem; color: var(--muted); }
.hero-points li { display: flex; align-items: center; gap: 8px; }
.hero-points li::before { content: ""; width: 8px; height: 8px; background: var(--accent); flex: none; }
.hero-fig { margin: 0; min-width: 0; }
.report { border: 1px solid var(--line); background: #120e1d; border-radius: var(--radius); overflow: hidden; }
.thermo { display: block; width: 100%; height: auto; }
.t-lbl { font: 500 11px var(--f-mono); letter-spacing: .1em; fill: #E9E3F5; }
.t-dim { fill: #9C90B8; } .t-sm { font-size: 9px; }
.t-key { font: 600 13px var(--f-mono); fill: #14171A; }
.hero-fig figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; margin-top: 10px; font: 400 .75rem/1.4 var(--f-mono); color: var(--muted); }

/* ---------- sections */
.sec { padding-block: var(--sec); }
.sec-alt { background: var(--surface); border-block: 1px solid var(--line); }
.sec + .sec-alt, .sec-alt + .sec { border-top: none; }
.sec-head { margin-bottom: 40px; max-width: 760px; }
.sec-head .lead { margin-top: 14px; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: clamp(28px, 5vw, 80px); align-items: end; }
.split > * { min-width: 0; }
.split-top { align-items: start; }
.split h2 + p, .split h2 + .lead { margin-top: 16px; }
.split-media { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: center; }
.split-form { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); }
.contact-split { grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); }
.sec-intro .lead { color: var(--ink); }
.more { margin-top: 28px; font-weight: 600; }
.aside-line { margin-top: 28px; color: var(--muted); max-width: 72ch; }

/* cards */
.cards { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 16px; }
.card { position: relative; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 24px 22px; display: flex; flex-direction: column; gap: 10px; transition: border-color .15s; }
.sec:not(.sec-alt) .card { background: var(--surface); }
.card-title { font-size: 1.375rem; }
.card-title a { color: var(--ink); text-decoration: none; }
.card-title a::after { content: ""; position: absolute; inset: 0; }
.card p { color: var(--muted); font-size: 1rem; }
.card-more { margin-top: auto; padding-top: 8px; font-weight: 600; font-size: .9375rem; color: var(--accent-ink); }
.card:hover { border-color: var(--ink); }
.card:focus-within { outline: 3px solid var(--focus); outline-offset: 2px; }
.card-title a:focus-visible { outline: none; }
.card-static:hover { border-color: var(--line); }
.card-topic { font: 500 .75rem/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--accent-ink) !important; }

/* checklist */
.checklist { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.checklist li { position: relative; padding-left: 26px; }
.checklist li::before { content: ""; position: absolute; left: 2px; top: .62em; width: 10px; height: 10px; border: 2px solid var(--accent); }

/* band (dark section) */
.band { background: var(--band); color: var(--band-ink); }
.band .lead { color: var(--band-muted); }
.band .eyebrow { color: var(--accent); }
.band .checklist li::before { border-color: var(--accent); }
.note { background: var(--note); padding: 24px; border-radius: var(--radius); margin-top: 40px; max-width: 820px; }
.note h3 { margin: 6px 0 8px; font-size: 1.25rem; }
.note-label { font: 500 .75rem/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .14em; color: var(--accent-ink); }
.note-band { background: var(--band-2); border: 1px solid var(--band-line); margin-top: 0; }
.note-band .note-label { color: var(--accent); }
.note-band p:last-child { margin-top: 10px; color: var(--band-ink); }

/* sectors */
.sector-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.sector-grid li { padding: 28px 28px 28px 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; }
.sector-grid li:not(:nth-child(3n+1)) { padding-left: 28px; border-left: 1px solid var(--line); }
.sector-grid p { color: var(--muted); font-size: 1rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto !important; padding-top: 6px; }
.chips a { font-size: .875rem; padding: 5px 10px; border: 1px solid var(--line); border-radius: 99px; text-decoration: none; color: var(--ink); background: var(--surface); }
.chips a:hover { border-color: var(--ink); }
.sector-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.sector-row { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr) minmax(0, 1fr); gap: 16px 40px; padding-block: 32px; border-bottom: 1px solid var(--line); align-items: start; }
.sector-row h2 { font-size: 1.6rem; }
.sector-row p { color: var(--muted); }
.sector-row .chips { margin-top: 0 !important; padding-top: 0; }

/* steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; counter-reset: s; }
.step { border-top: 2px solid var(--ink); padding: 20px 20px 0 0; display: flex; flex-direction: column; gap: 8px; }
.step-n { font: 700 2.5rem/1 var(--f-display); color: var(--accent-ink); font-variant-numeric: tabular-nums; }
.step h3 { font-size: 1.2rem; }
.step p { color: var(--muted); font-size: .975rem; }
.steps-v { grid-template-columns: 1fr; max-width: 820px; }
.steps-v .step { display: grid; grid-template-columns: 72px minmax(0, 1fr); grid-template-rows: auto auto; column-gap: 20px; padding: 24px 0; border-top: 1px solid var(--line); }
.steps-v .step:first-child { border-top: 2px solid var(--ink); }
.steps-v .step-n { grid-row: 1 / 3; }
.steps-v .step h3 { font-size: 1.45rem; }

/* tech */
.media { margin: 0; }
.media img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--radius); }
.media figcaption { margin-top: 10px; font: 400 .75rem/1.4 var(--f-mono); color: var(--muted); }
.tags { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font: 500 .8125rem/1 var(--f-mono); padding: 9px 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }

/* mini grid (safety / pillars) */
.mini-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px 28px; }
.mini-grid li { border-top: 1px solid var(--line); padding-top: 16px; }
.mini-grid h3 { font-size: 1.15rem; margin-bottom: 6px; }
.mini-grid p { color: var(--muted); font-size: .975rem; }
.mini-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 48px; }

/* faq */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 18px 40px 18px 0; position: relative; font-weight: 600; font-size: 1.0625rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 12px; height: 12px; margin-top: -8px; border-right: 2px solid var(--accent-ink); border-bottom: 2px solid var(--accent-ink); transform: rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details p { padding: 0 0 20px; color: var(--muted); max-width: 70ch; }
.sec > .wrap > h2 + .faq { margin-top: 32px; }

/* page hero (inner pages) */
.page-hero { background: var(--surface); border-bottom: 1px solid var(--line); }
.page-hero .wrap { padding-block: clamp(36px, 5vw, 72px); }
.ph-split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.ph-text { min-width: 0; }
.page-hero h1 { max-width: 20ch; }
.page-hero .lead { margin-top: 18px; }
.crumbs ol { list-style: none; margin: 0 0 28px; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; font-size: .875rem; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 6px; color: var(--line); }
.crumbs a { color: var(--muted); }

/* placeholder image */
.ph-img { margin: 0; max-width: 100%; border: 1.5px dashed var(--todo-line); border-radius: var(--radius); display: grid; place-items: center; text-align: center; padding: 24px;
  background: repeating-linear-gradient(135deg, var(--bg) 0 12px, var(--surface) 12px 24px); }
.ph-img div { display: grid; gap: 8px; max-width: 32ch; }
.ph-tag { justify-self: center; font: 500 .75rem/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .12em; background: var(--todo-bg); color: var(--todo-ink); padding: 6px 10px; }
.ph-desc { font-size: .9375rem; color: var(--muted); }

/* service blocks */
.blocks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px 64px; }
.block { min-width: 0; }
.block h2 { font-size: 1.75rem; }
.block > p { margin-top: 12px; color: var(--muted); }

/* factors */
.factors { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.factors li { padding: 14px 16px 14px 0; border-bottom: 1px solid var(--line); font-weight: 500; }
.factors li:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--line); }

/* cta band */
.cta-band { background: var(--band); color: var(--band-ink); }
.cta-inner { padding-block: clamp(40px, 5vw, 64px); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.cta-inner > div { min-width: 0; max-width: 680px; }
.cta-inner p { margin-top: 10px; color: var(--band-muted); }

/* pending markers */
.todo { background: var(--todo-bg); color: var(--todo-ink); padding: 1px 6px; border-radius: 2px; font: 500 .8125rem/1.5 var(--f-mono); box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.site-footer .todo { font-size: .75rem; }
.pending-line { margin-bottom: 28px; }
.pending-block { border: 1.5px dashed var(--todo-line); border-radius: var(--radius); padding: 24px; }
.pending-block h2 { margin-top: 12px; }
.pending-block > p { margin-top: 10px; color: var(--muted); }

/* contact */
.contact-list { margin: 28px 0 0; display: grid; gap: 18px; }
.contact-list div { display: grid; gap: 2px; }
.contact-list dt { font: 500 .75rem/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.contact-list dd { margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; }
.contact-val { font: 600 1.125rem/1.3 var(--f-body); color: var(--ink); user-select: all; overflow-wrap: anywhere; }
.copy { font: 500 .75rem var(--f-mono); letter-spacing: .06em; text-transform: uppercase; padding: 5px 9px; border: 1px solid var(--line); background: transparent; color: var(--muted); border-radius: var(--radius); cursor: pointer; }
.copy:hover { color: var(--ink); border-color: var(--ink); }
.contact-aside { display: grid; gap: 4px; align-content: start; }
.contact-aside .contact-list { margin-top: 0; margin-bottom: 36px; }
.contact-aside .checklist { margin-top: 14px; }

/* form */
.form-card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 3vw, 36px); min-width: 0; }
.form-title { font-size: 1.5rem; }
.form-title + .hint { margin-top: 6px; }
.fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 24px; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field-wide, .field:has(select), .field:has(#location) { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: .9375rem; }
.req { color: var(--accent-ink); }
.opt { font-weight: 400; color: var(--muted); }
.hint { font-size: .875rem; color: var(--muted); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%; min-height: 48px; padding: 11px 12px; font: 400 1rem/1.4 var(--f-body); color: var(--ink);
  background: var(--surface); border: 1.5px solid var(--line); border-radius: var(--radius); }
textarea { resize: vertical; min-height: 128px; }
input:hover, select:hover, textarea:hover { border-color: var(--muted); }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 0; border-color: var(--focus); }
[aria-invalid="true"] { border-color: var(--err) !important; }
.err { color: var(--err); font-size: .875rem; font-weight: 500; }
.err::before { content: "! "; font-weight: 700; }
.checks { display: grid; gap: 12px; margin-top: 24px; }
.check { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; align-items: start; font-size: .9375rem; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); }
.privacy-info { margin: 16px 0 24px; font-size: .8125rem; color: var(--muted); max-width: 70ch; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.err-summary { margin-top: 20px; padding: 14px 16px; border: 1.5px solid var(--err); border-radius: var(--radius); background: var(--surface); }
.err-summary p { font-weight: 600; color: var(--err); }
.err-summary ul { margin: 8px 0 0; padding-left: 20px; }
.form-result { margin-top: 24px; padding: 18px; border-radius: var(--radius); border: 1.5px solid var(--line); background: var(--surface); }
.form-result h4 { margin: 0 0 6px; font: 600 1.15rem var(--f-display); }
.form-result.is-ok { border-color: var(--ok); }
.form-result.is-fail, .form-result.is-pending { border-color: var(--accent); }
.form-result pre { margin: 12px 0 0; padding: 12px; white-space: pre-wrap; overflow-wrap: anywhere; font: 400 .8125rem/1.5 var(--f-mono); background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); max-height: 260px; overflow: auto; }
.form-result .actions { margin-top: 14px; }

/* prose / legal */
.prose { max-width: 760px; display: grid; gap: 36px; }
.legal-sec h2 { font-size: 1.5rem; margin-bottom: 12px; }
.legal-sec p { color: var(--muted); }
.rows { margin: 0; border-top: 1px solid var(--line); }
.rows div { display: grid; grid-template-columns: minmax(0, 200px) minmax(0, 1fr); gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.rows dt { font-weight: 600; }
.rows dd { margin: 0; overflow-wrap: anywhere; }

/* footer */
.site-footer { background: var(--band); color: var(--band-muted); font-size: .9375rem; padding-bottom: env(safe-area-inset-bottom, 0px); }
.site-footer .wrap { padding-block: 64px 28px; }
.ft-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, .8fr); gap: 40px; }
.ft-grid > * { min-width: 0; }
.ft-brand img { width: 176px; }
.ft-brand p { margin-top: 18px; max-width: 34ch; }
.ft-h { font: 500 .75rem/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .14em; color: var(--band-ink); margin-bottom: 16px; }
.ft-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { color: var(--band-muted); text-decoration: none; }
.site-footer a:hover { color: var(--band-ink); text-decoration: underline; }
.site-footer .contact-list { margin: 0; }
.site-footer .contact-list dt { color: var(--band-muted); }
.site-footer .contact-val { color: var(--band-ink); font-size: 1rem; }
.site-footer .copy { border-color: var(--band-line); color: var(--band-muted); }
.ft-bottom { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--band-line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; font-size: .875rem; }
.ft-legal { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* ---------- responsive */
@media (max-width: 1000px) {
  .hero-grid, .split, .split-media, .split-form, .contact-split, .ph-split { grid-template-columns: minmax(0, 1fr); }
  .split { align-items: start; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 28px; }
  .mini-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sector-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sector-grid li:not(:nth-child(3n+1)) { padding-left: 0; border-left: none; }
  .sector-grid li:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--line); }
  .sector-grid li { padding-right: 24px; }
  .sector-row { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .ft-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .media { max-width: 480px; }
  .ph-split .ph-img { max-height: 340px; aspect-ratio: 16 / 9 !important; }
}
@media (max-width: 640px) {
  body { font-size: 1rem; }
  .blocks, .fields, .factors, .mini-grid, .mini-3, .sector-grid, .ft-grid { grid-template-columns: minmax(0, 1fr); }
  .factors li:nth-child(even) { padding-left: 0; border-left: none; }
  .sector-grid li, .sector-grid li:nth-child(even) { padding: 22px 0; border-left: none; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .steps:not(.steps-v) .step { display: grid; grid-template-columns: 52px minmax(0, 1fr); column-gap: 12px; padding-top: 16px; }
  .steps:not(.steps-v) .step .step-n { grid-row: 1 / 3; font-size: 2rem; }
  .steps-v .step { grid-template-columns: 52px minmax(0, 1fr); }
  .actions .btn { flex: 1 1 100%; }
  .rows div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .hero-fig figcaption { flex-direction: column; }
  .brand img { width: 150px; }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-text, .hero-fig { animation: rise .5s ease-out both; }
  .hero-fig { animation-delay: .08s; }
  @keyframes rise { from { transform: translateY(8px); } to { transform: none; } }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* illustrative images (generated or stock: always labelled) */
.ill { position: relative; margin: 0; max-width: 100%; min-width: 0; }
.ill img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius); background: var(--line); }
.ill-tag { position: absolute; left: 10px; bottom: 10px; font: 500 .6875rem/1.2 var(--f-mono); letter-spacing: .08em; text-transform: uppercase;
  background: rgba(14,16,18,.78); color: #F1F3F5; padding: 5px 8px; border-radius: 2px; pointer-events: none; }
.ill-wide { margin-top: clamp(32px, 4vw, 56px); }
.ill-wide img { aspect-ratio: 21 / 9; }
.ill-hero img { aspect-ratio: 4 / 3; }
.band-side { display: grid; gap: 16px; min-width: 0; }
.band-side .ill img { aspect-ratio: 16 / 9; }
.block-img .ill { margin-top: 20px; }
.block-img .ill img { aspect-ratio: 2 / 1; }
.sector-row { grid-template-columns: minmax(0, 220px) minmax(0, .8fr) minmax(0, 1.2fr) minmax(0, 1fr); }
.ill-thumb img { aspect-ratio: 3 / 2; }
.ft-note { margin-top: 40px; font-size: .8125rem; color: var(--band-muted); }
.ft-note + .ft-bottom { margin-top: 16px; }
@media (max-width: 1000px) {
  .sector-row { grid-template-columns: minmax(0, 1fr); }
  .ill-thumb { max-width: 420px; }
  .ill-wide img { aspect-ratio: 16 / 9; }
}
.ill-thumb .ill-tag { left: 6px; bottom: 6px; font-size: .5625rem; padding: 3px 5px; letter-spacing: .04em; }
.ill-hero img[src*="wind-drone"] { aspect-ratio: 4 / 5; max-height: 520px; object-position: center 30%; }
@media (max-width: 1000px) { .ill-hero img[src*="wind-drone"] { aspect-ratio: 4 / 3; max-height: none; } }
.ill img[src*="power-tower"] { object-position: center 18%; }
.ill-hero img[src*="fv-thermal"] { aspect-ratio: 16 / 10; object-position: 65% center; }
.block-img .ill img[src*="facade-zone"], .block-img .ill img[src*="fv-roof-dirty"] { aspect-ratio: 4 / 3; }
.ill-hero img[src*="facade-hero"] { object-position: center 35%; }

/* statement band (campaign headline) */
.statement { background: var(--band); color: var(--band-ink); }
.statement-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 72px); align-items: center; padding-block: clamp(56px, 7vw, 104px); }
.statement-text { min-width: 0; }
.statement h2 { font-size: clamp(2.1rem, 1.3rem + 3vw, 3.6rem); font-weight: 700; line-height: 1.02; max-width: 14ch; }
.statement .eyebrow { color: var(--accent); }
.statement p { margin-top: 20px; color: var(--band-muted); max-width: 46ch; font-size: 1.125rem; }
.statement-img img { aspect-ratio: 16 / 10; }
.statement-ev .wrap { padding-block: clamp(56px, 7vw, 104px); }
.statement-ev .sec-head h2 { max-width: 20ch; }
.statement-ev .lead { color: var(--band-muted); }
.ev-list { list-style: none; margin: 8px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--band-line); }
.ev-list li { padding: 24px 20px 0 0; display: grid; gap: 12px; align-content: start; }
.ev-list li + li { padding-left: 20px; border-left: 1px solid var(--band-line); }
.ev-n { font: 500 .8125rem/1 var(--f-mono); color: var(--accent); letter-spacing: .08em; }
.ev-list h3 { font-size: 1.25rem; color: var(--band-ink); }
.ev-list p { margin-top: 6px; color: var(--band-muted); font-size: .975rem; }
.ev-note { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--band-line); color: var(--band-ink); font-weight: 500; }
@media (max-width: 1000px) {
  .statement-grid { grid-template-columns: minmax(0, 1fr); }
  .ev-list { grid-template-columns: minmax(0, 1fr); }
  .ev-list li, .ev-list li + li { padding: 20px 0; border-left: none; border-bottom: 1px solid var(--band-line); grid-template-columns: 40px minmax(0, 1fr); }
}

/* 404 */
.nf-wrap { padding-block: 72px; display: grid; gap: 56px; max-width: 760px; }
.nf h1 { font-size: clamp(1.8rem, 1.3rem + 2vw, 2.6rem); }
.nf p { margin-top: 12px; color: var(--muted); }
.nf-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px !important; }
.nf + .nf { border-top: 1px solid var(--line); padding-top: 40px; }
.ill-hero img[src*="home-barcelona"] { object-position: 60% center; }

/* Etiqueta «Próximamente» en Actualidad */
.soon { font: 500 .75rem/1.5 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent-ink); }

/* WhatsApp */
.wa-float { position: fixed; right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); z-index: 60; display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px 12px 14px; border-radius: 999px; background: #25D366; color: #08321a; font: 600 .9375rem/1 var(--f-body); text-decoration: none; box-shadow: 0 6px 18px rgba(0,0,0,.22); transition: transform .15s ease, box-shadow .15s ease; }
.wa-float:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.26); }
.wa-float:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.wa-ico { flex: none; }
@media (max-width: 640px) { .wa-float { padding: 14px; } .wa-txt { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } .site-footer { padding-bottom: 88px; } }
@media print { .wa-float { display: none; } }

/* Topografía con drones: etiqueta «Nuevo», aviso en portada, gráfico y pasos */
.badge-new { display: inline-block; vertical-align: middle; margin-left: 6px; padding: 3px 8px; border-radius: 999px; background: var(--accent); color: var(--on-accent); font: 600 .6875rem/1.2 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; }
.card-new { border-color: var(--accent); box-shadow: inset 0 3px 0 var(--accent); }
.hero-news { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 20px; padding: 6px 14px 6px 6px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg); color: var(--ink); font-weight: 500; font-size: .9375rem; text-decoration: none; }
.hero-news .badge-new { margin-left: 0; }
.hero-news:hover { border-color: var(--accent); }
.topo { display: block; width: 100%; height: auto; }
.topo-fig { margin: 0; min-width: 0; }
.topo-fig .report { background: #121417; }
.topo-steps { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 0; }
.topo-steps li { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 8px; padding: 12px 0; border-top: 1px solid var(--line); }
.topo-steps p { margin: 0; }
.topo-n { font: 500 .8125rem/1.6 var(--f-mono); color: var(--accent-ink); letter-spacing: .08em; }
.fmt { margin-top: 16px; font-size: .9375rem; color: var(--muted); }
.fmt strong { color: var(--ink); }
.note-link { margin-top: 12px; }
.band-topo { border-bottom: 1px solid var(--band-line); }