:root {
    /* Modern Color Palette */
    --primary: #2563eb; /* Modern Blue */
    --primary-dark: #1e40af; /* Deep Blue */
    --secondary: #6366f1; /* Indigo */
    --success: #10b981; /* Emerald */
    --info: #3b82f6; /* Sky Blue */
    --warning: #f59e0b; /* Amber */
    --danger: #ef4444; /* Red */
    --light: #f3f4f6; /* Cool Gray 100 */
    --dark: #1f2937; /* Cool Gray 800 */
    --white: #ffffff;
    --off-white: #f9fafb;
    
    /* Modern Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, #a855f7 100%);
    --gradient-success: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modern Body Styles */
body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background-color: var(--off-white);
}

/* Modern Navigation */
.navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.8) !important;
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    color: var(--dark) !important;
    position: relative;
    padding: 0.5rem 1rem !important;
    margin: 0 0.25rem;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    font-weight: 500;
    transition: var(--transition);
}

.btn-outline-primary:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--white);
    transform: translateY(-2px);
}

/* Modern Cards */
.card {
    background: var(--white);
    border: none;
    border-radius: 1rem;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

/* Modern Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    border-radius: 0.75rem;
    transition: var(--transition);
}

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

.btn-primary:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

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

/* Modern Animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.6s ease-out forwards;
}

/* Modern Sections */
.section {
    padding: 5rem 0;
}

.section-header {
    margin-bottom: 3rem;
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}