:root {
  --bg-color: #03001e;
  --bg-gradient: linear-gradient(135deg, #03001e 0%, #7303c0 50%, #ec38bc 100%);
  --space-dark: #0a0612;
  --primary: #00f2fe;
  --primary-glow: rgba(0, 242, 254, 0.4);
  --secondary: #fe00a5;
  --secondary-glow: rgba(254, 0, 165, 0.4);
  --success: #39ff14;
  --success-glow: rgba(57, 255, 20, 0.4);
  --warning: #ffb703;
  --white: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --font-interface: 'Arial', sans-serif;
  --font-game: 'Arial Black', 'Arial', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  font-family: var(--font-interface);
  background-color: var(--space-dark);
  color: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* Fundo espacial dinâmico */
#stars-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
  background: radial-gradient(circle at center, #180d30 0%, #05020c 100%);
}

.star {
  position: absolute;
  background-color: #fff;
  border-radius: 50%;
  animation: float-star linear infinite;
}

@keyframes float-star {
  from {
    transform: translateY(-10px);
  }
  to {
    transform: translateY(100vh);
  }
}

/* Container Principal do Portal */
.portal-container {
  position: relative;
  z-index: 10;
  width: 95vw;
  max-width: 1100px;
  min-height: 85vh;
  background: rgba(10, 5, 25, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 
              0 0 55px rgba(115, 3, 192, 0.15);
  display: flex;
  flex-direction: column;
  padding: 40px;
  justify-content: space-between;
  gap: 30px;
}

/* Cabeçalho */
.portal-header {
  text-align: center;
}

.portal-header h1 {
  font-family: var(--font-game);
  font-size: 3.8rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 4px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
  text-shadow: 0 0 35px rgba(0, 242, 254, 0.2);
  animation: glow-text 3s ease-in-out infinite alternate;
}

@keyframes glow-text {
  0% {
    filter: drop-shadow(0 0 2px var(--primary-glow));
  }
  100% {
    filter: drop-shadow(0 0 15px var(--secondary-glow));
  }
}

.subtitle {
  font-size: 1.25rem;
  color: #a5a1c0;
  font-weight: 300;
  letter-spacing: 1px;
}

/* Grid de Cards */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  width: 100%;
}

/* Estilo do Card individual */
.game-card {
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 35px 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: var(--white);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.game-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, transparent 100%);
  opacity: 1;
  transition: opacity 0.3s;
}

/* Efeito Glow Interno individual */
.card-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  filter: blur(40px);
  opacity: 0.15;
  transition: all 0.4s ease;
  z-index: 1;
}

/* Diferenciação de Cores por Jogo */
.card-typing .card-glow { background: var(--primary); }
.card-math .card-glow { background: var(--success); }
.card-logic .card-glow { background: var(--secondary); }
.card-hacker .card-glow { background: #00ff66; }

.card-typing:hover {
  border-color: var(--primary);
  box-shadow: 0 15px 35px var(--primary-glow);
  transform: translateY(-8px);
}

.card-math:hover {
  border-color: var(--success);
  box-shadow: 0 15px 35px var(--success-glow);
  transform: translateY(-8px);
}

.card-logic:hover {
  border-color: var(--secondary);
  box-shadow: 0 15px 35px var(--secondary-glow);
  transform: translateY(-8px);
}

.card-hacker:hover {
  border-color: #00ff66;
  box-shadow: 0 15px 35px rgba(0, 255, 102, 0.4);
  transform: translateY(-8px);
}

.card-badge-img {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 0 15px rgba(0, 255, 102, 0.4);
  border: 1px solid rgba(0, 255, 102, 0.5);
}

.btn-play-hacker {
  background: linear-gradient(135deg, #00ff66 0%, #00f2fe 100%) !important;
  color: #050e08 !important;
  font-weight: 800 !important;
}

.game-card:hover .card-glow {
  opacity: 0.35;
  transform: translate(-50%, -50%) scale(1.4);
}

/* Círculo do Ícone */
.icon-container {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 3.5rem;
  margin-bottom: 25px;
  position: relative;
  z-index: 2;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
  transition: all 0.4s ease;
}

/* Cores dos ícones baseadas na categoria */
.card-typing .icon-container { color: var(--primary); text-shadow: 0 0 10px var(--primary-glow); }
.card-math .icon-container { color: var(--success); text-shadow: 0 0 10px var(--success-glow); }
.card-logic .icon-container { color: var(--secondary); text-shadow: 0 0 10px var(--secondary-glow); }

.game-card:hover .icon-container {
  transform: scale(1.1) rotate(5deg);
}

/* Título do Jogo */
.game-card h2 {
  font-family: var(--font-game);
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 15px;
  position: relative;
  z-index: 2;
  letter-spacing: 1px;
}

/* Descrição do Jogo */
.description {
  font-size: 0.95rem;
  color: #a5a1c0;
  line-height: 1.5;
  margin-bottom: 30px;
  flex-grow: 1;
  position: relative;
  z-index: 2;
}

/* Botão Jogar dentro do Card */
.btn-play {
  width: 80%;
  padding: 12px 24px;
  font-family: var(--font-game);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  border-radius: 12px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 2;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
}

.card-typing .btn-play { background: linear-gradient(135deg, rgba(0,242,254,0.1) 0%, rgba(0,242,254,0.3) 100%); border-color: rgba(0,242,254,0.3); }
.card-math .btn-play { background: linear-gradient(135deg, rgba(57,255,20,0.1) 0%, rgba(57,255,20,0.3) 100%); border-color: rgba(57,255,20,0.3); }
.card-logic .btn-play { background: linear-gradient(135deg, rgba(254,0,165,0.1) 0%, rgba(254,0,165,0.3) 100%); border-color: rgba(254,0,165,0.3); }

.game-card:hover .btn-play {
  transform: translateY(-2px);
}

.card-typing:hover .btn-play { background: var(--primary); color: #000; border-color: var(--primary); box-shadow: 0 0 15px var(--primary-glow); }
.card-math:hover .btn-play { background: var(--success); color: #000; border-color: var(--success); box-shadow: 0 0 15px var(--success-glow); }
.card-logic:hover .btn-play { background: var(--secondary); color: #fff; border-color: var(--secondary); box-shadow: 0 0 15px var(--secondary-glow); }

/* Rodapé */
.portal-footer {
  text-align: center;
  font-size: 0.85rem;
  color: #656180;
  letter-spacing: 1px;
}

/* Responsividade */
@media (max-width: 900px) {
  .games-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .portal-container {
    padding: 30px 20px;
  }
  .portal-header h1 {
    font-size: 2.8rem;
  }
}