:root {
    --primary-color: #4A7BF7;
    --secondary-color: #6B7280;
    --accent-color: #2563EB;
    --text-color: #1F2937;
    --light-bg: #F3F4F6;
    --nav-bg: #FFFFFF;
    --heading-color: #6366F1;
    --border-color: #E5E7EB;
    --process-color: #10B981;
    --code-bg: #2d2d2d;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #F8FAFC;
    padding-top: 80px;
    min-width: 390px; /* iPhone 16 portrait size */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero section */
.hero {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(to bottom, #EEF2FF, #F8FAFC);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.hero h1 span {
    color: var(--heading-color);
}

.hero p {
    font-size: 1.25rem;
    color: var(--secondary-color);
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Section styles */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-color);
}

/* Common card/box styles */
.card, .price-card, .metric-card, .feature-section, .process-step, .timeline-item, .agreement-section, .signature-section, .delivery-section {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

/* Common list styles */
.feature-list, .benefit-list, .terms-list {
    list-style: none;
    margin: 1.5rem 0;
}

.feature-list li, .benefit-list li, .terms-list li {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    color: var(--secondary-color);
    position: relative;
}

.feature-list li::before {
    content: "✓";
    color: var(--accent-color);
    margin-right: 0.5rem;
    font-weight: bold;
}

.benefit-list li::before {
    content: "✓";
    color: var(--process-color);
    margin-right: 0.5rem;
    font-weight: bold;
}

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

/* Common grid styles */
.grid, .feature-grid, .process-grid, .delivery-grid, .pricing-grid, .timeline-grid {
    display: grid;
    gap: 2rem;
}

/* Common utility classes */
.bg-white {
    background-color: white;
}

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

.color-secondary {
    color: var(--secondary-color);
}

/* Common media queries */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .hero h1 {
        font-size: clamp(2rem, 5vw, 3.5rem);
        padding: 0 1rem;
    }

    .hero p {
        font-size: clamp(1rem, 2.5vw, 1.25rem);
        padding: 0 1rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .grid, .feature-grid, .process-grid, .delivery-grid, .pricing-grid, .timeline-grid {
        grid-template-columns: 1fr;
    }
}