/* ============================================
   OPTIONS MASTERY - CHAPTER 1 STYLES
   ============================================ */

/* ============ CSS VARIABLES ============ */
:root {
    /* Colors - Dark Theme */
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-card: #161e2e;
    --bg-hover: #1e293b;

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Accent Colors */
    --accent-primary: #6366f1;
    --accent-primary-hover: #818cf8;
    --accent-secondary: #8b5cf6;

    /* Semantic Colors */
    --color-profit: #22c55e;
    --color-profit-bg: rgba(34, 197, 94, 0.1);
    --color-loss: #ef4444;
    --color-loss-bg: rgba(239, 68, 68, 0.1);
    --color-neutral: #3b82f6;
    --color-warning: #f59e0b;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-profit: linear-gradient(135deg, #22c55e 0%, #10b981 100%);
    --gradient-loss: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-card: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);

    /* Borders */
    --border-color: rgba(148, 163, 184, 0.1);
    --border-color-hover: rgba(148, 163, 184, 0.2);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --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;
    --spacing-3xl: 4rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-hebrew: 'Heebo', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* ============ RESET & BASE ============ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

h1 { font-size: 3rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

strong {
    color: var(--text-primary);
    font-weight: 600;
}

em {
    color: var(--accent-primary);
    font-style: normal;
}

/* ============ PROGRESS BAR ============ */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--bg-tertiary);
    z-index: 1000;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    width: 12.5%;
    transition: width var(--transition-slow);
}

/* ============ NAVIGATION ============ */
.main-nav {
    position: fixed;
    top: 3px;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(10, 15, 26, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    z-index: 999;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.brand-text {
    font-weight: 700;
    font-size: 1.1rem;
}

.nav-chapter {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.chapter-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.nav-progress {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============ MAIN CONTENT ============ */
.content {
    padding-top: 67px;
}

/* ============ SECTIONS ============ */
.section {
    min-height: 100vh;
    padding: var(--spacing-3xl) var(--spacing-xl);
    display: none;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.section.active {
    display: block;
    opacity: 1;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-number {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-intro {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: var(--spacing-md) auto 0;
}

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(99, 102, 241, 0.4);
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.0625rem;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-group {
    display: flex;
    gap: var(--spacing-xs);
}

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

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

/* ============ HERO SECTION ============ */
.section-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3xl);
    padding: var(--spacing-3xl);
    background:
        radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        var(--bg-primary);
}

.section-hero.active {
    display: flex;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.hero-insight {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.insight-icon {
    font-size: 1.5rem;
}

.hero-insight p {
    font-size: 1rem;
    line-height: 1.7;
}

.hero-visual {
    position: relative;
    width: 400px;
    height: 400px;
}

.probability-orb {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orb-ring {
    position: absolute;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: pulse 3s ease-in-out infinite;
}

.orb-ring:nth-child(1) {
    width: 200px;
    height: 200px;
    animation-delay: 0s;
}

.orb-ring:nth-child(2) {
    width: 280px;
    height: 280px;
    animation-delay: 0.5s;
}

.orb-ring:nth-child(3) {
    width: 360px;
    height: 360px;
    animation-delay: 1s;
}

.orb-core {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: 0 0 60px rgba(99, 102, 241, 0.5);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.5;
    }
}

/* ============ GAME SECTION ============ */
.game-container {
    max-width: 900px;
    margin: 0 auto;
}

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

.game-prompt h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.game-choices {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
}

.game-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    width: 320px;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.game-card.selected {
    border-color: var(--accent-primary);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
}

.game-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.game-label {
    font-size: 1.25rem;
    font-weight: 700;
}

.game-tag {
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-weight: 500;
}

.game-tag.symmetric {
    background: rgba(59, 130, 246, 0.2);
    color: var(--color-neutral);
}

.game-tag.asymmetric {
    background: rgba(34, 197, 94, 0.2);
    color: var(--color-profit);
}

.game-card-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.outcome {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
}

.outcome-icon {
    font-size: 1.25rem;
}

.outcome-label {
    flex: 1;
    color: var(--text-secondary);
}

.outcome-value {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.125rem;
}

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

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

.game-card-footer {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.expected-value {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.vs-divider {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-muted);
}

/* Game Simulation */
.game-simulation {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
}

.sim-header h3 {
    margin-bottom: var(--spacing-xs);
}

.sim-header p {
    margin-bottom: var(--spacing-xl);
}

.sim-display {
    margin-bottom: var(--spacing-xl);
}

.sim-balance {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.balance-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.balance-value {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.balance-value.up {
    color: var(--color-profit);
}

.balance-value.down {
    color: var(--color-loss);
}

.sim-history {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    min-height: 40px;
}

.history-item {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    animation: popIn 0.3s ease;
}

.history-item.win {
    background: var(--color-profit-bg);
}

.history-item.loss {
    background: var(--color-loss-bg);
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.sim-controls {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.flip-icon {
    display: inline-block;
    transition: transform 0.6s ease;
}

.flipping .flip-icon {
    animation: coinFlip 0.6s ease;
}

@keyframes coinFlip {
    0% { transform: rotateY(0); }
    100% { transform: rotateY(720deg); }
}

.sim-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
}

/* Game Revelation */
.game-revelation {
    text-align: center;
    animation: fadeInUp 0.5s ease;
}

.revelation-card {
    background: var(--bg-card);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

.revelation-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.revelation-card h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--accent-primary);
}

.revelation-text {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.revelation-bridge {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.bridge-arrow {
    font-size: 1.5rem;
    color: var(--accent-primary);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

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

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

/* ============ SIMULATION SECTION ============ */
.simulation-container {
    max-width: 1000px;
    margin: 0 auto;
}

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

.stock-symbol {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stock-name {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.price-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

.price-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
}

.chart-container {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    height: 400px;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.chart-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 15, 26, 0.8);
    border-radius: var(--radius-lg);
    color: var(--text-muted);
    font-size: 1.125rem;
}

.chart-overlay.hidden {
    display: none;
}

.simulation-controls {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

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

.control-group label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 120px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

.slider-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
    min-width: 40px;
}

.sim-icon {
    font-size: 0.875rem;
}

.simulation-insight {
    text-align: center;
    animation: fadeInUp 0.5s ease;
}

.insight-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.insight-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    justify-content: center;
}

.insight-title {
    font-weight: 600;
}

.insight-body p {
    margin-bottom: var(--spacing-md);
}

/* ============ INSURANCE SECTION ============ */
.insurance-container {
    display: flex;
    gap: var(--spacing-xl);
    align-items: stretch;
    max-width: 1100px;
    margin: 0 auto var(--spacing-2xl);
}

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

.scenario-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

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

.scenario-details {
    margin-bottom: var(--spacing-xl);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-label {
    color: var(--text-secondary);
}

.detail-value {
    font-family: var(--font-mono);
    font-weight: 600;
}

.scenario-outcome {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

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

.outcome-case:first-child {
    border-bottom: 1px solid var(--border-color);
}

.case-result.positive {
    color: var(--color-profit);
    font-weight: 600;
}

.case-result.negative {
    color: var(--color-loss);
    font-weight: 600;
}

.scenario-question {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.scenario-question p {
    margin-bottom: var(--spacing-sm);
}

.scenario-question .answer {
    color: var(--text-primary);
    font-style: italic;
}

.scenario-question .highlight {
    color: var(--accent-primary);
    font-weight: 600;
}

.transform-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-md);
}

.arrow-line {
    width: 2px;
    height: 40px;
    background: var(--accent-primary);
    opacity: 0.3;
}

.arrow-label {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
    font-size: 0.75rem;
    color: var(--accent-primary);
    padding: var(--spacing-md) 0;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.revelation-box {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.revelation-box h3 {
    margin-bottom: var(--spacing-lg);
}

.revelation-box p {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.revelation-box .key-point {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* ============ PAYOFF SECTION ============ */
.payoff-container {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto var(--spacing-2xl);
}

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

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

.control-panel h4 {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.option-type-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.type-icon {
    font-size: 1.5rem;
}

.type-label {
    font-weight: 700;
    color: var(--text-primary);
}

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

.position-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.pos-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-btn span:first-child {
    font-weight: 600;
    color: var(--text-primary);
}

.pos-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
}

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

.slider-control {
    margin-bottom: var(--spacing-lg);
}

.slider-control label {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.slider-val {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-weight: 600;
}

.slider-control input[type="range"] {
    width: 100%;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.current-price-display {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.current-price-display label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.current-price-display input[type="range"] {
    width: 100%;
    margin-bottom: var(--spacing-sm);
}

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

.price-label {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

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

.result-header {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.result-value {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-fast);
}

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

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

.result-breakdown {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
}

.breakdown-row span:first-child {
    color: var(--text-secondary);
}

.breakdown-row span:last-child {
    font-family: var(--font-mono);
}

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

.payoff-chart canvas {
    width: 100% !important;
    height: 400px !important;
}

.chart-annotations {
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.annotation {
    display: flex;
    flex-direction: column;
    background: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
}

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

.annotation-value {
    font-family: var(--font-mono);
    font-weight: 600;
}

.payoff-discoveries {
    max-width: 1200px;
    margin: 0 auto var(--spacing-2xl);
}

.payoff-discoveries h4 {
    margin-bottom: var(--spacing-lg);
}

.discovery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.discovery-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.discovery-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--accent-primary);
}

.discovery-item label {
    cursor: pointer;
    color: var(--text-secondary);
}

.btn-continue {
    display: block;
    margin: 0 auto;
}

/* ============ SIDES SECTION ============ */
.sides-container {
    display: flex;
    gap: var(--spacing-lg);
    align-items: stretch;
    max-width: 1100px;
    margin: 0 auto var(--spacing-2xl);
}

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

.buyer-side {
    border-color: var(--color-profit);
}

.seller-side {
    border-color: var(--color-loss);
}

.side-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

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

.side-profile {
    margin-bottom: var(--spacing-xl);
}

.profile-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.profile-label {
    color: var(--text-secondary);
}

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

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

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

.side-metaphor {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.side-metaphor p {
    font-size: 0.9375rem;
}

.mini-chart {
    width: 100% !important;
    height: 120px !important;
}

.sides-divider {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.divider-line {
    width: 2px;
    height: 60px;
    background: var(--border-color);
}

.divider-icon {
    font-size: 2rem;
    padding: var(--spacing-md) 0;
}

.divider-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    writing-mode: vertical-rl;
    padding: var(--spacing-md) 0;
}

.sides-insight {
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.insight-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
}

.insight-box h4 {
    margin-bottom: var(--spacing-lg);
}

.insight-box p {
    margin-bottom: var(--spacing-md);
    font-size: 1.0625rem;
}

.insight-box .key-insight {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* ============ VALUE SECTION ============ */
.value-container {
    max-width: 900px;
    margin: 0 auto;
}

.value-visual {
    margin-bottom: var(--spacing-2xl);
}

.option-price-bar {
    display: flex;
    height: 80px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.bar-intrinsic {
    background: var(--gradient-profit);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: width var(--transition-base);
}

.bar-extrinsic {
    background: var(--gradient-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: width var(--transition-base);
}

.bar-label {
    font-size: 0.75rem;
    opacity: 0.8;
}

.bar-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
}

.total-price {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.total-price span {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--text-primary);
}

.value-controls {
    display: flex;
    gap: var(--spacing-2xl);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.value-scenario {
    display: flex;
    gap: var(--spacing-2xl);
}

.scenario-stock, .scenario-strike {
    text-align: center;
}

.scenario-stock label, .scenario-strike label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

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

.stock-input button {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.stock-input button:hover {
    background: var(--bg-hover);
}

.stock-input span {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    min-width: 60px;
}

.fixed-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
}

.time-slider {
    flex: 1;
    max-width: 300px;
}

.time-slider label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.time-slider input[type="range"] {
    width: 100%;
}

.time-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.time-labels span:nth-child(2) {
    font-weight: 600;
    color: var(--accent-primary);
}

.value-explanation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

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

.intrinsic-card {
    border-color: var(--color-profit);
}

.extrinsic-card {
    border-color: var(--accent-primary);
}

.explanation-card h4 {
    margin-bottom: var(--spacing-md);
}

.explanation-card .definition {
    margin-bottom: var(--spacing-md);
}

.explanation-card .formula {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

.explanation-card .example {
    font-size: 0.9375rem;
}

.value-discovery {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.discovery-prompt h4 {
    margin-bottom: var(--spacing-sm);
}

.discovery-answer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    animation: fadeInUp 0.3s ease;
}

.discovery-answer p {
    margin-bottom: var(--spacing-sm);
}

/* ============ SUMMARY SECTION ============ */
.summary-container {
    max-width: 900px;
    margin: 0 auto;
}

.key-insights {
    margin-bottom: var(--spacing-2xl);
}

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

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

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

.insight-number {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    flex-shrink: 0;
}

.insight-content h4 {
    margin-bottom: var(--spacing-sm);
}

.chapter-quiz {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

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

.quiz-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.quiz-question {
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
}

.question-text {
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

.option-btn {
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.option-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.05);
}

.option-btn.selected {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

.option-btn.correct {
    border-color: var(--color-profit);
    background: var(--color-profit-bg);
    color: var(--color-profit);
}

.option-btn.incorrect {
    border-color: var(--color-loss);
    background: var(--color-loss-bg);
    color: var(--color-loss);
}

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

.next-preview {
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xl);
}

.next-label {
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.next-preview h3 {
    margin: var(--spacing-sm) 0;
}

/* ============ HELP FAB ============ */
.help-fab {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-fast);
    z-index: 100;
}

.help-fab:hover {
    transform: scale(1.1);
}

/* ============ GLOSSARY SIDEBAR ============ */
.glossary-sidebar {
    position: fixed;
    top: 67px;
    right: -400px;
    width: 400px;
    height: calc(100vh - 67px);
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    overflow-y: auto;
    transition: right var(--transition-base);
    z-index: 998;
}

.glossary-sidebar.open {
    right: 0;
}

.glossary-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.glossary-header button {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.glossary-item {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.glossary-item dt {
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
}

.glossary-item dd {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ============ MODAL ============ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.open {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    text-align: center;
    max-width: 500px;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.modal-content h2 {
    margin-bottom: var(--spacing-md);
}

.modal-content > p {
    margin-bottom: var(--spacing-xl);
}

.completion-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

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

.comp-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.comp-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* ============ UTILITY CLASSES ============ */
.hidden {
    display: none !important;
}

.positive {
    color: var(--color-profit) !important;
}

.negative {
    color: var(--color-loss) !important;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .payoff-container {
        grid-template-columns: 1fr;
    }

    .payoff-chart {
        height: 350px;
    }

    .insurance-container {
        flex-direction: column;
    }

    .transform-arrow {
        flex-direction: row;
        padding: var(--spacing-md) 0;
    }

    .arrow-label {
        writing-mode: horizontal-tb;
        transform: none;
    }

    .arrow-line {
        width: 60px;
        height: 2px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-visual {
        width: 250px;
        height: 250px;
    }

    .orb-ring:nth-child(1) { width: 120px; height: 120px; }
    .orb-ring:nth-child(2) { width: 170px; height: 170px; }
    .orb-ring:nth-child(3) { width: 220px; height: 220px; }
    .orb-core { width: 60px; height: 60px; }

    .game-choices {
        flex-direction: column;
    }

    .vs-divider {
        transform: rotate(90deg);
    }

    .sides-container {
        flex-direction: column;
    }

    .sides-divider {
        flex-direction: row;
    }

    .divider-line {
        width: 60px;
        height: 2px;
    }

    .divider-text {
        writing-mode: horizontal-tb;
    }

    .value-explanation {
        grid-template-columns: 1fr;
    }

    .value-controls {
        flex-direction: column;
    }

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

/* ============ LANGUAGE TOGGLE ============ */
.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.lang-toggle {
    display: flex;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    padding: 2px;
    border: 1px solid var(--border-color);
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    color: var(--text-primary);
}

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

/* ============ RTL SUPPORT (Hebrew) ============ */
html[dir="rtl"] {
    direction: rtl;
}

body.rtl {
    font-family: var(--font-hebrew);
}

body.rtl .btn-arrow {
    transform: scaleX(-1);
}

body.rtl .btn:hover .btn-arrow {
    transform: scaleX(-1) translateX(-4px);
}

body.rtl .bridge-arrow {
    transform: scaleX(-1);
}

body.rtl .revelation-bridge .bridge-arrow {
    transform: none;
}

body.rtl .game-choices {
    flex-direction: row-reverse;
}

body.rtl .insurance-container {
    flex-direction: row-reverse;
}

body.rtl .sides-container {
    flex-direction: row-reverse;
}

body.rtl .payoff-container {
    direction: ltr;
}

body.rtl .chart-container {
    direction: ltr;
}

body.rtl .sim-history {
    direction: ltr;
}

body.rtl .option-price-bar {
    direction: ltr;
}

body.rtl .slider-labels {
    flex-direction: row-reverse;
}

body.rtl .nav-chapter {
    text-align: center;
}

body.rtl .hero-content {
    text-align: right;
}

body.rtl .section-header {
    text-align: center;
}

body.rtl .insight-item {
    flex-direction: row-reverse;
    text-align: right;
}

body.rtl .insight-content {
    text-align: right;
}

body.rtl .glossary-item {
    text-align: right;
}

body.rtl .detail-row,
body.rtl .outcome-case,
body.rtl .profile-item,
body.rtl .breakdown-row {
    flex-direction: row-reverse;
}

body.rtl .discovery-item {
    flex-direction: row-reverse;
}

body.rtl .discovery-item label {
    text-align: right;
}

body.rtl .scenario-question {
    text-align: right;
}

body.rtl .revelation-card {
    text-align: right;
}

body.rtl .insight-box {
    text-align: right;
}

body.rtl .side-metaphor {
    text-align: right;
}

body.rtl .explanation-card {
    text-align: right;
}

body.rtl .value-discovery {
    text-align: right;
}

body.rtl .next-preview {
    text-align: right;
}

@media (max-width: 768px) {
    body.rtl .game-choices {
        flex-direction: column;
    }

    body.rtl .insurance-container {
        flex-direction: column;
    }

    body.rtl .sides-container {
        flex-direction: column;
    }

    body.rtl .hero-content {
        text-align: center;
    }
}

/* ============ VIEWPORT FIX ============ */
.section {
    min-height: calc(100vh - 67px);
    padding: var(--spacing-2xl) var(--spacing-xl);
    display: none;
    opacity: 0;
    transition: opacity var(--transition-slow);
    overflow-y: auto;
}

.section.active {
    display: flex;
    flex-direction: column;
    opacity: 1;
}

.section-hero.active {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

/* Ensure sections are scrollable and start at a reasonable position */
.section-game,
.section-simulation,
.section-insurance,
.section-payoff,
.section-sides,
.section-value,
.section-summary {
    justify-content: flex-start;
    padding-top: var(--spacing-2xl);
}

/* Make section headers more compact */
.section-header {
    margin-bottom: var(--spacing-xl);
    padding-top: 0;
}

/* ============================================
   CHAPTER 2: THE INCOME ENGINE STYLES
   ============================================ */

/* Income Orb Animation */
.income-orb {
    width: 300px;
    height: 300px;
    position: relative;
}

.income-orb .money-ring {
    border: 2px solid var(--color-profit);
    animation-duration: 4s;
}

.income-orb .money-core {
    width: 80px;
    height: 80px;
    background: var(--gradient-profit);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 2s ease-in-out infinite;
}

/* Landlord Scenario */
.landlord-scenario {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.scenario-visual {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.house-icon {
    font-size: 5rem;
}

.house-value {
    display: flex;
    flex-direction: column;
}

.house-value .value-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.house-value .value-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-profit);
}

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

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

.offer-text {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

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

.offer-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px dashed var(--border-color);
}

.offer-item:last-child {
    border-bottom: none;
}

.decision-prompt {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.decision-prompt h3 {
    margin-bottom: var(--spacing-lg);
}

.decision-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-decision {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border-radius: var(--radius-lg);
}

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

.btn-decision.selected {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.btn-decision .decision-icon {
    font-size: 1.25rem;
}

/* Covered Call & CSP Section Styles */
.strategy-container {
    max-width: 1000px;
    margin: 0 auto;
}

.strategy-setup {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

.setup-card h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.setup-card.action-card {
    border-color: var(--accent-primary);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-card) 100%);
}

.setup-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.setup-icon {
    font-size: 1.5rem;
}

.setup-value {
    display: flex;
    flex-direction: column;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.setup-value .value-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.setup-value .value-amount {
    font-size: 1.25rem;
    font-weight: 600;
}

.setup-value.positive .value-amount {
    color: var(--color-profit);
}

/* Outcomes Grid */
.outcomes-grid {
    margin-bottom: var(--spacing-xl);
}

.outcomes-grid h4 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

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

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

.outcome-card.scenario-down {
    border-left: 3px solid var(--color-loss);
}

.outcome-card.scenario-flat {
    border-left: 3px solid var(--color-neutral);
}

.outcome-card.scenario-up {
    border-left: 3px solid var(--color-profit);
}

.outcome-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.outcome-icon {
    font-size: 1.5rem;
}

.outcome-title {
    font-weight: 600;
    flex-grow: 1;
}

.outcome-price {
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

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

.outcome-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
}

.outcome-row.total {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    font-weight: 600;
}

.outcome-note {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-muted);
    font-style: italic;
}

/* CSP Specific */
.csp-scenario {
    margin-bottom: var(--spacing-xl);
}

.scenario-thought {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.thought-bubble {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-card);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    font-style: italic;
}

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

.traditional-vs-smart {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    align-items: stretch;
    margin-bottom: var(--spacing-xl);
}

.approach-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.approach-card.traditional {
    opacity: 0.7;
}

.approach-card.smart {
    border-color: var(--color-profit);
    background: linear-gradient(180deg, rgba(34, 197, 94, 0.1) 0%, var(--bg-card) 100%);
}

.approach-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.approach-icon {
    font-size: 1.5rem;
}

.approach-card p {
    flex-grow: 1;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.approach-result {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.approach-result.positive {
    background: var(--color-profit-bg);
}

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

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

.csp-outcomes h4 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.outcome-result {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.outcome-result.positive {
    background: var(--color-profit-bg);
    color: var(--color-profit);
}

.cost-breakdown {
    margin-top: var(--spacing-md);
}

.cost-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
}

.cost-row.total {
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    font-weight: 600;
}

.cost-row .highlight {
    color: var(--color-profit);
    font-weight: 700;
}

/* Strategy Insight Box */
.strategy-insight {
    margin: var(--spacing-xl) 0;
}

.strategy-insight .insight-box {
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-card) 100%);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.strategy-insight .insight-box h4 {
    margin-bottom: var(--spacing-md);
}

.strategy-insight .insight-box p {
    color: var(--text-secondary);
}

/* Calculator Section */
.calculator-container {
    max-width: 900px;
    margin: 0 auto;
}

.calc-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

.calc-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.input-with-unit {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.input-with-unit .unit {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-weight: 500;
}

.input-with-unit input {
    flex-grow: 1;
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 1.125rem;
    font-family: var(--font-mono);
}

.input-with-unit input:focus {
    outline: none;
}

.strategy-select {
    display: flex;
    gap: var(--spacing-sm);
}

.strat-btn {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.strat-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

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

.calc-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

.calc-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.result-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.result-card.annual {
    border-color: var(--color-profit);
    background: linear-gradient(180deg, rgba(34, 197, 94, 0.1) 0%, var(--bg-card) 100%);
}

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

.result-content {
    display: flex;
    flex-direction: column;
}

.result-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-profit);
}

.income-chart-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.income-chart-container canvas {
    width: 100%;
    height: 200px;
}

.calc-warning {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--color-warning);
    border-radius: var(--radius-lg);
}

.warning-icon {
    font-size: 1.5rem;
}

.calc-warning p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Risks Section */
.risks-container {
    max-width: 900px;
    margin: 0 auto;
}

.risk-section {
    margin-bottom: var(--spacing-2xl);
}

.risk-section h3 {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.risk-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

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

.risk-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.risk-icon {
    font-size: 1.5rem;
}

.risk-title {
    font-weight: 600;
    color: var(--color-warning);
}

.risk-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.risk-example {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.mitigation-section h3 {
    margin-bottom: var(--spacing-lg);
}

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

.mitigation-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.mitigation-icon {
    color: var(--color-profit);
    font-size: 1.25rem;
}

/* Strategy Builder */
.builder-container {
    max-width: 1000px;
    margin: 0 auto;
}

.scenario-selector {
    margin-bottom: var(--spacing-xl);
}

.scenario-selector h4 {
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.scenario-tabs {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.scenario-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    font-weight: 500;
}

.scenario-tab:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

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

.tab-icon {
    font-size: 1.25rem;
}

.builder-scenario {
    display: none;
}

.builder-scenario.active {
    display: block;
}

.stock-info-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.stock-info-card .stock-header {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stock-info-card .stock-symbol {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stock-info-card .stock-name {
    color: var(--text-secondary);
}

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

.stock-details .detail {
    display: flex;
    flex-direction: column;
}

.stock-details .detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stock-details .detail-value {
    font-size: 1.25rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.trade-builder {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.trade-builder h4 {
    margin-bottom: var(--spacing-lg);
}

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

.builder-controls .control-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.strike-options,
.expiration-options {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.strike-btn,
.exp-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.strike-btn:hover,
.exp-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.strike-btn.active,
.exp-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.premium-preview {
    font-size: 0.75rem;
    color: var(--color-profit);
}

.strike-btn.active .premium-preview {
    color: rgba(255, 255, 255, 0.8);
}

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

.preview-placeholder {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.trade-summary h4 {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

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

.summary-item {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.summary-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.summary-value {
    font-weight: 600;
    font-family: var(--font-mono);
}

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

.summary-value.highlight {
    color: var(--accent-primary);
}

/* Responsive adjustments for Chapter 2 */
@media (max-width: 768px) {
    .strategy-setup {
        grid-template-columns: 1fr;
    }

    .traditional-vs-smart {
        grid-template-columns: 1fr;
    }

    .traditional-vs-smart .vs-divider {
        padding: var(--spacing-md) 0;
    }

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

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

    .scenario-tabs {
        flex-direction: column;
    }

    .stock-details {
        grid-template-columns: 1fr;
    }

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

    .strike-options,
    .expiration-options {
        flex-direction: column;
    }

    .strike-btn,
    .exp-btn {
        width: 100%;
    }
}

/* Chapter 2 section types */
.section-covered-call,
.section-csp,
.section-calculator,
.section-risks,
.section-builder {
    justify-content: flex-start;
    padding-top: var(--spacing-2xl);
}