/* AI Management Capability Assessment ── minimal styling */

body {
  background: #f7f8fa;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei",
               "PingFang TC", Helvetica, Arial, sans-serif;
}

code {
  background: #f0f1f5;
  padding: 2px 5px;
  border-radius: 3px;
}

/* ── Session layout ──────────────────────────────────────────────── */

.session-shell {
  display: grid;
  grid-template-columns: 5fr 7fr;
  height: 100vh;
  background: #fff;
}

.materials-panel {
  display: flex;
  flex-direction: column;
  border-right: 1px solid #dee2e6;
  background: #fafbfc;
  overflow: hidden;
}

.materials-panel .panel-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #dee2e6;
  background: #fff;
}

.materials-panel .nav-tabs {
  border-bottom: 1px solid #dee2e6;
  background: #fff;
}

.materials-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
  background: #fff;
}

/* ── Rendered markdown (材料內容) ─────────────────────────────── */

.markdown-body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               "Microsoft JhengHei", "PingFang TC", Helvetica, Arial, sans-serif;
  font-size: 0.94rem;
  line-height: 1.65;
  color: #2c3338;
}

.markdown-body h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e9ecef;
}

.markdown-body h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 1.5rem 0 0.6rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid #e9ecef;
  color: #1a3a5e;
}

.markdown-body h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.2rem 0 0.5rem;
  color: #2c5e8e;
}

.markdown-body h4 {
  font-size: 0.98rem;
  font-weight: 600;
  margin: 1rem 0 0.4rem;
  color: #444;
}

.markdown-body p {
  margin: 0 0 0.7rem;
}

.markdown-body ul,
.markdown-body ol {
  margin: 0 0 0.7rem;
  padding-left: 1.5rem;
}

.markdown-body li {
  margin-bottom: 0.25rem;
}

.markdown-body strong {
  font-weight: 600;
  color: #1a1a1a;
}

.markdown-body em {
  color: #555;
}

.markdown-body code {
  background: #f3f4f6;
  padding: 1px 5px;
  border-radius: 3px;
  font-family: "SF Mono", Monaco, Menlo, Consolas, monospace;
  font-size: 0.88em;
  color: #c53929;
}

.markdown-body pre {
  background: #f6f8fa;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}

.markdown-body pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

.markdown-body blockquote {
  border-left: 3px solid #adb5bd;
  margin: 0.5rem 0;
  padding: 0.3rem 0 0.3rem 1rem;
  color: #555;
  background: #f8f9fa;
  font-style: italic;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0 1rem;
  font-size: 0.9rem;
}

.markdown-body table th,
.markdown-body table td {
  border: 1px solid #dee2e6;
  padding: 0.4rem 0.6rem;
  text-align: left;
}

.markdown-body table th {
  background: #f1f3f5;
  font-weight: 600;
  color: #1a3a5e;
}

.markdown-body table tbody tr:nth-child(even) {
  background: #fafbfc;
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid #dee2e6;
  margin: 1.2rem 0;
}

/* Tabs 字體放大些,題目編號 + 名稱清楚 */
.materials-panel .nav-tabs .nav-link {
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  color: #495057;
}

.materials-panel .nav-tabs .nav-link.active {
  font-weight: 600;
  color: #1a3a5e;
}

.chat-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #dee2e6;
  background: #fff;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background: #f7f8fa;
}

.chat-input {
  padding: 0.75rem;
  background: #fff;
  border-top: 1px solid #dee2e6;
}

/* ── Messages ────────────────────────────────────────────────────── */

.msg {
  display: flex;
  margin-bottom: 0.75rem;
}

.msg-user {
  justify-content: flex-end;
}

.msg-user .msg-content {
  background: #cfe2ff;
  color: #084298;
}

.msg-assistant .msg-content {
  background: #e9ecef;
  color: #212529;
}

.msg-content {
  display: inline-block;
  max-width: 85%;
  padding: 0.55rem 0.85rem;
  border-radius: 12px;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: inherit;
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.55;
}

/* ── Timer ───────────────────────────────────────────────────────── */

#timer {
  font-family: "SF Mono", Monaco, Menlo, Consolas, monospace;
  font-size: 0.95rem;
  min-width: 60px;
  text-align: center;
}

#timer.warning {
  background: #ffc107 !important;
  color: #000;
}

#timer.overtime {
  background: #dc3545 !important;
  color: #fff;
}