:root {
  --bg: #F7F8FA;
  --surface: #FFFFFF;
  --surface-2: #EEF2F1;
  --text: #0F172A;
  --muted: #5B6474;
  --border: #E2E6EA;
  --primary: #0F6E56;
  --primary-hover: #0B5240;
  --primary-soft: #E3F2EE;
  --wa: #25D366;
  --ig: #D6249F;
  --ms: #0A7CFF;
  --chat-bg: #E9EEF0;
  --bubble-in: #FFFFFF;
  --bubble-out: #D9F4E8;
  --shadow: 0 20px 50px rgba(15, 23, 42, .10);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B1015;
    --surface: #121A21;
    --surface-2: #0F161C;
    --text: #E8EDF2;
    --muted: #9AA6B2;
    --border: #1F2A33;
    --primary: #19B48A;
    --primary-hover: #22C99C;
    --primary-soft: rgba(25, 180, 138, .14);
    --chat-bg: #0D1418;
    --bubble-in: #1B252D;
    --bubble-out: #11463A;
    --shadow: 0 20px 50px rgba(0, 0, 0, .45);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* Topo */
.topbar { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-mark { width: 30px; height: 30px; border-radius: 9px; background: var(--primary); position: relative; flex-shrink: 0; }
.brand-mark::before { content: ""; position: absolute; inset: 7px; border: 3px solid #fff; border-radius: 50%; }
.brand-mark::after { content: ""; position: absolute; width: 5px; height: 5px; background: #fff; border-radius: 50%; top: 12.5px; left: 12.5px; }
.brand-name { font-size: 20px; letter-spacing: -.02em; font-weight: 500; }
.brand-name b { font-weight: 800; color: var(--primary); }
.brand-name.small { font-size: 17px; }
.nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }

/* Botões */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 20px; border-radius: 10px; font-weight: 600; font-size: 15px; text-decoration: none; transition: background .15s, border-color .15s, transform .1s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.nav .btn-ghost, .btn-ghost { border: 1px solid var(--border); color: var(--text); background: var(--surface); }
.btn-ghost:hover { border-color: var(--primary); }

/* Hero */
.hero { padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-block; margin: 0 0 14px; padding: 4px 12px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-size: 13px; font-weight: 600; }
.hero h1 { font-size: clamp(32px, 5vw, 50px); line-height: 1.1; letter-spacing: -.03em; margin: 0 0 18px; text-wrap: balance; }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 28px; max-width: 34em; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Ilustração do painel */
.mock { display: grid; grid-template-columns: 0.9fr 1.3fr; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; min-height: 300px; }
.mock-side { border-right: 1px solid var(--border); padding: 10px; display: flex; flex-direction: column; gap: 4px; }
.mock-conv { display: flex; gap: 10px; align-items: center; padding: 10px; border-radius: 10px; font-size: 13px; }
.mock-conv span:last-child { display: flex; flex-direction: column; min-width: 0; }
.mock-conv small { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-conv.active { background: var(--primary-soft); }
.dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.dot.wa { background: var(--wa); } .dot.ig { background: var(--ig); } .dot.ms { background: var(--ms); }
.mock-chat { background: var(--chat-bg); padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.bubble { max-width: 85%; padding: 8px 12px; border-radius: 12px; font-size: 13.5px; line-height: 1.4; }
.bubble.in { background: var(--bubble-in); align-self: flex-start; border-top-left-radius: 4px; }
.bubble.out { background: var(--bubble-out); align-self: flex-end; border-top-right-radius: 4px; }
.mock-tag { margin-top: auto; align-self: center; font-size: 11.5px; color: var(--muted); background: var(--surface); padding: 3px 10px; border-radius: 999px; }

/* Seções */
.section { padding: 72px 0; }
.section-alt { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { font-size: clamp(26px, 3.4vw, 34px); letter-spacing: -.02em; margin: 0 0 32px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 22px; }
.feature svg { width: 26px; height: 26px; fill: none; stroke: var(--primary); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { font-size: 17px; margin: 12px 0 6px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li { display: flex; gap: 14px; align-items: flex-start; }
.step-n { width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.steps h3 { margin: 4px 0 4px; font-size: 17px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

.contact { text-align: center; max-width: 640px; }
.contact h2 { margin-bottom: 12px; }
.contact p { color: var(--muted); margin: 0 0 24px; font-size: 17px; }

/* Rodapé */
.footer { border-top: 1px solid var(--border); padding: 32px 0; font-size: 14px; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: flex-start; }
.footer p { margin: 6px 0 0; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .features, .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav a:not(.btn) { display: none; }
  .hero { padding: 44px 0 36px; }
  .features, .steps { grid-template-columns: 1fr; }
  .mock { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .section { padding: 52px 0; }
}