/**
 * Marketing Landing Page Styles
 * Calm, trust-first design language matching product UI
 */

:root {
    /* Colors - matching product UI */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-secondary: #10b981;
    --color-neutral: #6b7280;
    --color-neutral-light: #9ca3af;
    --color-neutral-lighter: #e5e7eb;
    --color-neutral-lightest: #f3f4f6;
    
    /* Text colors */
    --text-primary: #111827;
    --text-secondary: #374151;
    --text-tertiary: #6b7280;
    
    /* Backgrounds */
    --bg-white: #ffffff;
    --bg-soft: #f9fafb;
    --gradient-soft: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    --gradient-hero: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* SECTION 1 — HERO */
.hero-section {
    background: var(--gradient-hero);
    color: white;
    padding: var(--space-3xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-headline {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero-subheadline {
    font-size: 1.25rem;
    line-height: 1.7;
    opacity: 0.95;
    margin-bottom: var(--space-2xl);
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

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

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

.cta-button.secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
}

/* SECTION 2 — THE PROBLEM */
.problem-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-2xl);
    color: var(--text-primary);
    text-align: center;
}

.problem-content {
    max-width: 700px;
    margin: 0 auto;
}

.problem-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--space-lg);
    color: var(--text-secondary);
}

.bridge-sentence {
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 2px solid var(--color-neutral-lighter);
    text-align: center;
}

.bridge-sentence strong {
    color: var(--color-primary);
}

/* SECTION 3 — THE SHIFT */
.shift-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-soft);
}

.before-after {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    max-width: 900px;
    margin: 0 auto var(--space-2xl);
}

.column-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.before-column .column-title {
    color: var(--color-neutral);
}

.after-column .column-title {
    color: var(--color-primary);
}

.shift-list {
    list-style: none;
    padding: 0;
}

.shift-list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
}

.shift-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-neutral-light);
    font-weight: bold;
}

.shift-note {
    max-width: 700px;
    margin: var(--space-2xl) auto 0;
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-style: italic;
    padding: var(--space-lg);
    background: white;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
}

/* SECTION 4 — HOW IT WORKS */
.how-it-works-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.step-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* SECTION 5 — WHAT MAKES THIS DIFFERENT */
.different-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-soft);
}

.different-content {
    max-width: 1000px;
    margin: 0 auto;
}

.different-points {
    margin-bottom: var(--space-3xl);
}

.different-point {
    background: white;
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    border-left: 4px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.point-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.point-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.point-description em {
    color: var(--color-primary);
    font-style: normal;
    font-weight: 500;
}

.not-callout {
    background: #fef3c7;
    border: 2px solid #fcd34d;
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    max-width: 700px;
    margin: 0 auto;
}

.callout-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: #78350f;
}

.not-list {
    list-style: none;
    padding: 0;
    margin-bottom: var(--space-lg);
}

.not-list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: #78350f;
    line-height: 1.7;
}

.not-list li::before {
    content: "×";
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: bold;
    font-size: 1.2rem;
}

.callout-note {
    font-size: 0.95rem;
    color: #92400e;
    font-style: italic;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid #fcd34d;
}

/* SECTION 6 — WHO IT'S FOR */
.audience-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.audience-content {
    max-width: 800px;
    margin: 0 auto;
}

.audience-content > p {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    color: var(--text-secondary);
}

.audience-list,
.when-list,
.need-list {
    list-style: none;
    padding: 0;
    margin-bottom: var(--space-xl);
}

.audience-list li,
.when-list li,
.need-list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
}

.audience-list li::before,
.when-list li::before,
.need-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: bold;
}

.when-to-use,
.what-you-need {
    background: var(--bg-soft);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
}

.when-title,
.need-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.audience-cta {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* SECTION 7 — COMPARISON */
.comparison-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-soft);
}

.comparison-intro {
    max-width: 800px;
    margin: 0 auto var(--space-2xl);
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    text-align: center;
}

.comparison-table {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 2fr 2fr;
    gap: var(--space-lg);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-neutral-lighter);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row.header {
    background: var(--bg-soft);
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--color-neutral-lighter);
}

.comparison-row.highlight {
    background: rgba(99, 102, 241, 0.05);
    border-left: 4px solid var(--color-primary);
}

.comparison-cell {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.comparison-cell.tool {
    font-weight: 500;
    color: var(--text-primary);
}

.tool-examples {
    font-size: 0.875rem;
    color: var(--color-neutral);
    font-weight: normal;
    display: block;
    margin-top: var(--space-xs);
}

.comparison-note {
    max-width: 800px;
    margin: var(--space-2xl) auto 0;
    text-align: center;
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* SECTION 8 — FOOTER */
.footer-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
    border-top: 2px solid var(--color-neutral-lighter);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.footer-disclaimer {
    margin-bottom: var(--space-xl);
}

.footer-disclaimer p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.footer-disclaimer strong {
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-lg);
    }
    
    .hero-headline {
        font-size: 2rem;
    }
    
    .hero-subheadline {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .before-after {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .step {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .step-number {
        align-self: flex-start;
    }
    
    .comparison-row {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .comparison-row.header {
        display: none;
    }
    
    .comparison-cell {
        padding: var(--space-xs) 0;
    }
    
    .comparison-cell.tool {
        font-weight: 600;
        padding-bottom: var(--space-sm);
        border-bottom: 1px solid var(--color-neutral-lighter);
    }
}

@media (max-width: 480px) {
    .hero-headline {
        font-size: 1.75rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .cta-button {
        width: 100%;
        text-align: center;
    }
}