/* ==========================================
   ESTILOS CSS - CALCULADORA STEPPER
   ========================================== */

.micros-stepper-container {
  background: rgba(5, 11, 31, 0.65);
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  position: relative;
  color: #FFFFFF;
  text-align: left;
}

/* Barra de Progreso */
.stepper-progress-wrapper {
  width: 100%;
  height: 5px;
  background: rgba(255,255,255,0.05);
  position: relative;
}
.stepper-progress-fill {
  height: 100%;
  width: 20%;
  background: var(--accent, #88D1C4);
  box-shadow: 0 0 12px var(--accent, #88D1C4);
  transition: width 0.4s ease;
}

/* Cabecera */
.stepper-header {
  padding: 1.5rem 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.stepper-title {
  margin: 0;
  font-size: 1.5rem;
  font-family: var(--font-title, 'Space Grotesk', sans-serif);
  font-weight: 700;
}
.stepper-indicator {
  font-size: 0.9rem;
  color: var(--accent, #88D1C4);
  font-weight: 600;
  background: rgba(136, 209, 196, 0.15);
  padding: 0.4rem 1rem;
  border-radius: 20px;
}

/* Cuerpo de Pasos */
.stepper-body {
  position: relative;
  padding: 1.5rem 2rem;
}

/* Animaciones de Pasos - Eliminadas por pedido, se usa display block/none */
.stepper-step {
  display: none;
}
.stepper-step.active {
  display: block;
}
.step-description {
  color: rgba(255,255,255,0.7);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

/* Grilla de Unidades con Scroll Horizontal */
.unit-scroll-container {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 1.2rem;
  padding-bottom: 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--accent, #88D1C4) rgba(255,255,255,0.1);
}
.unit-scroll-container::-webkit-scrollbar {
  height: 8px;
}
.unit-scroll-container::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
}
.unit-scroll-container::-webkit-scrollbar-thumb {
  background: var(--accent, #88D1C4);
  border-radius: 10px;
}

.buses-grid {
  display: flex;
  gap: 30px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  padding-bottom: 20px;
}
.buses-grid::-webkit-scrollbar {
  height: 8px;
}
.buses-grid::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
}
.buses-grid::-webkit-scrollbar-thumb {
  background: rgba(136, 209, 196, 0.3);
  border-radius: 4px;
}

.unit-card {
  position: relative;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  overflow: hidden;
  flex: 0 0 calc(33.333% - 20px);
  min-width: 320px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  scroll-snap-align: center;
}
@media (max-width: 1000px) {
  .unit-card {
    flex: 0 0 calc(33.333% - 0.8rem);
  }
}
@media (max-width: 768px) {
  .unit-card {
    flex: 0 0 calc(50% - 0.6rem);
  }
}
@media (max-width: 500px) {
  .unit-card {
    flex: 0 0 100%;
  }
}
.unit-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(136, 209, 196, 0.2);
  border-color: var(--accent);
}
.unit-card.selected {
  border-color: var(--accent, #88D1C4);
  box-shadow: 0 0 20px rgba(136, 209, 196, 0.3);
  background: rgba(136, 209, 196, 0.05);
}
.stepper-body .unit-card::before {
  content: "";
  position: absolute;
  top: 15px;
  right: 15px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  z-index: 10;
  transition: all 0.3s ease;
  background: rgba(5, 11, 31, 0.8);
}
.stepper-body .unit-card.selected::before {
  content: '✔';
  background: #25D366;
  border-color: #25D366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  animation: checkPop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  box-shadow: 0 0 10px rgba(37, 211, 102, 0.5);
}

.unit-gallery {
  height: 140px;
  position: relative;
  overflow: hidden;
}
.unit-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0; left: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}
.unit-gallery img.active {
  opacity: 1;
  pointer-events: auto;
}

/* Flechitas del carrusel manual */
.gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  z-index: 10;
  transition: background 0.3s ease;
}
.gallery-nav:hover {
  background: var(--accent, #88D1C4);
  color: #050B1F;
}
.gallery-nav.prev { left: 8px; }
.gallery-nav.next { right: 8px; }

.unit-info {
  padding: 1rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.unit-info h3 {
  font-size: 1.1rem;
  margin: 0 0 0.5rem 0;
  color: #fff;
  font-family: var(--font-title);
  text-align: center;
}

/* Diferencial principal visible */
.unit-differential {
  font-size: 0.85rem;
  color: var(--accent, #88D1C4);
  text-align: center;
  margin-bottom: 0.8rem;
  font-weight: 600;
}

/* Botón expandir */
.btn-expand {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  margin: 0 auto;
  display: block;
  transition: all 0.3s ease;
}
.btn-expand:hover {
  background: rgba(255,255,255,0.1);
}

/* Lista oculta por defecto */
.unit-features-wrapper {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.unit-card.expanded .unit-features-wrapper {
  max-height: 300px;
  margin-top: 1rem;
}

.unit-features {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.4;
}
.unit-features li {
  margin-bottom: 0.3rem;
  display: flex;
  align-items: flex-start;
  gap: 6px;
}
.unit-features li::before {
  content: "▪️";
  font-size: 0.6rem;
  margin-top: 2px;
  color: var(--accent, #88D1C4);
}

/* Mensaje base de unidades */
.base-features-box {
  background: rgba(136, 209, 196, 0.1);
  border: 1px solid rgba(136, 209, 196, 0.3);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: #fff;
}
.base-features-box span {
  color: var(--accent, #88D1C4);
  font-weight: 600;
}

/* Botones de Evento */
.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.option-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: #fff;
  padding: 1rem;
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
}
.option-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}
.option-btn.selected {
  border-color: var(--accent, #88D1C4);
  background: rgba(136, 209, 196, 0.15);
  box-shadow: inset 0 0 10px rgba(136, 209, 196, 0.3);
}

/* Shows Circulares en dos filas */
.shows-circle-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem 1rem;
  justify-items: center;
}
@media (max-width: 900px) {
  .shows-circle-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 500px) {
  .shows-circle-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.show-avatar-checkbox {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  width: auto;
}
.show-avatar-checkbox input {
  display: none;
}
.show-avatar-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid transparent;
  transition: all 0.3s ease;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.show-avatar-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.show-avatar-checkbox input:checked + .show-avatar-circle {
  border-color: var(--accent, #88D1C4);
  box-shadow: 0 0 15px rgba(136, 209, 196, 0.5);
  transform: scale(1.05);
}
.show-avatar-checkbox h4 {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  text-align: center;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
  transition: color 0.3s ease;
}
.show-avatar-checkbox input:checked ~ h4 {
  color: var(--accent, #88D1C4);
  font-weight: 700;
}

/* Checkboxes Normales */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}
.custom-checkbox {
  display: flex;
  align-items: center;
  cursor: pointer;
  background: rgba(255,255,255,0.05);
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s ease;
  user-select: none;
  font-size: 0.95rem;
}
.custom-checkbox:hover {
  background: rgba(255, 255, 255, 0.1);
}
.custom-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}
.checkmark {
  width: 20px;
  height: 20px;
  background: rgba(255,255,255,0.1);
  border-radius: 6px;
  margin-right: 12px;
  position: relative;
  border: 1px solid rgba(255,255,255,0.2);
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.custom-checkbox input:checked ~ .checkmark {
  background: var(--accent, #88D1C4);
  border-color: var(--accent, #88D1C4);
  box-shadow: 0 0 8px rgba(136, 209, 196, 0.5);
}
.custom-checkbox input:checked ~ .checkmark:after {
  content: "✔";
  position: absolute;
  color: #050B1F;
  font-size: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: bold;
}
.custom-checkbox:has(input:checked) {
  border-color: var(--accent, #88D1C4);
  background: rgba(136, 209, 196, 0.1);
}

/* Layout inputs horizontales */
.horizontal-inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 600px) {
  .horizontal-inputs-grid {
    grid-template-columns: 1fr;
  }
}

.input-group {
  margin-bottom: 1.2rem;
  display: flex;
  flex-direction: column;
}
.input-group label {
  margin-bottom: 0.4rem;
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
}
.input-group input {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: all 0.3s ease;
}
.input-group input:focus, .input-group select:focus {
  border-color: var(--accent, #88D1C4);
  box-shadow: 0 0 10px rgba(136, 209, 196, 0.3);
}

.input-group input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(1);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}
.input-group input[type="date"]::-webkit-calendar-picker-indicator:hover {
  opacity: 1;
}

.input-group input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

/* Opciones de Dropdown con mejor accesibilidad */
#duracion option {
  background-color: #050B1F !important;
  color: #FFFFFF !important;
}

.mt-4 { margin-top: 1.5rem; }

/* Pie - Botones de Navegación */
.stepper-footer {
  position: relative;
  height: 80px;
  padding: 0 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(5, 11, 31, 0.9);
  backdrop-filter: blur(10px);
  margin-top: 30px;
}
.stepper-footer button {
  padding: 0.7rem 1.8rem;
  border-radius: 30px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s ease;
  outline: none;
  white-space: nowrap;
}
.btn-prev {
  background: transparent;
  color: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-prev:hover:not(:disabled) {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.btn-prev:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.btn-next {
  background: var(--accent, #88D1C4);
  color: #050B1F;
  border: none;
  box-shadow: 0 0 15px rgba(136, 209, 196, 0.4);
}
.btn-next:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(136, 209, 196, 0.6);
}

@media (max-width: 500px) {
  .stepper-footer {
    padding: 0 1rem;
  }
  .stepper-footer button {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }
}

/* ==================================
   UX / UI ENHANCEMENTS (AUDIT)
   ================================== */

@keyframes bounceBus {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-15px) scale(1.05); }
}

@keyframes pulse-whatsapp {
  0% { transform: scale(1); box-shadow: 0 0 15px rgba(37, 211, 102, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 25px rgba(37, 211, 102, 0.8); }
  100% { transform: scale(1); box-shadow: 0 0 15px rgba(37, 211, 102, 0.4); }
}

.btn-next.pulse-wa {
  animation: pulse-whatsapp 2s infinite;
}

.stepper-body {
  transition: filter 0.5s ease, opacity 0.5s ease;
}
.stepper-body.dimmed {
  filter: brightness(0.4) blur(2px);
  pointer-events: none;
}

/* Micro-interacciones de rebote */
.unit-card:active, .option-btn:active, .show-avatar-checkbox:active .show-avatar-circle {
  transform: scale(0.95) !important;
}

/* Check verde animado (Dopamina) */
@keyframes checkPop {
  0% { transform: scale(0) rotate(-45deg); opacity: 0; }
  70% { transform: scale(1.2) rotate(0deg); opacity: 1; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

.option-btn.selected { position: relative; }
.option-btn.selected::before {
  content: '✔';
  position: absolute;
  top: 10px;
  right: 10px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  animation: checkPop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  z-index: 20;
  box-shadow: 0 0 10px rgba(37, 211, 102, 0.5);
}

.show-avatar-checkbox input:checked + .show-avatar-circle::after {
  content: '✔';
  position: absolute;
  top: 5px;
  right: 5px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  animation: checkPop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  z-index: 20;
  box-shadow: 0 0 10px rgba(37, 211, 102, 0.5);
}