/* ============================
   Wathbah Auditor Assistant
   Light Dashboard Theme
   ============================ */

:root {
  --color-bg: #edf0f7;
  --color-bg-card: #ffffff;
  --color-bg-elevated: #f8f9fc;
  --color-border: #e2e6ef;
  --color-border-focus: #3b5998;
  --color-text: #1a202c;
  --color-text-secondary: #4a5568;
  --color-text-muted: #718096;
  --color-text-hint: #a0aec0;
  --color-primary: #2d4185;
  --color-primary-hover: #3b5998;
  --color-primary-light: #e8edfc;
  --color-accent: #4a6db5;
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-error: #dc2626;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --card-header-bg: linear-gradient(135deg, #2c3a6e 0%, #3b5998 50%, #4a6db5 100%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
}

.hidden {
  display: none !important;
}

/* ========================
   Navigation Bar
   ======================== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 2rem;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.nav-btn-filled {
  color: white;
  background: var(--color-primary);
}

.nav-btn-filled:hover {
  background: var(--color-primary-hover);
}

.nav-btn-outlined {
  color: var(--color-primary);
  background: transparent;
  border: 1.5px solid var(--color-primary);
}

.nav-btn-outlined:hover {
  background: var(--color-primary-light);
}

/* ========================
   Dashboard Layout
   ======================== */
.dashboard {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

/* ========================
   Dashboard Hero
   ======================== */
.dashboard-hero {
  text-align: center;
  padding: 2rem 0 1.5rem;
}

.hero-icon {
  margin: 0 auto 0.75rem;
  width: 48px;
  height: 48px;
}

.hero-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.25rem;
}

.hero-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ========================
   Previous Sessions
   ======================== */
.prev-sessions-section {
  margin-bottom: 1.5rem;
}

.prev-sessions-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
  padding-left: 0.25rem;
}

.prev-sessions-carousel {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.prev-sessions-carousel::-webkit-scrollbar {
  height: 6px;
}

.prev-sessions-carousel::-webkit-scrollbar-track {
  background: var(--color-bg-elevated);
  border-radius: 3px;
}

.prev-sessions-carousel::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

.session-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.session-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.session-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.session-card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.session-card-date {
  font-size: 0.6875rem;
  color: var(--color-text-hint);
  white-space: nowrap;
}

.session-card-stats {
  display: flex;
  gap: 0.75rem;
}

.session-stat {
  text-align: center;
  flex: 1;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.5rem;
}

.session-stat-num {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.session-stat-label {
  font-size: 0.625rem;
  color: var(--color-text-hint);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.session-card-reqs {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.session-req-item {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  line-height: 1.3;
}

.session-ref-id {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.session-req-desc {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-req-more {
  font-size: 0.6875rem;
  color: var(--color-text-hint);
  font-style: italic;
}

.session-card-colls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.session-coll-tag {
  font-size: 0.6875rem;
  background: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.session-card-query {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
  line-height: 1.35;
  padding: 0.4rem 0.6rem;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
}

.btn-continue-session {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  width: 100%;
  padding: 0.55rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  color: white;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  margin-top: auto;
}

.btn-continue-session:hover {
  background: var(--color-primary-hover);
}

/* ========================
   Dashboard Cards
   ======================== */
.dashboard-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.dashboard-card:hover {
  box-shadow: var(--shadow-lg);
}

/* Card Header */
.card-header {
  background: var(--card-header-bg);
  padding: 1.25rem 1.5rem;
  color: white;
}

.card-header-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.card-header-icon {
  flex-shrink: 0;
  opacity: 0.9;
}

.card-header-text h2 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.125rem;
}

.card-header-text p {
  font-size: 0.8125rem;
  opacity: 0.8;
  font-weight: 400;
}

/* Card Stat Pill */
.card-stat {
  background: rgba(0, 0, 0, 0.18);
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.8125rem;
  opacity: 0.85;
  font-weight: 400;
}

/* Card Body */
.card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ========================
   Framework Search Bar
   ======================== */
.framework-search-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.search-input-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-wrapper .search-icon {
  position: absolute;
  left: 0.75rem;
  color: var(--color-text-hint);
  pointer-events: none;
}

#framework-search {
  width: 100%;
  padding: 0.625rem 2.25rem 0.625rem 2.5rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

#framework-search:hover {
  border-color: var(--color-text-hint);
}

#framework-search:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.12);
  background: white;
}

#framework-search::placeholder {
  color: var(--color-text-hint);
}

.clear-search {
  position: absolute;
  right: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.clear-search:hover {
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

.btn-filter {
  padding: 0.5rem 0.875rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-filter:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ========================
   Framework List
   ======================== */
.framework-list {
  flex: 1;
  max-height: 320px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.framework-list::-webkit-scrollbar {
  width: 5px;
}

.framework-list::-webkit-scrollbar-track {
  background: transparent;
}

.framework-list::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

.framework-list::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-hint);
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.loading-state .spinner {
  animation: spin 1s linear infinite;
}

/* Option Groups (framework categories) */
.option-group {
  border-bottom: 1px solid var(--color-border);
}

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

.option-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--color-bg-card);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-primary);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.option-group-header:hover {
  background: var(--color-primary-light);
}

.option-group-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  cursor: pointer;
  min-width: 0;
}

.option-group-toggle span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chevron-icon {
  flex-shrink: 0;
  transition: transform 0.2s ease;
  color: var(--color-text-muted);
}

.option-group.collapsed .chevron-icon {
  transform: rotate(0deg);
}

.option-group:not(.collapsed) .chevron-icon {
  transform: rotate(90deg);
}

.option-group-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.option-group-count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  padding: 0.2rem 0.5rem;
  border-radius: 10px;
}

.btn-group-select {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-group-select:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.btn-group-select svg {
  flex-shrink: 0;
}

.option-group-items {
  display: block;
}

.option-group.collapsed .option-group-items {
  display: none;
}

/* Option Items (individual requirements) */
.option-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 1px solid var(--color-bg-elevated);
}

.option-item:last-child {
  border-bottom: none;
}

.option-item:hover {
  background: var(--color-primary-light);
}

.option-item.selected {
  background: rgba(59, 89, 152, 0.08);
}

.option-checkbox {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  margin-top: 2px;
}

.option-item:hover .option-checkbox {
  border-color: var(--color-primary);
}

.option-item.selected .option-checkbox {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.option-checkbox svg {
  opacity: 0;
  transform: scale(0.5);
  transition: var(--transition);
}

.option-item.selected .option-checkbox svg {
  opacity: 1;
  transform: scale(1);
}

.option-content {
  flex: 1;
  min-width: 0;
}

.option-ref-id {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-primary-light);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.25rem;
  display: inline-block;
}

.option-description {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.option-depth-indicator {
  font-size: 0.75rem;
  color: var(--color-text-hint);
  margin-right: 0.25rem;
}

.no-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem;
  color: var(--color-text-muted);
  text-align: center;
}

.no-results svg {
  opacity: 0.4;
}

.no-results p {
  font-size: 0.875rem;
}

/* ========================
   Reference Files Card
   ======================== */
.btn-new-collection {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  border: 1.5px solid rgba(59, 89, 152, 0.25);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 1.25rem;
}

.btn-new-collection:hover {
  background: rgba(59, 89, 152, 0.12);
  border-color: var(--color-primary);
}

/* Inline new-collection input row */
.new-collection-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  margin-bottom: 1.25rem;
}

.new-collection-input {
  flex: 1;
  min-width: 0;
  padding: 0.6rem 0.875rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background: var(--color-bg-card);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
}

.new-collection-input::placeholder {
  color: var(--color-text-hint);
}

.new-collection-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.1);
}

.btn-collection-add,
.btn-collection-cancel {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.btn-collection-add {
  background: var(--color-primary);
  color: white;
}

.btn-collection-add:hover {
  background: #2d4a7a;
}

.btn-collection-add:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-collection-cancel {
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
}

.btn-collection-cancel:hover {
  color: var(--color-error);
  border-color: rgba(220, 38, 38, 0.3);
  background: rgba(220, 38, 38, 0.05);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: 2rem 1rem;
  text-align: center;
}

.empty-state svg {
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 0.25rem;
}

.empty-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ========================
   Initial Query Card
   ======================== */
.query-section {
  margin-bottom: 1.25rem;
}

.section-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.625rem;
}

textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  resize: vertical;
  min-height: 100px;
  transition: var(--transition);
  line-height: 1.6;
}

textarea:hover {
  border-color: var(--color-text-hint);
}

textarea:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.12);
  background: white;
}

textarea::placeholder {
  color: var(--color-text-hint);
}

.query-hint {
  font-size: 0.75rem;
  color: var(--color-text-hint);
  margin-top: 0.5rem;
  line-height: 1.5;
}

.textarea-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.375rem;
}

.char-count {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-hint);
}

.context-section {
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
}

.btn-upload-context {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.btn-upload-context:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ========================
   Collections Accordion
   ======================== */
.collections-list {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1rem;
}

.collections-list:empty {
  display: none;
}

.collection-group {
  border-bottom: 1px solid var(--color-border);
}

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

.collection-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 0.875rem;
  background: var(--color-bg-card);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-primary);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  gap: 0.5rem;
}

.collection-group-header:hover {
  background: var(--color-primary-light);
}

.collection-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.collection-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.collection-group.collapsed .chevron-icon {
  transform: rotate(0deg);
}

.collection-group:not(.collapsed) .chevron-icon {
  transform: rotate(90deg);
}

.collection-actions {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  flex-shrink: 0;
}

.collection-count {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  white-space: nowrap;
}

.btn-collection-upload,
.btn-collection-delete {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3rem 0.5rem;
  font-size: 0.6875rem;
  font-weight: 500;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-collection-upload {
  color: var(--color-primary);
}

.btn-collection-upload:hover {
  color: white;
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-collection-delete {
  color: var(--color-text-muted);
  padding: 0.3rem;
}

.btn-collection-delete:hover {
  color: var(--color-error);
  background: rgba(220, 38, 38, 0.05);
  border-color: rgba(220, 38, 38, 0.3);
}

.collection-items {
  display: block;
  background: var(--color-bg-elevated);
}

.collection-group.collapsed .collection-items {
  display: none;
}

.collection-empty {
  padding: 1rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-hint);
}

.collection-file-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.collection-file-item:last-child {
  border-bottom: none;
}

.collection-file-item:hover {
  background: rgba(59, 89, 152, 0.04);
}

.file-icon {
  flex-shrink: 0;
  color: var(--color-text-hint);
}

.file-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-status {
  flex-shrink: 0;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
}

.file-status.active {
  color: var(--color-success);
  background: rgba(22, 163, 74, 0.1);
}

.file-status.processing {
  color: var(--color-warning);
  background: rgba(217, 119, 6, 0.1);
  animation: pulse-processing 1.5s ease-in-out infinite;
}

.file-status.failed {
  color: var(--color-error);
  background: rgba(220, 38, 38, 0.1);
}

@keyframes pulse-processing {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.btn-file-delete {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--color-text-hint);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  opacity: 0;
}

.collection-file-item:hover .btn-file-delete {
  opacity: 1;
}

.btn-file-delete:hover {
  color: var(--color-error);
  background: rgba(220, 38, 38, 0.08);
}

/* Collection & file selection checkboxes */
.collection-header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.collection-select-checkbox,
.file-select-checkbox {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  cursor: pointer;
  transition: var(--transition);
}

.collection-select-checkbox {
  width: 20px;
  height: 20px;
}

.collection-select-checkbox svg,
.file-select-checkbox svg {
  opacity: 0;
  transition: opacity 0.15s;
}

.collection-select-checkbox.checked,
.file-select-checkbox.checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.collection-select-checkbox.checked svg,
.file-select-checkbox.checked svg {
  opacity: 1;
}

.collection-select-checkbox.partial {
  background: var(--color-primary);
  border-color: var(--color-primary);
  position: relative;
}

.collection-select-checkbox.partial svg {
  opacity: 0;
}

.collection-select-checkbox.partial::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 2px;
  background: white;
  border-radius: 1px;
}

.collection-select-checkbox:hover,
.file-select-checkbox:hover {
  border-color: var(--color-primary);
}

.file-select-checkbox {
  width: 16px;
  height: 16px;
}

/* Selected file item highlight */
.collection-file-item.selected {
  background: rgba(59, 89, 152, 0.06);
  border-left: 2px solid var(--color-primary);
  padding-left: calc(0.75rem - 2px);
}

.collection-file-item.selected .file-select-checkbox {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.collection-file-item.selected .file-select-checkbox svg {
  opacity: 1;
}

/* ========================
   Session Summary
   ======================== */
.session-summary {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  padding: 1.5rem 2rem;
}

.summary-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.summary-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.summary-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.btn-start-session {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: white;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(45, 65, 133, 0.25);
}

.btn-start-session:hover:not(:disabled) {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 16px rgba(45, 65, 133, 0.35);
  transform: translateY(-1px);
}

.btn-start-session:active:not(:disabled) {
  transform: translateY(0);
}

.btn-start-session:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-start-session .spinner {
  animation: spin 1s linear infinite;
}

.summary-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.summary-stat-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.summary-stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.summary-stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ========================
   Modal Styles
   ======================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  transition-property: opacity, visibility;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 680px;
  max-height: calc(100vh - 3rem);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  transform: scale(0.95) translateY(10px);
  transition: var(--transition);
  transition-property: transform;
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Modal Buttons */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn .spinner {
  animation: spin 1s linear infinite;
}

.btn-ghost {
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
}

.btn-ghost:hover:not(:disabled) {
  color: var(--color-text);
  border-color: var(--color-text-muted);
  background: var(--color-bg-elevated);
}

.btn-confirm {
  color: white;
  background: var(--color-success);
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.25);
}

.btn-confirm:hover:not(:disabled) {
  background: #15803d;
  box-shadow: 0 4px 16px rgba(22, 163, 74, 0.35);
}

.btn-confirm .spinner {
  animation: spin 1s linear infinite;
}

/* ========================
   Result Sections (Modal)
   ======================== */
.requirement-result-group {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.requirement-result-group:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.requirement-result-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding: 0.875rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.requirement-result-number {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 50%;
}

.requirement-result-info {
  flex: 1;
}

.requirement-result-framework {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.requirement-result-ref {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.requirement-result-desc {
  font-size: 0.8125rem;
  color: var(--color-text);
  line-height: 1.4;
}

.result-section {
  margin-bottom: 1.75rem;
}

.result-section:last-child {
  margin-bottom: 0;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.result-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
}

.result-title svg {
  color: var(--color-primary);
}

.result-count {
  margin-left: auto;
  font-size: 0.6875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.result-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.result-list-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  position: relative;
}

.result-list-item:hover {
  border-color: var(--color-text-hint);
}

.result-bullet {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: 50%;
}

.result-list-item.question .result-bullet {
  background: var(--color-warning);
}

.result-list-item.suggestion .result-bullet {
  background: var(--color-success);
}

.result-content {
  flex: 1;
  min-width: 0;
}

.result-item-title {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 0.375rem;
  line-height: 1.4;
}

.result-item-desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.purpose-label {
  color: var(--color-warning);
  font-weight: 500;
}

.item-actions {
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: var(--transition);
  margin-left: auto;
  flex-shrink: 0;
}

.result-list-item:hover .item-actions {
  opacity: 1;
}

.btn-icon-action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.btn-icon-action:hover {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.btn-icon-action.delete:hover {
  background: rgba(220, 38, 38, 0.05);
  color: var(--color-error);
  border-color: rgba(220, 38, 38, 0.3);
}

.btn-add {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  border: 1px solid rgba(59, 89, 152, 0.2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-add:hover {
  background: rgba(59, 89, 152, 0.12);
  border-color: var(--color-primary);
}

/* Edit Form (Modal) */
.result-list-item.editing {
  background: white;
  border-color: var(--color-primary);
  padding: 1rem;
}

.edit-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

.edit-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.edit-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(59, 89, 152, 0.12);
}

.edit-textarea {
  width: 100%;
  min-height: 70px;
  padding: 0.625rem 0.875rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  resize: vertical;
  transition: var(--transition);
}

.edit-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(59, 89, 152, 0.12);
}

.edit-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.btn-edit-cancel {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-edit-cancel:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.btn-edit-save {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: white;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-edit-save:hover {
  background: var(--color-primary-hover);
}

/* Modal Error */
.modal-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
  color: var(--color-error);
}

.modal-error svg {
  margin-bottom: 1rem;
  opacity: 0.7;
}

.modal-error h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.modal-error p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Submit Success */
.submit-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem;
  color: var(--color-success);
}

.submit-success svg {
  margin-bottom: 1.25rem;
  animation: scaleIn 0.4s ease-out;
}

.submit-success h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.submit-success p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.submit-summary {
  width: 100%;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: left;
}

.summary-row {
  display: flex;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.summary-row:last-child {
  border-bottom: none;
}

.summary-label {
  flex-shrink: 0;
  width: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.summary-value {
  font-size: 0.875rem;
  color: var(--color-text);
}

/* ========================
   Toast Notifications
   ======================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  pointer-events: auto;
  animation: toastSlideIn 0.3s ease-out;
}

.toast.toast-exit {
  animation: toastSlideOut 0.3s ease-in forwards;
}

.toast-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.toast.success .toast-icon {
  color: var(--color-success);
  background: rgba(22, 163, 74, 0.1);
}

.toast.error .toast-icon {
  color: var(--color-error);
  background: rgba(220, 38, 38, 0.1);
}

.toast.info .toast-icon {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.toast-message {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--color-text-hint);
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.toast-close:hover {
  color: var(--color-text);
  background: var(--color-bg-elevated);
}

/* ========================
   Loading State
   ======================== */
.loading {
  position: relative;
}

.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(59, 89, 152, 0.06), transparent);
  animation: shimmer 1.5s infinite;
}

.error-message {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  background: rgba(220, 38, 38, 0.05);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: 0.75rem;
}

/* ========================
   Animations
   ======================== */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastSlideOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100%); }
}

@keyframes tagIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

/* ========================
   Selected Tags (hidden in dashboard, used by JS)
   ======================== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  background: var(--color-primary-light);
  border: 1px solid rgba(59, 89, 152, 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--color-primary);
  max-width: 200px;
  animation: tagIn 0.2s ease-out;
}

.tag-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tag-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  border-radius: 50%;
  transition: var(--transition);
  flex-shrink: 0;
}

.tag-remove:hover {
  color: var(--color-error);
  background: rgba(220, 38, 38, 0.1);
}

/* Info items (used in selected panel / modal) */
.info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  position: relative;
}

.info-item-number {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: 50%;
}

.info-item-content {
  flex: 1;
  min-width: 0;
}

.info-item-framework {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.info-item-ref {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-accent);
  background: var(--color-primary-light);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 0.375rem;
}

.info-item-desc {
  font-size: 0.8125rem;
  color: var(--color-text);
  line-height: 1.4;
}

/* ========================
   Responsive Design
   ======================== */
@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .summary-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .dashboard {
    padding: 1rem;
  }

  .navbar {
    padding: 0.75rem 1rem;
  }
}

@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .nav-center {
    order: 3;
    width: 100%;
    justify-content: center;
  }

  .summary-top {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .btn-start-session {
    width: 100%;
    justify-content: center;
  }

  .summary-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .session-summary {
    padding: 1.25rem;
  }
}

@media (max-width: 480px) {
  .summary-stats {
    grid-template-columns: 1fr 1fr;
  }

  .navbar {
    padding: 0.75rem;
  }

  .modal {
    max-height: calc(100vh - 2rem);
  }

  .modal-header {
    padding: 1rem;
  }

  .modal-body {
    padding: 1rem;
  }
}

/* ========================
   Chat Page
   ======================== */

body.chat-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--color-bg);
}

body.chat-page .navbar {
  flex-shrink: 0;
}

/* Context Bar */
.chat-context-bar {
  flex-shrink: 0;
  display: flex;
  gap: 1rem;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-card);
  overflow-x: auto;
}

.context-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1.25rem;
  min-width: 200px;
  flex: 1;
}

.context-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.context-card-icon.requirements-icon { background: var(--color-primary); }
.context-card-icon.files-icon { background: var(--color-primary); }
.context-card-icon.query-icon { background: var(--color-primary); }

.context-card-info {
  min-width: 0;
}

.context-card-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.context-card-value {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.35;
}

.context-card-detail {
  flex: 2;
  min-width: 250px;
}

.ctx-chevron {
  display: inline-block;
  vertical-align: middle;
  margin-left: 0.25rem;
  transition: transform 0.2s;
  color: var(--color-text-hint);
}

.context-card:hover .ctx-chevron {
  color: var(--color-primary);
}

/* Context details expandable panels */
.context-details-panel {
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 2rem;
  max-height: 200px;
  overflow-y: auto;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from { max-height: 0; opacity: 0; padding-top: 0; padding-bottom: 0; }
  to { max-height: 200px; opacity: 1; }
}

.context-details-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ctx-group-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  padding: 0.4rem 0 0.15rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0.15rem;
}

.ctx-detail-item {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  padding: 0.2rem 0 0.2rem 0.5rem;
  line-height: 1.35;
}

.ctx-ref-id {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.ctx-desc {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ctx-empty {
  font-size: 0.75rem;
  color: var(--color-text-hint);
  font-style: italic;
  padding: 0.5rem 0;
}

.context-detail-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.context-detail-text {
  font-size: 0.8125rem;
  color: var(--color-text-primary);
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Chat Container */
.chat-container {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Messages */
.chat-msg {
  display: flex;
  max-width: 100%;
}

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

.chat-msg-ai {
  justify-content: flex-start;
}

.chat-bubble {
  max-width: 720px;
  border-radius: var(--radius-lg);
  padding: 0.875rem 1.25rem;
  line-height: 1.6;
  font-size: 0.9375rem;
}

.chat-bubble-user {
  background: var(--color-primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-bubble-ai {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: 4px;
}

.chat-bubble-text {
  word-wrap: break-word;
}

/* Markdown headings */
.chat-bubble-text .md-h1,
.chat-bubble-text .md-h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 1rem 0 0.5rem;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.35rem;
}

.chat-bubble-text .md-h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0.875rem 0 0.375rem;
  color: var(--color-text-primary);
}

.chat-bubble-text .md-h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 0.75rem 0 0.25rem;
  color: var(--color-text-secondary);
}

.chat-bubble-text .md-h1:first-child,
.chat-bubble-text .md-h2:first-child,
.chat-bubble-text .md-h3:first-child,
.chat-bubble-text .md-h4:first-child {
  margin-top: 0;
}

/* Unordered lists */
.chat-bubble-text .md-ul {
  margin: 0.5rem 0;
  padding-left: 1.35rem;
  list-style-type: disc;
}

.chat-bubble-text .md-ul-item {
  margin-bottom: 0.3rem;
  line-height: 1.55;
}

/* Ordered lists */
.chat-bubble-text .md-ol {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
  list-style-type: decimal;
}

.chat-bubble-text .md-ol-item {
  margin-bottom: 0.3rem;
  line-height: 1.55;
}

/* Nested bold inside list items */
.chat-bubble-text li strong {
  color: var(--color-text-primary);
}

/* Inline code */
.chat-bubble-text .md-inline-code {
  background: rgba(0, 0, 0, 0.06);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.85em;
  font-family: 'SF Mono', Monaco, Consolas, monospace;
}

.chat-bubble-user .chat-bubble-text .md-inline-code {
  background: rgba(255, 255, 255, 0.2);
}

/* Code blocks */
.chat-bubble-text .md-code-block {
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
  margin: 0.625rem 0;
  overflow-x: auto;
  font-family: 'SF Mono', Monaco, Consolas, monospace;
  font-size: 0.825rem;
  line-height: 1.5;
}

.chat-bubble-text .md-code-block code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  font-family: inherit;
}

/* Horizontal rule */
.chat-bubble-text .md-hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0.75rem 0;
}

/* Legacy fallback code style */
.chat-bubble-text code {
  background: rgba(0, 0, 0, 0.06);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  font-size: 0.875em;
  font-family: 'SF Mono', Monaco, Consolas, monospace;
}

.chat-bubble-user .chat-bubble-text code {
  background: rgba(255, 255, 255, 0.2);
}

/* Bubble footer (time + copy) */
.chat-bubble-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.5rem;
  gap: 0.75rem;
}

.chat-bubble-time {
  font-size: 0.6875rem;
  opacity: 0.5;
  white-space: nowrap;
}

.chat-bubble-user .chat-bubble-time {
  text-align: right;
  margin-top: 0.375rem;
}

/* Copy button */
.btn-copy-response {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-hint);
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
}

.chat-bubble-ai:hover .btn-copy-response {
  opacity: 1;
  pointer-events: auto;
}

.btn-copy-response:hover {
  color: var(--color-primary);
  border-color: var(--color-border);
  background: var(--color-bg-elevated);
}

.btn-copy-response.copied {
  color: var(--color-success);
  opacity: 1;
  pointer-events: auto;
}

.btn-copy-response svg {
  flex-shrink: 0;
}

/* Typing indicator */
.chat-bubble.typing {
  padding: 1rem 1.5rem;
}

.typing-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}

.typing-dots span {
  width: 8px;
  height: 8px;
  background: var(--color-text-muted);
  border-radius: 50%;
  animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

/* Chat Input Bar */
.chat-input-bar {
  flex-shrink: 0;
  padding: 1rem 2rem 0.75rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-card);
}

.chat-input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  max-width: 900px;
  margin: 0 auto;
}

.chat-input {
  flex: 1;
  min-height: 44px;
  max-height: 150px;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  outline: none;
  resize: none;
  line-height: 1.5;
  transition: var(--transition);
}

.chat-input::placeholder {
  color: var(--color-text-hint);
}

.chat-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.1);
}

.chat-send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  border: none;
  background: var(--color-primary);
  color: white;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.chat-send-btn:hover:not(:disabled) {
  background: #2d4a7a;
}

.chat-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.chat-input-hint {
  text-align: center;
  font-size: 0.6875rem;
  color: var(--color-text-hint);
  margin-top: 0.375rem;
  padding-bottom: 0.25rem;
}

/* Nav ghost button (for Home link on chat page) */
.nav-btn-ghost {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.nav-btn-ghost:hover {
  color: var(--color-primary);
  background: rgba(59, 89, 152, 0.06);
}

/* Chat page responsive */
@media (max-width: 768px) {
  .chat-context-bar {
    padding: 0.75rem 1rem;
    gap: 0.5rem;
  }

  .context-card {
    min-width: 140px;
    padding: 0.5rem 0.75rem;
  }

  .context-details-panel {
    padding: 0.5rem 1rem;
  }

  .chat-messages {
    padding: 1rem;
  }

  .chat-input-bar {
    padding: 0.75rem 1rem 0.5rem;
  }

  .chat-bubble {
    max-width: 85%;
  }
}