:root {
    --color-bg: #fff8f0;
    --color-surface: #ffffff;
    --color-primary: #b83232;
    --color-primary-dark: #8a2424;
    --color-accent: #e08a2a;
    --color-text: #2b2b2b;
    --color-muted: #5a5a5a;
    --color-border: #ecd9c4;
    --shadow-soft: 0 4px 16px rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --font-base: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    --font-heading: Georgia, "Times New Roman", serif;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    padding: 1.5rem 1.25rem 3rem;
    background: linear-gradient(180deg, var(--color-bg) 0%, #fdecd5 100%);
    color: var(--color-text);
    font-family: var(--font-base);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.page {
    max-width: 880px;
    margin: 0 auto;
}
/* ----- Titre principal ----- */
h1.main-heading {
	font-family: var(--font-heading);
	font-size: clamp(1.2rem, 4vw, 1.73rem);
	text-align: center;
	color: var(--color-primary);
	margin: 0 0 1.25rem;
	letter-spacing: 0.5px;
}

h1.main-heading::after {
	content: "";
	display: block;
	width: 80px;
	height: 4px;
	margin: 0.6rem auto 0;
	background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
	border-radius: 2px;
}
.site-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1rem 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.site-header__home {
    display: block;
    flex-shrink: 0;
    border-radius: 50%;
}

.site-header__logo {
    display: block;
    width: 100px;
    height: 100px;
    border: 3px solid var(--color-primary);
    border-radius: 50%;
    background: #f3e3d0;
    object-fit: cover;
}

.site-header__title,
.site-header__subtitle {
    margin: 0;
}

.site-header__title {
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
    font-size: clamp(1.35rem, 4vw, 1.85rem);
    font-weight: 700;
    line-height: 1.2;
}

.site-header__subtitle {
    margin-top: 0.35rem;
    color: var(--color-primary-dark);
    font-family: var(--font-heading); /* Georgia */
    font-size: 1.1rem;
    font-style: italic;
    font-weight: 600;
}

.site-header__text {
    flex: 1;
}

.site-header__link {
    display: flex;
    flex: 0 0 100px;
    width: 100px;
    height: 100px;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    color: var(--color-primary-dark);
    font-size: 0.7rem;
    text-align: center;
    text-decoration: none;
}

.site-header__link:hover {
    color: var(--color-primary);
}

.card {
    padding: clamp(1.25rem, 4vw, 2.5rem);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

.eyebrow {
    margin: 0 0 0.5rem;
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    margin: 0 0 1.25rem;
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 5vw, 2.6rem);
    line-height: 1.2;
}

.thank-you {
    padding: 1rem 1.25rem;
    background: #fff3e0;
    border-left: 4px solid var(--color-accent);
    border-radius: 6px;
    font-size: 1.1rem;
}

a {
    color: var(--color-primary-dark);
}

a:hover {
    color: var(--color-primary);
}

.back-link {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.65rem 1rem;
    background: var(--color-primary);
    border-radius: 8px;
    color: #fff;
    font-weight: 600;
    text-decoration: none;
}

.back-link:hover {
    background: var(--color-primary-dark);
    color: #fff;
}

.site-footer {
    margin-top: 2rem;
    color: var(--color-muted);
    font-size: 0.85rem;
    text-align: center;
}

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

@media (max-width: 520px) {

	.site-header {
		flex-direction: row;
		align-items: center;
		gap: 0.5rem;
		padding: 0.75rem;
	}

	.site-header__logo {
		width: 64px;
		height: 64px;
	}

	.site-header__link {
		flex-basis: 64px;
		width: 64px;
		height: 64px;
		font-size: 0.6rem;
	}	

	.lesson-row {
		display: flex;
		align-items: center;
		flex-wrap: wrap;
		gap: 0.4rem 0.75rem;
	}	

}
/* ----- Onglets des leçons ----- */
.lesson-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin: 0 0 1rem;
}

.lesson-tab {
	padding: 0.55rem 0.9rem;
	border: 1px solid var(--color-border);
	border-radius: 8px;
	background: #fdf4e7;
	color: var(--color-primary-dark);
	font: inherit;
	font-weight: 600;
	cursor: pointer;
}

.lesson-tab[aria-selected="true"] {
	background: var(--color-primary);
	border-color: var(--color-primary);
	color: #fff;
}

.lesson-panel[hidden] {
	display: none;
}

.lesson-description {
	margin: 0.35rem 0 0;
	color: var(--color-muted);
	font-size: 0.9rem;
}			

/* ----- Liste numérotée des leçons ----- */
h2.lessons-heading {
	font-family: var(--font-heading);
	font-size: 1.15rem;
	color: var(--color-primary-dark);
	margin: 0 0 0.85rem;
}

ol.lessons {
	list-style: none;
	counter-reset: lesson-counter;
	padding: 0;
	margin: 0;
}

ol.lessons > li {
	padding: 0.65rem 0.85rem;
	margin-bottom: 0.5rem;
	background-color: #fdf4e7;
	border: 1px solid var(--color-border);
	border-radius: 8px;
}

ol.lessons > li:hover {
	transform: translateX(2px);
	box-shadow: 0 2px 8px rgba(184, 50, 50, 0.12);
}

ol.lessons > li::before {
	content: counter(lesson-counter);
	position: absolute;
	left: 0.85rem;
	top: 50%;
	transform: translateY(-50%);
	width: 2rem;
	height: 2rem;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--color-primary);
	color: #fff;
	font-weight: 700;
	border-radius: 50%;
	font-size: 0.95rem;
}

ol.lessons .lesson-title {
	font-weight: 600;
	color: var(--color-text);
}

ol.lessons .lesson-duration {
	display: inline-block;
	padding: 0.1rem 0.55rem;
	background-color: var(--color-accent);
	color: #fff;
	border-radius: 999px;
	font-size: 0.8rem;
	font-weight: 600;
	white-space: nowrap;
}

/* ----- Bannière "en construction" ----- */
/* ----- Cartouche "en construction" et progression ----- */
.construction-banner {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    background-color: #fff3e0;
    color: var(--color-primary-dark);
    border-left: 4px solid var(--color-accent);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin: 0 0 1.5rem;
    font-weight: 600;
}

.construction-banner__message::before {
    content: "🚧";
    margin-right: 0.6rem;
}

.construction-progress {
    display: grid;
    grid-template-columns: repeat(30, minmax(0, 1fr));
    gap: 4px;
    width: 100%;
}

.construction-progress__segment {
    height: 12px;
    border: 1px solid var(--color-primary);
    border-radius: 4px;
    background-color: transparent;
}

.construction-progress__segment.is-filled {
    background-color: var(--color-primary);
}

.construction-progress__segment:nth-child(1),
.construction-progress__segment:nth-child(11),
.construction-progress__segment:nth-child(21) {
    border-color: blue;
}

a.construction-progress__segment {
    display: block;
    text-decoration: none;
}

a.construction-progress__segment:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* Galerie en décalé */
.gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 32px 0;
    align-items: start;
}

.gallery__title {
    margin: 1rem 0 0;
	padding-left: 10px;
}

.gallery__item {
    margin: 0;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
    border: 6px solid #fff;
    background: #fff;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.gallery__item img {
    display: block;
    width: 100%;
    height: auto;
}

/* Décalage vertical + légère rotation façon "photos posées" */
.gallery__item--1 { transform: rotate(-2deg); }
.gallery__item--2 { transform: translateY(50px) rotate(2deg); }
.gallery__item--3 { transform: translateY(-10px) rotate(1.5deg); }
.gallery__item--4 { transform: translateY(40px) rotate(-1.5deg); }

.gallery__item:hover {
    transform: scale(1.04) rotate(0deg);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
    z-index: 2;
    position: relative;
}

/* Espace pour compenser le décalage du bas */
.gallery { padding-bottom: 60px; }

/* Mobile : une seule colonne, décalage léger */
@media (max-width: 600px) {
    .gallery { grid-template-columns: 1fr; }
    .gallery__item--2,
    .gallery__item--4 { transform: translateX(12px) rotate(1.5deg); }
    .gallery__item--1,
    .gallery__item--3 { transform: translateX(-12px) rotate(-1.5deg); }
}