/* TaskOptic design system "Datum": shared components. Uses tokens.css only.
   Surface-specific layout lives with each surface (site.css, app.css, console.css).
   Spec: docs/design/UI-REVIEW.md section 4. */

/* ---------- 4.1 Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: 1.43;
  font-feature-settings: "cv11" 1, "ss01" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-stretch: var(--display-stretch);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  color: var(--color-text);
  margin: 0;
}
p { margin: 0; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; text-underline-offset: 2px; }
img, svg { max-width: 100%; }
code, kbd, pre, samp, .mono { font-family: var(--font-mono); font-size: 0.9em; }
.num, td.num, th.num, .stat__value { font-variant-numeric: tabular-nums; }
td.num, th.num { text-align: right; }
hr { border: 0; border-top: var(--border-width) solid var(--color-border); margin: var(--space-6) 0; }
::selection { background: var(--color-accent-subtle); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.hidden, [hidden] { display: none !important; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--space-3); top: -100px; z-index: var(--z-toast);
  background: var(--color-surface-raised); color: var(--color-text);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); box-shadow: var(--shadow-md);
}
.skip-link:focus { top: var(--space-3); }

.icon { width: 1rem; height: 1rem; flex: none; display: inline-block; vertical-align: -0.15em; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.icon--sm { width: 0.875rem; height: 0.875rem; }
.icon--lg { width: 1.25rem; height: 1.25rem; }
.icon--xl { width: 2.5rem; height: 2.5rem; stroke-width: 1.5; }

.eyebrow {
  font-size: var(--text-xs); font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--color-text-subtle);
}
.muted { color: var(--color-text-muted); }
.subtle { color: var(--color-text-subtle); }
.stack > * + * { margin-top: var(--space-4); }
.stack--sm > * + * { margin-top: var(--space-2); }
.cluster { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.cluster--between { justify-content: space-between; }
.grow { flex: 1 1 auto; min-width: 0; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Brand mark + wordmark */
.brand { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-text); text-decoration: none; }
.brand:hover { color: var(--color-text); text-decoration: none; }
.brand__mark {
  width: 1.75rem; height: 1.75rem; border-radius: var(--radius-md);
  background: var(--color-accent); color: var(--color-accent-text);
  display: inline-grid; place-items: center; flex: none;
}
.brand__mark .icon { width: 1.125rem; height: 1.125rem; stroke-width: 2.25; }
.brand__name {
  font-family: var(--font-display); font-stretch: var(--display-stretch); font-weight: var(--weight-bold);
  font-size: var(--text-md); letter-spacing: -0.01em; line-height: 1;
}
.brand__suffix { font-weight: var(--weight-medium); color: var(--color-text-muted); }

/* ---------- 4.3 Buttons ---------- */
.btn {
  --btn-bg: var(--color-surface); --btn-fg: var(--color-text); --btn-bd: var(--color-border-strong);
  --btn-bg-hover: var(--color-surface-sunken);
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: var(--control-h-md); padding: 0 var(--space-4);
  font: var(--weight-semibold) var(--text-sm)/1 var(--font-sans);
  color: var(--btn-fg); background: var(--btn-bg);
  border: var(--border-width) solid var(--btn-bd); border-radius: var(--radius-md);
  cursor: pointer; text-decoration: none; white-space: nowrap; user-select: none;
  transition: background-color var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}
.btn:hover { background: var(--btn-bg-hover); color: var(--btn-fg); text-decoration: none; }
.btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.btn:disabled, .btn[aria-disabled="true"] {
  background: var(--color-surface-sunken); color: var(--color-text-subtle);
  border-color: var(--color-border); cursor: not-allowed;
}
.btn .icon { width: 1rem; height: 1rem; }
.btn--primary { --btn-bg: var(--color-accent); --btn-fg: var(--color-accent-text); --btn-bd: var(--color-accent); --btn-bg-hover: var(--color-accent-hover); }
.btn--primary:hover { border-color: var(--color-accent-hover); }
.btn--secondary { }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--color-text-muted); --btn-bd: transparent; }
.btn--ghost:hover { color: var(--color-text); }
.btn--danger { --btn-bg: var(--color-danger); --btn-fg: var(--color-danger-text); --btn-bd: var(--color-danger); --btn-bg-hover: color-mix(in srgb, var(--color-danger) 88%, black); }
.btn--danger-quiet { --btn-bg: transparent; --btn-fg: var(--color-danger); --btn-bd: var(--color-border); --btn-bg-hover: var(--color-danger-subtle); }
.btn--sm { min-height: var(--control-h-sm); padding: 0 var(--space-3); font-size: var(--text-sm); }
.btn--lg { min-height: var(--control-h-lg); padding: 0 var(--space-5); font-size: var(--text-base); }
.btn--block { width: 100%; }
.btn--icon { padding: 0; width: var(--control-h-md); }
.btn--icon.btn--sm { width: var(--control-h-sm); }
.btn[aria-busy="true"] { cursor: progress; }
.btn[aria-busy="true"] .icon { animation: ds-spin 0.8s linear infinite; }
.btn-group { display: inline-flex; flex-wrap: wrap; gap: var(--space-2); }
.btn-group--joined { gap: 0; }
.btn-group--joined > .btn { border-radius: 0; }
.btn-group--joined > .btn + .btn { margin-left: calc(-1 * var(--border-width)); }
.btn-group--joined > .btn:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.btn-group--joined > .btn:last-child { border-radius: 0 var(--radius-md) var(--radius-md) 0; }
@keyframes ds-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .btn[aria-busy="true"] .icon { animation: none; } }

/* ---------- 4.4 Inputs ---------- */
.input, .select, .textarea {
  display: block; width: 100%; min-height: var(--control-h-md);
  padding: var(--space-2) var(--space-3);
  font: var(--weight-regular) var(--text-sm)/1.4 var(--font-sans); color: var(--color-text);
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border-strong); border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}
.textarea { min-height: 6rem; resize: vertical; }
.input--sm, .select--sm { min-height: var(--control-h-sm); padding-top: var(--space-1); padding-bottom: var(--space-1); }
.input--mono { font-family: var(--font-mono); letter-spacing: 0.04em; }
.input::placeholder, .textarea::placeholder { color: var(--color-text-subtle); opacity: 1; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--color-accent); box-shadow: var(--shadow-focus); }
.input:disabled, .select:disabled, .textarea:disabled { background: var(--color-surface-sunken); color: var(--color-text-subtle); cursor: not-allowed; }
.input[aria-invalid="true"], .select[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--color-danger); }
.select {
  appearance: none; -webkit-appearance: none; padding-right: var(--space-8);
  background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%), linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px, 5px 5px; background-repeat: no-repeat;
}
input[type="checkbox"], input[type="radio"] { accent-color: var(--color-accent); width: 1rem; height: 1rem; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field + .field, .field + .field-row, .field-row + .field { margin-top: var(--space-4); }
.field-row { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); }
.label, .field > label { font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--color-text); }
.hint { font-size: var(--text-xs); color: var(--color-text-subtle); }
.error-text { font-size: var(--text-xs); color: var(--color-danger); display: flex; gap: var(--space-1); align-items: center; }
.check { display: flex; align-items: center; gap: var(--space-2); min-height: 1.75rem; font-size: var(--text-sm); cursor: pointer; }
.input-group { display: flex; align-items: stretch; }
.input-group > .input { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.input-group > .btn { border-radius: 0 var(--radius-md) var(--radius-md) 0; margin-left: calc(-1 * var(--border-width)); }
/* A fixed text after an input (e.g. the domain after a company address). */
.input-group__suffix {
  display: inline-flex; align-items: center; padding: 0 var(--space-3); white-space: nowrap;
  font: var(--text-sm)/1 var(--font-mono); color: var(--color-text-muted);
  background: var(--color-surface-sunken); border: var(--border-width) solid var(--color-border-strong);
  border-radius: 0 var(--radius-md) var(--radius-md) 0; margin-left: calc(-1 * var(--border-width));
}
.input-group > .input { min-width: 0; flex: 1 1 auto; }
/* A vertical list of full-width choices (e.g. choose a company). */
.choose-list { list-style: none; margin: var(--space-4) 0 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.choose-list .btn { justify-content: space-between; }
/* A button that reads as an inline link. */
.link-button { background: none; border: 0; padding: 0; font: inherit; color: var(--color-link, var(--color-accent)); text-decoration: underline; cursor: pointer; }
.link-button:focus-visible { outline: none; box-shadow: var(--shadow-focus); border-radius: var(--radius-sm); }
.search { position: relative; }
.search > .icon { position: absolute; left: var(--space-3); top: 50%; transform: translateY(-50%); color: var(--color-text-subtle); pointer-events: none; }
.search > .input { padding-left: calc(var(--space-3) + 1.5rem); }

.switch { position: relative; display: inline-flex; align-items: center; gap: var(--space-2); cursor: pointer; font-size: var(--text-sm); }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch__track { width: 2.25rem; height: 1.25rem; border-radius: var(--radius-full); background: var(--color-border-strong); position: relative; transition: background-color var(--duration-fast) var(--ease-standard); flex: none; }
.switch__track::after { content: ""; position: absolute; top: 2px; left: 2px; width: 1rem; height: 1rem; border-radius: 50%; background: var(--color-surface); transition: transform var(--duration-fast) var(--ease-standard); box-shadow: var(--shadow-sm); }
.switch input:checked + .switch__track { background: var(--color-accent); }
.switch input:checked + .switch__track::after { transform: translateX(1rem); }
.switch input:focus-visible + .switch__track { box-shadow: var(--shadow-focus); }

/* ---------- 4.5 Tables ---------- */
.table-wrap { background: var(--color-surface); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-lg); overflow: auto; }
.table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: var(--text-sm); }
.table th {
  position: sticky; top: 0; z-index: var(--z-raised);
  background: var(--color-surface-sunken); color: var(--color-text-muted);
  font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase;
  text-align: left; height: 2.25rem; padding: 0 var(--space-3); white-space: nowrap;
  border-bottom: var(--border-width) solid var(--color-border);
}
.table td { height: 2.75rem; padding: var(--space-2) var(--space-3); border-bottom: var(--border-width) solid var(--color-border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: var(--color-surface-sunken); }
.table tr.is-selected td { background: var(--color-accent-subtle); }
.table tr.is-selected td:first-child { box-shadow: inset 2px 0 0 var(--color-accent); }
.table--dense td { height: 2.25rem; padding-top: var(--space-1); padding-bottom: var(--space-1); }
.table td.mono, .table .mono { color: var(--color-text-muted); }
.table td.actions-cell { text-align: right; white-space: nowrap; }
.table-empty td { text-align: center; color: var(--color-text-muted); padding: var(--space-8) var(--space-4); height: auto; }

/* ---------- 4.6 Cards ---------- */
.card { background: var(--color-surface); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-lg); min-width: 0; }
.card__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-bottom: var(--border-width) solid var(--color-border); }
.card__head h2, .card__head h3, .card__title { font-size: var(--text-md); font-weight: var(--weight-semibold); }
.card__body { padding: var(--space-5); }
.card__body--flush { padding: 0; }
.card__foot { padding: var(--space-3) var(--space-5); background: var(--color-surface-sunken); border-top: var(--border-width) solid var(--color-border); border-radius: 0 0 var(--radius-lg) var(--radius-lg); display: flex; gap: var(--space-2); justify-content: flex-end; flex-wrap: wrap; }
.card--interactive { display: block; color: var(--color-text); text-decoration: none; transition: border-color var(--duration-fast) var(--ease-standard); }
.card--interactive:hover { border-color: var(--color-accent-border); text-decoration: none; color: var(--color-text); }
.card--interactive:hover .card__title { color: var(--color-accent); }
.card--danger { border-color: color-mix(in srgb, var(--color-danger) 45%, var(--color-border)); }
.tile-icon { width: 2.25rem; height: 2.25rem; border-radius: var(--radius-md); background: var(--color-accent-subtle); color: var(--color-accent); display: inline-grid; place-items: center; flex: none; }
.tile-icon .icon { width: 1.25rem; height: 1.25rem; }
.grid { display: grid; gap: var(--space-4); }
.grid--2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 22rem), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 14rem), 1fr)); }

/* ---------- 4.7 Stat strip ---------- */
.statstrip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); background: var(--color-surface); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
@media (min-width: 1024px) { .statstrip { grid-template-columns: repeat(var(--stat-cols, 4), minmax(0, 1fr)); } }
.stat { padding: var(--space-4) var(--space-5); border-right: var(--border-width) solid var(--color-border); border-bottom: var(--border-width) solid var(--color-border); margin-bottom: calc(-1 * var(--border-width)); margin-right: calc(-1 * var(--border-width)); }
.stat__label { font-size: var(--text-xs); font-weight: var(--weight-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--color-text-muted); }
.stat__value { display: flex; align-items: center; gap: var(--space-2); font-family: var(--font-display); font-stretch: var(--display-stretch); font-weight: var(--weight-bold); font-size: var(--text-2xl); line-height: 1.2; margin-top: var(--space-1); }
.stat__meta { font-size: var(--text-xs); color: var(--color-text-subtle); margin-top: 2px; }
.stat--danger .stat__value { color: var(--color-danger); }
.stat--warning .stat__value { color: var(--color-warning); }

/* ---------- Meters ---------- */
.meter { display: flex; align-items: center; gap: var(--space-2); min-width: 7rem; }
.meter__bar { flex: 1; height: 4px; border-radius: var(--radius-full); background: var(--color-surface-sunken); overflow: hidden; border: 0; appearance: none; }
.meter__fill { display: block; height: 100%; background: var(--color-accent); border-radius: inherit; }
.meter--warning .meter__fill { background: var(--color-warning); }
.meter--danger .meter__fill { background: var(--color-danger); }
.meter__value { font-variant-numeric: tabular-nums; font-size: var(--text-xs); color: var(--color-text-muted); min-width: 3.25rem; text-align: right; }

/* ---------- 4.8 Pills and badges ---------- */
.pill, .state {
  --pill-fg: var(--color-text-muted); --pill-bg: var(--color-surface-sunken);
  display: inline-flex; align-items: center; gap: 6px; height: 1.375rem; padding: 0 var(--space-2);
  border-radius: var(--radius-full); font-size: var(--text-xs); font-weight: var(--weight-semibold);
  line-height: 1; white-space: nowrap; color: var(--pill-fg); background: var(--pill-bg);
  text-transform: none; letter-spacing: 0;
}
.pill::before, .state::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
.pill--ok, .state.live, .state.succeeded, .state.active, .state.passed, .state.upgraded, .state.ok, .state.enrolled { --pill-fg: var(--color-success); --pill-bg: var(--color-success-subtle); }
.pill--info, .state.provisioning, .state.running, .state.queued, .state.planned, .state.invited, .state.pending { --pill-fg: var(--color-info); --pill-bg: var(--color-info-subtle); }
.pill--warn, .state.suspended, .state.halted, .state.warning, .state.canary, .state.degraded { --pill-fg: var(--color-warning); --pill-bg: var(--color-warning-subtle); }
.pill--danger, .state.failed, .state.destroyed, .state.unreachable, .state.critical, .state.error, .state.disabled { --pill-fg: var(--color-danger); --pill-bg: var(--color-danger-subtle); }
.pill--neutral, .state.draft, .state.ready, .state.unknown, .state.none { --pill-fg: var(--color-text-muted); --pill-bg: var(--color-surface-sunken); }
.pill--outline { --pill-fg: var(--color-text-muted); --pill-bg: transparent; border: var(--border-width) solid var(--color-border); }
.pill--outline::before, .pill--plain::before { display: none; }
.pill--accent { --pill-fg: var(--color-accent); --pill-bg: var(--color-accent-subtle); }
.badge { display: inline-grid; place-items: center; min-width: 1.125rem; height: 1.125rem; padding: 0 5px; border-radius: var(--radius-full); background: var(--color-accent); color: var(--color-accent-text); font-size: 0.6875rem; font-weight: var(--weight-bold); font-variant-numeric: tabular-nums; line-height: 1; }

/* ---------- 4.9 Tabs ---------- */
.tabs { display: flex; gap: var(--space-1); border-bottom: var(--border-width) solid var(--color-border); overflow-x: auto; scrollbar-width: none; scroll-snap-type: x proximity; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  appearance: none; border: 0; background: none; cursor: pointer; scroll-snap-align: start;
  height: 2.5rem; padding: 0 var(--space-3); display: inline-flex; align-items: center; gap: var(--space-2);
  font: var(--weight-medium) var(--text-sm)/1 var(--font-sans); color: var(--color-text-muted);
  white-space: nowrap; border-radius: var(--radius-md) var(--radius-md) 0 0; text-decoration: none;
}
.tab:hover { color: var(--color-text); text-decoration: none; }
.tab[aria-selected="true"], .tab.is-active { color: var(--color-text); font-weight: var(--weight-semibold); box-shadow: inset 0 -2px 0 var(--color-accent); }
.tab:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.tab__count { font-size: var(--text-xs); color: var(--color-text-subtle); font-variant-numeric: tabular-nums; }
.tabpanel { padding-top: var(--space-5); }

/* ---------- 4.10 Dialogs ---------- */
.dialog {
  border: var(--border-width) solid var(--color-border); border-radius: var(--radius-lg); padding: 0;
  background: var(--color-surface-raised); color: var(--color-text); box-shadow: var(--shadow-lg);
  width: min(35rem, calc(100vw - 2rem)); max-height: calc(100vh - 4rem);
}
.dialog--sm { width: min(25rem, calc(100vw - 2rem)); }
.dialog--lg { width: min(55rem, calc(100vw - 2rem)); }
.dialog::backdrop { background: var(--color-overlay); }
.dialog__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-4) var(--space-6); border-bottom: var(--border-width) solid var(--color-border); }
.dialog__head h2 { font-size: var(--text-lg); }
.dialog__body { padding: var(--space-5) var(--space-6); overflow: auto; }
.dialog__foot { display: flex; justify-content: flex-end; gap: var(--space-2); padding: var(--space-4) var(--space-6); border-top: var(--border-width) solid var(--color-border); }
@media (max-width: 767px) {
  .dialog, .dialog--sm, .dialog--lg { width: 100vw; max-width: 100vw; height: 100dvh; max-height: 100dvh; border-radius: 0; margin: 0; }
}
/* A form dialog shown as the right drawer (PATTERNS 4.1): same <dialog>, docked right. */
.dialog.dialog--drawer {
  position: fixed; inset: 0 0 0 auto; margin: 0 0 0 auto; height: 100dvh; max-height: 100dvh; width: min(32.5rem, 100vw); max-width: 100vw;
  border: 0; border-left: var(--border-width) solid var(--color-border); border-radius: 0; box-shadow: var(--shadow-lg);
  animation: drawer-in var(--duration-slow) var(--ease-standard);
}
.dialog.dialog--drawer[open] { display: flex; flex-direction: column; }
.dialog.dialog--drawer > form { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.dialog.dialog--drawer .dialog__head { padding: var(--space-4) var(--space-5); }
.dialog.dialog--drawer .dialog__body { flex: 1; min-height: 0; overflow: auto; padding: var(--space-5); }
.dialog.dialog--drawer .dialog__foot { justify-content: flex-start; padding: var(--space-4) var(--space-5); }
.dialog--drawer-s { width: min(22.5rem, 100vw); }
.dialog.dialog--drawer-l { width: min(45rem, 100vw); }
@keyframes drawer-in { from { transform: translateX(2rem); opacity: 0; } to { transform: none; opacity: 1; } }
@media (max-width: 767px) { .dialog.dialog--drawer { width: 100vw; } }

/* ---------- Drawer (right sheet) and nav drawer ---------- */
.drawer {
  position: fixed; inset: 0 0 0 auto; z-index: var(--z-modal); width: min(30rem, 100vw);
  background: var(--color-surface-raised); border-left: var(--border-width) solid var(--color-border); box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column; transform: translateX(100%); visibility: hidden;
  transition: transform var(--duration-slow) var(--ease-standard), visibility 0s linear var(--duration-slow);
}
.drawer.is-open { transform: none; visibility: visible; transition: transform var(--duration-slow) var(--ease-standard), visibility 0s; }
.drawer__head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-5); border-bottom: var(--border-width) solid var(--color-border); }
.drawer__head h2 { font-size: var(--text-lg); }
.drawer__body { padding: var(--space-5); overflow: auto; flex: 1; }
/* Ledger (docs/design/PATTERNS.md 4.2): primary action first, Cancel after it, as in FuelFact. */
.drawer__foot { padding: var(--space-4) var(--space-5); border-top: var(--border-width) solid var(--color-border); display: flex; justify-content: flex-start; gap: var(--space-2); }
.drawer--s { width: min(22.5rem, 100vw); }
.drawer--m { width: min(32.5rem, 100vw); }
.drawer--l { width: min(45rem, 100vw); }
@media (max-width: 767px) { .drawer, .drawer--s, .drawer--m, .drawer--l { width: 100vw; } }
.drawer__close { appearance: none; border: 0; background: none; color: var(--color-text-muted); cursor: pointer; padding: var(--space-1); border-radius: var(--radius-sm); display: inline-flex; }
.drawer__close:hover { color: var(--color-text); background: var(--color-surface-sunken); }
.drawer__close:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.drawer__errors { margin-bottom: var(--space-4); }
.scrim { position: fixed; inset: 0; background: var(--color-overlay); z-index: var(--z-overlay); opacity: 0; visibility: hidden; transition: opacity var(--duration-base) var(--ease-standard), visibility 0s linear var(--duration-base); }
.scrim.is-open { opacity: 1; visibility: visible; transition: opacity var(--duration-base) var(--ease-standard), visibility 0s; }

/* ---------- Menus ---------- */
.menu { position: absolute; z-index: var(--z-dropdown); min-width: 13rem; padding: var(--space-1); background: var(--color-surface-raised); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-md); }
.menu__item { display: flex; align-items: center; gap: var(--space-2); width: 100%; min-height: 2.25rem; padding: 0 var(--space-3); border: 0; background: none; border-radius: var(--radius-sm); color: var(--color-text); font: var(--weight-regular) var(--text-sm)/1.2 var(--font-sans); text-align: left; cursor: pointer; text-decoration: none; }
.menu__item:hover, .menu__item:focus-visible { background: var(--color-surface-sunken); color: var(--color-text); text-decoration: none; outline: none; }
.menu__item--danger { color: var(--color-danger); }
.menu__sep { height: 1px; background: var(--color-border); margin: var(--space-1) 0; }
.menu__label { padding: var(--space-2) var(--space-3) var(--space-1); }

/* ---------- 4.11 Toasts ---------- */
/* Top right (PATTERNS.md 10, as in FuelFact), below the top bar. */
.toasts { position: fixed; right: var(--space-4); top: calc(var(--topbar-h, 3.5rem) + var(--space-3)); z-index: var(--z-toast); display: flex; flex-direction: column; gap: var(--space-3); width: min(22.5rem, calc(100vw - 2rem)); }
@media (max-width: 767px) { .toasts { left: 50%; right: auto; transform: translateX(-50%); } }
.toast-ds { display: flex; gap: var(--space-3); padding: var(--space-3) var(--space-4); background: var(--color-surface-raised); border: var(--border-width) solid var(--color-border); border-left: 3px solid var(--toast-accent, var(--color-info)); border-radius: var(--radius-md); box-shadow: var(--shadow-md); }
.toast-ds--ok { --toast-accent: var(--color-success); }
.toast-ds--danger { --toast-accent: var(--color-danger); }
.toast-ds--warn { --toast-accent: var(--color-warning); }

/* ---------- Banners (inline messages) ---------- */
.banner { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); border: var(--border-width) solid var(--banner-bd, var(--color-border)); background: var(--banner-bg, var(--color-surface-sunken)); color: var(--banner-fg, var(--color-text)); font-size: var(--text-sm); }
.banner > .icon { margin-top: 2px; color: var(--banner-icon, currentColor); }
.banner__body { flex: 1; min-width: 0; }
.banner__close { appearance: none; border: 0; background: none; color: inherit; cursor: pointer; padding: 2px; border-radius: var(--radius-sm); opacity: 0.8; }
.banner__close:hover { opacity: 1; }
.banner--ok { --banner-bg: var(--color-success-subtle); --banner-fg: var(--color-success); --banner-bd: color-mix(in srgb, var(--color-success) 30%, transparent); }
.banner--danger { --banner-bg: var(--color-danger-subtle); --banner-fg: var(--color-danger); --banner-bd: color-mix(in srgb, var(--color-danger) 30%, transparent); }
.banner--warn { --banner-bg: var(--color-warning-subtle); --banner-fg: var(--color-warning); --banner-bd: color-mix(in srgb, var(--color-warning) 30%, transparent); }
.banner--info { --banner-bg: var(--color-info-subtle); --banner-fg: var(--color-info); --banner-bd: color-mix(in srgb, var(--color-info) 30%, transparent); }

/* ---------- 4.12 Empty states ---------- */
.empty { max-width: 28rem; margin: var(--space-12) auto; text-align: center; display: flex; flex-direction: column; align-items: center; gap: var(--space-3); }
.empty > .icon { width: 2.5rem; height: 2.5rem; color: var(--color-text-subtle); stroke-width: 1.5; }
.empty h2, .empty h3 { font-size: var(--text-md); }
.empty p { color: var(--color-text-muted); }
.empty .cluster { justify-content: center; margin-top: var(--space-2); }
.empty--inline { margin: var(--space-6) auto; }

/* ---------- 4.13 Page header / 4.14 Breadcrumbs ---------- */
.pagehead { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--space-3) var(--space-6); margin-bottom: var(--space-6); }
.pagehead__main { min-width: 0; }
.pagehead__title { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.pagehead h1 { font-size: var(--text-xl); }
.pagehead__meta { margin-top: var(--space-1); color: var(--color-text-muted); font-size: var(--text-sm); display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-2); }
.pagehead__meta > * + *::before { content: "·"; margin-right: var(--space-2); color: var(--color-text-subtle); }
.pagehead__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.crumbs ol { list-style: none; margin: 0 0 var(--space-2); padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-1); font-size: var(--text-sm); color: var(--color-text-muted); }
.crumbs li + li::before { content: "›"; margin-right: var(--space-1); color: var(--color-text-subtle); }
.crumbs a { color: var(--color-text-muted); }
.crumbs a:hover { color: var(--color-text); }
.crumbs [aria-current="page"] { color: var(--color-text); }

/* ---------- 4.15 Theme toggle ---------- */
.taskoptic-theme-toggle, .theme-toggle {
  display: inline-flex; align-items: center; gap: 2px; padding: 2px; height: 2rem;
  border: var(--border-width) solid var(--color-border); border-radius: var(--radius-full); background: var(--color-surface-sunken);
}
.taskoptic-theme-toggle [data-theme-option], .theme-toggle [data-theme-option] {
  appearance: none; border: 0; background: transparent; color: var(--color-text-muted); cursor: pointer;
  height: 100%; min-width: 1.75rem; padding: 0 var(--space-2); border-radius: var(--radius-full);
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-1);
  font: var(--weight-medium) var(--text-xs)/1 var(--font-sans);
}
.taskoptic-theme-toggle [data-theme-option]:hover, .theme-toggle [data-theme-option]:hover { color: var(--color-text); }
.taskoptic-theme-toggle [data-theme-option].is-active, .theme-toggle [data-theme-option].is-active { background: var(--color-surface-raised); color: var(--color-text); box-shadow: var(--shadow-sm); }
.taskoptic-theme-toggle .icon, .theme-toggle .icon { width: 0.875rem; height: 0.875rem; }
.theme-toggle__text { display: none; }
@media (min-width: 768px) { .theme-toggle--labelled .theme-toggle__text { display: inline; } }

/* ---------- Key/value, copy lines, code ---------- */
.kv { display: grid; grid-template-columns: max-content 1fr; gap: var(--space-2) var(--space-4); font-size: var(--text-sm); margin: 0; }
.kv dt { color: var(--color-text-muted); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.copyline { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-2) var(--space-2) var(--space-3); background: var(--color-surface-sunken); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-md); font-family: var(--font-mono); font-size: var(--text-sm); }
.copyline > :first-child { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.codeblock { margin: 0; padding: var(--space-4); background: var(--color-surface-sunken); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-md); font-family: var(--font-mono); font-size: var(--text-xs); line-height: 1.6; overflow: auto; max-height: 28rem; white-space: pre; color: var(--color-text); }
details > summary { cursor: pointer; }
details > summary::marker { color: var(--color-text-subtle); }

/* ---------- Steps ---------- */
.steps { display: flex; gap: var(--space-2); list-style: none; padding: 0; margin: 0 0 var(--space-5); counter-reset: step; font-size: var(--text-xs); color: var(--color-text-subtle); }
.steps li { display: flex; align-items: center; gap: var(--space-2); counter-increment: step; }
.steps li + li::before { content: ""; width: 1.5rem; height: 1px; background: var(--color-border); }
.steps li > span::before { content: counter(step); display: inline-grid; place-items: center; width: 1.375rem; height: 1.375rem; margin-right: var(--space-2); border-radius: 50%; border: var(--border-width) solid var(--color-border-strong); font-weight: var(--weight-semibold); }
.steps li.is-current { color: var(--color-text); font-weight: var(--weight-semibold); }
.steps li.is-current > span::before { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-accent-text); }
.steps li.is-done > span::before { background: var(--color-accent-subtle); border-color: var(--color-accent-border); color: var(--color-accent); }

/* ---------- Auth layout (login, enrol, error; app and console) ---------- */
.auth { min-height: 100vh; min-height: 100dvh; display: grid; grid-template-columns: 1fr; background: var(--color-bg); }
@media (min-width: 1024px) { .auth--split { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); } }
.auth__panel { display: none; background: var(--color-surface); color: var(--color-text); border-right: var(--border-width) solid var(--color-border); padding: 0 var(--space-12) var(--space-10); flex-direction: column; gap: var(--space-10); }
.auth__panel > .brand:first-child { min-height: var(--topbar-h); flex: none; }
.auth__panel > :nth-child(2) { margin-top: auto; }
.auth__panel > :last-child { margin-bottom: auto; }
@media (min-width: 1024px) { .auth--split .auth__panel { display: flex; } }
.auth__main { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: var(--space-6) var(--space-4); gap: var(--space-6); position: relative; }
.auth__top { position: absolute; top: var(--space-4); right: var(--space-4); left: var(--space-4); display: flex; justify-content: space-between; align-items: center; }
.auth__card { width: min(25rem, 100%); background: var(--color-surface); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-8); }
.auth__card h1 { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.auth__card .btn--primary { width: 100%; }
.proof { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-4); }
.proof li { display: flex; gap: var(--space-3); align-items: flex-start; }
.proof .icon { color: var(--color-accent); margin-top: 2px; }
.divider { display: flex; align-items: center; gap: var(--space-3); color: var(--color-text-subtle); font-size: var(--text-xs); margin: var(--space-5) 0; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--color-border); }

/* ---------- Touch targets ---------- */
@media (pointer: coarse) {
  .btn, .input, .select, .menu__item, .tab, .icon-btn { min-height: var(--touch-min); }
  .btn--icon { width: var(--touch-min); }
  .input, .select, .textarea { font-size: var(--text-base); }
}

/* ==========================================================================
   Ledger components (docs/design/PATTERNS.md; behaviour in assets/js/ledger.js)
   ========================================================================== */

/* Page header: a one-line context sentence under the title (PATTERNS 8). */
.pagehead__context { margin-top: var(--space-2); color: var(--color-text-muted); font-size: var(--text-sm); max-width: 48rem; }

/* Toolbar: search, up to three quick filters, "All filters", spacer, sort (PATTERNS 5.1). */
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin-bottom: var(--space-3); }
.toolbar__spacer { flex: 1 1 auto; }
.toolbar .search .input { width: 15rem; max-width: 100%; height: 2rem; }
.toolbar__pair { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); color: var(--color-text-muted); }
.filter-btn {
  appearance: none; height: 2rem; padding: 0 var(--space-3); display: inline-flex; align-items: center; gap: var(--space-1);
  border: var(--border-width) dashed var(--color-border-strong); border-radius: var(--radius-md); background: transparent;
  font: var(--weight-regular) var(--text-sm)/1 var(--font-sans); color: var(--color-text-muted); cursor: pointer; white-space: nowrap;
}
.filter-btn:hover { color: var(--color-text); border-color: var(--color-text-subtle); }
.filter-btn.is-set { border-style: solid; border-color: var(--color-accent-border, var(--color-accent)); color: var(--color-text); background: var(--color-accent-subtle); }
.filter-btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.filter-summary { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin: calc(-1 * var(--space-1)) 0 var(--space-3); font-size: var(--text-sm); color: var(--color-text-muted); }

/* Ledger table: group rows, a trailing row menu, the saved-row flash. */
.table tr.table__group td { height: auto; padding: var(--space-2) var(--space-3); background: var(--color-surface-sunken); color: var(--color-text-muted); font-size: var(--text-xs); font-weight: var(--weight-medium); }
.table tbody tr.table__group:hover td { background: var(--color-surface-sunken); }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table tr.is-clickable { cursor: pointer; }
.table .row-name { font-weight: var(--weight-medium); color: var(--color-text); }
.table .row-sub { display: block; font-size: var(--text-xs); color: var(--color-text-muted); }
.rowmenu { appearance: none; border: 0; background: none; width: 2rem; height: 2rem; border-radius: var(--radius-sm); color: var(--color-text-subtle); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.rowmenu:hover { background: var(--color-surface-sunken); color: var(--color-text); }
.rowmenu:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
@keyframes ledger-flash { from { background: var(--color-accent-subtle); } to { background: transparent; } }
.table tr.is-flash td { animation: ledger-flash 2s var(--ease-standard); }
.text-attention { color: var(--color-warning); }

/* Paging: "1–50 of 172" and previous/next (PATTERNS 5.1). */
.pager { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-3) var(--space-1) 0; font-size: var(--text-sm); color: var(--color-text-muted); }
.pager__buttons { display: inline-flex; gap: var(--space-2); }

/* Inline edit: a value that turns into an input (PATTERNS 4.3). */
.inline-edit { display: inline-flex; align-items: center; gap: var(--space-2); min-width: 0; }
.inline-edit__trigger { appearance: none; border: 0; background: none; padding: 2px; border-radius: var(--radius-sm); color: var(--color-text-subtle); cursor: pointer; display: inline-flex; }
.inline-edit__trigger:hover { color: var(--color-text); background: var(--color-surface-sunken); }
.inline-edit__trigger:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.inline-edit__form { display: inline-flex; align-items: center; gap: var(--space-2); }
.inline-edit__form .input { height: 2rem; min-width: 14rem; }

/* Needs attention: issues worded as the fix (PATTERNS 5.3). */
.attention { border: var(--border-width) solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.attention__head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-3) var(--space-4); border-bottom: var(--border-width) solid var(--color-border); font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.attention__list { list-style: none; margin: 0; padding: 0; }
.attention__item { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); font-size: var(--text-sm); }
.attention__item + .attention__item { border-top: var(--border-width) solid var(--color-border); }
.attention__dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--color-warning); flex: none; }
.attention__item > a, .attention__item > .btn { margin-left: auto; white-space: nowrap; }

/* KPI tiles: overview pages only (PATTERNS 5.4). */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: var(--space-4); }
.kpi { padding: var(--space-4); border: var(--border-width) solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.kpi__label { font-size: var(--text-sm); color: var(--color-text-muted); }
.kpi__value { margin-top: var(--space-1); font-size: var(--text-2xl, 1.625rem); font-weight: var(--weight-semibold); font-variant-numeric: tabular-nums; color: var(--color-text); }
.kpi__note { margin-top: 2px; font-size: var(--text-xs); color: var(--color-text-muted); }
@media (max-width: 40rem) {
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
  .kpis .kpi { padding: var(--space-3); }
}

/* Forms declared from a field list (ledger.js form()). */
.form-stack { display: flex; flex-direction: column; gap: var(--space-5); }
.form-stack .field { margin: 0; }
.form-stack .field__optional { font-weight: var(--weight-regular); color: var(--color-text-subtle); }
.form-stack .field__error { margin-top: var(--space-1); font-size: var(--text-xs); color: var(--color-danger); }
.form-stack .input[aria-invalid="true"], .form-stack .select[aria-invalid="true"] { border-color: var(--color-danger); }
.form-stack fieldset { border: 0; margin: 0; padding: 0; }
.form-stack legend { padding: 0; margin-bottom: var(--space-2); font-size: var(--text-sm); font-weight: var(--weight-medium); }
.drawer__section { padding-top: var(--space-2); border-top: var(--border-width) solid var(--color-border); }
.drawer__section:first-child { padding-top: 0; border-top: 0; }
.drawer__section h3 { font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.form-note { padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface-sunken); font-size: var(--text-sm); color: var(--color-text-muted); }

/* Activity: sentence rows (PATTERNS 6). */
.activity { list-style: none; margin: 0; padding: 0; font-size: var(--text-sm); }
.activity__item { display: flex; justify-content: space-between; gap: var(--space-4); padding: var(--space-3) 0; border-bottom: var(--border-width) solid var(--color-border); }
.activity__when { color: var(--color-text-subtle); white-space: nowrap; }

/* Help on demand (PATTERNS 8, GATES-SCHEDULE G13): a quiet "?" beside a feature opens a short guide in the drawer. */
.help-link { display: inline-flex; align-items: center; justify-content: center; inline-size: 1.25rem; block-size: 1.25rem; padding: 0; border: var(--border-width) solid var(--color-border); border-radius: var(--radius-full); background: transparent; color: var(--color-text-muted); font: inherit; font-size: var(--text-xs); font-weight: var(--weight-semibold); line-height: 1; cursor: pointer; vertical-align: middle; }
.help-link:hover { color: var(--color-text); border-color: var(--color-border-strong); background: var(--color-surface-sunken); }
.help-link:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.help-guide { display: flex; flex-direction: column; gap: var(--space-4); }
.help-guide__intro { margin: 0; color: var(--color-text); }
.help-guide h3 { margin: 0 0 var(--space-1); font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.help-guide p { margin: 0; color: var(--color-text-muted); line-height: 1.55; }