:root {
	--sigma-ink: #162033;
	--sigma-blue: #1f6feb;
	--sigma-green: #0f9f6e;
	--sigma-red: #d73348;
	--sigma-gold: #d99018;
	--sigma-paper: #fbfcff;
	--sigma-soft: #eef5ff;
	--sigma-line: #dfe7f3;
	--sigma-muted: #5c6b80;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	background:
		linear-gradient(180deg, rgba(31, 111, 235, 0.08), transparent 420px),
		var(--sigma-paper);
	color: var(--sigma-ink);
}

.wp-site-blocks {
	min-height: 100vh;
}

.sigma-header {
	border-bottom: 1px solid var(--sigma-line);
	background: rgba(251, 252, 255, 0.94);
	position: sticky;
	top: 0;
	z-index: 20;
}

.sigma-header__inner,
.sigma-footer__inner {
	align-items: center;
	display: flex;
	gap: 1.25rem;
	justify-content: space-between;
	margin: 0 auto;
	max-width: 1180px;
	padding: 0.8rem 1.25rem;
}

.sigma-brand {
	align-items: center;
	color: var(--sigma-ink);
	display: inline-flex;
	font-weight: 800;
	gap: 0.65rem;
	letter-spacing: 0;
}

.sigma-mark {
	align-items: center;
	background: var(--sigma-ink);
	border-radius: 8px;
	color: #fff;
	display: inline-flex;
	font-family: "Times New Roman", serif;
	font-size: 1.35rem;
	font-weight: 700;
	height: 2.35rem;
	justify-content: center;
	width: 2.35rem;
}

.sigma-nav {
	display: flex;
	flex-wrap: wrap;
	gap: 0.25rem;
	justify-content: flex-end;
}

.sigma-nav a {
	border-radius: 7px;
	color: var(--sigma-ink);
	font-size: 0.94rem;
	font-weight: 650;
	padding: 0.45rem 0.65rem;
}

.sigma-nav a:hover,
.sigma-nav a:focus {
	background: var(--sigma-soft);
	color: var(--sigma-blue);
}

.sigma-menu-toggle,
.sigma-menu-close {
	align-items: center;
	background: #fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	color: var(--sigma-ink);
	cursor: pointer;
	display: none;
	font: inherit;
	font-weight: 800;
	justify-content: center;
}

.sigma-menu-toggle {
	gap: 0.55rem;
	min-height: 2.75rem;
	padding: 0.55rem 0.75rem;
}

.sigma-menu-toggle__icon {
	display: grid;
	gap: 0.25rem;
	width: 1.15rem;
}

.sigma-menu-toggle__icon span {
	background: currentColor;
	border-radius: 999px;
	display: block;
	height: 2px;
}

.sigma-menu-close {
	font-size: 1.6rem;
	height: 2.55rem;
	line-height: 1;
	width: 2.55rem;
}

.sigma-menu-toggle:hover,
.sigma-menu-toggle:focus,
.sigma-menu-close:hover,
.sigma-menu-close:focus {
	background: var(--sigma-soft);
	color: var(--sigma-blue);
}

.sigma-drawer-overlay,
.sigma-mobile-drawer {
	display: none;
}

.sigma-hero {
	padding: 4.5rem 1.25rem 2.25rem;
}

.sigma-hero__grid {
	display: grid;
	gap: 2rem;
	grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
	margin: 0 auto;
	max-width: 1180px;
}

.sigma-kicker {
	color: var(--sigma-green);
	font-size: 0.86rem;
	font-weight: 800;
	letter-spacing: 0;
	margin: 0 0 0.8rem;
	text-transform: uppercase;
}

.sigma-hero h1 {
	font-size: clamp(2.35rem, 5vw, 4.7rem);
	line-height: 1;
	margin: 0 0 1rem;
	max-width: 880px;
}

.sigma-hero p {
	color: var(--sigma-muted);
	font-size: 1.16rem;
	max-width: 720px;
}

.sigma-hero__panel,
.sigma-course-card,
.sigma-lesson-map,
.sigma-video-placeholder,
.sigma-callout {
	background: #fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	box-shadow: 0 14px 34px rgba(22, 32, 51, 0.07);
}

.sigma-hero__panel {
	align-self: end;
	padding: 1.25rem;
}

.sigma-formula {
	background: var(--sigma-ink);
	border-radius: 8px;
	color: #fff;
	font-family: "Times New Roman", "Cambria Math", serif;
	font-size: 1.8rem;
	line-height: 1.25;
	margin: 0;
	padding: 1.5rem;
}

.sigma-course-grid {
	display: grid;
	gap: 1rem;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	margin: 2rem auto 4rem;
	max-width: 1180px;
	padding: 0 1.25rem;
}

.sigma-course-card {
	border-top: 4px solid var(--sigma-blue);
	padding: 1.15rem;
}

.sigma-course-card:nth-child(2) {
	border-top-color: var(--sigma-green);
}

.sigma-course-card:nth-child(3) {
	border-top-color: var(--sigma-red);
}

.sigma-course-card h2 {
	font-size: 1.25rem;
	margin: 0 0 0.45rem;
}

.sigma-course-card p {
	color: var(--sigma-muted);
	margin: 0;
}

.sigma-main {
	margin: 0 auto;
	max-width: 1180px;
	padding: 2rem 1.25rem 4rem;
}

.sigma-lesson-page .sigma-main,
.page-template-lesson .sigma-main {
	max-width: none;
	width: 95%;
}

.sigma-lesson-layout {
	align-items: start;
	display: grid;
	gap: 1.5rem;
	grid-template-columns: minmax(0, 1fr) 300px;
}

.sigma-lesson-layout > .sigma-lesson-content {
	grid-column: 1;
	order: 1;
}

.sigma-lesson-layout > .sigma-lesson-sidebar {
	grid-column: 2;
	order: 2;
}

.sigma-lesson-map {
	padding: 1rem;
}

.sigma-lesson-map h2 {
	font-size: 1.08rem;
	font-weight: 850;
	margin: 0 0 0.65rem;
}

.sigma-lesson-map ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.sigma-lesson-map a {
	border-left: 3px solid transparent;
	border-radius: 7px;
	color: var(--sigma-muted);
	display: block;
	font-size: 0.94rem;
	font-weight: 650;
	line-height: 1.25;
	margin: 0.08rem 0;
	padding: 0.46rem 0.55rem;
	transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

.sigma-lesson-map a:hover {
	background: var(--sigma-soft);
	color: var(--sigma-blue);
}

.sigma-map-item--major a {
	border-left-color: #1f6feb;
	color: #163f88;
	font-size: 1rem;
	font-weight: 850;
}

.sigma-map-item--minor a {
	border-left-color: #0f9f6e;
	color: #0a6d4e;
	font-weight: 780;
	margin-left: 0.45rem;
}

.sigma-map-item--small a {
	border-left-color: #d99018;
	color: #8a570b;
	font-size: 0.91rem;
	margin-left: 0.85rem;
}

.sigma-map-item--box a {
	font-size: 0.9rem;
	margin-left: 1.05rem;
}

.sigma-map-item--activite a {
	border-left-color: #008ca8;
	color: #006a80;
}

.sigma-map-item--definition a {
	border-left-color: #1f6feb;
	color: #1957b7;
}

.sigma-map-item--propriete a {
	border-left-color: #0f9f6e;
	color: #0a7a55;
}

.sigma-map-item--theoreme a {
	border-left-color: #6d5bd0;
	color: #5748aa;
}

.sigma-map-item--exemple a {
	border-left-color: #4f7d1f;
	color: #426719;
}

.sigma-map-item--application a {
	border-left-color: #b25f00;
	color: #8d4a00;
}

.sigma-map-item--exercice a {
	border-left-color: #d99018;
	color: #9a640e;
}

.sigma-map-item--demonstration a {
	border-left-color: #d73348;
	color: #a32636;
}

.sigma-map-item--preuve a {
	border-left-color: #0f766e;
	color: #0d5f59;
}

.sigma-map-item--video a {
	border-left-color: #c026d3;
	color: #971ca7;
}

.sigma-lesson-content {
	background: #fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	padding: clamp(1rem, 3vw, 2rem);
}

.sigma-inline-lead-cta {
	align-items: center;
	background: linear-gradient(135deg, rgba(31, 111, 235, 0.1), rgba(15, 159, 110, 0.08)), #fff;
	border: 1px solid var(--sigma-line);
	border-left: 4px solid var(--sigma-green);
	border-radius: 8px;
	display: flex;
	gap: 0.75rem;
	justify-content: space-between;
	margin: 0.7rem 0 1rem;
	padding: 0.65rem 0.8rem;
}

.sigma-inline-lead-cta span {
	color: var(--sigma-ink);
	font-size: 0.94rem;
	font-weight: 750;
}

.sigma-inline-lead-cta a {
	align-items: center;
	background: var(--sigma-green);
	border-radius: 7px;
	color: #fff;
	display: inline-flex;
	font-size: 0.9rem;
	font-weight: 800;
	justify-content: center;
	line-height: 1.15;
	padding: 0.48rem 0.7rem;
	white-space: nowrap;
}

.sigma-inline-lead-cta a:hover,
.sigma-inline-lead-cta a:focus {
	background: #0a7a55;
	color: #fff;
}

.sigma-lesson-content h2,
.sigma-lesson-content h3 {
	border-left: 5px solid var(--sigma-blue);
	padding-left: 0.8rem;
}

.sigma-lesson-content h3 {
	border-left-color: var(--sigma-green);
}

.sigma-lesson-content h4 {
	color: var(--sigma-red);
}

.sigma-lesson-content .sigma-grade-back {
	margin-top: 2rem;
}

.sigma-lesson-content mjx-container {
	overflow-x: auto;
	overflow-y: hidden;
}

.sigma-video-placeholder {
	align-items: center;
	background: linear-gradient(135deg, #f7fbff, #fff);
	display: flex;
	gap: 0.85rem;
	margin: 1.25rem 0;
	padding: 1rem;
}

.sigma-video-placeholder::before {
	align-items: center;
	background: var(--sigma-red);
	border-radius: 50%;
	color: #fff;
	content: "▶";
	display: inline-flex;
	flex: 0 0 auto;
	font-size: 0.85rem;
	height: 2rem;
	justify-content: center;
	width: 2rem;
}

.sigma-callout {
	border-left: 5px solid var(--sigma-gold);
	padding: 1rem;
}

.sigma-objectives {
	background: var(--sigma-soft);
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	padding: 1rem 1.25rem;
}

.sigma-objectives h2,
.sigma-lesson-content .sigma-objectives h2 {
	border-left-color: var(--sigma-green);
	margin-top: 0;
}

.sigma-example-box,
.sigma-exercise-box,
.sigma-correction-box {
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	margin: 1rem 0;
	padding: 1rem;
}

.sigma-example-box {
	background: #f8fbff;
	border-left: 5px solid var(--sigma-blue);
}

.sigma-exercise-box {
	background: #fffdfa;
	border-left: 5px solid var(--sigma-gold);
}

.sigma-correction-box {
	background: #f7fff9;
	border-left: 5px solid var(--sigma-green);
}

.sigma-math-display {
	background: transparent;
	border-radius: 0;
	color: var(--sigma-ink);
	font-family: "Times New Roman", "Cambria Math", serif;
	font-size: 1.2rem;
	overflow-x: auto;
	padding: 0.35rem 0;
}

.sigma-footer {
	background: var(--sigma-ink);
	color: rgba(255, 255, 255, 0.84);
}

.sigma-footer a,
.sigma-footer .sigma-brand {
	color: #fff;
}

.sigma-home-hero {
	padding: 4rem 1.25rem 2rem;
}

.sigma-home-hero__inner,
.sigma-grade-section,
.sigma-home-band {
	margin: 0 auto;
	max-width: 1180px;
}

.sigma-home-hero__inner {
	align-items: center;
	display: grid;
	gap: 2rem;
	grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}

.sigma-home-hero h1 {
	font-size: clamp(2.25rem, 5vw, 4.6rem);
	line-height: 1;
	margin: 0 0 1rem;
	max-width: 820px;
}

.sigma-home-hero p {
	color: var(--sigma-muted);
	font-size: 1.14rem;
	max-width: 720px;
}

.sigma-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 1.5rem;
}

.sigma-button {
	align-items: center;
	background: var(--sigma-blue);
	border: 1px solid var(--sigma-blue);
	border-radius: 8px;
	color: #fff;
	display: inline-flex;
	font-weight: 750;
	justify-content: center;
	line-height: 1.2;
	min-height: 2.75rem;
	padding: 0.7rem 1rem;
}

.sigma-button:hover,
.sigma-button:focus {
	background: #1757ba;
	color: #fff;
}

.sigma-button--light {
	background: #fff;
	border-color: var(--sigma-line);
	color: var(--sigma-ink);
}

.sigma-button--light:hover,
.sigma-button--light:focus {
	background: var(--sigma-soft);
	color: var(--sigma-blue);
}

.sigma-equation-board {
	background:
		linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
		linear-gradient(0deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
		var(--sigma-ink);
	background-size: 28px 28px;
	border-radius: 8px;
	box-shadow: 0 18px 50px rgba(22, 32, 51, 0.18);
	color: #fff;
	font-family: "Times New Roman", "Cambria Math", serif;
	padding: 1.5rem;
}

.sigma-equation-board p {
	color: #fff;
	font-size: 1.35rem;
	margin: 0.8rem 0;
}

.sigma-grade-section {
	padding: 2rem 1.25rem 4rem;
}

.sigma-section-heading {
	max-width: 720px;
}

.sigma-section-heading h2 {
	font-size: 2rem;
	margin: 0 0 0.5rem;
}

.sigma-section-heading p {
	color: var(--sigma-muted);
}

.sigma-grade-grid {
	display: grid;
	gap: 1rem;
	grid-template-columns: repeat(5, minmax(0, 1fr));
	margin-top: 1.5rem;
}

.sigma-grade-content .sigma-grade-grid {
	grid-template-columns: 1fr;
}

.sigma-grade-card {
	background: #fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	color: var(--sigma-ink);
	display: grid;
	gap: 0.35rem 1rem;
	grid-template-columns: 3rem minmax(0, 1fr);
	min-height: 0;
	padding: 1.1rem;
	position: relative;
}

.sigma-grade-card::before {
	background: var(--sigma-blue);
	border-radius: 8px 8px 0 0;
	content: "";
	height: 4px;
	left: -1px;
	position: absolute;
	right: -1px;
	top: -1px;
}

.sigma-grade-card:hover,
.sigma-grade-card:focus {
	box-shadow: 0 14px 34px rgba(22, 32, 51, 0.1);
	transform: translateY(-2px);
}

.sigma-grade-card span {
	align-items: center;
	background: var(--sigma-soft);
	border-radius: 8px;
	color: var(--sigma-muted);
	display: inline-flex;
	font-size: 0.8rem;
	font-weight: 800;
	height: 2.5rem;
	justify-content: center;
	width: 2.5rem;
}

.sigma-grade-card h3,
.sigma-grade-card strong {
	color: var(--sigma-ink);
	display: block;
	font-size: 1.12rem;
	font-weight: 800;
	line-height: 1.25;
	margin: 0;
}

.sigma-grade-card p,
.sigma-grade-card em {
	color: var(--sigma-muted);
	display: block;
	font-size: 0.95rem;
	font-style: normal;
	grid-column: 2;
	line-height: 1.55;
	margin: 0;
}

.sigma-grade-card--green::before {
	background: var(--sigma-green);
}

.sigma-grade-card--red::before {
	background: var(--sigma-red);
}

.sigma-grade-card--gold::before {
	background: var(--sigma-gold);
}

.sigma-grade-card--ink::before {
	background: var(--sigma-ink);
}

.sigma-home-band {
	align-items: center;
	background: #fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	display: flex;
	gap: 1.5rem;
	justify-content: space-between;
	margin-bottom: 4rem;
	padding: 1.25rem;
}

.sigma-home-band h2 {
	font-size: 1.5rem;
	margin: 0 0 0.35rem;
}

.sigma-home-band p {
	color: var(--sigma-muted);
	margin: 0;
	max-width: 760px;
}

.sigma-page-title {
	background:
		linear-gradient(135deg, rgba(31, 111, 235, 0.13), rgba(15, 159, 110, 0.08)),
		#fff;
	border: 1px solid var(--sigma-line);
	border-left: 7px solid var(--sigma-blue);
	border-radius: 8px;
	box-shadow: 0 18px 42px rgba(22, 32, 51, 0.08);
	margin-bottom: 1.5rem;
	overflow: hidden;
	padding: clamp(1.25rem, 4vw, 2rem);
	position: relative;
}

.sigma-page-title::before {
	color: rgba(31, 111, 235, 0.12);
	content: "Σ";
	font-family: "Times New Roman", "Cambria Math", serif;
	font-size: clamp(4.5rem, 12vw, 8rem);
	font-weight: 800;
	line-height: 1;
	position: absolute;
	right: 1rem;
	top: 0.2rem;
}

.sigma-page-title::after {
	background: linear-gradient(90deg, var(--sigma-blue), var(--sigma-green), var(--sigma-gold));
	border-radius: 999px;
	bottom: 0;
	content: "";
	height: 4px;
	left: 1.25rem;
	position: absolute;
	right: 1.25rem;
}

.sigma-page-title h1 {
	color: var(--sigma-ink);
	font-size: clamp(2.15rem, 5vw, 4rem);
	letter-spacing: 0;
	line-height: 1.02;
	margin: 0 0 0.85rem;
	max-width: 820px;
	position: relative;
	z-index: 1;
}

.sigma-page-title h1::before {
	color: var(--sigma-green);
	content: "Chapitre";
	display: block;
	font-size: 0.82rem;
	font-weight: 850;
	letter-spacing: 0;
	line-height: 1;
	margin-bottom: 0.65rem;
	text-transform: uppercase;
}

.sigma-page-title .wp-block-post-excerpt,
.sigma-page-title .wp-block-post-excerpt__excerpt {
	color: var(--sigma-muted);
	font-size: 1.05rem;
	margin: 0;
	max-width: 760px;
	position: relative;
	z-index: 1;
}

.sigma-grade-page .sigma-page-title h1::before {
	content: "Niveau";
}

.sigma-grade-layout {
	align-items: start;
	display: grid;
	gap: 1.5rem;
	grid-template-columns: minmax(0, 1fr) 300px;
}

.sigma-grade-content,
.sigma-sidebar-box {
	background: #fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
}

.sigma-grade-content {
	padding: clamp(1rem, 3vw, 2rem);
}

.sigma-grade-content h2 {
	border-left: 5px solid var(--sigma-blue);
	padding-left: 0.8rem;
}

.sigma-sidebar {
	display: grid;
	gap: 1rem;
	position: sticky;
	top: 5rem;
}

.sigma-sidebar-box {
	padding: 1rem;
}

.sigma-sidebar-box h2 {
	font-size: 1.05rem;
	margin: 0 0 0.65rem;
}

.sigma-sidebar-box p {
	color: var(--sigma-muted);
	font-size: 0.94rem;
}

.sigma-tutoring-box {
	border-top: 4px solid var(--sigma-green);
}

.sigma-tutoring-box .sigma-button {
	margin-top: 0.5rem;
	width: 100%;
}

.sigma-lesson-sidebar {
	align-self: start;
}

.sigma-side-nav {
	display: grid;
	gap: 0.2rem;
}

.sigma-side-nav a {
	border-radius: 7px;
	color: var(--sigma-muted);
	font-weight: 650;
	padding: 0.45rem 0.55rem;
}

.sigma-side-nav a:hover,
.sigma-side-nav a:focus {
	background: var(--sigma-soft);
	color: var(--sigma-blue);
}

.sigma-lesson-list {
	display: grid;
	gap: 0.75rem;
	margin-top: 1rem;
}

.sigma-semester {
	margin-top: 1.35rem;
}

.sigma-semester-title {
	align-items: center;
	background:
		linear-gradient(135deg, rgba(31, 111, 235, 0.12), rgba(15, 159, 110, 0.08)),
		#fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	display: flex;
	gap: 0.8rem;
	margin-bottom: 0.85rem;
	padding: 0.8rem 1rem;
}

.sigma-semester-title span {
	align-items: center;
	background: var(--sigma-blue);
	border-radius: 8px;
	color: #fff;
	display: inline-flex;
	font-weight: 850;
	height: 2.4rem;
	justify-content: center;
	width: 2.8rem;
}

.sigma-semester-title strong {
	color: var(--sigma-ink);
	font-size: 1.16rem;
	font-weight: 850;
}

.sigma-semester--2 .sigma-semester-title {
	background:
		linear-gradient(135deg, rgba(15, 159, 110, 0.12), rgba(217, 144, 24, 0.08)),
		#fff;
}

.sigma-semester--2 .sigma-semester-title span {
	background: var(--sigma-green);
}

.sigma-lesson-item {
	align-items: center;
	background: #fff;
	border: 1px solid var(--sigma-line);
	border-radius: 8px;
	color: var(--sigma-ink);
	display: grid;
	gap: 0.25rem 0.85rem;
	grid-template-columns: 2.5rem minmax(0, 1fr);
	padding: 0.85rem;
}

.sigma-lesson-item:hover,
.sigma-lesson-item:focus {
	border-color: rgba(31, 111, 235, 0.45);
	box-shadow: 0 10px 24px rgba(22, 32, 51, 0.08);
}

.sigma-lesson-item span {
	align-items: center;
	background: var(--sigma-soft);
	border-radius: 8px;
	color: var(--sigma-blue);
	display: inline-flex;
	font-weight: 800;
	height: 2.4rem;
	justify-content: center;
	width: 2.4rem;
}

.sigma-lesson-item strong {
	font-size: 1rem;
}

.sigma-lesson-item em {
	color: var(--sigma-muted);
	font-size: 0.9rem;
	font-style: normal;
	grid-column: 2;
}

@media (max-width: 860px) {
	.sigma-footer__inner,
	.sigma-hero__grid,
	.sigma-home-hero__inner,
	.sigma-lesson-layout,
	.sigma-grade-layout,
	.sigma-home-band {
		display: block;
	}

	.sigma-nav {
		display: none;
	}

	.sigma-header__inner {
		align-items: center;
		display: flex;
		gap: 0.75rem;
		justify-content: space-between;
		padding: 0.7rem 1rem;
	}

	.sigma-brand {
		min-width: 0;
	}

	.sigma-brand span:last-child {
		overflow: hidden;
		text-overflow: ellipsis;
		white-space: nowrap;
	}

	.sigma-lesson-page .sigma-main,
	.page-template-lesson .sigma-main {
		width: 96%;
	}

	.sigma-inline-lead-cta {
		align-items: stretch;
		display: grid;
		gap: 0.55rem;
	}

	.sigma-inline-lead-cta a {
		width: 100%;
	}

	.sigma-menu-toggle {
		display: inline-flex;
		flex: 0 0 auto;
	}

	body.sigma-drawer-open {
		overflow: hidden;
	}

	.sigma-drawer-overlay {
		background: rgba(22, 32, 51, 0.42);
		display: block;
		inset: 0;
		opacity: 0;
		pointer-events: none;
		position: fixed;
		transition: opacity 180ms ease;
		z-index: 1000;
	}

	body.sigma-drawer-open .sigma-drawer-overlay {
		opacity: 1;
		pointer-events: auto;
	}

	.sigma-mobile-drawer {
		background: #fff;
		border-left: 1px solid var(--sigma-line);
		box-shadow: -18px 0 45px rgba(22, 32, 51, 0.18);
		display: flex;
		flex-direction: column;
		gap: 1rem;
		inset: 0 0 0 auto;
		max-width: 24rem;
		overflow-y: auto;
		padding: 1rem;
		position: fixed;
		transform: translateX(100%);
		transition: transform 210ms ease;
		width: min(88vw, 24rem);
		z-index: 1001;
	}

	body.sigma-drawer-open .sigma-mobile-drawer {
		transform: translateX(0);
	}

	.sigma-mobile-drawer__top {
		align-items: center;
		display: flex;
		gap: 0.75rem;
		justify-content: space-between;
		padding-bottom: 0.65rem;
	}

	.sigma-menu-close {
		display: inline-flex;
		flex: 0 0 auto;
	}

	.sigma-drawer-nav {
		display: grid;
		gap: 0.4rem;
	}

	.sigma-drawer-nav a {
		border: 1px solid var(--sigma-line);
		border-radius: 8px;
		color: var(--sigma-ink);
		font-weight: 800;
		padding: 0.85rem 0.9rem;
	}

	.sigma-drawer-nav a:hover,
	.sigma-drawer-nav a:focus {
		background: var(--sigma-soft);
		border-color: rgba(31, 111, 235, 0.35);
		color: var(--sigma-blue);
	}

	.sigma-drawer-cta {
		background:
			linear-gradient(135deg, rgba(31, 111, 235, 0.09), rgba(15, 159, 110, 0.08)),
			#fff;
		border: 1px solid var(--sigma-line);
		border-top: 4px solid var(--sigma-green);
		border-radius: 8px;
		margin-top: auto;
		padding: 1rem;
	}

	.sigma-drawer-cta strong {
		display: block;
		font-size: 1.05rem;
		margin-bottom: 0.75rem;
	}

	.sigma-drawer-cta .sigma-button {
		margin-top: 0.55rem;
		width: 100%;
	}

	.sigma-hero {
		padding-top: 3rem;
	}

	.sigma-hero__panel {
		margin-top: 1rem;
	}

	.sigma-course-grid {
		grid-template-columns: 1fr;
	}

	.sigma-grade-grid {
		grid-template-columns: 1fr;
	}

	.sigma-equation-board,
	.sigma-sidebar,
	.sigma-lesson-map {
		margin-bottom: 1rem;
		position: static;
	}

	.sigma-lesson-layout > .sigma-lesson-content,
	.sigma-lesson-layout > .sigma-lesson-sidebar {
		order: initial;
	}

	.sigma-home-band .sigma-button {
		margin-top: 1rem;
		width: 100%;
	}
}