/*
  unitedstoamaro.com — folha de estilo compartilhada
  Tokens alinhados à identidade real da United Idiomas (extraídos do
  CSS oficial de unitedidiomas.com em jul/2026):
  - Tipografia única: Montserrat (sem serifa)
  - Azul de marca: #185BA9 · Rosa/magenta de destaque: #F20059
  - Verde: #33B561 (usado na CTA de WhatsApp, por reconhecimento)
  Extraída para arquivo externo (antes inline em cada página) para que o
  navegador cacheie uma vez só e sirva todas as 6 páginas — relevante pra
  Core Web Vitals num site onde o usuário navega entre várias páginas na
  mesma visita, e pra manutenção (editar cor/tipografia em 1 lugar só).
*/

:root {
  --blue: #185BA9;
  --blue-deep: #103F79;
  /* Ajustado de #F20059 para #CC004D em jul/2026: o tom original tinha
     contraste 4.27:1 sobre branco (abaixo do mínimo WCAG AA de 4.5:1 para
     texto pequeno). #CC004D mede 5.7:1, mesmo matiz (~337°), só um pouco
     mais escuro/menos saturado. */
  --pink: #CC004D;
  /* Ajustado de #33B561/#278F4C para #226F3E/#1A5730 em jul/2026: texto
     branco sobre o verde original tinha contraste 2.65:1 (bem abaixo do
     mínimo de 3:1 mesmo pra texto grande) — era o item mais grave do
     relatório de acessibilidade, por ser o CTA mais repetido do site.
     #226F3E mede 6.15:1 com texto branco; ainda lê como "verde de ação"
     (mesma família do verde do WhatsApp), só mais escuro. */
  --green: #226F3E;
  --green-deep: #1A5730;
  /* Rosa claro só para uso sobre o fundo azul escuro (.sobre): o --pink
     normal (#CC004D) mede 1.18:1 contra o azul --blue (#185BA9) —
     praticamente ilegível. Achado real via auditoria de contraste em
     jul/2026, depois do primeiro ajuste de cor (que só cobriu rosa sobre
     branco). #FFC6DE mede 4.63:1 contra o azul. */
  --pink-on-dark: #FFC6DE;
  --ink: #1A1A1A;
  --paper: #FFFFFF;
  --slate: #666666;
  --line: #E3E6EA;
  --card: #FFFFFF;
  --bg-soft: #F3F4F6;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: 'Montserrat', system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}

h1, h2, h3, .display {
  font-family: 'Montserrat', system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

a { color: inherit; }

a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 2px;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pink);
  margin-bottom: 14px;
}

/* ---------- header ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1080px;
  margin: 0 auto;
  gap: 24px;
}

.logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  color: var(--blue);
  flex-shrink: 0;
}
.logo span {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pink);
  margin-top: 2px;
}

.nav-links {
  display: flex;
  gap: 22px;
  list-style: none;
  font-size: 0.88rem;
  font-weight: 600;
  flex-wrap: wrap;
}
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--pink); }
.nav-links a[aria-current="page"] { color: var(--pink); }

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green);
  color: #fff !important;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  transition: background 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}
.btn-cta:hover { background: var(--green-deep); }

@media (max-width: 900px) {
  .nav-links { display: none; }
}

/* ---------- hero (Home) ---------- */
.hero {
  padding: 88px 0 64px;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  line-height: 1.08;
  margin-bottom: 22px;
}
.hero p.lead {
  font-size: 1.12rem;
  color: var(--slate);
  max-width: 46ch;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.trust-line {
  font-size: 0.88rem;
  color: var(--slate);
}
.trust-line strong { color: var(--blue); }

.stamp {
  justify-self: end;
  width: 176px;
  height: 176px;
  border-radius: 50%;
  border: 1.5px solid var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  flex-shrink: 0;
}
.stamp::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed var(--pink);
  border-radius: 50%;
}
.stamp-inner { font-family: 'Montserrat', sans-serif; }
.stamp-year {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--blue);
  display: block;
  line-height: 1;
}
.stamp-label {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pink);
  display: block;
  margin-top: 6px;
}

@media (max-width: 760px) {
  .hero-grid { grid-template-columns: 1fr; }
  .stamp { justify-self: start; margin-top: 8px; }
}

/* ---------- page-hero (páginas internas) ---------- */
.page-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 {
  font-size: clamp(2rem, 3.6vw, 2.7rem);
  line-height: 1.12;
  margin-bottom: 16px;
  max-width: 28ch;
}
.page-hero p.lead {
  font-size: 1.05rem;
  color: var(--slate);
  max-width: 58ch;
}
.page-hero .hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 26px;
}

/* ---------- section genérica ---------- */
.section { padding: 72px 0; }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); }
.section-head p { color: var(--slate); margin-top: 10px; }

/* ---------- grid de cards (diferenciais / formatos / programas) ---------- */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
.diff-grid--2 { grid-template-columns: repeat(2, 1fr); }
.diff-grid--4 { grid-template-columns: repeat(4, 1fr); }
.diff-item {
  background: var(--card);
  padding: 30px 26px;
}
.diff-item .eyebrow { margin-bottom: 10px; }
.diff-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--blue);
}
.diff-item p {
  font-size: 0.92rem;
  color: var(--slate);
}

@media (max-width: 760px) {
  .diff-grid, .diff-grid--2, .diff-grid--4 { grid-template-columns: 1fr; }
}
@media (min-width: 761px) and (max-width: 980px) {
  .diff-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- sobre (bloco azul) ---------- */
.sobre {
  background: var(--blue);
  color: var(--paper);
}
.sobre .eyebrow { color: var(--pink-on-dark); }
.sobre h2 { color: var(--paper); }
.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.sobre p { color: rgba(255,255,255,0.85); margin-bottom: 16px; }
.sobre-facts {
  display: grid;
  gap: 18px;
  border-left: 1px solid rgba(255,255,255,0.25);
  padding-left: 28px;
}
.fact dt {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pink-on-dark);
  margin-bottom: 4px;
  font-weight: 700;
}
.fact dd { font-size: 0.98rem; }

@media (max-width: 760px) {
  .sobre-grid { grid-template-columns: 1fr; }
  .sobre-facts { border-left: none; padding-left: 0; border-top: 1px solid rgba(255,255,255,0.25); padding-top: 24px; }
}

/* ---------- prova social / depoimentos ---------- */
.prova { text-align: center; }
.rating-badge {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 18px 34px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  margin-bottom: 44px;
}
.rating-badge .num { font-family: 'Montserrat', sans-serif; font-size: 1.1rem; font-weight: 800; color: var(--blue); }
.rating-badge .sub { font-size: 0.85rem; color: var(--slate); }
.rating-badge .sub a { color: var(--pink); font-weight: 700; }

.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  text-align: left;
}
.testi {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  font-size: 0.92rem;
  color: var(--slate);
}
.testi .who {
  margin-top: 14px;
  font-weight: 700;
  color: var(--ink);
  font-size: 0.86rem;
}
@media (max-width: 900px) {
  .testi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .testi-grid { grid-template-columns: 1fr; }
}

/* ---------- teens (seção adolescentes na Metodologia) ---------- */
.teens {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 40px;
}
.teens-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 40px;
  align-items: start;
}
.teens ul.checklist {
  list-style: none;
  display: grid;
  gap: 10px;
  margin-top: 20px;
}
.teens ul.checklist li {
  padding-left: 26px;
  position: relative;
  font-size: 0.94rem;
  color: var(--slate);
}
.teens ul.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 800;
}
.teens .quote {
  background: var(--bg-soft);
  border-radius: 12px;
  padding: 22px;
  font-size: 0.92rem;
  color: var(--ink);
}
.teens .quote .who {
  margin-top: 10px;
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--slate);
}
@media (max-width: 760px) {
  .teens { padding: 28px; }
  .teens-grid { grid-template-columns: 1fr; }
}

/* ---------- faq ---------- */
.faq-group { margin-bottom: 36px; }
.faq-group:last-child { margin-bottom: 0; }
.faq-group h3 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 4px;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 22px 4px;
  font-family: 'Montserrat', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
}
.faq-q .icon { font-size: 1.3rem; color: var(--pink); transition: transform 0.2s ease; flex-shrink: 0; }
.faq-item[open] .faq-q .icon { transform: rotate(45deg); }
.faq-a {
  padding: 0 4px 22px;
  color: var(--slate);
  font-size: 0.95rem;
  max-width: 62ch;
}
.faq-a a { color: var(--pink); font-weight: 700; }

/* ---------- CTA final (banda reutilizável) ---------- */
.cta-band {
  background: var(--bg-soft);
  text-align: center;
  padding: 64px 0;
}
.cta-band h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin-bottom: 10px; }
.cta-band p { color: var(--slate); margin-bottom: 26px; }

/* ---------- contato ---------- */
.contato { background: var(--card); border-top: 1px solid var(--line); }
.contato-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}
.nap dt {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pink);
  margin-top: 20px;
  margin-bottom: 4px;
  font-weight: 700;
}
.nap dt:first-child { margin-top: 0; }
.nap dd { font-size: 1rem; }
.map-frame {
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  min-height: 280px;
}
.map-frame iframe { width: 100%; height: 100%; min-height: 280px; border: 0; display: block; }
.map-facade {
  width: 100%;
  height: 100%;
  min-height: 280px;
  border: none;
  background: var(--bg-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--blue);
  transition: background 0.2s ease;
  padding: 24px;
  text-align: center;
}
.map-facade:hover { background: #E9ECEF; }
.map-facade-icon { font-size: 1.8rem; }
.map-facade-sub { font-weight: 500; font-size: 0.82rem; color: var(--slate); }

@media (max-width: 760px) {
  .contato-grid { grid-template-columns: 1fr; }
}

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 24px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.footer-brand strong { color: var(--blue); font-size: 1rem; }
.footer-brand p { font-size: 0.85rem; color: var(--slate); margin-top: 4px; }
.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.86rem;
  font-weight: 600;
}
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--pink); }
.footer-copy {
  text-align: center;
  font-size: 0.8rem;
  color: var(--slate);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}