/* =============================================================
   OzTerra Global — design tokens
   Light content zones by default; dark zones re-scope the same
   token names (nav, hero, footer, dark CTA bands, product highlight).
   ============================================================= */
:root {
  --bg:        #FFFFFF;
  --bg-alt:    #F2F3F3;
  --bg-3:      #FFFFFF;
  --bg-4:      #EDEFEF;
  --ink:       #14171A;
  --ink-soft:  #4B5357;
  --ink-mute:  #6E7679;
  --line:      #DCE0E1;
  --line-soft: #E9EBEB;

  --accent:       #F5B800;   /* OzTerra safety yellow */
  --accent-hover: #D9A400;
  --accent-ink:   #1A1200;   /* dark text ON TOP of yellow */
  --accent-soft:  #FFF6DD;
  --steel:        #3E5866;   /* secondary cool accent */
  --ok:           #1F7A4D;

  --sans:    "Inter", -apple-system, "Segoe UI", system-ui, sans-serif;
  --display: "Oswald", "Arial Narrow", sans-serif;
  --mono:    "JetBrains Mono", "Consolas", monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1240px;
  --radius: 10px;
  --radius-sm: 6px;
}

/* Dark zones: nav, hero, footer, dark CTA bands, QCR highlight panel */
.nav, .hero, .mobile-menu, .footer, .section-dark, .qcr-panel {
  --bg:        #0D0F10;
  --bg-alt:    #16191B;
  --bg-3:      #1B1F21;
  --bg-4:      #22272A;
  --ink:       #F2F1EC;
  --ink-soft:  #C3C7C8;
  --ink-mute:  #8A9093;
  --line:      rgba(242,241,236,0.14);
  --line-soft: rgba(242,241,236,0.08);
}
.section-dark, .qcr-panel { background: var(--bg); }

/* =============================================================
   Reset & base
   ============================================================= */
* , *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--ink-soft);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; margin: 0; }
p { margin: 0; }
h1, h2, h3, h4 {
  font-family: var(--display); font-weight: 600; text-transform: uppercase;
  line-height: 1.03; letter-spacing: 0.01em; margin: 0; color: var(--ink); text-wrap: balance;
}
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 9999;
  padding: .6rem 1rem; background: var(--ink); color: var(--bg);
  border-radius: 6px; font-weight: 600; transition: top .25s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* =============================================================
   Utilities
   ============================================================= */
.container { max-width: var(--container); margin-inline: auto; padding-inline: 1.25rem; }
.section { padding-block: clamp(2.5rem, 5.5vw, 5rem); position: relative; }
.section-tight { padding-block: clamp(1.75rem, 3.5vw, 3rem); }
.section-alt { background: var(--bg-alt); }
.center { text-align: center; margin-inline: auto; }
.max-60 { max-width: 62ch; }
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-hover); margin-bottom: .9rem;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--accent); flex-shrink: 0; }
.nav, .hero, .section-dark, .qcr-panel { }
.nav .eyebrow, .hero .eyebrow, .section-dark .eyebrow, .qcr-panel .eyebrow { color: var(--accent); }

h1 { font-size: clamp(2.2rem, 5.4vw, 4rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
h4 { font-size: .95rem; letter-spacing: .03em; }
.lede { font-size: clamp(1.02rem, 1.5vw, 1.18rem); color: var(--ink-soft); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* =============================================================
   Buttons
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .9rem 1.7rem; border-radius: 999px; font-weight: 700; font-size: .92rem;
  letter-spacing: .02em; text-transform: uppercase; white-space: nowrap;
  transition: transform .25s var(--ease-out), background .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 8px 22px -8px rgba(245,184,0,.55); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink-mute); transform: translateY(-2px); }
.btn-block { width: 100%; }

/* =============================================================
   Nav
   ============================================================= */
.nav {
  position: sticky; top: 0; z-index: 500;
  background: rgba(13,15,16,0.88);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 1rem; }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand-logo { height: 34px; width: auto; display: block; }
.nav-links { display: none; align-items: center; gap: 1.7rem; }
.nav-links a {
  font-family: var(--display); font-size: .88rem; font-weight: 500; letter-spacing: .03em;
  text-transform: uppercase; color: var(--ink-soft); position: relative; padding-block: .3rem;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--accent); transition: width .3s var(--ease-out);
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { width: 100%; }
.nav-links a[aria-current="page"] { color: var(--ink); }

.lang-toggle {
  display: flex; align-items: center; border: 1px solid var(--line); border-radius: 999px;
  overflow: hidden; flex-shrink: 0;
}
.lang-toggle button {
  padding: .4rem .7rem; font-family: var(--mono); font-size: .74rem; font-weight: 700;
  color: var(--ink-mute); letter-spacing: .04em;
}
.lang-toggle button.is-active { background: var(--accent); color: var(--accent-ink); }

.nav-cta { display: none; }
.nav-burger {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 8px;
  border: 1px solid var(--line); color: var(--ink); flex-shrink: 0;
}
.nav-burger svg { width: 19px; height: 19px; }

@media (min-width: 1080px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-burger { display: none; }
}

.mobile-menu {
  position: fixed; inset: 76px 0 0 0; z-index: 490; background: var(--bg);
  padding: 2rem 1.25rem; transform: translateX(100%); transition: transform .4s var(--ease-out);
  overflow-y: auto;
}
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu a {
  display: block; font-family: var(--display); font-size: 1.7rem; text-transform: uppercase;
  padding-block: .65rem; border-bottom: 1px solid var(--line-soft); color: var(--ink);
}
.mobile-menu .btn { margin-top: 1.5rem; width: 100%; }
.mobile-menu .lang-toggle { margin-top: 1.5rem; width: fit-content; }

/* =============================================================
   Hero
   ============================================================= */
.hero {
  position: relative; min-height: 82svh; display: flex; align-items: flex-end;
  padding-block: 3rem clamp(2.5rem, 6vw, 4.5rem); overflow: hidden; background: var(--bg);
}
.hero-page { min-height: 52svh; }
.hero-bg { position: absolute; inset: 0; z-index: 0; background: var(--bg); }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-scrim {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(180deg, rgba(13,15,16,.35) 0%, rgba(13,15,16,.45) 35%, rgba(13,15,16,.92) 85%, var(--bg) 100%),
    linear-gradient(90deg, rgba(13,15,16,.88) 0%, rgba(13,15,16,.25) 55%);
}
.hero-inner { position: relative; z-index: 2; max-width: 760px; }
.hero h1 { margin-bottom: 1.1rem; }
.hero .lede { max-width: 54ch; margin-bottom: 2rem; color: var(--ink-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; }

/* =============================================================
   Cards / grids
   ============================================================= */
.card {
  background: var(--bg-3); border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 1.7rem; box-shadow: 0 2px 10px -4px rgba(20,23,26,.08);
}
.grid-2 { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
.grid-3 { display: grid; gap: 1.3rem; grid-template-columns: 1fr; }
.grid-4 { display: grid; gap: 1.1rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 960px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.pillar { padding: 1.6rem; }
.pillar-icon {
  width: 42px; height: 42px; border-radius: 9px; background: var(--accent-soft); color: var(--accent-hover);
  display: grid; place-items: center; margin-bottom: 1rem;
}
.pillar-icon svg { width: 55%; height: 55%; }
.pillar h3 { font-size: 1.02rem; margin-bottom: .5rem; }
.pillar p { font-size: .9rem; }

.tag-row { display: flex; flex-wrap: wrap; gap: .6rem; }
.tag {
  display: inline-flex; align-items: center; padding: .5rem .95rem; border-radius: 999px;
  background: var(--bg-3); border: 1px solid var(--line-soft); font-size: .85rem; font-weight: 600; color: var(--ink-soft);
}

/* Industry / application card with photo */
.app-card { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 260px; display: flex; align-items: flex-end; }
.app-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease-out); z-index: 0; }
.app-card .scrim { position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(13,15,16,.05) 30%, rgba(13,15,16,.92) 100%); }
.app-card-body { position: relative; z-index: 2; padding: 1.4rem; color: #F2F1EC; }
.app-card h3 { color: #F2F1EC; font-size: 1.05rem; margin-bottom: .35rem; }
.app-card p { font-size: .85rem; color: #C3C7C8; }
@media (hover: hover) { .app-card:hover img { transform: scale(1.06); } }

/* =============================================================
   Spec table
   ============================================================= */
.spec-table-wrap { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: var(--radius); }
.spec-table { width: 100%; border-collapse: collapse; min-width: 480px; font-size: .88rem; }
.spec-table th {
  text-align: left; font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .05em;
  color: var(--ink-mute); font-weight: 600; padding: .8rem 1rem; background: var(--bg-alt); border-bottom: 1px solid var(--line-soft);
}
.spec-table td { padding: .8rem 1rem; border-bottom: 1px solid var(--line-soft); color: var(--ink-soft); }
.spec-table tr:last-child td { border-bottom: none; }
.spec-table td:first-child { font-weight: 600; color: var(--ink); }
.spec-table td.mono { font-family: var(--mono); }

/* =============================================================
   QCR / highlight stat panel (dark)
   ============================================================= */
.qcr-panel { border-radius: var(--radius); padding: clamp(1.6rem, 4vw, 2.6rem); }
.qcr-stats { display: grid; gap: 1.4rem; grid-template-columns: 1fr; margin-top: 1.6rem; }
@media (min-width: 720px) { .qcr-stats { grid-template-columns: repeat(3, 1fr); } }
.qcr-stat-num { font-family: var(--mono); font-weight: 700; font-size: clamp(1.8rem, 3.4vw, 2.4rem); color: var(--accent); line-height: 1; }
.qcr-stat-label { font-size: .85rem; color: var(--ink-soft); margin-top: .4rem; max-width: 30ch; }
.qcr-list { display: grid; gap: .7rem; margin-top: 1.6rem; }
.qcr-list li { display: flex; gap: .7rem; align-items: flex-start; font-size: .92rem; color: var(--ink-soft); }
.qcr-list svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; margin-top: .15rem; }

/* =============================================================
   Stat strip (generic, light)
   ============================================================= */
.stat-strip { display: grid; gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; grid-template-columns: repeat(2,1fr); }
@media (min-width: 720px) { .stat-strip { grid-template-columns: repeat(4,1fr); } }
.stat-cell { background: var(--bg-4); padding: 1.3rem 1.1rem; }
.stat-num { font-family: var(--mono); font-weight: 700; font-size: clamp(1.4rem, 2.6vw, 1.9rem); color: var(--ink); }
.stat-label { font-size: .78rem; color: var(--ink-mute); margin-top: .35rem; line-height: 1.3; }

/* =============================================================
   Steps (numbered process)
   ============================================================= */
.step-row { display: flex; gap: 1.1rem; align-items: flex-start; padding-block: 1.2rem; border-top: 1px solid var(--line-soft); }
.step-row:first-child { border-top: none; }
.step-num { font-family: var(--mono); font-weight: 700; font-size: 1.4rem; color: var(--accent-hover); min-width: 2.4ch; }
.step-body h3 { font-size: 1rem; margin-bottom: .35rem; }
.step-body p { font-size: .9rem; }

.faq-item { border-top: 1px solid var(--line-soft); }
.faq-item:last-child { border-bottom: 1px solid var(--line-soft); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding-block: 1.1rem; background: none; border: none; text-align: left; font-family: inherit;
  font-size: .98rem; font-weight: 600; color: var(--ink); cursor: pointer;
}
.faq-q .plus { font-size: 1.2rem; color: var(--accent-hover); transition: transform .25s var(--ease-out); flex-shrink: 0; }
.faq-item.is-open .faq-q .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s var(--ease-out); }
.faq-a-inner { padding-bottom: 1.2rem; font-size: .92rem; color: var(--ink-soft); max-width: 68ch; }

.warning-box {
  border: 1px solid #E8B4AE; border-left: 4px solid #B3261E; background: #FDF3F2;
  border-radius: var(--radius-sm); padding: 1.3rem 1.5rem;
}
.warning-box h3 { color: #B3261E; font-size: .95rem; letter-spacing: .03em; text-transform: uppercase; margin-bottom: .6rem; }
.warning-box p, .warning-box li { font-size: .92rem; color: var(--ink); }
.warning-box ul { margin: 0; padding-left: 1.2rem; }
.warning-box + .warning-box { margin-top: 1rem; }

.source-note {
  display: inline-flex; align-items: center; gap: .5rem; font-size: .82rem; color: var(--ink-mute);
  border: 1px solid var(--line-soft); border-radius: 999px; padding: .5rem 1rem; background: var(--bg-3);
}

/* =============================================================
   Forms (quote request)
   ============================================================= */
.field { margin-bottom: 1.2rem; }
.field label { display: block; font-size: .8rem; font-weight: 600; color: var(--ink-soft); margin-bottom: .4rem; text-transform: uppercase; letter-spacing: .03em; }
.field input, .field select, .field textarea {
  width: 100%; background: var(--bg-alt); border: 1px solid var(--line); color: var(--ink);
  border-radius: var(--radius-sm); padding: .8rem .95rem; font: inherit; font-size: .95rem;
  transition: border-color .25s var(--ease-out), background .25s var(--ease-out);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); outline: none; background: var(--bg); }
.field textarea { min-height: 110px; resize: vertical; }
.field-row { display: grid; gap: 1.2rem; }
@media (min-width: 640px) { .field-row.cols-2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 640px) { .field-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; } }

.form-success { display: none; text-align: center; padding: 2.4rem 1rem; }
.form-success.is-visible { display: block; }
.form-success svg { width: 52px; height: 52px; color: var(--ok); margin-inline: auto 1rem; }
.form-error { display: none; font-size: .85rem; color: #B3261E; border-left: 2px solid #B3261E; padding-left: .9rem; margin-top: 1rem; }
.form-error.is-visible { display: block; }

/* =============================================================
   Footer
   ============================================================= */
.footer { background: var(--bg); border-top: 1px solid var(--line-soft); padding-block: 3.2rem 2rem; }
.footer-grid { display: grid; gap: 2.2rem; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
.footer-logo { height: 30px; width: auto; margin-bottom: 1rem; }
.footer h4 { color: var(--ink); margin-bottom: 1rem; font-size: .82rem; letter-spacing: .04em; }
.footer ul li { margin-bottom: .6rem; }
.footer-grid a { color: var(--ink-soft); font-size: .9rem; }
.footer a:hover { color: var(--ink); }
.footer-bottom {
  margin-top: 2.4rem; padding-top: 1.5rem; border-top: 1px solid var(--line-soft);
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
  font-size: .78rem; color: var(--ink-mute);
}
.disclaimer { font-size: .82rem; color: var(--ink-mute); max-width: 62ch; }

/* =============================================================
   Reveal on scroll
   ============================================================= */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }

/* =============================================================
   Language visibility
   ============================================================= */
[data-lang] { }
html[data-active-lang="es"] [data-lang="en"] { display: none !important; }
html[data-active-lang="en"] [data-lang="es"] { display: none !important; }

/* =============================================================
   WhatsApp float
   ============================================================= */
.whatsapp-float {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 400; width: 56px; height: 56px;
  border-radius: 50%; background: #25D366; display: grid; place-items: center;
  box-shadow: 0 8px 24px -4px rgba(0,0,0,.35); transition: transform .25s var(--ease-out);
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 29px; height: 29px; }
@media (min-width: 720px) { .whatsapp-float { right: 1.8rem; bottom: 1.8rem; } }