/* ═══════════════════════════════════════════════════════════════
   CHAT MESSAGE STYLING — Phase 18D
   Scoped to .synaptic-v2 to avoid colliding with old inline CSS
   ═══════════════════════════════════════════════════════════════ */

/* ── Container ── */
.synaptic-v2 .sv2-messages-container {
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
  padding: 32px 24px 48px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ── Base message row ── */
.synaptic-v2 .sv2-message {
  display: flex;
  gap: 12px;
  margin-bottom: 28px;
  animation: sv2-fadeIn 0.25s ease;
  position: relative;
  align-items: flex-start;
}

@keyframes sv2-fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── User message — right aligned ── */
.synaptic-v2 .sv2-message.sv2-user {
  flex-direction: row-reverse;
}

/* ── Avatars ── */
.synaptic-v2 .sv2-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  margin-top: 2px;
}

/* User avatar — indigo circle with initial */
.synaptic-v2 .sv2-avatar.sv2-avatar-user {
  background: var(--color-accent, #6366F1);
  color: #ffffff;
  font-family: var(--font-sans, 'Inter', sans-serif);
}

/* Assistant avatar — subtle surface with logo */
.synaptic-v2 .sv2-avatar.sv2-avatar-ai {
  background: var(--color-surface, #FFFFFF);
  border: 1.5px solid var(--color-border, #E7E5E4);
  color: var(--color-accent, #6366F1);
  padding: 5px;
}

.synaptic-v2 .sv2-avatar.sv2-avatar-ai svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Dark mode avatars */
.synaptic-v2[data-theme="dark"] .sv2-avatar.sv2-avatar-ai,
[data-theme="dark"] .synaptic-v2 .sv2-avatar.sv2-avatar-ai {
  background: var(--color-surface, #1C1917);
  border-color: var(--color-border, #292524);
}

/* ── Message body wrapper (avatar + content + meta) ── */
.synaptic-v2 .sv2-message-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  flex: 1;
}

.synaptic-v2 .sv2-message.sv2-user .sv2-message-body {
  align-items: flex-end;
}

/* ── Model label (assistant only) ── */
.synaptic-v2 .sv2-model-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-tertiary, #A8A29E);
  letter-spacing: 0.02em;
  padding-left: 2px;
  font-family: var(--font-sans, 'Inter', sans-serif);
  line-height: 1;
}

/* ── User bubble ── */
.synaptic-v2 .sv2-bubble {
  display: inline-block;
  max-width: 72%;
  padding: 12px 16px;
  border-radius: 18px 18px 4px 18px;
  background: var(--color-accent, #6366F1);
  color: #ffffff;
  font-size: 0.95rem;
  line-height: 1.65;
  font-family: var(--font-sans, 'Inter', sans-serif);
  word-break: break-word;
  white-space: pre-wrap;
}

/* Dark mode user bubble — slightly lighter indigo */
.synaptic-v2[data-theme="dark"] .sv2-bubble,
[data-theme="dark"] .synaptic-v2 .sv2-bubble {
  background: var(--color-accent, #818CF8);
}

/* ── Assistant content — no bubble, flows on page ── */
.synaptic-v2 .sv2-ai-content {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--color-text-primary, #1C1917);
  font-family: var(--font-sans, 'Inter', sans-serif);
  word-break: break-word;
  max-width: 100%;
}

.synaptic-v2[data-theme="dark"] .sv2-ai-content,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content {
  color: var(--color-text-primary, #FAFAF9);
}

/* ── Markdown elements inside assistant content ── */

/* Paragraphs */
.synaptic-v2 .sv2-ai-content p {
  margin-bottom: 14px;
}
.synaptic-v2 .sv2-ai-content p:last-child {
  margin-bottom: 0;
}

/* Headings */
.synaptic-v2 .sv2-ai-content h1,
.synaptic-v2 .sv2-ai-content h2,
.synaptic-v2 .sv2-ai-content h3,
.synaptic-v2 .sv2-ai-content h4 {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-weight: 600;
  color: var(--color-text-primary, #1C1917);
  margin: 20px 0 8px;
  line-height: 1.3;
}
.synaptic-v2 .sv2-ai-content h1 { font-size: 1.35rem; }
.synaptic-v2 .sv2-ai-content h2 { font-size: 1.15rem; }
.synaptic-v2 .sv2-ai-content h3 { font-size: 1.05rem; }
.synaptic-v2 .sv2-ai-content h4 { font-size: 0.95rem; }

.synaptic-v2[data-theme="dark"] .sv2-ai-content h1,
.synaptic-v2[data-theme="dark"] .sv2-ai-content h2,
.synaptic-v2[data-theme="dark"] .sv2-ai-content h3,
.synaptic-v2[data-theme="dark"] .sv2-ai-content h4,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content h1,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content h2,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content h3,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content h4 {
  color: var(--color-text-primary, #FAFAF9);
}

/* Lists */
.synaptic-v2 .sv2-ai-content ul,
.synaptic-v2 .sv2-ai-content ol {
  padding-left: 22px;
  margin-bottom: 14px;
}
.synaptic-v2 .sv2-ai-content li {
  margin-bottom: 6px;
  line-height: 1.65;
}
.synaptic-v2 .sv2-ai-content li:last-child {
  margin-bottom: 0;
}

/* Inline code */
.synaptic-v2 .sv2-ai-content code {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.875em;
  background: var(--color-surface, #FFFFFF);
  border: 1px solid var(--color-border, #E7E5E4);
  color: var(--color-accent, #6366F1);
  padding: 1px 6px;
  border-radius: 5px;
}

.synaptic-v2[data-theme="dark"] .sv2-ai-content code,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content code {
  background: #292524;
  border-color: #3C3836;
  color: #A5B4FC;
}

/* Code blocks — reset inline styles, handled by sv2-code-block wrapper */
.synaptic-v2 .sv2-ai-content pre {
  margin: 16px 0;
  padding: 0;
  background: none;
  border-radius: 0;
  overflow: visible;
}
.synaptic-v2 .sv2-ai-content pre code {
  all: unset;
  /* styles come from sv2-code-block below */
}

/* Blockquotes */
.synaptic-v2 .sv2-ai-content blockquote {
  border-left: 3px solid var(--color-accent, #6366F1);
  padding: 8px 0 8px 16px;
  margin: 14px 0;
  color: var(--color-text-secondary, #57534E);
  font-style: italic;
}

.synaptic-v2[data-theme="dark"] .sv2-ai-content blockquote,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content blockquote {
  color: var(--color-text-secondary, #D6D3D1);
}

/* Tables */
.synaptic-v2 .sv2-ai-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
  overflow-x: auto;
  display: block;
}
.synaptic-v2 .sv2-ai-content th,
.synaptic-v2 .sv2-ai-content td {
  padding: 9px 14px;
  border: 1px solid var(--color-border, #E7E5E4);
  text-align: left;
}
.synaptic-v2 .sv2-ai-content th {
  background: var(--color-surface, #FFFFFF);
  font-weight: 600;
  color: var(--color-text-primary, #1C1917);
}
.synaptic-v2 .sv2-ai-content tr:nth-child(even) td {
  background: var(--color-bg, #FAFAF9);
}

.synaptic-v2[data-theme="dark"] .sv2-ai-content th,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content th {
  background: #292524;
  color: var(--color-text-primary, #FAFAF9);
  border-color: #3C3836;
}
.synaptic-v2[data-theme="dark"] .sv2-ai-content td,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content td {
  border-color: #3C3836;
}
.synaptic-v2[data-theme="dark"] .sv2-ai-content tr:nth-child(even) td,
[data-theme="dark"] .synaptic-v2 .sv2-ai-content tr:nth-child(even) td {
  background: #1C1917;
}

/* Strong / em */
.synaptic-v2 .sv2-ai-content strong { font-weight: 600; }
.synaptic-v2 .sv2-ai-content em { font-style: italic; }

/* Links */
.synaptic-v2 .sv2-ai-content a {
  color: var(--color-accent, #6366F1);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.synaptic-v2 .sv2-ai-content a:hover {
  color: var(--color-accent-hover, #4F46E5);
}

/* ── Code block wrapper (injected by JS) ── */
.synaptic-v2 .sv2-code-block {
  background: #16130F;
  border-radius: 10px;
  margin: 16px 0;
  overflow: hidden;
  border: 1px solid #292524;
}

.synaptic-v2[data-theme="dark"] .sv2-code-block,
[data-theme="dark"] .synaptic-v2 .sv2-code-block {
  background: #0C0A09;
  border-color: #1C1917;
}

.synaptic-v2 .sv2-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: #1C1917;
  border-bottom: 1px solid #292524;
}

.synaptic-v2[data-theme="dark"] .sv2-code-header,
[data-theme="dark"] .synaptic-v2 .sv2-code-header {
  background: #14110F;
  border-bottom-color: #1C1917;
}

.synaptic-v2 .sv2-code-lang {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 11px;
  font-weight: 500;
  color: #A8A29E;
  letter-spacing: 0.05em;
  text-transform: lowercase;
}

.synaptic-v2 .sv2-code-copy {
  background: transparent;
  border: 1px solid #3C3836;
  color: #A8A29E;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 5px;
}
.synaptic-v2 .sv2-code-copy:hover {
  background: #292524;
  color: #D6D3D1;
  border-color: #57534E;
}
.synaptic-v2 .sv2-code-copy.sv2-copied {
  color: #34D399;
  border-color: #34D399;
}

.synaptic-v2 .sv2-code-body {
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.855rem;
  line-height: 1.65;
  color: #D4D4D4;
  white-space: pre;
  -webkit-overflow-scrolling: touch;
}

/* ── Copy response button (assistant messages) ── */
.synaptic-v2 .sv2-copy-response {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 10px;
  padding: 5px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-tertiary, #A8A29E);
  cursor: pointer;
  transition: all 0.15s;
  opacity: 0;
}
.synaptic-v2 .sv2-message:hover .sv2-copy-response {
  opacity: 1;
}
.synaptic-v2 .sv2-copy-response:hover {
  background: var(--color-surface, #FFFFFF);
  border-color: var(--color-border, #E7E5E4);
  color: var(--color-text-secondary, #57534E);
}
.synaptic-v2 .sv2-copy-response.sv2-copied {
  color: #10B981;
  border-color: #10B981;
  opacity: 1;
}

.synaptic-v2[data-theme="dark"] .sv2-copy-response:hover,
[data-theme="dark"] .synaptic-v2 .sv2-copy-response:hover {
  background: #292524;
  border-color: #3C3836;
  color: var(--color-text-secondary, #D6D3D1);
}

/* ── Thinking / loading indicator ── */
.synaptic-v2 .sv2-thinking {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  color: var(--color-text-tertiary, #A8A29E);
  font-size: 0.9rem;
  font-family: var(--font-sans, 'Inter', sans-serif);
}

.synaptic-v2 .sv2-thinking-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}

.synaptic-v2 .sv2-thinking-dots span {
  width: 5px;
  height: 5px;
  background: var(--color-accent, #6366F1);
  border-radius: 50%;
  animation: sv2-bounce 1.4s ease-in-out infinite;
}
.synaptic-v2 .sv2-thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.synaptic-v2 .sv2-thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes sv2-bounce {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.5; }
  40%           { transform: scale(1);   opacity: 1; }
}

/* ── Document attachment chip (inside user messages) ── */
.synaptic-v2 .sv2-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  text-decoration: none;
  color: #ffffff;
  font-size: 0.875rem;
  max-width: 240px;
  margin-bottom: 8px;
}
.synaptic-v2 .sv2-attachment-chip span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}


/* ═══════════════════════════════════════════════════════════════
   PHASE 18D — ICON-ONLY COPY BUTTON + POLISH
   ═══════════════════════════════════════════════════════════════ */

/* Copy button — icon only, subtle, hover-revealed */
.synaptic-v2 .sv2-copy-response {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  align-self: flex-start !important;
  width: 28px !important;
  height: 28px !important;
  max-width: 28px !important;
  padding: 0 !important;
  margin-top: 8px !important;
  background: transparent;
  border: none !important;
  border-radius: 6px;
  color: var(--color-text-tertiary, #A8A29E);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
  font-size: 0;
  gap: 0;
}

.synaptic-v2 .sv2-copy-response svg {
  width: 15px;
  height: 15px;
  display: block;
}

.synaptic-v2 .sv2-message:hover .sv2-copy-response {
  opacity: 1;
}

.synaptic-v2 .sv2-copy-response:hover {
  background: var(--color-surface, #FFFFFF) !important;
  color: var(--color-text-secondary, #57534E) !important;
  border: none !important;
}

.synaptic-v2 .sv2-copy-response.sv2-copied {
  background: transparent !important;
  color: #10B981 !important;
  opacity: 1 !important;
}

.synaptic-v2[data-theme="dark"] .sv2-copy-response:hover,
[data-theme="dark"] .synaptic-v2 .sv2-copy-response:hover {
  background: #292524 !important;
  color: var(--color-text-secondary, #D6D3D1) !important;
}

@media (hover: none) {
  .synaptic-v2 .sv2-copy-response {
    opacity: 0.6;
  }
}

/* Container + spacing polish */
.synaptic-v2 .sv2-messages-container {
  padding: 32px 32px 48px;
}

.synaptic-v2 .sv2-message {
  gap: 14px;
  margin-bottom: 24px;
}

.synaptic-v2 .sv2-model-label {
  margin-bottom: 2px;
}

/* Stronger assistant avatar */
.synaptic-v2 .sv2-avatar.sv2-avatar-ai {
  background: var(--color-bg, #FAFAF9);
  border: 1px solid var(--color-border, #E7E5E4);
  color: var(--color-accent, #6366F1);
  padding: 4px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.synaptic-v2[data-theme="dark"] .sv2-avatar.sv2-avatar-ai,
[data-theme="dark"] .synaptic-v2 .sv2-avatar.sv2-avatar-ai {
  background: #1C1917;
  border-color: #3C3836;
  color: #A5B4FC;
}

/* Message body widths */
.synaptic-v2 .sv2-message.sv2-ai .sv2-message-body {
  max-width: calc(100% - 46px);
}

.synaptic-v2 .sv2-bubble {
  max-width: 100%;
}

.synaptic-v2 .sv2-message.sv2-user .sv2-message-body {
  max-width: 72%;
}


/* ═══════════════════════════════════════════════════════════════
   PHASE 18E — WELCOME SCREEN + MESSAGE ACTIONS
   ═══════════════════════════════════════════════════════════════ */

/* ── Welcome screen layout ── */
.synaptic-v2 .sv2-welcome-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Subtle logo above greeting */
.synaptic-v2 .sv2-welcome-logo {
  width: 44px;
  height: 44px;
  color: var(--color-accent, #6366F1);
  opacity: 0.85;
  margin-bottom: 4px;
}
.synaptic-v2 .sv2-welcome-logo svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* New greeting — Inter, not Source Serif */
.synaptic-v2 .sv2-greeting {
  font-family: var(--font-sans, 'Inter', sans-serif) !important;
  font-size: 2.25rem !important;
  font-weight: 600 !important;
  letter-spacing: -0.02em;
  color: var(--color-text-primary, #1C1917);
  text-align: center;
  margin: 0 !important;
  line-height: 1.2;
}

.synaptic-v2 .sv2-greeting-sub {
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 1rem !important;
  font-weight: 400;
  color: var(--color-text-secondary, #57534E) !important;
  text-align: center;
  margin: 0 0 36px !important;
  line-height: 1.5;
}

/* Dark mode greeting */
.synaptic-v2[data-theme="dark"] .sv2-greeting,
[data-theme="dark"] .synaptic-v2 .sv2-greeting {
  color: var(--color-text-primary, #FAFAF9);
}

.synaptic-v2[data-theme="dark"] .sv2-greeting-sub,
[data-theme="dark"] .synaptic-v2 .sv2-greeting-sub {
  color: var(--color-text-secondary, #D6D3D1) !important;
}

/* ── Message actions row (Copy, Retry, + future TTS/Thumbs) ── */
.synaptic-v2 .sv2-msg-actions {
  display: flex !important;
  align-items: center;
  gap: 2px;
  margin-top: 8px;
  align-self: flex-start;
  opacity: 0;
  transition: opacity 0.15s;
}

.synaptic-v2 .sv2-message:hover .sv2-msg-actions {
  opacity: 1;
}

/* Touch devices — always visible */
@media (hover: none) {
  .synaptic-v2 .sv2-msg-actions {
    opacity: 0.6;
  }
}

/* Base action button (Copy, Retry, future TTS/Thumbs share these styles) */
.synaptic-v2 .sv2-msg-action {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 30px !important;
  height: 30px !important;
  max-width: 30px !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  border-radius: 7px;
  color: var(--color-text-tertiary, #A8A29E);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  font-size: 0;
}

.synaptic-v2 .sv2-task-card-actions .sv2-msg-action {
  font-size: 14px !important;
}

.synaptic-v2 .sv2-msg-action svg {
  width: 16px;
  height: 16px;
  display: block;
}

.synaptic-v2 .sv2-msg-action:hover {
  background: var(--color-surface, #FFFFFF) !important;
  color: var(--color-text-secondary, #57534E) !important;
}

.synaptic-v2[data-theme="dark"] .sv2-msg-action:hover,
[data-theme="dark"] .synaptic-v2 .sv2-msg-action:hover {
  background: #292524 !important;
  color: var(--color-text-secondary, #D6D3D1) !important;
}

/* Copied state — green checkmark briefly */
.synaptic-v2 .sv2-msg-action.sv2-copied {
  color: #10B981 !important;
}

/* Retry — spinning animation while regenerating */
.synaptic-v2 .sv2-msg-action.sv2-retrying svg {
  animation: sv2-spin 0.8s linear infinite;
}

@keyframes sv2-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Override old single copy-response rules so action row works cleanly */
.synaptic-v2 .sv2-msg-actions .sv2-copy-response {
  opacity: 1 !important;
  margin-top: 0 !important;
  align-self: auto !important;
}