/* =====================================
   CSS Variables & Theme
   ===================================== */
:root {
    /* Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-tertiary: #adb5bd;
    --border-color: #dee2e6;
    --shadow: rgba(0, 0, 0, 0.1);

    /* Accent Colors */
    --color-primary: #0d6efd;
    --color-primary-hover: #0b5ed7;
    --color-success: #198754;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --color-info: #0dcaf0;

    /* Danger Levels */
    --danger-safe: #d1e7dd;
    --danger-safe-border: #198754;
    --danger-caution: #fff3cd;
    --danger-caution-border: #ffc107;
    --danger-warning: #f8d7da;
    --danger-warning-border: #dc3545;
    --danger-critical: #f8d7da;
    --danger-critical-border: #842029;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

/* Dark Theme */
body.dark-theme {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #404040;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --text-tertiary: #6c757d;
    --border-color: #495057;
    --shadow: rgba(0, 0, 0, 0.3);

    --danger-safe: #1a3d2e;
    --danger-caution: #3d3420;
    --danger-warning: #3d2026;
    --danger-critical: #4a1a1a;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* =====================================
   Layout
   ===================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* =====================================
   Header
   ===================================== */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0b5ed7 100%);
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 4px 6px var(--shadow);
    position: relative;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-md);
}

.header-controls {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
}

.icon-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.lang-select {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.9rem;
}

/* =====================================
   Tabs Navigation
   ===================================== */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    box-shadow: 0 2px 4px var(--shadow);
}

.tab {
    background: transparent;
    border: 2px solid transparent;
    color: var(--text-secondary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

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

/* =====================================
   Main Content
   ===================================== */
.main-content {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 2px 8px var(--shadow);
    min-height: 500px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    margin-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* =====================================
   Sample Commands Section
   ===================================== */
.sample-commands-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.05), rgba(13, 202, 240, 0.05));
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.sample-commands-section .input-label {
    margin-bottom: var(--spacing-md);
}

.sample-commands-section .label-text {
    font-size: 1rem;
    color: var(--color-primary);
}

/* =====================================
   Input Section
   ===================================== */
.input-section {
    margin-bottom: var(--spacing-xl);
}

.input-label {
    display: block;
    margin-bottom: var(--spacing-md);
}

.label-text {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--spacing-xs);
}

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

.command-input-wrapper {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: border-color var(--transition-fast);
}

.command-input-wrapper:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.command-input {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    resize: vertical;
    outline: none;
    padding: var(--spacing-sm);
    min-height: 80px;
}

.command-input::placeholder {
    color: var(--text-tertiary);
}

.input-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* =====================================
   Buttons
   ===================================== */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.btn-icon {
    padding: var(--spacing-sm);
    background: transparent;
    border: 1px solid var(--border-color);
}

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

/* =====================================
   Analysis Results
   ===================================== */
.analysis-results {
    animation: slideDown 0.4s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 2000px;
    }
}

.hidden {
    display: none !important;
}

/* Warning Section */
.warning-section {
    margin-bottom: var(--spacing-xl);
}

.warning-box {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-md);
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

.warning-critical {
    background-color: var(--danger-critical);
    border-color: var(--danger-critical-border);
}

.warning-high {
    background-color: var(--danger-warning);
    border-color: var(--danger-warning-border);
}

.warning-medium {
    background-color: var(--danger-caution);
    border-color: var(--danger-caution-border);
}

.warning-box-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

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

.warning-content {
    margin-left: 3rem;
}

.warning-content p {
    margin-bottom: var(--spacing-sm);
}

.warning-list {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.warning-list li {
    margin-bottom: var(--spacing-sm);
}

/* Explanation Section */
.explanation-section,
.danger-section,
.alternatives-section,
.undo-section {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.explanation-section h3,
.danger-section h3,
.alternatives-section h3,
.undo-section h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    font-size: 1.3rem;
}

.command-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.command-part {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-info);
}

.command-part-name {
    font-family: 'Courier New', monospace;
    font-weight: 700;
    color: var(--color-primary);
    min-width: 150px;
}

.command-part-desc {
    flex: 1;
    color: var(--text-primary);
}

/* Danger Level */
.danger-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.danger-safe {
    background-color: var(--danger-safe);
    color: var(--danger-safe-border);
}

.danger-caution {
    background-color: var(--danger-caution);
    color: #856404;
}

.danger-high {
    background-color: var(--danger-warning);
    color: #842029;
}

.danger-critical {
    background-color: var(--danger-critical);
    color: var(--danger-critical-border);
}

/* Alternative Commands */
.alternative-cmd {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.alternative-cmd code {
    display: block;
    font-family: 'Courier New', monospace;
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin: var(--spacing-sm) 0;
    color: var(--color-success);
    font-size: 1rem;
}

.alternative-cmd p {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
}

/* =====================================
   Command Builder
   ===================================== */
.select-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.select-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.parameter-form {
    margin-top: var(--spacing-xl);
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.form-hint {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

.generated-command {
    margin-top: var(--spacing-xl);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 2px solid var(--color-success);
}

body.dark-theme .generated-command {
    background: linear-gradient(135deg, #2d2d2d 0%, #404040 100%);
}

.generated-command h3 {
    color: var(--color-success);
    margin-bottom: var(--spacing-md);
}

.command-output {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.command-output code {
    flex: 1;
    font-family: 'Courier New', monospace;
    color: var(--color-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.command-explanation {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* =====================================
   Wizard
   ===================================== */
.wizard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.wizard-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

.wizard-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 6px 12px var(--shadow);
}

.wizard-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.wizard-card h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.wizard-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.difficulty {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.difficulty.beginner {
    background-color: var(--danger-safe);
    color: var(--danger-safe-border);
}

.difficulty.intermediate {
    background-color: var(--danger-caution);
    color: #856404;
}

.difficulty.advanced {
    background-color: var(--danger-warning);
    color: #842029;
}

/* Wizard Content */
.wizard-content {
    animation: fadeIn 0.3s ease;
}

.wizard-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.wizard-header h2 {
    color: var(--color-primary);
    margin: var(--spacing-md) 0;
}

.wizard-progress {
    margin-top: var(--spacing-md);
}

.progress-bar {
    width: 100%;
    height: 10px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-info));
    transition: width 0.3s ease;
}

.progress-text {
    text-align: center;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.wizard-step {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
}

.wizard-step h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.8rem;
}

.wizard-step-content {
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.wizard-step-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: 1.4rem;
}

.wizard-step-content h4 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
    color: var(--text-primary);
}

.wizard-step-content ul,
.wizard-step-content ol {
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.wizard-step-content li {
    margin-bottom: var(--spacing-sm);
}

.wizard-commands {
    margin: var(--spacing-lg) 0;
}

.wizard-command {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    border-left: 3px solid var(--color-info);
    transition: all var(--transition-fast);
}

.wizard-command.highlight {
    border-left-color: var(--color-primary);
    border-left-width: 4px;
    background: linear-gradient(90deg, rgba(13, 110, 253, 0.05), transparent);
}

.wizard-command code {
    display: block;
    font-family: 'Courier New', monospace;
    color: var(--color-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    word-wrap: break-word;
}

.wizard-command p {
    color: var(--text-secondary);
    margin: 0;
}

.wizard-choices {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.wizard-choice {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
}

.wizard-choice h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.info-box, .tip-box, .warning-box, .error-box, .success-box {
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) 0;
    border-left: 4px solid;
}

.info-box {
    background-color: rgba(13, 202, 240, 0.1);
    border-left-color: var(--color-info);
}

.tip-box {
    background-color: rgba(25, 135, 84, 0.1);
    border-left-color: var(--color-success);
}

.warning-box {
    background-color: rgba(255, 193, 7, 0.1);
    border-left-color: var(--color-warning);
}

.error-box {
    background-color: rgba(220, 53, 69, 0.1);
    border-left-color: var(--color-danger);
}

.success-box {
    background-color: rgba(25, 135, 84, 0.1);
    border-left-color: var(--color-success);
}

.wizard-note {
    background-color: rgba(13, 202, 240, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-info);
    margin: var(--spacing-md) 0;
}

.wizard-diagram, .wizard-verification, .wizard-expected, .wizard-alternative {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) 0;
}

.wizard-diagram pre {
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    overflow-x: auto;
}

.wizard-expected pre {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    font-size: 0.9rem;
}

.workflow-diagram, .flow-diagram {
    margin: var(--spacing-md) 0;
    text-align: center;
}

.flow-step {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin: 0 var(--spacing-xs);
}

.flow-step.active {
    background-color: var(--color-primary);
    color: white;
}

.flow-arrow {
    display: inline-block;
    margin: 0 var(--spacing-xs);
    color: var(--text-tertiary);
}

.wizard-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border-color);
}

.wizard-navigation .btn {
    flex: 1;
}

.wizard-completion {
    text-align: center;
    padding: var(--spacing-xxl);
}

.completion-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-lg);
    animation: bounce 0.6s ease;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.wizard-completion h2 {
    color: var(--color-success);
    margin-bottom: var(--spacing-md);
}

.completion-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.code-block {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) 0;
    border-left: 3px solid var(--color-info);
}

.code-block code {
    display: block;
    font-family: 'Courier New', monospace;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

/* =====================================
   Reference
   ===================================== */
.search-box {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

/* Filter Section */
.filter-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.filter-group {
    margin-bottom: var(--spacing-lg);
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-group h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-size: 1rem;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

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

.filter-btn.active:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(0);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: border-color var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.3rem;
    color: var(--text-tertiary);
}

.reference-content {
    display: grid;
    gap: var(--spacing-lg);
}

.reference-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.reference-card h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.reference-card code {
    display: inline-block;
    background-color: var(--bg-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    color: var(--color-success);
    margin: var(--spacing-xs) 0;
}

.reference-card p {
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

/* =====================================
   Footer
   ===================================== */
.footer {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    margin-top: var(--spacing-xl);
}

.footer a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* =====================================
   Responsive Design
   ===================================== */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .header-controls {
        position: static;
        margin-top: var(--spacing-md);
    }

    .tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
    }

    .main-content {
        padding: var(--spacing-md);
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .wizard-cards {
        grid-template-columns: 1fr;
    }

    .input-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-sm);
    }

    .header {
        padding: var(--spacing-lg);
    }

    .header h1 {
        font-size: 1.5rem;
    }
}

/* =====================================
   Utility Classes
   ===================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* =====================================
   Scroll to Top Button
   ===================================== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    border: none;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.scroll-to-top:active {
    transform: translateY(-1px);
}

/* =====================================
   Related Items Section
   ===================================== */
.related-items {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    color: white;
    animation: slideUp var(--transition-normal) ease-out;
}

.related-items.hidden {
    display: none;
}

.related-items h3 {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 1.3rem;
}

#relatedItemsContent {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.related-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-fast);
}

.related-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.related-card h5 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 1.1rem;
}

.related-card p {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.btn-link {
    background: none;
    border: none;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
    transition: opacity var(--transition-fast);
}

.btn-link:hover {
    opacity: 0.8;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile adjustments for scroll to top button */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1.2rem;
    }

    .related-items {
        padding: var(--spacing-md);
    }

    #relatedItemsContent {
        grid-template-columns: 1fr;
    }
}

/* =====================================
   Reference Sub-tabs
   ===================================== */
.reference-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.reference-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    bottom: -2px;
}

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

.reference-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

.reference-tab-content {
    display: none;
}

.reference-tab-content.active {
    display: block;
}

/* =====================================
   Reverse Lookup Styles
   ===================================== */
.reverse-lookup-section {
    padding: var(--spacing-lg) 0;
}

.reverse-lookup-content {
    margin-top: var(--spacing-lg);
}

.reverse-task-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.reverse-task-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.reverse-task-card h3 {
    color: var(--color-primary);
    margin: 0 0 var(--spacing-md) 0;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.reverse-task-card .task-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.reverse-solution {
    background: var(--bg-secondary);
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-radius: var(--radius-md);
}

.reverse-solution h4 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
    font-size: 1.05rem;
}

.reverse-solution .when-to-use {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.reverse-solution .command-item {
    background: var(--bg-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-sm) 0;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.reverse-solution .command-item code {
    display: block;
    background: #2d3748;
    color: #68d391;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
    overflow-x: auto;
}

.reverse-solution .command-item .desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.reverse-solution .danger-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    margin-left: var(--spacing-sm);
}

.reverse-solution .danger-safe {
    background: #c6f6d5;
    color: #22543d;
}

.reverse-solution .danger-warning {
    background: #fed7d7;
    color: #742a2a;
}

.reverse-solution .danger-high,
.reverse-solution .danger-critical {
    background: #feb2b2;
    color: #63171b;
}

.reverse-solution .warning-message {
    background: #fff5e6;
    border: 1px solid #ffa500;
    color: #cc8400;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
}

/* Task prerequisites, next steps, and related tasks */
.task-prerequisites,
.task-next-steps {
    background: linear-gradient(135deg, #e0f2fe 0%, #e0e7ff 100%);
    border-left: 4px solid #3b82f6;
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: #1e40af;
}

.task-next-steps {
    background: linear-gradient(135deg, #d1fae5 0%, #dbeafe 100%);
    border-left-color: #10b981;
    color: #047857;
}

.task-related {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-color);
}

.task-related h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin: 0 0 var(--spacing-sm) 0;
}

.related-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.related-link-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.related-link-btn:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.3);
}

.highlight-flash {
    animation: highlightPulse 2s ease-in-out;
}

@keyframes highlightPulse {
    0%, 100% {
        background: var(--bg-primary);
    }
    50% {
        background: #fffbeb;
        box-shadow: 0 0 20px rgba(251, 191, 36, 0.5);
    }
}

/* Dark mode adjustments for reverse lookup */
.dark-theme .reverse-task-card {
    background: #2d3748;
}

.dark-theme .reverse-solution {
    background: #1a202c;
}

.dark-theme .reverse-solution .command-item {
    background: #2d3748;
}

.dark-theme .reverse-solution .warning-message {
    background: #744210;
    border-color: #b7791f;
    color: #fbbf24;
}

.dark-theme .task-prerequisites {
    background: linear-gradient(135deg, #1e3a5f 0%, #2d2f5e 100%);
    color: #93c5fd;
}

.dark-theme .task-next-steps {
    background: linear-gradient(135deg, #064e3b 0%, #1e3a5f 100%);
    color: #6ee7b7;
}

.dark-theme .related-link-btn {
    background: #374151;
    border-color: #60a5fa;
    color: #93c5fd;
}

.dark-theme .related-link-btn:hover {
    background: #3b82f6;
    color: white;
}

.dark-theme .highlight-flash {
    animation: highlightPulseDark 2s ease-in-out;
}

@keyframes highlightPulseDark {
    0%, 100% {
        background: #2d3748;
    }
    50% {
        background: #374151;
        box-shadow: 0 0 20px rgba(96, 165, 250, 0.5);
    }
}

@media (max-width: 768px) {
    .reference-tabs {
        flex-direction: column;
        gap: 0;
    }

    .reference-tab {
        border-bottom: 1px solid var(--border-color);
        text-align: left;
    }

    .reference-tab.active {
        border-left: 4px solid var(--color-primary);
        border-bottom: 1px solid var(--border-color);
    }
}

/* =====================================
   Visual Scenario Selector
   ===================================== */
.visual-selector-section {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    color: white;
}

.visual-selector-section h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: white;
}

.visual-selector-section .section-hint {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.scenario-categories {
    display: grid;
    gap: var(--spacing-lg);
}

.scenario-category {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.scenario-category h4 {
    margin: 0 0 var(--spacing-md) 0;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
}

.scenario-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-sm);
}

.scenario-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 80px;
}

.scenario-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.scenario-btn:active {
    transform: translateY(0);
}

.scenario-btn .btn-icon {
    font-size: 1.8rem;
    line-height: 1;
}

.scenario-btn .btn-label {
    text-align: center;
    line-height: 1.2;
}

.scenario-btn.selected {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

/* Dark theme adjustments for visual selector */
.dark-theme .visual-selector-section {
    background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
}

/* Mobile adjustments for visual selector */
@media (max-width: 768px) {
    .scenario-buttons {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .scenario-btn {
        min-height: 70px;
        padding: var(--spacing-sm);
    }

    .scenario-btn .btn-icon {
        font-size: 1.5rem;
    }

    .scenario-btn .btn-label {
        font-size: 0.85rem;
    }
}