.input-group-custom { margin-bottom: 1rem; }
        .result-value-lg { font-weight: 600; color: var(--primary-color); font-size: 2.6rem; }
        .deep-dive { margin: 1.8rem 0; }
        .deep-dive p { text-align: justify; }
        .unit-note { font-size: 0.9rem; color: #6c757d; }
        .coord-input { margin-bottom: 0.5rem; }
        .holiday-list { max-height: 200px; overflow-y: auto; border: 1px solid #ddd; border-radius: 6px; padding: 0.5rem; background: #fafafa; }
        .holiday-item { display: flex; justify-content: space-between; align-items: center; padding: 0.25rem 0.5rem; border-bottom: 1px solid #eee; font-size: 0.9rem; }
        .holiday-item:last-child { border-bottom: none; }
        .holiday-item .remove-holiday { color: #dc3545; cursor: pointer; padding: 0 0.25rem; }
        .holiday-item .remove-holiday:hover { color: #a71d2a; }
        .stat-card { background: #f8f9fa; border-radius: 8px; padding: 1rem; text-align: center; border: 1px solid #e9ecef; height: 100%; }
        .stat-card .stat-number { font-size: 2.2rem; font-weight: 700; color: var(--primary-color); }
        .stat-card .stat-label { font-size: 0.9rem; color: #6c757d; text-transform: uppercase; letter-spacing: 0.03em; }
        .stat-card .stat-icon { font-size: 1.8rem; color: var(--primary-color); opacity: 0.4; margin-bottom: 0.25rem; }
        .calendar-preview { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; max-width: 420px; margin: 1rem auto; font-size: 0.8rem; }
        .calendar-preview .day-label { font-weight: 600; text-align: center; padding: 0.25rem 0; color: #6c757d; font-size: 0.7rem; text-transform: uppercase; }
        .calendar-preview .day-cell { text-align: center; padding: 0.35rem 0; border-radius: 4px; background: #fff; border: 1px solid #f0f0f0; font-size: 0.8rem; }
        .calendar-preview .day-cell.weekend { background: #f8f0f0; color: #999; }
        .calendar-preview .day-cell.holiday { background: #fff3cd; color: #856404; }
        .calendar-preview .day-cell.working { background: #e8f5e9; color: #2e7d32; }
        .calendar-preview .day-cell.range-start { border-left: 3px solid var(--primary-color); }
        .calendar-preview .day-cell.range-end { border-right: 3px solid var(--primary-color); }
        .calendar-preview .day-cell.out-of-range { opacity: 0.3; }
        .preset-holidays { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.5rem 0; }
        .preset-holiday-btn { font-size: 0.75rem; padding: 0.2rem 0.6rem; border-radius: 12px; background: #e9ecef; border: none; color: #495057; transition: all 0.2s; }
        .preset-holiday-btn:hover { background: var(--primary-color); color: #fff; }
        .progress-bar-custom { height: 8px; border-radius: 4px; background: #e9ecef; margin: 0.5rem 0; overflow: hidden; }
        .progress-bar-custom .progress-fill { height: 100%; border-radius: 4px; background: var(--primary-color); transition: width 0.6s ease; }
        .date-range-display { font-family: 'Courier New', monospace; background: #f8f9fa; padding: 0.5rem 1rem; border-radius: 6px; display: inline-block; }
        @media (max-width: 576px) { .stat-card .stat-number { font-size: 1.6rem; } .calendar-preview { max-width: 100%; font-size: 0.7rem; } }
        .toast-custom { background: #fff; border-left: 4px solid var(--primary-color); box-shadow: 0 4px 12px rgba(0,0,0,0.15); padding: 12px 20px; border-radius: 6px; margin-bottom: 8px; min-width: 200px; animation: slideIn 0.3s ease; }
        .toast-custom.success { border-left-color: #28a745; }
        .toast-custom.error { border-left-color: #dc3545; }
        .toast-custom.warning { border-left-color: #ffc107; }
        @keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
        .toast-custom .toast-close { float: right; background: none; border: none; font-size: 1.2rem; cursor: pointer; color: #999; padding: 0 4px; }