.input-group-custom {
            margin-bottom: 1rem;
        }.author-bio{display:block}
        .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;
        }
        .time-display-box {
            background-color: #f8f9fa;
            border-radius: 12px;
            padding: 1.5rem;
            text-align: center;
            border: 1px solid #e9ecef;
            margin: 0.5rem 0;
        }
        .time-display-box .display-time {
            font-size: 3.5rem;
            font-weight: 700;
            font-family: 'Courier New', monospace;
            color: #1a1a2e;
            letter-spacing: 2px;
        }
        .time-display-box .display-label {
            font-size: 0.9rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .time-components {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 1rem 0;
            flex-wrap: wrap;
        }
        .time-component {
            background: white;
            border-radius: 8px;
            padding: 0.5rem 1.2rem;
            border: 1px solid #e9ecef;
            min-width: 80px;
            text-align: center;
        }
        .time-component .number {
            font-size: 1.8rem;
            font-weight: 700;
            color: #1a1a2e;
        }
        .time-component .label {
            font-size: 0.75rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .conversion-direction {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            margin: 0.5rem 0;
            font-size: 0.9rem;
            color: #6c757d;
        }
        .conversion-direction .arrow {
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .input-large {
            font-size: 1.5rem;
            padding: 0.75rem 1rem;
            text-align: center;
        }
        .input-large:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(70, 130, 180, 0.25);
        }
        .result-card {
            background: white;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            border: 1px solid #e9ecef;
            margin-top: 1rem;
        }
        .result-card .label-text {
            font-size: 0.85rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .result-card .value-text {
            font-size: 2.2rem;
            font-weight: 700;
            color: #1a1a2e;
            font-family: 'Courier New', monospace;
        }
        .badge-time {
            background-color: rgba(70, 130, 180, 0.12);
            color: var(--primary-color);
            font-weight: 500;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        .time-equivalence {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            padding: 0.5rem 0;
        }
        .time-equivalence .eq-item {
            background: white;
            padding: 0.5rem 1.2rem;
            border-radius: 6px;
            border: 1px solid #e9ecef;
            font-size: 0.95rem;
        }
        .time-equivalence .eq-item strong {
            color: var(--primary-color);
        }
        .input-group-text-custom {
            background-color: #f8f9fa;
            border: 1px solid #ced4da;
            border-radius: 4px 0 0 4px;
            padding: 0.375rem 0.75rem;
            font-weight: 500;
            color: #495057;
        }
        .swap-btn {
            background: none;
            border: none;
            color: var(--primary-color);
            font-size: 1.4rem;
            cursor: pointer;
            transition: transform 0.2s;
            padding: 0.25rem 0.5rem;
        }
        .swap-btn:hover {
            transform: rotate(180deg);
        }
        .section-divider {
            border-top: 2px solid #f0f0f0;
            margin: 2rem 0;
        }
        .history-timeline {
            padding-left: 1.5rem;
            border-left: 3px solid var(--primary-color);
            margin: 1rem 0;
        }
        .history-timeline li {
            margin-bottom: 0.5rem;
            list-style-type: none;
            position: relative;
        }
        .history-timeline li::before {
            content: "•";
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: -1.2rem;
        }