/* Styles specific to the Regex Tester Tool */

    .regex-tester-container {
        max-width: 1100px; /* Allow wide layout */
        margin: 1rem auto;
        padding: 1.5rem 2rem;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        background-color: var(--bg-color);
    }

    .regex-tester-container h2 {
        text-align: center;
        margin-bottom: 0.5rem;
        font-size: 1.4rem;
        color: var(--text-color);
    }
    .regex-tester-container .description {
        text-align: center;
        margin-bottom: 2rem;
        font-size: 0.9rem;
        color: var(--label-text);
    }

    .main-layout {
        display: flex;
        gap: 2rem;
        flex-wrap: wrap;
    }

    .input-panel, .output-panel {
        flex: 1;
        min-width: 350px;
        display: flex;
        flex-direction: column;
    }

    .output-panel h3 {
        margin-top: 0;
        margin-bottom: 0.5rem;
        font-size: 1.1rem;
        color: var(--label-text);
        font-weight: 600;
    }

    .control-group {
        margin-bottom: 1.5rem;
    }
    .control-group label {
        display: block;
        margin-bottom: 0.4rem;
        font-weight: 500;
        color: var(--label-text);
        font-size: 0.9rem;
    }

    /* Regex Input Specifics */
    .regex-input-wrapper {
        display: flex;
        align-items: center;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        padding: 0 0.5rem;
        background-color: var(--bg-color);
        flex-wrap: wrap;
    }
    .regex-input-wrapper:focus-within {
        border-color: var(--accent-color);
        box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
    }
    body.dark-mode .regex-input-wrapper:focus-within {
        box-shadow: 0 0 0 2px rgba(102, 191, 255, 0.25);
    }

    .regex-input-wrapper span {
        font-size: 1.1rem;
        color: var(--label-text);
        opacity: 0.8;
    }
    #regex-input {
        flex-grow: 1;
        border: none;
        outline: none;
        padding: 0.7rem 0.5rem;
        font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
        font-size: 1rem;
        background-color: transparent;
        color: var(--text-color);
    }

    .flags-group {
        display: flex;
        gap: 0.5rem;
        margin-left: 0.5rem;
        padding-left: 0.5rem;
        /*border-left: 1px solid var(--border-color);*/
    }
    .flags-group label {
        margin-bottom: 0;
        display: inline-flex;
        align-items: center;
        cursor: pointer;
        font-size: 0.9rem;
        font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
    }
    .flags-group input[type="checkbox"] {
        margin-right: 0.2rem;
        accent-color: var(--accent-color);
        cursor: pointer;
    }

    .error-message {
        color: var(--error-text);
        font-size: 0.85rem;
        margin-top: 0.4rem;
        min-height: 1.2em;
    }

    /* Test String Input */
    #test-string-input {
        width: 100%;
        padding: 0.8rem;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
        font-size: 0.95rem;
        background-color: var(--bg-color);
        color: var(--text-color);
        resize: vertical;
        min-height: 200px;
        line-height: 1.5;
    }
    #test-string-input:focus {
        border-color: var(--accent-color);
        outline: none;
        box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
    }
    body.dark-mode #test-string-input:focus {
         box-shadow: 0 0 0 2px rgba(102, 191, 255, 0.25);
    }

    /* Output Panel */
    .status-message {
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--label-text);
        margin-bottom: 1rem;
        min-height: 1.3em;
    }
    .status-message.match { color: #28a745; }
    .status-message.no-match { color: var(--error-text); }
    body.dark-mode .status-message.match { color: #34c759; }
    body.dark-mode .status-message.no-match { color: #ff453a; }


    #output-container {
        flex-grow: 1; /* Allow output to fill space */
        display: flex;
        flex-direction: column;
        gap: 1rem;
        background-color: var(--preview-bg);
        padding: 1rem;
        border-radius: 6px;
        border: 1px solid var(--border-color);
    }
    #output-container label {
        font-weight: 500;
        color: var(--label-text);
        font-size: 0.9rem;
        margin-bottom: 0.2rem;
    }

    .highlighted-text {
        background-color: var(--bg-color);
        border: 1px solid var(--border-color);
        border-radius: 4px;
        padding: 0.8rem;
        font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
        font-size: 0.95rem;
        line-height: 1.6;
        white-space: pre-wrap; /* Preserve whitespace and wrap */
        word-wrap: break-word;
        max-height: 250px; /* Limit height */
        overflow-y: auto;
    }
    .highlighted-text mark {
        background-color: rgba(255, 255, 0, 0.5); /* Yellow highlight */
        color: inherit;
        padding: 0.1em 0;
        border-radius: 2px;
        box-shadow: 0 0 0 1px rgba(255, 255, 0, 0.7);
    }
    body.dark-mode .highlighted-text mark {
         background-color: rgba(255, 255, 100, 0.4);
         box-shadow: 0 0 0 1px rgba(255, 255, 100, 0.6);
    }

    #match-list {
        list-style: decimal;
        margin: 0;
        padding: 0.5rem 0 0.5rem 1.5rem; /* Add padding for numbers */
        background-color: var(--bg-color);
        border: 1px solid var(--border-color);
        border-radius: 4px;
        max-height: 150px; /* Limit height */
        overflow-y: auto;
        font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
        font-size: 0.9rem;
    }
    #match-list li {
        margin-bottom: 0.4rem;
        word-break: break-all;
    }
    #match-list li.no-matches {
        list-style: none;
        color: var(--label-text);
        font-style: italic;
        text-align: center;
        padding: 0.5rem;
    }
    
    @media (max-width: 786px) {
        .input-panel, .output-panel {
            flex: auto!important;
            width: 100%!important;
            min-width: 100%!important;
        }
    }

    /* Responsive */
    @media (max-width: 900px) {
        .main-layout { flex-direction: column; }
    }