/* Variables CSS */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --dark-color: #1f2937;
    --darker-color: #111827;
    --light-color: #f8fafc;
    --text-color: #374151;
    --text-light: #6b7280;
    --border-color: #e5e7eb;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
}

.navbar-brand i {
    margin-right: 0.5rem;
}

.nav-link {
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--darker-color) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(37, 99, 235, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(30, 64, 175, 0.4) 0%, transparent 50%),
        linear-gradient(45deg, transparent 30%, rgba(59, 130, 246, 0.2) 50%, transparent 70%);
    background-size: 400px 400px, 300px 300px, 500px 500px, 100% 100%;
    opacity: 0.8;
    animation: backgroundMove 20s linear infinite;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(59, 130, 246, 0.1) 10px,
            rgba(59, 130, 246, 0.1) 20px
        );
    pointer-events: none;
}

@keyframes backgroundMove {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(-50px) translateY(-25px); }
}

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

.hero-image {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Botones */
.btn {
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

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

.btn-outline-light:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Service Cards */
.service-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.service-card h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.service-card ul li {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

/* Tech Cards */
.tech-card {
    background: white;
    padding: 2rem 1rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.tech-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tech-card h5 {
    font-weight: 600;
    color: var(--dark-color);
}

/* Project Cards */
.project-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.project-content {
    padding: 1.5rem;
}

.project-content h5 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.project-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.project-tags .badge {
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Contact Section */
.contact-info {
    padding: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 1rem;
    width: 40px;
}

.contact-item h6 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--text-light);
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    color: white;
}

/* Contact Form */
.contact-form .form-control {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

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

.contact-form textarea {
    resize: vertical;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding: 2rem 0;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .service-card,
    .tech-card,
    .project-card {
        margin-bottom: 2rem;
    }
    
    .contact-info {
        padding: 1rem;
        margin-bottom: 2rem;
    }
}

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

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

/* Scroll suave */
html {
    scroll-behavior: smooth;
}

/* Secciones */
section {
    padding: 5rem 0;
}

/* Footer */
.bg-darker {
    background-color: var(--darker-color);
}

/* Efectos adicionales */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.border-primary {
    border-color: var(--primary-color) !important;
}

/* Animación para el spinner */
.spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}