/* Studio — warm chat-first UI (not e-commerce / not generic SaaS gray) */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=Newsreader:ital,opsz,wght@8..60,500;8..60,600&display=swap');

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

:root,
html[data-theme='light'] {
  --canvas: #f7f5f2;
  --canvas-elevated: #fffcf8;
  --inset: #efeae3;
  --border: #e3ddd4;
  --border-strong: #d4cdc3;
  --fg: #1c1917;
  --fg-muted: #6b6560;
  --fg-subtle: #8a837c;
  --action: #1c1917;
  --action-hover: #292524;
  --action-fg: #faf8f5;
  --link: #9a3412;
  --link-hover: #7c2d12;
  --accent-soft: rgba(154, 52, 18, 0.08);
  --glow: rgba(154, 52, 18, 0.07);
  --success: #3d6b4f;
  --danger: #b42318;
  --btn-bg: rgba(28, 25, 23, 0.04);
  --btn-hover: rgba(28, 25, 23, 0.08);
  --shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.05);
  --shadow-md: 0 12px 40px rgba(28, 25, 23, 0.1);
  --shadow-composer: 0 2px 16px rgba(28, 25, 23, 0.08), 0 0 0 1px rgba(28, 25, 23, 0.04);
  --overlay: rgba(28, 25, 23, 0.45);
  --focus: rgba(154, 52, 18, 0.22);
  --sidebar-w: 272px;

  /* Legacy aliases (admin / account pages) */
  --gh-canvas: var(--canvas-elevated);
  --gh-canvas-subtle: var(--canvas);
  --gh-inset: var(--inset);
  --gh-border: var(--border);
  --gh-border-muted: var(--border-strong);
  --gh-fg: var(--fg);
  --gh-fg-muted: var(--fg-muted);
  --gh-fg-subtle: var(--fg-subtle);
  --gh-accent: var(--link);
  --gh-accent-emphasis: var(--link-hover);
  --gh-accent-fg: var(--action-fg);
  --gh-success: var(--success);
  --gh-success-emphasis: var(--action);
  --gh-danger: var(--danger);
  --gh-btn-bg: var(--btn-bg);
  --gh-btn-hover: var(--btn-hover);
  --gh-shadow-sm: var(--shadow-sm);
  --gh-shadow: var(--shadow-sm);
  --gh-shadow-md: var(--shadow-md);
  --gh-overlay: var(--overlay);
  --gh-focus: var(--focus);
  --gh-sidebar-w: var(--sidebar-w);

  --bg: var(--canvas);
  --bg-secondary: var(--inset);
  --surface-raised: var(--canvas-elevated);
  --sidebar: var(--canvas);
  --sidebar-hover: var(--btn-hover);
  --sidebar-active: rgba(28, 25, 23, 0.07);
  --text: var(--fg);
  --text-secondary: var(--fg-muted);
  --text-muted: var(--fg-subtle);
  --bubble-user: #ebe4d8;
  --bubble-assistant: transparent;
  --composer-bg: var(--canvas-elevated);
  --composer-border: var(--border);
  --composer-shadow: var(--shadow-composer);
  --send-bg: var(--action);
  --send-fg: var(--action-fg);
  --send-disabled: var(--inset);
  --gpt-avatar-bg: var(--action);
  --gpt-avatar-fg: var(--action-fg);
  --thinking-dot: var(--fg-muted);
  --accent: var(--success);
  --accent-muted: var(--accent-soft);
  --code-bg: var(--inset);
  --code-header: var(--btn-hover);
  --shadow-menu: var(--shadow-md);
  --anon-bg: var(--accent-soft);
  --anon-border: var(--border);
  --toast-bg: var(--action);
  --toast-fg: var(--action-fg);
  --btn-hover: var(--action-hover);
  --focus-ring: var(--focus);
  --error-bg: #fef2f0;
  --error-border: rgba(180, 35, 24, 0.25);
}

html[data-theme='dark'] {
  --canvas: #121110;
  --canvas-elevated: #1a1917;
  --inset: #232120;
  --border: #342f2c;
  --border-strong: #433c38;
  --fg: #ece8e3;
  --fg-muted: #a8a29e;
  --fg-subtle: #78716c;
  --action: #f5f2ed;
  --action-hover: #ffffff;
  --action-fg: #121110;
  --link: #e8a87c;
  --link-hover: #f0c4a0;
  --accent-soft: rgba(232, 168, 124, 0.1);
  --glow: rgba(232, 168, 124, 0.12);
  --success: #6ee7a0;
  --danger: #f87171;
  --btn-bg: rgba(255, 255, 255, 0.05);
  --btn-hover: rgba(255, 255, 255, 0.09);
  --shadow-sm: 0 1px 0 rgba(0, 0, 0, 0.35);
  --shadow-md: 0 16px 48px rgba(0, 0, 0, 0.55);
  --shadow-composer: 0 4px 24px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.06);
  --overlay: rgba(0, 0, 0, 0.62);
  --focus: rgba(232, 168, 124, 0.28);

  --gh-canvas: var(--canvas-elevated);
  --gh-canvas-subtle: var(--canvas);
  --gh-inset: var(--inset);
  --gh-border: var(--border);
  --gh-border-muted: var(--border-strong);
  --gh-fg: var(--fg);
  --gh-fg-muted: var(--fg-muted);
  --gh-fg-subtle: var(--fg-subtle);
  --gh-accent: var(--link);
  --gh-accent-emphasis: var(--link-hover);
  --gh-success: var(--success);
  --gh-success-emphasis: var(--action);
  --gh-danger: var(--danger);
  --gh-btn-bg: var(--btn-bg);
  --gh-btn-hover: var(--btn-hover);
  --gh-shadow-sm: var(--shadow-sm);
  --gh-shadow: var(--shadow-sm);
  --gh-shadow-md: var(--shadow-md);
  --gh-overlay: var(--overlay);
  --gh-focus: var(--focus);

  --bg: var(--canvas);
  --bg-secondary: var(--inset);
  --surface-raised: var(--canvas-elevated);
  --sidebar: #0f0e0d;
  --sidebar-hover: var(--btn-hover);
  --sidebar-active: rgba(255, 255, 255, 0.08);
  --bubble-user: #2a2622;
  --bubble-assistant: transparent;
  --composer-bg: var(--canvas-elevated);
  --composer-border: var(--border-strong);
  --composer-shadow: var(--shadow-composer);
  --send-bg: var(--action);
  --send-fg: var(--action-fg);
  --send-disabled: var(--inset);
  --gpt-avatar-bg: var(--canvas-elevated);
  --gpt-avatar-fg: var(--fg);
  --anon-bg: var(--accent-soft);
  --anon-border: var(--border);
  --toast-bg: var(--canvas-elevated);
  --toast-fg: var(--fg);
  --btn-hover: var(--action-hover);
  --error-bg: rgba(248, 113, 113, 0.1);
  --error-border: rgba(248, 113, 113, 0.35);
}

:root {
  --content-max: 42rem;
  --font: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.15s;
  --sidebar-dur: 0.24s;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-pill: 999px;
}

html {
  height: 100%;
  margin: 0;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  touch-action: manipulation;
}
/* Standalone account pages (dashboard, plans, api, docs, admin, auth) are
   normal document-flow pages and must scroll — opt them out of the chat app's
   viewport lock. */
body.page-body {
  overflow-y: auto;
  height: auto;
  min-height: 100%;
  scroll-behavior: smooth;
}
body.page-body.modal-open,
body.mobile-sidebar-open {
  overflow: hidden;
}
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }

/* Layout */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 100dvh;
  height: 100dvh;
  width: 100%;
  background: var(--bg);
  transition: grid-template-columns var(--sidebar-dur) var(--ease);
}
.app.sidebar-collapsed { grid-template-columns: 0 1fr; }

/* Theme toggle icons */
.theme-toggle .icon-moon { display: none; }
html[data-theme='dark'] .theme-toggle .icon-sun { display: none; }
html[data-theme='dark'] .theme-toggle .icon-moon { display: block; }
.theme-toggle svg { display: block; }

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--sidebar-dur) var(--ease),
    visibility 0s linear var(--sidebar-dur);
}
.app.sidebar-open .sidebar-overlay {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition:
    opacity var(--sidebar-dur) var(--ease),
    visibility 0s;
}

/* Sidebar */
.sidebar {
  background: var(--sidebar);
  display: flex;
  flex-direction: column;
  height: 100%;
  border-right: 1px solid var(--border);
  z-index: 50;
  min-width: 0;
  overflow: hidden;
  transition:
    transform var(--sidebar-dur) var(--ease),
    border-color var(--sidebar-dur) var(--ease);
}
.app.sidebar-collapsed .sidebar {
  border-right-color: transparent;
  pointer-events: none;
}

.sidebar-top-row {
  display: flex;
  align-items: center;
  padding: 14px 14px 10px;
}

.sidebar-nav {
  padding: 8px 8px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  text-align: left;
  border: 1px solid transparent;
  transition: background var(--dur), border-color var(--dur);
}
.nav-item:hover:not(:disabled) { background: var(--sidebar-hover); }
.nav-item-muted {
  color: var(--text-muted);
  opacity: .65;
  cursor: not-allowed;
}

.sidebar-search-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  margin: 2px 0;
  border-radius: var(--radius-md);
  transition: background var(--dur);
}
.sidebar-search-wrap:focus-within { background: var(--sidebar-hover); }
.sidebar-search-wrap .search-icon {
  flex-shrink: 0;
  color: var(--text-secondary);
}
.sidebar-search {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--text);
  min-width: 0;
}
.sidebar-search::placeholder { color: var(--text-muted); }

.recents-section {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  margin-top: 8px;
  padding: 0 6px;
}
.recents-label {
  padding: 12px 12px 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.chat-list {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}
.history-empty {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.history-group-label {
  padding: 10px 12px 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-muted);
}

.chat-item {
  display: flex;
  align-items: center;
  gap: 4px;
  width: 100%;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text);
  text-align: left;
  border: 1px solid transparent;
  transition: background var(--dur), border-color var(--dur);
}
.chat-item:hover { background: var(--sidebar-hover); }
.chat-item.active {
  background: var(--sidebar-active);
  border-color: var(--border);
  font-weight: 600;
}
.chat-item-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chat-item-actions { opacity: 0; transition: opacity var(--dur); }
.chat-item:hover .chat-item-actions { opacity: 1; }
.chat-item-action {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
  color: var(--text-muted);
}
.chat-item-action:hover { background: rgba(0,0,0,.06); color: var(--text); }

.sidebar-bottom {
  border-top: 1px solid var(--border);
  padding: 10px 8px 12px;
  margin-top: auto;
}

.profile-card {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 12px;
  transition: background var(--dur);
}
.profile-card:hover { background: var(--sidebar-hover); }
.profile-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--avatar-bg, #455a64);
  color: var(--avatar-fg, #fff);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .02em;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.profile-info { flex: 1; min-width: 0; text-align: left; }
.profile-name {
  display: block;
  font-size: 14px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.profile-tier {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
}
.profile-action {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  flex-shrink: 0;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  transition: color var(--dur), background var(--dur);
}
.profile-action:hover { color: var(--text); background: var(--sidebar-hover); }

.upgrade-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  transition: background var(--dur);
}
.upgrade-card:hover { background: var(--sidebar-hover); }
.upgrade-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--action);
  color: var(--action-fg);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Main */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  background-image: radial-gradient(ellipse 90% 55% at 50% -8%, var(--glow), transparent 58%);
  position: relative;
  isolation: isolate;
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  min-height: 52px;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  border-bottom: 1px solid transparent;
  background: transparent;
}
.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}

.icon-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: background var(--dur), border-color var(--dur), color var(--dur);
}
.icon-btn:hover {
  background: var(--gh-btn-hover);
  border-color: var(--border);
  color: var(--text);
}

.model-picker {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  border: 1px solid transparent;
  transition: background var(--dur), border-color var(--dur);
}
.model-picker:hover {
  background: var(--gh-btn-hover);
  border-color: var(--border);
}
.model-picker-brand { line-height: 1; }

.model-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 280px;
  background: var(--gh-canvas);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 4px;
  box-shadow: var(--shadow-menu);
  z-index: 100;
}
.model-option {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  text-align: left;
  transition: background var(--dur);
}
.model-option:hover { background: var(--gh-btn-hover); }
.model-option.selected { background: var(--sidebar-active); }
.model-option .model-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
}
.model-option .model-desc { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.model-option .check { margin-left: auto; opacity: 0; color: var(--gh-accent); }
.model-option.selected .check { opacity: 1; color: var(--link); }

.save-status { font-size: 12px; color: var(--text-muted); }
.save-status.saved { color: var(--success); }

.auth-area { display: flex; align-items: center; gap: 8px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  border: 1px solid var(--border);
  background: var(--gh-btn-bg);
  color: var(--text);
  box-shadow: var(--gh-shadow-sm);
  transition: background var(--dur), border-color var(--dur), box-shadow var(--dur);
}
.btn:hover {
  background: var(--gh-btn-hover);
  border-color: var(--border-strong);
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  color: var(--text);
}
.btn-ghost:hover {
  background: var(--gh-btn-hover);
  border-color: var(--border);
}
.btn-primary {
  background: var(--action);
  border-color: transparent;
  color: var(--action-fg);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--action-hover);
}

.top-user .user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--avatar-bg, #455a64);
  color: var(--avatar-fg, #fff);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .02em;
  display: flex; align-items: center; justify-content: center;
}

/* User dropdown menu */
.user-menu-wrap { position: relative; }
.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: var(--shadow-menu);
  z-index: 120;
}
.user-menu-head {
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.user-menu-name {
  display: block;
  font-size: 14px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-menu-email {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 14px;
  color: var(--text);
  text-align: left;
  transition: background var(--dur);
}
.user-menu-item:hover { background: var(--sidebar-hover); }
.user-menu-item svg { flex-shrink: 0; color: var(--text-secondary); }

/* Dashboard / payment modal */
.dashboard-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 300;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 16px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s var(--ease), visibility 0s linear 0.22s;
}
.dashboard-overlay.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.22s var(--ease), visibility 0s;
}
.dashboard-modal {
  width: 100%;
  max-width: 640px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-menu);
  overflow: hidden;
  transform: translateY(16px) scale(0.98);
  opacity: 0;
  transition: transform 0.28s var(--ease), opacity 0.22s var(--ease);
}
.dashboard-overlay.is-open .dashboard-modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}
@media (prefers-reduced-motion: reduce) {
  .dashboard-overlay,
  .dashboard-modal {
    transition: none;
  }
  .dashboard-overlay.is-open .dashboard-modal {
    transform: none;
    opacity: 1;
  }
}
.dashboard-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.dashboard-head h2 { margin: 0; font-size: 18px; font-weight: 600; }
.dashboard-body { padding: 20px; }
.dashboard-loading, .dashboard-error {
  padding: 40px 0;
  text-align: center;
  color: var(--text-muted);
}
.dashboard-error { color: var(--danger); }

.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-num { font-size: 26px; font-weight: 700; letter-spacing: -.02em; }
.stat-label { font-size: 12px; color: var(--text-muted); }

.chart-block { margin-top: 20px; }
.chart-block h3 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
}
.chart-sub { font-size: 12px; font-weight: 400; color: var(--text-muted); margin-left: 6px; }
.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 160px;
  padding: 8px 4px 0;
}
.bar-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  height: 100%;
}
.bar-track {
  position: relative;
  width: 100%;
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.bar-fill {
  width: 70%;
  min-height: 2px;
  background: linear-gradient(180deg, var(--link), var(--action));
  border-radius: 6px 6px 0 0;
  transition: height .3s var(--ease);
}
.bar-count {
  position: absolute;
  top: -18px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
}
.bar-label {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

@media (max-width: 560px) {
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .bar-label { font-size: 10px; }
}

.anon-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text);
  background: var(--anon-bg);
  border-bottom: 1px solid var(--anon-border);
  position: relative;
  z-index: 2;
}
.anon-banner a {
  font-weight: 600;
  color: var(--link);
  text-decoration: none;
}
.anon-banner a:hover { text-decoration: underline; }

/* Chat scroll */
.chat-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
  position: relative;
  z-index: 1;
}

/* Welcome */
.welcome {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px 200px;
}
.welcome-inner {
  max-width: 26rem;
  text-align: center;
}
.welcome-mark {
  width: 44px;
  height: 44px;
  margin: 0 auto 20px;
  border-radius: 14px;
  background: var(--action);
  color: var(--action-fg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.welcome-mark svg { display: block; }
.welcome-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.125rem);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text);
  margin: 0;
}
.welcome-sub {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 22rem;
  margin-left: auto;
  margin-right: auto;
}

/* Messages — AI left, user right */
.messages {
  padding: 20px 20px 32px;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-sizing: border-box;
}
.msg-row {
  width: 100%;
  display: flex;
  animation: msgIn .25s var(--ease) both;
  background: transparent;
}
.msg-row.assistant { justify-content: flex-start; }
.msg-row.user { justify-content: flex-end; }

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

.msg-inner {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  max-width: min(88%, 36rem);
  min-width: 0;
}
.msg-row.assistant .msg-inner { flex-direction: row; }
.msg-row.user .msg-inner { flex-direction: row; }

.msg-avatar {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.msg-row.user .msg-avatar {
  border-radius: 50%;
  background: var(--avatar-bg, #455a64);
  color: var(--avatar-fg, #fff);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .02em;
}

.msg-avatar-gpt {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--gpt-avatar-bg);
  color: var(--gpt-avatar-fg);
  border: 1px solid var(--border-strong);
  flex-shrink: 0;
}
.msg-avatar-gpt svg {
  display: block;
  width: 18px;
  height: 18px;
}

.msg-content {
  min-width: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  padding: 2px 0;
}
.msg-row.assistant .msg-content {
  padding-right: 8px;
}
.msg-row.user .msg-content {
  background: var(--bubble-user);
  border: none;
  border-radius: var(--radius-lg);
  padding: 11px 15px;
  white-space: pre-wrap;
  word-break: break-word;
  text-align: left;
  max-width: 100%;
}
.msg-row.user .msg-content:has(.msg-images:only-child),
.msg-row.user .msg-content:has(.msg-images:last-child) {
  padding: 8px;
}

/* Typing indicator — three bouncing dots (real ChatGPT) */
.msg-thinking {
  display: flex;
  align-items: center;
  gap: 5px;
  min-height: 28px;
  padding: 6px 0;
}
.msg-thinking span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--thinking-dot);
  opacity: .45;
  animation: gptThinking 1.4s ease-in-out infinite;
}
.msg-thinking span:nth-child(1) { animation-delay: 0s; }
.msg-thinking span:nth-child(2) { animation-delay: .2s; }
.msg-thinking span:nth-child(3) { animation-delay: .4s; }

@keyframes gptThinking {
  0%, 60%, 100% { transform: translateY(0); opacity: .35; }
  30% { transform: translateY(-5px); opacity: 1; }
}

.msg-content code {
  font-family: var(--mono);
  font-size: .9em;
  background: var(--code-bg);
  padding: 2px 5px;
  border-radius: 4px;
}
.msg-content pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin: .75em 0;
}
.msg-content pre > code {
  display: block;
  padding: 14px;
  overflow-x: auto;
  background: transparent;
}
.code-block {
  margin: .75em 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--code-bg);
}
.code-block-header {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-muted);
  background: var(--code-header);
  border-bottom: 1px solid var(--border);
}
.code-copy-btn {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--text-secondary);
}
.code-copy-btn:hover { background: rgba(0,0,0,.06); }
.msg-md > :first-child { margin-top: 0; }
.msg-md > :last-child { margin-bottom: 0; }
.msg-content a { color: var(--link); }
.msg-content blockquote {
  border-left: 3px solid var(--border-strong);
  padding-left: 14px;
  color: var(--text-secondary);
}
.msg-toolbar { margin-top: 8px; opacity: 0; transition: opacity var(--dur); }
.msg-row:hover .msg-toolbar { opacity: 1; }
.msg-tool-btn {
  font-size: 12px;
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 6px;
}
.msg-tool-btn:hover { background: var(--sidebar-hover); color: var(--text); }

.scroll-bottom-btn {
  position: absolute;
  bottom: 200px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: var(--composer-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

/* Composer */
.composer-area {
  flex-shrink: 0;
  padding: 0 20px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 2;
}

.composer-card {
  width: 100%;
  max-width: 40rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px 10px 10px;
  background: var(--composer-bg);
  border: 1px solid var(--composer-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--composer-shadow);
  transition: border-color var(--dur), box-shadow var(--dur), transform var(--dur);
}
.composer-card.drag-over {
  border-color: var(--link);
  box-shadow: var(--composer-shadow), 0 0 0 3px var(--focus);
}
.composer-card:focus-within {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-composer), 0 0 0 3px var(--focus);
}
.composer-row {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  width: 100%;
}

/* Image attachments preview */
.composer-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px 6px 2px 8px;
}
.composer-thumb {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--code-bg);
  flex-shrink: 0;
}
.composer-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.composer-thumb-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0,0,0,.65);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  line-height: 1;
  transition: background var(--dur);
}
.composer-thumb-remove:hover { background: rgba(0,0,0,.85); }

/* Image bubbles inside chat messages */
.msg-images {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}
.msg-images img {
  max-width: 260px;
  max-height: 260px;
  border-radius: 12px;
  border: 1px solid var(--border);
  display: block;
}

.composer-plus, .composer-mic {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: background var(--dur), border-color var(--dur);
}
.composer-plus:hover:not(:disabled),
.composer-mic:hover:not(:disabled) {
  background: var(--gh-btn-hover);
  border-color: var(--border);
}
.composer-plus:disabled, .composer-mic:disabled { opacity: .4; cursor: not-allowed; }

.composer-input {
  flex: 1;
  border: none;
  outline: none;
  resize: none;
  max-height: 200px;
  min-height: 24px;
  padding: 6px 4px;
  font-size: 16px;
  line-height: 1.5;
  background: transparent;
  color: var(--text);
}
.composer-input::placeholder { color: var(--text-muted); }

.composer-trailing {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.composer-send {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--send-bg);
  color: var(--send-fg);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur), transform 0.1s;
}
.composer-send:disabled {
  background: var(--send-disabled);
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.55;
}
.composer-send:not(:disabled):hover {
  background: var(--action-hover);
}
.composer-send:not(:disabled):active {
  transform: scale(0.96);
}
.composer-send .send-icon-up,
.composer-send .send-icon-wave { display: none; }
.composer-send:not(:disabled):not(.has-text) .send-icon-wave { display: block; }
.composer-send:not(:disabled).has-text .send-icon-up { display: block; }

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: 40rem;
  width: 100%;
}
.quick-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--btn-bg);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background var(--dur), color var(--dur);
}
.quick-chip svg {
  flex-shrink: 0;
  opacity: 0.75;
}
.quick-chip:hover {
  background: var(--btn-hover);
  color: var(--text);
}
.quick-chip:hover svg { opacity: 1; }
.quick-chip.active {
  background: var(--accent-soft);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}
.quick-chip.active svg { opacity: 1; color: var(--link); }

.composer-area.chat-active .quick-actions { display: none; }
.composer-area.chat-active .welcome ~ * { /* noop */ }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  padding: 10px 18px;
  background: var(--toast-bg);
  color: var(--toast-fg);
  border-radius: 9999px;
  font-size: 13px;
  z-index: 200;
  opacity: 0;
  transition: opacity .25s, transform .25s;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Auth pages */
.auth-page {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg);
  background-image: radial-gradient(ellipse 80% 50% at 50% 0%, var(--glow), transparent 55%);
}
.auth-card { width: 100%; max-width: 380px; }
.auth-logo { display: flex; justify-content: center; margin-bottom: 12px; color: var(--text); }
.auth-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  text-align: center;
  margin: 0 0 24px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}
.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.field input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--inset);
  outline: none;
  font-size: 14px;
  line-height: 20px;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.field input:focus {
  border-color: var(--border-strong);
  background: var(--surface-raised);
  box-shadow: 0 0 0 3px var(--focus);
  outline: none;
}
.auth-remember {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  margin: 2px 0 4px;
}
.auth-remember input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
}
.auth-submit {
  padding: 11px 16px;
  border-radius: var(--radius-md);
  background: var(--action);
  border: none;
  color: var(--action-fg);
  font-size: 14px;
  font-weight: 600;
  margin-top: 4px;
}
.auth-submit:hover:not(:disabled) {
  background: var(--action-hover);
}
.auth-error {
  padding: 12px;
  border-radius: 10px;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--danger);
  font-size: 14px;
}
.auth-theme-wrap {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 10;
}
.auth-link {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-muted);
}
.auth-link a {
  color: var(--link);
  font-weight: 600;
  text-decoration: none;
}
.auth-link a:hover { text-decoration: underline; }
.auth-back { text-align: center; margin-top: 14px; font-size: 13px; color: var(--text-muted); }
.auth-back a { color: var(--link); }
.auth-back a:hover { text-decoration: underline; }

/* Responsive — chat & shared mobile */
@media (max-width: 768px) {
  .app {
    grid-template-columns: 1fr;
    transition: none;
  }
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: min(300px, 92vw);
    max-width: 100%;
    transform: translateX(-100%);
    box-shadow: var(--shadow-menu);
    will-change: transform;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
    padding-left: env(safe-area-inset-left, 0);
  }
  .app.sidebar-collapsed .sidebar {
    border-right-color: var(--border);
  }
  .app.sidebar-open .sidebar {
    transform: translateX(0);
    pointer-events: auto;
  }
  .app.sidebar-open .main {
    overflow: hidden;
  }
  #openSidebarBtn { display: inline-flex; }
  #sidebarCollapseBtn { display: inline-flex; }

  .icon-btn,
  .composer-plus,
  .composer-mic,
  .composer-send {
    min-width: 44px;
    min-height: 44px;
  }
  .topbar {
    padding: 0 max(10px, env(safe-area-inset-right, 0)) 0 max(10px, env(safe-area-inset-left, 0));
    min-height: 48px;
    gap: 4px;
  }
  .topbar-left { min-width: 0; flex: 1; }
  .topbar-right { flex-shrink: 0; }
  .model-picker {
    max-width: min(10rem, 42vw);
    padding: 8px 10px;
    min-height: 44px;
  }
  .model-picker-brand {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .topbar-left { position: relative; }
  .model-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: auto;
    bottom: auto;
    width: min(calc(100vw - 24px), 300px);
    min-width: 0;
    max-height: min(55dvh, 420px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 200;
  }
  .user-menu {
    position: fixed;
    right: max(10px, env(safe-area-inset-right, 0));
    left: auto;
    top: calc(48px + env(safe-area-inset-top, 0));
    min-width: min(280px, calc(100vw - 20px));
    max-width: calc(100vw - 20px);
    z-index: 200;
  }
  .btn {
    min-height: 44px;
    padding: 10px 14px;
  }
  .save-status { display: none; }

  .anon-banner {
    flex-wrap: wrap;
    padding: 10px 12px;
    font-size: 12px;
    text-align: center;
    padding-left: max(12px, env(safe-area-inset-left, 0));
    padding-right: max(12px, env(safe-area-inset-right, 0));
  }
  .anon-close { min-width: 44px; min-height: 44px; }

  .welcome {
    padding: 32px 16px 160px;
  }
  .welcome-inner { max-width: 100%; }
  .welcome-sub { font-size: 14px; }

  .messages {
    padding: 12px max(12px, env(safe-area-inset-right, 0)) 20px max(12px, env(safe-area-inset-left, 0));
  }
  .msg-inner { max-width: min(92%, 100%); }
  .msg-images img {
    max-width: min(100%, 280px);
    max-height: 220px;
  }
  .msg-content pre,
  .code-block {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .composer-area {
    padding: 0 max(10px, env(safe-area-inset-right, 0)) max(12px, env(safe-area-inset-bottom, 0)) max(10px, env(safe-area-inset-left, 0));
    gap: 12px;
  }
  .composer-card {
    max-width: none;
    border-radius: var(--radius-lg);
  }
  .composer-input {
    font-size: 16px;
    min-height: 28px;
  }

  .quick-actions {
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 8px;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    padding: 2px 2px 6px;
  }
  .quick-actions::-webkit-scrollbar { display: none; }
  .quick-chip {
    flex: 0 0 auto;
    scroll-snap-align: start;
    min-height: 44px;
    padding: 10px 14px;
    font-size: 13px;
  }

  .scroll-bottom-btn {
    bottom: calc(140px + env(safe-area-inset-bottom, 0));
  }

  .toast {
    left: max(16px, env(safe-area-inset-left, 0));
    right: max(16px, env(safe-area-inset-right, 0));
    transform: translateY(12px);
    max-width: none;
    text-align: center;
  }
  .toast.show {
    transform: translateY(0);
  }
}

@media (max-width: 768px) and (hover: none) {
  .msg-toolbar { opacity: 1; }
  .chat-item-actions { opacity: 1; }
}

@media (min-width: 769px) {
  #openSidebarBtn { display: none; }
  .app.sidebar-collapsed #openSidebarBtn { display: inline-flex; }
  .app.sidebar-collapsed .sidebar {
    transform: none;
  }
}

/* ===================== Workspace (account area — not ChatGPT dashboard) ===================== */
.account-layout {
  display: grid;
  grid-template-columns: 15.5rem 1fr;
  min-height: 100dvh;
  background: var(--canvas);
}
.account-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100dvh;
  border-right: 1px solid var(--border);
  background: var(--canvas-elevated);
  padding: env(safe-area-inset-top, 0) 0 env(safe-area-inset-bottom, 0);
}
.account-rail-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 20px 14px 16px;
}
.account-rail-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 8px;
  border-radius: var(--radius-md);
  color: var(--fg);
  transition: background var(--dur);
}
.account-rail-brand:hover { background: var(--btn-bg); }
.account-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--link) 0%, #c4a574 48%, var(--action) 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), var(--shadow-sm);
}
.account-rail-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.account-rail-tagline {
  margin: 4px 8px 18px;
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.account-rail-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.account-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  border: 1px solid transparent;
  transition: background var(--dur), color var(--dur), border-color var(--dur);
}
.account-nav-link svg { flex-shrink: 0; opacity: 0.85; }
.account-nav-link:hover {
  background: var(--btn-bg);
  color: var(--fg);
}
.account-nav-link.is-active {
  background: var(--accent-soft);
  color: var(--fg);
  border-color: var(--border);
  font-weight: 600;
}
.account-nav-link.is-active svg { opacity: 1; color: var(--link); }
.account-rail-foot {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.account-nav-chat { color: var(--fg); }

.account-stage {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.account-header {
  padding: 28px max(28px, env(safe-area-inset-right, 0)) 8px max(28px, env(safe-area-inset-left, 0));
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--canvas-elevated) 0%, var(--canvas) 100%);
}
.account-page-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 1.875rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--fg);
}
.account-page-lead {
  margin: 0;
  max-width: 40rem;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-muted);
  transition: opacity 0.25s var(--ease);
}
.account-page-lead.is-updating { opacity: 0.55; }
.account-main {
  flex: 1;
  width: 100%;
  max-width: 52rem;
  padding: 24px max(28px, env(safe-area-inset-right, 0)) max(40px, env(safe-area-inset-bottom, 0)) max(28px, env(safe-area-inset-left, 0));
}
.account-loading,
.account-error {
  padding: 32px 0;
  text-align: center;
  color: var(--fg-muted);
  font-size: 14px;
}
.account-error { color: var(--danger); }

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.metric-cell {
  padding: 18px 16px;
  background: var(--canvas-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}
.metric-cell--accent {
  border-left-color: var(--link);
  background: var(--accent-soft);
}
.metric-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--fg);
  line-height: 1.1;
}
.metric-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.account-panel {
  margin-bottom: 20px;
  background: var(--canvas-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.account-panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--inset);
}
.account-panel-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
}
.account-panel-meta {
  font-size: 12px;
  color: var(--fg-muted);
}
.bar-chart--account {
  height: 160px;
  padding: 16px 18px 12px;
}
.bar-chart--account .bar-fill {
  background: linear-gradient(180deg, var(--link), var(--action));
  opacity: 0.9;
}

.account-bottom-bar {
  display: none;
}
.account-bottom-inner {
  display: flex;
  justify-content: space-around;
  gap: 4px;
  padding: 6px max(8px, env(safe-area-inset-right, 0)) max(6px, env(safe-area-inset-bottom, 0)) max(8px, env(safe-area-inset-left, 0));
  background: var(--canvas-elevated);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 24px rgba(28, 25, 23, 0.06);
}
.account-bottom-link {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 4px;
  min-height: 44px;
  border-radius: var(--radius-md);
  font-size: 10px;
  font-weight: 600;
  color: var(--fg-muted);
  max-width: 5.5rem;
}
.account-bottom-link svg { opacity: 0.8; }
.account-bottom-link.is-active {
  color: var(--link);
  background: var(--accent-soft);
}
.account-bottom-link.is-active svg { opacity: 1; }
.account-bottom-link span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.account-app .docs-section.account-panel {
  padding: 18px 20px;
  margin-bottom: 16px;
}
.account-app .docs-section.account-panel h2 {
  margin-top: 0;
  border: none;
  padding-bottom: 0;
}

/* Legacy account shell (admin modals still use page-shell elsewhere) */
.page-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--canvas);
  color: var(--fg);
}
.page-topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  height: 56px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--canvas-elevated);
  z-index: 10;
}
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--gh-border);
  background: var(--gh-btn-bg);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--gh-fg);
  transition: background var(--dur);
}
.back-btn:hover { background: var(--gh-btn-hover); }
.page-brand {
  font-size: 15px; font-weight: 600; letter-spacing: -.01em; color: var(--gh-fg);
  display: flex; align-items: center; gap: 8px;
}
.page-brand img { height: 22px; width: auto; border-radius: 5px; display: block; }
.page-tabs {
  display: flex;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
  align-items: stretch;
  height: 100%;
}
.page-tab {
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  min-height: 56px;
  border-radius: 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-tab:hover {
  color: var(--fg);
  background: var(--btn-bg);
}
.page-tab.active {
  color: var(--fg);
  font-weight: 600;
  border-bottom-color: var(--link);
}

.page-main {
  flex: 1;
  width: 100%;
  max-width: 1012px;
  margin: 0 auto;
  padding: 36px 24px 80px;
}
@media (prefers-reduced-motion: no-preference) {
  .page-body .page-main {
    animation: pageMainIn 0.4s var(--ease) both;
  }
  @keyframes pageMainIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}
.page-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  color: var(--fg);
}
.page-sub {
  color: var(--fg-muted);
  margin: 0 0 32px;
  font-size: 15px;
  line-height: 1.6;
  max-width: 36rem;
  transition: opacity 0.25s var(--ease);
}
.page-sub.is-updating {
  opacity: 0.55;
}
.inline-link { color: var(--link); font-weight: 500; }
.inline-link:hover { text-decoration: underline; }

/* Plans — usage tiers (not product cards) */
.plans-grid {
  display: flex;
  flex-direction: column;
  max-width: 42rem;
  min-height: 18rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--canvas-elevated);
  box-shadow: var(--shadow-sm);
}
.plans-grid.is-ready .plan-tier {
  animation: planTierIn 0.35s var(--ease) both;
}
.plans-grid.is-ready .plan-tier:nth-child(1) { animation-delay: 0.04s; }
.plans-grid.is-ready .plan-tier:nth-child(2) { animation-delay: 0.09s; }
.plans-grid.is-ready .plan-tier:nth-child(3) { animation-delay: 0.14s; }
@media (prefers-reduced-motion: no-preference) {
  @keyframes planTierIn {
    from {
      opacity: 0;
      transform: translateY(6px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}
.plans-error,
.plans-grid .dashboard-error {
  padding: 32px 24px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 14px;
}
.plan-skeleton {
  pointer-events: none;
}
.plan-skeleton .sk-line {
  border-radius: var(--radius-sm);
  background: linear-gradient(
    90deg,
    var(--inset) 0%,
    var(--btn-hover) 45%,
    var(--inset) 90%
  );
  background-size: 220% 100%;
  animation: planSkShimmer 1.1s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) {
  .plan-skeleton .sk-line {
    animation: none;
    background: var(--inset);
  }
}
@keyframes planSkShimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}
.sk-title { width: 5.5rem; height: 18px; margin-bottom: 10px; }
.sk-desc { width: min(100%, 18rem); height: 14px; margin-bottom: 14px; }
.sk-feat { width: 9rem; height: 12px; }
.sk-price { width: 4.5rem; height: 22px; }
.sk-btn { width: 7.5rem; height: 36px; border-radius: var(--radius-md); }
.plan-tier {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px 24px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s var(--ease);
}
.plan-tier:not(.current):not(.plan-skeleton):hover {
  background: var(--btn-bg);
}
.plan-tier:last-child { border-bottom: none; }
.plan-tier.current {
  background: var(--accent-soft);
  box-shadow: inset 3px 0 0 var(--link);
}
.plan-tier-body { flex: 1; min-width: min(100%, 220px); }
.plan-tier-name {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.plan-tier-desc {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.5;
}
.plan-feats {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.plan-feats li {
  font-size: 13px;
  color: var(--fg-muted);
  padding-left: 1.1em;
  position: relative;
}
.plan-feats li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--fg-subtle);
  font-weight: 700;
}
.plan-tier-aside {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  min-width: 140px;
}
.plan-price {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-align: right;
}
.plan-period {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--fg-muted);
  margin-top: 2px;
}
.plan-btn {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  color: var(--fg);
  white-space: nowrap;
  transition: background 0.2s var(--ease), transform 0.12s var(--ease), box-shadow 0.2s var(--ease);
}
.plan-btn:hover:not(:disabled) { background: var(--btn-hover); }
.plan-btn:active:not(:disabled) { transform: scale(0.98); }
.plan-btn.primary {
  background: var(--action);
  color: var(--action-fg);
  border-color: transparent;
  box-shadow: var(--shadow-sm);
}
.plan-btn.primary:hover:not(:disabled) {
  background: var(--action-hover);
  box-shadow: var(--shadow-md);
}
.plan-btn.ghost {
  background: transparent;
  color: var(--fg-muted);
  border-color: transparent;
  cursor: default;
}
.plan-btn:disabled { opacity: 0.65; cursor: default; }

/* Payment modal */
.pay-modal { max-width: 420px; }
.pay-loading { padding: 40px 0; text-align: center; color: var(--text-muted); }
.pay-wrap { text-align: center; }
.pay-amount { font-size: 15px; margin-bottom: 16px; }
.pay-qr img {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px;
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}
.pay-qr img.is-loaded {
  opacity: 1;
}
.pay-status {
  margin-top: 18px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.pay-status.paid { color: var(--accent); }
.pay-status.expired { color: var(--danger); }
.pay-spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: paySpin .8s linear infinite;
}
@keyframes paySpin { to { transform: rotate(360deg); } }
.pay-check { color: var(--accent); font-weight: 700; }
.pay-x { color: var(--danger); font-weight: 700; }
.pay-hint { font-size: 12px; color: var(--text-muted); margin-top: 14px; line-height: 1.5; }

/* API keys */
.key-create { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.key-name-input {
  flex: 1;
  min-width: 200px;
  padding: 11px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--bg);
  outline: none;
}
.key-name-input:focus { border-color: var(--text-muted); box-shadow: 0 0 0 3px var(--focus-ring); }
.key-create .plan-btn { width: auto; padding: 11px 20px; }
.new-key-box {
  border: 1px solid var(--accent);
  background: var(--anon-bg);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
}
.new-key-label { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; }
.new-key-row { display: flex; gap: 10px; align-items: center; }
.new-key-value {
  flex: 1;
  font-family: var(--mono);
  font-size: 13px;
  background: var(--code-bg);
  padding: 10px 12px;
  border-radius: 8px;
  word-break: break-all;
}
.new-key-box .plan-btn { width: auto; padding: 10px 16px; }
.keys-list { display: flex; flex-direction: column; gap: 10px; }
.keys-empty { color: var(--text-muted); padding: 20px 0; }
.key-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.key-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.key-row-name { font-weight: 600; font-size: 14px; }
.key-row-meta { font-size: 12px; color: var(--text-muted); }
.key-row-meta code { font-family: var(--mono); }
.key-revoke {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  font-size: 13px;
  color: var(--danger);
  flex-shrink: 0;
  transition: background var(--dur);
}
.key-revoke:hover { background: var(--error-bg); }

/* Docs */
.docs-section { margin-bottom: 32px; }
.docs-section h2 { font-size: 19px; font-weight: 600; margin: 0 0 10px; }
.docs-section h3 { font-size: 14px; font-weight: 600; margin: 16px 0 8px; color: var(--text-secondary); }
.docs-section p { color: var(--text-secondary); line-height: 1.6; }
.docs-section code { font-family: var(--mono); font-size: .88em; background: var(--code-bg); padding: 2px 6px; border-radius: 5px; }
.http-method {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 5px;
  margin-right: 6px;
}
.docs-code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  overflow-x: auto;
}
.docs-code code { background: transparent; padding: 0; font-size: 13px; line-height: 1.6; white-space: pre; }
.docs-table { width: 100%; border-collapse: collapse; margin: 8px 0; }
.docs-table th, .docs-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  vertical-align: top;
}
.docs-table th { color: var(--text-secondary); font-weight: 600; }

/* ===================== Admin panel ===================== */
.admin-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .05em;
  padding: 4px 10px;
  border-radius: 9999px;
}
.page-topbar .page-tab { border: none; background: none; cursor: pointer; font: inherit; }

.admin-search-wrap { margin-bottom: 16px; }
.admin-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th, .admin-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.admin-table thead th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
  position: sticky;
  top: 0;
}
.admin-table tbody tr:last-child td { border-bottom: none; }
.admin-table code { font-family: var(--mono); font-size: 12px; background: var(--code-bg); padding: 2px 6px; border-radius: 5px; }
.u-name { font-weight: 600; }
.u-email { font-size: 12px; color: var(--text-muted); }
.u-meta { font-size: 12px; color: var(--text-muted); }
.u-plan-select {
  padding: 6px 8px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--bg);
  font-size: 13px;
}
.u-actions { display: flex; flex-direction: column; gap: 6px; }
.u-btn {
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  background: var(--text);
  color: var(--bg);
  white-space: nowrap;
  transition: background var(--dur), opacity var(--dur);
}
.u-btn:hover { opacity: .88; }
.u-btn.ghost { background: transparent; border: 1px solid var(--border-strong); color: var(--text); }
.u-btn.ghost:hover { background: var(--sidebar-hover); opacity: 1; }

.plan-dist { display: flex; gap: 14px; flex-wrap: wrap; }
.plan-dist-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-secondary);
  min-width: 90px;
}
.plan-dist-name { font-size: 12px; color: var(--text-muted); font-weight: 600; }
.plan-dist-count { font-size: 22px; font-weight: 700; }

/* ============================================================
   Admin console (uses --gh-* tokens from top of file)
   ============================================================ */
.admin-body { background: var(--gh-canvas); color: var(--gh-fg); }
.admin-gate, .admin-denied {
  min-height: 100dvh;
  display: flex; align-items: center; justify-content: center;
  color: var(--gh-fg-muted); text-align: center; padding: 24px; line-height: 1.7;
}
.admin-denied { color: var(--gh-danger); }

.admin-shell { min-height: 100dvh; display: flex; flex-direction: column; }

/* Top bar */
.admin-topbar {
  height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px;
  background: var(--gh-inset);
  border-bottom: 1px solid var(--gh-border);
  position: sticky; top: 0; z-index: 20;
}
.admin-topbar-left, .admin-topbar-right { display: flex; align-items: center; gap: 12px; }
.admin-home {
  width: 32px; height: 32px; border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--gh-fg); border: 1px solid transparent;
  transition: background .15s;
}
.admin-home:hover { background: var(--gh-btn-hover); }
.admin-brand { font-weight: 600; font-size: 15px; letter-spacing: -.01em; }
.admin-env {
  font-size: 11px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase;
  color: var(--gh-fg-muted);
  border: 1px solid var(--gh-border); border-radius: 9999px;
  padding: 2px 8px;
}
.admin-whoami { font-size: 13px; color: var(--gh-fg-muted); }
.admin-topbar .icon-btn { color: var(--gh-fg-muted); }
.admin-topbar .icon-btn:hover { background: var(--gh-btn-hover); color: var(--gh-fg); }

.admin-layout { display: grid; grid-template-columns: var(--gh-sidebar-w) 1fr; flex: 1; min-height: 0; }

/* Sidebar */
.admin-sidebar {
  border-right: 1px solid var(--gh-border);
  padding: 16px 12px;
  background: var(--gh-canvas);
  display: flex; flex-direction: column; gap: 18px;
}
.admin-nav-group { display: flex; flex-direction: column; gap: 2px; }
.admin-nav-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
  color: var(--gh-fg-muted); padding: 4px 8px 6px;
}
.admin-nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px; border-radius: 6px;
  font-size: 14px; color: var(--gh-fg); text-align: left;
  border: 1px solid transparent;
  transition: background .12s, border-color .12s;
}
.admin-nav-item svg { color: var(--gh-fg-muted); }
.admin-nav-item:hover { background: var(--gh-btn-hover); }
.admin-nav-item.active {
  background: var(--gh-inset);
  border-color: var(--gh-border);
  font-weight: 600;
}
.admin-nav-item.active::before {
  content: ''; position: absolute; left: 0; width: 3px; height: 22px;
  background: var(--gh-accent); border-radius: 3px; margin-left: -12px;
}
.admin-nav-item { position: relative; }

/* Main */
.admin-main { padding: 28px 32px 64px; overflow-x: hidden; max-width: 1180px; }
.admin-view-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 22px;
}
.admin-h1 { font-size: 22px; font-weight: 600; letter-spacing: -.02em; margin: 0 0 2px; }
.admin-muted { color: var(--gh-fg-muted); font-size: 13.5px; margin: 0; }
.admin-loading { padding: 40px; text-align: center; color: var(--gh-fg-muted); }

/* Metric cards */
.metric-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 22px;
}
.metric-card {
  border: 1px solid var(--gh-border); border-radius: 10px;
  padding: 16px 18px; background: var(--gh-canvas);
  display: flex; flex-direction: column; gap: 3px;
  box-shadow: var(--gh-shadow);
}
.metric-num { font-size: 28px; font-weight: 700; letter-spacing: -.03em; line-height: 1.1; }
.metric-label { font-size: 13px; color: var(--gh-fg-muted); }
.metric-hint { font-size: 12px; color: var(--gh-success); font-weight: 500; margin-top: 2px; }

/* GitHub cards */
.gh-card {
  border: 1px solid var(--gh-border); border-radius: 10px;
  background: var(--gh-canvas); margin-bottom: 18px; overflow: hidden;
  box-shadow: var(--gh-shadow);
}
.gh-card-head {
  display: flex; align-items: baseline; gap: 10px;
  padding: 14px 18px; border-bottom: 1px solid var(--gh-border);
  background: var(--gh-inset);
}
.gh-card-head h3 { margin: 0; font-size: 14px; font-weight: 600; }
.gh-card-head .admin-muted { font-size: 12px; }
.gh-card-body { padding: 18px; }
.gh-card-foot { padding: 14px 18px; border-top: 1px solid var(--gh-border); background: var(--gh-inset); }
.gh-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.gh-two-col .gh-card { margin-bottom: 0; }

/* Charts inside admin */
.admin-main .bar-chart { padding: 18px; height: 150px; }
.admin-main .bar-chart-lg { height: 190px; }
.admin-main .bar-fill { background: var(--gh-accent); border-radius: 4px 4px 0 0; opacity: .85; }
.admin-main .bar-fill:hover { opacity: 1; }
.admin-main .bar-count { color: var(--gh-fg-muted); }
.admin-main .bar-label { color: var(--gh-fg-muted); }

/* Buttons */
.gh-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px; border-radius: 6px;
  font-size: 13.5px; font-weight: 500;
  background: var(--gh-btn-bg); color: var(--gh-fg);
  border: 1px solid var(--gh-border);
  transition: background .12s, border-color .12s;
}
.gh-btn:hover { background: var(--gh-btn-hover); }
.gh-btn svg { color: var(--gh-fg-muted); }
.gh-btn-sm { padding: 5px 10px; font-size: 12.5px; }
.gh-btn-primary {
  background: var(--action);
  color: var(--action-fg);
  border-color: transparent;
}
.gh-btn-primary:hover { background: var(--action-hover); filter: none; }
.gh-btn-ghost { background: transparent; }
.gh-btn-danger {
  color: var(--gh-danger);
  border-color: rgba(207, 34, 46, 0.35);
}
.gh-btn-danger:hover:not(:disabled) {
  background: rgba(207, 34, 46, 0.08);
  border-color: var(--gh-danger);
}
.gh-btn:disabled { opacity: .6; cursor: default; }
.u-actions-compact {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

/* Search */
.gh-search {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--gh-border); border-radius: 8px;
  padding: 8px 12px; margin-bottom: 16px; max-width: 420px;
  background: var(--gh-canvas);
}
.gh-search svg { color: var(--gh-fg-muted); flex-shrink: 0; }
.gh-search input { flex: 1; border: none; outline: none; background: transparent; color: var(--gh-fg); font-size: 14px; }

/* Tables */
.gh-table-wrap { border: 1px solid var(--gh-border); border-radius: 10px; overflow: hidden; box-shadow: var(--gh-shadow); }
.gh-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.gh-table thead th {
  text-align: left; padding: 10px 16px;
  background: var(--gh-inset); border-bottom: 1px solid var(--gh-border);
  font-weight: 600; color: var(--gh-fg-muted); font-size: 12px;
  text-transform: uppercase; letter-spacing: .03em;
}
.gh-table td { padding: 12px 16px; border-bottom: 1px solid var(--gh-border-muted); vertical-align: middle; }
.gh-table tbody tr:last-child td { border-bottom: none; }
.gh-table tbody tr:hover { background: var(--gh-inset); }
.ta-right { text-align: right; }
.nowrap { white-space: nowrap; }
.gh-empty { padding: 40px; text-align: center; color: var(--gh-fg-muted); }

.u-cell { display: flex; align-items: center; gap: 10px; }
.u-avatar {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, #6e7681, #424a53);
  color: #fff; font-size: 11px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
.u-name { font-weight: 600; display: flex; align-items: center; gap: 8px; }
.u-email { font-size: 12px; color: var(--gh-fg-muted); }
.u-meta { font-size: 12px; color: var(--gh-fg-muted); margin-top: 2px; }
.u-strong { font-weight: 600; }
.u-actions { display: flex; align-items: center; gap: 8px; justify-content: flex-end; }

.gh-select {
  padding: 5px 8px; border-radius: 6px; font-size: 13px;
  border: 1px solid var(--gh-border); background: var(--gh-canvas); color: var(--gh-fg);
}

/* Badges */
.badge {
  display: inline-block; font-size: 11px; font-weight: 600;
  padding: 2px 8px; border-radius: 9999px; letter-spacing: .02em;
  border: 1px solid transparent;
}
.badge-free { background: rgba(89,99,110,.12); color: var(--gh-fg-muted); }
.badge-go { background: rgba(9,105,218,.12); color: var(--gh-accent); }
.badge-pro { background: rgba(130,80,223,.14); color: #8250df; }
html[data-theme='dark'] .badge-pro { color: #a371f7; }
.badge-admin { background: rgba(207,34,46,.12); color: var(--gh-danger); }
.badge-muted { background: rgba(89,99,110,.1); color: var(--gh-fg-muted); }
.badge-active { background: rgba(26,127,55,.12); color: var(--gh-success); }
.badge-suspended { background: rgba(207,34,46,.12); color: var(--gh-danger); }
.mono-tag {
  font-family: var(--mono); font-size: 12px;
  background: var(--gh-inset); border: 1px solid var(--gh-border);
  padding: 2px 7px; border-radius: 6px; color: var(--gh-fg);
}

/* Plan distribution */
.plan-dist { display: flex; gap: 14px; flex-wrap: wrap; padding: 18px; }
.plan-dist-item {
  flex: 1; min-width: 120px;
  border: 1px solid var(--gh-border); border-radius: 10px; padding: 16px 18px;
  display: flex; flex-direction: column; gap: 6px; background: var(--gh-inset);
}
.plan-dist-name { font-size: 11px; font-weight: 700; letter-spacing: .04em; color: var(--gh-fg-muted); }
.plan-dist-count { font-size: 26px; font-weight: 700; letter-spacing: -.02em; }

/* Settings */
.settings-stack { display: flex; flex-direction: column; gap: 18px; max-width: 720px; }
.gh-field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 16px; }
.gh-field:last-child { margin-bottom: 0; }
.gh-field label { font-size: 13.5px; font-weight: 600; }
.gh-field-hint { font-size: 12.5px; color: var(--gh-fg-muted); }
.gh-input {
  padding: 9px 12px; border-radius: 6px; font-size: 14px;
  border: 1px solid var(--gh-border); background: var(--gh-canvas); color: var(--gh-fg);
  outline: none; transition: border-color .12s, box-shadow .12s;
}
.gh-input:focus { border-color: var(--gh-accent); box-shadow: 0 0 0 3px rgba(9,105,218,.12); }
.gh-select-full { width: 100%; cursor: pointer; }

/* Admin — activate plan modal */
.admin-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: rgba(1, 4, 9, 0.55);
  animation: dashFade .15s var(--ease);
}
.admin-modal {
  width: 100%;
  max-width: 440px;
  background: var(--gh-canvas);
  border: 1px solid var(--gh-border);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(1, 4, 9, 0.35);
  overflow: hidden;
}
.admin-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gh-border);
  background: var(--gh-inset);
}
.admin-modal-head h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--gh-fg);
}
.admin-modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.admin-modal-error {
  padding: 10px 12px;
  margin-bottom: 8px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--gh-danger);
  background: rgba(207, 34, 46, 0.08);
  border: 1px solid rgba(207, 34, 46, 0.35);
}
.admin-modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 12px;
  padding-top: 4px;
}
.admin-modal-wide {
  max-width: 920px;
}
.admin-modal-body-table {
  padding: 0;
  max-height: min(70vh, 520px);
  overflow: auto;
}
.admin-modal-body-table .gh-empty,
.admin-modal-body-table .admin-loading {
  padding: 32px 20px;
}

.pay-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}
.pay-search {
  flex: 1;
  min-width: 220px;
  max-width: 420px;
  margin-bottom: 0;
}
.gh-select-filter {
  width: auto;
  min-width: 160px;
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
}

.badge-pay { font-size: 11px; font-weight: 600; letter-spacing: .02em; }
.badge-pay-paid { background: rgba(26,127,55,.12); color: var(--gh-success); }
.badge-pay-pending { background: rgba(154,103,0,.12); color: #9a6700; }
html[data-theme='dark'] .badge-pay-pending { color: #d4a72c; }
.badge-pay-expired { background: rgba(89,99,110,.12); color: var(--gh-fg-muted); }

.pay-table .mono-tag { font-size: 11px; }
.pay-history-block { margin-top: 8px; }
.pay-history-empty {
  padding: 20px 18px;
  color: var(--gh-fg-muted);
  font-size: 14px;
  margin: 0;
}
.page-body .pay-table-wrap {
  border: 1px solid var(--gh-border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--gh-shadow);
}
.page-body .pay-table-wrap .pay-table { margin: 0; }
.page-body .pay-table-wrap .gh-table thead th {
  background: var(--gh-inset);
}

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar {
    flex-direction: row; flex-wrap: wrap; border-right: none;
    border-bottom: 1px solid var(--gh-border); padding: 10px 12px;
  }
  .admin-nav-label { display: none; }
  .admin-nav-item.active::before { display: none; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .gh-two-col { grid-template-columns: 1fr; }
  .admin-main { padding: 20px 16px 56px; }
}

/* ============================================================
   GitHub-style refinements for the user account pages
   (dashboard / plans / api keys / docs). Scoped to .page-body
   so the chat app's own dashboard modal is untouched.
   ============================================================ */
.page-body .page-main .stat-cards { grid-template-columns: repeat(4, 1fr); gap: 14px; }
.page-body .page-main .stat-card {
  background: var(--gh-canvas);
  border: 1px solid var(--gh-border);
  border-radius: 10px;
  padding: 16px 18px;
  box-shadow: var(--gh-shadow);
}
.page-body .page-main .stat-num { color: var(--gh-fg); font-size: 28px; letter-spacing: -.03em; }
.page-body .page-main .stat-label { color: var(--gh-fg-muted); font-size: 13px; }

.page-body .page-main .chart-block {
  border: 1px solid var(--gh-border);
  border-radius: 10px;
  background: var(--gh-canvas);
  box-shadow: var(--gh-shadow);
  padding: 0;
  margin-top: 18px;
}
.page-body .page-main .chart-block h3 {
  margin: 0; padding: 14px 18px;
  border-bottom: 1px solid var(--gh-border);
  background: var(--gh-inset);
  font-size: 14px; display: flex; align-items: baseline; gap: 8px;
}
.page-body .page-main .chart-block .chart-sub { color: var(--gh-fg-muted); }
.page-body .page-main .bar-chart { padding: 18px; height: 170px; }
.page-body .page-main .bar-fill { background: var(--gh-accent); border-radius: 4px 4px 0 0; opacity: .85; }
.page-body .page-main .bar-fill:hover { opacity: 1; }
.page-body .page-main .bar-count { color: var(--gh-fg-muted); }
.page-body .page-main .bar-label { color: var(--gh-fg-muted); }
.page-body .page-main .dashboard-loading,
.page-body .page-main .dashboard-error { color: var(--gh-fg-muted); }

/* API keys */
.page-body .key-name-input {
  border: 1px solid var(--gh-border);
  border-radius: 8px;
  background: var(--gh-canvas);
  color: var(--gh-fg);
  padding: 9px 12px;
}
.page-body .key-name-input:focus { border-color: var(--gh-accent); box-shadow: 0 0 0 3px rgba(9,105,218,.12); }
.page-body .key-create .plan-btn { border-radius: 8px; }
.page-body .new-key-box {
  border: 1px solid var(--gh-success);
  background: rgba(26,127,55,.06);
  border-radius: 10px;
}
.page-body .new-key-label { color: var(--gh-fg); }
.page-body .new-key-value {
  background: var(--gh-inset); border: 1px solid var(--gh-border);
  color: var(--gh-fg); border-radius: 6px;
}
.page-body .key-row {
  border: 1px solid var(--gh-border);
  border-radius: 10px;
  background: var(--gh-canvas);
  box-shadow: var(--gh-shadow);
  padding: 14px 16px;
}
.page-body .key-row-name { color: var(--gh-fg); }
.page-body .key-row-meta { color: var(--gh-fg-muted); }
.page-body .key-revoke {
  border: 1px solid var(--gh-border);
  border-radius: 6px; color: var(--gh-danger);
  background: var(--gh-btn-bg);
}
.page-body .key-revoke:hover { background: rgba(207,34,46,.08); border-color: var(--gh-danger); }
.page-body .keys-empty,
.account-muted { color: var(--gh-fg-muted); }

/* Docs */
.page-body .docs-section { margin-bottom: 34px; }
.page-body .docs-section h2 {
  font-size: 18px; font-weight: 600; margin: 0 0 12px;
  padding-bottom: 8px; border-bottom: 1px solid var(--gh-border); color: var(--gh-fg);
}
.page-body .docs-section h3 { color: var(--gh-fg); font-size: 13.5px; }
.page-body .docs-section p { color: var(--gh-fg-muted); }
.page-body .docs-section code {
  font-family: var(--mono); font-size: .86em;
  background: var(--gh-inset); border: 1px solid var(--gh-border-muted);
  padding: 1px 6px; border-radius: 6px; color: var(--gh-fg);
}
.page-body .http-method {
  background: var(--gh-success); border-radius: 6px; letter-spacing: .03em;
}
.page-body .docs-code {
  background: var(--gh-inset);
  border: 1px solid var(--gh-border);
  border-radius: 10px;
  padding: 16px 18px;
}
.page-body .docs-code code { color: var(--gh-fg); border: none; background: transparent; padding: 0; }
.page-body .docs-table { border: 1px solid var(--gh-border); border-radius: 8px; overflow: hidden; }
.page-body .docs-table th {
  background: var(--gh-inset); color: var(--gh-fg-muted);
  font-size: 12px; text-transform: uppercase; letter-spacing: .03em;
  border-bottom: 1px solid var(--gh-border);
}
.page-body .docs-table td { border-bottom: 1px solid var(--gh-border-muted); color: var(--gh-fg); }
.page-body .docs-table tr:last-child td { border-bottom: none; }

/* Payment modal — align to GitHub tokens */
.page-body .dashboard-overlay { background: var(--overlay); }
.page-body .dashboard-overlay.is-open .dashboard-modal {
  background: var(--canvas-elevated);
}
.page-body .dashboard-modal {
  background: var(--gh-canvas); border: 1px solid var(--gh-border);
  border-radius: 12px; box-shadow: 0 16px 48px rgba(1,4,9,.4);
}
.page-body .dashboard-head { border-bottom: 1px solid var(--gh-border); background: var(--gh-inset); }
.page-body .dashboard-head h2 { color: var(--gh-fg); }
.page-body .pay-spinner { border-color: var(--gh-border); border-top-color: var(--gh-accent); }
.page-body .pay-status.paid, .page-body .pay-check { color: var(--gh-success); }

/* Account pages — mobile */
@media (max-width: 768px) {
  .account-layout {
    grid-template-columns: 1fr;
  }
  .account-rail {
    display: none;
  }
  .account-bottom-bar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
  }
  .account-header {
    padding: 20px max(16px, env(safe-area-inset-right, 0)) 12px max(16px, env(safe-area-inset-left, 0));
  }
  .account-main {
    padding: 20px max(16px, env(safe-area-inset-right, 0)) calc(5.5rem + env(safe-area-inset-bottom, 0)) max(16px, env(safe-area-inset-left, 0));
  }
  .metric-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .metric-value { font-size: 1.5rem; }
  .bar-chart--account { height: 140px; padding: 12px 14px; }

  .page-topbar {
    flex-wrap: wrap;
    height: auto;
    min-height: 52px;
    padding: 10px max(14px, env(safe-area-inset-right, 0)) 0 max(14px, env(safe-area-inset-left, 0));
    gap: 8px;
    position: sticky;
    top: 0;
  }
  .back-btn {
    min-height: 44px;
    padding: 8px 12px;
  }
  .page-brand {
    font-size: 14px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .page-tabs {
    width: 100%;
    margin-left: 0;
    order: 3;
    gap: 0;
    border-top: 1px solid var(--border);
    margin: 6px calc(-1 * max(14px, env(safe-area-inset-left, 0))) 0;
    padding: 0 4px;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .page-tabs::-webkit-scrollbar { display: none; }
  .page-tab {
    flex: 1 0 auto;
    justify-content: center;
    min-height: 44px;
    min-width: 4.5rem;
    font-size: 13px;
    padding: 0 10px;
  }
  .page-main {
    padding: 24px max(16px, env(safe-area-inset-right, 0)) max(48px, env(safe-area-inset-bottom, 0)) max(16px, env(safe-area-inset-left, 0));
  }
  .page-title { font-size: 1.5rem; }
  .page-sub { font-size: 14px; margin-bottom: 24px; }

  .plans-grid {
    max-width: none;
    border-radius: var(--radius-md);
  }
  .plan-tier {
    padding: 18px 16px;
    flex-direction: column;
    align-items: stretch;
  }
  .plan-tier-aside {
    width: 100%;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 4px;
    border-top: 1px solid var(--border);
    margin-top: 4px;
  }
  .plan-tier.current .plan-tier-aside { border-top-color: var(--border); }
  .plan-price { text-align: left; }
  .plan-btn {
    min-height: 44px;
    padding: 10px 18px;
  }

  .page-body .page-main .stat-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .page-body .page-main .stat-num { font-size: 22px; }
  .page-body .page-main .bar-chart { height: 140px; padding: 12px; }

  .key-create {
    flex-direction: column;
    align-items: stretch;
  }
  .key-name-input {
    min-width: 0;
    width: 100%;
    min-height: 44px;
    font-size: 16px;
  }
  .key-create .plan-btn {
    width: 100%;
    min-height: 44px;
  }
  .key-row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .key-revoke {
    width: 100%;
    min-height: 44px;
    text-align: center;
  }

  .page-body .docs-section:has(.docs-table) {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-right: calc(-1 * max(16px, env(safe-area-inset-right, 0)));
    padding-right: max(16px, env(safe-area-inset-right, 0));
  }
  .page-body .docs-section:has(.docs-table) .docs-table {
    min-width: 32rem;
  }
  .page-body .new-key-row {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .page-body .new-key-value {
    word-break: break-all;
    font-size: 12px;
  }
  .page-body #copyKeyBtn {
    width: 100%;
    min-height: 44px;
  }
  .page-body .docs-code {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 12px 14px;
  }
  .page-body .docs-code code { font-size: 12px; }

  .page-body .dashboard-overlay {
    padding: 0;
    align-items: flex-end;
  }
  .page-body .dashboard-overlay.is-open .dashboard-modal,
  .pay-modal {
    max-width: none;
    width: 100%;
    margin: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-height: 92dvh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .pay-qr img {
    width: min(260px, 72vw);
    height: auto;
  }
}

@media (max-width: 480px) {
  .metric-strip { grid-template-columns: 1fr 1fr; }
  .account-page-title { font-size: 1.375rem; }
  .page-brand { display: none; }
  .page-tab { font-size: 12px; min-width: 0; padding: 0 6px; }
  .page-body .page-main .stat-cards { grid-template-columns: 1fr; }
  .quick-chip span { max-width: 8rem; overflow: hidden; text-overflow: ellipsis; }
  .auth-card { max-width: none; }
  .auth-page {
    padding: max(16px, env(safe-area-inset-top, 0)) max(16px, env(safe-area-inset-right, 0)) max(16px, env(safe-area-inset-bottom, 0)) max(16px, env(safe-area-inset-left, 0));
  }
  .auth-form { padding: 18px; }
  .auth-theme-wrap {
    top: max(12px, env(safe-area-inset-top, 0));
    right: max(12px, env(safe-area-inset-right, 0));
  }
  .admin-topbar { flex-wrap: wrap; height: auto; min-height: 52px; }
  .admin-whoami { display: none; }
}

/* Auth on page-body — inherit Studio styles; accent tweaks only */
.page-body .auth-remember input { accent-color: var(--link); }
.page-body .auth-error {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--danger);
  border-radius: var(--radius-md);
}