/* ==========================================================================
   THE SLEEP CENTER — SINGLE MATTRESS PROFESSOR LESSON
   ========================================================================== */

:root {
	--tsc-mps-navy: #102b4e;
	--tsc-mps-navy-deep: #081c33;
	--tsc-mps-red: #b7292f;
	--tsc-mps-red-dark: #922128;
	--tsc-mps-cream: #f7f3ec;
	--tsc-mps-white: #ffffff;
	--tsc-mps-ink: #18202a;
	--tsc-mps-muted: #5e6873;
	--tsc-mps-line: #dce2e8;
	--tsc-mps-soft: #f4f7fa;
	--tsc-mps-shadow: 0 18px 50px rgba(8, 28, 51, 0.10);
	--tsc-mps-container: 1180px;
	--tsc-mps-reading: 820px;
}

.tsc-mp-lesson,
.tsc-mp-lesson *,
.tsc-mp-lesson *::before,
.tsc-mp-lesson *::after {
	box-sizing: border-box;
}


/* ==========================================================================
   GENESIS RESET
   ========================================================================== */

.tsc-mattress-professor-single .site-inner,
.tsc-mattress-professor-single .content-sidebar-wrap,
.tsc-mattress-professor-single .content,
.tsc-mattress-professor-single article.entry,
.tsc-mattress-professor-single .entry-content {
	width: 100%;
	max-width: none;
	margin: 0;
	padding: 0;
}

.tsc-mattress-professor-single .content > .entry {
	margin: 0;
	padding: 0;
	background: transparent;
	box-shadow: none;
}

.tsc-mp-single-container {
	width: min(calc(100% - 40px), var(--tsc-mps-container));
	margin-inline: auto;
}


/* ==========================================================================
   SHARED
   ========================================================================== */

.tsc-mp-single-eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	color: var(--tsc-mps-red);
	font-size: 0.76rem;
	font-weight: 900;
	letter-spacing: 0.13em;
	line-height: 1.4;
	text-transform: uppercase;
}

.tsc-mp-single-eyebrow::before {
	content: "★";
	font-size: 0.7rem;
}

.tsc-mp-single-eyebrow--light {
	color: #ffd9dc;
}

.tsc-mp-single-eyebrow--white {
	color: var(--tsc-mps-white);
}

.tsc-mp-single-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 48px;
	margin-top: 1.35rem;
	padding: 0.78rem 1.25rem;
	border: 2px solid transparent;
	border-radius: 999px;
	font-size: 0.88rem;
	font-weight: 800;
	line-height: 1.2;
	text-decoration: none;
}

.tsc-mp-single-btn--light {
	border-color: rgba(255, 255, 255, 0.45);
	color: var(--tsc-mps-white);
}

.tsc-mp-single-btn--white {
	background: var(--tsc-mps-white);
	color: var(--tsc-mps-red-dark);
}


/* ==========================================================================
   LESSON HERO
   ========================================================================== */

.tsc-mp-lesson-hero {
	position: relative;
	overflow: hidden;
	padding: clamp(48px, 6vw, 82px) 0 clamp(48px, 6vw, 76px);
	background:
		linear-gradient(90deg, rgba(8, 28, 51, 0.035) 1px, transparent 1px),
		linear-gradient(rgba(8, 28, 51, 0.035) 1px, transparent 1px),
		var(--tsc-mps-cream);
	background-size: 34px 34px;
}

.tsc-mp-lesson-hero::before,
.tsc-mp-lesson-hero::after {
	content: "";
	position: absolute;
	top: 0;
	height: 6px;
}

.tsc-mp-lesson-hero::before {
	left: 0;
	width: 58%;
	background: var(--tsc-mps-red);
}

.tsc-mp-lesson-hero::after {
	right: 0;
	width: 42%;
	background: var(--tsc-mps-navy);
}

.tsc-mp-lesson-back {
	display: inline-block;
	margin-bottom: clamp(26px, 4vw, 42px);
	color: var(--tsc-mps-navy);
	font-size: 0.84rem;
	font-weight: 800;
	text-decoration: none;
}

.tsc-mp-lesson-back:hover {
	color: var(--tsc-mps-red);
}

.tsc-mp-lesson-hero__grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	align-items: center;
	gap: clamp(30px, 6vw, 76px);
}

.tsc-mp-lesson-hero__copy {
	max-width: 820px;
}

.tsc-mp-lesson-hero h1 {
	max-width: 800px;
	margin: 0.8rem 0 1rem;
	color: var(--tsc-mps-navy-deep);
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(2.6rem, 5vw, 4.9rem);
	line-height: 1.02;
	letter-spacing: -0.04em;
}

.tsc-mp-lesson-hero__lead {
	max-width: 700px;
	margin: 0;
	color: var(--tsc-mps-muted);
	font-size: clamp(1.05rem, 1.6vw, 1.2rem);
	line-height: 1.65;
}

.tsc-mp-lesson-number {
	display: flex;
	width: 190px;
	height: 190px;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	border-radius: 28px 28px 70px 28px;
	background: linear-gradient(145deg, var(--tsc-mps-navy-deep), var(--tsc-mps-navy));
	box-shadow: var(--tsc-mps-shadow);
	color: var(--tsc-mps-white);
	text-align: center;
}

.tsc-mp-lesson-number span {
	margin-bottom: 0.3rem;
	color: #ffd9dc;
	font-size: 0.68rem;
	font-weight: 900;
	letter-spacing: 0.15em;
	text-transform: uppercase;
}

.tsc-mp-lesson-number strong {
	font-family: Georgia, "Times New Roman", serif;
	font-size: 5rem;
	line-height: 0.9;
	letter-spacing: -0.06em;
}


/* ==========================================================================
   COURSE PROGRESS
   ========================================================================== */

.tsc-mp-progress {
	display: grid;
	grid-template-columns: repeat(7, minmax(0, 1fr));
	gap: 10px;
	margin-top: clamp(34px, 5vw, 56px);
}

.tsc-mp-progress__item {
	position: relative;
	display: flex;
	min-width: 0;
	align-items: center;
	justify-content: center;
	padding-top: 13px;
	border-top: 3px solid #cfd6dd;
	color: #89929c;
	font-size: 0.72rem;
	font-weight: 900;
	text-decoration: none;
	transition:
		border-color 0.2s ease,
		color 0.2s ease;
}

.tsc-mp-progress__item.is-complete {
	border-color: var(--tsc-mps-navy);
	color: var(--tsc-mps-navy);
}

.tsc-mp-progress__item.is-current {
	border-color: var(--tsc-mps-red);
	color: var(--tsc-mps-red);
}

.tsc-mp-progress__item.is-current::before {
	content: "";
	position: absolute;
	top: -7px;
	left: 50%;
	width: 11px;
	height: 11px;
	border-radius: 50%;
	background: var(--tsc-mps-red);
	transform: translateX(-50%);
}


/* ==========================================================================
   LESSON CONTENT
   ========================================================================== */

.tsc-mp-lesson-main {
	padding: clamp(66px, 8vw, 110px) 0;
	background: var(--tsc-mps-soft);
}

.tsc-mp-lesson-content {
	width: min(100%, var(--tsc-mps-reading));
	margin-inline: auto;
	padding: clamp(30px, 5vw, 58px);
	border: 1px solid rgba(8, 28, 51, 0.08);
	border-radius: 24px;
	background: var(--tsc-mps-white);
	box-shadow: 0 12px 34px rgba(8, 28, 51, 0.06);
	color: var(--tsc-mps-ink);
	font-size: 1.05rem;
	line-height: 1.8;
}

.tsc-mp-lesson-content > :first-child {
	margin-top: 0;
}

.tsc-mp-lesson-content > :last-child {
	margin-bottom: 0;
}

.tsc-mp-lesson-content p {
	margin: 0 0 1.3rem;
}

.tsc-mp-lesson-content h2,
.tsc-mp-lesson-content h3,
.tsc-mp-lesson-content h4 {
	color: var(--tsc-mps-navy-deep);
	font-family: Georgia, "Times New Roman", serif;
	line-height: 1.15;
	letter-spacing: -0.02em;
}

.tsc-mp-lesson-content h2 {
	margin: 2.2rem 0 0.7rem;
	font-size: 2rem;
}

.tsc-mp-lesson-content h3 {
	margin: 1.8rem 0 0.6rem;
	font-size: 1.55rem;
}

.tsc-mp-lesson-content strong {
	color: var(--tsc-mps-navy-deep);
}

.tsc-mp-lesson-content ul,
.tsc-mp-lesson-content ol {
	margin: 1rem 0 1.5rem;
	padding-left: 1.4rem;
}

.tsc-mp-lesson-content li + li {
	margin-top: 0.45rem;
}

.tsc-mp-lesson-content a {
	color: var(--tsc-mps-red-dark);
	text-decoration-thickness: 1px;
	text-underline-offset: 3px;
}


/* Professor factoid */

.tsc-mp-lesson-factoid {
	margin: 2rem 0 0;
	padding: 1.35rem 1.5rem;
	border-left: 5px solid var(--tsc-mps-red);
	border-radius: 0 16px 16px 0;
	background: var(--tsc-mps-cream);
}

.tsc-mp-lesson-factoid__label {
	display: block;
	margin-bottom: 0.4rem;
	color: var(--tsc-mps-red);
	font-size: 0.7rem;
	font-weight: 900;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.tsc-mp-lesson-factoid p {
	margin: 0;
	color: var(--tsc-mps-navy-deep);
	font-weight: 700;
}


/* ==========================================================================
   PREVIOUS / NEXT
   ========================================================================== */

.tsc-mp-lesson-nav {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1rem;
	width: min(100%, 980px);
	margin: clamp(38px, 6vw, 64px) auto 0;
}

.tsc-mp-lesson-nav__card {
	display: flex;
	min-height: 132px;
	flex-direction: column;
	justify-content: center;
	padding: 1.5rem 1.65rem;
	border: 1px solid var(--tsc-mps-line);
	border-radius: 18px;
	background: var(--tsc-mps-white);
	color: var(--tsc-mps-navy-deep);
	text-decoration: none;
	transition:
		transform 0.2s ease,
		box-shadow 0.2s ease,
		border-color 0.2s ease;
}

.tsc-mp-lesson-nav__card:hover {
	transform: translateY(-2px);
	border-color: rgba(16, 43, 78, 0.28);
	box-shadow: 0 10px 28px rgba(8, 28, 51, 0.07);
}

.tsc-mp-lesson-nav__card span {
	margin-bottom: 0.45rem;
	color: var(--tsc-mps-red);
	font-size: 0.7rem;
	font-weight: 900;
	letter-spacing: 0.11em;
	text-transform: uppercase;
}

.tsc-mp-lesson-nav__card strong {
	font-family: Georgia, "Times New Roman", serif;
	font-size: 1.35rem;
	line-height: 1.15;
}

.tsc-mp-lesson-nav__card--next {
	text-align: right;
}


/* ==========================================================================
   GLOSSARY PANEL
   ========================================================================== */

.tsc-mp-single-glossary {
	padding: clamp(64px, 7vw, 96px) 0;
	background: var(--tsc-mps-cream);
}

.tsc-mp-single-glossary__panel {
	display: grid;
	grid-template-columns: 180px minmax(0, 1fr);
	align-items: center;
	gap: clamp(28px, 5vw, 62px);
	width: min(100%, 980px);
	margin-inline: auto;
	padding: clamp(30px, 5vw, 50px);
	border-radius: 26px;
	background: var(--tsc-mps-navy-deep);
	color: var(--tsc-mps-white);
}

.tsc-mp-single-glossary__mark {
	display: grid;
	width: 160px;
	height: 160px;
	place-items: center;
	border: 1px solid rgba(255, 255, 255, 0.16);
	border-radius: 24px 24px 58px 24px;
	background: rgba(255, 255, 255, 0.05);
	font-family: Georgia, "Times New Roman", serif;
	font-size: 3.5rem;
	font-weight: 700;
}

.tsc-mp-single-glossary h2 {
	margin: 0.55rem 0 0.65rem;
	color: var(--tsc-mps-white);
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(2rem, 3vw, 2.8rem);
	line-height: 1.05;
	letter-spacing: -0.03em;
}

.tsc-mp-single-glossary p {
	max-width: 650px;
	margin: 0;
	color: rgba(255, 255, 255, 0.74);
}


/* ==========================================================================
   FINAL CTA
   ========================================================================== */

.tsc-mp-single-cta {
	padding: clamp(66px, 7vw, 100px) 0;
}

.tsc-mp-single-cta__panel {
	position: relative;
	overflow: hidden;
	width: min(100%, 980px);
	margin-inline: auto;
	padding: clamp(36px, 6vw, 62px);
	border-radius: 28px;
	background: var(--tsc-mps-red);
	color: var(--tsc-mps-white);
}

.tsc-mp-single-cta__panel::after {
	content: "★";
	position: absolute;
	top: -68px;
	right: 28px;
	color: rgba(255, 255, 255, 0.10);
	font-size: 12rem;
	line-height: 1;
	transform: rotate(14deg);
}

.tsc-mp-single-cta h2 {
	position: relative;
	z-index: 1;
	max-width: 720px;
	margin: 0.55rem 0 0.75rem;
	color: var(--tsc-mps-white);
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(2rem, 3.6vw, 3.2rem);
	line-height: 1.05;
	letter-spacing: -0.03em;
}

.tsc-mp-single-cta p {
	position: relative;
	z-index: 1;
	max-width: 700px;
	margin: 0;
	color: rgba(255, 255, 255, 0.86);
}

.tsc-mp-single-cta .tsc-mp-single-eyebrow,
.tsc-mp-single-cta .tsc-mp-single-btn {
	position: relative;
	z-index: 1;
}


/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 800px) {

	.tsc-mp-lesson-hero__grid {
		grid-template-columns: 1fr;
	}

	.tsc-mp-lesson-number {
		width: 150px;
		height: 150px;
	}

	.tsc-mp-lesson-number strong {
		font-size: 4rem;
	}

	.tsc-mp-single-glossary__panel {
		grid-template-columns: 1fr;
	}

	.tsc-mp-single-glossary__mark {
		width: 130px;
		height: 130px;
		font-size: 3rem;
	}
}


@media (max-width: 620px) {

	.tsc-mp-single-container {
		width: min(calc(100% - 28px), var(--tsc-mps-container));
	}

	.tsc-mp-lesson-hero h1 {
		font-size: clamp(2.45rem, 12vw, 3.7rem);
	}

	.tsc-mp-progress {
		gap: 5px;
	}

	.tsc-mp-progress__item {
		padding-top: 10px;
		font-size: 0.63rem;
	}

	.tsc-mp-lesson-content {
		padding: 26px 22px;
		border-radius: 18px;
		font-size: 1rem;
	}

	.tsc-mp-lesson-nav {
		grid-template-columns: 1fr;
	}

	.tsc-mp-lesson-nav__card--next {
		text-align: left;
	}

	.tsc-mp-single-glossary__panel,
	.tsc-mp-single-cta__panel {
		border-radius: 20px;
	}
}