* {
    --primary: #323242;
    --primary-dark: #282832;
    --primary-light: #445;
    --accent: #55a;
    --text-color: #fff;

    color: var(--text-color);
    background: var(--primary);
    padding: 4px;
    margin: 2px;
    font-family: Arial, Verdana;
}

.horizontal-separator {
    width: 100%;
    height: 1px;
    padding: 0;
    margin: 4px 0;
    background-color: var(--primary-light);
}

.vertical-separator {
    width: 1px;
    height: 100%;
    padding: 0;
    margin: 0 4px;
    background-color: var(--primary-light);
}

#option-bar {
    height: 42px;
    display: flex;
    flex-direction: row;
    align-items: center;
}

/*CANVAS*/
#canvas-parent {
    display: flex;
}

canvas {
    padding: 0;
    margin: auto auto;
}

/*BUTTONS*/
button {
    background: var(--primary-dark);
    border: solid thin #888;
    border-radius: 8px;
    transition: background .1s;
}

button:hover {
    background: var(--primary-light);
}

button:active {
    background: var(--accent);
}

#topbar > button {
    margin: 0;
    padding: 8px;
    border-radius: 0;
    border: none;
}

#topbar > button:hover {
    background: var(--accent);
}

/* INPUT BOXES */
input {
    background-color: var(--primary-dark);
    border: none;
    border-radius: 8px;
    outline-width: 0;
    height: 26px;
    box-sizing: content-box;
    vertical-align: middle;
}

input:focus {
    outline: 1px solid;
}

#input-pen-color {
    width: 26px;
}

#button-clear-canvas {
    color: #faa;
}

#button-download-image {
    color: #afa;
}

/* CONTEXT MENUS*/
.context-menu-root {
    min-width: 120px;
    position: absolute;
    border: 1px solid var(--primary-light);
    display: flex;
    flex-direction: column;
    align-content: start;
    align-items: stretch;
}
.context-menu-item {
    margin: 0 1px;
    padding: 6px;
    border-radius: 4px;
    border: none;
    background-color: var(--primary);
    text-align: left;
}
.context-menu-item:hover {
    background: var(--primary-light);
}
.context-menu-item:active {
    background: var(--accent);
}

.end-padding {
    width: 100%;
    height: 200% + 200px;
    padding: 50px;
    margin: 50px;
    background: none;
}