:root {
  --blue: #0a5bff;
  --blue-dark: #073cc8;
  --green: #53d769;
  --ink: #0b1020;
  --muted: #5f6675;
  --paper: #f6f8fb;
  --white: #ffffff;
  --line: #dfe5ee;
  --shadow: 0 18px 50px rgba(8, 24, 60, 0.12);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; background: var(--ink); color: white; padding: 10px 16px; z-index: 100; }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(223,229,238,.85); backdrop-filter: blur(14px); }
.nav { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand img { width: 174px; height: 52px; object-fit: contain; object-position: left center; }
.nav-links { display: flex; align-items: center; gap: 24px; font-weight: 750; font-size: .93rem; }
.nav-links a:not(.button):hover, .nav-links a[aria-current="page"] { color: var(--blue); }
.language-switch { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: .78rem; font-weight: 900; }
.language-switch a { color: var(--muted); }
.language-switch a[aria-current="true"] { color: var(--blue); }
.language-switch span { color: #aab1bd; }
.menu-button { display: none; border: 0; background: transparent; font: inherit; font-weight: 800; padding: 10px; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 50px; padding: 12px 20px; border-radius: 999px; background: var(--blue); color: white; font-weight: 850; line-height: 1.1; transition: transform .18s ease, background .18s ease; }
.button:hover { background: var(--blue-dark); transform: translateY(-2px); }
.button.green { background: var(--green); color: #07180b; }
.button.green:hover { background: #42c958; }
.button.ghost { color: var(--ink); background: white; border: 1px solid var(--line); }
.button.small { min-height: 42px; padding: 10px 16px; }
.eyebrow { display: inline-flex; color: var(--blue); font-size: .82rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }

.hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #f7faff 0%, #eef9f1 100%); }
.hero-grid { min-height: 640px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 58px; padding-block: 70px; }
.hero-copy h1, .page-hero h1 { margin: 14px 0 20px; max-width: 780px; font-size: clamp(2.7rem, 6vw, 5.7rem); line-height: .97; letter-spacing: -.055em; }
.hero-number { display: block; color: var(--blue); font-size: 1.32em; line-height: .78; letter-spacing: -.075em; }
.hero-copy p, .page-hero p { max-width: 640px; color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-image { position: relative; }
.hero-image::before { content: ""; position: absolute; inset: 8% -7% -7% 14%; border-radius: 34px; background: var(--green); transform: rotate(3deg); }
.hero-image img { position: relative; width: 100%; aspect-ratio: 1 / 1.03; object-fit: cover; border-radius: 32px; box-shadow: var(--shadow); }
.hero-badge { position: absolute; z-index: 2; left: -28px; bottom: 28px; max-width: 220px; padding: 18px 20px; border-radius: 18px; background: var(--ink); color: white; box-shadow: var(--shadow); font-weight: 850; line-height: 1.3; }
.hero-badge span { display: block; color: var(--green); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 5px; }

.trust-strip { background: var(--ink); color: white; }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.trust-item { padding: 24px 28px; text-align: center; font-weight: 800; border-right: 1px solid rgba(255,255,255,.14); }
.trust-item:last-child { border-right: 0; }
.trust-item strong { color: var(--green); }

.section { padding-block: 92px; }
.section.soft { background: var(--paper); }
.section.dark { color: white; background: var(--ink); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 38px; }
.section-heading h2 { margin: 8px 0 0; max-width: 720px; font-size: clamp(2rem, 4vw, 3.7rem); line-height: 1.05; letter-spacing: -.04em; }
.section-heading p { margin: 0; max-width: 460px; color: var(--muted); }
.dark .section-heading p { color: #bec6d6; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: white; transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.card-body { padding: 25px; }
.card h3 { margin: 0 0 8px; font-size: 1.35rem; }
.card p { margin: 0 0 18px; color: var(--muted); }
.text-link { color: var(--blue); font-weight: 850; }
.text-link::after { content: " →"; }

.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.split.reverse { grid-template-columns: 1.1fr .9fr; }
.split img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 30px; box-shadow: var(--shadow); }
.split h2 { margin: 10px 0 18px; font-size: clamp(2.1rem, 4vw, 3.8rem); line-height: 1.04; letter-spacing: -.04em; }
.split p { color: var(--muted); }
.check-list { display: grid; gap: 13px; padding: 0; margin: 24px 0 30px; list-style: none; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; font-weight: 700; }
.check-list li::before { content: "✓"; flex: 0 0 26px; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; color: #07180b; background: var(--green); font-weight: 950; }

.page-hero { background: var(--ink); color: white; }
.page-hero-grid { min-height: 520px; display: grid; grid-template-columns: 1fr .78fr; gap: 54px; align-items: center; padding-block: 62px; }
.page-hero p { color: #c8d0df; }
.page-hero img { width: 100%; aspect-ratio: 1.15/1; object-fit: cover; border-radius: 28px; }
.page-hero .eyebrow { color: var(--green); }
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.detail { padding: 28px; border-radius: 20px; background: white; border: 1px solid var(--line); }
.detail h3 { margin: 0 0 7px; font-size: 1.25rem; }
.detail p { margin: 0; color: var(--muted); }
.class-grid .featured { grid-column: span 2; color: white; border-color: var(--blue); background: linear-gradient(125deg, var(--blue-dark), var(--blue)); }
.class-grid .featured p { max-width: 760px; color: #e7edff; }
.class-label { display: inline-flex; margin-bottom: 7px; color: var(--blue); font-size: .72rem; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
.class-grid .featured .class-label { color: var(--green); }
.video-showcase { display: grid; grid-template-columns: 1fr .68fr; gap: 72px; align-items: center; }
.video-copy h2 { margin: 10px 0 18px; font-size: clamp(2.1rem, 4vw, 3.8rem); line-height: 1.04; letter-spacing: -.04em; }
.video-copy p { color: var(--muted); }
.video-frame { justify-self: center; width: min(100%, 390px); padding: 10px; border-radius: 30px; background: var(--ink); box-shadow: var(--shadow); }
.video-frame video { display: block; width: 100%; aspect-ratio: 9/16; border-radius: 22px; background: #000; object-fit: cover; }
.feature-band { padding: 34px; display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; border-radius: 26px; color: white; background: linear-gradient(125deg, var(--blue-dark), var(--blue)); }
.feature-band h2 { margin: 0 0 6px; font-size: clamp(1.7rem, 3vw, 2.6rem); line-height: 1.1; }
.feature-band p { margin: 0; color: #e7edff; }

.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; }
.contact-card { padding: 34px; border-radius: 24px; background: var(--paper); }
.contact-card.dark { background: var(--ink); color: white; }
.contact-card h2 { margin: 0 0 18px; font-size: 2rem; line-height: 1.1; }
.contact-list { display: grid; gap: 17px; margin: 0; padding: 0; list-style: none; }
.contact-list small { display: block; color: var(--muted); font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.contact-card.dark small { color: #9da7ba; }
.contact-list a { font-weight: 800; font-size: 1.08rem; }
.map { min-height: 390px; width: 100%; border: 0; border-radius: 24px; }

.cta { padding-block: 80px; background: var(--green); }
.cta-inner { display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; }
.cta h2 { margin: 0; font-size: clamp(2rem, 4vw, 4rem); line-height: 1; letter-spacing: -.045em; }
.cta p { margin: 10px 0 0; color: #17381d; font-weight: 650; }
.cta .button { background: var(--ink); }

.site-footer { padding: 58px 0 28px; color: #c1c9d7; background: #060914; }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(2, .7fr); gap: 40px; }
.footer-logo { width: 190px; filter: invert(1); margin-bottom: 16px; }
.footer-grid h3 { color: white; margin: 0 0 14px; font-size: 1rem; }
.footer-links { display: grid; gap: 8px; }
.footer-links a:hover { color: var(--green); }
.copyright { margin-top: 42px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: .88rem; }
.mobile-cta { display: none; }

@media (max-width: 900px) {
  .nav { min-height: 68px; }
  .brand img { width: 145px; height: 44px; }
  .menu-button { display: block; }
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 20px; background: white; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav-links.open { display: grid; }
  .language-switch { justify-self: start; }
  .hero-grid, .page-hero-grid, .split, .split.reverse, .contact-grid, .video-showcase { grid-template-columns: 1fr; }
  .hero-grid { padding-block: 48px 70px; }
  .page-hero-grid { padding-block: 54px; }
  .hero-image { max-width: 630px; }
  .hero-badge { left: 14px; bottom: 14px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .video-showcase { gap: 42px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, 1160px); }
  .hero-grid { min-height: 0; gap: 40px; }
  .hero-copy h1, .page-hero h1 { font-size: clamp(2.55rem, 15vw, 4.25rem); }
  .hero-actions .button { width: 100%; }
  .trust-grid, .cards, .detail-grid, .footer-grid { grid-template-columns: 1fr; }
  .class-grid .featured { grid-column: auto; }
  .trust-item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .trust-item:last-child { border-bottom: 0; }
  .section { padding-block: 66px; }
  .hero-image::before { inset: 7% -2% -4% 8%; }
  .hero-badge { max-width: calc(100% - 28px); font-size: .9rem; }
  .split { gap: 34px; }
  .split img { aspect-ratio: 4/3; }
  .feature-band, .cta-inner { grid-template-columns: 1fr; }
  .feature-band .button, .cta .button { width: 100%; }
  .mobile-cta { display: grid; position: fixed; z-index: 45; left: 12px; right: 12px; bottom: 12px; grid-template-columns: 1fr 52px; gap: 8px; padding: 8px; border-radius: 999px; background: rgba(255,255,255,.95); box-shadow: 0 12px 40px rgba(0,0,0,.22); backdrop-filter: blur(10px); }
  .mobile-cta .button { min-height: 48px; }
  .mobile-cta .whatsapp { display: grid; place-items: center; border-radius: 50%; background: var(--green); font-size: 1.25rem; font-weight: 900; }
  body { padding-bottom: 76px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}