:root {
  --ink: #111111;
  --ink-soft: #3a3a3a;
  --muted: #6b6b6b;
  --paper: #ffffff;
  --tint: #f3f6f7;
  --line: #e2e7e9;
  --accent: #2a9fc1;
  --accent-deep: #1b7896;
  --whatsapp: #25d366;
  --whatsapp-deep: #1da851;
  --radius: 14px;
  --serif: "DM Serif Display", Georgia, "Times New Roman", serif;
  --sans: "Jost", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink-soft);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--accent-deep); }

h1, h2, h3 { color: var(--ink); line-height: 1.15; margin: 0 0 .5em; }
h1, h2 { font-family: var(--serif); font-weight: 400; }
h1 { font-size: clamp(2.3rem, 6vw, 3.8rem); }
h2 { font-size: clamp(1.9rem, 4.5vw, 2.7rem); }
h3 { font-size: 1.2rem; font-weight: 600; }

.wrap { width: min(1100px, 100% - 32px); margin-inline: auto; }

.eyebrow {
  margin: 0 0 .75rem;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .7);
}
.eyebrow--dark { color: var(--accent-deep); }

.lead { font-size: 1.2rem; max-width: 34em; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .9rem 1.5rem;
  border-radius: 999px;
  border: 2px solid transparent;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  transition: background-color .2s, color .2s, border-color .2s, transform .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn--small { padding: .5rem 1.1rem; font-size: .95rem; }
.btn--whatsapp { background: var(--whatsapp); color: #0b2e17; }
.btn--whatsapp:hover { background: var(--whatsapp-deep); color: #fff; }
.btn--light { background: #fff; color: var(--ink); }
.btn--light:hover { background: var(--tint); }
.btn--outline { border-color: rgba(255, 255, 255, .6); color: #fff; }
.btn--outline:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }

.cta-row { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.75rem; }
.cta-row--center { justify-content: center; }

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(17, 17, 17, .94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; min-height: 64px; }
.topbar__brand img { width: 64px; }
.topbar__nav { display: flex; align-items: center; gap: 1.6rem; }
.topbar__nav a:not(.btn) {
  color: rgba(255, 255, 255, .82);
  text-decoration: none;
  font-size: .95rem;
  letter-spacing: .04em;
}
.topbar__nav a:not(.btn):hover { color: #fff; }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  color: rgba(255, 255, 255, .85);
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(42, 159, 193, .35), transparent 60%),
    radial-gradient(700px 400px at -10% 110%, rgba(42, 159, 193, .2), transparent 60%),
    var(--ink);
}
.hero h1 { color: #fff; }
.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: center;
  gap: 3.5rem;
  padding-block: clamp(3.5rem, 9vw, 7rem);
}
.hero__logo { width: 100%; max-width: 360px; justify-self: center; }

/* Sections */
.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section--tint { background: var(--tint); }
.section--dark { background: var(--ink); color: rgba(255, 255, 255, .82); }
.section--dark h2 { color: #fff; }

.steps {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}
.step { border-top: 2px solid var(--ink); padding-top: 1.4rem; }
.step__num {
  display: inline-block;
  font-family: var(--serif);
  font-size: 2.6rem;
  line-height: 1;
  color: var(--accent);
  margin-bottom: .6rem;
}
.step p { margin: 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.card p { margin: 0; }
.card--feature { background: var(--ink); border-color: var(--ink); color: rgba(255, 255, 255, .82); }
.card--feature h3 { color: #fff; }
.note { margin: 1.75rem 0 0; color: var(--muted); }

.areas {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}
.area-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}
.area-list li {
  padding: .85rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-weight: 500;
  color: var(--ink);
}
.area-list li::before { content: "●"; color: var(--accent); font-size: .6em; margin-right: .7em; vertical-align: middle; }
.area-list li:last-child { color: var(--muted); font-weight: 400; }

.contact { text-align: center; }
.contact .lead { margin-inline: auto; }

/* Footer */
.footer { padding-block: 2.5rem 6rem; border-top: 1px solid var(--line); }
.footer__inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: .5rem; }
.footer__inner img { width: 90px; margin-bottom: .5rem; }
.footer p { margin: 0; color: var(--muted); font-size: .95rem; }
.footer a { color: var(--ink); }
.footer__small { font-size: .85rem !important; }

/* Floating WhatsApp button */
.float-wa {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--whatsapp);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
  transition: transform .2s;
}
.float-wa:hover { transform: scale(1.06); }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

@media (max-width: 820px) {
  .topbar__nav a:not(.btn) { display: none; }
  .hero__inner { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
  .hero__logo { max-width: 220px; }
  .hero .lead { margin-inline: auto; }
  .hero .cta-row { justify-content: center; }
  .steps, .cards, .areas { grid-template-columns: 1fr; }
  .areas { gap: 2rem; }
}

@media (max-width: 420px) {
  .cta-row .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .float-wa { transition: none; }
}