/* Intercom-inspired Custom Design System */
:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Colors */
    --color-canvas: #f5f1ec;            /* Cream background */
    --color-surface-1: #ffffff;         /* Card background */
    --color-surface-2: #efebe4;         /* Alt background / Stripes */
    --color-hairline: #d3cec6;          /* 1px border */
    --color-hairline-soft: #e5e1d9;     /* Subtle separator */
    
    --color-ink: #111111;               /* Primary Text & CTA */
    --color-ink-muted: #626260;         /* Secondary Text */
    --color-ink-subtle: #7b7b78;        /* Tertiary / Footer */
    --color-ink-tertiary: #9c9fa5;      /* Disabled */
    
    --color-on-primary: #ffffff;
    --color-fin-orange: #ff5600;        /* AI / CTA Accent */
    --color-teal: #10b981;

    /* Spacing */
    --spacing-xxs: 4px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-section: 96px;

    /* Border Radii */
    --rounded-xs: 4px;
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
    --rounded-xxl: 24px;
    --rounded-pill: 9999px;
    --rounded-full: 9999px;
}

/* Reset & Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-canvas);
}

body {
    background-color: var(--color-canvas);
    color: var(--color-ink);
    font-family: var(--font-sans);
    line-height: 1.5;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography Scale */
h1 {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 4.5rem; /* 72px */
    line-height: 1.05;
    letter-spacing: -2.0px;
    color: var(--color-ink);
}

h2 {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 3.5rem; /* 56px */
    line-height: 1.10;
    letter-spacing: -1.4px;
    color: var(--color-ink);
}

h3 {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 2.5rem; /* 40px */
    line-height: 1.15;
    letter-spacing: -0.8px;
    color: var(--color-ink);
}

h4 {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 1.375rem; /* 22px */
    line-height: 1.25;
    letter-spacing: -0.3px;
    color: var(--color-ink);
}

p {
    font-size: 1rem; /* 16px */
    color: var(--color-ink-muted);
}

.eyebrow {
    display: block;
    font-size: 0.875rem; /* 14px */
    font-weight: 500;
    line-height: 1.30;
    color: var(--color-ink-muted);
    margin-bottom: var(--spacing-xs);
    text-transform: none; /* Sentence case by default */
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 10px 18px;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9375rem; /* 15px */
    line-height: 1.20;
    border-radius: var(--rounded-md);
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.btn-primary:hover {
    background-color: #222222;
}

.btn-secondary {
    background-color: var(--color-surface-1);
    color: var(--color-ink);
    border: 1px solid var(--color-hairline);
}

.btn-secondary:hover {
    background-color: var(--color-canvas);
    border-color: var(--color-ink-muted);
}

.btn-tertiary {
    background-color: var(--color-canvas);
    color: var(--color-ink);
}

.btn-tertiary:hover {
    background-color: var(--color-surface-2);
}

.btn-fin {
    background-color: var(--color-fin-orange);
    color: var(--color-on-primary);
}

.btn-fin:hover {
    background-color: #e04c00;
}

.btn-lg {
    padding: 14px 24px;
    font-size: 1.0625rem;
    border-radius: var(--rounded-md);
}

/* Layout and Navigation (top-nav) */
.top-nav {
    height: 56px;
    border-bottom: 1px solid var(--color-hairline-soft);
    background-color: var(--color-canvas);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

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

.logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.sub-logo {
    font-size: 0.6875rem;
    color: var(--color-ink-subtle);
    font-weight: 500;
}

.main-logo {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-ink);
}

.header-badge {
    background-color: var(--color-surface-1);
    border: 1px solid var(--color-hairline);
    padding: 6px 12px;
    border-radius: var(--rounded-pill);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-ink-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-fin-orange);
    border-radius: 50%;
    display: inline-block;
}

/* Hero Section */
.hero-section {
    padding: var(--spacing-section) 0 var(--spacing-xxl);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-content h1 {
    margin-bottom: var(--spacing-md);
}

.hero-lead {
    font-size: 1.25rem; /* 20px subhead */
    line-height: 1.40;
    letter-spacing: -0.2px;
    color: var(--color-ink-muted);
    margin-bottom: var(--spacing-xl);
    max-width: 580px;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 2.5rem; /* 40px display-md */
    font-weight: 500;
    letter-spacing: -0.8px;
    color: var(--color-ink);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-ink-subtle);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* Info Card (Surface-1 white on cream) */
.glass-card {
    background-color: var(--color-surface-1);
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-lg);
}

.main-info-card h3 {
    font-size: 1.375rem; /* 22px card-title */
    line-height: 1.25;
    letter-spacing: -0.3px;
    margin-bottom: var(--spacing-sm);
}

.main-info-card p {
    font-size: 0.875rem; /* 14px body-sm */
    color: var(--color-ink-muted);
    margin-bottom: var(--spacing-md);
}

.card-icon {
    font-size: 2rem;
    color: var(--color-fin-orange);
    margin-bottom: var(--spacing-sm);
}

.benefit-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.benefit-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-ink);
}

.text-orange {
    color: var(--color-fin-orange);
}

/* Steps Section */
.steps-section {
    padding: var(--spacing-section) 0;
    border-top: 1px solid var(--color-hairline-soft);
}

.section-title-wrapper {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.section-title {
    font-size: 3.5rem; /* 56px display-lg */
    margin-bottom: var(--spacing-xs);
}

.section-subtitle {
    font-size: 1.125rem; /* 18px body-lg */
    color: var(--color-ink-muted);
    max-width: 600px;
    margin: 0 auto;
}

.step-slider-container {
    max-width: 960px;
    margin: 0 auto;
    background-color: var(--color-surface-1);
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-lg);
}

/* Hide card border in slide body since the parent container already has it */
.step-slide .step-body {
    border: none;
    padding: 0;
}

/* Slider Nav Tabs */
.step-slider-nav {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    border-bottom: 1px solid var(--color-hairline-soft);
    margin-bottom: var(--spacing-lg);
}

.step-nav-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 12px 6px;
    color: var(--color-ink-subtle);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.8125rem;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
    text-align: center;
}

.step-nav-btn:hover {
    color: var(--color-ink);
}

.step-nav-btn.active {
    color: var(--color-ink);
    border-bottom: 2px solid var(--color-ink);
    font-weight: 600;
}

.nav-label {
    font-size: 0.75rem;
    color: var(--color-ink-muted);
}

.step-nav-btn.active .nav-label {
    color: var(--color-ink);
    font-weight: 600;
}

/* Slides Visibility */
.step-slide {
    display: none;
}

.step-slide.active {
    display: block;
    animation: fadeSlide 0.3s ease-out;
}

@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Controls */
.step-slider-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-hairline-soft);
}

.step-body {
    background-color: var(--color-surface-1);
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.step-badge {
    display: inline-block;
    padding: 4px 8px;
    background-color: var(--color-canvas);
    border-radius: var(--rounded-xs);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-ink-muted);
    margin-bottom: var(--spacing-xs);
}

.step-info h3 {
    font-size: 1.375rem; /* 22px card-title */
    line-height: 1.25;
    letter-spacing: -0.3px;
    margin-bottom: var(--spacing-xs);
}

.step-info p {
    font-size: 0.875rem; /* 14px body-sm */
    color: var(--color-ink-muted);
}

.service-examples {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.service-examples li {
    font-size: 0.8125rem;
    color: var(--color-ink);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 8px 12px;
    background-color: var(--color-canvas);
    border-radius: var(--rounded-sm);
    border: 1px solid var(--color-hairline-soft);
}

.service-examples li i {
    color: var(--color-ink-muted);
}

/* Screenshot Display */
.step-screenshot-wrapper {
    width: 100%;
    margin-top: var(--spacing-sm);
    border-radius: var(--rounded-xl); /* Product mockup frame 16px */
    overflow: hidden;
    border: 1px solid var(--color-hairline);
    background-color: var(--color-canvas);
}

.step-screenshot {
    width: 100%;
    height: auto;
    display: block;
}

.screenshot-caption {
    display: block;
    padding: 10px var(--spacing-md);
    font-size: 0.8125rem;
    color: var(--color-ink-muted);
    background-color: var(--color-surface-2);
    border-top: 1px solid var(--color-hairline);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Step 4 Respondent Fields */
.respondent-fields-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.field-item {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background-color: var(--color-canvas);
    border: 1px solid var(--color-hairline-soft);
    border-radius: var(--rounded-md);
    font-size: 0.8125rem;
}

.field-item i {
    color: var(--color-ink-muted);
    font-size: 1rem;
    margin-top: 2px;
}

/* Step 5 Ratings Bar */
.rating-visual-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.rating-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-sm);
    background-color: var(--color-canvas);
    border: 1px solid var(--color-hairline-soft);
    border-radius: var(--rounded-md);
    font-size: 0.75rem;
}

.score-badge {
    width: 28px;
    height: 28px;
    border-radius: var(--rounded-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.8125rem;
    margin-bottom: 6px;
    color: white;
}

.score-1 .score-badge { background-color: #e11d48; }
.score-2 .score-badge { background-color: #ea580c; }
.score-3 .score-badge { background-color: #2563eb; }
.score-4 .score-badge { background-color: #059669; }

/* Elements Accordion (faq-row style) */
.elements-section {
    padding: var(--spacing-section) 0;
    border-top: 1px solid var(--color-hairline-soft);
}

.accordion-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.accordion-item.faq-row {
    background-color: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    border-radius: var(--rounded-md);
    overflow: hidden;
    transition: background-color 0.2s ease;
}

.accordion-item.faq-row.active {
    background-color: var(--color-surface-1);
    border: 1px solid var(--color-hairline);
}

.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    color: var(--color-ink);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 1rem;
    text-align: left;
    cursor: pointer;
}

.acc-title-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.acc-title-left i {
    color: var(--color-ink-muted);
}

.acc-icon {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
    color: var(--color-ink-muted);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    font-size: 0.875rem; /* 14px body-sm */
    color: var(--color-ink-muted);
}

.accordion-item.active .acc-icon {
    transform: rotate(180deg);
}

/* CTA / closing CTA panel bottom */
.cta-section {
    padding: var(--spacing-section) 0 var(--spacing-section);
    border-top: 1px solid var(--color-hairline-soft);
}

.cta-banner {
    max-width: 850px;
    margin: 0 auto;
    background-color: var(--color-surface-1); /* White card */
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl) var(--spacing-lg);
    text-align: center;
}

.cta-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--rounded-md);
    background-color: var(--color-canvas);
    border: 1px solid var(--color-hairline);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-ink);
    margin: 0 auto var(--spacing-md);
}

.cta-banner h2 {
    font-size: 2.5rem; /* 40px display-md */
    letter-spacing: -0.8px;
    margin-bottom: var(--spacing-sm);
}

.cta-banner p {
    font-size: 1rem;
    max-width: 620px;
    margin: 0 auto var(--spacing-lg);
}

.cta-footer-info {
    margin-top: var(--spacing-lg);
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--color-ink-subtle);
}

.cta-footer-info i {
    margin-right: 4px;
}

.separator {
    color: var(--color-hairline);
}

/* Footer Section */
.footer {
    background-color: var(--color-canvas);
    border-top: 1px solid var(--color-hairline-soft);
    padding: var(--spacing-xxl) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

.footer-info h4, .footer-links h4 {
    font-size: 0.9375rem; /* 15px */
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-ink);
}

.footer-info p {
    font-size: 0.875rem; /* 14px body-sm */
    color: var(--color-ink-subtle);
    margin-bottom: 6px;
}

.footer-addr {
    margin-top: var(--spacing-md);
    max-width: 480px;
}

.footer-info p i {
    color: var(--color-ink-muted);
    margin-right: 4px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-ink-subtle);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: var(--color-ink);
}

.footer-bottom {
    border-top: 1px solid var(--color-hairline-soft);
    padding: var(--spacing-md) 0;
    text-align: center;
    font-size: 0.75rem; /* 12px caption */
    color: var(--color-ink-subtle);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    h1 { font-size: 3.5rem; letter-spacing: -1.4px; }
    h2 { font-size: 2.75rem; letter-spacing: -0.8px; }
    h3 { font-size: 2rem; letter-spacing: -0.5px; }

    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-lead {
        margin: 0 auto var(--spacing-lg);
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 600px;
        margin: 0 auto;
        width: 100%;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .nav-label {
        display: none;
    }
    .step-nav-btn {
        padding: 8px 4px;
        font-size: 1rem;
    }
    
    .service-examples {
        grid-template-columns: 1fr;
    }
    
    .respondent-fields-grid {
        grid-template-columns: 1fr;
    }
    
    .rating-visual-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}