/*
===========================================================
  Portfolio Dinámico - Inspirado en zunedaalim.com
  Diseño minimalista, moderno y profesional
===========================================================
*/

/* IMPORTACIÓN DE FUENTES */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* VARIABLES CSS */
:root {
  /* Colores */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent: #00ff88;
  --accent-hover: #00cc6a;
  --border: #1a1a1a;
  
  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 8rem;
  
  /* Tipografía */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Transiciones */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode */
body.light-mode {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --text-primary: #0a0a0a;
  --text-secondary: #666666;
  --border: #e5e5e5;
}

/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: var(--transition);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

/* LOADING SCREEN */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loading-screen.hide {
  opacity: 0;
  pointer-events: none;
}

.loading-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.3em;
  color: var(--text-secondary);
  text-align: center;
}

.loading-bar-container {
  width: 200px;
  height: 2px;
  background-color: var(--border);
  margin-top: 2rem;
  overflow: hidden;
}

.loading-bar {
  height: 100%;
  width: 0%;
  background-color: var(--accent);
  transition: width 0.1s linear;
}

/* HEADER / NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 2rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background-color: transparent;
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  padding: 1.5rem 5%;
  border-bottom: 1px solid var(--border);
}

body.light-mode .navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-menu a {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  position: relative;
}

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

.nav-menu a:hover {
  color: var(--text-primary);
}

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

/* THEME TOGGLE */
.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: rotate(180deg);
}

/* HERO SECTION */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl) 5%;
  position: relative;
}

.hero-content {
  max-width: 1200px;
  width: 100%;
}

.hero-label {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #00d4ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-transform: uppercase;
}

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

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.btn-secondary {
  background-color: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* SECTIONS */
section {
  padding: var(--spacing-2xl) 5%;
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: var(--spacing-xl);
}

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 700px;
}

/* PROJECTS GRID */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-10px);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-image {
  width: 100%;
  height: 250px;
  background-color: var(--border);
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.project-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
}

/* Image link wrapper */
.project-image-link {
  display: block;
  position: relative;
  text-decoration: none;
}

/* Play overlay for videos */
.play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.project-image-link:hover .play-overlay {
  opacity: 1;
}

.play-icon {
  width: 70px;
  height: 70px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  padding-left: 5px;
  transform: scale(1);
  transition: all 0.3s ease;
  box-shadow: 0 10px 40px rgba(0, 255, 136, 0.3);
}

.project-image-link:hover .play-icon {
  transform: scale(1.1);
  box-shadow: 0 15px 60px rgba(0, 255, 136, 0.5);
}

.project-content {
  padding: 2rem;
}

.project-category {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tech-badge {
  padding: 0.4rem 0.8rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

.project-link {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.project-link:hover {
  color: var(--accent);
}

.project-link-primary {
  color: var(--accent);
  background: rgba(0, 255, 136, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  border: 1px solid var(--accent);
}

.project-link-primary:hover {
  background: var(--accent);
  color: var(--bg);
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 255, 136, 0.3);
}

/* SKILLS SECTION */
.skills-container {
  margin-top: 3rem;
}

.skills-category {
  margin-bottom: 3rem;
}

.skills-category h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
}

.skill-item {
  padding: 1.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
  transition: var(--transition);
}

.skill-item:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
}

.skill-name {
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
  margin-bottom: 0.5rem;
}

.skill-level {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: capitalize;
}

/* ABOUT SECTION */
.about-content {
  max-width: 800px;
  margin: 3rem auto;
}

.about-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.about-content strong {
  color: var(--text-primary);
}

/* CONTACT SECTION */
.contact-content {
  max-width: 800px;
  margin: 3rem auto;
  text-align: center;
}

.contact-list {
  list-style: none;
  margin-top: 2rem;
}

.contact-list li {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.contact-list a {
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-list a:hover {
  color: var(--accent);
}

/* FOOTER */
footer {
  padding: 3rem 5%;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.social-link {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-link:hover {
  border-color: var(--accent);
  background-color: var(--accent);
  color: var(--bg-primary);
  transform: translateY(-3px);
}

/* SCROLL ANIMATIONS */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* BACKGROUND CANVAS */
#bgCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.05;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .navbar {
    padding: 1.5rem 5%;
  }
  
  .nav-menu {
    display: none;
  }
  
  .hero {
    padding: var(--spacing-xl) 5%;
    min-height: 90vh;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  section {
    padding: var(--spacing-xl) 5%;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

/* SMOOTH SCROLLBAR */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 10px;
}

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