:root {
  --fondo: #0a1620;
  --fondo-2: #0f2230;
  --tinta: #e6f0f2;
  --tinta-suave: #8fa9b3;
  --acento: #7fd3c4;
  --borde: rgba(255, 255, 255, 0.08);
  --radio: 22px;
  --seguro-arriba: env(safe-area-inset-top, 0px);
  --seguro-abajo: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--fondo);
  color: var(--tinta);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: none;
}

button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }

.pantalla {
  position: fixed;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
}
.pantalla.activa { opacity: 1; pointer-events: auto; }

/* ---------- Inicio ---------- */
#inicio {
  display: flex;
  flex-direction: column;
  padding: calc(20px + var(--seguro-arriba)) 20px calc(16px + var(--seguro-abajo));
  background:
    radial-gradient(120% 60% at 80% -10%, rgba(127, 211, 196, 0.16), transparent 60%),
    radial-gradient(90% 50% at 0% 110%, rgba(120, 140, 230, 0.14), transparent 60%),
    var(--fondo);
  overflow-y: auto;
}

.cabecera { display: flex; justify-content: space-between; align-items: flex-start; }
.saludo { margin: 0; color: var(--tinta-suave); font-size: 15px; }
h1 { margin: 2px 0 0; font-size: 34px; font-weight: 600; letter-spacing: -0.5px; }

.btn-ayuda {
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--borde);
  font-size: 20px; color: #f2a7b8;
  background: rgba(255, 255, 255, 0.03);
}

.checkin {
  margin: 22px 0 18px;
  padding: 16px 18px;
  border-radius: var(--radio);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--borde);
}
.checkin-pregunta { margin: 0 0 12px; font-size: 16px; }
.checkin-nota { margin: 10px 0 0; font-size: 13px; color: var(--tinta-suave); min-height: 1em; }

.escala { display: flex; justify-content: space-between; gap: 8px; }
.escala button {
  flex: 1; aspect-ratio: 1; max-width: 52px;
  border-radius: 50%;
  border: 2px solid transparent;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.escala button.sel { border-color: var(--tinta); transform: scale(1.12); }

.rejilla { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.tarjeta {
  position: relative;
  min-height: 150px;
  padding: 16px;
  border-radius: var(--radio);
  text-align: left;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: hidden;
  border: 1px solid var(--borde);
  transition: transform 0.2s ease;
}
.tarjeta:active { transform: scale(0.97); }
.tarjeta .icono {
  position: absolute; top: 14px; left: 16px;
  font-size: 30px; line-height: 1;
}
.tarjeta .nombre { font-size: 17px; font-weight: 600; }
.tarjeta .desc { font-size: 12.5px; color: rgba(230, 240, 242, 0.75); margin-top: 3px; line-height: 1.35; }
.tarjeta.ancha { grid-column: span 2; min-height: 120px; }

.pie {
  margin-top: auto;
  padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center;
}
.calma { display: flex; align-items: baseline; gap: 6px; }
.calma-num { font-size: 26px; font-weight: 600; color: var(--acento); }
.calma-txt { font-size: 13px; color: var(--tinta-suave); }
.ajustes { display: flex; gap: 6px; }
.chip {
  padding: 7px 12px; border-radius: 999px; font-size: 13px;
  border: 1px solid var(--borde); color: var(--tinta-suave);
}
.chip.on { color: var(--fondo); background: var(--acento); border-color: var(--acento); }

/* ---------- Sesión ---------- */
#sesion { background: #050c12; }
#escenario { position: absolute; inset: 0; touch-action: none; }
#escenario canvas { display: block; width: 100%; height: 100%; }

.btn-volver {
  position: absolute;
  top: calc(12px + var(--seguro-arriba)); left: 12px;
  width: 44px; height: 44px; border-radius: 50%;
  font-size: 30px; line-height: 40px;
  color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.05);
  z-index: 5;
}
.sesion-titulo {
  position: absolute;
  top: calc(22px + var(--seguro-arriba)); left: 0; right: 0;
  text-align: center; font-size: 14px; letter-spacing: 2px; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  pointer-events: none; z-index: 4;
  transition: opacity 1.5s ease;
}

/* Controles que las mecánicas pueden poner abajo */
.controles {
  position: absolute; left: 0; right: 0;
  bottom: calc(18px + var(--seguro-abajo));
  display: flex; justify-content: center; flex-wrap: wrap; gap: 8px;
  padding: 0 16px; z-index: 4;
}
.controles .chip { background: rgba(0, 0, 0, 0.25); backdrop-filter: blur(6px); }
.controles .chip.on { color: #06121a; background: var(--acento); }

.rotulo {
  position: absolute; left: 0; right: 0; text-align: center;
  pointer-events: none; z-index: 3;
  color: rgba(255, 255, 255, 0.85);
  transition: opacity 0.8s ease;
}

/* ---------- Modales ---------- */
.modal {
  position: fixed; inset: 0; z-index: 20;
  display: flex; align-items: flex-end; justify-content: center;
  background: rgba(3, 8, 12, 0.6);
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s ease;
}
.modal.abierto { opacity: 1; pointer-events: auto; }
.tarjeta-modal {
  width: 100%; max-width: 480px;
  margin: 12px; margin-bottom: calc(12px + var(--seguro-abajo));
  padding: 22px 20px 18px;
  border-radius: 26px;
  background: var(--fondo-2);
  border: 1px solid var(--borde);
  transform: translateY(30px);
  transition: transform 0.4s ease;
}
.modal.abierto .tarjeta-modal { transform: none; }
.tarjeta-modal h2 { margin: 0 0 8px; font-size: 22px; }
.tarjeta-modal p { color: var(--tinta-suave); line-height: 1.5; font-size: 15px; }
.lineas { padding-left: 18px; line-height: 1.9; }
.btn-suave {
  margin-top: 14px; width: 100%; padding: 14px;
  border-radius: 16px; background: rgba(127, 211, 196, 0.16); color: var(--acento);
  font-weight: 600;
}