:root {
	--jeg-bg: #111827;
	--jeg-card: #ffffff;
	--jeg-accent: #dc2626;
	--jeg-text: #111827;
	--jeg-muted: #6b7280;
	--jeg-border: #e5e7eb;
	--jeg-soft: #f9fafb;
	--jeg-shadow: 0 18px 40px rgba(17, 24, 39, 0.12);
}

.jeg-course-shell,
.jeg-vocab-shell,
.jeg-quiz-shell {
	color: var(--jeg-text);
	font-family: inherit;
	margin: 0 auto;
	max-width: 1080px;
	padding: 1rem;
}

.jeg-course-hero {
	background: linear-gradient(135deg, rgba(17, 24, 39, 0.98), rgba(31, 41, 55, 0.95));
	border-radius: 24px;
	color: #fff;
	padding: 2rem;
	position: relative;
	overflow: hidden;
	box-shadow: var(--jeg-shadow);
	margin-bottom: 1.5rem;
}

.jeg-course-hero::after {
	content: "";
	position: absolute;
	right: -80px;
	top: -80px;
	width: 220px;
	height: 220px;
	background: radial-gradient(circle, rgba(220, 38, 38, 0.2) 0%, rgba(220, 38, 38, 0) 70%);
	border-radius: 50%;
}

.jeg-course-hero--compact {
	margin-bottom: 1.25rem;
	padding: 1.5rem 1.75rem;
}

.jeg-eyebrow {
	color: rgba(255, 255, 255, 0.72);
	font-size: 0.82rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	margin: 0 0 0.75rem;
	text-transform: uppercase;
}

.jeg-course-hero h2,
.jeg-course-hero h1 {
	font-size: clamp(1.6rem, 3vw, 2.4rem);
	line-height: 1.15;
	margin: 0 0 0.75rem;
	max-width: 34ch;
}

.jeg-lead {
	color: rgba(255, 255, 255, 0.82);
	font-size: 1rem;
	line-height: 1.7;
	margin: 0;
	max-width: 72ch;
}

.jeg-progress-steps {
	display: grid;
	gap: 0.75rem;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	margin-top: 1.5rem;
}

.jeg-step {
	align-items: center;
	background: rgba(255, 255, 255, 0.08);
	backdrop-filter: blur(8px);
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: 16px;
	display: flex;
	gap: 0.75rem;
	padding: 0.9rem 1rem;
}

.jeg-step span {
	align-items: center;
	background: var(--jeg-accent);
	border-radius: 999px;
	display: inline-flex;
	flex: 0 0 auto;
	font-weight: 700;
	height: 2rem;
	justify-content: center;
	width: 2rem;
}

.jeg-step strong {
	font-size: 0.95rem;
	font-weight: 600;
}

.jeg-course-toolbar,
.jeg-vocab-search,
.jeg-quiz-actions {
	margin-bottom: 1.25rem;
}

.jeg-search-input {
	background: #fff;
	border: 1px solid var(--jeg-border);
	border-radius: 14px;
	box-shadow: 0 2px 6px rgba(17, 24, 39, 0.04);
	color: var(--jeg-text);
	font-size: 1rem;
	padding: 0.9rem 1rem;
	width: 100%;
}

.jeg-search-input:focus {
	border-color: var(--jeg-accent);
	box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12);
	outline: none;
}

.jeg-filter-row {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin-top: 0.9rem;
}

.jeg-filter-button,
.jeg-button,
.jeg-quiz-choice {
	appearance: none;
	background: #fff;
	border: 1px solid var(--jeg-border);
	border-radius: 12px;
	color: var(--jeg-text);
	cursor: pointer;
	display: inline-flex;
	font-weight: 700;
	justify-content: center;
	line-height: 1.2;
	padding: 0.8rem 1rem;
	text-decoration: none;
	transition: transform 0.16s ease, border-color 0.16s ease, background-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
}

.jeg-filter-button:hover,
.jeg-button:hover,
.jeg-quiz-choice:hover {
	border-color: var(--jeg-accent);
	box-shadow: 0 10px 24px rgba(220, 38, 38, 0.12);
	transform: translateY(-1px);
}

.jeg-filter-button.is-active {
	background: var(--jeg-accent);
	border-color: var(--jeg-accent);
	color: #fff;
}

.jeg-course-summary {
	display: grid;
	gap: 1rem;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	margin-bottom: 1.1rem;
}

.jeg-summary-card {
	background: var(--jeg-card);
	border: 1px solid var(--jeg-border);
	border-radius: 18px;
	box-shadow: var(--jeg-shadow);
	padding: 1.1rem 1.2rem;
}

.jeg-summary-card strong,
.jeg-quiz-scoreboard strong {
	display: block;
	font-size: 1.4rem;
	margin-bottom: 0.25rem;
}

.jeg-summary-card span,
.jeg-card-time,
.jeg-card-tag,
.jeg-detail-categories span,
.jeg-card-categories span,
.jeg-quiz-scoreboard span,
.jeg-rich-text,
.jeg-vocab-table,
.jeg-vocab-table td,
.jeg-vocab-table th {
	color: var(--jeg-muted);
}

.jeg-lesson-grid {
	display: grid;
	gap: 0.9rem;
	grid-template-columns: repeat(3, minmax(0, 1fr));
}

.jeg-lesson-card,
.jeg-lesson-detail,
.jeg-quiz-question,
.jeg-quiz-scoreboard,
.jeg-table-wrap,
.jeg-course-hero--compact,
.jeg-vocab-table,
.jeg-detail-section {
	background: var(--jeg-card);
	border: 1px solid var(--jeg-border);
	border-radius: 20px;
	box-shadow: var(--jeg-shadow);
}

.jeg-lesson-card {
	padding: 1rem;
	transition: border-color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.jeg-lesson-card:hover,
.jeg-lesson-card.is-active {
	border-color: rgba(220, 38, 38, 0.3);
	transform: translateY(-2px);
}

.jeg-card-meta-row,
.jeg-card-categories,
.jeg-detail-categories {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 0.8rem;
}

.jeg-card-tag,
.jeg-card-time,
.jeg-card-categories span,
.jeg-detail-categories span {
	background: var(--jeg-soft);
	border: 1px solid var(--jeg-border);
	border-radius: 999px;
	font-size: 0.82rem;
	padding: 0.35rem 0.65rem;
}

.jeg-lesson-card h3,
.jeg-lesson-detail h2,
.jeg-detail-section h3,
.jeg-quiz-question h3 {
	color: var(--jeg-text);
	line-height: 1.35;
	margin: 0 0 0.75rem;
}

.jeg-lesson-card p {
	line-height: 1.7;
	margin: 0 0 0.8rem;
}

.jeg-course-note {
	color: var(--jeg-muted);
	font-size: 0.92rem;
	margin: 0.9rem 0 0;
	text-align: center;
}

.jeg-lesson-page-shell {
	max-width: 980px;
	padding-top: 0.75rem;
}

.jeg-lesson-page-shell .jeg-lesson-detail {
	margin-bottom: 1rem;
}

.jeg-lesson-page-shell .jeg-quiz-shell {
	max-width: 100%;
	padding: 0;
}

.jeg-button {
	background: var(--jeg-accent);
	border-color: var(--jeg-accent);
	color: #fff;
}

.jeg-button--secondary {
	background: #fff;
	color: var(--jeg-text);
}

.jeg-selected-lesson {
	margin-top: 1.5rem;
}

.jeg-lesson-detail {
	padding: 1.5rem;
}

.jeg-detail-body {
	display: grid;
	gap: 1rem;
	margin-top: 1rem;
}

.jeg-detail-section {
	padding: 1rem 1.1rem;
}

.jeg-rich-text {
	line-height: 1.75;
}

.jeg-rich-text p:first-child {
	margin-top: 0;
}

.jeg-rich-text p:last-child {
	margin-bottom: 0;
}

.jeg-table-wrap {
	overflow-x: auto;
}

.jeg-vocab-table {
	border-collapse: collapse;
	min-width: 100%;
	overflow: hidden;
}

.jeg-vocab-table th,
.jeg-vocab-table td {
	border-bottom: 1px solid var(--jeg-border);
	font-size: 0.95rem;
	padding: 0.9rem 0.9rem;
	text-align: left;
	vertical-align: top;
}

.jeg-vocab-table th {
	background: #f8fafc;
	color: var(--jeg-text);
	font-size: 0.85rem;
	letter-spacing: 0.03em;
	text-transform: uppercase;
}

.jeg-vocab-table tr:last-child td {
	border-bottom: 0;
}

.jeg-quiz-scoreboard {
	align-items: center;
	display: flex;
	justify-content: space-between;
	margin-bottom: 1rem;
	padding: 1rem 1.1rem;
}

.jeg-quiz-list {
	display: grid;
	gap: 1rem;
}

.jeg-quiz-section-title {
	background: linear-gradient(135deg, rgba(17, 24, 39, 0.98), rgba(31, 41, 55, 0.95));
	border-radius: 14px;
	color: #fff;
	font-size: 1rem;
	font-weight: 700;
	letter-spacing: 0.03em;
	margin: 0.5rem 0 0;
	padding: 0.75rem 1rem;
	text-transform: uppercase;
}

.jeg-quiz-question {
	padding: 1.2rem;
}

.jeg-quiz-meta {
	align-items: center;
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	margin: 0 0 0.6rem;
}

.jeg-quiz-meta strong,
.jeg-quiz-meta span {
	background: var(--jeg-soft);
	border: 1px solid var(--jeg-border);
	border-radius: 999px;
	color: var(--jeg-muted);
	font-size: 0.78rem;
	padding: 0.28rem 0.58rem;
}

.jeg-pack-list {
	line-height: 1.7;
	margin: 0;
	padding-left: 1.1rem;
}

.jeg-pack-note {
	background: rgba(220, 38, 38, 0.08);
	border: 1px solid rgba(220, 38, 38, 0.2);
	border-radius: 12px;
	color: #7f1d1d;
	font-size: 0.92rem;
	margin: 1rem 0 0;
	padding: 0.75rem 0.85rem;
}

.jeg-quiz-diagram {
	background: #0f172a;
	border: 1px solid #1e293b;
	border-radius: 12px;
	color: #e2e8f0;
	font-family: "Courier New", Courier, monospace;
	font-size: 0.85rem;
	line-height: 1.45;
	margin: 0 0 0.9rem;
	overflow-x: auto;
	padding: 0.75rem 0.85rem;
	white-space: pre;
}

.jeg-quiz-choices {
	display: grid;
	gap: 0.65rem;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	margin-bottom: 0.9rem;
}

.jeg-quiz-choice {
	justify-content: flex-start;
	text-align: left;
	width: 100%;
}

.jeg-quiz-choice.is-correct {
	background: rgba(34, 197, 94, 0.12);
	border-color: rgba(34, 197, 94, 0.45);
	color: #166534;
}

.jeg-quiz-choice.is-wrong {
	background: rgba(220, 38, 38, 0.1);
	border-color: rgba(220, 38, 38, 0.35);
	color: #991b1b;
}

.jeg-quiz-feedback {
	background: var(--jeg-soft);
	border: 1px solid var(--jeg-border);
	border-radius: 14px;
	padding: 0.9rem 1rem;
}

.jeg-quiz-answer {
	font-weight: 700;
	margin: 0 0 0.4rem;
}

.jeg-quiz-explanation {
	margin: 0;
	line-height: 1.7;
}

.is-hidden {
	display: none !important;
}

@media (max-width: 960px) {
	.jeg-progress-steps,
	.jeg-course-summary,
	.jeg-quiz-choices {
		grid-template-columns: 1fr;
	}

	.jeg-lesson-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.jeg-quiz-scoreboard {
		align-items: flex-start;
		flex-direction: column;
		gap: 0.4rem;
	}
}

@media (max-width: 640px) {
	.jeg-course-shell,
	.jeg-vocab-shell,
	.jeg-quiz-shell {
		padding: 0.75rem;
	}

	.jeg-course-hero,
	.jeg-lesson-detail,
	.jeg-quiz-question,
	.jeg-summary-card,
	.jeg-course-hero--compact,
	.jeg-quiz-scoreboard {
		border-radius: 16px;
		padding: 1rem;
	}

	.jeg-lesson-grid {
		grid-template-columns: 1fr;
	}

	.jeg-filter-row {
		gap: 0.5rem;
	}

	.jeg-filter-button,
	.jeg-button,
	.jeg-quiz-choice {
		width: 100%;
	}

	.jeg-progress-steps {
		gap: 0.6rem;
	}
}