/* =============================================
   Layers Design System — Tokens
   ============================================= */
:root {
  --color-primary-cyan-light: #e5f8f7;
  --color-primary-cyan: #00b8ad;
  --color-primary-cyan-dark: #00a69c;

  --color-link: #2f8af5;
  --color-secondary-blue: #15a4cc;
  --color-purple: #5451d6;

  --color-lead: #232b34;
  --color-gray-70: #748494;
  --color-gray-60: #a3b1bf;
  --color-gray-30: #e8ecef;
  --color-gray-40: #d7dee3;
  --color-gray-05: #f8fafb;
  --color-gray-10: #f4f6f8;
  --color-white: #ffffff;

  --radius: 8px;
  --radius-lg: 12px;
  --shadow-card: 0px 1px 6px rgba(46, 142, 255, 0.1);
  --shadow-elevated: 0 4px 14px 0 rgba(0, 0, 0, 0.08);
}

/* =============================================
   Reset
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Nunito', sans-serif;
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-lead);
  background-color: var(--color-gray-05);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* =============================================
   Header
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-30);
}
.site-header__inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header__logo { height: 32px; display: block; }
.site-header__nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.site-header__cta {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  border-radius: 6px;
  background-color: var(--color-primary-cyan);
  color: var(--color-white) !important;
  font-size: 14px;
  font-weight: 700;
  transition: background-color .2s linear;
}
.site-header__cta:hover {
  background-color: var(--color-primary-cyan-dark);
  color: var(--color-white) !important;
}

/* =============================================
   Super Guia banner (top, between header and main)
   ============================================= */
.superguia-banner {
  display: block;
  max-width: 1140px;
  margin: 24px auto 0;
  padding: 0 24px;
  text-decoration: none;
}
.superguia-banner img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease;
}
.superguia-banner:hover img {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}

/* =============================================
   Hub container & hero
   ============================================= */
.hub-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}
.hub-hero {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}
.hub-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background-color: var(--color-primary-cyan-light);
  color: var(--color-primary-cyan);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 20px;
}
.hub-hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-lead);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hub-lead {
  font-size: 21px;
  line-height: 1.6;
  color: var(--color-gray-70);
}
.hub-lead strong { color: var(--color-lead); font-weight: 700; }

/* =============================================
   Article cards grid
   ============================================= */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 80px;
}

.article-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-30);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevated);
  border-color: var(--color-primary-cyan-light);
}

.article-card__body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.article-card__tag {
  display: inline-block;
  align-self: flex-start;
  padding: 5px 12px;
  background-color: var(--color-gray-10);
  color: var(--color-gray-70);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.article-card__tag--featured {
  background-color: var(--color-primary-cyan-light);
  color: var(--color-primary-cyan-dark);
}

.article-card__title {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-lead);
  margin: 0;
}
.article-card__title a {
  color: inherit;
  transition: color .2s ease;
}
.article-card__title a:hover { color: var(--color-primary-cyan); }

.article-card__lead {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-70);
  flex: 1;
}

.article-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-gray-60);
  padding-top: 8px;
  border-top: 1px solid var(--color-gray-30);
  margin-top: auto;
}

/* Featured card spans the full row */
.article-card--featured {
  grid-column: 1 / -1;
  border-color: var(--color-primary-cyan-light);
  background: linear-gradient(135deg, #ffffff 0%, var(--color-primary-cyan-light) 100%);
}
.article-card--featured .article-card__body {
  padding: 40px;
  gap: 16px;
}
.article-card--featured .article-card__title {
  font-size: 32px;
  line-height: 1.2;
}
.article-card--featured .article-card__lead {
  font-size: 18px;
  max-width: 720px;
}

/* =============================================
   CTA section
   ============================================= */
.cta-section { margin-top: 64px; }
.cta-card-gradient {
  background: linear-gradient(135deg, var(--color-primary-cyan) 0%, var(--color-secondary-blue) 100%);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  color: var(--color-white);
}
.cta-card-gradient h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--color-white);
  line-height: 1.2;
}
.cta-card-gradient p {
  font-size: 17px;
  margin-bottom: 24px;
  opacity: 0.95;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.cta-button-white {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 28px;
  border-radius: 8px;
  background-color: var(--color-white);
  color: var(--color-primary-cyan-dark) !important;
  font-size: 15px;
  font-weight: 700;
  transition: transform .2s ease;
}
.cta-button-white:hover { transform: translateY(-2px); }

/* =============================================
   Footer
   ============================================= */
.site-footer {
  background-color: var(--color-lead);
  color: var(--color-gray-40);
  padding: 32px 0;
}
.site-footer__inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
}
.site-footer__logo { height: 24px; }
.site-footer a { color: var(--color-gray-40); }
.site-footer a:hover { color: var(--color-white); }

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 960px) {
  .hub-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hub-container { padding: 40px 20px 64px; }
  .hub-hero { margin-bottom: 40px; }
  .hub-hero h1 { font-size: 38px; }
  .hub-lead { font-size: 18px; }

  .hub-grid { grid-template-columns: 1fr; gap: 16px; }

  .article-card__body { padding: 24px; }
  .article-card--featured .article-card__body { padding: 28px; }
  .article-card--featured .article-card__title { font-size: 24px; }
  .article-card__title { font-size: 20px; }

  .cta-card-gradient { padding: 32px 24px; }
  .cta-card-gradient h2 { font-size: 24px; }

  .site-footer__inner { flex-direction: column; text-align: center; }
}