:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #0f172a;
    --text: #334155;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --accent: #3b82f6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--bg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

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

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

.btn-nav {
    background: var(--primary);
    color: white !important;
    padding: 0.5rem 1.25rem;
    border-radius: 6px;
}

.btn-nav:hover {
    background: var(--primary-dark);
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--secondary) 0%, #1e293b 100%);
    color: white;
    padding: 5rem 20px;
    text-align: center;
}

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

.hero h1 {
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-sub {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

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

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

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

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

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.2);
}

/* Sections */
section {
    padding: 4rem 20px;
}

section h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--secondary);
}

.lead {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Problem */
.problem {
    background: var(--bg-alt);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.problem-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    text-align: center;
}

.problem-card .icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.75rem;
}

.problem-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.problem-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Solution */
.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.benefit {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.benefit .check {
    color: #10b981;
    font-weight: 700;
    font-size: 1.25rem;
}

.benefit h3 {
    font-size: 1.125rem;
    color: var(--secondary);
    margin-bottom: 0.25rem;
}

.benefit p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* How It Works */
.how-it-works {
    background: var(--bg-alt);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-num {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step h3 {
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.timeline {
    text-align: center;
    margin-top: 2rem;
    color: var(--text-light);
}

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

/* CTA */
.cta {
    background: var(--primary);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
}

.cta p {
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

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

.cta .btn:hover {
    background: #f1f5f9;
}

/* Footer */
footer {
    background: var(--secondary);
    color: rgba(255,255,255,0.7);
    padding: 2rem 20px;
    text-align: center;
}

footer p {
    margin-bottom: 0.5rem;
}

footer a {
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-sub {
        font-size: 1rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
}