:root {
	--lf-ms-ink: #273044;
	--lf-ms-blue: #133c63;
	--lf-ms-red: #ba1f33;
	--lf-ms-gold: #f2b84b;
	--lf-ms-sky: #eaf4fb;
	--lf-ms-border: #dbe3ee;
	--lf-ms-soft: #f7fafc;
	--lf-ms-radius: 14px;
	--lf-ms-shadow: 0 18px 45px rgba(19, 60, 99, 0.14);
}

.masterstudy-course-player-lesson .lf-ms-video {
	box-sizing: border-box;
	width: min(100%, 900px);
	margin: 0 auto 24px;
	padding: clamp(10px, 1.8vw, 14px);
	color: var(--lf-ms-ink);
	background:
		linear-gradient(135deg, rgba(234, 244, 251, 0.96), rgba(255, 255, 255, 0.98) 52%, rgba(255, 248, 231, 0.92)),
		var(--lf-ms-soft);
	border: 1px solid rgba(219, 227, 238, 0.92);
	border-radius: var(--lf-ms-radius);
	box-shadow: var(--lf-ms-shadow);
}

.masterstudy-course-player-lesson .lf-ms-video,
.masterstudy-course-player-lesson .lf-ms-video * {
	box-sizing: border-box;
}

.masterstudy-course-player-lesson .lf-ms-video__frame {
	position: relative;
	overflow: hidden;
	padding: clamp(8px, 1.2vw, 11px);
	background: #ffffff;
	border: 1px solid rgba(219, 227, 238, 0.9);
	border-radius: calc(var(--lf-ms-radius) - 4px);
}

.masterstudy-course-player-lesson .lf-ms-video__frame::before {
	content: "";
	display: block;
	width: 72px;
	height: 4px;
	margin: 0 0 9px;
	background: linear-gradient(90deg, var(--lf-ms-red), var(--lf-ms-gold), var(--lf-ms-blue));
	border-radius: 999px;
}

.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video,
.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__container,
.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__wrapper,
.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__embed-wrapper {
	width: 100%;
	max-width: 100%;
}

.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__container {
	overflow: hidden;
	background: #071522;
	border-radius: 10px;
}

.masterstudy-course-player-lesson .lf-ms-video iframe,
.masterstudy-course-player-lesson .lf-ms-video video,
.masterstudy-course-player-lesson .lf-ms-video .plyr,
.masterstudy-course-player-lesson .lf-ms-video .plyr__video-wrapper,
.masterstudy-course-player-lesson .lf-ms-video .plyr__video-embed {
	display: block;
	width: 100%;
	max-width: 100%;
	border: 0;
	border-radius: 10px;
}

.masterstudy-course-player-lesson .lf-ms-video iframe {
	aspect-ratio: 16 / 9;
	height: auto;
	min-height: 180px;
}

.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__progress {
	margin-top: 14px;
	padding: 14px;
	background: rgba(234, 244, 251, 0.78);
	border: 1px solid rgba(219, 227, 238, 0.95);
	border-radius: 10px;
}

.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__progress-title {
	color: var(--lf-ms-blue);
	font-weight: 700;
	line-height: 1.35;
}

.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__progress-bar {
	overflow: hidden;
	background: rgba(19, 60, 99, 0.12);
	border-radius: 999px;
}

.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__progress-bar-value {
	background: linear-gradient(90deg, var(--lf-ms-red), var(--lf-ms-gold));
	border-radius: inherit;
}

@media (max-width: 920px) {
	.masterstudy-course-player-lesson .lf-ms-video {
		width: 100%;
		margin-bottom: 22px;
		border-radius: 12px;
	}
}

@media (max-width: 640px) {
	.masterstudy-course-player-lesson .lf-ms-video {
		padding: 8px;
		box-shadow: 0 12px 26px rgba(19, 60, 99, 0.12);
	}

	.masterstudy-course-player-lesson .lf-ms-video__frame {
		padding: 8px;
	}

	.masterstudy-course-player-lesson .lf-ms-video__frame::before {
		width: 52px;
		height: 4px;
		margin-bottom: 8px;
	}

	.masterstudy-course-player-lesson .lf-ms-video iframe {
		min-height: 172px;
	}

	.masterstudy-course-player-lesson .lf-ms-video .masterstudy-course-player-lesson-video__progress {
		padding: 12px;
	}
}

.lf-ms-confetti-layer {
	position: fixed;
	inset: 0;
	z-index: 999999;
	pointer-events: none;
	overflow: hidden;
}

.lf-ms-confetti-piece {
	position: absolute;
	top: -18px;
	left: var(--lf-confetti-x);
	width: var(--lf-confetti-size);
	height: calc(var(--lf-confetti-size) * 1.65);
	background: var(--lf-confetti-color);
	border-radius: 2px;
	opacity: 0;
	transform: translate3d(0, -20px, 0) rotate(0deg);
	animation: lf-ms-confetti-fall var(--lf-confetti-duration) cubic-bezier(0.18, 0.78, 0.28, 1) forwards;
	animation-delay: var(--lf-confetti-delay);
}

.lf-ms-confetti-piece:nth-child(3n) {
	border-radius: 999px;
}

.lf-ms-confetti-piece:nth-child(4n) {
	width: calc(var(--lf-confetti-size) * 1.8);
	height: calc(var(--lf-confetti-size) * 0.8);
}

@keyframes lf-ms-confetti-fall {
	0% {
		opacity: 0;
		transform: translate3d(0, -20px, 0) rotate(0deg);
	}

	10% {
		opacity: 1;
	}

	100% {
		opacity: 0;
		transform: translate3d(var(--lf-confetti-drift), 105vh, 0) rotate(var(--lf-confetti-rotate));
	}
}

@media (prefers-reduced-motion: reduce) {
	.lf-ms-confetti-layer {
		display: none;
	}

	.lf-ms-confetti-piece {
		animation: none;
	}
}

.masterstudy-course-player-content .masterstudy-course-player-quiz {
	--lf-ms-quiz-card: #ffffff;
	--lf-ms-quiz-soft: #f7fafc;
	--lf-ms-quiz-line: rgba(219, 227, 238, 0.95);
	--lf-ms-quiz-focus: rgba(19, 60, 99, 0.1);
	box-sizing: border-box;
	width: min(100%, 860px);
	margin: 0 auto 32px;
	color: var(--lf-ms-ink);
	font-family: "Albert Sans", "Montserrat", system-ui, sans-serif;
}

.masterstudy-course-player-content .masterstudy-course-player-quiz,
.masterstudy-course-player-content .masterstudy-course-player-quiz * {
	box-sizing: border-box;
}

.masterstudy-course-player-content .masterstudy-course-player-quiz__content {
	margin-bottom: 18px;
	padding: clamp(14px, 2vw, 20px);
	background: var(--lf-ms-quiz-soft);
	border: 1px solid var(--lf-ms-quiz-line);
	border-radius: 12px;
}

.masterstudy-course-player-content .masterstudy-course-player-question {
	margin: 0 0 clamp(18px, 3vw, 28px);
	padding: clamp(16px, 2.4vw, 24px);
	background:
		linear-gradient(135deg, rgba(234, 244, 251, 0.78), rgba(255, 255, 255, 0.98) 45%, rgba(255, 248, 231, 0.72)),
		var(--lf-ms-quiz-card);
	border: 1px solid var(--lf-ms-quiz-line);
	border-radius: 14px;
	box-shadow: 0 14px 34px rgba(19, 60, 99, 0.1);
}

.masterstudy-course-player-content .masterstudy-course-player-question__header {
	margin-bottom: 18px;
}

.masterstudy-course-player-content .masterstudy-course-player-question__title {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	margin-bottom: 14px;
	color: var(--lf-ms-blue);
	font-weight: 800;
	line-height: 1.35;
}

.masterstudy-course-player-content .masterstudy-course-player-question-render-title {
	display: inline-flex;
	flex: 0 0 auto;
	align-items: center;
	justify-content: center;
	min-width: 34px;
	height: 34px;
	padding: 0 8px;
	color: #ffffff;
	background: var(--lf-ms-blue);
	border-radius: 999px;
	font-size: 14px;
	line-height: 1;
}

.masterstudy-course-player-content .masterstudy-course-player-question-render-content {
	padding-top: 4px;
	font-size: clamp(17px, 1.5vw, 20px);
}

.masterstudy-course-player-content .masterstudy-course-player-question__description {
	padding: clamp(12px, 1.8vw, 16px);
	color: var(--lf-ms-ink);
	background: rgba(255, 255, 255, 0.82);
	border: 1px solid rgba(219, 227, 238, 0.78);
	border-radius: 12px;
	line-height: 1.75;
	overflow-wrap: anywhere;
}

.masterstudy-course-player-content .masterstudy-course-player-question__description p:last-child {
	margin-bottom: 0;
}

.masterstudy-course-player-content .question-audio-player-wrapper {
	margin: 16px 0 18px;
	padding: 12px;
	background: #eef3f9;
	border: 1px solid rgba(219, 227, 238, 0.96);
	border-radius: 12px;
}

.masterstudy-course-player-content .question-audio-player-title {
	margin-bottom: 8px;
	color: var(--lf-ms-blue);
	font-weight: 800;
}

.masterstudy-course-player-content .masterstudy-course-player-question__content {
	display: grid;
	gap: 10px;
}

.masterstudy-course-player-content .masterstudy-course-player-answer {
	position: relative;
	display: flex;
	align-items: center;
	min-height: 48px;
	padding: 12px 14px;
	background: #ffffff;
	border: 1px solid rgba(219, 227, 238, 0.96);
	border-radius: 12px;
	transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.masterstudy-course-player-content .masterstudy-course-player-answer:hover,
.masterstudy-course-player-content .masterstudy-course-player-answer:focus-within {
	background: #fbfdff;
	border-color: rgba(19, 60, 99, 0.34);
	box-shadow: 0 8px 20px rgba(19, 60, 99, 0.08);
}

.masterstudy-course-player-content .masterstudy-course-player-answer__input {
	display: flex;
	flex: 0 0 auto;
	align-items: center;
	margin-right: 12px;
}

.masterstudy-course-player-content .masterstudy-course-player-answer__wrapper {
	display: flex;
	flex: 1 1 auto;
	align-items: center;
	min-width: 0;
}

.masterstudy-course-player-content .masterstudy-course-player-answer__text {
	color: var(--lf-ms-ink);
	font-size: 16px;
	font-weight: 650;
	line-height: 1.4;
	overflow-wrap: anywhere;
}

.masterstudy-course-player-content .masterstudy-course-player-answer_correct {
	border-color: rgba(29, 184, 116, 0.48);
	background: rgba(29, 184, 116, 0.08);
}

.masterstudy-course-player-content .masterstudy-course-player-answer_wrong {
	border-color: rgba(186, 31, 51, 0.42);
	background: rgba(186, 31, 51, 0.07);
}

.masterstudy-course-player-content .masterstudy-course-player-quiz__pagination {
	margin-top: 18px;
}

@media (max-width: 920px) {
	.masterstudy-course-player-content .masterstudy-course-player-quiz {
		width: 100%;
		margin-bottom: 24px;
	}
}

@media (max-width: 640px) {
	.masterstudy-course-player-content .masterstudy-course-player-question {
		padding: 14px;
		border-radius: 12px;
		box-shadow: 0 10px 22px rgba(19, 60, 99, 0.08);
	}

	.masterstudy-course-player-content .masterstudy-course-player-question__title {
		gap: 10px;
	}

	.masterstudy-course-player-content .masterstudy-course-player-question-render-title {
		min-width: 30px;
		height: 30px;
		font-size: 13px;
	}

	.masterstudy-course-player-content .masterstudy-course-player-answer {
		min-height: 52px;
		padding: 12px;
	}
}