:root {
    --gutter: 10px;
    --min-pane: 150px;
    --nimbrewWhite:#f8f7ff;
    --nimbrewGrey: #404c52;
    --nimbrewText: #003049;
    --nimbrewBlack: #222222;
    --color1: #f8eae9;
    --color2: #e78f87;
    --color3: #A72F2F;
    --color4: #5A1A1A;
}

html,
body {
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    flex-direction: column;
    background: var(--nimbrewBlack);
    color: #e6eef8;
}

header {
    padding: 12px 18px;
    border-bottom: 3px solid var(--color3);
    background: var(--nimbrewBlack);
    display: flex;
    align-items: center;
    gap: 12px;
}

header .header {
    flex-grow: 1;
}

header h1 {
    font-size: 16px;
    margin: 0;
    font-family: beaufort-pro;
    font-weight:900;
    font-size: 25pt;
    color: var(--nimbrewWhite);
}

header p {
    margin: 0;
    font-size: 14pt;
    font-family: "Avenir Condensed";
    color: var(--nimbrewWhite);
}

header button {
    background: var(--nimbrewBlack);
    border: 1px solid var(--nimbrewGrey);
    border-radius: 4px;
    color: var(--nimbrewWhite);
    font-size: 12pt;
    font-family: beaufort-pro;
    padding: 4px 8px;
    font-weight:900;
    cursor: pointer;
    transition:0.2s;
}

header button:hover{
    background: var(--color4);
    border: 1px solid var(--color3);
}

header button:active{
    transform: scale(0.95);
}


.split-container {
    height: calc(100vh - 64px);
    display: grid;
    grid-template-columns: 1fr var(--gutter) 1fr;
    user-select: none;
    overflow: hidden;
}

.pane {
    padding: 12px;
    box-sizing: border-box;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
    border-right: 1px solid var(--color4);
    display: flex;
    flex-direction: column;
}


.CodeMirror {
    flex: 1;
    height: 100%;
    background: transparent;
    color: #e6eef8;
    font-family: monospace;
    font-size: 14px;
}

.CodeMirror-scroll {
    overflow: auto;
}

.preview {
    background: grey;
    color: #111;
    border-left: 1px solid var(--color4);
    padding: 0;
}

.preview iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.gutter {
    background: var(--nimbrewBlack);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: col-resize;
    opacity: 0.5;
}

.gutter .handle {
    width: 6px;
    height: 60px;
    background: var(--color3);
    border-radius: 2px;
}

.editor-tabs {
    display: flex;
    gap: 6px;
    margin-bottom:0;
}

.editor-tabs button {
    flex: 1;
    padding: 6px 10px;
    background: var(--nimbrewBlack);
    border: 1px solid var(--nimbrewGrey);
    color: var(--muted);
    cursor: pointer;
    border-radius: 6px;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    transition: 0.1s;
    font-family: beaufort-pro;
    font-weight:900;
    font-size: 14pt;
    text-transform: uppercase;
    flex-grow: 0;
    display:flex;
    gap: 8px;
    align-items: center;
}

.editor-tabs button i {
    font-size: 18px;
}

.editor-tabs button.active {
    border-color: var(--color3);
    background: var(--color4);
    color: var(--nimbrewWhite);
}