/* — VAMPELIUM LIQUID-GLASS THEME — */
:root {
  --pink: #ff3ebf;
  --purple: #b94cff;
  --glass-bg: rgba(255, 255, 255, 0.06);   /* super subtle milkiness */
  --glass-border: rgba(255, 255, 255, 0.20);
  --radius: 18px;
  --blur: 22px;
  --dur: 0.35s;
  --font: "Poppins", "Inter", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-family: var(--font);
  color: #fff;
  background: radial-gradient(ellipse at top left,#0d0d0d 0%, #000 60%) fixed;
  overflow: hidden;
}

/* — FLEX LAYOUT CONTAINER — */
#app {
  display: flex;
  height: 100%;
  gap: 24px;
  padding: 24px;
  animation: fadeIn var(--dur) ease-out both;
}

/* — SIDEBAR — */
#sidebar {
  width: 250px;
  min-width: 220px;
  backdrop-filter: blur(var(--blur)) saturate(180%);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  /* ✨ NO glow (box-shadow removed) */
}

/* neat hover links (no glow) */
#sidebar a {
  color: var(--purple);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.5px;
  position: relative;
}
#sidebar a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--pink), var(--purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
#sidebar a:hover::after { transform: scaleX(1); }

/* — CHAT PANEL — */
#chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(var(--blur)) saturate(180%);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
}

/* header (pure white on clear glass) */
.chat-title {
  text-align: center;
  padding: 20px 0 12px;
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
}

/* scrollable message list */
.messages {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* glass bubbles — no glow */
.msg {
  max-width: 80%;
  padding: 14px 20px;
  border-radius: calc(var(--radius) * 0.75);
  backdrop-filter: blur(calc(var(--blur) * 0.65)) saturate(180%);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 0.95rem;
  line-height: 1.5;
  animation: bubblePop var(--dur) ease-out both;
}
.msg.user { align-self: flex-end; }
.msg.bot  { align-self: flex-start; }

/* — INPUT BAR — */
.chat-input {
  display: flex;
  gap: 12px;
  padding: 20px 24px 28px;
  backdrop-filter: blur(calc(var(--blur) * 0.6)) saturate(180%);
  background: var(--glass-bg);
}

.chat-input input[type="text"] {
  flex: 1;
  border: none;
  outline: none;
  background: rgba(255, 255, 255, 0.10);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 1rem;
  color: #fff;
  backdrop-filter: blur(8px);
}

.chat-input button {
  padding: 14px 22px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.6px;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  transition: transform .25s;
}
.chat-input button:hover { transform: translateY(-2px); }

/* — ANIMATIONS — */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; }
}
@keyframes bubblePop {
  0%   { transform: scale(0.85); opacity: .0; }
  50%  { transform: scale(1.02); }
  100% { transform: scale(1);   opacity: 1; }
}

/* — MOBILE MAGIC (unchanged) — */
#navToggle { display: none; }
label[for="navToggle"]{
  position: fixed; top: 20px; left: 20px;
  z-index: 10;
  width: 46px; height: 46px;
  border-radius: 50%;
  backdrop-filter: blur(var(--blur));
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  cursor: pointer;
}
label[for="navToggle"]::before,
label[for="navToggle"]::after{
  content: "";
  position: absolute; left: 10px;
  width: 26px; height: 4px;
  background: #fff;
  border-radius: 3px;
  transition: transform var(--dur);
}
label[for="navToggle"]::before { top: 15px; }
label[for="navToggle"]::after  { top: 25px; }

@media (max-width: 900px){
  #app     { padding: 20px 12px; }
  #sidebar {
    position: fixed;
    left:0; top:0; bottom:0;
    transform: translateX(-105%);
    width:260px; opacity:0;
  }
  #navToggle:checked ~ #sidebar{
    transform: translateX(0); opacity:1;
  }
  #navToggle:checked + label[for="navToggle"]::before{
    transform: translateY(10px) rotate(45deg);
  }
  #navToggle:checked + label[for="navToggle"]::after{
    transform: translateY(-10px) rotate(-45deg);
  }
  #chat{ flex:1; width:100%; }
}

@media (max-width: 600px){
  #app{ flex-direction:column; gap:16px; }
  #sidebar{ width:100%; height:auto; max-height:60vh; }
  .messages{ padding:18px 20px; }
  .msg{ max-width:100%; }
}