/* ---------------------------------------------------------------------------
   Design tokens. Light is the default palette; dark is layered on top so a
   kitchen tablet left on auto-brightness stays readable either way.
--------------------------------------------------------------------------- */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f6;
  --surface-3: #e8ebf0;
  --border: #dde1e8;
  --border-strong: #c6ccd8;
  --text: #14181f;
  --text-dim: #5b6472;
  --text-faint: #8b95a5;

  --accent: #2f6df6;
  --accent-soft: #e6eeff;
  --good: #12855b;
  --good-soft: #e2f5ec;
  --warn: #b96a06;
  --warn-soft: #fdf0dd;
  --bad: #c62f42;
  --bad-soft: #fdeaec;
  --info: #6b46d6;

  --c1: #2f6df6; --c2: #12a594; --c3: #d97706; --c4: #8b5cf6;
  --c5: #e11d48; --c6: #0891b2; --c7: #65a30d; --c8: #db2777;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px -12px rgba(16, 24, 40, .18);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1117;
    --surface: #161b23;
    --surface-2: #1c222c;
    --surface-3: #252c38;
    --border: #29313d;
    --border-strong: #3a4453;
    --text: #e9edf3;
    --text-dim: #9aa5b5;
    --text-faint: #6d7889;

    --accent: #5b8bff;
    --accent-soft: #1a2542;
    --good: #34d399;
    --good-soft: #10291f;
    --warn: #f0a94c;
    --warn-soft: #2e2413;
    --bad: #f87171;
    --bad-soft: #2e1719;
    --info: #a78bfa;

    --c1: #5b8bff; --c2: #2dd4bf; --c3: #fbbf24; --c4: #a78bfa;
    --c5: #fb7185; --c6: #22d3ee; --c7: #a3e635; --c8: #f472b6;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -14px rgba(0, 0, 0, .6);
  }
}

:root[data-theme="dark"] {
  --bg: #0d1117; --surface: #161b23; --surface-2: #1c222c; --surface-3: #252c38;
  --border: #29313d; --border-strong: #3a4453;
  --text: #e9edf3; --text-dim: #9aa5b5; --text-faint: #6d7889;
  --accent: #5b8bff; --accent-soft: #1a2542;
  --good: #34d399; --good-soft: #10291f;
  --warn: #f0a94c; --warn-soft: #2e2413;
  --bad: #f87171; --bad-soft: #2e1719; --info: #a78bfa;
  --c1: #5b8bff; --c2: #2dd4bf; --c3: #fbbf24; --c4: #a78bfa;
  --c5: #fb7185; --c6: #22d3ee; --c7: #a3e635; --c8: #f472b6;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -14px rgba(0, 0, 0, .6);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -0.015em; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 .6rem; }
a { color: var(--accent); }

/* --------------------------------------------------------------- layout -- */
.shell { min-height: 100dvh; display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: .75rem;
  padding: .6rem clamp(.75rem, 3vw, 1.5rem);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .55rem; font-weight: 700; letter-spacing: -.02em; }
.brand-mark { font-size: 1.25rem; }
.brand-sub { color: var(--text-faint); font-weight: 500; font-size: .78rem; display: block; letter-spacing: 0; }
.topbar-spacer { flex: 1; }

.nav { display: flex; gap: .15rem; overflow-x: auto; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav a {
  padding: .45rem .75rem; border-radius: 999px; font-size: .88rem; font-weight: 550;
  color: var(--text-dim); text-decoration: none; white-space: nowrap;
}
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.active { background: var(--accent); color: #fff; }

.main { flex: 1; width: 100%; max-width: 1320px; margin: 0 auto; padding: clamp(.85rem, 2.5vw, 1.6rem); }

.page-head {
  display: flex; flex-wrap: wrap; gap: .75rem; align-items: flex-end;
  justify-content: space-between; margin-bottom: 1.1rem;
}
.page-head .sub { color: var(--text-dim); font-size: .9rem; }

/* ---------------------------------------------------------------- cards -- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 1rem 1.1rem; margin-bottom: 1rem;
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: .75rem; margin-bottom: .85rem; }
.card-head h2, .card-head h3 { display: flex; align-items: center; gap: .5rem; }
.card-note { color: var(--text-faint); font-size: .8rem; font-weight: 450; }

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }

/* ---------------------------------------------------------------- stats -- */
.stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .85rem .95rem;
}
.stat-label { font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-faint); font-weight: 650; }
.stat-value { font-size: 1.7rem; font-weight: 680; letter-spacing: -.03em; margin-top: .15rem; font-variant-numeric: tabular-nums; }
.stat-value small { font-size: .95rem; font-weight: 550; color: var(--text-dim); margin-left: .15rem; }
.stat-sub { font-size: .8rem; color: var(--text-dim); margin-top: .2rem; display: flex; align-items: center; gap: .35rem; flex-wrap: wrap; }
.stat-spark { margin-top: .45rem; }

.delta { font-weight: 640; font-variant-numeric: tabular-nums; font-size: .8rem; }
.delta.up { color: var(--bad); }
.delta.down { color: var(--good); }
.delta.flat { color: var(--text-faint); }
.delta.good-up { color: var(--good); }
.delta.bad-down { color: var(--bad); }

/* ---------------------------------------------------------------- pills -- */
.pill {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .15rem .5rem; border-radius: 999px;
  font-size: .74rem; font-weight: 620; letter-spacing: .01em;
  background: var(--surface-2); color: var(--text-dim); border: 1px solid var(--border);
}
.pill.good { background: var(--good-soft); color: var(--good); border-color: transparent; }
.pill.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.pill.bad  { background: var(--bad-soft);  color: var(--bad);  border-color: transparent; }
.pill.info { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

/* --------------------------------------------------------------- alerts -- */
.alert {
  display: flex; gap: .7rem; align-items: flex-start;
  padding: .7rem .85rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface-2);
  margin-bottom: .5rem;
}
.alert-icon { font-size: 1rem; line-height: 1.35; }
.alert-title { font-weight: 640; font-size: .92rem; }
.alert-detail { font-size: .84rem; color: var(--text-dim); }
.alert.high { background: var(--bad-soft); border-color: color-mix(in srgb, var(--bad) 30%, transparent); }
.alert.warn { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.alert.info { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 25%, transparent); }

/* --------------------------------------------------------------- tables -- */
.table-wrap { overflow-x: auto; margin: 0 -1.1rem -1rem; padding: 0 1.1rem 1rem; }
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { padding: .5rem .6rem; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-faint); font-weight: 650; position: sticky; top: 0;
  background: var(--surface); z-index: 1;
}
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: var(--surface-2); }
tbody tr:last-child td { border-bottom: none; }
td .muted { color: var(--text-faint); }
.row-flag-high td:first-child { box-shadow: inset 3px 0 var(--bad); }
.row-flag-low td:first-child { box-shadow: inset 3px 0 var(--accent); }

/* ------------------------------------------------------------- controls -- */
button, .btn {
  font: inherit; font-weight: 600; font-size: .88rem;
  padding: .5rem .9rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--text); cursor: pointer; text-decoration: none;
  display: inline-flex; align-items: center; gap: .4rem; justify-content: center;
  transition: background .12s ease, border-color .12s ease, transform .06s ease;
}
button:hover, .btn:hover { background: var(--surface-2); }
button:active, .btn:active { transform: translateY(1px); }
button:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 86%, #000); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--text-dim); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { border-color: color-mix(in srgb, var(--bad) 45%, transparent); color: var(--bad); background: transparent; }
.btn-sm { padding: .3rem .6rem; font-size: .8rem; }
.btn-row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

input, select, textarea {
  font: inherit; font-size: .92rem; color: var(--text);
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); padding: .5rem .65rem; width: 100%;
}
/* Placeholders carry the suggested quantity on the entry screen. They must
   never be mistakable for a value that has actually been keyed in. */
input::placeholder {
  color: var(--text-faint);
  font-weight: 400;
  font-style: italic;
  opacity: .75;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 1px; border-color: var(--accent);
}
label.field { display: block; margin-bottom: .7rem; }
label.field > span { display: block; font-size: .78rem; font-weight: 620; color: var(--text-dim); margin-bottom: .25rem; }
.field-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .7rem; }

.seg { display: inline-flex; background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: 2px; }
.seg button { border: none; background: transparent; border-radius: 999px; padding: .32rem .8rem; font-size: .82rem; color: var(--text-dim); }
.seg button.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: 1rem; }
.toolbar input[type="date"], .toolbar input[type="month"], .toolbar select { width: auto; min-width: 150px; }

/* -------------------------------------------------------------- entry ---- */
.entry-guests {
  position: sticky; top: 56px; z-index: 30;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .85rem; margin-bottom: 1rem;
  box-shadow: var(--shadow);
}
.guest-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .7rem; }

.counter { display: flex; align-items: stretch; gap: .35rem; }
.counter input {
  text-align: center; font-size: 1.15rem; font-weight: 660;
  font-variant-numeric: tabular-nums; padding: .45rem .2rem;
}
.counter button {
  flex: 0 0 44px; font-size: 1.25rem; font-weight: 600; padding: 0;
  background: var(--surface-2); border-color: var(--border);
}

.cat-block { margin-bottom: 1.1rem; }
.cat-title {
  display: flex; align-items: center; gap: .5rem; margin: 0 0 .5rem;
  font-size: .78rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-faint); font-weight: 700;
}
.cat-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.item-list { display: grid; gap: .5rem; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.item {
  display: grid; grid-template-columns: 1fr auto; gap: .5rem .7rem; align-items: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .6rem .7rem;
}
.item.filled { border-color: color-mix(in srgb, var(--good) 45%, var(--border)); background: color-mix(in srgb, var(--good-soft) 55%, var(--surface)); }
.item-name { font-weight: 600; font-size: .95rem; }
.item-hint { font-size: .76rem; color: var(--text-faint); display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }
.item-hint button { padding: .1rem .45rem; font-size: .72rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent); border-color: transparent; font-weight: 650; }
.item-input { display: flex; align-items: center; gap: .3rem; }
.item-input input { width: 82px; text-align: right; font-weight: 640; font-variant-numeric: tabular-nums; }
.item-input .unit { font-size: .78rem; color: var(--text-faint); width: 34px; }
.item-input button { flex: 0 0 34px; padding: .35rem 0; font-size: 1rem; }

/* Pinned to the viewport rather than the document so the action bar is always
   within thumb reach, on any screen width. */
.entry-footer {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 35;
  padding: .7rem clamp(.75rem, 3vw, 1.5rem);
  padding-bottom: calc(.7rem + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
}
.entry-footer-inner {
  display: flex; gap: .6rem; align-items: center; flex-wrap: wrap;
  max-width: 1320px; margin: 0 auto; width: 100%;
}
.entry-footer button { flex: 1 1 auto; min-width: 92px; }
.entry-status { font-size: .84rem; color: var(--text-dim); flex: 1 1 100%; min-width: 140px; }

/* Room for the fixed action bar so the last ingredient is never trapped under it. */
.entry-page { padding-bottom: 132px; }

@media (min-width: 560px) {
  .entry-footer button { flex: 0 0 auto; }
  .entry-status { flex: 1 1 auto; }
  .entry-page { padding-bottom: 84px; }
}

/* --------------------------------------------------------------- charts -- */
.chart { width: 100%; overflow-x: auto; }
.chart svg { display: block; max-width: 100%; height: auto; }
.legend { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .6rem; font-size: .8rem; color: var(--text-dim); }
.legend span { display: inline-flex; align-items: center; gap: .35rem; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

.bar-track { background: var(--surface-3); border-radius: 999px; height: 7px; overflow: hidden; min-width: 60px; }
.bar-fill { height: 100%; border-radius: 999px; background: var(--accent); }

/* --------------------------------------------------------------- login --- */
.login-wrap { min-height: 100dvh; display: grid; place-items: center; padding: 1.5rem; }
.login-card { width: 100%; max-width: 380px; text-align: center; }
.pin-display {
  font-family: var(--mono); font-size: 1.8rem; letter-spacing: .5rem;
  height: 3rem; display: grid; place-items: center; margin: .5rem 0 1rem;
  color: var(--text);
}
.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
.keypad button { height: 58px; font-size: 1.3rem; font-weight: 600; }

/* -------------------------------------------------------------- toasts --- */
.toasts { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); z-index: 100; display: grid; gap: .4rem; width: min(420px, calc(100vw - 2rem)); }
/* Lift toasts clear of the entry screen's fixed action bar. */
body:has(.entry-footer) .toasts { bottom: calc(4.75rem + env(safe-area-inset-bottom)); }
.toast {
  padding: .6rem .85rem; border-radius: var(--radius-sm); font-size: .88rem; font-weight: 550;
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
  animation: toast-in .18s ease;
}
.toast.good { border-color: color-mix(in srgb, var(--good) 45%, transparent); color: var(--good); }
.toast.bad { border-color: color-mix(in srgb, var(--bad) 45%, transparent); color: var(--bad); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* ---------------------------------------------------------------- misc --- */
.boot { min-height: 100dvh; display: grid; place-content: center; text-align: center; color: var(--text-dim); gap: .5rem; }
.boot-mark { font-size: 2.5rem; }
.empty { text-align: center; padding: 2rem 1rem; color: var(--text-faint); }
.empty h3 { color: var(--text-dim); margin-bottom: .35rem; }
.muted { color: var(--text-faint); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }
.hidden { display: none !important; }
.skeleton { background: linear-gradient(90deg, var(--surface-2), var(--surface-3), var(--surface-2)); background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: var(--radius-sm); height: 1rem; }
@keyframes shimmer { to { background-position: -200% 0; } }

@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; }
  .nav { order: 3; width: 100%; padding-top: .35rem; }
  .entry-guests { top: 104px; }
  .stat-value { font-size: 1.45rem; }
}

@media print {
  .topbar, .entry-footer, .toolbar, .toasts { display: none !important; }
  .card { break-inside: avoid; box-shadow: none; }
}