/* Reset y base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background: #ffffff;
  overflow-x: hidden;
}

/* Variables CSS */
:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --secondary: #64748b;
  --accent: #14b8a6;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-secondary: #f8fafc;
  --border: #e5e7eb;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #f1f5f9;
    --text-light: #94a3b8;
    --bg: #0f172a;
    --bg-secondary: #1e293b;
    --border: #334155;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.3), 0 1px 2px -1px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3),
      0 4px 6px -4px rgb(0 0 0 / 0.3);
  }
  body {
    background: var(--bg);
    color: var(--text);
  }
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: all 0.3s ease;
}
@media (prefers-color-scheme: dark) {
  .header {
    background: rgba(15, 23, 42, 0.95);
  }
}
.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}
@media (prefers-color-scheme: dark) {
  .header.scrolled {
    background: rgba(15, 23, 42, 0.98);
  }
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  position: relative;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}
.nav-brand .logo-space {
  /* width: 80px; */
  /* height: 23px; */
  width: 110px;
  height: 53px;
  /* background: var(--bg-secondary); */
  /* border-radius: 4px; */
  /* border: 2px dashed var(--border); */
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-light);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  margin: 0;
}
.nav-menu a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}
.nav-menu a:hover {
  color: var(--primary);
}
.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}
.nav-menu a:hover::after {
  width: 100%;
}

/* Language Selector */
.lang-selector {
  position: relative;
}
.lang-current {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text);
}
.lang-current:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.lang-current .flag {
  width: 20px;
  height: 15px;
  border-radius: 2px;
  overflow: hidden;
}
.lang-current .chevron {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}
.lang-selector.open .chevron {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
  z-index: 1001;
}
.lang-selector.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background 0.2s ease;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.lang-option:last-child {
  border-bottom: none;
}
.lang-option:hover {
  background: var(--bg-secondary);
}
.lang-option.active {
  background: var(--primary);
  color: white;
}
.lang-option .flag {
  width: 24px;
  height: 18px;
  border-radius: 3px;
  overflow: hidden;
}

/* Banderas SVG */
.flag {
  width: 20px;
  height: 15px;
  border-radius: 2px;
  display: inline-block;
  flex-shrink: 0;
  overflow: hidden;
}

.flag img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text);
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg);
    flex-direction: column;
    padding: 2rem 1rem;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    border-top: 1px solid var(--border);
  }
  .nav-menu.active {
    transform: translateX(0);
  }
  .nav-toggle {
    display: flex;
  }
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 0 4rem;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-secondary) 100%);
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--text);
}
.hero-text .greeting {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  color: var(--text-light);
  margin-bottom: 0.5rem;
}
.hero-text .name {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-text .title {
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
  color: var(--text-light);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}
.btn-secondary:hover {
  background: var(--text);
  color: var(--bg);
  transform: translateY(-2px);
}

.hero-avatar {
  display: flex;
  justify-content: center;
}
.avatar {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  font-weight: 700;
  color: white;
  box-shadow: var(--shadow-lg);
}

/* Sections */
.section {
  padding: 5rem 0;
}
.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text);
}
.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 4rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}
.skill-category {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}
.skill-category:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.skill-category h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text);
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.skill-tag {
  background: var(--bg-secondary);
  color: var(--text);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid var(--border);
}

/* Experience */
.timeline {
  position: relative;
  padding-left: 2rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}
.timeline-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: -2.5rem;
  top: 2rem;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--bg);
}
.timeline-item h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.timeline-item .company {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.timeline-item .period {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.timeline-item .description {
  color: var(--text-light);
  margin-bottom: 1rem;
}
.timeline-item .technologies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tech-tag {
  background: var(--primary);
  color: white;
  padding: 0.3rem 0.6rem;
  border-radius: 12px;
  font-size: 0.8rem;
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}
.project-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.project-card .project-content {
  padding: 2rem;
}
.project-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
}
.project-card .description {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}
.project-card .technologies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.project-card .actions {
  display: flex;
  gap: 1rem;
}
.project-card .btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

/* Education & Certifications */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}
.education-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
}
.education-item h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.education-item .institution {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.education-item .period {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.education-item .description {
  color: var(--text-light);
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}
.cert-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
}
.cert-item .name {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.cert-item .issuer {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}
.cert-item .year {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Contact */
.contact-content {
  max-width: 600px;
  margin: 0 auto;
}
.contact-form {
  display: grid;
  gap: 1.5rem;
}
.form-group {
  display: grid;
  gap: 0.5rem;
}
.form-group label {
  font-weight: 600;
  color: var(--text);
}
.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  text-align: center;
}
.footer-content {
  display: grid;
  gap: 2rem;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-text {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-actions {
    justify-content: center;
  }
  .timeline {
    padding-left: 1rem;
  }
  .timeline::before {
    left: 0;
  }
  .timeline-item::before {
    left: -1.5rem;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}