main#livret {
    --livret-font-heading: 'Spectral', 'Playfair Display', 'Lilita One', serif;
    --livret-font-body: 'DM Sans', 'Noto Sans Display', sans-serif;
    --livret-rose: #F25764;
    --livret-jaune: #FAD689;
    --livret-vert: #1B5F4B;
    --livret-creme: #FFF9F1;
    --livret-encre: #211C1C;
    background: var(--livret-creme);
    color: var(--livret-encre);
    font-family: var(--livret-font-body);
    padding: clamp(2rem, 4vw, 3.5rem) clamp(1.25rem, 4vw, 4rem);
}

main#livret a {
    color: var(--livret-vert);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-decoration-color: color-mix(in srgb, var(--livret-rose) 40%, transparent);
}

main#livret a:hover,
main#livret a:focus {
    color: var(--livret-rose);
    text-decoration-color: color-mix(in srgb, var(--livret-rose) 70%, transparent);
}

.livret-app {
    display: flex;
    flex-direction: column;
    gap: clamp(2rem, 4vw, 3rem);
    position: relative;
}

.livret-app__hero {
    background: linear-gradient(135deg, color-mix(in srgb, var(--livret-jaune) 65%, white) 0%, color-mix(in srgb, var(--livret-rose) 20%, var(--livret-creme)) 100%);
    border: 2px solid color-mix(in srgb, var(--livret-rose) 25%, transparent);
    border-radius: 32px;
    padding: clamp(2rem, 5vw, 3.5rem);
    text-align: center;
    box-shadow: 0 24px 48px -30px color-mix(in srgb, var(--livret-rose) 60%, transparent);
}

.livret-app__baseline {
    font-family: var(--livret-font-heading);
    font-size: clamp(0.95rem, 1vw + 0.5rem, 1.25rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--livret-vert);
    margin-bottom: 0.75rem;
}

.livret-app__hero h1 {
    font-family: var(--livret-font-heading);
    font-size: clamp(2rem, 6vw, 3rem);
    margin-bottom: 0.75rem;
    color: var(--livret-rose);
}

.livret-app__intro {
    font-size: clamp(1rem, 1vw + 0.75rem, 1.3rem);
    max-width: 40rem;
    margin: 0 auto 1.5rem;
}

.livret-app__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.85rem 1.8rem;
    border-radius: 999px;
    background: var(--livret-vert);
    color: white;
    text-decoration: none;
    transition: transform 150ms ease, box-shadow 150ms ease;
    box-shadow: 0 12px 20px -12px color-mix(in srgb, var(--livret-vert) 70%, transparent);
}

.livret-app__cta:hover,
.livret-app__cta:focus {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px -12px color-mix(in srgb, var(--livret-vert) 65%, transparent);
}

.livret-app__notice {
    background: color-mix(in srgb, var(--livret-rose) 12%, white);
    border-left: 4px solid var(--livret-rose);
    padding: 1rem 1.25rem;
    border-radius: 16px;
    margin: 0;
}

.livret-app__layout {
    display: grid;
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 2.75rem);
    align-items: start;
}

.livret-menu {
    position: sticky;
    top: clamp(1rem, 4vw, 2rem);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: white;
    border: 1px solid color-mix(in srgb, var(--livret-rose) 15%, transparent);
    border-radius: 24px;
    padding: 1.5rem;
    box-shadow: 0 20px 40px -30px color-mix(in srgb, var(--livret-encre) 35%, transparent);
}

.livret-menu__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.livret-menu__title {
    font-family: var(--livret-font-heading);
    font-size: 1.4rem;
    margin: 0;
    color: var(--livret-rose);
}

.livret-menu__toggle {
    display: none;
    background: var(--livret-vert);
    color: white;
    border: none;
    border-radius: 999px;
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    cursor: pointer;
}

.livret-menu__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.livret-menu__item {
    border-radius: 18px;
    border: 1px solid transparent;
    transition: border-color 150ms ease, transform 150ms ease;
}

.livret-menu__item.is-active {
    border-color: color-mix(in srgb, var(--livret-rose) 40%, transparent);
    transform: translateY(-2px);
}

.livret-menu__link {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 0.75rem;
    align-items: center;
    text-decoration: none;
    color: inherit;
    padding: 0.75rem;
    border-radius: inherit;
    background: color-mix(in srgb, var(--livret-jaune) 20%, white);
}

.livret-menu__link:hover,
.livret-menu__link:focus {
    background: color-mix(in srgb, var(--livret-rose) 12%, white);
}

.livret-menu__media {
    width: 72px;
    aspect-ratio: 1 / 1;
    border-radius: 14px;
    overflow: hidden;
    display: inline-flex;
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--livret-encre) 15%, transparent);
}

.livret-menu__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.livret-menu__label {
    font-weight: 600;
    font-size: 1rem;
}

.livret-menu__summary {
    font-size: 0.85rem;
    color: color-mix(in srgb, var(--livret-encre) 70%, white 30%);
}

.livret-page {
    background: white;
    border-radius: 32px;
    border: 1px solid color-mix(in srgb, var(--livret-rose) 12%, transparent);
    padding: clamp(1.5rem, 4vw, 3rem);
    box-shadow: 0 24px 48px -32px color-mix(in srgb, var(--livret-encre) 45%, transparent);
}

.livret-page__header {
    margin-bottom: 1.75rem;
}

.livret-page__kicker {
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--livret-encre) 60%, var(--livret-rose) 20%);
    margin: 0 0 0.5rem;
}

.livret-page__title {
    font-family: var(--livret-font-heading);
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    color: var(--livret-rose);
    margin: 0 0 0.75rem;
}

.livret-page__lead {
    font-size: clamp(1rem, 1vw + 0.75rem, 1.25rem);
    margin: 0;
}

.livret-page__content {
    display: grid;
    gap: 1.25rem;
    line-height: 1.65;
}

.livret-page__content blockquote {
    border-left: 6px solid var(--livret-rose);
    background: color-mix(in srgb, var(--livret-jaune) 35%, white);
    padding: 1rem 1.5rem;
    border-radius: 18px;
    font-style: italic;
    margin: 0;
}

.livret-page__content article {
    background: color-mix(in srgb, var(--livret-jaune) 18%, white);
    border-radius: 18px;
    padding: 1rem 1.25rem;
    border: 1px solid color-mix(in srgb, var(--livret-rose) 12%, transparent);
}

.livret-page__content article h3 {
    font-family: var(--livret-font-heading);
    color: var(--livret-vert);
    margin-top: 0;
}

.livret-page__content ul,
.livret-page__content ol {
    padding-left: 1.2rem;
}

.livret-page__content li + li {
    margin-top: 0.35rem;
}

.livret-page__content dl {
    display: grid;
    gap: 0.85rem;
}

.livret-page__content dl div {
    border-left: 4px solid color-mix(in srgb, var(--livret-vert) 55%, var(--livret-rose) 15%);
    padding-left: 0.75rem;
}

.livret-page__figure {
    margin: clamp(2rem, 4vw, 3rem) 0 0;
    display: grid;
    gap: 0.75rem;
}

.livret-page__figure img {
    width: 100%;
    border-radius: 24px;
    border: 1px solid color-mix(in srgb, var(--livret-rose) 18%, transparent);
}

.livret-page__figure figcaption {
    font-size: 0.9rem;
    color: color-mix(in srgb, var(--livret-encre) 75%, white 25%);
}

.livret-resume {
    list-style: '✶ ';
    padding-left: 1.5rem;
}

.livret-resume li + li {
    margin-top: 0.35rem;
}

@media (max-width: 1080px) {
    .livret-app__layout {
        grid-template-columns: 1fr;
    }

    .livret-menu {
        position: static;
        border-radius: 20px;
        padding: 1rem;
    }

    .livret-menu__toggle {
        display: inline-flex;
    }

    .livret-menu__list {
        display: none;
    }

    .livret-menu.is-open .livret-menu__list {
        display: flex;
    }
}

@media (max-width: 720px) {
    main#livret {
        padding: clamp(1.5rem, 4vw, 2rem) clamp(1rem, 4vw, 1.5rem);
    }

    .livret-menu__link {
        grid-template-columns: 56px minmax(0, 1fr);
        gap: 0.5rem;
    }

    .livret-menu__media {
        width: 56px;
        border-radius: 12px;
    }

    .livret-page {
        padding: clamp(1.25rem, 4vw, 2rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}