:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --dark-color: #1f2937;
    --light-color: #f3f4f6;
}

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

/* Navigation */
.navbar {
    background-color: rgba(31, 41, 55, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white !important;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: white !important;
}

/* Hero Section */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--dark-color), var(--secondary-color));
    color: white;
    overflow: hidden;
}

#three-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.hero .lead {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.75rem 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

/* Services Section */
.service-card {
    padding: 2rem;
    border-radius: 1rem;
    background: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card i {
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 1.5rem;
    margin: 1rem 0;
}

/* Portfolio Section */
.portfolio-card {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.portfolio-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
}

.portfolio-content h3 {
    margin-bottom: 0.5rem;
}

/* Contact Section */
.form-control {
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid #e5e7eb;
    transition: border-color 0.3s ease;
}

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

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

.service-card, .portfolio-card {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .service-card {
        margin-bottom: 1.5rem;
    }
}