:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1f2937;
    --light-bg: #f3f4f6;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
}

/* Header Styles */
.navbar {
    padding: 1rem 0;
    background: linear-gradient(to right, #ffffff, #f8fafc);
    box-shadow: 0 2px 15px var(--shadow-color);
}

.navbar-brand {
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    transform: translateY(-2px);
}

.navbar-brand img {
    filter: drop-shadow(2px 2px 4px var(--shadow-color));
    transition: all 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar-brand span {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

.navbar-brand:hover span {
    transform: translateX(2px);
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.nav-link.active {
    color: var(--primary-color) !important;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    transform: perspective(1000px) rotateX(10deg);
}

/* Hero Section */
.hero-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--light-bg) 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?auto=format&fit=crop&w=1920&q=80') center/cover;
    opacity: 0.1;
    z-index: 0;
}

.min-vh-75 {
    min-height: 75vh;
}

/* Services Section */
.card {
    border: none;
    transition: all 0.3s ease;
    border-radius: 15px;
    background: #ffffff;
    box-shadow: 0 10px 20px var(--shadow-color);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.card-body {
    padding: 2rem;
    transform: translateZ(20px);
}

.card i {
    transition: all 0.3s ease;
}

.card:hover i {
    transform: scale(1.2) translateZ(30px);
}

/* Buttons */
.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
    transform-style: preserve-3d;
}

.btn-primary:hover {
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px) translateZ(20px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

/* Footer */
footer {
    background: linear-gradient(to right, #1f2937, #111827);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1557683316-973673baf926?auto=format&fit=crop&w=1920&q=80') center/cover;
    opacity: 0.05;
    z-index: 0;
}

footer a {
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

footer a:hover {
    color: var(--accent-color) !important;
    transform: translateY(-2px);
}

.social-links a {
    font-size: 1.2rem;
    transition: all 0.3s ease;
    display: inline-block;
    transform-style: preserve-3d;
}

.social-links a:hover {
    transform: translateY(-3px) rotateY(10deg);
    color: var(--accent-color) !important;
}

/* 3D Elements */
.three-d-element {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.three-d-element:hover {
    transform: rotateY(10deg) rotateX(5deg);
}

/* Image Styles */
.img-3d {
    transition: all 0.3s ease;
    transform-style: preserve-3d;
    box-shadow: 0 10px 30px var(--shadow-color);
}

.img-3d:hover {
    transform: translateZ(20px) rotateY(5deg);
    box-shadow: 0 20px 40px var(--shadow-color);
}

/* Stats Section */
.stats-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    transform-style: preserve-3d;
    transition: all 0.3s ease;
}

.stats-card:hover {
    transform: translateZ(30px);
    background: rgba(255, 255, 255, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .min-vh-75 {
        min-height: auto;
    }
    
    .card:hover {
        transform: translateY(-5px);
    }
}