:root {
  --fondo: #0b0f14;
  --fondo-2: #0f151c;
  --panel: #131b24;
  --panel-2: #18222d;
  --borde: #233040;
  --texto: #e7edf3;
  --suave: #93a1b2;
  --ambar: #ffb547;
  --ambar-2: #ffd27a;
  --verde: #4fe0b0;
  --rojo: #ff6b6b;
  --violeta: #9b8cff;
  --radio: 14px;
  --sombra: 0 10px 30px rgba(0, 0, 0, 0.35);
  --titulos: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body {
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
a { color: var(--ambar-2); }
code, .mono { font-family: ui-monospace, 'Cascadia Code', Menlo, Consolas, monospace; font-size: 0.92em; }
code { background: rgba(255, 181, 71, 0.08); padding: 0.05em 0.35em; border-radius: 5px; }
h1, h2, h3 { font-family: var(--titulos); line-height: 1.15; margin: 0; }
button, input, select { font: inherit; color: inherit; }

/* ------------------------------------------------------------------ barra */
.barra {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px max(16px, env(safe-area-inset-left)) 10px max(16px, env(safe-area-inset-right));
  background: rgba(11, 15, 20, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(35, 48, 64, 0.7);
}
.marca { font-family: var(--titulos); font-weight: 700; color: var(--texto); text-decoration: none; white-space: nowrap; }
.logo { display: inline-block; transform: rotate(-20deg); }
.barra nav { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.barra nav a { color: var(--suave); text-decoration: none; padding: 6px 9px; border-radius: 8px; font-size: 0.93rem; white-space: nowrap; }
.barra nav a:hover { color: var(--texto); background: var(--panel); }

/* ------------------------------------------------------------------ hero */
.hero {
  position: relative;
  padding: 56px 16px 32px;
  max-width: 1180px; margin: 0 auto;
  display: grid; gap: 28px;
}
.hero::before {
  content: ''; position: absolute; inset: -40px 0 auto; height: 420px; z-index: -1;
  background:
    radial-gradient(420px 260px at 15% 30%, rgba(255, 181, 71, 0.16), transparent 70%),
    radial-gradient(380px 240px at 85% 20%, rgba(79, 224, 176, 0.10), transparent 70%);
}
.ceja { color: var(--ambar); font-weight: 600; font-size: 0.85rem; letter-spacing: 0.02em; margin: 0 0 12px; }
.hero h1 { font-size: clamp(2.2rem, 7vw, 4rem); letter-spacing: -0.02em; }
.hero h1 em { font-style: normal; color: var(--ambar); display: block; }
.entrada { color: var(--suave); font-size: 1.08rem; max-width: 36rem; margin: 18px 0 24px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 11px 18px; border-radius: 999px; border: 1px solid var(--borde);
  background: var(--panel); color: var(--texto); text-decoration: none; font-weight: 600; cursor: pointer;
}
.boton:hover { border-color: var(--ambar); }
.boton.primario, button.primario { background: var(--ambar); color: #1a1205; border-color: var(--ambar); }
.boton.primario:hover { background: var(--ambar-2); }
.cifras { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.cifras li { display: flex; align-items: baseline; gap: 12px; padding: 14px 16px; background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); }
.cifras b { font-family: var(--titulos); font-size: 1.8rem; color: var(--ambar); min-width: 2.6ch; }
.cifras span { color: var(--suave); }

/* ------------------------------------------------------------------ secciones */
.seccion { max-width: 1180px; margin: 0 auto; padding: 40px 16px; }
.titulo-seccion { margin-bottom: 18px; max-width: 46rem; }
.titulo-seccion h2 { font-size: clamp(1.6rem, 4.5vw, 2.3rem); margin-bottom: 8px; }
.titulo-seccion p { color: var(--suave); margin: 0; }
.panel { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 16px; min-width: 0; }
.panel h3 { font-size: 1.1rem; margin-bottom: 12px; }
.nota { color: var(--suave); font-size: 0.85rem; margin: 10px 0 0; }

/* ------------------------------------------------------------------ laboratorio */
.lab { display: grid; gap: 16px; }
.arena-col, .cerebro-col { min-width: 0; }
.estado-mosca {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 14px;
  background: var(--panel); border: 1px solid var(--borde); border-bottom: 0;
  border-radius: var(--radio) var(--radio) 0 0; padding: 10px 12px;
}
.quien { display: flex; align-items: center; gap: 10px; min-width: 0; }
.quien .nombre {
  background: transparent; border: 1px dashed transparent; border-radius: 8px; padding: 2px 6px;
  font-family: var(--titulos); font-weight: 700; font-size: 1.05rem; width: 12ch; field-sizing: content; min-width: 6ch;
}
.quien .nombre:hover, .quien .nombre:focus { border-color: var(--borde); outline: none; }
.accion { color: var(--ambar-2); font-weight: 600; font-size: 0.95rem; white-space: nowrap; }
.accion[data-accion="huir"] { color: var(--rojo); }
.medidores { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.medidor { display: inline-flex; align-items: center; gap: 4px; }
.medidor i { font-style: normal; font-size: 0.9rem; }
.barra-m { width: 46px; height: 6px; background: var(--panel-2); border-radius: 4px; overflow: hidden; display: inline-block; }
.barra-m span { display: block; height: 100%; width: 0; background: var(--ambar); transition: width 0.3s; }
#m-sueno { background: var(--violeta); }
#m-susto { background: var(--rojo); }
.hora { color: var(--suave); font-size: 0.88rem; font-variant-numeric: tabular-nums; }
.arena-marco {
  position: relative; aspect-ratio: 1 / 1.08; width: 100%;
  border: 1px solid var(--borde); overflow: hidden; background: #0b1118;
}
#arena { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: crosshair; touch-action: manipulation; }
.aviso {
  position: absolute; left: 50%; bottom: 12px; transform: translate(-50%, 8px);
  max-width: calc(100% - 24px); width: max-content;
  padding: 8px 14px; border-radius: 999px; background: rgba(10, 14, 20, 0.88); border: 1px solid var(--borde);
  font-size: 0.92rem; text-align: center; opacity: 0; pointer-events: none; transition: opacity 0.25s, transform 0.25s;
}
.aviso.ver { opacity: 1; transform: translate(-50%, 0); }
.herramientas {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(54px, 1fr)); gap: 6px; padding: 10px;
  background: var(--panel); border: 1px solid var(--borde); border-top: 0;
}
.herramientas button {
  display: flex; flex-direction: column; align-items: center; gap: 2px; min-width: 0;
  padding: 8px 2px; border-radius: 10px; border: 1px solid var(--borde);
  background: var(--panel-2); cursor: pointer; font-size: 0.78rem; color: var(--suave);
}
.herramientas button span { font-size: 1.35rem; line-height: 1; }
.herramientas button:hover { color: var(--texto); border-color: #34475e; }
.herramientas button[aria-pressed="true"] { border-color: var(--ambar); color: var(--texto); background: rgba(255, 181, 71, 0.14); }
.herramientas .premio:active { background: rgba(79, 224, 176, 0.2); }
.herramientas .castigo:active { background: rgba(255, 107, 107, 0.2); }
.herramientas .sep { display: none; }
.herramientas .premio { border-color: rgba(79, 224, 176, 0.45); }
.herramientas .castigo { border-color: rgba(255, 107, 107, 0.45); }
.controles {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--borde); border-top: 0; border-radius: 0 0 var(--radio) var(--radio);
  padding: 8px 10px;
}
.velocidad { display: inline-flex; border: 1px solid var(--borde); border-radius: 10px; overflow: hidden; }
.velocidad button { background: transparent; border: 0; padding: 6px 12px; cursor: pointer; color: var(--suave); }
.velocidad button[aria-pressed="true"] { background: rgba(255, 181, 71, 0.16); color: var(--texto); }
.reloj { color: var(--suave); font-size: 0.9rem; display: inline-flex; align-items: center; gap: 8px; }
select, input:not([type="checkbox"]):not([type="file"]) {
  background: var(--fondo-2); border: 1px solid var(--borde); border-radius: 10px; padding: 7px 10px; min-width: 0;
}
input:focus, select:focus, button:focus-visible, a:focus-visible { outline: 2px solid var(--ambar); outline-offset: 1px; }
.cerebro-col { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 10px; display: flex; flex-direction: column; }
#cerebro { width: 100%; aspect-ratio: 1000 / 720; display: block; cursor: pointer; touch-action: manipulation; }
.info-region { color: var(--suave); font-size: 0.92rem; padding: 8px 6px 2px; min-height: 4.6em; }
.info-region b { color: var(--texto); }
.paneles { display: grid; gap: 16px; margin-top: 16px; }
.aprendido { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.aprendido li { display: grid; grid-template-columns: minmax(0, 8.5rem) 1fr auto 3.2rem; align-items: center; gap: 10px; font-size: 0.9rem; }
.olor-nombre { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.olor-nombre::before { content: ''; display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--c); margin-right: 7px; }
.val { position: relative; height: 8px; background: var(--panel-2); border-radius: 4px; }
.val::after { content: ''; position: absolute; left: 50%; top: -3px; bottom: -3px; width: 1px; background: #3a4a5e; }
.val .pos, .val .neg { position: absolute; top: 0; bottom: 0; border-radius: 4px; transition: width 0.4s; }
.val .pos { left: 50%; background: var(--verde); }
.val .neg { right: 50%; background: var(--rojo); }
.comps { display: inline-flex; gap: 3px; }
.comps i { width: 5px; height: 14px; border-radius: 2px; }
.num { font-variant-numeric: tabular-nums; color: var(--suave); text-align: right; }
.misiones { margin: 0; padding: 0; list-style: none; counter-reset: m; display: grid; gap: 6px; }
.misiones li { counter-increment: m; padding: 8px 10px 8px 38px; border-radius: 10px; position: relative; color: var(--suave); }
.misiones li::before {
  content: counter(m); position: absolute; left: 8px; top: 8px; width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center; font-size: 0.75rem; background: var(--panel-2); border: 1px solid var(--borde);
}
.misiones li.hecha { color: var(--verde); }
.misiones li.hecha::before { background: rgba(79, 224, 176, 0.18); border-color: var(--verde); }
.misiones li.actual { background: rgba(255, 181, 71, 0.08); border: 1px solid rgba(255, 181, 71, 0.35); color: var(--texto); }
.misiones li.actual::before { border-color: var(--ambar); color: var(--ambar); }
.misiones li span { display: block; font-size: 0.9rem; color: var(--suave); margin-top: 2px; }

/* ------------------------------------------------------------------ utilidades */
.chico, button.chico {
  padding: 6px 12px; border-radius: 10px; border: 1px solid var(--borde); background: var(--panel-2);
  cursor: pointer; font-size: 0.88rem; color: var(--texto); text-decoration: none; display: inline-flex; align-items: center;
}
.chico:hover { border-color: #3a4f68; }
.chico.peligro { color: var(--rojo); }
.fila { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 6px; }
.aviso-trabajo { margin-top: 16px; padding: 14px 16px; border-radius: var(--radio); border: 1px dashed var(--borde); color: var(--suave); font-size: 0.92rem; }
.aviso-trabajo p { margin: 0; }
.aviso-trabajo b { color: var(--texto); }
.memoria-fila { margin-top: 10px; }


/* ------------------------------------------------------------------ ciencia */
.ciencia-grid { display: grid; gap: 14px; }
.tarjeta { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 16px; }
.tarjeta h3 { font-size: 1.05rem; margin-bottom: 8px; }
.tarjeta p { margin: 0; color: var(--suave); }
.tarjeta b { color: var(--texto); }
.tabla-envoltura { overflow-x: auto; margin-top: 18px; border: 1px solid var(--borde); border-radius: var(--radio); }
.comparacion { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 480px; }
.comparacion caption { text-align: left; padding: 12px 14px 4px; font-family: var(--titulos); font-weight: 700; }
.comparacion th, .comparacion td { padding: 9px 14px; text-align: left; border-top: 1px solid var(--borde); }
.comparacion th { color: var(--suave); font-weight: 600; }
.comparacion td:last-child { color: var(--ambar-2); }
.pie { text-align: center; padding: 30px 16px 40px; color: var(--suave); border-top: 1px solid var(--borde); margin-top: 30px; }
.pie p { margin: 4px 0; }
.sin-js { text-align: center; padding: 20px; }


/* ------------------------------------------------------------------ pantallas grandes */
@media (max-width: 420px) {
  .barra { padding-left: 12px; padding-right: 8px; gap: 6px; }
  .barra nav { gap: 0; }
  .barra nav a { padding: 6px 6px; font-size: 0.86rem; }
}
@media (min-width: 720px) {
  .hero { grid-template-columns: 1.4fr 1fr; align-items: center; padding-top: 80px; }
  .arena-marco { aspect-ratio: 4 / 3; }
  .paneles { grid-template-columns: 1fr 1fr; }
  .ciencia-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1000px) {
  .lab { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); align-items: start; }
  .cerebro-col { position: sticky; top: 72px; }
  .ciencia-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .aviso, .barra-m span, .val .pos, .val .neg { transition: none; }
}