:root {
  --primario: #3B2A20;
  --primario-oscuro: #241812;
  --miel: #FFC23D;
  --fondo-suave: #FFF1C9;
  --borde: #EAD9B0;
  --rosa: #F28B8B;
  --tinta: #2B1F17;
  --suave: #6B5444;
  --fondo: #FFFBF0;
  --blanco: #FFFFFF;
  --sem-verde: #1F7A45;
  --sem-amarillo: #F2B705;
  --sem-amarillo-texto: #2A2100;
  --sem-rojo: #C62828;
  --radio: 18px;
  --sombra: 0 1px 2px rgba(59, 42, 32, 0.06), 0 6px 20px rgba(59, 42, 32, 0.07);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--fondo);
  color: var(--tinta);
  font-family: "Nunito Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: var(--primario); }

.pantalla {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px 16px 32px;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.pantalla.con-nav { padding-bottom: 104px; }

h1 { font-family: "Young Serif", Georgia, serif; font-size: 27px; line-height: 1.18; letter-spacing: -0.01em; margin: 0; font-weight: 400; }
h2 { font-size: 18px; line-height: 1.25; margin: 0; font-weight: 800; }
p { margin: 0; }
.sub { color: var(--suave); font-size: 17px; margin-top: -6px; }
.suave { color: var(--suave); }
.chico { font-size: 14px; }
.eyebrow { font-size: 13px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--primario); margin-bottom: -8px; }
.oculto { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Barras */
.barra { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 48px; }
.marca { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--tinta); font-family: "Young Serif", Georgia, serif; font-size: 22px; }
.chip-mascota { display: inline-flex; align-items: center; gap: 8px; padding: 4px 14px 4px 4px; background: var(--blanco); border: 1px solid var(--borde); border-radius: 999px; text-decoration: none; color: var(--tinta); font-weight: 700; min-height: 44px; max-width: 170px; }
.chip-mascota span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.barra-paso { display: flex; align-items: center; gap: 8px; min-height: 48px; color: var(--suave); font-weight: 700; font-size: 15px; }
.volver, .icono-boton { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 22px; border: 0; background: transparent; color: var(--tinta); cursor: pointer; text-decoration: none; flex: none; }
.volver:hover, .icono-boton:hover { background: var(--fondo-suave); }
.progreso { height: 6px; background: var(--fondo-suave); border-radius: 3px; overflow: hidden; margin-top: -8px; }
.progreso span { display: block; height: 100%; background: var(--primario); border-radius: 3px; transition: width 0.25s; }

/* Avatar */
.avatar { border-radius: 50%; object-fit: cover; flex: none; }
.avatar-vacio { display: inline-flex; align-items: center; justify-content: center; background: var(--fondo-suave); color: var(--primario); font-weight: 800; }

/* Botones */
.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 54px; padding: 12px 20px; width: 100%;
  border: 0; border-radius: 16px; background: var(--primario); color: var(--blanco);
  font-weight: 800; font-size: 17px; text-decoration: none; cursor: pointer; text-align: center;
}
.boton:hover { background: var(--primario-oscuro); }
.boton:disabled { background: #B9A99A; cursor: not-allowed; }
.boton-sec { background: var(--blanco); color: var(--primario); border: 2px solid var(--primario); }
.boton-sec:hover { background: var(--fondo-suave); }
.boton-rojo { background: var(--sem-rojo); }
.boton-rojo:hover { background: #A31F1F; }
.boton-claro { background: var(--miel); color: var(--primario); }
.boton-claro:hover { background: #F5B21C; }
.enlace { display: inline-flex; align-items: center; gap: 6px; background: none; border: 0; padding: 8px 0; color: var(--primario); font-weight: 700; cursor: pointer; text-decoration: none; min-height: 44px; }
.enlace.chico { font-size: 13px; min-height: 32px; padding: 4px 0; }
:focus-visible { outline: 3px solid #F59E0B; outline-offset: 2px; }

/* Tarjetas */
.tarjeta { background: var(--blanco); border-radius: var(--radio); padding: 18px; box-shadow: var(--sombra); display: flex; flex-direction: column; gap: 12px; }
.tarjeta-cabeza { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.tarjeta-grave { background: var(--primario); color: var(--blanco); border-radius: 24px; padding: 22px 20px 20px; display: flex; flex-direction: column; gap: 10px; }
.tarjeta-grave h1 { font-size: 26px; }
.tarjeta-grave p { color: #F3E6D3; }
.tarjeta-grave .boton { margin-top: 6px; }

/* Listas */
.lista { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.lista li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-top: 1px solid #F1E6CC; }
.lista li:first-child { border-top: 0; padding-top: 0; }
.lista li > div { display: flex; flex-direction: column; min-width: 0; }
.lista .derecha { align-items: flex-end; text-align: right; flex: none; }
.cuando { font-weight: 800; font-size: 14px; color: var(--primario-oscuro); white-space: nowrap; }
.cuando.vencida { color: #B23A27; }

/* Bienvenida */
.bienvenida { display: flex; flex-direction: column; gap: 18px; padding-top: 20px; }
.marca-grande { display: flex; align-items: center; gap: 12px; font-family: "Young Serif", Georgia, serif; font-size: 40px; }
.titular { font-size: 32px; }
.beneficios { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
.beneficios li { display: flex; gap: 14px; align-items: flex-start; }
.beneficios li > svg { flex: none; width: 40px; height: 40px; padding: 9px; border-radius: 12px; background: var(--fondo-suave); color: var(--primario); }
.beneficios div { display: flex; flex-direction: column; }
.beneficios span { color: var(--suave); }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--suave); cursor: pointer; }
.check input { width: 22px; height: 22px; accent-color: var(--primario); flex: none; margin: 1px 0 0; }

/* Formularios */
.form { display: flex; flex-direction: column; gap: 16px; }
.campo { display: flex; flex-direction: column; gap: 8px; border: 0; padding: 0; margin: 0; min-width: 0; }
.campo > span, .campo legend { font-weight: 700; font-size: 15px; padding: 0; margin-bottom: 8px; }
.campo legend + * { margin-top: 0; }
input[type="text"], input:not([type]), input[type="email"], input[type="number"], input[type="date"], textarea {
  width: 100%; min-height: 52px; padding: 12px 14px; border: 1.5px solid var(--borde); border-radius: 14px; background: var(--blanco); font-size: 17px;
}
textarea { resize: vertical; min-height: 88px; }
input:focus, textarea:focus { border-color: var(--primario); outline: none; box-shadow: 0 0 0 3px rgba(255, 194, 61, 0.45); }
.fila { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.mini-campo { display: flex; align-items: center; gap: 10px; }
.mini-campo input { flex: 1; min-width: 0; }
.mini-campo span { color: var(--suave); font-weight: 700; }
.opciones { display: flex; flex-wrap: wrap; gap: 8px; }
.opciones.dos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.opcion { position: relative; flex: 1 1 auto; }
.opcion input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.opcion span { display: flex; align-items: center; justify-content: center; text-align: center; min-height: 48px; padding: 8px 14px; border: 1.5px solid var(--borde); border-radius: 14px; background: var(--blanco); font-weight: 700; font-size: 15px; }
.opcion input:checked + span { background: var(--primario); border-color: var(--primario); color: var(--blanco); }
.opcion input:focus-visible + span { outline: 3px solid #F59E0B; outline-offset: 2px; }
.pregunta { gap: 0; }
.foto-perfil { display: flex; align-items: center; gap: 16px; }
.error { color: #A31F1F; font-weight: 700; font-size: 15px; }
.ok { display: flex; align-items: center; gap: 8px; color: var(--sem-verde); font-weight: 800; }

/* Chips de síntomas */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { min-height: 46px; padding: 10px 16px; border-radius: 999px; border: 1.5px solid var(--borde); background: var(--blanco); font-weight: 700; font-size: 15px; cursor: pointer; }
.chip[aria-pressed="true"], .chip.activo { background: var(--primario); border-color: var(--primario); color: var(--blanco); }
.selector { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 2px; margin-top: -4px; }
.selector .chip { flex: none; min-height: 40px; padding: 6px 14px; }

/* Alarmas */
.alarmas { display: flex; flex-direction: column; gap: 8px; }
.alarma { display: flex; gap: 12px; align-items: flex-start; text-align: left; padding: 14px; border-radius: 14px; border: 1.5px solid var(--borde); background: var(--blanco); cursor: pointer; font-weight: 600; font-size: 15px; line-height: 1.35; min-height: 52px; }
.alarma svg { flex: none; width: 24px; height: 24px; padding: 3px; border-radius: 6px; border: 2px solid #B9A99A; color: transparent; margin-top: -1px; }
.alarma[aria-pressed="true"] { border-color: var(--sem-rojo); background: #FDECEA; }
.alarma[aria-pressed="true"] svg { background: var(--sem-rojo); border-color: var(--sem-rojo); color: var(--blanco); }
.pie-fijo { position: sticky; bottom: 0; padding: 12px 0 4px; background: linear-gradient(rgba(255, 251, 240, 0), var(--fondo) 30%); }

/* Fotos */
.fotos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.foto { position: relative; aspect-ratio: 1; border-radius: 14px; overflow: hidden; background: var(--fondo-suave); }
.foto img { width: 100%; height: 100%; object-fit: cover; }
.foto.grande { grid-column: 1 / -1; aspect-ratio: 4 / 3; }
.foto-guia { grid-column: 1 / -1; aspect-ratio: 4 / 3; border-radius: 18px; border: 2px dashed var(--borde); background: var(--blanco); display: flex; align-items: center; justify-content: center; color: var(--primario); }
.quitar { position: absolute; top: 6px; right: 6px; width: 32px; height: 32px; border-radius: 16px; border: 0; background: rgba(43, 31, 23, 0.75); color: var(--blanco); display: flex; align-items: center; justify-content: center; cursor: pointer; }
.botones-foto { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.botones-foto .boton { font-size: 15px; padding: 10px; }

/* Analizando */
.analizando, .error-pantalla { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 14px; min-height: 80dvh; }
.error-pantalla { justify-content: flex-start; padding-top: 40px; text-align: left; align-items: stretch; }
.latido { animation: latido 1.4s ease-in-out infinite; }
@keyframes latido { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.08); } }
@media (prefers-reduced-motion: reduce) { .latido { animation: none; } }

/* Semáforo */
.pill { align-self: flex-start; display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; font-weight: 800; font-size: 14px; }
.pill .punto { width: 10px; height: 10px; border-radius: 5px; background: currentColor; }
.pill-verde { background: var(--sem-verde); color: var(--blanco); }
.pill-amarillo { background: var(--sem-amarillo); color: var(--sem-amarillo-texto); }
.pill-rojo { background: var(--sem-rojo); color: var(--blanco); }
.resultado { border-radius: 24px; padding: 20px; display: flex; flex-direction: column; gap: 12px; background: var(--blanco); box-shadow: var(--sombra); border-top: 8px solid var(--sem-verde); }
.resultado.nivel-amarillo { border-top-color: var(--sem-amarillo); }
.resultado.nivel-rojo { border-top-color: var(--sem-rojo); background: #FFF6F5; }
.resultado h1 { font-size: 28px; }
.foto-resultado { border-radius: 14px; max-height: 220px; width: 100%; object-fit: cover; }
.nota-foto { font-size: 15px; color: var(--suave); }
.pasos, .vigilar { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 8px; }
.vigilar li::marker { color: var(--sem-rojo); }
.aviso { text-align: center; font-size: 13px; color: var(--suave); }
.aviso-urgencia ul { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }

/* Chequeo */
.zonas { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.zonas li { display: flex; gap: 12px; align-items: flex-start; }
.zonas img { width: 64px; height: 64px; border-radius: 12px; object-fit: cover; flex: none; }
.zonas li > div { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.zona-cabeza { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.estado { font-size: 13px; font-weight: 800; padding: 3px 10px; border-radius: 999px; }
.estado-verde { background: #DCF2E4; color: #14532D; }
.estado-amarillo { background: #FDF0C2; color: var(--sem-amarillo-texto); }
.estado-gris { background: #E8ECEB; color: #3F4A48; }

/* Ficha */
.perfil { display: flex; align-items: center; gap: 14px; }
.perfil > div { flex: 1; min-width: 0; }

/* Historial */
.historial { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.historial a { display: flex; align-items: center; gap: 12px; padding: 12px; background: var(--blanco); border-radius: 16px; box-shadow: var(--sombra); text-decoration: none; color: var(--tinta); }
.historial img, .sin-foto { width: 52px; height: 52px; border-radius: 12px; object-fit: cover; flex: none; }
.sin-foto { display: flex; align-items: center; justify-content: center; background: var(--fondo-suave); color: var(--primario); }
.historial a > div { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.historial strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.punto-nivel { width: 14px; height: 14px; border-radius: 7px; flex: none; }
.punto-verde { background: var(--sem-verde); }
.punto-amarillo { background: var(--sem-amarillo); }
.punto-rojo { background: var(--sem-rojo); }

/* Plan y fundadores */
.plan { display: flex; flex-direction: column; gap: 16px; }
.precio { font-family: "Young Serif", Georgia, serif; font-size: 30px; }
.fundador { background: var(--fondo-suave); box-shadow: none; }
.fila-form { flex-direction: row; align-items: flex-end; gap: 8px; }
.fila-form .campo { flex: 1; }
.fila-form .boton { width: auto; flex: none; }

/* Navegación inferior */
.navbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 480px; margin: 0 auto;
  background: var(--blanco); border-top: 1px solid #F1E6CC;
  padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
}
.tab { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 0; min-height: 52px; text-decoration: none; color: #6B5444; font-size: 12px; font-weight: 700; border-radius: 12px; }
.tab.activo { color: var(--primario); background: var(--fondo-suave); }

.toast { position: fixed; left: 50%; bottom: calc(96px + env(safe-area-inset-bottom)); transform: translateX(-50%); background: var(--tinta); color: var(--blanco); padding: 12px 18px; border-radius: 14px; font-weight: 700; font-size: 15px; z-index: 20; max-width: calc(100% - 32px); box-shadow: var(--sombra); }

@media (min-width: 520px) {
  .pantalla { padding-top: 28px; }
}

/* Cuenta y plan */
.barra-derecha { display: flex; align-items: center; gap: 4px; min-width: 0; }
.planes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.plan-opcion { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; text-align: left; padding: 16px 14px; border-radius: 16px; border: 2px solid var(--borde); background: var(--blanco); cursor: pointer; min-height: 110px; }
.plan-opcion strong { font-family: "Young Serif", Georgia, serif; font-weight: 400; font-size: 21px; line-height: 1.15; }
.plan-opcion.destacado { border-color: var(--primario); background: var(--fondo-suave); }
.plan-opcion:disabled { opacity: 0.6; cursor: wait; }
.etiqueta { font-size: 12px; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; background: var(--miel); color: var(--primario); padding: 3px 8px; border-radius: 999px; }
.codigo { font-size: 26px !important; letter-spacing: 0.35em; text-align: center; }

/* Entrar con Google */
.google { display: flex; justify-content: center; min-height: 44px; margin: 18px 0 4px; }
.separador { display: flex; align-items: center; gap: 12px; color: var(--suave, #6B5444); font-size: 14px; margin: 14px 0 6px; }
.separador::before, .separador::after { content: ""; flex: 1; height: 1px; background: rgba(59, 42, 32, .15); }
.centro { text-align: center; }
.google[hidden], .separador[hidden] { display: none; }