/* ===========================================================
   NutriDiver — Editorial design (Lifesum-Yazio inspired)
   Foto top en cada card, tipografía con peso heavy, aire amplio.
   =========================================================== */

:root {
  /* Paleta */
  --verde: #2F7A4E;
  --verde-osc: #1F5535;
  --verde-suave: #EAF4EE;
  --verde-grad: linear-gradient(135deg, #2F7A4E 0%, #3F9A65 100%);

  --rojo: #C0392B;
  --rojo-suave: #FBEAE8;
  --azul: #2E5C8A;
  --azul-suave: #E8F0F9;
  --naranja: #B85B26;
  --naranja-suave: #FCEDE2;

  --fondo: #F7F6F4;
  --tarjeta: #FFFFFF;
  --borde: #ECECE8;
  --borde-suave: #F3F2EF;

  --texto: #111110;
  --texto-medio: #4A4A47;
  --texto-suave: #7A7A75;
  --texto-disabled: #B5B5B0;

  --negro: #111110;

  /* Tipografía */
  --t-xs:   11px;
  --t-sm:   13px;
  --t-md:   15px;
  --t-base: 17px;
  --t-lg:   22px;
  --t-xl:   28px;
  --t-xxl:  34px;

  /* Espaciado 4px */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;

  /* Radios — editorial usa esquinas amplias */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  /* Sombras */
  --sombra-sutil: 0 1px 2px rgba(17,17,16,.04), 0 1px 1px rgba(17,17,16,.02);
  --sombra-card: 0 2px 8px rgba(17,17,16,.06), 0 1px 2px rgba(17,17,16,.04);
  --sombra-elev: 0 12px 32px rgba(17,17,16,.10), 0 4px 12px rgba(17,17,16,.06);
}

:root.dark {
  --fondo: #0E0F0E;
  --tarjeta: #181A18;
  --borde: #262826;
  --borde-suave: #1F211F;
  --texto: #F5F5F2;
  --texto-medio: #C5C5C0;
  --texto-suave: #8A8A85;
  --texto-disabled: #555550;
  --negro: #F5F5F2;
  --verde-suave: #1A3324;
  --rojo-suave: #3E1A16;
  --azul-suave: #1A2A3D;
  --naranja-suave: #3D2418;
  --sombra-card: 0 2px 12px rgba(0,0,0,.4);
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--fondo);
  color: var(--texto);
  /* Fuente del sistema con fallbacks editoriales */
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
               "Helvetica Neue", Inter, "Segoe UI", system-ui, sans-serif;
  font-size: var(--t-md);
  line-height: 1.45;
  letter-spacing: -.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior-y: contain;
  font-feature-settings: 'ss01' on, 'cv11' on;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  color: var(--texto);
  letter-spacing: -.022em;
  line-height: 1.15;
}

/* Focus accesible */
button { outline: none; border: 0; background: transparent; color: inherit; font: inherit; cursor: pointer; }
:focus-visible {
  outline: 2px solid var(--verde);
  outline-offset: 3px;
  border-radius: 6px;
}

img { display: block; max-width: 100%; }
svg.ic { display: inline-block; vertical-align: middle; flex-shrink: 0; }

/* ============ APP SHELL ============ */
.app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-bottom: 90px;
  position: relative;
}

/* ============ TOPBAR ============ */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px var(--s-4) 14px;
  background: rgba(247, 246, 244, .85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--borde-suave);
  position: sticky;
  top: 0;
  z-index: 50;
}
:root.dark .topbar { background: rgba(14, 15, 14, .85); }

.topbar .saludo h1 {
  font-size: var(--t-lg);
  font-weight: 800;
  letter-spacing: -.03em;
}
.topbar .saludo .sub {
  font-size: var(--t-sm);
  color: var(--texto-suave);
  font-weight: 500;
  margin-top: 2px;
  letter-spacing: -.005em;
}

.btn-cta {
  background: var(--negro);
  color: var(--tarjeta);
  padding: 9px 16px;
  min-height: 38px;
  border-radius: var(--r-pill);
  font-family: inherit;
  font-weight: 600;
  font-size: var(--t-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: transform .12s ease, opacity .15s ease;
  letter-spacing: -.01em;
}
:root.dark .btn-cta { background: var(--tarjeta); color: var(--negro); }
.btn-cta:active { transform: scale(.96); }
.btn-cta:hover { opacity: .92; }
.btn-cta svg { width: 14px; height: 14px; }

/* ============ MAIN ============ */
main { flex: 1; padding: 0; }

.pantalla {
  display: none;
  padding: var(--s-4) var(--s-4) var(--s-6);
  animation: fadeIn .25s ease;
}
.pantalla.activa { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.pantalla-titulo {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-4);
}
.pantalla-titulo h2 { font-size: var(--t-xl); font-weight: 800; letter-spacing: -.03em; }
.pantalla-titulo .back {
  width: 40px; height: 40px;
  margin-left: -8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--texto);
  transition: background .15s ease;
}
.pantalla-titulo .back:hover { background: var(--borde-suave); }

/* ============ SECCIÓN TITULAR ============ */
.seccion-titulo {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--texto-suave);
  font-weight: 700;
  margin: var(--s-5) 0 var(--s-3);
}
.seccion-titulo:first-child { margin-top: 0; }
.seccion-titulo svg { width: 14px; height: 14px; }
.seccion-titulo.verde { color: var(--verde); }

/* ============ HERO HOME ============ */
.hero-home {
  margin: var(--s-2) 0 var(--s-5);
}
.hero-home h2 {
  font-size: var(--t-xxl);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.05;
  margin-bottom: var(--s-2);
}
.hero-home p {
  font-size: var(--t-md);
  color: var(--texto-suave);
  margin: 0;
}

/* ============ HERO CARDS (acción principal) ============ */
.hero-card {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  background: var(--tarjeta);
  border: 1px solid var(--borde-suave);
  border-radius: var(--r-lg);
  padding: var(--s-4) var(--s-4) var(--s-4) var(--s-3);
  margin-bottom: var(--s-3);
  cursor: pointer;
  box-shadow: var(--sombra-card);
  width: 100%;
  text-align: left;
  font-family: inherit;
  color: var(--texto);
  transition: transform .18s ease, box-shadow .18s ease;
}
.hero-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra-elev);
}
.hero-card:active { transform: scale(.98); }
.hero-card .ico-wrap {
  width: 52px; height: 52px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hero-card.verde .ico-wrap { background: var(--verde-suave); color: var(--verde-osc); }
.hero-card.rojo  .ico-wrap { background: var(--rojo-suave);  color: var(--rojo); }
.hero-card svg.icono-grande { width: 26px; height: 26px; }
.hero-card .txt { flex: 1; min-width: 0; }
.hero-card .txt .t {
  font-size: var(--t-base);
  font-weight: 700;
  margin-bottom: 2px;
  letter-spacing: -.015em;
}
.hero-card .txt .s {
  font-size: var(--t-sm);
  color: var(--texto-suave);
  letter-spacing: -.005em;
}
.hero-card .chev { color: var(--texto-disabled); }
.hero-card .chev svg { width: 18px; height: 18px; }

/* ============ MEAL CARD EDITORIAL ============ */
.meal-card {
  background: var(--tarjeta);
  border-radius: var(--r-lg);
  margin-bottom: var(--s-3);
  overflow: hidden;
  border: 1px solid var(--borde-suave);
  box-shadow: var(--sombra-card);
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease;
}
.meal-card:hover { box-shadow: var(--sombra-elev); transform: translateY(-1px); }
.meal-card:active { transform: scale(.995); }

.meal-card .foto {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--verde-suave) center/cover no-repeat;
  position: relative;
  overflow: hidden;
}
.meal-card .foto::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.25));
  pointer-events: none;
}
.meal-card .foto.cargando { background: linear-gradient(90deg, #f0efeb 0%, #f7f6f4 50%, #f0efeb 100%); background-size: 200% 100%; animation: shimmer 1.4s infinite; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

.meal-card .foto .badge {
  position: absolute;
  bottom: var(--s-3);
  left: var(--s-3);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--negro);
  padding: 5px 10px;
  border-radius: var(--r-pill);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.meal-card .foto .badge svg { width: 12px; height: 12px; }
.meal-card .foto .swap {
  position: absolute;
  top: var(--s-3);
  right: var(--s-3);
  width: 36px; height: 36px;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--texto);
  transition: transform .15s ease;
  z-index: 2;
}
.meal-card .foto .swap:hover { transform: rotate(180deg) scale(1.08); }
.meal-card .foto .swap svg { width: 16px; height: 16px; }

.meal-card .info {
  padding: var(--s-3) var(--s-4) var(--s-4);
}
.meal-card .info .titulo {
  font-size: var(--t-base);
  font-weight: 700;
  letter-spacing: -.015em;
  margin-bottom: 6px;
  line-height: 1.25;
}
.meal-card .info .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--t-xs);
  background: var(--borde-suave);
  color: var(--texto-medio);
  padding: 4px 10px;
  border-radius: var(--r-pill);
  font-weight: 600;
  letter-spacing: -.005em;
}
.tag svg { width: 12px; height: 12px; }
.tag.verde { background: var(--verde-suave); color: var(--verde-osc); }

/* Bloques de día del "resto de la semana" — cards con foto top pero un pelín más bajitas */
.bloque-dia { margin-bottom: var(--s-5); }
.bloque-dia-titulo {
  font-weight: 800;
  color: var(--texto);
  font-size: var(--t-lg);
  letter-spacing: -.025em;
  margin: var(--s-4) 0 var(--s-3);
}
.bloque-dia .meal-card .foto {
  aspect-ratio: 21 / 9;
}

/* Card abierta: muestra detalle */
.meal-card .detalle {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.meal-card.abierta .detalle { max-height: 800px; }
.meal-card .detalle .bloque {
  padding: 0 var(--s-4) var(--s-4);
}
.meal-card .detalle .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 700;
  color: var(--texto-suave);
  margin: var(--s-3) 0 6px;
}
.meal-card .detalle .ingredientes,
.meal-card .detalle .preparacion {
  font-size: var(--t-sm);
  color: var(--texto-medio);
  line-height: 1.5;
  margin: 0;
}

/* ============ QUICK ACTIONS ============ */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-2);
}
.qa {
  background: var(--tarjeta);
  border: 1px solid var(--borde-suave);
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease;
  box-shadow: var(--sombra-sutil);
}
.qa:hover { background: var(--borde-suave); }
.qa:active { transform: scale(.96); }
.qa .ico {
  width: 36px; height: 36px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.qa.azul    .ico { background: var(--azul-suave);    color: var(--azul); }
.qa.verde   .ico { background: var(--verde-suave);   color: var(--verde); }
.qa.naranja .ico { background: var(--naranja-suave); color: var(--naranja); }
.qa.rojo    .ico { background: var(--rojo-suave);    color: var(--rojo); }
.qa .label {
  font-size: var(--t-xs);
  font-weight: 600;
  color: var(--texto-medio);
  letter-spacing: -.005em;
}

/* ============ BOTONES ============ */
.btn {
  background: var(--negro);
  color: var(--tarjeta);
  padding: 13px 18px;
  min-height: 48px;
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: var(--t-md);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform .12s ease, opacity .15s ease;
  letter-spacing: -.015em;
}
:root.dark .btn { background: var(--tarjeta); color: var(--negro); }
.btn:hover { opacity: .92; }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.full { width: 100%; }
.btn.secundario {
  background: var(--tarjeta);
  color: var(--texto);
  border: 1px solid var(--borde);
}
:root.dark .btn.secundario { background: var(--tarjeta); color: var(--texto); }
.btn.verde { background: var(--verde-grad); color: white; }
.btn.rojo  { background: var(--rojo); color: white; }
.btn.ghost { background: transparent; color: var(--texto-medio); padding: 8px 14px; min-height: auto; }
.btn svg { width: 16px; height: 16px; }

.acciones {
  display: flex;
  gap: var(--s-2);
  margin: var(--s-3) 0;
}
.acciones .btn { flex: 1; padding: 12px; font-size: var(--t-sm); }

/* ============ FORMULARIOS ============ */
.tarjeta {
  background: var(--tarjeta);
  border: 1px solid var(--borde-suave);
  border-radius: var(--r-lg);
  padding: var(--s-4);
  margin-bottom: var(--s-3);
  box-shadow: var(--sombra-card);
}
.tarjeta h3 {
  font-size: var(--t-base);
  margin-bottom: var(--s-2);
  font-weight: 700;
  letter-spacing: -.015em;
}
.tarjeta .meta {
  font-size: var(--t-sm);
  color: var(--texto-suave);
  margin: 0 0 var(--s-3);
  line-height: 1.5;
}

form .campo { margin-bottom: var(--s-3); }
form label {
  display: block;
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--texto-medio);
  margin-bottom: 6px;
  letter-spacing: -.005em;
}
form input[type="text"], form input[type="number"], form input[type="time"], form input[type="password"],
form select, form textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--borde);
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: var(--t-md);
  background: var(--fondo);
  color: var(--texto);
  transition: border-color .15s ease, background .15s ease;
  letter-spacing: -.005em;
}
form input:focus, form select:focus, form textarea:focus {
  outline: none;
  border-color: var(--verde);
  background: var(--tarjeta);
}
form .chk {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: var(--t-md);
  min-height: 44px;
  cursor: pointer;
}
form .chk input { width: 20px; height: 20px; accent-color: var(--verde); cursor: pointer; }
form input[type="file"] {
  background: transparent;
  border: 1.5px dashed var(--borde);
  padding: var(--s-4);
  text-align: center;
  cursor: pointer;
}

/* ============ AVISOS ============ */
.aviso {
  background: var(--rojo-suave);
  border-left: 3px solid var(--rojo);
  padding: var(--s-3) 14px;
  border-radius: var(--r-md);
  margin-bottom: var(--s-3);
  font-size: var(--t-sm);
  color: #6a1a14;
  line-height: 1.5;
  display: flex;
  gap: var(--s-2);
}
.aviso.info { background: var(--azul-suave); border-color: var(--azul); color: #0d3556; }
.aviso.ok   { background: var(--verde-suave); border-color: var(--verde); color: var(--verde-osc); }
:root.dark .aviso      { color: #ffbcb5; }
:root.dark .aviso.info { color: #b8d7f5; }
:root.dark .aviso.ok   { color: #b0e0bb; }
.aviso svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; }

/* ============ LOADER / EMPTY ============ */
.spinner {
  text-align: center;
  padding: var(--s-7) 0;
  color: var(--texto-suave);
  font-size: var(--t-sm);
}
.spinner::before {
  content: '';
  display: inline-block;
  width: 20px; height: 20px;
  border: 2.5px solid var(--borde);
  border-top-color: var(--verde);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  vertical-align: middle;
  margin-right: 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty {
  text-align: center;
  padding: var(--s-7) var(--s-4);
}
.empty .ico-empty {
  width: 80px; height: 80px;
  margin: 0 auto var(--s-3);
  border-radius: 50%;
  background: var(--verde-suave);
  color: var(--verde);
  display: flex;
  align-items: center;
  justify-content: center;
}
.empty .ico-empty svg { width: 40px; height: 40px; }
.empty h3 { margin-bottom: 6px; font-size: var(--t-base); }
.empty .meta { margin: 0 0 var(--s-4); color: var(--texto-suave); font-size: var(--t-sm); }

/* ============ LISTA COMPRA / DOCS ============ */
.lista-compra {
  list-style: none;
  padding: 0;
  margin: 0;
  columns: 2;
  column-gap: var(--s-3);
  font-size: var(--t-sm);
}
.lista-compra li {
  break-inside: avoid;
  padding: 5px 0;
  color: var(--texto-medio);
  display: flex;
  align-items: center;
  gap: 6px;
}

.lista-doc { list-style: none; padding: 0; margin: var(--s-3) 0 0; }
.lista-doc li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--borde-suave);
  font-size: var(--t-sm);
}
.lista-doc li:last-child { border: 0; }
.lista-doc .borrar {
  color: var(--rojo);
  cursor: pointer;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  transition: background .15s ease;
}
.lista-doc .borrar:hover { background: var(--rojo-suave); }

/* ============ TOGGLE / ALERTAS ============ */
.alertas-config .alerta-card {
  display: flex; align-items: center; gap: var(--s-3);
}
.alertas-config .alerta-card .ico-alerta {
  width: 40px; height: 40px;
  border-radius: var(--r-sm);
  background: var(--verde-suave);
  color: var(--verde);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.alertas-config .alerta-card .info { flex: 1; min-width: 0; }
.alertas-config .alerta-card h3 { font-size: var(--t-md); margin-bottom: 2px; }
.alertas-config .alerta-card .meta { font-size: var(--t-sm); margin: 0; }

.toggle {
  width: 50px; height: 30px;
  background: var(--borde);
  border-radius: var(--r-pill);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  transition: background .25s ease;
}
.toggle::after {
  content: '';
  position: absolute;
  width: 24px; height: 24px;
  background: white;
  border-radius: 50%;
  top: 3px; left: 3px;
  transition: transform .25s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.toggle.on { background: var(--verde); }
.toggle.on::after { transform: translateX(20px); }

/* ============ HEALTH ============ */
#health {
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--fondo);
  padding: var(--s-3);
  border-radius: var(--r-sm);
  margin: 0;
  overflow: auto;
  color: var(--texto-medio);
}

/* ============ MODAL ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: flex-end;
  justify-content: center;
  z-index: 200;
}
.modal-overlay.show { display: flex; animation: fadeIn .25s ease; }
.modal-sheet {
  background: var(--tarjeta);
  width: 100%;
  max-width: 480px;
  border-radius: var(--r-xl) var(--r-xl) 0 0;
  padding: var(--s-5) var(--s-4) var(--s-7);
  max-height: 88vh;
  overflow-y: auto;
  animation: slideUp .3s cubic-bezier(.16,.84,.44,1);
}
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
.modal-sheet .handle {
  width: 36px; height: 4px;
  background: var(--borde);
  border-radius: 2px;
  margin: -8px auto var(--s-4);
}
.modal-sheet h2 {
  font-size: var(--t-lg);
  margin-bottom: 4px;
  letter-spacing: -.025em;
}
.modal-sheet .sub {
  font-size: var(--t-sm);
  color: var(--texto-suave);
  margin-bottom: var(--s-4);
}
.template-option {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3);
  border: 1.5px solid var(--borde-suave);
  border-radius: var(--r-md);
  margin-bottom: 8px;
  cursor: pointer;
  background: var(--tarjeta);
  transition: border-color .15s ease, transform .12s ease, background .15s ease;
}
.template-option:hover { background: var(--fondo); }
.template-option:active { transform: scale(.99); }
.template-option.activa {
  border-color: var(--verde);
  background: var(--verde-suave);
}
.template-option .ico {
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  background: var(--verde-suave);
  color: var(--verde);
  flex-shrink: 0;
}
.template-option.activa .ico { background: white; }
.template-option .t { font-weight: 700; font-size: var(--t-md); letter-spacing: -.015em; }
.template-option .d { font-size: var(--t-sm); color: var(--texto-suave); margin-top: 2px; }

/* ============ TOAST ============ */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--negro);
  color: var(--tarjeta);
  padding: 11px 20px;
  border-radius: var(--r-pill);
  box-shadow: var(--sombra-elev);
  z-index: 300;
  opacity: 0;
  transition: opacity .25s ease, bottom .25s ease;
  pointer-events: none;
  font-size: var(--t-sm);
  font-weight: 600;
  letter-spacing: -.01em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
:root.dark .toast { background: var(--tarjeta); color: var(--negro); }
.toast.show { opacity: 1; bottom: 110px; }
.toast.error { background: var(--rojo); color: white; }
.toast svg { width: 14px; height: 14px; }

/* ============ TABBAR ============ */
.tabbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-top: 1px solid var(--borde-suave);
  display: flex;
  justify-content: space-around;
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
  z-index: 100;
  max-width: 480px;
  margin: 0 auto;
}
:root.dark .tabbar { background: rgba(24,26,24,.92); }

.tabbar .tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-family: inherit;
  font-size: 10px;
  color: var(--texto-suave);
  padding: 6px 8px;
  flex: 1;
  font-weight: 600;
  min-height: 48px;
  position: relative;
  transition: color .15s ease;
  letter-spacing: .01em;
}
.tabbar .tab svg { width: 22px; height: 22px; }
.tabbar .tab.activa { color: var(--verde); }
.tabbar .tab.activa::after {
  content: '';
  position: absolute;
  bottom: calc(env(safe-area-inset-bottom) + 2px);
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--verde);
  border-radius: 50%;
}