:root {
  --primary: #003366;
  --secondary: #ffcc00;
  --dark: #001933;
  --light: #f4f7fa;
  --white: #ffffff;
  --text: #333;
  --glass: rgba(255,255,255,0.08);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  background: var(--light);
  color: var(--text);
  overflow-x: hidden;
}

.loading-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #001933, #003366);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: 0.6s;
}

.loader-content {
  text-align: center;
  color: white;
}

.loader-logo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: auto;
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

.loader-logo i {
  font-size: 3rem;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #001933, #003366);
  position: relative;
  color: white;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
  radial-gradient(circle at top right, rgba(255,204,0,0.15), transparent 30%),
  radial-gradient(circle at bottom left, rgba(255,255,255,0.08), transparent 25%);
}

.navbar {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 8%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
}

.logo i {
  color: var(--secondary);
}

.install-btn {
  border: none;
  padding: 14px 22px;
  border-radius: 12px;
  background: rgba(255,255,255,0.12);
  color: white;
  backdrop-filter: blur(10px);
  cursor: pointer;
  font-weight: 600;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: auto;
  text-align: center;
  padding: 80px 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 50px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  margin-bottom: 30px;
}

.hero h1 {
  font-size: 4rem;
  line-height: 1.2;
  margin-bottom: 25px;
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 700px;
  margin: auto;
  margin-bottom: 40px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 18px 32px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  transition: 0.3s;
}

.btn-primary {
  background: var(--secondary);
  color: var(--dark);
}

.btn-primary:hover {
  transform: translateY(-5px);
}

.btn-secondary {
  background: rgba(255,255,255,0.12);
  color: white;
  border: none;
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.hero-stats {
  margin-top: 70px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.stat-card {
  padding: 30px;
  background: rgba(255,255,255,0.08);
  border-radius: 20px;
  backdrop-filter: blur(10px);
}

.stat-card h3 {
  font-size: 2rem;
  color: var(--secondary);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

.features {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.7rem;
  color: var(--primary);
  margin-bottom: 15px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-card {
  background: white;
  padding: 40px;
  border-radius: 24px;
  text-align: center;
  transition: 0.4s;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.feature-card:hover {
  transform: translateY(-10px);
}

.feature-icon {
  width: 90px;
  height: 90px;
  margin: auto;
  margin-bottom: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #003366, #001933);
  color: white;
  font-size: 2rem;
}

.progress-section {
  padding-bottom: 100px;
}

.progress-card {
  background: linear-gradient(135deg, #003366, #001933);
  border-radius: 30px;
  color: white;
  padding: 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
}

.progress-circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 10px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: bold;
}

.simulados-section {
  padding-bottom: 120px;
}

.search-box {
  max-width: 600px;
  margin: auto;
  margin-bottom: 50px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 18px 20px 18px 55px;
  border-radius: 18px;
  border: none;
  background: white;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  font-size: 1rem;
}

.search-box i {
  position: absolute;
  left: 20px;
  top: 20px;
  color: #777;
}

.simulados-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.simulado-card {
  background: white;
  border-radius: 24px;
  padding: 30px;
  transition: 0.4s;
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
  position: relative;
  overflow: hidden;
}

.simulado-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #003366, #ffcc00);
}

.simulado-card:hover {
  transform: translateY(-10px);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
}

.simulado-icon {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  background: linear-gradient(135deg, #003366, #001933);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.card-badge {
  background: rgba(0, 128, 0, 0.1);
  color: green;
  padding: 8px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
}

.simulado-card h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: #777;
  margin-bottom: 30px;
}

.btn-card {
  display: block;
  text-align: center;
  padding: 16px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: bold;
  background: linear-gradient(135deg, #003366, #001933);
  color: white;
}

.footer {
  background: #001933;
  color: white;
  padding: 60px 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}

.footer-whatsapp {
  padding: 18px 24px;
  border-radius: 14px;
  background: #25d366;
  color: white;
  text-decoration: none;
  font-weight: bold;
}

@media(max-width:768px){

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .navbar {
    flex-direction: column;
    gap: 20px;
  }

  .progress-card {
    text-align: center;
    justify-content: center;
  }

}