/* ===================================
   HomeHelper.ai - Real Estate Analyzer
   Premium Dark Theme Stylesheet
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #16161f;
    --bg-card-hover: #1e1e2a;

    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b80;

    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);

    --success: #22c55e;
    --warning: #eab308;
    --danger: #ef4444;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-subtle: rgba(255, 255, 255, 0.04);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

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

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-ai {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

/* Hero */
.hero {
    padding: 8rem var(--spacing-xl) 3rem;
    text-align: center;
    background: radial-gradient(ellipse at top, rgba(99, 102, 241, 0.1) 0%, transparent 60%);
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* App Container */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* Wizard Container */
.wizard-container {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

/* Progress Steps */
.wizard-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    transition: var(--transition-fast);
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: var(--transition-normal);
}

.progress-step.active .step-number,
.progress-step.completed .step-number {
    background: var(--accent-gradient);
    border-color: transparent;
}

.step-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.progress-step.active .step-label {
    color: var(--text-primary);
}

.progress-line {
    width: 40px;
    height: 2px;
    background: var(--border-color);
    margin: 0 var(--spacing-xs);
}

/* Wizard Steps */
.wizard-step {
    display: none;
    animation: fadeIn 0.3s ease;
}

.wizard-step.active {
    display: block;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.step-header h2 {
    margin-bottom: var(--spacing-sm);
}

.step-header p {
    color: var(--text-secondary);
}

/* Form Styles */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-group input,
.form-group select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* Info Icon Tooltip */
.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    background: var(--bg-tertiary);
    border-radius: 50%;
    color: var(--text-muted);
    cursor: help;
    position: relative;
    transition: var(--transition-fast);
}

.info-icon:hover {
    background: var(--accent-primary);
    color: white;
}

.info-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    width: 280px;
    font-size: 0.8rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-secondary);
    z-index: 100;
    box-shadow: var(--shadow-lg);
    white-space: normal;
}

/* Calculated Section */
.calculated-section {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
}

.calculated-section h3 {
    font-size: 1rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
}

.calculated-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

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

.calc-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.calc-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-secondary);
}

/* Bonus Section */
.bonus-section {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.bonus-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.bonus-fields {
    transition: var(--transition-normal);
}

/* Toggle Switch */
.toggle-container {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--bg-tertiary);
    border-radius: 24px;
    transition: var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-fast);
}

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

.toggle-container input:checked+.toggle-slider::before {
    transform: translateX(20px);
}

/* Strategy Selector */
.strategy-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

.strategy-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.strategy-card.active {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.strategy-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.strategy-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.strategy-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Strategy Fields */
.strategy-fields {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.strategy-fields.hidden {
    display: none;
}

.strategy-fields h4 {
    margin-bottom: var(--spacing-lg);
    color: var(--accent-secondary);
}

/* Benchmark Section */
.benchmark-section {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-lg);
}

.benchmark-section h4 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Step Actions */
.step-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-subtle);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(99, 102, 241, 0.3);
}

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

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

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--bg-tertiary);
}

.btn-analyze {
    font-size: 1.1rem;
    padding: var(--spacing-lg) var(--spacing-2xl);
}

/* Dashboard */
.dashboard-container {
    margin-top: var(--spacing-2xl);
}

.dashboard-container.hidden {
    display: none;
}

/* Dashboard Hero */
.dashboard-hero {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.hero-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.hero-card h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Capital Card */
.capital-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.capital-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.capital-item.total {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.item-label {
    color: var(--text-muted);
}

.item-value {
    font-weight: 600;
}

.capital-item.total .item-label,
.capital-item.total .item-value {
    color: var(--accent-secondary);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Metrics Card */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.metric-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    position: relative;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.metric-indicator {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 0.8rem;
}

.indicator-green {
    color: var(--success);
}

.indicator-yellow {
    color: var(--warning);
}

.indicator-red {
    color: var(--danger);
}

/* Verdict Card */
.verdict-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.verdict-main {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.25rem;
    font-weight: 600;
}

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

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

.comparison-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.comparison-row.highlight {
    color: var(--success);
    font-weight: 600;
}

.verdict-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-subtle);
}

/* Charts Section */
.charts-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.chart-card h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.chart-card canvas {
    max-height: 300px;
}

/* Tables Section */
.tables-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.table-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    overflow: hidden;
}

.table-card h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}

th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    font-size: 0.95rem;
}

tr:hover {
    background: var(--bg-secondary);
}

/* Sensitivity Section */
.sensitivity-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.sensitivity-section h3 {
    margin-bottom: var(--spacing-sm);
}

.sensitivity-intro {
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
}

.sensitivity-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.sensitivity-item label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sensitivity-item label span {
    color: var(--accent-primary);
    font-weight: 600;
}

.sensitivity-item input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    background: var(--bg-tertiary);
    border-radius: 3px;
    cursor: pointer;
}

.sensitivity-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-gradient);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-glow);
}

.sensitivity-range {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

.sensitivity-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

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

.sens-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.sens-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-secondary);
}

/* Dashboard Actions */
.dashboard-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* How It Works Section */
.how-it-works-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
    margin-top: var(--spacing-2xl);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.section-container h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.how-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.how-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: var(--transition-normal);
}

.how-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.how-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.how-card h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.how-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Glossary Section */
.glossary-section {
    padding: var(--spacing-2xl) 0;
}

.glossary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.glossary-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.glossary-item h4 {
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

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

.formula {
    display: block;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
}

/* Tax Guide */
.tax-guide {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.tax-guide h3 {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.tax-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.tax-item h4 {
    color: var(--accent-secondary);
    margin-bottom: var(--spacing-md);
}

.tax-item ul {
    list-style: none;
}

.tax-item li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.tax-item li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    text-align: center;
}

.footer-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.disclaimer {
    margin-top: var(--spacing-sm);
    font-size: 0.8rem !important;
    color: var(--warning) !important;
}

/* Responsive */
@media (max-width: 1024px) {
    .dashboard-hero {
        grid-template-columns: 1fr;
    }

    .charts-section {
        grid-template-columns: 1fr;
    }

    .strategy-selector {
        grid-template-columns: 1fr;
    }

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

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

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .nav {
        display: none;
    }

    .wizard-progress {
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: var(--spacing-md);
    }

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

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

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

    .sensitivity-results {
        grid-template-columns: 1fr;
    }

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

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

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

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

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

.text-success {
    color: var(--success);
}

.text-warning {
    color: var(--warning);
}

.text-danger {
    color: var(--danger);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal:not(.hidden) .modal-content {
    transform: translateY(0);
}

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

.modal-header h3 {
    margin: 0;
    font-size: 1.2rem;
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.close-modal:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
}

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

.project-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-fast);
}

.project-item:hover {
    border-color: var(--accent-primary);
}

.project-info {
    cursor: pointer;
    flex: 1;
}

.project-name {
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
}

.project-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.delete-project {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: var(--spacing-sm);
    opacity: 0.7;
    transition: opacity 0.2s;
}

.delete-project:hover {
    opacity: 1;
}

.empty-state {
    text-align: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
}

.chat-input-area input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.btn-send {
    background: var(--accent-gradient);
    color: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.btn-send:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

/* Typing Indicator */
.typing {
    display: flex;
    gap: 4px;
    padding: 12px 16px !important;
}

.typing span {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes bounce {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

/* Scrollbar for chat */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

/* Chat Interface */
.chat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 600px;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.chat-header {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.chat-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: var(--bg-primary);
    /* Slight contrast */
}

.message {
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    max-width: 80%;
    font-size: 0.95rem;
    line-height: 1.5;
    animation: fadeIn 0.3s ease;
}

.message.user {
    align-self: flex-end;
    background: var(--accent-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.model {
    align-self: flex-start;
    background: var(--bg-card);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-subtle);
}

.chat-input-area {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    background: var(--bg-card);
    align-items: center;
}

.chat-input-area input {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-round);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition-fast);
    font-size: 1rem;
}

/* ================================
   SCENARIO COMPARISON GRID
   ================================ */

.ai-chat-section {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    animation: fadeIn 0.5s ease;
    clear: both;
    width: 100%;
    position: relative;
}

.scenario-comparison-section {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.scenario-comparison-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.scenario-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.scenario-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.scenario-card.active {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.scenario-card.best::before,
.scenario-card.suggested::before {
    content: '⭐ MIGLIORE';
    position: absolute;
    top: 12px;
    right: -28px;
    background: linear-gradient(135deg, #eab308, #f59e0b);
    color: #000;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 4px 32px;
    transform: rotate(45deg);
}

.scenario-card.suggested {
    border-color: rgba(234, 179, 8, 0.5);
    background: rgba(234, 179, 8, 0.05);
}

.scenario-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-subtle);
}

.scenario-header h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.scenario-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

.scenario-metrics .metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.scenario-metrics .metric-label {
    color: var(--text-muted);
}

.scenario-metrics .metric-value {
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-view-details {
    width: 100%;
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-view-details:hover {
    background: var(--accent-primary);
    color: white;
}

/* Responsive Scenario Grid */
@media (max-width: 1200px) {
    .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .scenario-grid {
        grid-template-columns: 1fr;
    }

    .scenario-card.best::before,
    .scenario-card.suggested::before {
        font-size: 0.55rem;
        right: -32px;
    }
}