/* Tema minimalista e moderno com efeitos de rolagem e relevos */
:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #0FA3B1; /* teal */
  --primary-contrast: #072a2e;
  --shadow: 0 10px 30px rgba(0,0,0,0.08);
  --neumo-light: rgba(255,255,255,0.8);
  --neumo-dark: rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e7eb;
  z-index: 1000;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}
.nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 18px;
  padding: 10px 12px;
  border-radius: 10px;
}
.nav a:hover {
  background: var(--surface);
  box-shadow: -6px -6px 12px var(--neumo-light), 6px 6px 12px var(--neumo-dark);
}

.hero {
  padding: 80px 0 40px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 42px);
  margin: 0 0 12px;
}
.hero p { color: var(--muted); max-width: 820px; }
.hero-cta { display: flex; gap: 12px; margin-top: 20px; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 12px 18px;
  border-radius: 14px;
  text-decoration: none;
  box-shadow: -6px -6px 12px var(--neumo-light), 6px 6px 12px var(--neumo-dark);
}
.btn:hover { filter: brightness(1.06); }
.btn-outline {
  background: var(--surface);
  color: var(--primary-contrast);
  border: 1px solid #d1d5db;
}

.features { padding: 40px 0; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  background: var(--surface);
  padding: 20px;
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.card h3 { margin-top: 0; }
.card p { color: var(--muted); }

.about, .cta { padding: 40px 0; }
.cta .btn { margin-top: 8px; }

.site-footer {
  background: #ffffff;
  border-top: 1px solid #e5e7eb;
  margin-top: 60px;
}
.site-footer .container { padding: 24px 0; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.legal { color: var(--muted); font-size: 14px; margin-top: 8px; }

/* Banner de cookies */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(6px);
  border-top: 1px solid #e5e7eb;
  padding: 14px 0;
  display: none;
  z-index: 1000;
}
.cookie-banner .container { display: flex; align-items: center; gap: 12px; }
.cookie-banner p { margin: 0; color: var(--muted); }

/* Efeito de revelação ao rolar */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Páginas internas */
.page-header {
  padding: 40px 0 10px;
}
.page-header h1 { margin: 0; }
.page-content { padding: 20px 0 40px; }
.page-content h2 { margin-top: 28px; }
.page-content p, .page-content li { color: var(--muted); }
.page-content ul { padding-left: 20px; }

/* Contato */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.contact-card { background: var(--surface); padding: 20px; border-radius: 16px; box-shadow: var(--shadow); }
.contact-card a { color: var(--primary-contrast); text-decoration: none; }
.contact-card a:hover { text-decoration: underline; }

/* Acessibilidade */
a:focus, button:focus { outline: 2px dashed var(--primary); outline-offset: 2px; }