/* ============================================================
   FinBot Global CSS — Emirates NBD Investor Relations Platform
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── CSS Variables ─── */
:root {
  /* Brand */
  --gold:            #C9A84C;
  --gold-light:      #E8C96A;
  --gold-dark:       #A07830;
  --gold-muted:      rgba(201, 168, 76, 0.08);
  --gold-border:     rgba(0, 102, 204, 0.22);
  --gold-glow:       rgba(201, 168, 76, 0.04);

  /* Navy */
  --navy-deep:       #003366;
  --navy-mid:        #004080;
  --enbd-blue:       #0055A5;
  --enbd-blue-hover: #004485;
  --enbd-blue-muted: rgba(0, 85, 165, 0.06);
  --enbd-blue-border: rgba(0, 85, 165, 0.18);

  /* Backgrounds */
  --bg-base:         #FFFFFF;
  --bg-mid:          #F8F9FC;
  --bg-high:         #EFF2F6;
  --bg-card:         #FFFFFF;
  --bg-card-hover:   #F1F4F9;
  --bg-input:        #FFFFFF;

  /* Text */
  --text-primary:    #0A1124;
  --text-secondary:  #2C354A;
  --text-muted:      #647087;
  --text-disabled:   #9CA6BA;

  /* Borders */
  --border-subtle:   rgba(0, 51, 102, 0.06);
  --border-mid:      rgba(0, 51, 102, 0.12);
  --border-strong:   rgba(0, 51, 102, 0.2);

  /* Semantic */
  --success:         #2ECC71;
  --success-muted:   rgba(46, 204, 113, 0.1);
  --warning:         #F39C12;
  --warning-muted:   rgba(243, 156, 18, 0.1);
  --danger:          #E74C3C;
  --danger-muted:    rgba(231, 76, 60, 0.1);
  --info:            #3498DB;
  --info-muted:      rgba(52, 152, 219, 0.1);

  /* Fonts */
  --font-body:       'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display:    'Playfair Display', Georgia, serif;
  --font-mono:       'JetBrains Mono', 'Fira Code', monospace;

  /* Radii */
  --radius-sm:       6px;
  --radius-md:       10px;
  --radius-lg:       14px;
  --radius-xl:       20px;
  --radius-full:     9999px;

  /* Shadows */
  --shadow-card:     0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
  --shadow-elevated: 0 12px 32px rgba(0, 51, 102, 0.06);
  --shadow-glow-gold:0 0 20px rgba(201,168,76,0.08);

  /* Transitions */
  --ease-fast:       150ms ease;
  --ease-base:       240ms ease;
  --ease-slow:       400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --nav-height:      60px;
  --left-panel:      280px;
  --right-panel:     480px;
}

/* ─── Reset ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(201,168,76,0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(201,168,76,0.45); }

/* ─── Selection ─── */
::selection {
  background: rgba(201,168,76,0.25);
  color: var(--text-primary);
}

/* ─── Typography ─── */
h1, h2, h3, h4 { font-family: var(--font-display); }

/* ─── Layout Shell ─── */
.app-shell {
  display: grid;
  grid-template-rows: var(--nav-height) 1fr;
  grid-template-columns: var(--left-panel) 1fr;
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.app-shell.panel-open {
  grid-template-columns: var(--left-panel) 1fr var(--right-panel);
}

.app-nav {
  grid-column: 1 / -1;
  grid-row: 1;
  z-index: 100;
  width: 100vw;
  max-width: 100vw;
  overflow: hidden;
}

.app-left {
  grid-column: 1;
  grid-row: 2;
  overflow-y: auto;
  border-right: 1px solid var(--border-subtle);
  background: var(--bg-mid);
}

.app-main {
  grid-column: 2;
  grid-row: 2;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-right {
  grid-column: 3;
  grid-row: 2;
  border-left: 1px solid var(--border-subtle);
  background: var(--bg-mid);
  overflow-y: auto;
}

/* ─── Card Component ─── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  position: relative;
  overflow: hidden;
}

.card-gold {
  border-color: var(--gold-border);
  box-shadow: var(--shadow-glow-gold);
}

.card-gold::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.6;
}

/* ─── Accordion ─── */
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.875rem 1.25rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-align: left;
  border-radius: var(--radius-md);
  transition: background var(--ease-fast), color var(--ease-fast);
  user-select: none;
}

.accordion-header:hover {
  background: var(--bg-card-hover);
  color: var(--enbd-blue);
}

.accordion-header.open {
  color: var(--enbd-blue);
}

.accordion-icon {
  transition: transform var(--ease-base);
  color: var(--text-muted);
  flex-shrink: 0;
}

.accordion-icon.open {
  transform: rotate(180deg);
  color: var(--enbd-blue);
}

.accordion-body {
  overflow: hidden;
  transition: max-height var(--ease-slow), opacity var(--ease-base);
}

/* ─── Badge ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-gold {
  background: var(--gold-muted);
  color: var(--enbd-blue);
  border: 1px solid var(--gold-border);
}

.badge-success {
  background: var(--success-muted);
  color: var(--success);
  border: 1px solid rgba(46,204,113,0.2);
}

.badge-info {
  background: var(--info-muted);
  color: var(--info);
  border: 1px solid rgba(52,152,219,0.2);
}

.badge-muted {
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--ease-base);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: #0A0F1E;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(201,168,76,0.3);
}

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

.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-open-page {
  background: var(--gold-muted);
  color: var(--enbd-blue);
  border: 1px solid var(--gold-border);
  padding: 0.3rem 0.85rem;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

.btn-open-page:hover {
  background: rgba(201,168,76,0.2);
  box-shadow: 0 0 12px rgba(201,168,76,0.2);
  transform: translateY(-1px);
}

/* ─── KPI Table ─── */
.kpi-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.8125rem;
}

.kpi-table thead th {
  text-align: left;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.6rem 0.875rem;
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border-mid);
}

.kpi-table thead th:first-child {
  border-radius: var(--radius-sm) 0 0 0;
}
.kpi-table thead th:last-child {
  border-radius: 0 var(--radius-sm) 0 0;
}

.kpi-table tbody tr {
  transition: background var(--ease-fast);
}

.kpi-table tbody tr:hover {
  background: var(--bg-card-hover);
}

.kpi-table tbody tr:nth-child(even) {
  background: rgba(0, 51, 102, 0.015);
}

.kpi-table tbody td {
  padding: 0.7rem 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.kpi-table tbody td:first-child {
  color: var(--text-primary);
  font-weight: 500;
}

.kpi-table .change-positive { color: var(--success); font-weight: 600; }
.kpi-table .change-negative { color: var(--danger); font-weight: 600; }
.kpi-table .change-neutral  { color: var(--text-muted); font-weight: 600; }

/* ─── Footnotes ─── */
.footnote-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footnote-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.65rem 0.875rem;
  background: var(--bg-mid);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--ease-fast), background var(--ease-fast);
}

.footnote-item:hover {
  border-color: var(--gold-border);
  background: var(--gold-glow);
}

.footnote-number {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gold-muted);
  border: 1px solid var(--gold-border);
  color: var(--enbd-blue);
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

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

.footnote-doc {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.footnote-support {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  line-height: 1.4;
}

/* ─── Unsupported / Insufficient ─── */
.state-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid;
  box-shadow: 0 4px 20px rgba(0, 51, 102, 0.04), var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: all var(--ease-base);
  width: 100%;
}

@media (min-width: 768px) {
  .state-card {
    grid-template-columns: 1.3fr 1fr;
    gap: 2rem;
  }
}

.state-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
}

.state-card-warning {
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(243,156,18,0.01) 100%);
  border-color: rgba(243, 156, 18, 0.18);
}
.state-card-warning::before {
  background: var(--warning);
}

.state-card-out-of-scope {
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(0, 85, 165, 0.01) 100%);
  border-color: var(--border-subtle);
}

.state-card-out-of-scope::before {
  background: #d95b5b;
}

.state-card-out-of-scope .state-card-icon-wrapper {
  background: rgba(217, 91, 91, 0.12);
  color: #c84949;
}

.badge-out-of-scope {
  background: rgba(217, 91, 91, 0.12);
  color: #b43d3d;
  border: 1px solid rgba(217, 91, 91, 0.24);
}

.state-card-info {
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(0, 85, 165, 0.01) 100%);
  border-color: var(--enbd-blue-border);
}
.state-card-info::before {
  background: var(--enbd-blue);
}

.state-card-main {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.state-card-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-left: 0;
  border-left: none;
  width: 100%;
}

@media (min-width: 768px) {
  .state-card-sidebar {
    padding-left: 1.5rem;
    border-left: 1px solid var(--border-subtle);
  }
}

.state-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.state-card-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.state-card-warning .state-card-icon-wrapper {
  background: var(--warning-muted);
  color: var(--warning);
}

.state-card-info .state-card-icon-wrapper {
  background: var(--enbd-blue-muted);
  color: var(--enbd-blue);
}

.state-card-title {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.state-card-desc {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.state-query-quote {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  background: var(--bg-mid);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  line-height: 1.5;
  position: relative;
  word-break: break-word;
}

.state-card-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

@media (min-width: 480px) {
  .state-card-features-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.state-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.75rem;
  background: var(--bg-mid);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.state-feature-icon {
  font-size: 1rem;
  line-height: 1;
  margin-top: 0.1rem;
}

.state-feature-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.state-feature-desc {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.state-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.state-examples-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.state-example-btn {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-md);
  padding: 0.625rem 0.875rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--ease-fast);
  line-height: 1.4;
}

.state-example-btn:hover {
  background: var(--enbd-blue-muted);
  border-color: var(--enbd-blue-border);
  color: var(--enbd-blue);
  transform: translateX(2px);
}

/* ─── Chat Input ─── */
.chat-input-area {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-mid);
  padding: 1rem 1.25rem;
}

.chat-input-wrapper {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
  min-width: 0;
  background: var(--bg-input);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1rem;
  transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
}

.chat-input-wrapper:focus-within {
  border-color: var(--gold-border);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.07), var(--shadow-glow-gold);
}

.chat-textarea {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.55;
  resize: none;
  min-height: 24px;
  max-height: 140px;
  overflow-y: auto;
}

.chat-textarea::placeholder {
  color: var(--text-disabled);
}

.chat-submit-btn {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--enbd-blue);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transition: all var(--ease-fast);
}

.chat-submit-btn:hover {
  background: #004485;
  color: #FFFFFF;
  transform: scale(1.05);
  box-shadow: 0 0 14px rgba(0,85,165,0.35);
}

.chat-input-hints {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.45rem;
  padding-inline: 0.25rem;
  gap: 0.75rem;
}

.chat-submit-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ─── Response Section Labels ─── */
.section-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--enbd-blue);
  margin-bottom: 0.75rem;
}

.section-label::before {
  content: '';
  display: block;
  width: 3px;
  height: 12px;
  background: var(--enbd-blue);
  border-radius: 2px;
}

/* ─── Executive Summary Text ─── */
.exec-summary-text {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-secondary);
  font-weight: 400;
}

.exec-summary-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ─── Document Panel ─── */
.doc-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--ease-fast);
  border: 1px solid transparent;
}

.doc-item:hover {
  background: var(--bg-card);
  border-color: var(--border-subtle);
}

.doc-item.active {
  background: var(--gold-muted);
  border-color: var(--gold-border);
}

.doc-item-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--gold-muted);
  border: 1px solid var(--gold-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.doc-item-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.2rem;
}

.doc-item-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ─── Top Nav ─── */
.top-nav {
  display: grid;
  grid-template-columns: minmax(145px, auto) minmax(0, 1fr) auto;
  align-items: center;
  column-gap: clamp(0.75rem, 2vw, 2rem);
  padding: 0 1.25rem;
  height: var(--nav-height);
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.top-nav::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-border), transparent);
  opacity: 0.7;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  justify-self: start;
  min-width: 0;
  position: relative;
  z-index: 2;
}

.nav-center-title {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--nav-main-left, 0px);
  right: var(--nav-main-right, 0px);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 0 clamp(1rem, 5vw, 5rem);
  text-align: center;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
  transition: left var(--ease-base), right var(--ease-base);
}

.nav-center-title-text {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  min-width: min-content;
  max-width: 100%;
  overflow: hidden;
  color: var(--enbd-blue);
  font-size: clamp(0.82rem, 1.35vw, 1.28rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.08;
}

.nav-title-split {
  display: inline-block;
  width: 0.35em;
  height: 1em;
  flex: 0 0 auto;
}

.nav-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #003366 0%, #004080 100%);
  border: 1px solid var(--gold-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--enbd-blue);
  letter-spacing: -0.02em;
  font-family: var(--font-mono);
}

.nav-title {
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.1vw, 1.1rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-self: end;
  min-width: 0;
  z-index: 2;
}

.nav-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--enbd-blue-muted);
  border: 1px solid var(--enbd-blue-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--enbd-blue);
  cursor: pointer;
}

@media (max-width: 1100px) {
  .top-nav {
    grid-template-columns: minmax(125px, auto) minmax(0, 1fr) auto;
    column-gap: 0.75rem;
    padding: 0 0.875rem;
  }

  .nav-center-title-text {
    font-size: clamp(0.78rem, 1.45vw, 0.98rem);
  }

  .nav-actions {
    gap: 0.45rem;
  }

  .nav-actions .btn {
    width: 36px;
    height: 34px;
    padding: 0 !important;
    justify-content: center;
    font-size: 0 !important;
  }

  .nav-actions .btn svg {
    width: 15px;
    height: 15px;
  }
}

@media (max-width: 820px) {
  .top-nav {
    grid-template-columns: minmax(115px, auto) minmax(0, 1fr) auto;
  }

  .nav-center-title {
    left: 0;
    right: 0;
    padding: 0 4.5rem;
  }

  .nav-brand {
    gap: 0.45rem !important;
  }

  .nav-brand img {
    height: 20px !important;
  }

  .nav-title {
    font-size: 0.78rem;
  }

  .nav-center-title-text {
    font-size: 0.72rem;
  }
}

@media (max-width: 640px) {
  .top-nav {
    grid-template-columns: auto minmax(0, 1fr) auto;
    column-gap: 0.5rem;
    padding: 0 0.625rem;
  }

  .nav-title {
    display: none;
  }

  .nav-center-title {
    padding: 0 3.25rem;
  }

  .nav-center-title-text {
    font-size: 0.68rem;
    line-height: 1.05;
  }

  .messages-scroll {
    padding: 1rem;
  }

  .welcome-screen {
    padding: calc(var(--nav-height) * 0.4) 1.25rem 1.25rem;
    gap: 1.1rem;
  }

  .welcome-subtitle {
    max-width: min(100%, 330px) !important;
    overflow-wrap: anywhere;
  }

  .chat-input-area {
    padding: 0.75rem 0.875rem;
  }

  .chat-input-wrapper {
    gap: 0.5rem;
    padding: 0.65rem 0.75rem;
  }

  .chat-textarea {
    font-size: 0.84rem;
  }

  .chat-submit-btn {
    width: 34px;
    height: 34px;
  }

  .chat-input-hints {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0.2rem 0.75rem;
  }

  .chat-input-hints span {
    line-height: 1.35;
  }
}

@media (max-width: 460px) {
  .top-nav {
    column-gap: 0.35rem;
    padding: 0 0.5rem;
  }

  .nav-actions {
    gap: 0.3rem;
  }

  .nav-center-title {
    padding: 0 2.75rem;
  }

  .nav-actions .btn {
    width: 32px;
    height: 32px;
  }

  .nav-avatar {
    display: none;
  }

  #toggle-doc-panel-btn {
    display: none;
  }

  .chat-input-wrapper > div:first-child {
    display: none !important;
  }

  .chat-input-hints {
    display: none;
  }

  .nav-center-title-text {
    font-size: 0.56rem;
  }

  .nav-title-split {
    width: 0.2em;
  }
}

@media (max-width: 380px) {
  .nav-center-title-text {
    font-size: 0.54rem;
  }
}

/* ─── Loading Shimmer ─── */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.loading-shimmer {
  background: linear-gradient(
    90deg,
    var(--bg-card) 0%,
    rgba(201,168,76,0.05) 50%,
    var(--bg-card) 100%
  );
  background-size: 200% auto;
  animation: shimmer 2s linear infinite;
  border-radius: var(--radius-sm);
}

/* ─── Pulse dot ─── */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.75); }
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  animation: pulse-dot 1.4s ease infinite;
}

/* ─── Thinking indicator ─── */
.thinking-dots span {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
  margin: 0 2px;
  animation: pulse-dot 1.4s ease infinite;
}
.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

/* ─── Fade-in animation ─── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.35s ease both;
}

/* ─── Driver items ─── */
.driver-item {
  display: flex;
  gap: 1rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

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

.driver-number {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gold-muted);
  border: 1px solid var(--gold-border);
  color: var(--enbd-blue);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.driver-title {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.driver-detail {
  font-size: 0.815rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ─── Visual Evidence ─── */
.visual-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.visual-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  transition: border-color var(--ease-fast);
}

.visual-item:hover { border-color: var(--gold-border); }

.visual-placeholder {
  height: 160px;
  background: linear-gradient(135deg, rgba(0,51,102,0.06), rgba(201,168,76,0.04));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ─── Sidebar section title ─── */
.panel-section-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 1rem 1rem 0.4rem;
}

/* ─── Welcome Screen ─── */
.welcome-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  gap: 1.5rem;
}

.welcome-logo {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  background: linear-gradient(135deg, #003366 0%, #004080 60%, #003366 100%);
  border: 1px solid var(--gold-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--enbd-blue);
  font-family: var(--font-mono);
  box-shadow: var(--shadow-glow-gold), var(--shadow-elevated);
  position: relative;
}

.welcome-logo::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 19px;
  background: linear-gradient(135deg, var(--gold-border), transparent, var(--gold-border));
  z-index: -1;
}

.welcome-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.welcome-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 420px;
  line-height: 1.65;
}

.sample-questions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  max-width: 520px;
}

.sample-q {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.65rem 1rem;
  font-size: 0.835rem;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: all var(--ease-fast);
  font-family: var(--font-body);
}

.sample-q:hover {
  border-color: var(--gold-border);
  color: var(--text-primary);
  background: var(--gold-glow);
}

/* ─── Scrollable messages ─── */
.messages-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.messages-inner {
  margin: 0 auto;
}

/* ─── Question bubble ─── */
.question-bubble {
  align-self: flex-end;
  max-width: 70%;
  background: var(--navy-deep);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-lg) var(--radius-lg) 4px var(--radius-lg);
  padding: 0.875rem 1.125rem;
  font-size: 0.9rem;
  color: #FFFFFF;
  line-height: 1.55;
}

/* ─── Response card ─── */
.response-card {
  background: var(--bg-card);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-glow-gold);
  animation: fadeInUp 0.3s ease both;
}

.response-card::before {
  content: '';
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.5;
}

/* ─── Divider ─── */
.divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 0.75rem 0;
}

/* ─── PDF viewer panel ─── */
.pdf-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-high);
}

.pdf-panel-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pdf-page-badge {
  background: var(--enbd-blue-muted);
  border: 1px solid var(--enbd-blue-border);
  color: var(--enbd-blue);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 600;
}

.pdf-screen-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  background: rgba(8, 16, 28, 0.92);
  backdrop-filter: blur(8px);
}

.pdf-screen-modal-header {
  min-height: 68px;
  padding: 0.55rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 51, 102, 0.82);
  flex-wrap: wrap;
}

.pdf-screen-modal-title {
  font-size: 0.86rem;
  font-weight: 700;
  max-width: 58vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pdf-screen-modal-meta {
  margin-top: 2px;
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.72);
}

.pdf-screen-modal-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pdf-screen-zoom-value {
  min-width: 42px;
  text-align: center;
  font: 700 0.72rem var(--font-mono);
  color: rgba(255, 255, 255, 0.82);
}

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

.pdf-screen-page-nav {
  padding: 0.25rem 0.4rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
}

.pdf-screen-page-nav input {
  width: 42px;
  height: 28px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font: 700 0.75rem var(--font-mono);
}

.pdf-screen-page-nav span {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.72);
}

.pdf-screen-modal-actions button,
.pdf-screen-page-nav button {
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  padding: 0.35rem 0.65rem;
  font: 700 0.72rem var(--font-body);
  cursor: pointer;
}

.pdf-screen-modal-actions button:hover,
.pdf-screen-page-nav button:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.18);
}

.pdf-screen-page-nav button:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.pdf-screen-modal-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.pdf-screen-modal-page {
  position: relative;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.42);
  touch-action: none;
  transition: width var(--ease-fast);
}

.pdf-screen-modal-page img {
  width: 100%;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

@media (max-width: 900px) {
  .pdf-screen-modal-header {
    align-items: stretch;
  }

  .pdf-screen-modal-title {
    max-width: 88vw;
  }

  .pdf-screen-page-nav,
  .pdf-screen-modal-actions {
    width: 100%;
    justify-content: flex-start;
  }
}

/* ─── Utilities ─── */
.text-gold   { color: var(--enbd-blue); }
.text-muted  { color: var(--text-muted); }
.text-sm     { font-size: 0.8125rem; }
.text-xs     { font-size: 0.72rem; }
.font-mono   { font-family: var(--font-mono); }
.font-display{ font-family: var(--font-display); }
.fw-600      { font-weight: 600; }
.mt-1        { margin-top: 0.25rem; }
.mt-2        { margin-top: 0.5rem; }
.mt-3        { margin-top: 0.75rem; }
.mt-4        { margin-top: 1rem; }
.gap-1       { gap: 0.25rem; }
.gap-2       { gap: 0.5rem; }
.gap-3       { gap: 0.75rem; }
.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-center{ align-items: center; }
.w-full      { width: 100%; }

/* ─── Spin animation ─── */
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ─── Responsive tweaks ─── */
@media (max-width: 1024px) {
  :root {
    --left-panel: 240px;
    --right-panel: 340px;
  }
}