/* Variables CSS */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #ff6b35;
    --accent-color: #7b2cbf;
    --dark-bg: #0a0a0f;
    --darker-bg: #050508;
    --card-bg: #1a1a2e;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border-color: #2a2a3e;
    --gradient-primary: linear-gradient(135deg, #00d4ff, #7b2cbf);
    --gradient-secondary: linear-gradient(135deg, #ff6b35, #f7931e);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', monospace;
    font-weight: 700;
}

/* Navegación */
.navbar {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar-brand {
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    text-decoration: none;
}

.navbar-brand i {
    margin-right: 0.5rem;
    animation: pulse 2s infinite;
}

.nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    margin: 0 1rem;
    position: relative;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

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

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--darker-bg);
    overflow: hidden;
}

/* Stars Background */
.stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><circle cx="100" cy="100" r="1" fill="white" opacity="0.8"/><circle cx="300" cy="200" r="1" fill="white" opacity="0.6"/><circle cx="500" cy="150" r="1" fill="white" opacity="0.9"/><circle cx="700" cy="300" r="1" fill="white" opacity="0.7"/><circle cx="900" cy="250" r="1" fill="white" opacity="0.5"/><circle cx="200" cy="400" r="1" fill="white" opacity="0.8"/><circle cx="400" cy="350" r="1" fill="white" opacity="0.6"/><circle cx="600" cy="450" r="1" fill="white" opacity="0.9"/><circle cx="800" cy="400" r="1" fill="white" opacity="0.7"/><circle cx="150" cy="600" r="1" fill="white" opacity="0.5"/><circle cx="350" cy="550" r="1" fill="white" opacity="0.8"/><circle cx="550" cy="650" r="1" fill="white" opacity="0.6"/><circle cx="750" cy="600" r="1" fill="white" opacity="0.9"/><circle cx="950" cy="650" r="1" fill="white" opacity="0.7"/></svg>') repeat;
    animation: twinkle 20s linear infinite;
}

.twinkling {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    animation: twinkle 15s linear infinite;
}

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

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    animation: slideInLeft 1s ease-out;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 2s ease-in-out infinite alternate;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    animation: slideInLeft 1s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: slideInLeft 1s ease-out 0.4s both;
}

.hero-buttons {
    animation: slideInLeft 1s ease-out 0.6s both;
}

.btn {
    font-family: 'Orbitron', monospace;
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-right: 1rem;
    margin-bottom: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: white;
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-glow {
    animation: buttonGlow 2s ease-in-out infinite alternate;
}

/* Floating Elements */
.floating-elements {
    position: relative;
    height: 400px;
}

.floating-element {
    position: absolute;
    font-size: 3rem;
    color: var(--primary-color);
    animation: float 6s ease-in-out infinite;
    opacity: 0.7;
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    left: 70%;
    animation-delay: 1.5s;
}

.floating-element:nth-child(3) {
    top: 40%;
    left: 50%;
    animation-delay: 3s;
}

.floating-element:nth-child(4) {
    top: 80%;
    left: 30%;
    animation-delay: 4.5s;
}

/* Sections */
.section-padding {
    padding: 100px 0;
    position: relative;
}

.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-line {
    width: 100px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto;
    border-radius: 2px;
    animation: expandWidth 1s ease-out;
}

/* About Section */
.about-content h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.skills {
    margin-top: 2rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-name {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--card-bg);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
    transition: width 2s ease;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

.about-image {
    text-align: center;
}

.image-container {
    position: relative;
    display: inline-block;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: var(--card-bg);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary-color);
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    animation: float 6s ease-in-out infinite;
}

.image-placeholder:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

/* Portfolio Section */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    gap: 1rem;
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    font-weight: 600;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.portfolio-grid {
    margin-top: 2rem;
}

.portfolio-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-card);
    border-color: var(--primary-color);
}

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.portfolio-image .image-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 0;
    border: none;
    font-size: 3rem;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    color: white;
}

.overlay-content h4 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

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

/* Services Section */
.service-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

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

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    animation: iconFloat 3s ease-in-out infinite;
}

.service-card h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    border-color: var(--primary-color);
}

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

.contact-item h5 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.contact-form {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-control {
    background: var(--darker-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background: var(--darker-bg);
    border-color: var(--primary-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--darker-bg);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer p {
    color: var(--text-secondary);
    margin: 0;
}

/* Animaciones */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes glow {
    0% { filter: drop-shadow(0 0 5px var(--primary-color)); }
    100% { filter: drop-shadow(0 0 20px var(--primary-color)); }
}

@keyframes buttonGlow {
    0% { box-shadow: 0 0 10px rgba(0, 212, 255, 0.3); }
    100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.6); }
}

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

@keyframes twinkle {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

@keyframes slideInLeft {
    0% {
        opacity: 0;
        transform: translateX(-50px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes expandWidth {
    0% { width: 0; }
    100% { width: 100px; }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .floating-elements {
        height: 200px;
    }
    
    .floating-element {
        font-size: 2rem;
    }
    
    .portfolio-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 200px;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-item i {
        margin-right: 0;
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin-right: 0;
    }
    
    .image-placeholder {
        width: 250px;
        height: 250px;
        font-size: 3rem;
    }
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--darker-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}