/* ─── Reset y base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --luna-morado:    #5B3FD4;
  --luna-morado-lt: #7C62E3;
  --luna-morado-bg: #EDE9FF;
  --luna-naranja:   #F97316;
  --luna-verde:     #16A34A;
  --luna-amarillo:  #FCD34D;
  --bg:             #F5F3FF;
  --blanco:         #FFFFFF;
  --texto:          #1E1B2E;
  --texto-suave:    #6B6880;
  --borde:          #DDD8F5;
  --radio:          16px;
  --radio-burbuja:  20px;
  --sombra:         0 2px 12px rgba(91,63,212,0.10);
}

html, body {
  height: 100%;
  font-family: 'Nunito', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--texto);
  overflow: hidden;
}

/* ─── Layout principal: ocupa toda la pantalla ──────────────── */
#app {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
  max-width: 900px;
  margin: 0 auto;
  background: var(--blanco);
  box-shadow: var(--sombra);
}

/* ─── Header ────────────────────────────────────────────────── */
#header {
  background: var(--luna-morado);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}

#luna-avatar {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.35);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
  animation: flotando 3s ease-in-out infinite;
}

@keyframes flotando {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}

#header-info h1 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
#header-info p {
  color: rgba(255,255,255,0.75);
  font-size: 13px;
  margin-top: 1px;
}

#cap-badge {
  margin-left: auto;
  background: rgba(255,255,255,0.18);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  text-align: center;
  line-height: 1.4;
  flex-shrink: 0;
}

/* ─── Área de chat ───────────────────────────────────────────── */
#chat {
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
}

/* Mensajes */
.msg {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  animation: aparecer 0.25s ease;
}
.msg.luna  { flex-direction: row; }
.msg.nino  { flex-direction: row-reverse; }

@keyframes aparecer {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.av {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.av.luna-av { background: var(--luna-morado); }
.av.nino-av { background: var(--luna-morado-bg); font-size: 14px; font-weight: 700; color: var(--luna-morado); }

.burbuja {
  max-width: 72%;
  padding: 12px 16px;
  font-size: 15px;
  line-height: 1.65;
  border-radius: var(--radio-burbuja);
}
.luna .burbuja {
  background: #F3F0FF;
  border: 0.5px solid var(--borde);
  border-bottom-left-radius: 4px;
  color: var(--texto);
}
.nino .burbuja {
  background: var(--luna-morado);
  color: #fff;
  border-bottom-right-radius: 4px;
}

/* Tarjeta de imagen */
.img-card {
  border-radius: var(--radio);
  overflow: hidden;
  border: 0.5px solid var(--borde);
  background: #FAFAFA;
  max-width: 72%;
}
.img-card img {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  display: block;
}
.img-card .img-label {
  padding: 8px 14px;
  font-size: 12px;
  color: var(--texto-suave);
}

/* Guía de partes */
.guia-partes {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.parte {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}
.parte.primero { background: #EDE9FF; color: #5B3FD4; }
.parte.luego   { background: #FFF3E0; color: #C2410C; }
.parte.final   { background: #DCFCE7; color: #15803D; }
.parte.done    { opacity: 0.4; text-decoration: line-through; }

/* Typing */
#typing {
  display: none;
  align-items: center;
  gap: 10px;
}
.dots-wrap {
  background: #F3F0FF;
  border: 0.5px solid var(--borde);
  padding: 12px 16px;
  border-radius: 20px 20px 20px 4px;
  display: flex; gap: 5px;
}
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--luna-morado);
  opacity: 0.4;
  animation: rebote 1.2s infinite;
}
.dot:nth-child(2) { animation-delay: 0.2s; }
.dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes rebote {
  0%,80%,100% { transform: translateY(0); opacity: 0.4; }
  40%         { transform: translateY(-6px); opacity: 1; }
}

/* ─── Panel inferior ─────────────────────────────────────────── */
#bottom {
  border-top: 0.5px solid var(--borde);
  background: var(--blanco);
  padding: 14px 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#input-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

#user-input {
  flex: 1;
  border: 1.5px solid var(--borde);
  border-radius: 24px;
  padding: 12px 20px;
  font-size: 15px;
  font-family: inherit;
  background: var(--bg);
  color: var(--texto);
  outline: none;
  transition: border-color 0.15s;
}
#user-input:focus { border-color: var(--luna-morado); }
#user-input::placeholder { color: var(--texto-suave); }

#btn-enviar {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--luna-morado);
  border: none;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.1s, background 0.15s;
}
#btn-enviar:hover   { background: var(--luna-morado-lt); }
#btn-enviar:active  { transform: scale(0.94); }
#btn-enviar svg { width: 20px; height: 20px; fill: white; }

#btn-voz {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--borde);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  font-size: 20px;
  transition: border-color 0.15s, background 0.15s;
}
#btn-voz:hover    { border-color: var(--luna-morado); background: var(--luna-morado-bg); }
#btn-voz.grabando { border-color: #EF4444; background: #FEE2E2; animation: pulso 1s infinite; }
@keyframes pulso {
  0%,100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.3); }
  50%     { box-shadow: 0 0 0 8px rgba(239,68,68,0); }
}