/* =========================
   Variables & Setup
========================= */

:root {
  /* Main colors */
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1220;
  --bg-tertiary: #151927;
  
  /* Text */
  --text-primary: #e7e9ee;
  --text-secondary: #b7bdd1;
  --text-dim: #8892a6;
  
  /* Accents - Azul y Naranja */
  --accent-primary: #06b6d4;
  --accent-secondary: #ff6b35;
  --accent-gradient: linear-gradient(135deg, #06b6d4 0%, #ff6b35 100%);
  --accent-gradient-alt: linear-gradient(135deg, #ff6b35 0%, #06b6d4 100%);
  
  /* Cards and surfaces - MÁS TRANSPARENTE */
  --card-bg: rgba(15, 18, 32, 0.55);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover: rgba(255, 255, 255, 0.03);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.5);
  
  /* Spacing */
  --section-padding: 80px 24px;
  --container-max: 1200px;
  
  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* =========================
   Reset & Base
========================= */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Oxanium', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  
  /* Background with banner - MÁS TRANSPARENTE para ver el circuito */
  background: 
    linear-gradient(180deg, rgba(10, 14, 26, 0.85) 0%, rgba(10, 14, 26, 0.90) 100%),
    url('banner.png') center/cover no-repeat fixed;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* =========================
   Navigation
========================= */

.nav {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  
  display: flex;
  gap: 4px;
  padding: 8px;
  
  background: rgba(15, 18, 32, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.nav-link {
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--card-hover);
}

.nav-link.active {
  color: var(--text-primary);
  background: var(--accent-gradient);
}

/* =========================
   Hero Section
========================= */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 60px;
  position: relative;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  animation: fadeInUp 0.8s ease;
}

.avatar-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 32px;
}

.avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 4px solid var(--accent-primary);
  box-shadow: 
    0 0 0 8px rgba(6, 182, 212, 0.1),
    var(--shadow-xl);
  animation: float 3s ease-in-out infinite;
}

.avatar-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  background: var(--accent-gradient);
  opacity: 0.2;
  filter: blur(20px);
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  margin-bottom: 24px;
}

.greeting {
  display: block;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.name {
  display: block;
  font-size: 3.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
}

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

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

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 0.85rem;
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
}

/* =========================
   Sections
========================= */

.section {
  padding: var(--section-padding);
  position: relative;
}

.section-alt {
  background: rgba(15, 18, 32, 0.3);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 48px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 16px;
}

.title-number {
  font-size: 1.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* =========================
   About Section
========================= */

.about-grid {
  display: grid;
  gap: 48px;
}

.about-content {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.about-content.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.about-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 70ch;
}

.about-text.highlight {
  font-size: 1.15rem;
  color: var(--text-primary);
  font-weight: 500;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.highlight-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.highlight-item:hover {
  transform: translateY(-4px);
  border-color: var(--accent-secondary);
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
}

.highlight-icon {
  font-size: 2rem;
  line-height: 1;
}

.highlight-item h3 {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.highlight-item p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* =========================
   Skills Section
========================= */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.skill-category {
  padding: 32px;
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(30px);
}

.skill-category.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.skill-category:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-lg);
}

.skill-category:nth-child(even):hover {
  border-color: var(--accent-secondary);
  box-shadow: 0 8px 32px rgba(255, 107, 53, 0.3);
}

.category-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.category-icon {
  font-size: 1.8rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tag {
  padding: 8px 16px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.skill-tag:nth-child(even) {
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.2);
}

.skill-tag:nth-child(even):hover {
  background: rgba(255, 107, 53, 0.15);
  border-color: var(--accent-secondary);
}

/* =========================
   Projects Section
========================= */

.projects-grid {
  display: grid;
  gap: 32px;
}

.project-card {
  padding: 32px;
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(30px);
}

.project-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-xl);
}

.project-card:nth-child(even):hover {
  border-color: var(--accent-secondary);
  box-shadow: 0 16px 64px rgba(255, 107, 53, 0.4);
}

.project-card.featured {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, rgba(255, 107, 53, 0.05) 100%);
  border-color: rgba(6, 182, 212, 0.3);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.project-label {
  padding: 6px 12px;
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.project-card:nth-child(even) .project-label {
  background: rgba(255, 107, 53, 0.15);
  border: 1px solid rgba(255, 107, 53, 0.3);
  color: var(--accent-secondary);
}

.project-icon {
  width: 28px;
  height: 28px;
  opacity: 0.8;
  transition: all var(--transition-fast);
}

.project-icon:hover {
  opacity: 1;
  transform: scale(1.1);
}

.project-icon img {
  width: 100%;
  height: 100%;
  /* REMOVIDO EL FILTRO - Los iconos ahora mantienen sus colores originales */
}

.project-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.project-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.tech-tag {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-dim);
}

.project-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--accent-primary);
  transition: all var(--transition-fast);
}

.project-card:nth-child(even) .project-link {
  color: var(--accent-secondary);
}

.project-link:hover {
  gap: 12px;
}

.arrow {
  transition: transform var(--transition-fast);
}

.project-link:hover .arrow {
  transform: translateX(4px);
}

/* =========================
   Contact Section
========================= */

.contact-content {
  max-width: 900px;
  margin: 0 auto;
}

.contact-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 48px;
  line-height: 1.8;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.social-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(20px);
}

.social-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.social-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  background: var(--card-hover);
  box-shadow: var(--shadow-md);
}

.social-card:nth-child(even):hover {
  border-color: var(--accent-secondary);
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
}

.social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 182, 212, 0.1);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.social-card:nth-child(even) .social-icon {
  background: rgba(255, 107, 53, 0.1);
}

.social-icon img {
  width: 28px;
  height: 28px;
  /* REMOVIDO EL FILTRO - Los iconos ahora mantienen sus colores originales */
  opacity: 1;
}

.social-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.social-label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}

.social-handle {
  font-size: 0.9rem;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* =========================
   Footer
========================= */

.footer {
  padding: 40px 24px;
  text-align: center;
  border-top: 1px solid var(--card-border);
  background: rgba(10, 14, 26, 0.5);
}

.footer-content {
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer-copy {
  font-size: 0.95rem;
  color: var(--text-dim);
}

/* =========================
   Animations
========================= */

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

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

@keyframes pulse {
  0%, 100% {
    opacity: 0.2;
    transform: scale(1);
  }
  50% {
    opacity: 0.3;
    transform: scale(1.05);
  }
}

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

/* =========================
   Responsive
========================= */

@media (max-width: 768px) {
  .nav {
    flex-wrap: wrap;
    max-width: calc(100% - 32px);
  }
  
  .nav-link {
    padding: 8px 14px;
    font-size: 0.85rem;
  }

  .name {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .title-number {
    font-size: 1.2rem;
  }

  .hero {
    padding: 100px 16px 40px;
  }

  .avatar {
    width: 120px;
    height: 120px;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }

  .social-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 48px 16px;
  }

  .name {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.6rem;
    margin-bottom: 32px;
  }

  .project-card {
    padding: 24px;
  }

  .skill-category {
    padding: 24px;
  }
}