/* ==========================================
   CSS Variables and Color Scheme
   ========================================== */
:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-active: #1e40af;

    /* Secondary Colors */
    --secondary-color: #64748b;
    --secondary-hover: #475569;

    /* Success/Error/Warning */
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-code: #1e293b;

    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-code: #e2e8f0;

    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-dark: #94a3b8;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Font Families */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
}

/* ==========================================
   Global Styles
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================
   Header Styles
   ========================================== */
.app-header {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
}

.app-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    line-height: 1.25;
}

.header-subline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.app-header .subtitle {
    font-size: 0.875rem;
    font-weight: 500;
    margin: 0;
    opacity: 0.95;
    flex: 1;
    min-width: 12rem;
}

.header-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-shrink: 0;
}

.header-links a {
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    opacity: 0.95;
}

.header-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* ==========================================
   Main Content Layout
   ========================================== */
.main-content {
    flex: 1;
    flex: 1;
    width: 100%;
    margin: var(--spacing-md) auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: 0;
    /* Handled by splitter */
    height: calc(100vh - 160px);
    min-height: 500px;
}

.main-content>.panel.input-panel,
.main-content>.panel.output-panel {
    flex: 1;
    min-width: 200px;
    /* Minimum width constraint */
}

/* Splitter (input | output) */
.splitter {
    width: 6px;
    flex-shrink: 0;
    background-color: transparent;
    cursor: col-resize;
    transition: background-color 0.2s;
    z-index: 10;
    margin: 0 2px;
}

.splitter:hover,
.splitter.active {
    background-color: var(--primary-color);
}

/* Editor + status bar stack */
.editor-block {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    gap: 0;
}

.input-textarea,
.demo-editor-host.input-textarea {
    flex: 1;
    min-height: 0;
    width: 100%;
    resize: none !important;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    border-top: none;
    display: flex;
    flex-direction: column;
}

.output-content,
.demo-editor-host.output-content {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    margin: 0;
    background-color: var(--bg-code);
    color: var(--text-code);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    border: 1px solid #334155;
    border-top: none;
    display: flex;
    flex-direction: column;
}

.demo-editor-host .cm-editor {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: inherit;
}

.demo-editor-host.input-textarea .cm-editor {
    border: 1px solid #334155;
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.demo-editor-host.input-textarea .cm-editor.cm-focused {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.demo-editor-host .cm-scroller {
    flex: 1;
    min-height: 0;
}

/* Prevent wrap + gutter width oscillation (horizontal scrollbar feedback loop) */
.demo-editor-host .cm-lineWrapping .cm-scroller {
    overflow-x: hidden;
}

/* ==========================================
   Panel Styles
   ========================================== */
.panel {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.panel-body {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

/* ==========================================
   Input Panel Specific
   ========================================== */
.panel-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.format-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.format-selector label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.format-dropdown {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    background-color: var(--bg-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.format-dropdown:hover {
    border-color: var(--border-dark);
}

.format-dropdown:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-sm);
}

.toolbar-left,
.toolbar-right {
    display: flex;
    gap: var(--spacing-sm);
}

.toolbar-left {
    position: relative;
}

.example-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: var(--spacing-xs);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xs);
    min-width: 200px;
    z-index: 10;
}

.example-item {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: none;
    text-align: left;
    font-size: 0.875rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s;
}

.example-item:hover {
    background-color: var(--bg-secondary);
}

.input-textarea,
.demo-editor-host.input-textarea {
    padding: 0;
    border: none;
    background-color: transparent;
    color: var(--text-code);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    transition: border-color 0.2s;
}

.input-info,
.output-info {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md) var(--spacing-lg);
    padding: 0.25rem var(--spacing-md);
    background-color: var(--bg-tertiary);
    border-radius: 0;
    border: 1px solid #334155;
    border-bottom: none;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.input-info-line-wrap,
.output-info-line-wrap {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.output-editor-actions,
.input-editor-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    flex-wrap: wrap;
    margin-left: auto;
}

.input-editor-actions {
    flex-wrap: wrap;
}

.input-info .toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    position: relative;
}

.config-section {
    flex-shrink: 0;
    margin: 0 0 var(--spacing-xs);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

.input-tab-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.input-tab-pane {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    gap: var(--spacing-sm);
}

.input-tab-pane.active {
    display: flex;
}

.input-tabs-row,
.output-tabs-row {
    flex-shrink: 0;
    margin-bottom: var(--spacing-xs);
}

.input-tabs-row .tabs,
.output-tabs-row .tabs {
    margin-bottom: 0;
    border-bottom: 2px solid var(--border-light);
}

.input-pane-toolbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
}

.input-pane-toolbar .toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-right: auto;
}

.input-pane-toolbar--adgit {
    justify-content: flex-start;
}

.input-pane-toolbar--adgit .github-template-url-input {
    flex: 1 1 16rem;
}

.form-group-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: 0;
}

.form-group-inline label {
    margin-bottom: 0;
    white-space: nowrap;
}

.form-group-inline .config-dropdown {
    width: auto;
    padding: var(--spacing-xs) var(--spacing-md);
}

/* Template file set: scrollable tabs + generation-root radio */
.template-file-set {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.template-file-set-sources {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
}

.github-template-url-input {
    min-width: 14rem;
    max-width: 36rem;
    flex: 1 1 16rem;
    font-size: 0.75rem;
    font-family: var(--font-mono, monospace);
    padding: 0.35rem 0.5rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.adgit-intro {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-sm);
    line-height: 1.45;
}

.adgit-progress {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    max-height: 14rem;
    overflow: auto;
    padding: var(--spacing-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono, monospace);
}

.adgit-progress-empty {
    color: var(--text-muted);
}

.adgit-progress-list {
    margin: 0;
    padding-left: 1.25rem;
    list-style: decimal;
}

.adgit-progress-list li {
    margin: 0.15rem 0;
    word-break: break-word;
}

.adgit-progress-list li.adgit-phase-complete {
    color: var(--color-success, #2e7d32);
    font-weight: 600;
}

.adgit-progress-list li.adgit-phase-error {
    color: var(--color-error, #c62828);
}

.template-file-set-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.template-file-set-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.template-file-set-summary {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.template-file-set-info {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: help;
    line-height: 1;
}

.template-file-set-info .inline-icon {
    font-size: 1rem;
}

.template-file-set-info:hover,
.template-file-set-info:focus-visible {
    color: var(--primary);
    outline: none;
}

.template-file-tabs-scroll {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.25rem;
    overflow-x: auto;
    overflow-y: hidden;
    max-height: 4.5rem;
    padding-bottom: 0.25rem;
    scrollbar-width: thin;
}

.template-file-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.125rem;
    flex-shrink: 0;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    background: var(--bg-secondary);
}

.template-file-tab.active {
    border-color: var(--primary);
    background: var(--bg-primary);
    border-bottom-color: var(--bg-primary);
    margin-bottom: -1px;
    z-index: 1;
}

.template-root-radio {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.125rem 0.25rem 0.375rem;
    cursor: pointer;
    margin: 0;
}

.template-root-radio input {
    margin: 0;
    cursor: pointer;
    accent-color: var(--primary);
}

.template-file-tab-btn {
    border: none;
    background: transparent;
    padding: 0.35rem 0.5rem;
    font-size: 0.6875rem;
    font-family: var(--font-mono, monospace);
    color: var(--text-primary);
    cursor: pointer;
    max-width: 14rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.template-file-tab-btn:hover {
    color: var(--primary);
}

.template-file-tab .kind-badge {
    font-size: 0.625rem;
    color: var(--text-secondary);
    padding-right: 0.35rem;
    text-transform: lowercase;
}

.kind-badge--model {
    color: #1565c0;
}

.kind-badge--error {
    color: #c62828;
}

.kind-badge--skipped {
    color: #e65100;
}

.placeholder-message {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-align: center;
    background-color: var(--bg-secondary);
    border: 1px dashed var(--border-medium);
    border-radius: var(--radius-md);
}

.tab-pane .config-section {
    margin-bottom: var(--spacing-xs);
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-md);
}

.config-grid--input-deser {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
}

.config-col {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    min-width: 0;
}

.config-col--checks {
    gap: 0.375rem;
}

.config-col .form-group {
    margin-bottom: 0;
}

.config-col .form-group label {
    font-size: 0.6875rem;
    margin-bottom: 0.125rem;
}

.config-col .config-dropdown {
    font-size: 0.75rem;
    padding: 0.375rem 0.5rem;
}

.config-col .checkbox-label span {
    font-size: 0.75rem;
}

/* When active, prevent soft-wrapping and enable horizontal scroll */
.no-linebreak {
    white-space: pre !important;
    overflow-x: auto !important;
    word-wrap: normal !important;
}

.input-info .label {
    color: var(--text-secondary);
    font-weight: 500;
}

.validation-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.material-icons {
    font-family: 'Material Icons';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    direction: ltr;
    -webkit-font-smoothing: antialiased;
}

.btn-icon {
    font-size: 18px;
}

.btn-sm .btn-icon {
    font-size: 16px;
}

.panel-header h2 {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.panel-icon {
    font-size: 1.25rem;
}

.app-header h1 {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.header-icon {
    font-size: 2rem;
}

.status-icon.valid {
    color: var(--success-color);
}

.status-icon.invalid {
    color: var(--error-color);
}

.status-icon.material-icons {
    font-size: 1.125rem;
    vertical-align: middle;
}

.error-icon.material-icons {
    font-size: 2rem;
    color: var(--error-color);
}

.success-icon.material-icons {
    font-size: 1rem;
    color: var(--success-color);
}

.inline-icon {
    font-size: 0.875rem;
    vertical-align: text-bottom;
}

/* ==========================================
   Options / config (in input & output tabs)
   ========================================== */
.input-panel .panel-body,
.output-panel .panel-body {
    gap: var(--spacing-md);
    min-height: 0;
}

.option-section {
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.option-section:last-of-type {
    border-bottom: none;
}

.option-section.collapsible {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: var(--spacing-md);
    border-bottom: none;
}

.option-section.collapsible .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    padding: var(--spacing-sm);
    margin: calc(-1 * var(--spacing-sm));
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.option-section.collapsible .section-header:hover {
    background-color: var(--bg-tertiary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.option-section.collapsible .section-header:hover h3 {
    color: var(--primary-color);
}

.option-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    transition: color 0.2s;
}

.option-section.collapsible h3 {
    margin-bottom: 0;
}

.toggle-icon {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
    color: var(--text-muted);
}

.option-section.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.option-section.collapsed .section-content {
    display: none;
}

.section-content {
    margin-top: var(--spacing-md);
}

.checkbox-group,
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.checkbox-group-horizontal {
    display: flex;
    flex-flow: row wrap;
    gap: var(--spacing-sm) var(--spacing-md);
    justify-content: flex-end;
    align-items: center;
}

.simplified-template-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
}

.simplified-template-info {
    flex: 1 1 12rem;
    font-size: 0.85rem;
    color: var(--text-muted, #9aa0a6);
    word-break: break-word;
}

.form-hint {
    margin: 0.25rem 0 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted, #9aa0a6);
    line-height: 1.4;
}

#input-simplified-template-section.needs-attention {
    outline: 2px solid var(--warning-color, #e8a317);
    outline-offset: 2px;
    border-radius: var(--radius-sm, 4px);
}

.output-panel .panel-header {
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-md);
    align-items: flex-start;
}

.output-panel .panel-header h2 {
    flex-shrink: 0;
}

#output-tab-enable-section {
    flex: 1 1 12rem;
    min-width: 0;
    display: flex;
    justify-content: flex-end;
}

#output-tab-enable-section .checkbox-group-horizontal {
    gap: calc(var(--spacing-sm) / 2) calc(var(--spacing-md) / 2);
}

#output-tab-enable-section .checkbox-label {
    gap: calc(var(--spacing-sm) / 2);
    padding: calc(var(--spacing-xs) / 2);
}

#output-tab-enable-section .checkbox-label input[type="checkbox"] {
    width: 9px;
    height: 9px;
}

#output-tab-enable-section .checkbox-label span {
    font-size: 0.4375rem;
}

.output-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.output-toolbar .output-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: auto;
}

.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s;
    position: relative;
}

.checkbox-label:hover,
.radio-label:hover {
    background-color: var(--bg-secondary);
}

.checkbox-label input[type="checkbox"],
.radio-label input[type="radio"] {
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.checkbox-label span,
.radio-label span {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.config-dropdown {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    background-color: var(--bg-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.config-dropdown:hover {
    border-color: var(--border-dark);
}

.config-dropdown:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.indent-input {
    width: 60px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-right: var(--spacing-sm);
}

.indent-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.indent-input:disabled {
    background-color: var(--bg-secondary);
    cursor: not-allowed;
    opacity: 0.6;
}

.checkbox-label input[type="checkbox"]:disabled,
.checkbox-label input[type="number"]:disabled,
.config-dropdown:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tooltip-container {
    position: relative;
}

.tooltip {
    display: none;
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--text-primary);
    color: white;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.tooltip-container:hover .tooltip {
    display: block;
}

.btn-auto-convert {
    min-width: 9rem;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8125rem;
}

.btn-auto-convert:not(.is-active) {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.btn-auto-convert:not(.is-active):hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-dark);
}

.btn-auto-convert.is-active .btn-icon {
    color: inherit;
}

.convert-section {
    margin-top: var(--spacing-md);
}

.loading-state,
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.loading-state {
    background-color: var(--bg-secondary);
}

.error-state {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.error-icon {
    font-size: 2rem;
}

.error-message {
    color: var(--text-primary);
}

.error-message strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--error-color);
}

/* ==========================================
   Output Panel Specific
   ========================================== */
.tabs-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
    border-bottom: 2px solid var(--border-light);
    margin-bottom: var(--spacing-sm);
}

.tabs-row .tabs {
    flex: 1;
    min-width: 0;
    margin-bottom: 0;
    border-bottom: none;
}

.tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    background: none;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

.tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.tab-pane {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    gap: var(--spacing-sm);
}

.tab-pane.active {
    display: flex;
}

.output-panel .error-state,
.output-panel .loading-state {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    flex-shrink: 0;
}

.success-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-sm);
    color: var(--success-color);
    font-size: 0.875rem;
    font-weight: 500;
}

.success-icon {
    font-weight: bold;
}

/* ==========================================
   Button Styles
   ========================================== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

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

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-dark);
}

.btn-large {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8125rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ==========================================
   Footer Styles
   ========================================== */
.app-footer {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    flex-shrink: 0;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: var(--spacing-sm) var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.build-info {
    justify-self: start;
    grid-column: 1;
    margin: 0;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-settings {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm) var(--spacing-md);
    grid-column: 2;
    justify-self: center;
}

.footer-settings-label {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.footer-setting {
    padding: 0;
}

.footer-setting:hover {
    background-color: transparent;
}

.copyright {
    justify-self: end;
    grid-column: 3;
    margin: 0;
    text-align: right;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.footer-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==========================================
   Utility Classes
   ========================================== */
.hidden {
    display: none !important;
}

/* ==========================================
   Responsive Design
   ========================================== */

/* Tablet (portrait and landscape) */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .app-header h1 {
        font-size: 2rem;
    }

    .app-header .subtitle {
        font-size: 1.125rem;
    }

    .tooltip {
        display: none !important;
        /* Hide tooltips on smaller screens */
    }
}

/* Mobile */
@media (max-width: 768px) {
    .app-header {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .app-header h1 {
        font-size: 1.75rem;
    }

    .app-header .subtitle {
        font-size: 1rem;
    }

    .main-content {
        padding: 0 var(--spacing-md);
        margin: var(--spacing-lg) auto;
    }

    .panel-body {
        padding: var(--spacing-md);
    }

    .toolbar {
        flex-wrap: wrap;
    }

    .input-info,
    .output-info {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .input-info-line-wrap,
    .output-info-line-wrap {
        margin-left: 0;
    }

    .output-editor-actions,
    .input-editor-actions {
        margin-left: 0;
        width: 100%;
        justify-content: flex-start;
    }

    .footer-content {
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
    }

    .build-info,
    .copyright,
    .footer-settings {
        grid-column: 1;
        justify-self: center;
        text-align: center;
    }

    .config-grid {
        grid-template-columns: 1fr;
    }

    .config-grid--input-deser {
        grid-template-columns: 1fr;
    }

    .tabs-row {
        flex-wrap: wrap;
    }

    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tab {
        flex-shrink: 0;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .app-header h1 {
        font-size: 1.5rem;
    }

    .btn {
        font-size: 0.8125rem;
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .btn-large {
        font-size: 0.875rem;
    }

    .input-textarea {
        min-height: 300px;
    }
}

/* ==========================================
   Accessibility
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-light: #000000;
        --border-medium: #000000;
    }
}

/* ZipEHR symbol variant radios (emoji vs letter codes) */
.symbol-variant-radios {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.symbol-variant-radio {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.symbol-variant-radio input[type="radio"] {
    margin: 0;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.symbol-variant-radios.is-disabled .symbol-variant-radio {
    opacity: 0.55;
    cursor: not-allowed;
}

.symbol-variant-radios.is-disabled .symbol-variant-radio input[type="radio"] {
    cursor: not-allowed;
}