/* Legibility only. Styling the browser client properly is not improvise-cr3. */

:root {
  --bg: #fbfaf7;
  --fg: #1c1b19;
  --line: #d8d4cc;
  --accent: #2f6f4f;
  --selected: #e8e2d4;
  --error: #a8322d;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181a;
    --fg: #e7e4de;
    --line: #35373b;
    --accent: #7fc4a0;
    --selected: #2c2f33;
    --error: #e2827c;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}

header {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--line);
}

header h1 {
  margin: 0;
  font-size: 1rem;
  color: var(--accent);
}

#mode {
  color: var(--accent);
}

#status {
  margin-left: auto;
  opacity: 0.75;
}

main {
  flex: 1;
  display: flex;
  min-height: 0;
}

#categories {
  width: 15rem;
  flex: none;
  overflow: auto;
  padding: 0.5rem;
  border-right: 1px solid var(--line);
}

#formulas,
#views {
  width: 18rem;
  flex: none;
  overflow: auto;
  padding: 0.5rem;
  border-right: 1px solid var(--line);
}

#categories ul,
#formulas ul,
#views ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

#views .axes {
  margin-left: 0.5rem;
  opacity: 0.6;
  font-size: 0.85em;
}

#views .active .name {
  color: var(--accent);
}

/* The tile bar. One line above the grid, as the TUI draws it. */
#tiles {
  display: flex;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  white-space: nowrap;
}

#tiles .tile {
  padding: 0 0.4rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-size: 0.85em;
}

#categories .item {
  padding-left: 1.5rem;
  opacity: 0.85;
}

#categories .selected,
#formulas .selected,
#views .selected,
#tiles .selected,
td.selected {
  background: var(--selected);
  outline: 1px solid var(--accent);
}

#hint {
  opacity: 0.7;
  font-size: 0.85em;
}

/* A keyboard edit in progress. Left-aligned even in a numeric column,
   because what is drawn is the text being typed rather than a value. */
td.typing {
  text-align: left;
  outline: 2px solid var(--accent);
}

#grid {
  flex: 1;
  overflow: auto;
  padding: 0.5rem;
}

table {
  border-collapse: collapse;
}

th,
td {
  border: 1px solid var(--line);
  padding: 0.25rem 0.5rem;
  min-width: 6rem;
  height: 1.75rem;
  text-align: left;
  font-weight: normal;
}

th {
  background: color-mix(in srgb, var(--line) 35%, transparent);
  font-weight: 600;
}

/* A group header, on either axis. The TUI draws these green and bold; the
   glyph is already in the text (`indicator` in app.js). */
th.group {
  color: var(--accent, inherit);
  font-weight: 700;
}

td.numeric {
  text-align: right;
}

td.error {
  color: var(--error);
}

/* The only affordance that matters: a cell the server said is settable. */
td.editable {
  cursor: text;
}

td:not(.editable) {
  opacity: 0.7;
}

td input {
  width: 100%;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  background: transparent;
}

/* The page cannot reach a server from a static host, and says so. */
#backend-notice {
  margin: 0;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  font-size: 0.85rem;
}

#backend-notice code {
  background: color-mix(in srgb, var(--line) 45%, transparent);
  padding: 0 0.25rem;
}

/* The help overlay. Content is improvise_protocol::help's; this is paint. */
#help {
  position: fixed;
  inset: 2rem;
  overflow: auto;
  padding: 1rem;
  border: 1px solid var(--accent);
  background: var(--bg);
  font-size: 0.9rem;
}

.help-tabs {
  display: flex;
  gap: 0.75rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
}

.help-tab.active {
  color: var(--accent);
  font-weight: 600;
}

.help-body {
  display: grid;
  grid-template-columns: 16rem 1fr;
  gap: 0 1rem;
  margin: 0;
}

.help-body dt,
.help-body dd {
  margin: 0;
  min-height: 1.2em;
}

.help-heading {
  grid-column: 1 / -1;
  font-weight: 600;
  color: var(--accent);
}

.help-banner {
  grid-column: 1 / -1;
  font-weight: 700;
}

.help-text,
.help-accent,
.help-blank {
  grid-column: 1 / -1;
  white-space: pre;
}

.help-dim {
  opacity: 0.7;
}