.tool-fullwidth {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
}

/* Tool shell */
.text-tool {
    max-width: 100%;
    margin: 0 auto;
}

.text-tool.editor-section,
.editor-section.text-tool {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.text-tool .card {
    border: 1px solid var(--color-border, #e5e7eb);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.06));
    border-radius: var(--radius, 12px);
    background: var(--color-surface, #fff);
}

.text-tool .card-body {
    padding: 1.25rem 1.35rem;
}

.text-tool .card-title {
    color: var(--color-text, #1f2937);
    font-weight: 700;
    font-size: 1.05rem;
}

.text-tool .form-control,
.text-tool .form-select,
.text-tool .select-input,
.text-tool textarea {
    border-radius: 8px;
    border: 1px solid var(--color-border, #e5e7eb);
}

.text-tool .form-control:focus,
.text-tool .form-select:focus,
.text-tool textarea:focus {
    border-color: var(--color-primary, #0d9488);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.text-tool .btn-primary {
    background: var(--color-primary, #0d9488);
    border-color: var(--color-primary, #0d9488);
}

.text-tool .btn-primary:hover {
    background: var(--color-primary-hover, #0f766e);
    border-color: var(--color-primary-hover, #0f766e);
}

.text-tool .alert {
    border-radius: 10px;
}

[data-theme="dark"] .text-tool .card {
    background: var(--color-surface, #1f2937);
    border-color: var(--color-border, #374151);
}

[data-theme="dark"] .text-tool .card-title,
[data-theme="dark"] .text-tool .form-label,
[data-theme="dark"] .text-tool {
    color: var(--color-text, #f9fafb);
}

[data-theme="dark"] .text-tool .text-muted,
[data-theme="dark"] .text-tool .form-text {
    color: var(--color-text-secondary, #9ca3af) !important;
}

[data-theme="dark"] .text-tool .form-control,
[data-theme="dark"] .text-tool .form-select,
[data-theme="dark"] .text-tool textarea {
    background: #111827;
    color: var(--color-text, #f9fafb);
    border-color: var(--color-border, #374151);
}

/* --- tool: markdown-to-text --- */
.mdtotext-tool {
    max-width: 1400px;
    margin: 0 auto;
}

.preview-output { 
    border: 1px solid #dee2e6; 
    border-radius: 0.375rem; 
    background: #fff; 
    padding: 1rem;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
}

.preview-output h1, .preview-output h2, .preview-output h3, 
.preview-output h4, .preview-output h5, .preview-output h6 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.preview-output h1 { font-size: 2rem; }
.preview-output h2 { font-size: 1.75rem; }
.preview-output h3 { font-size: 1.5rem; }
.preview-output h4 { font-size: 1.25rem; }
.preview-output h5 { font-size: 1.1rem; }
.preview-output h6 { font-size: 1rem; }

.preview-output p {
    margin-bottom: 1rem;
}

.preview-output ul, .preview-output ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.preview-output li {
    margin-bottom: 0.25rem;
}

.preview-output blockquote {
    border-left: 4px solid #dee2e6;
    padding-left: 1rem;
    margin: 1rem 0;
    color: #6c757d;
    font-style: italic;
}

.preview-output code {
    background-color: #f8f9fa;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.preview-output pre {
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 0.375rem;
    overflow-x: auto;
    margin: 1rem 0;
}

.preview-output pre code {
    background: none;
    padding: 0;
}

.preview-output table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.preview-output th, .preview-output td {
    border: 1px solid #dee2e6;
    padding: 0.5rem;
    text-align: left;
}

.preview-output th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.preview-output a {
    color: #0d6efd;
    text-decoration: none;
}

.preview-output a:hover {
    text-decoration: underline;
}

.font-monospace { 
    font-family: 'Courier New', monospace; 
}

.btn {
    transition: all 0.2s ease-in-out;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-radius: 0.75rem;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    border-radius: 0.75rem 0.75rem 0 0 !important;
}

.alert {
    border-radius: 0.5rem;
    border: none;
}

@media (max-width: 768px) {
    .btn {
        margin-bottom: 0.5rem;
    }
    
    .preview-output {
        min-height: 200px !important;
        max-height: 400px !important;
    }
}