/* ==========================================================================
   Quantum Lab — Estilos de componentes y layout
   ========================================================================== */

*,
*::before,
*::after { box-sizing: border-box; }

/* Cursor personalizado (logotipo QL). Punto activo en la esquina superior izquierda.
   Se define la variable para reutilizarla y respetar el fallback si la imagen falla. */
:root { --cursor-ql: url("../assets/cursor-32.png") 0 0; }

html, body { cursor: var(--cursor-ql), auto; }
/* En elementos clicables mantiene el cursor QL con respaldo "pointer" */
a, button, [data-tab], .tab-link, .btn, .social-link, .nav__toggle, .card, .member, .event-card {
  cursor: var(--cursor-ql), pointer;
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--brand-teal); text-decoration: none; }
a:hover { color: var(--brand-cyan); }

:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--radius-sm); }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}

/* Utilidad: texto con degradado de marca */
.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.mono { font-family: var(--font-mono); }

/* ==========================================================================
   Barra de navegación
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--surface-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  color: var(--text);
}
.brand__logo {
  height: 180px;
  width: auto;
  border-radius: 8px;
}
.brand__name { font-size: 1.05rem; letter-spacing: -0.01em; }
.brand__name b { font-weight: 800; }

/* Tabs de navegación */
.tabs {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.tab-link {
  appearance: none;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-pill);
  cursor: var(--cursor-ql), pointer;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.tab-link:hover { color: var(--text); background: var(--bg-alt); }
.tab-link.is-active {
  color: #fff;
  background: var(--gradient-brand);
  box-shadow: var(--shadow-sm);
}

/* Botón hamburguesa (móvil) */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  cursor: var(--cursor-ql), pointer;
}
.nav__toggle span {
  width: 22px; height: 2px;
  background: var(--text);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Paneles de pestañas
   ========================================================================== */
.tab-panel { display: none; animation: fade-in 0.45s var(--ease); }
.tab-panel.is-active { display: block; }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section--alt { background: var(--bg-alt); }

.section__head { max-width: 720px; margin-bottom: 2.5rem; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--brand-teal);
  text-transform: lowercase;
  margin-bottom: 0.75rem;
}
.section__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  margin: 0 0 0.6rem;
  letter-spacing: -0.02em;
}
.section__desc { color: var(--text-muted); font-size: 1.08rem; margin: 0; }

/* ==========================================================================
   Hero (Inicio)
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--gradient-brand);
  color: var(--text-invert);
  padding-block: clamp(3.5rem, 9vw, 7rem);
}
/* patrón sutil de "qubits" */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 18% 30%, rgba(255,255,255,0.12) 0 2px, transparent 3px),
    radial-gradient(circle at 72% 20%, rgba(255,255,255,0.10) 0 2px, transparent 3px),
    radial-gradient(circle at 88% 66%, rgba(255,255,255,0.10) 0 2px, transparent 3px),
    radial-gradient(circle at 40% 80%, rgba(255,255,255,0.08) 0 2px, transparent 3px);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; max-width: 780px; }
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: var(--radius-pill);
  margin-bottom: 1.4rem;
}
.hero__badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--brand-cyan-soft);
  box-shadow: 0 0 0 4px rgba(99, 214, 204, 0.25);
}
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 1.1rem;
}
.hero h1 .accent { color: var(--brand-cyan-soft); }
.hero p { font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: rgba(234, 252, 250, 0.9); margin: 0 0 2rem; max-width: 620px; }

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.8rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius-pill);
  cursor: var(--cursor-ql), pointer;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: #fff; color: var(--brand-navy); box-shadow: var(--shadow-md); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.btn--ghost:hover { background: rgba(255,255,255,0.12); color: #fff; }

/* Métricas debajo del hero */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-top: 3rem;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 1.3rem 1.4rem;
  box-shadow: var(--shadow-sm);
}
.stat__num { font-size: 1.9rem; font-weight: 800; letter-spacing: -0.02em; }
.stat__label { color: var(--text-muted); font-size: 0.95rem; }

/* Bloque de "qué hacemos" */
.activities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
  margin-top: 1rem;
}
.activity {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
}
.activity h3 { margin: 0.2rem 0 0.5rem; font-size: 1.15rem; }
.activity p { margin: 0; color: var(--text-muted); }

/* ==========================================================================
   Grid de tarjetas (Áreas)
   ========================================================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
}
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 1.9rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card:hover::before { transform: scaleX(1); }

.card__icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: var(--radius-md);
  background: var(--gradient-brand-soft);
  color: #eafcfa;
  margin-bottom: 1.1rem;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { margin: 0 0 0.55rem; font-size: 1.3rem; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-muted); }
.card__tag {
  display: inline-block;
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--brand-teal);
  background: color-mix(in srgb, var(--brand-cyan) 12%, transparent);
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
}

/* ==========================================================================
   Equipo (Personas)
   ========================================================================== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 1.2rem;
}
.member {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.2rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.member:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.avatar {
  width: 76px; height: 76px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  background: var(--gradient-brand);
  box-shadow: var(--shadow-sm);
}
.member__name { font-weight: 700; font-size: 1.1rem; }
.member__role { color: var(--text-muted); font-size: 0.9rem; font-family: var(--font-mono); }

/* ==========================================================================
   Eventos
   ========================================================================== */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.4rem;
}
.event-card {
  display: flex;
  gap: 1.3rem;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.event-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }

.event-card__date {
  flex-shrink: 0;
  width: 84px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.1rem;
  padding: 0.9rem 0.5rem;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  color: #fff;
  text-align: center;
}
.event-card__day { font-size: 1.9rem; font-weight: 800; line-height: 1; }
.event-card__month { font-family: var(--font-mono); text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.06em; }
.event-card__year { font-size: 0.78rem; opacity: 0.8; }

.event-card__body { display: flex; flex-direction: column; justify-content: center; }
.event-card__body h3 { margin: 0 0 0.35rem; font-size: 1.2rem; letter-spacing: -0.01em; }
.event-card__loc {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--brand-teal);
}
.event-card__desc { margin: 0; color: var(--text-muted); }

/* ==========================================================================
   Contacto
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}
.contact-card {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.contact-card .card__icon { margin-bottom: 0; flex-shrink: 0; }
/* El contenedor del texto debe poder encogerse para que el texto no se desborde */
.contact-card > div:last-child { min-width: 0; }
.contact-card h3 { margin: 0.15rem 0 0.4rem; font-size: 1.15rem; letter-spacing: -0.01em; }
.contact-card p, .contact-card address {
  margin: 0; color: var(--text-muted); font-style: normal;
  line-height: 1.6; overflow-wrap: break-word;
}
.contact-card a { font-weight: 600; overflow-wrap: break-word; }

/* Tarjeta de redes sociales (ocupa el ancho completo del grid) */
.contact-card--social { grid-column: 1 / -1; }

/* En pantallas pequeñas, una sola columna */
@media (max-width: 620px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.social-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1rem 0 0;
  padding: 0;
}
.social-link {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--surface-border);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}
.social-link svg { width: 22px; height: 22px; }
.social-link:hover {
  color: #fff;
  background: var(--gradient-brand);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Pie de página
   ========================================================================== */
.footer {
  background: var(--brand-navy);
  color: var(--text-invert);
  padding-block: 2.4rem;
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer__brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; }
.footer__brand img { height: 34px; border-radius: 6px; background: #fff; padding: 3px; }
.footer small { color: rgba(234, 252, 250, 0.7); }
.footer .mono { color: var(--brand-cyan-soft); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 780px) {
  .nav__toggle { display: flex; }
  .tabs {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    padding: 0.8rem clamp(1.1rem, 4vw, 2rem) 1.2rem;
    background: var(--surface);
    border-bottom: 1px solid var(--surface-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  }
  .nav.is-open .tabs { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .tab-link { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
}