:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #f9fafb;
  --border: #e3e5e8;
  --text: #1a1d21;
  --text-secondary: #666d76;
  --text-muted: #9aa0a6;
  --primary: #1f6feb;
  --primary-contrast: #ffffff;
  --success-bg: #e6f7ee;
  --success-text: #1a7f4e;
  --warning-bg: #fff6e0;
  --warning-text: #8a6300;
  --danger-bg: #fdecec;
  --danger-text: #c0341f;
  --radius: 10px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 24px; background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 600; text-decoration: none; color: var(--text); font-size: 15px; }
#nav { display: flex; gap: 10px; align-items: center; }
#nav a, #nav button {
  font-size: 13px; color: var(--text-secondary); text-decoration: none; cursor: pointer;
  background: none; border: none; padding: 6px 10px; border-radius: 8px; font-family: inherit;
}
#nav a:hover, #nav button:hover { background: var(--surface-2); color: var(--text); }
#nav .activo { color: var(--primary); font-weight: 600; }

.app { max-width: 900px; margin: 0 auto; padding: 24px 16px 80px; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px; margin-bottom: 16px;
}
.card h2 { margin-top: 0; font-size: 17px; }
.card h3 { font-size: 14px; margin: 0 0 8px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

label { font-size: 13px; color: var(--text-secondary); display: block; margin: 10px 0 4px; }
input, select, textarea {
  width: 100%; padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: var(--surface);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

button.btn, a.btn {
  display: inline-block; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-size: 13px; cursor: pointer; font-family: inherit;
  text-decoration: none; font-weight: 500;
}
button.btn:hover, a.btn:hover { background: var(--surface-2); }
button.btn-primary, a.btn-primary { background: var(--primary); color: var(--primary-contrast); border-color: var(--primary); }
button.btn-primary:hover { opacity: 0.9; }
button.btn-danger { color: var(--danger-text); border-color: var(--danger-text); background: var(--surface); }
button.btn-success { color: var(--success-text); border-color: var(--success-text); background: var(--surface); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.btn-block, a.btn-block { display: block; width: 100%; text-align: center; }

.badge { font-size: 11px; padding: 3px 9px; border-radius: 20px; font-weight: 600; display: inline-block; }
.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); }
.badge-muted { background: var(--surface-2); color: var(--text-secondary); }
.badge-danger { background: var(--danger-bg); color: var(--danger-text); }

.alert { border-radius: 8px; padding: 12px 14px; font-size: 13px; margin: 12px 0; }
.alert-warning { background: var(--warning-bg); color: var(--warning-text); }
.alert-info { background: var(--surface-2); color: var(--text-secondary); }
.alert-danger { background: var(--danger-bg); color: var(--danger-text); }

.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 8px 6px; color: var(--text-secondary); font-weight: 600; border-bottom: 1px solid var(--border); }
td { padding: 8px 6px; border-bottom: 1px solid var(--border); }

.lista-eventos { display: grid; gap: 12px; }
.evento-cartel {
  height: 280px; border-radius: 8px 8px 0 0; background: var(--surface-2);
  display: flex; align-items: center; justify-content: center; color: var(--text-muted);
  font-size: 13px; overflow: hidden;
}
.evento-cartel img { width: 100%; height: 100%; object-fit: contain; }

/* Cartel a tamaño grande: para la ficha de un evento (no una tarjeta en una lista), donde
   interesa verlo lo más grande posible y completo, sin recortar ni dejarlo diminuto. */
.evento-cartel-grande {
  width: 100%; max-height: 70vh; border-radius: 8px 8px 0 0; background: var(--surface-2);
  display: flex; align-items: center; justify-content: center; color: var(--text-muted);
  font-size: 13px; overflow: hidden;
}
.evento-cartel-grande img { display: block; width: 100%; max-height: 70vh; object-fit: contain; margin: 0 auto; }

.checkbox-row { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; margin: 8px 0; }
.checkbox-row input { width: auto; margin-top: 2px; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: white; padding: 10px 18px; border-radius: 8px; font-size: 13px;
  opacity: 0; pointer-events: none; transition: all 0.25s ease; z-index: 100; max-width: 90%;
}
.toast.mostrar { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--danger-text); }

.muted { color: var(--text-muted); font-size: 13px; }
.spacer { height: 8px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.text-right { text-align: right; }
hr.sep { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

/* Ventanas emergentes (devoluciones pendientes, etc.) */
.modal-fondo {
  position: fixed; inset: 0; background: rgba(20, 22, 26, 0.5); z-index: 50;
  display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto;
}
.modal {
  background: var(--surface); border-radius: 12px; padding: 22px; width: 100%; max-width: 640px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}

/* Entorno de pruebas y pie de página */
#banner-entorno { background: #b45309; color: #fff; text-align: center; font-size: 13px; font-weight: 600; padding: 6px 12px; position: sticky; top: 0; z-index: 60; }
.pie { text-align: center; color: var(--text-muted); font-size: 12px; padding: 0 16px 24px; }

/* Móvil: la barra superior tiene varios enlaces (Torneos, Ranking, Panel admin, Usuarios, Salir) que no
   caben en una sola línea en un teléfono; se dejan pasar a una segunda línea en vez de desbordar o
   solaparse con el nombre de la app. Los inputs a 16px evitan que Safari en iPhone haga zoom automático
   al tocarlos (la causa más habitual de que "algo se vea raro" al escribir en un formulario en el móvil). */
@media (max-width: 640px) {
  html { -webkit-text-size-adjust: 100%; }
  .topbar { flex-wrap: wrap; padding: 10px 14px; row-gap: 6px; }
  .brand { font-size: 14px; }
  #nav { flex-wrap: wrap; justify-content: flex-end; gap: 4px 8px; width: 100%; }
  #nav a, #nav button { padding: 5px 8px; font-size: 12.5px; }
  .app { padding: 16px 12px 72px; }
  .card { padding: 14px; }
  .card h2 { font-size: 16px; }
  input, select, textarea { font-size: 16px; }
  button.btn, a.btn { padding: 9px 14px; }
  table { font-size: 12.5px; }
  th, td { padding: 7px 5px; }
  .modal-fondo { padding: 12px; align-items: flex-start; }
  .modal { padding: 16px; max-height: calc(100vh - 24px); overflow-y: auto; }
}