/* ============================================================
   GasoPrecio — Comparador de precios de carburantes
   Identidad: comparador de precios claro y corporativo.
   Blanco + azul, tarjetas limpias, tipografía Inter.
   ============================================================ */

:root {
  --bg:            #F5F7FA;
  --superficie:    #FFFFFF;
  --borde:         #E3E7EE;
  --borde-fuerte:  #C7CEDA;

  --azul:          #1857D6;
  --azul-oscuro:   #0F3FA3;
  --azul-claro:    #EAF1FF;

  --verde:         #0E9F6E;
  --verde-claro:   #E5F8F0;
  --rojo:          #DC2626;
  --rojo-claro:    #FDEBEB;

  --texto:         #16202E;
  --texto-sec:     #5B6572;
  --texto-terciario:#8A93A1;

  --f-body: 'Inter', system-ui, sans-serif;

  --radio: 12px;
  --radio-sm: 8px;
  --sombra: 0 1px 2px rgba(16,24,40,0.05), 0 4px 14px rgba(16,24,40,0.06);
  --sombra-hover: 0 2px 4px rgba(16,24,40,0.06), 0 8px 22px rgba(16,24,40,0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--texto);
  font-family: var(--f-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--azul); }

:focus-visible {
  outline: 2px solid var(--azul);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- Topbar ---------- */

.topbar {
  background: var(--superficie);
  border-bottom: 1px solid var(--borde);
}

.topbar__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px clamp(16px, 4vw, 40px);
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar__logo { font-size: 22px; }

.topbar__name {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--texto);
}

.topbar__tag {
  margin: 0;
  color: var(--texto-sec);
  font-size: 13px;
}

/* ---------- Stats (resumen) ---------- */

.stats {
  max-width: 1180px;
  margin: 20px auto 0;
  padding: 0 clamp(16px, 4vw, 40px);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.stat-card {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--sombra);
}

.stat-card--highlight {
  border-color: var(--azul);
  background: var(--azul-claro);
}

.stat-card__label {
  font-size: 12.5px;
  color: var(--texto-sec);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.stat-card__value {
  font-size: 30px;
  font-weight: 800;
  color: var(--texto);
  font-variant-numeric: tabular-nums;
  transition: opacity 0.2s ease;
}

.stat-card--highlight .stat-card__value { color: var(--azul-oscuro); }

.stat-card__sub {
  font-size: 13px;
  color: var(--texto-sec);
}

.filters__row--direccion { position: relative; }

.filters__o {
  color: var(--texto-terciario);
  font-size: 12.5px;
  white-space: nowrap;
  padding-bottom: 10px;
}

.direccion-sugerencias {
  max-width: 1180px;
  margin: -4px auto 0;
  padding: 0;
  list-style: none;
  background: var(--superficie);
  border: 1px solid var(--borde-fuerte);
  border-radius: var(--radio-sm);
  box-shadow: var(--sombra-hover);
  position: relative;
  z-index: 30;
}

.direccion-sugerencias li {
  padding: 10px 14px;
  font-size: 13.5px;
  cursor: pointer;
  border-bottom: 1px solid var(--borde);
}
.direccion-sugerencias li:last-child { border-bottom: none; }
.direccion-sugerencias li:hover { background: var(--azul-claro); }

/* ---------- Filtros ---------- */

.filters {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--borde);
  margin-top: 20px;
  padding: 14px clamp(16px, 4vw, 40px);
}

.filters__row {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: end;
}

.filters__row + .filters__row { margin-top: 10px; }

.filters__row--actions { align-items: center; }

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 150px;
}

.field--grow { flex: 1 1 220px; }
.field--radio { min-width: 100px; }
.field--orden { min-width: 150px; }

.field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--texto-sec);
}

select, input[type="text"], input[type="number"] {
  background: var(--superficie);
  border: 1px solid var(--borde-fuerte);
  color: var(--texto);
  border-radius: var(--radio-sm);
  padding: 9px 11px;
  font-size: 14px;
  font-family: var(--f-body);
}

select:focus, input:focus {
  border-color: var(--azul);
}

select:disabled { color: var(--texto-terciario); background: var(--bg); }

.btn {
  border-radius: var(--radio-sm);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-body);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn--primary {
  background: var(--azul);
  color: #fff;
}
.btn--primary:hover { background: var(--azul-oscuro); }

.btn--ghost {
  background: var(--superficie);
  border-color: var(--borde-fuerte);
  color: var(--texto);
}
.btn--ghost:hover { border-color: var(--azul); color: var(--azul); }
.btn--ghost.is-active {
  border-color: var(--verde);
  color: var(--verde);
  background: var(--verde-claro);
}

.view-toggle {
  display: inline-flex;
  border: 1px solid var(--borde-fuerte);
  border-radius: var(--radio-sm);
  overflow: hidden;
  margin-left: auto;
}

.view-toggle__btn {
  background: var(--superficie);
  color: var(--texto-sec);
  border: none;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--f-body);
}

.view-toggle__btn.is-active {
  background: var(--azul-claro);
  color: var(--azul-oscuro);
}

/* ---------- Resultados ---------- */

.results {
  max-width: 1180px;
  margin: 0 auto;
  padding: 20px clamp(16px, 4vw, 40px) 60px;
  min-height: 40vh;
}

.results__meta {
  color: var(--texto-sec);
  font-size: 13px;
  margin-bottom: 14px;
}

.results__list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.card {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--sombra);
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.card:hover { box-shadow: var(--sombra-hover); }

.card.is-barato { border-color: var(--verde); }
.card.is-caro { border-left: 3px solid var(--rojo); }

.card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.card__rotulo {
  font-weight: 700;
  font-size: 16.5px;
  color: var(--texto);
}

.card__badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 20px;
  background: var(--verde-claro);
  color: var(--verde);
  white-space: nowrap;
}

.card__direccion {
  color: var(--texto-sec);
  font-size: 13px;
}

.card__precio-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 4px;
}

.card__precio {
  font-weight: 800;
  font-size: 26px;
  color: var(--azul);
  font-variant-numeric: tabular-nums;
}

.card__precio-unidad { color: var(--texto-terciario); font-size: 12px; }

.card__meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--texto-sec);
}

.card__distancia { color: var(--verde); font-weight: 700; }

.card__link {
  text-decoration: none;
  font-weight: 600;
  font-size: 12.5px;
}

.results__map {
  height: 65vh;
  border-radius: var(--radio);
  overflow: hidden;
  border: 1px solid var(--borde);
  box-shadow: var(--sombra);
}

.leaflet-popup-content b { color: var(--azul); }

/* ---------- Estados ---------- */

.state {
  text-align: center;
  padding: 60px 20px;
  color: var(--texto-sec);
}

.spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid var(--borde);
  border-top-color: var(--azul);
  border-radius: 50%;
  animation: girar 0.8s linear infinite;
  margin-bottom: 10px;
}

@keyframes girar { to { transform: rotate(360deg); } }

.state--error { color: var(--rojo); }

/* ---------- Footer ---------- */

.site-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px clamp(16px, 4vw, 40px) 36px;
  color: var(--texto-terciario);
  font-size: 12px;
  border-top: 1px solid var(--borde);
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .filters__row { flex-direction: column; align-items: stretch; }
  .field { min-width: 0; }
  .view-toggle { margin-left: 0; }
  .filters__row--actions { align-items: stretch; }
  .btn--primary { width: 100%; justify-content: center; }
}