@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&family=Inter:wght@300;400;500;600&display=swap");

/* ─── Variables ────────────────────────────────────────────────────────── */
:root {
  --bg-primary:    #0f1923;
  --bg-secondary:  #1a2527;
  --bg-card:       #233337;
  --accent:        #4c9eb0;
  --accent-hover:  #5ab8cc;
  --accent-dim:    rgba(76, 158, 176, 0.15);
  --text-primary:  #f0f4f8;
  --text-muted:    #8da5b0;
  --border:        rgba(76, 158, 176, 0.25);
  --font-mono:     'JetBrains Mono', monospace;
  --font-body:     'Inter', sans-serif;
  --radius:        12px;
  --shadow:        0 8px 32px rgba(0,0,0,0.35);
  --transition:    0.3s ease;
  --max-w:         1100px;
  --header-h:      70px;
}

/* ─── Reset & Base ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ─── Scroll reveal ────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── Header ───────────────────────────────────────────────────────────── */
.contenedor-header {
  background: rgba(15, 25, 35, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 999;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.contenedor-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.contenedor-header header {
  max-width: var(--max-w);
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: var(--header-h);
}
.logo a {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
}
.logo a span { color: var(--text-primary); }

nav ul { display: flex; align-items: center; gap: 4px; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--accent-dim);
}
.nav-link.active { color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-toggle { display: flex; gap: 4px; }
.lang-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  transition: all var(--transition);
}
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }
.lang-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.nav-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 6px;
  display: none;
  font-size: 18px;
}

/* ─── Hero ─────────────────────────────────────────────────────────────── */
.inicio {
  min-height: 100vh;
  background:
    linear-gradient(to bottom, rgba(15,25,35,0.7) 0%, rgba(15,25,35,1) 100%),
    url(../img/bg/computadoras.jpg) center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--header-h);
}
.hero-inner {
  text-align: center;
  padding: 40px 20px;
  max-width: 700px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 28px;
}
.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-avatar {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  margin: 0 auto 24px;
  object-fit: cover;
  box-shadow: 0 0 0 6px var(--accent-dim);
}
.hero-greeting {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--accent);
  margin-bottom: 8px;
}
.hero-name {
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero-role {
  font-size: 18px;
  color: var(--text-muted);
  min-height: 28px;
  margin-bottom: 36px;
}
#typewriter {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 600;
}
#typewriter::after {
  content: '|';
  animation: blink 0.7s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: background var(--transition), transform var(--transition);
  border: 2px solid var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  border: 2px solid var(--border);
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.hero-socials { display: flex; gap: 12px; justify-content: center; }
.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 17px;
  transition: all var(--transition);
}
.social-icon:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* ─── Section base ─────────────────────────────────────────────────────── */
section { padding: 90px 20px; }
.section-inner { max-width: var(--max-w); margin: auto; }
.section-title {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 12px auto 0;
}

/* ─── About ────────────────────────────────────────────────────────────── */
.sobremi { background: var(--bg-secondary); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
}
.about-description {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 30px;
}
.about-description strong { color: var(--accent); }
.about-info { margin-bottom: 30px; }
.about-info h3 {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--accent);
  margin-bottom: 16px;
}
.info-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 14px;
}
.info-list .label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  min-width: 100px;
  font-weight: 600;
}
.role-badge {
  background: var(--accent);
  color: #fff;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
}
.achievements-title {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--accent);
  margin-bottom: 16px;
}
.achievements-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 28px;
}
.achievement-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition), transform var(--transition);
}
.achievement-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.achievement-card i {
  font-size: 22px;
  color: var(--accent);
}
.achievement-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  overflow: hidden;
  position: relative;
  transition: color var(--transition);
}
.btn-download::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: translateX(-100%);
  transition: transform 0.35s ease;
  z-index: 0;
}
.btn-download:hover::before { transform: translateX(0); }
.btn-download:hover { color: #fff; }
.btn-download span, .btn-download i { position: relative; z-index: 1; }

/* ─── Skills ───────────────────────────────────────────────────────────── */
.skills { background: var(--bg-primary); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.skills-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.skills-group-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.skill-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.skill-item:last-child { border-bottom: none; }
.skill-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}
.skill-name {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

/* ─── Timeline (Curriculum) ────────────────────────────────────────────── */
.curriculum { background: var(--bg-secondary); }
.timeline-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.timeline-col-title {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.timeline-col-title i { font-size: 18px; }
.timeline-list { position: relative; padding-left: 24px; }
.timeline-list::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 28px;
}
.timeline-marker {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.timeline-period {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.5px;
}
.timeline-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 6px 0 4px;
  color: var(--text-primary);
}
.timeline-org {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  display: block;
  margin-bottom: 10px;
}
.timeline-content p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 10px;
  line-height: 1.6;
}
.timeline-content ul { padding-left: 16px; list-style: disc; }
.timeline-content ul li {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
  line-height: 1.5;
}

/* ─── Projects ─────────────────────────────────────────────────────────── */
.portfolio { background: var(--bg-primary); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.project-img-wrap { position: relative; overflow: hidden; aspect-ratio: 16/9; }

/* ── Carousel ── */
.carousel-wrap {
  position: relative;
  width: 100%;
  height: 100%;
}
.carousel-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.carousel-wrap img.active { opacity: 1; }
.project-card:hover .carousel-wrap img.active { transform: scale(1.03); transition: opacity 0.6s ease, transform 0.5s ease; }
.carousel-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 3;
}
.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.carousel-dot.active { background: var(--accent); transform: scale(1.3); }
.carousel-dot:hover { background: rgba(255,255,255,0.7); }
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 25, 35, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: opacity 0.35s ease;
}
.project-card:hover .project-overlay { opacity: 1; }
.btn-project {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  transition: background var(--transition);
}
.btn-project:hover { background: var(--accent-hover); }
.btn-project.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.4);
}
.btn-project.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-project.btn-coming { background: var(--bg-secondary); color: var(--text-muted); cursor: default; }
.project-info { padding: 20px; }
.project-info h3 {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.project-info p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  background: var(--accent-dim);
  border: 1px solid var(--border);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
}

/* ─── Contact ──────────────────────────────────────────────────────────── */
.contacto {
  background: var(--bg-secondary);
  background-image: url(../img/bg/contacto.png);
  background-blend-mode: overlay;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
}
.contact-form { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; }
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.field input, .field textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 16px;
  transition: border-color var(--transition);
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.field input.input-error { border-color: #f87171; }
.field-error {
  font-size: 12px;
  color: #f87171;
  margin-top: 4px;
  min-height: 18px;
}
#contact-btn {
  width: 100%;
  background: var(--accent);
  color: #fff;
  padding: 14px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background var(--transition), opacity var(--transition);
}
#contact-btn:hover { background: var(--accent-hover); }
#contact-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

.contact-info { padding: 20px 0; }
.contact-info-title {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}
.contact-info-sub { color: var(--text-muted); font-size: 15px; margin-bottom: 32px; line-height: 1.6; }
.contact-detail {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.contact-detail-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 18px;
  flex-shrink: 0;
}
.contact-detail-text { font-size: 14px; color: var(--text-muted); }
.contact-detail-text strong { display: block; color: var(--text-primary); font-size: 15px; margin-bottom: 2px; }
.contact-socials { display: flex; gap: 12px; margin-top: 32px; }

/* ─── Toast ────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 22px;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow);
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  z-index: 9999;
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast--success { border-color: #4ade80; }
.toast--success i { color: #4ade80; }
.toast--error { border-color: #f87171; }
.toast--error i { color: #f87171; }

/* ─── Footer ───────────────────────────────────────────────────────────── */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 40px 20px 28px;
  text-align: center;
}
.footer-inner { max-width: var(--max-w); margin: auto; }
.footer-logo {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
}
.footer-socials { display: flex; gap: 12px; justify-content: center; margin-bottom: 28px; }
.footer-meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-meta i { color: #f87171; }
.back-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 18px;
  margin-bottom: 20px;
  transition: background var(--transition), transform var(--transition);
}
.back-top:hover { background: var(--accent-hover); transform: translateY(-3px); }

/* ─── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  nav { display: none; }
  nav.responsive {
    display: block;
    position: absolute;
    top: var(--header-h);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0 0 0 var(--radius);
    min-width: 200px;
  }
  nav.responsive ul { flex-direction: column; padding: 8px 0; }
  nav.responsive ul li { border-bottom: 1px solid var(--border); }
  nav.responsive .nav-link { display: block; padding: 12px 20px; border-radius: 0; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .skills-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .timeline-cols { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .section-title { margin-bottom: 40px; }
}
@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .hero-name { font-size: 28px; }
  .toast { left: 16px; right: 16px; bottom: 16px; }
}