/**
 * Cost of Living Comparison Tool - Styles
 * Modern, responsive design with fintech aesthetic
 */

/* ========================================
   CSS Custom Properties (Variables)
   ======================================== */
:root {
    /* Colors - Primary */
    --color-primary: #3B82F6;
    --color-primary-dark: #2563EB;
    --color-primary-light: #60A5FA;
    --color-primary-bg: #EFF6FF;

    /* Colors - Secondary */
    --color-secondary: #10B981;
    --color-secondary-dark: #059669;
    --color-secondary-light: #34D399;
    --color-secondary-bg: #ECFDF5;

    /* Colors - Semantic */
    --color-positive: #10B981;
    --color-positive-bg: #ECFDF5;
    --color-negative: #EF4444;
    --color-negative-bg: #FEF2F2;
    --color-neutral: #6B7280;
    --color-neutral-bg: #F9FAFB;

    /* Colors - Grayscale */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --max-width: 1200px;
    --sidebar-width: 320px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-gray-800);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    min-height: 100vh;
}

/* ========================================
   Layout
   ======================================== */
.app-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-4);
}

@media (min-width: 768px) {
    .app-container {
        padding: var(--spacing-8);
    }
}

/* Header */
.app-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.app-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-2);
}

@media (min-width: 768px) {
    .app-title {
        font-size: var(--font-size-4xl);
    }
}

.app-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* Main Content */
.main-content {
    display: grid;
    gap: var(--spacing-6);
}

@media (min-width: 1024px) {
    .main-content {
        grid-template-columns: 400px 1fr;
        gap: var(--spacing-8);
    }
}

/* ========================================
   Card Component
   ======================================== */
.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-100);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--color-gray-100);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
}

.card-body {
    padding: var(--spacing-6);
}

/* ========================================
   Form Controls
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    color: var(--color-gray-800);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form-input:hover,
.form-select:hover {
    border-color: var(--color-gray-300);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.form-input.error,
.form-select.error {
    border-color: var(--color-negative);
}

.form-input.error:focus,
.form-select.error:focus {
    box-shadow: 0 0 0 3px var(--color-negative-bg);
}

/* Salary Input */
.salary-input-wrapper {
    position: relative;
}

.salary-input-wrapper .currency-symbol {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
    font-weight: var(--font-weight-medium);
    pointer-events: none;
}

.salary-input-wrapper .form-input {
    padding-left: var(--spacing-8);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-mono);
}

/* Select Wrapper */
.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '';
    position: absolute;
    right: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--color-gray-400);
    pointer-events: none;
}

.form-select {
    padding-right: var(--spacing-10);
    cursor: pointer;
}

/* Input Error */
.input-error {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-xs);
    color: var(--color-negative);
}

/* Location Row */
.location-row {
    display: flex;
    gap: var(--spacing-3);
    align-items: flex-end;
}

.location-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

/* ========================================
   Toggle Switch
   ======================================== */
.toggle-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-4);
}

.toggle-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
}

.toggle-switch {
    position: relative;
    width: 48px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--color-gray-300);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    bottom: 3px;
    background: var(--color-white);
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    font-family: var(--font-family);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-gray-200);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-lg);
    background: var(--color-gray-100);
    color: var(--color-gray-600);
}

.btn-icon:hover:not(:disabled) {
    background: var(--color-gray-200);
    color: var(--color-gray-800);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

/* Swap Button Animation */
.btn-icon.rotating svg {
    animation: rotate 300ms ease;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(180deg); }
}

/* Copy Button States */
.btn.copied {
    background: var(--color-positive);
    color: var(--color-white);
}

/* ========================================
   Results Section
   ======================================== */
#results-section {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

#results-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Summary Box */
.summary-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-6);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-6);
    text-align: center;
}

.summary-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    margin-bottom: var(--spacing-2);
}

.summary-text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-relaxed);
}

@media (min-width: 768px) {
    .summary-text {
        font-size: var(--font-size-xl);
    }
}

.summary-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
    margin-top: var(--spacing-4);
}

.summary-actions .btn {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
}

.summary-actions .btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

@media (min-width: 640px) {
    .results-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.result-item {
    background: var(--color-gray-50);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    text-align: center;
}

.result-label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-1);
}

.result-value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
    font-family: var(--font-mono);
}

.result-value.positive {
    color: var(--color-positive);
}

.result-value.negative {
    color: var(--color-negative);
}

.result-value.neutral {
    color: var(--color-neutral);
}

/* Delta Values */
.delta-value {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
}

.delta-value.positive::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-positive);
    border-radius: 50%;
}

.delta-value.negative::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-negative);
    border-radius: 50%;
}

/* ========================================
   Charts
   ======================================== */
.chart-wrapper {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.chart-wrapper.chart-visible {
    opacity: 1;
    transform: translateY(0);
}

.chart-header {
    margin-bottom: var(--spacing-4);
}

.chart-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-1);
}

.chart-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Comparison Bars */
.chart-bars {
    position: relative;
    padding: var(--spacing-4) 0;
}

.bar-container {
    display: grid;
    grid-template-columns: 100px 1fr 60px;
    gap: var(--spacing-3);
    align-items: center;
    margin-bottom: var(--spacing-3);
}

.bar-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.bar-identifier {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-600);
}

.bar-location {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bar-wrapper {
    height: 32px;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.bar {
    height: 100%;
    width: var(--bar-width, 0%);
    background: var(--bar-color, var(--color-primary));
    border-radius: var(--radius-md);
    transition: width 600ms cubic-bezier(0.4, 0, 0.2, 1);
}

.bar-fill {
    height: 100%;
    background: inherit;
}

.bar-value {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-mono);
    color: var(--color-gray-700);
    text-align: right;
}

/* Baseline Indicator */
.chart-baseline {
    position: absolute;
    left: calc(100px + var(--spacing-3));
    right: calc(60px + var(--spacing-3));
    top: 0;
    bottom: 0;
    pointer-events: none;
}

.baseline-line {
    position: absolute;
    left: var(--baseline-position, 50%);
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-gray-300);
    opacity: 0.6;
}

.baseline-label {
    position: absolute;
    left: var(--baseline-position, 50%);
    bottom: -20px;
    transform: translateX(-50%);
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    white-space: nowrap;
}

/* Chart Legend */
.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-gray-100);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-diff {
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
}

.legend-diff.positive {
    background: var(--color-positive-bg);
    color: var(--color-positive);
}

.legend-diff.negative {
    background: var(--color-negative-bg);
    color: var(--color-negative);
}

.legend-diff.neutral {
    background: var(--color-neutral-bg);
    color: var(--color-neutral);
}

/* ========================================
   Category Charts
   ======================================== */
#category-section {
    display: none;
    margin-top: var(--spacing-6);
}

#category-section.visible {
    display: block;
}

.category-chart-wrapper {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.category-chart-wrapper.chart-visible {
    opacity: 1;
    transform: translateY(0);
}

.category-bars {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.category-bar-container {
    display: grid;
    grid-template-columns: 130px 1fr 60px;
    gap: var(--spacing-3);
    align-items: center;
}

@media (max-width: 640px) {
    .category-bar-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2);
    }
}

.category-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.category-icon {
    width: 20px;
    height: 20px;
    color: var(--color-gray-500);
}

.category-icon svg {
    width: 100%;
    height: 100%;
}

.category-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
}

.category-bars-dual {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.dual-bar-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.dual-bar-label {
    width: 16px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-400);
}

.dual-bar-track {
    flex: 1;
    height: 12px;
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.dual-bar-fill {
    height: 100%;
    border-radius: var(--radius-sm);
    transition: width 600ms cubic-bezier(0.4, 0, 0.2, 1);
}

.dual-bar-value {
    width: 40px;
    font-size: var(--font-size-xs);
    font-family: var(--font-mono);
    color: var(--color-gray-500);
    text-align: right;
}

.category-diff {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-align: right;
}

.category-diff.positive {
    color: var(--color-positive);
}

.category-diff.negative {
    color: var(--color-negative);
}

.category-diff.neutral {
    color: var(--color-neutral);
}

/* Category Impact Summary */
.category-impact {
    margin-top: var(--spacing-4);
    padding: var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.impact-title {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-1);
}

.impact-category {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
}

/* ========================================
   Delta Indicator
   ======================================== */
.delta-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
}

.delta-indicator.positive {
    background: var(--color-positive-bg);
}

.delta-indicator.negative {
    background: var(--color-negative-bg);
}

.delta-indicator.neutral {
    background: var(--color-neutral-bg);
}

.delta-arrow {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: var(--font-size-xl);
}

.delta-indicator.positive .delta-arrow {
    background: var(--color-positive);
    color: var(--color-white);
}

.delta-indicator.negative .delta-arrow {
    background: var(--color-negative);
    color: var(--color-white);
}

.delta-indicator.neutral .delta-arrow {
    background: var(--color-neutral);
    color: var(--color-white);
}

.delta-content {
    flex: 1;
}

.delta-amount {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-mono);
}

.delta-indicator.positive .delta-amount {
    color: var(--color-positive);
}

.delta-indicator.negative .delta-amount {
    color: var(--color-negative);
}

.delta-indicator.neutral .delta-amount {
    color: var(--color-neutral);
}

.delta-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ========================================
   States (Loading, Error, Empty)
   ======================================== */
.state-container {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-12) var(--spacing-6);
    text-align: center;
}

.state-container.visible {
    display: flex;
}

.state-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-4);
    color: var(--color-gray-300);
}

.state-icon svg {
    width: 100%;
    height: 100%;
}

.state-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.state-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    max-width: 300px;
}

/* Loading Spinner */
.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-4);
}

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

/* Error State */
#error-state .state-icon {
    color: var(--color-negative);
}

/* ========================================
   Disclaimer
   ======================================== */
.disclaimer {
    margin-top: var(--spacing-8);
    padding: var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    text-align: center;
}

.disclaimer-icon {
    display: inline-block;
    margin-right: var(--spacing-1);
}

/* ========================================
   Toast Notifications
   ======================================== */
.toast {
    position: fixed;
    bottom: var(--spacing-6);
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    background: var(--color-gray-800);
    color: var(--color-white);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    z-index: 1000;
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

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

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

.mb-0 {
    margin-bottom: 0;
}

.mt-4 {
    margin-top: var(--spacing-4);
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 640px) {
    .app-title {
        font-size: var(--font-size-2xl);
    }

    .app-subtitle {
        font-size: var(--font-size-base);
    }

    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bar-container {
        grid-template-columns: 80px 1fr 50px;
    }

    .summary-text {
        font-size: var(--font-size-base);
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    body {
        background: white;
    }

    .btn,
    .toggle-wrapper,
    .toast {
        display: none !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid var(--color-gray-300);
    }
}