/* Container: flex layout with day labels on left */
.heatmap-container {
    display: flex;
    align-items: flex-start;
    gap: 4px;
    position: relative;
}

/* Day labels — fixed left column */
.heatmap-day-labels {
    display: grid;
    grid-template-rows: repeat(7, 10px);
    gap: 3px;
    flex-shrink: 0;
    margin-top: 16px;
    width: 14px;
    font-size: 9px;
    color: #767676;
}

.heatmap-day-label {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

/* Main area: month labels + grid */
.heatmap-main {
    flex: 1;
    min-width: 0;
}

/* Month labels */
.heatmap-month-labels {
    display: grid;
    grid-template-columns: repeat(var(--heatmap-cols, 20), 10px);
    gap: 0 3px;
    margin-bottom: 2px;
    font-size: 9px;
    color: #767676;
    height: 14px;
}

.heatmap-month-label {
    overflow: visible;
    white-space: nowrap;
}

/* Grid */
.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(var(--heatmap-cols, 20), 10px);
    grid-template-rows: repeat(7, 10px);
    gap: 3px;
    grid-auto-flow: column;
}

/* Navigation buttons */
.heatmap-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex-shrink: 0;
    margin-top: 45px;
}

.heatmap-nav-btn {
    width: 14px;
    height: 14px;
    padding: 0;
    border: none;
    border-radius: 3px;
    background: #d0d7de;
    color: #57606a;
    font-size: 8px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
}

.heatmap-nav-btn:hover:not(.heatmap-nav-btn--disabled) {
    background: #afb8c1;
}

.heatmap-nav-btn--disabled {
    background: #eaeef2;
    color: #c0c6cc;
    cursor: not-allowed;
    pointer-events: none;
}

/* Cells */
.heatmap-cell {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    transition: outline 0.1s;
}

.heatmap-cell:hover {
    outline: 1.5px solid rgba(0, 0, 0, 0.3);
    outline-offset: -1px;
}

.heatmap-level--1 {
    background-color: transparent;
    pointer-events: none;
}

/* Light mode colors */
.heatmap-level-0 { background-color: #ebedf0; }
.heatmap-level-1 { background-color: #9be9a8; }
.heatmap-level-2 { background-color: #40c463; }
.heatmap-level-3 { background-color: #30a14e; }
.heatmap-level-4 { background-color: #216e39; }

/* Tooltip */
.heatmap-tooltip {
    position: fixed;
    background: #24292e;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    pointer-events: none;
    z-index: 1000;
    white-space: nowrap;
    transform: translate(-50%, -100%);
    line-height: 1.4;
}

/* Legend */
.heatmap-legend {
    display: flex;
    align-items: center;
    gap: 3px;
    margin-top: 8px;
    font-size: 10px;
    color: #767676;
    justify-content: flex-end;
}

.heatmap-legend-cell {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

/* Dark mode */
.night .heatmap-level-0 { background-color: #2d333b; }
.night .heatmap-level-1 { background-color: #0e4429; }
.night .heatmap-level-2 { background-color: #006d32; }
.night .heatmap-level-3 { background-color: #26a641; }
.night .heatmap-level-4 { background-color: #39d353; }

.night .heatmap-tooltip { background: #545d68; }

.night .heatmap-month-labels,
.night .heatmap-day-labels,
.night .heatmap-legend { color: #768390; }

.night .heatmap-cell:hover { outline-color: rgba(255, 255, 255, 0.4); }

.night .heatmap-nav-btn {
    background: #373e47;
    color: #768390;
}

.night .heatmap-nav-btn:hover:not(.heatmap-nav-btn--disabled) {
    background: #444c56;
}

.night .heatmap-nav-btn--disabled {
    background: #2d333b;
    color: #545d68;
}