/* ==========================================================================
   Tarcísio Chaves Dias Barboza — Climatização
   Design system institucional (tema: azul gelado + prata, climatização)
   ========================================================================== */

:root {
  /* Marca */
  --brand:        #1fa2e0;   /* azul principal */
  --brand-2:      #4fc4f5;   /* azul claro */
  --brand-deep:   #1668bf;   /* azul profundo */
  --steel:        #9fb0c2;   /* prata / aço */
  --steel-light:  #cfe0ee;

  /* Superfícies escuras (header / hero / rodapé) */
  --ink:          #0b1424;
  --ink-2:        #0f1d33;
  --ink-3:        #16294a;
  --on-ink:       #e8eef6;
  --on-ink-dim:   #a9b6c7;

  /* Superfícies claras (conteúdo) */
  --bg:           #ffffff;
  --bg-soft:      #f4f7fb;
  --bg-soft-2:    #eef3f9;
  --line:         #e3e9f1;
  --text:         #1a2330;
  --text-dim:     #5a6675;

  /* Tokens */
  --radius:       16px;
  --radius-sm:    10px;
  --shadow:       0 10px 30px rgba(15, 30, 60, .10);
  --shadow-lg:    0 24px 60px rgba(11, 18, 32, .35);
  --maxw:         1120px;
  --ease:         cubic-bezier(.2, .7, .2, 1);
}

/* ------------------------------- Base ----------------------------------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); font-weight: 750; }
h3 { font-size: 1.18rem; font-weight: 700; }
p  { margin: 0 0 1rem; }
.wrap { width: min(100% - 2.4rem, var(--maxw)); margin-inline: auto; }
.eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--brand);
  padding: .35rem .7rem; border-radius: 999px;
  background: color-mix(in srgb, var(--brand) 12%, transparent);
}
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section--soft { background: var(--bg-soft); }
.lead { font-size: 1.14rem; color: var(--text-dim); max-width: 62ch; }
.center { text-align: center; margin-inline: auto; }

/* ------------------------------ Botões ---------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 650; font-size: .98rem; cursor: pointer;
  padding: .85rem 1.5rem; border-radius: 999px; border: 1px solid transparent;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn--primary {
  background: linear-gradient(135deg, var(--brand-2), var(--brand-deep));
  color: #fff; box-shadow: 0 12px 26px color-mix(in srgb, var(--brand) 40%, transparent);
}
.btn--ghost {
  background: transparent; color: var(--on-ink);
  border-color: color-mix(in srgb, var(--on-ink) 30%, transparent);
}
.btn--ghost:hover { background: color-mix(in srgb, var(--on-ink) 8%, transparent); }

/* ------------------------------ Header ---------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--ink) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--on-ink) 10%, transparent);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .7rem 0; }
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; }
.brand__logo {
  width: 44px; height: 44px; border-radius: 11px; object-fit: cover;
  box-shadow: 0 4px 14px rgba(0,0,0,.4);
}
.brand__name { color: var(--on-ink); font-weight: 800; letter-spacing: -.01em; font-size: 1.05rem; line-height: 1.05; }
.brand__name span { color: var(--brand-2); }
.brand__tag { display: block; color: var(--on-ink-dim); font-weight: 500; font-size: .72rem; letter-spacing: .02em; }
.nav__links { display: flex; align-items: center; gap: .35rem; }
.nav__links a {
  color: var(--on-ink-dim); font-weight: 600; font-size: .95rem;
  padding: .5rem .8rem; border-radius: 8px; transition: color .2s, background .2s;
}
.nav__links a:hover { color: var(--on-ink); background: color-mix(in srgb, var(--on-ink) 8%, transparent); text-decoration: none; }
.nav__toggle { display: none; }

/* ------------------------------ Hero ------------------------------------ */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1200px 500px at 78% -10%, color-mix(in srgb, var(--brand) 34%, transparent), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, color-mix(in srgb, var(--brand-deep) 40%, transparent), transparent 55%),
    linear-gradient(180deg, var(--ink-2), var(--ink));
  color: var(--on-ink);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--on-ink) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--on-ink) 6%, transparent) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(1000px 600px at 50% 20%, #000, transparent 75%);
  opacity: .5;
}
.hero__inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center;
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(3.5rem, 8vw, 6rem);
}
.hero__title { margin-top: 1rem; }
.hero__title b { color: transparent; background: linear-gradient(120deg, var(--brand-2), var(--steel-light)); -webkit-background-clip: text; background-clip: text; }
.hero__sub { color: var(--on-ink-dim); font-size: 1.15rem; max-width: 52ch; margin-top: .4rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; }
.hero__art { display: grid; place-items: center; }
.hero__logo {
  width: min(100%, 400px); border-radius: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid color-mix(in srgb, var(--on-ink) 12%, transparent);
}
.hero__stats { display: flex; gap: 2rem; flex-wrap: wrap; margin-top: 2.4rem; }
.stat b { display: block; font-size: 1.5rem; font-weight: 800; color: var(--on-ink); }
.stat span { color: var(--on-ink-dim); font-size: .9rem; }

/* ------------------------------ Cards ----------------------------------- */
.grid { display: grid; gap: 1.2rem; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; box-shadow: var(--shadow); transition: transform .25s var(--ease), box-shadow .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 42px rgba(15,30,60,.14); }
.card__icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--brand) 12%, transparent); color: var(--brand);
  margin-bottom: 1rem;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: .35rem; }
.card p { color: var(--text-dim); font-size: .98rem; margin: 0; }

/* Pilares (valores) */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.pillar { text-align: center; padding: 1.5rem 1rem; }
.pillar__num { font-size: 2.2rem; font-weight: 800; color: var(--brand); line-height: 1; }
.pillar h3 { margin: .6rem 0 .3rem; }
.pillar p { color: var(--text-dim); font-size: .96rem; margin: 0; }

/* Sobre — layout split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.about-card {
  background: linear-gradient(160deg, var(--ink-2), var(--ink)); color: var(--on-ink);
  border-radius: var(--radius); padding: 2.2rem; box-shadow: var(--shadow-lg);
}
.about-card ul { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: .8rem; }
.about-card li { display: flex; gap: .7rem; align-items: flex-start; color: var(--on-ink-dim); }
.about-card li svg { flex: 0 0 auto; margin-top: .2rem; color: var(--brand-2); }

/* Faixa CTA */
.band {
  background:
    radial-gradient(700px 300px at 85% 0%, color-mix(in srgb, var(--brand) 30%, transparent), transparent 60%),
    linear-gradient(180deg, var(--ink-2), var(--ink));
  color: var(--on-ink); border-radius: var(--radius); padding: clamp(2rem, 5vw, 3.2rem);
  text-align: center;
}
.band h2 { color: var(--on-ink); }
.band p { color: var(--on-ink-dim); max-width: 55ch; margin-inline: auto; }

/* ------------------------------ Rodapé ---------------------------------- */
.site-footer { background: var(--ink); color: var(--on-ink-dim); padding: 3rem 0 2rem; }
.footer__top { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between; align-items: flex-start; }
.footer__brand { display: flex; align-items: center; gap: .8rem; }
.footer__brand img { width: 52px; height: 52px; border-radius: 12px; }
.footer__brand b { color: var(--on-ink); font-size: 1.1rem; display: block; }
.footer__links { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.footer__links a { color: var(--on-ink-dim); font-weight: 600; }
.footer__links a:hover { color: var(--on-ink); }
.footer__legal {
  margin-top: 2rem; padding-top: 1.4rem; border-top: 1px solid color-mix(in srgb, var(--on-ink) 12%, transparent);
  display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; justify-content: space-between; font-size: .86rem;
}
.footer__legal .cnpj { color: var(--on-ink); font-weight: 600; }

/* --------------------------- Páginas legais ----------------------------- */
.legal-hero {
  background: linear-gradient(180deg, var(--ink-2), var(--ink)); color: var(--on-ink);
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}
.legal-hero h1 { margin: 0; }
.legal-hero p { color: var(--on-ink-dim); margin: .5rem 0 0; }
.legal-body { padding: clamp(2.5rem, 6vw, 4rem) 0; }
.legal-body .wrap { max-width: 820px; }
.legal-body h2 { margin-top: 2.4rem; color: var(--text); }
.legal-body h2:first-of-type { margin-top: 0; }
.legal-body h3 { margin-top: 1.6rem; }
.legal-body ul { padding-left: 1.2rem; color: var(--text-dim); }
.legal-body li { margin-bottom: .5rem; }
.legal-body p { color: var(--text-dim); }
.legal-toc {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 1.2rem 1.4rem; margin-bottom: 2.4rem;
}
.legal-toc b { display: block; margin-bottom: .5rem; color: var(--text); }
.legal-toc ol { margin: 0; padding-left: 1.2rem; color: var(--text-dim); }
.legal-toc a { font-weight: 500; }
.callout {
  background: var(--bg-soft); border-left: 4px solid var(--brand);
  padding: 1rem 1.2rem; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.4rem 0;
}
.callout p { margin: 0; color: var(--text); }

/* ------------------------------ Utilitário ------------------------------ */
.updated { font-size: .9rem; color: var(--text-dim); }
.back-top { display: inline-flex; align-items: center; gap: .4rem; margin-top: 1rem; font-weight: 600; }

/* ------------------------------ Responsivo ------------------------------ */
@media (max-width: 860px) {
  .hero__inner { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
  .hero__inner .eyebrow { margin-inline: auto; }
  .hero__sub { margin-inline: auto; }
  .hero__cta, .hero__stats { justify-content: center; }
  .hero__art { order: -1; }
  .hero__logo { width: min(78%, 300px); }
  .split { grid-template-columns: 1fr; gap: 1.6rem; }
  .grid--3, .grid--4, .pillars { grid-template-columns: 1fr 1fr; }
  .nav__links {
    position: fixed; inset: 0 0 0 auto; width: min(78%, 320px);
    flex-direction: column; align-items: stretch; gap: .2rem;
    background: var(--ink-2); padding: 5rem 1.2rem 2rem;
    transform: translateX(100%); transition: transform .3s var(--ease);
    box-shadow: -20px 0 60px rgba(0,0,0,.4);
  }
  .nav__links a { color: var(--on-ink); font-size: 1.05rem; padding: .8rem 1rem; }
  #navtoggle:checked ~ .nav__links { transform: translateX(0); }
  .nav__toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border-radius: 10px; cursor: pointer; z-index: 60;
    color: var(--on-ink); background: color-mix(in srgb, var(--on-ink) 10%, transparent);
  }
  .nav__toggle svg { width: 24px; height: 24px; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .grid--3, .grid--4, .pillars { grid-template-columns: 1fr; }
  .footer__top { flex-direction: column; }
  .hero__stats { gap: 1.2rem; }
}

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