/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* PANTALLA COMPLETA (Compatible iPhone) */
html, body {
  height: 100%;
}

body {
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #000, #1a1a1a);
  background-attachment: fixed;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  color: white;
}

/* CONTENEDOR */
.container {
  width: 100%;
  max-width: 500px;
  background: #111;
  padding: 40px 30px;
  border-radius: 20px;
  box-shadow: 0 30px 70px rgba(0,0,0,0.7);
  overflow: hidden;
}

/* LOGO GRANDE CENTRADO */
.logo {
  display: block;
  margin: 0 auto 45px auto;
  width: 320px;
  max-width: 90%;
  height: auto;
  filter: drop-shadow(0 10px 30px rgba(0,0,0,0.6));
  animation: fadeInLogo 0.6s ease;
}

@keyframes fadeInLogo {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* BARRA DE PROGRESO */
.progress-container {
  width: 100%;
  height: 6px;
  background: #222;
  border-radius: 10px;
  margin-bottom: 30px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: #FC731E;
  transition: width 0.4s ease;
}

/* SECCIONES */
.step {
  display: none;
  animation: swipe 0.4s ease forwards;
}

.step.active {
  display: block;
}

@keyframes swipe {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

h2 {
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.4;
}

p {
  text-align: center;
  margin-bottom: 20px;
  color: #bbb;
}

/* BOTONES PRINCIPALES */
.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 14px;
  background: #FC731E;
  color: white;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
  margin-top: 25px;
}

.btn:hover {
  background: #e56210;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(252,115,30,0.4);
}

/* EMOJIS - CUADRO BLANCO */
.emoji-scale {
  display: flex;
  gap: 8px;
}

.emoji-scale button {
  flex: 1;
  padding: 14px 6px;
  background: #ffffff;
  border: 2px solid #eee;
  border-radius: 16px;
  font-size: 1.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #333;
}

/* Hover */
.emoji-scale button:hover {
  transform: translateY(-4px);
  border-color: #FC731E;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.emoji-scale span {
  font-size: 0.75rem;
  margin-top: 6px;
  font-weight: 500;
}

/* OPCIONES TIPO LISTA */
.options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.options button {
  padding: 14px;
  background: #ffffff;
  border: 2px solid #eee;
  border-radius: 14px;
  cursor: pointer;
  transition: 0.3s;
  color: #333;
  font-weight: 500;
}

.options button:hover {
  border-color: #FC731E;
  transform: translateY(-2px);
}

/* ESTADO SELECCIONADO */
button.selected {
  background: #FC731E;
  border-color: #FC731E;
  color: #ffffff;
  box-shadow: 0 8px 25px rgba(252,115,30,0.4);
  transform: translateY(-4px);
}

/* RESPONSIVE */
@media (max-width: 480px) {
  .logo {
    width: 260px;
  }

  h2 {
    font-size: 1rem;
  }

  .emoji-scale button {
    font-size: 1.6rem;
  }
}