:root {
  --bg: #030712;
  /* Un negro más profundo */
  --panel: rgba(17, 24, 39, 0.7);
  --text: #f3f4f6;
  --muted: #9ca3af;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #3b82f6;
  /* Azul brillante */
  --accent-glow: rgba(59, 130, 246, 0.5);
  --radius: 20px;
  --container: 1100px;
}

body {
  background-color: var(--bg);
  /* Efecto de luces de fondo (Glow) */
  background-image:
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(147, 51, 234, 0.15) 0px, transparent 50%);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  /* Asegúrate de importar Inter o usar una similar */
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin: 0 auto;
}

.section {
  padding: 72px 0;
}

.hero {
  padding: 96px 0 72px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(11, 12, 16, 0.7);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  letter-spacing: 0.2px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(122, 162, 255, 0.16);
}

.nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  padding: 8px 10px;
  border-radius: 12px;
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-links a {
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 12px;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  transition: transform 120ms ease, background 120ms ease, border 120ms ease;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* Animación sutil para los botones */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  font-weight: 600;
  box-shadow: 0 4px 14px 0 var(--accent-glow);
}

.btn-primary:hover {
  background: #2563eb;
  transform: scale(1.05);
}

.btn-ghost {
  background: transparent;
}

.btn-small {
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 0.95rem;
}

.kicker {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
}

.headline {
  margin-top: 16px;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  /* Más grande */
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(to right, #fff 20%, var(--accent) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subhead {
  margin-top: 12px;
  max-width: 64ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.meta {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pill {
  border: 1px solid var(--line);
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.pill:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.muted {
  color: var(--muted);
}

.card {
  background: var(--panel);
  backdrop-filter: blur(12px);
  /* El toque mágico */
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 10px 40px -10px var(--accent-glow);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.cards-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.tags {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-size: 0.95rem;
}

.muted-tag {
  color: var(--muted);
}

.list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.list li {
  color: var(--muted);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.project-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.badge {
  font-size: 0.85rem;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  padding: 5px 9px;
  border-radius: 999px;
}

.project-actions {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.contact-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 22px 0;
  background: rgba(11, 12, 16, 0.6);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 10px 12px;
  border-radius: 12px;
}

.skip-link:focus {
  left: 10px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Responsive */
@media (max-width: 980px) {
  .cards-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    right: 1rem;
    top: 64px;
    width: min(320px, calc(100% - 2rem));
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: rgba(17, 19, 26, 0.92);
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
  }

  .header-inner {
    align-items: flex-start;
  }

  .header-actions {
    flex-wrap: wrap;
  }

  .cards-3 {
    grid-template-columns: 1fr;
  }

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

.about-image {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto;
}