/* Master Control — ui-plan.md §3.
 *
 * Extends the dashboard's tokens rather than restating them. Only what
 * a dense entry grid needs that a read-only dashboard did not.
 */

:root {
  --row-h: 34px;
  --field-h: 30px;
  --focus: #2f6f9f;
  --focus-ring:
    0 0 0 2px var(--surface),
    0 0 0 4px var(--focus);
  /* The most useful distinction on a data-entry screen: what you type
     in, and what the machine worked out. Derived cells are never
     inputs, and they do not look like them. */
  --derived-ink: var(--ink-muted);
  /* Not --bad. That already means overdue money, which is ordinary.
     This means "this destroys things". */
  --danger: #8c1d18;
  --danger-bg: #fdf3f2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --danger: #e08a82;
    /* A stain, not a highlight: a pink tint on a dark surface reads as
       decoration rather than warning. */
    --danger-bg: #2a1a19;
  }
}

/* Every number in a column has to line up or the eye cannot scan it. */
.num,
.grid input,
.totals b {
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.login-card {
  max-width: 26rem;
  margin: 12vh auto;
  display: grid;
  gap: 0.5rem;
}
.login-card h1 {
  margin: 0;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-raised);
}
.topbar-end {
  margin-left: auto;
  display: flex;
  gap: 0.75rem;
  align-items: center;
}
#nav button {
  background: none;
  border: 0;
  color: var(--ink-muted);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius);
  cursor: pointer;
}
#nav button.active {
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
}

main {
  padding: 1rem;
  max-width: 72rem;
  margin: 0 auto;
}

.entry-head {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}
.field {
  display: grid;
  gap: 0.2rem;
  position: relative;
}
.field.wide {
  flex: 1 1 18rem;
}
.field.narrow input {
  width: 8rem;
}
label {
  font-size: 0.8rem;
  color: var(--ink-muted);
}
input,
select {
  height: var(--field-h);
  padding: 0 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-raised);
  color: var(--ink);
  font: inherit;
}
input:focus-visible,
select:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.hint {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-muted);
  min-height: 1.1em;
}
.hint.warn {
  color: var(--warn);
}

/* The picker. A code names a product only with its brand — three share
   55X — so the list shows both and the stock that tells them apart. */
.combo-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 20;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-height: 16rem;
  overflow-y: auto;
}
.combo-item {
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
}
.combo-item[aria-selected="true"] {
  background: var(--surface);
}
.combo-item .code {
  font-weight: 600;
  min-width: 4.5rem;
}
.combo-item .brand {
  color: var(--ink-muted);
  min-width: 5rem;
}
.combo-item .desc {
  color: var(--ink-muted);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.combo-item .stock {
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}
.combo-item.create {
  border-top: 1px solid var(--border);
  color: var(--series-1);
}

.grid {
  width: 100%;
  border-collapse: collapse;
}
.grid th {
  font-size: 0.75rem;
  color: var(--ink-muted);
  text-align: left;
  font-weight: 500;
  padding: 0 0.4rem 0.3rem;
  border-bottom: 1px solid var(--border);
}
.grid th .unit {
  display: block;
  font-size: 0.68rem;
  opacity: 0.7;
}
.grid td {
  padding: 2px 0.2rem;
  height: var(--row-h);
}
.grid input {
  width: 100%;
  border-color: transparent;
  background: transparent;
}
.grid input:hover {
  border-color: var(--border);
}
.grid input:focus {
  background: var(--surface-raised);
}
/* Derived, so not an input at all. */
.grid .derived {
  color: var(--derived-ink);
  padding-right: 0.5rem;
}
.grid .line-note {
  font-size: 0.75rem;
  color: var(--warn);
  padding: 0 0.4rem 0.3rem;
}
.grid .drop {
  background: none;
  border: 0;
  color: var(--ink-muted);
  cursor: pointer;
  font-size: 1rem;
}
.grid .drop:hover {
  color: var(--danger);
}

/* A checkbox that reads as one line with its label, rather than a
   stacked field -- it switches a list, it does not fill in a form. */
.inline-check {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
  cursor: pointer;
}

.inline-check input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--series-1, #3f7cac);
}

/* The only way to add a line on a phone. Full width there because it is
   the next thing you do after filling a row, and a 44px target you can
   hit without looking beats a tidy inline link. */
.add-line {
  margin-top: 0.6rem;
  background: none;
  border: 1px dashed var(--border);
  color: var(--ink-muted);
  border-radius: var(--radius, 8px);
  padding: 0.55rem 0.9rem;
  font-weight: 550;
}

.add-line:hover {
  border-style: solid;
  color: var(--ink);
}

@media (max-width: 768px) {
  .add-line {
    display: block;
    width: 100%;
    min-height: 44px;
  }
}

.entry-foot {
  display: flex;
  gap: 2rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}
.charges {
  flex: 1 1 20rem;
  display: grid;
  gap: 0.5rem;
  align-content: start;
}
.charges h3 {
  margin: 0;
  font-size: 0.9rem;
}
.charge-row {
  display: flex;
  gap: 0.4rem;
}
.charge-row input:first-child {
  flex: 1;
}
.charge-row input:last-of-type {
  width: 7rem;
}
.totals {
  flex: 0 0 20rem;
  display: grid;
  gap: 0.3rem;
  align-content: start;
}
.totals div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.totals .grand {
  border-top: 1px solid var(--border);
  padding-top: 0.4rem;
  font-size: 1.1rem;
  font-weight: 600;
}
.totals .balance {
  color: var(--warn);
}

.entry-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 1.5rem;
}
.primary {
  background: var(--series-1);
  color: #fff;
  border: 0;
  border-radius: var(--radius);
  padding: 0.5rem 1.2rem;
  font: inherit;
  cursor: pointer;
}
.primary:disabled {
  opacity: 0.5;
  cursor: default;
}
.link {
  background: none;
  border: 0;
  color: var(--ink-muted);
  cursor: pointer;
  text-decoration: underline;
  font: inherit;
}

.banner {
  padding: 0.6rem 1rem;
  background: var(--danger-bg);
  color: var(--danger);
  border-bottom: 1px solid var(--border);
}
.banner.ok {
  background: transparent;
  color: var(--good);
}
.draft-bar {
  padding: 0.5rem 1rem;
  background: var(--surface-raised);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 0.75rem;
  align-items: center;
}
.error {
  color: var(--bad);
}

@media (max-width: 800px) {
  /* Entry is designed for a laptop (ui-plan.md §9). It stacks and stays
     usable for a two-line bill; it is not pretending to be a phone form. */
  .grid th .unit {
    display: none;
  }
  .entry-foot {
    gap: 1rem;
  }
}

/* The admin pages stack cards; the entry form does not. Spacing only —
 * the card, grid-2 and table styles all come from the dashboard's
 * stylesheet, which control.html loads first. One visual language. */
#page-money .card,
#page-stock .card,
#page-whatsapp .card,
#page-system .card {
  margin-bottom: 1rem;
  display: grid;
  gap: 0.6rem;
  align-content: start;
}
#page-money h2,
#page-stock h2,
#page-whatsapp h2,
#page-system h2 {
  margin: 0;
  font-size: 1rem;
}
#page-stock .card button,
#page-whatsapp .card button,
#page-money .card button {
  justify-self: start;
}

/* A long list inside a card scrolls on its own rather than pushing the
   next card off the screen. The catalogue and the message log are both
   "as many rows as there are". */
#products,
#messages,
#contacts {
  max-height: 22rem;
  overflow: auto;
}

/* Failure is the row worth seeing, so it is the row that is coloured. */
.grid td.failed,
.msg-fail {
  color: var(--danger);
}
.msg-cause {
  padding: 0.4rem 0.6rem;
  border-left: 3px solid var(--danger);
  background: var(--danger-bg);
  margin-bottom: 0.4rem;
}
.msg-cause b {
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------- correcting a bill */

/* The form is the same one bills are typed into, so this bar is the
   only thing saying which bill is open -- and that a Save here changes
   something that already exists rather than making something new. */
.editing-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.6rem 0.9rem;
  margin-bottom: 0.9rem;
  border: 1px solid var(--series-1, #3f7cac);
  border-radius: var(--radius, 8px);
  background: color-mix(in oklab, var(--series-1, #3f7cac) 10%, transparent);
}

/* Struck through rather than hidden: a line waiting to be taken off is
   still on the bill until the save, and it has to be possible to change
   your mind about it. */
.row-removed td {
  opacity: 0.45;
  text-decoration: line-through;
}

.row-removed td:last-child {
  text-decoration: none;
  opacity: 1;
}

.change-list {
  margin: 0.3rem 0 0.8rem;
  padding-left: 1.1rem;
}

.change-list li {
  margin-bottom: 0.2rem;
}

/* An invoice number that opens something reads as a link, not a label. */
.open-bill {
  font-weight: 600;
  color: var(--series-1, #3f7cac);
  padding: 0;
}

/* The money question, asked on the page. It is not a warning about
   something going wrong -- it is arithmetic the person has to agree
   with before it becomes true. */
.pay-gap {
  border: 1px solid var(--warn, #a86b00);
  border-radius: var(--radius, 8px);
  padding: 0.7rem 0.9rem;
  margin: 0.6rem 0 0.9rem;
  background: color-mix(in oklab, var(--warn, #a86b00) 8%, transparent);
}

.pay-gap h3 {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
}

.pay-gap p {
  margin: 0;
  font-size: 0.9rem;
}