/* ==========================================================================
   Gente de Bien - Estilos Personalizados y Micro-interacciones
   Proyecto de Arte Contemporáneo / MAMB / CoLabora Bucaramanga
   ========================================================================== */

:root {
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent-emerald: #059669;
  --color-accent-emerald-light: #ecfdf5;
  --color-border: #e2e8f0;
  --color-bg-subtle: #f8fafc;
}

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  -webkit-tap-highlight-color: transparent;
  background-color: var(--color-bg-subtle);
  touch-action: manipulation;
  padding-bottom: env(safe-area-inset-bottom, 16px);
}

/* Transición suave entre pantallas / pasos */
.step-card {
  display: none;
  flex-direction: column;
  opacity: 0;
  transform: translateY(12px) scale(0.99);
  transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1), transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.step-card.active {
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Hero inicial con imagen de fondo */
.hero-bg {
  background-image: linear-gradient(to bottom, rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.95)), url('../img/fondo-camisas.webp');
  background-size: cover;
  background-position: center;
}

/* Botones de opción con feedback táctil inmediato */
.opt-btn {
  position: relative;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}

.opt-btn:hover {
  border-color: #cbd5e1;
}

.opt-btn:active {
  transform: scale(0.985);
}

/* Estado seleccionado momentáneo antes de avanzar de paso */
.opt-btn.is-selected {
  border-color: var(--color-primary) !important;
  background-color: #f1f5f9 !important;
  color: var(--color-primary) !important;
  box-shadow: 0 0 0 1.5px var(--color-primary), 0 2px 8px rgba(15, 23, 42, 0.08);
}

/* Tarjetas de selección múltiple (Paso 4 - Señales de confianza) */
.multi-btn {
  position: relative;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}

.multi-btn:hover {
  border-color: #cbd5e1;
}

.multi-btn:active {
  transform: scale(0.99);
}

.multi-btn.is-checked {
  border-color: var(--color-primary) !important;
  background-color: #ffffff !important;
  box-shadow: 0 0 0 1.5px var(--color-primary), 0 2px 6px rgba(15, 23, 42, 0.06);
}

/* Checkbox personalizado */
.multi-btn input[type="checkbox"] {
  accent-color: var(--color-primary);
  transition: transform 0.15s ease;
}

.multi-btn input[type="checkbox"]:checked {
  transform: scale(1.08);
}

/* Slider de Confianza Reactivo (Paso 6) */
input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 10px;
  border-radius: 9999px;
  background: #e2e8f0;
  outline: none;
  transition: background 0.15s ease;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 30px;
  width: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  border: 3px solid #ffffff;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

input[type=range]::-webkit-slider-thumb:active {
  transform: scale(1.18);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.35);
}

input[type=range]::-moz-range-thumb {
  height: 30px;
  width: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  border: 3px solid #ffffff;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

input[type=range]::-moz-range-thumb:active {
  transform: scale(1.18);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.35);
}

/* Sombra y animación de la barra de progreso */
#progress-bar {
  box-shadow: 0 0 8px rgba(15, 23, 42, 0.2);
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Micro-animación de pulso para el porcentaje del slider */
.slider-val-animate {
  animation: subtle-pulse 0.2s ease-out;
}

@keyframes subtle-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); }
  100% { transform: scale(1); }
}