/* Food Log. Sized for iPhone. One appearance: black background, white text. */

:root {
  color-scheme: dark;
  --page: #000000;
  --surface: #1a1a19;         /* cards */
  --sheet: #0d0d0d;           /* pop-ups */
  --fill: #2c2c2a;            /* inputs, segmented controls, quiet buttons */
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --hairline: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.12);
  --danger: #e66767;
  --on-ink: #000000;
  /* meal colours: breakfast, lunch, dinner, snack — the same in the day view and in History */
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --tabbar-h: 58px;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; background: var(--page); }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: none;
}

body.sheet-open { overflow: hidden; }

h1, h2, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }

#view {
  max-width: 520px;
  min-height: 100dvh;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 12px) 16px calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 28px);
  outline: none;
}

/* ------------------------------------------------------------ headings */

.screen-head { padding: 8px 4px 14px; }
.screen-head h1 { font-size: 30px; line-height: 1.15; font-weight: 700; letter-spacing: -0.02em; }
.sub { color: var(--ink-2); font-size: 14px; margin-top: 2px; }
.muted { color: var(--ink-2); }
.hint { color: var(--ink-2); font-size: 14px; padding: 0 16px 12px; }

.head-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.day-nav { display: flex; align-items: center; margin: 6px -10px -8px; }
.day-nav .sub { flex: 1; text-align: center; margin: 0; font-size: 16px; }

/* ------------------------------------------------------------ cards and rows */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
}

.card-head { display: flex; align-items: center; gap: 8px; padding: 12px 8px 8px 16px; min-height: 48px; }
.card-head h2 { font-size: 17px; font-weight: 600; flex: 1; }
.card-foot { display: block; width: 100%; text-align: left; padding: 12px 16px; border-top: 1px solid var(--hairline); }

.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; display: inline-block; background: var(--c); }
.dot.off { background: transparent; box-shadow: inset 0 0 0 1.5px var(--axis); }
.dots { display: flex; gap: 5px; }

.rows > li { border-top: 1px solid var(--hairline); }
.card > .rows:first-child > li:first-child { border-top: 0; }

.row {
  display: flex; align-items: center; gap: 12px;
  width: 100%; min-height: 56px; padding: 9px 16px;
  background: none; border: 0; text-align: left;
}
.row:active { background: var(--fill); }
.row-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.row-title { font-weight: 500; overflow-wrap: anywhere; }
.row-sub { color: var(--ink-2); font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row-sub:empty { display: none; }
.row-value { color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap; }

.row-with-action { display: flex; align-items: center; }
.row-with-action .icon-btn { margin-left: 6px; }
.row-with-action .row { padding-left: 6px; }
/* a saved place: its name, then the button that removes it */
.place-row { min-height: 56px; padding: 6px 0 6px 16px; }
.place-row .row-title { flex: 1; min-width: 0; }
.place-row .icon-btn { margin-right: 6px; }

.empty { color: var(--muted); font-size: 15px; padding: 0 16px 14px; }
.empty-screen { color: var(--ink-2); text-align: center; padding: 48px 28px; }

.plain-list > li { display: flex; justify-content: space-between; gap: 16px; padding: 11px 16px; border-top: 1px solid var(--hairline); }
.plain-list > li > span:last-child { text-align: right; white-space: nowrap; }

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

.icon-btn {
  width: 44px; height: 44px; flex: none;
  display: grid; place-items: center;
  background: none; border: 0; border-radius: 50%; color: var(--ink-2);
}
.icon-btn:active { background: var(--fill); }
.icon-btn:disabled { opacity: 0.25; }
.star.on { color: var(--series-4); }
.star.on svg { fill: currentColor; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 0 16px;
  background: var(--fill); border: 0; border-radius: 12px; font-weight: 600; white-space: nowrap;
}
.btn svg { width: 20px; height: 20px; }
.btn.primary { background: var(--ink); color: var(--on-ink); }
.btn.danger { background: none; color: var(--danger); box-shadow: inset 0 0 0 1px var(--border); }
.btn:active { opacity: 0.7; }

.pill { min-height: 36px; padding: 0 16px; background: var(--ink); color: var(--on-ink); border: 0; border-radius: 18px; font-weight: 600; font-size: 15px; }

.link { background: none; border: 0; padding: 8px 4px; color: var(--ink-2); font-size: 16px; }
.link.strong { color: var(--ink); font-weight: 700; }
.card-foot.link { color: var(--ink-2); font-size: 15px; padding: 12px 16px; }

.button-row { display: flex; gap: 10px; padding: 0 16px 16px; flex-wrap: wrap; }
.button-row .btn { flex: 1; }

/* ------------------------------------------------------------ inputs */

input[type="text"], input[type="search"], input[type="date"], input[type="time"], select, textarea {
  width: 100%; min-height: 44px; padding: 9px 12px;
  background: var(--fill); border: 1px solid transparent; border-radius: 12px;
  -webkit-appearance: none; appearance: none;
}
textarea { resize: none; display: block; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--series-1); outline-offset: 1px;
}
::placeholder { color: var(--muted); }

.search-row, .toolbar { display: flex; gap: 10px; margin-bottom: 14px; }
.search-row input { flex: 1; min-width: 0; min-height: 48px; background: var(--surface); border-color: var(--border); }
.toolbar .seg { flex: 1; }

.seg { display: flex; padding: 3px; background: var(--fill); border-radius: 12px; min-height: 44px; }
.seg label { flex: 1; display: flex; position: relative; }
.seg input { position: absolute; inset: 0; opacity: 0; margin: 0; }
.seg span {
  flex: 1; display: grid; place-items: center; padding: 0 8px;
  border-radius: 9px; font-size: 15px; font-weight: 500; color: var(--ink-2); white-space: nowrap;
}
.seg input:checked + span { background: var(--ink); color: var(--on-ink); font-weight: 600; }
.seg input:focus-visible + span { outline: 2px solid var(--series-1); }
.seg-4 span { font-size: 14px; padding: 0 2px; }

.switch-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 52px; padding: 6px 16px; border-top: 1px solid var(--hairline);
}
.switch-row input[type="time"] { width: auto; min-width: 104px; }
.switch-row input[type="checkbox"] {
  -webkit-appearance: none; appearance: none; flex: none;
  width: 50px; height: 30px; margin: 0; border-radius: 15px; background: var(--axis); position: relative; transition: background 0.15s;
}
.switch-row input[type="checkbox"]::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 24px; height: 24px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3); transition: transform 0.15s;
}
.switch-row input[type="checkbox"]:checked { background: var(--series-3); }
.switch-row input[type="checkbox"]:checked::after { transform: translateX(20px); }
.card .switch-row + .hint { padding-top: 4px; }
.box-row { gap: 6px; padding-right: 12px; }
.box-row > span:first-child { flex: 1; }
.order-buttons { display: flex; flex: none; margin-right: 6px; }

/* ------------------------------------------------------------ how the day went */

.day-card { padding: 4px 0 8px; }
.day-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0 16px; padding: 0 16px; min-height: 64px; }
.day-card > input[type="text"] { display: block; width: calc(100% - 32px); margin: 2px 16px 10px; }
.day-card > input[hidden], .day-detail[hidden] { display: none; }
.day-detail { flex: 1; min-width: 0; display: flex; }
/* a time or a date does not shrink as a slider does: on a narrow phone it goes under the tick */
.day-row > .day-fixed { min-width: max-content; }
/* a time or a date beside a tick, under its label as a slider is */
.day-field { flex: 1; min-width: 0; display: grid; gap: 4px; justify-items: start; padding: 8px 0; }
.day-field input[type="date"] { width: auto; min-width: 150px; max-width: 100%; min-height: 40px; padding: 6px 12px; }

.check { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; flex: none; font-weight: 500; }
.check input {
  -webkit-appearance: none; appearance: none; flex: none;
  width: 26px; height: 26px; margin: 0; display: grid; place-items: center;
  border: 2px solid var(--muted); border-radius: 7px; background: transparent;
}
.check input:checked { background: var(--ink); border-color: var(--ink); }
.check input:checked::after {
  content: ""; width: 6px; height: 12px; margin-top: -3px;
  border: solid var(--on-ink); border-width: 0 3px 3px 0; transform: rotate(45deg);
}

.scale { flex: 1; min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 10px; align-items: center; }
.scale-label { grid-column: 1 / -1; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.scale input[type="range"] { width: 100%; height: 36px; margin: 0; accent-color: var(--ink); background: transparent; }
.scale-ends { grid-column: 1; display: flex; justify-content: space-between; margin-top: -6px; font-size: 12px; color: var(--muted); }
.day-card[data-box="condition"] .day-row { min-height: 76px; }
.scale-value {
  min-width: 38px; height: 36px; padding: 0 6px; border: 0; border-radius: 10px;
  background: var(--fill); font-weight: 600; font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------ reminder card */

.nudge-head { display: flex; align-items: center; gap: 8px; padding: 12px 16px 6px; color: var(--ink-2); }
.nudge-head h2 { font-size: 15px; font-weight: 600; color: var(--ink); }
.nudge-row { display: flex; align-items: center; gap: 6px; padding: 4px 6px 4px 16px; }
.nudge-row > span { flex: 1; font-weight: 500; }
.nudge-row:last-child { padding-bottom: 10px; }

/* ------------------------------------------------------------ tab bar */

.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: flex; justify-content: space-around; align-items: flex-start;
  height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding: 6px max(8px, env(safe-area-inset-left)) env(safe-area-inset-bottom);
  background: rgba(0, 0, 0, 0.82);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
}
.tabbar a {
  flex: 1; max-width: 104px; min-height: 46px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  color: var(--muted); text-decoration: none; font-size: 11px; font-weight: 500;
}
.tabbar a[aria-current] { color: var(--ink); }
.tabbar .tab-add { flex: none; width: 52px; height: 46px; border-radius: 16px; background: var(--ink); color: var(--on-ink); }
.tabbar .tab-add[aria-current] { color: var(--on-ink); }
.tabbar .tab-add svg { width: 26px; height: 26px; stroke-width: 2.2; }

/* ------------------------------------------------------------ sheets */

.backdrop { position: fixed; inset: 0; z-index: 20; background: rgba(0, 0, 0, 0.6); }

.sheet {
  position: fixed; z-index: 21; left: 0; right: 0; bottom: 0;
  top: calc(env(safe-area-inset-top) + 28px);
  max-width: 520px; margin: 0 auto;
  background: var(--sheet); border: 1px solid var(--border); border-bottom: 0; border-radius: 18px 18px 0 0;
  overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain;
  padding-bottom: calc(env(safe-area-inset-bottom) + 24px);
  animation: rise 0.2s ease-out;
}
.sheet-compact { top: auto; }
@keyframes rise { from { transform: translateY(24px); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .sheet { animation: none; } }

.sheet-head {
  position: sticky; top: 0; z-index: 1;
  display: flex; align-items: center; gap: 8px;
  padding: 10px 12px; background: var(--sheet); border-bottom: 1px solid var(--hairline);
}
.sheet-head h2 { flex: 1; text-align: center; font-size: 17px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sheet-form > :not(.sheet-head) { margin: 14px 16px 0; }
.sheet-form > .hint { padding: 0; margin-top: 6px; }
.sheet-form > .btn { display: flex; width: calc(100% - 32px); margin-top: 22px; }
.sheet-form .plain-list { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.sheet-form .plain-list > li:first-child { border-top: 0; }
.sheet-form input[type="text"], .sheet-form input[type="date"], .sheet-form input[type="time"],
.sheet-form textarea, .sheet-form select { background: var(--surface); border-color: var(--border); }
.sheet-form .switch-row { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }

.field { display: block; }
.field > span:first-child { display: block; font-size: 13px; font-weight: 600; color: var(--ink-2); margin: 0 0 6px 4px; }
.field[hidden] { display: none; }
.field-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-pair.single { grid-template-columns: 1fr; }
.amount-row { display: flex; gap: 10px; }
.amount-row input { flex: 1; min-width: 0; }
.amount-row .seg { flex: 1.3; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chip { min-height: 36px; padding: 0 14px; background: var(--fill); border: 0; border-radius: 18px; font-size: 15px; font-weight: 500; }
.chip:active { opacity: 0.6; }
.sheet-form > .hint.period { margin-top: 14px; color: var(--ink); font-weight: 500; }

/* a time of day: hour and minute, 00:00 to 23:59 */
.time-field { display: inline-flex; align-items: center; gap: 4px; font-variant-numeric: tabular-nums; flex: none; }
.time-field select { width: 68px; padding: 9px 4px; text-align: center; text-align-last: center; }
.time-field select:disabled { opacity: 0.4; }
/* the time of a meal, in its header on the Today screen */
.card-head .time-field select, .day-card .time-field select { width: 54px; min-height: 40px; padding: 6px 2px; }
.sheet-form .time-field { display: flex; }
.sheet-form .time-field select { flex: 1; width: auto; }

.portion-row { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.portion-row[hidden] { display: none; }
.portion-label { flex: 1; text-align: center; color: var(--ink-2); font-size: 14px; font-variant-numeric: tabular-nums; }
.step { width: 52px; height: 44px; border: 0; border-radius: 12px; background: var(--fill); font-size: 22px; font-weight: 500; }
.step:active { opacity: 0.6; }

.items { display: grid; gap: 8px; margin-bottom: 10px; }
.item-row { display: grid; grid-template-columns: minmax(0, 1fr) 84px 68px 40px; gap: 6px; align-items: center; }
.item-row .icon-btn { width: 40px; height: 40px; }
.item-row select { padding-right: 6px; }

.form-error { color: var(--danger); font-size: 15px; font-weight: 500; }

.confirm { padding: 24px 20px 4px; display: grid; gap: 12px; }
.confirm .btn { min-height: 50px; font-size: 17px; }
.confirm h2 { font-size: 19px; }
.confirm p { color: var(--ink-2); margin-bottom: 6px; }

/* ------------------------------------------------------------ toast */

#toast {
  position: fixed; z-index: 40; left: 50%; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 16px);
  transform: translate(-50%, 12px); max-width: calc(100% - 32px);
  padding: 10px 16px; border-radius: 12px; background: var(--ink); color: var(--on-ink);
  font-size: 15px; font-weight: 500; text-align: center;
  opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ------------------------------------------------------------ history */

.tiles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 14px; }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 12px 10px; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.tile-label { font-size: 13px; color: var(--ink-2); }
.tile-value { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; }
.tile-value small { font-size: 13px; font-weight: 500; color: var(--muted); letter-spacing: 0; }

/* one box across the whole line: its label on the left, its number on the right */
.tile.wide { grid-column: 1 / -1; flex-direction: row; align-items: baseline; justify-content: space-between; gap: 12px; }
.tile.wide .tile-label { font-size: 15px; }