:root {
  --bg: #0b0f16;
  --panel: #0f1520;
  --surface: #0c111b;
  --text: #e6eaf2;
  --muted: #93a0b4;
  --stroke: #1e293b;
  --primary: #46a0ff;
  --secondary: #7a7dff;
  --me-grad-start: #2556ff;
  --me-grad-end: #9a6bff;
  --srv: #141c2a;
  --radius: 14px;
  --radius-lg: 18px;
  --shadow: 0 14px 40px rgba(0, 0, 0, .55);
  --tr: .18s cubic-bezier(.2, .6, .2, 1);
}

* {
  box-sizing: border-box
}

html,
body {
  height: 100%
}

body {
  margin: 0;
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Noto Sans", Arial;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, #1e1240 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 110%, #11263f 0%, transparent 60%),
    var(--bg);
}

.wrap {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(780px, 96vw);
  background: linear-gradient(180deg, var(--panel), var(--surface));
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.bar {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  padding: 14px;
  background: rgba(255, 255, 255, .02);
  border-bottom: 1px solid var(--stroke);
}

.bar__input {
  height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--stroke);
  background: #0b1220;
  color: var(--text);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--tr), box-shadow var(--tr);
}

.bar__input::placeholder {
  color: #66768f
}

.bar__input:focus {
  border-color: #385a8e;
  box-shadow: 0 0 0 3px rgba(70, 160, 255, .15);
}

.btn {
  height: 42px;
  padding: 0 16px;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: #0b1220;
  color: var(--text);
  cursor: pointer;
  transition: transform var(--tr), box-shadow var(--tr), background var(--tr), border-color var(--tr);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px)
}

.btn:disabled {
  opacity: .6;
  cursor: not-allowed;
  transform: none
}

.btn--primary {
  background: linear-gradient(180deg, #1b3b60, #0f2744);
  border-color: #1b3b60;
}

.btn--primary:hover {
  box-shadow: 0 6px 18px rgba(70, 160, 255, .35);
  border-color: #2a78c7;
}

.btn--secondary {
  background: linear-gradient(180deg, #2b2e76, #1a1d55);
  border-color: #2b2e76;
}

.btn--secondary:hover {
  box-shadow: 0 6px 18px rgba(122, 125, 255, .35);
  border-color: #4c50ff;
}

.chat {
  padding: 16px;
  height: min(60vh, 520px);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: linear-gradient(180deg, #0f1520, #0b111a 40%, #0b0f16);
}

.msg {
  max-width: 70%;
  width: fit-content;
  padding: 10px 14px;
  border-radius: 16px;
  border: 1px solid var(--stroke);
  word-wrap: break-word;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .25);
}

.msg--srv {
  background: var(--srv);
  border-top-left-radius: 6px;
}

.msg--me {
  margin-left: auto;
  background: linear-gradient(135deg, var(--me-grad-start), var(--me-grad-end));
  border: 1px solid rgba(255, 255, 255, .08);
  border-top-right-radius: 6px;
}

a.link {
  color: #a8d6ff;
  text-decoration: none;
}

a.link:hover {
  text-decoration: underline
}

.status {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--muted);
  background: rgba(255, 255, 255, .02);
  border-top: 1px solid var(--stroke);
}

.chat::-webkit-scrollbar {
  width: 10px
}

.chat::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #23324a, #1b2536);
  border-radius: 10px;
  border: 2px solid #0b111a;
}

.chat::-webkit-scrollbar-track {
  background: transparent
}