:root {
  --bg: #08111f;
  --bg-2: #0e1b30;
  --panel: rgba(10, 18, 32, 0.82);
  --line: rgba(120, 168, 255, 0.18);
  --line-strong: rgba(127, 179, 255, 0.45);
  --text: #e6eefc;
  --muted: #93a7c9;
  --accent: #6ad6ff;
  --accent-2: #7d9bff;
  --success: #8effbf;
  --danger: #ff9cae;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(106, 214, 255, 0.16), transparent 30%),
    radial-gradient(circle at top right, rgba(125, 155, 255, 0.18), transparent 26%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(255,255,255,0.32), transparent 85%);
  pointer-events: none;
}

.noise {
  position: fixed;
  inset: 0;
  opacity: 0.06;
  pointer-events: none;
  background-image: radial-gradient(circle, rgba(255,255,255,0.85) 0.5px, transparent 0.75px);
  background-size: 12px 12px;
}

main { padding: 0 28px 28px; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px;
}
.topbar h1, h2, h3 { margin: 0; }
.eyebrow, .panel-kicker, .message-route, .endpoint-chip, code, .user-chip strong {
  font-family: "JetBrains Mono", monospace;
}
.eyebrow, .panel-kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--accent);
}
.topbar-right { display: flex; align-items: center; gap: 12px; }
.user-chip, .endpoint-chip {
  border: 1px solid var(--line-strong);
  background: rgba(255,255,255,0.04);
  border-radius: 999px;
  padding: 10px 14px;
  color: var(--muted);
}
.user-chip strong { color: var(--accent); margin-left: 8px; font-size: 11px; text-transform: uppercase; }
.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.dashboard-grid {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
}
.side-panel, .main-panel, .conversation-header, .messages-panel, .compose-panel, .login-card {
  padding: 24px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.stat-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
}
.stat-card span, .muted, .conversation-card p, .flash { color: var(--muted); }
.stat-card strong { display: block; margin-top: 10px; font-size: 28px; color: var(--text); }
.stack-form { display: grid; gap: 14px; margin-top: 14px; }
.stack-form label { display: grid; gap: 8px; }
.stack-form span { font-size: 13px; color: var(--muted); }
input, textarea, select, button {
  font: inherit;
  border-radius: 16px;
  border: 1px solid var(--line);
}
input, textarea, select {
  width: 100%;
  padding: 14px 15px;
  color: var(--text);
  background: rgba(4, 10, 18, 0.75);
}
select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--accent) 50%), linear-gradient(135deg, var(--accent) 50%, transparent 50%);
  background-position: calc(100% - 22px) calc(50% - 3px), calc(100% - 16px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
textarea { resize: vertical; }
button, .ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text);
  background: linear-gradient(135deg, rgba(106,214,255,0.18), rgba(125,155,255,0.3));
  border: 1px solid var(--line-strong);
  cursor: pointer;
}
.ghost-button { background: rgba(255,255,255,0.04); }
.danger-button {
  background: linear-gradient(135deg, rgba(255,156,174,0.16), rgba(255,110,140,0.22));
  border-color: rgba(255,156,174,0.36);
}
.mt { margin-top: 28px; }
.checkbox-row { display: flex !important; align-items: center; gap: 10px; }
.checkbox-row input { width: auto; }
.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.conversation-list {
  display: grid;
  gap: 14px;
}
.conversation-card {
  display: grid;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  padding: 18px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}
.conversation-card:hover { transform: translateY(-2px); border-color: var(--line-strong); background: rgba(255,255,255,0.05); }
.conversation-top, .conversation-meta, .number-row, .message-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.number-row code { color: var(--accent); }
.conversation-meta strong { text-transform: uppercase; font-size: 12px; letter-spacing: 0.12em; color: var(--accent); }
.empty-state {
  padding: 28px;
  text-align: center;
  border: 1px dashed var(--line-strong);
  border-radius: 24px;
  background: rgba(255,255,255,0.02);
}
.empty-state.narrow { margin: 20px; }
.login-shell {
  min-height: calc(100vh - 150px);
  display: grid;
  place-items: center;
}
.login-card {
  width: min(460px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.flash-stack { padding: 0 28px; display: grid; gap: 10px; }
.flash {
  border-radius: 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
}
.flash.success { border-color: rgba(142,255,191,0.3); color: #c3ffd9; }
.flash.error { border-color: rgba(255,156,174,0.3); color: #ffd2da; }
.conversation-shell { display: grid; gap: 24px; }
.conversation-header { display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.conversation-header p { margin: 8px 0 0; color: var(--muted); }
.message-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 24px;
}
.message-stream { display: grid; gap: 14px; }
.message-bubble {
  max-width: 80%;
  padding: 16px 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
}
.message-bubble p { margin: 10px 0 12px; white-space: pre-wrap; }
.message-bubble.inbound { justify-self: start; }
.message-bubble.outbound {
  justify-self: end;
  background: linear-gradient(135deg, rgba(106,214,255,0.14), rgba(125,155,255,0.18));
  border-color: rgba(125,155,255,0.35);
}
.message-route { color: var(--muted); font-size: 12px; }
.message-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
}
.message-actions form { margin: 0; }

@media (max-width: 980px) {
  .dashboard-grid, .message-layout { grid-template-columns: 1fr; }
  .topbar, .panel-header, .conversation-header { flex-direction: column; align-items: stretch; }
  .message-bubble { max-width: 100%; }
}