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

:root {
    --primary: #007AFF;
    --primary-dark: #0056b3;
    --text: #1d1d1f;
    --text-secondary: #6e6e73;
    --bg: #ffffff;
    --bg-alt: #f5f5f7;
    --border: #d2d2d7;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    line-height: 1.5;
    background: var(--bg);
}

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

h1, h2, h3 {
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    font-size: 17px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 48px;
    font-size: 20px;
}

/* Hero */
.hero {
    padding: 80px 0 60px;
    background: linear-gradient(180deg, #f5f5f7 0%, #ffffff 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 48px;
    line-height: 1.1;
    margin-bottom: 20px;
}

.subheadline {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.trust {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

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

.problem h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 48px;
}

.pain-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pain-point {
    text-align: center;
    padding: 32px;
    background: var(--bg-alt);
    border-radius: 16px;
}

.pain-point .icon {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
}

.pain-point h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.pain-point p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Solution Section */
.solution {
    padding: 80px 0;
    background: var(--bg-alt);
}

.solution h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 48px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.step {
    text-align: center;
    padding: 32px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    margin: 0 auto 16px;
}

.step h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.step p {
    color: var(--text-secondary);
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background: var(--bg);
}

.benefits h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 48px;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.benefit {
    text-align: center;
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 16px;
}

.benefit .icon {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
}

.benefit h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.benefit p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Use Cases */
.use-cases {
    padding: 80px 0;
    background: var(--bg-alt);
}

.use-cases h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 48px;
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.use-case {
    text-align: center;
    padding: 24px;
    background: var(--bg);
    border-radius: 12px;
}

.use-case .icon {
    font-size: 32px;
    display: block;
    margin-bottom: 12px;
}

.use-case p {
    font-size: 15px;
    color: var(--text-secondary);
}

.stats {
    display: flex;
    justify-content: center;
    gap: 64px;
}

.stat {
    text-align: center;
}

.stat .number {
    display: block;
    font-size: 48px;
    font-weight: 600;
    color: var(--primary);
}

.stat .label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Download CTA */
.download {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
    text-align: center;
}

.download h2 {
    font-size: 42px;
    margin-bottom: 32px;
}

.guarantee {
    margin-top: 16px;
    font-size: 16px;
    color: var(--text-secondary);
}

.requirements {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* FAQ */
.faq {
    padding: 80px 0;
    background: var(--bg);
}

.faq h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 48px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.faq-item {
    padding: 24px;
    background: var(--bg-alt);
    border-radius: 12px;
}

.faq-item h3 {
    font-size: 17px;
    margin-bottom: 8px;
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 15px;
}

/* Footer */
footer {
    padding: 40px 0;
    background: var(--text);
    color: white;
    text-align: center;
}

.footer-links {
    margin-bottom: 16px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    margin: 0 16px;
    font-size: 14px;
}

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

.copyright {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}

/* Responsive */
@media (max-width: 768px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero h1 {
        font-size: 32px;
    }

    .subheadline {
        margin: 0 auto 32px;
    }

    .pain-points,
    .steps,
    .benefit-grid {
        grid-template-columns: 1fr;
    }

    .use-case-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats {
        flex-direction: column;
        gap: 32px;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }
}