/* ==========================================================================
   Calorie Calculator — monochrome interface, colour reserved for data.
   ========================================================================== */

:root {
  --paper:      #fbfaf8;
  --surface:    #ffffff;
  --ink:        #1a1a19;
  --ink-2:      #6b6a66;
  --ink-3:      #97958f;
  --line:       #e6e3dd;
  --line-soft:  #f0eeea;
  --focus:      #2f6f8f;

  --carbs:      #3f6f9c;
  --fat:        #c07a2c;
  --protein:    #4f8a68;

  --radius:     10px;
  --gap:        clamp(1.25rem, 4vw, 1.75rem);
  --pad:        clamp(1.15rem, 5vw, 1.6rem);
  --measure:    34rem;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans Hebrew",
          "Arial Hebrew", Rubik, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:     #121211;
    --surface:   #1b1b19;
    --ink:       #edece9;
    --ink-2:     #a3a099;
    --ink-3:     #78756e;
    --line:      #2e2e2b;
    --line-soft: #232320;
    --focus:     #6fb3d2;

    --carbs:     #7aa8d0;
    --fat:       #dda75c;
    --protein:   #79b895;
  }
}

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

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding: 0 var(--pad) calc(3rem + env(safe-area-inset-bottom));
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

main, .masthead, .colophon {
  max-width: var(--measure);
  margin-inline: auto;
}

h1, h2, p, dl, dd, ul, figure { margin: 0; }
ul { list-style: none; padding: 0; }

:where(a, button, input, summary):focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip {
  position: absolute;
  inset-inline-start: -9999px;
}
.skip:focus {
  inset-inline-start: var(--pad);
  top: .5rem;
  z-index: 50;
  background: var(--surface);
  padding: .5rem .85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
}

/* — Masthead ————————————————————————————————————————————— */

.masthead {
  padding: clamp(2rem, 8vw, 3.25rem) 0 var(--gap);
}
.masthead h1 {
  font-size: clamp(1.45rem, 5.5vw, 1.8rem);
  font-weight: 620;
  letter-spacing: -.015em;
  line-height: 1.2;
}
.masthead p {
  margin-top: .3rem;
  color: var(--ink-2);
  font-size: .95rem;
}

.eyebrow {
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .09em;
  color: var(--ink-3);
  text-transform: uppercase;
}

/* — Search ——————————————————————————————————————————————— */

.search {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: .6rem 0 .5rem;
  background: var(--paper);
}
/* bleed the sticky background to the window edges */
.search::before {
  content: "";
  position: absolute;
  inset: 0 calc(var(--pad) * -1);
  background: inherit;
  z-index: -1;
}

.field {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding-inline: .85rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .12s ease;
}
.field:focus-within { border-color: var(--ink-3); }
.field:focus-within .field__icon { color: var(--ink-2); }

.field input {
  flex: 1;
  min-width: 0;
  padding: .8rem 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  font-size: 16px;           /* keeps iOS from zooming on focus */
}
.field input:focus { outline: none; }
.field input::placeholder { color: var(--ink-3); }

.field__icon {
  flex: none;
  width: 18px; height: 18px;
  color: var(--ink-3);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}

.field__clear {
  flex: none;
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  margin-inline-end: -.35rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--line-soft);
  color: var(--ink-2);
  cursor: pointer;
}
.field__clear svg {
  width: 14px; height: 14px;
  fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round;
}

.results {
  margin-top: .4rem;
  max-height: min(50vh, 22rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px -18px rgb(0 0 0 / .45);
  -webkit-overflow-scrolling: touch;
}
.results li {
  padding: .7rem .9rem;
  cursor: pointer;
  border-top: 1px solid var(--line-soft);
}
.results li:first-child { border-top: 0; }
.results li[aria-selected="true"] { background: var(--line-soft); }
.results li mark {
  background: none;
  color: inherit;
  font-weight: 650;
}

.status {
  min-height: 1.2rem;
  margin-top: .4rem;
  font-size: .85rem;
  color: var(--ink-3);
}
.status:empty { display: none; }

/* — Common foods ————————————————————————————————————————— */

.common { padding-top: var(--gap); }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: .7rem;
}
.chips button {
  padding: .42rem .8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-2);
  font: inherit;
  font-size: .9rem;
  cursor: pointer;
  transition: color .12s ease, border-color .12s ease;
}
.chips button:hover { color: var(--ink); border-color: var(--ink-3); }

.chips button.chips__more {
  border-style: dashed;
  color: var(--ink-3);
}

/* — Selected food ———————————————————————————————————————— */

.food {
  margin-top: var(--gap);
  padding: var(--gap);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
}
.food__head h2 {
  font-size: 1.15rem;
  font-weight: 620;
  line-height: 1.3;
  letter-spacing: -.01em;
}
.food__head .eyebrow { margin-top: .25rem; }

/* macro row */
.macros {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .5rem;
  margin-top: 1.15rem;
}
.macros > div {
  border-top: 2px solid var(--tint, var(--ink));
  padding-top: .5rem;
}
.macros dt {
  font-size: .78rem;
  color: var(--ink-2);
  white-space: nowrap;
}
.macros dd {
  font-size: 1.05rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}
.macros dd small {
  font-size: .72rem;
  font-weight: 400;
  color: var(--ink-3);
  margin-inline-start: .12rem;
}
[data-macro="kcal"]    { --tint: var(--ink); }
[data-macro="carbs"]   { --tint: var(--carbs); }
[data-macro="fat"]     { --tint: var(--fat); }
[data-macro="protein"] { --tint: var(--protein); }

/* secondary nutrients */
.extra { margin-top: 1.15rem; }
.extra summary {
  font-size: .88rem;
  color: var(--ink-2);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: .35rem;
}
.extra summary::-webkit-details-marker { display: none; }
.extra summary::before {
  content: "";
  width: 6px; height: 6px;
  border-inline-start: 1.5px solid currentColor;
  border-block-end: 1.5px solid currentColor;
  transform: rotate(135deg);          /* points along the reading direction */
  transition: transform .15s ease;
}
.extra[open] summary::before { transform: rotate(45deg); }

.rows { margin-top: .7rem; }
.rows > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .45rem 0;
  border-top: 1px solid var(--line-soft);
  font-size: .9rem;
}
.rows dt { color: var(--ink-2); }
.rows dd { font-variant-numeric: tabular-nums; }

/* portion calculator */
.portion {
  margin-top: 1.35rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  padding: 2px;
  background: var(--line-soft);
  border-radius: 8px;
}
.segmented button {
  padding: .5rem;
  border: 0;
  border-radius: 6px;
  background: none;
  color: var(--ink-2);
  font: inherit;
  font-size: .9rem;
  cursor: pointer;
}
.segmented button[aria-checked="true"] {
  background: var(--surface);
  color: var(--ink);
  font-weight: 550;
  box-shadow: 0 1px 2px rgb(0 0 0 / .08);
}

.field--amount { margin-top: .7rem; }
.field--amount input {
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  font-weight: 550;
  -moz-appearance: textfield;
}
.field--amount input::-webkit-outer-spin-button,
.field--amount input::-webkit-inner-spin-button {
  -webkit-appearance: none; margin: 0;
}
.field__unit {
  flex: none;
  color: var(--ink-3);
  font-size: .9rem;
}

.note {
  min-height: 1.25rem;
  margin-top: .5rem;
  font-size: .87rem;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.note:empty { display: none; }
.note b { font-weight: 600; color: var(--ink); }

.portion .eyebrow { margin-top: 1rem; }
.portion .eyebrow:empty { display: none; }
.macros--portion { margin-top: .45rem; }

/* — Buttons ——————————————————————————————————————————————— */

.btn {
  font: inherit;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid transparent;
}
.btn--primary {
  width: 100%;
  margin-top: 1.2rem;
  padding: .78rem;
  background: var(--ink);
  color: var(--paper);
  font-weight: 550;
  transition: opacity .12s ease;
}
.btn--primary:hover:not(:disabled) { opacity: .85; }
.btn--primary:disabled { opacity: .35; cursor: not-allowed; }

.btn--quiet {
  padding: .3rem .55rem;
  margin-inline-end: -.55rem;
  background: none;
  color: var(--ink-3);
  font-size: .85rem;
}
.btn--quiet:hover { color: var(--ink); }

/* — Journal ——————————————————————————————————————————————— */

.journal {
  margin-top: calc(var(--gap) * 1.6);
  padding-top: var(--gap);
  border-top: 1px solid var(--line);
}
.journal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.empty {
  margin-top: .9rem;
  color: var(--ink-3);
  font-size: .92rem;
}

.total {
  display: flex;
  align-items: baseline;
  gap: .35rem;
  margin-top: .8rem;
}
.total__num {
  font-size: clamp(2.6rem, 13vw, 3.4rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.035em;
  font-variant-numeric: tabular-nums;
}
.total__unit { color: var(--ink-2); font-size: .95rem; }

.split {
  display: flex;
  gap: 2px;
  height: 5px;
  margin-top: 1rem;
  border-radius: 3px;
  overflow: hidden;
  background: var(--line-soft);
}
.split__seg {
  background: var(--tint);
  transition: flex-basis .25s ease;
  flex: 0 0 0%;
}

.macros--total { margin-top: .9rem; }

.entries { margin-top: 1.4rem; }
.entries li {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .7rem 0;
  border-top: 1px solid var(--line-soft);
}
.entries li:first-child { border-top: 0; }

.entry__text { flex: 1; min-width: 0; }
.entry__name {
  display: block;
  font-size: .95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.entry__meta {
  display: block;
  margin-top: .1rem;
  font-size: .8rem;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.entry__kcal {
  flex: none;
  min-width: 3.5ch;
  text-align: start;               /* keeps the digits in a column */
  font-variant-numeric: tabular-nums;
  font-weight: 550;
  font-size: .95rem;
}
.entry__remove {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  margin-inline-end: -.5rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: none;
  color: var(--ink-3);
  cursor: pointer;
}
.entry__remove:hover { color: var(--ink); background: var(--line-soft); }
.entry__remove svg {
  width: 14px; height: 14px;
  fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round;
}

/* — Colophon —————————————————————————————————————————————— */

.colophon {
  margin-top: calc(var(--gap) * 2);
  padding-top: var(--gap);
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: .82rem;
}

/* — Wider screens ————————————————————————————————————————— */

@media (min-width: 40rem) {
  .macros dd { font-size: 1.15rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}