:root {
  --bg-main: #0a0d14;
  --bg-card: #121826;
  --bg-card-hover: #182033;
  --bg-chat-user: #1e293b;
  --bg-chat-assistant: #0f1624;
  --border-subtle: #1e293b;
  --border-focus: #3b82f6;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-gold: #c5a059;
  --accent-green: #10b981;
  --danger: #ef4444;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --radius: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Navbar */
header.app-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.85rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 28px;
  height: 28px;
  color: var(--accent-cyan);
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.main-wrapper {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 1.75rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Badges */
.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background-color: rgba(59, 130, 246, 0.12);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.pill-badge.gold {
  background-color: rgba(197, 160, 89, 0.12);
  color: var(--accent-gold);
  border-color: rgba(197, 160, 89, 0.25);
}

.pill-badge.green {
  background-color: rgba(16, 185, 129, 0.12);
  color: var(--accent-green);
  border-color: rgba(16, 185, 129, 0.25);
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card.gold-border {
  border-left: 4px solid var(--accent-gold);
}

.card.blue-border {
  border-left: 4px solid var(--accent-blue);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.15rem;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease-in-out;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #fff;
}
.btn-primary:hover {
  background-color: #2563eb;
}

.btn-secondary {
  background-color: var(--bg-card-hover);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}
.btn-secondary:hover {
  background-color: #26334d;
}

.btn-gold {
  background-color: var(--accent-gold);
  color: #0a0d14;
  font-weight: 700;
}
.btn-gold:hover {
  background-color: #d8b871;
}

/* Inputs */
.input-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s;
}

.input-control:focus {
  border-color: var(--border-focus);
}

.input-control.mono {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

/* Chat Layout */
.chat-window {
  display: flex;
  flex-direction: column;
  height: 74vh;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  background-color: #07090f;
  overflow: hidden;
}

.chat-stream {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.msg-bubble {
  max-width: 86%;
  padding: 1rem 1.35rem;
  border-radius: 6px;
  position: relative;
  word-break: break-word;
  line-height: 1.65;
  font-size: 0.92rem;
}

.msg-bubble.user {
  align-self: flex-end;
  background-color: var(--bg-chat-user);
  border: 1px solid #334155;
  color: #f8fafc;
  border-right: 3px solid var(--accent-blue);
}

.msg-bubble.assistant {
  align-self: flex-start;
  background-color: var(--bg-chat-assistant);
  border: 1px solid var(--border-subtle);
  color: #f1f5f9;
  border-left: 3px solid var(--accent-cyan);
}

.msg-bubble.legal-counsel {
  border-left: 3px solid var(--accent-gold);
}

.msg-header {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.msg-bubble.assistant .msg-header {
  color: var(--accent-cyan);
}
.msg-bubble.legal-counsel .msg-header {
  color: var(--accent-gold);
}

.chat-composer {
  display: flex;
  padding: 0.85rem 1.25rem;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-subtle);
  gap: 0.75rem;
}

.chat-composer textarea {
  flex: 1;
  background-color: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  color: #fff;
  font-family: inherit;
  font-size: 0.92rem;
  resize: none;
  height: 48px;
  outline: none;
}

.chat-composer textarea:focus {
  border-color: var(--border-focus);
}

/* Rich Markdown & AI Rendering */
.markdown-body {
  font-size: 0.92rem;
  line-height: 1.7;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  color: #fff;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}
.markdown-body h1 { font-size: 1.35rem; }
.markdown-body h2 { font-size: 1.15rem; }
.markdown-body h3 { font-size: 1.02rem; }

.markdown-body p {
  margin-bottom: 0.75rem;
}

.markdown-body ul, .markdown-body ol {
  margin-left: 1.25rem;
  margin-bottom: 0.75rem;
}

.markdown-body li {
  margin-bottom: 0.25rem;
}

.markdown-body blockquote {
  border-left: 3px solid var(--border-subtle);
  padding-left: 1rem;
  color: var(--text-muted);
  margin: 0.75rem 0;
  font-style: italic;
}

.markdown-body code {
  font-family: var(--font-mono);
  background-color: rgba(0, 0, 0, 0.4);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
  color: #38bdf8;
}

.markdown-body pre {
  background-color: #0b0f17;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  margin: 0.85rem 0;
  position: relative;
}

.markdown-body pre code {
  background: transparent;
  padding: 0;
  color: #e2e8f0;
  font-size: 0.85rem;
  display: block;
}

.copy-code-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: #1e293b;
  border: 1px solid #334155;
  color: #cbd5e1;
  font-size: 0.72rem;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  cursor: pointer;
}
.copy-code-btn:hover {
  background-color: #334155;
  color: #fff;
}

/* Mermaid Diagrams */
.mermaid-container {
  background-color: #0d121d;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 1.25rem;
  margin: 1rem 0;
  display: flex;
  justify-content: center;
  overflow-x: auto;
}

.mermaid svg {
  max-width: 100%;
  height: auto;
}

/* Tables */
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.88rem;
}

.markdown-body th, .markdown-body td {
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--border-subtle);
  text-align: left;
}

.markdown-body th {
  background-color: var(--bg-card);
  color: var(--text-muted);
  font-weight: 600;
}

/* Toast */
.toast-rack {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 200;
}

.toast-bubble {
  background-color: var(--bg-card-hover);
  color: #fff;
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-cyan);
  padding: 0.75rem 1.25rem;
  border-radius: 4px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
  font-size: 0.88rem;
}

/* Live Thinking & Tool Activity Indicator */
.live-thinking-indicator {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-cyan);
  border-radius: 6px;
  padding: 0.65rem 1.15rem;
  font-size: 0.85rem;
  color: #e2e8f0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  margin-top: 0.35rem;
  margin-bottom: 0.35rem;
  animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.thinking-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(6, 182, 212, 0.2);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

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

.thinking-pulse-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  animation: pulse-dot 1.2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.3); }
}

.thinking-text {
  font-weight: 500;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.thinking-detail-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(0, 0, 0, 0.45);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  color: #38bdf8;
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border: 1px solid rgba(56, 189, 248, 0.2);
}