:root {
    --tuto-bg: #f7f6f3;
    --tuto-panel: rgba(255,255,255,0.82);
    --tuto-border: #e6e2d9;
    --tuto-sidebar: #f4f1eb;
    --tuto-active: rgba(12, 36, 168, 0.10);
    --tuto-active-strong: #0c24a8;
    --tuto-shadow: 0 18px 40px rgba(0, 0, 0, 0.04);
}

body {
    background: var(--tuto-bg);
}

.tuto-page {
    min-height: 100vh;
    background: linear-gradient(180deg, #fafaf8 0%, #f3f1ee 100%);
}

.tuto-layout {
    position: relative;
    min-height: 100vh;
    width: 100%;
}

.tuto-sidebar {
    position: fixed;
    left: 1.25rem;
    top: 1.25rem;
    bottom: 1.25rem;
    width: 375px;
    background: var(--tuto-sidebar);
    border: 1px solid var(--tuto-border);
    border-radius: 22px;
    box-shadow: var(--tuto-shadow);
    padding: 1.5rem 1rem 1rem;
    overflow-y: auto;
    z-index: 2;
}

.tuto-main {
    margin-left: 400px;
    padding: 2rem 2rem 4rem;
    min-width: 0;
    display: grid;
    gap: 1.4rem;
}

@media (max-width: 980px) {
    .tuto-sidebar {
        position: relative;
        left: auto;
        top: auto;
        bottom: auto;
        width: auto;
        margin: 1rem;
    }

    .tuto-main {
        margin-left: 0;
        padding: 0 1rem 2rem;
    }
}

.tuto-brand {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.25rem;
    line-height: 1;
    letter-spacing: -0.04em;
    color: #2d2d2d;
    margin-bottom: 1.2rem;
    padding: 0 0.5rem;
}

.tuto-sommaire {
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #707070;
    font-weight: 600;
    padding: 0 0.5rem 0.8rem;
}

.tuto-nav {
    position: static;
    top: auto;
    width: auto;
    padding: 0;
    z-index: auto;
    background: none;
    backdrop-filter: none;
    border-bottom: none;
    animation: none;
    display: grid;
    justify-content: normal;
    align-items: stretch;
    gap: 0.5rem;
}

.tuto-nav-group {
    display: grid;
    gap: 0.2rem;
}

.tuto-nav-link {
	display: block;
	text-decoration: none;
	color: #1a1a1a;
	padding: 0.1rem 0.2rem;
	border-radius: 12px;
	transition: all 0.2s ease;
	border: 1px solid transparent;
	font-weight: 500;
}

.tuto-nav-sub {
    display: grid;
    gap: 0.15rem;
    padding-left: 0.5rem;
    margin-top: 0.15rem;
}

.tuto-nav-sub a {
    display: block;
    font-size: 0.92rem;
    color: #707070;
    text-decoration: none;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    transition: all 0.2s ease;
}

.tuto-nav-link:hover,
.tuto-nav-sub a:hover,
.tuto-nav-link.active,
.tuto-nav-sub a.active {
    background: var(--tuto-active);
    border-color: rgba(12, 36, 168, 0.25);
    color: var(--tuto-active-strong);
}

.tuto-main {
    display: grid;
    gap: 1.4rem;
}

.tuto-part {
    background: var(--tuto-panel);
    border: 1px solid var(--tuto-border);
    border-radius: 24px;
    box-shadow: var(--tuto-shadow);
    padding: 2rem 2.2rem;
}

.tuto-part h2 {
   /* font-family: 'Cormorant Garamond', serif; */
    font-size: clamp(1.2rem, 3vw, 2.3rem);
    letter-spacing: -0.04em;
    color: #2d2d2d;
    margin-bottom: 1rem;
}

.tuto-part h3 {
    /* font-family: 'Cormorant Garamond', serif; */
    font-size: clamp(1.2rem, 2vw, 2rem);
    letter-spacing: -0.02em;
    color: #1a1a1a;
    margin: 1.6rem 0 0.75rem;
}

.tuto-part p,
.tuto-part li {
    color: #707070;
    font-size: 1.03rem;
    line-height: 1.7;
}

.tuto-part p + p {
    margin-top: 1rem;
}

.tuto-part ul {
	padding-left: 2rem;
	margin: 0.75rem;
    list-style: none;
}

.tuto-part ul li {
    position: relative;
}

.tuto-part ul li::before {
    content: "✓";
    position: absolute;
    left: -1.2rem;
    color: var(--tuto-active-strong);
    font-weight: 600;
}

.tuto-part li + li {
    margin-top: 0.55rem;
}

.tuto-figure {
    margin-top: 1.5rem;
    background: linear-gradient(180deg, #f5f4f1 0%, #eceae4 100%);
    border: 1px solid var(--tuto-border);
    border-radius: 18px;
    padding: 1rem;
}

.tuto-figure img {
    display: block;
    width: 100%;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.06);
    background: #ffffff;
}

figcaption {
    margin-top: 0.7rem;
    color: #707070;
    font-size: 0.92rem;
    text-align: center;
    margin-bottom: 2rem;
}

.tuto-figure-media {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

 

.tuto-next-wrap {
    display: flex;
    justify-content: flex-end;
}

.tuto-next-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    text-decoration: none;
    color: #ffffff;
    background: var(--tuto-active-strong);
    border: 1px solid var(--tuto-active-strong);
    border-radius: 999px;
    padding: 0.68rem 1.05rem;
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.tuto-next-btn::after {
    content: "→";
    font-size: 1rem;
    line-height: 1;
}

.tuto-next-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(12, 36, 168, 0.2);
    background: #1a35bf;
}

@media (max-width: 980px) {
    .tuto-layout {
        grid-template-columns: 1fr;
    }

    .tuto-sidebar {
        position: static;
    }

    .tuto-next-btn {
        width: 100%;
        justify-content: center;
    }
}