/* ===== Variables ===== */
:root {
    --fond: #f5f5f3;
    --surface: #ffffff;
    --texte: #111111;
    --texte-doux: #8c8c8c;
    --accent: #111111;
    --bordure: #d9d9d6;
    --erreur: #b3261e;
    --largeur-barre: 260px;
    --espace: 10px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter Tight', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 400;
    color: var(--texte);
    background: var(--fond);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ===== Barre latérale (fixe) ===== */
.barre-laterale {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--largeur-barre);
    padding: 44px 32px;
    display: flex;
    flex-direction: column;
}

.marque {
    display: block;
    margin-bottom: 48px;
}

.marque-nom {
    display: block;
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.5px;
    text-transform: uppercase;
    color: var(--texte);
}

.marque-sous-titre {
    display: block;
    margin-top: 12px;
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--texte-doux);
}

.menu {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.menu a {
    display: flex;
    align-items: center;
    font-size: 0.72rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--texte-doux);
    transition: color 0.2s;
}

/* Petit trait devant le lien actif / survolé */
.menu a::before {
    content: '';
    width: 0;
    height: 1px;
    margin-right: 0;
    background: var(--accent);
    transition: width 0.3s, margin-right 0.3s;
}

.menu a:hover,
.menu a.actif {
    color: var(--texte);
}

.menu a:hover::before,
.menu a.actif::before {
    width: 18px;
    margin-right: 10px;
}

.pied {
    margin-top: auto;
    font-size: 0.65rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--texte-doux);
}

/* ===== Galerie ===== */
.galerie {
    margin-left: var(--largeur-barre);
    padding: 36px 36px 36px 0;
}

.vide {
    color: var(--texte-doux);
    padding: 80px 0;
}

/*
 * Grille en motif répété de 6 photos :
 *  [ grande ][ petite ]      [ petite ][ grande ]
 *  [ grande ][ petite ]  puis [ petite ][ grande ]
 */
.grille {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 26vw;
    grid-auto-flow: dense;
    gap: var(--espace);
}

.case {
    overflow: hidden;
    background: #e8e8e5;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.9s ease, transform 0.9s ease;
}

.case.visible {
    opacity: 1;
    transform: none;
}

.case img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 1.2s ease;
}

.case:hover img {
    transform: scale(1.03);
}

.case:nth-child(6n + 1) {
    grid-column: 1;
    grid-row: span 2;
}

.case:nth-child(6n + 4),
.case:nth-child(6n + 5) {
    grid-column: 1;
}

.case:nth-child(6n) {
    grid-column: 2;
    grid-row: span 2;
}

/* Dernière photo seule en début de motif : elle prend toute la largeur */
.case:last-child:nth-child(6n + 1) {
    grid-column: 1 / -1;
    grid-row: span 2;
}

/* ===== Page de login ===== */
.page-login {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.carte-login {
    width: 100%;
    max-width: 340px;
    text-align: left;
}

.carte-login .marque-nom {
    font-size: 2rem;
}

.carte-login .marque {
    margin-bottom: 56px;
}

.formulaire {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.formulaire label {
    font-size: 0.7rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--texte-doux);
    margin-bottom: 6px;
}

.formulaire input {
    font: inherit;
    font-weight: 400;
    padding: 10px 2px;
    border: none;
    border-bottom: 1px solid var(--bordure);
    background: transparent;
    margin-bottom: 24px;
    transition: border-color 0.2s;
}

.formulaire input:focus {
    outline: none;
    border-color: var(--accent);
}

.bouton {
    font: inherit;
    font-size: 0.72rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    padding: 16px;
    margin-top: 16px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    transition: background 0.25s, color 0.25s;
}

.bouton:hover {
    background: transparent;
    color: var(--accent);
}

.erreur {
    color: var(--erreur);
    font-size: 0.85rem;
    margin-bottom: 20px;
}

/* ===== Tablette / mobile ===== */
@media (max-width: 800px) {
    .barre-laterale {
        position: static;
        width: auto;
        padding: 28px 16px 20px;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: flex-end;
        justify-content: space-between;
        gap: 16px;
    }

    .marque {
        margin-bottom: 0;
    }

    .marque-nom {
        font-size: 1.4rem;
    }

    .menu {
        flex-direction: row;
        gap: 18px;
    }

    .pied {
        display: none;
    }

    .galerie {
        margin-left: 0;
        padding: 0 16px 32px;
    }

    .grille {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .case,
    .case:nth-child(n),
    .case:last-child:nth-child(6n + 1) {
        grid-column: 1;
        grid-row: auto;
        aspect-ratio: 4 / 5;
    }
}