gnu-social/public/assets/css/base.css

:root {
    /* FONTS */
    --display-font: 'Manrope-ExtraBold', sans-serif;
    --main-font: 'Inter', sans-serif;

    /* UNITS
     * unit size      - every element should be a multiplier of this
     * main size      - used for headers and icons
     * medium size    - same as above, except that the element in question is contained in something else
     * small size     - used in common text, borders
     */
    --unit-size: 0.5rem;
    --main-size: 1.3rem;
    --medium-size: 1.15rem;
    --small-size: 1rem;

    /* colours and shadows */
    --bg1: #242434;
    --bg2: #46465E;
    --bg3: #8081BA;

    --translucent: #1A1A2666;
    --white: #FFFFFF;

    --shadow: 0px 0px 32px 0px #00000066;

    /* transitions and animations */
    --cubic-transition: all 200ms cubic-bezier(0, 0.55, 0.45, 1);
    --fade-in: fadeIn 200ms cubic-bezier(0, 0.55, 0.45, 1);
    --fade-out: fadeOut 200ms cubic-bezier(0, 0.55, 0.45, 1);
}

#instance:focus svg,
#instance:hover svg {
    fill: var(--bg1);
    transition: var(--cubic-transition);
}

/* DEFAULTS */
.bg {
    background-color: var(--bg3);
    background-image: url(../images/bg.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

#header {
    z-index: 1;

    font-size: var(--main-size);
    display: flex;
    justify-content: space-between;
    position: fixed;
    top: 0;
    background-color: var(--bg1);

    padding: var(--unit-size);
    width: 100%;
    align-items: center;

    box-shadow: var(--shadow);
}

#instance {
    display: flex;
    align-items: center;
}

.icon-logo {
    margin-right: var(--small-size);
    fill: var(--white);
}

/* CONTAINS ALL ELEMENTS BESIDES HEADER */
.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    /*margin-top: calc(3 * var(--small-size) + var(--main-size));*/
    margin-top: 3.3rem;
}

/* THE FOCUSED (middle) DIV */
.content {
    display: flex;
    flex-direction: column;
    margin-left: 20%;
    margin-right: 20%;
    padding: 0 var(--unit-size) 0 var(--unit-size);

    width: 100%;
    max-width: 60%;
}

/* NOTES */
.h-feed,
.notes {
    margin-top: var(--main-size);
}

.h-feed,
.notes hr {
    margin-top: var(--unit-size);
    margin-bottom: var(--main-size);
}

.h-entry,
.note {
    background-color: var(--translucent);
    border: solid 2px var(--bg2);
    border-radius: var(--unit-size);
}

.note-info {
    display: flex;
    border-radius: var(--unit-size);
    box-sizing: border-box;

    background-color: var(--translucent);
    font-size: var(--main-size);
    padding: var(--unit-size);
}

.note-info .avatar {
    width: auto;
    height: var(--main-size);
}

.note-content {
    padding: var(--small-size);
}
.note-content p {
    font-size: var(--medium-size);
    padding-left: var(--small-size);
    padding-right: var(--small-size);
}

.note-attachments {
    display: flex;
}

.note-attachments > figure {
    display: flex;
    flex-direction: column;
    margin: 0;
    border-radius: var(--unit-size);
    background-color: var(--translucent);
    padding: var(--small-size);
}

.note-attachments > figure figcaption {
    display: flex;
    padding-top: var(--small-size);
}

.note-attachments > figure img,
.note-attachments > figure video {
    width: 100%;
    height: auto;
}

/* SIDE PANELS */
.panel {
    font-size: var(--main-size);
}

.panel aside {
    animation: var(--fade-in);
    padding: var(--unit-size);


    box-sizing: border-box;
    width: 20%;

    display: flex;
    flex-direction: column;

    position: absolute;
    top: 100%;
}

.panel aside .footer {
    margin-top: auto;
}

.icon {
    fill: var(--white);
    vertical-align: middle;
}
.icon-left,
.icon-right {
    display: none;
}

/* MEDIA RESIZE */
@media (max-width: 1200px) {
    .icon-left,
    .icon-right {
        display: flex;
    }

    .content {
        margin: unset;
        max-width: 100%;
    }

    .panel aside {
        display: none;
    }

    .panel[open] {
        width: 100%;
        font-size: var(--main-size);
    }

    .panel[open] {
        all: unset;
        display: flex;
        flex-direction: column;
    }

    .panel aside {
        display: none;
    }

    .panel[open] aside {
        padding: var(--unit-size);
        box-sizing: border-box;
        width: 100%;
        height: 100vh;

        background-color: var(--bg3);
        background-image: url(../images/bg.png);
        background-position: center;
        background-repeat: no-repeat;
        background-size: 100% 100%;
        min-height: 100%;

        display: block !important;
    }
}

/* ANIMATIONS */
@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }

    100% {
        opacity: unset;
        transform: none;
    }
}

@keyframes fadeOut {
    100% {
        opacity: 0;
        transform: translateY(-10px);
    }

    0% {
        opacity: unset;
        transform: none;
    }
}