/**
 * Right Pane: Direct Full-Height Syllabus View & Minimal AI Advisor - Subtle Neumorphic Zen
 * Soft dual shadows, tactile inset inputs, and quiet monochrome aesthetic.
 */

/* Empty State */
.syllabus-empty-zen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: var(--space-xl);
  color: var(--md-sys-color-outline);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* Full Syllabus View */
.syllabus-pane-layout {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--md-sys-color-surface);
}

.syllabus-zen-bar {
  padding: 12px var(--space-md);
  background-color: var(--md-sys-color-surface);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.syllabus-title-group {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-width: 0;
}

.syllabus-title-group .code {
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-primary);
}

.syllabus-title-group .title {
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-on-surface);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 170px;
}

.syllabus-title-group .cr {
  font-size: 11px;
  background-color: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  color: var(--md-sys-color-on-surface-variant);
  box-shadow: var(--neumorph-flat);
}

.syllabus-zen-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.syllabus-iframe-container {
  flex: 1;
  display: flex;
  background-color: #ffffff;
}

.syllabus-full-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background-color: #ffffff;
}

.no-url-msg {
  padding: var(--space-xl);
  color: var(--md-sys-color-outline);
  text-align: center;
  font-size: var(--font-size-sm);
}

/* ==============================================================
   AI Assistant (Subtle Neumorphic Zen)
   ============================================================== */

.ai-assistant-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--md-sys-color-surface);
  position: relative;
}

.ai-header {
  padding: 12px var(--space-md);
  background-color: var(--md-sys-color-surface);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.ai-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.ai-avatar {
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-primary);
}

.ai-title {
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--md-sys-color-on-surface);
}

.ai-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface-variant);
  box-shadow: var(--neumorph-inset);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--md-sys-color-outline);
}

.ai-status-badge.connected .status-dot {
  background-color: #10b981;
}

.ai-status-badge.offline .status-dot {
  background-color: var(--md-sys-color-outline);
}

.ai-header-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Popdown Settings */
.ai-settings-panel {
  position: absolute;
  top: 48px;
  left: 0;
  right: 0;
  background-color: var(--md-sys-color-surface);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  padding: var(--space-md);
  box-shadow: var(--neumorph-raised);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.ai-settings-panel.hidden {
  display: none;
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: var(--font-size-xs);
}

.setting-item input[type="text"] {
  padding: 8px 10px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-xs);
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface);
  font-family: inherit;
  font-size: var(--font-size-xs);
  box-shadow: var(--neumorph-inset);
}

.setting-item.checkbox-setting {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  margin-top: 4px;
  font-weight: 500;
}

.setting-item.checkbox-setting input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--md-sys-color-primary);
  margin: 0;
  box-shadow: none;
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-xs);
  margin-top: 6px;
}

/* Chat History - Soft Neumorphic Bubbles */
.ai-chat-history {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.chat-message {
  display: flex;
  gap: var(--space-xs);
  max-width: 100%;
}

.chat-message.user {
  flex-direction: row-reverse;
}

.msg-avatar {
  font-size: 16px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-primary);
  box-shadow: var(--neumorph-flat);
}

.msg-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  max-width: 86%;
}

.msg-bubble {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  line-height: 1.55;
  word-break: break-word;
}

.chat-message.user .msg-bubble {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border-bottom-right-radius: 4px;
  box-shadow: var(--neumorph-flat);
}

.chat-message.assistant .msg-bubble {
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-bottom-left-radius: 4px;
  box-shadow: var(--neumorph-card);
}

.msg-bubble code {
  background-color: rgba(0, 0, 0, 0.05);
  padding: 2px 5px;
  border-radius: 6px;
  font-size: 12px;
}

/* Recommended Course Cards in Chat */
.recommended-courses-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.ai-course-card {
  background-color: var(--card-bg-normal);
  border: 1px solid var(--card-border-normal);
  border-radius: var(--radius-xs);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  box-shadow: var(--neumorph-card);
}

.ai-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-card-code {
  font-weight: 700;
  font-size: var(--font-size-xs);
  color: var(--md-sys-color-primary);
}

.ai-card-cr {
  font-size: 11px;
  color: var(--md-sys-color-outline);
}

.ai-card-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1.3;
}

.ai-card-sched {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
}

.ai-card-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-xs);
  margin-top: 4px;
}

.ai-card-actions .m3-button {
  padding: 3px 10px;
  font-size: 11px;
}

/* Quick Topic Prompts - Soft Tactile Pills */
.ai-quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--md-sys-color-surface-container);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  flex-shrink: 0;
  max-height: 85px;
  overflow-y: auto;
}

.quick-chip {
  background-color: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  cursor: pointer;
  white-space: nowrap;
  box-shadow: var(--neumorph-flat);
  transition: var(--transition-smooth);
}
.quick-chip:hover {
  background-color: var(--md-sys-color-surface);
  box-shadow: var(--neumorph-hover);
  transform: translateY(-1px);
}
.quick-chip:active {
  box-shadow: var(--neumorph-inset);
}

/* Input Form - Inset Input with Soft Floating Send Button */
.ai-input-form {
  padding: var(--space-sm) var(--space-md);
  background-color: var(--md-sys-color-surface);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.ai-input-form input {
  flex: 1;
  padding: 8px 12px;
  font-family: inherit;
  font-size: var(--font-size-sm);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-xs);
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface);
  outline: none;
  box-shadow: var(--neumorph-inset);
  transition: var(--transition-smooth);
}
.ai-input-form input:focus {
  border-color: var(--md-sys-color-primary);
  background-color: var(--md-sys-color-surface);
  box-shadow: var(--neumorph-inset), 0 0 0 1px var(--md-sys-color-primary);
}

.ai-input-form .m3-button {
  padding: 8px 18px;
  font-size: var(--font-size-xs);
}

/* ==============================================================
   ELA Special Custom Schedule Editor
   ============================================================== */
.ela-schedule-card {
  background-color: var(--md-sys-color-surface-container);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.ela-schedule-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px var(--space-md);
  background-color: var(--md-sys-color-surface);
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.ela-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-width: 0;
}

.ela-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--md-sys-color-primary);
}

.ela-status-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

.ela-status-badge.customized {
  background-color: rgba(34, 197, 94, 0.15);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.ela-status-badge.default {
  background-color: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-outline);
  border: 1px solid var(--md-sys-color-outline-variant);
}

.ela-collapse-btn {
  background: none;
  border: none;
  color: var(--md-sys-color-outline);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  transition: transform 0.2s ease;
}

.ela-schedule-card.collapsed .ela-collapse-btn {
  transform: rotate(-90deg);
}

.ela-schedule-card.collapsed .ela-schedule-body {
  display: none;
}

.ela-schedule-body {
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.ela-guide-text {
  font-size: 11px;
  color: var(--md-sys-color-outline);
  line-height: 1.4;
}

.ela-matrix-container {
  overflow-x: auto;
  margin: 4px 0;
}

.ela-matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  text-align: center;
}

.ela-matrix-table th {
  padding: 2px 4px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 600;
  font-size: 10px;
}

.ela-matrix-table td {
  padding: 2px;
}

.ela-matrix-table .period-label {
  font-weight: 700;
  color: var(--md-sys-color-outline);
  font-size: 10px;
  width: 18px;
}

.ela-slot-cell {
  width: 100%;
  min-width: 32px;
  height: 24px;
  padding: 0;
  font-size: 10px;
  font-family: inherit;
  font-weight: 600;
  border-radius: var(--radius-xs);
  border: 1px solid var(--md-sys-color-outline-variant);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.ela-slot-cell:hover {
  border-color: var(--md-sys-color-primary);
  background-color: var(--md-sys-color-surface-container-high);
}

.ela-slot-cell.active {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary, #ffffff);
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.ela-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-top: 2px;
}

.ela-input-group {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex: 1;
  min-width: 180px;
}

.ela-input-group label {
  font-size: 11px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
  white-space: nowrap;
}

.ela-input-group input {
  flex: 1;
  padding: 4px 8px;
  font-size: 11px;
  font-family: monospace;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-xs);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  box-shadow: var(--neumorph-inset);
  outline: none;
}

.ela-input-group input:focus {
  border-color: var(--md-sys-color-primary);
}

.ela-btn-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.ela-btn-group .m3-button {
  padding: 4px 10px;
  font-size: 11px;
  height: 28px;
}