/* Modern CSS Reset and Variables */
:root {
    /* Blue Theme Color Palette */
    --primary-blue: #0066cc;
    --secondary-blue: #004499;
    --accent-blue: #3388ff;
    --light-blue: #e6f2ff;
    --extra-light-blue: #f5faff;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #fafbfc;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    
    /* Additional Colors */
    --success-green: #28a745;
    --gradient-section: linear-gradient(135deg, var(--off-white) 0%, var(--extra-light-blue) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 102, 204, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 102, 204, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 102, 204, 0.2);
    --shadow-xl: 0 16px 64px rgba(0, 102, 204, 0.25);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    --gradient-hero: linear-gradient(135deg, var(--extra-light-blue) 0%, var(--white) 100%);
    --gradient-card: linear-gradient(145deg, var(--white) 0%, var(--light-gray) 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Shared Section Title Styles */
.section-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--text-primary);
    letter-spacing: -0.02em;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transform: translateX(-50%);
}

/* Shared Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 18px 36px;
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Focus states for accessibility */
.btn:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Responsive Container */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
}

@media (max-width: 480px) {
    :root {
        --space-xs: 0.375rem;
        --space-sm: 0.75rem;
        --space-md: 1rem;
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 2.5rem;
        --space-3xl: 3rem;
    }
    
    .container {
        padding: 0 var(--space-sm);
    }
}

/* Reduced motion accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print styles */
@media print {
    body {
        font-size: 12pt;
        color: black;
        background: white;
    }
    
    .container {
        max-width: none;
        margin: 0;
        padding: 0;
    }
}