:root {
  --course-ink: #18372a;
  --course-muted: #657369;
  --course-line: #dbe5dd;
  --course-green: #286341;
  --course-blue: #2f668d;
  --course-orange: #a95d2c;
  --course-bg: #f5f7f4;
}

.course-global-bar {
  position: sticky;
  top: 0;
  z-index: 70;
  min-height: 64px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto auto;
  align-items: center;
  gap: 16px;
  padding: 9px max(20px, calc((100vw - 1180px) / 2));
  color: var(--course-ink);
  background: rgba(250, 251, 249, .96);
  border-bottom: 1px solid var(--course-line);
  backdrop-filter: blur(12px);
}

.course-global-bar a { color: inherit; }
.course-global-brand {
  font-size: 20px;
  font-weight: 760;
  text-decoration: none;
  white-space: nowrap;
}
.course-global-modules {
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
}
.course-global-modules a,
.course-global-modules .module-coming,
.course-global-map,
.course-assistant-nav {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--course-muted);
  background: transparent;
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
}
.course-global-modules a:hover,
.course-global-map:hover { background: #edf3ee; color: var(--course-ink); }
.course-global-modules a[aria-current="page"] {
  color: var(--course-green);
  background: #eaf2ec;
  border-color: #cfe0d3;
  font-weight: 700;
}
.course-global-modules .module-two[aria-current="page"] {
  color: var(--course-blue);
  background: #edf3f7;
  border-color: #d1dfe8;
}
.course-global-modules .module-coming { opacity: .56; }
.module-number { font-size: 11px; font-variant-numeric: tabular-nums; }
.course-global-map {
  border-color: var(--course-line);
  color: var(--course-ink);
}
.course-global-map[aria-current="page"] {
  color: var(--course-blue);
  background: #edf3f7;
  border-color: #cddde7;
  font-weight: 700;
}
.course-assistant-nav {
  border-color: var(--course-green);
  color: #fff;
  background: var(--course-green);
  cursor: pointer;
  font-weight: 700;
}
.course-assistant-nav:hover { background: #1e5134; }
.course-session { display: flex; align-items: center; gap: 8px; min-width: 0; }
.course-session > span { display: grid; line-height: 1.2; text-align: right; }
.course-session strong { max-width: 88px; overflow: hidden; text-overflow: ellipsis; font-size: 12px; white-space: nowrap; }
.course-session small { color: var(--course-muted); font-size: 10px; }
.course-session button { min-height: 38px; padding: 6px 9px; border: 1px solid var(--course-line); border-radius: 8px; color: var(--course-muted); background: #fff; font: inherit; font-size: 12px; cursor: pointer; }
.course-session button:hover { color: var(--course-green); border-color: #bcd1c2; }

.course-assistant-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 79;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 17px 5px 6px;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: var(--course-green);
  box-shadow: 0 12px 30px rgba(25, 53, 40, .2);
  cursor: pointer;
}
.course-assistant-fab span {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--course-green);
  background: #fff;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: -.02em;
}
.course-assistant-fab b { font-size: 14px; font-weight: 750; }
.course-assistant-fab:hover { transform: translateY(-1px); }
.course-assistant-fab:focus-visible,
.course-assistant-nav:focus-visible { outline: 3px solid #95b7a0; outline-offset: 3px; }

.course-assistant-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(15, 31, 22, .28);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}
.course-assistant-panel {
  position: fixed;
  z-index: 81;
  top: 0;
  right: 0;
  width: min(460px, 100vw);
  height: 100dvh;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  color: var(--course-ink);
  background: #f4f7f4;
  border-left: 1px solid var(--course-line);
  box-shadow: -20px 0 50px rgba(19, 43, 30, .12);
  transform: translateX(104%);
  transition: transform .2s ease;
}
body.assistant-open .course-assistant-backdrop { opacity: 1; pointer-events: auto; }
body.assistant-open .course-assistant-panel { transform: translateX(0); }
.course-assistant-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 17px 18px;
  border-bottom: 1px solid var(--course-line);
  background: #fff;
}
.assistant-identity { display: flex; align-items: center; gap: 11px; min-width: 0; }
.assistant-avatar,
.assistant-turn-avatar {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--course-green);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: -.02em;
}
.assistant-avatar { width: 42px; height: 42px; box-shadow: inset 0 0 0 4px rgba(255,255,255,.12); }
.course-assistant-head h2 { margin: 0; font-size: 18px; }
.assistant-identity p { display: flex; align-items: center; gap: 6px; margin: 3px 0 0; color: var(--course-muted); font-size: 12px; }
.assistant-identity p i { width: 7px; height: 7px; border-radius: 50%; background: #36a267; box-shadow: 0 0 0 3px #e4f3e8; }
.assistant-head-actions { display: flex; align-items: center; gap: 6px; }
.assistant-head-actions button,
.assistant-head-actions a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 6px 9px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--course-muted);
  background: transparent;
  font: inherit;
  font-size: 12px;
  text-decoration: none;
  cursor: pointer;
}
.assistant-head-actions button:hover,
.assistant-head-actions a:hover { color: var(--course-ink); background: #f2f5f2; }
.course-assistant-close {
  border-color: var(--course-line) !important;
  color: var(--course-ink) !important;
  background: #fff !important;
}
.course-assistant-location {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 18px;
  color: var(--course-muted);
  background: #f8faf8;
  border-bottom: 1px solid var(--course-line);
  font-size: 12px;
}
.course-assistant-location span { flex: 0 0 auto; padding: 3px 7px; border-radius: 999px; color: var(--course-green); background: #e7f0e9; }
.course-assistant-location strong { overflow: hidden; color: var(--course-ink); font-weight: 620; text-overflow: ellipsis; white-space: nowrap; }
.course-assistant-messages { overflow: auto; padding: 20px 18px 28px; scroll-behavior: smooth; }
.assistant-turn { display: flex; align-items: flex-start; gap: 9px; margin: 0 0 18px; }
.assistant-turn-avatar { width: 30px; height: 30px; margin-top: 2px; }
.assistant-turn .assistant-bubble { max-width: calc(100% - 39px); padding: 12px 14px; border: 1px solid #dfe7e0; border-radius: 4px 15px 15px 15px; background: #fff; box-shadow: 0 4px 14px rgba(25,53,40,.04); line-height: 1.68; }
.assistant-turn .assistant-bubble > strong { display: block; margin-bottom: 7px; line-height: 1.45; }
.assistant-turn .assistant-bubble > p { margin: 0; white-space: pre-wrap; }
.assistant-welcome { color: var(--course-muted); }
.assistant-welcome .assistant-bubble > strong { color: var(--course-ink); font-size: 15px; }
.assistant-welcome .assistant-bubble > p { margin-bottom: 13px; }
.assistant-turn-user { flex-direction: row-reverse; }
.assistant-turn-user .assistant-speaker { flex: 0 0 auto; width: 30px; height: 30px; display: grid; place-items: center; margin-top: 2px; border-radius: 50%; color: #fff; background: var(--course-blue); font-size: 11px; font-weight: 750; }
.assistant-turn-user .assistant-bubble { border: 0; border-radius: 15px 4px 15px 15px; color: #173b2a; background: #dfece2; box-shadow: none; }
.assistant-answer-label { display: block; margin-bottom: 4px; color: var(--course-green); font-size: 11px; font-weight: 760; letter-spacing: .05em; }
.assistant-example { margin: 12px 0 2px; padding: 11px 12px; border-left: 3px solid #a87845; border-radius: 0 10px 10px 0; background: #f7f2e9; }
.assistant-example span { display: block; margin-bottom: 4px; color: #76512f; font-size: 12px; font-weight: 760; }
.assistant-example p { margin: 0; color: #3f3a32; }
.assistant-live-context,
.assistant-context-note { margin: 10px 0 12px; padding: 9px 10px; border-radius: 9px; color: #4f6156; background: #f0f5f1; font-size: 11px; line-height: 1.55; }
.assistant-context-note { margin-top: 0; border-left: 2px solid var(--course-blue); }
.assistant-live-context span,
.assistant-context-note span { display: block; margin-bottom: 3px; color: var(--course-blue); font-weight: 720; }
.assistant-live-context p,
.assistant-context-note p { margin: 0 !important; }
.assistant-prompts, .assistant-followups { display: grid; gap: 7px; }
.assistant-prompts button, .assistant-followups button {
  min-height: 39px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--course-line);
  border-radius: 10px;
  color: var(--course-ink);
  background: #f9fbf9;
  text-align: left;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.assistant-prompts button span { color: var(--course-green); }
.assistant-followups button i { color: var(--course-green); font-style: normal; }
.assistant-prompts button:hover, .assistant-followups button:hover { border-color: var(--course-green); background: #f2f7f3; }
.assistant-turn details { margin-top: 11px; padding-top: 9px; border-top: 1px solid var(--course-line); }
.assistant-turn summary { min-height: 30px; color: var(--course-green); cursor: pointer; font-size: 12px; }
.assistant-turn details p { margin: 4px 0 0; color: #4f6156; }
.assistant-concepts { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.assistant-concepts a { display: inline-flex; gap: 4px; padding: 4px 8px; border-radius: 999px; color: var(--course-blue); background: #edf3f7; font-size: 12px; text-decoration: none; }
.assistant-concepts a:hover { background: #dfeaf1; }
.assistant-followups { margin-top: 12px; }
.assistant-followups > span { color: var(--course-muted); font-size: 12px; }
.assistant-source { display: block; margin-top: 9px; color: var(--course-muted); font-size: 11px; }
.assistant-thinking .assistant-bubble { display: flex; align-items: center; gap: 9px; color: var(--course-muted); }
.assistant-thinking .assistant-bubble p { font-size: 12px; }
.assistant-thinking-dots { display: inline-flex; gap: 3px; }
.assistant-thinking-dots i { width: 5px; height: 5px; border-radius: 50%; background: var(--course-green); animation: assistant-dot 1s infinite ease-in-out; }
.assistant-thinking-dots i:nth-child(2) { animation-delay: .14s; }
.assistant-thinking-dots i:nth-child(3) { animation-delay: .28s; }
@keyframes assistant-dot { 0%,60%,100% { transform: translateY(0); opacity: .35; } 30% { transform: translateY(-3px); opacity: 1; } }
.course-assistant-form { padding: 12px 16px 14px; border-top: 1px solid var(--course-line); background: #fff; }
.assistant-intents { display: flex; gap: 6px; overflow-x: auto; margin-bottom: 9px; }
.assistant-intents button { flex: 0 0 auto; min-height: 30px; padding: 4px 9px; border: 1px solid var(--course-line); border-radius: 999px; color: var(--course-muted); background: #fff; font: inherit; font-size: 11px; cursor: pointer; }
.assistant-intents button:hover { color: var(--course-green); border-color: #a9c3b0; background: #f2f7f3; }
.course-assistant-compose { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: end; }
.course-assistant-compose textarea {
  min-height: 58px;
  max-height: 128px;
  resize: vertical;
  margin: 0;
  padding: 10px 12px;
  color: var(--course-ink);
  background: #f8faf8;
  border: 1px solid #cfdcd2;
  border-radius: 12px;
  font: inherit;
  line-height: 1.5;
}
.course-assistant-compose textarea:focus { outline: 3px solid rgba(40,99,65,.12); border-color: var(--course-green); background: #fff; }
.course-assistant-submit {
  min-height: 58px;
  padding: 0 16px;
  border: 0;
  border-radius: 12px;
  color: #fff;
  background: var(--course-green);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.course-assistant-submit:disabled { opacity: .52; cursor: wait; }
.assistant-compose-foot { min-height: 18px; display: flex; justify-content: space-between; gap: 10px; margin-top: 5px; color: #89958c; font-size: 10px; }
.assistant-status { color: var(--course-green); }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 880px) {
  .course-global-bar { grid-template-columns: auto minmax(0, 1fr) auto auto; padding: 8px 14px; gap: 8px; }
  .course-global-modules { grid-column: 1 / -1; grid-row: 2; overflow-x: auto; padding-bottom: 2px; }
  .course-global-map { margin-left: auto; }
  .course-assistant-nav { display: none; }
  .course-global-modules a, .course-global-modules .module-coming { flex: 1 0 auto; justify-content: center; }
}

@media (max-width: 560px) {
  .course-global-brand { font-size: 18px; }
  .course-global-map { min-height: 38px; padding: 5px 9px; font-size: 12px; }
  .course-session > span { display: none; }
  .course-assistant-fab { right: 14px; bottom: 14px; min-height: 48px; }
  .course-assistant-panel { top: auto; bottom: 0; width: 100%; height: min(82dvh, 690px); border-left: 0; border-top: 1px solid var(--course-line); border-radius: 18px 18px 0 0; transform: translateY(104%); }
  body.assistant-open .course-assistant-panel { transform: translateY(0); }
  .course-assistant-head { padding: 16px 16px 13px; }
  .course-assistant-messages { padding: 14px 16px; }
  .course-assistant-form { padding: 12px 16px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .course-assistant-panel, .course-assistant-backdrop, .course-assistant-fab { transition: none; }
  .assistant-thinking-dots i { animation: none; }
}