:root {
  --bg-from: #89f7fe;
  --bg-to: #66a6ff;
  --azul: #0056b3;
  --azul-oscuro: #003f8a;
  --texto: #2b2f38;
  --card-bg: #ffffff;
  --radio: 12px;

  --linea-mitre: #2ea0da;
  --linea-sarmiento: #1f4e9c;
  --linea-roca: #00a99d;
  --linea-sanmartin: #43a047;
  --linea-belgranosur: #8e24aa;
  --linea-trendelacosta: #fb8c00;
  --linea-belgranonorte: #6b8f00;
  --linea-regionales: #757575;
  --linea-trenesterceros: #6d4c41;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  background: linear-gradient(120deg, var(--bg-from), var(--bg-to));
  background-attachment: fixed;
  color: var(--texto);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 24px 15px 60px;
}

h1 {
  color: #fff;
  text-shadow: 1px 2px 6px rgba(0, 0, 0, 0.25);
  font-size: 1.7rem;
  text-align: center;
  margin: 0;
}

.subtitulo {
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  font-size: 0.95rem;
  max-width: 360px;
  margin: 8px auto 22px;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.2);
}

main {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

/* Estado de login */
#loginStatus {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 18px;
  color: #fff;
  font-style: italic;
  text-align: center;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: girar 0.8s linear infinite;
  flex-shrink: 0;
}

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

#reintentarBtn {
  margin-top: 6px;
  padding: 8px 16px;
  font-size: 0.9rem;
  width: auto;
}

/* Tarjeta principal de busqueda */
.tarjeta-busqueda {
  background: var(--card-bg);
  border-radius: var(--radio);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  padding: 20px;
}

.modo-busqueda {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
}

.modo-chip {
  flex: 1;
  width: auto;
  padding: 9px;
  font-size: 0.85rem;
  border-radius: 10px;
  background: #eef4ff;
  color: var(--azul);
}

.modo-chip:hover {
  background: #dbe7ff;
}

.modo-chip.activo {
  background: var(--azul);
  color: #fff;
}

.fila-fecha-hora {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.fila-fecha-hora > div {
  flex: 1;
}

.fila-fecha-hora input {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  border: 1.5px solid #dfe5ee;
  border-radius: 10px;
  box-sizing: border-box;
  background: #f8fafc;
}

/* Banner de ultima busqueda */
#ultimaBusqueda {
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radio);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  padding: 16px 18px;
  margin-bottom: 16px;
  text-align: center;
}

#ultimaBusqueda p {
  margin: 0 0 12px;
  font-size: 0.95rem;
}

#ultimaBusqueda .trayecto {
  font-weight: bold;
  color: var(--azul);
}

#ultimaBusqueda .acciones {
  display: flex;
  gap: 8px;
}

#ultimaBusqueda .acciones button {
  flex: 1;
}

#cambiarEstacionesBtn {
  background: #e9eef5;
  color: var(--azul);
}

#cambiarEstacionesBtn:hover {
  background: #dbe4f0;
}

label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 600;
  font-size: 0.9rem;
  color: #4a5568;
  text-align: left;
}

.campo-busqueda {
  position: relative;
}

.campo-busqueda input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  border: 1.5px solid #dfe5ee;
  border-radius: 10px;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s ease;
  background: #f8fafc;
}

.campo-busqueda input[type="text"]:focus {
  border-color: var(--azul);
  background: #fff;
}

.panel-busqueda {
  position: absolute;
  z-index: 20;
  top: 100%;
  left: 0;
  right: 0;
  margin: 4px 0 0;
  padding: 8px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
  max-height: 320px;
  overflow-y: auto;
}

.chips-fila {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-bottom: 6px;
}

.chips-fila:empty {
  display: none;
}

.chip {
  border: none;
  width: auto;
  padding: 7px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 20px;
  background: #eef4ff;
  color: var(--azul);
  cursor: pointer;
  white-space: nowrap;
}

.chip:hover {
  background: #dbe7ff;
}

.chip-volver {
  background: #f1f1f1;
  color: #555;
}

.chip-volver:hover {
  background: #e3e3e3;
}

.autocomplete-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.autocomplete-list:empty {
  display: none;
}

.autocomplete-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.95rem;
  text-align: left;
}

.autocomplete-list li:hover,
.autocomplete-list li.activo {
  background: #eef4ff;
}

.autocomplete-list .sin-resultados {
  color: #888;
  cursor: default;
  justify-content: center;
}

.autocomplete-list .sin-resultados:hover {
  background: none;
}

.badge-linea {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.nombre-estacion {
  flex: 1;
}

/* Boton de intercambio origen/destino */
.fila-swap {
  display: flex;
  justify-content: center;
  margin: 4px 0;
}

#botonEspecial {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  font-size: 1.2rem;
  border: none;
  border-radius: 50%;
  background: #e9eef5;
  color: var(--azul);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}

#botonEspecial:hover {
  background: #dbe4f0;
  transform: rotate(180deg);
}

button {
  cursor: pointer;
  background: var(--azul);
  color: #fff;
  font-weight: bold;
  border: none;
  border-radius: 10px;
  padding: 12px;
  font-size: 1rem;
  width: 100%;
  transition: background 0.2s ease;
}

button:hover {
  background: var(--azul-oscuro);
}

button:disabled {
  background: #b9c4d3;
  cursor: not-allowed;
}

#buscarBtn {
  margin-top: 18px;
}

/* Resultados */
#result {
  margin-top: 18px;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#result.ocultar {
  display: none;
}

.horario {
  background: var(--card-bg);
  border-radius: var(--radio);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
  padding: 16px 18px;
  text-align: left;
  border-left: 5px solid var(--azul);
  animation: aparecer 0.25s ease;
}

@keyframes aparecer {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.horarioH3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  color: var(--azul);
}

.horario p {
  margin: 4px 0;
  font-size: 0.9rem;
  color: #555;
}

.horario h2 {
  margin: 10px 0 0;
  font-size: 1.3rem;
  color: var(--texto);
}

.andenH4 {
  margin: 6px 0 0;
  font-size: 0.95rem;
  color: #777;
}

.mensaje-vacio {
  background: var(--card-bg);
  border-radius: var(--radio);
  padding: 18px;
  text-align: center;
  color: #666;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.mapa {
  width: 100%;
  height: 260px;
  margin-top: 12px;
  border-radius: 10px;
  overflow: hidden;
}

.boton-mapa {
  margin-top: 10px;
  padding: 8px 14px;
  width: auto;
  font-size: 0.85rem;
  background: #e9eef5;
  color: var(--azul);
}

.boton-mapa:hover {
  background: #dbe4f0;
}

.ocultar {
  display: none !important;
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.9rem;
  }
}