.ai-assistant-launcher {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 320px);
  align-items: center;
  gap: 28px;
  margin: 0 0 28px;
  padding: 24px 26px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: linear-gradient(135deg, var(--surface) 0%, var(--primary-soft) 100%);
  box-shadow: var(--shadow-sm);
}

.ai-assistant-launcher--manager {
  margin-bottom: 26px;
  border-color: rgba(0, 113, 227, .18);
  background: linear-gradient(135deg, #fff 0%, #f4f8ff 100%);
  box-shadow: var(--admin-shadow, var(--shadow-sm));
}

.ai-assistant-launcher-main {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 18px;
}

.ai-assistant-mark {
  display: inline-flex;
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(24, 87, 228, .18);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -.02em;
}

.ai-assistant-launcher--manager .ai-assistant-mark {
  background: var(--admin-blue, var(--primary));
  box-shadow: 0 8px 20px rgba(0, 113, 227, .18);
}

.ai-assistant-launcher-copy {
  min-width: 0;
}

.ai-assistant-kicker {
  margin: 0 0 5px;
  color: var(--primary);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.ai-assistant-launcher-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: 22px;
  font-weight: 740;
  letter-spacing: -.025em;
  line-height: 1.25;
}

.ai-assistant-launcher-copy > p:not(.ai-assistant-kicker) {
  max-width: 680px;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.ai-assistant-capabilities {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.ai-assistant-capabilities li {
  max-width: 100%;
  padding: 6px 10px;
  border: 1px solid rgba(24, 87, 228, .14);
  border-radius: 999px;
  background: rgba(255, 255, 255, .78);
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.ai-assistant-launcher-actions {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  padding-left: 26px;
  border-left: 1px solid rgba(24, 87, 228, .14);
}

.ai-assistant-scope {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 680;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.ai-assistant-button {
  width: 100%;
  min-width: 0;
  white-space: normal;
  text-align: center;
}

.ai-assistant-button.is-disabled {
  cursor: not-allowed;
  opacity: .58;
  transform: none;
  box-shadow: none;
}

.ai-assistant-launcher-actions small {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
  text-align: center;
  overflow-wrap: anywhere;
}

.ai-assistant-lock {
  display: grid;
  gap: 3px;
  padding: 10px 12px;
  border: 1px solid rgba(185, 102, 18, .24);
  border-radius: 10px;
  background: #fff8ed;
  color: #7c4b18;
}

.ai-assistant-lock strong {
  font-size: 12px;
}

.ai-assistant-lock span {
  font-size: 10px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.ai-assistant-launcher.is-disabled {
  border-color: rgba(185, 102, 18, .25);
  background: linear-gradient(135deg, #fff 0%, #fff9ef 100%);
}

@media (max-width: 760px) {
  .ai-assistant-launcher {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    padding: 20px;
  }

  .ai-assistant-launcher-actions {
    padding-top: 18px;
    padding-left: 0;
    border-top: 1px solid rgba(24, 87, 228, .14);
    border-left: 0;
  }
}

@media (max-width: 460px) {
  .ai-assistant-launcher-main {
    display: grid;
    gap: 13px;
  }

  .ai-assistant-mark {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
    border-radius: 12px;
  }

  .ai-assistant-capabilities {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .ai-assistant-capabilities li {
    width: 100%;
    border-radius: 10px;
  }
}

/* Shared role-adaptive workspace. It deliberately reuses the platform's
   existing surfaces, type scale and color tokens. */
.ai-workspace-heading { align-items: flex-start; }
.ai-identity-strip {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 20px;
  margin-bottom: 18px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.ai-identity-main { display: flex; min-width: 190px; align-items: center; gap: 11px; }
.ai-identity-main img { width: 30px; height: 30px; }
.ai-identity-main div { display: grid; gap: 2px; }
.ai-identity-main span, .ai-scope-facts span { color: var(--muted); font-size: 11px; }
.ai-identity-main strong { overflow-wrap: anywhere; font-size: 14px; }
.ai-scope-facts { display: flex; min-width: 0; flex: 1; flex-wrap: wrap; gap: 8px 18px; }
.ai-identity-strip > .status-chip { flex: 0 0 auto; }
.ai-exam-lock {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid #efb2b5;
  border-radius: 14px;
  background: #fff4f4;
  color: #7f252d;
}
.ai-exam-lock img { width: 28px; height: 28px; flex: 0 0 28px; }
.ai-exam-lock h2 { margin: 0; font-size: 17px; }
.ai-exam-lock p { margin: 5px 0 0; color: #8c4a50; font-size: 12px; line-height: 1.65; }
.ai-workspace-grid {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(220px, 285px) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}
.ai-history-panel, .ai-chat-panel, .ai-manager-tool,
.ai-usage-summary, .ai-usage-filter, .ai-usage-list {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.ai-history-panel { padding: 16px; }
.ai-panel-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; padding: 2px 2px 12px; }
.ai-panel-heading h2 { margin: 2px 0 0; font-size: 18px; }
.ai-panel-heading a { color: var(--primary); font-size: 12px; font-weight: 680; }
.ai-history-panel nav { display: grid; gap: 7px; }
.ai-history-panel nav a {
  display: grid;
  min-width: 0;
  gap: 4px;
  padding: 11px 12px;
  border: 1px solid transparent;
  border-radius: 11px;
  color: var(--ink-soft);
  text-decoration: none;
}
.ai-history-panel nav a:hover, .ai-history-panel nav a.active { border-color: rgba(24, 87, 228, .2); background: var(--primary-soft); color: var(--ink); }
.ai-history-panel nav strong { overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.ai-history-panel nav small, .ai-empty-note { color: var(--muted); font-size: 10px; line-height: 1.45; }
.ai-chat-panel { display: flex; min-height: 560px; flex-direction: column; overflow: hidden; }
.ai-chat-stream { display: flex; min-width: 0; flex: 1; flex-direction: column; gap: 13px; padding: 20px; }
.ai-chat-empty { display: grid; max-width: 520px; margin: auto; justify-items: center; gap: 8px; padding: 40px 20px; text-align: center; }
.ai-chat-empty img { width: 42px; height: 42px; opacity: .75; }
.ai-chat-empty h2 { margin: 2px 0 0; font-size: 20px; }
.ai-chat-empty p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.ai-message { max-width: min(82%, 760px); padding: 13px 15px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.ai-message-user { align-self: flex-end; border-color: rgba(24, 87, 228, .18); background: var(--primary-soft); }
.ai-message-assistant, .ai-message-tool, .ai-message-system { align-self: flex-start; }
.ai-message-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-bottom: 7px; }
.ai-message-meta strong { font-size: 11px; }
.ai-message-meta span { color: var(--muted); font-size: 9px; }
.ai-message-content { color: var(--ink-soft); font-size: 13px; line-height: 1.75; overflow-wrap: anywhere; }
.ai-message-model { margin-top: 8px; padding-top: 7px; border-top: 1px solid var(--line); color: var(--muted); font-size: 9px; }
.ai-question-form { display: grid; gap: 9px; padding: 16px 18px; border-top: 1px solid var(--line); background: #fbfcff; }
.ai-question-form label, .ai-manager-tool label { color: var(--ink-soft); font-size: 12px; font-weight: 700; }
.ai-question-form textarea, .ai-manager-tool select, .ai-usage-filter input, .ai-usage-filter select {
  width: 100%; min-width: 0; padding: 10px 12px; border: 1px solid var(--line-strong);
  border-radius: 11px; background: #fff; color: var(--ink); font: inherit; outline: none;
}
.ai-question-form textarea { min-height: 94px; resize: vertical; }
.ai-question-form textarea:focus, .ai-manager-tool select:focus, .ai-usage-filter input:focus, .ai-usage-filter select:focus { border-color: #7bb4ec; box-shadow: 0 0 0 3px rgba(0, 113, 227, .1); }
.ai-question-form > div { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.ai-question-form small { color: var(--muted); font-size: 10px; line-height: 1.5; }
.ai-manager-tool { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr); gap: 24px; margin-top: 18px; padding: 20px; }
.ai-manager-tool h2 { margin: 3px 0 0; font-size: 19px; }
.ai-manager-tool p { margin: 6px 0 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.ai-manager-tool form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 9px 10px; align-items: end; }
.ai-manager-tool form label { grid-column: 1 / -1; }
.ai-manager-tool select { min-height: 44px; }
.ai-usage-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-bottom: 14px; overflow: hidden; }
.ai-usage-summary > div { display: grid; gap: 3px; padding: 17px 20px; border-right: 1px solid var(--line); }
.ai-usage-summary > div:last-child { border-right: 0; }
.ai-usage-summary span, .ai-usage-summary small { color: var(--muted); font-size: 10px; }
.ai-usage-summary strong { font-size: 21px; }
.ai-usage-filter { display: grid; grid-template-columns: 1fr 1.4fr 1fr 1fr auto auto; gap: 10px; align-items: end; margin-bottom: 14px; padding: 15px; }
.ai-usage-filter label { display: grid; gap: 6px; color: var(--ink-soft); font-size: 10px; font-weight: 680; }
.ai-usage-filter input, .ai-usage-filter select { min-height: 42px; }
.ai-usage-list { overflow: hidden; }
.ai-usage-list article { display: grid; gap: 10px; padding: 17px 20px; border-bottom: 1px solid var(--line); }
.ai-usage-list article:last-child { border-bottom: 0; }
.ai-usage-meta, .ai-usage-facts { display: flex; min-width: 0; flex-wrap: wrap; align-items: center; gap: 8px 14px; }
.ai-usage-meta > span:not(.status-chip), .ai-usage-facts span { color: var(--muted); font-size: 10px; overflow-wrap: anywhere; }
.ai-usage-list p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.65; overflow-wrap: anywhere; }
.ai-usage-facts { padding-top: 8px; border-top: 1px solid var(--line); }
@media (max-width: 920px) {
  .ai-workspace-grid, .ai-manager-tool { grid-template-columns: minmax(0, 1fr); }
  .ai-history-panel nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-usage-filter { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ai-usage-filter .button { width: 100%; }
}
@media (max-width: 640px) {
  .ai-identity-strip { align-items: flex-start; flex-direction: column; gap: 12px; }
  .ai-scope-facts { display: grid; gap: 5px; }
  .ai-history-panel nav { grid-template-columns: minmax(0, 1fr); }
  .ai-chat-panel { min-height: 500px; }
  .ai-chat-stream { padding: 14px; }
  .ai-message { max-width: 94%; }
  .ai-question-form > div { align-items: stretch; flex-direction: column; }
  .ai-question-form .button { width: 100%; }
  .ai-manager-tool form { grid-template-columns: minmax(0, 1fr); }
  .ai-manager-tool form label { grid-column: auto; }
  .ai-usage-summary, .ai-usage-filter { grid-template-columns: minmax(0, 1fr); }
  .ai-usage-summary > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .ai-usage-summary > div:last-child { border-bottom: 0; }
}