* {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    box-sizing: border-box;
}

:root {
    /* COLLECTIVE BACKGROUND COLORS */
    --bg: hsl(220, 70%, 5%);
    --secondary-bg: hsl(220, 35%, 11%);
    --elevated-bg: hsl(220, 30%, 14%);

    /* BORDER COLORS */
    --border: hsla(0, 0%, 100%, 0.06);
    --secondary-border: hsl(191, 100%, 60%);
    --third-border: hsl(0, 0%, 14%);
    --fourth-border: hsl(0, 0%, 100%);

    /* SINGLE BACKGROUND COLORS */
    --accent: hsl(191, 100%, 60%);
    --accent-dark: hsl(191, 100%, 48%);
    --accent-light: hsl(191, 100%, 72%);
    --secondary-accent: hsl(0, 0%, 100%);

    /* HOVER COLORS */
    --hover-bg: hsl(191, 100%, 60%);
    --hover-border: hsl(191, 100%, 65%);
    --hover-secondary-border: hsl(0, 0%, 100%);
    --hover-main-text: hsl(0, 0%, 100%);
    --hover-secondary-text: hsl(0, 0%, 85%);

    /* TEXT COLORS */
    --main-text: hsl(0, 0%, 100%);
    --secondary-text: hsl(0, 0%, 80%);
    --third-text: hsl(0, 0%, 60%);
    --fourth-text: hsl(0, 0%, 10%);

    /* PROGRESS COLORS */
    --progress-container: hsl(220, 20%, 18%);
    --progress-bar: hsl(198, 76%, 47%);

    /* GRADIENTS */
    --gradient-primary:
        linear-gradient(135deg,
            hsl(220, 35%, 14%),
            hsl(220, 35%, 9%));

    --gradient-secondary:
        linear-gradient(180deg,
            rgba(255, 255, 255, 0.03),
            rgba(255, 255, 255, 0.01));

    --gradient-accent:
        linear-gradient(180deg,
            var(--accent-light),
            var(--accent-dark));


    /* SHADOWS */
    --shadow-sm:
        0 4px 10px rgba(0, 0, 0, 0.25);

    --shadow-md:
        0 10px 30px rgba(0, 0, 0, 0.35);

    --shadow-lg:
        0 18px 40px rgba(0, 0, 0, 0.5);

    --shadow-accent:
        0 8px 24px hsla(191, 100%, 60%, 0.35);


    /* GLASS/HIGHLIGHTS */
    --glass-highlight:
        inset 0 1px 0 rgba(255, 255, 255, 0.05);

    --glass-border:
        rgba(255, 255, 255, 0.08);

        
    /* TRANSITIONS */
    --transition-fast: 0.2s ease;
    --transition-main: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.container {
    height: fit-content;
    width: fit-content;
    border: 2px solid var(--border);
    border-radius: 15px;
    background: var(--elevated-bg);
    padding: 30px;
}

.content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.signin-header {
    text-align: center;
    color: var(--accent);
    margin-bottom: 40px;
}

#email,
#password {
    width: 500px;
    height: 30px;
    margin: 8px 0 8px 0;
}

.form-group-email input,
.form-group-password input {
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px solid var(--border);
    border-radius: 15px;
    padding: 20px 0 20px 10px;
    font-weight: bold;
    font-size: 16px;
}
    
.submit-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    width: 300px;
    height: 30px;
    border: 2px solid var(--secondary-border);
    border-radius: 15px;
    background-color: var(--accent);
    font-weight: bold;
    font-size: 16px;
    cursor: pointer;
}

.other {
    margin-top: 20px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.sign-up {
    color: var(--main-text);
    text-decoration: none;
}

.sign-up a {
    color: var(--accent);
    text-decoration: none;
}

.sign-up a:visited {
    color: var(--accent);
    text-decoration: none;
}

.forgotten-password a {
    color: var(--accent);
    text-decoration: none;
}

.forgotten-password a:visited {
    color: var(--accent);
    text-decoration: none;
}

/* TAKE THIS AWAY AFTER DEVELOPMENT */
.home {
    margin-bottom: 20px;
}

.home a {
    text-decoration: none;
    color: var(--main-text);
    font-weight: bold;
}

.home a:visited {
    text-decoration: none;
    color: var(--main-text);
}
/* TAKE THIS AWAY AFTER DEVELOPMENT */


@media (max-width: 600px) {
    .container {
        width: 330px;
    }

    .signin-header {
        margin-bottom: 5px;
    }

    #email,
    #password {
        width: 100%;
        margin-bottom: 0;
    }

    .submit-btn {
        width: 250px;
    }

    .other {
        display: flex;
        flex-direction: column;
    }

}