/* ── TeamTask Design System ── */
:root {
  /* Brand colors (Electric Blue Accent) */
  --brand-50: #eff6ff;
  --brand-100: #dbeafe;
  --brand-200: #bfdbfe;
  --brand-500: #3b82f6;
  --brand-600: #2563eb;
  --brand-700: #1d4ed8;
  --brand-800: #1e40af;
  --brand-900: #1e3a8a;
  --brand-fg: var(--brand-600);
  --brand-bg-subtle: var(--brand-50);

  /* Neutrals */
  --neutral-0: #ffffff;
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;
  --neutral-950: #020617;

  /* Surfaces & Text */
  --bg-canvas: var(--neutral-50);
  --bg-surface: var(--neutral-0);
  --bg-elevated: var(--neutral-0);
  --bg-hover: var(--neutral-100);

  --text-primary: var(--neutral-900);
  --text-muted: var(--neutral-600);
  --text-subtle: var(--neutral-400);

  --border-default: var(--neutral-200);
  --border-strong: var(--neutral-300);

  /* Status Tokens */
  --success-fg: #15803d;
  --success-bg: #dcfce7;
  --success-border: #bbf7d0;

  --warning-fg: #b45309;
  --warning-bg: #fef3c7;
  --warning-border: #fde68a;

  --error-fg: #b91c1c;
  --error-bg: #fee2e2;
  --error-border: #fecaca;

  --info-fg: #1d4ed8;
  --info-bg: #dbeafe;
  --info-border: #bfdbfe;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --ring-focus: 0 0 0 3px rgba(37, 99, 235, 0.25);
  --ring-error: 0 0 0 3px rgba(220, 38, 38, 0.16);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
}

[data-theme="dark"],
.dark {
  --bg-canvas: #0a0e1a;
  --bg-surface: #111827;
  --bg-elevated: #1f2937;
  --bg-hover: rgba(255, 255, 255, 0.05);

  --text-primary: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --border-default: #1f2937;
  --border-strong: #374151;

  --brand-fg: #60a5fa;
  --brand-bg-subtle: rgba(37, 99, 235, 0.18);

  --success-fg: #4ade80;
  --success-bg: rgba(22, 163, 74, 0.2);
  --success-border: rgba(34, 197, 94, 0.3);

  --warning-fg: #fbbf24;
  --warning-bg: rgba(217, 119, 6, 0.2);
  --warning-border: rgba(245, 158, 11, 0.3);

  --error-fg: #f87171;
  --error-bg: rgba(220, 38, 38, 0.2);
  --error-border: rgba(239, 68, 68, 0.3);

  --info-fg: #60a5fa;
  --info-bg: rgba(37, 99, 235, 0.2);
  --info-border: rgba(59, 130, 246, 0.3);

  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 8px -2px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 12px 20px -6px rgba(0, 0, 0, 0.65);
  --shadow-xl: 0 20px 32px -10px rgba(0, 0, 0, 0.7);
  --ring-focus: 0 0 0 3px rgba(96, 165, 250, 0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-canvas: #0a0e1a;
    --bg-surface: #111827;
    --bg-elevated: #1f2937;
    --bg-hover: rgba(255, 255, 255, 0.05);

    --text-primary: #f8fafc;
    --text-muted: #94a3b8;
    --text-subtle: #64748b;

    --border-default: #1f2937;
    --border-strong: #374151;

    --brand-fg: #60a5fa;
    --brand-bg-subtle: rgba(37, 99, 235, 0.18);

    --success-fg: #4ade80;
    --success-bg: rgba(22, 163, 74, 0.2);
    --success-border: rgba(34, 197, 94, 0.3);

    --warning-fg: #fbbf24;
    --warning-bg: rgba(217, 119, 6, 0.2);
    --warning-border: rgba(245, 158, 11, 0.3);

    --error-fg: #f87171;
    --error-bg: rgba(220, 38, 38, 0.2);
    --error-border: rgba(239, 68, 68, 0.3);

    --info-fg: #60a5fa;
    --info-bg: rgba(37, 99, 235, 0.2);
    --info-border: rgba(59, 130, 246, 0.3);

    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 8px -2px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 12px 20px -6px rgba(0, 0, 0, 0.65);
    --shadow-xl: 0 20px 32px -10px rgba(0, 0, 0, 0.7);
    --ring-focus: 0 0 0 3px rgba(96, 165, 250, 0.3);
  }
}

/* ── Base Reset & Setup ── */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-family: var(--font-sans);
  font-size: 14px;
}

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.45;
  min-height: 100vh;
}

input, button, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: var(--brand-fg);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.tabular-nums {
  font-variant-numeric: tabular-nums;
}

/* ── Focus ── */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: none;
  box-shadow: var(--ring-focus);
}

/* ── App Layout ── */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 52px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  gap: 1rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  user-select: none;
}

.brand-icon {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  color: #ffffff;
}

.topbar-center {
  flex: 1;
  max-width: 440px;
  position: relative;
}

.search-input-wrapper {
  position: relative;
  width: 100%;
}

.search-input-wrapper svg {
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 32px;
  padding: 0 2rem 0 2.2rem;
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--text-primary);
  transition: all var(--duration-150) var(--ease-out);
}

.search-input:focus {
  border-color: var(--brand-fg);
  background: var(--bg-surface);
  box-shadow: var(--ring-focus);
}

.search-kbd {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  padding: 1px 4px;
  border-radius: 3px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  color: var(--text-muted);
  pointer-events: none;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 32px;
  padding: 0 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1;
  transition: all var(--duration-150) var(--ease-out);
  white-space: nowrap;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--brand-600);
  color: #ffffff;
  border: 1px solid transparent;
}

.btn-primary:hover:not(:disabled) {
  background: var(--brand-700);
}

.btn-primary:active:not(:disabled) {
  background: var(--brand-800);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-destructive {
  background: var(--error-fg);
  color: #ffffff;
  border: 1px solid transparent;
}

.btn-destructive:hover:not(:disabled) {
  filter: brightness(0.9);
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-md);
  color: var(--text-muted);
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-sm {
  height: 28px;
  padding: 0 0.55rem;
  font-size: 0.75rem;
}

/* ── Main Content Container ── */
.main-content {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Page Header & Stats ── */
.page-header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-title-group h1 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.page-title-group p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 0.15rem;
}

/* ── KPI Grid ── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 0.875rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition: border-color var(--duration-150) var(--ease-out);
}

.kpi-card:hover {
  border-color: var(--border-strong);
}

.kpi-label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kpi-value {
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.kpi-subtext {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

/* ── Quick Add Bar ── */
.quick-add-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 0.65rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  box-shadow: var(--shadow-xs);
  transition: all var(--duration-150) var(--ease-out);
}

.quick-add-card:focus-within {
  border-color: var(--brand-fg);
  box-shadow: var(--ring-focus);
}

.quick-add-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 0.875rem;
  color: var(--text-primary);
  min-width: 140px;
}

.quick-add-input::placeholder {
  color: var(--text-subtle);
}

.quick-add-select,
.quick-add-date {
  height: 28px;
  padding: 0 0.5rem;
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-primary);
  cursor: pointer;
}

.quick-add-date {
  max-width: 125px;
}

/* ── Toolbar & Filters ── */
.toolbar-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 0.6rem 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tabs-group {
  display: flex;
  align-items: center;
  background: var(--bg-canvas);
  padding: 2px;
  border-radius: var(--radius-md);
  gap: 2px;
}

.tab-btn {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--duration-100) var(--ease-out);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-xs);
  font-weight: 600;
}

.tab-count {
  font-size: 0.6875rem;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  background: var(--bg-canvas);
  color: var(--text-muted);
}

.tab-btn.active .tab-count {
  background: var(--brand-bg-subtle);
  color: var(--brand-fg);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.select-filter {
  height: 30px;
  padding: 0 0.65rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: var(--text-primary);
  cursor: pointer;
}

.select-filter:hover {
  border-color: var(--border-strong);
}

/* ── Task List ── */
.task-list-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.task-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.25rem 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.task-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  transition: all var(--duration-150) var(--ease-out);
  position: relative;
}

.task-item:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-xs);
}

.task-item.completed {
  background: var(--bg-canvas);
  opacity: 0.75;
}

.task-checkbox-wrapper {
  padding-top: 2px;
}

.task-checkbox {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--neutral-300);
  background: var(--bg-surface);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--duration-100) var(--ease-out);
  color: #ffffff;
}

.task-checkbox:hover {
  border-color: var(--brand-fg);
}

.task-checkbox.checked {
  background: var(--brand-600);
  border-color: var(--brand-600);
}

.task-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.task-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.task-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.35;
  word-break: break-word;
}

.task-item.completed .task-title {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-description {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
}

.task-meta-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-top: 0.15rem;
  font-size: 0.75rem;
}

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.3;
}

.badge-priority-urgent {
  background: var(--error-bg);
  color: var(--error-fg);
  border: 1px solid var(--error-border);
}

.badge-priority-high {
  background: var(--warning-bg);
  color: var(--warning-fg);
  border: 1px solid var(--warning-border);
}

.badge-priority-medium {
  background: var(--info-bg);
  color: var(--info-fg);
  border: 1px solid var(--info-border);
}

.badge-priority-low {
  background: var(--neutral-100);
  color: var(--neutral-600);
  border: 1px solid var(--neutral-200);
}

.badge-due-overdue {
  background: var(--error-bg);
  color: var(--error-fg);
  border: 1px solid var(--error-border);
  font-weight: 600;
}

.badge-due-today {
  background: var(--warning-bg);
  color: var(--warning-fg);
  border: 1px solid var(--warning-border);
  font-weight: 600;
}

.badge-due-soon {
  background: var(--info-bg);
  color: var(--info-fg);
  border: 1px solid var(--info-border);
}

.badge-due-future {
  background: var(--bg-canvas);
  color: var(--text-muted);
  border: 1px solid var(--border-default);
}

.badge-assignee {
  background: var(--bg-canvas);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  padding: 1px 6px;
}

.badge-assignee.mine {
  background: var(--brand-bg-subtle);
  color: var(--brand-fg);
  border-color: var(--brand-100);
  font-weight: 600;
}

.badge-unassigned {
  background: var(--bg-canvas);
  color: var(--text-subtle);
  border: 1px dashed var(--border-default);
}

.task-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  opacity: 0.3;
  transition: opacity var(--duration-150) var(--ease-out);
}

.task-item:hover .task-actions,
.task-actions:focus-within {
  opacity: 1;
}

/* ── Avatars ── */
.avatar {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background: var(--brand-500);
  color: #ffffff;
  display: grid;
  place-items: center;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  flex-shrink: 0;
}

.avatar-md {
  width: 28px;
  height: 28px;
  font-size: 0.75rem;
}

.avatar-lg {
  width: 36px;
  height: 36px;
  font-size: 0.875rem;
}

/* ── Modal Dialog ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(3px);
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1rem;
  animation: fadeIn var(--duration-150) var(--ease-out);
}

.modal-card {
  width: 100%;
  max-width: 520px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: scaleIn var(--duration-200) var(--ease-out);
}

.modal-header {
  padding: 1.15rem 1.25rem 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-default);
}

.modal-header h2 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--border-default);
  background: var(--bg-canvas);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ── Form Controls ── */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label span.req {
  color: var(--error-fg);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: all var(--duration-150) var(--ease-out);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--brand-fg);
  box-shadow: var(--ring-focus);
}

.form-input.error {
  border-color: var(--error-fg);
  box-shadow: var(--ring-error);
}

.form-error-msg {
  font-size: 0.75rem;
  color: var(--error-fg);
  margin-top: 0.2rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* ── Empty States ── */
.empty-state {
  padding: 3rem 1.5rem;
  text-align: center;
  background: var(--bg-surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.empty-state-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--bg-canvas);
  display: grid;
  place-items: center;
  color: var(--text-subtle);
  margin-bottom: 0.25rem;
}

.empty-state h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.empty-state p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  max-width: 320px;
}

/* ── Auth Container ── */
.auth-container {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: var(--bg-canvas);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.auth-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.auth-header h1 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.auth-header p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.auth-toggle-link {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.5rem;
}

.auth-toggle-link button {
  color: var(--brand-fg);
  font-weight: 500;
  margin-left: 0.25rem;
}

.auth-toggle-link button:hover {
  text-decoration: underline;
}

.demo-pills {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-default);
}

.demo-pills-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-subtle);
  font-weight: 600;
}

.demo-account-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.6rem;
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  text-align: left;
  transition: all var(--duration-100) var(--ease-out);
}

.demo-account-btn:hover {
  border-color: var(--brand-fg);
  background: var(--brand-bg-subtle);
}

/* ── Teammates Drawer / Modal ── */
.teammate-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.teammate-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-md);
  background: var(--bg-canvas);
  border: 1px solid var(--border-default);
}

.teammate-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.teammate-name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
}

.teammate-email {
  font-size: 0.6875rem;
  color: var(--text-muted);
}

/* ── Toast Banner ── */
.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 360px;
}

.toast {
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  background: var(--neutral-900);
  color: var(--neutral-50);
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  animation: slideUp var(--duration-200) var(--ease-out);
}

.dark .toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}

.toast.error {
  background: var(--error-fg);
  color: #ffffff;
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96) translateY(6px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive adjustments ── */
@media (max-width: 640px) {
  .topbar {
    padding: 0 0.85rem;
  }
  .topbar-center {
    display: none;
  }
  .main-content {
    padding: 1rem 0.75rem 3rem;
  }
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
  .toolbar-container {
    flex-direction: column;
    align-items: stretch;
  }
  .tabs-group {
    overflow-x: auto;
  }
}