/***** Global *****/

:root {
    --bg: #1e1f22;
    --bg-secondary: #2b2d31;
    --panel: rgba(49, 51, 56, 0.78);
    --panel-strong: #313338;
    --border: rgba(255, 255, 255, 0.1);
    --text: #f2f3f5;
    --muted: #b5bac1;
    --accent: #5865f2;
    --accent-2: #7983f5;
    --accent-soft: rgba(88, 101, 242, 0.2);
    --success: #57f287;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "OpenSans", Helvetica, Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(
            circle at top left,
            rgba(88, 101, 242, 0.2),
            transparent 24%
        ),
        radial-gradient(
            circle at 85% 8%,
            rgba(121, 131, 245, 0.22),
            transparent 20%
        ),
        radial-gradient(
            circle at 10% 92%,
            rgba(88, 101, 242, 0.16),
            transparent 26%
        ),
        var(--bg);
}

::selection {
    color: #ffffff;
    background: rgba(0, 0, 0, 0.5);
}

div#root {
    overflow-x: hidden;
    min-height: 100vh;
}

.master {
    position: relative;
    overflow: hidden;
    background: linear-gradient(
        180deg,
        rgba(30, 31, 34, 0) 0%,
        rgba(30, 31, 34, 0.24) 100%
    );

    &::before {
        content: "";
        position: absolute;
        inset: 0;
        background:
            linear-gradient(
                120deg,
                rgba(30, 31, 34, 0.9),
                rgba(43, 45, 49, 0.48)
            );
        opacity: 0.17;
        z-index: -1;
        filter: saturate(0.75);
    }
}

.head {
    width: min(900px, 90%);
    margin: 0 auto 3rem;
    padding: 4.5rem 0 1rem;
    text-align: center;

    h1 {
        margin-bottom: 0.6rem;
        text-transform: uppercase;
        letter-spacing: 0.18em;
        font-family: "HelveticaNeuBold", sans-serif;
        font-size: clamp(1.8rem, 4vw, 2.8rem);
        color: var(--text);
        text-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    }

    h4 {
        margin: 0 auto 1rem;
        max-width: 760px;
        font-size: clamp(1rem, 2.2vw, 1.35rem);
        color: var(--muted);
        font-family: "OpenSans", Helvetica, Arial, sans-serif;
        line-height: 1.7;
    }

    hr {
        width: 90px;
        margin: 0 auto;
        border: 0;
        height: 2px;
        background: linear-gradient(
            90deg,
            transparent,
            var(--accent),
            transparent
        );
        transition: width 0.35s ease;
    }

    &:hover hr {
        width: 220px;
    }
}

/***** Responsive Mobile *****/

@media screen and (max-width: 768px) {
    .head {
        padding-top: 3rem;

        h1,
        h4 {
            width: 100%;
            margin: 0 auto 1rem;
        }
    }
}

/***** Responsive Tablette *****/

@media screen and (max-width: 990px) and (min-width: 769px) {
    .head h1,
    .head h4 {
        width: 100%;
        margin: 0 auto 1rem;
    }
}