/* Code editor surfaces */
#pythonEditor,
#commonTestEditor {
    flex: 1;
    min-height: 0;
    overflow: visible;
    display: flex;
    flex-direction: column;
}

#pythonEditor {
    --editor-font-size: 14.5px;
    --editor-gutter-font-size: 13px;
}

#commonTestEditor {
    --editor-font-size: 14px;
    --editor-gutter-font-size: 13px;
}

#output {
    line-height: 1.55;
}

.CodeMirror {
    flex: 1;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: var(--editor-font-size, 14px);
    min-height: 0;
    overflow: visible;
}

#pythonEditor .CodeMirror,
#commonTestEditor .CodeMirror {
    flex: 1;
    min-height: 0;
    position: relative;
}

.CodeMirror-focused {
    border-color: #3498db;
}

.CodeMirror-scroll {
    overflow: auto !important;
    overflow-x: auto !important;
    overflow-y: auto !important;
    min-height: 0 !important;
    box-sizing: border-box;
    position: relative;
}

.CodeMirror-sizer {
    position: relative !important;
    min-height: inherit !important;
}

.CodeMirror-lines {
    padding: 4px 0 !important;
    min-height: inherit !important;
}

.CodeMirror-cursors {
    z-index: 3;
}

.CodeMirror-cursor {
    border-left: 1px solid #f8f8f0;
}

.CodeMirror-code {
    padding-bottom: 0 !important;
}

/* Line number gutter */
#pythonEditor .CodeMirror-gutters,
#commonTestEditor .CodeMirror-gutters {
    background-color: #263238;
    border-right: 1px solid #37474f;
}

#pythonEditor .CodeMirror-linenumbers,
#commonTestEditor .CodeMirror-linenumbers {
    min-width: 40px;
}

#pythonEditor .CodeMirror-linenumber,
#commonTestEditor .CodeMirror-linenumber {
    color: #90a4ae;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: var(--editor-gutter-font-size, 13px);
    padding: 0 8px 0 5px;
}

/* Scrollbars */
.CodeMirror-vscrollbar,
.CodeMirror-hscrollbar {
    outline: none;
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    z-index: 1000;
}

.CodeMirror-vscrollbar {
    right: 0 !important;
    top: 0 !important;
    width: 18px !important;
}

.CodeMirror-hscrollbar {
    bottom: 0 !important;
    left: 0 !important;
    height: 18px !important;
}

.CodeMirror-scrollbar-filler {
    background-color: #f5f5f5;
    width: 18px !important;
    height: 18px !important;
}

.CodeMirror-scrollbar-filler,
.CodeMirror-gutter-filler {
    background-color: white;
}

.CodeMirror-vscrollbar > div {
    background: #ccc !important;
    border-radius: 3px !important;
    width: 8px !important;
    margin: 2px !important;
}

.CodeMirror-hscrollbar > div {
    background: #ccc !important;
    border-radius: 3px !important;
    height: 8px !important;
    margin: 2px !important;
}

.CodeMirror-vscrollbar:hover > div,
.CodeMirror-hscrollbar:hover > div {
    background: #999 !important;
}

/* Autocomplete popup */
.CodeMirror-hints {
    z-index: 20000;
    border-radius: 6px;
    border: 1px solid #4b5563;
    background: #1f2937;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
}

.CodeMirror-hint {
    color: #f8fafc;
    padding: 6px 10px;
    max-width: 520px;
}

li.CodeMirror-hint-active {
    background: #2563eb;
    color: #ffffff;
}

.autocomplete-label {
    font-weight: 700;
}

.autocomplete-detail {
    color: #cbd5e1;
    font-size: 11px;
    margin-left: 8px;
}

.autocomplete-kind {
    display: inline-block;
    color: #bae6fd;
    background: rgba(14, 165, 233, 0.18);
    border: 1px solid rgba(125, 211, 252, 0.28);
    border-radius: 999px;
    font-size: 10px;
    line-height: 1;
    margin-left: 8px;
    padding: 2px 5px;
    vertical-align: 1px;
}

li.CodeMirror-hint-active .autocomplete-detail {
    color: #dbeafe;
}

li.CodeMirror-hint-active .autocomplete-kind {
    color: #eff6ff;
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.28);
}

/* Python indentation readability */
#pythonEditor .CodeMirror {
    line-height: 1.55;
}

#pythonEditor .CodeMirror pre.CodeMirror-line,
#pythonEditor .CodeMirror pre.CodeMirror-line-like {
    tab-size: 4;
}

#pythonEditor .CodeMirror-activeline-background {
    background: rgba(80, 119, 144, 0.18);
}

#pythonEditor .CodeMirror-activeline-gutter {
    background: #1f3039;
}

#pythonEditor .CodeMirror-activeline-gutter .CodeMirror-linenumber {
    color: #e2f0f7 !important;
    font-weight: 700;
}

#pythonEditor .python-leading-indent {
    background-image:
        repeating-linear-gradient(
            to right,
            transparent 0 calc(4ch - 1px),
            rgba(148, 163, 184, 0.56) calc(4ch - 1px) 4ch
        ),
        radial-gradient(circle, rgba(203, 213, 225, 0.32) 0 0.95px, transparent 1.15px);
    background-position: 0 0, 0.48ch 55%;
    background-repeat: repeat-x, repeat-x;
    background-size: 4ch 100%, 1ch 100%;
}

#pythonEditor .python-leading-indent-active {
    background-image:
        repeating-linear-gradient(
            to right,
            transparent 0 calc(4ch - 2px),
            rgba(96, 165, 250, 0.95) calc(4ch - 2px) 4ch
        ),
        radial-gradient(circle, rgba(147, 197, 253, 0.58) 0 1.05px, transparent 1.25px);
    background-color: rgba(96, 165, 250, 0.08);
}

#pythonEditor .python-leading-indent-partial {
    background-color: rgba(245, 158, 11, 0.12);
}