.tool-label {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-light);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 12px;
    }
    .tool-input {
        padding: 12px 16px;
        border: 1px solid var(--border-light);
        border-radius: 8px;
        font-size: 14px;
        background: var(--bg-light);
        color: var(--text-dark);
        transition: border-color 0.2s;
    }
    .tool-input:focus {
        outline: none;
        border-color: var(--primary-light);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }
    .tool-select {
        padding: 12px 16px;
        border: 1px solid var(--border-light);
        border-radius: 8px;
        font-size: 14px;
        background: var(--bg-white);
        color: var(--text-dark);
        cursor: pointer;
    }
    .tool-select:focus { outline: none; border-color: var(--primary-light); }
    .btn-tool {
        padding: 10px 18px;
        border: none;
        background: linear-gradient(135deg, #3b82f6, #8b5cf6);
        color: white;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s;
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }
    .btn-tool:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
    .current-time-card {
        background: linear-gradient(135deg, #dbeafe, #ede9fe);
    }
    .current-timestamp {
        font-family: 'SF Mono', monospace;
        font-size: 36px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 8px;
    }
    .current-date {
        font-size: 16px;
        color: var(--text-medium);
    }
    .result-box {
        background: var(--bg-light);
        border-radius: 8px;
        padding: 16px;
    }
    .result-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 0;
        border-bottom: 1px solid var(--border-light);
    }
    .result-row:last-child { border-bottom: none; }
    .result-label {
        font-size: 13px;
        color: var(--text-light);
    }
    .result-value {
        font-family: 'SF Mono', monospace;
        font-size: 14px;
        color: var(--text-dark);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .result-value button {
        background: none;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        padding: 4px;
    }
    .result-value button:hover { color: var(--primary); }
    .relative-time {
        display: inline-block;
        background: #fef3c7;
        color: #92400e;
        padding: 4px 10px;
        border-radius: 6px;
        font-size: 13px;
        margin-top: 12px;
    }
    .common-dates {
        display: grid;
        gap: 8px;
    }
    .common-date-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px;
        background: var(--bg-light);
        border-radius: 8px;
    }
    .common-date-item span {
        flex: 1;
        font-size: 14px;
        color: var(--text-medium);
    }
    .common-date-item code {
        font-family: 'SF Mono', monospace;
        font-size: 13px;
        background: var(--bg-white);
        padding: 4px 10px;
        border-radius: 4px;
        color: var(--primary);
    }
    .common-date-item button {
        background: none;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        padding: 8px;
        border-radius: 6px;
        transition: all 0.2s;
    }
    .common-date-item button:hover { background: var(--bg-white); color: var(--primary); }
    @media (max-width: 768px) {
        .date-grid { grid-template-columns: repeat(2, 1fr) !important; }
        .current-timestamp { font-size: 28px; }
    }