/*
 * Built for a phone in one hand in a supermarket, and an iPad on the counter.
 *
 * Two rules drive most of what follows:
 *   - Nothing is hover-only. A touch device has no hover, so every state a
 *     control can be in is either always visible or shown on :active.
 *   - Every control is at least 44px on its shortest side, which is Apple's
 *     minimum comfortable target, and 56px in shop mode where you are
 *     tapping one-handed with a trolley in the other.
 */

:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --ink: #191c1a;
  --ink-soft: #5c645f;
  --ink-faint: #8a918c;
  --line: #e2e0da;
  --accent: #1f6f4a;
  --accent-ink: #ffffff;
  --warn: #9a5b12;
  --radius: 14px;
  --tap: 44px;
  --pad: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1512;
    --surface: #191f1c;
    --ink: #eef1ee;
    --ink-soft: #a7b0aa;
    --ink-faint: #7a837d;
    --line: #2b332e;
    --accent: #4bbd85;
    --accent-ink: #08130d;
    --warn: #e0a758;
  }
}

* { box-sizing: border-box; }

html {
  /* Stops iOS bumping up the font when you rotate an iPhone to landscape. */
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
  /* Safari refuses to style a button's text colour without this. */
  -webkit-appearance: none;
  appearance: none;
}

button {
  /* Kills the 300ms tap delay and the grey flash iOS paints over taps; the
     :active rules below give the feedback instead. */
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
  border: 0;
  background: none;
}

h1, h2, h3 { margin: 0; }

/* ------------------------------------------------------------------ chrome */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: calc(10px + env(safe-area-inset-top)) var(--pad) 0;
  padding-left: calc(var(--pad) + env(safe-area-inset-left));
  padding-right: calc(var(--pad) + env(safe-area-inset-right));
}

.topbar h1 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.tabs { display: flex; gap: 4px; margin-top: 8px; }

.tab {
  flex: 1;
  min-height: var(--tap);
  /* Three tabs across the narrowest phone, so the padding has to earn itself. */
  padding: 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink-soft);
  border-bottom: 3px solid transparent;
}

.tab[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.tab:active { background: var(--bg); }

.badge {
  display: inline-block;
  min-width: 22px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 13px;
  font-weight: 700;
  vertical-align: 1px;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding-left: calc(var(--pad) + env(safe-area-inset-left));
  padding-right: calc(var(--pad) + env(safe-area-inset-right));
}

/* Not `> h2`: the add-recipe screen's headings sit inside its <form>. */
.view h2 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 28px 0 10px;
}

.error {
  margin: var(--pad);
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--warn);
  color: #fff;
}

.empty {
  margin: 0;
  padding: 20px 16px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--ink-soft);
  text-align: center;
}

.summary { margin: 12px 2px; color: var(--ink-soft); font-size: 15px; }

/* -------------------------------------------------------------- week bar */

.weekbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.week-step {
  width: var(--tap);
  height: var(--tap);
  flex: none;
  border-radius: 10px;
  font-size: 26px;
  line-height: 1;
  color: var(--ink-soft);
  background: var(--bg);
}

.week-step:active { background: var(--line); }

.week-of { flex: 1; min-width: 0; text-align: center; }

.week-of label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* 16px or more, or Safari zooms the page in when the field takes focus. */
#week-date {
  width: 100%;
  min-height: 32px;
  padding: 2px;
  border: 0;
  background: none;
  font-size: 17px;
  font-weight: 600;
  text-align: center;
}

.week-range { margin: 0; font-size: 14px; color: var(--ink-soft); }

/* ---------------------------------------------------------------- meals */

.meals, .recipes, .items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.meal, .recipe {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.recipe-main { min-width: 0; }

/*
 * A meal has four controls after its name, which will not fit beside it on a
 * phone — the name gets crushed to two characters. So the card wraps to two
 * rows by default and only goes back to one line when there is room, which
 * on an iPad there always is.
 */
.meal { flex-wrap: wrap; row-gap: 8px; }
.meal-main { flex: 1 1 100%; min-width: 0; }
.meal-controls { flex: 1 1 100%; justify-content: space-between; }

@media (min-width: 560px) {
  .meal-main { flex: 1 1 auto; }
  .meal-controls { flex: 0 0 auto; }
}

/* The recipe card gained a delete button next to Add, which is one control
   too many beside a long name on a phone. Same treatment as a meal card. */
.recipe { flex-wrap: wrap; row-gap: 8px; }
.recipe-main { flex: 1 1 100%; }
.recipe .add { flex: 1 1 auto; }

@media (min-width: 420px) {
  .recipe-main { flex: 1 1 auto; }
  .recipe .add { flex: 0 0 auto; }
}

.meal-name, .recipe-name {
  display: block;
  font-weight: 600;
}

.meal-note, .recipe-note, .recipe-count {
  display: block;
  font-size: 14px;
  color: var(--ink-soft);
}

.recipe-count { color: var(--accent); font-weight: 600; }

.meal-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.day-select {
  min-height: var(--tap);
  padding: 0 26px 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  font-size: 16px;
  /* No native arrow once appearance is stripped, so draw one. */
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%),
                    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position: right 13px center, right 8px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.stepper {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg);
}

.step {
  width: var(--tap);
  height: var(--tap);
  font-size: 22px;
  line-height: 1;
  color: var(--ink);
}

.step:active { background: var(--line); }

.step-value {
  min-width: 30px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.remove {
  width: var(--tap);
  height: var(--tap);
  flex: none;
  border-radius: 10px;
  font-size: 18px;
  color: var(--ink-faint);
}

.remove:active { background: var(--line); color: var(--ink); }

.add {
  flex: none;
  min-height: var(--tap);
  padding: 0 20px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

.add:active { filter: brightness(0.88); }

/* -------------------------------------------------------------- buttons */

.primary, .ghost {
  display: block;
  width: 100%;
  min-height: 52px;
  border-radius: var(--radius);
  font-size: 17px;
  font-weight: 600;
}

.primary { background: var(--accent); color: var(--accent-ink); }
.primary:active { filter: brightness(0.88); }

.ghost {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

.ghost:active { background: var(--line); }

.page-action { margin: 24px 0 8px; }

/* -------------------------------------------------------- shopping list */

.list-top {
  position: sticky;
  top: var(--topbar-h, 0px);
  z-index: 4;
  margin: 0 -4px;
  padding: 12px 4px;
  background: var(--bg);
}

.list-actions { display: flex; gap: 8px; }

.toggle {
  flex: 1;
  min-height: var(--tap);
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-weight: 600;
  color: var(--ink-soft);
}

.toggle[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.list-actions .ghost { flex: none; width: auto; min-height: var(--tap); padding: 0 16px; }

.progress-text { margin: 10px 2px 6px; font-size: 15px; color: var(--ink-soft); }

.progress {
  height: 6px;
  border-radius: 3px;
  background: var(--line);
  overflow: hidden;
}

.progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 0.2s ease-out;
}

.aisle { margin-top: 22px; }

.aisle-head {
  position: sticky;
  /* Sits directly under the top bar and the list controls, both of which are
     also sticky. Their heights change with the safe-area inset and the text
     size, so app.js measures them instead of hard-coding a number. */
  top: calc(var(--topbar-h, 0px) + var(--listtop-h, 0px));
  z-index: 3;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 6px 2px;
  background: var(--bg);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.aisle-head.is-done { color: var(--accent); }

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

.items { margin-top: 6px; }

.item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

/* The whole row is the tap target, not a small checkbox in the corner. */
.item-hit {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 56px;
  padding: 10px 12px;
  text-align: left;
}

.item-hit:active { background: var(--bg); }

.item-box {
  flex: none;
  width: 26px;
  height: 26px;
  border: 2px solid var(--line);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent-ink);
}

.item.is-ticked .item-box {
  background: var(--accent);
  border-color: var(--accent);
}

.item-text { flex: 1; min-width: 0; }

.item-name { display: block; font-weight: 600; }

.item-from, .item-gap {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
}

.item-gap { color: var(--warn); }

.item-qty {
  flex: none;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.item.is-ticked .item-name,
.item.is-ticked .item-qty {
  color: var(--ink-faint);
  text-decoration: line-through;
}

.item.is-ticked .item-from { color: var(--ink-faint); }

/* --------------------------------------------------------- shop mode */

/*
 * One-handed, at arm's length, in a shop: bigger rows, bigger type, and the
 * provenance line dropped so each item is one glance rather than two.
 */
.shop-mode .item-hit { min-height: 64px; gap: 14px; padding: 12px 14px; }
.shop-mode .item-name { font-size: 19px; }
.shop-mode .item-qty { font-size: 19px; }
.shop-mode .item-box { width: 30px; height: 30px; }
.shop-mode .aisle-head { font-size: 14px; }
.shop-mode .item.is-ticked { opacity: 0.5; }

/* ------------------------------------------------------- add recipe form */

/*
 * Same sizing rules as the other screens: nothing under 44px on its shortest
 * side, and every text field at 16px or more so Safari does not zoom the page
 * in when one takes focus. On a phone a form row stacks; from 560px up — an
 * iPad in either orientation — it goes back to one line.
 */

.field { margin-top: 16px; }

.field-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.field-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.field-inline .field-label { margin-bottom: 0; }

.field-hint { margin: 6px 2px 0; font-size: 14px; color: var(--ink-soft); }

/* For a control a heading already names on screen but a screen reader would
   otherwise meet unlabelled. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.text-input {
  display: block;
  width: 100%;
  min-height: var(--tap);
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  font-size: 17px;
}

textarea.text-input { line-height: 1.4; resize: vertical; }

select.text-input {
  padding-right: 34px;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%),
                    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position: right 17px center, right 12px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.text-input:focus-visible,
.line-ingredient:focus-visible,
.line-qty:focus-visible,
.line-unit:focus-visible,
.step-text:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.lines, .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* An ingredient line is a picker, a quantity, a unit and a remove button —
   far too much for one row on a phone, so the picker takes a row of its own
   and the rest sit under it. */
.line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.line-ingredient {
  flex: 1 1 100%;
  min-width: 0;
  min-height: var(--tap);
  padding: 0 30px 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  font-size: 16px;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%),
                    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position: right 15px center, right 10px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.line-controls {
  flex: 1 1 100%;
  display: flex;
  align-items: center;
  gap: 8px;
}

.line-qty {
  flex: 1 1 0;
  min-width: 0;
  min-height: var(--tap);
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
}

/* The spin buttons are a 12px target and useless on a touch screen. */
.line-qty::-webkit-outer-spin-button,
.line-qty::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.line-qty { -moz-appearance: textfield; }

.line-unit {
  flex: 0 0 88px;
  min-height: var(--tap);
  padding: 0 24px 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  font-size: 16px;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%),
                    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%);
  background-position: right 11px center, right 6px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

/* Same warning colour as the shopping list's own gap line — it is the same
   missing figure, said earlier. */
.line-gap {
  flex: 1 1 100%;
  margin: 0;
  font-size: 13px;
  color: var(--warn);
}

.step-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.step-number {
  flex: none;
  width: 26px;
  min-height: var(--tap);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
}

.step-text {
  flex: 1;
  min-width: 0;
  min-height: var(--tap);
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  font-size: 16px;
  line-height: 1.4;
  resize: none;
  overflow: hidden;
}

.step-row .remove { align-self: center; }

.add-row { margin-top: 10px; }

/* Errors and the one success line share a box: both are the form answering
   you, and both belong directly above the button you just pressed. */
.form-notice {
  list-style: none;
  margin: 20px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid;
  font-size: 15px;
}

.form-notice li + li { margin-top: 6px; }

.form-notice.is-bad {
  border-color: var(--warn);
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 10%, var(--surface));
}

.form-notice.is-good {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
}

.primary[disabled] { opacity: 0.6; }
.step[disabled] { opacity: 0.35; }

@media (min-width: 560px) {
  .line-ingredient { flex: 1 1 auto; }
  .line-controls { flex: 0 0 auto; }
  .line-qty { flex: 0 0 96px; }
}

/* ------------------------------------------------------------ pointers */

/* Hover styles only where a pointer actually exists — an iPad with a
   trackpad gets them, a finger never does. */
@media (hover: hover) {
  .tab:hover, .step:hover, .week-step:hover, .ghost:hover { background: var(--line); }
  .item-hit:hover { background: var(--bg); }
}

@media (prefers-reduced-motion: reduce) {
  .progress span { transition: none; }
}