:root {
  --green: #006400;
  --yellow: #FFD700;
  --navy: #0A3161;
  --light: #f8f9fa;
  --gray: #f1f1f1;
}

* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: 'Inter', sans-serif;
  background: white;
  color: #333;
  line-height: 1.7;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }

/* HERO: Flag Transition */
.hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
}

.flag-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
  transition: opacity 2s ease-in-out;
}

.flag-bg.brazil {
  background: linear-gradient(135deg, #009C3B 0%, #009C3B 35%, #FFD700 35%, #FFD700 65%, #009C3B 65%);
  opacity: 1;
}

.flag-bg.usa {
  background: 
    linear-gradient(transparent 50%, #B22234 50%),
    repeating-linear-gradient(90deg, #B22234 0, #B22234 7.69%, white 7.69%, white 15.38%) top/100% 50%,
    #0A3161;
  opacity: 0;
}

.hero-content {
  z-index: 2;
  max-width: 800px;
  padding: 2rem;
}

.logo-script {
  font-family: 'Dancing Script', cursive;
  font-size: 4.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 0 4px 10px rgba(0,0,0,0.4);
}

.tagline {
  font-size: 1.4rem;
  margin: 1rem 0;
  font-weight: 600;
}

.flag-icon::before { content: "Brazil"; margin: 0 8px; }

.cta-btn {
  display: inline-block;
  background: var(--yellow);
  color: var(--green);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 700;
  text-decoration: none;
  margin-top: 1.5rem;
  box-shadow: 0 6px 20px rgba(255,215,0,0.4);
  transition: all 0.3s ease;
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255,215,0,0.5);
}

/* SECTIONS */
.intro, .featured { padding: 5rem 0; }
.intro { background: var(--light); text-align: center; }
.intro h2 { font-size: 2.5rem; margin-bottom: 1rem; color: var(--green); }
.intro p { font-size: 1.2rem; max-width: 700px; margin: 0 auto 1rem; }

.featured h2 { text-align: center; font-size: 2.5rem; margin-bottom: 3rem; color: var(--navy); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
  color: inherit;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card h3 {
  font-size: 1.4rem;
  margin: 1rem 0 0.5rem;
  color: var(--green);
  text-align: center;
}

.card p {
  text-align: center;
  color: #666;
  padding: 0 1rem 1.5rem;
}

/* FOOTER */
footer {
  background: var(--navy);
  color: white;
  text-align: center;
  padding: 3rem 0;
}

footer p { margin-bottom: 1rem; font-size: 0.9rem; }
.social a { color: white; margin: 0 12px; font-size: 1.2rem; }

/* MOBILE */
@media (max-width: 768px) {
  .hero h1 { font-size: 3rem; }
  .intro, .featured { padding: 3rem 0; }
  .grid { grid-template-columns: 1fr; }
}