/* Base layout */
.ican-lab {
  --ican-red: #9d0707;
  --ican-blue: #0057b7;
  --ican-amber: #d48b00;
  --ican-gray: #555555;

  display: grid;
  grid-template-columns: 230px minmax(0, 1.7fr) 260px;
  gap: 0;
  max-width: 1200px;
  margin: 40px auto;
  border: 1px solid #e1e1e1;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #222;
  min-height: 600px;
}

/* Sidebar */
.ican-lab-sidebar {
  background: var(--ican-red);
  color: #fff;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.ican-lab-logo {
  font-size: 1.4rem;
  font-weight: 700;
}

.ican-lab-menu button {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  color: #f5f5f5;
  padding: 7px 4px;
  margin-bottom: 2px;
  cursor: pointer;
  font-size: 0.95rem;
}

.ican-lab-menu button.active {
  background: #fff;
  color: var(--ican-red);
}

.ican-lab-streak span {
  font-size: 0.8rem;
  text-transform: uppercase;
  opacity: 0.8;
}

.ican-lab-streak strong {
  font-size: 2rem;
  display: block;
}

.ican-lab-streak small {
  font-size: 0.8rem;
}

/* Main column */
.ican-lab-main {
  border-left: 1px solid #e1e1e1;
  border-right: 1px solid #e1e1e1;
  display: flex;
  flex-direction: column;
}

.ican-lab-topbar {
  display: flex;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid #e1e1e1;
  font-size: 0.9rem;
  background: #fafafa;
}

.ican-lab-topbar select {
  margin-left: 4px;
}

/* Chat */
.ican-lab-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #f7f7f7;
}

.ican-lab-messages {
  flex: 1;
  padding: 14px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg {
  padding: 9px 11px;
  font-size: 0.95rem;
  max-width: 80%;
}

.msg-assistant {
  background: #ffffff;
  align-self: flex-start;
}

.msg-user {
  background: var(--ican-blue);
  color: #ffffff;
  align-self: flex-end;
}

/* clickable vocab words in assistant messages */
.ican-lab-word {
  cursor: pointer;
  border-bottom: 1px dotted rgba(0,0,0,0.35);
  padding-bottom: 1px;
}
.ican-lab-word:hover {
  background: rgba(157,7,7,0.06);
}

/* Chat input */
.ican-lab-input {
  display: flex;
  padding: 10px 14px;
  border-top: 1px solid #e1e1e1;
  gap: 8px;
  background: #ffffff;
}

.ican-lab-input input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid #dcdcdc;
  font-size: 0.95rem;
}

.ican-lab-input button {
  border: none;
  padding: 0 16px;
  background: var(--ican-red);
  color: #fff;
  cursor: pointer;
}

/* Panels (Vocabulary, Grammar, etc) */
.ican-lab-panel {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

.ican-lab-panel-hidden {
  display: none;
}

/* Vocabulary subtabs */
.ican-lab-subtabs {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.ican-lab-subtabs button {
  border: 1px solid #dcdcdc;
  background: #f7f7f7;
  padding: 6px 10px;
  font-size: 0.85rem;
  cursor: pointer;
}

.ican-lab-subtabs button.active {
  background: var(--ican-red);
  color: #fff;
  border-color: var(--ican-red);
}

.ican-lab-subpanel-hidden {
  display: none;
}

.ican-lab-wordlist {
  list-style: none;
  padding: 0;
  margin: 0;
  border: 1px solid #e4e4e4;
}

.ican-lab-wordlist li {
  padding: 6px 8px;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
  cursor: pointer;
}

.ican-lab-wordlist li:last-child {
  border-bottom: none;
}

.ican-lab-wordlist.small li {
  font-size: 0.85rem;
}

.ican-lab-dict-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 12px;
}

/* Cards */
.ican-lab-card {
  border: 1px solid #e4e4e4;
  padding: 14px;
  font-size: 0.95rem;
}

.ican-lab-card-placeholder {
  color: #999;
}

.ican-lab-card-example {
  margin-top: 8px;
  font-style: italic;
}

.ican-lab-translation-toggle {
  margin-top: 10px;
  border: 1px solid #ddd;
  background: #f7f7f7;
  padding: 6px 10px;
  cursor: pointer;
}

.ican-lab-card-translation {
  margin-top: 8px;
  font-weight: 500;
}

.ican-lab-hidden {
  display: none;
}

/* Flashcard buttons */
.ican-lab-review-buttons {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.ican-btn {
  border: none;
  padding: 8px 14px;
  cursor: pointer;
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 600;
}

.ican-btn.know {
  background: var(--ican-red);
}

.ican-btn.soso {
  background: var(--ican-amber);
}

.ican-btn.dont {
  background: var(--ican-gray);
}

.ican-lab-review-progress {
  margin-top: 8px;
  font-size: 0.85rem;
  color: #666;
}

/* Right column widgets */
.ican-lab-right {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #fafafa;
}

.ican-lab-widget {
  border: 1px solid #e4e4e4;
  padding: 10px;
  font-size: 0.9rem;
}

.ican-lab-widget h3 {
  margin-top: 0;
  font-size: 0.95rem;
}

/* Progress circle (fake) */
.ican-lab-progress-circle {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  border: 8px solid #e4e4e4;
  border-top-color: var(--ican-red);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 6px;
}

/* Tour overlay */
.ican-lab-tour {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.ican-lab-tour-step {
  background: #ffffff;
  padding: 20px 22px;
  max-width: 420px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.ican-lab-tour-step h3 {
  margin-top: 0;
}

.ican-lab-tour-step button {
  margin-right: 8px;
  border: none;
  padding: 7px 14px;
  cursor: pointer;
  font-size: 0.9rem;
}

.ican-lab-tour-next,
.ican-lab-tour-finish {
  background: var(--ican-red);
  color: #fff;
}

.ican-lab-tour-skip {
  background: #e4e4e4;
}

/* Utility */
.ican-lab-hidden {
  display: none;
}

/* Responsive */
@media (max-width: 980px) {
  .ican-lab {
    grid-template-columns: 1fr;
  }
  .ican-lab-sidebar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .ican-lab-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  .ican-lab-right {
    order: 3;
  }
}