:root {
 	--font-description-size: clamp(.7rem, 2.2vw, .9rem); 
    --font-autor-size: clamp(.6rem, 1.8vw, .8rem);
}  

/* Estilos para el link de regreso */
.go-back-link {
	color: var(--secondary-color);
	text-decoration: none;
	font-size: var(--font-abstract-size);
	font-weight: 400;
	display: flex;
	align-items: center;
	gap: 0.8rem;
	transition: color 0.2s;
}
.go-back-link i {
	transition: transform 0.3s;
}
.go-back-link:hover {
	color: var(--secondary-color);
}
.go-back-link:hover i {
	transform: translateX(-6px);
}

#course-container {
	width: 100%;
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.go-back {
	margin-bottom: 0.7rem;
	width: fit-content;
	min-width: 0;
}
.go-back-link:hover {
	color: var(--secondary-color);
}

.course-banner {
	position: relative;
	width: 100%;
	min-height: 150px;
	display: flex;
	align-items: center;
	border-radius: 5px;
	overflow: hidden;
}
.course-banner img {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	z-index: 1;
	filter: brightness(0.5) blur(2px) contrast(1.1) saturate(1.2);
	transform: scale(1.08) skewX(-3deg);
}
.course-banner-content {
	position: relative;
	z-index: 2;
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	text-align: left;
	justify-content: flex-start;
    padding-left: 3rem;
}
.course-banner h1 {
	color: #fff;
	font-size: var(--font-title-size);
	font-weight: 700;
	margin-bottom: 0.1rem;
	text-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
.course-banner p {
	color: #fff;
	font-size: var(--font-autor-size);
	font-weight: 300;
	margin-bottom: 0;
	text-shadow: 0 2px 8px rgba(0,0,0,0.18);
}


.course-description {
	background: var(--background);
	padding: .5rem 0rem;
}
.course-description p {
	font-size: var(--font-description-size);
	color: var(--text);
	margin-bottom: 1.1rem;
}
.extra-info {
	display: flex;
	gap: 2rem;
    font-size: var(--font-description-size);
}
.extra-info span {
	padding: 0.3rem 0.8rem;
	border-radius: 6px;
}

.extra-info i {
    margin-right: 0.3rem;
    color: var(--secondary-color);
}

.level{
    background-color: #00A158;
    color: white;
    padding: 1% 5%;
    border-radius: 5px;
    font-size: .9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
}

.course-content {
	background: #eee;
	padding: 1.5rem 2rem;
	border: 1px solid #ccc;
	border-radius: 10px;
}
.course-content h2 {
	font-size: var(--font-subtitle-size);
    color: var(--text-color);
    font-weight: 500;
	margin-bottom: 1rem;
}
.class-list {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}
.class-list li {
	background: var(--card-color);
	border-radius: 8px;
	padding: 0.8rem 1rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.class-list a {
	color: var(--text);
	text-decoration: none;
	font-weight: 500;
	display: flex;
	align-items: center;
	gap: 0.7rem;
	transition: color 0.2s;
}
.class-list a:hover {
	color: var(--primary-color);
}
.video-duration {
	font-size: 0.9rem;
	color: var(--secondary-text);
	background: var(--background);
	border-radius: 5px;
	padding: 0.2rem 0.7rem;
	margin-left: 1rem;
}

.lessons-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.lessons-table th, .lessons-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
    width: 50%;
}

.lessons-table th {
    background-color: var(--card-color);
    font-weight: 600;
    color: var(--secondary-text);
}

.lessons-table td{
	position: relative;
}

.lessons-table td a {
    color: var(--text);
	display: block;
	max-width: 80%;
	text-wrap: wrap;
    text-decoration: none;
    font-weight: 500;
    align-items: center;
    gap: 0.7rem;
    transition: color 0.2s;
}

.lessons-table td a:hover {
    color: var(--primary-color);
}

.lessons-table .duration {
    font-size: 0.8rem;
    color: var(--secondary-text);
	right: 20px;
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	padding: 0.2rem 0.7rem;
}


@media (max-width: 1000px) {
	#course-container {
		padding: 1.2rem 2vw;
		padding-bottom: 40vh;
		max-width: 99vw;

	}
	.course-banner {
		gap: 0.7rem;
	}

	.lessons-table tr,
	.lessons-table td {
		display: block;
		width: 100%;
	}

	.lessons-table tr {
		margin-bottom: 1rem; 
        border-bottom: 2px solid var(--border-color);
	}
    
    .lessons-table td a {
        display: inline-flex;
		max-width: 70%; 
    }
    .lessons-table td:empty {
        display: none;
    }
    .lessons-table td {
        border: none;
        padding-left: 0;
        padding-right: 0;
    }

	.lessons-table .duration {
		padding-right: 0;
	}
}