/* ---------------------------------------------------------------
   Essai « Hall d'accueil » : le contraire des backrooms.
   Un hall d'hôtel trop bien éclairé : signalétique, panneaux
   directionnels, plaques de porte et sortie de secours.
   La nuit (mode sombre), le hall reste allumé.
   --------------------------------------------------------------- */

@import url("https://fonts.googleapis.com/css2?family=Overpass:wght@400;600;800&family=Overpass+Mono:wght@400;600&display=swap");

:root {
    --mur: #efe7d4;
    --lambris: #e2d6b8;
    --texte: #1f1f1f;
    --doux: #5c574b;
    --plaque: #fbfaf6;
    --vert: #0f6b45;
    --bleu: #1d4e89;
    --jaune: #f2c230;
    --bois: #6b4a2f;
    --laiton: #c9a24a;
    --neon: #fffbe6;
    --police: "Overpass", "Segoe UI", sans-serif;
    --mono: "Overpass Mono", Consolas, monospace;
    --largeur: 1140px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --mur: #1c1b17;
        --lambris: #24221d;
        --texte: #f0ebde;
        --doux: #b3ab98;
        --plaque: #2b2924;
    }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--mur);
    color: var(--texte);
    font: 17px/1.6 var(--police);
}

a {
    color: var(--bleu);
}

@media (prefers-color-scheme: dark) {
    a {
        color: #8fb8ee;
    }
}

img {
    max-width: 100%;
    display: block;
}

.saut {
    position: absolute;
    left: -9999px;
}

.saut:focus {
    left: 16px;
    top: 16px;
    z-index: 10;
    padding: 8px 12px;
    background: var(--jaune);
    color: #1f1f1f;
}

.bloc {
    scroll-margin-top: 80px;
}

/* --- Navigation : le tableau d'orientation --- */

.site-nav {
    position: sticky;
    top: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px max(16px, calc((100% - var(--largeur)) / 2));
    background: var(--bleu);
    color: #fff;
    box-shadow: 0 2px 0 #fff inset, 0 -2px 0 #fff inset;
}

.marque {
    color: #fff;
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: .06em;
    text-decoration: none;
    text-transform: uppercase;
}

.marque::before {
    content: "H";
    display: inline-grid;
    place-items: center;
    width: 1.6em;
    height: 1.6em;
    margin-right: 10px;
    border-radius: 6px;
    background: #fff;
    color: var(--bleu);
}

.nav-liens {
    display: flex;
    gap: 6px;
    margin: 0 0 0 auto;
    padding: 0;
    list-style: none;
}

.nav-liens a {
    white-space: nowrap;
    display: block;
    padding: 6px 12px;
    border-radius: 6px;
    color: #fff;
    font-weight: 600;
    text-decoration: none;
}

.nav-liens a::after {
    content: " →";
    opacity: .6;
}

.nav-liens a:hover {
    background: rgba(255, 255, 255, .15);
}

.nav-action {
    padding: 6px 14px;
    border-radius: 6px;
    background: var(--jaune);
    color: #1f1f1f;
    font-weight: 800;
    text-decoration: none;
}

/* --- Hero : le mur du hall --- */

.site-entete {
    background:
        linear-gradient(transparent calc(100% - 120px), var(--lambris) calc(100% - 120px)),
        var(--mur);
}

.hero {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 56px;
    align-items: center;
    max-width: var(--largeur);
    margin: 0 auto;
    padding: 96px 16px 120px;
}

/* Le néon du plafond */
.hero::before {
    content: "";
    position: absolute;
    top: 28px;
    left: 50%;
    width: min(60%, 520px);
    height: 8px;
    border-radius: 8px;
    background: var(--neon);
    box-shadow: 0 0 24px 6px rgba(255, 250, 220, .9), 0 0 80px 30px rgba(255, 250, 220, .35);
    transform: translateX(-50%);
    animation: allumage 1.6s steps(1) 1;
}

@keyframes allumage {
    0%, 20%, 40% { opacity: .2; }
    10%, 30%, 60% { opacity: 1; }
}

/* Le grand panneau d'accueil */
.hero-texte {
    padding: 36px;
    border-radius: 14px;
    background: var(--bleu);
    color: #fff;
    box-shadow: inset 0 0 0 6px var(--bleu), inset 0 0 0 9px #fff, 0 20px 40px -20px rgba(0, 0, 0, .5);
}

.hero-surtitre {
    margin: 0 0 6px;
    font: 600 .85rem var(--mono);
    letter-spacing: .1em;
    text-transform: uppercase;
    opacity: .85;
}

.hero-surtitre::before {
    content: "Accueil · ";
}

.hero-titre {
    margin: 0;
    font-size: clamp(2.6rem, 7vw, 4.8rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: .01em;
    text-transform: uppercase;
}

.hero-intro {
    margin: 16px 0 28px;
    font-size: 1.1rem;
    opacity: .92;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* Le tableau accroché au mur, avec sa plaque en laiton */
.hero-visuel {
    margin: 0;
    text-align: center;
}

.hero-visuel img {
    width: 100%;
    aspect-ratio: 5 / 4;
    object-fit: cover;
    padding: 14px;
    background: #fff;
    border: 14px solid var(--bois);
    box-shadow: 0 24px 40px -18px rgba(0, 0, 0, .55);
}

.hero-visuel figcaption {
    display: inline-block;
    margin-top: 16px;
    padding: 4px 14px;
    border-radius: 3px;
    background: linear-gradient(180deg, #e3c372, var(--laiton));
    color: #3a2a0a;
    font: .8rem var(--mono);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .6) inset, 0 2px 4px rgba(0, 0, 0, .25);
}

/* --- Boutons : des panneaux directionnels --- */

.page-contenu .btn,
.bouton {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border: 0;
    border-radius: 8px;
    background: var(--jaune);
    color: #1f1f1f;
    font: 800 1rem var(--police);
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 3px 0 rgba(0, 0, 0, .25);
}

.bouton::after {
    content: "→";
}

.page-contenu .btn:hover,
.bouton:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 0 rgba(0, 0, 0, .25);
}

.bouton-discret {
    background: #fff;
    color: var(--bleu);
}

/* --- Blocs : chaque section est une salle --- */

.bloc {
    max-width: var(--largeur);
    margin: 0 auto;
    padding: 72px 16px;
}

.bloc-entete {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 16px;
    margin-bottom: 32px;
}

.bloc-numero {
    padding: 4px 12px;
    border-radius: 6px;
    background: #1f1f1f;
    color: #fff;
    font: 600 .85rem var(--mono);
    letter-spacing: .08em;
}

.bloc-numero::before {
    content: "SALLE ";
}

.bloc-entete h2 {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    text-transform: uppercase;
}

.bloc-chapo {
    flex-basis: 100%;
    margin: 0;
    color: var(--doux);
}

/* Articles : des plaques de porte */
.page-contenu .grid,
.grille-articles {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
    gap: 20px;
}

.page-contenu .item,
.carte-article {
    position: relative;
    overflow: hidden;
    padding: 0 22px 20px;
    border-radius: 10px;
    background: var(--plaque);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .08), 0 12px 24px -16px rgba(0, 0, 0, .5);
    transition: transform .2s;
}

.page-contenu .item:hover,
.carte-article:hover {
    transform: translateY(-3px);
}

.carte-meta {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin: 0 -22px;
    padding: 8px 22px;
    background: var(--bleu);
    color: #fff;
    font: .78rem var(--mono);
    letter-spacing: .06em;
    text-transform: uppercase;
}

.carte-article h3 {
    margin: 16px 0 6px;
    font-size: 1.25rem;
    font-weight: 800;
}

.carte-article h3 a {
    color: var(--texte);
    text-decoration: none;
}

.carte-article h3 a::after {
    content: "";
    position: absolute;
    inset: 0;
}

.carte-article p {
    margin: 0 0 12px;
    color: var(--doux);
}

.carte-lien {
    font-weight: 800;
    text-decoration: none;
}

/* Pages : panneaux directionnels vert, bleu, jaune */
.grille-pages {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
    gap: 14px;
}

.tuile-page {
    display: grid;
    grid-template-columns: 52px 1fr 40px;
    column-gap: 14px;
    align-items: center;
    padding: 14px 16px;
    border-radius: 10px;
    background: var(--vert);
    color: #fff;
    text-decoration: none;
    box-shadow: inset 0 0 0 3px var(--vert), inset 0 0 0 5px rgba(255, 255, 255, .85);
    transition: transform .2s;
}

.tuile-page:nth-child(3n + 2) {
    background: var(--bleu);
    box-shadow: inset 0 0 0 3px var(--bleu), inset 0 0 0 5px rgba(255, 255, 255, .85);
}

.tuile-page:nth-child(3n) {
    background: var(--jaune);
    color: #1f1f1f;
    box-shadow: inset 0 0 0 3px var(--jaune), inset 0 0 0 5px rgba(31, 31, 31, .85);
}

.tuile-page:hover {
    transform: translateX(4px);
}

.tuile-page::after {
    content: "→";
    grid-column: 3;
    grid-row: 1 / span 2;
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #fff;
    color: #1f1f1f;
    font-weight: 800;
}

.tuile-icone {
    grid-row: 1 / span 2;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 8px;
    background: #fff;
    font-size: 1.6rem;
}

.tuile-page strong {
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
}

.tuile-texte {
    grid-column: 2;
    font-size: .9rem;
    line-height: 1.35;
    opacity: .9;
}

/* À propos : des panneaux d'information */
.colonnes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.colonne {
    position: relative;
    padding: 24px 24px 24px 76px;
    border-radius: 10px;
    background: var(--plaque);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .08);
}

.colonne::before {
    content: "i";
    position: absolute;
    top: 24px;
    left: 24px;
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bleu);
    color: #fff;
    font: 800 1.2rem Georgia, serif;
}

.colonne h3 {
    margin: 0 0 6px;
    font-weight: 800;
    text-transform: uppercase;
}

.colonne p {
    margin: 0;
    color: var(--doux);
}

/* Contact : le comptoir de la réception */
.formulaire {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px 24px;
    max-width: 780px;
    padding: 28px;
    border-top: 16px solid var(--bois);
    border-radius: 4px 4px 10px 10px;
    background: var(--plaque);
    box-shadow: 0 16px 30px -18px rgba(0, 0, 0, .5);
}

.champ-large,
.formulaire-note {
    grid-column: 1 / -1;
}

.page-contenu .form-label,
.champ label {
    display: block;
    margin-bottom: 4px;
    font: 600 .8rem var(--mono);
    letter-spacing: .08em;
    text-transform: uppercase;
}

.page-contenu .form-control,
.champ input,
.champ textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--texte);
    border-radius: 6px;
    background: var(--mur);
    color: var(--texte);
    font: 1rem var(--police);
}

.page-contenu .form-control:focus,
.champ input:focus,
.champ textarea:focus {
    outline: 4px solid var(--jaune);
    outline-offset: 0;
}

.formulaire .bouton {
    justify-self: start;
}

.formulaire-note,
.vide {
    margin: 0;
    color: var(--doux);
}

/* --- Pied de page : la sortie de secours --- */

.site-pied {
    margin-top: 48px;
    padding: 0 max(16px, calc((100% - var(--largeur)) / 2)) 24px;
    background: #1f1f1f;
    color: #f0ebde;
}

.site-pied::before {
    content: "SORTIE  ·  EXIT  →";
    display: block;
    width: fit-content;
    margin: 0 auto 40px;
    padding: 10px 28px;
    border-radius: 0 0 10px 10px;
    background: var(--vert);
    color: #fff;
    font-weight: 800;
    letter-spacing: .14em;
    white-space: pre;
    box-shadow: 0 0 30px rgba(40, 200, 120, .45);
}

.site-pied a {
    color: inherit;
}

.pied-colonnes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 28px;
}

.pied-colonnes h4 {
    margin: 0 0 6px;
    color: var(--jaune);
    font: 600 .8rem var(--mono);
    letter-spacing: .1em;
    text-transform: uppercase;
}

.pied-colonnes p {
    margin: 0;
}

.reseaux {
    display: flex;
    gap: 14px;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 1.5rem;
}

.pied-copyright {
    margin: 36px 0 0;
    color: #a39d8e;
    font: .8rem var(--mono);
}

/* --- Les vraies pages du site, vues à travers le labo ---
   (list.php, article.php, newArticle.php...) Leur HTML n'est pas fait
   pour le labo : on habille leurs balises et les quelques classes
   Bootstrap qu'elles utilisent. Les boutons, champs et cartes
   partagent les règles plus haut (.page-contenu .btn, .form-control,
   .item...). */

.page-contenu {
    max-width: var(--largeur);
    margin: 0 auto;
    padding: 72px 16px 96px;
}

.page-contenu h1 {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin: 0 0 36px;
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 800;
    line-height: 1.15;
    text-transform: uppercase;
}

.page-contenu h1 i {
    display: grid;
    place-items: center;
    width: 1.6em;
    height: 1.6em;
    border-radius: 8px;
    background: var(--bleu);
    color: #fff;
    font-size: .7em;
}

.page-contenu > h2 {
    margin: 0 0 20px;
    padding: 18px 24px;
    border-radius: 12px;
    background: var(--bleu);
    color: #fff;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 800;
    text-transform: uppercase;
    box-shadow: inset 0 0 0 5px var(--bleu), inset 0 0 0 8px #fff;
}

.page-contenu > p {
    max-width: 65ch;
    margin: 0 0 1.2em;
}

.page-contenu .item {
    padding-top: 20px;
    border-top: 10px solid var(--bleu);
}

.page-contenu .item .image {
    display: none;
}

.page-contenu .item h2 {
    margin: 0 0 6px;
    font-size: 1.25rem;
    font-weight: 800;
}

.page-contenu .item p {
    margin: 0 0 12px;
    color: var(--doux);
}

.page-contenu .item a {
    font-weight: 800;
    text-decoration: none;
}

.page-contenu .item a::after {
    content: "";
    position: absolute;
    inset: 0;
}

.page-contenu .item a i {
    margin-right: 6px;
}

.page-contenu form {
    max-width: 720px;
    padding: 28px;
    border-top: 16px solid var(--bois);
    border-radius: 4px 4px 10px 10px;
    background: var(--plaque);
    box-shadow: 0 16px 30px -18px rgba(0, 0, 0, .5);
}

.page-contenu .mb-3 {
    margin-bottom: 18px;
}

.page-contenu textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.page-contenu .alert {
    max-width: 720px;
    margin: 0 0 24px;
    padding: 12px 18px 12px 56px;
    position: relative;
    border-radius: 10px;
    background: var(--vert);
    color: #fff;
    font-weight: 600;
}

.page-contenu .alert::before {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 16px;
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    margin-top: -14px;
    border-radius: 50%;
    background: #fff;
    color: var(--vert);
}

.page-contenu .alert a {
    color: inherit;
}

.page-contenu .alert-danger {
    background: #b3261e;
}

.page-contenu .alert-danger::before {
    content: "!";
    color: #b3261e;
}

/* --- Petits écrans --- */

@media (max-width: 800px) {
    .site-nav {
        flex-wrap: wrap;
        gap: 8px 16px;
    }

    .nav-liens {
        order: 3;
        width: 100%;
        margin: 0;
        overflow-x: auto;
    }

    .nav-action {
        margin-left: auto;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 72px 16px 96px;
    }

    .hero-texte {
        padding: 26px;
    }

    .formulaire {
        grid-template-columns: 1fr;
        padding: 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero::before {
        animation: none;
    }

    html {
        scroll-behavior: auto;
    }
}