/* Estilo Netflix Customizado */
.course-card {
    transition: transform 0.3s ease;
    cursor: pointer;
}

.course-card:hover {
    transform: scale(1.05);
    z-index: 10;
}

.course-card img {
    object-fit: cover;
    height: 170px;
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #141414;
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Botões e Cores de Destaque */
.btn-danger {
    background-color: var(--netflix-red);
    border: none;
}

.btn-danger:hover {
    background-color: #f40612;
}

.btn-purple {
    background-color: white;
    color: black;
    border: none;
    font-weight: bold;
}

.btn-purple:hover {
    background-color: var(--netflix-red);
    color: white;
}

.btn-green {
    background-color: var(--primary-green);
    color: white;
    border: none;
}

.btn-green:hover {
    background-color: #146c43;
    color: white;
}

.text-purple { color: var(--primary-purple); }
.text-green { color: var(--primary-green); }
.bg-purple { background-color: var(--primary-purple); }
.bg-green { background-color: var(--primary-green); }

/* Estilo para Player de Vídeo */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    background: #000;
    border-radius: 8px;
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Proteção de vídeo */
.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100% - 40px); /* Deixa os controles do YT acessíveis se necessário, ou cubra tudo */
    z-index: 100;
    background: rgba(0,0,0,0);
    cursor: pointer;
}

.video-container {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Sidebar Estilo Streaming */
.sidebar {
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    width: 240px;
    background-color: #000;
    padding-top: 80px;
    z-index: 100;
}

.main-content {
    margin-left: 240px;
}

/* Animações */
.fade-in {
    animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}