:root {
    --fond-principal: #7BBECA;
    --fond-sombre: #1e1f26;
    --texte-clair: #ffffff;
    --texte-sombre: #1b1b1b;
    --accent: #8B0000;
    --bouton: rgba(255,255,255,0.88);
    --bouton-hover: rgba(255,255,255,1);
    --overlay: rgba(0, 0, 0, 0.38);
    --carte: rgba(255,255,255,0.82);
    --ombre: 0 10px 25px rgba(0,0,0,0.18);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--fond-principal);
    color: var(--texte-sombre);
    line-height: 1.5;
}

/* ---------- éléments communs ---------- */

.page-simple {
    min-height: 100vh;
    padding: 30px 16px 50px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.30), rgba(255,255,255,0.10)), var(--fond-principal);
}

.page-simple .contenu {
    max-width: 900px;
    margin: 0 auto;
    background: var(--carte);
    border-radius: 18px;
    box-shadow: var(--ombre);
    padding: 24px;
}

.page-simple h1,
.page-simple h2 {
    margin-top: 0;
    color: var(--accent);
}

.btn-retour,
button,
.bouton-lien {
    display: inline-block;
    border: 0;
    border-radius: 999px;
    background: var(--bouton);
    color: #000;
    padding: 11px 18px;
    font-size: 16px;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(0,0,0,0.15);
    transition: transform 0.15s ease, background 0.15s ease;
}

.btn-retour:hover,
button:hover,
.bouton-lien:hover {
    background: var(--bouton-hover);
    transform: translateY(-1px);
}

.actions-bas {
    margin-top: 26px;
}

/* ---------- page d'accueil principale ---------- */

@keyframes fondu {
    0%   { background-image: url("IMG/1.jpg"); }
    25%  { background-image: url("IMG/2.jpg"); }
    50%  { background-image: url("IMG/3.jpg"); }
    75%  { background-image: url("IMG/4.jpg"); }
    100% { background-image: url("IMG/1.jpg"); }
}

.conteneur1 {
    width: 100%;
    min-height: 100vh;
    padding: 20px;
}

.d1 {
    max-width: 1180px;
    min-height: calc(100vh - 40px);
    margin: 0 auto;
    border-radius: 26px;
    overflow: hidden;
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    animation: fondu 15s ease-in-out infinite both;
    box-shadow: var(--ombre);
    position: relative;
}

.d1::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.20), rgba(0,0,0,0.42));
}

.d1:hover {
    animation-play-state: paused;
}

#container {
    position: relative;
    z-index: 1;
    min-height: calc(100vh - 40px);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: minmax(170px, 32vh) auto auto;
    gap: 18px;
    align-items: start;
    padding: 28px;
}

#titre {
    grid-column: 2 / span 3;
    grid-row: 1;
    color: #fff;
    text-align: center;
    align-self: center;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    background: rgba(0,0,0,0.22);
    backdrop-filter: blur(2px);
    border-radius: 22px;
    padding: 18px 20px;
}

#titre .nom {
    color: #fff;
    font-size: clamp(26px, 4vw, 42px);
    font-weight: 700;
    letter-spacing: 1px;
}

#titre .soustitre {
    font-size: clamp(16px, 2vw, 22px);
}

#titre .message {
    margin-top: 10px;
    font-size: 15px;
}

.bloc-bouton {
    display: flex;
    justify-content: center;
    align-items: center;
}

#accueil { grid-column: 1; grid-row: 2; }
#thechambre { grid-column: 2; grid-row: 2; }
#dispos { grid-column: 3; grid-row: 2; }
#presta { grid-column: 4; grid-row: 2; }
#contact { grid-column: 5; grid-row: 2; }

#copyright { grid-column: 2; grid-row: 3; }
#legal { grid-column: 4; grid-row: 3; }

.menu-btn {
    min-width: 150px;
    padding: 14px 18px;
    font-size: 17px;
    font-weight: 600;
}

/* ---------- slider partagé ---------- */

body.page-slider {
    background-color: var(--fond-sombre);
    color: var(--texte-clair);
}

.page-slider-wrap {
    max-width: 980px;
    margin: 0 auto;
    padding: 22px 16px 60px;
}

.page-slider-wrap h1 {
    text-align: center;
    margin: 0 0 20px;
    color: #fff;
}

.slider {
    width: min(100%, 860px);
    margin: 0 auto;
    position: relative;
}

.slider-viewport {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 18px;
    box-shadow: var(--ombre);
    background: #111;
}

.slider-content {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 100%;
    transition: transform 0.8s ease;
}

.slider-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.slider-nav {
    margin-top: 18px;
    text-align: center;
}

.slider-nav a {
    display: inline-block;
    width: 14px;
    height: 14px;
    margin: 0 4px;
    border-radius: 50%;
    background-color: #adafbc;
    box-shadow: 0 0 5px rgba(255,255,255,0.3);
}

.slider-nav a:hover {
    background-color: #fff;
    box-shadow: 0 0 5px rgba(255,255,255,0.8);
}

#img2:target .slider-content { transform: translateX(-100%); }
#img3:target .slider-content { transform: translateX(-200%); }
#img4:target .slider-content { transform: translateX(-300%); }
#img5:target .slider-content { transform: translateX(-400%); }

.overlay-content {
    background-color: rgba(0, 0, 0, 0.48);
    color: #fff0c2;
    font-weight: bold;
    border: 6px solid rgba(0,0,0,0.6);
    border-radius: 16px;
    position: fixed;
    top: 50%;
    left: 50%;
    width: min(90vw, 420px);
    transform: translate(-50%, -50%);
    z-index: 2;
    padding: 28px 24px;
    text-align: center;
    box-shadow: var(--ombre);
}

.overlay-content.small-text {
    text-align: left;
    font-size: 16px;
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
    #container {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto repeat(4, auto);
    }

    #titre {
        grid-column: 1 / span 2;
        grid-row: 1;
    }

    #accueil { grid-column: 1; grid-row: 2; }
    #thechambre { grid-column: 2; grid-row: 2; }
    #dispos { grid-column: 1; grid-row: 3; }
    #presta { grid-column: 2; grid-row: 3; }
    #contact { grid-column: 1; grid-row: 4; }
    #copyright { grid-column: 2; grid-row: 4; }
    #legal { grid-column: 1 / span 2; grid-row: 5; }

    .menu-btn {
        width: 100%;
        max-width: 260px;
    }
}

@media (max-width: 600px) {
    .conteneur1 {
        padding: 10px;
    }

    .d1 {
        min-height: calc(100vh - 20px);
        border-radius: 18px;
    }

    #container {
        min-height: calc(100vh - 20px);
        grid-template-columns: 1fr;
        grid-template-rows: auto repeat(7, auto);
        gap: 14px;
        padding: 18px;
    }

    #titre,
    #accueil,
    #thechambre,
    #dispos,
    #presta,
    #contact,
    #copyright,
    #legal {
        grid-column: 1;
    }

    #titre { grid-row: 1; }
    #accueil { grid-row: 2; }
    #thechambre { grid-row: 3; }
    #dispos { grid-row: 4; }
    #presta { grid-row: 5; }
    #contact { grid-row: 6; }
    #copyright { grid-row: 7; }
    #legal { grid-row: 8; }

    .menu-btn {
        width: 100%;
    }

    .overlay-content {
        position: static;
        transform: none;
        width: 100%;
        margin-top: 20px;
    }
}