/* ==========================================================================
   volta.i — clone fiel do site institucional (voltai.eco.br)
   Fonte dos tokens: inspeção do site publicado (Poppins 800 nos títulos,
   Inter no corpo, fundo verde-escuro em gradiente, acento verde neon).
   ========================================================================== */

:root {
  --bg-950: #05140c;
  --bg-900: #0a2016;
  --bg-800: #0e2b1c;
  --card: #0d2419;
  --card-border: rgba(255,255,255,0.08);
  --line: rgba(255,255,255,0.12);
  --accent: #34d67a;
  --accent-soft: rgba(52, 214, 122, 0.12);
  --accent-soft-border: rgba(52, 214, 122, 0.35);
  --text: #f3faf5;
  --text-dim: #aec2b6;
  --text-faint: #7c9188;
  --white: #ffffff;

  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --font-display: "Poppins", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;

  --h1: clamp(34px, 4.6vw, 58px);
  --h2: clamp(26px, 3vw, 38px);
  --h3: 19px;
  --section-pad: clamp(56px, 8vw, 96px);
  --container: 1200px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg-950);
  color: var(--text-dim);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text);
  margin: 0;
  line-height: 1.12;
  font-weight: 800;
}
h1 { font-size: var(--h1); }
h2 { font-size: var(--h2); }
h3 { font-size: var(--h3); font-weight: 700; }
p { margin: 0; line-height: 1.65; }

/* fundo em gradiente verde-escuro contínuo, igual ao site real */
.page {
  background:
    radial-gradient(1100px 700px at 12% -10%, rgba(52,214,122,0.10), transparent 60%),
    linear-gradient(190deg, var(--bg-900) 0%, var(--bg-950) 55%, var(--bg-950) 100%);
  position: relative;
}
.page::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.05) 1px, transparent 1.3px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}

.section { padding: var(--section-pad) 0; position: relative; z-index: 1; }
.section-head { max-width: 640px; margin: 0 auto 44px; text-align: center; }
.section-head p { margin-top: 14px; font-size: 16.5px; }
.section-head.is-left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 7px 16px 7px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-border);
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 20, 12, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header.is-scrolled { background: rgba(5, 20, 12, 0.92); }
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 19px; color: var(--text); }
.brand svg { width: 32px; height: 32px; }
.brand .accent { color: var(--accent); }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a { font-size: 14.5px; font-weight: 500; color: var(--text-dim); padding: 9px 13px; border-radius: 999px; transition: color 0.2s ease, background 0.2s ease; }
.main-nav a:hover { color: var(--text); }
.main-nav a.is-active { color: var(--accent); font-weight: 700; background: var(--accent-soft); }

.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); background: transparent; color: var(--text); align-items: center; justify-content: center; cursor: pointer; }
.header-actions { display: flex; align-items: center; gap: 12px; }

.lang-switch { display: flex; align-items: center; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,0.03); }
.lang-btn { font-family: var(--font-body); font-size: 12px; font-weight: 700; letter-spacing: 0.02em; color: var(--text-faint); background: transparent; border: none; padding: 6px 10px; border-radius: 999px; cursor: pointer; transition: color 0.2s ease, background 0.2s ease; }
.lang-btn:hover { color: var(--text); }
.lang-btn[aria-pressed="true"] { color: #05140c; background: var(--accent); }

.mobile-panel { display: none; position: fixed; inset: 76px 0 0 0; background: var(--bg-950); z-index: 99; padding: 24px; overflow-y: auto; }
.mobile-panel.is-open { display: block; }
.mobile-panel a { display: block; padding: 14px 4px; font-size: 18px; font-weight: 600; color: var(--text); border-bottom: 1px solid var(--line); }
.mobile-panel .btn-row { margin-top: 24px; flex-direction: column; }
.mobile-panel .lang-switch { margin-top: 24px; justify-content: center; }
.mobile-panel .lang-btn { flex: 1; text-align: center; padding: 10px; }

/* ==========================================================================
   Botões
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), border-color 0.2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #05140c; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 28px -10px rgba(52,214,122,0.5); }
.btn-dark { background: #0c2117; color: var(--text); border-color: var(--line); }
.btn-dark:hover { border-color: var(--accent); color: var(--accent); }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding-top: clamp(56px, 9vw, 110px); padding-bottom: clamp(48px, 7vw, 90px); }
.hero .container { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.hero h1 .hl { color: var(--accent); }
.hero p.lead { margin-top: 18px; font-size: 17px; max-width: 460px; }
.hero .btn-row { margin-top: 28px; }

.hero-stats { display: flex; gap: 36px; margin-top: 40px; flex-wrap: wrap; }
.hero-stats .stat strong { display: block; font-family: var(--font-display); font-size: 26px; color: var(--accent); font-weight: 800; }
.hero-stats .stat span { font-size: 13.5px; color: var(--text-faint); }

.hero-art {
  position: relative;
  aspect-ratio: 1 / 0.82;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(52,214,122,0.09), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  transform-style: preserve-3d;
}
.hero-art svg { width: 62%; transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1); transform: translateZ(18px); }
.hero-art .badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(6,24,15,0.85);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 14px;
  backdrop-filter: blur(6px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  transform: translateZ(34px);
}
.hero-art .badge .ic { width: 30px; height: 30px; border-radius: 8px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; color: var(--accent); flex-shrink: 0; }
.hero-art .badge strong { display: block; font-size: 13.5px; color: var(--text); }
.hero-art .badge span { font-size: 11.5px; color: var(--text-faint); }
.hero-art .badge-1 { top: 10%; right: 6%; }
.hero-art .badge-2 { bottom: 14%; right: -4%; }

/* ==========================================================================
   Cards (ecossistema / razões / vantagens) — estilo "SaaS kit" do site real
   ========================================================================== */
.card-grid { display: grid; gap: 20px; }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  transition: border-color 0.25s ease, box-shadow 0.35s var(--ease-out);
}
.card:hover { border-color: rgba(52,214,122,0.3); box-shadow: 0 20px 40px -24px rgba(0,0,0,0.5); }
.card .ic {
  width: 44px; height: 44px;
  border-radius: 11px;
  background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 18px;
}
.card h3 { margin-bottom: 10px; }
.card p { font-size: 14.5px; }
.card .card-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--accent);
}
.card .card-link svg { transition: transform 0.2s var(--ease-out); }
.card:hover .card-link svg { transform: translateX(3px); }

/* ==========================================================================
   Tilt 3D + brilho interativo (hover, mouse fino) — dá profundidade aos
   cards e à ilustração do hero, no mesmo espírito da página de Franquias.
   Os valores de --tilt-x/--tilt-y/--glare-x/--glare-y são escritos pelo
   mousemove em js/main.js; aqui só consumimos via var().
   ========================================================================== */
.tilt {
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  transform: perspective(1000px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) translateZ(0);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}
.tilt-glare { position: relative; overflow: hidden; }
.tilt-glare::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: radial-gradient(circle at var(--glare-x, 50%) var(--glare-y, 50%), rgba(255,255,255,0.12), transparent 55%);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.tilt-glare:hover::after { opacity: 1; }
@media (prefers-reduced-motion: reduce), (hover: none) {
  .tilt { transform: none !important; transition: none; }
  .tilt-glare::after { display: none; }
}

/* ==========================================================================
   Passos (sequência real) e tabela de contato
   ========================================================================== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step .step-num { font-family: var(--font-display); font-weight: 800; font-size: 14px; color: var(--accent); margin-bottom: 12px; }
.step h3 { margin-bottom: 8px; }
.step p { font-size: 14.5px; }

.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 44px; }

/* ==========================================================================
   CTA final
   ========================================================================== */
.cta-final {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: clamp(36px, 6vw, 56px);
  text-align: center;
}
.cta-final h2 { max-width: 560px; margin: 0 auto; }
.cta-final p { margin-top: 12px; max-width: 460px; margin-left: auto; margin-right: auto; }
.cta-final .btn-row { margin-top: 26px; justify-content: center; }

/* ==========================================================================
   Formulário
   ========================================================================== */
.form-card { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius-lg); padding: 32px; }
.hp-field { position: absolute !important; left: -9999px !important; top: auto; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.field label { font-size: 13px; font-weight: 600; color: var(--text-dim); }
.field input, .field select, .field textarea {
  background: var(--bg-950);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 12.5px; color: var(--text-faint); margin-top: 14px; }
.form-status { margin-top: 14px; font-size: 14px; font-weight: 600; display: none; }
.form-status.is-visible { display: block; }
.form-status.is-success { color: var(--accent); }
.form-status.is-error { color: #f4a3a3; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--bg-950); border-top: 1px solid var(--line); padding: 56px 0 26px; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 36px; }
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { font-size: 14px; max-width: 280px; color: var(--text-faint); }
.footer-col h4 { font-family: var(--font-body); font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 14px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-col a { font-size: 14px; color: var(--text-faint); transition: color 0.2s ease; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--line); padding-top: 22px; display: flex; justify-content: space-between; font-size: 12.5px; color: var(--text-faint); flex-wrap: wrap; gap: 10px; }

/* ==========================================================================
   WhatsApp flutuante
   ========================================================================== */
.whatsapp-float {
  position: fixed; bottom: 22px; right: 22px; width: 56px; height: 56px; border-radius: 50%;
  background: var(--accent); color: #05140c; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 14px 30px -12px rgba(52,214,122,0.55); z-index: 90;
}
.whatsapp-float svg { width: 27px; height: 27px; }

/* ==========================================================================
   Reveal (restrito)
   ========================================================================== */
.reveal { opacity: 1; transform: translateY(0); transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out); }
.reveal.reveal-hidden { opacity: 0; transform: translateY(20px); }
@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none !important; }
  .reveal.reveal-hidden { opacity: 1; transform: none; }
}

/* ==========================================================================
   Responsivo
   ========================================================================== */
@media (max-width: 1040px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { max-width: 420px; margin: 0 auto; }
  .card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .card-grid.cols-3, .card-grid.cols-4, .card-grid.cols-2 { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
}