/**
 * App Styles Module (app-styles.css)
 * Comprehensive CSS styling for the Rhythm Pattern Explorer
 * 
 * Features:
 * - Complete responsive design system
 * - Component-based architecture
 * - Accessible UI patterns
 * - Modern CSS best practices
 * - Visual hierarchy and theming
 * - Animation and interaction states
 * 
 * Dependencies: None
 * 
 * Organization:
 * 1. CSS Variables & Themes
 * 2. Base & Reset Styles
 * 3. Layout System
 * 4. Typography
 * 5. Component Styles
 * 6. Utility Classes
 * 7. Responsive Design
 * 8. Animation & Transitions
 * 9. Theme Variants
 * 10. Print Styles
 */

/* ================================================
   1. CSS VARIABLES & THEMES
   ================================================ */

:root {
    /* === COLOR PALETTE (MATCHING LAYOUT-REDESIGN.HTML) === */
    --color-primary: #007bff;
    --color-secondary: #6c757d;
    --color-success: #28a745;
    --color-info: #17a2b8;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    
    /* Background colors */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    
    /* Border colors */
    --border-light: #e9ecef;
    
    /* === BALANCE SCORE COLORS === */
    --balance-perfect: #28a745;
    --balance-excellent: #17a2b8;
    --balance-good: #ffc107;
    --balance-fair: #fd7e14;
    --balance-poor: #dc3545;
    
    /* === PATTERN TYPE COLORS === */
    --pattern-polygon: #6f42c1;
    --pattern-euclidean: #fd7e14;
    --pattern-combined: #e83e8c;
    
    /* === SPACING === */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-xxl: 24px;
    --spacing-xxxl: 32px;
    
    /* === TYPOGRAPHY (MATCHING LAYOUT-REDESIGN.HTML) === */
    --font-family-base: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-mono: 'Courier New', 'Monaco', 'Menlo', monospace;
    
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.2rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-base: 1.5;
    
    /* === LAYOUT (MATCHING LAYOUT-REDESIGN.HTML) === */
    --border-radius-base: 8px;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    
    /* === TRANSITIONS === */
    --transition-base: 0.2s ease;
    --transition-hover: 0.3s ease;
    
    /* === BREAKPOINTS === */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    --breakpoint-xxl: 1600px;
    
    /* === Z-INDEX SCALE === */
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal: 1040;
    --z-index-popover: 1050;
    --z-index-tooltip: 1060;
}

/* ================================================
   2. BASE & RESET STYLES
   ================================================ */

/* === MODERN CSS RESET === */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    padding: 0;
    background: var(--bg-primary);
    font-family: var(--font-family-base);
    line-height: var(--line-height-base);
}

/* === HEADING STYLES === */
h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--spacing-lg) 0;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-darker);
}

h1 {
    font-size: var(--font-size-xxxl);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-darker);
}

h2 {
    font-size: var(--font-size-xxl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

/* === TEXT ELEMENTS === */
p {
    margin: 0 0 var(--spacing-md) 0;
}

a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

small {
    font-size: var(--font-size-xs);
    color: var(--color-secondary);
}

strong {
    font-weight: var(--font-weight-bold);
}

/* === LIST STYLES === */
ul, ol {
    margin: 0 0 var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

li {
    margin-bottom: var(--spacing-xs);
}

/* ================================================
   3. LAYOUT SYSTEM
   ================================================ */

/* === MAIN CONTAINER === */
.main-container {
    max-width: var(--breakpoint-xxl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

/* === SECTIONS === */
.section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-base);
    margin-bottom: var(--spacing-lg);
}

.section-header {
    font-size: var(--font-size-xxl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    color: var(--color-dark);
    border-bottom: 2px solid var(--border-light);
    padding-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* === GRID SYSTEM === */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-auto { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }

/* === FLEX UTILITIES === */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

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

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* ================================================
   BENTO BOX LAYOUT SYSTEM
   ================================================ */

/* === APP CONTAINER === */
.app-container {
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1600px;
    margin: 0 auto;
}

.app-header {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    border: 1px solid var(--border-light);
}

.app-header h1 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.app-header p {
    color: var(--color-secondary);
    margin: 0;
    font-size: var(--font-size-md);
}

/* === 4-ROW LAYOUT === */
.four-row-layout {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-width: none;
    margin: 0;
    width: 100%;
}

/* === ROW STYLES (MATCHING BENTO CARDS) === */
.row-1-input,
.row-2-analysis,
.row-3-database-controls,
.row-4-database {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md);
    transition: all var(--transition-hover);
    border: 1px solid var(--border-light);
}

.row-1-input:hover,
.row-2-analysis:hover,
.row-3-database-controls:hover,
.row-4-database:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.row-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-light);
}

.row-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin: 0;
}

/* === ROW 1: UNIVERSAL INPUT === */
.row-1-input {
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md) var(--spacing-lg);
}

.input-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.input-main {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-base);
}

/* === ROW 2: ANALYSIS === */
.row-2-analysis {
    border-left: 4px solid var(--color-success);
    min-height: 200px;
}

.analysis-placeholder {
    text-align: center;
    color: var(--color-secondary);
    padding: var(--spacing-xl);
    font-style: italic;
}

.pattern-output-line {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
}

.output-item {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    border: 1px solid var(--border-light);
    white-space: nowrap;
}

.balance-section {
    display: grid;
    grid-template-columns: 1fr 1fr 180px;
    gap: var(--spacing-lg);
    align-items: start;
    min-height: 400px;
}

.balance-analysis-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.balance-visualization-large {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

/* === SEQUENCER INTEGRATION STYLES === */
.sequencer-visualization-large {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    padding: var(--spacing-md);
}

.sequencer-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    width: 100%;
    max-width: none;
}

.sequencer-controls-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    min-width: 240px;
    max-width: 260px;
    overflow: hidden;
}

.sequencer-canvas-wrapper {
    position: relative;
    width: 450px;
    height: 450px;
    border: 2px solid var(--border-light);
    border-radius: 50%;
    background: radial-gradient(circle at center, #ffffff 0%, #f8f9fa 70%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    padding: 8px;
}

.sequencer-canvas-wrapper canvas {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: block;
    /* Force hardware acceleration */
    transform: translateZ(0);
    /* Ensure proper rendering */
    will-change: transform;
}

.sequencer-controls-compact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 160px;
}

.sequencer-playback-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg-subtle);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
}

.sequencer-settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: 0;
    background: var(--color-bg-subtle);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
    font-size: var(--font-size-sm);
    box-sizing: border-box;
    width: 100%;
}

.btn-sequencer {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius-base);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    min-width: 40px;
    height: 36px;
}

.btn-sequencer:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-sequencer:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-sequencer.pause {
    background: var(--color-warning);
}

.btn-sequencer.pause:hover {
    background: #e0a800;
}

.btn-sequencer.stop {
    background: var(--color-danger);
}

.btn-sequencer.stop:hover {
    background: #c82333;
}

.btn-sequencer:disabled {
    background: var(--color-disabled);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.sequencer-status {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: var(--font-weight-medium);
    margin-left: var(--spacing-sm);
    min-width: 60px;
}

.sequencer-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    min-width: 45px;
}

.sequencer-slider {
    flex: 1;
    min-width: 60px;
    max-width: 90px;
    margin: 0 var(--spacing-xs);
}

.sequencer-value {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    min-width: 35px;
    text-align: right;
}

.sequencer-select {
    font-size: var(--font-size-xs);
    padding: 2px 4px;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    background: white;
    color: var(--color-text);
    max-width: 120px;
}

.sequencer-status-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-weight: var(--font-weight-normal);
}

.sequencer-status-text.midi-ready {
    color: var(--color-success);
    font-weight: var(--font-weight-medium);
}

.sequencer-status-text.midi-connecting {
    color: var(--color-warning);
    font-style: italic;
}

/* === RESPONSIVE SEQUENCER === */
@media (max-width: 768px) {
    .sequencer-canvas-wrapper {
        width: 320px;
        height: 320px;
    }
    
    .sequencer-settings-row {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .sequencer-settings-row > div {
        display: flex;
        align-items: center;
        gap: var(--spacing-xs);
        width: 100%;
    }
}

.balance-score-display {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-base);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.balance-score-value {
    font-size: var(--font-size-lg);
    color: var(--color-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.balance-score-status {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    text-align: center;
    color: var(--color-dark);
}

/* === PATTERN TYPE STYLING === */
.pattern-type {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-base);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

.pattern-type.polygon {
    background: var(--pattern-polygon);
    color: white;
}

.pattern-type.euclidean {
    background: var(--pattern-euclidean);
    color: white;
}

.pattern-type.polygon-combined {
    background: var(--pattern-polygon);
    color: white;
    opacity: 0.9;
}

.pattern-type.repetition {
    background: var(--color-info);
    color: white;
}

.pattern-type.quantization {
    background: var(--color-warning);
    color: white;
}

/* === ANALYSIS BOX STYLING === */
.analysis-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    min-width: 200px;
    max-width: 300px;
}

.analysis-box-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-light);
}

.analysis-box-icon {
    font-size: 1.2rem;
}

.analysis-box-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    color: var(--color-primary);
    flex: 1;
}

.analysis-box-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.balance-box .balance-score-display {
    font-size: 1.2rem;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.balance-box .balance-score-value {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.balance-box .balance-score-status {
    font-size: var(--font-size-sm);
}

/* === ROW 3: DATABASE CONTROLS & STATISTICS === */
.row-3-database-controls {
    border-left: 4px solid var(--color-info);
}

.controls-stats-row {
    display: grid;
    grid-template-columns: 200px 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.database-controls-col {
    min-width: 200px;
}

.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.statistics-col {
    flex: 1;
    min-width: 0;
}

.stats-grid-horizontal {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--border-radius-base);
}

.stat-value {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
}

.pbe-col {
    min-width: 200px;
    max-width: 220px;
}

.pbe-compact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pbe-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    width: 100%;
}

.pbe-header .info-btn {
    flex-shrink: 0;
    margin-left: auto;
}

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

.input-compact {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    width: 60px;
}

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

.progress-bar-compact {
    width: 100%;
    height: 4px;
    background: var(--border-light);
    border-radius: 2px;
    overflow: hidden;
    margin-top: var(--spacing-xs);
}

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

/* === ROW 4: DATABASE === */
.row-4-database {
    border-left: 4px solid var(--color-warning);
}

.database-search-filters {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.search-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.search-input {
    flex: 2;
    padding: var(--spacing-md);
    border: 2px solid #d1d5db;
    border-radius: var(--border-radius-base);
    background: white;
    transition: all var(--transition-base);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    font-size: var(--font-size-base);
}

.search-input:hover {
    border-color: #9ca3af;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.search-input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1), 0 2px 4px rgba(0, 0, 0, 0.1);
}

.filter-select {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid #d1d5db;
    border-radius: var(--border-radius-base);
    background: white;
    transition: all var(--transition-base);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    font-size: var(--font-size-base);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-sm) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: calc(var(--spacing-md) + 2em);
}

.filter-select:hover {
    border-color: #9ca3af;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.filter-select:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1), 0 2px 4px rgba(0, 0, 0, 0.1);
}

.step-count-row {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: center;
}

.step-count-input {
    width: 80px;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.step-count-separator {
    color: var(--color-secondary);
    font-weight: var(--font-weight-bold);
}

.pattern-list-fullwidth {
    min-height: 300px;
    max-height: 500px;
    overflow-y: auto;
}

/* === BENTO CARDS === */
.bento-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.bento-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.bento-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-light);
}

.bento-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin: 0;
}

.info-btn {
    background: var(--color-info);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.info-btn:hover {
    background: var(--color-info-dark);
    transform: scale(1.1);
}

/* === SPECIFIC CARD AREAS === */
.input-card { 
    grid-area: input; 
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md) var(--spacing-lg);
}

.input-card .bento-card-header {
    margin-bottom: var(--spacing-sm);
}

.input-card .input-group {
    margin-bottom: var(--spacing-sm);
}

.input-card .btn-group {
    margin-bottom: 0;
}

.analysis-card { 
    grid-area: analysis;
    border-left: 4px solid var(--color-success);
}

.controls-card { 
    grid-area: controls;
    border-left: 4px solid var(--color-info);
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-xl);
    align-items: start;
}

.stats-section h3,
.database-controls-section h3,
.explorer-section h3 {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-bold);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.database-card { 
    grid-area: database;
    border-left: 4px solid var(--pattern-combined);
    min-height: 400px;
}

/* === EXPLORER CARD SPECIFICS === */
.exploration-params {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.param-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.param-group label {
    font-size: var(--font-size-xs);
    color: var(--color-secondary);
    text-align: center;
}

.param-group input {
    text-align: center;
}

.theory-box {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

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

/* === VISUALIZATION CARD SPECIFICS === */
.visualization-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-base);
    border: 2px dashed var(--border-medium);
}

.placeholder-content {
    text-align: center;
    color: var(--color-secondary);
}

.placeholder-content span {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.pattern-visualization {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.pattern-circle {
    width: 180px;
    height: 180px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    position: relative;
    background: var(--bg-secondary);
}

.pattern-beat {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    transform: translate(-50%, -50%);
}

.pattern-step {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-gray);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.pattern-info-text {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    text-align: center;
}

/* === DATABASE CONTROLS === */
.database-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

/* === RESPONSIVE DESIGN === */
@media (max-width: 1200px) {
    .controls-stats-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .database-controls-col,
    .statistics-col,
    .pbe-col {
        min-width: auto;
    }
    
    .balance-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        grid-template-rows: auto auto auto;
    }
    
    .balance-analysis-column {
        text-align: center;
    }
    
    .sequencer-visualization-large {
        min-height: 250px;
    }
    
    .sequencer-canvas-wrapper {
        width: 320px;
        height: 320px;
    }
    
    .sequencer-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .sequencer-controls-container {
        display: flex;
        justify-content: center;
    }
    
    .sequencer-controls-compact {
        max-width: 280px;
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: var(--spacing-md);
    }
    
    .four-row-layout {
        gap: var(--spacing-md);
    }
    
    .input-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .pattern-output-line {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .output-item {
        text-align: center;
    }
    
    .controls-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid-horizontal {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .pbe-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-row {
        flex-direction: column;
    }
    
    .balance-score-display {
        font-size: 24px;
        padding: var(--spacing-md);
    }
}
    
    .bento-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        grid-template-areas:
            "input"
            "analysis"
            "controls"
            "database";
    }
    
    .controls-card {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .database-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .database-controls .btn {
        width: 100%;
    }
    
    /* Mobile pattern entry layout */
    .pattern-entry {
        grid-template-columns: auto 1fr;
        grid-template-areas: 
            "star header"
            "badges badges"
            "repr repr"
            "actions actions";
    }
    
    .pattern-actions {
        justify-self: end;
        margin-top: var(--spacing-xs);
    }
    
    .search-filter {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .step-count-filter {
        justify-self: stretch;
    }
}

/* ================================================
   4. TYPOGRAPHY
   ================================================ */

/* === ANALYSIS TYPOGRAPHY === */
.analysis-title {
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
    font-size: var(--font-size-lg);
}

.analysis-content {
    font-size: var(--font-size-base);
    color: var(--color-secondary);
    line-height: var(--line-height-relaxed);
}

.mathematical-formula {
    background: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-base);
    font-family: var(--font-family-mono);
    font-style: italic;
    margin: var(--spacing-sm) 0;
    border-left: 3px solid var(--color-primary);
    font-size: var(--font-size-md);
}

.pattern-viz {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-lg);
    letter-spacing: 1px;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-base);
    word-break: break-all;
    overflow-wrap: break-word;
}

/* === CODE & MONOSPACE === */
code, .code {
    font-family: var(--font-family-mono);
    font-size: 0.9em;
    background: var(--bg-tertiary);
    padding: 2px var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-light);
}

pre, .pre {
    font-family: var(--font-family-mono);
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
    overflow-x: auto;
    line-height: var(--line-height-relaxed);
}

/* ================================================
   5. COMPONENT STYLES
   ================================================ */

/* === FORM CONTROLS === */
.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.input-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.input {
    padding: var(--spacing-md);
    border: 1px solid var(--border-medium);
    border-radius: var(--border-radius-base);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
    background: var(--bg-secondary);
    color: var(--color-dark);
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

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

.input.readonly {
    background-color: var(--bg-primary);
    color: var(--color-secondary);
    cursor: not-allowed;
}

.input::placeholder {
    color: var(--color-gray-dark);
    opacity: 1;
}

/* === SELECT DROPDOWN === */
select.input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23343a40' d='m2 0-2 2h4zm0 5 2-2h-4z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    padding-right: var(--spacing-xxxl);
}

/* === TEXTAREA === */
textarea.input {
    resize: vertical;
    min-height: 80px;
    line-height: var(--line-height-relaxed);
}

/* === BUTTONS (MATCHING LAYOUT-REDESIGN.HTML) === */
.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--font-size-base);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

/* === BUTTON VARIANTS === */
.btn.primary {
    background: var(--color-primary);
    color: white;
}

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

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

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

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

/* === BUTTON SIZES === */
.btn.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xxl);
    font-size: var(--font-size-lg);
}

/* === BUTTON GROUP === */
.btn-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* === MODAL COMPONENT === */
.modal {
    position: fixed;
    top: var(--spacing-xl);
    left: var(--spacing-xl);
    right: var(--spacing-xl);
    bottom: var(--spacing-xl);
    background: var(--bg-secondary);
    border: 2px solid var(--color-darker);
    padding: var(--spacing-xl);
    z-index: var(--z-index-modal);
    font-family: var(--font-family-mono);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.modal::backdrop,
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-index-modal) - 1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}

.modal-body {
    flex: 1;
    overflow: auto;
}

.modal-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.modal textarea {
    flex: 1;
    font-family: inherit;
    font-size: var(--font-size-sm);
    border: 1px solid var(--border-medium);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-base);
    resize: vertical;
    min-height: 200px;
}

/* === PATTERN LIST === */
.pattern-list {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    background: var(--bg-secondary);
}

.pattern-entry {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    display: grid;
    grid-template-columns: auto auto 1fr;
    grid-template-areas: 
        "star actions header"
        "badges badges badges"
        "repr repr repr";
    gap: var(--spacing-sm);
    transition: background-color var(--transition-base);
    cursor: pointer;
    overflow: hidden;
}

.pattern-entry:last-child {
    border-bottom: none;
}

.pattern-entry:hover {
    background: var(--bg-primary);
}

.pattern-entry.favorite {
    background: rgba(255, 193, 7, 0.1);
    border-left: 4px solid var(--color-warning);
}

.pattern-entry.perfect-balance {
    background: rgba(40, 167, 69, 0.1);
    border-left: 4px solid var(--color-success);
}

/* === PATTERN STAR === */
.pattern-star {
    grid-area: star;
    cursor: pointer;
    color: var(--color-secondary);
    font-size: var(--font-size-xl);
    transition: color var(--transition-base);
    user-select: none;
    align-self: center;
}

.pattern-star:hover {
    color: var(--color-warning);
}

.pattern-star.active {
    color: var(--color-warning);
}

/* === PATTERN INFO === */
.pattern-info {
    grid-area: header;
    min-width: 0;
}

.pattern-name {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-xs);
    cursor: pointer;
    color: var(--color-dark);
    transition: color var(--transition-fast);
}

.pattern-name:hover {
    color: var(--color-primary);
}

.pattern-name.unnamed {
    color: var(--color-gray-dark);
    font-style: italic;
    font-weight: var(--font-weight-normal);
}

/* === PATTERN HEADER AND STEP COUNT BADGE === */
.pattern-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    gap: var(--spacing-md);
}

.step-count-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-primary-dark);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    transition: all var(--transition-base);
}

.step-count-badge:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

/* Step count badge color variants based on step count */
/* Small patterns (1-8 steps) - Blue */
.pattern-entry[data-step-count-size="small"] .step-count-badge {
    background: var(--color-info);
    border-color: var(--color-info-dark);
}

.pattern-entry[data-step-count-size="small"] .step-count-badge:hover {
    background: var(--color-info-dark);
}

/* Medium patterns (9-16 steps) - Green */
.pattern-entry[data-step-count-size="medium"] .step-count-badge {
    background: var(--color-success);
    border-color: var(--color-success-dark);
}

.pattern-entry[data-step-count-size="medium"] .step-count-badge:hover {
    background: var(--color-success-dark);
}

/* Large patterns (17+ steps) - Orange */
.pattern-entry[data-step-count-size="large"] .step-count-badge {
    background: var(--color-warning);
    border-color: var(--color-warning-dark);
    color: var(--color-dark);
}

.pattern-entry[data-step-count-size="large"] .step-count-badge:hover {
    background: var(--color-warning-dark);
}

.pattern-badges {
    grid-area: badges;
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    font-size: var(--font-size-sm);
}

.pattern-representations {
    grid-area: repr;
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    font-size: var(--font-size-sm);
    overflow: hidden;
    max-width: 100%;
}

.pattern-repr {
    background: var(--bg-tertiary);
    padding: 2px var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-mono);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid var(--border-light);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
    user-select: text;
    position: relative;
}

.pattern-repr:active {
    user-select: all;
}

.pattern-repr.expanded {
    max-width: none;
    white-space: normal;
    word-break: break-all;
    z-index: 10;
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
}

.pattern-repr::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
    z-index: 1000;
}

.pattern-repr:hover::after {
    opacity: 1;
}

.pattern-repr:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* === PATTERN REPRESENTATION VARIANTS === */
.pattern-repr.highlight {
    background: var(--color-success);
    color: var(--color-white);
    font-weight: var(--font-weight-medium);
}

.pattern-repr.polygon-type {
    background: var(--pattern-polygon);
    color: var(--color-white);
}

.pattern-repr.euclidean-type {
    background: var(--pattern-euclidean);
    color: var(--color-white);
}

.pattern-repr.combined-type {
    background: var(--pattern-combined);
    color: white;
}

.pattern-repr.quantization-type {
    background: var(--color-warning);
    color: white;
}

.pattern-repr.polygon-components {
    background: var(--pattern-polygon);
    color: white;
    opacity: 0.8;
}

.pattern-repr.perfect-balance-badge {
    background: var(--balance-perfect);
    color: white;
}

.pattern-repr.cog-value {
    background: var(--color-info);
    color: white;
}

/* === PATTERN ACTIONS === */
.pattern-actions {
    grid-area: actions;
    display: flex;
    gap: var(--spacing-xs);
    align-self: center;
}

/* === DATABASE CONTROLS === */
.database-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.database-controls {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.search-filter {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
}

.search-filter .input {
    flex: 1;
    min-width: 200px;
}

/* === STEP COUNT FILTER CONTROLS === */
.step-count-filter {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.step-count-filter:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-medium);
}

.step-count-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-secondary);
    white-space: nowrap;
}

.step-count-input {
    width: 60px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-medium);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    text-align: center;
    background: var(--bg-primary);
    color: var(--color-dark);
    transition: all var(--transition-base);
}

.step-count-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
    background: var(--bg-secondary);
}

.step-count-input:invalid {
    border-color: var(--color-danger);
    background: rgba(220, 53, 69, 0.1);
}

.step-count-separator {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    font-weight: var(--font-weight-medium);
    margin: 0 var(--spacing-xs);
}

/* === STATISTICS DISPLAY === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin: 0;
}

.stat-item {
    background: var(--bg-primary);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-base);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    min-width: 0;
    overflow: hidden;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: block;
    line-height: var(--line-height-tight);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: var(--spacing-xs);
    word-wrap: break-word;
    hyphens: auto;
}

/* === ANALYSIS COMPONENTS === */
.analysis-section {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
    max-height: 400px;
    overflow-y: auto;
}

.analysis-item {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-base);
    border-left: 4px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.analysis-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

/* === ANALYSIS ITEM VARIANTS === */
.analysis-item.polygon {
    border-left-color: var(--pattern-polygon);
    background: rgba(111, 66, 193, 0.05);
}

.analysis-item.euclidean {
    border-left-color: var(--pattern-euclidean);
    background: rgba(253, 126, 20, 0.05);
}

.analysis-item.combined {
    border-left-color: var(--pattern-combined);
    background: rgba(232, 62, 140, 0.05);
}

.analysis-item.center-gravity {
    border-left-color: var(--color-info);
    background: rgba(23, 162, 184, 0.05);
}

.analysis-item.repetition {
    border-left-color: var(--pattern-repetition);
    background: rgba(255, 193, 7, 0.05);
}

.analysis-item.perfect-balance {
    border-left-color: var(--balance-perfect);
    background: rgba(40, 167, 69, 0.05);
    position: relative;
}

.analysis-item.perfect-balance::before {
    content: '✨';
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: var(--font-size-lg);
    animation: sparkle 3s infinite;
}

/* === BALANCE SCORE DISPLAY === */
.balance-score {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.balance-perfect {
    background: var(--balance-perfect);
    color: var(--color-white);
}

.balance-excellent {
    background: var(--balance-excellent);
    color: var(--color-white);
}

.balance-good {
    background: var(--balance-good);
    color: var(--color-black);
}

.balance-fair {
    background: var(--balance-fair);
    color: var(--color-white);
}

.balance-poor {
    background: var(--balance-poor);
    color: var(--color-white);
}

/* === REDESIGNED ANALYSIS LAYOUT === */
.analysis-section-redesigned {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    max-height: 600px;
    overflow-y: auto;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
}

/* === ANALYSIS ROW LAYOUT === */
.analysis-row {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-base);
    border-left: 4px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.analysis-row .analysis-title {
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-dark);
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* === ANALYSIS ROW VARIANTS === */
.analysis-row.pattern-overview {
    border-left-color: var(--color-primary);
}

.analysis-row.balance-cog-prominent {
    border-left-color: var(--balance-perfect);
    background: rgba(40, 167, 69, 0.05);
}

.analysis-row.additional-analysis {
    border-left-color: var(--pattern-polygon);
    background: rgba(111, 66, 193, 0.05);
}

/* === PATTERN OVERVIEW STYLING === */
.overview-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.representations-row {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.repr {
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-mono);
}

.metrics-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.metric {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    min-width: 80px;
    text-align: center;
}

/* === PROMINENT BALANCE & COG LAYOUT === */
.balance-cog-layout {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    justify-content: space-between;
}

.balance-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    min-width: 200px;
}

.balance-score-large {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-base);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-sm);
}

.balance-value {
    font-size: var(--font-size-lg);
    color: var(--color-secondary);
    text-align: center;
    font-weight: var(--font-weight-medium);
}

.balance-status {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    text-align: center;
    color: var(--color-dark);
}

.cog-visualization-prominent {
    flex-shrink: 0;
}

.cog-visualization-prominent .cog-visualization {
    margin: 0 !important;
}

.info-btn-inline {
    background: none;
    border: none;
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-base);
    margin-left: var(--spacing-xs);
}

.info-btn-inline:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* === ADDITIONAL ANALYSIS SUBSECTIONS === */
.additional-analysis {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.analysis-subsection {
    flex: 1;
    min-width: 200px;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--border-radius-base);
    border: 1px solid var(--border-light);
}

.subsection-title {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.subsection-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.formula-display {
    font-family: var(--font-mono);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    background: var(--bg-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.description {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
    text-align: center;
}

.analysis-subsection.polygon {
    border-left: 4px solid var(--pattern-polygon);
}

.analysis-subsection.euclidean {
    border-left: 4px solid var(--pattern-euclidean);
}

.analysis-subsection.repetition {
    border-left: 4px solid var(--pattern-repetition);
}

.analysis-subsection.rotation {
    border-left: 4px solid var(--color-info);
}

/* === PATTERN TYPES LAYOUT === */
.type-detection {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-sm);
    align-items: center;
    padding: var(--spacing-xs);
    margin: var(--spacing-xs) 0;
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.5);
}

.type-icon {
    font-size: var(--font-size-lg);
}

.type-formula {
    font-family: var(--font-mono);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.type-desc {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
}

/* === REPETITION LAYOUT === */
.repetition-compact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.rep-unit, .rep-stats {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--border-radius-sm);
}

/* === ROTATION LAYOUT === */
.rotation-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.rotation-formula {
    font-family: var(--font-mono);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.rotation-details {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
}

/* === RESPONSIVE GRID === */
@media (max-width: 768px) {
    .analysis-grid {
        grid-template-columns: 1fr;
        max-height: 600px;
    }
    
    .balance-visual-layout {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cog-visualization-compact {
        margin: 0 auto;
    }
}

/* === VISUALIZATION COMPONENTS === */
.cog-visualization {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.cog-circle {
    width: 80px;
    height: 80px;
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-round);
    position: relative;
    background: radial-gradient(circle at center, var(--color-white) 0%, var(--bg-primary) 100%);
    flex-shrink: 0;
}

.cog-point {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-danger);
    border-radius: var(--border-radius-round);
    transform: translate(-50%, -50%);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-white);
}

.onset-point {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--color-success);
    border-radius: var(--border-radius-round);
    transform: translate(-50%, -50%);
    border: 1px solid var(--color-white);
    box-shadow: var(--shadow-sm);
}

/* === PROGRESS BAR === */
.progress-bar {
    width: 100%;
    height: 20px;
    background: var(--border-light);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    margin: var(--spacing-md) 0;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    transition: width var(--transition-slow);
    border-radius: var(--border-radius-xl);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

/* === EXPLORATION CONTROLS === */
.exploration-controls {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid var(--color-warning);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

/* === INFORMATION BOXES === */
.info-box {
    background: rgba(227, 242, 253, 0.5);
    border: 1px solid var(--color-info);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.theory-box {
    background: rgba(232, 244, 248, 0.5);
    border: 1px solid var(--color-info);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
}

.warning-box {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid var(--color-warning);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid var(--color-warning);
}

.error-box {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--color-danger);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid var(--color-danger);
}

.success-box {
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--color-success);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid var(--color-success);
}

/* === COMPACT OUTPUT === */
.compact-output {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    box-shadow: var(--shadow-sm);
}

.compact-result {
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* ================================================
   6. UTILITY CLASSES
   ================================================ */

/* === INTERACTIVE ELEMENTS === */
.clickable {
    cursor: pointer;
    color: var(--color-primary);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.clickable:hover {
    color: var(--color-primary-dark);
}

.clickable-unit {
    display: inline-block;
    background: var(--border-light);
    padding: 2px var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    margin: 0 var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid var(--border-medium);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
}

.clickable-unit:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* === VISIBILITY UTILITIES === */
.hidden {
    display: none !important;
}

.invisible {
    visibility: hidden !important;
}

.visible {
    visibility: visible !important;
}

.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* === SPACING UTILITIES === */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--spacing-xs) !important; }
.m-2 { margin: var(--spacing-sm) !important; }
.m-3 { margin: var(--spacing-md) !important; }
.m-4 { margin: var(--spacing-lg) !important; }
.m-5 { margin: var(--spacing-xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }
.mt-5 { margin-top: var(--spacing-xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }
.mb-5 { margin-bottom: var(--spacing-xl) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }
.p-5 { padding: var(--spacing-xl) !important; }

/* === TEXT UTILITIES === */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-justify { text-align: justify !important; }

.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-success { color: var(--color-success) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-info { color: var(--color-info) !important; }
.text-light { color: var(--color-lighter) !important; }
.text-dark { color: var(--color-dark) !important; }

.text-bold { font-weight: var(--font-weight-bold) !important; }
.text-normal { font-weight: var(--font-weight-normal) !important; }
.text-italic { font-style: italic !important; }
.text-uppercase { text-transform: uppercase !important; }
.text-lowercase { text-transform: lowercase !important; }

/* === BACKGROUND UTILITIES === */
.bg-primary { background-color: var(--color-primary) !important; }
.bg-secondary { background-color: var(--color-secondary) !important; }
.bg-success { background-color: var(--color-success) !important; }
.bg-danger { background-color: var(--color-danger) !important; }
.bg-warning { background-color: var(--color-warning) !important; }
.bg-info { background-color: var(--color-info) !important; }
.bg-light { background-color: var(--color-light) !important; }
.bg-dark { background-color: var(--color-dark) !important; }
.bg-white { background-color: var(--color-white) !important; }

/* === BORDER UTILITIES === */
.border { border: 1px solid var(--border-light) !important; }
.border-top { border-top: 1px solid var(--border-light) !important; }
.border-bottom { border-bottom: 1px solid var(--border-light) !important; }
.border-left { border-left: 1px solid var(--border-light) !important; }
.border-right { border-right: 1px solid var(--border-light) !important; }

.rounded { border-radius: var(--border-radius-base) !important; }
.rounded-sm { border-radius: var(--border-radius-sm) !important; }
.rounded-lg { border-radius: var(--border-radius-lg) !important; }
.rounded-full { border-radius: var(--border-radius-round) !important; }

/* === SHADOW UTILITIES === */
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-base) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-none { box-shadow: none !important; }

/* ================================================
   7. RESPONSIVE DESIGN
   ================================================ */

/* === MOBILE FIRST BREAKPOINTS === */

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
    .main-container {
        gap: var(--spacing-xxl);
    }
    
    .sm\:grid-cols-1 { grid-template-columns: 1fr; }
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .sm\:hidden { display: none; }
    .sm\:block { display: block; }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    body {
        padding: var(--spacing-xxl);
    }
    
    .md\:grid-cols-1 { grid-template-columns: 1fr; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .md\:hidden { display: none; }
    .md\:block { display: block; }
    .md\:flex { display: flex; }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .lg\:grid-cols-1 { grid-template-columns: 1fr; }
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .lg\:hidden { display: none; }
    .lg\:block { display: block; }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .main-container {
        gap: var(--spacing-xxxl);
    }
    
    .xl\:grid-cols-1 { grid-template-columns: 1fr; }
    .xl\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .xl\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .xl\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* === RESPONSIVE LAYOUT ADJUSTMENTS === */

/* Mobile adjustments */
@media (max-width: 767px) {
    .main-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .modal {
        top: var(--spacing-md);
        left: var(--spacing-md);
        right: var(--spacing-md);
        bottom: var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .search-filter {
        flex-direction: column;
        align-items: stretch;
    }
    
    .database-controls {
        flex-direction: column;
    }
    
    .database-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .pattern-representations {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cog-visualization {
        flex-direction: column;
        text-align: center;
    }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 991px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Desktop adjustments */
@media (min-width: 1400px) {
    .main-container {
        grid-template-columns: 1fr 1fr 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* ================================================
   8. ANIMATION & TRANSITIONS
   ================================================ */

/* === KEYFRAME ANIMATIONS === */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes sparkle {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
    50% {
        transform: scale(1.2) rotate(180deg);
        opacity: 0.8;
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -8px, 0);
    }
    70% {
        transform: translate3d(0, -4px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

/* === ANIMATION CLASSES === */
.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-sparkle {
    animation: sparkle 3s infinite;
}

.animate-fadeIn {
    animation: fadeIn 0.5s ease-out;
}

.animate-slideInRight {
    animation: slideInRight 0.3s ease-out;
}

.animate-bounce {
    animation: bounce 1s infinite;
}

/* === HOVER ANIMATIONS === */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hover-grow {
    transition: transform var(--transition-base);
}

.hover-grow:hover {
    transform: scale(1.05);
}

/* === LOADING STATES === */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

/* ================================================
   9. THEME VARIANTS
   ================================================ */

/* === DARK THEME === */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-tertiary: #3a3a3a;
        --color-dark: #e9ecef;
        --color-darker: #f8f9fa;
        --color-secondary: #adb5bd;
        --border-light: #404040;
        --border-medium: #525252;
        --border-dark: #666666;
    }
    
    .input {
        background: var(--bg-secondary);
        color: var(--color-dark);
    }
    
    .pattern-entry:hover {
        background: rgba(255, 255, 255, 0.05);
    }
    
    .modal {
        background: var(--bg-secondary);
        border-color: var(--border-dark);
    }
}

/* === HIGH CONTRAST THEME === */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #0000ff;
        --color-success: #008000;
        --color-danger: #ff0000;
        --color-warning: #ffa500;
        --border-light: #000000;
        --border-medium: #000000;
    }
    
    .btn {
        border-width: 3px;
    }
    
    .pattern-entry {
        border-bottom: 2px solid var(--border-medium);
    }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading::after {
        animation: none;
    }
    
    .animate-pulse,
    .animate-sparkle,
    .animate-bounce {
        animation: none;
    }
}

/* ================================================
   10. PRINT STYLES
   ================================================ */

@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    body {
        background: white !important;
        padding: 0 !important;
        font-size: 12pt !important;
        line-height: 1.5 !important;
    }
    
    .main-container {
        display: block !important;
        max-width: none !important;
    }
    
    .section {
        break-inside: avoid;
        margin: 0 0 1em 0 !important;
        padding: 1em !important;
        border: 1px solid #ccc !important;
    }
    
    .btn,
    .modal,
    .pattern-actions,
    .database-controls,
    .search-filter {
        display: none !important;
    }
    
    .pattern-entry {
        border-bottom: 1px solid #ccc !important;
        padding: 0.5em 0 !important;
    }
    
    .pattern-star {
        font-size: 12pt !important;
    }
    
    .analysis-item {
        border-left: 4px solid #333 !important;
        margin: 1em 0 !important;
        padding: 0.5em !important;
    }
    
    .mathematical-formula {
        font-family: "Times New Roman", serif !important;
        border-left: 2px solid #333 !important;
    }
    
    h1 {
        font-size: 18pt !important;
        margin-bottom: 1em !important;
    }
    
    h2 {
        font-size: 16pt !important;
        margin: 1em 0 0.5em 0 !important;
    }
    
    h3 {
        font-size: 14pt !important;
        margin: 0.75em 0 0.25em 0 !important;
    }
    
    .page-break {
        page-break-before: always;
    }
    
    .no-print {
        display: none !important;
    }
}

/* ================================================
   11. ACCESSIBILITY ENHANCEMENTS
   ================================================ */

/* === FOCUS MANAGEMENT === */
:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn:focus,
.input:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* === SKIP LINKS === */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius-base);
    z-index: var(--z-index-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

/* === ARIA ENHANCEMENTS === */
[aria-busy="true"] {
    cursor: wait;
}

[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

[aria-expanded="false"] .collapse-icon::before {
    content: '▶';
}

[aria-expanded="true"] .collapse-icon::before {
    content: '▼';
}

/* === TOOLTIPS === */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-darker);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    z-index: var(--z-index-tooltip);
    pointer-events: none;
    margin-bottom: var(--spacing-xs);
}

[data-tooltip]:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--color-darker);
    z-index: var(--z-index-tooltip);
    pointer-events: none;
}

/* ================================================
   12. PERFORMANCE OPTIMIZATIONS
   ================================================ */

/* === GPU ACCELERATION === */
.pattern-entry,
.btn,
.analysis-item,
.pattern-repr {
    transform: translateZ(0);
    will-change: transform;
}

/* === CONTAIN LAYOUT === */
.pattern-list {
    contain: layout style paint;
}

.analysis-section {
    contain: layout style;
}

/* === SCROLL BEHAVIOR === */
html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

/* ================================================
   13. NOTIFICATION SYSTEM
   ================================================ */

/* === NOTIFICATION CONTAINER === */
.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    pointer-events: none;
    max-width: 400px;
}

/* === NOTIFICATION STYLES === */
.notification {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-left: 4px solid var(--color-primary);
    pointer-events: auto;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease-in-out;
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

/* === NOTIFICATION TYPES === */
.notification.success {
    border-left-color: var(--color-success);
    background: #f8fff9;
}

.notification.error {
    border-left-color: var(--color-danger);
    background: #fff8f8;
}

.notification.warning {
    border-left-color: var(--color-warning);
    background: #fffdf8;
}

.notification.info {
    border-left-color: var(--color-info);
    background: #f8fcff;
}

/* === NOTIFICATION ICONS === */
.notification-icon {
    font-size: 16px;
    flex-shrink: 0;
}

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

.notification.error .notification-icon {
    color: var(--color-danger);
}

.notification.warning .notification-icon {
    color: var(--color-warning);
}

.notification.info .notification-icon {
    color: var(--color-info);
}

/* === NOTIFICATION CONTENT === */
.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.notification-message {
    opacity: 0.8;
}

/* === CLOSE BUTTON === */
.notification-close {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 2px;
    margin-left: auto;
    flex-shrink: 0;
    font-size: 14px;
    line-height: 1;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.notification-close:hover {
    opacity: 1;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .notification-container {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .notification {
        font-size: var(--font-size-xs);
    }
}

/* ================================================
   STOCHASTIC RHYTHM GENERATOR STYLES (COMPACT)
   ================================================ */

.stochastic-section-compact {
    margin-top: 8px;
}

.stochastic-compact-box {
    padding: 8px;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    background: white;
    font-size: var(--font-size-xs);
}

.stochastic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-light);
}

.stochastic-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.info-btn-small {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    padding: 2px 4px;
    font-size: 12px;
    border-radius: 3px;
    transition: background-color 0.2s ease;
}

.info-btn-small:hover {
    background: rgba(0,123,255,0.1);
}

/* === COMPACT PARAMETER CONTROLS === */
.stochastic-compact-controls {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.param-row-compact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.param-compact {
    display: flex;
    align-items: center;
    gap: 6px;
}

.param-compact label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 60px;
    flex-shrink: 0;
}

.slider-compact {
    flex: 1;
    height: 3px;
    border-radius: 2px;
    background: var(--border-light);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider-compact::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 1px solid white;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.slider-compact::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 1px solid white;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.value-compact {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-primary);
    min-width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.select-compact {
    flex: 1;
    padding: 2px 4px;
    border: 1px solid var(--border-light);
    border-radius: 3px;
    background: white;
    font-size: 11px;
    color: var(--text-primary);
}

/* === COMPACT BUTTONS === */
.buttons-compact {
    display: flex;
    gap: 4px;
    margin-top: 6px;
}

.btn-compact {
    flex: 1;
    padding: 4px 6px;
    font-size: 11px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

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

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

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

.btn-compact:disabled {
    background: var(--border-light);
    color: var(--text-secondary);
    cursor: not-allowed;
}

.btn-compact:hover:not(:disabled) {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* === COMPACT RESULTS === */
.stochastic-results-compact {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
}

.stochastic-results-compact .stochastic-results-header h4 {
    margin: 0 0 6px 0;
    font-size: 12px;
    color: var(--text-primary);
}

.stochastic-results-compact .stochastic-variations {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stochastic-results-compact .stochastic-variation {
    padding: 6px 8px;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    background: white;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 11px;
}

.stochastic-results-compact .stochastic-variation:hover {
    border-color: var(--color-primary);
    box-shadow: 0 1px 3px rgba(0,123,255,0.1);
}

.stochastic-results-compact .stochastic-variation.selected {
    border-color: var(--color-primary);
    background: rgba(0,123,255,0.05);
    box-shadow: 0 1px 4px rgba(0,123,255,0.15);
}

.stochastic-results-compact .variation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3px;
}

.stochastic-results-compact .variation-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 11px;
}

.stochastic-results-compact .variation-complexity {
    font-size: 10px;
    color: var(--color-primary);
    font-weight: 600;
}

.stochastic-results-compact .variation-pattern {
    margin: 3px 0;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.5px;
    padding: 2px 4px;
    background: var(--bg-primary);
    border-radius: 2px;
    overflow-x: auto;
}

.stochastic-results-compact .variation-stats {
    display: flex;
    gap: 8px;
    font-size: 10px;
    color: var(--text-secondary);
}

/* === PATTERN DISPLAY === */
.pattern-display {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-secondary);
    padding: 2px 4px;
    background: var(--bg-primary);
    border-radius: 2px;
    flex: 1;
    overflow-x: auto;
    white-space: nowrap;
}

.pattern-display.pattern-loaded {
    color: var(--color-primary);
    font-weight: 600;
}

.input-compact {
    flex: 1;
    padding: 2px 4px;
    border: 1px solid var(--border-light);
    border-radius: 3px;
    background: white;
    font-size: 11px;
    color: var(--text-primary);
    min-width: 40px;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .param-row-compact {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    
    .buttons-compact {
        flex-direction: column;
        gap: 3px;
    }
    
    .stochastic-results-compact .variation-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }
    
    .stochastic-results-compact .variation-stats {
        flex-direction: column;
        gap: 2px;
    }
}

/* === PLATFORM-SPECIFIC STYLES === */

/* Platform-specific keyboard shortcut display */
.platform-shortcut {
    font-weight: 600;
    color: var(--color-primary);
    padding: 1px 4px;
    background: var(--bg-light);
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

/* Platform-specific visibility */
.mac .windows-only,
.windows .mac-only,
.linux .mac-only,
.mobile .desktop-only {
    display: none !important;
}

/* Mobile keyboard alternatives */
.mobile .keyboard-instruction {
    display: none;
}

.mobile .mobile-instruction {
    display: block;
}

.desktop .mobile-instruction {
    display: none;
}

/* Touch-friendly adjustments */
.touch .input-compact,
.touch .btn-compact {
    min-height: 36px;
    padding: 8px 12px;
}

.touch .sequencer-controls-compact .btn-sequencer {
    min-width: 48px;
    min-height: 48px;
}

/* Platform-specific modifier key highlighting */
.mac .ctrl-key,
.windows .cmd-key,
.linux .cmd-key {
    opacity: 0.5;
    text-decoration: line-through;
}

.mac .cmd-key,
.windows .ctrl-key,
.linux .ctrl-key {
    font-weight: bold;
}

/* Cross-platform focus styles */
.platform-input:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

/* Mobile-specific info text */
.mobile-help {
    font-size: 0.85em;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 4px;
}

/* Platform indicator badge */
.platform-badge {
    position: fixed;
    top: 10px;
    right: 10px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-family: var(--font-mono);
    z-index: 1000;
    opacity: 0.7;
}

/* === MATHEMATICAL EQUATION RENDERING === */

/* MathJax equation containers */
.MathJax {
    font-size: 1.1em !important;
    color: var(--text-primary) !important;
}

/* Display equations (block style) */
.MathJax_Display {
    margin: 12px 0 !important;
    text-align: center;
}

/* Inline equations */
.MathJax_Preview {
    color: var(--text-secondary);
    font-style: italic;
}

/* Equation legend styling */
.equation-legend {
    font-size: 0.85em;
    color: var(--text-secondary);
    font-style: italic;
    margin: 8px 0 4px 0;
    line-height: 1.3;
}

/* Math container in info boxes */
.info-box.tex2jax_process {
    line-height: 1.4;
}

/* Ensure math equations are visible in dark themes */
.MathJax svg {
    color: var(--text-primary) !important;
}

.MathJax svg * {
    fill: currentColor !important;
    stroke: currentColor !important;
}

/* Loading state for equations */
.MathJax_Processing {
    visibility: hidden;
}

.MathJax_Processed {
    visibility: visible;
}

/* UPI Progressive Results */
.upi-progressive-results {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-sm);
}

.progressive-results-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
}

.progressive-results-header h3 {
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--primary-color);
    font-size: 1.1em;
}

.progressive-results-header p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9em;
}

.progressive-results-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-height: 300px;
    overflow-y: auto;
}

.transformation-item {
    display: grid;
    grid-template-columns: 80px 1fr 80px;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    transition: all 0.2s ease;
    cursor: pointer;
}

.transformation-item:hover {
    background: var(--bg-hover);
}

.transformation-item.active {
    background: var(--accent-color);
    border-color: var(--primary-color);
    color: white;
}

.transformation-item .step-number {
    font-weight: bold;
    font-size: 0.9em;
    color: var(--text-muted);
}

.transformation-item.active .step-number {
    color: white;
}

.transformation-item .pattern-display {
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
    letter-spacing: 1px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.transformation-item .onset-count {
    text-align: right;
    font-size: 0.9em;
    color: var(--text-muted);
}

.transformation-item.active .onset-count {
    color: white;
}

/* Responsive equation sizing */
@media (max-width: 768px) {
    .MathJax {
        font-size: 1.0em !important;
    }
    
    .MathJax_Display {
        margin: 8px 0 !important;
    }
    
    .equation-legend {
        font-size: 0.8em;
    }
    
    .transformation-item {
        grid-template-columns: 60px 1fr 60px;
        font-size: 0.9em;
    }
}

/* ================================================
   TRANSFORMER INPUT MODULE
   ================================================ */

.transformer-input-module {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

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

.transformer-main-row {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    flex-wrap: wrap;
}

.transformer-params-inline {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.input-group-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.input-group-inline label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    white-space: nowrap;
}

.transformer-input-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-sm);
    text-align: center;
    width: 60px;
    transition: border-color var(--transition-base);
}

.transformer-input-small:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

.transformer-generate-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-top: var(--spacing-sm);
}

.transformer-input-main {
    flex: 1;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-base);
}

.transformer-input-main:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

.radio-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-base);
    transition: background-color var(--transition-base);
}

.radio-label:hover {
    background-color: var(--bg-primary);
}

.transformer-radio {
    margin: 0;
    cursor: pointer;
}

.transformer-select-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-sm);
    background: var(--bg-secondary);
    min-width: 100px;
    transition: border-color var(--transition-base);
}

.transformer-select-small:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

.transformer-range-small {
    width: 80px;
    height: 20px;
}

.intensity-value {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    min-width: 35px;
    text-align: right;
}

.random-params {
    display: none !important;
}

.transformer-input-module[data-mode="random"] .random-params {
    display: flex !important;
}

.transformer-input-module[data-mode="random"] .standard-params {
    display: none !important;
}

.polygon-params {
    display: none !important;
}

.transformer-input-module[data-mode="polygon"] .polygon-params {
    display: flex !important;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.transformer-input-module[data-mode="polygon"] .standard-params,
.transformer-input-module[data-mode="polygon"] .random-params {
    display: none !important;
}

.polygon-builder {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.polygon-term {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    background: var(--bg-primary);
}

.polygon-sign-container {
    min-width: 30px;
    text-align: center;
}

.polygon-sign {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.polygon-operation {
    padding: var(--spacing-xs);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-base);
    background: var(--bg-secondary);
    min-width: 40px;
    text-align: center;
}

.polygon-inputs {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
    flex: 1;
}

.polygon-icon {
    font-size: var(--font-size-lg);
    margin-left: var(--spacing-xs);
    color: var(--color-primary);
    font-weight: bold;
}

.polygon-remove-btn {
    background: var(--color-danger);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
}

.polygon-remove-btn:hover {
    background: #c82333;
}

.polygon-add-container {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-sm);
}

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

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 80px;
}

.input-group label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.transformer-input {
    padding: var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-base);
    text-align: center;
    width: 80px;
    transition: border-color var(--transition-base);
}

.transformer-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

.transformer-select {
    padding: var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-base);
    font-size: var(--font-size-base);
    background: var(--bg-secondary);
    min-width: 180px;
    transition: border-color var(--transition-base);
}

.transformer-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

.checkbox-label {
    display: flex !important;
    flex-direction: row !important;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-sm) !important;
}

.transformer-checkbox {
    width: auto !important;
    margin: 0 !important;
}

.transformer-progress {
    grid-area: progress;
    margin-top: var(--spacing-md);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-light);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-info));
    transition: width var(--transition-base);
    width: 0%;
}

/* Mode-specific styling */
.transformer-input-module[data-mode="euclidean"] .progress-fill {
    background: linear-gradient(90deg, var(--pattern-euclidean), #ff9500);
}

.transformer-input-module[data-mode="dilcue"] .progress-fill {
    background: linear-gradient(90deg, #ff6b6b, var(--pattern-euclidean));
}

.transformer-input-module[data-mode="barlow"] .progress-fill {
    background: linear-gradient(90deg, var(--color-primary), var(--color-info));
}

.transformer-input-module[data-mode="wolrab"] .progress-fill {
    background: linear-gradient(90deg, #6c5ce7, var(--color-primary));
}

/* Responsive design */
@media (max-width: 1200px) {
    .transformer-controls {
        grid-template-columns: 1fr 1fr;
        grid-template-areas: 
            "mode target"
            "base base"
            "actions actions"
            "progress progress";
    }
    
    .transformer-base-params {
        justify-content: space-around;
    }
}

@media (max-width: 768px) {
    .transformer-controls {
        grid-template-columns: 1fr;
        grid-template-areas: 
            "mode"
            "base"
            "target"
            "actions"
            "progress";
    }
    
    .transformer-base-params {
        justify-content: center;
    }
    
    .transformer-target-params {
        align-items: center;
    }
    
    .transformer-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .transformer-input {
        width: 70px;
    }
}
}