/* ============================================================================
   axiaMail — app.css
   Components: layout, cards, buttons, forms, tables, badges, modals, toasts,
   command palette, navigation, charts helpers.
   ============================================================================ */

/* ---------- Layout ---------- */
.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  grid-template-rows: 56px 1fr;
  min-height: 100vh;
}
.app-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: var(--s-4);
  padding: 0 var(--s-6);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
}
.app-sidebar {
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  padding: var(--s-4) var(--s-3);
  overflow-y: auto;
  max-height: calc(100vh - 56px);
  position: sticky;
  top: 56px;
}
.app-main {
  padding: var(--s-6) var(--s-8);
  max-width: 1600px;
  width: 100%;
  margin-inline: auto;
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; grid-template-rows: 56px auto 1fr; }
  .app-sidebar { position: static; max-height: none; border-right: none; border-bottom: 1px solid var(--border); }
  .app-main { padding: var(--s-4); }
}

/* ---------- Brand ---------- */
.brand {
  display: flex; align-items: center; gap: var(--s-2);
  font-weight: 700; font-size: var(--fs-md); letter-spacing: var(--tracking-tight);
}
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px var(--accent-glow);
  position: relative;
}
.brand-mark::after {
  content: ''; position: absolute; inset: 3px; border-radius: 3px;
  background: var(--bg-0);
}

/* ---------- Sidebar nav ---------- */
.nav { display: flex; flex-direction: column; gap: var(--s-1); }
.nav-section-title {
  font-size: var(--fs-xs); color: var(--text-2); text-transform: uppercase;
  letter-spacing: var(--tracking-wide); padding: var(--s-3) var(--s-3) var(--s-1);
}
.nav-item {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  transition: all var(--dur-1) var(--ease);
  cursor: pointer;
  position: relative;
}
.nav-item:hover { background: var(--bg-2); color: var(--text-0); }
.nav-item.active {
  background: linear-gradient(90deg, var(--accent-glow-soft), transparent);
  color: var(--accent);
}
.nav-item.active::before {
  content: ''; position: absolute; left: 0; top: 20%; bottom: 20%;
  width: 2px; background: var(--accent); border-radius: 2px;
  box-shadow: 0 0 8px var(--accent-glow);
}
.nav-item svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-item-badge {
  margin-left: auto; font-size: var(--fs-xs); color: var(--text-2);
  font-variant-numeric: tabular-nums;
}

/* ---------- Cards / panels ---------- */
.card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--s-5);
  position: relative;
  overflow: hidden;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--s-4); gap: var(--s-4);
}
.card-title { font-size: var(--fs-lg); font-weight: 600; letter-spacing: var(--tracking-tight); }
.card-subtitle { color: var(--text-1); font-size: var(--fs-sm); margin-top: var(--s-1); }
.card-glow {
  box-shadow: var(--shadow-glow);
}
.card-glow-strong {
  box-shadow: var(--shadow-glow-strong);
}
.card-interactive {
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease);
  cursor: pointer;
}
.card-interactive:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-strong);
}

/* Conic sweep hover for premium cards */
.card-sweep::before {
  content: ''; position: absolute; inset: -1px; border-radius: inherit;
  background: conic-gradient(from var(--angle, 0deg),
    transparent, var(--accent-glow), transparent 30%);
  opacity: 0; transition: opacity var(--dur-3);
  z-index: -1; pointer-events: none;
}
.card-sweep:hover::before { opacity: 1; animation: sweep 2s linear infinite; }
@property --angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }
@keyframes sweep { to { --angle: 360deg; } }

/* ---------- Grid helpers ---------- */
.grid { display: grid; gap: var(--s-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
.stack { display: flex; flex-direction: column; gap: var(--s-3); }
.stack-lg { display: flex; flex-direction: column; gap: var(--s-6); }
.row { display: flex; align-items: center; gap: var(--s-3); }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); }
.spacer { flex: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: var(--s-2) var(--s-4);
  border-radius: var(--radius-sm);
  font-weight: 500; font-size: var(--fs-sm);
  transition: all var(--dur-1) var(--ease);
  cursor: pointer; user-select: none;
  border: 1px solid transparent;
  position: relative;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn svg { width: 14px; height: 14px; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #4fd8e2);
  color: var(--bg-0);
  font-weight: 600;
  box-shadow: 0 0 0 1px var(--accent-glow), 0 4px 16px -4px var(--accent-glow);
}
.btn-primary:hover:not(:disabled) {
  box-shadow: 0 0 0 1px var(--accent), 0 8px 24px -4px var(--accent-glow);
  transform: translateY(-1px);
}
.btn-primary:active:not(:disabled) { transform: translateY(0); }

.btn-secondary {
  background: var(--bg-2);
  color: var(--text-0);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg-3);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--text-1);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg-2);
  color: var(--text-0);
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: rgba(255, 93, 115, 0.3);
}
.btn-danger:hover:not(:disabled) {
  background: rgba(255, 93, 115, 0.1);
  border-color: var(--danger);
}

.btn-sm { padding: var(--s-1) var(--s-3); font-size: var(--fs-xs); }
.btn-lg { padding: var(--s-3) var(--s-6); font-size: var(--fs-md); }
.btn-icon { padding: var(--s-2); aspect-ratio: 1; }

/* ---------- Forms ---------- */
.form-group { display: flex; flex-direction: column; gap: var(--s-1); }
.form-label {
  font-size: var(--fs-sm); font-weight: 500; color: var(--text-1);
  display: flex; align-items: center; gap: var(--s-2);
}
.form-hint { font-size: var(--fs-xs); color: var(--text-2); margin-top: var(--s-1); }
.form-error { font-size: var(--fs-xs); color: var(--danger); margin-top: var(--s-1); }

.input, .select, .textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--s-2) var(--s-3);
  color: var(--text-0);
  font-size: var(--fs-sm);
  width: 100%;
  transition: all var(--dur-1) var(--ease);
  font-family: inherit;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow-soft);
}
.input:hover:not(:focus), .select:hover:not(:focus), .textarea:hover:not(:focus) {
  border-color: var(--border-strong);
}
.input-mono { font-family: var(--font-mono); }
.textarea { min-height: 120px; resize: vertical; }

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239aa7bd' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--s-3) center;
  padding-right: var(--s-8);
}

.checkbox, .radio {
  width: 18px; height: 18px;
  appearance: none;
  background: var(--bg-2);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-xs);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: all var(--dur-1) var(--ease);
}
.radio { border-radius: 50%; }
.checkbox:checked, .radio:checked {
  background: var(--accent);
  border-color: var(--accent);
}
.checkbox:checked::after {
  content: ''; position: absolute; left: 5px; top: 1px;
  width: 5px; height: 10px;
  border: solid var(--bg-0); border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.radio:checked::after {
  content: ''; position: absolute; inset: 4px; border-radius: 50%;
  background: var(--bg-0);
}

/* Toggle switch */
.switch {
  position: relative; width: 40px; height: 22px;
  background: var(--bg-3); border-radius: var(--radius-full);
  cursor: pointer; transition: all var(--dur-2) var(--ease);
  border: 1px solid var(--border);
}
.switch::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--text-1); transition: all var(--dur-2) var(--ease);
}
.switch.on { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 12px var(--accent-glow); }
.switch.on::after { left: 20px; background: var(--bg-0); }

/* ---------- Tables ---------- */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--fs-sm);
}
.table th, .table td {
  padding: var(--s-3) var(--s-4);
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.table th {
  font-weight: 500; color: var(--text-1); font-size: var(--fs-xs);
  text-transform: uppercase; letter-spacing: var(--tracking-wide);
  background: var(--bg-1); position: sticky; top: 0; z-index: 1;
}
.table tr:hover td { background: rgba(120, 160, 220, 0.04); }
.table td.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-mono); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: var(--s-1);
  padding: 2px var(--s-2);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs); font-weight: 500;
  background: var(--bg-3); color: var(--text-1);
  border: 1px solid var(--border);
  line-height: 1.5;
}
.badge-ok { background: rgba(108, 255, 184, 0.1); color: var(--success); border-color: rgba(108, 255, 184, 0.25); }
.badge-warn { background: rgba(255, 200, 87, 0.1); color: var(--warning); border-color: rgba(255, 200, 87, 0.25); }
.badge-err { background: rgba(255, 93, 115, 0.1); color: var(--danger); border-color: rgba(255, 93, 115, 0.25); }
.badge-info { background: rgba(124, 249, 255, 0.1); color: var(--accent); border-color: rgba(124, 249, 255, 0.25); }
.badge-dim { background: transparent; color: var(--text-2); border-color: var(--border); }

.dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-2);
}
.dot-ok { background: var(--success); box-shadow: 0 0 6px var(--success); }
.dot-warn { background: var(--warning); box-shadow: 0 0 6px var(--warning); }
.dot-err { background: var(--danger); box-shadow: 0 0 6px var(--danger); }
.dot-pulse { animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 50% { transform: scale(1.3); opacity: 0.7; } }

/* ---------- Stat tiles ---------- */
.stat {
  display: flex; flex-direction: column; gap: var(--s-1);
  padding: var(--s-4) var(--s-5);
}
.stat-label {
  font-size: var(--fs-xs); color: var(--text-2);
  text-transform: uppercase; letter-spacing: var(--tracking-wide);
}
.stat-value {
  font-size: var(--fs-2xl); font-weight: 700;
  font-variant-numeric: tabular-nums; font-family: var(--font-mono);
  letter-spacing: var(--tracking-tighter);
  background: linear-gradient(135deg, var(--text-0), var(--text-1));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-delta { font-size: var(--fs-xs); display: flex; align-items: center; gap: var(--s-1); }
.stat-delta.up { color: var(--success); }
.stat-delta.down { color: var(--danger); }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  z-index: var(--z-modal); display: grid; place-items: center;
  animation: fadein var(--dur-2) var(--ease);
}
.modal {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--s-6);
  min-width: 480px; max-width: 90vw; max-height: 90vh; overflow: auto;
  box-shadow: var(--shadow-lg);
  animation: modal-in var(--dur-3) var(--ease-out-expo);
}
@keyframes fadein { from { opacity: 0; } }
@keyframes modal-in { from { opacity: 0; transform: translateY(20px) scale(0.97); } }

/* ---------- Toast ---------- */
.toasts {
  position: fixed; top: var(--s-4); right: var(--s-4);
  display: flex; flex-direction: column; gap: var(--s-2);
  z-index: var(--z-toast); pointer-events: none;
}
.toast {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--s-3) var(--s-4);
  font-size: var(--fs-sm);
  display: flex; align-items: center; gap: var(--s-3);
  min-width: 280px; max-width: 400px;
  box-shadow: var(--shadow-md);
  animation: toast-in var(--dur-3) var(--ease-out-expo);
  pointer-events: auto;
}
.toast.leaving { animation: toast-out var(--dur-2) var(--ease) forwards; }
.toast.ok    { border-left: 3px solid var(--success); }
.toast.warn  { border-left: 3px solid var(--warning); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info  { border-left: 3px solid var(--accent); }
@keyframes toast-in { from { opacity: 0; transform: translateX(20px); } }
@keyframes toast-out { to { opacity: 0; transform: translateX(20px); } }

/* ---------- Command Palette ---------- */
.palette-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  z-index: var(--z-palette);
  display: grid; place-items: start center;
  padding-top: 10vh;
  animation: fadein var(--dur-2) var(--ease);
}
.palette {
  background: var(--bg-1);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: min(640px, 92vw);
  box-shadow: var(--shadow-lg), 0 0 80px -20px var(--accent-glow);
  overflow: hidden;
  animation: palette-in var(--dur-3) var(--ease-out-expo);
}
@keyframes palette-in { from { opacity: 0; transform: translateY(-8px) scale(0.98); } }
.palette-input {
  width: 100%;
  padding: var(--s-4) var(--s-5);
  background: transparent;
  border: none;
  font-size: var(--fs-lg);
  color: var(--text-0);
  border-bottom: 1px solid var(--border);
}
.palette-input:focus { outline: none; }
.palette-list { max-height: 50vh; overflow-y: auto; padding: var(--s-2); }
.palette-item {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm); color: var(--text-1);
  cursor: pointer;
}
.palette-item.active { background: var(--bg-2); color: var(--text-0); }
.palette-item.active .palette-item-shortcut { opacity: 1; }
.palette-item-shortcut {
  margin-left: auto; font-family: var(--font-mono); font-size: var(--fs-xs);
  color: var(--text-2); opacity: 0.5;
}
.palette-group {
  font-size: var(--fs-xs); color: var(--text-2);
  text-transform: uppercase; letter-spacing: var(--tracking-wide);
  padding: var(--s-3) var(--s-3) var(--s-1);
}

/* ---------- Kbd ---------- */
.kbd {
  display: inline-block; min-width: 18px; text-align: center;
  padding: 1px 6px; border: 1px solid var(--border);
  border-bottom-width: 2px; border-radius: 4px;
  font-family: var(--font-mono); font-size: var(--fs-xs);
  background: var(--bg-2); color: var(--text-1); line-height: 1.4;
}

/* ---------- Skeleton (loading) ---------- */
.skeleton {
  background: linear-gradient(90deg, var(--bg-2) 0%, var(--bg-3) 50%, var(--bg-2) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
  border-radius: var(--radius-xs);
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- Chart helpers ---------- */
.chart-axis { stroke: var(--border); stroke-width: 1; }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 2; filter: drop-shadow(0 0 4px var(--accent-glow)); }
.chart-area { fill: url(#chart-gradient); }
.chart-tick { fill: var(--text-2); font-size: 10px; font-family: var(--font-mono); }
.chart-bar { fill: var(--accent); opacity: 0.8; transition: opacity var(--dur-1); }
.chart-bar:hover { opacity: 1; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: var(--s-1); border-bottom: 1px solid var(--border); margin-bottom: var(--s-5); }
.tab {
  padding: var(--s-3) var(--s-4); cursor: pointer;
  color: var(--text-1); font-size: var(--fs-sm); font-weight: 500;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: all var(--dur-1) var(--ease);
}
.tab:hover { color: var(--text-0); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- Copy button ---------- */
.copy-field {
  display: flex; align-items: center; gap: var(--s-2);
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--s-2) var(--s-3); font-family: var(--font-mono);
  font-size: var(--fs-xs); overflow: hidden;
}
.copy-field-value {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  user-select: all;
}
.copy-btn {
  background: transparent; border: none; color: var(--text-2);
  cursor: pointer; padding: 2px; display: flex; align-items: center;
}
.copy-btn:hover { color: var(--accent); }
.copy-btn.copied { color: var(--success); }

/* ---------- Progress ---------- */
.progress {
  height: 4px; width: 100%;
  background: var(--bg-3); border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-bar {
  height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 8px var(--accent-glow);
  border-radius: var(--radius-full);
  transition: width var(--dur-3) var(--ease);
}

/* ---------- Tooltip ---------- */
[data-tip] { position: relative; }
[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute; bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%);
  background: var(--bg-3); color: var(--text-0);
  padding: var(--s-1) var(--s-2); border-radius: var(--radius-xs);
  font-size: var(--fs-xs); white-space: nowrap;
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  pointer-events: none; z-index: var(--z-overlay);
  animation: fadein var(--dur-2);
}

/* ---------- Empty state ---------- */
.empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--s-12) var(--s-6); text-align: center; gap: var(--s-3);
  color: var(--text-2);
}
.empty-icon {
  width: 64px; height: 64px; opacity: 0.4;
  animation: float 4s ease-in-out infinite;
}
@keyframes float { 50% { transform: translateY(-6px); } }
.empty-title { font-size: var(--fs-lg); color: var(--text-1); font-weight: 600; }

/* ---------- Utility ---------- */
.hidden, [hidden] { display: none !important; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: var(--s-1); }
.mt-2 { margin-top: var(--s-2); } .mt-3 { margin-top: var(--s-3); }
.mt-4 { margin-top: var(--s-4); } .mt-6 { margin-top: var(--s-6); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-xs { font-size: var(--fs-xs); }
.text-sm { font-size: var(--fs-sm); }
.text-lg { font-size: var(--fs-lg); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

/* ============================================================================
   Admin UI — condensed density overrides (scoped to .app-shell)
   Shrinks spacing, font sizes, card padding across the admin panel.
   Webmail (.mail-app) is unaffected.
   ============================================================================ */
.app-shell {
  grid-template-columns: 212px 1fr;
  grid-template-rows: 44px 1fr;
}
.app-shell .app-header {
  padding: 0 var(--s-4);
  gap: var(--s-3);
  height: 44px;
}
.app-shell .app-sidebar {
  padding: var(--s-3) var(--s-2);
  max-height: calc(100vh - 44px);
  top: 44px;
}
.app-shell .app-main {
  padding: var(--s-4) var(--s-5);
  max-width: 1400px;
}
@media (max-width: 900px) {
  .app-shell { grid-template-rows: 44px auto 1fr; }
  .app-shell .app-main { padding: var(--s-3); }
}

/* Brand + header */
.app-shell .brand { font-size: var(--fs-sm); }
.app-shell .brand-mark { width: 18px; height: 18px; border-radius: 5px; }
.app-shell .brand-mark::after { inset: 2.5px; border-radius: 2.5px; }

/* Sidebar nav */
.app-shell .nav { gap: 2px; }
.app-shell .nav-section-title {
  font-size: 10px;
  letter-spacing: 0.1em;
  padding: var(--s-3) var(--s-2) 4px;
}
.app-shell .nav-item {
  padding: 6px var(--s-2);
  font-size: 12px;
  border-radius: 6px;
  gap: var(--s-2);
}
.app-shell .nav-item svg { width: 14px; height: 14px; }
.app-shell .nav-item.active::before { width: 2px; top: 22%; bottom: 22%; }

/* Stack / grid spacing */
.app-shell .stack { gap: var(--s-2); }
.app-shell .stack-lg { gap: var(--s-4); }
.app-shell .grid { gap: var(--s-3); }

/* Card — tighter */
.app-shell .card {
  padding: var(--s-3) var(--s-4);
  border-radius: 10px;
}
.app-shell .card-header {
  margin-bottom: var(--s-3);
  gap: var(--s-3);
}
.app-shell .card-title {
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-0);
}
.app-shell .card-subtitle { font-size: 11px; margin-top: 2px; }

/* Headings */
.app-shell h1 {
  font-size: var(--fs-lg);
  letter-spacing: -0.02em;
  font-weight: 700;
}
.app-shell h2 { font-size: var(--fs-md); }
.app-shell h3 { font-size: var(--fs-sm); }

/* Stats */
.app-shell .stat { gap: 2px; }
.app-shell .stat-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.app-shell .stat-value {
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.app-shell .stat-delta { font-size: 10px; }

/* Buttons */
.app-shell .btn {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 6px;
  gap: 6px;
}
.app-shell .btn svg { width: 13px; height: 13px; }
.app-shell .btn-sm { padding: 3px 9px; font-size: 11px; }
.app-shell .btn-lg { padding: 8px 16px; font-size: var(--fs-sm); }

/* Forms */
.app-shell .form-group { gap: 3px; }
.app-shell .form-label { font-size: 11px; font-weight: 500; }
.app-shell .form-hint { font-size: 10px; }
.app-shell .input,
.app-shell .select,
.app-shell .textarea {
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 6px;
}
.app-shell .textarea { min-height: 90px; }

/* Tables — denser rows */
.app-shell .table { font-size: 12px; }
.app-shell .table th,
.app-shell .table td {
  padding: 7px 12px;
}
.app-shell .table th {
  font-size: 10px;
  letter-spacing: 0.08em;
}

/* Muted / text helpers */
.app-shell .muted.mt-1,
.app-shell .muted.mt-2 { font-size: 12px; }
.app-shell .text-sm { font-size: 11px; }
.app-shell .text-xs { font-size: 10px; }

/* Badge / dot */
.app-shell .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

/* Command palette search button in header */
.app-shell .app-header .btn-sm .kbd {
  font-size: 10px;
  padding: 1px 5px;
}

/* ============================================================================
   Velzon-inspired viewport patterns — page headers, colored stat cards,
   sparklines, card action menus, tabs, ranked lists, activity timeline,
   health grid. Scoped: most classes auto-apply; `.page-header` + variants use
   design tokens so they adapt to light/dark theme automatically.
   ============================================================================ */

/* ---------- Page header ---------- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--s-4);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.page-header-inner { min-width: 0; flex: 1; }
.page-breadcrumb {
  display: flex; align-items: center; gap: 4px;
  font-size: 11px;
  color: var(--text-2);
  margin-bottom: 4px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.page-breadcrumb a { color: var(--text-1); transition: color var(--dur-1); }
.page-breadcrumb a:hover { color: var(--accent); }
.page-breadcrumb-sep { color: var(--text-3); }
.page-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-0);
  margin: 0;
  line-height: 1.2;
}
.page-title .wave { display: inline-block; animation: wave 2s ease-in-out infinite; transform-origin: 70% 70%; }
@keyframes wave { 0%, 60%, 100% { transform: rotate(0); } 10%, 30% { transform: rotate(14deg); } 20% { transform: rotate(-8deg); } }
.page-subtitle { color: var(--text-2); font-size: 12px; margin-top: 4px; }
.page-actions { display: flex; gap: var(--s-2); align-items: center; flex-shrink: 0; }

/* ---------- Stat cards (Velzon-inspired, colored accents) ---------- */
.stat-card {
  position: relative;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: var(--s-3) var(--s-4);
  overflow: hidden;
  transition: transform var(--dur-2), box-shadow var(--dur-2);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 100% 0%, var(--card-accent, transparent), transparent 60%);
  opacity: 0.15;
  pointer-events: none;
}
.stat-card-header {
  display: flex; align-items: center; gap: var(--s-2);
  margin-bottom: var(--s-2);
}
.stat-card-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: grid; place-items: center;
  background: var(--card-accent-bg, var(--bg-2));
  color: var(--card-accent, var(--accent));
  border: 1px solid var(--card-accent-border, var(--border));
}
.stat-card-icon svg { width: 16px; height: 16px; }
.stat-card-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-2);
  font-weight: 500;
}
.stat-card-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-0);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  margin-bottom: 4px;
}
.stat-card-foot {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px;
  flex-wrap: wrap;
}
.stat-card-foot .sparkline {
  margin-left: auto;
  width: 84px; height: 24px;
  color: var(--card-accent, var(--accent));
}
.stat-card-link {
  margin-left: auto;
  font-size: 11px;
  color: var(--card-accent, var(--accent));
  font-weight: 500;
}
.stat-card-link:hover { text-decoration: underline; }

/* Per-card accent palette */
.stat-card-cyan   { --card-accent: #7cf9ff; --card-accent-bg: rgba(124,249,255,0.1);  --card-accent-border: rgba(124,249,255,0.2); }
.stat-card-violet { --card-accent: #b48cff; --card-accent-bg: rgba(180,140,255,0.1);  --card-accent-border: rgba(180,140,255,0.22); }
.stat-card-green  { --card-accent: #6cffb8; --card-accent-bg: rgba(108,255,184,0.1);  --card-accent-border: rgba(108,255,184,0.22); }
.stat-card-blue   { --card-accent: #a2d2ff; --card-accent-bg: rgba(162,210,255,0.1);  --card-accent-border: rgba(162,210,255,0.22); }
.stat-card-orange { --card-accent: #ffc857; --card-accent-bg: rgba(255,200,87,0.12);  --card-accent-border: rgba(255,200,87,0.25); }
.stat-card-pink   { --card-accent: #ff8ba7; --card-accent-bg: rgba(255,139,167,0.12); --card-accent-border: rgba(255,139,167,0.25); }

/* Trend badge */
.trend {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.trend.up   { color: var(--success); background: rgba(108,255,184,0.1); border: 1px solid rgba(108,255,184,0.22); }
.trend.down { color: var(--danger);  background: rgba(255,93,115,0.1);  border: 1px solid rgba(255,93,115,0.22); }

/* ---------- Mini-stat (compact side cards) ---------- */
.mini-stat { padding: var(--s-3) var(--s-4); }
.mini-stat-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.mini-stat-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-2);
  font-weight: 500;
}
.mini-stat-svg { color: var(--text-2); }
.mini-stat-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-0);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}
.mini-stat-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
}
.mini-stat-link:hover { text-decoration: underline; }
.mini-stat.accent-success { border-left: 3px solid var(--success); }
.mini-stat.accent-danger  { border-left: 3px solid var(--danger); }
.mini-stat.accent-warning { border-left: 3px solid var(--warning); }
.mini-stat.accent-teal    { border-left: 3px solid #2dd4bf; }
.mini-stat.accent-success .mini-stat-svg { color: var(--success); }
.mini-stat.accent-danger  .mini-stat-svg { color: var(--danger); }

/* ---------- Card header right-side controls ---------- */
.card-head-right { display: flex; align-items: center; gap: var(--s-2); position: relative; }

/* Tab group (sliding pill) */
.tab-group {
  display: inline-flex;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px;
  gap: 0;
}
.tab {
  padding: 4px 10px;
  background: transparent;
  border: none;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-1);
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all var(--dur-1);
  letter-spacing: 0.02em;
}
.tab:hover { color: var(--text-0); }
.tab.active {
  background: var(--bg-1);
  color: var(--accent);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2), 0 0 0 1px var(--border-strong);
}

/* Kebab menu */
.card-action {
  width: 28px; height: 28px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-2);
  display: grid; place-items: center;
  transition: all var(--dur-1);
}
.card-action:hover { background: var(--bg-2); color: var(--text-0); border-color: var(--border); }
.card-menu {
  position: absolute;
  top: calc(100% + 4px); right: 0;
  min-width: 160px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  padding: 4px;
  z-index: var(--z-overlay);
}
.card-menu button {
  display: flex; align-items: center; gap: 6px;
  width: 100%;
  padding: 6px 10px;
  background: transparent;
  border: none;
  border-radius: 5px;
  text-align: left;
  font-size: 12px;
  color: var(--text-1);
  cursor: pointer;
}
.card-menu button:hover { background: var(--bg-2); color: var(--text-0); }

/* ---------- Dashboard layout grids ---------- */
.dashboard-main-grid { grid-template-columns: 2fr 1fr; gap: var(--s-3); }
.dashboard-main-grid .dashboard-volume { grid-column: 1; }
@media (max-width: 1100px) {
  .dashboard-main-grid { grid-template-columns: 1fr; }
}
.dashboard-second-grid { gap: var(--s-3); }

/* Chart legend */
.dashboard-chart-legend {
  display: flex; gap: var(--s-4);
  padding: var(--s-2) 0;
  font-size: 11px;
  color: var(--text-2);
}
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; }
.legend-dot.sent { background: var(--accent); box-shadow: 0 0 6px var(--accent-glow); }
.legend-dot.recv { background: var(--accent-2); box-shadow: 0 0 6px rgba(180,140,255,0.35); }

/* ---------- Ranked list (Top domains) ---------- */
.ranked-list { display: flex; flex-direction: column; gap: 2px; }
.ranked-item {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 8px 10px;
  border-radius: 6px;
  transition: background var(--dur-1);
  color: inherit;
}
.ranked-item:hover { background: var(--bg-2); }
.ranked-rank {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg-2);
  color: var(--text-1);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
}
.ranked-item:nth-child(1) .ranked-rank { background: linear-gradient(135deg, #fbbf24, #f59e0b); color: #7c2d12; }
.ranked-item:nth-child(2) .ranked-rank { background: linear-gradient(135deg, #cbd5e1, #94a3b8); color: #1e293b; }
.ranked-item:nth-child(3) .ranked-rank { background: linear-gradient(135deg, #fb923c, #ea580c); color: #fff7ed; }
.ranked-body { flex: 1; min-width: 0; }
.ranked-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-0);
  margin-bottom: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ranked-bar {
  height: 4px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
}
.ranked-bar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width var(--dur-3) var(--ease);
}
.ranked-val {
  font-size: 11px;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

/* ---------- Health grid ---------- */
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--warning);
  box-shadow: 0 0 8px rgba(255,200,87,0.5);
  animation: pulse-anim 2s ease-in-out infinite;
}
.pulse-dot.ok { background: var(--success); box-shadow: 0 0 8px rgba(108,255,184,0.5); }
@keyframes pulse-anim {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}
.health-grid { display: flex; flex-direction: column; gap: 4px; }
.health-row {
  display: flex; align-items: center; gap: var(--s-2);
  padding: 4px 8px;
  border-radius: 5px;
  transition: background var(--dur-1);
}
.health-row:hover { background: var(--bg-2); }
.health-icon {
  width: 18px; height: 18px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 10px; font-weight: 700;
  flex-shrink: 0;
}
.health-success { background: rgba(108,255,184,0.15); color: var(--success); }
.health-danger  { background: rgba(255,93,115,0.15);  color: var(--danger); }
.health-warning { background: rgba(255,200,87,0.15); color: var(--warning); }
.health-name { flex: 1; font-size: 11px; }
.health-val { flex-shrink: 0; }

/* ---------- Activity timeline ---------- */
.timeline {
  position: relative;
  padding-left: 18px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 9px; top: 4px; bottom: 4px;
  width: 1px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  padding: 6px 0 6px 14px;
  display: flex;
  gap: var(--s-2);
}
.timeline-dot {
  position: absolute;
  left: -18px;
  top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg-1);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  color: var(--text-2);
}
.timeline-dot svg { width: 10px; height: 10px; }
.timeline-info    .timeline-dot { background: rgba(124,249,255,0.12);  border-color: var(--accent); color: var(--accent); }
.timeline-success .timeline-dot { background: rgba(108,255,184,0.12);  border-color: var(--success); color: var(--success); }
.timeline-warning .timeline-dot { background: rgba(255,200,87,0.12);   border-color: var(--warning); color: var(--warning); }
.timeline-danger  .timeline-dot { background: rgba(255,93,115,0.12);   border-color: var(--danger); color: var(--danger); }
.timeline-body { flex: 1; min-width: 0; }
.timeline-title { font-size: 12px; color: var(--text-0); }
.timeline-title .mono { font-weight: 500; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .page-header { flex-direction: column; align-items: stretch; }
  .page-actions { flex-wrap: wrap; }
  .dashboard-main-grid { grid-template-columns: 1fr; }
}

/* ============================================================================
   Deliverability Score widget (domain detail)
   ============================================================================ */
.deliv-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: var(--s-5);
  padding: var(--s-4) var(--s-5) !important;
  align-items: center;
}
@media (max-width: 720px) {
  .deliv-card { grid-template-columns: 1fr; text-align: center; }
}

.deliv-gauge-col {
  position: relative;
  width: 140px; height: 140px;
  margin: 0 auto;
}
.deliv-gauge {
  width: 100%; height: 100%;
  transform: rotate(0deg);
}
.deliv-gauge-center {
  position: absolute;
  inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  pointer-events: none;
}
.deliv-score {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.deliv-grade {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
  font-weight: 700;
  margin-top: 4px;
}

.deliv-buckets-head { margin-bottom: var(--s-3); }
.deliv-buckets-title {
  font-size: var(--fs-md);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.deliv-buckets-sub { margin-top: 2px; }

.deliv-buckets-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s-3) var(--s-4);
}

.deliv-bucket { display: flex; flex-direction: column; gap: 4px; }
.deliv-bucket-head {
  display: flex; justify-content: space-between; align-items: baseline;
}
.deliv-bucket-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-1);
  font-weight: 500;
}
.deliv-bucket-score {
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-0);
}
.deliv-bucket-bar {
  height: 5px;
  background: var(--bg-3);
  border-radius: 3px;
  overflow: hidden;
}
.deliv-bucket-bar > div {
  height: 100%;
  transition: width var(--dur-3) var(--ease-out-expo);
  border-radius: inherit;
  box-shadow: 0 0 6px currentColor;
}
.deliv-bucket-detail {
  line-height: 1.4;
  min-height: 28px;   /* 2 lines reserved so cards align vertically */
}

/* Mini deliverability bar — domains list column */
.deliv-mini {
  display: inline-flex; align-items: center; gap: 8px;
  min-width: 100px;
}
.deliv-mini-bar {
  flex: 1;
  height: 5px;
  background: var(--bg-3);
  border-radius: 3px;
  overflow: hidden;
}
.deliv-mini-bar > div {
  height: 100%;
  width: var(--w, 0%);
  background: var(--c, var(--accent));
  box-shadow: 0 0 4px var(--c, var(--accent));
  transition: width var(--dur-3);
  border-radius: inherit;
}
.deliv-mini .mono { font-weight: 700; font-size: 12px; min-width: 26px; text-align: right; }

/* ============================================================
   Setup dialog (admin → users → show)
   ============================================================ */
.setup-dialog {
    background: transparent;
    border: none;
    padding: 0;
    max-width: min(900px, 96vw);
    max-height: 92vh;
    border-radius: 14px;
}
.setup-dialog::backdrop {
    background: rgba(5, 8, 14, 0.82);
    backdrop-filter: blur(10px);
}
.setup-dialog-inner {
    background: var(--bg-2, #141a24);
    border: 1px solid var(--border, rgba(120,160,220,0.12));
    border-radius: 14px;
    padding: 28px;
    box-shadow: 0 20px 80px -20px rgba(0,0,0,0.7), 0 0 0 1px var(--border);
    max-height: 92vh;
    overflow: auto;
}
.setup-grid {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 32px;
    align-items: start;
}
@media (max-width: 780px) {
    .setup-grid { grid-template-columns: 1fr; }
}
.setup-qr-col { text-align: center; }
.setup-qr {
    padding: 14px;
    background: #fff;
    border-radius: 10px;
    display: inline-block;
    line-height: 0;
}
.setup-qr svg { max-width: 240px; height: auto; }
.setup-hint {
    margin-top: 20px;
    padding: 12px 14px;
    background: rgba(124,249,255,0.04);
    border: 1px solid rgba(124,249,255,0.12);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-1, #9aa7bd);
}
.setup-hint code {
    background: rgba(255,255,255,0.04);
    padding: 2px 6px;
    border-radius: 4px;
}
.kv-row { gap: 12px; align-items: center; padding: 6px 0; }
.kv-label { font-size: 13px; color: var(--text-1, #9aa7bd); min-width: 120px; }
.kv-val-wrap { display: flex; gap: 6px; align-items: center; flex: 1; min-width: 0; }
.kv-val {
    flex: 1;
    font-family: var(--font-mono, ui-monospace);
    font-size: 12px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border, rgba(120,160,220,0.12));
    padding: 6px 10px;
    border-radius: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.icon-btn {
    background: transparent;
    border: 1px solid var(--border, rgba(120,160,220,0.12));
    color: var(--text-1, #9aa7bd);
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all .15s;
}
.icon-btn:hover {
    color: var(--accent, #7cf9ff);
    border-color: var(--accent, #7cf9ff);
    background: rgba(124,249,255,0.05);
}
.row.gap-sm { display: flex; gap: 8px; }
.stack-sm > * + * { margin-top: 4px; }
.mt-md { margin-top: 16px; }
.mb-md { margin-bottom: 16px; }
.mb-sm { margin-bottom: 8px; }
.mt-sm { margin-top: 8px; }
.text-xs { font-size: 11px; }