/* ═══════════════════════════════════════════════════════════
   age_calculator.css — 人生格子图（两层嵌套）
   ═══════════════════════════════════════════════════════════ */

/* ── 外层容器：flex-wrap 让年份组自动换行 ── */
.age-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-content: flex-start;
    gap: 3px;
    margin: 0;
    width: 100%;
    padding: 5px;
    box-sizing: border-box;
}

/* ── 每个年份组（4×3 = 12 月，固定尺寸） ── */
.grid-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 1px;
    margin: 2px;
    width: 75px;
    height: 65px;
    border: 1px solid var(--border);
    box-sizing: border-box;
    padding: 1px;
    border-radius: 3px;
    transition: transform 0.15s;
}
.grid-group:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    z-index: 2;
}
[data-theme="dark"] .grid-group {
    border-color: var(--border);
}

/* ── 单格（1 个月） ── */
.grid-cell {
    width: 100%;
    height: 100%;
    background-color: #f8f9fa;
    transition: background-color 0.3s ease;
    box-sizing: border-box;
    border: 0.5px solid rgba(255,255,255,0.4);
}
.grid-cell.lived { }
.grid-cell.remaining { opacity: 0.6; }

/* ── 当前正在经历的月份：闪烁高亮 ── */
.grid-cell.current-month {
    position: relative;
    box-shadow: 0 0 0 2px #ff8f00;
    animation: gridBlink 1.6s ease-in-out infinite;
    z-index: 3;
}
@keyframes gridBlink {
    0%, 100% { box-shadow: 0 0 0 2px #ff8f00, 0 0 6px rgba(255,143,0,0.4); }
    50%      { box-shadow: 0 0 0 3px #ff8f00, 0 0 12px rgba(255,143,0,0.7); }
}

/* ── 格子 hover 增强 ── */
.grid-cell:hover {
    box-shadow: 0 0 0 1px rgba(99,102,241,0.6);
    cursor: pointer;
}
.grid-cell.current-month:hover {
    box-shadow: 0 0 0 3px #ff8f00, 0 0 14px rgba(255,143,0,0.8);
}