/* Section Labels */
    .workspace-label {
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-secondary);
      margin-bottom: 10px;
    }

    /* Converter Section */
    .converter-section {
      padding: 24px;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      margin-bottom: 24px;
    }

    .converter-section h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .converter-section h3 svg {
      color: var(--color-primary);
    }

    /* Input Row */
    .input-row {
      display: flex;
      gap: 10px;
      align-items: center;
      margin-bottom: 16px;
      flex-wrap: wrap;
    }

    .ts-input {
      flex: 1;
      min-width: 180px;
      padding: 12px 16px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
      font-size: 1rem;
      color: var(--color-text);
      background: var(--color-bg);
      outline: none;
      transition: border-color var(--transition-fast);
    }

    .ts-input:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px var(--color-primary-light);
    }

    .ts-input::placeholder {
      color: var(--color-text-muted);
    }

    /* Toggle Buttons */
    .toggle-group {
      display: flex;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    .toggle-btn {
      padding: 10px 16px;
      border: none;
      background: var(--color-surface);
      font-family: var(--font-body);
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--color-text-secondary);
      cursor: pointer;
      transition: all var(--transition-fast);
      white-space: nowrap;
    }

    .toggle-btn + .toggle-btn {
      border-left: 1px solid var(--color-border);
    }

    .toggle-btn:hover {
      background: var(--color-primary-light);
      color: var(--color-primary);
    }

    .toggle-btn.active {
      background: var(--color-primary);
      color: white;
    }

    /* Results Grid */
    .results-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 12px;
      margin-top: 16px;
    }

    .result-card {
      padding: 14px 16px;
      background: var(--color-bg);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-sm);
      transition: border-color var(--transition-fast);
      cursor: pointer;
    }

    .result-card:hover {
      border-color: var(--color-primary-subtle);
    }

    .result-label {
      font-size: 0.7rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-muted);
      margin-bottom: 6px;
    }

    .result-value {
      font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
      font-size: 0.875rem;
      color: var(--color-text);
      word-break: break-all;
      min-height: 1.3em;
    }

    .result-value.placeholder {
      color: var(--color-text-muted);
    }

    /* Copy tooltip */
    .result-card .copy-hint {
      font-size: 0.65rem;
      color: var(--color-text-muted);
      opacity: 0;
      transition: opacity var(--transition-fast);
      margin-top: 4px;
    }

    .result-card:hover .copy-hint {
      opacity: 1;
    }

    /* Section Divider */
    .section-divider {
      border: none;
      border-top: 1px solid var(--color-border-light);
      margin: 28px 0;
    }

    /* Date Inputs */
    .date-inputs {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 16px;
      align-items: center;
    }

    .date-input, .time-input {
      padding: 12px 14px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 0.9rem;
      color: var(--color-text);
      background: var(--color-bg);
      outline: none;
      transition: border-color var(--transition-fast);
    }

    .date-input:focus, .time-input:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px var(--color-primary-light);
    }

    .time-input {
      width: 70px;
      text-align: center;
      font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    }

    .time-separator {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--color-text-muted);
    }

    /* Timezone note */
    .tz-note {
      font-size: 0.78rem;
      color: var(--color-text-muted);
      margin-bottom: 16px;
      font-style: italic;
    }

    /* Current timestamp live */
    .live-timestamp {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 16px;
      background: var(--color-primary-light);
      border: 1px solid var(--color-primary-subtle);
      border-radius: var(--radius-sm);
      margin-bottom: 24px;
      font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
      font-size: 0.85rem;
      color: var(--color-primary);
      font-weight: 600;
    }

    .live-timestamp .live-label {
      font-family: var(--font-body);
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-muted);
    }

    .live-timestamp .live-value {
      flex: 1;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .converter-section {
        padding: 16px;
      }

      .results-grid {
        grid-template-columns: 1fr;
      }

      .ts-input {
        font-size: 0.9rem;
      }
    }

    @media (max-width: 480px) {
      .input-row {
        flex-direction: column;
        align-items: stretch;
      }

      .toggle-group {
        align-self: stretch;
      }

      .toggle-btn {
        flex: 1;
        text-align: center;
      }

      .date-inputs {
        flex-direction: column;
        align-items: stretch;
      }

      .time-input {
        width: 100%;
      }

      .live-timestamp {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
      }
    }