/* =====================================================================
   ARAUZA INDUSTRIAL — CSS de marca (sobre family-kit.css de la familia HENET)
   v1.0 · 2026-06-29 · ver comando/marca/identidad-corporativa-arauza.md

   Acento de familia Arauza = COBRE (conductor, base material, energía).
   Lo único propio de la marca es el contrato --brand-*; los neutros /
   tipografía / escala / componentes vienen de family-kit.css y NO se tocan.
   El frente solar (arauzaindustrial.com) usa este mismo archivo con un
   bloque .theme-solar que reasigna el acento a sol-oro/verde (ver final).
   ===================================================================== */

:root {
  /* ---- Contrato de marca Arauza (cobre/bronce, PLAN-MARCA-001 §2) ---- */
  --brand: #8a4f2c;            /* cobre profundo — apto como texto: títulos, primario */
  --brand-deep: #6f3f23;       /* bronce — hover del primario */
  --brand-accent: #d38a55;     /* cobre vivo — puntos, realces, mono en oscuro */
  --brand-accent-ink: #a55c30; /* cobre legible como texto pequeño sobre claro */
  --brand-gradient: linear-gradient(100deg, #6f3f23 0%, #b26a3c 55%, #d38a55 100%);
  --machine: #1b1713;          /* banda oscura: grafito cálido */
  --machine-2: #241d17;
  --machine-3: #3a2c20;
  --heading: var(--brand);

  /* tokens propios */
  --copper: #b26a3c;           /* cobre de marca (señalética, no texto pequeño) */
  --hairline: rgba(178,106,60,.12);
  --glass: rgba(255,255,255,.06);
}

/* ===================== NAV ===================== */
.nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; gap: var(--s5); height: 68px; }
.brand-lockup { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 700; color: var(--brand); letter-spacing: -.01em; }
.brand-lockup img { width: 34px; height: auto; }
.brand-lockup .name { font-size: 1.12rem; line-height: 1; }
.brand-lockup .name small { display: block; font-family: var(--font-mono); font-size: .62rem; font-weight: 400; letter-spacing: .14em; color: var(--muted); text-transform: uppercase; margin-top: 3px; }
.nav__links { margin-left: auto; display: flex; align-items: center; gap: var(--s5); }
.nav__links a { color: var(--ink); font-weight: 600; font-size: .98rem; }
.nav__links a:hover { color: var(--brand); }
.nav__links .btn { color: #fff; }
.nav__toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 10px; width: 44px; height: 44px; align-items: center; justify-content: center; cursor: pointer; }
.nav__toggle svg { width: 22px; height: 22px; stroke: var(--ink); }
@media (max-width: 920px) {
  .nav__links { position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; background: #fff; border-bottom: 1px solid var(--line); padding: var(--s3) var(--pad) var(--s5); transform: translateY(-130%); transition: transform .3s var(--ease-out-quint); box-shadow: var(--shadow-md); }
  .nav__links.open { transform: translateY(0); }
  .nav__links a { padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .nav__links .btn { margin-top: var(--s3); justify-content: center; }
  .nav__toggle { display: inline-flex; }
}

/* ===================== HERO ===================== */
.hero { position: relative; background: var(--machine); color: var(--on-machine); overflow: hidden; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(211,138,85,.22), transparent 60%),
    radial-gradient(800px 420px at 8% 110%, rgba(178,106,60,.20), transparent 55%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}
.hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: var(--s8); align-items: center; padding-block: clamp(72px, 11vw, 132px); }
@media (max-width: 940px) { .hero__grid { grid-template-columns: 1fr; gap: var(--s6); } }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; color: var(--brand-accent); padding: 7px 14px; border: 1px solid rgba(211,138,85,.35); border-radius: 999px; background: rgba(211,138,85,.08); }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-accent); box-shadow: 0 0 0 4px rgba(211,138,85,.18); }
.hero h1 { color: #fff; margin-top: var(--s5); }
.hero h1 .accent { color: var(--brand-accent); }
.hero__lead { color: var(--on-machine-muted); margin-top: var(--s5); max-width: 54ch; font-size: clamp(1.08rem, 1rem + .5vw, 1.3rem); }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s3); margin-top: var(--s6); }
.hero__trust { display: flex; flex-wrap: wrap; gap: var(--s3) var(--s6); margin-top: var(--s7); padding-top: var(--s5); border-top: 1px solid rgba(255,255,255,.1); }
.hero__trust b { display: block; font-family: var(--font-display); font-size: 1.5rem; color: #fff; line-height: 1; }
.hero__trust span { font-size: .82rem; color: var(--on-machine-muted); }

/* panel del hero: "ficha técnica" */
.spec-card { background: linear-gradient(160deg, rgba(58,44,32,.55), rgba(27,23,19,.65)); border: 1px solid rgba(211,138,85,.22); border-radius: var(--radius-lg); padding: var(--s6); box-shadow: var(--shadow-lg); backdrop-filter: blur(6px); }
.spec-card h2 { font-size: 1.05rem; color: #fff; display: flex; align-items: center; gap: 10px; }
.spec-card h2::before { content: ""; width: 9px; height: 9px; border-radius: 2px; background: var(--brand-accent); box-shadow: 0 0 12px var(--brand-accent); }
.spec-list { list-style: none; padding: 0; margin: var(--s4) 0 0; display: grid; gap: 1px; background: rgba(255,255,255,.08); border-radius: 10px; overflow: hidden; }
.spec-list li { display: flex; justify-content: space-between; gap: var(--s4); padding: 13px 16px; background: rgba(27,23,19,.6); font-size: .92rem; }
.spec-list li span { color: var(--on-machine-muted); }
.spec-list li b { color: #fff; font-weight: 600; font-family: var(--font-mono); font-size: .86rem; }

/* ===================== CAPACIDADES (band) ===================== */
.marquee-band { background: var(--surface); border-block: 1px solid var(--line); }
.norm-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--s4) var(--s7); padding-block: var(--s5); }
.norm-row .lbl { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.norm-row .chip { font-family: var(--font-mono); font-weight: 600; font-size: .92rem; color: var(--brand); letter-spacing: .02em; }

/* ===================== SERVICIOS (grid) ===================== */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s4); }
@media (max-width: 1080px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .svc-grid { grid-template-columns: 1fr; } }
.svc-card { position: relative; display: flex; flex-direction: column; gap: var(--s3); background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s5); transition: transform .25s var(--ease-out-quint), box-shadow .25s, border-color .25s; overflow: hidden; }
.svc-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--brand-gradient); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out-expo); }
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(178,106,60,.28); }
.svc-card:hover::before { transform: scaleX(1); }
.svc-card .ico { width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center; border-radius: 11px; background: rgba(178,106,60,.08); color: var(--brand); border: 1px solid var(--hairline); }
.svc-card .ico svg { width: 24px; height: 24px; }
.svc-card h3 { font-size: 1.1rem; color: var(--brand); letter-spacing: -.01em; }
.svc-card p { color: var(--muted); font-size: .95rem; line-height: 1.55; }
.svc-card .tags { margin-top: auto; display: flex; flex-wrap: wrap; gap: 6px; }
.svc-card .tags span { font-family: var(--font-mono); font-size: .7rem; color: var(--brand-accent-ink); background: rgba(211,138,85,.12); border-radius: 6px; padding: 3px 8px; }

.band--machine .svc-card { background: rgba(255,255,255,.03); border-color: rgba(255,255,255,.1); }
.band--machine .svc-card h3 { color: #fff; }
.band--machine .svc-card p { color: var(--on-machine-muted); }
.band--machine .svc-card .ico { background: rgba(211,138,85,.14); color: var(--brand-accent); border-color: rgba(211,138,85,.28); }

/* ===================== PROCESO (pasos) ===================== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s4); counter-reset: step; }
@media (max-width: 880px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding: var(--s5) 0 0; border-top: 2px solid var(--line); }
.step::before { counter-increment: step; content: "0" counter(step); position: absolute; top: -2px; left: 0; padding-top: var(--s2); font-family: var(--font-mono); font-size: .8rem; color: var(--brand-accent-ink); }
.step.is-active { border-top-color: var(--brand); }
.step h3 { font-size: 1.05rem; margin-top: var(--s4); }
.step p { color: var(--muted); font-size: .93rem; margin-top: var(--s2); }

/* ===================== FEATURE split ===================== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s8); align-items: center; }
@media (max-width: 880px) { .split { grid-template-columns: 1fr; gap: var(--s6); } }
.media-frame { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-md); background: var(--surface); aspect-ratio: 4 / 3; }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.media-frame .badge { position: absolute; left: 14px; bottom: 14px; display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: .74rem; color: #fff; background: rgba(27,23,19,.7); border: 1px solid rgba(211,138,85,.3); border-radius: 999px; padding: 6px 12px; backdrop-filter: blur(4px); }
.feature-list { list-style: none; padding: 0; margin: var(--s5) 0 0; display: grid; gap: var(--s4); }
.feature-list li { display: grid; grid-template-columns: 26px 1fr; gap: var(--s3); align-items: start; }
.feature-list li svg { width: 22px; height: 22px; color: var(--brand-accent-ink); margin-top: 2px; }
.feature-list li b { color: var(--ink); }
.feature-list li p { color: var(--muted); font-size: .94rem; margin-top: 2px; }

/* ===================== STATS ===================== */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s4); }
@media (max-width: 760px) { .stat-grid { grid-template-columns: 1fr 1fr; } }
.stat { padding: var(--s5); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); background: rgba(255,255,255,.03); }
.stat b { display: block; font-family: var(--font-display); font-size: clamp(2rem, 1.4rem + 2vw, 2.8rem); color: #fff; line-height: 1; }
.stat b .u { color: var(--brand-accent); }
.stat span { color: var(--on-machine-muted); font-size: .9rem; display: block; margin-top: var(--s2); }

/* ===================== CTA final ===================== */
.cta-final { position: relative; background: var(--brand-gradient); color: #fff; border-radius: var(--radius-lg); padding: clamp(40px, 6vw, 72px); overflow: hidden; isolation: isolate; }
.cta-final::after { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5; background-image: radial-gradient(circle at 85% 20%, rgba(255,255,255,.25), transparent 40%); }
.cta-final h2 { color: #fff; max-width: 18ch; }
.cta-final p { color: rgba(255,255,255,.9); max-width: 52ch; margin-top: var(--s3); }
.cta-final .btn--invert { background: #fff; color: var(--brand); border-color: #fff; margin-top: var(--s5); }
.cta-final .btn--invert:hover { background: #fbeee3; color: var(--brand-deep); }

/* ===================== CONTACTO ===================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: var(--s8); align-items: start; }
@media (max-width: 920px) { .contact-grid { grid-template-columns: 1fr; gap: var(--s6); } }
.contact-card { display: grid; gap: var(--s4); }
.contact-item { display: grid; grid-template-columns: 44px 1fr; gap: var(--s3); align-items: center; }
.contact-item .ico { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 11px; background: rgba(178,106,60,.08); color: var(--brand); border: 1px solid var(--hairline); }
.contact-item .ico svg { width: 22px; height: 22px; }
.contact-item .k { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.contact-item .v { color: var(--ink); font-weight: 600; }
.contact-item .v a { color: var(--ink); }
.contact-item .v a:hover { color: var(--brand); }

/* formulario */
.form { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 32px); box-shadow: var(--shadow-sm); }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s4); }
@media (max-width: 560px) { .form .row { grid-template-columns: 1fr; } }
.field { display: grid; gap: 7px; margin-bottom: var(--s4); }
.field label { font-size: .86rem; font-weight: 600; color: var(--ink); }
.field label .req { color: var(--brand-accent-ink); }
.field input, .field select, .field textarea { font-family: var(--font-sans); font-size: 1rem; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; transition: border-color .2s, box-shadow .2s; width: 100%; }
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--brand-accent); box-shadow: 0 0 0 4px rgba(211,138,85,.18); }
.field--hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.consent { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; margin: var(--s4) 0; font-size: .9rem; color: var(--muted); }
.consent input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--brand); }
.consent a { color: var(--brand-accent-ink); font-weight: 600; }
.form__status { margin-top: var(--s4); font-size: .92rem; border-radius: 10px; padding: 12px 14px; display: none; }
.form__status.ok { display: block; background: rgba(46,158,107,.1); color: #1d7a52; border: 1px solid rgba(46,158,107,.3); }
.form__status.err { display: block; background: rgba(192,57,43,.08); color: #a3271c; border: 1px solid rgba(192,57,43,.25); }

/* ===================== WHATSAPP FAB ===================== */
.wa-fab { position: fixed; right: 20px; bottom: 20px; z-index: var(--z-overlay); display: inline-flex; align-items: center; gap: 10px; background: #25d366; color: #06351b; font-weight: 700; padding: 14px 18px; border-radius: 999px; box-shadow: 0 12px 30px rgba(37,211,102,.35); transition: transform .2s var(--ease-out-quart), box-shadow .2s; }
.wa-fab:hover { transform: translateY(-2px); color: #06351b; box-shadow: 0 16px 38px rgba(37,211,102,.45); }
.wa-fab svg { width: 24px; height: 24px; }
.wa-fab .lbl { font-size: .95rem; }
@media (max-width: 560px) { .wa-fab .lbl { display: none; } .wa-fab { padding: 14px; } }

/* ===================== FOOTER ===================== */
.footer { background: var(--machine); color: var(--on-machine); padding-block: var(--s8) var(--s6); }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--s6); }
@media (max-width: 880px) { .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s6); } }
@media (max-width: 520px) { .footer__grid { grid-template-columns: 1fr; } }
.footer__brand .brand-lockup { color: #fff; }
.footer__brand .brand-lockup .name { color: #fff; }
.footer p { color: var(--on-machine-muted); font-size: .92rem; margin-top: var(--s3); max-width: 34ch; }
.footer h4 { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--on-machine-muted); margin-bottom: var(--s3); }
.footer ul { list-style: none; padding: 0; display: grid; gap: 10px; }
.footer ul a { color: var(--on-machine); font-size: .94rem; }
.footer ul a:hover { color: #fff; }
.footer__bottom { margin-top: var(--s7); padding-top: var(--s5); border-top: 1px solid var(--machine-3); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s3); font-size: .84rem; color: var(--on-machine-muted); }
.footer__bottom .powered { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .02em; }
.footer__bottom .powered a { color: var(--on-machine); font-weight: 600; }
.footer__bottom .powered a:hover { color: #fff; }

/* ===================== LEGAL / prosa ===================== */
.prose { max-width: 76ch; }
.prose h2 { font-size: clamp(1.4rem, 1.1rem + 1.2vw, 1.9rem); margin-top: var(--s7); }
.prose h3 { margin-top: var(--s5); }
.prose p, .prose li { color: var(--ink); line-height: 1.7; }
.prose p, .prose ul, .prose ol, .prose table { margin-top: var(--s3); }
.prose ul, .prose ol { padding-left: 1.3em; display: grid; gap: 8px; }
.prose a { color: var(--brand-accent-ink); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.prose table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border: 1px solid var(--line); vertical-align: top; }
.prose th { background: var(--surface); font-family: var(--font-display); }
.legal-box { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: var(--s5); margin-top: var(--s4); font-family: var(--font-mono); font-size: .86rem; line-height: 1.7; white-space: pre-line; color: var(--ink); }
.todo { color: #a3271c; font-weight: 700; }
.page-head { background: var(--machine); color: var(--on-machine); padding-block: clamp(48px, 8vw, 92px) clamp(32px, 5vw, 56px); }
.page-head .eyebrow { margin-bottom: var(--s4); }
.page-head h1 { color: #fff; font-size: clamp(2rem, 1.4rem + 3vw, 3.4rem); }
.page-head p { color: var(--on-machine-muted); margin-top: var(--s3); max-width: 60ch; }
.breadcrumb { font-size: .82rem; color: var(--on-machine-muted); margin-bottom: var(--s4); }
.breadcrumb a { color: var(--brand-accent); }

/* utilidades */
.center { text-align: center; margin-inline: auto; }
.kicker { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; color: var(--brand-accent-ink); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s5); }
@media (max-width: 760px){ .grid-2 { grid-template-columns: 1fr; } }
.divider { height: 1px; background: var(--line); border: 0; margin-block: var(--s7); }

/* ===================== Tira de ecosistema Arauza (footer) ===================== */
.ecosystem__list .dot.dom { --c: #b26a3c; }   /* dominios */
.ecosystem__list .dot.ind { --c: #d38a55; }   /* industrial */
.ecosystem__list .dot.sol { --c: #f4a92e; }   /* solar */