/* ==========================================================================
   DISFRICAL — Base: reset, tipografía, utilidades, botones, reveal
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color 0.5s var(--ease-out), color 0.5s var(--ease-out);
}
img, svg, video, iframe { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.08; letter-spacing: -0.025em; font-weight: 700; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
ul { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--frost-500); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 200;
  padding: 10px 16px; border-radius: var(--radius-sm);
  background: var(--ink); color: var(--bg); font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

/* ---- Layout ---- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(48px, 7vw, 96px); }
.section--alt { background: var(--bg-2); }

.section-head { display: grid; gap: 18px; margin-bottom: clamp(36px, 5vw, 64px); max-width: 760px; }
.section-head--split { max-width: none; grid-template-columns: 1fr; align-items: end; }
@media (min-width: 900px) { .section-head--split { grid-template-columns: 1.2fr 1fr; gap: 48px; } }
.section-head h2 { font-size: var(--fs-3xl); }
.section-head p { color: var(--ink-2); font-size: var(--fs-lg); max-width: 56ch; }

/* ---- Tipografía utilitaria ---- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: var(--fs-xs); font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px;
  background: var(--grad-thermal);
}
.eyebrow--light { color: var(--frost-300); }
.t-thermal {
  background: var(--grad-thermal);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.t-frost { color: var(--accent); }
.t-heat { color: var(--heat); }
.t-muted { color: var(--ink-2); }
.mono { font-family: var(--font-mono); }

/* ---- Botones ---- */
.btn {
  --btn-bg: var(--surface); --btn-ink: var(--ink); --btn-line: var(--line-2);
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 50px; padding: 0 24px; border-radius: var(--radius-pill);
  font-weight: 600; font-size: 0.95rem; letter-spacing: -0.005em;
  background: var(--btn-bg); color: var(--btn-ink);
  border: 1px solid var(--btn-line);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), background-color 0.3s, border-color 0.3s;
  isolation: isolate; overflow: hidden; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.35s var(--ease-out); }
.btn:hover svg { transform: translateX(3px); }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-1); }
.btn:active { transform: translateY(0); }

.btn--primary { --btn-bg: var(--frost-500); --btn-ink: #fff; --btn-line: transparent; box-shadow: 0 10px 30px -10px rgba(29, 116, 216, 0.7); }
.btn--primary::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--grad-thermal); opacity: 0; transition: opacity 0.45s var(--ease-out);
}
.btn--primary:hover::before { opacity: 1; }
.btn--primary:hover { box-shadow: 0 16px 40px -12px rgba(242, 98, 42, 0.55); }

.btn--heat { --btn-bg: var(--heat-500); --btn-ink: #fff; --btn-line: transparent; }
.btn--ghost { --btn-bg: transparent; }
.btn--glass {
  --btn-bg: rgba(255, 255, 255, 0.12); --btn-ink: #fff; --btn-line: rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.btn--glass:hover { --btn-bg: rgba(255, 255, 255, 0.2); }
.btn--sm { min-height: 40px; padding: 0 18px; font-size: 0.875rem; }
.btn--block { width: 100%; }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--accent); }
.link-arrow svg { width: 16px; height: 16px; transition: transform 0.3s var(--ease-out); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---- Glass (con fallback sólido) ---- */
.glass {
  background: var(--glass-solid);
  border: 1px solid var(--glass-line);
}
@supports ((backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px))) {
  .glass {
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(170%);
    -webkit-backdrop-filter: blur(20px) saturate(170%);
  }
}

/* ---- Chips ---- */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px; border-radius: var(--radius-pill);
  font-size: var(--fs-xs); font-weight: 600;
  background: var(--surface-2); border: 1px solid var(--line); color: var(--ink-2);
}
.chip--frost { background: color-mix(in srgb, var(--frost-500) 10%, transparent); color: var(--accent); border-color: transparent; }
.chip--heat { background: color-mix(in srgb, var(--heat-500) 12%, transparent); color: var(--heat); border-color: transparent; }

/* ---- Reveal on scroll ----
   Solo se oculta si JS está activo (clase .js en <html>), y hay red de seguridad
   de 6 s en main.js que revela cualquier cosa que siga oculta. */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out); transition-delay: var(--d, 0s); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-split] { opacity: 1; transform: none; }

/* ---- Page banner (cabecera de páginas interiores) ---- */
.page-banner {
  position: relative; min-height: clamp(420px, 62vh, 620px);
  display: flex; align-items: flex-end;
  color: #fff; overflow: hidden; isolation: isolate;
  padding: calc(var(--nav-h) + 60px) 0 clamp(48px, 7vw, 88px);
  background: var(--frost-900);
}
.page-banner__media { position: absolute; inset: 0; z-index: -2; }
.page-banner__media img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.08); animation: bannerZoom 2.2s var(--ease-out) forwards;
}
.page-banner::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(3, 12, 24, 0.55) 0%, rgba(3, 12, 24, 0.25) 40%, rgba(3, 12, 24, 0.92) 100%),
    linear-gradient(90deg, rgba(6, 24, 45, 0.75) 0%, transparent 70%);
}
.page-banner h1 { font-size: clamp(2.4rem, 1.4rem + 4.4vw, 5rem); max-width: 16ch; margin-top: 18px; }
.page-banner p { margin-top: 20px; max-width: 54ch; font-size: var(--fs-lg); color: rgba(233, 241, 251, 0.82); }
.page-banner .crumbs { font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: 0.1em; text-transform: uppercase; color: rgba(233, 241, 251, 0.6); }
.page-banner .crumbs a:hover { color: #fff; }
.page-banner__in > * { animation: riseIn 1s var(--ease-out) both; }
.page-banner__in > *:nth-child(2) { animation-delay: 0.1s; }
.page-banner__in > *:nth-child(3) { animation-delay: 0.2s; }
.page-banner__in > *:nth-child(4) { animation-delay: 0.3s; }

@keyframes bannerZoom { to { transform: scale(1); } }
@keyframes riseIn { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: none; } }

/* ---- Marquee ---- */
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee__track { display: flex; gap: 14px; width: max-content; animation: marquee 48s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Solo efectos intrusivos se desactivan con reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation-duration: 120s; }
}

[data-icon] { display: inline-flex; flex: none; }
[data-icon] svg { width: 100%; height: 100%; }
.btn [data-icon], .link-arrow [data-icon] { width: 18px; height: 18px; transition: transform 0.35s var(--ease-out); }
.btn:hover [data-icon], .link-arrow:hover [data-icon], .svc-card:hover .link-arrow [data-icon] { transform: translateX(4px); }
.sector [data-icon] { width: 22px; height: 22px; color: var(--accent); }
.cert [data-icon] { width: 30px; height: 30px; color: var(--accent); }
.svc-card__icon[data-icon] { display: grid; }
.svc-card__icon svg { width: 24px; height: 24px; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }