/* Variables */
:root {
    --primary-color: #2563EB;
    --secondary-color: #1E40AF;
    --dark-color: #1F2937;
    --light-color: #F3F4F6;
    --text-color: #374151;
    --border-color: #E5E7EB;
    --transition: all 0.3s ease;
    --success-color: #10B981;
    --danger-color: #EF4444;
}

/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-color);
    background-image: 
        radial-gradient(at 40% 20%, hsla(220, 100%, 95%, 1) 0px, transparent 50%),
        radial-gradient(at 80% 0%, hsla(220, 100%, 95%, 1) 0px, transparent 50%),
        radial-gradient(at 0% 50%, hsla(220, 100%, 95%, 1) 0px, transparent 50%),
        radial-gradient(at 80% 50%, hsla(220, 100%, 95%, 1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(220, 100%, 95%, 1) 0px, transparent 50%),
        radial-gradient(at 80% 100%, hsla(220, 100%, 95%, 1) 0px, transparent 50%),
        radial-gradient(at 0% 0%, hsla(220, 100%, 95%, 1) 0px, transparent 50%);
    background-attachment: fixed;
}

/* Header & Navigation */
.navbar {
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar-scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.navbar-dark .navbar-brand img {
    filter: brightness(0) invert(1);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

.navbar-dark .nav-link::after {
    background: white;
}

.navbar-dark .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
}

.navbar-dark .nav-link:hover,
.navbar-dark .nav-link.active {
    color: white !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 8rem 0 6rem;
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

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

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content .lead {
    font-size: 1.25rem;
    color: var(--text-color);
    opacity: 0.9;
}

.hero-image {
    position: relative;
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.5s ease;
}

.hero-image:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.hero-image-shape {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    border-radius: 1rem;
    z-index: 0;
    opacity: 0.1;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-color);
    margin: 0;
}

.hero-shape {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 1;
}

.hero-shape svg {
    width: 100%;
    height: auto;
    display: block;
}

/* Service Cards */
.service-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 1.5rem;
    color: white;
}

/* Expertise Cards */
.expertise-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
}

.expertise-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Case Study Cards */
.case-study-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    transition: transform 0.3s ease;
}

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

.case-study-image {
    position: relative;
    overflow: hidden;
}

.case-study-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-study-card:hover .case-study-image img {
    transform: scale(1.05);
}

.case-study-content {
    padding: 1.5rem;
}

.tech-badge {
    background: var(--light-color);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

/* Contact Form */
.contact-form {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
}

.form-control {
    border: 1px solid #e2e8f0;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

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

/* Footer */
footer {
    background: var(--dark-color);
    color: white;
}

.social-links a {
    font-size: 1.25rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-color) !important;
}

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Responsive Design */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--dark-color);
        padding: 1rem;
        border-radius: 8px;
        margin-top: 1rem;
    }
    
    .hero-section {
        padding: 4rem 0;
        min-height: auto;
    }
    
    .hero-section .display-4 {
        font-size: 2.5rem;
    }
}

@media (max-width: 767.98px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .hero-section .lead {
        font-size: 1.1rem;
    }
    
    .service-card,
    .expertise-card,
    .case-study-card {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 575.98px) {
    .hero-section {
        padding: 4rem 0;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .btn {
        width: 100%;
    }
}