/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Calming color palette */
    --primary-blue: #2C5F8D;
    --soft-teal: #4A9B9F;
    --calm-green: #6FB98F;
    --warm-gold: #E8B86D;
    --soft-gray: #F5F7FA;
    --medium-gray: #E1E8ED;
    --dark-gray: #2D3748;
    --white: #FFFFFF;
    --success-green: #48BB78;
    --alert-red: #F56565;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    line-height: 1.6;
    background-color: var(--soft-gray);
    overflow-x: hidden;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--soft-teal) 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle p {
    margin-bottom: var(--spacing-sm);
}

.hero-emphasis {
    font-size: clamp(1.1rem, 2.2vw, 1.4rem);
    font-weight: 600;
    margin-top: var(--spacing-md);
    opacity: 0.95;
}

/* Goal Section */
.goal-section {
    padding: var(--spacing-2xl) 0;
    margin-top: calc(var(--spacing-2xl) * -1);
    position: relative;
    z-index: 2;
}

.goal-card {
    background: var(--white);
    border-radius: 20px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.goal-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--calm-green), var(--soft-teal));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 2rem;
    color: var(--white);
}

.goal-card h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.goal-card p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--dark-gray);
}

/* Key Rule Banner */
.key-rule {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.rule-banner {
    background: linear-gradient(135deg, var(--warm-gold), #F4A460);
    border-radius: 16px;
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.rule-banner i {
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.rule-banner h3 {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--white);
    font-weight: 700;
    line-height: 1.4;
}

.rule-banner h3 span {
    font-size: clamp(1rem, 2vw, 1.4rem);
    font-weight: 600;
    display: block;
    margin-top: var(--spacing-xs);
    opacity: 0.95;
}

/* Money Flow Section */
.money-flow {
    padding: var(--spacing-3xl) 0;
    background: var(--soft-gray);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    text-align: center;
    font-size: 1.15rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xl);
    opacity: 0.8;
}

.flow-lanes {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.lane {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out both;
}

.lane:nth-child(1) { animation-delay: 0.1s; }
.lane:nth-child(2) { animation-delay: 0.2s; }
.lane:nth-child(3) { animation-delay: 0.3s; }
.lane:nth-child(4) { animation-delay: 0.4s; }
.lane:nth-child(5) { animation-delay: 0.5s; }

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

.lane-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    user-select: none;
    background: linear-gradient(to right, transparent, rgba(74, 155, 159, 0.05));
}

.lane-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--soft-teal));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.lane-info {
    flex: 1;
}

.lane-info h3 {
    font-size: 1.4rem;
    color: var(--primary-blue);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.lane-badge {
    font-size: 0.85rem;
    background: var(--calm-green);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
}

.lane-info p {
    color: var(--dark-gray);
    opacity: 0.7;
    font-size: 0.95rem;
}

.lane-toggle {
    color: var(--soft-teal);
    font-size: 1.2rem;
    transition: var(--transition);
}

.lane.active .lane-toggle {
    transform: rotate(180deg);
}

.lane-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.lane.active .lane-content {
    max-height: 1000px;
}

.lane-content > * {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.balance-display {
    background: linear-gradient(135deg, rgba(44, 95, 141, 0.1), rgba(74, 155, 159, 0.1));
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.balance-label {
    font-size: 0.9rem;
    color: var(--dark-gray);
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.balance-amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: var(--font-display);
}

.progress-bar {
    height: 12px;
    background: var(--medium-gray);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--calm-green), var(--soft-teal));
    border-radius: 10px;
    transition: width 0.6s ease-out;
}

.lane-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
}

.lane-highlight {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(72, 187, 120, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    color: var(--success-green);
    font-weight: 600;
}

.lane-highlight i {
    font-size: 1.2rem;
}

.fixed-obligations {
    background: var(--soft-gray);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.obligation-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--medium-gray);
}

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

.obligation-name {
    font-weight: 600;
    color: var(--dark-gray);
}

.obligation-amount {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.allowance-calculator {
    background: linear-gradient(135deg, rgba(111, 185, 143, 0.15), rgba(74, 155, 159, 0.15));
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.calc-label {
    font-size: 0.9rem;
    color: var(--dark-gray);
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.calc-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--soft-teal);
}

/* Amex Rules Section */
.amex-rules {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.amex-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.info-card {
    background: var(--soft-gray);
    border-radius: 16px;
    padding: var(--spacing-xl);
}

.info-card h3 {
    font-size: 1.4rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
}

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

.category-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.category-item:hover {
    border-color: var(--soft-teal);
    transform: translateX(4px);
}

.category-item.active {
    background: rgba(111, 185, 143, 0.1);
    border-color: var(--calm-green);
}

.category-item i:first-child {
    color: var(--soft-teal);
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
}

.category-item span {
    flex: 1;
    font-weight: 500;
}

.category-check {
    color: var(--calm-green);
    opacity: 0;
    transition: var(--transition);
}

.category-item.active .category-check {
    opacity: 1;
}

.amex-rules-box {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.rule-item {
    background: var(--soft-gray);
    padding: var(--spacing-lg);
    border-radius: 12px;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    transition: var(--transition);
}

.rule-item:hover {
    background: rgba(74, 155, 159, 0.1);
    transform: translateX(4px);
}

.rule-item.winning {
    background: linear-gradient(135deg, rgba(111, 185, 143, 0.15), rgba(72, 187, 120, 0.15));
    border: 2px solid var(--calm-green);
}

.rule-item i {
    color: var(--soft-teal);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.rule-item p {
    flex: 1;
    font-size: 1rem;
    line-height: 1.6;
}

.highlight-text {
    color: var(--success-green);
    font-weight: 700;
}

/* Manager Payoff Section */
.manager-payoff {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, rgba(44, 95, 141, 0.05), rgba(74, 155, 159, 0.05));
}

.payoff-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.payoff-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

.balance-circle {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue), var(--soft-teal));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.balance-circle::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    border-radius: 50%;
    background: var(--white);
}

.circle-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}

.circle-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: var(--font-display);
    margin-bottom: var(--spacing-xs);
}

.circle-label {
    font-size: 0.9rem;
    color: var(--dark-gray);
    opacity: 0.7;
}

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

.timeline-item {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.timeline-item i {
    color: var(--calm-green);
    font-size: 1.5rem;
}

.timeline-item span {
    font-weight: 600;
    color: var(--dark-gray);
}

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

.insight-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.insight-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.insight-card i {
    font-size: 2rem;
    color: var(--warm-gold);
    margin-bottom: var(--spacing-md);
}

.insight-card h3 {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.insight-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--dark-gray);
}

/* Decision Tree Section */
.decision-tree {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.decision-checklist {
    max-width: 800px;
    margin: var(--spacing-xl) auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.check-item {
    background: var(--soft-gray);
    border-radius: 16px;
    padding: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition);
    border: 3px solid transparent;
}

.check-item:hover {
    background: rgba(74, 155, 159, 0.1);
}

.check-item.checked {
    background: rgba(111, 185, 143, 0.15);
    border-color: var(--calm-green);
}

.check-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 3px solid var(--medium-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.check-item.checked .check-circle {
    background: var(--success-green);
    border-color: var(--success-green);
}

.check-circle i {
    color: var(--white);
    font-size: 1.5rem;
    opacity: 0;
    transition: var(--transition);
}

.check-item.checked .check-circle i {
    opacity: 1;
}

.check-content {
    flex: 1;
}

.check-content h3 {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.check-content p {
    font-size: 0.95rem;
    color: var(--dark-gray);
    opacity: 0.8;
}

.decision-result {
    max-width: 600px;
    margin: var(--spacing-xl) auto 0;
    text-align: center;
}

.result-box {
    background: var(--soft-gray);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
}

.result-box.affirmative {
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.2), rgba(111, 185, 143, 0.2));
    border: 3px solid var(--success-green);
}

.result-box.negative {
    background: linear-gradient(135deg, rgba(232, 184, 109, 0.2), rgba(244, 164, 96, 0.2));
    border: 3px solid var(--warm-gold);
}

.result-prompt {
    font-size: 1.1rem;
    color: var(--dark-gray);
    opacity: 0.6;
}

.result-answer {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-display);
    margin: 0;
}

.result-answer.yes {
    color: var(--success-green);
}

.result-answer.not-now {
    color: var(--warm-gold);
}

.result-note {
    font-size: 1rem;
    color: var(--dark-gray);
    font-style: italic;
}

/* Success Section */
.success-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, rgba(111, 185, 143, 0.1), rgba(74, 155, 159, 0.1));
}

.success-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.success-item {
    background: var(--white);
    border-radius: 16px;
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.success-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.success-item i {
    font-size: 3rem;
    color: var(--soft-teal);
    margin-bottom: var(--spacing-md);
}

.success-item h3 {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.success-item p {
    font-size: 0.95rem;
    color: var(--dark-gray);
    opacity: 0.8;
}

/* Footer */
.footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer p {
    margin: 0.25rem 0;
}

.footer-tagline {
    opacity: 0.8;
    font-style: italic;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .rule-banner {
        flex-direction: column;
        text-align: center;
    }
    
    .amex-content,
    .payoff-content {
        grid-template-columns: 1fr;
    }
    
    .success-grid {
        grid-template-columns: 1fr;
    }
    
    .lane-header {
        padding: var(--spacing-md);
    }
    
    .lane-number {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .lane-info h3 {
        font-size: 1.1rem;
        flex-wrap: wrap;
    }
    
    .balance-circle {
        width: 220px;
        height: 220px;
    }
    
    .circle-amount {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .goal-card {
        padding: var(--spacing-lg);
    }
    
    .check-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}