:root {
  --blue: #2f84c6;
  --blue-dark: #1c5a8c;
  --navy: #143b5c;
  --green: #1f9d57;
  --red: #d83a3a;
  --amber: #e08a1e;
  --cream: #eef5fb;
  --ink: #223040;
  --muted: #5d6b7a;
  --maxw: 1120px;
  --radius: 14px;
  --shadow: 0 10px 28px rgba(28, 90, 140, 0.14);
  --font: "Segoe UI", Tahoma, Geneva, Verdana, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); color: var(--ink); line-height: 1.65; background: #fff; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

h1, h2, h3 { line-height: 1.2; color: var(--navy); }
.eyebrow { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.78rem; font-weight: 800; color: var(--blue); margin: 0 0 12px; }
.eyebrow-center { text-align: center; }

.btn { display: inline-block; background: var(--blue); color: #fff; text-decoration: none; font-weight: 700; padding: 14px 32px; border-radius: 999px; box-shadow: 0 6px 16px rgba(47,132,198,0.35); transition: transform .15s, background .2s; }
.btn:hover { background: var(--blue-dark); transform: translateY(-2px); }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: #fff; box-shadow: 0 2px 10px rgba(28,90,140,0.08); }
.header-inner { display: flex; align-items: center; gap: 16px; min-height: 78px; }
.brand { z-index: 60; } .brand img { height: 58px; width: auto; }
.main-navigation { margin-left: auto; }
.primary-nav { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; }
.primary-nav a { display: block; padding: 10px 16px; color: var(--navy); text-decoration: none; font-weight: 600; border-radius: 8px; transition: background .2s; }
.primary-nav a:hover, .primary-nav a:focus { background: var(--cream); }
.nav-toggle { display: none; align-items: center; gap: 8px; margin-left: auto; z-index: 60; padding: 10px 15px; background: var(--blue); color: #fff; border: 0; border-radius: 8px; font: inherit; font-weight: 700; cursor: pointer; }
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after { display: block; width: 20px; height: 2px; background: #fff; position: relative; }
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bars::before { top: -6px; } .nav-toggle-bars::after { top: 6px; }

/* hero */
.hero { padding: 76px 0; background: linear-gradient(135deg, var(--blue), var(--blue-dark)); color: #fff; text-align: center; }
.hero .eyebrow { color: #cde6f7; }
.hero h1 { color: #fff; margin: 0 auto 18px; font-size: clamp(2.4rem, 6vw, 4rem); }
.hero-sub { margin: 0 auto 30px; max-width: 680px; font-size: 1.18rem; opacity: 0.96; }

/* checagens */
.checagens { padding: 72px 0; }
.checagens h2 { text-align: center; margin: 0 auto 44px; font-size: clamp(1.7rem, 3.6vw, 2.5rem); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card-grid > * { min-width: 0; }
.check-card { background: #fff; border: 1px solid #e2ecf4; border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px; display: flex; flex-direction: column; gap: 12px; transition: transform .15s; }
.check-card:hover { transform: translateY(-4px); }
.badge { align-self: flex-start; text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.78rem; font-weight: 800; color: #fff; padding: 5px 14px; border-radius: 999px; }
.badge--falso { background: var(--red); }
.badge--fake { background: #b02a2a; }
.badge--fato { background: var(--green); }
.badge--info { background: var(--blue); }
.check-card h3 { margin: 0; font-size: 1.15rem; }
.check-card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* sobre */
.sobre { padding: 72px 0; background: var(--cream); }
.sobre h2 { margin: 0 0 18px; font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
.sobre p { max-width: 820px; margin: 0; font-size: 1.08rem; color: #37485a; }

/* sugestao */
.sugestao { padding: 72px 0; text-align: center; background: var(--navy); color: #fff; }
.sugestao h2 { color: #fff; margin: 0 auto 16px; font-size: clamp(1.6rem, 3.4vw, 2.3rem); max-width: 720px; }
.sugestao p { max-width: 640px; margin: 0 auto; opacity: 0.92; font-size: 1.1rem; }

/* footer */
.site-footer { background: #0f2c45; color: #b9cada; padding: 40px 0 30px; text-align: center; }
.site-footer img { height: 56px; width: auto; margin: 0 auto 18px; background: #fff; padding: 8px 14px; border-radius: 8px; }
.copyright { font-size: 0.85rem; opacity: 0.8; margin: 0; }

/* responsive */
@media (max-width: 880px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) {
  .nav-toggle { display: inline-flex; }
  .header-inner { position: relative; }
  .brand img { height: 48px; }
  .main-navigation { position: absolute; top: 100%; left: 0; right: 0; background: #fff; box-shadow: 0 10px 20px rgba(0,0,0,0.12); display: none; }
  .main-navigation.is-open { display: block; }
  .primary-nav { flex-direction: column; gap: 0; padding: 6px; }
  .card-grid { grid-template-columns: 1fr; }
}