/* Tool-specific styles */
        .tool-container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 2rem;
        }

        .tool-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .tool-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }

        .tool-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .back-button {
            position: fixed;
            top: 2rem;
            left: 2rem;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            background: var(--bg-secondary);
            color: var(--text-primary);
            text-decoration: none;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
            backdrop-filter: blur(20px);
        }

        .back-button:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .input-section {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 2rem;
            margin-bottom: 2rem;
            position: relative;
            overflow: hidden;
        }

        .input-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--gradient-primary);
            opacity: 0.6;
        }

        .input-label {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        #text-input {
            width: 100%;
            min-height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 1rem;
            color: var(--text-primary);
            font-family: 'Courier New', monospace;
            font-size: 1rem;
            line-height: 1.5;
            resize: vertical;
            transition: all 0.3s ease;
        }

        #text-input:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
        }

        #text-input::placeholder {
            color: var(--text-secondary);
        }

        .options-section {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 2rem;
            margin-bottom: 2rem;
        }

        .options-title {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
        }

        .option-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
            padding: 0.75rem;
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .option-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .checkbox-wrapper {
            position: relative;
            display: inline-flex;
            align-items: center;
        }

        .checkbox-wrapper input[type="checkbox"] {
            appearance: none;
            width: 20px;
            height: 20px;
            border: 2px solid var(--primary-color);
            border-radius: 4px;
            background: transparent;
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }

        .checkbox-wrapper input[type="checkbox"]:checked {
            background: var(--primary-color);
            border-color: var(--primary-color);
        }

        .checkbox-wrapper input[type="checkbox"]:checked::after {
            content: '✓';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            color: white;
            font-size: 12px;
            font-weight: bold;
        }

        .option-label {
            color: var(--text-primary);
            font-weight: 500;
            cursor: pointer;
        }

        .option-description {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-top: 0.25rem;
        }

        .action-buttons {
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

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

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--primary-color);
        }

        .btn-secondary:hover {
            background: var(--primary-color);
            color: white;
        }

        .output-section {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 2rem;
            margin-bottom: 2rem;
        }

        .output-label {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1rem;
        }

        .output-title {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        #text-output {
            width: 100%;
            min-height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 1rem;
            color: var(--text-primary);
            font-family: 'Courier New', monospace;
            font-size: 1rem;
            line-height: 1.5;
            resize: vertical;
            transition: all 0.3s ease;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .stat-card {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-primary);
            opacity: 0.6;
        }

        .stat-icon {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .stat-label {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .feature-highlight {
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(0, 129, 180, 0.1));
            border: 1px solid rgba(255, 107, 53, 0.2);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin: 2rem 0;
            text-align: center;
        }

        .feature-highlight h4 {
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }

        .feature-highlight p {
            color: var(--text-secondary);
            margin: 0;
        }

        @keyframes successPulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .success {
            animation: successPulse 0.3s ease;
        }

        @media (max-width: 768px) {
            .tool-container {
                padding: 1rem;
            }

            .back-button {
                top: 1rem;
                left: 1rem;
                padding: 0.5rem 1rem;
            }

            #text-input, #text-output {
                min-height: 150px;
                font-size: 0.9rem;
            }

            .action-buttons {
                flex-direction: column;
            }

            .btn {
                justify-content: center;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

/* --- Enhanced Interactions --- */

/* Ripple effect on button click */
.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.5s ease;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

/* Tooltip styles for buttons with a title attribute */
.btn[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-tertiary); /* Use a theme variable */
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 0.5rem;
}