/* CSS Variables for Accessibility-Friendly Colors */
:root {
    --primary-navy: #1e3a8a;
    --primary-mint: #10b981;
    --secondary-mint: #d1fae5;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --background-light: #ffffff;
    --background-gray: #f9fafb;
    --border-color: #e5e7eb;
    --error-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --border-radius-large: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Nunito', 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-navy);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-navy);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background-gray) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero-headline {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-mint) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    max-width: 400px;
    width: 100%;
}

.accessibility-scan-demo {
    background: white;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-heavy);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.scan-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-navy);
}

.scan-results {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.scan-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    background: var(--background-gray);
}

.status.error {
    color: var(--error-color);
}

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

/* Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    min-height: 48px;
}

.cta-button.primary {
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-mint) 100%);
    color: white;
    box-shadow: var(--shadow-medium);
}

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

.cta-button.secondary {
    background: transparent;
    color: var(--primary-navy);
    border: 2px solid var(--primary-navy);
}

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

.cta-button-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Problem + Solution Section */
.problem-solution {
    padding: 80px 0;
    background: var(--background-gray);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.problem-solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.problem-column h3,
.solution-column h3 {
    color: var(--primary-navy);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.pain-points,
.solutions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pain-point,
.solution {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    background: white;
    box-shadow: var(--shadow-light);
}

.pain-icon,
.solution-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.pain-point p,
.solution p {
    margin: 0;
    font-weight: 500;
}

/* Features Section */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-medium);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-card h3 {
    color: var(--primary-navy);
    margin-bottom: 1rem;
}

.coming-soon {
    font-size: 0.75rem;
    background: var(--warning-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    margin-left: 0.5rem;
}

/* Waitlist Section */
.waitlist {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-mint) 100%);
    color: white;
}

.waitlist .section-title {
    color: white;
}

.waitlist-subtitle {
    text-align: center;
    font-size: 1.25rem;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.9);
}

.waitlist-form {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-heavy);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="url"] {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-mint);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-dark);
}

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

/* Social Proof Section */
.social-proof {
    padding: 80px 0;
    background: var(--background-gray);
}

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.testimonial {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-medium);
    text-align: center;
}

.testimonial p {
    font-size: 1.125rem;
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.testimonial cite {
    color: var(--primary-navy);
    font-weight: 600;
}

.trust-signals {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.certification-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    font-weight: 600;
    color: var(--primary-navy);
}

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

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-mint);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-mint);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-mint);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .problem-solution-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .trust-signals {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
    }
    
    .waitlist-form {
        padding: 1.5rem;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for better accessibility */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--primary-mint);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-light: #000000;
        --border-color: #000000;
    }
}

/* Print styles */
@media print {
    .navbar,
    .hero-cta,
    .waitlist-form,
    .footer {
        display: none;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}