:root {
    --logo-top: clamp(0.375rem, 1vh, 1.25rem);
    --logo-size: clamp(10rem, 27vmin, 18.75rem);
    --logo-half-size: clamp(5rem, 13.5vmin, 9.375rem);
    --logo-center: calc(var(--logo-top) + var(--logo-half-size));
    --navbar-height: clamp(3.375rem, 9vmin, 6rem);
    --button-font-size: clamp(0.75rem, 1vw, 1rem);
    --button-padding-y: clamp(0.625rem, 1.5vh, 0.875rem);
    --button-padding-x: clamp(1.125rem, 2vw, 2rem);
    --button-radius: clamp(0.625rem, 0.929vw, 1rem);
    --separator-font-size: clamp(1.125rem, 1.935vw, 1.75rem);
    --greeting-font-size: clamp(1.25rem, 2vw, 2rem);
    --line-height: clamp(0.125rem, 0.223vh, 0.1875rem);
    --border-size: clamp(0.5px, 0.077vw, 1.5px);
}

@media (max-width: 68.75rem), (max-height: 42.5rem) {
    :root {
        --logo-size: clamp(6.25rem, 20vmin, 15rem);
        --logo-half-size: clamp(3.125rem, 10vmin, 7.5rem);
        --logo-center: calc(var(--logo-top) + var(--logo-half-size));
        --navbar-height: clamp(2.5rem, 7.5vmin, 4.5rem);
        --button-font-size: clamp(0.65rem, 0.9vw, 0.9rem);
        --button-padding-y: clamp(0.4rem, 1.2vh, 0.75rem);
        --button-padding-x: clamp(0.75rem, 1.5vw, 1.5rem);
        --separator-font-size: clamp(0.85rem, 1.5vw, 1.25rem);
    }
}

* {
    -webkit-tap-highlight-color: transparent;
}

.button-mes-projets,
.button-langages,
.button-à-propos,
.button-liens,
.menu-burger,
.logo {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

.navbar-gauche,
.navbar-droite {
    position: fixed;
    pointer-events: none;
    width: 35%;
    height: var(--navbar-height);
    background-color: rgba(190, 179, 218, 0.3);
    border: var(--border-size) solid rgba(245, 238, 234, 0.1);
    border-radius: clamp(0.75rem, 1.161vw, 1.25rem);
    top: var(--logo-center);
    transition: height 0.4s ease, top 0.4s ease, border-radius 0.4s ease;
}

.navbar-gauche {
    transform: translate(-5%, -50%);
    left: 5%;
}

.navbar-droite {
    transform: translate(-95%, -50%);
    left: 95%;
}

.button-mes-projets,
.button-langages,
.button-à-propos,
.button-liens {
    position: fixed;
    background: rgba(40, 38, 85, 0.35);
    border: var(--border-size) solid rgba(245, 238, 234, 0.12);
    font-family: monospace;
    font-size: var(--button-font-size);
    font-weight: bold;
    padding: var(--button-padding-y) var(--button-padding-x);
    cursor: pointer;
    color: #F5EEEA;
    border-radius: var(--button-radius);
    transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.2s ease, font-size 0.4s ease, padding 0.4s ease, top 0.4s ease;
    top: var(--logo-center);
}

.button-mes-projets { left: 6.2%; transform: translateY(-50%); }
.button-langages { left: 24.8%; transform: translateY(-50%); }
.button-à-propos { left: 64.2%; transform: translateY(-50%); }
.button-liens { left: 82%; transform: translateY(-50%); }

@media (hover: hover) and (pointer: fine) {
    .button-mes-projets:hover,
    .button-langages:hover,
    .button-à-propos:hover,
    .button-liens:hover {
        color: #F5EEEA;
        background-color: rgba(92, 86, 155, 0.65);
        border-color: rgba(245, 238, 234, 0.2);
        transform: translateY(calc(-50% - clamp(0.5px, 0.111vh, 2px)));
    }
}

.button-mes-projets:active, .button-mes-projets.tap-active,
.button-langages:active, .button-langages.tap-active,
.button-à-propos:active, .button-à-propos.tap-active,
.button-liens:active, .button-liens.tap-active {
    background-color: rgba(198, 183, 215, 0.35);
    border-color: rgba(198, 183, 215, 0.5);
    transform: translateY(-50%) scale(0.95);
}

.point-entre-projets-langages,
.point-entre-à-propos-liens {
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    height: var(--navbar-height);
    font-family: monospace;
    font-size: var(--separator-font-size);
    color: #afaaa7;
    top: calc(var(--logo-center) - 0.2vh);
    transform: translate(-50%, -50%);
    line-height: 1;
    margin: 0;
    transition: font-size 0.4s ease, height 0.4s ease, top 0.4s ease;
}

.point-entre-projets-langages { left: 20.75%; }
.point-entre-à-propos-liens { left: 77.5%; }

.logo {
    position: fixed;
    width: var(--logo-size);
    height: var(--logo-size);
    top: var(--logo-top);
    left: 50%;
    transform: translateX(-50%) scale(1);
    transform-origin: center center;
    filter: drop-shadow(0 0 clamp(0.5rem, 0.774vw, 1rem) rgba(245, 238, 234, 0.4));
    transition: filter 0.3s ease-in-out, transform 0.2s ease-out, width 0.4s ease, height 0.4s ease, top 0.4s ease;
    cursor: pointer;
}

@media (hover: hover) and (pointer: fine) {
    .logo:hover {
        filter: drop-shadow(0 0 clamp(0.75rem, 1.161vw, 1.5rem) rgba(245, 238, 234, 0.6));
    }
}

.logo:active,
.logo.tap-active {
    filter: drop-shadow(0 0 clamp(1rem, 1.548vw, 2rem) #CCB1AB);
    transform: translateX(-50%) scale(0.97);
}

.salut-binou30 {
    position: absolute;
    left: 50%;
    top: calc(var(--logo-center) + var(--logo-half-size) + clamp(1.5rem, 4vh, 2.75rem));
    transform: translate(-50%, -50%);
    font-family: monospace;
    font-size: var(--greeting-font-size);
    line-height: 1;
    white-space: nowrap;
    transition: top 0.4s ease;
}

.salut {
    display: inline-block;
    color: #afaaa7;
    vertical-align: bottom;
}

.typewritter-Binou30 {
    display: inline-block;
    vertical-align: bottom;
    overflow: hidden;
    white-space: nowrap;
    border-right: clamp(0.125rem, 0.232vw, 0.25rem) solid #F5EEEA;
    color: #F5EEEA;
    animation: typing 2s steps(8) 1 forwards, blink 0.5s step-end infinite alternate;
}

@keyframes typing {
    from { width: 0; }
    to { width: 8ch; }
}

@keyframes blink {
    50% { border-color: transparent; }
}

.bottom-binou30 {
    position: absolute;
    left: 50%;
    top: calc(var(--logo-center) + var(--logo-half-size) + clamp(3.25rem, 7.5vh, 5rem));
    background-color: #CCB1AB;
    width: 90%;
    height: var(--line-height);
    border: none;
    transform-origin: center;
    transform: translateX(-50%) scaleX(0);
    animation: tracerLigne 1.5s ease-in-out forwards;
    transition: top 0.4s ease;
}

@keyframes tracerLigne {
    0% { transform: translateX(-50%) scaleX(0); opacity: 0; }
    100% { transform: translateX(-50%) scaleX(1); opacity: 1; }
}

body {
    background: linear-gradient(to right, #23243C, #4B516B);
    animation: fadeIn 1.2s ease-out forwards;
    opacity: 0;
    overflow-x: hidden;
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(1.671vh); }
    100% { opacity: 1; transform: translateY(0); }
}

.menu-burger {
    display: none;
}

@media (max-width: 56.25rem), (max-height: 29.75rem) {
    html {
        min-height: 100%;
        background-color: #23243C;
    }

    body {
        box-sizing: border-box;
        position: relative;
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        grid-template-areas:
            "logo"
            "greeting"
            "line";
        align-content: start;
        min-height: 100svh;
        margin: 0;
        padding: 1rem;
        padding:
            max(1rem, env(safe-area-inset-top))
            max(1rem, env(safe-area-inset-right))
            max(1rem, env(safe-area-inset-bottom))
            max(1rem, env(safe-area-inset-left));
        gap: clamp(1.25rem, 3.5vw, 2rem); 
        overflow-x: hidden;
    }

    body > *,
    .navigation-principale > * {
        box-sizing: border-box;
    }

    .navigation-principale {
        display: contents;
    }

    .navbar-gauche,
    .navbar-droite,
    .point-entre-projets-langages,
    .point-entre-à-propos-liens {
        display: none;
    }

    .logo {
        position: static;
        grid-area: logo;
        justify-self: center;
        width: clamp(5rem, 15vmin, 8rem);
        height: clamp(5rem, 15vmin, 8rem);
        margin: 0;
        transform: none;
        filter: drop-shadow(0 0 clamp(0.5rem, 1.5vw, 0.875rem) rgba(245, 238, 234, 0.4));
    }

    @media (hover: hover) and (pointer: fine) {
        .logo:hover {
            filter: drop-shadow(0 0 clamp(0.75rem, 2vw, 1rem) rgba(245, 238, 234, 0.6));
        }
    }

    .logo:active,
    .logo.tap-active {
        filter: drop-shadow(0 0 clamp(1rem, 1.548vw, 2rem) #CCB1AB);
        transform: scale(0.97);
    }

    .button-mes-projets,
    .button-langages,
    .button-à-propos,
    .button-liens {
        position: static;
        inset: auto;
        width: 100%;
        min-width: 0;
        min-height: 2.75rem;
        padding: clamp(0.625rem, 2vw, 0.875rem) clamp(0.75rem, 2.5vw, 1.25rem);
        font-size: clamp(0.875rem, 2.1vw, 1rem);
        line-height: 1.2;
        transform: none;
        display: none; 
    }

    .button-mes-projets { grid-area: projects; }
    .button-langages { grid-area: languages; }
    .button-à-propos { grid-area: about; }
    .button-liens { grid-area: links; }

    @media (hover: hover) and (pointer: fine) {
        .button-mes-projets:hover,
        .button-langages:hover,
        .button-à-propos:hover,
        .button-liens:hover {
            transform: translateY(-0.125rem);
        }
    }

    .button-mes-projets:active,
    .button-mes-projets.tap-active,
    .button-langages:active,
    .button-langages.tap-active,
    .button-à-propos:active,
    .button-à-propos.tap-active,
    .button-liens:active,
    .button-liens.tap-active {
        transform: scale(0.95);
    }

    .salut-binou30 {
        position: static;
        grid-area: greeting;
        justify-self: center;
        align-self: center;
        width: auto;
        margin: 0;
        font-size: clamp(1rem, 4vw, 1.5rem);
        line-height: 1;
        text-align: center;
        white-space: nowrap;
        transform: none;
    }

    .salut { display: inline; vertical-align: baseline; }

    .typewritter-Binou30 {
        display: inline-block;
        max-width: 100%;
        vertical-align: bottom;
        border-right-width: clamp(0.125rem, 0.5vw, 0.1875rem);
    }

    .bottom-binou30 {
        position: static;
        grid-area: line;
        justify-self: center;
        width: min(100%, 42rem);
        height: 0.125rem;
        margin: 0;
        transform: translateX(0) scaleX(0);
    }

    @keyframes tracerLigne {
        0% { transform: scaleX(0); opacity: 0; }
        100% { transform: scaleX(1); opacity: 1; }
    }

    .menu-burger {
        position: absolute;
        z-index: 1;
        top: max(1rem, env(safe-area-inset-top));
        right: max(1rem, env(safe-area-inset-right));
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 3rem;
        height: 3rem;
        padding: 0;
        color: #F5EEEA;
        background: rgba(40, 38, 85, 0.55);
        border: var(--border-size) solid rgba(245, 238, 234, 0.2);
        border-radius: var(--button-radius);
        cursor: pointer;
        transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
    }

    @media (hover: hover) and (pointer: fine) {
        .menu-burger:hover {
            background-color: rgba(92, 86, 155, 0.65);
            border-color: rgba(245, 238, 234, 0.35);
            transform: translateY(-0.125rem);
        }
    }

    .menu-burger:active {
        background-color: rgba(198, 183, 215, 0.35);
        transform: scale(0.95);
    }

    .menu-burger:focus-visible {
        outline: 0.1875rem solid #CCB1AB;
        outline-offset: 0.1875rem;
    }

    .menu-burger-icone {
        display: grid;
        gap: 0.25rem;
        width: 1.375rem;
    }

    .menu-burger-icone span {
        display: block;
        width: 100%;
        height: 0.125rem;
        background-color: currentColor;
        border-radius: 999px;
        transition: transform 0.2s ease, opacity 0.2s ease;
    }

    body.menu-ouvert .menu-burger-icone span:nth-child(1) {
        transform: translateY(0.375rem) rotate(45deg);
    }

    body.menu-ouvert .menu-burger-icone span:nth-child(2) {
        opacity: 0;
    }

    body.menu-ouvert .menu-burger-icone span:nth-child(3) {
        transform: translateY(-0.375rem) rotate(-45deg);
    }

    body.menu-ouvert {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        grid-template-areas:
            "logo logo"
            "projects languages"
            "about links"
            "greeting greeting"
            "line line";
        gap: clamp(1.25rem, 3.5vw, 2rem);
    }

    body.menu-ouvert .navigation-principale .button-mes-projets,
    body.menu-ouvert .navigation-principale .button-langages,
    body.menu-ouvert .navigation-principale .button-à-propos,
    body.menu-ouvert .navigation-principale .button-liens {
        display: block;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}