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

:root {
    --sky: #5bbde4;
    --yellow: #FFE033;
    --yellow-shadow: #c8920a;
    --pink: #F4879C;
    --pink-shadow: #c0435f;
    --text-yellow: #7a3800;
    --text-pink: #7a1a35;
}

html, body {
    height: 100%;
    font-family: 'Nunito', sans-serif;
    overflow-x: hidden;
}



/*------header-------*/
#donutBtn {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
}

/*------btn-donut-------*/
.donut-btn {
    width: 100px;
    height: auto;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
.donut-btn img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 3px 6px rgba(0,0,0,0.35));
}
.donut-btn.is-open {
    transform: rotate(20deg) scale(1.1);
}
.donut-btn:active {
    transform: scale(0.88) !important;
}



/*------recouvrir-------*/
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 60, 120, 0.4);
    z-index: 400;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    cursor: pointer;
}
.overlay.is-open {
    opacity: 1;
    pointer-events: all;
}

/*------Menu Panel-------*/
.menu-panel {
    position: fixed;
    top: 0; left: 0;
    width: 80vw;
    max-width: 300px;
    height: 100vh;
    background: linear-gradient(170deg, #62c5eb 0%, #3a9fd0 100%);
    z-index: 500;
    transform: translateX(-105%);
    transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    padding: 0 0 32px 0;
    box-shadow: 6px 0 30px rgba(0,0,0,0.25);
    overflow: hidden;
}
.menu-panel::before {
    content: '';
    position: absolute;
    bottom: -30px; right: -30px;
    width: 160px; height: 160px;
    background: rgba(255,255,255,0.07);
    border-radius: 50%;
    pointer-events: none;
}
.menu-panel.is-open {
    transform: translateX(0);
}

/*------Menu entete-------*/
.menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px 12px 12px;
    border-bottom: 2px solid rgba(255,255,255,0.2);
    min-height: 72px;
}

.menu-donut-btn {
    width: 46px;
    height: 46px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    transition: transform 0.2s;
}
.menu-donut-btn img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 2px 5px rgba(0,0,0,0.3));
}
.menu-donut-btn:active {
    transform: scale(0.88) rotate(-10deg);
}

.menu-logo {
    width: 200px;
    height: auto;
    align-content: center;
    text-align: right;
}
.menu-logo em {
    display: block;
    font-style: italic;
    font-size: 11px;
    letter-spacing: 4px;
    color: white;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.25);
    font-family: 'Bangers', cursive;
}

/*------nav-------*/
nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 11px;
    padding: 24px 18px 0 18px;
}

.nav-item {
    display: block;
    font-family: 'Bangers', cursive;
    font-size: 20px;
    letter-spacing: 1px;
    text-align: center;
    padding: 11px 20px;
    border-radius: 50px;
    text-decoration: none;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease, filter 0.15s ease, box-shadow 0.15s ease;
}
.nav-item.yellow {
    background: var(--yellow);
    color: var(--text-yellow);
    box-shadow: 0 4px 0 var(--yellow-shadow);
}
.nav-item.pink {
    background: var(--pink);
    color: var(--text-pink);
    box-shadow: 0 4px 0 var(--pink-shadow);
}
.nav-item.visible {
    opacity: 1;
    transform: translateX(0);
}
.nav-item:hover {
    filter: brightness(1.08);
    transform: translateX(0) translateY(-2px) !important;
}
.nav-item.yellow:hover { box-shadow: 0 6px 0 var(--yellow-shadow); }
.nav-item.pink:hover   { box-shadow: 0 6px 0 var(--pink-shadow); }
.nav-item:active {
    transform: translateY(1px) !important;
    filter: brightness(0.97) !important;
}


/*==========================================================================================*/
/*  MENU — Version grand écran                                                              */
/*==========================================================================================*/

@media (min-width: 768px) {

    /* Bouton donut plus grand */
    .donut-btn {
        width: 140px;
    }

    /* Panel menu plus large */
    .menu-panel {
        width: 60vw;
        max-width: 420px;
        padding: 0 0 40px 0;
    }

    /* Header du menu */
    .menu-header {
        padding: 18px 24px 18px 20px;
        min-height: 100px;
    }

    /* Bouton donut dans le menu */
    .menu-donut-btn {
        width: 70px;
        height: 70px;
    }

    /* Logo dans le menu */
    .menu-logo {
        width: 260px;
    }

    /* Liens de navigation */
    nav {
        gap: 16px;
        padding: 30px 24px 0 24px;
    }

    .nav-item {
        font-size: 28px;
        padding: 16px 28px;
        letter-spacing: 2px;
    }
}

@media (min-width: 1024px) {

    .donut-btn {
        width: 160px;
    }

    .menu-panel {
        max-width: 480px;
    }

    .menu-donut-btn {
        width: 80px;
        height: 80px;
    }

    .menu-logo {
        width: 300px;
    }

    .nav-item {
        font-size: 32px;
        padding: 18px 32px;
    }

    nav {
        gap: 18px;
        padding: 36px 28px 0 28px;
    }
}