/* ============================================
   Living Expense Distribution Calculator
   Neobrutalism Design System v4.3
   ============================================ */

/* Global box-sizing */
.living-expense-distribution-calculator-container,
.living-expense-distribution-calculator-container *,
.living-expense-distribution-calculator-container *::before,
.living-expense-distribution-calculator-container *::after {
  box-sizing: border-box;
}

/* ============================================
   CSS Variables - Light Mode (Default)
   ============================================ */
.living-expense-distribution-calculator-container {
  /* Background colors */
  --bg-primary: #f5f5f0;
  --bg-secondary: #fff;
  --bg-section: #fff;
  
  /* Borders */
  --border-color: #333;
  
  /* Text colors */
  --text-primary: #222;
  --text-secondary: #555;
  --text-light: #666;
  
  /* Brand colors */
  --color-accent: #3498db;
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #e74c3c;
  --color-purple: #9b59b6;
  --color-teal: #1abc9c;
  
  /* Category colors */
  --color-needs: #e74c3c;
  --color-wants: #3498db;
  --color-savings: #27ae60;
  --color-others: #9b59b6;
  
  /* Shadows (neobrutalism) */
  --shadow-sm: 2px 2px 0 rgba(0,0,0,0.1);
  --shadow-md: 4px 4px 0 rgba(0,0,0,0.15);
  --shadow-lg: 8px 8px 0 rgba(0,0,0,0.15);
  
  /* Border radius */
  --radius-container: 8px;
  --radius-section: 6px;
  --radius-button: 4px;
  --radius-input: 4px;
  
  /* Input focus */
  --input-focus-bg: #fffacd;
  
  /* Header title */
  --title-color: #2c3e50;
  --title-shadow: 2px 2px 0 rgba(255,255,255,0.5);
  
  /* Button hover background */
  --btn-hover-overlay: rgba(0,0,0,0.1);
  
  /* Copy button background */
  --copy-btn-bg: #fff;
  --copy-btn-hover-bg: #f0f0f0;
  
  /* Chart colors */
  --chart-grid: rgba(0,0,0,0.1);
  --chart-text: #555;
}

/* ============================================
   Dark Mode - Manual Toggle
   ============================================ */
.living-expense-distribution-calculator-container.dark {
  /* Background colors */
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-section: #2d2d2d;
  
  /* Borders */
  --border-color: #e0e0e0;
  
  /* Text colors */
  --text-primary: #e8e8e8;
  --text-secondary: #b0b0b0;
  --text-light: #909090;
  
  /* Brand colors - brighter for dark background */
  --color-accent: #5dade2;
  --color-success: #52c77a;
  --color-warning: #f5b041;
  --color-danger: #ec7063;
  --color-purple: #af7ac5;
  --color-teal: #48d1cc;
  
  /* Category colors - brighter */
  --color-needs: #ec7063;
  --color-wants: #5dade2;
  --color-savings: #52c77a;
  --color-others: #af7ac5;
  
  /* Shadows - light color */
  --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
  --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
  --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);
  
  /* Input focus */
  --input-focus-bg: #3a3a3a;
  
  /* Header title */
  --title-color: #7fb3d5;
  --title-shadow: 2px 2px 0 rgba(0,0,0,0.5);
  
  /* Button hover background */
  --btn-hover-overlay: rgba(255,255,255,0.1);
  
  /* Copy button background */
  --copy-btn-bg: #3a3a3a;
  --copy-btn-hover-bg: #4a4a4a;
  
  /* Chart colors */
  --chart-grid: rgba(255,255,255,0.1);
  --chart-text: #b0b0b0;
}

/* ============================================
   Dark Mode - System Preference Auto Detection
   ============================================ */
@media (prefers-color-scheme: dark) {
  .living-expense-distribution-calculator-container:not(.dark):not(.light) {
    /* Background colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-section: #2d2d2d;
    
    /* Borders */
    --border-color: #e0e0e0;
    
    /* Text colors */
    --text-primary: #e8e8e8;
    --text-secondary: #b0b0b0;
    --text-light: #909090;
    
    /* Brand colors */
    --color-accent: #5dade2;
    --color-success: #52c77a;
    --color-warning: #f5b041;
    --color-danger: #ec7063;
    --color-purple: #af7ac5;
    --color-teal: #48d1cc;
    
    /* Category colors */
    --color-needs: #ec7063;
    --color-wants: #5dade2;
    --color-savings: #52c77a;
    --color-others: #af7ac5;
    
    /* Shadows */
    --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
    --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
    --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);
    
    /* Input focus */
    --input-focus-bg: #3a3a3a;
    
    /* Header title */
    --title-color: #7fb3d5;
    --title-shadow: 2px 2px 0 rgba(0,0,0,0.5);
    
    /* Button hover background */
    --btn-hover-overlay: rgba(255,255,255,0.1);
    
    /* Copy button background */
    --copy-btn-bg: #3a3a3a;
    --copy-btn-hover-bg: #4a4a4a;
    
    /* Chart colors */
    --chart-grid: rgba(255,255,255,0.1);
    --chart-text: #b0b0b0;
  }
}

/* ============================================
   Main Container
   ============================================ */
.living-expense-distribution-calculator-container {
  position: relative;
  max-width: 1100px;
  width: 100%;
  margin: 8px auto;
  padding: 8px;
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-container);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  line-height: 1.5;
}

/* ============================================
   Dark Mode Toggle Button
   ============================================ */
.living-expense-distribution-calculator-container .dark-mode-toggle {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 6px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-primary);
  z-index: 10;
}

.living-expense-distribution-calculator-container .dark-mode-toggle:hover {
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
}

.living-expense-distribution-calculator-container .dark-mode-toggle:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* ============================================
   Header
   ============================================ */
.living-expense-distribution-calculator-container .calculator-header {
  text-align: center;
  margin-bottom: 8px;
  padding: 8px;
}

.living-expense-distribution-calculator-container .main-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--title-color);
  margin: 0 0 6px 0;
  text-shadow: var(--title-shadow);
}

.living-expense-distribution-calculator-container .subtitle {
  font-size: 15.5px;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================
   Main Grid Layout - 2 Column
   ============================================ */
.living-expense-distribution-calculator-container .main-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 8px;
}

/* ============================================
   Sections
   ============================================ */
.living-expense-distribution-calculator-container .input-section,
.living-expense-distribution-calculator-container .result-section {
  background: var(--bg-section);
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-md);
}

.living-expense-distribution-calculator-container .section-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .section-header svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent);
}

/* ============================================
   Input Groups
   ============================================ */
.living-expense-distribution-calculator-container .input-group {
  margin-bottom: 8px;
}

.living-expense-distribution-calculator-container .input-group label {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .input-group input,
.living-expense-distribution-calculator-container .input-group select {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 16px;
  font-family: inherit;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.living-expense-distribution-calculator-container .input-group input:focus,
.living-expense-distribution-calculator-container .input-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--input-focus-bg);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

.living-expense-distribution-calculator-container .input-group input[type="number"] {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Input with unit */
.living-expense-distribution-calculator-container .input-with-unit {
  display: flex;
  align-items: center;
  gap: 6px;
}

.living-expense-distribution-calculator-container .input-with-unit input {
  flex: 1;
}

.living-expense-distribution-calculator-container .input-with-unit .unit {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ============================================
   Custom Rule Inputs
   ============================================ */
.living-expense-distribution-calculator-container .custom-rule-inputs {
  margin-bottom: 8px;
  padding: 8px;
  background: var(--bg-primary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-section);
}

.living-expense-distribution-calculator-container .custom-rule-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.living-expense-distribution-calculator-container .custom-input label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 3px;
}

.living-expense-distribution-calculator-container .custom-input input {
  width: 100%;
  padding: 5px 8px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 15px;
  font-family: 'Courier New', monospace;
  font-weight: 600;
  text-align: center;
}

.living-expense-distribution-calculator-container .custom-input input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--input-focus-bg);
}

/* ============================================
   Expense Categories
   ============================================ */
.living-expense-distribution-calculator-container .expense-categories {
  margin-bottom: 8px;
}

.living-expense-distribution-calculator-container .category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .add-category-btn {
  padding: 4px 10px;
  background: var(--color-teal);
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: var(--shadow-sm);
}

.living-expense-distribution-calculator-container .add-category-btn:hover {
  filter: brightness(1.05);
  transform: translate(0.5px, 0.5px);
}

.living-expense-distribution-calculator-container .add-category-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Expense List */
.living-expense-distribution-calculator-container .expense-list {
  padding-right: 4px;
}

.living-expense-distribution-calculator-container .expense-list::-webkit-scrollbar {
  width: 6px;
}

.living-expense-distribution-calculator-container .expense-list::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 3px;
}

.living-expense-distribution-calculator-container .expense-list::-webkit-scrollbar-thumb {
  background: var(--text-light);
  border-radius: 3px;
}

/* Expense Item */
.living-expense-distribution-calculator-container .expense-item {
  display: grid;
  grid-template-columns: 1fr 1fr 28px;
  gap: 6px;
  margin-bottom: 4px;
  padding: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  align-items: center;
}

/* Expense Group */
.living-expense-distribution-calculator-container .expense-group {
  margin-bottom: 10px;
  padding: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
}

.living-expense-distribution-calculator-container .expense-group-header {
  font-size: 15px;
  font-weight: 700;
  padding: 6px 8px;
  margin-bottom: 6px;
  border-radius: var(--radius-button);
  color: #fff;
}

.living-expense-distribution-calculator-container .expense-group-header.needs {
  background: var(--color-needs);
}

.living-expense-distribution-calculator-container .expense-group-header.wants {
  background: var(--color-wants);
}

.living-expense-distribution-calculator-container .expense-group-header.savings {
  background: var(--color-savings);
}

.living-expense-distribution-calculator-container .expense-group-header.others {
  background: var(--color-purple);
}

.living-expense-distribution-calculator-container .expense-group-items {
  margin-bottom: 6px;
}

.living-expense-distribution-calculator-container .add-item-btn {
  width: 100%;
  padding: 5px 10px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-button);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.living-expense-distribution-calculator-container .add-item-btn:hover {
  background: var(--input-focus-bg);
  color: var(--text-primary);
  border-style: solid;
}

.living-expense-distribution-calculator-container .expense-item .category-name {
  padding: 4px 6px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 14px;
}

.living-expense-distribution-calculator-container .expense-item .category-amount {
  padding: 4px 6px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 14px;
  font-family: 'Courier New', monospace;
  font-weight: 600;
  text-align: right;
}

.living-expense-distribution-calculator-container .expense-item .category-name:focus,
.living-expense-distribution-calculator-container .expense-item .category-amount:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--input-focus-bg);
}

.living-expense-distribution-calculator-container .expense-item .remove-btn {
  width: 24px;
  height: 24px;
  padding: 0;
  background: var(--color-danger);
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.living-expense-distribution-calculator-container .expense-item .remove-btn:hover {
  filter: brightness(1.1);
  transform: scale(1.05);
}

.living-expense-distribution-calculator-container .expense-item .remove-btn:active {
  transform: scale(0.95);
}

/* ============================================
   Buttons
   ============================================ */
.living-expense-distribution-calculator-container .calculate-btn {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  background: var(--color-accent);
  color: #fff;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-button);
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 4px 4px 0 rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.living-expense-distribution-calculator-container .calculate-btn:hover {
  filter: brightness(1.05);
  transform: translate(1px, 1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}

.living-expense-distribution-calculator-container .calculate-btn:active {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.living-expense-distribution-calculator-container .button-group {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.living-expense-distribution-calculator-container .sample-btn,
.living-expense-distribution-calculator-container .reset-btn {
  flex: 1;
  padding: 6px 10px;
  font-size: 15.5px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.living-expense-distribution-calculator-container .sample-btn {
  background: var(--color-success);
  color: #fff;
}

.living-expense-distribution-calculator-container .reset-btn {
  background: var(--color-warning);
  color: #fff;
}

.living-expense-distribution-calculator-container .sample-btn:hover,
.living-expense-distribution-calculator-container .reset-btn:hover {
  filter: brightness(1.05);
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.2);
}

.living-expense-distribution-calculator-container .sample-btn:active,
.living-expense-distribution-calculator-container .reset-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* ============================================
   File Management Section
   ============================================ */
.living-expense-distribution-calculator-container .file-management {
  margin-top: 8px;
  padding: 8px;
  background: var(--bg-primary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-section);
}

.living-expense-distribution-calculator-container .file-management-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  text-align: center;
}

.living-expense-distribution-calculator-container .file-button-group {
  display: flex;
  gap: 6px;
}

.living-expense-distribution-calculator-container .file-btn {
  flex: 1;
  padding: 7px 8px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: #fff;
}

.living-expense-distribution-calculator-container .file-btn:hover {
  filter: brightness(1.05);
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
}

.living-expense-distribution-calculator-container .file-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.living-expense-distribution-calculator-container .file-btn.save-btn {
  background: var(--color-accent);
}

.living-expense-distribution-calculator-container .file-btn.load-btn {
  background: var(--color-purple);
}

.living-expense-distribution-calculator-container .file-btn.example-btn {
  background: var(--color-teal);
}

/* ============================================
   Summary Cards
   ============================================ */
.living-expense-distribution-calculator-container .summary-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 8px;
}

.living-expense-distribution-calculator-container .summary-card {
  padding: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.living-expense-distribution-calculator-container .card-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.living-expense-distribution-calculator-container .card-value {
  font-size: 18px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .income-card .card-value {
  color: var(--color-accent);
}

.living-expense-distribution-calculator-container .expense-card .card-value {
  color: var(--color-danger);
}

.living-expense-distribution-calculator-container .balance-card .card-value {
  color: var(--color-success);
}

.living-expense-distribution-calculator-container .balance-card.negative .card-value {
  color: var(--color-danger);
}

/* ============================================
   Charts Container
   ============================================ */
.living-expense-distribution-calculator-container .charts-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

.living-expense-distribution-calculator-container .chart-box {
  padding: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-sm);
}

.living-expense-distribution-calculator-container .chart-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  text-align: center;
}

/* Donut Chart */
.living-expense-distribution-calculator-container .donut-chart-wrapper {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 0 auto 8px;
}

.living-expense-distribution-calculator-container .donut-chart-wrapper canvas {
  width: 100% !important;
  height: 100% !important;
}

.living-expense-distribution-calculator-container .donut-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}

.living-expense-distribution-calculator-container .donut-label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
}

.living-expense-distribution-calculator-container .donut-value {
  display: block;
  font-size: 16px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--text-primary);
}

/* Chart Legend */
.living-expense-distribution-calculator-container .chart-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.living-expense-distribution-calculator-container .legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text-secondary);
}

.living-expense-distribution-calculator-container .legend-color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

/* Bar Chart */
.living-expense-distribution-calculator-container .bar-chart-wrapper {
  height: 180px;
}

.living-expense-distribution-calculator-container .bar-chart-wrapper canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ============================================
   Breakdown Section
   ============================================ */
.living-expense-distribution-calculator-container .breakdown-section {
  margin-bottom: 8px;
}

.living-expense-distribution-calculator-container .breakdown-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.living-expense-distribution-calculator-container .breakdown-group {
  padding: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  margin-bottom: 6px;
}

.living-expense-distribution-calculator-container .breakdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.living-expense-distribution-calculator-container .breakdown-type {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .breakdown-budget {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Progress Bar */
.living-expense-distribution-calculator-container .progress-bar {
  height: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 6px;
}

.living-expense-distribution-calculator-container .progress-fill {
  height: 100%;
  transition: width 0.5s ease;
  border-radius: 6px;
}

.living-expense-distribution-calculator-container .progress-fill.needs {
  background: linear-gradient(90deg, var(--color-needs), #c0392b);
}

.living-expense-distribution-calculator-container .progress-fill.wants {
  background: linear-gradient(90deg, var(--color-wants), #2980b9);
}

.living-expense-distribution-calculator-container .progress-fill.savings {
  background: linear-gradient(90deg, var(--color-savings), #1e8449);
}

.living-expense-distribution-calculator-container .progress-fill.others {
  background: linear-gradient(90deg, var(--color-purple), #7d3c98);
}

/* Breakdown Detail */
.living-expense-distribution-calculator-container .breakdown-detail {
  font-size: 14px;
  color: var(--text-secondary);
}

.living-expense-distribution-calculator-container .detail-row {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
  border-bottom: 1px dashed var(--border-color);
}

.living-expense-distribution-calculator-container .detail-row:last-child {
  border-bottom: none;
}

.living-expense-distribution-calculator-container .detail-name {
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .detail-amount {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .detail-total {
  font-weight: 700;
  padding-top: 4px;
  margin-top: 4px;
  border-top: 1px solid var(--border-color);
}

/* ============================================
   Advice Section
   ============================================ */
.living-expense-distribution-calculator-container .advice-section {
  padding: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-sm);
}

.living-expense-distribution-calculator-container .advice-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.living-expense-distribution-calculator-container .advice-content {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.living-expense-distribution-calculator-container .advice-item {
  padding: 6px 0;
  border-bottom: 1px dashed var(--border-color);
}

.living-expense-distribution-calculator-container .advice-item:last-child {
  border-bottom: none;
}

.living-expense-distribution-calculator-container .advice-item.good {
  color: var(--color-success);
}

.living-expense-distribution-calculator-container .advice-item.warning {
  color: var(--color-warning);
}

.living-expense-distribution-calculator-container .advice-item.danger {
  color: var(--color-danger);
}

/* ============================================
   Info Section
   ============================================ */
.living-expense-distribution-calculator-container .info-section {
  margin-top: 8px;
  padding: 10px;
  background: var(--bg-section);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  box-shadow: var(--shadow-md);
}

.living-expense-distribution-calculator-container .info-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .info-header svg {
  stroke: var(--color-purple);
}

.living-expense-distribution-calculator-container .info-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.living-expense-distribution-calculator-container .info-item {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.living-expense-distribution-calculator-container .info-item strong {
  color: var(--text-primary);
}

/* ============================================
   Toast Notification
   ============================================ */
.living-expense-distribution-calculator-container .toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  padding: 10px 15px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s;
  z-index: 1000;
  max-width: 300px;
  pointer-events: none;
}

.living-expense-distribution-calculator-container .toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.living-expense-distribution-calculator-container .toast svg {
  color: var(--color-success);
  stroke: var(--color-success);
  flex-shrink: 0;
}

.living-expense-distribution-calculator-container .toast-content {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.living-expense-distribution-calculator-container .toast-title {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.living-expense-distribution-calculator-container .toast-value {
  font-size: 14px;
  color: var(--text-secondary);
  font-family: 'Courier New', monospace;
  word-break: break-all;
}

/* ============================================
   Responsive - Tablet (768px or less)
   ============================================ */
@media (max-width: 768px) {
  .living-expense-distribution-calculator-container {
    margin: 6px 5px;
    padding: 7px;
    width: calc(100% - 10px);
  }

  .living-expense-distribution-calculator-container .main-grid {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .living-expense-distribution-calculator-container .main-title {
    font-size: 24px;
  }

  .living-expense-distribution-calculator-container .section-header {
    font-size: 15px;
  }

  .living-expense-distribution-calculator-container .dark-mode-toggle {
    font-size: 14px;
    padding: 5px 8px;
    top: 7px;
    right: 7px;
  }

  .living-expense-distribution-calculator-container .charts-container {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .living-expense-distribution-calculator-container .summary-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
  }

  .living-expense-distribution-calculator-container .card-value {
    font-size: 14px;
  }

  .living-expense-distribution-calculator-container .info-content {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .living-expense-distribution-calculator-container .expense-item {
    grid-template-columns: 1fr 1fr 24px;
  }

  .living-expense-distribution-calculator-container .file-button-group {
    flex-wrap: wrap;
  }

  .living-expense-distribution-calculator-container .file-btn {
    flex: 1 1 calc(50% - 3px);
    font-size: 13px;
  }

  .living-expense-distribution-calculator-container .file-btn.example-btn {
    flex: 1 1 100%;
  }
}

/* ============================================
   Responsive - Mobile (480px or less)
   ============================================ */
@media (max-width: 480px) {
  .living-expense-distribution-calculator-container {
    padding: 6px;
    border-width: 1px;
  }

  .living-expense-distribution-calculator-container .input-section,
  .living-expense-distribution-calculator-container .result-section {
    padding: 6px;
  }

  .living-expense-distribution-calculator-container .main-title {
    font-size: 22px;
  }

  .living-expense-distribution-calculator-container .subtitle {
    font-size: 12.5px;
  }

  .living-expense-distribution-calculator-container .custom-rule-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .living-expense-distribution-calculator-container .expense-item {
    grid-template-columns: 1fr 1fr 22px;
    padding: 5px;
    gap: 4px;
  }

  .living-expense-distribution-calculator-container .expense-item .category-name,
  .living-expense-distribution-calculator-container .expense-item .category-amount {
    font-size: 13px;
    padding: 4px 5px;
  }

  .living-expense-distribution-calculator-container .expense-group-header {
    font-size: 14px;
    padding: 5px 6px;
  }

  .living-expense-distribution-calculator-container .add-item-btn {
    font-size: 12px;
    padding: 6px 8px;
    min-height: 38px;
  }

  .living-expense-distribution-calculator-container .remove-btn {
    min-width: 30px;
    min-height: 30px;
  }

  .living-expense-distribution-calculator-container .summary-cards {
    grid-template-columns: 1fr;
  }

  .living-expense-distribution-calculator-container .card-label {
    font-size: 11px;
  }

  .living-expense-distribution-calculator-container .card-value {
    font-size: 15px;
  }

  .living-expense-distribution-calculator-container .donut-chart-wrapper {
    width: 140px;
    height: 140px;
  }

  .living-expense-distribution-calculator-container .bar-chart-wrapper {
    height: 150px;
  }

  .living-expense-distribution-calculator-container .button-group {
    flex-direction: column;
  }

  .living-expense-distribution-calculator-container .sample-btn,
  .living-expense-distribution-calculator-container .reset-btn {
    font-size: 14.5px;
  }

  .living-expense-distribution-calculator-container .file-button-group {
    flex-direction: column;
  }

  .living-expense-distribution-calculator-container .file-btn {
    flex: 1 1 100%;
    font-size: 13px;
    padding: 6px;
  }
}

/* Emergency mobile overflow clamp: 2026-06-02 */
@media (max-width: 480px) {
  .living-expense-distribution-calculator-container .expense-item {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 30px;
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .living-expense-distribution-calculator-container .expense-item .category-name,
  .living-expense-distribution-calculator-container .expense-item .category-amount {
    min-width: 0;
  }

  .living-expense-distribution-calculator-container .expense-item .remove-btn {
    width: 30px;
    min-width: 30px;
    max-width: 30px;
  }
}