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

body {
  font-family: 'Poppins', sans-serif;
  background: #111;
  color: #fff;
  line-height: 1.6;
}

header {
  background: #333;
  padding: 20px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  position: relative;
  z-index: 100;
}

.container-header {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.logo {
  font-size: 2em;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
}

.highlight {
  color: #00ff88;
  text-shadow: 0 0 10px rgba(0,255,136,0.5);
}

/* Menu categorias */
.nav-menu ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap; /* 🔥 permite quebrar linha */
  justify-content: center; /* centraliza */
  gap: 10px; /* espaço entre os itens */
  margin: 0;
  padding: 0;
}

.nav-menu ul li {
  flex: 0 1 auto; /* mantém largura mínima e permite quebra */
}

.nav-menu ul li a {
  display: block;
  padding: 10px 16px;
  border-radius: 8px;
  background: #222;
  color: #fff;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  white-space: nowrap; /* evita quebra dentro do botão */
}


.search-bar {
  margin: 40px auto;
  display: flex;
  justify-content: center;
  max-width: 800px;
}

.search-bar input {
  padding: 15px 20px;
  flex: 1;
  border: none;
  border-radius: 30px 0 0 30px;
  outline: none;
  font-size: 1.1em;
  background: rgba(255,255,255,0.1);
  color: #fff;
}

.search-bar button {
  padding: 15px 30px;
  border: none;
  background: linear-gradient(90deg,#00ff88,#00b3ff);
  color: #111;
  font-weight: bold;
  border-radius: 0 30px 30px 0;
  cursor: pointer;
  font-size: 1.1em;
  transition: all 0.3s;
}

.search-bar button:hover {
  background: linear-gradient(90deg,#00b3ff,#00ff88);
}

.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
  gap: 30px;
  margin: 40px auto;
  max-width: 1200px;
  padding: 0 20px;
  min-height: 300px;
}

.channel-card {
  background: linear-gradient(145deg,#1e1e1e,#2a2a2a);
  padding: 20px;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border 0.3s;
  text-decoration: none; /* garante que nada dentro do card herde link */
  color: inherit;       /* títulos herdam cor branca */
}

.channel-card.selected {
  border: 2px solid #fff;
}

.channel-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 15px;
}

.channel-card h3 {
  margin: 10px 0;
  font-size: 1.3em;
  font-weight: 600;
  pointer-events: none; /* evita que o título capture clique */
}

.channel-card p {
  font-size: .9em;
  color: #aaa;
  background: rgba(0,0,0,0.3);
  padding: 5px 10px;
  border-radius: 20px;
  display: inline-block;
}

footer {
  background: linear-gradient(135deg, #4a00e0, #8e2de2);
  text-align: center;
  padding: 30px;
  margin-top: 60px;
  font-size: 1em;
}

footer p {
  margin-bottom: 20px;
}

#back-top {
  padding: 12px 25px;
  border: none;
  background: linear-gradient(90deg,#00ff88,#00b3ff);
  color: #111;
  font-weight: bold;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

#back-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,255,136,0.4);
}

/* Mobile */
@media(max-width:768px) {
  .logo { font-size:1.5em; }
  nav ul { gap:10px; margin-top:15px; }
  nav ul li a { padding:10px 15px; font-size:0.9em; }
  .channels-grid { grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:20px; }
}

/* Menu burger */
.menu-toggle { display:none; background:transparent; border:none; width:40px; height:30px; position:relative; cursor:pointer; z-index:1000; }
.burger-line { display:block; width:100%; height:4px; background:#fff; border-radius:2px; position:absolute; left:0; transition:all 0.3s ease; }
.burger-line:nth-child(1){top:0;}
.burger-line:nth-child(2){top:50%; transform:translateY(-50%);}
.burger-line:nth-child(3){bottom:0;}
.menu-toggle.active .burger-line:nth-child(1){top:50%; transform:translateY(-50%) rotate(45deg);}
.menu-toggle.active .burger-line:nth-child(2){opacity:0;}
.menu-toggle.active .burger-line:nth-child(3){bottom:50%; transform:translateY(50%) rotate(-45deg);}
.nav-menu {transition: transform 0.3s ease;}
@media(max-width:768px){
  .menu-toggle{display:block;}
  .nav-menu{position:fixed; top:0; right:-300px; width:300px; height:100vh; background:#333; padding:80px 20px 20px; box-shadow:-5px 0 15px rgba(0,0,0,0.3); z-index:999; display:flex; flex-direction:column;}
  .nav-menu.active{transform:translateX(-300px);}
  .nav-menu ul{flex-direction:column; gap:15px;}
  .nav-menu ul li a{width:100%; text-align:left; border-radius:5px; padding:15px 20px;}
}
</style>