/* Assistente IA — visual premium tech/IA */

.main.assistant-mode {
  --assistant-bg: #f6f5fb;
  --assistant-surface: #ffffff;
  --assistant-sidebar: rgba(255, 255, 255, 0.88);
  --assistant-border: rgba(15, 23, 42, 0.08);
  --assistant-user-bg: linear-gradient(135deg, #6366f1 0%, #7c3aed 100%);
  --assistant-user-text: #ffffff;
  --assistant-muted: #64748b;
  --assistant-glow: rgba(99, 102, 241, 0.14);
}

.shell.assistant-active .bottom-nav { display: none; }
.shell.assistant-active {
  height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
}
.shell.assistant-active .main { padding-bottom: 0; }
.shell.assistant-active .toast { bottom: calc(var(--safe-bottom) + 1rem); }

.main.assistant-mode {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
  padding-bottom: 0;
}

.main.assistant-mode.studio-mode .topbar.desktop-only,
.main.assistant-mode.studio-mode .mobile-header {
  display: none !important;
}

.main.assistant-mode .mobile-header { flex-shrink: 0; }
.main.assistant-mode #payment-mode-banner:not(.hidden) { flex-shrink: 0; }

.main.assistant-mode .topbar.desktop-only {
  display: flex !important;
  flex-shrink: 0;
  align-items: center;
  padding: 0.85rem 1.5rem;
  margin: 0 auto;
  max-width: none;
  width: 100%;
  border-bottom: 1px solid var(--border);
  background: var(--surface-glass);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.main.assistant-mode .content.assistant-fullpage {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0 !important;
  max-width: none !important;
  margin: 0 !important;
  width: 100%;
}

/* grid histórico | chat */
.assistant-page {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: minmax(0, 1fr);
  height: 100%;
  min-height: 0;
  background:
    radial-gradient(ellipse 70% 50% at 100% 0%, rgba(99, 102, 241, 0.08), transparent 55%),
    radial-gradient(ellipse 50% 40% at 0% 100%, rgba(139, 92, 246, 0.06), transparent 50%),
    var(--assistant-bg, var(--bg));
}

@media (min-width: 900px) {
  .assistant-page:not(.assistant-page--design) {
    grid-template-columns: 240px minmax(0, 1fr);
  }
}

.assistant-sidebar {
  display: none;
  flex-direction: column;
  min-height: 0;
  border-right: 1px solid var(--assistant-border, var(--border));
  background: var(--assistant-sidebar, var(--surface));
  backdrop-filter: blur(12px);
  overflow: hidden;
}

@media (min-width: 900px) {
  .assistant-sidebar { display: flex; }
}

.assistant-sidebar-head {
  flex-shrink: 0;
  padding: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.assistant-sessions {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.5rem;
}

.assistant-session-row {
  display: flex;
  align-items: stretch;
  gap: 2px;
  margin-bottom: 2px;
}

.assistant-session-row .assistant-session-btn {
  flex: 1;
  min-width: 0;
  margin-bottom: 0;
}

.assistant-session-archive {
  flex-shrink: 0;
  width: 32px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--assistant-muted, var(--muted));
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.assistant-session-row:hover .assistant-session-archive,
.assistant-session-row.active .assistant-session-archive { opacity: 1; }

.assistant-session-archive:hover {
  background: rgba(239, 68, 68, 0.08);
  color: #dc2626;
}

.assistant-session-archive [data-lucide] { width: 14px; height: 14px; }

.assistant-session-btn {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 2px;
  font-family: inherit;
}

.assistant-session-btn:hover { background: var(--surface-2); }
.assistant-session-btn.active {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.12);
}

.assistant-session-btn small {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.assistant-main {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  min-width: 0;
  min-height: 0;
  height: 100%;
}

.assistant-page:not(.assistant-page--design) .assistant-main #assistant-messages {
  grid-row: 1;
  min-height: 0;
  max-height: 100%;
  overflow-y: scroll;
  overflow-x: hidden;
}

.assistant-messages {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: scroll;
  overflow-x: hidden;
  padding: 1rem;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

.assistant-messages.is-streaming {
  scroll-behavior: auto;
}

@media (min-width: 900px) {
  .assistant-messages { padding: 1.25rem 1.5rem; }
}

/* thread centralizada — UMA coluna só */
.assistant-thread {
  max-width: 42rem;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.assistant-welcome {
  text-align: center;
  padding: 2.5rem 0.5rem 1.25rem;
  position: relative;
}

.assistant-welcome-orb {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #6366f1, #8b5cf6, #d4a853, #6366f1);
  opacity: 0.12;
  filter: blur(24px);
  animation: assistantWelcomeOrb 10s linear infinite;
  pointer-events: none;
}

@keyframes assistantWelcomeOrb {
  to { transform: translateX(-50%) rotate(360deg); }
}

.assistant-welcome h2 {
  margin: 0.85rem 0 0.35rem;
  font-family: var(--font-display, "Outfit", sans-serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  position: relative;
}

.assistant-welcome > p {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 26rem;
  margin: 0 auto;
  line-height: 1.5;
  position: relative;
}

.assistant-welcome-tiers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  margin-top: 1rem;
  position: relative;
}

.assistant-welcome-pill {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.08);
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.15);
  letter-spacing: 0.02em;
}

.assistant-welcome-pill--plus {
  background: rgba(139, 92, 246, 0.08);
  color: #7c3aed;
  border-color: rgba(139, 92, 246, 0.18);
}

.assistant-welcome-pill--max {
  background: rgba(212, 168, 83, 0.12);
  color: #92680a;
  border-color: rgba(212, 168, 83, 0.25);
}

/* mensagens */
.assistant-turn {
  padding: 0.75rem 0;
  clear: both;
}

.assistant-turn-user {
  display: flex;
  justify-content: flex-end;
}

.assistant-turn-assistant {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
}

.assistant-bubble-user {
  max-width: 85%;
  background: var(--assistant-user-bg, linear-gradient(135deg, #6366f1, #7c3aed));
  color: var(--assistant-user-text, #fff);
  padding: 0.7rem 1rem;
  border-radius: 1.25rem 1.25rem 4px 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.22);
}

.assistant-bubble-user p {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.assistant-bubble-user--media {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 180px;
}

.assistant-audio {
  width: 100%;
  max-width: 260px;
  height: 36px;
  border-radius: 8px;
}

.assistant-speak-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.55rem;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
}

.assistant-speak-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-soft);
}

.assistant-speak-btn [data-lucide] { width: 16px; height: 16px; }

.assistant-badge {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--gradient-brand, linear-gradient(135deg, #6366f1, #8b5cf6));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.28);
}
.assistant-badge [data-lucide] { width: 16px; height: 16px; }
.assistant-badge--lg {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.assistant-badge--lg [data-lucide] { width: 22px; height: 22px; }

.assistant-body {
  flex: 1;
  min-width: 0;
}

.assistant-bubble-assistant {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text);
}

/* activity slot — UM bloco só, nunca duplica */
/* activity — estilo Claude */
.assistant-turn-thinking {
  align-items: flex-start;
  gap: 0.85rem;
  animation: assistantFadeIn 0.35s ease;
}

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

.assistant-orb-wrap {
  position: relative;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  margin-top: 2px;
}

.assistant-orb {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #6366f1, #8b5cf6, #c084fc, #6366f1);
  animation: assistantOrbSpin 2.4s linear infinite;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.35);
}

.assistant-orb-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(99, 102, 241, 0.25);
  animation: assistantOrbPulse 2s ease-in-out infinite;
}

@keyframes assistantOrbSpin {
  to { transform: rotate(360deg); }
}

@keyframes assistantOrbPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.08); opacity: 1; }
}

.assistant-activity {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-height: 1.4em;
}

#assistant-activity.hidden { display: none; }

.assistant-thinking-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
}

.assistant-thinking-word {
  display: inline-block;
  min-width: 8ch;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.assistant-thinking-word.is-changing {
  animation: assistantWordSwap 0.45s ease;
}

@keyframes assistantWordSwap {
  0% { opacity: 0.2; transform: translateY(4px); }
  100% { opacity: 1; transform: translateY(0); }
}

.assistant-thinking-dots {
  display: inline-flex;
  gap: 3px;
}

.assistant-thinking-dots i {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--muted);
  animation: assistantDot 1.2s ease-in-out infinite;
  font-style: normal;
}

.assistant-thinking-dots i:nth-child(2) { animation-delay: 0.15s; }
.assistant-thinking-dots i:nth-child(3) { animation-delay: 0.3s; }

.assistant-status-sub {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--muted);
  font-weight: 500;
}

.assistant-run-meta {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.6875rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  opacity: 0.85;
}

.assistant-run-meta-sep { opacity: 0.5; }

.assistant-msg-meta {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.35rem;
  font-size: 0.6875rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  opacity: 0.75;
}

.assistant-msg-meta--live {
  opacity: 0.55;
}

.assistant-dots {
  display: inline-flex;
  gap: 3px;
  flex-shrink: 0;
}

.assistant-dots i {
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.5;
  animation: assistantDot 1.2s ease-in-out infinite;
  font-style: normal;
}

.assistant-dots i:nth-child(2) { animation-delay: 0.15s; }
.assistant-dots i:nth-child(3) { animation-delay: 0.3s; }

@keyframes assistantDot {
  0%, 60%, 100% { opacity: 0.35; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-2px); }
}

.assistant-cursor::after {
  content: "▋";
  animation: assistantBlink 1s step-end infinite;
  color: var(--primary);
}

@keyframes assistantBlink { 50% { opacity: 0; } }

/* markdown */
.markdown-body { line-height: 1.65; word-wrap: break-word; }
.markdown-body > *:first-child { margin-top: 0; }
.markdown-body > *:last-child { margin-bottom: 0; }
.markdown-body p { margin: 0 0 0.6rem; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { margin: 0.75rem 0 0.4rem; font-size: 1rem; font-weight: 700; }
.markdown-body ul, .markdown-body ol { margin: 0 0 0.6rem; padding-left: 1.25rem; }
.markdown-body li { margin: 0.2rem 0; }
.markdown-body strong { font-weight: 700; }
.markdown-body a { color: var(--primary); }
.markdown-body code { background: #f3f4f6; padding: 0.1rem 0.35rem; border-radius: 4px; font-size: 0.85em; }
.markdown-body pre { background: #111827; border-radius: 8px; overflow-x: auto; margin: 0 0 0.6rem; }
.markdown-body pre code { display: block; padding: 0.75rem; background: transparent; color: #e5e7eb; font-size: 0.8rem; }
.markdown-body blockquote { margin: 0 0 0.6rem; padding-left: 0.75rem; border-left: 3px solid var(--primary); color: #4b5563; }
.markdown-body table { width: 100%; border-collapse: collapse; font-size: 0.85rem; margin: 0 0 0.6rem; display: block; overflow-x: auto; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 0.4rem 0.55rem; }
.markdown-body th { background: #f9fafb; }

/* tools */
.assistant-tools { margin-top: 0.6rem; }
.assistant-tools-label { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin-bottom: 0.35rem; }

.assistant-tool-card {
  border: 1px solid var(--assistant-border, var(--border));
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.35rem;
  overflow: hidden;
  font-size: 0.8rem;
  box-shadow: var(--shadow-xs, 0 1px 2px rgba(0,0,0,0.04));
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.assistant-tool-card:hover {
  border-color: rgba(99, 102, 241, 0.2);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
}

.assistant-tool-head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.6rem;
  width: 100%;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
}

.assistant-tool-name { flex: 1; font-family: ui-monospace, monospace; font-size: 0.72rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.assistant-tool-body { border-top: 1px solid var(--border); padding: 0.45rem 0.6rem; background: var(--surface-2); }
.assistant-tool-body.hidden { display: none; }
.assistant-tool-body label { font-size: 0.62rem; font-weight: 700; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 0.2rem; }
.assistant-tool-body pre { margin: 0 0 0.4rem; font-size: 0.68rem; background: #111827; color: #e5e7eb; padding: 0.45rem; border-radius: 6px; overflow-x: auto; white-space: pre-wrap; }
.assistant-status-running { color: var(--primary); }
.assistant-status-done { color: var(--success); }
.assistant-status-error { color: var(--danger); }

/* composer */
.assistant-composer-wrap {
  flex-shrink: 0;
  border-top: 1px solid var(--assistant-border, var(--border));
  background: var(--assistant-bg, var(--surface));
  padding: 0.65rem 1rem calc(0.65rem + var(--safe-bottom));
}

.assistant-composer-inner {
  max-width: 42rem;
  margin: 0 auto;
}

.assistant-mobile-toolbar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
}

@media (min-width: 900px) {
  .assistant-mobile-toolbar { display: none; }
}

.assistant-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.assistant-chip {
  border: 1px solid rgba(99, 102, 241, 0.15);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease, transform 0.12s ease;
  backdrop-filter: blur(4px);
}

.assistant-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-1px);
}

.assistant-tier-wrap {
  position: relative;
  flex-shrink: 0;
}

.assistant-tier-select {
  position: relative;
}

.assistant-tier-select summary {
  list-style: none;
}

.assistant-tier-select summary::-webkit-details-marker { display: none; }

.assistant-tier-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border: 1px solid rgba(99, 102, 241, 0.12);
  border-radius: 999px;
  padding: 0.32rem 0.6rem 0.32rem 0.7rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
  cursor: pointer;
  font-family: inherit;
  user-select: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.assistant-tier-trigger:hover {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.22);
}

.assistant-tier-select[open] .assistant-tier-trigger {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(212, 168, 83, 0.1));
  color: #4f46e5;
  border-color: rgba(99, 102, 241, 0.28);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.12);
}

.assistant-tier-chevron { width: 14px; height: 14px; opacity: 0.65; transition: transform 0.15s ease; }
.assistant-tier-select[open] .assistant-tier-chevron { transform: rotate(180deg); }

.assistant-tier-menu {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  min-width: 220px;
  max-width: min(280px, 85vw);
  padding: 0.35rem;
  border: 1px solid var(--assistant-border, var(--border));
  border-radius: 12px;
  background: var(--assistant-surface, #fff);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  z-index: 20;
}

.assistant-tier-menu-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  width: 100%;
  border: none;
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: background 0.12s ease;
}

.assistant-tier-menu-item:hover { background: #f5f4f0; }

.assistant-tier-menu-item.is-active {
  background: #faf6ef;
}

.assistant-tier-menu-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text);
}

.assistant-tier-menu-hint {
  font-size: 0.68rem;
  color: var(--assistant-muted, var(--muted));
  line-height: 1.35;
}

.assistant-msg-meta {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.45rem;
  font-size: 0.68rem;
  color: var(--assistant-muted, var(--muted));
}

.assistant-composer {
  border: 1px solid var(--assistant-border, var(--border));
  border-radius: 1.35rem;
  background: var(--assistant-surface, var(--surface));
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
  position: relative;
}

.assistant-composer::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.35), rgba(139, 92, 246, 0.2), rgba(212, 168, 83, 0.15));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.assistant-composer:focus-within::before { opacity: 1; }

.assistant-composer:focus-within {
  border-color: transparent;
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.12);
}

.assistant-composer textarea {
  width: 100%;
  border: none;
  background: transparent;
  resize: none;
  padding: 0.7rem 1rem 0.25rem;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.5;
  min-height: 44px;
  max-height: 120px;
  outline: none;
}

.assistant-composer-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0.4rem 0.4rem 0.55rem;
  gap: 0.5rem;
}

.assistant-composer-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.assistant-lock,
.assistant-mic {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.assistant-lock [data-lucide],
.assistant-mic [data-lucide],
.assistant-send [data-lucide] {
  width: 18px;
  height: 18px;
  display: block;
}

.assistant-lock:hover:not(:disabled),
.assistant-mic:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.assistant-lock.is-active {
  border-color: var(--primary);
  color: #fff;
  background: var(--primary);
}

.assistant-lock:disabled,
.assistant-mic:disabled { opacity: 0.45; cursor: not-allowed; }

.assistant-quiz {
  margin-top: 0.65rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.assistant-quiz-q {
  margin: 0 0 0.55rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.assistant-quiz-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.55rem;
}

.assistant-quiz-opt {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.assistant-quiz-opt:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.assistant-plan {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.assistant-plan strong {
  display: block;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.assistant-plan p { margin: 0 0 0.35rem; }
.assistant-plan ol { margin: 0; padding-left: 1.1rem; }

.assistant-mic.is-recording {
  border-color: #ef4444;
  color: #ef4444;
  background: rgba(239, 68, 68, 0.08);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
  animation: assistantMicPulse 1.2s ease-in-out infinite;
}

.assistant-mic:disabled { opacity: 0.45; cursor: not-allowed; }

@keyframes assistantMicPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.assistant-hint-mic { color: var(--muted); }

.assistant-send {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--gradient-brand, linear-gradient(135deg, #6366f1, #8b5cf6));
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.12s ease, box-shadow 0.15s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}
.assistant-send [data-lucide] { width: 18px; height: 18px; }
.assistant-send:hover:not(:disabled) {
  transform: scale(1.04);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.38);
}
.assistant-send:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--primary-ring); }
.assistant-toolbar-btn { flex: 1; }
.assistant-empty-sessions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
}
.assistant-empty-sessions [data-lucide] { width: 16px; height: 16px; }
.assistant-tool-status { display: inline-flex; align-items: center; }
.assistant-tool-status [data-lucide] { width: 14px; height: 14px; }
.assistant-tool-spin [data-lucide] svg { animation: assistantSpin 1s linear infinite; }
.assistant-tool-duration { color: var(--muted); font-size: 0.68rem; }
.assistant-tool-chevron { color: var(--muted); display: inline-flex; }
.assistant-tool-chevron [data-lucide] { width: 14px; height: 14px; transition: transform 0.15s ease; }
.assistant-tool-card.is-open .assistant-tool-chevron [data-lucide] svg { transform: rotate(180deg); }
@keyframes assistantSpin { to { transform: rotate(360deg); } }

.assistant-send:disabled { background: var(--border); color: var(--muted); cursor: not-allowed; }
.assistant-hint { text-align: center; font-size: 0.65rem; color: var(--muted); margin: 0.35rem 0 0; }

.assistant-drawer-sessions { display: flex; flex-direction: column; gap: 0.25rem; max-height: 60vh; overflow-y: auto; }

.assistant-media-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.assistant-media {
  border: 1px solid var(--assistant-border, var(--border));
  border-radius: 14px;
  overflow: hidden;
  background: #0f0f18;
  box-shadow: 0 8px 24px rgba(15, 15, 24, 0.18);
}

.assistant-media video,
.assistant-media img {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  background: #111;
}

.assistant-media-download {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  border-top: 1px solid var(--assistant-border, var(--border));
  background: var(--assistant-surface, #fff);
  transition: background 0.15s ease, color 0.15s ease;
}

.assistant-media-download:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.assistant-media-download [data-lucide] { width: 14px; height: 14px; }

/* ─── Estúdio IA (Base44: canvas + painéis colapsáveis) ─── */
.assistant-page--design {
  --studio-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --studio-history-w: 52px;
  --studio-chat-w: min(400px, 38vw);
  --studio-rail-w: 52px;
  display: grid;
  grid-template-columns: var(--studio-history-w) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  flex: 1 1 0;
  height: 100%;
  min-height: 0;
  transition: grid-template-columns 0.34s var(--studio-ease);
  overflow: hidden;
}

.assistant-page--design > * {
  min-height: 0;
  min-width: 0;
}

.assistant-page--design[data-history="open"] {
  --studio-history-w: 260px;
}

.assistant-page--design[data-chat="closed"] {
  --studio-chat-w: 0px;
}

.assistant-page--design[data-chat-expanded="1"]:not([data-chat-custom="1"]) {
  --studio-chat-w: min(640px, 58vw);
}

.assistant-page--design[data-focus="1"] {
  --studio-history-w: var(--studio-rail-w);
  --studio-chat-w: 0px;
}

.studio-history {
  display: flex;
  min-height: 0;
  min-width: 0;
  border-right: 1px solid var(--assistant-border, var(--border));
  background: var(--assistant-sidebar, var(--surface));
  overflow: hidden;
}

.studio-history-rail {
  flex-shrink: 0;
  width: var(--studio-rail-w);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 0.65rem 0;
  border-right: 1px solid var(--assistant-border, var(--border));
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
}

.studio-rail-btn {
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.studio-rail-btn:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.studio-rail-btn [data-lucide] { width: 18px; height: 18px; }

.assistant-page--design[data-history="open"] #studio-toggle-history {
  background: var(--primary-soft);
  color: var(--primary);
}

.studio-history-panel {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.28s var(--studio-ease), transform 0.34s var(--studio-ease);
}

.assistant-page--design[data-history="closed"] .studio-history-panel {
  opacity: 0;
  transform: translateX(-12px);
  pointer-events: none;
}

.studio-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--assistant-border, var(--border));
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.studio-panel-actions {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.studio-new-btn { margin: 0.65rem 0.75rem 0.35rem; flex-shrink: 0; }

.studio-history .assistant-sessions {
  padding: 0.35rem 0.5rem 0.75rem;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

.studio-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--studio-chat-w);
  grid-template-rows: minmax(0, 1fr);
  min-height: 0;
  height: 100%;
  min-width: 0;
  transition: grid-template-columns 0.34s var(--studio-ease);
  overflow: hidden;
}

.studio-workspace > * {
  min-height: 0;
  min-width: 0;
}

.assistant-page--design.studio-chat-resizing .studio-workspace {
  transition: none;
}

.assistant-page--design.studio-chat-resizing .studio-chat {
  transition: none;
}

.studio-canvas {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  min-width: 0;
  background: #0c0c14;
  position: relative;
}

.studio-canvas-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(12, 12, 20, 0.92);
  backdrop-filter: blur(12px);
  flex-shrink: 0;
  z-index: 2;
}

.studio-canvas-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.studio-canvas-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #818cf8, #c084fc);
  box-shadow: 0 0 12px rgba(129, 140, 248, 0.65);
  flex-shrink: 0;
}

.studio-canvas-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: -0.01em;
}

.studio-canvas-sub {
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(148, 163, 184, 0.85);
  padding-left: 0.5rem;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
  white-space: nowrap;
}

.studio-canvas-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.studio-icon-btn,
.studio-pill-btn {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.studio-icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  padding: 0;
}

.studio-pill-btn {
  height: 34px;
  padding: 0 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.studio-icon-btn [data-lucide],
.studio-pill-btn [data-lucide] { width: 16px; height: 16px; }

.studio-icon-btn:hover,
.studio-pill-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.18);
  color: #f8fafc;
}

.studio-icon-btn.is-active,
.studio-pill-btn.is-active,
.studio-icon-btn--primary.is-active {
  background: rgba(99, 102, 241, 0.25);
  border-color: rgba(129, 140, 248, 0.45);
  color: #e0e7ff;
}

.studio-icon-btn--primary {
  background: rgba(99, 102, 241, 0.18);
  border-color: rgba(129, 140, 248, 0.35);
}

.studio-canvas-stage {
  flex: 1 1 0;
  min-height: 0;
  position: relative;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: #111118;
}

.studio-preview-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
  color: #94a3b8;
  background: #111118;
}

.studio-preview-fallback.hidden {
  display: none !important;
}

.studio-canvas-stage iframe.hidden {
  display: none !important;
}

.studio-canvas-stage iframe {
  display: block;
  width: 100%;
  min-height: 100%;
  height: auto;
  border: none;
  background: #fff;
}

.studio-canvas-stage.is-updated {
  animation: studioCanvasPulse 0.65s ease;
}

@keyframes studioCanvasPulse {
  0%, 100% { box-shadow: inset 0 0 0 0 rgba(99, 102, 241, 0); }
  50% { box-shadow: inset 0 0 0 2px rgba(129, 140, 248, 0.45); }
}

.studio-canvas-status {
  position: absolute;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  margin: 0;
  padding: 0.45rem 0.85rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.92);
  background: rgba(15, 15, 24, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  pointer-events: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  max-width: calc(100% - 2rem);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-canvas-status.is-live {
  color: #c7d2fe;
  background: rgba(49, 46, 129, 0.75);
  border-color: rgba(129, 140, 248, 0.45);
}

.studio-chat-fab {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 1rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(99, 102, 241, 0.45);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.25s ease;
}

.studio-chat-fab.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px) scale(0.96);
}

.studio-chat-fab:not(.hidden):hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(99, 102, 241, 0.55);
}

.studio-chat-fab [data-lucide] { width: 16px; height: 16px; }

.studio-chat {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  max-height: 100%;
  min-width: 0;
  border-left: 1px solid var(--assistant-border, var(--border));
  background: var(--assistant-surface, #fff);
  overflow: hidden;
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.28s var(--studio-ease), transform 0.34s var(--studio-ease);
  position: relative;
}

.studio-chat-resizer {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  margin-left: -4px;
  cursor: col-resize;
  z-index: 6;
  touch-action: none;
  background: transparent;
  border: none;
  padding: 0;
}

.studio-chat-resizer:hover,
.studio-chat-resizer.is-dragging {
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.22), transparent);
}

.studio-chat-grab {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.55rem 0 0.35rem;
  border: none;
  background: var(--assistant-surface, #fff);
  cursor: pointer;
  flex-shrink: 0;
}

.studio-chat-grab-bar {
  display: block;
  width: 40px;
  height: 4px;
  border-radius: 999px;
  background: var(--border, #cbd5e1);
  transition: width 0.2s ease, background 0.2s ease;
}

.studio-chat-grab:hover .studio-chat-grab-bar,
.assistant-page--design[data-chat-expanded="1"] .studio-chat-grab-bar {
  width: 52px;
  background: var(--primary, #6366f1);
}

.assistant-page--design[data-chat="closed"] .studio-chat {
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
  border-left-color: transparent;
  overflow: hidden;
}

.studio-chat-body {
  flex: 1 1 0;
  min-height: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  overflow: hidden;
}

.assistant-page--design #assistant-messages,
.assistant-page--design .assistant-messages.assistant-messages--studio {
  grid-row: 1;
  flex: none !important;
  min-height: 0 !important;
  max-height: 100% !important;
  height: auto !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  -webkit-overflow-scrolling: touch;
}

.assistant-page--design .studio-composer,
.assistant-page--design .assistant-composer-wrap.studio-composer {
  grid-row: 2;
  flex-shrink: 0;
}

.assistant-messages--studio {
  flex: 1 1 auto;
  min-height: 0;
  max-height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.assistant-messages--studio.is-streaming {
  scroll-behavior: auto;
}

.studio-composer {
  flex-shrink: 0;
  border-top: 1px solid var(--assistant-border, var(--border));
  background: var(--assistant-surface, #fff);
}

.studio-mobile-toolbar { display: none; }

@media (min-width: 900px) {
  .main.studio-mode .topbar { display: none; }
  .main.studio-mode .mobile-header { display: none; }
  .main.studio-mode { padding-bottom: 0; }

  .main.assistant-mode.studio-mode {
    height: 100dvh;
    max-height: 100dvh;
  }
}

@media (max-width: 899px) {
  .assistant-page--design {
    --studio-history-w: 0px;
    grid-template-columns: minmax(0, 1fr);
  }

  .assistant-page--design[data-history="open"] {
    --studio-history-w: 0px;
  }

  .studio-history {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 60;
    width: min(300px, 88vw);
    transform: translateX(-105%);
    transition: transform 0.34s var(--studio-ease);
    box-shadow: 8px 0 32px rgba(15, 23, 42, 0.18);
  }

  .assistant-page--design[data-history="open"] .studio-history {
    transform: translateX(0);
  }

  .studio-history-rail { display: none; }

  .assistant-page--design[data-history="closed"] .studio-history-panel {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  /* Vitrine + chat em coluna — sem overlay fixo que bloqueia scroll */
  .studio-workspace {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
  }

  .studio-canvas {
    flex: 1 1 0;
    min-height: 0;
  }

  .studio-chat {
    position: relative;
    flex: 0 0 auto;
    z-index: 1;
    height: min(42vh, 420px);
    max-height: min(42vh, 420px);
    min-height: 0;
    border-left: none;
    border-top: 1px solid var(--assistant-border, var(--border));
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -4px 24px rgba(15, 23, 42, 0.08);
    transform: none;
    opacity: 1;
    transition: height 0.34s var(--studio-ease), max-height 0.34s var(--studio-ease), opacity 0.28s ease;
  }

  .assistant-page--design[data-chat-expanded="1"] .studio-chat {
    height: min(58vh, 560px);
    max-height: min(58vh, 560px);
  }

  .assistant-page--design[data-chat="closed"] .studio-chat,
  .assistant-page--design[data-focus="1"] .studio-chat {
    height: 0;
    max-height: 0;
    opacity: 0;
    pointer-events: none;
    border-top-color: transparent;
    box-shadow: none;
  }

  .studio-chat-grab {
    display: flex;
  }

  .assistant-page--design .studio-chat .studio-chat-body {
    flex: 1 1 auto;
    min-height: 0;
    max-height: 100%;
  }

  .assistant-page--design #assistant-messages {
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
  }

  .studio-canvas-sub { display: none; }

  .studio-mobile-toolbar { display: flex; }

  .studio-canvas-bar .studio-pill-btn span { display: none; }
}

/* ─── IA quota bar (composer) ─── */
.assistant-quota-bar {
  margin: 0 0 0.65rem;
  padding: 0.65rem 0.75rem;
  border-radius: 12px;
  border: 1px solid rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
}
.assistant-quota-bar--warn {
  border-color: rgba(245, 158, 11, 0.5);
  background: rgba(245, 158, 11, 0.12);
}
.assistant-quota-bar--blocked {
  border-color: rgba(239, 68, 68, 0.45);
  background: rgba(239, 68, 68, 0.1);
}
.assistant-quota-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  margin-bottom: 0.35rem;
}
.assistant-quota-head strong {
  font-size: 0.72rem;
  color: var(--text-secondary);
}
.assistant-quota-track {
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.assistant-quota-track span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #f59e0b, #6366f1);
  transition: width 0.3s ease;
}
.assistant-quota-bar--blocked .assistant-quota-track span {
  background: linear-gradient(90deg, #ef4444, #dc2626);
}
.assistant-quota-foot {
  margin: 0.35rem 0 0;
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.35;
}
.assistant-quota-link {
  background: none;
  border: none;
  padding: 0;
  color: var(--primary);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}
.assistant-quota-link:hover { color: var(--accent); }