/* =======================
   Design tokens
======================= */
:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-press: #1d4ed8;
  --ring: 2px solid rgba(37, 99, 235, 0.4);

  --radius: 12px;
  --shadow: 0 6px 20px rgba(0, 0, 0, 0.08);

  /* Escalas fluidas */
  --step--1: clamp(0.85rem, 0.8rem + 0.2vw, 0.95rem);
  --step-0: clamp(1rem, 0.96rem + 0.35vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.1rem + 0.8vw, 1.5rem);
  --step-2: clamp(1.5rem, 1.3rem + 1.2vw, 1.875rem);
  --step-3: clamp(2rem, 1.7rem + 2vw, 2.5rem);

  --space-1: clamp(8px, 0.8vw, 12px);
  --space-2: clamp(12px, 1.2vw, 16px);
  --space-3: clamp(16px, 1.8vw, 24px);
  --space-4: clamp(24px, 2.4vw, 36px);
  --space-5: clamp(32px, 3.2vw, 48px);
}

/* Dark mode automático */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --surface: #0f172a;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --primary: #60a5fa;
    --primary-press: #3b82f6;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --ring: 2px solid rgba(96, 165, 250, 0.4);
  }
}

/* Resets mínimos e base */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Ubuntu,
    Cantarell,
    Noto Sans,
    Arial,
    "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(
        1200px 800px at 10% -10%,
        rgba(37, 99, 235, 0.06),
        transparent 40%
      )
      no-repeat,
    var(--bg);
  line-height: 1.6;
  font-size: var(--step-0);
  display: flex;
  flex-direction: column;
}

/* Acessibilidade e movimento */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Layout utilitário */
.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: saturate(1.2) blur(8px);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--muted) 20%, transparent);
  z-index: 10;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
}
.brand {
  font-size: var(--step-1);
  margin: 0;
}
.nav {
  display: flex;
  gap: var(--space-2);
}
.nav__link {
  text-decoration: none;
  color: var(--text);
  opacity: 0.8;
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
}
.nav__link:hover,
.nav__link:focus-visible {
  opacity: 1;
  outline: none;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 20%, transparent);
}

/* =======================
   Destaque (antes hero)
======================= */
.destaque {
  display: grid;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-5) 0 var(--space-4);
}
@media (min-width: 760px) {
  .destaque {
    grid-template-columns: 1.2fr 1fr;
  }
}
.destaque__content h2 {
  font-size: var(--step-3);
  line-height: 1.1;
  margin: 0 0 var(--space-2);
}
.destaque__content p {
  color: var(--muted);
  margin: 0 0 var(--space-3);
  max-width: 60ch;
}
.destaque__media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
}

/* Botões e links */
.btn {
  display: inline-block;
  padding: 0.8rem 1.1rem;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border: 0;
  border-radius: 10px;
  box-shadow: var(--shadow);
  transform: translateZ(0);
  transition:
    transform 150ms ease,
    background 150ms ease;
}
.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
  background: var(--primary-press);
  outline: none;
  box-shadow:
    0 0 0 0 var(--ring),
    var(--shadow);
}
.btn:active {
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid color-mix(in srgb, var(--primary) 70%, var(--surface));
}

/* Cards em grid fluido 1–2–3 colunas */
.grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  margin: var(--space-4) 0;
}
@media (min-width: 640px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--muted) 18%, transparent);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow);
  display: grid;
  gap: var(--space-2);
}
.card h3 {
  margin: 0;
  font-size: var(--step-1);
}
.card p {
  margin: 0;
  color: var(--muted);
}
.card__img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
}
.link {
  text-decoration: none;
  color: var(--primary);
  font-weight: 600;
  width: fit-content;
}
.link:hover,
.link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 25%, transparent);
  border-radius: 6px;
}

/* Bloco CTA */
.cta {
  text-align: center;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--primary) 10%, transparent),
      transparent 60%
    ),
    var(--surface);
  border: 1px solid color-mix(in srgb, var(--muted) 18%, transparent);
  border-radius: calc(var(--radius) + 4px);
  padding: var(--space-4);
  margin: var(--space-5) 0;
  box-shadow: var(--shadow);
}
.cta h2 {
  font-size: var(--step-2);
  margin: 0 0 var(--space-2);
}
.cta p {
  margin: 0 0 var(--space-3);
  color: var(--muted);
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid color-mix(in srgb, var(--muted) 20%, transparent);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  padding: var(--space-3) 0;
}
.site-footer small {
  color: var(--muted);
}

/* Parallax sections */
.parallax {
  min-height: 38vh;
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: saturate(1.05) contrast(1.02);
}
.parallax--top {
  background-image: url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?q=80&w=1920&auto=format&fit=crop");
}
.parallax--bottom {
  background-image: url("https://images.unsplash.com/photo-1519389950473-47ba0277781c?q=80&w=1920&auto=format&fit=crop");
}
@media (prefers-reduced-motion: reduce) {
  .parallax {
    background-attachment: scroll;
  }
}

/* Estados de foco universais */
:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 40%, transparent);
  border-radius: 6px;
}