:root {
  --teal: #0d9488;
  --teal-deep: #0f766e;
  --teal-soft: #ccfbf1;
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --bg: #ffffff;
  --bg-soft: #f1f6f8;
  --line: #e2e8f0;
  --wa: #25d366;
  --radius: 16px;
  --shadow: 0 10px 30px -12px rgba(15,23,42,0.15);
  --shadow-sm: 0 2px 8px rgba(15,23,42,0.06);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Manrope', system-ui, sans-serif;
  color: var(--ink); background: var(--bg);
  line-height: 1.6; -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 22px; }
.wrap-narrow { max-width: 760px; }
.center { text-align: center; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; font-weight: 800; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px;
  font-weight: 700; font-size: 15px; text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn-lg { padding: 15px 28px; font-size: 16px; }
.btn-wa { background: var(--wa); color: #052e16; box-shadow: var(--shadow-sm); }
.btn-wa:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost { background: transparent; color: var(--teal-deep); border: 1.5px solid var(--teal); }
.btn-ghost:hover { background: var(--teal-soft); }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.86); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; gap: 18px; padding: 14px 22px; }
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; font-weight: 800; font-size: 19px; }
.brand-mark { color: var(--teal); font-size: 22px; }
.brand-name { letter-spacing: -0.02em; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--ink-soft); font-weight: 600; font-size: 15px; }
.nav a:hover { color: var(--teal-deep); }
.nav-burger { display: none; }
.topbar .btn-wa { padding: 9px 16px; font-size: 14px; }

/* Hero */
.hero {
  background:
    radial-gradient(ellipse at 70% -10%, var(--teal-soft), transparent 55%),
    linear-gradient(180deg, var(--bg-soft), var(--bg));
  padding: 72px 0 64px;
}
.hero-inner { max-width: 760px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.hero-content { max-width: 600px; }
.hero-media img { width: 100%; height: auto; border-radius: 20px; box-shadow: var(--shadow); object-fit: cover; }
.brand-mark { display: inline-flex; }
.brand-mark .logo-ico { width: 30px; height: 30px; }
.eyebrow {
  color: var(--teal-deep); font-weight: 700; font-size: 13px;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px;
}
h1 { font-size: clamp(32px, 6vw, 52px); margin-bottom: 18px; }
.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--ink-soft); margin-bottom: 28px; max-width: 60ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }
.trust { list-style: none; display: flex; flex-wrap: wrap; gap: 14px 28px; }
.trust li { color: var(--muted); font-size: 14px; }
.trust strong { color: var(--ink); display: block; font-size: 18px; }

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-soft); }
.section h2 { font-size: clamp(26px, 4vw, 36px); margin-bottom: 10px; }
.section-sub { color: var(--muted); font-size: 18px; margin-bottom: 40px; }

/* Grid + cards */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow-sm); transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-ico { color: var(--teal); margin-bottom: 16px; display: inline-flex; padding: 12px; background: var(--teal-soft); border-radius: 14px; }
.card-ico svg { width: 26px; height: 26px; }
.card h3 { font-size: 20px; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 15px; }

/* Features */
.feature { display: flex; gap: 16px; align-items: flex-start; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feature-ico { flex-shrink: 0; color: var(--teal); display: inline-flex; }
.feature-ico svg { width: 26px; height: 26px; }
.feature h3 { font-size: 18px; margin-bottom: 6px; }
.feature p { color: var(--ink-soft); font-size: 15px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.step { text-align: center; }
.step-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--teal); color: #fff; font-weight: 800; font-size: 20px;
  margin-bottom: 14px;
}
.step h3 { font-size: 18px; margin-bottom: 6px; }
.step p { color: var(--ink-soft); font-size: 15px; }

/* Reviews */
.review { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.stars { color: #f59e0b; font-size: 17px; letter-spacing: 2px; margin-bottom: 12px; }
.review p { color: var(--ink-soft); font-size: 15px; margin-bottom: 14px; }
.review cite { color: var(--muted); font-style: normal; font-weight: 600; font-size: 14px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.contact-card h3 { font-size: 17px; margin-bottom: 10px; color: var(--teal-deep); }
.contact-card p { color: var(--ink-soft); font-size: 15px; margin-bottom: 12px; }
.link { color: var(--teal-deep); font-weight: 700; text-decoration: none; font-size: 15px; }
.link:hover { text-decoration: underline; }

/* FAQ */
.faq { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 4px 20px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 16px 0; list-style: none; font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--teal); font-size: 22px; line-height: 1; }
.faq[open] summary::after { content: "−"; }
.faq p { color: var(--ink-soft); font-size: 15px; padding: 0 0 18px; }

/* CTA final */
.cta-final { background: linear-gradient(135deg, var(--teal-deep), var(--teal)); color: #fff; padding: 72px 0; }
.cta-final h2 { font-size: clamp(26px, 4vw, 38px); margin-bottom: 12px; }
.cta-final p { font-size: 18px; opacity: 0.92; margin-bottom: 28px; }
.cta-final .btn-wa { background: #fff; color: var(--teal-deep); }

/* Footer */
.footer { background: var(--ink); color: #cbd5e1; padding: 36px 0; font-size: 14px; }
.footer strong { color: #fff; }
.footer p { margin-bottom: 4px; }

/* Demo badge */
.demo-badge {
  position: fixed; bottom: 16px; right: 16px; z-index: 60;
  background: var(--ink); color: #fff; text-decoration: none;
  padding: 8px 14px; border-radius: 999px; font-size: 12px; font-weight: 600;
  box-shadow: var(--shadow); opacity: 0.9;
}
.demo-badge strong { color: #5eead4; }
.demo-badge:hover { opacity: 1; }

/* Responsive */
@media (max-width: 860px) {
  .grid, .grid-2, .grid-3, .steps, .contact-grid { grid-template-columns: 1fr 1fr; }
  .topbar-inner { flex-wrap: wrap; }
  .nav-burger { display: inline-flex; align-items: center; margin-left: auto; padding: 6px; color: var(--ink); cursor: pointer; }
  .nav-burger svg { width: 26px; height: 26px; }
  .nav { display: none; flex-basis: 100%; flex-direction: column; gap: 0; margin: 6px 0 0; }
  .nav a { padding: 12px 2px; border-top: 1px solid var(--line); font-size: 16px; }
  .nav-toggle:checked ~ .nav { display: flex; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-media img { max-height: 340px; }
}
@media (max-width: 560px) {
  .grid, .grid-2, .grid-3, .steps, .contact-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .hero { padding: 52px 0 48px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card, .btn { transition: none; }
}