html,
body {
    margin: 0;
    height: 100%;
    background: #15181e;
    color: #eaeef4;
    font-family: Arial, Helvetica, sans-serif;
}

.page {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding: 16px;
}

#heatmap-panel,
#spiral-panel {
    flex: 1 1 0;
    min-width: 0;
}

svg {
    display: block;
    margin: 0 auto;
}

.day-group text {
    fill: #fff;
    font-size: 8px;
    text-anchor: middle;
    dominant-baseline: middle;
}

.seg {
    stroke: none;
}

/* 去除默认填充，颜色由元素属性控制 */
.letter-seg {
    fill: #9e9e9e;
}

.letter-seg.highlight {
    fill: #fff;
}

.letter-text {
    fill: #fff;
    font-size: 10px;
    font-weight: bold;
    text-anchor: middle;
    dominant-baseline: middle;
    pointer-events: none;
}

.seg-text {
    font-size: 10px;
    font-weight: bold;
    text-anchor: middle;
    dominant-baseline: middle;
    pointer-events: none;
}

.center-year {
    font-size: 40px;
    text-anchor: middle;
    dominant-baseline: middle;
    fill: #eaeef4;
    pointer-events: none;
}

.center-main {
    font-size: 20px;
    text-anchor: middle;
    dominant-baseline: middle;
    fill: #eaeef4;
    pointer-events: none;
}

.center-sub {
    font-size: 16px;
    text-anchor: middle;
    dominant-baseline: middle;
    fill: #b8c0cc;
    pointer-events: none;
}

.spiral-path {
    fill: none;
    stroke: #555;
    stroke-width: 0.6;
    pointer-events: none;
}

.spiral-edge {
    fill: none;
    stroke: #bdbdbd;
    stroke-width: 0.8;
    pointer-events: none;
}

.segment-edge {
    fill: none;
    stroke: #dcdcdc;
    stroke-width: 0.4;
    pointer-events: none;
}

/* Cross-highlight styles (stronger visibility) */
#heatmap-panel .cell.active {
    stroke: #00e5ff;
    stroke-width: 3px;
    vector-effect: non-scaling-stroke;
    filter: drop-shadow(0 0 4px #00e5ff);
}

#spiral-panel .seg.highlight {
    stroke: #00e5ff;
    stroke-width: 4.5px;
    vector-effect: non-scaling-stroke;
    filter: drop-shadow(0 0 10px #00e5ff);
}

/* Pulse animation: single 600ms breathe (fade in-out) */
@keyframes pulseFade {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }

    100% {
        opacity: 1;
    }
}

.pulse {
    animation: pulseFade 600ms ease-in-out 1;
}

/* Heatmap panel scoped styles (from index2.html) */
#heatmap-panel {
    --bg: #15181e;
    --panel: #1e2229;
    --text: #eaeef4;
    --muted: #a8b0bd;
    --grid: #2a2e37;
    --stroke: #121314;
}

#spiral-panel {
    background: #1e2229;
    border-radius: 10px;
    padding: 8px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, .35) inset;
}

#heatmap-panel .calendar-wrap {
    display: flex;
    flex-direction: column;
    gap: 18px
}

#heatmap-panel .calendar-year {
    background: var(--panel);
    padding: 12px 16px;
    border-radius: 10px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, .35) inset
}

#heatmap-panel .year-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px
}

#heatmap-panel .year-title {
    font-weight: 600;
    letter-spacing: .5px;
    color: var(--text)
}

#heatmap-panel svg {
    width: 100%;
    height: auto;
    display: block
}

#heatmap-panel .cell {
    stroke: var(--bg);
    stroke-width: 0px
}

#heatmap-panel .day-divider {
    position: absolute;
    left: -2px;
    width: 2px;
    height: 100%;
    background: #0a0a0a;
    z-index: 5;
}

#heatmap-panel .month-boundary {
    stroke: var(--stroke);
    stroke-width: 3;
    fill: none;
    opacity: .6
}

#heatmap-panel .dow-label {
    fill: var(--muted);
    font-size: 10px
}

#heatmap-panel .month-label {
    fill: var(--muted);
    font-size: 10px
}

#heatmap-panel .legend {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px
}

#heatmap-panel .legend .swatch {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    border: 1px solid var(--bg)
}

#heatmap-panel .legend .legend-text {
    font-size: 12px;
    color: var(--muted)
}

#heatmap-panel .tooltip {
    position: fixed;
    pointer-events: none;
    background: #11151b;
    color: #cfe3ff;
    border: 1px solid #223048;
    padding: 6px 8px;
    border-radius: 8px;
    font-size: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, .35);
    opacity: 0;
    transform: translate(-50%, -120%);
}

#spiral-panel .spiral-tooltip {
    position: fixed;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 1000;
    max-width: 200px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

#spiral-panel .spiral-tooltip strong {
    color: #fff;
    margin-bottom: 4px;
    display: block;
}