/* ==========================================================================
   Refrigeração Ponto Frio — Página de apresentação
   ========================================================================== */
:root {
  --blue-900: #002a72;
  --blue-700: #0052d9;
  --blue-600: #1b63ff;
  --blue-500: #3b7bff;
  --blue-100: #e8f1ff;
  --blue-50: #f4f8ff;
  --ink: #0b1222;
  --slate-700: #334155;
  --slate-500: #66738f;
  --line: #e3e8f3;
  --surface: #ffffff;
  --bg: #f5f8fe;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --font-heading: "Sora", "Inter", system-ui, sans-serif;
  --shadow-md: 0 18px 44px rgba(7, 19, 49, .12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--slate-700);
  -webkit-font-smoothing: antialiased;
  padding-top: 76px;
}

img { max-width: 100%; display: block; }

.wrap {
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 24px;
}

.eyebrow {
  font-family: var(--font-heading);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--blue-700);
  margin-bottom: 10px;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(7, 19, 49, .88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.logo img { height: 46px; width: auto; border-radius: 10px; }
.logo:focus-visible img { outline: 3px solid #3b7bff; outline-offset: 3px; }
.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { color: #c3d2ec; text-decoration: none; font-weight: 500; }
.main-nav a:hover { color: #fff; }

/* Hero */
.hero { background: #002a72; color: #fff; padding: 56px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: center; }
.tag { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: rgba(53,214,240,.14); border: 1px solid rgba(53,214,240,.25); color: #8fdcff; font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 18px; }
.hero h1 { font-family: var(--font-heading); font-size: clamp(2rem,4vw,2.95rem); line-height: 1.12; letter-spacing: -.02em; color: #fff; margin: 0 0 16px; max-width: 22ch; }
.hero h1 span { color: #7be6f7; }
.hero-sub { max-width: 54ch; color: #b9c9e6; font-size: 1.05rem; line-height: 1.65; margin-bottom: 18px; }
.hero-points { display: grid; gap: 10px; list-style: none; padding: 0; margin: 0 0 22px; }
.hero-points li { color: #dce8ff; padding-left: 24px; position: relative; }
.hero-points li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #35d6f0; font-weight: 800; }
.hero-cta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.hero-visual { display: grid; place-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; margin-top: 14px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: 999px; padding: 8px 14px; color: #9fc0ff; font-size: .82rem; }
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: #25d366; box-shadow: 0 0 0 3px rgba(37,211,102,.18); }

/* Strip */
.strip { background: var(--blue-700); color: #fff; padding: 14px 0; font-size: .88rem; }
.strip p { margin: 0; }
.strip strong { color: #bfe0ff; }

/* Sections */
.section { padding: 72px 0; background: var(--bg); }
.section--light { background: var(--surface); }
.section--dark { background: var(--blue-900); color: #dce8ff; }
.section h2 { font-family: var(--font-heading); font-size: clamp(1.6rem,2.5vw,2.15rem); line-height: 1.18; letter-spacing: -.02em; color: var(--ink); margin-bottom: 14px; }
.section--dark h2 { color: #fff; }
.section p { color: var(--slate-500); line-height: 1.65; }
.section--dark p { color: #b9c9e6; }

/* Services grid */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; transition: transform .25s, box-shadow .25s; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card-icon { width: 44px; height: 44px; color: var(--blue-700); margin-bottom: 12px; }
.card h3 { font-family: var(--font-heading); font-size: 1.02rem; color: var(--ink); margin: 0 0 8px; }
.card p { color: var(--slate-500); font-size: .9rem; line-height: 1.6; margin: 0; }

/* Differentials */
.diff-list { display: grid; gap: 14px; padding: 0; list-style: none; margin: 0; max-width: 720px; }
.diff-list li { display: flex; align-items: flex-start; gap: 14px; background: var(--blue-50); border: 1px solid rgba(27, 99, 255, .12); border-radius: 14px; padding: 14px; color: var(--slate-700); }
.diff-check { flex: 0 0 28px; width: 28px; height: 28px; border-radius: 50%; background: var(--blue-700); color: #fff; font-weight: 800; display: grid; place-items: center; }

/* Region tags */
.region-tags { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; list-style: none; margin-top: 18px; }
.region-tags li { padding: 9px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-weight: 600; color: var(--blue-700); }

/* CTA */
.cta-box {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: center;
  padding: 8px;
}
.cta-box h2 { margin-bottom: 10px; }
.small-note { margin-top: 10px; font-size: .74rem; color: #9fc0ff; }
.cta-info { background: var(--blue-700); border-radius: 18px; padding: 24px; }
.cta-info p { margin: 0 0 10px; color: #fff !important; }
.cta-info a { color: #bfe0ff; text-decoration: underline; }
.cta-info p:last-child { margin-bottom: 0; }

/* Footer */
.site-footer { background: #03081a; color: #8a95ac; font-size: .85rem; padding: 28px 0; border-top: 1px solid rgba(255,255,255,.06); }
.site-footer a { color: #dce8ff; }
.foot-small { margin-top: 14px; }

/* Buttons */
.wa-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 12px;
  background: #25d366; color: #0b3d1e;
  font-weight: 700; font-size: .95rem; text-decoration: none;
  box-shadow: 0 10px 26px rgba(37,211,102,.35);
  transition: transform .2s, filter .2s;
}
.wa-btn:hover { transform: translateY(-2px); filter: brightness(1.05); }
.wa-btn--sm { padding: 11px 18px; font-size: .85rem; }
.wa-btn--big { font-size: 1rem; padding: 16px 26px; }

.ghost-btn { display: inline-flex; align-items: center; gap: 8px; color: #bfe0ff; text-decoration: none; font-weight: 600; padding: 12px 18px; border-radius: 10px; border: 1px solid rgba(255,255,255,.16); transition: background .2s, border-color .2s, color .2s; }
.ghost-btn:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.28); color: #fff; }

/* Floating WhatsApp */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  display: flex; align-items: center; gap: 12px;
  background: #25d366; color: #0b3d1e;
  height: 58px; padding: 0 18px; border-radius: 999px;
  box-shadow: 0 18px 40px rgba(11,59,30,.3), 0 0 0 0 rgba(37,211,102,.35);
  animation: pulse 2.6s ease-out infinite;
  text-decoration: none;
}
.wa-float-text { font-weight: 700; font-size: .82rem; }
.wa-float:hover { transform: translateY(-2px); }

@keyframes pulse {
  0%   { box-shadow: 0 18px 40px rgba(11,59,30,.3), 0 0 0 0 rgba(37,211,102,.35); }
  70%,100% { box-shadow: 0 18px 40px rgba(11,59,30,.3), 0 0 0 14px rgba(37,211,102,0); }
}

:focus-visible { outline: 3px solid #3b7bff; outline-offset: 2px; }

/* Responsivo */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { margin-top: 6px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-box { grid-template-columns: 1fr; gap: 22px; }
}
@media (max-width: 620px) {
  body { padding-top: 68px; }
  .site-header .wrap { padding-inline: 16px; }
  .hero h1 { font-size: 1.65rem; }
  .services-grid { grid-template-columns: 1fr; }
  .wa-float { right: 14px; bottom: 14px; height: 52px; }
  .wa-float-text { display: none; }
}