/* Variables de color */
:root {
    --primary-color: #0066cc;
    --secondary-color: #ff6600;
    --dark-color: #1a1a1a;
    --light-color: #f8f9fa;
}

/* Navbar */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    background: rgba(0, 102, 204, 0.95);
}

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

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

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--secondary-color) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://images.unsplash.com/photo-1562577943-0c7d42e8c4f5?w=1920');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    padding-top: 76px;
}

.hero-section .overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 102, 204, 0.3);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
    padding: 150px 0 100px;
    margin-top: 76px;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

/* Service Cards */
.service-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1) !important;
}

/* Product Cards */
.product-card {
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.product-card img {
    transition: transform 0.3s ease;
}

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

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 12px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #0052a3;
    border-color: #0052a3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 204, 0.3);
}

.btn-outline-light {
    padding: 12px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255,255,255,0.3);
}

/* Footer */
footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--secondary-color) !important;
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .page-header {
        padding: 120px 0 80px;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
}

/* Loading animation */
.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Form validation */
.was-validated .form-control:valid {
    border-color: #28a745;
}

.was-validated .form-control:invalid {
    border-color: #dc3545;
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0052a3;
}