/* CORA — matches CADO site theme (light + dark) */

#view-ai.view-active {
  padding-top: 1.25rem;
  padding-bottom: 2rem;
}

.cora-simple {
  display: flex;
  flex-direction: column;
  max-width: 780px;
  margin: 0 auto;
  min-height: calc(100vh - var(--header-h) - 12rem);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  color: var(--text);
}

.cora-simple-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  padding: 0.9rem 1.15rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-muted);
}

.cora-simple-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
}

.cora-simple-status {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--success);
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--success-soft);
}

.cora-simple-status.cora-live {
  color: #059669;
}

[data-theme="dark"] .cora-simple-status.cora-live {
  color: #6ee7b7;
}

.cora-simple-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.5rem 0.75rem;
  margin-left: auto;
}

.cora-simple-label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.cora-simple-select {
  min-width: 9rem;
  max-width: 11rem;
  font-size: 0.82rem;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
}

.cora-simple-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.35rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 360px;
  max-height: calc(100vh - var(--header-h) - 240px);
  background: var(--bg);
}

.cora-simple-messages .message {
  max-width: 100%;
}

.cora-simple-messages .message-bubble {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.cora-simple-messages .message-user .message-bubble {
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  color: #fff;
  border: none;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
}

[data-theme="dark"] .cora-simple-messages .message-user .message-bubble {
  background: linear-gradient(135deg, #6366f1, #22d3ee);
}

.cora-simple-form {
  display: flex;
  gap: 0.55rem;
  padding: 0.9rem 1.15rem 1.1rem;
  border-top: 1px solid var(--border);
  background: var(--bg-muted);
}

.cora-simple-input {
  flex: 1;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated) !important;
  color: var(--text) !important;
  font: inherit;
  font-size: 0.95rem;
}

.cora-simple-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.cora-simple-input::placeholder {
  color: var(--text-muted);
}

/* Welcome card */
.cora-welcome-msg .message-bubble {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

.cora-welcome-card {
  padding: 1.35rem 1.4rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--bg-elevated) 0%, var(--bg-muted) 100%);
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
}

.cora-welcome-title {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  font-family: var(--font-display);
  color: var(--text);
}

.cora-welcome-lead {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.cora-welcome-lead strong {
  color: var(--text);
}

.cora-welcome-steps {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.cora-welcome-steps li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.cora-welcome-steps li span:first-child {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 700;
}

.cora-welcome-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.cora-chip {
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

.cora-chip:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-1px);
}

/* Structured answers */
.cora-structured { display: flex; flex-direction: column; gap: 0.5rem; }

.cora-block {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-muted);
  overflow: hidden;
}

.cora-block-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text);
  list-style: none;
  user-select: none;
}

.cora-block-summary::-webkit-details-marker { display: none; }

.cora-block-body {
  padding: 0 0.85rem 0.85rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.cora-block--answer { border-left: 3px solid #3b82f6; }
.cora-block--explain { border-left: 3px solid #f59e0b; }
.cora-block--exam { border-left: 3px solid var(--success); }

.cora-exam-list { margin: 0; padding-left: 1.2rem; color: var(--text); }
.cora-exam-list li { margin-bottom: 0.35rem; }
.cora-response-actions { margin-top: 0.35rem; }

/* Tools sheet */
.cora-tools-sheet {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  justify-content: flex-end;
}

.cora-tools-sheet.hidden { display: none; }

.cora-tools-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
}

.cora-tools-sheet-inner {
  position: relative;
  width: min(360px, 92vw);
  height: 100%;
  overflow-y: auto;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border);
  padding: 1rem 1.1rem 2rem;
  box-shadow: var(--shadow-lg);
  color: var(--text);
}

.cora-tools-sheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.cora-tools-sheet-head h2 {
  margin: 0;
  font-size: 1.1rem;
  font-family: var(--font-display);
}

.cora-tools-close {
  background: var(--bg-muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
}

.cora-tools-group {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.cora-tools-group:last-child { border-bottom: none; }

.cora-tools-group h3 {
  margin: 0 0 0.35rem;
  font-size: 0.88rem;
}

.cora-tools-hint {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.cora-tools-group input,
.cora-tools-group textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  margin-bottom: 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
}

.cora-tools-action {
  display: block;
  width: 100%;
  margin-bottom: 0.4rem;
  text-align: left;
}

.cora-tools-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.cora-tools-link:hover { text-decoration: underline; }

.cora-v2-history-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.55rem;
  margin-bottom: 0.25rem;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

.cora-v2-history-item strong { display: block; font-size: 0.8rem; }
.cora-v2-history-item small { color: var(--text-muted); font-size: 0.68rem; }

.cora-v2-history-item.is-active,
.cora-v2-history-item:hover {
  background: var(--primary-soft);
  border-color: var(--border);
}

.cora-v2-empty { font-size: 0.78rem; color: var(--text-muted); margin: 0; }

.cora-exam-timer {
  font-size: 1rem;
  font-weight: 800;
  color: var(--error);
  font-variant-numeric: tabular-nums;
}

.cora-exam-active .cora-simple-controls .cora-simple-label { display: none; }

.cora-flash-modal .settings-panel { max-width: 480px; max-height: 80vh; overflow-y: auto; }

.cora-flash-card {
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-muted);
}

.cora-flash-num {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--primary);
}

@media (max-width: 640px) {
  .cora-simple-bar { flex-direction: column; align-items: stretch; }
  .cora-simple-controls { margin-left: 0; }
  .cora-simple-label { flex: 1; min-width: 0; }
  .cora-simple-select { max-width: 100%; width: 100%; }
  .cora-simple-messages { max-height: calc(100vh - var(--header-h) - 300px); }
}