/* App shell styles. All values come from tokens.css — colors from the palette
   tokens, sizes from the modular type scale, spacing from the 4px-base scale
   (grid canon §2.1: no arbitrary values). */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: var(--text-base);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--leading);
  background: var(--color-bg);
  color: var(--color-ink);
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

/* --- Type scale (typography canon §3: hierarchy via size/weight/space) ---- */

h1 {
  font-size: var(--fs-h1);
  line-height: var(--leading-tight);
  margin: var(--space-4) 0 var(--space-6);
  text-wrap: balance;
}

h2 {
  font-size: var(--fs-h2);
  line-height: var(--leading-tight);
  margin: var(--space-8) 0 var(--space-3);
  text-wrap: balance;
}

p {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-accent-ink);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
}

.skip-link:focus {
  left: var(--space-2);
  z-index: 10;
}

/* --- Chrome -------------------------------------------------------------- */

.site-header {
  display: flex;
  flex-wrap: wrap; /* six nav links must reflow, not overlap, at phone widths */
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
  border-bottom: 1px solid var(--color-rule);
  background: var(--color-surface);
}

.brand {
  font-weight: 600;
  font-size: var(--fs-body);
  color: var(--color-ink);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.site-nav a {
  font-size: var(--fs-caption);
}

.header-controls {
  display: flex;
  gap: var(--space-2);
}

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6) var(--space-8);
}

/* --- Buttons: ONE quiet default + ONE saturated primary per screen
   (colour canon §2: the accent earns its keep on small areas) -------------- */

.control-btn {
  font: inherit;
  font-size: var(--fs-caption);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-ink);
  cursor: pointer;
}

.control-btn:hover {
  border-color: var(--color-accent);
}

.btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 600;
}

.btn-primary:hover {
  filter: brightness(1.08);
}

/* --- Notes & metadata ----------------------------------------------------- */

.placeholder-note,
.date-note,
.carry-note,
.deadline-label,
.handoff-link {
  font-size: var(--fs-caption);
}

.placeholder-note,
.date-note,
.deadline-label {
  color: var(--color-muted);
}

.date-note,
.carry-note {
  font-variant-numeric: tabular-nums;
}

.carry-note {
  color: var(--color-warn);
  font-weight: 600;
}

/* --- Forms ---------------------------------------------------------------- */

.capture-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  margin-bottom: var(--space-8);
}

.capture-form input[type="text"] {
  flex: 1 1 14rem;
}

.capture-form input,
.login-form input,
.handoff-form input,
.handoff-form textarea,
.respond-form input,
.task-row select,
.triage-option input[type="date"] {
  font: inherit;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-ink);
}

.login-form,
.handoff-form,
.respond-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 24rem;
  margin-bottom: var(--space-6);
}

.handoff-form {
  max-width: 34rem;
}

.login-form label,
.handoff-form label,
.respond-form label {
  font-size: var(--fs-caption);
  color: var(--color-muted);
  margin-top: var(--space-2);
}

.initiative-set {
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.initiative-set legend {
  font-size: var(--fs-caption);
  color: var(--color-muted);
  padding: 0 var(--space-1);
}

.form-error {
  color: var(--color-danger);
  font-size: var(--fs-caption);
}

/* --- Task rows ------------------------------------------------------------ */

.task-list {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
}

.task-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-rule);
}

.task-title {
  flex: 1 1 12rem;
}

.task-row select {
  width: 3.5rem;
  text-align: center;
  padding: var(--space-1);
}

.due-strip {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-4);
  margin-bottom: var(--space-6);
}

.cal-strip {
  border-left: 3px solid var(--color-rule);
  padding-left: var(--space-4);
  margin-bottom: var(--space-6);
}

.cal-strip h2 {
  margin-top: 0;
}

.cal-time {
  min-width: 6rem;
}

.due-strip h2 {
  margin-top: 0;
}

.waiting-drawer {
  margin-bottom: var(--space-6);
  color: var(--color-muted);
  font-size: var(--fs-caption);
}

.waiting-drawer summary {
  cursor: pointer;
}

.waiting-on-others {
  border-top: 1px solid var(--color-rule);
  padding-top: var(--space-4);
}

/* --- Triage --------------------------------------------------------------- */

.triage-form fieldset {
  border: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: var(--measure);
}

.triage-option {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
}

.triage-disabled {
  color: var(--color-muted);
}

/* --- Cards & explainers ---------------------------------------------------- */

.request-card {
  background: var(--color-surface);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-6);
}

.request-card h2 {
  margin-top: 0;
}

.respond-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.intro-card {
  background: var(--color-surface);
  border: 1px solid var(--color-rule);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-6);
}

.intro-card h2 {
  margin-top: 0;
}

/* Newcomer explainers (kit Directive 19): tappable, dotted underline. */
.explain {
  margin: 0 0 var(--space-4);
  font-size: var(--fs-caption);
  color: var(--color-muted);
  max-width: var(--measure);
}

.explain summary {
  cursor: pointer;
  display: inline;
  border-bottom: 1px dotted var(--color-muted);
}

.explain[open] summary {
  color: var(--color-ink);
}

.explain p {
  margin: var(--space-2) 0 0;
}

/* --- Messages -------------------------------------------------------------- */

.messages {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
}

.message {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-rule);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.message-error {
  border-left-color: var(--color-danger);
}

/* --- Motion --------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  .control-btn,
  a {
    transition: border-color 120ms ease, color 120ms ease;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- Phase 6: meetings, review, print picker ------------------------------ */

.stacked-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 66ch;
  margin-block: var(--space-3);
}

.stacked-form textarea {
  font: inherit;
  padding: var(--space-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
}

.picker-sections {
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.picker-sections legend {
  font-size: var(--fs-caption);
  padding-inline: var(--space-1);
}

/* Dictation button: quiet until listening */
#dictate-btn.dictating {
  border-color: var(--color-danger);
  color: var(--color-danger);
}

/* Goals: completed steps overstruck, never erased (D17) */
.task-done {
  text-decoration: line-through;
  color: var(--color-muted);
}

.stacked-form select {
  font: inherit;
  padding: var(--space-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-ink);
}

/* --- Week view (calendar slice 2) ----------------------------------------- */

.week-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--space-2);
}

@media (max-width: 60rem) {
  .week-grid { grid-template-columns: repeat(2, 1fr); }
}

.week-day {
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-2);
  min-height: 8rem;
}

.week-day h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--fs-caption);
  color: var(--color-muted);
}

.week-today {
  border-color: var(--color-accent);
}

.week-card {
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  padding: var(--space-1) var(--space-2);
  margin-bottom: var(--space-2);
  font-size: var(--fs-caption);
  background: var(--color-surface);
  cursor: grab;
}

.week-event {
  border-left: 3px solid var(--color-rule);
}

.week-task {
  border-left: 3px solid var(--color-accent);
}

.week-card.dragging { opacity: 0.5; }
.week-day.drop-target { outline: var(--focus-ring); }