:root {
  --ink: #101418;
  --muted: #606b76;
  --line: #dfe5e8;
  --paper: #f6f8f5;
  --green: #16a163;
  --lime: #b8f24b;
  --deep: #0b1f1a;
  --steel: #183234;
  --white: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px clamp(18px, 5vw, 64px);
  background: rgba(246, 248, 245, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand img { width: 126px; display: block; }
nav { display: flex; gap: 24px; color: var(--muted); font-size: 14px; font-weight: 800; }
nav a:hover { color: var(--ink); }

.nav-cta, .primary, .whatsapp-strip a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 8px;
  padding: 0 18px;
  background: var(--green);
  color: #fff;
  font-weight: 900;
  box-shadow: 0 14px 34px rgba(22, 161, 99, .22);
}
.secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 0 18px;
  background: #fff;
  color: var(--ink);
  font-weight: 900;
}
.on-dark { border-color: rgba(255,255,255,.5); background: transparent; color: #fff; }

.hero {
  min-height: calc(100vh - 75px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: clamp(30px, 6vw, 80px);
  align-items: center;
  padding: clamp(48px, 7vw, 96px) clamp(18px, 5vw, 72px);
  background:
    linear-gradient(125deg, rgba(246,248,245,.98), rgba(246,248,245,.72)),
    radial-gradient(circle at 80% 18%, rgba(184,242,75,.45), transparent 34%),
    linear-gradient(135deg, #eff7e9, #e8f2f3);
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2, h3 { margin: 0; color: var(--deep); line-height: 1.04; letter-spacing: 0; }
h1 { max-width: 820px; font-size: clamp(42px, 6vw, 78px); font-weight: 900; }
h2 { font-size: clamp(30px, 4vw, 52px); font-weight: 900; }
h3 { font-size: 21px; }
.lead {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.65;
}
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.hero-panel {
  border-radius: 8px;
  padding: 26px;
  background: linear-gradient(145deg, #10251f, #1a3d3f);
  box-shadow: 0 32px 80px rgba(11, 31, 26, .24);
}
.panel-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #dfffe9; font-weight: 900; }
.panel-top img { width: 140px; }
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 32px;
}
.metric-grid div {
  min-height: 140px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 8px;
  padding: 18px;
  background: rgba(255,255,255,.07);
}
.metric-grid strong { display: block; color: var(--lime); font-size: 34px; }
.metric-grid span { display: block; margin-top: 8px; color: rgba(255,255,255,.82); font-weight: 700; }

.whatsapp-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(18px, 5vw, 72px);
  background: var(--deep);
  color: #fff;
}
.whatsapp-strip h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); }
.whatsapp-strip p { margin: 8px 0 0; color: rgba(255,255,255,.72); }

.section, .dark-section, .contact {
  padding: clamp(56px, 7vw, 96px) clamp(18px, 5vw, 72px);
}
.section-head { max-width: 820px; margin-bottom: 30px; }
.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.cards article {
  min-height: 300px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: #fff;
}
.cards span { color: var(--green); font-weight: 900; }
.cards h3 { margin-top: 28px; }
.cards p, .steps p, .contact p { color: var(--muted); line-height: 1.65; }

.dark-section {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, 1.1fr);
  gap: 40px;
  align-items: start;
  background: var(--steel);
}
.dark-section h2 { color: #fff; }
.program-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.program-list li {
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 8px;
  padding: 18px;
  background: rgba(255,255,255,.07);
  color: #fff;
  font-weight: 800;
}

.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.steps div { border-top: 4px solid var(--green); background: #fff; border-radius: 8px; padding: 22px; }
.steps b { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; border-radius: 50%; background: #e9f8ef; color: var(--green); }
.steps h3 { margin-top: 18px; }

.contact {
  margin: clamp(18px, 4vw, 48px);
  border-radius: 8px;
  background: linear-gradient(135deg, #0b1f1a, #155243);
  color: #fff;
}
.contact h2, .contact p { max-width: 850px; color: #fff; }
.contact p { font-size: 18px; }

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 32px clamp(18px, 5vw, 72px) 96px;
  background: #fff;
  color: var(--muted);
}
footer img { width: 112px; }
footer a { color: var(--green); font-weight: 900; }

.float-wa {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 136px;
  min-height: 54px;
  border-radius: 999px;
  background: var(--green);
  color: #fff;
  font-weight: 900;
  box-shadow: 0 18px 44px rgba(22, 161, 99, .32);
}
.mobile-wa { display: none; }

@media (max-width: 980px) {
  nav { display: none; }
  .hero, .dark-section, .cards, .steps { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
}
@media (max-width: 680px) {
  .header { padding: 12px 14px; }
  .brand img { width: 104px; }
  .nav-cta { min-height: 42px; padding: 0 12px; }
  .actions, .whatsapp-strip, footer { flex-direction: column; align-items: flex-start; }
  .primary, .secondary, .whatsapp-strip a { width: 100%; }
  .metric-grid { grid-template-columns: 1fr; }
  .float-wa { display: none; }
  .mobile-wa {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 40;
    display: block;
    padding: 10px 12px;
    background: rgba(255,255,255,.96);
    border-top: 1px solid var(--line);
  }
  .mobile-wa a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    border-radius: 8px;
    background: var(--green);
    color: #fff;
    font-weight: 900;
  }
}