/* Site du studio : sobre et moderne, distinct de l'identité des apps. */

@font-face {
    font-family: 'Inter';
    src: url("../fonts/Inter-Regular-lfhlmGW.woff2") format('woff2');
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url("../fonts/Inter-Medium-ujWWIM6.woff2") format('woff2');
    font-weight: 500 700;
    font-display: swap;
}

:root {
    --bg: #F6F5F1;
    --surface: #FFFFFF;
    --ink: #14171A;
    --muted: #5A6068;
    --line: #E3E1DA;
    --accent: #1F5F4A;
    --accent-ink: #FFFFFF;
    --accent-soft: #E2EEE8;
    --todo: #FFE8A3;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0F1214;
        --surface: #171B1E;
        --ink: #ECEEEF;
        --muted: #9AA2A9;
        --line: #262C30;
        --accent: #6FC2A2;
        --accent-ink: #0F1214;
        --accent-soft: #18302A;
        --todo: #5C4A12;
        color-scheme: dark;
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 400 17px/1.6 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

a:focus-visible,
.button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.container {
    width: min(1080px, 100% - 40px);
    margin-inline: auto;
}

mark.todo {
    background: var(--todo);
    color: inherit;
    padding: 0 4px;
    border-radius: 4px;
}

/* En-tête */

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: color-mix(in srgb, var(--bg) 85%, transparent);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    letter-spacing: -0.01em;
    text-decoration: none;
}

/* Pixel art : pas de lissage à l'agrandissement. Le personnage n'occupe
   que le centre de l'image : marges négatives pour l'aligner. */
.logo {
    margin: -8px -6px -8px -12px;
    image-rendering: pixelated;
}

.site-header nav {
    display: flex;
    gap: 24px;
}

.site-header nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 15px;
}

.site-header nav a:hover {
    color: var(--ink);
}

/* Accueil */

.hero {
    padding: clamp(72px, 12vw, 140px) 0 clamp(56px, 8vw, 96px);
}

/* Hugo est dans le titre, juste après NOUS : à droite du texte sur grand
   écran, sur la ligne de NOUS sur mobile. */
.hero-inner {
    position: relative;
}

.hero-text {
    padding-right: 288px;
}

/* Évolution du personnage : planche de 19 images de 24 px, agrandie sans
   lissage. Une fois l'évolution jouée, il cligne des yeux et bouge l'oreille. */
.evolution {
    position: absolute;
    top: 50%;
    right: 0;
    width: 240px;
    aspect-ratio: 1;
    transform: translateY(-50%);
    background: url("../images/darwin-evolution-fthB4D5.png") 88.8889% 0 / 1900% 100% no-repeat;
    image-rendering: pixelated;
    animation:
        evolution 2.5s step-end both,
        idle 1.975s step-end 2.5s infinite;
}

@keyframes evolution {
    0% { background-position-x: 0%; }
    10% { background-position-x: 5.5556%; }
    15% { background-position-x: 11.1111%; }
    20% { background-position-x: 16.6667%; }
    25% { background-position-x: 22.2222%; }
    35% { background-position-x: 27.7778%; }
    40% { background-position-x: 33.3333%; }
    45% { background-position-x: 38.8889%; }
    50% { background-position-x: 44.4444%; }
    60% { background-position-x: 50%; }
    65% { background-position-x: 55.5556%; }
    70% { background-position-x: 61.1111%; }
    75% { background-position-x: 66.6667%; }
    85% { background-position-x: 72.2222%; }
    90% { background-position-x: 77.7778%; }
    95% { background-position-x: 83.3333%; }
    100% { background-position-x: 88.8889%; }
}

@keyframes idle {
    0% { background-position-x: 88.8889%; }
    50.633% { background-position-x: 94.4444%; }
    56.962% { background-position-x: 88.8889%; }
    87.342% { background-position-x: 100%; }
}

.eyebrow {
    margin: 0 0 20px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1 {
    max-width: 16ch;
    margin: 0;
    font-size: clamp(40px, 7vw, 76px);
    font-weight: 500;
    line-height: 1.04;
    letter-spacing: -0.035em;
}

h1 em {
    font-style: normal;
    color: var(--accent);
}

.lead {
    max-width: 60ch;
    margin: 28px 0 0;
    color: var(--muted);
    font-size: clamp(17px, 2vw, 20px);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 40px;
}

.button {
    display: inline-flex;
    align-items: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 999px;
    background: var(--accent);
    color: var(--accent-ink);
    font-weight: 500;
    text-decoration: none;
    transition: transform 0.15s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-ghost {
    background: transparent;
    color: var(--ink);
    box-shadow: inset 0 0 0 1px var(--line);
}

.section-title {
    margin: 0 0 32px;
    font-size: clamp(26px, 3.5vw, 36px);
    font-weight: 500;
    letter-spacing: -0.02em;
}

.principles,
.apps,
.contact {
    padding: clamp(56px, 8vw, 96px) 0;
    border-top: 1px solid var(--line);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
}

.card-index {
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
}

.card h3 {
    margin: 12px 0 8px;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: -0.01em;
}

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

.app-card {
    display: flex;
    gap: 28px;
    align-items: flex-start;
    padding: 32px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: var(--surface);
    text-decoration: none;
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.app-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.app-card img {
    flex: none;
    border-radius: 22px;
}

.app-card h3 {
    margin: 4px 0 8px;
    font-size: 28px;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.app-card p {
    margin: 0;
    color: var(--muted);
    max-width: 56ch;
}

.app-status {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent) !important;
    font-size: 13px;
    font-weight: 500;
}

.app-link {
    display: inline-block;
    margin-top: 16px;
    color: var(--accent);
    font-weight: 500;
}

.contact-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    align-items: flex-end;
    justify-content: space-between;
}

.contact .lead {
    margin-top: 0;
}

/* Pages de texte (mentions légales) */

.prose {
    max-width: 760px;
    padding: 64px 0 96px;
}

.prose h1 {
    max-width: none;
    font-size: clamp(34px, 5vw, 48px);
}

.prose h2 {
    margin: 40px 0 8px;
    font-size: 20px;
    font-weight: 500;
}

.prose p,
.prose li {
    color: var(--muted);
}

.prose a {
    color: var(--accent);
}

/* Pied de page */

.site-footer {
    border-top: 1px solid var(--line);
    padding: 28px 0;
    color: var(--muted);
    font-size: 14px;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    justify-content: space-between;
}

.footer-inner p {
    margin: 0;
}

.footer-inner nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 20px;
}

.footer-icon {
    display: inline-flex;
    padding: 4px;
    margin: -4px;
}

.footer-icon:hover {
    color: var(--ink);
}

@media (max-width: 600px) {
    .site-header nav {
        gap: 16px;
    }

    .app-card {
        flex-direction: column;
        padding: 24px;
    }
}

@media (max-width: 860px) {
    .hero-text {
        padding-right: 0;
    }

    /* NOUS seul sur sa ligne, Hugo calé à droite, pieds sur la ligne de base. */
    .hero .nous {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
    }

    .evolution {
        position: static;
        width: 96px;
        margin: -48px -12px -12px 0;
        transform: none;
    }
}

/* Très petits écrans : Hugo plus petit pour ne pas toucher « pour ». */
@media (max-width: 359px) {
    .evolution {
        width: 72px;
        margin: -36px -9px -9px 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .button,
    .app-card {
        transition: none;
    }

    .evolution {
        animation: none;
    }
}

/* Chevron de retour */

.back {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 44px;
    margin-left: -6px;
    padding-right: 8px;
    color: var(--muted);
    font-size: 15px;
    text-decoration: none;
}

.back:hover {
    color: var(--ink);
}

.back-row {
    max-width: 760px;
    padding-top: 24px;
}

.back-row + .prose {
    padding-top: 16px;
}