.timer-big-display {
      cursor: pointer;
      user-select: none;
      transition: transform 0.15s ease, opacity 0.15s ease, background-color 0.15s ease;
      display: inline-block;
      border-radius: var(--radius-lg);
      padding: 0.2rem 0.8rem;
    }
    .timer-big-display:hover {
      opacity: 0.9;
      transform: scale(1.02);
      background: var(--bg-surface-subtle);
    }
    .timer-big-display:focus-visible {
      outline: 3px solid var(--primary);
      outline-offset: 4px;
    }
    .time-digit-input {
      width: clamp(65px, 15vw, 135px);
      font-size: clamp(2.4rem, 8vw, 6rem);
      font-weight: 900;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      text-align: center;
      background: var(--bg-surface);
      border: 3px solid var(--primary);
      border-radius: var(--radius-lg);
      color: var(--text-primary);
      padding: 0.25rem 0;
      outline: none;
      box-shadow: var(--shadow-md);
      -moz-appearance: textfield;
    }
    .time-digit-input::-webkit-outer-spin-button,
    .time-digit-input::-webkit-inner-spin-button {
      -webkit-appearance: none;
      margin: 0;
    }
    .time-digit-input:focus {
      border-color: var(--accent-purple);
      box-shadow: 0 0 0 4px var(--primary-light);
    }
    .time-digit-colon {
      font-size: clamp(2.2rem, 7vw, 5.5rem);
      font-weight: 900;
      color: var(--border-strong);
      line-height: 1;
      user-select: none;
    }
    .time-digit-label {
      font-size: 0.75rem;
      font-weight: 800;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-top: 0.35rem;
      user-select: none;
    }
    .time-edit-hint {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      margin-top: 0.5rem;
      cursor: pointer;
      transition: color 0.15s, opacity 0.15s;
    }
    .timer-display-container:hover .time-edit-hint {
      color: var(--primary);
    }
    .preset-chip.active {
      background: var(--primary) !important;
      color: #FFF !important;
      border-color: var(--primary) !important;
      font-weight: 800;
    }