@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,100..1000&display=swap');

/* Charte sacha-martin.fr : les quatre couleurs, et rien d'autre */
:root {
    --color-cream: #fff7de;
    --color-green: #208865;
    --color-lavender: #d1a7ee;
    --color-navy: #201e4b;

    --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
    --shadow-pill: 0 4px 10px rgba(0, 0, 0, 0.2);
    --shadow-halo: 0 2px 10px var(--color-lavender);
    --shadow-lift: 0 18px 40px color-mix(in srgb, var(--color-lavender) 85%, transparent);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
}

body {
    display: grid;
    justify-items: center;
    align-content: start;
    min-height: 100vh;
    min-height: 100svh;
    padding: 72px 24px 96px;
    overflow-x: hidden;
    color: var(--color-navy);
    background: var(--color-cream);
    font-family: "DM Sans", sans-serif;
    counter-reset: item;
}

body > * {
    width: min(880px, 100%);
}

/* ---------- Motifs de fond : nuage et étoile (assets/), en aplat via un masque ---------- */

body::before,
body::after {
    content: "";
    position: fixed;
    z-index: -1;
    pointer-events: none;
    mask-repeat: no-repeat;
    mask-size: contain;
    mask-position: center;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    -webkit-mask-position: center;
    animation: float 3s ease-in-out infinite;
}

body::before {
    top: 12vh;
    left: -60px;
    width: 340px;
    height: 180px;
    background-color: var(--color-green);
    opacity: .3;
    mask-image: url("assets/nuage.svg");
    -webkit-mask-image: url("assets/nuage.svg");
}

body::after {
    right: -50px;
    bottom: 8vh;
    width: 260px;
    height: 228px;
    background-color: var(--color-lavender);
    opacity: .55;
    mask-image: url("assets/star.svg");
    -webkit-mask-image: url("assets/star.svg");
    animation-delay: 1.5s;
}

h1,
h2,
p {
    margin: 0;
}

/* ---------- En-tête ---------- */

h1 {
    color: var(--color-green);
    font-size: clamp(3rem, 9vw, 5.75rem);
    font-weight: 700;
    line-height: .95;
    letter-spacing: -.03em;
}

/* Bandeau marine façon marquee du site */
h2 {
    margin-top: 32px;
    padding: 16px 32px;
    border-radius: 1rem 1rem 0 0;
    color: var(--color-lavender);
    background: var(--color-navy);
    font-size: clamp(1.2rem, 3vw, 1.625rem);
    font-weight: 500;
}

/* L'intro prolonge le bandeau */
p.intro {
    margin-bottom: 48px;
    padding: 24px 32px 28px;
    border-radius: 0 0 1rem 1rem;
    background: color-mix(in srgb, var(--color-lavender) 35%, transparent);
    font-size: 1.125rem;
    line-height: 1.65;
}

p.intro strong {
    color: var(--color-green);
}

/* ---------- Sections de la page d'accueil ---------- */

h3.section {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0 6px;
    color: var(--color-green);
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -.02em;
    counter-reset: item; /* la numérotation des cartes repart à 01 dans chaque section */
}

/* Trait lavande qui prolonge le titre */
h3.section::after {
    content: "";
    flex: 1;
    height: 3px;
    border-radius: 9999px;
    background: var(--color-lavender);
}

p.section-note {
    margin-bottom: 24px;
    color: color-mix(in srgb, var(--color-navy) 85%, transparent);
    font-size: 1rem;
}

/* Plus d'air avant la deuxième section */
div + h3.section {
    margin-top: 56px;
}

/* ---------- Cartes de contenu ---------- */

body > div {
    display: grid;
    gap: 14px;
    margin-bottom: 28px;
    padding: 28px 48px 32px;
    border-radius: 9999px;
    background: var(--color-cream);
    box-shadow: var(--shadow-halo);
    counter-increment: item;
    transition: transform 300ms var(--ease), box-shadow 300ms var(--ease);
}

body > div:hover {
    transform: translateY(-0.25rem);
    box-shadow: var(--shadow-lift);
}

/* Cartes de projets de l'accueil : plus d'air autour et entre les textes */
body > div.project {
    gap: 20px;
    padding: 48px 80px 52px;
}

body > div.project p.desc {
    line-height: 1.75;
}

body > div.project p.desc.space {
    margin-top: 4px;
}

/* Cartes d'information (matières sans projet) : non cliquables, survol plus discret */
body > div.info:hover {
    transform: translateY(-0.125rem);
    box-shadow: 0 6px 16px color-mix(in srgb, var(--color-lavender) 60%, transparent);
}

body > div.info.reveal.is-visible:hover {
    transform: translateY(-0.125rem);
}

/* Espace web : cartes hautes (aperçus de jeux), coins arrondis classiques */
body.web-space > div {
    padding: 28px 32px 32px;
    border-radius: 1rem;
}

/* Ligne titre + bouton */
body > div > p:first-child {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.3;
}

/* Numéro de la carte */
body > div > p:first-child::before {
    content: counter(item, decimal-leading-zero);
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 9999px;
    color: var(--color-lavender);
    background: var(--color-navy);
    box-shadow: var(--shadow-pill);
    font-size: .875rem;
    font-weight: 700;
}

/* Mention d'état d'un projet (ex. « En cours ») */
.status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 14px;
    border-radius: 9999px;
    color: var(--color-navy);
    background: var(--color-lavender);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
}

/* Point vert qui pulse : le projet avance */
.status::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 9999px;
    background: var(--color-green);
    animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
    50% { opacity: .3; transform: scale(.7); }
}

/* Bouton : un aplat se déroule du bas vers le haut et le texte s'inverse */
p a {
    position: relative;
    isolation: isolate;
    flex: 0 0 auto;
    margin-left: auto;
    overflow: hidden;
    padding: 8px 20px;
    border: 3px solid var(--color-green);
    border-radius: 9999px;
    color: var(--color-green);
    box-shadow: var(--shadow-pill);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    transition: color 300ms var(--ease), transform 300ms var(--ease);
}

p a::after {
    content: " →";
}

p a::before {
    content: "";
    position: absolute;
    inset: auto 0 0;
    z-index: -1;
    height: 0;
    background: var(--color-green);
    transition: height 300ms var(--ease);
}

p a:hover,
p a:focus-visible {
    color: var(--color-cream);
    transform: translateY(-0.25rem);
}

p a:hover::before,
p a:focus-visible::before {
    height: 100%;
}

/* Description */
p.desc {
    padding-left: 60px;
    color: color-mix(in srgb, var(--color-navy) 85%, transparent);
    font-size: 1rem;
    line-height: 1.65;
}

/* « Dans cet espace : … » sous une matière qui a sa page */
p.desc.space {
    color: var(--color-green);
    font-size: .95rem;
    font-weight: 700;
}

p.desc strong {
    color: var(--color-green);
}

p.desc code {
    padding: 1px 6px;
    border-radius: 6px;
    background: color-mix(in srgb, var(--color-lavender) 35%, transparent);
    font-size: .9em;
}

/* « Voir plus » : suite de la description, repliée par défaut */
details.more {
    padding-left: 60px;
    color: color-mix(in srgb, var(--color-navy) 85%, transparent);
    line-height: 1.65;
}

details.more summary {
    display: inline-block;
    padding: 6px 18px;
    border: 3px solid var(--color-lavender);
    border-radius: 9999px;
    color: var(--color-navy);
    font-size: .9rem;
    font-weight: 700;
    list-style: none;
    cursor: pointer;
    transition: background-color 300ms var(--ease), transform 300ms var(--ease);
}

details.more summary::-webkit-details-marker {
    display: none;
}

details.more summary::after {
    content: " ↓";
    display: inline-block;
    transition: transform 300ms var(--ease);
}

details.more[open] summary::after {
    transform: rotate(180deg);
}

details.more summary:hover,
details.more summary:focus-visible {
    background: var(--color-lavender);
    transform: translateY(-0.25rem);
}

details.more .more-close,
details.more[open] .more-open {
    display: none;
}

details.more[open] .more-close {
    display: inline;
}

details.more > p {
    margin-top: 14px;
}

details.more ul {
    display: grid;
    gap: 10px;
    margin: 10px 0 0;
    padding-left: 1.2em;
}

details.more li::marker {
    color: var(--color-green);
}

details.more strong {
    color: var(--color-green);
}

details.more[open] > :not(summary) {
    animation: reveal-text 500ms var(--ease);
}

@keyframes reveal-text {
    from { opacity: 0; transform: translateY(.5rem); }
}

/* ---------- Vidéos YouTube et aperçus de projets ---------- */

body > div > iframe,
.preview {
    display: block;
    width: 100%;
    height: auto;
    margin-top: 8px;
    border: 3px solid var(--color-lavender);
    border-radius: .9rem;
}

body > div > iframe {
    aspect-ratio: 16 / 9;
}

.preview {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--color-cream);
    transition: border-color 300ms var(--ease);
}

.preview iframe {
    width: 200%;
    height: 200%;
    border: 0;
    transform: scale(.5);
    transform-origin: top left;
    pointer-events: none;
}

/* Pastille « Jouer » sur les aperçus */
.preview::after {
    content: "▶ Jouer";
    position: absolute;
    right: 16px;
    bottom: 16px;
    padding: 8px 18px;
    border-radius: 9999px;
    color: var(--color-cream);
    background: var(--color-green);
    box-shadow: var(--shadow-pill);
    font-weight: 700;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 300ms var(--ease), transform 300ms var(--ease);
}

.preview:hover,
.preview:focus-visible {
    border-color: var(--color-green);
}

.preview:hover::after,
.preview:focus-visible::after {
    opacity: 1;
    transform: none;
}

/* ---------- Bilingue : seuls les textes de la langue de la page s'affichent ---------- */

html[lang="fr"] body [lang="en"],
html[lang="en"] body [lang="fr"] {
    display: none;
}

html[lang="en"] .preview::after {
    content: "▶ Play";
}

/* Switch FR | EN (posé par lang.js) : une pastille glisse sous la langue active */
body > .lang-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: auto;
    padding: 4px;
    border: 3px solid var(--color-green);
    border-radius: 9999px;
    background: var(--color-cream);
    box-shadow: var(--shadow-pill);
    font: 700 .9rem "DM Sans", sans-serif;
    cursor: pointer;
    transition: transform 300ms var(--ease);
}

body > .lang-toggle:hover,
body > .lang-toggle:focus-visible {
    transform: translateY(-0.25rem);
}

.lang-option {
    position: relative;
    z-index: 1;
    padding: 6px 14px;
    color: var(--color-green);
    transition: color 300ms var(--ease);
}

.lang-thumb {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: 4px;
    width: calc(50% - 4px);
    border-radius: 9999px;
    background: var(--color-green);
    transition: transform 300ms var(--ease);
}

/* Langue active en crème sur la pastille verte */
.lang-toggle[aria-checked="false"] .lang-option:nth-child(2),
.lang-toggle[aria-checked="true"] .lang-option:nth-child(3) {
    color: var(--color-cream);
}

.lang-toggle[aria-checked="true"] .lang-thumb {
    transform: translateX(100%);
}

/* ---------- Apparition au défilement (classes posées par reveal.js) ---------- */

.reveal {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity 700ms var(--ease), transform 700ms var(--ease), box-shadow 300ms var(--ease);
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

.reveal.is-visible:hover {
    transform: translateY(-0.25rem);
}

.reveal-1 { transition-delay: 100ms; }
.reveal-2 { transition-delay: 220ms; }
.reveal-3 { transition-delay: 340ms; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ---------- Responsive : seuil structurant à 1024px ---------- */

@media (max-width: 1023px) {
    body { padding: 48px 16px 64px; }
    body > * { width: min(720px, 100%); }
    h1,
    h2 { text-align: center; }
    h2 { padding: 14px 22px; }
    p.intro { padding: 20px 22px 24px; font-size: 1rem; }
    body > div,
    body.web-space > div { padding: 24px 20px; }
    body > div.project { gap: 16px; padding: 36px 28px; }
    body > div > p:first-child {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        font-size: 1.1rem;
    }
    p a { margin-left: 0; }
    p.desc,
    details.more { padding-left: 0; }
    /* en colonne, les motifs passeraient sur le texte */
    body::before,
    body::after { display: none; }
}

/* Écrans courts (portable 1366×768) */
@media (max-height: 740px) {
    body { padding-top: 40px; }
    h1 { font-size: clamp(2.5rem, 11vh, 4.5rem); }
    h2 { margin-top: 20px; }
    p.intro { margin-bottom: 32px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
}