/* ═══════════════════════════════════════════════════════════
   MATHEUSGPT · Design System & Tipografia Estilo Apple
   Inspirado no visual limpo, moderno e refinado de apple.com e iOS/macOS
   ═══════════════════════════════════════════════════════════ */
:root {
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Monaco, Consolas, monospace;
  --accent: #0066FF;
  --accent-hover: #0052CC;
  --accent-deep: #003D99;
  --accent-soft: rgba(0, 102, 255, 0.12);
  --accent-subtle: rgba(0, 102, 255, 0.06);
  --accent-glow: rgba(0, 102, 255, 0.35);
  --danger: #EF4444;
  --danger-hover: #DC2626;
  --danger-soft: rgba(239, 68, 68, 0.12);
  --success: #10B981;
  --warning: #F59E0B;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --trans: 0.2s var(--ease);
}

html[data-theme="dark"] {
  --page-bg: #09090B;
  --app: #0D0D11;
  --rail: #121216;
  --side: #121216;
  --card: #18181D;
  --card-2: #202026;
  --card-active: #262632;
  --input: #15151A;
  --text: #FAFAFA;
  --text-2: #A1A1AA;
  --muted: #71717A;
  --faint: #3F3F46;
  --line: #27272A;
  --line-hard: #3F3F46;
  --line-soft: #1E1E24;
  --bubble-user: #0066FF;
  --bubble-user-text: #FFFFFF;
  --bubble-ai: #16161B;
  --bubble-ai-text: #FAFAFA;
  --bubble-border: #27272A;
  --btn-dark: #202026;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.85), 0 0 0 1px #27272A;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.45), 0 0 0 1px #27272A;
  --code-bg: #060608;
  --composer-bg: #141418;
  --hl-bg: rgba(0, 102, 255, 0.32);
}

html[data-theme="light"] {
  --page-bg: #E8E8EC;
  --app: #FFFFFF;
  --rail: #F4F4F7;
  --side: #F7F7FA;
  --card: #FFFFFF;
  --card-2: #F0F0F4;
  --card-active: #E4E4EB;
  --input: #FFFFFF;
  --text: #09090B;
  --text-2: #27272A;
  --muted: #52525B;
  --faint: #D4D4D8;
  --line: #D4D4D8;
  --line-hard: #A1A1AA;
  --line-soft: #E4E4E7;
  --bubble-user: #0066FF;
  --bubble-user-text: #FFFFFF;
  --bubble-ai: #FFFFFF;
  --bubble-ai-text: #09090B;
  --bubble-border: #D4D4D8;
  --btn-dark: #09090B;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.12), 0 0 0 1px #D4D4D8;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.06), 0 0 0 1px #E4E4E7;
  --code-bg: #09090B;
  --composer-bg: #FFFFFF;
  --hl-bg: rgba(0, 102, 255, 0.18);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; width: 100%; }

body {
  font-family: var(--font);
  background: var(--page-bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: -0.012em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow: hidden;
  transition: background 0.3s ease;
}

::selection { background: var(--accent-soft); color: var(--accent); }
html[data-theme="dark"] ::selection { background: rgba(41, 151, 255, 0.3); color: #FFFFFF; }

button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font-family: inherit; }
kbd {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 6px;
  color: var(--muted);
}

/* Realce de Busca */
mark.search-hl {
  background: var(--hl-bg);
  color: inherit;
  padding: 1px 3px;
  border-radius: 4px;
}

/* ── Estrutura da Página ── */
.page {
  height: 100dvh;
  display: grid;
  place-items: center;
  padding: 20px;
  transition: padding 0.3s var(--ease);
}

.app {
  background: var(--app);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  width: min(1420px, 100%);
  height: min(910px, 100%);
  display: flex;
  overflow: hidden;
  position: relative;
  animation: slideIn 0.45s var(--ease) both;
  transition: background 0.3s, border-color 0.3s;
}

/* Overlay de Drag & Drop */
.drop-overlay {
  position: absolute;
  inset: 0;
  z-index: 90;
  background: rgba(15, 18, 24, 0.75);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  display: grid;
  place-items: center;
  animation: fadeIn 0.2s var(--ease);
}
.drop-overlay[hidden] { display: none !important; }
.drop-box {
  border: 2px dashed var(--accent);
  background: var(--card);
  padding: 32px 48px;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
}
.drop-box svg { width: 42px; height: 42px; color: var(--accent); animation: bounce 1.2s infinite; }
.drop-box p { font-size: 15px; font-weight: 600; letter-spacing: -0.015em; color: var(--text); }

/* ── Rail (Barra de Ações Estilo Apple) ── */
.rail {
  width: 68px;
  flex: none;
  background: var(--rail);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 0 14px;
  gap: 12px;
  border-right: 1px solid var(--line-soft);
  position: relative;
  z-index: 10;
  transition: background 0.3s;
}

.rail-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--card-2);
  border: 1px solid var(--line-soft);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
  transition: transform var(--trans);
}
.rail-logo svg { width: 22px; height: 22px; }
.rail-logo:hover { transform: scale(1.05); }

.rail-btn {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: transparent;
  color: var(--muted);
  position: relative;
  transition: all var(--trans);
}
.rail-btn svg { width: 20px; height: 20px; }
.rail-btn:hover { background: var(--card); color: var(--text); transform: translateY(-1px); }
.rail-btn.is-active {
  background: var(--accent);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--accent-glow);
}
.rail-btn.is-active::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 9px;
  bottom: 9px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--accent);
}

.rail-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.rail-spacer { flex: 1; }

.rail-avatar-btn {
  padding: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--trans);
}
.rail-avatar-btn:hover { transform: scale(1.08); }

.rail-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0071E3, #5AC8FA);
  color: #fff;
  font-weight: 700;
  font-size: 13.5px;
  display: grid;
  place-items: center;
  border: 2px solid var(--card-2);
  box-shadow: var(--shadow-sm);
}

#railTheme .icon-moon { display: none; }
html[data-theme="dark"] #railTheme .icon-sun { display: block; }
html[data-theme="dark"] #railTheme .icon-moon { display: none; }
html[data-theme="light"] #railTheme .icon-sun { display: none; }
html[data-theme="light"] #railTheme .icon-moon { display: block; }

/* ── Sidebar (Minhas Conversas) ── */
.sidebar {
  width: 320px;
  flex: none;
  background: var(--side);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line-soft);
  position: relative;
  transition: width 0.28s var(--ease), margin-left 0.28s var(--ease), background 0.3s;
}

body.sidebar-collapsed .sidebar {
  margin-left: -320px;
  pointer-events: none;
}

.side-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 18px 12px;
}
.side-head h1 {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--text);
}
.side-head-actions { display: flex; gap: 8px; position: relative; }

.btn-add {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #FFFFFF;
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
  display: grid;
  place-items: center;
  box-shadow: 0 2px 6px var(--accent-soft);
  transition: transform var(--trans), filter var(--trans);
}
.btn-add:hover { transform: scale(1.06); filter: brightness(1.08); }

.dropdown-wrap { position: relative; }
.btn-more {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--card);
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 1px;
  display: grid;
  place-items: center;
  transition: color var(--trans), background var(--trans);
}
.btn-more:hover { color: var(--text); background: var(--card-2); }

.side-dropdown {
  position: absolute;
  top: 36px;
  right: 0;
  z-index: 50;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 6px;
  display: flex;
  flex-direction: column;
  min-width: 230px;
  animation: popIn 0.2s var(--ease);
}
.side-dropdown[hidden] { display: none !important; }
.side-dropdown button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 9px;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-2);
  text-align: left;
  transition: background var(--trans), color var(--trans);
}
.side-dropdown button:hover { background: var(--card); color: var(--text); }
.side-dropdown button.danger:hover { background: var(--danger-soft); color: var(--danger); }
.side-dropdown .drop-divider { height: 1px; background: var(--line-soft); margin: 4px 0; }

.seg {
  display: flex;
  gap: 3px;
  margin: 0 16px 10px;
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid var(--line-soft);
  padding: 2.5px;
  border-radius: 980px;
}
html[data-theme="dark"] .seg {
  background: rgba(255, 255, 255, 0.08);
}
.seg-btn {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 6px 10px;
  border-radius: 980px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--trans);
}
.seg-btn.is-active {
  background: #FFFFFF;
  color: var(--text);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}
html[data-theme="dark"] .seg-btn.is-active {
  background: #3A3A3C;
  color: #F5F5F7;
}
.seg-btn.is-active .seg-ico { color: var(--accent); }
.seg-count {
  font-family: var(--mono);
  font-size: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 980px;
  padding: 1px 6px;
}
.seg-btn:not(.is-active) .seg-count {
  background: rgba(0, 0, 0, 0.06);
  color: var(--muted);
}
html[data-theme="dark"] .seg-btn:not(.is-active) .seg-count {
  background: rgba(255, 255, 255, 0.08);
}

.search-row {
  display: flex;
  gap: 8px;
  padding: 0 16px 10px;
}
.search {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--input);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 7px 12px;
  transition: border-color var(--trans), box-shadow var(--trans);
}
.search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.search svg { width: 14px; height: 14px; color: var(--faint); flex: none; }
.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  letter-spacing: -0.01em;
}
}
.search input::placeholder { color: var(--faint); }

.btn-filter {
  width: 38px;
  flex: none;
  border-radius: 11px;
  background: var(--card);
  color: var(--accent);
  display: grid;
  place-items: center;
  transition: background var(--trans), transform var(--trans);
}
.btn-filter:hover { background: var(--card-2); transform: translateY(-1px); }
.btn-filter svg { width: 17px; height: 17px; }

.conn-status {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 18px 8px;
  font-size: 11px;
  color: var(--muted);
}
.conn-status .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); transition: background 0.3s; }
.conn-status.ok .dot { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.conn-status.local .dot { background: #E8B76A; }

.chat-list {
  flex: 1;
  overflow-y: auto;
  padding: 2px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  scrollbar-width: thin;
}

/* Cabeçalho de Grupo Temporal na Sidebar */
.chat-group-header {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--faint);
  padding: 10px 8px 4px;
  text-transform: uppercase;
}

.chat-item {
  text-align: left;
  width: 100%;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  gap: 10px;
  position: relative;
  transition: all 0.16s var(--ease);
  animation: rise 0.25s var(--ease) both;
  color: var(--text);
}
.chat-item:hover {
  background: var(--card-2);
  border-color: var(--line);
}
.chat-item.is-active {
  background: var(--card-active);
  border-color: var(--line-hard);
  border-left: 3px solid var(--accent);
}

.chat-item-ico {
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--input);
  color: var(--muted);
  font-size: 13px;
}
.chat-item.is-active .chat-item-ico { color: var(--accent); background: var(--accent-soft); }

.chat-item-main { min-width: 0; flex: 1; }
.chat-item-top { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.chat-item-title { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-item-time { font-size: 10.5px; color: var(--faint); flex: none; }
.chat-item-preview {
  margin: 3px 0 0;
  font-size: 12px;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.45;
}

.empty-list {
  text-align: center;
  color: var(--faint);
  font-size: 12.5px;
  padding: 36px 14px;
  line-height: 1.6;
}

.chat-item-actions {
  position: absolute;
  top: 8px;
  right: 8px;
  display: none;
  gap: 4px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 2px;
  box-shadow: var(--shadow);
  animation: fadeIn 0.16s var(--ease);
}
.chat-item:hover .chat-item-actions,
.chat-item:focus-within .chat-item-actions { display: flex; }
.mini-btn {
  color: var(--muted);
  width: 27px;
  height: 27px;
  border-radius: 8px;
  font-size: 13px;
  display: grid;
  place-items: center;
  transition: all 0.16s;
}
.mini-btn:hover { background: var(--card); color: var(--text); }
.mini-btn.del:hover { color: var(--danger); background: var(--danger-soft); }

@media (hover: none) {
  .chat-item-actions { display: flex; }
  .chat-item-time { display: none; }
}

.side-foot {
  padding: 12px 18px 16px;
  border-top: 1px solid var(--line-soft);
}
.model-pick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--input);
  border: 1px solid var(--line-soft);
  border-radius: 20px;
  padding: 5px 6px 5px 12px;
  transition: border-color var(--trans);
  max-width: 100%;
}
.model-pick:hover { border-color: var(--accent); }
.model-pick .pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}
.model-pick select {
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 11px;
  max-width: 200px;
  cursor: pointer;
  padding: 2px 0;
}
.model-pick select option { background: var(--card-2); color: var(--text); }
.foot-note { margin: 8px 0 0; font-size: 11px; color: var(--faint); }
.link {
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent-deep);
  font-size: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}
html[data-theme="dark"] .link { color: var(--accent); }

/* ── Área Principal de Chat ── */
.chat {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--app);
  position: relative;
}

.chat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--app);
  z-index: 5;
}
.desktop-toggle { display: inline-grid; }
.chat-head-title { flex: 1; min-width: 0; }
.chat-head-title h2 {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.022em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}
.chat-head-title p {
  margin: 2px 0 0;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: -0.01em;
  display: flex;
  gap: 7px;
  align-items: center;
}
.chat-head-title .sep { opacity: 0.4; }
.chat-head-actions { display: flex; gap: 8px; }

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--muted);
  display: grid;
  place-items: center;
  transition: all var(--trans);
}
.icon-btn:hover {
  color: var(--text);
  border-color: var(--line-hard);
  background: var(--card-2);
}
.icon-btn.danger:hover {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: var(--danger);
}
.icon-btn.is-active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.icon-btn svg { width: 16px; height: 16px; }

.btn-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid transparent;
  color: var(--muted);
  display: inline-grid;
  place-items: center;
  transition: all var(--trans);
}
.btn-icon:hover {
  background: var(--card);
  border-color: var(--line);
  color: var(--text);
}
.only-mobile { display: none; }

/* ── Card de Conversa (Thread Card) ── */
.thread-card {
  flex: 1;
  min-height: 0;
  margin: 0;
  background: var(--app);
  border: none;
  border-radius: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}
html[data-theme="light"] .thread-card { background: var(--app); }

.thread {
  flex: 1;
  overflow-y: auto;
  padding: 22px 26px 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  scrollbar-width: thin;
  scroll-behavior: smooth;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
  mask-image: linear-gradient(to top, transparent 0%, black 28px);
}
body.is-streaming .thread { scroll-behavior: auto !important; }
.thread.is-switching { opacity: 0; transform: translateY(8px); }

/* Skeleton */
.skel-row { display: flex; flex-direction: column; gap: 8px; padding: 4px 0; }
.skel-head { width: 120px; height: 22px; border-radius: 7px; background: var(--card-2); }
.skel-line {
  height: 13px;
  border-radius: 7px;
  background: linear-gradient(90deg, var(--card-2) 25%, var(--line) 50%, var(--card-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.3s infinite;
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* ── Mensagens do Chat (Estilo Apple / iMessage) ── */
.msg { max-width: 820px; animation: rise 0.3s var(--ease) both; position: relative; }
.msg-head { display: flex; align-items: center; gap: 9px; margin-bottom: 7px; }
.msg-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex: none;
  display: grid;
  place-items: center;
  font-size: 12.5px;
  font-weight: 700;
}
.msg.user .msg-avatar { background: var(--text); color: var(--card-2); }
.msg.assistant .msg-avatar { background: linear-gradient(135deg, #0071E3, #5AC8FA); color: #FFFFFF; }
.msg-who { font-size: 13px; font-weight: 600; letter-spacing: -0.015em; color: var(--text); }
.msg-time { font-size: 11px; color: var(--muted); }
.msg-speed {
  font-family: var(--mono);
  font-size: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 980px;
  padding: 1px 7px;
  margin-left: 4px;
}
html[data-theme="light"] .msg-speed { color: var(--accent-deep); }

.bubble {
  border-radius: 18px;
  padding: 13px 17px;
  font-size: 14px;
  line-height: 1.55;
  letter-spacing: -0.008em;
  overflow-wrap: anywhere;
  position: relative;
}
.msg.user .bubble {
  background: var(--bubble-user);
  color: var(--bubble-user-text);
  border: 0;
  border-radius: 18px 18px 4px 18px;
  display: inline-block;
  box-shadow: 0 2px 8px rgba(0, 113, 227, 0.2);
}
.msg.user .bubble p { color: #FFFFFF; }
.msg.user .bubble a { color: #FFFFFF; text-decoration: underline; }
.msg.user .bubble code { background: rgba(255, 255, 255, 0.22); color: #FFFFFF; }

.msg.assistant .bubble {
  background: var(--bubble-ai);
  border: 1px solid var(--bubble-border);
  color: var(--bubble-ai-text);
  border-radius: 18px 18px 18px 4px;
  box-shadow: var(--shadow-sm);
}
.bubble p { margin: 0 0 10px; }
.bubble p:last-child { margin: 0; }
.bubble h1, .bubble h2, .bubble h3 {
  margin: 14px 0 6px;
  line-height: 1.25;
  font-weight: 600;
  font-family: var(--font);
  letter-spacing: -0.02em;
}
.bubble h1 { font-size: 18px; }
.bubble h2 { font-size: 16px; }
.bubble h3 { font-size: 14.5px; }
.bubble ul, .bubble ol { margin: 8px 0; padding-left: 22px; }
.bubble li { margin: 3px 0; }
.bubble a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
html[data-theme="light"] .bubble a { color: var(--accent-deep); }
.bubble code {
  font-family: var(--mono);
  font-size: 12px;
  background: rgba(127, 127, 127, 0.12);
  padding: 2px 6px;
  border-radius: 6px;
}

/* Tabelas em Markdown */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 12px 0;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.bubble table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  text-align: left;
}
.bubble th, .bubble td {
  padding: 9px 13px;
  border-bottom: 1px solid var(--line-soft);
}
.bubble th {
  background: var(--card-2);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.bubble tr:last-child td { border-bottom: 0; }
.bubble tr:nth-child(even) td { background: rgba(127, 127, 127, 0.04); }

/* Citações (Blockquotes) */
.bubble blockquote {
  margin: 10px 0;
  padding: 8px 14px;
  border-left: 3px solid var(--accent);
  background: var(--accent-subtle);
  border-radius: 0 10px 10px 0;
  color: var(--text-2);
}

/* Blocos de Código */
.codeblock {
  margin: 12px 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--code-bg);
  border: 1px solid var(--line);
}
.codeblock-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px 8px 14px;
  color: #86868B;
  font-family: var(--mono);
  font-size: 11px;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.codeblock-head button {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #EDE9E0;
  font-size: 11px;
  border-radius: 980px;
  padding: 3px 10px;
  transition: all var(--trans);
}
.codeblock-head button:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
}
.codeblock pre {
  margin: 0;
  padding: 12px 14px;
  overflow-x: auto;
  color: #E8EAED;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}

/* Ações no Rodapé da Mensagem */
.msg-foot {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.react { display: flex; gap: 5px; }
.react-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--line-soft);
  background: var(--card-2);
  font-size: 13px;
  display: grid;
  place-items: center;
  transition: all 0.18s;
}
.react-btn:hover { transform: scale(1.08); border-color: var(--accent); }
.react-btn.is-on { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.pill-btn {
  border: 1px solid var(--line-soft);
  background: var(--card-2);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: -0.01em;
  border-radius: 980px;
  padding: 5px 12px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.18s;
}
.pill-btn:hover { border-color: var(--accent); color: var(--text); transform: translateY(-1px); }
.pill-btn.is-active-audio {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
html[data-theme="dark"] .pill-btn.is-active-audio { color: var(--accent); }
.bookmark { margin-left: auto; }

/* Botão de Edição na Mensagem do Usuário */
.user-actions {
  display: none;
  gap: 6px;
  margin-top: 6px;
}
.msg.user:hover .user-actions { display: flex; }
.mini-action-btn {
  font-size: 11px;
  color: var(--muted);
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 8px;
  transition: all var(--trans);
}
.mini-action-btn:hover { color: var(--text); border-color: var(--accent); }

/* Chips de Acompanhamento (Follow-up prompts) */
.followup-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  animation: fadeIn 0.3s var(--ease);
}
.followup-chip {
  background: var(--card);
  border: 1px solid var(--line-soft);
  color: var(--text-2);
  font-size: 11.5px;
  font-weight: 500;
  padding: 5px 11px;
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--trans);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.followup-chip:hover {
  background: var(--card-2);
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-1px);
}

.typing { display: inline-flex; gap: 5px; padding: 4px 2px; }
.typing i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--faint);
  animation: bounce 1.1s infinite;
}
.typing i:nth-child(2) { animation-delay: 0.15s; }
.typing i:nth-child(3) { animation-delay: 0.3s; }

.stream-caret {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--accent);
  border-radius: 2px;
  vertical-align: -2px;
  margin-left: 3px;
  animation: blink 1s steps(2) infinite;
}

/* ── Welcome (Estado Vazio / Quick Assistance Estilo Apple) ── */
.welcome {
  margin: 8px 24px 0;
  background: var(--card-2);
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  padding: 28px 32px;
  text-align: center;
  position: relative;
  animation: popIn 0.35s var(--ease);
}
.welcome.is-hidden { display: none !important; }
.welcome-close {
  position: absolute;
  top: 12px;
  right: 12px;
  color: var(--muted);
  font-size: 14px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: all var(--trans);
}
.welcome-close:hover { background: var(--card); color: var(--text); }
.welcome-title {
  margin: 0;
  font-family: var(--font);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
}
.welcome-sub {
  margin: 8px 0 22px;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: -0.01em;
  line-height: 1.5;
}
.qa-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; text-align: left; }
.qa-grid-clean {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  text-align: left;
}
.qa-head { margin: 0 0 8px; font-size: 12px; font-weight: 600; display: flex; gap: 6px; align-items: center; }
.qa-card {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--line-soft);
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.5;
  border-radius: 14px;
  padding: 10px 12px;
  margin-bottom: 8px;
  transition: all var(--trans);
}
.qa-grid-clean .qa-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 0;
  cursor: pointer;
  background: var(--card);
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-sm);
  transition: all var(--trans);
}
.qa-grid-clean .qa-card strong {
  font-size: 13.5px;
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 6px;
}
.qa-grid-clean .qa-card span {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: -0.006em;
  line-height: 1.4;
}
.qa-grid-clean .qa-card:hover {
  border-color: var(--accent);
  background: var(--card-2);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}
button.qa-card:hover { border-color: var(--accent); transform: translateY(-2px); color: var(--text); }
.qa-card.dim { cursor: default; color: var(--muted); }

/* ── Barra de Personas / Modos Rápidos (Pills Estilo Apple) ── */
.persona-bar {
  display: flex;
  gap: 8px;
  padding: 4px 24px 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.persona-bar::-webkit-scrollbar { display: none; }
.persona-chip {
  padding: 6px 14px;
  border-radius: 980px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: all var(--trans);
}
.persona-chip:hover { color: var(--text); border-color: var(--line); background: var(--card-2); }
.persona-chip.is-active {
  background: var(--text);
  border-color: var(--text);
  color: var(--app);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

/* ── Container de Chips de Anexo ── */
.attachment-chips {
  display: flex;
  gap: 8px;
  padding: 4px 24px 6px;
  flex-wrap: wrap;
}
.attachment-chips[hidden] { display: none !important; }
.attachment-chip {
  background: var(--card-2);
  border: 1px solid var(--line);
  color: var(--text-2);
  font-size: 11.5px;
  font-family: var(--mono);
  border-radius: 980px;
  padding: 4px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  animation: popIn 0.2s var(--ease);
}
.attachment-chip button {
  color: var(--muted);
  font-size: 11px;
  cursor: pointer;
}
.attachment-chip button:hover { color: var(--danger); }

/* ── Comandos Rápidos Popup (/) ── */
.cmd-pop {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 126px;
  z-index: 30;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 6px;
  display: flex;
  flex-direction: column;
  min-width: 290px;
  animation: popIn 0.2s var(--ease);
}
.cmd-pop[hidden] { display: none !important; }
.cmd-pop button {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-2);
  text-align: left;
  transition: all var(--trans);
}
.cmd-pop button:hover, .cmd-pop button.is-selected { background: var(--card); color: var(--text); }
.cmd-pop code {
  font-family: var(--mono);
  font-size: 11.5px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 8px;
  color: var(--accent);
}

/* ── Composer Flutuante (Floating Pill Composer Estilo Apple) ── */
.composer-row {
  display: flex;
  gap: 10px;
  padding: 6px 24px 4px;
  align-items: stretch;
}
.composer {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--composer-bg);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 6px 8px 6px 14px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--trans), box-shadow var(--trans);
}
.composer:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), 0 8px 24px var(--accent-soft);
}
.wand-btn, .composer-icon-btn {
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--text-2);
  transition: all var(--trans);
}
.wand-btn:hover, .composer-icon-btn:hover {
  background: var(--card-2);
  border-color: var(--line-hard);
  color: var(--accent);
}
.wand-btn svg, .composer-icon-btn svg { width: 15px; height: 15px; }

.composer textarea {
  flex: 1;
  border: 0;
  outline: 0;
  resize: none;
  background: transparent;
  color: var(--text);
  font-size: 13.5px;
  letter-spacing: -0.01em;
  max-height: 150px;
  padding: 7px 2px;
  min-width: 0;
}
.composer textarea::placeholder { color: var(--muted); }

.send-btn {
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 8px;
  background: var(--accent);
  color: #FFFFFF;
  display: grid;
  place-items: center;
  box-shadow: 0 2px 8px var(--accent-soft);
  transition: all var(--trans);
}
.send-btn svg { width: 17px; height: 17px; }
.send-btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.send-btn .icon-stop { display: none; }

body.is-streaming .send-btn { background: var(--danger); color: #fff; }
body.is-streaming .send-btn .icon-send { display: none; }
body.is-streaming .send-btn .icon-stop { display: block; }

.mic-btn {
  width: 44px;
  height: 44px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  color: var(--muted);
  display: grid;
  place-items: center;
  transition: all var(--trans);
}
.mic-btn:hover {
  color: var(--text);
  border-color: var(--line-hard);
  transform: translateY(-1px);
}
.mic-btn svg { width: 18px; height: 18px; }
.mic-btn.is-recording {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
  animation: softPulse 1.2s infinite;
}

.composer-note {
  text-align: center;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: -0.01em;
  margin: 6px 0 10px;
}
.composer-note strong { font-family: var(--mono); font-weight: 600; }

/* ── Modo Foco / Zen ── */
body.zen-mode .page { padding: 0; }
body.zen-mode .app {
  border-radius: 0;
  width: 100vw;
  height: 100vh;
  border: 0;
}
body.zen-mode .rail { display: none; }
body.zen-mode .sidebar { display: none; }
body.zen-mode .thread-card {
  max-width: 860px;
  margin: 0 auto 12px;
  border: 0;
  background: transparent;
}
body.zen-mode #btnZenMode { color: var(--accent); }

/* ── Modais (Estilo Apple Sheet / Popover) ── */
.modal-root {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 18px;
}
.modal-root[hidden] { display: none !important; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.modal {
  position: relative;
  width: min(620px, 100%);
  max-height: 88dvh;
  overflow-y: auto;
  background: var(--card-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 24px 26px;
  animation: popIn 0.3s var(--ease);
}
.modal-head { display: flex; justify-content: space-between; align-items: center; }
.modal-head h3 { margin: 0; font-family: var(--font); font-size: 19px; font-weight: 600; letter-spacing: -0.022em; }
.modal-desc { font-size: 13px; color: var(--muted); line-height: 1.55; letter-spacing: -0.01em; margin: 6px 0 14px; }
.modal-desc code, .modal-note code { font-family: var(--mono); font-size: 11px; background: var(--card); padding: 1px 6px; border-radius: 6px; }

.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 12px; font-weight: 600; letter-spacing: -0.01em; color: var(--text-2); }
.field small { font-weight: 400; color: var(--muted); }
.field.full { grid-column: 1 / -1; }
.field input, .field textarea, .field select {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text);
  outline: 0;
  width: 100%;
  transition: border-color var(--trans), box-shadow var(--trans);
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field output { color: var(--accent); font-family: var(--mono); }
html[data-theme="dark"] .field output { color: var(--accent); }
.field input[type="range"] { padding: 0; accent-color: var(--accent); }

.model-row { display: flex; gap: 8px; }
.model-row select { flex: 1; min-width: 0; }
.model-row .btn-ghost { flex: none; padding: 8px 14px; }

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  align-items: center;
}
.modal-actions .spacer { flex: 1; }

.btn-ghost {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 8px 18px;
  border-radius: 9px;
  transition: all var(--trans);
}
.btn-ghost:hover {
  border-color: var(--line-hard);
  color: var(--text);
  background: var(--card-2);
}
.btn-ghost.mini { padding: 4px 10px; font-size: 11.5px; }

.btn-primary {
  border: 1px solid rgba(0, 0, 0, 0.15);
  background: var(--accent);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  padding: 9px 20px;
  border-radius: 9px;
  box-shadow: 0 2px 8px var(--accent-soft);
  transition: all var(--trans);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.modal-note { font-size: 12px; color: var(--muted); min-height: 18px; margin-top: 10px; }

/* ── Modal de Estatísticas / Atividade ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 12px 0 16px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-val { font-size: 22px; font-weight: 700; color: var(--accent); font-family: var(--mono); }
html[data-theme="light"] .stat-val { color: var(--accent); }
.stat-lbl { font-size: 11.5px; color: var(--muted); letter-spacing: -0.01em; }

.stats-detail {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
}
.stats-detail p { font-size: 12.5px; margin-bottom: 6px; }
.copy-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--input);
  border: 1px solid var(--line);
  padding: 7px 12px;
  border-radius: 980px;
}
.copy-box code { font-family: var(--mono); font-size: 11px; color: var(--text-2); overflow-x: auto; }
.small-text { font-size: 11.5px !important; color: var(--muted) !important; margin-top: 8px !important; }

/* ── Toasts (Estilo Apple Notification / HUD) ── */
.toast-root {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}
.toast {
  background: rgba(29, 29, 31, 0.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: #F5F5F7;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 10px 20px;
  border-radius: 980px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  animation: toastIn 0.28s var(--ease);
  max-width: min(520px, 92vw);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.toast.is-error { background: rgba(255, 59, 48, 0.9); border-color: rgba(255, 59, 48, 0.5); color: #fff; }
.toast.is-out { animation: toastOut 0.26s forwards; }

.scrim { display: none; }

/* ── Animações Modernas ── */
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes slideIn { from { opacity: 0; transform: translateY(10px) scale(0.995); } to { opacity: 1; transform: none; } }
@keyframes popIn { from { opacity: 0; transform: scale(0.96) translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes bounce { 0%, 100% { transform: translateY(0); opacity: 0.5; } 50% { transform: translateY(-4px); opacity: 1; } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes softPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes toastOut { to { opacity: 0; transform: translateY(8px); } }

/* ── Responsividade Completa (Mobile First & Adaptação Fluida) ── */
@media (max-width: 960px) {
  .page {
    padding: 0 !important;
    height: 100dvh;
    width: 100vw;
    display: block;
  }
  .app {
    height: 100dvh !important;
    width: 100vw !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }
  .rail {
    display: none !important;
  }
  .desktop-toggle {
    display: none !important;
  }
  .sidebar {
    position: fixed;
    z-index: 1000;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(340px, 86vw);
    border-radius: 0;
    border-right: 1px solid var(--line-hard);
    transform: translateX(-105%);
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 12px 0 36px rgba(0, 0, 0, 0.5);
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  body.nav-open .sidebar {
    transform: translateX(0);
  }
  .scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease);
  }
  body.nav-open .scrim {
    opacity: 1;
    pointer-events: auto;
  }
  .only-mobile {
    display: inline-grid;
  }
  .qa-grid,
  .qa-grid-clean {
    grid-template-columns: 1fr;
  }
  .thread-card {
    margin: 0;
    border-radius: 0;
  }
  .chat-head {
    padding-top: max(12px, env(safe-area-inset-top, 0px));
    padding-left: 14px;
    padding-right: 14px;
  }
  .thread {
    padding: 14px 14px 8px;
    gap: 14px;
  }
  .composer-row {
    padding: 6px 12px max(10px, env(safe-area-inset-bottom, 0px));
  }
  .composer textarea {
    font-size: 15px;
  }
  .persona-bar {
    padding: 4px 12px 6px;
  }
  .welcome {
    margin: 6px 12px 0;
    padding: 18px 16px;
  }
  .modal-root {
    padding: 0;
  }
}

@media (max-width: 640px) {
  .field-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .chat-head {
    padding: max(10px, env(safe-area-inset-top, 0px)) 12px 10px;
    gap: 8px;
  }
  .chat-head-title h2 {
    font-size: 15px;
  }
  .chat-head-title p {
    font-size: 10.5px;
  }
  .chat-head-actions {
    gap: 4px;
  }
  .icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
  }
  .bubble {
    font-size: 13.5px;
    padding: 11px 14px;
    border-radius: 14px;
  }
  .msg {
    max-width: 100%;
  }
  .mic-btn {
    width: 40px;
    height: 40px;
  }
  .send-btn {
    width: 32px;
    height: 32px;
  }

  /* Modais Adaptativos em Bottom Sheet no Celular */
  .modal-root {
    align-items: flex-end;
  }
  .modal,
  .auth-modal,
  .admin-modal {
    width: 100vw !important;
    max-width: 100vw !important;
    max-height: 88dvh !important;
    border-radius: 20px 20px 0 0 !important;
    border-bottom: none !important;
    margin: 0 !important;
    padding: 22px 18px max(20px, env(safe-area-inset-bottom, 0px)) !important;
    overflow-y: auto !important;
    animation: slideInBottom 0.28s var(--ease) both !important;
  }
  .admin-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .admin-table th,
  .admin-table td {
    padding: 8px 10px;
    font-size: 11.5px;
  }
}

@keyframes slideInBottom {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ═══════════════════════════════════════════════════════════
   NOVA SUÍTE DE RECURSOS AVANÇADOS · ESTILO APPLE
   ═══════════════════════════════════════════════════════════ */

/* ── 1. Spotlight / Command Palette (Ctrl+P / Cmd+K) ── */
.palette-modal-root {
  display: grid;
  place-items: start center;
  padding-top: 12vh;
}
.palette-modal {
  width: min(640px, 94vw);
  background: var(--card-2);
  backdrop-filter: blur(28px) saturate(190%);
  -webkit-backdrop-filter: blur(28px) saturate(190%);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.08);
  overflow: hidden;
  animation: popIn 0.22s var(--ease) both;
  display: flex;
  flex-direction: column;
}
.palette-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: transparent;
}
.palette-head svg {
  width: 20px;
  height: 20px;
  color: var(--muted);
  flex: none;
}
.palette-head input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 16px;
  color: var(--text);
  outline: none;
  font-weight: 400;
  letter-spacing: -0.015em;
}
.palette-head input::placeholder {
  color: var(--muted);
  font-weight: 400;
}
.palette-head kbd {
  font-size: 11px;
}
.palette-results {
  max-height: 380px;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.palette-cat {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 8px 10px 4px;
}
.palette-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--text);
  font-size: 13.5px;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: all 0.15s var(--ease);
  text-align: left;
  width: 100%;
}
.palette-item:hover, .palette-item.is-selected {
  background: var(--accent);
  color: #FFFFFF;
}
.palette-item:hover .palette-item-sub, .palette-item.is-selected .palette-item-sub {
  color: rgba(255, 255, 255, 0.82);
}
.palette-item:hover kbd, .palette-item.is-selected kbd {
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.3);
}
.palette-item-icon {
  font-size: 16px;
  display: grid;
  place-items: center;
  width: 24px;
  flex: none;
}
.palette-item-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}
.palette-item-title {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.palette-item-sub {
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.palette-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.palette-foot {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  padding: 8px 16px;
  border-top: 1px solid var(--line-soft);
  background: var(--card);
  font-size: 11px;
  color: var(--muted);
}
.palette-foot span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ── 2. Live JavaScript Sandbox Code Runner ── */
.codeblock-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.code-run-btn {
  background: rgba(52, 199, 89, 0.15) !important;
  color: #30D158 !important;
  border-color: rgba(52, 199, 89, 0.35) !important;
  font-weight: 600 !important;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.code-run-btn:hover {
  background: rgba(52, 199, 89, 0.28) !important;
  border-color: rgba(52, 199, 89, 0.6) !important;
  color: #34C759 !important;
}
.code-console {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #090A0B;
  color: #F5F5F7;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.5;
  animation: fadeIn 0.2s var(--ease);
}
.code-console-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 10.5px;
  color: #86868B;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.code-console-head button {
  color: #86868B;
  font-size: 10.5px;
  padding: 2px 6px;
  border-radius: 4px;
}
.code-console-head button:hover {
  color: #F5F5F7;
  background: rgba(255, 255, 255, 0.08);
}
.code-console-body {
  padding: 8px 12px;
  max-height: 220px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
.console-row {
  margin-bottom: 4px;
  padding-left: 14px;
  position: relative;
}
.console-row::before {
  content: "›";
  position: absolute;
  left: 0;
  color: #86868B;
}
.console-log { color: #E5E5EA; }
.console-info { color: #0A84FF; }
.console-warn { color: #FFD60A; }
.console-error { color: #FF453A; }
.console-return { color: #30D158; font-style: italic; }

/* ── 3. KaTeX (Equações Matemáticas) ── */
.math-block {
  margin: 12px 0;
  padding: 12px 16px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow-x: auto;
  text-align: center;
}
.katex-display {
  margin: 0 !important;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 0;
}
.math-inline {
  display: inline-block;
  padding: 0 3px;
  vertical-align: middle;
}

/* ── 4. Mermaid.js (Diagramas) ── */
.mermaid-wrap {
  margin: 14px 0;
  padding: 16px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow-x: auto;
  display: grid;
  place-items: center;
  animation: fadeIn 0.3s var(--ease);
}
.mermaid-wrap svg {
  max-width: 100%;
  height: auto;
}

/* ── 5. Fixação / Estrelas nas Mensagens ── */
.star-pill-count {
  position: absolute;
  top: -2px;
  right: -2px;
  background: #FF9500;
  color: #FFFFFF;
  font-size: 9.5px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  padding: 0 4px;
  box-shadow: 0 2px 6px rgba(255, 149, 0, 0.4);
}
.star-pill-count[hidden] { display: none !important; }
.msg.is-starred {
  border-left: 3px solid #FF9500 !important;
}
.pill-btn.is-starred {
  border-color: #FF9500;
  color: #FF9500;
  background: rgba(255, 149, 0, 0.12);
}

/* ── 6. Personas Customizadas ── */
.add-persona-chip {
  border-style: dashed;
  color: var(--accent);
  border-color: var(--accent);
}
.add-persona-chip:hover {
  background: var(--accent-soft);
}
.persona-chip .del-persona {
  display: inline-block;
  margin-left: 5px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1;
  padding: 1px 3px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.15s;
}
.persona-chip .del-persona:hover {
  color: var(--danger);
  background: var(--danger-soft);
}

/* ── 7. Gravação e Whisper Transcrição ── */
.mic-btn.is-recording {
  background: var(--danger) !important;
  color: #FFFFFF !important;
  animation: recPulse 1.2s infinite alternate !important;
  border-color: transparent !important;
}
.mic-btn.is-transcribing {
  background: var(--accent) !important;
  color: #FFFFFF !important;
  animation: softPulse 0.8s infinite alternate !important;
}
@keyframes recPulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 59, 48, 0.5); }
  100% { transform: scale(1.08); box-shadow: 0 0 0 10px rgba(255, 59, 48, 0); }
}

/* ── 8. Folha de Estilo para Impressão Apple (@media print) ── */
@media print {
  body {
    background: #FFFFFF !important;
    color: #000000 !important;
    font-size: 11pt !important;
    overflow: visible !important;
  }
  .page {
    padding: 0 !important;
    height: auto !important;
    display: block !important;
  }
  .app {
    box-shadow: none !important;
    border: none !important;
    border-radius: 0 !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .rail,
  .sidebar,
  .scrim,
  .composer-row,
  .composer-note,
  .persona-bar,
  .attachment-chips,
  .chat-head-actions,
  .msg-foot,
  .user-actions,
  .followup-wrap,
  .welcome,
  .cmd-pop,
  .modal-root,
  .toast-root {
    display: none !important;
  }
  .chat {
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .chat-head {
    border-bottom: 2px solid #000000 !important;
    padding: 16px 0 !important;
  }
  .chat-head-title h2 {
    font-size: 20pt !important;
    color: #000000 !important;
  }
  .thread-card {
    box-shadow: none !important;
    border: none !important;
    margin: 0 !important;
    background: transparent !important;
  }
  .thread {
    padding: 20px 0 !important;
    overflow: visible !important;
    height: auto !important;
  }
  .msg {
    page-break-inside: avoid !important;
    break-inside: avoid !important;
    margin-bottom: 20px !important;
    max-width: 100% !important;
  }
  .bubble {
    background: #FAFAFA !important;
    color: #1D1D1F !important;
    border: 1px solid #D2D2D7 !important;
    box-shadow: none !important;
    padding: 14px 18px !important;
  }
  .msg.user .bubble {
    background: #F0F4FF !important;
    border-color: #B8D3FF !important;
    color: #003366 !important;
  }
  .codeblock {
    border: 1px solid #CCCCCC !important;
    page-break-inside: avoid !important;
    break-inside: avoid !important;
    background: #F5F5F7 !important;
  }
  .codeblock pre {
    color: #111111 !important;
  }
}

/* ═══════════════════════════════════════════════════════════
   SISTEMA DE CONTAS DE USUÁRIO & PAINEL ADMINISTRATIVO
   ═══════════════════════════════════════════════════════════ */

/* ── 1. Banner de Usuário na Sidebar ── */
.side-head-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.user-pill-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 6px 10px;
  margin-top: 8px;
  animation: fadeIn 0.2s var(--ease);
}
.user-pill-info {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}
.user-pill-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 11px;
  display: grid;
  place-items: center;
  flex: none;
}
.user-pill-name {
  font-weight: 600;
  font-size: 12.5px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}
.badge-role {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: 980px;
  text-transform: uppercase;
  flex: none;
}
.badge-admin {
  background: rgba(255, 149, 0, 0.15);
  color: #FF9500;
  border: 1px solid rgba(255, 149, 0, 0.35);
}
.badge-user {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-glow);
}
.btn-user-switch {
  font-size: 11px;
  color: var(--muted);
  padding: 2px 8px;
  border-radius: 6px;
  transition: all 0.15s;
}
.btn-user-switch:hover {
  color: var(--danger);
  background: var(--danger-soft);
}

/* ── 2. Alternador de Visão Global (Admin) ── */
.admin-view-toggle {
  padding: 4px 14px 8px;
}
.admin-toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--text-2);
  background: rgba(255, 149, 0, 0.08);
  border: 1px dashed rgba(255, 149, 0, 0.35);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.admin-toggle-label:hover {
  background: rgba(255, 149, 0, 0.14);
}
.admin-toggle-label input {
  accent-color: #FF9500;
  cursor: pointer;
}

/* ── 3. Modal de Autenticação (Login & Registro) ── */
.auth-modal-root {
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.auth-modal {
  width: min(440px, 92vw);
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: popIn 0.25s var(--ease) both;
}
.auth-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.auth-logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, #0077ED 0%, #0058B0 100%);
  display: grid;
  place-items: center;
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(0, 113, 227, 0.3);
}
.auth-logo svg {
  width: 28px;
  height: 28px;
}
.auth-header h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}
.auth-tabs {
  display: flex;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 3px;
  gap: 3px;
}
.auth-tab {
  flex: 1;
  padding: 8px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  transition: all 0.18s;
  text-align: center;
}
.auth-tab.is-active {
  background: var(--card-2);
  color: var(--text);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-form .field input {
  font-size: 14px;
}
.auth-submit {
  width: 100%;
  padding: 12px;
  font-size: 14px;
  border-radius: 12px;
  margin-top: 4px;
}
.auth-quick-admin {
  text-align: center;
  margin-top: -4px;
}
.auth-quick-admin button {
  font-size: 11.5px;
  color: #FF9500;
}
.auth-quick-admin button:hover {
  text-decoration: underline;
}
.auth-error {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid rgba(255, 59, 48, 0.25);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.4;
}

/* ── 4. Painel Administrativo (Admin Modal & Table) ── */
.admin-modal {
  width: min(780px, 94vw);
  max-height: 88vh;
  overflow-y: auto;
}
.admin-head-title {
  display: flex;
  align-items: center;
  gap: 10px;
}
.admin-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}
.admin-section h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.admin-table-wrap {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--card);
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  text-align: left;
}
.admin-table th {
  background: var(--card-2);
  padding: 10px 14px;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.admin-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text);
  vertical-align: middle;
}
.admin-table tr:last-child td {
  border-bottom: none;
}
.admin-table tr:hover td {
  background: var(--card-2);
}
.user-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}
.user-avatar-mini {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--card-3);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
}
.tag-current {
  font-size: 10px;
  color: var(--accent);
  font-weight: 600;
}
.text-danger {
  color: #FF3B30 !important;
}
.text-muted {
  color: var(--muted);
  font-size: 11px;
}
.btn-view-user-chats {
  font-size: 11px;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--accent-glow);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-view-user-chats:hover {
  background: var(--accent);
  color: #FFFFFF;
}