:root {
  --fondo-1: #1a1730;
  --fondo-2: #2d2350;
  --fondo-3: #3a2f5c;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-borde: rgba(255, 255, 255, 0.12);
  --texto: #f2eefb;
  --texto-suave: #c4b9e0;
  --acento: #c9a86a;
  --acento-claro: #e6d3a3;
  --burbuja-bot: rgba(255, 255, 255, 0.08);
  --burbuja-user: linear-gradient(135deg, #6d5bb5, #8a6fd4);
  --sombra: 0 10px 40px rgba(0, 0, 0, 0.35);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--texto);
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 20%, #3a2f5c 0%, transparent 45%),
    radial-gradient(circle at 80% 80%, #2d2350 0%, transparent 45%),
    linear-gradient(160deg, var(--fondo-1), var(--fondo-2));
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
}

.app {
  width: 100%;
  max-width: 620px;
  height: min(88vh, 820px);
  background: var(--panel);
  border: 1px solid var(--panel-borde);
  border-radius: 24px;
  box-shadow: var(--sombra);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--panel-borde);
  background: rgba(255, 255, 255, 0.03);
}

.lotus {
  font-size: 34px;
  filter: drop-shadow(0 0 12px rgba(201, 168, 106, 0.6));
  animation: latido 4s ease-in-out infinite;
}

@keyframes latido {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

.header h1 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600;
  font-size: 26px;
  letter-spacing: 0.5px;
}

.subtitulo {
  font-size: 13px;
  color: var(--texto-suave);
  margin-top: 2px;
}

.chat {
  flex: 1;
  overflow-y: auto;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  scroll-behavior: smooth;
}

.chat::-webkit-scrollbar { width: 8px; }
.chat::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.burbuja {
  max-width: 82%;
  padding: 13px 17px;
  border-radius: 18px;
  line-height: 1.55;
  font-size: 15px;
  white-space: pre-wrap;
  word-wrap: break-word;
  animation: aparecer 0.35s ease;
}

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

.burbuja.bot {
  align-self: flex-start;
  background: var(--burbuja-bot);
  border: 1px solid var(--panel-borde);
  border-bottom-left-radius: 6px;
}

.burbuja.user {
  align-self: flex-end;
  background: var(--burbuja-user);
  color: #fff;
  border-bottom-right-radius: 6px;
}

.burbuja strong { color: var(--acento-claro); }
.burbuja.user strong { color: #fff; }

.escribiendo {
  align-self: flex-start;
  display: flex;
  gap: 5px;
  padding: 14px 18px;
}
.escribiendo span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--texto-suave);
  animation: rebote 1.2s infinite ease-in-out;
}
.escribiendo span:nth-child(2) { animation-delay: 0.2s; }
.escribiendo span:nth-child(3) { animation-delay: 0.4s; }

@keyframes rebote {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

.sugerencias {
  display: flex;
  gap: 8px;
  padding: 0 18px 12px;
  flex-wrap: wrap;
}
.sugerencias button {
  background: var(--panel);
  border: 1px solid var(--panel-borde);
  color: var(--texto-suave);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}
.sugerencias button:hover {
  background: rgba(201, 168, 106, 0.2);
  color: var(--acento-claro);
  border-color: var(--acento);
}

.entrada {
  display: flex;
  gap: 10px;
  padding: 16px 18px 20px;
  border-top: 1px solid var(--panel-borde);
  background: rgba(255, 255, 255, 0.03);
}

.entrada input {
  flex: 1;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--panel-borde);
  border-radius: 14px;
  padding: 13px 16px;
  color: var(--texto);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.entrada input:focus { border-color: var(--acento); }
.entrada input::placeholder { color: var(--texto-suave); opacity: 0.7; }

.entrada button {
  background: linear-gradient(135deg, var(--acento), var(--acento-claro));
  color: #2d2350;
  border: none;
  width: 50px;
  border-radius: 14px;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, opacity 0.2s;
}
.entrada button:hover { transform: scale(1.05); }
.entrada button:active { transform: scale(0.96); }

@media (max-width: 640px) {
  body { padding: 0; }
  .app { height: 100vh; max-width: 100%; border-radius: 0; }
}