/* Rollo: papel de laboratorio, tinta, y el rojo de la luz de seguridad del cuarto oscuro. */
:root {
  --papel: #F3EEE4;
  --papel-2: #EAE3D6;
  --linea: #D9D0BF;
  --tinta: #1B1916;
  --tinta-2: #5E5850;
  --tinta-3: #8E877C;
  --rojo: #D2412B;
  --rojo-osc: #A9301E;
  --verde: #2F6B4F;
  --oscuro: #141210;
  --oscuro-2: #24211D;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --radio: 14px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font: 400 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 400; }
p { margin: 0 0 1em; }

.punto { color: var(--rojo); }
.marca { font: 400 28px/1 var(--serif); text-decoration: none; letter-spacing: -0.01em; }
.nota { color: var(--tinta-3); font-size: 14px; }
.opt { color: var(--tinta-3); font-weight: 400; }
.centro { text-align: center; }

/* ---------- Estructura ---------- */
.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px max(16px, calc((100vw - 1120px) / 2));
}
.top nav { display: flex; gap: 20px; align-items: center; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--tinta-2); }
.top nav a:hover { color: var(--tinta); }
.top form { margin: 0; }

main.angosto { max-width: 480px; margin: 48px auto 96px; padding: 0 16px; }
main.ancho { max-width: 1120px; margin: 32px auto 96px; padding: 0 16px; }

.pie {
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between;
  padding: 32px max(16px, calc((100vw - 1120px) / 2)); border-top: 1px solid var(--linea);
  color: var(--tinta-3); font-size: 14px;
}
.pie a { color: var(--tinta-2); }

.titulo { font: 400 clamp(36px, 6vw, 48px)/1.05 var(--serif); letter-spacing: -0.015em; margin-bottom: 12px; }
.bajada { font-size: 18px; color: var(--tinta-2); }
.meta { color: var(--tinta-2); margin: 0; }
.seccion { font: 400 clamp(32px, 5vw, 44px)/1.1 var(--serif); text-align: center; margin-bottom: 40px; }
.cabecera { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: flex-end; margin-bottom: 32px; }

/* ---------- Botones y formularios ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 999px; padding: 12px 22px;
  background: var(--tinta); color: var(--papel);
  font: 500 15px/1.2 var(--sans); text-decoration: none; cursor: pointer;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { background: #000; }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.grande { padding: 16px 28px; font-size: 17px; }
.btn.sec { background: transparent; color: var(--tinta); box-shadow: inset 0 0 0 1.5px var(--tinta); }
.btn.sec:hover { background: var(--papel-2); }
.btn.peligro { background: var(--rojo-osc); }
button.link { background: none; border: 0; padding: 0; font: inherit; color: var(--tinta-2); cursor: pointer; }
button.link:hover { color: var(--tinta); }

.acciones { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.form { display: grid; gap: 20px; }
.form label, .form legend { display: grid; gap: 8px; font-weight: 500; font-size: 15px; }
.form fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; }
.form fieldset .nota { margin: -4px 0 4px; font-weight: 400; }
.form label.opcion { display: flex; gap: 10px; align-items: center; font-weight: 400; }
input, select {
  font: 400 16px/1.3 var(--sans); color: var(--tinta);
  background: #FFFDF8; border: 1.5px solid var(--linea); border-radius: 10px; padding: 12px 14px; width: 100%;
}
input:focus, select:focus { outline: none; border-color: var(--tinta); }
input[type=radio] { width: 18px; height: 18px; accent-color: var(--rojo); }
input[type=file] { padding: 10px; }
.form.fila { display: flex; flex-wrap: wrap; gap: 10px; }
.form.fila input { width: auto; flex: 1 1 140px; }

.aviso { background: var(--papel-2); border-radius: 10px; padding: 12px 16px; font-size: 15px; }
.aviso.error { background: #F6DCD5; color: #7A2416; }
.aviso.exito { background: #DCEADF; color: #1F4A36; }

.vacio { border: 1.5px dashed var(--linea); border-radius: var(--radio); padding: 48px 24px; text-align: center; color: var(--tinta-2); }

/* ---------- Landing ---------- */
.hero {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center;
  max-width: 1120px; margin: 40px auto 120px; padding: 0 16px;
}
.sobre { font: 500 13px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--rojo); margin-bottom: 20px; }
.hero h1 { font: 400 clamp(44px, 6.4vw, 76px)/1.0 var(--serif); letter-spacing: -0.02em; margin-bottom: 24px; }
.hero h1 em { font-style: italic; color: var(--rojo); }
.hero .bajada { max-width: 34em; margin-bottom: 32px; }

.demo {
  background: var(--oscuro); color: var(--papel); border-radius: 22px; padding: 28px;
  display: grid; gap: 24px;
  box-shadow: 0 30px 60px -30px rgba(27, 25, 22, .5);
}
.demo-qr { display: grid; grid-template-columns: 132px 1fr; gap: 6px 20px; align-items: center; }
.demo-titulo { grid-column: 1 / -1; font: 400 28px/1 var(--serif); margin-bottom: 10px; }
.demo .qr { background: var(--papel); padding: 10px; border-radius: 10px; width: 132px; }
.demo .nota { color: #B4AC9F; margin: 0; }
.demo .movil-solo { display: none; }
.demo-rollo {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
  padding: 14px 10px; background: var(--oscuro-2); border-radius: 10px;
  /* perforaciones del negativo */
  background-image:
    radial-gradient(circle, var(--oscuro) 2.5px, transparent 3px),
    radial-gradient(circle, var(--oscuro) 2.5px, transparent 3px);
  background-size: 14px 8px, 14px 8px;
  background-position: 0 2px, 0 calc(100% - 2px);
  background-repeat: repeat-x;
}
.cuadro { aspect-ratio: 3 / 4; border-radius: 4px; overflow: hidden; background: #322E28; }
.cuadro img { width: 100%; height: 100%; object-fit: cover; }
.cuadro.aparece img { animation: revelar 1.8s ease-out both; }
@keyframes revelar {
  from { filter: brightness(2.4) sepia(1) hue-rotate(-20deg) saturate(3); opacity: 0; }
  40% { opacity: 1; }
  to { filter: none; }
}

.pasos { max-width: 1120px; margin: 0 auto 120px; padding: 0 16px; }
.pasos ol { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.pasos .n { font: 500 13px/1 var(--mono); color: var(--rojo); display: block; margin-bottom: 14px; }
.pasos h3 { font: 400 26px/1.15 var(--serif); margin-bottom: 8px; }
.pasos p { color: var(--tinta-2); }

.porque {
  max-width: 1120px; margin: 0 auto 120px; padding: 48px 16px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
  border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea);
}
.porque h3 { font: 600 17px/1.3 var(--sans); margin-bottom: 8px; }
.porque p { color: var(--tinta-2); margin: 0; }

.planes { max-width: 1120px; margin: 0 auto 120px; padding: 0 16px; }
.planes .bajada { margin: -24px 0 40px; }
.planes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.plan { position: relative; border: 1.5px solid var(--linea); border-radius: 18px; padding: 28px; background: #FFFDF8; }
.plan.destacado { border-color: var(--tinta); box-shadow: 0 20px 40px -24px rgba(27, 25, 22, .35); }
.plan .etiqueta {
  position: absolute; top: -12px; left: 28px; background: var(--rojo); color: #fff;
  font: 500 12px/1 var(--mono); padding: 6px 10px; border-radius: 999px; letter-spacing: .03em;
}
.plan h3 { font: 600 17px/1.3 var(--sans); margin-bottom: 6px; }
.plan .precio { font: 400 44px/1 var(--serif); margin-bottom: 20px; }
.plan ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 15px; }
.plan li::before { content: '—'; color: var(--rojo); margin-right: 8px; }
.plan li.menos { color: var(--tinta-3); }

.faq { max-width: 720px; margin: 0 auto 120px; padding: 0 16px; }
.faq details { border-bottom: 1px solid var(--linea); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 500; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: '+'; color: var(--rojo); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: '–'; }
.faq details p { margin: 12px 0 0; color: var(--tinta-2); }

.cierre { text-align: center; padding: 96px 16px; background: var(--oscuro); color: var(--papel); }
.cierre h2 { font: 400 clamp(36px, 5.5vw, 60px)/1.05 var(--serif); max-width: 14em; margin: 0 auto 32px; }
.cierre .btn { background: var(--papel); color: var(--tinta); }
.cierre .btn:hover { background: #fff; }

.legal p { color: var(--tinta-2); }

/* ---------- Panel ---------- */
.lista-eventos { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.lista-eventos a {
  display: grid; grid-template-columns: 1fr auto; gap: 2px 16px; padding: 20px 22px;
  background: #FFFDF8; border: 1.5px solid var(--linea); border-radius: var(--radio); text-decoration: none;
}
.lista-eventos a:hover { border-color: var(--tinta); }
.lista-eventos .nombre { font: 400 26px/1.2 var(--serif); }
.lista-eventos .meta { grid-column: 1; color: var(--tinta-2); font-size: 14px; }
.lista-eventos .cuenta { grid-column: 2; grid-row: 1 / 3; align-self: center; font: 400 14px/1 var(--mono); color: var(--tinta-2); }

.cifras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--linea); border: 1px solid var(--linea); border-radius: var(--radio); overflow: hidden; margin-bottom: 32px; }
.cifras > div { background: #FFFDF8; padding: 20px; display: grid; gap: 4px; color: var(--tinta-2); font-size: 14px; }
.cifras .num { font: 400 40px/1 var(--serif); color: var(--tinta); }
.cifras .num.chico { font-size: 20px; line-height: 1.2; }
.cifras small { font-size: 20px; color: var(--tinta-3); }

.dos-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.dos-col h2 { font: 400 28px/1.2 var(--serif); margin-bottom: 16px; }
.dos-col section > h2:not(:first-child) { margin-top: 32px; }
.tarjeta-qr .qr { width: 220px; background: #fff; padding: 16px; border-radius: 12px; border: 1.5px solid var(--linea); margin-bottom: 12px; }
.link-copiar code { font: 400 13px/1.4 var(--mono); color: var(--tinta-2); word-break: break-all; }
.tarjeta-qr .acciones { margin: 16px 0; }

.mejora { background: var(--oscuro); color: var(--papel); border-radius: 18px; padding: 24px; margin-bottom: 32px; }
.mejora h2 { margin-bottom: 4px; }
.mejora .nota { color: #B4AC9F; }
.planes-mini { display: grid; gap: 12px; }
.plan-mini { display: grid; grid-template-columns: 1fr auto; gap: 2px 16px; align-items: center; background: var(--oscuro-2); border-radius: 12px; padding: 16px; margin: 0; }
.plan-mini .nombre { font-weight: 600; }
.plan-mini .precio { font: 400 28px/1 var(--serif); grid-column: 2; grid-row: 1 / 3; }
.plan-mini .det { color: #B4AC9F; font-size: 14px; }
.plan-mini .btn { grid-column: 1 / -1; margin-top: 12px; background: var(--papel); color: var(--tinta); }

details.peligro { margin-top: 40px; color: var(--tinta-2); font-size: 14px; }
details.peligro summary { cursor: pointer; }
details.peligro p { margin: 10px 0; }

/* ---------- Tarjetas imprimibles ---------- */
body.imprimir { background: #ddd; }
.barra-imprimir { display: flex; gap: 16px; align-items: center; justify-content: center; flex-wrap: wrap; padding: 16px; background: var(--papel); }
.hoja {
  width: 210mm; height: 297mm; margin: 24px auto; background: #fff;
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
}
.tarjeta { border: 1px dashed #ccc; padding: 14mm 10mm; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4mm; }
.t-arriba { font: 500 9pt/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--rojo); margin: 0; }
.t-nombre { font: 400 22pt/1.05 var(--serif); }
.t-qr { width: 48mm; }
.t-pasos { font-size: 8.5pt; color: var(--tinta-2); margin: 0; max-width: 70mm; }
.t-marca { font: 400 14pt/1 var(--serif); margin: 0; }
@media print {
  @page { size: A4; margin: 0; }
  body.imprimir { background: #fff; }
  .no-print { display: none !important; }
  .hoja { margin: 0; }
}

/* ---------- Cámara del invitado ---------- */
body.invitado { background: var(--oscuro); color: var(--papel); min-height: 100dvh; }
.cam {
  max-width: 440px; margin: 0 auto; min-height: 100dvh;
  padding: max(28px, env(safe-area-inset-top)) 20px max(24px, env(safe-area-inset-bottom));
  display: flex; flex-direction: column; text-align: center;
}
.portada { width: 96px; height: 96px; object-fit: cover; border-radius: 50%; margin: 0 auto 16px; border: 2px solid var(--oscuro-2); }
.cam-arriba { font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--rojo); margin-bottom: 10px; }
.cam-nombre { font: 400 clamp(34px, 10vw, 44px)/1.05 var(--serif); margin-bottom: 28px; }
.cam-sub { color: #B4AC9F; }
.cam-hola { font-size: 17px; margin-bottom: 8px; }
.cam-nota { color: #8E877C; font-size: 14px; margin-top: 20px; }
.cam-nota a { color: var(--papel); }
.cam-aviso { background: var(--oscuro-2); border-radius: 12px; padding: 20px; }
.cam-entrar { display: grid; gap: 16px; text-align: left; margin-top: 8px; }
.cam-entrar .cam-sub { text-align: center; }
.cam-entrar label { display: grid; gap: 8px; font-weight: 500; }
.cam-entrar input { background: var(--oscuro-2); border-color: #3A352E; color: var(--papel); font-size: 18px; padding: 16px; }
.cam-entrar input:focus { border-color: var(--papel); }
.cam-entrar .btn, .cam .btn { background: var(--papel); color: var(--tinta); }
.cam-entrar .cam-nota { text-align: center; }
.cam-disparo { flex: 1; display: flex; flex-direction: column; align-items: center; }

.contador { font: 500 64px/1 var(--mono); letter-spacing: -0.04em; }
.contador small { font-size: 24px; color: #8E877C; letter-spacing: 0; }

.obturador {
  position: relative; margin: 36px auto 20px; width: 168px; height: 168px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
  background: var(--rojo); color: #fff; font: 600 17px/1.2 var(--sans);
  box-shadow: 0 0 0 8px var(--oscuro), 0 0 0 10px #3A352E, 0 20px 50px -10px rgba(210, 65, 43, .5);
  transition: transform .15s ease, background .2s ease;
  -webkit-tap-highlight-color: transparent;
}
.obturador:active { transform: scale(.94); }
.obturador input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.obturador.ocupado { background: #7A2E22; pointer-events: none; }
.obturador.ocupado span { animation: latido 1s ease-in-out infinite; }
.obturador.off { background: #3A352E; color: #8E877C; pointer-events: none; box-shadow: 0 0 0 8px var(--oscuro), 0 0 0 10px #3A352E; }
.cam-estado { min-height: 1.5em; color: var(--papel); }
.cam-marca { margin-top: auto; padding-top: 32px; font-size: 13px; }
.cam-marca a { color: #8E877C; text-decoration: none; }
@keyframes latido { 50% { opacity: .4; } }

.flash { position: fixed; inset: 0; background: #fff; pointer-events: none; animation: flash .45s ease-out forwards; }
@keyframes flash { from { opacity: .9; } to { opacity: 0; } }

.revelando { margin: 24px auto; display: grid; gap: 4px; }
.revelando .num { font: 500 72px/1 var(--mono); }
.revelando span:last-child { color: #B4AC9F; }

/* ---------- Galería ---------- */
.gal-top { display: flex; justify-content: space-between; align-items: center; padding: 18px max(16px, calc((100vw - 1120px) / 2)); }
.gal-top a:not(.marca) { color: var(--tinta-2); font-size: 15px; }
.grilla { margin-top: 32px; columns: 4 220px; column-gap: 12px; }
.celda { display: block; position: relative; margin-bottom: 12px; break-inside: avoid; border-radius: 8px; overflow: hidden; background: var(--papel-2); }
.celda span {
  position: absolute; left: 8px; bottom: 8px; background: rgba(20, 18, 16, .7); color: var(--papel);
  font: 400 12px/1 var(--mono); padding: 5px 8px; border-radius: 999px; opacity: 0; transition: opacity .2s;
}
.celda:hover span { opacity: 1; }
.celda form { position: absolute; top: 8px; right: 8px; margin: 0; opacity: 0; transition: opacity .2s; }
.celda:hover form, .celda:focus-within form { opacity: 1; }
.celda .borrar {
  border: 0; border-radius: 999px; padding: 6px 10px; cursor: pointer;
  background: rgba(20, 18, 16, .75); color: var(--papel); font: 500 12px/1 var(--sans);
}
.celda .borrar:hover { background: var(--rojo-osc); }
@media (hover: none) { .celda span, .celda form { opacity: 1; } }

/* ---------- Pantalla en vivo ---------- */
body.pantalla { background: #000; color: #fff; overflow: hidden; }
#pantalla { height: 100vh; display: grid; grid-template-rows: 1fr auto; }
.p-foto { display: grid; place-items: center; overflow: hidden; }
.p-foto img { max-height: 88vh; max-width: 96vw; object-fit: contain; animation: revelar 2.2s ease-out both; }
.p-espera { font: 400 4vw/1.2 var(--serif); text-align: center; color: #8E877C; }
.p-pie { display: flex; justify-content: space-between; padding: 2vh 3vw; font: 400 2.2vw/1 var(--serif); }
.p-pie .marca { font-size: 2.2vw; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 40px; margin-bottom: 80px; }
  .pasos ol { grid-template-columns: 1fr 1fr; }
  .porque, .planes-grid { grid-template-columns: 1fr; }
  .dos-col { grid-template-columns: 1fr; }
  .cifras { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .pasos ol { grid-template-columns: 1fr; }
  .demo-qr { grid-template-columns: 1fr; }
  .demo .qr, .demo-qr > .nota { display: none; }
  .demo .movil-solo { display: inline-flex; background: var(--papel); color: var(--tinta); }
  .lista-eventos a { grid-template-columns: 1fr; }
  .lista-eventos .cuenta { grid-column: 1; grid-row: auto; margin-top: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}