/* Rodovias Pedagiadas — estilos globais */
:root {
  --azul-asfalto: #1e3a5f;
  --azul-ceu: #3b6fa8;
  --verde-faixa: #2d6a4f;
  --amarelo-sinal: #f4c430;
  --ambre: #8b6914;
  --fundo: #f5f7fa;
  --branco: #ffffff;
  --texto: #2c3e50;
  --texto-mudo: #5a6c7d;
  --borda: #dde3ea;
  --link: #2563eb;
  --erro: #c44536;
  --sombra: 0 4px 24px rgba(30, 58, 95, 0.08);
  --raio: 12px;
  --max: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--texto);
  background: var(--fundo);
}

h1,
h2,
h3 {
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.25;
  color: var(--azul-asfalto);
}

h1 {
  font-size: clamp(1.85rem, 4vw, 2.5rem);
}

h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  margin-top: 2rem;
}

h3 {
  font-size: 1.15rem;
  margin-top: 1.25rem;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--azul-asfalto);
}

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

/* Linhas de estrada decorativas */
.road-stripes {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.35;
  background-image: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 48px,
    var(--borda) 48px,
    var(--borda) 52px
  );
  background-size: 200% 100%;
  animation: stripes-drift 80s linear infinite;
}

@keyframes stripes-drift {
  to {
    background-position: 200% 0;
  }
}

.site-header {
  background: var(--azul-asfalto);
  color: var(--branco);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--sombra);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--branco);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--amarelo-sinal);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: var(--branco);
  padding: 0.4rem 0.65rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

.nav-main ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  align-items: center;
}

.nav-main a {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.35rem 0;
}

.nav-main a:hover,
.nav-main a[aria-current="page"] {
  color: var(--amarelo-sinal);
  text-decoration: none;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.hero {
  background: linear-gradient(135deg, var(--azul-asfalto) 0%, var(--azul-ceu) 100%);
  color: var(--branco);
  border-radius: var(--raio);
  padding: 2.5rem 1.75rem;
  margin-bottom: 2.5rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--amarelo-sinal) 0,
    var(--amarelo-sinal) 24px,
    transparent 24px,
    transparent 40px
  );
  opacity: 0.9;
}

.hero h1 {
  color: var(--branco);
  margin: 0 0 0.75rem;
}

.hero p {
  margin: 0 0 1.5rem;
  font-size: 1.125rem;
  opacity: 0.95;
  max-width: 36ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-intro {
  margin-bottom: 2rem;
}

.page-intro p {
  color: var(--texto-mudo);
  max-width: 65ch;
}

.btn {
  display: inline-block;
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: 10px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--amarelo-sinal);
  color: var(--ambre);
  border-color: var(--amarelo-sinal);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(244, 196, 48, 0.45);
  color: var(--azul-asfalto);
}

.btn-outline-light {
  background: transparent;
  color: var(--branco);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--branco);
}

.btn-secondary {
  background: var(--verde-faixa);
  color: var(--branco);
  border-color: var(--verde-faixa);
}

.btn-secondary:hover {
  box-shadow: 0 6px 20px rgba(45, 106, 79, 0.35);
  color: var(--branco);
}

.btn-ghost {
  background: var(--branco);
  color: var(--azul-asfalto);
  border-color: var(--borda);
}

.btn-ghost:hover {
  border-color: var(--azul-ceu);
  color: var(--azul-ceu);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.card {
  background: var(--branco);
  border-radius: var(--raio);
  padding: 1.35rem;
  box-shadow: var(--sombra);
  border: 1px solid var(--borda);
}

.card h3 {
  margin-top: 0;
  color: var(--azul-asfalto);
}

.card p {
  margin: 0.5rem 0 0;
  color: var(--texto-mudo);
  font-size: 0.98rem;
}

.card .btn {
  margin-top: 1rem;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--fundo);
  color: var(--azul-ceu);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.banner-teachers {
  background: linear-gradient(90deg, var(--verde-faixa), #3d8b6a);
  color: var(--branco);
  border-radius: var(--raio);
  padding: 1.5rem 1.5rem;
  margin: 2.5rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.banner-teachers h2 {
  color: var(--branco);
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
}

.banner-teachers p {
  margin: 0;
  opacity: 0.95;
  max-width: 42ch;
}

.faq-item {
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  margin-bottom: 0.75rem;
  background: var(--branco);
  overflow: hidden;
}

.faq-item summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  color: var(--azul-ceu);
  font-size: 1.25rem;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item .faq-body {
  padding: 0 1.25rem 1.25rem;
  color: var(--texto-mudo);
  font-size: 0.98rem;
}

.checklist label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.5rem 0;
  cursor: pointer;
  border-bottom: 1px solid var(--borda);
}

.checklist label:last-child {
  border-bottom: none;
}

.checklist input {
  margin-top: 0.35rem;
  accent-color: var(--verde-faixa);
}

.quiz-box {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.quiz-question {
  font-weight: 600;
  margin-bottom: 1rem;
}

.quiz-options label {
  display: block;
  padding: 0.6rem 0.85rem;
  margin-bottom: 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--borda);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.quiz-options label:hover {
  border-color: var(--azul-ceu);
  background: var(--fundo);
}

.quiz-options input {
  margin-right: 0.5rem;
  accent-color: var(--azul-asfalto);
}

.quiz-msg {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 8px;
  font-weight: 600;
  display: none;
}

.quiz-msg.ok {
  display: block;
  background: #e8f5e9;
  color: #1b4332;
}

.quiz-msg.erro {
  display: block;
  background: #ffebee;
  color: var(--erro);
}

form.contact-form {
  max-width: 520px;
  background: var(--branco);
  padding: 1.5rem;
  border-radius: var(--raio);
  border: 1px solid var(--borda);
  box-shadow: var(--sombra);
}

form.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--azul-asfalto);
}

form.contact-form input,
form.contact-form select,
form.contact-form textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  margin-bottom: 1rem;
  border: 1px solid var(--borda);
  border-radius: 8px;
  font: inherit;
}

form.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.form-msg {
  padding: 1rem;
  border-radius: 8px;
  margin-top: 1rem;
  display: none;
}

.form-msg.show {
  display: block;
}

.form-msg.success {
  background: #e8f5e9;
  color: #1b5e20;
}

.article-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-list li {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--borda);
}

.article-list a {
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--azul-asfalto);
  text-decoration: none;
}

.article-list a:hover {
  color: var(--azul-ceu);
}

.article-list .meta {
  font-size: 0.875rem;
  color: var(--texto-mudo);
  margin-top: 0.35rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.steps li {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.25rem;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background: var(--amarelo-sinal);
  color: var(--ambre);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  font-weight: 800;
  font-size: 0.9rem;
}

.site-footer {
  background: var(--azul-asfalto);
  color: rgba(255, 255, 255, 0.85);
  padding: 2rem 1.25rem;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: space-between;
  align-items: flex-start;
}

.site-footer a {
  color: var(--amarelo-sinal);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer .small {
  font-size: 0.875rem;
  max-width: 40ch;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

.disclaimer {
  font-size: 0.875rem;
  color: var(--texto-mudo);
  border-left: 4px solid var(--amarelo-sinal);
  padding: 0.75rem 1rem;
  background: var(--branco);
  border-radius: 0 var(--raio) var(--raio) 0;
  margin: 1.5rem 0;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-main {
    width: 100%;
    display: none;
    padding-top: 0.75rem;
  }

  .nav-main.is-open {
    display: block;
  }

  .nav-main ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .nav-main {
    order: 3;
    flex-basis: 100%;
  }
}