/* ---------- Buttons ---------- */
.btn {
  --btn-fg: #fff;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  cursor: pointer;
  isolation: isolate;
  transition: transform var(--dur-fast) var(--ease-spring),
              box-shadow var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.btn:active { transform: scale(0.96); }

.btn-primary {
  color: var(--btn-fg);
  background: var(--gradient-action);
  background-size: 200% 200%;
  box-shadow: var(--glow-primary);
}
.btn-primary:hover {
  transform: translateY(-3px);
  animation: gradient-shift 3s var(--ease-in-out) infinite;
  box-shadow: 0 12px 32px rgba(79, 124, 255, 0.4);
}

.btn-ghost {
  color: var(--text-primary);
  background: transparent;
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--primary-2);
  color: var(--primary-2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.btn-icon {
  width: 44px; height: 44px;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-spring), border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.btn-icon:hover { transform: translateY(-2px) rotate(-6deg); border-color: var(--primary-2); }
.btn-icon svg { width: 20px; height: 20px; stroke: var(--text-primary); transition: stroke var(--dur-base) var(--ease-out); }
/* icono del tema segun data-theme (sin depender de JS para el primer pintado) */
.btn-icon .icon-moon { display: none; }
:root[data-theme='light'] .btn-icon .icon-sun { display: none; }
:root[data-theme='light'] .btn-icon .icon-moon { display: block; }

/* ---------- Nav ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  backdrop-filter: blur(16px) saturate(140%);
  background: var(--bg-overlay);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-slow) var(--ease-in-out);
}
.site-header.is-scrolled { border-color: var(--border); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* el ancho y el gutter lateral vienen de .container */
}

.logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-1);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gradient-action);
  color: #fff;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-weight: 600;
  box-shadow: var(--glow-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--step--1);
}
.nav-links a {
  position: relative;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  transition: color var(--dur-base) var(--ease-out);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  height: 2px; width: 0;
  background: var(--gradient-brand);
  transition: width var(--dur-base) var(--ease-out);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute; left: 12px; top: 21px; width: 20px; height: 2px;
  background: var(--text-primary); transition: transform var(--dur-base) var(--ease-in-out), opacity var(--dur-base);
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ''; position: absolute; left: 0; width: 20px; height: 2px;
  background: var(--text-primary); transition: transform var(--dur-base) var(--ease-in-out), opacity var(--dur-base);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span::after { transform: translateY(-6px) rotate(-45deg); }

/* Lang toggle */
.lang-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: var(--step--2);
}
.lang-toggle button {
  padding: 0.5rem 0.75rem;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  transition: background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}
.lang-toggle button.is-active {
  background: var(--gradient-action);
  color: #fff;
}

/* ---------- Badges / tags ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--text-secondary);
  background: var(--bg-elevated);
}
.tag .bullet { width: 6px; height: 6px; border-radius: 50%; background: var(--primary-2); }

/* ---------- Cards ---------- */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
/* capa de composicion solo mientras se inclina (tilt.js) */
.tilt:hover { will-change: transform; }
.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.project-card {
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-brand);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.project-card:hover::before { opacity: 1; }

.project-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-6);
  align-items: center;
}

.project-visual {
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  background: var(--gradient-radial), var(--bg-elevated-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* Gráfico apaisado de app móvil (1024×500): se muestra completo, sin recortar el texto */
.project-visual--wide { aspect-ratio: 1024 / 500; }

/* Las miniaturas de las tarjetas llenan su recuadro */
.project-visual img { width: 100%; height: 100%; object-fit: cover; }
.tools-more { display: flex; justify-content: center; margin-top: var(--space-6); }

/* Botón de salida de la sección Proyectos: más grande y con brillo, para que se note entre las tarjetas */
.btn-lg {
  padding: 1.15rem 2.6rem;
  font-size: var(--step-0);
  box-shadow: var(--glow-primary), 0 14px 34px -12px rgba(79, 124, 255, 0.6);
}
.btn-arrow { display: inline-block; transition: transform var(--dur-base) var(--ease-out); }
.btn-lg:hover .btn-arrow, .btn-lg:focus-visible .btn-arrow { transform: translateX(6px); }
@media (prefers-reduced-motion: reduce) {
  .btn-arrow { transition: none; }
  .btn-lg:hover .btn-arrow, .btn-lg:focus-visible .btn-arrow { transform: none; }
}

.stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.project-links { display: flex; gap: var(--space-3); margin-top: var(--space-4); }
.project-links a {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--primary-2);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), gap var(--dur-base);
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
}
.project-links a:hover { border-color: currentColor; }

/* h3 de tarjetas: mantienen la escala visual de h4 (la jerarquia semantica no salta niveles) */
.domain-card h3,
.timeline-item h3 { font-size: var(--step-2); }

/* ---------- Skill pills / domain grid ---------- */
.domain-card {
  padding: var(--space-5);
}
.domain-card .icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-brand);
  margin-bottom: var(--space-4);
  box-shadow: var(--glow-primary);
}
.domain-card .icon svg { stroke: #fff; width: 24px; height: 24px; }

/* ---------- Timeline ---------- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  border-left: 1px solid var(--border);
  padding-left: var(--space-6);
}
.timeline-item {
  position: relative;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-6) - 6px);
  top: var(--space-6);
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--primary-2);
}
.timeline-date {
  color: var(--primary-2);
  font-size: var(--step--1);
  margin-bottom: var(--space-2);
}
.timeline-company {
  color: var(--text-muted);
  font-size: var(--step--1);
  margin-bottom: var(--space-3);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}
.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  /* relleno lateral reducido: el email (≈183 px) debe caber en una línea con 4 columnas */
  padding-inline: var(--space-4);
  text-align: left;
}
.contact-card > div {
  min-width: 0;
  flex: 1;
}
.contact-card p {
  overflow-wrap: break-word;
  font-size: var(--step--1);
}
.contact-card .icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--bg-elevated-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform var(--dur-base) var(--ease-spring), background var(--dur-base);
}
.contact-card:hover .icon { transform: scale(1.1) rotate(8deg); background: var(--gradient-brand); }
.contact-card:hover .icon svg { stroke: #fff; }
.contact-card .icon svg { stroke: var(--text-primary); width: 22px; height: 22px; transition: stroke var(--dur-base); }

/* ---------- Utilidades de texto (sustituyen estilos inline) ---------- */
.section-eyebrow.eyebrow-tight { margin-bottom: var(--space-2); }
.contact-label { color: var(--text-muted); }
.contact-value { margin: 0; color: var(--text-primary); }

/* scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 10px; }