h1{
          width: 100%;
          display: inline-block;
          text-align: center;
          margin: 0;
          color: #000000;
          font-size: clamp(1.5rem, 8vw, 2rem);
        }
        h2 {
            text-align: center;
        }
        /* calculators.css adapted styles */
        .card {
            background-color: var(--color-white);
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 75, 255, 0.2);
            padding: 2rem;
            margin-bottom: 2rem;
        }
        .button-container {
            display: flex;
            justify-content: center;
            margin-top: 1rem;
            gap: 1rem;
        }
        
        /* Custom Styles for this page */
        .header-controls {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            gap: 1rem;
        }
        .time-display {
            font-family: 'Courier New', Courier, monospace;
            font-size: clamp(2rem, 10vw, 3rem); /* Responsive font size */
            font-weight: bold;
            margin: 1rem 0;
            color: #000000;
        }
        #stopwatch-display {
             margin-left: auto;
             margin-right: auto;
        }
        .card > p {
            text-align: center;
            color: #000000;
        }
        .button {
            color: var(--color-white);
            font-weight: bold;
            padding: 0.75rem 0;
            border: none;
            border-radius: 0.5rem;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
            transition: background-color 0.3s, transform 0.2s;
            cursor: pointer;
            font-size: 1rem;
            width: 120px;
            text-align: center;
        }
        .button:active {
            transform: translateY(1px);
        }
        #fullscreen-btn {
            padding: 0.5rem;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .btn-primary {
             background-color: var(--main-color);
        }
        .btn-primary:hover {
             background-color: var(--secondary-color);
        }
        .btn-secondary {
            background-color: #6b7280; /* A neutral gray */
        }
        .btn-secondary:hover {
             background-color: #4b5563; /* Darker gray */
        }
        .btn-warning {
             background-color: #d97706; /* An amber/yellow color */
        }
        .btn-warning:hover {
            background-color: #b45309; /* Darker amber */
        }
        .card-divider {
            margin: 2rem 0;
            border: 0;
            border-top: 1px solid #e5e7eb;
        }