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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --text-dark: #1f2937;
    --text-medium: #4b5563;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --accent-color: #f59e0b;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo sup {
    font-size: 16px;
    margin-left: 2px;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    transition: color 0.2s;
}

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

.cta-button-small {
    background: var(--primary-color);
    color: white !important;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 600;
}

.cta-button-small:hover {
    background: var(--primary-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0 120px;
    text-align: center;
}

.hero-content h1 {
    font-size: 72px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -2px;
}

.hero-content h1 sup {
    font-size: 36px;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    opacity: 0.95;
}

.hero-description {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 32px;
}

.cta-button {
    background: white;
    color: var(--primary-color);
    padding: 16px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: transform 0.2s, box-shadow 0.2s;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.secondary-button {
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 16px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    transition: background 0.2s;
    display: inline-block;
}

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

.hero-trust {
    font-size: 14px;
    opacity: 0.8;
}

/* Problem Section */
.problem {
    padding: 80px 0;
    background: var(--bg-white);
}

.problem h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.section-intro {
    font-size: 20px;
    color: var(--text-medium);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.problem-item {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.problem-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.problem-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.problem-item p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background: var(--bg-light);
}

.how-it-works h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.feature-showcase {
    margin-top: 60px;
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.feature-detail {
    background: var(--bg-white);
    padding: 48px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.feature-number {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 24px;
    text-align: center;
    line-height: 48px;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 24px;
}

.feature-detail h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.feature-detail > p {
    font-size: 18px;
    color: var(--text-medium);
    margin-bottom: 24px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
}

.feature-list li {
    padding-left: 28px;
    position: relative;
    color: var(--text-medium);
}

.feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

/* Features Grid Section */
.features {
    padding: 80px 0;
    background: var(--bg-white);
}

.features h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* Why Different Section */
.why-different {
    padding: 80px 0;
    background: var(--bg-light);
}

.why-different h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
}

.comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.comparison-item {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.comparison-item.highlight {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(16, 185, 129, 0.05));
}

.comparison-item h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
}

.comparison-item h3 sup {
    font-size: 14px;
}

.comparison-list {
    list-style: none;
}

.comparison-list li {
    padding: 12px 0 12px 32px;
    position: relative;
    color: var(--text-medium);
    line-height: 1.6;
}

.comparison-list.negative li:before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #ef4444;
    font-weight: 700;
}

.comparison-list.positive li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

.why-tagline {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    font-style: italic;
}

/* Pilot Section */
.pilot {
    padding: 80px 0;
    background: var(--bg-white);
}

.pilot h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.pilot-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin: 60px 0 40px;
}

.pilot-benefit,
.pilot-ideal {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.pilot-benefit h3,
.pilot-ideal h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.pilot-benefit ul,
.pilot-ideal ul {
    list-style: none;
}

.pilot-benefit li,
.pilot-ideal li {
    padding: 10px 0 10px 28px;
    position: relative;
    color: var(--text-medium);
}

.pilot-benefit li:before,
.pilot-ideal li:before {
    content: "•";
    position: absolute;
    left: 8px;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 20px;
}

.pilot-note {
    text-align: center;
    font-size: 16px;
    color: var(--text-medium);
    margin-bottom: 40px;
    font-style: italic;
}

.pilot-cta {
    text-align: center;
}

/* About Section */
.about {
    padding: 80px 0;
    background: var(--bg-light);
}

.about h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 32px;
    text-align: center;
}

.about-text {
    max-width: 900px;
    margin: 0 auto 24px;
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-medium);
    text-align: center;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--bg-white);
}

.contact h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.contact-form {
    max-width: 700px;
    margin: 60px auto 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form button {
    width: 100%;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 16px;
}

.contact-form button:hover {
    background: var(--primary-dark);
}

.contact-direct {
    text-align: center;
    margin-top: 32px;
    color: var(--text-medium);
}

.contact-direct a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.contact-direct a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 48px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 8px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content h1 {
        font-size: 56px;
    }
    
    .hero-subtitle {
        font-size: 24px;
    }
    
    .nav {
        display: none;
    }
    
    .comparison {
        grid-template-columns: 1fr;
    }
    
    .pilot-benefits {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-content h1 {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-description {
        font-size: 18px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
    
    .problem h2,
    .how-it-works h2,
    .features h2,
    .why-different h2,
    .pilot h2,
    .about h2,
    .contact h2 {
        font-size: 32px;
    }
}
.problem-number {
    display: inline-block;
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    text-align: center;
    line-height: 48px;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 16px;
}