:root {
  --bg: #0f141b;
  --panel: #151b24;
  --panel-2: #1d2633;
  --text: #f3f6fb;
  --muted: #aeb9c8;
  --border: #2c3646;
  --primary: #2f81f7;
  --primary-hover: #1f6feb;
  --danger: #e5534b;
  --success: #3fb950;
  --warning-bg: #2a210c;
  --warning-border: #8a6d1d;
  --warning-text: #ffd98a;
  --assistant: #232d3d;
  --code-bg: #0b1017;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #182132 0%, var(--bg) 42%);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

.app-shell {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 18px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  margin-bottom: 16px;
}

h1 {
  margin: 0;
  font-size: 38px;
  letter-spacing: 0.04em;
}

.topbar p {
  margin: 4px 0 0;
  color: var(--muted);
}

.status-panel {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.status-dot {
  width: 12px;
  height: 12px;
  display: inline-block;
  border-radius: 999px;
  background: #777;
}

.status-dot.online {
  background: var(--success);
}

.status-dot.offline {
  background: var(--danger);
}

.status-dot.unknown {
  background: #888;
}

.privacy-warning {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-text);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 16px;
  font-weight: 700;
}

.controls,
.composer {
  background: rgba(21, 27, 36, 0.94);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-weight: 700;
}

.invite-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
}

input,
textarea,
button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--border);
}

input,
textarea {
  width: 100%;
  background: #0b1017;
  color: var(--text);
  padding: 12px;
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 110px;
}

button {
  cursor: pointer;
  background: var(--panel-2);
  color: var(--text);
  padding: 11px 14px;
  border-color: var(--border);
}

button:hover {
  background: #283448;
}

button.primary {
  background: var(--primary);
  border-color: var(--primary);
  font-weight: 700;
}

button.primary:hover {
  background: var(--primary-hover);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  margin: 8px 0 0;
}

code {
  background: var(--code-bg);
  padding: 2px 5px;
  border-radius: 5px;
  color: #c9d1d9;
}

.chat {
  min-height: 46vh;
  max-height: 62vh;
  overflow-y: auto;
  background: rgba(15, 20, 27, 0.82);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 16px;
}

.message-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  margin: 0 0 14px;
  overflow: hidden;
}

.message-card.user {
  margin-left: 12%;
  border-color: rgba(47, 129, 247, 0.55);
}

.message-card.assistant {
  margin-right: 12%;
  border-color: rgba(174, 185, 200, 0.28);
}

.message-meta {
  background: var(--panel-2);
  color: var(--muted);
  font-size: 13px;
  padding: 8px 10px;
}

.message-card.user .message-meta {
  background: #1f6feb;
  color: white;
}

.message-text {
  margin: 0;
  padding: 12px;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.45;
  background: var(--assistant);
  color: var(--text);
}

.message-card.user .message-text {
  background: rgba(31, 111, 235, 0.17);
}

.message-details {
  padding: 8px 10px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
  display: none;
  white-space: pre-wrap;
}

.message-details.visible {
  display: block;
}

.turnstile-block {
  margin-top: 12px;
  padding: 10px;
  background: rgba(11, 16, 23, 0.7);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.composer-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

@media (max-width: 700px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .invite-row {
    grid-template-columns: 1fr;
  }

  .message-card.user,
  .message-card.assistant {
    margin-left: 0;
    margin-right: 0;
  }
}