/* Tarjeta de fidelidad con QR · demo «Café Ejemplo» (negocio inventado)
   Colores de la demo: verde oliva #3f6b4f y terracota #8f3f1f · sin degradados */
:root {
  --teal: #3f6b4f; --teal-osc: #2e5039; --teal-claro: #edf3ee; --cafe: #8f3f1f; --cafe-claro: #f8eee7;
  --crema: #faf6ef; --blanco: #fff; --tinta: #16252c; --muted: #6b7b82; --linea: #e6e0d6;
  --verde: #2f7d4f; --verde-claro: #e6f3ea; --rojo: #b3261e; --rojo-claro: #fbe9e7; --ambar: #8a5a00; --ambar-claro: #fff3d6;
  --radio: 16px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--crema); color: var(--tinta); font: 16px/1.5 "Century Gothic", "Trebuchet MS", "Segoe UI", system-ui, sans-serif; }
h1, h2 { font-weight: 700; line-height: 1.2; margin: 0 0 .5em; color: var(--teal-osc); }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.1rem; display: flex; align-items: center; gap: .45em; }
p { margin: 0 0 .9em; }
a { color: var(--teal); }
b, strong { font-weight: 700; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ico { width: 1.25em; height: 1.25em; flex: none; fill: currentColor; stroke: none; vertical-align: -.2em; }
.ico .trazo, .ico path.trazo, .ico circle.trazo, .ico rect.trazo { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; border-radius: 6px; }

/* ---------- estructura pública */
.top { text-align: center; padding: 18px 16px 6px; }
.top img { max-width: 200px; height: auto; }
.contenedor { max-width: 520px; margin: 0 auto; padding: 8px 16px 40px; }
.contenedor--estrecho { max-width: 420px; padding-top: 28px; }
.centro { text-align: center; }
.pie { text-align: center; color: var(--muted); font-size: .85rem; padding: 0 16px 28px; }
.nota { font-size: .9rem; color: var(--muted); }
.nota--centro { text-align: center; }
.vacio { color: var(--muted); font-style: italic; }
code { background: var(--teal-claro); padding: .1em .4em; border-radius: 6px; font-size: .85em; word-break: break-all; }

/* ---------- botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; min-height: 44px; padding: .6em 1.2em; border: 2px solid var(--teal); border-radius: 999px; background: var(--teal); color: #fff; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.btn:hover { background: var(--teal-osc); border-color: var(--teal-osc); }
.btn--linea { background: transparent; color: var(--teal); }
.btn--linea:hover { background: var(--teal-claro); color: var(--teal-osc); }
.btn--grande { width: 100%; min-height: 52px; font-size: 1.05rem; }
.btn--premio { background: var(--cafe); border-color: var(--cafe); }
.btn--premio:hover { background: #2a180d; border-color: #2a180d; }
.btn--peligro { background: var(--rojo); border-color: var(--rojo); }
.btn--peq { min-height: 34px; padding: .25em .9em; font-size: .85rem; }
.btn--claro { color: #fff; border-color: #fff; }
.btn--claro:hover { background: rgba(255, 255, 255, .15); color: #fff; }
.btn[disabled] { opacity: .6; cursor: wait; }
.enlace { background: none; border: 0; color: inherit; font: inherit; cursor: pointer; display: inline-flex; align-items: center; gap: .4em; padding: 0; }

/* ---------- avisos */
.aviso { padding: 12px 14px; border-radius: 12px; margin: 10px 0; border: 1px solid transparent; font-size: .95rem; }
.aviso--ok { background: var(--verde-claro); border-color: #bfe0c9; color: #1f5a37; }
.aviso--info { background: var(--teal-claro); border-color: #bcdbe5; color: var(--teal-osc); }
.aviso--error { background: var(--rojo-claro); border-color: #f1c4bf; color: #8c1d17; }
.aviso--prueba { background: var(--ambar-claro); border-color: #f0d9a0; color: var(--ambar); text-align: center; }

/* ---------- tarjeta de sellos */
.tarjeta { background: var(--blanco); border: 1px solid var(--linea); border-radius: 22px; padding: 20px 18px 18px; margin: 14px 0; }
.tarjeta__cab { display: flex; justify-content: space-between; align-items: baseline; font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.tarjeta__cab .num { font-weight: 700; color: var(--teal-osc); }
.tarjeta__lema { font-size: 1.2rem; margin: .5em 0 1em; color: var(--teal-osc); }
.tarjeta__lema b { color: var(--cafe); }
.sellos { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.sellos li { position: relative; aspect-ratio: 1; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-direction: column; }
.sellos .ico { width: 46%; height: 46%; }
.sellos .vacio { border: 2px dashed #9cc3d0; color: #9cc3d0; font-style: normal; }
.sellos .lleno { background: var(--teal); color: var(--crema); border: 2px solid var(--teal); }
.sellos .lleno .ico path { stroke: var(--teal); }
.sellos .vacio .ico path { stroke: var(--crema); }
.sellos .ico path { stroke-width: 1.6; }
.sellos .regalo { background: var(--cafe-claro); border: 2px solid var(--cafe); color: var(--cafe); }
.sellos .regalo small { font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin-top: 2px; }
.sellos .regalo.activo { background: var(--cafe); color: var(--crema); box-shadow: 0 0 0 4px var(--cafe-claro); }
.progreso { text-align: center; margin: 14px 0 0; color: var(--muted); }
.progreso strong { color: var(--teal-osc); font-size: 1.3rem; }

.premio { background: var(--cafe-claro); border: 2px solid var(--cafe); border-radius: var(--radio); padding: 16px; margin: 14px 0; text-align: center; }
.premio h2 { justify-content: center; color: var(--cafe); font-size: 1.3rem; }
.premio p { margin-bottom: .6em; }

.bloque { background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio); padding: 16px; margin: 14px 0; }
.tarjeta-info { background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio); padding: 20px; margin: 18px 0; text-align: center; }
.bloque.texto p { font-size: .95rem; }
details { margin: .3em 0; }
summary { cursor: pointer; font-weight: 700; color: var(--teal); padding: 8px 0; }

/* ---------- inicio sin tarjeta */
.hero { padding: 10px 0; }
.hero h1 { font-size: 1.9rem; margin-top: .4em; }
.hero h1 span { color: var(--cafe); }
.pasos { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 10px; }
.pasos li { display: flex; gap: 12px; align-items: center; background: var(--blanco); border: 1px solid var(--linea); border-radius: 14px; padding: 12px 14px; }
.pasos .ico { width: 30px; height: 30px; color: var(--teal); }

/* ---------- formularios */
.formu { display: grid; gap: 12px; }
.formu label { display: grid; gap: 4px; font-weight: 700; font-size: .9rem; color: var(--teal-osc); }
.formu input:not([type=checkbox]), .formu textarea, .formu select, .busca input { width: 100%; min-height: 46px; padding: .55em .8em; border: 1.5px solid #b9cbd2; border-radius: 12px; background: #fff; font: inherit; color: var(--tinta); }
.formu label.check, label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--tinta); }
.check input { width: 20px; height: 20px; margin-top: 2px; flex: none; }

/* ---------- cupón de canje */
.cupon { background: var(--teal); color: #fff; border-radius: 22px; padding: 24px 18px; margin: 14px 0; text-align: center; }
.cupon h1 { color: #fff; font-size: 2rem; margin-bottom: .1em; text-transform: uppercase; letter-spacing: .04em; }
.cupon__bar { margin: 0 0 .3em; letter-spacing: .12em; text-transform: uppercase; font-size: .85rem; opacity: .9; }
.cupon__premio { font-size: 1.2rem; margin-bottom: 1em; }
.cupon__codigo { font-size: 3.2rem; font-weight: 700; letter-spacing: .25em; margin: .1em 0 .2em .25em; background: #fff; color: var(--teal-osc); border-radius: 14px; padding: .15em 0; }
.cupon__reloj { font-size: 2.6rem; font-variant-numeric: tabular-nums; font-weight: 700; margin: .1em 0 0; }
.cupon__fecha { margin-bottom: .8em; opacity: .9; }
.cupon__barra { height: 10px; background: rgba(255, 255, 255, .3); border-radius: 999px; overflow: hidden; margin: 0 0 .6em; }
.cupon__barra i { display: block; height: 100%; width: 100%; background: #fff; border-radius: 999px; transition: width 1s linear; }
.cupon__resto { margin-bottom: .6em; }
.cupon--caducado { background: #5b6b72; }
.nota--cupon { color: #e5f1f5; }

/* ---------- panel del bar */
.panel__top { background: var(--blanco); border-bottom: 1px solid var(--linea); padding: 10px 16px; display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; justify-content: space-between; }
.panel__marca { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--teal-osc); font-weight: 700; }
.panel__menu { display: flex; flex-wrap: wrap; gap: 4px 6px; align-items: center; }
.panel__menu a, .panel__menu .enlace { display: inline-flex; align-items: center; gap: .4em; padding: .45em .8em; border-radius: 999px; text-decoration: none; color: var(--tinta); font-size: .95rem; }
.panel__menu a:hover, .panel__menu .enlace:hover { background: var(--teal-claro); }
.panel__menu a.activo { background: var(--teal); color: #fff; }
.panel__menu form { margin: 0; }
.panel__main { max-width: 1040px; margin: 0 auto; padding: 18px 16px 48px; }
.titulo { margin-bottom: 14px; }
.titulo h1 { margin-bottom: .15em; }
.titulo p { color: var(--muted); margin: 0; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 14px 0; }
.kpi { background: var(--blanco); border: 1px solid var(--linea); border-radius: 14px; padding: 12px 14px; }
.kpi b { display: block; font-size: 1.9rem; line-height: 1.1; color: var(--teal-osc); }
.kpi span { color: var(--muted); font-size: .85rem; }
.columnas { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; }
.columnas > .bloque { margin: 0; }
.lista { list-style: none; margin: 0; padding: 0; }
.lista li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--linea); }
.lista li:last-child { border-bottom: 0; }
.lista a, .lista span:first-child { display: block; text-decoration: none; color: var(--tinta); }
.lista small { display: block; color: var(--muted); }
.chip { display: inline-block; padding: .1em .6em; border-radius: 999px; font-size: .75rem; font-weight: 700; background: var(--teal-claro); color: var(--teal-osc); white-space: nowrap; }
.chip--verde { background: var(--verde-claro); color: #1f5a37; }
.chip--rojo { background: var(--rojo-claro); color: #8c1d17; }
.tabla-caja { overflow-x: auto; background: var(--blanco); border: 1px solid var(--linea); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: 10px 12px; border-bottom: 1px solid var(--linea); white-space: nowrap; }
td { padding: 10px 12px; border-bottom: 1px solid var(--linea); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
.busca { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.busca input { max-width: 240px; }
.acciones { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.acciones form { margin: 0; }

/* ---------- cartel del QR (pantalla + impresión) */
.cartel { background: #fff; border: 1px solid var(--linea); border-radius: 12px; max-width: 620px; margin: 0 auto; padding: 36px 32px; text-align: center; }
.cartel__logo { width: 260px; max-width: 70%; height: auto; }
.cartel h1 { font-size: 2.2rem; margin: .7em 0 .1em; }
.cartel h1 span { color: var(--cafe); }
.cartel__premio { font-size: 1.15rem; color: var(--cafe); font-weight: 700; margin-bottom: 1em; }
.cartel__qr { width: 320px; max-width: 80%; height: auto; border: 6px solid var(--teal); border-radius: 16px; padding: 10px; background: #fff; }
.cartel__lema { font-size: 1.2rem; font-weight: 700; color: var(--teal-osc); margin: .8em 0 .6em; }
.cartel__pasos { list-style: none; padding: 0; margin: 0 auto 1em; max-width: 420px; text-align: left; display: grid; gap: 8px; }
.cartel__pasos li { display: flex; gap: 12px; align-items: center; }
.cartel__pasos b { display: inline-flex; width: 30px; height: 30px; border-radius: 50%; background: var(--teal); color: #fff; align-items: center; justify-content: center; flex: none; }
.cartel__pie { color: var(--muted); font-size: .85rem; margin: 0; }
@media print {
  @page { size: A4; margin: 12mm; }
  body { background: #fff; }
  .panel__top, .no-imprimir, .aviso { display: none !important; }
  .panel__main { padding: 0; max-width: none; }
  .cartel { border: 0; max-width: none; padding: 0; }
  .cartel h1 { font-size: 2.6rem; }
  .cartel__qr { width: 380px; }
}
@media (min-width: 700px) {
  body.panel { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { .cupon__barra i { transition: none; } }

/* aviso de demostración pública */
.demo-aviso { margin: 8px 16px 0; padding: 10px 14px; border-radius: 12px; background: var(--cafe-claro); border: 1px solid #e8c9b6; color: var(--cafe); font-size: .88rem; line-height: 1.4; text-align: center; }
.demo-aviso a { color: var(--cafe); font-weight: 700; text-decoration: underline; }