/* ============================================================
   Reach — Design System
   Outdoors: bright meadow content, deep ocean sidebar.
   ============================================================
   Palette (9 colors):
     Cream      #F8F5EE  — morning light on a meadow
     Deep Wood  #2C1810  — dark heartwood, old hardwood floors
     Bark       #6B5B4E  — weathered fence rails
     Driftwood  #9A8B7A  — sun-bleached wood, dry grass
     Sunflower  #E8A820  — warm yellow sunshine, golden fields
     Leaf       #3A8F3A  — lush green leaves in full sun
     Sky        #4A90D9  — clear blue afternoon sky
     Ocean      #1B3A5C  — deep water at the horizon
     Warm Red   #C55040  — autumn maple, clay chimney
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #F8F5EE;
  --surface-1: rgba(44, 24, 16, 0.05);
  --surface-2: rgba(44, 24, 16, 0.08);
  --surface-3: rgba(44, 24, 16, 0.12);
  --border: rgba(44, 24, 16, 0.15);
  --border-hover: rgba(44, 24, 16, 0.28);
  --fg: #2C1810;
  --fg-secondary: #6B5B4E;
  --fg-dim: #9A8B7A;
  --accent: #E8A820;
  --accent-hover: #D09018;
  --accent-dim: rgba(232, 168, 32, 0.14);
  --accent-glow: rgba(232, 168, 32, 0.25);
  --green: #3A8F3A;
  --green-dim: rgba(58, 143, 58, 0.12);
  --red: #C55040;
  --red-dim: rgba(197, 80, 64, 0.12);
  --amber: #D4960A;
  --amber-dim: rgba(212, 150, 10, 0.14);
  --blue: #4A90D9;
  --blue-dim: rgba(74, 144, 217, 0.12);
  --input-bg: rgba(44, 24, 16, 0.03);
  --code-bg: rgba(44, 24, 16, 0.05);
  --sidebar-w: 280px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --blur: blur(12px);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body: 'Lora', 'Charter', 'Georgia', 'Iowan Old Style', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  font-feature-settings: 'liga' 1;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  height: 100vh;
  overflow: hidden;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Paper-grain texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.05;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* Honey accent line at top — gilt edge of a book */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 9999;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.hidden { display: none !important; }

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 10000;
  padding: 8px 16px;
  background: var(--accent);
  color: var(--fg);
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: top 0.15s;
}
.skip-link:focus { top: 8px; }

/* ============================================================
   Auth Screen
   ============================================================ */

.screen { height: 100vh; position: relative; z-index: 1; }

.auth-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 16px;
}

.auth-logo {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #E8A820, #D09018);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-tagline {
  color: var(--fg-secondary);
  font-size: 1.1rem;
}

.auth-btn {
  margin-top: 24px;
  padding: 14px 40px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--fg);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.auth-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.auth-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.auth-note {
  margin-top: 32px;
  color: var(--fg-dim);
  font-size: 0.85rem;
  max-width: 360px;
  text-align: center;
  line-height: 1.5;
}

.value-props {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 380px;
  margin: 8px 0 8px;
  text-align: left;
}

.value-prop {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.value-prop-icon {
  font-size: 20px;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
}

.value-prop strong {
  display: block;
  font-size: 14px;
  margin-bottom: 2px;
}

.value-prop span {
  font-size: 13px;
  color: var(--fg-secondary);
  line-height: 1.4;
}

/* ============================================================
   App Layout — Two-column desktop
   ============================================================ */

.app-layout {
  display: flex;
  height: 100vh;
  position: relative;
  z-index: 1;
}

/* ============================================================
   Sidebar
   ============================================================ */

.sidebar {
  width: var(--sidebar-w);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #1E4063 0%, #152E48 100%);
  border-right: none;
  flex-shrink: 0;
  overflow: hidden;
  color: #E8E4DE;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-brand h1 {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, #E8A820, #D09018);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.new-chat-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--fg-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 18px;
}

.new-chat-btn:hover {
  color: var(--fg);
  border-color: var(--border-hover);
  background: var(--accent-dim);
}

.new-chat-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Sidebar sections */
.sidebar-section {
  padding: 12px;
  overflow-y: auto;
  flex: 1;
}

.sidebar-section-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 8px 8px;
}

.session-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.session-item {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--fg-secondary);
  transition: var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border: none;
  background: none;
  text-align: left;
  width: 100%;
  display: block;
}

.session-item:hover {
  background: rgba(56, 46, 37, 0.05);
  color: var(--fg);
}

.session-item.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.session-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Sidebar nav links */
.sidebar-nav {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--fg-secondary);
  transition: var(--transition);
  border: none;
  background: none;
  text-align: left;
  width: 100%;
  position: relative;
}

.sidebar-nav-item:hover {
  background: rgba(56, 46, 37, 0.05);
  color: var(--fg);
}

.sidebar-nav-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.sidebar-nav-item .nav-icon {
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-nav-item .status-dot {
  position: absolute;
  right: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
}

/* Sidebar footer links */
.sidebar-footer {
  padding: 8px 12px 0;
}

.sidebar-footer-link {
  display: block;
  width: 100%;
  padding: 6px 12px;
  background: none;
  border: none;
  color: var(--fg-dim);
  font-size: 12px;
  cursor: pointer;
  text-align: left;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.sidebar-footer-link:hover {
  color: var(--fg-secondary);
  background: var(--surface-1);
}

.sidebar .sidebar-footer-link {
  color: rgba(255, 255, 255, 0.4);
}

.sidebar .sidebar-footer-link:hover {
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.06);
}

/* Sidebar user */
.sidebar-user {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: 11px;
  color: var(--fg-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.signout-btn {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--fg-dim);
  font-size: 11px;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.signout-btn:hover {
  color: var(--red);
  border-color: var(--red);
}

.signout-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Sidebar ocean-dark overrides */
.sidebar .sidebar-header { border-bottom-color: rgba(255, 255, 255, 0.1); }
.sidebar .sidebar-section-label { color: rgba(255, 255, 255, 0.4); }
.sidebar .new-chat-btn { color: rgba(255, 255, 255, 0.6); border-color: rgba(255, 255, 255, 0.15); }
.sidebar .new-chat-btn:hover { color: #E8E4DE; border-color: rgba(255, 255, 255, 0.25); background: rgba(255, 255, 255, 0.08); }
.sidebar .session-item { color: rgba(255, 255, 255, 0.6); }
.sidebar .session-item:hover { background: rgba(255, 255, 255, 0.06); color: #E8E4DE; }
.sidebar .session-item.active { background: rgba(232, 168, 32, 0.18); color: #E8A820; }
.sidebar .sidebar-nav { border-top-color: rgba(255, 255, 255, 0.1); }
.sidebar .sidebar-nav-item { color: rgba(255, 255, 255, 0.6); }
.sidebar .sidebar-nav-item:hover { background: rgba(255, 255, 255, 0.06); color: #E8E4DE; }
.sidebar .sidebar-nav-item .status-dot { background: #E8A820; }
.sidebar .sidebar-user { border-top-color: rgba(255, 255, 255, 0.1); }
.sidebar .user-avatar { background: rgba(232, 168, 32, 0.2); color: #E8A820; }
.sidebar .user-email { color: rgba(255, 255, 255, 0.4); }
.sidebar .signout-btn { color: rgba(255, 255, 255, 0.4); border-color: rgba(255, 255, 255, 0.15); }
.sidebar .signout-btn:hover { color: #C55040; border-color: #C55040; }

/* ============================================================
   Main Content Area
   ============================================================ */

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-width: 0;
  box-shadow: inset 2px 0 8px rgba(56, 46, 37, 0.04);
}

/* ============================================================
   Chat Messages
   ============================================================ */

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  scroll-behavior: smooth;
}

.welcome-msg {
  text-align: center;
  padding: 120px 20px 40px;
  animation: fadeIn 0.5s ease;
}

.welcome-msg h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.welcome-msg p {
  color: var(--fg-secondary);
  margin-bottom: 32px;
}

.suggestions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 500px;
  margin: 0 auto;
}

.suggestion {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-1);
  color: var(--fg);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(56, 46, 37, 0.06);
}

.suggestion:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.suggestion:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Messages */
.msg {
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  animation: slideIn 0.2s ease;
}

.msg-user {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 0 8px;
}

.msg-agent {
  padding: 8px 0 16px;
}

.msg-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.msg-user .msg-avatar {
  background: var(--accent-dim);
  color: var(--accent);
}

.msg-agent .msg-avatar {
  background: var(--blue-dim);
  color: var(--blue);
}

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

.msg-content {
  line-height: 1.7;
  font-size: 15px;
}

.msg-user .msg-content {
  background: var(--surface-2);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

/* Markdown content inside messages */
.msg-content p { margin: 0.5em 0; }
.msg-content p:first-child { margin-top: 0; }
.msg-content p:last-child { margin-bottom: 0; }
.msg-content code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
  font-family: var(--font-mono);
}
.msg-content pre {
  background: var(--code-bg);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 12px 0;
  border: 1px solid var(--border);
}
.msg-content pre code {
  background: none;
  padding: 0;
  font-size: 13px;
  line-height: 1.5;
}
.msg-content a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.msg-content a:hover { color: #3A7BC8; }
.msg-content ul, .msg-content ol { padding-left: 1.5em; margin: 0.5em 0; }
.msg-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1em;
  color: var(--fg-secondary);
  margin: 0.8em 0;
}
.msg-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 0.8em 0;
  font-size: 14px;
}
.msg-content th, .msg-content td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}
.msg-content th {
  background: var(--code-bg);
  font-weight: 600;
}
.msg-content h1, .msg-content h2, .msg-content h3 {
  margin-top: 1em;
  margin-bottom: 0.4em;
  font-weight: 600;
}
.msg-content h1 { font-size: 1.4em; }
.msg-content h2 { font-size: 1.2em; }
.msg-content h3 { font-size: 1.05em; }

/* Tool call cards */
.tool-call-card {
  background: var(--surface-1);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin: 8px 0;
  overflow: hidden;
  transition: var(--transition);
}

.tool-call-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 13px;
  color: var(--fg-secondary);
  transition: var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.tool-call-header:hover { color: var(--fg); }

.tool-call-header:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.tool-call-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.tool-call-icon.slack { background: #4a154b; color: white; }
.tool-call-icon.drive { background: #0f9d58; color: white; }
.tool-call-icon.confluence { background: #1868db; color: white; }
.tool-call-icon.jira { background: #0052cc; color: white; }
.tool-call-icon.artifact { background: var(--accent-dim); color: var(--accent); }

.tool-call-query {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tool-call-status {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 100px;
  flex-shrink: 0;
}

.tool-call-status.searching {
  background: var(--blue-dim);
  color: var(--blue);
}

.tool-call-status.done {
  background: var(--green-dim);
  color: var(--green);
}

.tool-call-status.error {
  background: var(--red-dim);
  color: var(--red);
}

.tool-call-status.credential {
  background: var(--amber-dim);
  color: var(--amber);
}

.tool-call-chevron {
  transition: transform 0.15s ease;
  color: var(--fg-dim);
  flex-shrink: 0;
}

.tool-call-card[aria-expanded="true"] .tool-call-chevron {
  transform: rotate(90deg);
}

.tool-call-body {
  border-top: 1px solid var(--border);
  padding: 12px 14px;
  font-size: 13px;
  color: var(--fg-secondary);
  line-height: 1.5;
  max-height: 200px;
  overflow-y: auto;
  display: none;
}

.tool-call-card[aria-expanded="true"] .tool-call-body {
  display: block;
  animation: slideDown 0.15s ease;
}

.tool-call-section {
  margin-bottom: 8px;
}

.tool-call-section:last-child {
  margin-bottom: 0;
}

.tool-call-section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-dim);
  margin-bottom: 4px;
  font-weight: 600;
}

.tool-call-data {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 200px;
  overflow-y: auto;
}

.tool-call-output {
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: 8px;
}

.tool-call-output:empty {
  display: none;
}

.status-pulse {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
  margin-right: 4px;
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

/* Thinking indicator */
.thinking-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin: 8px 0;
  overflow: hidden;
  transition: var(--transition);
}

.thinking-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 13px;
  color: var(--fg-dim);
  font-style: italic;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: var(--transition);
}

.thinking-header:hover {
  color: var(--fg-secondary);
}

.thinking-label {
  flex: 1;
}

.thinking-chevron {
  transition: transform 0.15s ease;
  flex-shrink: 0;
}

.thinking-card[aria-expanded="true"] .thinking-chevron {
  transform: rotate(90deg);
}

.thinking-body {
  padding: 8px 14px 12px;
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.5;
  font-style: italic;
  border-top: 1px solid var(--border);
  display: none;
  max-height: 200px;
  overflow-y: auto;
}

.thinking-card[aria-expanded="true"] .thinking-body {
  display: block;
  animation: slideDown 0.15s ease;
}

/* Inline error */
.inline-error {
  background: var(--red-dim);
  border: 1px solid var(--red);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  margin: 8px 0;
}

.inline-error-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.inline-error-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--red);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.inline-error-msg {
  font-size: 13px;
  color: var(--red);
  font-weight: 500;
}

.inline-error-detail {
  margin-top: 6px;
  padding-left: 28px;
  font-size: 12px;
  color: var(--fg-secondary);
  font-family: var(--font-mono);
}

/* Credential CTA — warm prompt to connect a service */
.credential-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--amber-dim);
  border: 1px solid var(--amber);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin: 8px 0;
}

.credential-cta-body {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.credential-cta-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--amber);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.credential-cta-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.credential-cta-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--fg);
}

.credential-cta-desc {
  font-size: 12px;
  color: var(--fg-secondary);
  line-height: 1.4;
}

.credential-cta-btn {
  flex-shrink: 0;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--amber);
  background: var(--amber);
  color: white;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
  white-space: nowrap;
}

.credential-cta-btn:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

@media (max-width: 600px) {
  .credential-cta {
    flex-direction: column;
    align-items: stretch;
  }
  .credential-cta-btn {
    text-align: center;
  }
}

/* Chat header bar */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 4px 12px;
  min-height: 36px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.activity-toggle-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  cursor: pointer;
  color: var(--fg-dim);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
}

.activity-toggle-btn:hover {
  color: var(--fg-secondary);
  border-color: var(--border);
}

.activity-toggle-btn.active {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-dim);
}

/* Chat body layout — messages + optional activity panel side-by-side */
.chat-body-wrapper {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.chat-messages-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

#chatView {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Activity log panel */
.activity-panel {
  width: 0;
  overflow: hidden;
  border-left: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  transition: width 0.2s ease;
  flex-shrink: 0;
}

.activity-panel.open {
  width: 320px;
}

.activity-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.activity-panel-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-secondary);
}

.activity-panel-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--fg-dim);
  font-size: 18px;
  padding: 0 4px;
  line-height: 1;
}

.activity-panel-close:hover {
  color: var(--fg);
}

.activity-log {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 11px;
}

.activity-entry {
  display: flex;
  gap: 8px;
  padding: 3px 12px;
  line-height: 1.5;
  border-bottom: 1px solid var(--surface-1);
}

.activity-entry:hover {
  background: var(--surface-1);
}

.activity-time {
  color: var(--fg-dim);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.activity-type {
  font-weight: 600;
  flex-shrink: 0;
  min-width: 64px;
}

.activity-thinking .activity-type { color: var(--fg-dim); }
.activity-tool_start .activity-type { color: var(--blue); }
.activity-tool_result .activity-type { color: var(--green); }
.activity-token .activity-type { color: var(--fg-secondary); }
.activity-error .activity-type { color: var(--red); }
.activity-error { background: var(--red-dim); }
.activity-credential_missing .activity-type { color: var(--amber); }
.activity-credential_missing { background: var(--amber-dim); }

.activity-summary {
  color: var(--fg-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

/* Artifact inline card */
.artifact-card {
  background: var(--surface-1);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}

.artifact-card:hover {
  border-color: var(--accent);
}

.artifact-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.artifact-card-info {
  flex: 1;
  min-width: 0;
}

.artifact-card-title {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.artifact-card-url {
  font-size: 12px;
  color: var(--fg-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.artifact-card-link {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  flex-shrink: 0;
}

.artifact-card-link:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}

/* Typing indicator */
.typing {
  display: inline-flex;
  gap: 4px;
  padding: 12px 0;
}

.typing span {
  width: 6px;
  height: 6px;
  background: var(--fg-dim);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out;
}

.typing span:nth-child(2) { animation-delay: 0.16s; }
.typing span:nth-child(3) { animation-delay: 0.32s; }

/* Streaming cursor */
.streaming-cursor::after {
  content: '▊';
  color: var(--accent);
  animation: blink 0.8s step-end infinite;
  margin-left: 2px;
}

/* ============================================================
   Input Area
   ============================================================ */

.input-area {
  padding: 16px 24px 24px;
  background: linear-gradient(180deg, transparent 0%, var(--bg) 20%);
  position: relative;
}

.input-row {
  display: flex;
  gap: 8px;
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
  align-items: flex-end;
  transition: border-color 0.15s;
  box-shadow: 0 1px 4px rgba(56, 46, 37, 0.08);
}

.input-row:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-dim);
}

.input-row textarea {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--fg);
  font-size: 15px;
  font-family: var(--font-body);
  resize: none;
  outline: none;
  line-height: 1.5;
  max-height: 200px;
}

.input-row textarea::placeholder { color: var(--fg-dim); }

.send-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--fg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.send-btn:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}

.send-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}

.send-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.input-hint {
  text-align: center;
  font-size: 11px;
  color: var(--fg-dim);
  margin-top: 8px;
}

.input-hint kbd {
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 10px;
  background: var(--code-bg);
}

/* ============================================================
   Modals
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(56, 46, 37, 0.25);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.15s ease;
}

.modal-content {
  background: var(--surface-3);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  animation: modalIn 0.2s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 17px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--fg-secondary);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.modal-close:hover { color: var(--fg); background: rgba(56, 46, 37, 0.06); }

.modal-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.modal-body {
  padding: 24px;
  font-size: 14px;
  line-height: 1.6;
}

.modal-body ol { padding-left: 1.5em; }
.modal-body li { margin: 8px 0; }
.modal-body code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: var(--font-mono);
}

/* ============================================================
   Command Palette
   ============================================================ */

.palette-overlay {
  position: fixed;
  inset: 0;
  background: rgba(56, 46, 37, 0.2);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  padding-top: 20vh;
  animation: fadeIn 0.1s ease;
}

.palette {
  width: 90%;
  max-width: 480px;
  background: var(--surface-3);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  animation: modalIn 0.15s ease;
  max-height: 400px;
  display: flex;
  flex-direction: column;
}

.palette-input {
  padding: 14px 18px;
  border: none;
  border-bottom: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  font-size: 15px;
  font-family: var(--font-body);
  outline: none;
  width: 100%;
}

.palette-input::placeholder { color: var(--fg-dim); }

.palette-results {
  overflow-y: auto;
  flex: 1;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  cursor: pointer;
  font-size: 14px;
  color: var(--fg-secondary);
  transition: background 0.1s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.palette-item:hover, .palette-item.active {
  background: var(--accent-dim);
  color: var(--fg);
}

.palette-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.palette-item-icon {
  width: 20px;
  text-align: center;
  color: var(--fg-dim);
  flex-shrink: 0;
}

.palette-item-label { flex: 1; }

.palette-item-shortcut {
  font-size: 11px;
  color: var(--fg-dim);
  font-family: var(--font-mono);
}

/* ============================================================
   Onboarding
   ============================================================ */

.onboarding-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

@media (min-width: 769px) {
  .onboarding-overlay {
    left: var(--sidebar-w);
  }
}

.onboarding-card {
  max-width: 540px;
  width: 90%;
  text-align: center;
  animation: modalIn 0.3s ease;
}

.onboard-progress {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.progress-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.2s;
}

.progress-dot.active {
  background: var(--accent);
}

.onboarding-step { display: none; }
.onboarding-step.active { display: block; }

.onboarding-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  background: var(--accent-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.onboarding-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
}

.onboarding-desc {
  color: var(--fg-secondary);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 32px;
}

.onboarding-btn {
  padding: 12px 32px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--fg);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.onboarding-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.onboarding-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.onboarding-skip {
  display: block;
  margin: 16px auto 0;
  background: none;
  border: none;
  color: var(--fg-dim);
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
}

.onboarding-skip:hover { color: var(--fg-secondary); }

/* Connect panels (onboarding + settings) */
.connect-panels {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
  margin-bottom: 24px;
}

.connect-panel {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
}

.connect-panel.connected {
  border-color: var(--green);
  background: var(--green-dim);
}

.connect-panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.connect-panel strong {
  font-size: 15px;
  display: block;
  margin-bottom: 2px;
}

.connect-panel-desc {
  font-size: 12px;
  color: var(--fg-dim);
  display: block;
}

.google-oauth-btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  background: #4285f4;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.google-oauth-btn:hover:not(:disabled) {
  background: #3367d6;
  transform: translateY(-1px);
}

.google-oauth-btn:disabled {
  opacity: 0.7;
  cursor: default;
}

.google-oauth-btn.connected {
  background: var(--green);
}

.connect-checklist {
  margin: 12px 0 0;
  padding-left: 20px;
  font-size: 13px;
  line-height: 1.6;
}

.connect-checklist li {
  margin-bottom: 8px;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  cursor: pointer;
}

.checklist-check {
  margin-top: 3px;
  accent-color: var(--green);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.connect-checklist a {
  color: var(--blue);
  text-decoration: underline;
  font-weight: 500;
}

.connect-checklist a:hover {
  color: var(--accent);
}

.connect-panel-note {
  font-size: 11px;
  color: var(--fg-dim);
  margin: 12px 0 0;
  line-height: 1.5;
}

.connect-error {
  font-size: 12px;
  color: var(--red);
  margin: 8px 0 0;
}

/* Cookie service status rows (settings view) */
.service-card-icon {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.cookie-svc-statuses {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cookie-svc-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--surface-1);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.cookie-svc-name {
  font-weight: 500;
  min-width: 80px;
}

.settings-panel-card {
  margin-bottom: 0;
}

.connect-howto {
  margin-top: 12px;
  font-size: 13px;
}

.connect-howto summary {
  cursor: pointer;
  color: var(--blue);
  font-weight: 500;
  font-size: 13px;
}

.connect-howto summary:hover {
  color: var(--accent);
}

/* ============================================================
   Artifact Gallery (modal)
   ============================================================ */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.gallery-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: var(--fg);
  display: block;
}

.gallery-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56, 46, 37, 0.1);
}

.gallery-card-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gallery-card-date {
  font-size: 12px;
  color: var(--fg-dim);
}

/* ============================================================
   Settings / Services Panel
   ============================================================ */

.settings-panel {
  padding: 24px;
  max-width: 600px;
  margin: 0 auto;
}

.settings-panel h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.settings-panel .subtitle {
  color: var(--fg-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.settings-service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.settings-service-card {
  background: var(--surface-1);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.settings-service-card .service-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.settings-service-card .svc-status {
  font-size: 12px;
  margin-bottom: 8px;
}

.settings-service-card .svc-status.connected { color: var(--green); }
.settings-service-card .svc-status.disconnected { color: var(--fg-dim); }
.settings-service-card .svc-status.expired { color: var(--amber); }

/* ============================================================
   Auth Groups (cookie bridge vs OAuth)
   ============================================================ */

.auth-group {
  margin-bottom: 24px;
}

.auth-group-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 12px;
}

.auth-group-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-secondary);
}

.auth-group-hint {
  font-size: 12px;
  color: var(--fg-dim);
}

/* Google OAuth card */
.google-oauth-card {
  background: var(--surface-1);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.google-oauth-card.connected {
  border-color: var(--green);
  background: var(--green-dim);
}

.google-oauth-services {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.google-oauth-svc-name {
  font-size: 14px;
  font-weight: 500;
}

.google-oauth-sep {
  font-size: 12px;
  color: var(--fg-dim);
  margin: 0 2px;
}

.google-oauth-status {
  font-size: 12px;
  color: var(--fg-dim);
  margin-bottom: 8px;
}

.google-oauth-card.connected .google-oauth-status {
  color: var(--green);
}

.google-oauth-btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--fg-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}

.google-oauth-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.google-oauth-card.connected .google-oauth-btn {
  border-color: var(--green);
  color: var(--green);
}

/* ============================================================
   Error Banner
   ============================================================ */

.error-banner {
  position: fixed;
  top: 2px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5000;
  padding: 10px 20px;
  background: var(--red-dim);
  border: 1px solid var(--red);
  border-radius: var(--radius-md);
  color: var(--red);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideDown 0.2s ease;
  max-width: 90%;
}

.error-banner.warning {
  background: var(--amber-dim);
  border-color: var(--amber);
  color: var(--amber);
}

.error-banner.offline {
  background: var(--surface-2);
  border-color: var(--fg-dim);
  color: var(--fg-secondary);
}

.error-banner-close {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
  margin-left: 8px;
}

/* ============================================================
   Skeleton Loading UI
   ============================================================ */

.skeleton {
  animation: shimmer 1.5s infinite;
  background: linear-gradient(90deg, var(--surface-1) 25%, var(--surface-2) 50%, var(--surface-1) 75%);
  background-size: 200% 100%;
  border-radius: var(--radius-sm);
}

.skeleton-line {
  height: 14px;
  margin: 8px 0;
}

.skeleton-line.short { width: 60%; }
.skeleton-line.medium { width: 80%; }
.skeleton-line.long { width: 95%; }

.skeleton-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
}

.skeleton-block {
  height: 40px;
  width: 100%;
  margin: 6px 0;
}

/* ============================================================
   Scrollbar
   ============================================================ */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(56, 46, 37, 0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(56, 46, 37, 0.25); }

/* ============================================================
   Animations
   ============================================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

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

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ============================================================
   Accessibility
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

@media (prefers-contrast: more) {
  :root {
    --border: rgba(44, 24, 16, 0.30);
    --fg-secondary: #4A3E32;
    --fg-dim: #6B5B4E;
  }
  .modal-content, .palette, .suggestion, .tool-call-card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: #EDE8DF;
  }
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
   Responsive — Mobile
   ============================================================ */

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -100%;
    z-index: 500;
    transition: left 0.25s ease;
    width: 85%;
    max-width: 320px;
  }

  .sidebar.open {
    left: 0;
    box-shadow: 0 0 60px rgba(56, 46, 37, 0.15);
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(56, 46, 37, 0.2);
    z-index: 499;
    display: none;
  }

  .sidebar-backdrop.open { display: block; }

  .mobile-header {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-bottom: none;
    background: #1B3A5C;
  }

  .hamburger-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
  }

  .hamburger-btn:hover { color: #E8E4DE; }

  .mobile-brand {
    flex: 1;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    background: linear-gradient(135deg, #E8A820, #D09018);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .suggestions {
    max-width: 100%;
  }

  .activity-panel { display: none; }
  .activity-toggle-btn { display: none; }

  .input-area {
    padding: 12px 16px 16px;
  }

  .service-grid, .settings-service-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) {
  .mobile-header { display: none; }
  .sidebar-backdrop { display: none !important; }
}

/* ============================================================
   Empty State
   ============================================================ */

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--fg-dim);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state-text {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--fg-secondary);
}

.empty-state-subtext {
  font-size: 13px;
}

/* Setup modal values */
.setup-values {
  margin: 16px 0;
  padding: 16px;
  background: var(--input-bg);
  border-radius: var(--radius-md);
}

.setup-values label {
  display: block;
  font-size: 11px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
  margin-top: 12px;
}

.setup-values label:first-child { margin-top: 0; }

.setup-values input {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 12px;
}

.copy-btn {
  margin-top: 12px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
}

.copy-btn:hover { border-color: var(--accent); color: var(--accent); }

.setup-note {
  margin-top: 16px;
  color: var(--fg-secondary);
  font-size: 13px;
}

/* Paywall */
.paywall-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  padding: 40px 20px;
}

.paywall-card {
  background: var(--surface-1);
  backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  max-width: 420px;
  width: 100%;
  text-align: center;
}

.paywall-icon {
  font-size: 40px;
  color: var(--accent);
  margin-bottom: 16px;
}

.paywall-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 12px;
}

.paywall-desc {
  color: var(--fg-secondary);
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 24px;
}

.paywall-price {
  margin-bottom: 24px;
}

.paywall-amount {
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
}

.paywall-period {
  font-size: 18px;
  color: var(--fg-secondary);
}

.paywall-features {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  text-align: left;
}

.paywall-features li {
  padding: 8px 0;
  color: var(--fg-primary);
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

.paywall-features li::before {
  content: "✓ ";
  color: var(--accent);
  font-weight: 600;
}

.paywall-btn {
  display: inline-block;
  width: 100%;
  padding: 14px 24px;
  background: var(--accent);
  color: var(--fg);
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.paywall-btn:hover { opacity: 0.9; transform: translateY(-1px); }
.paywall-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.paywall-note {
  margin-top: 16px;
  font-size: 12px;
  color: var(--fg-dim);
}

/* Usage meter */
.usage-info {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}

.usage-label {
  font-size: 11px;
  color: var(--fg-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.usage-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.usage-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Stale service status */
.svc-status.stale {
  color: var(--amber);
  font-size: 13px;
}

.svc-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 4px;
  font-size: 11px;
  color: var(--fg-dim);
}

.svc-age.stale {
  color: var(--amber);
}

.svc-count {
  color: var(--fg-dim);
}

/* Workspace config */
.workspace-config-section {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.workspace-config-section h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.workspace-fields {
  margin: 16px 0;
}

.workspace-fields label {
  display: block;
  font-size: 11px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
  margin-top: 12px;
}

.workspace-fields label:first-child { margin-top: 0; }

.workspace-fields input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--fg);
  font-size: 14px;
  transition: var(--transition);
}

.workspace-fields input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.workspace-fields input::placeholder {
  color: var(--fg-dim);
}

.workspace-save-btn {
  padding: 8px 20px;
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
}

.workspace-save-btn:hover {
  background: var(--accent-dim);
}

.workspace-save-status {
  margin-top: 8px;
  font-size: 13px;
  min-height: 20px;
}

.workspace-save-status.success { color: var(--green); }
.workspace-save-status.error { color: var(--red); }

/* Manage subscription button */
.manage-sub-btn {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 6px 0;
  background: none;
  border: none;
  color: var(--fg-dim);
  font-size: 11px;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.manage-sub-btn:hover {
  color: var(--accent);
}

/* Usage meter warning/critical states */
.usage-fill.warning {
  background: var(--amber);
}

.usage-fill.critical {
  background: var(--red);
}

/* Research tool indicator in chat */
.tool-call-icon.research {
  background: linear-gradient(135deg, var(--accent), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

/* ============================================================
   Dark Mode
   ============================================================ */

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a2e;
    --surface-1: rgba(255, 255, 255, 0.06);
    --surface-2: rgba(255, 255, 255, 0.09);
    --surface-3: rgba(255, 255, 255, 0.12);
    --border: rgba(255, 255, 255, 0.12);
    --border-hover: rgba(255, 255, 255, 0.22);
    --fg: #e8e4de;
    --fg-secondary: #a8a0a0;
    --fg-dim: #706868;
    --input-bg: rgba(255, 255, 255, 0.05);
    --code-bg: rgba(255, 255, 255, 0.08);
  }

  body::before { opacity: 0.03; }
  body::after { background: linear-gradient(90deg, transparent, var(--accent), transparent); }

  .input-row {
    background: #222240;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  }

  .auth-container { color: var(--fg); }

  .sidebar {
    background: linear-gradient(180deg, #111128 0%, #0d0d20 100%);
  }

  .mobile-header { background: #111128; }

  .onboarding-overlay { background: var(--bg); }
}

/* Live region for screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}