/* ── Page shell (dev preview only) ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'DM Sans', sans-serif;
  background: #0f1117;
  color: #e2e8f0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.preview-label {
  position: fixed;
  top: 20px; left: 50%;
  transform: translateX(-50%);
  background: #1e2130;
  border: 1px solid #2d3148;
  color: #64748b;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 6px 16px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}
.preview-label span { color: #f97316; }

/* ── Widget Styles ── */
/* ── CSS custom properties ── */
#dosa-chat-root {
  /* Dark mode (default) */
  --c-bg:        #000000;
  --c-surface:   #0a0a0a;
  --c-border:    #1a1a1a;
  --c-accent:    #00ff41;
  --c-accent-dim:#00cc33;
  --c-metric:    #ff0080;
  --c-text:      #ffffff;
  --c-muted:     #666666;
  --c-user-bg:   #1a1a1a;
  --c-user-text: #00ff41;
  --c-bot-bg:    transparent;
  --c-bot-text:  #e0e0e0;
  --c-grid:      #0d0d0d;
  
  /* Light mode */
  --c-light-bg:        #ffffff;
  --c-light-surface:   #f8f9fa;
  --c-light-border:    #e9ecef;
  --c-light-accent:    #0066cc;
  --c-light-accent-dim:#0052a3;
  --c-light-metric:    #cc0066;
  --c-light-text:      #212529;
  --c-light-muted:     #6c757d;
  --c-light-user-bg:   #e9ecef;
  --c-light-user-text: #0066cc;
  --c-light-bot-bg:    transparent;
  --c-light-bot-text:  #495057;
  --c-light-grid:      #f1f3f4;
  
  --radius:      2px;
  --font-mono:   'Inconsolata', monospace;
  --font-sans:   'Inter', sans-serif;
  --shadow:      none;
}

/* Light mode styles */
#dosa-chat-root.light {
  --c-bg:        var(--c-light-bg);
  --c-surface:   var(--c-light-surface);
  --c-border:    var(--c-light-border);
  --c-accent:    var(--c-light-accent);
  --c-accent-dim:var(--c-light-accent-dim);
  --c-metric:    var(--c-light-metric);
  --c-text:      var(--c-light-text);
  --c-muted:     var(--c-light-muted);
  --c-user-bg:   var(--c-light-user-bg);
  --c-user-text: var(--c-light-user-text);
  --c-bot-bg:    var(--c-light-bot-bg);
  --c-bot-text:  var(--c-light-bot-text);
  --c-grid:      var(--c-light-grid);
}

/* ── Bubble button ── */
#dosa-bubble {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 56px; height: 56px;
  border-radius: var(--radius);
  background: var(--c-bg);
  border: 2px solid var(--c-accent);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s ease-out;
  z-index: 99999;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-accent);
}
#dosa-bubble::before {
  content: 'QUERY';
  letter-spacing: 0.1em;
}
#dosa-bubble:active { transform: scale(.94); }
#dosa-bubble.open::before { content: 'CLOSE'; }

/* ── Unread badge ── */
#dosa-badge {
  position: absolute;
  top: -3px; right: -3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #ef4444;
  border: 2px solid var(--c-bg);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  color: #fff;
  display: none;
  align-items: center; justify-content: center;
}
#dosa-badge.visible { display: flex; }

/* ── Chat window ── */
#dosa-window {
  position: fixed;
  bottom: 88px; right: 24px;
  width: 480px;
  height: 640px;
  background: var(--c-bg);
  border: 2px solid var(--c-accent);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  z-index: 99998;
  overflow: hidden;
  transform: translateY(8px);
  opacity: 0;
  pointer-events: none;
  transition: transform .2s ease-out, opacity .2s;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 1px, var(--c-grid) 1px, var(--c-grid) 2px),
    repeating-linear-gradient(90deg, transparent, transparent 1px, var(--c-grid) 1px, var(--c-grid) 2px);
  background-size: 20px 20px;
}
#dosa-window.open {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: all;
}

/* ── Header ── */
#dosa-header {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 2px solid var(--c-accent);
  background: var(--c-surface);
  flex-shrink: 0;
  font-family: var(--font-mono);
  position: relative;
}
#dosa-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--c-accent);
}
.dosa-avatar {
  width: 36px; height: 36px;
  border-radius: var(--radius);
  background: var(--c-bg);
  border: 1px solid var(--c-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-accent);
  flex-shrink: 0;
  letter-spacing: 0.05em;
}
.dosa-header-info { flex: 1; min-width: 0; }
.dosa-header-name {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1.2;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.dosa-header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-muted);
  margin-top: 4px;
  font-weight: 400;
  letter-spacing: 0.05em;
}
.dosa-header-status::before {
  content: '[';
  color: var(--c-accent);
}
.dosa-header-status::after {
  content: ']';
  color: var(--c-accent);
}
.dosa-status-dot {
  width: 6px; height: 6px;
  border-radius: 0;
  background: var(--c-accent);
  animation: blink 1.5s infinite;
}
@keyframes blink {
  0%, 49%, 100% { opacity: 1; }
  50%, 99% { opacity: 0.3; }
}
/* Header buttons - consistent styling */
#dosa-clear-btn,
#dosa-theme-btn {
  background: transparent;
  border: 1px solid var(--c-accent);
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .15s;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: fit-content;
  white-space: nowrap;
  height: 32px;
  box-sizing: border-box;
}
#dosa-theme-btn:hover,
#dosa-clear-btn:hover { 
  background: var(--c-accent);
  color: var(--c-bg);
}
#dosa-theme-btn:active,
#dosa-clear-btn:active {
  transform: scale(.96);
}

/* ── Messages ── */
#dosa-messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
}
#dosa-messages::-webkit-scrollbar { width: 4px; }
#dosa-messages::-webkit-scrollbar-track { background: transparent; }
#dosa-messages::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 2px; }

/* ── Message bubbles ── */
.dosa-msg {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  animation: msgIn .2s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.dosa-msg.user { align-self: flex-end; align-items: flex-end; }
.dosa-msg.bot  { align-self: flex-start; align-items: flex-start; }

.dosa-msg-bubble {
  padding: 14px 18px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.65;
  word-break: break-word;
  font-weight: 400;
  border-left: 3px solid transparent;
}
.dosa-msg.user .dosa-msg-bubble {
  background: var(--c-user-bg);
  color: var(--c-user-text);
  border-left-color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}
.dosa-msg.user .dosa-msg-bubble::before {
  content: '> ';
  color: var(--c-accent);
  opacity: 0.6;
}
.dosa-msg.bot .dosa-msg-bubble {
  background: var(--c-bot-bg);
  color: var(--c-bot-text);
  border-left-color: var(--c-metric);
  border-right: 1px solid rgba(255,0,128,.1);
}
.dosa-msg-time {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--c-muted);
  margin-top: 4px;
  padding: 0 4px;
  letter-spacing: 0.05em;
}
.dosa-msg-time::before {
  content: '[';
  opacity: 0.5;
}
.dosa-msg-time::after {
  content: ']';
  opacity: 0.5;
}

/* ── Typing indicator ── */
.dosa-typing .dosa-msg-bubble {
  padding: 12px 16px;
}
.dosa-typing-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}
.dosa-typing-dots span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-muted);
  animation: dotBounce 1.2s infinite;
}
.dosa-typing-dots span:nth-child(2) { animation-delay: .2s; }
.dosa-typing-dots span:nth-child(3) { animation-delay: .4s; }
@keyframes dotBounce {
  0%, 60%, 100% { transform: translateY(0);   opacity: .4; }
  30%            { transform: translateY(-5px); opacity: 1; }
}

/* ── Welcome message ── */
.dosa-welcome {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  animation: msgIn .3s ease;
  border: 1px solid rgba(0,255,65,.1);
  border-radius: var(--radius);
  background: rgba(0,255,65,.02);
}
.dosa-welcome-icon {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--c-accent);
  border-radius: var(--radius);
  background: rgba(0,255,65,.03);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-accent);
  text-align: center;
  line-height: 1.6;
  letter-spacing: 0.05em;
}
.dosa-welcome-icon::before {
  content: 'QAInsights Knowledge Base\ASTATUS: ONLINE | 600+ ARTICLES\ARESPONSE: <100ms';
  white-space: pre;
}
.dosa-welcome h3 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
}
.dosa-welcome h3::before {
  content: '// ';
  color: var(--c-accent);
}
.dosa-welcome p {
  display: none;
}

/* ── Suggested questions ── */
.dosa-suggestions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0;
}
.dosa-suggestion-btn {
  background: transparent;
  border: 1px solid rgba(0,255,65,.2);
  border-left: 3px solid var(--c-accent);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 12px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  text-align: left;
  transition: all .15s ease-out;
  position: relative;
}
.dosa-suggestion-btn::before {
  content: '$ ';
  color: var(--c-accent);
  margin-right: 4px;
}
.dosa-suggestion-btn:hover {
  border-color: var(--c-accent);
  transform: translateX(4px);
}
.dosa-suggestion-btn:active {
  transform: translateX(2px);
}

/* ── Input area ── */
#dosa-input-area {
  padding: 16px 20px 20px;
  border-top: 2px solid var(--c-border);
  background: var(--c-surface);
  flex-shrink: 0;
}
#dosa-input-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}
#dosa-input {
  flex: 1;
  background: rgba(0,255,65,.02);
  border: 1px solid rgba(0,255,65,.2);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 12px 14px;
  resize: none;
  height: 44px;
  max-height: 100px;
  outline: none;
  transition: all .15s ease-out;
  line-height: 1.5;
  font-weight: 600;
}
#dosa-input:focus { 
  border-color: var(--c-accent);
}
#dosa-input::placeholder { 
  color: var(--c-muted);
  font-family: var(--font-mono);
}
#dosa-input::placeholder::before {
  content: '$ ';
}
#dosa-send {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  background: transparent;
  border: 1px solid var(--c-accent);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all .15s ease-out;
  position: relative;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--c-accent);
}
#dosa-send::before {
  content: 'RUN';
  letter-spacing: 0.1em;
}
#dosa-send:hover  { 
  background: var(--c-accent);
  color: var(--c-bg);
}
#dosa-send:active { 
  transform: scale(.96);
}
#dosa-send:disabled { 
  background: transparent;
  border-color: var(--c-muted);
  color: var(--c-muted);
  cursor: not-allowed;
}
#dosa-send:disabled::before {
  content: '...';
}
#dosa-send svg { pointer-events: none; }

#dosa-footer-note {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--c-muted);
  text-align: left;
  margin-top: 8px;
  opacity: .6;
  font-weight: 400;
  letter-spacing: 0.05em;
}
#dosa-footer-note::before {
  content: '// ';
  color: var(--c-accent);
  opacity: 0.5;
}

/* ── Markdown rendering ── */
.dosa-msg-bubble p  { margin: 0 0 6px; }
.dosa-msg-bubble p:last-child { margin-bottom: 0; }
.dosa-msg-bubble h1,
.dosa-msg-bubble h2,
.dosa-msg-bubble h3 {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--c-text);
  margin: 8px 0 4px;
}
.dosa-msg-bubble h1:first-child,
.dosa-msg-bubble h2:first-child,
.dosa-msg-bubble h3:first-child { margin-top: 0; }
.dosa-msg-bubble ul,
.dosa-msg-bubble ol {
  padding-left: 16px;
  margin: 4px 0;
}
.dosa-msg-bubble li { margin: 2px 0; }
.dosa-msg-bubble code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--c-user-bg);
  border: 1px solid var(--c-border);
  padding: 2px 6px;
  border-radius: var(--radius);
  color: var(--c-accent);
  font-weight: 600;
}
.dosa-msg-bubble pre {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius);
  padding: 12px;
  overflow-x: auto;
  margin: 8px 0;
}
.dosa-msg-bubble pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--c-text);
  font-size: 12px;
  font-weight: 400;
}
.dosa-msg-bubble strong { font-weight: 600; color: var(--c-text); }
.dosa-msg-bubble em     { font-style: italic; color: var(--c-muted); }
.dosa-msg-bubble a { 
  color: var(--c-accent);
  text-decoration: underline;
  font-weight: 600;
  transition: all .15s;
}
.dosa-msg-bubble a:hover { 
  opacity: 0.8;
}
.dosa-msg-bubble blockquote {
  border-left: 3px solid var(--c-metric);
  margin: 8px 0;
  padding: 8px 12px;
  color: var(--c-muted);
  font-style: normal;
  background: var(--c-surface);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
}
.dosa-msg-bubble hr {
  border: none;
  border-top: 1px solid var(--c-border);
  margin: 8px 0;
}

/* ── Mobile ── */
@media (max-width: 480px) {
  #dosa-window {
    bottom: 0; right: 0;
    width: 100vw;
    height: 75vh;
    border-radius: var(--radius) var(--radius) 0 0;
  }
  #dosa-bubble { bottom: 20px; right: 20px; }
  #dosa-header {
    gap: 12px;
  }
  #dosa-clear-btn,
  #dosa-theme-btn {
    font-size: 10px;
    padding: 4px 10px;
    height: 28px;
  }
}