/* =====================================================================
   Beyound — Dark Design System (Linear/Vercel inspired)
   ===================================================================== */

:root {
  /* Base palette */
  --bg-base: #0a0a0a;
  --bg-elevated: #111111;
  --bg-elevated-2: #161616;
  --bg-input: #0d0d0d;
  --bg-hover: #1a1a1a;
  --bg-active: #1f1f1f;

  /* Borders */
  --border-subtle: #1f1f1f;
  --border-default: #2a2a2a;
  --border-strong: #3a3a3a;
  --border-focus: #4a4a4a;

  /* Text */
  --text-primary: #fafafa;
  --text-secondary: #a1a1a1;
  --text-tertiary: #6e6e6e;
  --text-disabled: #4a4a4a;

  /* Accent (single) */
  --accent: #10b981;
  --accent-hover: #34d399;
  --accent-muted: rgba(16, 185, 129, 0.12);
  --accent-border: rgba(16, 185, 129, 0.3);

  /* Status */
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.1);

  /* Bubbles */
  --bubble-me: #1a3a2e;
  --bubble-me-border: #2a5a45;
  --bubble-other: #1a1a1a;
  --bubble-other-border: #2a2a2a;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 0 3px rgba(16, 185, 129, 0.15);

  /* Sizes */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Layout */
  --sidebar-w: 240px;
  --topbar-h: 60px;
  --container-max: 1400px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-default); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--accent); color: var(--bg-base);
  padding: 8px 16px; font-weight: 600; z-index: 999;
  border-radius: 0 0 var(--radius-md) 0; transition: top 0.15s;
}
.skip-link:focus { top: 0; outline: none; }

.hidden { display: none !important; }
.mono { font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace; }

/* Shell */
.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
}

.sidebar {
  background: var(--bg-elevated);
  border-right: 1px solid var(--border-subtle);
  padding: 20px 14px;
  display: flex; flex-direction: column; gap: 24px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}

.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px; }
.brand-mark {
  width: 28px; height: 28px; background: var(--accent);
  border-radius: var(--radius-md); display: grid; place-items: center;
  color: var(--bg-base); font-weight: 800; font-size: 14px; letter-spacing: -0.02em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: -0.01em; }
.brand-sub { font-size: 11px; color: var(--text-tertiary); }

.nav-section { display: flex; flex-direction: column; gap: 2px; }
.nav-label {
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-tertiary); padding: 0 8px 6px;
}
.nav-btn {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 8px 10px; border: 0; background: transparent;
  color: var(--text-secondary); font-size: 13px; font-weight: 500;
  border-radius: var(--radius-md); text-align: left; cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.nav-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-btn.active { background: var(--bg-active); color: var(--text-primary); }
.nav-btn .nav-icon { width: 16px; height: 16px; flex-shrink: 0; opacity: 0.85; }
.nav-btn.active .nav-icon { color: var(--accent); opacity: 1; }

.sidebar-footer {
  margin-top: auto; padding: 12px 8px 8px;
  border-top: 1px solid var(--border-subtle);
  display: flex; flex-direction: column; gap: 6px;
}
.sidebar-footer-text { font-size: 11px; color: var(--text-tertiary); margin: 0; }
.sidebar-footer .back-link {
  font-size: 12px; color: var(--text-secondary);
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 4px; border-radius: var(--radius-sm);
}
.sidebar-footer .back-link:hover { color: var(--text-primary); }

/* Topbar */
.topbar {
  height: var(--topbar-h); border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-base); display: flex; align-items: center;
  justify-content: space-between; gap: 16px; padding: 0 24px;
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.topbar-left { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
.topbar-title {
  font-size: 15px; font-weight: 600; letter-spacing: -0.01em; margin: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-sub { font-size: 12px; color: var(--text-tertiary); margin: 0; white-space: nowrap; }
.topbar-right { display: flex; align-items: center; gap: 10px; }

.api-key-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-elevated); border: 1px solid var(--border-default);
  border-radius: var(--radius-md); padding: 4px 8px; height: 32px;
}
.api-key-box label {
  font-size: 11px; color: var(--text-tertiary); font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.06em; white-space: nowrap;
}
.api-key-box input {
  border: 0; background: transparent; color: var(--text-primary);
  font-size: 12px; width: 130px; outline: none;
  font-family: ui-monospace, monospace;
}
.api-key-box:focus-within { border-color: var(--border-focus); box-shadow: var(--shadow-glow); }

/* Status pill */
.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; font-size: 11px; font-weight: 600;
  border-radius: 999px; text-transform: lowercase; letter-spacing: 0.02em;
  white-space: nowrap;
}
.status-pill::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor;
}
.status-pill.state-connected { background: var(--success-bg); color: var(--success); }
.status-pill.state-connected::before { animation: pulse 2s infinite; }
.status-pill.state-disconnected { background: var(--danger-bg); color: var(--danger); }
.status-pill.state-qr,
.status-pill.state-pairing { background: var(--warning-bg); color: var(--warning); }
.status-pill.state-connecting { background: var(--info-bg); color: var(--info); }
.status-pill.state-connecting::before { animation: pulse 1.2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Content */
.content {
  padding: 24px;
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}
.content > * + * { margin-top: 20px; }

.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
}
.page-header h1 {
  font-size: 22px; font-weight: 700; margin: 0 0 4px; letter-spacing: -0.02em;
}
.page-header p { margin: 0; color: var(--text-secondary); font-size: 13px; }
.page-header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.section { display: none; }
.section.active { display: block; animation: fadeIn 0.2s ease-out; }

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

/* Card */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px;
  transition: border-color 0.15s;
}
.card.compact { padding: 12px 16px; }
.card.flush { padding: 0; overflow: hidden; }
.card-title { font-size: 13px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.01em; }
.card-desc { margin: 0 0 14px; color: var(--text-secondary); font-size: 12px; line-height: 1.5; }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px;
}
.card-header-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }

/* Stats */
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px;
}
.stat {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
}
.stat-label {
  font-size: 11px; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 600; margin: 0 0 6px;
}
.stat-value { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; }
.stat-hint { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }

/* Form */
.field { display: flex; flex-direction: column; gap: 6px; }
.field + .field { margin-top: 14px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-row.three { grid-template-columns: 1fr 2fr 1fr; }

.field-label { font-size: 12px; font-weight: 500; color: var(--text-primary); }
.field-hint { font-size: 11px; color: var(--text-tertiary); margin: 0; line-height: 1.4; }
.field-error { font-size: 11px; color: var(--danger); margin: 2px 0 0; }

.input, .textarea, .select {
  width: 100%; background: var(--bg-input);
  border: 1px solid var(--border-default); color: var(--text-primary);
  border-radius: var(--radius-md); padding: 8px 10px; font-size: 13px;
  outline: none; transition: border-color 0.12s, box-shadow 0.12s;
}
.input::placeholder, .textarea::placeholder { color: var(--text-tertiary); }
.input:hover, .textarea:hover, .select:hover { border-color: var(--border-strong); }
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--accent); box-shadow: var(--shadow-glow);
}
.textarea { min-height: 70px; resize: vertical; line-height: 1.5; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a1a1a1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat; background-position: right 10px center; padding-right: 28px;
}
.input.mono, .textarea.mono { font-family: ui-monospace, monospace; }

/* Switch row */
.switch-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 10px 12px;
  background: var(--bg-elevated-2); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}
.switch-row + .switch-row { margin-top: 6px; }
.switch-row-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.switch-row-label { font-size: 13px; font-weight: 500; }
.switch-row-hint { font-size: 11px; color: var(--text-tertiary); margin: 0; }

.switch {
  position: relative; width: 36px; height: 20px;
  background: var(--border-default); border-radius: 999px;
  cursor: pointer; flex-shrink: 0; transition: background 0.18s;
}
.switch input {
  appearance: none; position: absolute; inset: 0; margin: 0;
  cursor: pointer; opacity: 0;
}
.switch::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; background: #fff; border-radius: 50%;
  transition: transform 0.18s; box-shadow: 0 1px 2px rgba(0,0,0,0.4);
}
.switch:has(input:checked) { background: var(--accent); }
.switch:has(input:checked)::after { transform: translateX(16px); }
.switch:has(input:focus-visible) { box-shadow: var(--shadow-glow); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 7px 12px; font-size: 13px; font-weight: 500;
  border-radius: var(--radius-md); border: 1px solid transparent;
  background: transparent; color: var(--text-primary); cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s, transform 0.05s;
  white-space: nowrap; user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.btn-primary { background: var(--accent); color: #03110b; font-weight: 600; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-secondary {
  background: var(--bg-elevated-2); border-color: var(--border-default); color: var(--text-primary);
}
.btn-secondary:hover:not(:disabled) { background: var(--bg-hover); border-color: var(--border-strong); }
.btn-ghost { color: var(--text-secondary); }
.btn-ghost:hover:not(:disabled) { background: var(--bg-hover); color: var(--text-primary); }
.btn-danger {
  background: var(--bg-elevated-2); border-color: var(--border-default); color: var(--danger);
}
.btn-danger:hover:not(:disabled) { background: var(--danger-bg); border-color: var(--danger); }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px; }

.btn-group { display: inline-flex; gap: 6px; flex-wrap: wrap; }

/* Badge */
.badge {
  display: inline-flex; align-items: center; padding: 2px 8px;
  font-size: 11px; font-weight: 600; border-radius: 999px;
  letter-spacing: 0.02em; background: var(--bg-elevated-2);
  color: var(--text-secondary); border: 1px solid var(--border-subtle);
}
.badge.success { background: var(--success-bg); color: var(--success); border-color: transparent; }
.badge.warning { background: var(--warning-bg); color: var(--warning); border-color: transparent; }
.badge.danger { background: var(--danger-bg); color: var(--danger); border-color: transparent; }
.badge.info { background: var(--info-bg); color: var(--info); border-color: transparent; }
.badge.accent { background: var(--accent-muted); color: var(--accent); border-color: transparent; }

/* Result message */
.result {
  margin-top: 12px; padding: 10px 12px; border-radius: var(--radius-md);
  font-size: 12px; background: var(--bg-elevated-2);
  border: 1px solid var(--border-subtle); color: var(--text-secondary);
  line-height: 1.5;
}
.result.success { background: var(--success-bg); color: var(--success); border-color: transparent; }
.result.error { background: var(--danger-bg); color: var(--danger); border-color: transparent; }
.result.warning { background: var(--warning-bg); color: var(--warning); border-color: transparent; }
.result.info { background: var(--info-bg); color: var(--info); border-color: transparent; }

/* List */
.list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.list-item {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 10px 12px;
  background: var(--bg-elevated-2); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}
.list-item-info { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 1; }
.list-item-name { font-weight: 500; font-size: 13px; }
.list-item-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.list-empty {
  padding: 28px 16px; text-align: center; color: var(--text-tertiary);
  font-size: 12px; background: var(--bg-elevated-2);
  border: 1px dashed var(--border-default); border-radius: var(--radius-md);
}

/* Pill tabs */
.pill-tabs {
  display: inline-flex; gap: 4px; padding: 3px;
  background: var(--bg-elevated-2); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); flex-wrap: wrap;
}
.pill-tab {
  padding: 5px 10px; border: 0; background: transparent;
  color: var(--text-secondary); border-radius: var(--radius-sm);
  font-size: 12px; font-weight: 500; cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.pill-tab:hover { color: var(--text-primary); }
.pill-tab.active { background: var(--bg-hover); color: var(--text-primary); }

/* QR */
.qr-box {
  background: var(--bg-elevated-2); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); padding: 16px; text-align: center;
}
.qr-box-title {
  font-size: 12px; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 600; margin: 0 0 8px;
}
.qr-image {
  display: block; width: 200px; height: 200px; margin: 0 auto;
  border-radius: var(--radius-md); background: #fff; padding: 8px;
}
.pairing-code {
  font-family: ui-monospace, monospace; font-size: 24px; font-weight: 700;
  letter-spacing: 0.16em; margin: 8px 0 0; color: var(--accent);
}

/* Avatar */
.avatar-circle {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--bg-elevated-2); display: grid; place-items: center;
  font-weight: 600; font-size: 14px; color: var(--text-primary);
  flex-shrink: 0; border: 1px solid var(--border-subtle); overflow: hidden;
}
.avatar-circle img { width: 100%; height: 100%; object-fit: cover; }
.avatar-circle.lg { width: 64px; height: 64px; font-size: 22px; }
.avatar-circle.xl { width: 80px; height: 80px; font-size: 26px; }

/* Hero (instance dashboard) */
.hero {
  display: grid; grid-template-columns: 1fr 280px; gap: 18px;
  background: var(--bg-elevated); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); padding: 20px;
}
.hero-info { display: flex; flex-direction: column; gap: 14px; }
.hero-meta-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px;
}
.hero-meta {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 12px; background: var(--bg-elevated-2);
  border-radius: var(--radius-md); border: 1px solid var(--border-subtle);
}
.hero-meta-label {
  font-size: 11px; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600;
}
.hero-meta-value { font-size: 13px; font-weight: 500; word-break: break-word; }
.hero-side { display: flex; flex-direction: column; gap: 12px; align-items: center; }
.hero-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Chat */
.chat-shell {
  display: grid; grid-template-columns: 320px 1fr; gap: 0;
  background: var(--bg-elevated); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); overflow: hidden;
  height: calc(100vh - var(--topbar-h) - 48px); min-height: 600px;
}
.chat-aside {
  display: flex; flex-direction: column;
  border-right: 1px solid var(--border-subtle);
  min-height: 0; background: var(--bg-elevated);
}
.chat-aside-header {
  padding: 12px 14px; border-bottom: 1px solid var(--border-subtle);
  display: flex; flex-direction: column; gap: 10px;
}
.chat-aside-title {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.chat-aside-title h2 { font-size: 14px; font-weight: 600; margin: 0; }
.chat-aside-actions { display: flex; gap: 4px; }
.chat-search { position: relative; width: 100%; }
.chat-search svg {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px; color: var(--text-tertiary); pointer-events: none;
}
.chat-search input {
  width: 100%; padding: 7px 10px 7px 32px;
  background: var(--bg-input); border: 1px solid var(--border-default);
  color: var(--text-primary); border-radius: var(--radius-md);
  font-size: 12px; outline: none;
}
.chat-search input:focus { border-color: var(--accent); box-shadow: var(--shadow-glow); }
.chat-filters { display: flex; gap: 4px; }

.chat-list {
  flex: 1; overflow-y: auto; padding: 6px; min-height: 0;
}
.chat-empty-list {
  padding: 28px 16px; text-align: center; color: var(--text-tertiary); font-size: 12px;
}
.chat-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px; border: 0; background: transparent; color: inherit;
  text-align: left; border-radius: var(--radius-md); cursor: pointer;
  transition: background 0.12s; margin-bottom: 2px;
}
.chat-item:hover { background: var(--bg-hover); }
.chat-item.active { background: var(--bg-active); }

.chat-item-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--bg-elevated-2); display: grid; place-items: center;
  font-weight: 600; font-size: 13px; color: var(--text-primary); flex-shrink: 0;
}
.chat-item-body { flex: 1; min-width: 0; }
.chat-item-top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 6px; margin-bottom: 2px;
}
.chat-item-name {
  font-weight: 500; font-size: 13px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.chat-item-time { font-size: 10px; color: var(--text-tertiary); flex-shrink: 0; }
.chat-item-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
}
.chat-item-preview {
  font-size: 12px; color: var(--text-tertiary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  flex: 1; min-width: 0;
}
.chat-item-badges { display: flex; gap: 4px; flex-shrink: 0; }
.chat-item-badge {
  font-size: 10px; padding: 1px 6px; border-radius: 999px;
  background: var(--bg-elevated-2); color: var(--text-tertiary);
}
.chat-item-badge.unread { background: var(--accent); color: var(--bg-base); font-weight: 700; }

.chat-main {
  display: flex; flex-direction: column; min-height: 0; background: var(--bg-base);
}
.chat-thread-header {
  padding: 12px 18px; border-bottom: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-shrink: 0; background: var(--bg-elevated);
}
.chat-thread-info { display: flex; align-items: center; gap: 10px; min-width: 0; }
.chat-thread-name {
  font-size: 14px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.chat-thread-meta { font-size: 11px; color: var(--text-tertiary); white-space: nowrap; }
.chat-thread-actions { display: flex; gap: 6px; flex-shrink: 0; }

.chat-messages {
  flex: 1; overflow-y: auto; padding: 16px 18px;
  min-height: 0; display: flex; flex-direction: column; gap: 6px;
  background: linear-gradient(180deg, var(--bg-base), #050505);
}
.chat-empty-thread {
  margin: auto; text-align: center; color: var(--text-tertiary);
  font-size: 13px; padding: 40px 16px;
}
.chat-day-divider {
  align-self: center; font-size: 10px; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600;
  background: var(--bg-elevated-2); padding: 3px 12px; border-radius: 999px;
  margin: 8px 0;
}
.chat-bubble {
  max-width: 70%; padding: 8px 12px 6px;
  border-radius: var(--radius-md); background: var(--bubble-other);
  border: 1px solid var(--bubble-other-border);
  font-size: 13px; line-height: 1.45; word-wrap: break-word;
  align-self: flex-start;
}
.chat-bubble.me {
  background: var(--bubble-me); border-color: var(--bubble-me-border);
  align-self: flex-end;
}
.chat-bubble-author {
  display: block; font-size: 11px; font-weight: 600;
  color: var(--accent); margin-bottom: 2px;
}
.chat-bubble.me .chat-bubble-author { color: var(--accent-hover); }
.chat-bubble-text { white-space: pre-wrap; word-break: break-word; }
.chat-bubble-time {
  display: block; text-align: right; font-size: 10px;
  color: var(--text-tertiary); margin-top: 3px;
  font-variant-numeric: tabular-nums;
}

.chat-media-image, .chat-media-sticker {
  max-width: 280px; max-height: 320px;
  border-radius: var(--radius-sm); display: block;
}
.chat-media-sticker { max-width: 140px; max-height: 140px; }
.chat-media-audio, .chat-media-video { max-width: 280px; display: block; }
.chat-media-document {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; background: var(--bg-elevated-2);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-sm);
  font-size: 12px;
}
.chat-media-warning { font-size: 11px; color: var(--warning); margin: 4px 0 0; }

.chat-composer {
  padding: 10px 12px; border-top: 1px solid var(--border-subtle);
  display: flex; gap: 8px; align-items: flex-end;
  background: var(--bg-elevated); flex-shrink: 0;
}
.chat-composer-input {
  flex: 1; resize: none; min-height: 36px; max-height: 160px;
  padding: 8px 10px; background: var(--bg-input);
  border: 1px solid var(--border-default); color: var(--text-primary);
  border-radius: var(--radius-md); font-size: 13px;
  outline: none; line-height: 1.5;
}
.chat-composer-input:focus { border-color: var(--accent); box-shadow: var(--shadow-glow); }

/* Sync panel */
.sync-panel {
  background: var(--bg-elevated); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg); padding: 16px 18px;
  display: flex; flex-direction: column; gap: 12px;
}
.sync-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}
.sync-status-info { display: flex; align-items: center; gap: 10px; }
.sync-progress-bar {
  position: relative; height: 6px; width: 100%;
  background: var(--bg-elevated-2); border-radius: 999px; overflow: hidden;
}
.sync-progress-fill {
  position: absolute; inset: 0 auto 0 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 999px; width: 0%; transition: width 0.4s ease;
}
.sync-progress-fill.indeterminate {
  width: 30%; animation: indeterminate 1.4s infinite;
}
@keyframes indeterminate {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}
.sync-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px;
}
.sync-stat {
  background: var(--bg-elevated-2); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); padding: 8px 10px;
}
.sync-stat-label {
  font-size: 10px; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600;
}
.sync-stat-value {
  font-size: 16px; font-weight: 700; margin-top: 2px;
  font-variant-numeric: tabular-nums;
}
.sync-current {
  font-size: 12px; color: var(--text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Sync stat clicável (Erros) */
.sync-stat-clickable {
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, transform 60ms ease;
}
.sync-stat-clickable:hover {
  background: var(--bg-elevated-3, var(--bg-elevated-2));
  border-color: var(--accent-border, var(--border-subtle));
}
.sync-stat-clickable:focus-visible {
  outline: 2px solid var(--accent-border, #4f8cff);
  outline-offset: 2px;
}
.sync-stat-clickable:active { transform: translateY(1px); }
.sync-stat-clickable.has-errors .sync-stat-value { color: var(--danger, #e5484d); }

/* Modal genérico (usado pelos detalhes de erros do sync) */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  padding: 16px;
}
.modal-overlay.hidden { display: none; }
.modal-dialog {
  background: var(--bg-elevated-1, #161616);
  border: 1px solid var(--border-subtle, #2a2a2a);
  border-radius: var(--radius-lg, 10px);
  width: 100%; max-width: 720px;
  max-height: 80vh;
  display: flex; flex-direction: column;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle, #2a2a2a);
}
.modal-title { margin: 0; font-size: 16px; font-weight: 700; }
.modal-close {
  background: transparent; border: 0; color: var(--text-secondary, #aaa);
  font-size: 22px; line-height: 1; cursor: pointer; padding: 4px 8px;
  border-radius: var(--radius-sm, 4px);
}
.modal-close:hover { background: var(--bg-elevated-2, #1f1f1f); color: var(--text-primary, #fff); }
.modal-body { padding: 12px 16px; overflow: auto; }

/* Lista de erros do sync */
.sync-errors-list { display: flex; flex-direction: column; gap: 8px; }
.sync-errors-list .sync-error-item {
  background: var(--bg-elevated-2, #1f1f1f);
  border: 1px solid var(--border-subtle, #2a2a2a);
  border-left: 3px solid var(--danger, #e5484d);
  border-radius: var(--radius-md, 6px);
  padding: 8px 10px;
  font-size: 12px;
}
.sync-errors-list .sync-error-meta {
  display: flex; flex-wrap: wrap; gap: 10px;
  color: var(--text-tertiary, #888); margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.sync-errors-list .sync-error-message {
  color: var(--text-primary, #fff);
  white-space: pre-wrap; word-break: break-word;
  font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
}
.sync-errors-list .sync-error-empty {
  color: var(--text-tertiary, #888);
  font-style: italic;
  padding: 12px;
  text-align: center;
}

/* Webhook URL */
.webhook-url-box {
  margin: 8px 0; padding: 10px 12px;
  background: var(--accent-muted); border: 1px solid var(--accent-border);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column; gap: 4px;
}
.webhook-url-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 600; color: var(--accent);
}
.webhook-url-value {
  font-family: ui-monospace, monospace; font-size: 12px;
  word-break: break-all; user-select: all; color: var(--text-primary);
}

/* Dispatch dynamic lists */
.dyn-list { display: flex; flex-direction: column; gap: 8px; }
.dyn-row {
  display: flex; gap: 6px; align-items: center;
  padding: 8px; background: var(--bg-elevated-2);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
  flex-wrap: wrap;
}
.dyn-row .input, .dyn-row .select { flex: 1; min-width: 100px; }
.dyn-block {
  padding: 12px; background: var(--bg-elevated-2);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
  display: flex; flex-direction: column; gap: 8px;
}
.dyn-block-title {
  font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.06em; font-weight: 600;
  color: var(--text-tertiary); margin: 0;
}

/* Form actions */
.form-actions {
  display: flex; gap: 8px; flex-wrap: wrap;
  padding-top: 14px; margin-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

/* Two-column */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.two-col.aside { grid-template-columns: 2fr 1fr; }

/* Responsive */
@media (max-width: 1024px) {
  :root { --sidebar-w: 64px; }
  .nav-btn span:not(.nav-icon) { display: none; }
  .brand-text { display: none; }
  .nav-label { display: none; }
  .sidebar-footer { display: none; }
  .nav-btn { justify-content: center; padding: 10px; }
  .hero { grid-template-columns: 1fr; }
  .two-col, .two-col.aside { grid-template-columns: 1fr; }
  .chat-shell { grid-template-columns: 280px 1fr; }
}

@media (max-width: 760px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static; height: auto; flex-direction: row;
    overflow-x: auto; padding: 8px;
  }
  .sidebar-footer { display: none; }
  .nav-section { flex-direction: row; }
  .topbar { padding: 0 16px; }
  .content { padding: 16px; }
  .chat-shell {
    grid-template-columns: 1fr; height: auto; min-height: 400px;
  }
  .chat-aside { display: none; }
  .chat-shell.show-list .chat-aside { display: flex; }
  .chat-shell.show-list .chat-main { display: none; }
  .field-row, .field-row.three { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0s !important;
    animation-duration: 0s !important;
  }
}