:root {
    /* Enhanced Color Palette */
    --primary: #2563eb;
    --secondary: #6366f1;
    --accent: #f59e0b;
    --success: #10b981;
    --info: #3b82f6;
    --warning: #f59e0b;
    --danger: #ef4444;
    --light: #f8fafc;
    --dark: #0f172a;
    --white: #ffffff;
    
    /* Modern Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, #818cf8 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #fbbf24 100%);
    
    /* Enhanced Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Refined Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

/* Global Styles */
body {
    background-color: var(--light);
    color: var(--dark);
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

/* Modern Card Styles */
.card {
    border: none;
    border-radius: 1rem;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Enhanced Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: var(--white);
}

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

/* Modern Navigation */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) 0;
}

.nav-link {
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm) !important;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 10px;
    background: var(--gradient-primary);
    transition: width 0.3s ease, left 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
    left: 0;
}

/* Enhanced Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.footer-wave {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: url('../images/patterns/wave-pattern.svg') repeat-x;
    opacity: 0.1;
}

/* Modern Section Styles */
.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

/* Enhanced Animations */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.active {
    opacity: 1;
    transform: translateY(0);
}

/* Modern Form Styles */
.form-control {
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Enhanced Image Styles */
.img-hover-zoom {
    overflow: hidden;
    border-radius: 1rem;
}

.img-hover-zoom img {
    transition: transform 0.5s ease;
}

.img-hover-zoom:hover img {
    transform: scale(1.1);
}

/* Utility Classes */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient {
    background: var(--gradient-primary);
}

.hover-shadow {
    transition: box-shadow 0.3s ease;
}

.hover-shadow:hover {
    box-shadow: var(--shadow-lg);
}