:root {
  --green-900: #083d2e;
  --green-800: #0d5c46;
  --green-600: #159a63;
  --green-500: #1cb872;
  --green-400: #3fd68f;
  --ink: #0d1b17;
  --ink-soft: #4a5a55;
  --bg: #ffffff;
  --bg-alt: #f3f9f6;
  --border: #e1ece7;
  --card-bg: #ffffff;
  --shadow: 0 10px 30px rgba(13, 92, 70, 0.08);
  --radius: 16px;
  --max-width: 1160px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1512;
    --bg-alt: #0f1c17;
    --ink: #eef7f2;
    --ink-soft: #a9c2b8;
    --border: #1c2f28;
    --card-bg: #10201a;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  }
}

:root[data-theme="dark"] {
  --bg: #0b1512;
  --bg-alt: #0f1c17;
  --ink: #eef7f2;
  --ink-soft: #a9c2b8;
  --border: #1c2f28;
  --card-bg: #10201a;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --bg: #ffffff;
  --bg-alt: #f3f9f6;
  --ink: #0d1b17;
  --ink-soft: #4a5a55;
  --border: #e1ece7;
  --card-bg: #ffffff;
  --shadow: 0 10px 30px rgba(13, 92, 70, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

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

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

.text-gradient {
  background: linear-gradient(90deg, var(--green-600), var(--green-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-600);
  margin-bottom: 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(90deg, var(--green-600), var(--green-500));
  color: #fff;
  box-shadow: 0 8px 20px rgba(21, 154, 99, 0.35);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn-light {
  background: #fff;
  color: var(--green-800);
}
.btn-lg { padding: 14px 26px; font-size: 1rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.brand img { height: 36px; }
.main-nav {
  display: flex;
  gap: 24px;
  margin-left: auto;
}
.main-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--green-600); }
.nav-actions { display: flex; align-items: center; gap: 10px; margin-left: 8px; }
.nav-login, .nav-cta { white-space: nowrap; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-left: 8px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  margin: 0 7px;
}

/* Hero */
.hero { padding: 72px 0 56px; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { font-size: clamp(2rem, 4vw, 2.9rem); line-height: 1.15; margin: 0 0 18px; }
.hero .lead { font-size: 1.1rem; color: var(--ink-soft); margin: 0 0 28px; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-trust {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding: 0;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
.hero-trust li::before { content: "✓ "; color: var(--green-600); font-weight: 700; }

.mock-window {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.mock-bar {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  background: linear-gradient(90deg, var(--green-800), var(--green-600));
}
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.6); }
.mock-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.mock-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  color: var(--ink-soft);
}
.mock-row-total {
  color: var(--ink);
  font-weight: 700;
  font-size: 1.1rem;
  border-bottom: 2px solid var(--border);
}
.mock-chip {
  margin-top: 6px;
  align-self: flex-start;
  background: var(--bg-alt);
  color: var(--green-700, var(--green-600));
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
}
.mock-chip-alt { background: rgba(21,154,99,0.1); }

/* Logos strip */
.logos-strip { padding: 32px 0; background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.logos-title { text-align: center; color: var(--ink-soft); font-size: 0.9rem; margin: 0 0 18px; }
.logos-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 28px;
}
.logo-item { font-weight: 600; color: var(--ink); font-size: 0.95rem; white-space: nowrap; }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 640px; margin: 0 auto 44px; text-align: center; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 12px; }
.section-head p { color: var(--ink-soft); margin: 0; }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.feature-icon { font-size: 1.8rem; margin-bottom: 12px; }
.feature-card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.feature-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }

/* Tabs */
.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 28px;
}
.tab-btn {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--ink-soft);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
}
.tab-btn.is-active {
  background: linear-gradient(90deg, var(--green-600), var(--green-500));
  color: #fff;
  border-color: transparent;
}
.tab-panel {
  display: none;
  max-width: 640px;
  margin: 0 auto;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: var(--shadow);
}
.tab-panel.is-active { display: block; }
.tab-panel ul { margin: 0; padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 14px; }
.tab-panel li { color: var(--ink-soft); }
.tab-panel li strong { color: var(--ink); }

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}
.step-number {
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green-600), var(--green-400));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.step h3 { margin: 0 0 8px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }

/* CTA band */
.cta-band {
  background: linear-gradient(120deg, var(--green-800), var(--green-600));
  color: #fff;
  padding: 56px 0;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-inner h2 { margin: 0 0 8px; font-size: 1.6rem; }
.cta-inner p { margin: 0; opacity: 0.9; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-copy p { color: var(--ink-soft); }
.contact-list { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-direction: column; gap: 10px; }
.contact-list a { color: var(--green-600); text-decoration: none; font-weight: 600; }
.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-self: center;
}
.contact-card h3 { margin: 0; font-size: 1.15rem; }
.contact-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }
.btn-whatsapp {
  background: #25d366;
  color: #06341f;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.35);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  padding: 56px 24px 40px;
}
.footer-brand { max-width: 320px; }
.footer-logo { height: 30px; margin-bottom: 14px; }
.footer-brand p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 0 0 14px;
}
.footer-app-link {
  color: var(--green-600);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.9rem;
}
.footer-app-link:hover { text-decoration: underline; }
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col h4 {
  margin: 0 0 4px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.footer-col a, .footer-col span {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
}
.footer-col a:hover { color: var(--green-600); }
.footer-bottom { border-top: 1px solid var(--border); }
.footer-bottom-inner {
  padding: 18px 24px;
  color: var(--ink-soft);
  font-size: 0.85rem;
}
.footer-bottom-inner p { margin: 0; }

@media (max-width: 720px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand { max-width: none; }
}

/* Responsive */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .site-header.is-open .header-inner { flex-wrap: wrap; }
  .site-header.is-open .main-nav,
  .site-header.is-open .nav-actions {
    display: flex;
    width: 100%;
    order: 3;
  }
  .site-header.is-open .main-nav {
    flex-direction: column;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    margin-top: 12px;
  }
  .site-header.is-open .nav-actions {
    flex-direction: column;
    align-items: stretch;
    margin: 12px 0 4px;
  }
  .site-header.is-open .nav-actions .btn { justify-content: center; }
  .features-grid { grid-template-columns: 1fr; }
}