/* ───────────────────────────────────────────────────────────
 * Public Sans (self-hosted, variable), alinhado ao manual GF.
 * Onda 4 dropa Fraunces (register product, one family).
 * ─────────────────────────────────────────────────────────── */
@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/assets/fonts/public-sans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191,
                 U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/assets/fonts/public-sans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF,
                 U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* AvenirNextCyr: mesma fonte self-hosted que o site gerandofalcoes.com usa,
 * para garantir consistência visual da marca. 3 pesos (Regular/Demi/Bold). */
@font-face {
  font-family: 'AvenirNextCyr';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/assets/fonts/AvenirNextCyr-Regular.woff2') format('woff2'),
       url('/assets/fonts/AvenirNextCyr-Regular.woff') format('woff');
}
@font-face {
  font-family: 'AvenirNextCyr';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/assets/fonts/AvenirNextCyr-Demi.woff2') format('woff2'),
       url('/assets/fonts/AvenirNextCyr-Demi.woff') format('woff');
}
@font-face {
  font-family: 'AvenirNextCyr';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/assets/fonts/AvenirNextCyr-Bold.woff2') format('woff2'),
       url('/assets/fonts/AvenirNextCyr-Bold.woff') format('woff');
}

/* Manrope: fallback cross-platform geométrico para o wordmark. */
@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url('/assets/fonts/manrope-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                 U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                 U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url('/assets/fonts/manrope-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
                 U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
                 U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Onda 4: tokens em OKLCH alinhados com manual GF e skill igf-frontend.
 * Estratégia de cor: primária teal-blue e superfícies frias para coerência. */
:root {
  /* Superfícies — papel frio, hue 200 */
  --bg:              oklch(0.985 0.006 200);
  --surface:         oklch(0.995 0.004 200);
  --surface-welcome: oklch(0.92  0.018 200);
  --text:            oklch(0.22  0.015 215);
  --muted:           oklch(0.50  0.018 210);

  /* Primária — teal-blue, ≤10% da tela */
  --primary:        oklch(0.55 0.14 210);
  --primary-strong: oklch(0.44 0.12 212);
  --primary-soft:   oklch(0.94 0.035 208);
  --primary-btn:    oklch(0.52 0.13 210);

  /* Accent — derivado do primary, sem competir */
  --accent:        oklch(0.42 0.08 210);
  --accent-strong: oklch(0.34 0.07 212);
  --accent-soft:   oklch(0.92 0.025 205);

  /* Erro / Danger — família terracota completa (botão de erro com peso de marca) */
  --danger:        oklch(0.54 0.16 38);
  --danger-strong: oklch(0.46 0.13 35);
  --danger-soft:   oklch(0.94 0.045 42);
  --danger-border: oklch(0.78 0.08 38);
  --error-bg:      color-mix(in srgb, var(--danger-soft) 78%, #ffffff);
  --error-border:  var(--danger-border);
  --focus:  oklch(0.62 0.16 215);

  /* Sombras frias */
  --shadow-sm: 0 1px 3px  oklch(0.22 0.015 215 / 0.08);
  --shadow-md: 0 4px 14px oklch(0.22 0.015 215 / 0.10);
  --shadow-lg: 0 16px 40px oklch(0.22 0.015 215 / 0.14);

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 18px;

  /* Tipografia: Avenir Next como base da UI com fallback robusto cross-platform.
   * A versão self-hosted AvenirNextCyr garante consistência com a identidade GF. */
  --font-body:  'AvenirNextCyr', 'Avenir Next', 'Avenir', 'Public Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-brand: 'AvenirNextCyr', 'Avenir Next', 'Avenir', 'Manrope', 'Helvetica Neue', 'Public Sans', system-ui, sans-serif;

  /* Bordas frias */
  --border-soft:   oklch(0.92 0.012 205);
  --border:        oklch(0.85 0.018 208);
  --border-strong: oklch(0.70 0.022 210);
  --scrollbar-track: oklch(0.97 0.006 205);
  --scrollbar-thumb: oklch(0.82 0.020 210);

  /* Mensagens do usuário — escurecidas p/ contraste contra --bg */
  --user-msg-bg:     oklch(0.86 0.055 208);
  --user-msg-border: oklch(0.74 0.050 210);

  /* Type scale FIXA ratio 1.2 (rem, sem clamp em headings) */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-md:   1.125rem;
  --text-lg:   1.375rem;
  --text-xl:   1.75rem;
  --text-2xl:  2.125rem;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-bold:   700;

  /* Spacing sistemático (gap-first) */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;

  /* Z-index semântico */
  --z-dropdown:  100;
  --z-sticky:    200;
  --z-backdrop: 1000;
  --z-modal:    1100;
  --z-toast:    1200;

  /* Gesto assinatura — hover/focus */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --lift-sm: translateY(-1px);
  --lift-md: translateY(-2px);
  --ring-primary: 0 0 0 3px oklch(0.55 0.14 210 / 0.22);
  --z-tooltip:  1300;

  /* Tokens de estado */
  --success:    oklch(0.58 0.14 155);
  --success-bg: oklch(0.96 0.03 150);
  --warning:    oklch(0.68 0.14 60);
  --warning-bg: oklch(0.96 0.04 70);
  --info:       oklch(0.58 0.13 235);
  --info-bg:    oklch(0.96 0.03 230);
}

/* Dark mode (OS) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:              oklch(0.17 0.012 215);
    --surface:         oklch(0.22 0.014 212);
    --surface-welcome: oklch(0.30 0.028 208);
    --text:            oklch(0.94 0.012 205);
    --muted:           oklch(0.70 0.018 208);
    --primary:        oklch(0.72 0.12 210);
    --primary-strong: oklch(0.82 0.11 212);
    --primary-soft:   oklch(0.30 0.06 210);
    --primary-btn:    oklch(0.64 0.13 210);
    --accent:         oklch(0.66 0.09 210);
    --accent-strong:  oklch(0.56 0.08 212);
    --accent-soft:    oklch(0.28 0.05 208);
    --shadow-sm: 0 1px 3px  oklch(0.22 0.015 215 / 0.08);
    --shadow-md: 0 4px 14px oklch(0.22 0.015 215 / 0.10);
    --shadow-lg: 0 16px 40px oklch(0.22 0.015 215 / 0.14);
    --danger:        oklch(0.70 0.14 40);
    --danger-strong: oklch(0.80 0.13 40);
    --danger-soft:   oklch(0.32 0.08 38);
    --danger-border: oklch(0.48 0.12 38);
    --error-bg:        oklch(0.28 0.08 30);
    --error-border:    oklch(0.48 0.12 30);
    --user-msg-bg:     oklch(0.36 0.07 210);
    --user-msg-border: oklch(0.50 0.09 210);
    --border-soft:   oklch(0.30 0.015 210);
    --border:        oklch(0.40 0.020 210);
    --border-strong: oklch(0.55 0.028 210);
    --scrollbar-track: oklch(0.22 0.014 212);
    --scrollbar-thumb: oklch(0.52 0.050 210);
  }
}

:root[data-theme="light"] {
  --scrollbar-track: oklch(0.97 0.006 205);
  --scrollbar-thumb: oklch(0.82 0.020 210);
}

html, body, .chat-history, .cards-grid, .cards-section, .timeline-section, .consent-modal__card, .action-confirm-modal__card, .prefs-modal__card, .help-modal__card, .session-expired-modal__card {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
.chat-history::-webkit-scrollbar,
.cards-grid::-webkit-scrollbar,
.cards-section::-webkit-scrollbar,
.timeline-section::-webkit-scrollbar,
.consent-modal__card::-webkit-scrollbar,
.action-confirm-modal__card::-webkit-scrollbar,
.prefs-modal__card::-webkit-scrollbar,
.help-modal__card::-webkit-scrollbar,
.session-expired-modal__card::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track,
.chat-history::-webkit-scrollbar-track,
.cards-grid::-webkit-scrollbar-track,
.cards-section::-webkit-scrollbar-track,
.timeline-section::-webkit-scrollbar-track,
.consent-modal__card::-webkit-scrollbar-track,
.action-confirm-modal__card::-webkit-scrollbar-track,
.prefs-modal__card::-webkit-scrollbar-track,
.help-modal__card::-webkit-scrollbar-track,
.session-expired-modal__card::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb,
.chat-history::-webkit-scrollbar-thumb,
.cards-grid::-webkit-scrollbar-thumb,
.cards-section::-webkit-scrollbar-thumb,
.timeline-section::-webkit-scrollbar-thumb,
.consent-modal__card::-webkit-scrollbar-thumb,
.action-confirm-modal__card::-webkit-scrollbar-thumb,
.prefs-modal__card::-webkit-scrollbar-thumb,
.help-modal__card::-webkit-scrollbar-thumb,
.session-expired-modal__card::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border: 3px solid var(--scrollbar-track);
  border-radius: 999px;
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover,
.chat-history::-webkit-scrollbar-thumb:hover,
.cards-grid::-webkit-scrollbar-thumb:hover,
.cards-section::-webkit-scrollbar-thumb:hover,
.timeline-section::-webkit-scrollbar-thumb:hover,
.consent-modal__card::-webkit-scrollbar-thumb:hover,
.action-confirm-modal__card::-webkit-scrollbar-thumb:hover,
.prefs-modal__card::-webkit-scrollbar-thumb:hover,
.help-modal__card::-webkit-scrollbar-thumb:hover,
.session-expired-modal__card::-webkit-scrollbar-thumb:hover {
  background: var(--primary-strong);
}

/* Scrollbar do painel lateral: track transparente (herda cor do painel), thumb em destaque */
.welcome-panel .cards-section,
.welcome-panel .timeline-section {
  scrollbar-color: var(--primary) transparent;
}

.welcome-panel .cards-section::-webkit-scrollbar-track,
.welcome-panel .timeline-section::-webkit-scrollbar-track {
  background: transparent;
}

.welcome-panel .cards-section::-webkit-scrollbar-thumb,
.welcome-panel .timeline-section::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-color: transparent;
}

.welcome-panel .cards-section::-webkit-scrollbar-thumb:hover,
.welcome-panel .timeline-section::-webkit-scrollbar-thumb:hover {
  background: var(--primary-strong);
}

.welcome-panel .cards-section::-webkit-scrollbar-button,
.welcome-panel .timeline-section::-webkit-scrollbar-button {
  background: transparent;
}

* {
  box-sizing: border-box;
}

/* Layout no-scroll: viewport fixa, scroll só interno em painéis */
html, body {
  height: 100vh;
  overflow: hidden;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-feature-settings: "ss01", "cv11";
  color: var(--text);
  background: var(--bg);
  display: grid;
  grid-template-rows: auto 1fr;
}

.hero {
  padding: var(--space-sm) var(--space-lg);
  background: var(--surface);
  border-bottom: 1px solid var(--border-soft);
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-actions-panel {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-actions-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-actions-drawer-head {
  display: none;
}

.header-menu-backdrop {
  display: none;
}

.header-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.22rem;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary-strong);
  cursor: pointer;
  flex-shrink: 0;
}

.header-menu-toggle:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.header-menu-toggle:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

.header-menu-toggle__line {
  display: block;
  width: 1rem;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 180ms var(--ease-out-quart), opacity 180ms var(--ease-out-quart);
}

.header-menu-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary-strong);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
}

.header-menu-close:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.header-menu-close:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

.menu-button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  flex: 0 0 1rem;
}

.menu-button-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.menu-button-label {
  display: inline-flex;
  align-items: center;
}

.help-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary-strong);
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}

.help-link__label {
  display: none;
}

.help-link:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.help-link:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

@media (min-width: 769px) {
  #theme-toggle,
  #prefs-menu-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--primary-strong);
    box-shadow: none;
    transform: none;
    gap: 0;
  }

  #theme-toggle:hover,
  #prefs-menu-button:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
    box-shadow: none;
    transform: none;
  }

  #theme-toggle .menu-button-label,
  #prefs-menu-button .menu-button-label,
  #help-toggle .help-link__label {
    display: none;
  }

  #theme-toggle .menu-button-icon,
  #prefs-menu-button .menu-button-icon {
    width: 1rem;
    height: 1rem;
    flex: 0 0 1rem;
  }

  #logout-button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  #logout-button .menu-button-icon {
    display: none;
  }

  #logout-button .menu-button-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    line-height: 1;
    text-align: center;
  }
}

.session-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.session-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  flex: 1 1 auto;
  min-width: 0;
}

#new-session-button {
  margin-left: auto;
}

.session-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary-strong);
}

.chat-shell {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--surface);
  padding: var(--space-md) var(--space-md);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: var(--space-sm);
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w, 360px) 28px 1fr;
  column-gap: 0;
  row-gap: var(--space-lg);
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  overflow: hidden;
  min-height: 0;
}

#welcome-panel { grid-column: 1; grid-row: 1; }
#panel-resizer  { grid-column: 2; grid-row: 1; }
.chat-panel     { grid-column: 3; grid-row: 1; }

.welcome-panel-toggle {
  position: fixed;
  left: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 35;
  width: 2rem;
  height: 3.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary-strong);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: left 220ms var(--ease-out-quart), transform 180ms var(--ease-out-quart), box-shadow 180ms var(--ease-out-quart), background 180ms var(--ease-out-quart), border-color 180ms var(--ease-out-quart);
}

.welcome-panel-toggle:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  box-shadow: var(--shadow-md);
}

.welcome-panel-toggle:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

.welcome-panel-toggle__icon {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
}

body.welcome-panel-collapsed .layout {
  grid-template-columns: 0 28px 1fr;
  padding-left: var(--space-lg);
}

body.welcome-panel-collapsed .welcome-panel {
  display: none;
}

.welcome-panel {
  /* Mesma cor da mensagem do usuário — coerência visual */
  position: relative;
  background: var(--user-msg-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  gap: var(--space-md);
  overflow: hidden;
  min-height: 0;
}

.welcome-panel-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
  min-width: 0;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.welcome-panel::after {
  display: none;
}

.chat-panel {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: var(--space-sm);
  overflow: visible;
  min-height: 0;
}

/* Welcome hide quando há mensagens no chat (CSS-only, sem JS) */
/* Welcome panel: sempre visível na coluna esquerda. O usuário pode
 * conversar livremente, o chat-history scrolla internamente.
 * Antes havia regra :has() que escondia welcome quando havia mensagens,
 * mas com histórico persistido em localStorage isso escondia o painel
 * (incluindo os 4 cards de sugestão) imediatamente no load. */

/* ── Panel resizer (drag para redimensionar sidebar) ────────────── */
.panel-resizer {
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: col-resize;
  position: relative;
  user-select: none;
  touch-action: none;
  z-index: 20;
}

.panel-resizer::before {
  content: '';
  position: absolute;
  inset: 0 6px;
  border-radius: 4px;
  background: transparent;
  transition: background 160ms var(--ease-out-quart);
}

.panel-resizer:hover::before,
.panel-resizer.is-dragging::before {
  background: oklch(0.72 0.12 210 / 0.12);
}

.panel-resizer::after {
  content: '';
  position: relative;
  z-index: 1;
  width: 3px;
  height: 2.5rem;
  border-radius: 99px;
  background: var(--border);
  opacity: 0;
  transition: opacity 160ms var(--ease-out-quart),
              height 160ms var(--ease-out-quart),
              background 160ms var(--ease-out-quart);
}

.panel-resizer:hover::after,
.panel-resizer.is-dragging::after {
  opacity: 1;
  height: 3.5rem;
  background: var(--primary);
}

body.welcome-panel-collapsed .panel-resizer {
  cursor: e-resize;
}

body.welcome-panel-collapsed .panel-resizer::after {
  opacity: 1;
  background: var(--border-strong);
}

body.welcome-panel-collapsed .panel-resizer:hover::after {
  background: var(--primary);
}

/* Em desktop, o botão toggle fica posicionado sobre o resizer (z-index maior).
   pointer-events: none deixa os eventos chegarem ao #panel-resizer abaixo.
   O resizer já gerencia click (toggle) e mousedown (drag). */
@media (min-width: 901px) {
  .welcome-panel-toggle {
    pointer-events: none;
  }
}

@media (max-width: 900px) {
  .panel-resizer { display: none; }
}
/* ── fim panel resizer ──────────────────────────────────────────── */

/* Mobile: 1 coluna, scroll volta no body */
@media (max-width: 900px) {
  html, body {
    height: auto;
    overflow: auto;
  }
  body {
    min-height: 100dvh;
    grid-template-rows: auto minmax(0, 1fr) auto;
  }
  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    align-content: start;
    overflow: visible;
  }
  /* Reset explicit grid-column — 3 colunas não existem em mobile */
  #welcome-panel, #panel-resizer, .chat-panel {
    grid-column: auto;
    grid-row: auto;
  }
  .welcome-panel {
    align-self: start;
    align-items: stretch;
    justify-content: flex-start;
    text-align: left;
    overflow-y: visible;
    padding: var(--space-md);
  }
  .cards-section,
  .cards-grid,
  .use-case-card {
    width: 100%;
    min-width: 0;
  }
  .cards-grid {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto auto auto;
  }
  .card-label,
  .card-hint {
    overflow-wrap: anywhere;
  }
  .chat-panel {
    overflow: visible;
  }
  .chat-history {
    max-height: none;
  }
  .brand-title {
    flex-direction: row;
    align-items: center;
    gap: 0.55rem;
    text-align: left;
  }

  .welcome-panel-toggle {
    display: none;
  }
}

h1 {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--text);
}

.brand-title {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.7rem;
  line-height: 1;
  text-align: left;
}

.brand-logo {
  display: block;
  height: 28px;
  width: auto;
  flex-shrink: 0;
  align-self: center;
}

:root[data-theme="dark"] .brand-logo {
  filter: brightness(0) invert(1);
}

.brand-wordmark {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-brand);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 0.95;
  color: var(--primary-strong);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .brand-logo {
    filter: brightness(0) saturate(100%) invert(21%) sepia(24%) saturate(1128%) hue-rotate(171deg) brightness(90%) contrast(93%);
  }
}

:root[data-theme="light"] .brand-logo {
  filter: brightness(0) saturate(100%) invert(21%) sepia(24%) saturate(1128%) hue-rotate(171deg) brightness(90%) contrast(93%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .brand-wordmark {
    color: #ffffff;
  }
}

:root[data-theme="dark"] .brand-wordmark {
  color: #ffffff;
}

#subtitle {
  margin: 0.35rem 0 0;
  color: var(--primary-btn);
  font-weight: 500;
}

.layout {
   padding: 1rem;
}

.intro-panel {
  max-width: 960px;
  margin: 0 auto 1rem;
  padding: 0 1rem;
}

.intro-kicker {
  margin: 0 0 var(--space-xs);
  color: var(--primary-strong);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.68rem;
  font-weight: 700;
}

.welcome-tagline {
  margin: auto 0 0;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: lowercase;
  color: var(--primary-strong);
  opacity: 0.65;
}

.page-tagline {
  width: 100%;
  text-align: center;
  padding: 0rem 1rem 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: lowercase;
  color: var(--primary-strong);
  opacity: 0.55;
}

.intro-title {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  line-height: 1.15;
}

.intro-text {
  margin: 0;
  color: var(--text);
  font-size: var(--text-sm);
  line-height: 1.55;
  max-width: 38ch;
  margin-inline: auto;
}

/* .chat-panel é o painel direito, transparente (sem card aninhado) */
.chat-panel {
  background: transparent;
  border: 0;
  padding: 0 0 0 0;
}

.chat-history {
  position: relative;
  overflow-y: auto;
  height: 100%;
  min-height: 0;
  padding: var(--space-lg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.chat-history--empty::before {
  display: none;
}

.chat-history.chat-history--empty {
  overflow-y: hidden;
  padding: var(--space-md);
  text-align: left;
}

.chat-history.chat-history--empty .empty-state {
  width: 100%;
  max-width: 48ch;
  min-height: 100%;
  margin: 0;
  padding: 0;
  gap: 0.45rem;
  justify-content: center;
  align-items: flex-start;
  text-align: left;
}

.chat-history.chat-history--empty .empty-eyebrow,
.chat-history.chat-history--empty .empty-title,
.chat-history.chat-history--empty .empty-copy,
.chat-history.chat-history--empty .empty-points {
  text-align: left;
}

.message {
  max-width: 85%;
  margin: var(--space-sm) 0;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  box-shadow: var(--shadow-sm);
}

.message.user {
  margin-left: auto;
  background: var(--user-msg-bg);
  border: 1px solid var(--user-msg-border);
}

.message.assistant {
  margin-right: auto;
  background: var(--surface);
  border: 1px solid var(--primary-strong);
  box-shadow: var(--shadow-sm);
}

/* Tema claro: welcome panel e mensagens do usuário em primary-strong com alto contraste. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .welcome-panel {
    background: var(--primary-strong);
    border: 1px solid color-mix(in srgb, var(--primary-soft) 72%, white);
    --scrollbar-track: oklch(0.995 0.004 200);
    --scrollbar-thumb: oklch(0.44 0.12 212);
  }

  :root:not([data-theme="dark"]) .welcome-panel .intro-title,
  :root:not([data-theme="dark"]) .welcome-panel .intro-text,
  :root:not([data-theme="dark"]) .welcome-panel .intro-kicker,
  :root:not([data-theme="dark"]) .welcome-panel .welcome-tagline,
  :root:not([data-theme="dark"]) .welcome-panel .cards-hint {
    color: oklch(0.97 0.01 220);
  }

  :root:not([data-theme="dark"]) .welcome-panel .use-case-card {
    border-color: color-mix(in srgb, white 65%, var(--primary-soft));
  }

  :root:not([data-theme="dark"]) .welcome-panel .use-case-card:hover,
  :root:not([data-theme="dark"]) .welcome-panel .use-case-card:focus-visible {
    border-color: oklch(0.72 0.12 210);
    box-shadow: 0 4px 14px oklch(1 0 0 / 0.45);
  }

  :root:not([data-theme="dark"]) .welcome-panel .card-categoria {
    color: var(--primary-strong);
  }

  :root:not([data-theme="dark"]) .welcome-panel .theme-group__title {
    color: oklch(0.97 0.01 220);
  }

  :root:not([data-theme="dark"]) .message.user {
    background: var(--primary-strong);
    border: 1px solid color-mix(in srgb, white 64%, var(--primary-soft));
    color: oklch(0.97 0.01 220);
  }

  :root:not([data-theme="dark"]) .message.user .message-meta {
    color: color-mix(in srgb, white 78%, var(--primary-soft));
  }

  :root:not([data-theme="dark"]) .message.user .message-role,
  :root:not([data-theme="dark"]) .message.user .message-body,
  :root:not([data-theme="dark"]) .message.user a {
    color: oklch(0.98 0.008 220);
  }
}

:root[data-theme="light"] .welcome-panel {
  background: var(--primary-strong);
  border: 1px solid color-mix(in srgb, var(--primary-soft) 72%, white);
  --scrollbar-track: oklch(0.995 0.004 200);
  --scrollbar-thumb: oklch(0.44 0.12 212);
}

:root[data-theme="light"] .welcome-panel .intro-title,
:root[data-theme="light"] .welcome-panel .intro-text,
:root[data-theme="light"] .welcome-panel .intro-kicker,
:root[data-theme="light"] .welcome-panel .welcome-tagline,
:root[data-theme="light"] .welcome-panel .cards-hint {
  color: oklch(0.97 0.01 220);
}

:root[data-theme="light"] .welcome-panel .use-case-card {
  border-color: color-mix(in srgb, white 65%, var(--primary-soft));
}

:root[data-theme="light"] .welcome-panel .use-case-card:hover,
:root[data-theme="light"] .welcome-panel .use-case-card:focus-visible {
  border-color: oklch(0.72 0.12 210);
  box-shadow: 0 4px 14px oklch(1 0 0 / 0.45);
}

:root[data-theme="light"] .welcome-panel .card-categoria {
  color: var(--primary-strong);
}

:root[data-theme="light"] .welcome-panel .theme-group__title {
  color: oklch(0.97 0.01 220);
}

:root[data-theme="light"] .message.user {
  background: var(--primary-strong);
  border: 1px solid color-mix(in srgb, white 64%, var(--primary-soft));
  color: oklch(0.97 0.01 220);
}

:root[data-theme="light"] .message.user .message-meta {
  color: color-mix(in srgb, white 78%, var(--primary-soft));
}

:root[data-theme="light"] .message.user .message-role,
:root[data-theme="light"] .message.user .message-body,
:root[data-theme="light"] .message.user a {
  color: oklch(0.98 0.008 220);
}

/* Erro em tema claro: precisa prevalecer sobre o estilo base de .message.user (primary). */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .message.user.is-failed {
    background: var(--error-bg, #fff1ef);
    border: 1px solid var(--error-border, #f4b4ac);
    color: #3a1410;
  }

  :root:not([data-theme="dark"]) .message.user.is-failed .message-meta,
  :root:not([data-theme="dark"]) .message.user.is-failed .message-role,
  :root:not([data-theme="dark"]) .message.user.is-failed .message-body,
  :root:not([data-theme="dark"]) .message.user.is-failed a {
    color: inherit;
  }
}

:root[data-theme="light"] .message.user.is-failed {
  background: var(--error-bg, #fff1ef);
  border: 1px solid var(--error-border, #f4b4ac);
  color: #3a1410;
}

:root[data-theme="light"] .message.user.is-failed .message-meta,
:root[data-theme="light"] .message.user.is-failed .message-role,
:root[data-theme="light"] .message.user.is-failed .message-body,
:root[data-theme="light"] .message.user.is-failed a {
  color: inherit;
}

.message-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.77rem;
}

.message-role {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--text);
}

.message-role__avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message-role__avatar-img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.message-body {
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.message a {
  overflow-wrap: anywhere;
  word-break: break-all;
}

.message-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.55rem;
}

.message-tag {
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  background: #edf7f6;
  color: var(--primary-strong);
  font-size: 0.74rem;
  font-weight: 700;
}

.empty-state {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  text-align: left;
}

.empty-eyebrow {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary-strong);
}

.empty-title {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.15;
}

.empty-copy {
  margin: 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.empty-points {
  margin: 0;
  padding-left: 0.95rem;
  color: var(--text);
  font-size: 0.82rem;
}

.empty-points li {
  margin: 0.2rem 0;
  line-height: 1.35;
}

.error-banner {
  margin-top: 0;
  padding: 0.8rem;
  background: var(--error-bg, #fff1ef);
  border: 1px solid var(--error-border, #f4b4ac);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.error-banner #error-text {
  margin: 0;
  white-space: pre-line;
  color: var(--danger-strong);
}

.error-banner .secondary-button {
  color: var(--danger-strong);
  border: 1px solid var(--danger-border);
  background: var(--danger-soft);
}

.error-banner .secondary-button:hover {
  background: var(--danger);
  border-color: var(--danger-strong);
  color: var(--surface);
  box-shadow: var(--shadow-sm);
}

.error-banner .secondary-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 35%, transparent), var(--shadow-sm);
}

.chat-form {
  margin-top: 0;
}

.composer-shell {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--surface);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 180ms var(--ease-out-quart),
              box-shadow 240ms var(--ease-out-quart);
}

.composer-shell:hover,
.composer-shell:active {
  border-color: var(--border-soft);
  box-shadow: 0 0 0 1px oklch(0.72 0.12 210 / 0.70), 0 4px 14px oklch(0.72 0.12 210 / 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .composer-shell:hover,
  :root:not([data-theme="light"]) .composer-shell:active {
    border-color: oklch(0.72 0.12 210);
    box-shadow: 0 0 0 1px oklch(0.72 0.12 210 / 0.70), 0 4px 14px oklch(0.72 0.12 210 / 0.35);
  }
}

:root[data-theme="dark"] .composer-shell:hover,
:root[data-theme="dark"] .composer-shell:active {
  border-color: oklch(0.72 0.12 210);
  box-shadow: 0 0 0 1px oklch(0.72 0.12 210 / 0.70), 0 4px 14px oklch(0.72 0.12 210 / 0.35);
}

.composer-shell:focus-within {
  border-color: var(--primary);
  box-shadow: var(--ring-primary), var(--shadow-md);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .composer-shell:focus-within {
    box-shadow: 0 4px 14px oklch(0.72 0.12 210 / 0.35);
  }
}

:root[data-theme="light"] .composer-shell:focus-within {
  box-shadow: 0 4px 14px oklch(0.72 0.12 210 / 0.35);
}

.composer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}

.composer-head-left {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.composer-head-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: calc(1.5em + 1.5rem);
}

.composer-title {
  font-size: var(--text-base);
  font-weight: 600;
}

.composer-helper {
  color: var(--muted);
  font-size: var(--text-xs);
}

.composer-starters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: 0.6rem;
  position: relative;
}

.composer-starters.hidden {
  display: none;
}

.starter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  background: color-mix(in srgb, var(--surface) 88%, var(--primary-soft) 12%);
  color: var(--text);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--primary) 10%, transparent);
  transition: transform 180ms var(--ease-out-quart),
              border-color 180ms var(--ease-out-quart),
              box-shadow 180ms var(--ease-out-quart),
              background 180ms var(--ease-out-quart);
}

.starter-chip::before {
  content: '+';
  color: var(--primary-strong);
  font-weight: 700;
  line-height: 1;
}

/* Botão toggle de sugestões no composer — visível apenas no mobile */
.starters-toggle-btn {
  display: none;
}

/* Linha que posiciona o toggle alinhado à direita acima do input */
.composer-starters-row {
  display: none;
}

/* Botão toggle de sugestões legado (removido do DOM, regra mantida por compatibilidade) */
.starter-toggle-btn {
  display: none;
}

.starter-chip:hover {
  border-color: var(--primary);
  transform: var(--lift-sm);
  box-shadow: var(--shadow-sm), 0 0 0 1px color-mix(in srgb, var(--primary) 22%, transparent);
}

.starter-chip:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

.composer-input-wrap {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
}

textarea {
  flex: 1;
  width: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  resize: none;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.15s;
  height: auto;
  min-height: calc(1.5em + 1rem);
  max-height: calc(5 * 1.5em + 1rem);
  overflow-y: hidden;
  overflow-x: hidden;
}

.send-button-round {
  position: static;
  width: calc(1.5em + 1rem);
  height: calc(1.5em + 1rem);
  flex-shrink: 0;
  border: 0;
  border-radius: 50%;
  background: var(--primary-btn);
  color: var(--bg);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 180ms var(--ease-out-quart),
              box-shadow 180ms var(--ease-out-quart),
              background 180ms var(--ease-out-quart);
}

.send-button-round:hover {
  background: var(--primary-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.send-button-round.is-cancel-mode {
  background: var(--primary-btn);
}

.send-button-round.is-cancel-mode:hover {
  background: var(--primary-strong);
}

.send-button-round:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.send-button-round:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary), var(--shadow-md);
}

.send-button-icon {
  width: 1.08rem;
  height: 1.08rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.send-button-icon svg {
  width: 1.08rem;
  height: 1.08rem;
}

.send-button-icon path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-row {
  margin-top: 0.3rem;
  margin-bottom: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

#char-counter {
  font-size: 0.78rem;
  color: var(--muted);
  text-align: left;
  line-height: 1.1;
  padding-top: 0.08rem;
  padding-bottom: 0.08rem;
}

#char-counter.is-near-limit { color: var(--primary); }
#char-counter.is-at-limit   { color: var(--danger); }

.primary-button,
.secondary-button {
  border: 0;
  border-radius: 12px;
  padding: 0.7rem 1.1rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 180ms var(--ease-out-quart),
              box-shadow 180ms var(--ease-out-quart),
              background 180ms var(--ease-out-quart),
              border-color 180ms var(--ease-out-quart);
}

.primary-button {
  background: var(--primary-btn);
  color: var(--bg);
  border: 1px solid var(--primary-strong);
  box-shadow: var(--shadow-sm);
}

.primary-button:hover {
  background: var(--primary-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.primary-button:active {
  background: var(--primary-strong);
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.primary-button:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary), var(--shadow-sm);
}

.secondary-button {
  background: transparent;
  color: var(--primary-strong);
  border: 1px solid var(--border-strong);
  transition: background 180ms var(--ease-out-quart),
              border-color 180ms var(--ease-out-quart),
              transform 180ms var(--ease-out-quart),
              box-shadow 180ms var(--ease-out-quart);
}

.secondary-button:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  transform: var(--lift-sm);
  box-shadow: var(--shadow-sm);
}

.hidden {
  display: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  clip: rect(0 0 0 0);
  overflow: hidden;
  white-space: nowrap;
}

button:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
  transition: box-shadow 240ms var(--ease-out-quart);
}

@media (max-width: 768px) {
  html.mobile-menu-open,
  body.mobile-menu-open {
    height: var(--mobile-viewport-height, 100dvh);
    overflow: hidden;
  }

  html,
  body {
    height: var(--mobile-viewport-height, 100dvh);
    overflow: hidden;
  }

  body {
    min-height: var(--mobile-viewport-height, 100dvh);
    grid-template-rows: auto minmax(0, 1fr) auto;
  }

  .layout {
    height: 100%;
    min-height: 0;
    grid-template-rows: minmax(0, 1fr);
    align-content: stretch;
    overflow: hidden;
  }

  .welcome-panel {
    display: none;
  }

  .chat-panel {
    height: 100%;
    min-height: 0;
    display: grid;
    grid-template-rows: minmax(0, 1fr) auto auto;
    padding: 0;
  }

  .chat-shell {
    height: 100%;
    min-height: 0;
  }

  .chat-history {
    min-height: 0;
  }

  .hero {
    padding: 0.55rem 0.9rem;
  }

  .message {
    max-width: 94%;
  }

  .brand-row {
    position: relative;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: nowrap;
  }

  .brand-title {
    position: static;
    align-items: center;
    justify-content: flex-start;
    gap: 0.4rem;
    text-align: left;
    min-width: 0;
    flex: 0 1 auto;
  }

  .header-actions {
    position: relative;
    margin-left: auto;
    flex: 0 0 auto;
  }

  .header-menu-toggle {
    display: inline-flex;
  }

  .header-actions-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    width: min(17.5rem, 76vw);
    padding: 4.4rem 1.1rem 1.15rem;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    overflow-y: auto;
    gap: 0.9rem;
    border-left: 1px solid var(--border-soft);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(0.85rem);
    transition: opacity 180ms var(--ease-out-quart),
                transform 220ms var(--ease-out-quart),
                visibility 0ms linear 220ms;
  }

  .header-actions-drawer-head {
    display: flex;
    position: fixed;
    top: 0.55rem;
    right: 0.9rem;
    z-index: 31;
    align-items: center;
    justify-content: flex-end;
  }

  .header-actions.is-mobile-open .header-actions-panel {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
    transition: opacity 180ms var(--ease-out-quart),
                transform 220ms var(--ease-out-quart),
                visibility 0ms linear 0ms;
  }

  .header-menu-backdrop {
    position: fixed;
    inset: 0;
    z-index: 25;
    background: color-mix(in oklab, var(--text) 26%, transparent);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 180ms var(--ease-out-quart), visibility 0ms linear 180ms;
  }

  .header-actions.is-mobile-open .header-menu-backdrop {
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 180ms var(--ease-out-quart), visibility 0ms linear 0ms;
  }

  .header-actions.is-mobile-open .header-menu-toggle {
    opacity: 0;
    pointer-events: none;
  }

  .header-actions.is-mobile-open .header-menu-toggle__line:nth-child(2) {
    transform: translateY(6px) rotate(45deg);
  }

  .header-actions.is-mobile-open .header-menu-toggle__line:nth-child(3) {
    opacity: 0;
  }

  .header-actions.is-mobile-open .header-menu-toggle__line:nth-child(4) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .header-actions-group {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0.55rem;
  }

  .header-actions-group--middle {
    justify-content: center;
  }

  .header-actions-group--suggestions {
    flex: 1 1 auto;
    justify-content: center;
  }

  .header-actions-group--bottom {
    margin-top: auto;
  }

  .drawer-suggestions-toggle {
    position: relative;
  }

  .header-actions-panel .drawer-suggestions-toggle__chevron {
    position: absolute;
    right: 1rem;
    top: 50%;
    line-height: 1;
    transform: translateY(-50%);
    transition: transform 180ms var(--ease-out-quart);
  }

  .drawer-suggestions-toggle[aria-expanded="true"] .drawer-suggestions-toggle__chevron {
    transform: translateY(-50%) rotate(180deg);
  }

  .drawer-suggestions-content {
    display: none;
    width: calc(100% - 0.55rem);
    align-self: center;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid color-mix(in oklab, var(--primary) 28%, var(--border-soft));
    background: color-mix(in oklab, var(--surface) 72%, var(--primary-soft) 28%);
    box-shadow: 0 10px 24px oklch(0.14 0.03 220 / 0.08);
  }

  .drawer-suggestions-content.is-open {
    display: block;
  }

  .drawer-suggestions-content > *:first-child {
    margin-top: 0;
  }

  .drawer-suggestions-content > *:last-child {
    margin-bottom: 0;
  }

  .header-actions-panel .session-button,
  .header-actions-panel .secondary-button,
  .header-actions-panel .help-link {
    position: relative;
    width: calc(100% - 0.55rem);
    align-self: center;
    min-height: 2.75rem;
    justify-content: center;
    gap: 0;
    padding: 0.82rem 1rem;
    border-radius: var(--radius-sm);
    box-shadow: none;
    transform: none;
    text-align: center;
  }

  .header-actions-panel .help-link {
    height: auto;
  }

  .header-actions-panel .menu-button-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1rem;
    height: 1rem;
  }

  .header-actions-panel .menu-button-label {
    display: inline-block;
    width: 100%;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
  }

  .header-actions-panel .help-link__label {
    display: inline;
    width: 100%;
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
  }

  .header-actions-panel .help-link__icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    font-size: 1rem;
    line-height: 1;
    transform: translateY(-50%);
  }

  .brand-logo {
    height: 16px;
  }

  .brand-wordmark {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    margin: 0;
    max-width: calc(100% - 7.5rem);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 1rem;
    letter-spacing: 0.08em;
    text-align: center;
    pointer-events: none;
  }
}

@media (min-width: 769px) {
  .header-actions-panel {
    display: flex;
  }

  .header-actions-group--suggestions {
    display: none;
  }

  .header-actions-group--top,
  .header-actions-group--middle,
  .header-actions-group--bottom {
    display: contents;
  }
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.session-button {
  border: 2px solid var(--primary);
  background: transparent;
  color: var(--primary-strong);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.9rem;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: background 180ms var(--ease-out-quart),
              color 180ms var(--ease-out-quart),
              border-color 180ms var(--ease-out-quart),
              transform 180ms var(--ease-out-quart),
              box-shadow 180ms var(--ease-out-quart);
}

.session-button:hover {
  background: var(--primary);
  color: oklch(0.99 0.003 80);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) #new-session-button:hover {
    background: var(--primary-soft);
    border-color: var(--primary);
    color: var(--primary-strong);
    transform: var(--lift-sm);
    box-shadow: var(--shadow-sm);
  }
}

:root[data-theme="dark"] #new-session-button:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary-strong);
  transform: var(--lift-sm);
  box-shadow: var(--shadow-sm);
}

.session-button:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

.session-badge {
  display: inline-flex;
  align-self: center;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  line-height: 1;
  box-sizing: border-box;
  padding: 0 var(--space-sm);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  font-size: var(--text-xs);
  color: var(--muted);
  letter-spacing: 0.04em;
}

.session-badge:empty {
  display: none;
}

.locked-landing {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  min-height: 50vh;
}

.locked-landing.hidden {
  display: none;
}

.locked-login-button {
  width: 100%;
  max-width: 420px;
  border-radius: 14px;
  padding: 0.9rem 1.1rem;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

body.auth-locked .intro-panel,
body.auth-locked .cards-section,
body.auth-locked .chat-panel,
body.auth-locked .welcome-panel,
body.auth-locked .context-badge-section,
body.auth-locked .timeline-section {
  display: none;
}

body.auth-locked .welcome-panel-toggle {
  display: none;
}

body.auth-locked #login-button,
body.auth-locked #new-session-button,
body.auth-locked #logout-button,
body.auth-locked #prefs-menu-button {
  display: none;
}

body.auth-locked .layout {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* F8: cards de use case (sugestões de prompts) */
.cards-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: 0;
  padding: 0;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: thin;
}

/* Cards-grid: empilha macro cards por tema com altura natural, scroll via .cards-section. */
.cards-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Macro card styles */
.theme-group {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  background: color-mix(in srgb, var(--surface) 20%, transparent);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: left;
}

.theme-group__title {
  margin: 0 0 var(--space-xs);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--primary-strong);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.theme-group__cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.use-case-card {
  display: block;
  padding: var(--space-md);
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: var(--text);
  transition: border-color 180ms var(--ease-out-quart),
              box-shadow 180ms var(--ease-out-quart),
              transform 180ms var(--ease-out-quart);
}

.use-case-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 14px oklch(0.72 0.12 210 / 0.35);
  transform: var(--lift-sm);
}

.use-case-card:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

.card-categoria {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--primary-strong);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.card-label {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  display: block;
}

/* Cabeçalho interno do dropdown de sugestões */
.starters-header {
  display: none;
  position: relative;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: var(--space-xs);
}

.starters-header__title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--primary-strong);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  white-space: nowrap;
}

.starter-close-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--muted);
  padding: 0 0.25rem;
  font-family: inherit;
}

.starter-close-btn:hover {
  color: var(--text);
}

/* Backdrop do dropdown de sugestões: inserido no body via JS */
.starters-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--text) 38%, transparent);
}

.starters-backdrop.active {
  display: block;
}

@media (min-width: 901px) {
  .welcome-panel {
    padding: var(--space-md);
    gap: var(--space-sm);
  }

  .welcome-panel-content {
    gap: var(--space-sm);
  }

  .intro-panel {
    margin: 0;
    padding: 0;
  }

  .intro-title {
    font-size: clamp(1.05rem, 1.45vw, 1.35rem);
    line-height: 1.1;
  }

  .intro-text {
    font-size: var(--text-xs);
    line-height: 1.35;
    max-width: 34ch;
    margin-inline: auto;
  }

  .cards-section {
    gap: var(--space-xs);
  }

  .cards-grid {
    gap: var(--space-sm);
    overflow-y: auto;
    padding-right: 0.2rem;
  }

  .use-case-card {
    gap: 0.2rem;
    padding: 0.56rem 0.72rem;
  }

  .card-categoria {
    font-size: 0.62rem;
    letter-spacing: 0.1em;
  }

  .card-label {
    font-size: var(--text-sm);
    line-height: 1.14;
  }

  .welcome-tagline {
    font-size: 0.64rem;
    letter-spacing: 0.11em;
  }
}

.cards-hint {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

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

.small-button {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
}

/* Feature 2: links nas respostas do assistente */
.message.assistant a {
  color: var(--primary-strong);
  text-decoration: underline;
  word-break: break-all;
}

.message.assistant a:focus-visible {
  outline: none;
  box-shadow: var(--ring-primary);
}

/* F21: contexto interno (badge + timeline de progresso) */
.context-badge-section {
  max-width: 960px;
  margin: 0.5rem auto 0;
  padding: 0 1rem;
  min-height: 50px;
}

.context-badge {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  background: var(--primary-btn);
  color: var(--bg);
  box-shadow: var(--shadow-md);
  font-weight: 600;
}

.badge-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1rem;
  font-weight: 700;
}

.badge-metrics {
  display: flex;
  gap: 0.75rem;
  font-size: 0.82rem;
}

.badge-confidence,
.badge-latency {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* F21: Timeline (Progresso de Fases) — variante completa com ícones */
.timeline-section {
  max-width: 960px;
  margin: 1rem auto 0;
  padding: 0 1rem;
}

.timeline-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  overflow-x: auto;
  gap: 0.5rem;
}

.timeline-items {
  display: flex;
  align-items: center;
  gap: 0;
  width: 100%;
}

.timeline-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  position: relative;
  flex: 1;
  min-width: 80px;
}

.timeline-item.pending   { opacity: 0.5; }
.timeline-item.active    { opacity: 1; }
.timeline-item.completed { opacity: 0.8; }

.timeline-icon {
  font-size: 1.5rem;
  display: block;
}

.timeline-label {
  font-size: 0.75rem;
  text-align: center;
  color: var(--text);
  font-weight: 600;
  line-height: 1.2;
}

.timeline-status {
  font-size: 0.9rem;
  font-weight: bold;
  color: var(--primary);
}

.timeline-connector {
  height: 2px;
  background: var(--border);
  flex: 0.5;
  margin: 0 -0.25rem;
}

.timeline-item.active ~ .timeline-connector {
  background: var(--primary);
}

/* Mensagens — header e metadados */
.message-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.message-time {
  font-size: 0.75rem;
  color: var(--muted);
  opacity: 0.7;
}

.message-context {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Timeline pills — variante compacta inline (chips de fase) */
.timeline {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.timeline-step {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  color: var(--muted);
  font-size: 0.8rem;
}

.timeline-step.is-active {
  background: var(--primary-soft);
  color: var(--primary-strong);
  border-color: var(--primary);
  font-weight: 700;
}

.timeline-step.is-done {
  background: var(--surface);
  color: var(--text);
}

.timeline-separator {
  color: var(--muted);
  font-size: 0.8rem;
}

@media (max-width: 768px) {
  .cards-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
    grid-template-rows: repeat(4, auto);
  }
  .intro-panel,
  .cards-section,
  .context-badge-section,
  .timeline-section {
    padding: 0 0.35rem;
  }
  .context-badge,
  .cards-header,
  .composer-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .composer-head {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: nowrap;
  }

  .composer-head-right {
    margin-left: 0;
    width: auto;
    padding-right: 0;
    align-self: flex-start;
    justify-content: flex-end;
  }

  #clear-history-button {
    white-space: nowrap;
  }

  .composer-starters {
    /* Dropdown oculto por padrão no mobile — ativado pelo toggle */
    display: none;
    margin-bottom: 0;
  }

  /* Linha do toggle: visível no mobile, alinhada à esquerda com o input */
  .composer-starters-row {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 0.3rem;
  }

  /* Botão toggle de sugestões */
  .starters-toggle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    border: 1px solid var(--border-soft);
    border-radius: 999px;
    padding: 0.25rem 0.75rem;
    background: color-mix(in srgb, var(--surface) 88%, var(--primary-soft) 12%);
    color: var(--text);
    font-family: inherit;
    font-size: var(--text-xs);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
  }

  .starters-toggle-btn::before {
    content: '+';
    color: var(--primary-strong);
    font-weight: 700;
  }

  .starters-toggle-btn.hidden {
    display: none;
  }

  /* Dropdown expandido: painel flutuante acima do composer */
  .composer-starters.starters-expanded {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: var(--space-xs);
    position: fixed;
    bottom: calc(var(--composer-height, 130px) + 0.5rem);
    right: var(--space-md);
    width: min(280px, calc(100vw - 2 * var(--space-md)));
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    box-shadow: 0 -4px 24px oklch(0 0 0 / 0.22);
    padding: var(--space-sm);
    max-height: 55vh;
    overflow-y: auto;
    z-index: 102;
  }

  /* Backdrop opaco: gerenciado pelo JS no body, z-index abaixo do dropdown */
  .composer-starters.starters-expanded .starters-backdrop {
    display: none;
  }

  /* Cabeçalho e botão fechar visíveis no mobile expandido */
  .composer-starters.starters-expanded .starters-header {
    display: flex;
  }

  .composer-starters.starters-expanded .starter-close-btn {
    display: block;
  }

  /* Chips visíveis dentro do dropdown */
  .composer-starters.starters-expanded .starter-chip {
    flex-wrap: wrap;
    white-space: normal;
  }

  .form-row {
    flex-direction: row;
    width: 100%;
    justify-content: flex-start;
    align-items: center;
  }

  .send-button-round {
    width: calc(1.5em + 1rem);
    height: calc(1.5em + 1rem);
  }
  .badge-metrics {
    flex-direction: column;
    gap: 0.3rem;
    flex-wrap: wrap;
  }
  .timeline-label { font-size: 0.7rem; }
  .timeline-icon  { font-size: 1.2rem; }

  .error-banner {
    flex-direction: column;
    align-items: stretch;
  }

  .error-banner .secondary-button {
    align-self: center;
  }
}

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

    .timeline-label {
      display: none;
    }

    .timeline-item {
      min-width: 60px;
    }
  }

/* ─────────────────────────────────────────────────────────
 * F47 — Refresh Visual (marca GF + UX polish)
 * ───────────────────────────────────────────────────────── */

/* Focus cleanup: remover outline em cliques de mouse (focus sem keyboard) */
:focus:not(:focus-visible) {
  outline: none;
}

/* Diferenciação por domínio: background tint sutil (sem side-stripe borders) */
/* Cards mantêm cor uniforme (var(--surface) da regra base .use-case-card).
 * Diferenciação por domínio é dada pelo eyebrow (.card-categoria em teal). */

/* Animacao de entrada de mensagem */
.message {
  animation: msg-in 0.22s ease-out;
}

/* Destaque visual da nova resposta do assistente */
.message.assistant.is-new-response {
  animation: msg-in 0.22s ease-out, response-highlight 2s ease-out forwards;
  outline: none;
}

@keyframes response-highlight {
  0%   { box-shadow: 0 0 0 2px var(--primary), var(--shadow-sm); }
  65%  { box-shadow: 0 0 0 2px var(--primary), var(--shadow-sm); }
  100% { box-shadow: var(--shadow-sm); }
}

@media (prefers-reduced-motion: reduce) {
  .message.assistant.is-new-response {
    animation: none;
  }
}

.message.user.is-loading {
  animation: msg-in 0.22s ease-out, user-message-blink 1.4s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

.message.user.is-failed {
  background: var(--error-bg, #fff1ef);
  border: 1px solid var(--error-border, #f4b4ac);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--error-border, #f4b4ac) 42%, transparent), var(--shadow-sm);
  color: #3a1410;
}

.message.user.is-failed .message-meta,
.message.user.is-failed .message-role,
.message.user.is-failed .message-body {
  color: inherit;
}

.message-failed-status {
  margin-top: 0.55rem;
  color: #7a1f18;
  font-size: var(--text-sm);
  font-weight: 700;
}

.message-failed-details {
  margin-top: 0.45rem;
  color: #5f1711;
  font-size: 0.86rem;
  line-height: 1.45;
}

.message-failed-actions {
  margin-top: 0.7rem;
}

.message-failed-actions .secondary-button {
  background: color-mix(in srgb, var(--error-bg, #fff1ef) 42%, #ffffff);
  border-color: var(--error-border, #f4b4ac);
  color: #7a1f18;
}

.message-failed-actions .secondary-button:hover {
  background: color-mix(in srgb, var(--error-bg, #fff1ef) 72%, #ffffff);
  border-color: color-mix(in srgb, var(--error-border, #f4b4ac) 85%, #c63d31);
  color: #651711;
}

.message-failed-actions .secondary-button:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--error-border, #f4b4ac) 45%, transparent);
}

:root[data-theme="dark"] .message-failed-status,
:root:not([data-theme="light"]) .message-failed-status {
  color: #ffb8ad;
}

:root[data-theme="dark"] .message.user.is-failed,
:root:not([data-theme="light"]) .message.user.is-failed {
  color: #ffd8d2;
}

:root[data-theme="dark"] .message-failed-details,
:root:not([data-theme="light"]) .message-failed-details {
  color: #ffc9bf;
}

:root[data-theme="dark"] .message-failed-actions .secondary-button,
:root:not([data-theme="light"]) .message-failed-actions .secondary-button {
  background: color-mix(in srgb, #4a1a15 65%, #111111);
  border-color: #a4473d;
  color: #ffd8d2;
}

:root[data-theme="dark"] .message-failed-actions .secondary-button:hover,
:root:not([data-theme="light"]) .message-failed-actions .secondary-button:hover {
  background: color-mix(in srgb, #5d221c 72%, #111111);
  border-color: #cf6a5f;
  color: #ffe6e2;
}

.message-loading-status {
  display: none;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 600;
}

.message.user.is-loading .message-loading-status {
  display: inline-flex;
  color: oklch(0.98 0.008 220);
}

.message.user.is-loading .message-loading-status__icon {
  background: oklch(0.99 0.002 220);
}

.message-loading-status__icon {
  width: 22px;
  height: 22px;
  background: var(--primary-strong);
  transform-origin: center 58%;
  filter: drop-shadow(0 0 0.28rem color-mix(in srgb, var(--primary) 55%, transparent));
  -webkit-mask-image: url('/assets/icons/falcon-mark.svg');
  mask-image: url('/assets/icons/falcon-mark.svg');
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  animation: wings-glide 0.72s cubic-bezier(0.4, 0, 0.2, 1) infinite,
             wings-glow 1.4s ease-in-out infinite;
}

@keyframes user-message-blink {
  0%   { opacity: 1; }
  50%  { opacity: 0.58; }
  100% { opacity: 1; }
}

@keyframes wings-glide {
  0%   { transform: translateY(0) scaleX(1) scaleY(1) rotate(0deg); opacity: 0.78; }
  25%  { transform: translateY(-1px) scaleX(1.14) scaleY(0.82) rotate(-3deg); opacity: 1; }
  50%  { transform: translateY(0) scaleX(0.92) scaleY(1.12) rotate(2deg); opacity: 0.9; }
  75%  { transform: translateY(-1px) scaleX(1.12) scaleY(0.84) rotate(-2deg); opacity: 1; }
  100% { transform: translateY(0) scaleX(1) scaleY(1) rotate(0deg); opacity: 0.78; }
}

@keyframes wings-glow {
  0%   { filter: drop-shadow(0 0 0.18rem color-mix(in srgb, var(--primary) 38%, transparent)); }
  50%  { filter: drop-shadow(0 0 0.36rem color-mix(in srgb, var(--primary) 68%, transparent)); }
  100% { filter: drop-shadow(0 0 0.18rem color-mix(in srgb, var(--primary) 38%, transparent)); }
}

@keyframes msg-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* C.1 — Mount staggered do welcome panel */
@keyframes panel-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.welcome-panel .intro-panel {
  animation: panel-in 0.28s var(--ease-out-quart) 0ms both;
}
.welcome-panel .cards-section {
  animation: panel-in 0.28s var(--ease-out-quart) 80ms both;
}
.welcome-panel .welcome-tagline {
  animation: panel-in 0.28s var(--ease-out-quart) 140ms both;
}

@media (prefers-reduced-motion: reduce) {
  .welcome-panel .intro-panel,
  .welcome-panel .cards-section,
  .welcome-panel .welcome-tagline {
    animation: none;
  }
}

/* prefers-reduced-motion: aplicar nas animações remanescentes (msg-in, skeleton) */
@media (prefers-reduced-motion: reduce) {
  .message,
  .message.user.is-loading,
  .message-skeleton,
  .message-loading-status__icon {
    animation: none;
  }
}

/* Skeleton loading (Tier C) */
.message-skeleton {
  background: linear-gradient(90deg, var(--bg) 25%, oklch(0.94 0.012 205) 50%, var(--bg) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius);
  height: 3.5rem;
  margin: 0.5rem 0;
  max-width: 80%;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .message-skeleton {
    background: linear-gradient(90deg, var(--surface) 25%, oklch(0.30 0.020 210) 50%, var(--surface) 75%);
    background-size: 200% 100%;
  }
}

/* Toggle manual dark mode */
:root[data-theme="dark"] {
  --bg:              oklch(0.17 0.012 215);
  --surface:         oklch(0.22 0.014 212);
  --surface-welcome: oklch(0.30 0.028 208);
  --text:            oklch(0.94 0.012 205);
  --muted:           oklch(0.70 0.018 208);
  --primary:        oklch(0.72 0.12 210);
  --primary-strong: oklch(0.82 0.11 212);
  --primary-soft:   oklch(0.30 0.06 210);
  --primary-btn:    oklch(0.64 0.13 210);
  --accent:         oklch(0.66 0.09 210);
  --accent-strong:  oklch(0.56 0.08 212);
  --accent-soft:    oklch(0.28 0.05 208);
  --shadow-sm: 0 1px 3px  oklch(0.22 0.015 215 / 0.08);
  --shadow-md: 0 4px 14px oklch(0.22 0.015 215 / 0.10);
  --shadow-lg: 0 16px 40px oklch(0.22 0.015 215 / 0.14);
  --danger:        oklch(0.70 0.14 40);
  --danger-strong: oklch(0.80 0.13 40);
  --danger-soft:   oklch(0.32 0.08 38);
  --danger-border: oklch(0.48 0.12 38);
  --error-bg:        oklch(0.28 0.08 30);
  --error-border:    oklch(0.48 0.12 30);
  --user-msg-bg:     oklch(0.36 0.07 210);
  --user-msg-border: oklch(0.50 0.09 210);
  --border-soft:   oklch(0.30 0.015 210);
  --border:        oklch(0.40 0.020 210);
  --border-strong: oklch(0.55 0.028 210);
  --scrollbar-track: oklch(0.22 0.014 212);
  --scrollbar-thumb: oklch(0.52 0.050 210);
}

:root[data-theme="dark"] .message-skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, oklch(0.30 0.020 210) 50%, var(--surface) 75%);
  background-size: 200% 100%;
}

.icon-button {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.4rem 0.5rem;
  font-size: 1.1rem;
  cursor: pointer;
  line-height: 1;
  transition: background 0.15s;
}
.icon-button:hover {
  background: var(--primary-soft);
}

/* Empty state — SVG bot inline (Tier B) */
.empty-state__icon {
  width: 40px;
  height: 40px;
  color: var(--primary);
  margin-bottom: 0;
}
.empty-state__icon svg {
  width: 100%;
  height: 100%;
}

/* Timeline pills (Tier B — quando renderContext expoe timeline ativa) */
.timeline-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
}
.timeline-pill[data-state="active"] {
  background: var(--primary);
  color: white;
}
.timeline-pill[data-state="done"] {
  background: var(--primary-soft);
  color: var(--primary-strong);
}
.timeline-pill[data-state="done"]::before {
  content: "✓";
  font-weight: var(--weight-bold);
}

/* Role icons (MessageRenderer.js) — SVG via mask-image */
.role-icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
  background-color: currentColor;
}
.role-icon--user      { -webkit-mask-image: url('/assets/icons/user.svg');   mask-image: url('/assets/icons/user.svg'); }
.role-icon--assistant { display: none; }
.role-icon--system    { -webkit-mask-image: url('/assets/icons/system.svg'); mask-image: url('/assets/icons/system.svg'); color: var(--muted); }

/* F48: LGPD Consent Modal */
.consent-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.consent-modal.hidden { display: none; }
.consent-modal__backdrop {
  position: absolute;
  inset: 0;
  background: oklch(0.24 0.015 40 / 0.55);
}
.consent-modal__card {
  position: relative;
  background: var(--surface, #ffffff);
  color: var(--text, #112a2e);
  max-width: 520px;
  width: 100%;
  border-radius: 14px;
  padding: 28px 24px 20px;
  box-shadow: 8px 12px 32px rgba(17, 42, 46, 0.18), 0 1px 0 rgba(17, 42, 46, 0.08);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.consent-modal__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--primary-strong);
}
.consent-modal__body {
  margin: 0;
  font-size: var(--text-base, 0.95rem);
  line-height: 1.55;
  color: var(--text, #112a2e);
}
.consent-modal__checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: var(--text-sm, 0.875rem);
  color: var(--text, #112a2e);
  cursor: pointer;
  user-select: none;
}
.consent-modal__checkbox input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--primary-btn, #0f766e);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.consent-modal__actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 6px;
}
.consent-modal__actions .primary-button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .consent-modal__card {
    background: var(--surface);
    color: var(--text);
  }
  :root:not([data-theme="light"]) .consent-modal__body,
  :root:not([data-theme="light"]) .consent-modal__checkbox {
    color: var(--text);
  }
}
:root[data-theme="dark"] .consent-modal__card {
  background: var(--surface);
  color: var(--text);
}
:root[data-theme="dark"] .consent-modal__body,
:root[data-theme="dark"] .consent-modal__checkbox {
  color: var(--text);
}

/* Confirmação de ações destrutivas e logout ativo. */
.action-confirm-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.action-confirm-modal.hidden { display: none; }
.action-confirm-modal__backdrop {
  position: absolute;
  inset: 0;
  background: oklch(0.24 0.015 40 / 0.55);
}
.action-confirm-modal__card {
  position: relative;
  background: var(--surface, #ffffff);
  color: var(--text, #112a2e);
  width: min(640px, 92vw);
  max-height: 86vh;
  overflow-y: auto;
  border-radius: 14px;
  border: 2.5px solid var(--primary-strong);
  padding: 28px 24px 20px;
  box-shadow: 0 0 0 4px oklch(0.46 0.13 35 / 0.14), 8px 12px 32px rgba(17, 42, 46, 0.18), 0 1px 0 rgba(17, 42, 46, 0.08);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.action-confirm-modal__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--primary-strong);
}
.action-confirm-modal__body {
  margin: 0;
  font-size: var(--text-base, 0.95rem);
  line-height: 1.55;
  color: var(--text, #112a2e);
}
.action-confirm-modal__actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 6px;
}

/* Modal de visão geral do produto acessível pelo botão de ajuda. */
.help-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.help-modal.hidden { display: none; }
.help-modal__backdrop {
  position: absolute;
  inset: 0;
  background: oklch(0.24 0.015 40 / 0.55);
}
.help-modal__card {
  position: relative;
  width: min(600px, 92vw);
  max-height: 88vh;
  overflow: hidden;
  background: var(--surface);
  color: var(--text);
  border-radius: 14px;
  border: 2px solid var(--primary-strong);
  padding: 24px 22px 20px;
  box-shadow: 0 0 0 4px oklch(0.46 0.13 35 / 0.14), 8px 12px 32px rgba(17, 42, 46, 0.18), 0 1px 0 rgba(17, 42, 46, 0.08);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.help-modal__header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.help-modal__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--primary-strong);
}
.help-modal__body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.help-modal__intro {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
}
.help-modal__subtitle {
  margin: 0.35rem 0 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-strong);
}
.help-modal__list {
  margin: 0;
  padding-left: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.55;
}
.help-modal__actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.35rem;
}

/* Modal de sessão expirada */
.session-expired-modal {
  position: fixed;
  inset: 0;
  z-index: 10100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.session-expired-modal.hidden { display: none; }
.session-expired-modal__backdrop {
  position: absolute;
  inset: 0;
  background: oklch(0.24 0.015 40 / 0.65);
}
.session-expired-modal__card {
  position: relative;
  background: var(--surface, #ffffff);
  color: var(--text, #112a2e);
  max-width: 420px;
  width: 100%;
  border-radius: 14px;
  padding: 28px 24px 20px;
  box-shadow: 8px 12px 32px rgba(17, 42, 46, 0.22), 0 1px 0 rgba(17, 42, 46, 0.08);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.session-expired-modal__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--primary-strong);
}
.session-expired-modal__body {
  margin: 0;
  font-size: var(--text-base, 0.95rem);
  line-height: 1.55;
  color: var(--text, #112a2e);
}
.session-expired-modal__actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 6px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .session-expired-modal__card {
    background: var(--surface);
    color: var(--text);
  }
  :root:not([data-theme="light"]) .session-expired-modal__body {
    color: var(--text);
  }
}
:root[data-theme="dark"] .session-expired-modal__card {
  background: var(--surface);
  color: var(--text);
}
:root[data-theme="dark"] .session-expired-modal__body {
  color: var(--text);
}

.help-modal--fit-1 .help-modal__card {
  padding: 20px 18px 16px;
  gap: 0.7rem;
}

.help-modal--fit-1 .help-modal__title {
  font-size: clamp(1rem, 2.8vw, 1.12rem);
}

.help-modal--fit-1 .help-modal__intro,
.help-modal--fit-1 .help-modal__list {
  font-size: clamp(0.83rem, 2.2vw, 0.92rem);
  line-height: 1.35;
}

.help-modal--fit-1 .help-modal__subtitle {
  font-size: clamp(0.9rem, 2.4vw, 0.98rem);
  margin-top: 0.2rem;
}

.help-modal--fit-1 .help-modal__list {
  gap: 0.3rem;
}

.help-modal--fit-2 .help-modal__card {
  padding: 16px 14px 12px;
  gap: 0.55rem;
}

.help-modal--fit-2 .help-modal__body {
  gap: 0.55rem;
}

.help-modal--fit-2 .help-modal__title {
  font-size: clamp(0.94rem, 2.6vw, 1.02rem);
}

.help-modal--fit-2 .help-modal__intro,
.help-modal--fit-2 .help-modal__list {
  font-size: clamp(0.77rem, 2.05vw, 0.86rem);
  line-height: 1.28;
}

.help-modal--fit-2 .help-modal__subtitle {
  font-size: clamp(0.84rem, 2.2vw, 0.92rem);
  margin-top: 0.12rem;
}

.help-modal--fit-2 .help-modal__list {
  padding-left: 1.05rem;
  gap: 0.24rem;
}

.help-modal--fit-3 .help-modal__card {
  padding: 12px 11px 10px;
  gap: 0.45rem;
}

.help-modal--fit-3 .help-modal__body {
  gap: 0.42rem;
}

.help-modal--fit-3 .help-modal__title {
  font-size: clamp(0.88rem, 2.2vw, 0.95rem);
}

.help-modal--fit-3 .help-modal__intro,
.help-modal--fit-3 .help-modal__list {
  font-size: clamp(0.71rem, 1.85vw, 0.8rem);
  line-height: 1.2;
}

.help-modal--fit-3 .help-modal__subtitle {
  font-size: clamp(0.78rem, 2vw, 0.86rem);
  margin-top: 0;
}

.help-modal--fit-3 .help-modal__list {
  padding-left: 0.95rem;
  gap: 0.17rem;
}

.help-modal--fit-3 .help-modal__actions {
  margin-top: 0.2rem;
}

@media (max-width: 768px) {
  .action-confirm-modal,
  .prefs-modal,
  .help-modal {
    padding: 16px;
  }

  .action-confirm-modal__card,
  .prefs-modal__card,
  .help-modal__card {
    width: 100%;
    max-width: 640px;
    max-height: 86vh;
  }

  .consent-modal__actions,
  .action-confirm-modal__actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: stretch;
  }

  .consent-modal__actions button,
  .action-confirm-modal__actions button {
    flex: 1 1 0;
    width: auto;
  }

  .help-modal__actions button {
    width: 100%;
  }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .help-modal__card {
    background: var(--surface);
    color: var(--text);
  }
  :root:not([data-theme="light"]) .help-modal__intro,
  :root:not([data-theme="light"]) .help-modal__list {
    color: var(--text);
  }
  :root:not([data-theme="light"]) .action-confirm-modal__card {
    background: var(--surface);
    color: var(--text);
  }
  :root:not([data-theme="light"]) .action-confirm-modal__body {
    color: var(--text);
  }
}
:root[data-theme="dark"] .action-confirm-modal__card {
  background: var(--surface);
  color: var(--text);
}
:root[data-theme="dark"] .help-modal__card {
  background: var(--surface);
  color: var(--text);
}
:root[data-theme="dark"] .help-modal__intro,
:root[data-theme="dark"] .help-modal__list {
  color: var(--text);
}
:root[data-theme="dark"] .action-confirm-modal__body {
  color: var(--text);
}

/* F50 — Menu de personalizacao do agente (reusa visual do consent-modal). */
.prefs-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
}
.prefs-modal.hidden { display: none; }
.prefs-modal__backdrop {
  position: absolute;
  inset: 0;
  background: oklch(0.24 0.015 40 / 0.55);
}
.prefs-modal__card {
  position: relative;
  width: min(640px, 92vw);
  max-height: 86vh;
  overflow-y: auto;
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius);
  border: 2.5px solid var(--primary-strong);
  padding: 1.5rem 1.75rem;
  box-shadow: 0 0 0 4px oklch(0.46 0.13 35 / 0.14), 8px 12px 32px rgba(17, 42, 46, 0.18), 0 1px 0 rgba(17, 42, 46, 0.08);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.prefs-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.prefs-modal__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.005em;
}
.prefs-modal__tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(15, 42, 50, 0.15);
}
.prefs-modal__tab {
  background: transparent;
  border: 0;
  padding: 0.5rem 0.9rem;
  font: inherit;
  color: inherit;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.prefs-modal__tab.is-active {
  border-bottom-color: var(--primary);
  font-weight: 600;
}
.prefs-modal__panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.prefs-modal__panel.hidden { display: none; }
.prefs-modal__help {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(15, 42, 50, 0.78);
}
.prefs-modal__actions {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-top: 0.5rem;
}
.prefs-feedback {
  margin: 0;
  font-size: 0.9rem;
  color: var(--primary-strong);
  min-height: 1.25em;
  transition: opacity 200ms;
}
.prefs-feedback:empty { opacity: 0; }
.prefs-feedback.is-loading {
  animation: prefs-saving-pulse 1.6s ease-in-out infinite;
  color: var(--text-secondary);
}
@keyframes prefs-saving-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}
.prefs-feedback.success { color: var(--primary-strong); }
.prefs-feedback.error   { color: var(--danger); }
.prefs-modal__buttons {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}
.prefs-modal__buttons.is-loading button {
  pointer-events: none;
  opacity: 0.5;
  cursor: not-allowed;
}
.prefs-modal__row {
  display: flex;
  gap: 0.5rem;
}
.prefs-modal__row button {
  flex: 1;
}

@media (max-width: 480px) {
  .prefs-modal__row {
    flex-direction: column;
  }
}
.danger-button {
  border: 0;
  border-radius: 12px;
  padding: 0.7rem 1.1rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  transition: background 180ms var(--ease-out-quart),
              border-color 180ms var(--ease-out-quart),
              transform 180ms var(--ease-out-quart),
              box-shadow 180ms var(--ease-out-quart);
}
.danger-button:hover {
  background: oklch(0.97 0.02 25);
  transform: var(--lift-sm);
  box-shadow: var(--shadow-sm);
}

:root[data-theme="dark"] .danger-button,
:root:not([data-theme="light"]) .danger-button {
  color: #ffd8d2;
}

:root[data-theme="dark"] .danger-button:hover,
:root:not([data-theme="light"]) .danger-button:hover {
  background: color-mix(in srgb, #5d221c 72%, #111111);
  border-color: #cf6a5f;
  color: #ffe6e2;
}

.danger-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px oklch(0.55 0.20 25 / 0.35);
}
.prefs-modal__feedback {
  min-height: 1.2rem;
  font-size: 0.85rem;
  color: var(--primary-strong);
}
.prefs-modal__feedback.is-error { color: var(--danger-strong); }

.prefs-list,
.prefs-scope-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.prefs-row {
  display: grid;
  grid-template-columns: 9rem 1fr auto;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  border: 1px solid rgba(15, 42, 50, 0.12);
  border-radius: 8px;
  background: rgba(15, 42, 50, 0.02);
}
.prefs-row__label {
  font-weight: 600;
  font-size: 0.9rem;
}
.prefs-row__input,
.prefs-row__select {
  font: inherit;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: inherit;
}
.prefs-row__delete {
  font: inherit;
  padding: 0.3rem 0.65rem;
  background: transparent;
  border: 1px solid rgba(179, 38, 30, 0.45);
  color: #b3261e;
  border-radius: 6px;
  cursor: pointer;
}
.prefs-row__delete:hover { background: rgba(179, 38, 30, 0.08); }
.prefs-row__empty { color: rgba(15, 42, 50, 0.5); font-style: italic; }

.prefs-scope-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid rgba(15, 42, 50, 0.1);
  border-radius: 8px;
}
.prefs-scope-row__label { font-size: 0.92rem; }
.prefs-loading { color: rgba(15, 42, 50, 0.6); font-style: italic; margin: 0; }
.prefs-consent-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.5rem;
  font-size: 1rem;
  cursor: pointer;
}
.prefs-consent-row input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--primary);
  cursor: pointer;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .prefs-modal__card {
    background: var(--surface);
    color: var(--text);
  }
  :root:not([data-theme="light"]) .prefs-modal__help,
  :root:not([data-theme="light"]) .prefs-loading {
    color: var(--muted);
  }
  :root:not([data-theme="light"]) .prefs-row,
  :root:not([data-theme="light"]) .prefs-scope-row {
    background: oklch(0.94 0.012 50 / 0.04);
    border-color: oklch(0.94 0.012 50 / 0.16);
  }
  :root:not([data-theme="light"]) .prefs-row__input,
  :root:not([data-theme="light"]) .prefs-row__select {
    background: var(--bg);
    color: var(--text);
    border-color: var(--border);
  }
}
:root[data-theme="dark"] .prefs-modal__card {
  background: var(--surface);
  color: var(--text);
}
:root[data-theme="dark"] .prefs-modal__help,
:root[data-theme="dark"] .prefs-loading {
  color: var(--muted);
}
:root[data-theme="dark"] .prefs-row,
:root[data-theme="dark"] .prefs-scope-row {
  background: oklch(0.94 0.012 50 / 0.04);
  border-color: oklch(0.94 0.012 50 / 0.16);
}
:root[data-theme="dark"] .prefs-row__input,
:root[data-theme="dark"] .prefs-row__select {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
}

/* -- F72: Feedback buttons (??/??) --------------------------------------- */
.feedback-buttons {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.feedback-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  line-height: 1.5;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.feedback-btn__icon {
  width: 1rem;
  height: 1rem;
  fill: var(--primary-strong);
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

.feedback-btn:hover:not(:disabled) {
  background: var(--primary-soft);
  border-color: var(--primary-strong);
  box-shadow: var(--shadow-sm);
}

.feedback-btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.feedback-btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.feedback-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-strong);
  color: oklch(0.97 0.01 220);
  padding: 0.45rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  box-shadow: var(--shadow-md);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  animation: feedback-toast-in 0.2s ease, feedback-toast-out 0.3s ease 2.7s forwards;
}
.feedback-toast__icon {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  display: flex;
}
.feedback-toast__icon svg {
  width: 100%;
  height: 100%;
  fill: oklch(0.97 0.01 220);
}
[data-theme="dark"] .feedback-toast {
  background: var(--primary-strong);
  color: var(--primary-soft);
}
[data-theme="dark"] .feedback-toast__icon svg {
  fill: var(--primary-soft);
}

@keyframes feedback-toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes feedback-toast-out {
  to { opacity: 0; transform: translateX(-50%) translateY(8px); }
}