/* omacus.com/app: the notepad calculator in the browser. Colours and fonts come
   from site.css; this is the app's layout. */

/* Elements styled with a display value still hide with the hidden attribute. */
.app-page [hidden] {
  display: none !important;
}

.app-page {
  --bar: 56px;
  --side-w: 240px;
  --line-h: 1.7;
  --font-size: 15px;
  --res-w: 12ch;
  height: 100dvh;
  overflow: hidden;
  background: var(--app-bg);
  color: var(--app-fg);
}

/* ---------- Top bar ---------- */

.bar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--bar);
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: var(--app-side);
}

.bar .brand {
  font-size: 16px;
}

.bar-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  color: var(--app-dim);
  font: 500 13px var(--mono);
  white-space: nowrap;
  text-overflow: ellipsis;
}

.bar-title::before {
  content: "/ ";
  color: var(--line-2);
}

.bar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar .btn {
  padding: 8px 14px;
  font-size: 14px;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: transparent;
  color: var(--text-2);
  font: 500 18px/1 var(--sans);
  cursor: pointer;
}

.icon-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.icon-btn.small {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  font-size: 16px;
}

/* Sheets button on phones: three bars. */
.sheets-toggle {
  display: none;
  position: relative;
}

.sheets-toggle span {
  position: absolute;
  left: 10px;
  width: 15px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
}

.sheets-toggle span:nth-child(1) { top: 12px; }
.sheets-toggle span:nth-child(2) { top: 17px; }
.sheets-toggle span:nth-child(3) { top: 22px; }

/* ---------- Menu ---------- */

.menu {
  position: relative;
}

.menu-list {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 30;
  min-width: 230px;
  padding: 6px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 20px 50px -20px #000;
}

.menu-list button,
.menu-list a {
  display: block;
  width: 100%;
  padding: 9px 12px;
  border: 0;
  border-radius: 7px;
  background: none;
  color: var(--text-2);
  font: 500 14px var(--sans);
  text-align: left;
  cursor: pointer;
}

.menu-list button:hover,
.menu-list a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.menu-list .danger {
  color: #e57373;
}

.menu-list hr {
  margin: 5px 6px;
  border: 0;
  border-top: 1px solid var(--line);
}

/* ---------- Layout ---------- */

.workspace {
  display: grid;
  grid-template-columns: var(--side-w) minmax(0, 1fr);
  height: calc(100dvh - var(--bar));
}

.side {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-right: 1px solid var(--line);
  background: var(--app-side);
}

.side-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 12px 8px 16px;
  color: var(--app-dim);
  font: 500 11.5px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sheet-list {
  flex: 1;
  overflow-y: auto;
  padding: 2px 8px 12px;
}

.sheet-list button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 8px;
  background: none;
  color: var(--app-dim);
  font: 14px var(--mono);
  text-align: left;
  cursor: pointer;
}

.sheet-list button span {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.sheet-list button:hover {
  background: var(--app-hover);
  color: var(--app-fg);
}

.sheet-list button[aria-current="true"] {
  background: var(--app-sel);
  color: var(--app-fg);
  box-shadow: inset 2px 0 0 var(--app-accent);
}

.sheet-list .shared-tag {
  flex: none;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--accent-glow);
  color: var(--accent-hi);
  font: 600 10.5px var(--sans);
}

.side-foot {
  padding: 12px 16px 16px;
  border-top: 1px solid var(--line);
  color: var(--app-dim);
  font-size: 12.5px;
}

.side-foot summary {
  cursor: pointer;
  list-style: none;
}

.side-foot summary::before {
  content: "● ";
  color: #4caf50;
  font-size: 9px;
  vertical-align: 2px;
}

.side-foot p {
  margin: 8px 0 0;
  line-height: 1.5;
}

.ios-hint {
  margin: 0 12px 10px;
  padding: 10px 12px;
  border: 1px solid rgba(240, 161, 42, 0.25);
  border-radius: 9px;
  background: var(--accent-glow);
  color: var(--text-2);
  font-size: 12.5px;
  line-height: 1.5;
}

.ios-hint b {
  color: var(--text);
}

/* ---------- Sheet ---------- */

.sheet {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.shared-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(240, 161, 42, 0.1), transparent);
  color: var(--text-2);
  font-size: 14px;
}

.shared-banner b {
  color: var(--text);
}

.shared-banner .btn:first-of-type {
  margin-left: auto;
}

.toast a {
  color: var(--accent-hi);
}

.btn.small {
  padding: 6px 12px;
  font-size: 13.5px;
}

.editor {
  position: relative;
  flex: 1;
  min-height: 0;
  font: var(--font-size) / var(--line-h) var(--mono);
}

/* The textarea holds the text and the caret; the layer on top draws the colours
   and the answers. Both wrap at exactly the same width. */
.editor textarea,
.editor .rows {
  padding: 22px calc(var(--res-w) + 56px) 40vh 28px;
  font: inherit;
  letter-spacing: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  tab-size: 4;
}

.editor textarea {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  outline: 0;
  resize: none;
  overflow-y: auto;
  background: transparent;
  color: transparent;
  caret-color: var(--app-accent);
  -webkit-text-fill-color: transparent;
  /* No scrollbar: it would narrow the text and the layer would wrap differently. */
  scrollbar-width: none;
}

.editor textarea::-webkit-scrollbar {
  display: none;
}

.editor textarea::selection {
  background: rgba(230, 142, 13, 0.28);
}

/* Above the textarea so answers can be clicked; everything else lets clicks through. */
.layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.rows {
  position: relative;
  color: var(--app-fg);
  will-change: transform;
}

.row {
  position: relative;
  min-height: calc(var(--line-h) * 1em);
}

/* The answer sits in the right gutter, on the row's first line. */
.res {
  position: absolute;
  top: 0;
  right: calc(-1 * (var(--res-w) + 28px));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  width: var(--res-w);
  height: calc(var(--line-h) * 1em);
  overflow: hidden;
  color: var(--app-accent);
  white-space: nowrap;
  pointer-events: auto;
  cursor: pointer;
  border-radius: 5px;
}

.res b {
  min-width: 0;
  overflow: hidden;
  font-weight: inherit;
  text-overflow: ellipsis;
}

.res:hover {
  background: var(--app-hover);
}

.res.copied {
  color: var(--app-dim);
}

.swatch {
  flex: none;
  width: 0.8em;
  height: 0.8em;
  border-radius: 3px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.t-head {
  color: var(--app-accent);
}

/* ---------- Autocomplete ---------- */

.suggest {
  position: absolute;
  z-index: 20;
  min-width: 140px;
  max-height: 240px;
  margin: 0;
  padding: 4px;
  overflow-y: auto;
  border: 1px solid var(--app-sel);
  border-radius: 8px;
  background: var(--app-side);
  box-shadow: 0 16px 40px -16px #000;
  list-style: none;
  font: 13.5px / 1.4 var(--mono);
}

.suggest li {
  padding: 5px 10px;
  border-radius: 5px;
  color: var(--app-fg);
  cursor: pointer;
}

.suggest li[aria-selected="true"] {
  background: var(--app-sel);
  color: var(--app-accent);
}

.loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  color: var(--app-dim);
  font: 14px var(--mono);
  background: var(--app-bg);
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: max(24px, env(safe-area-inset-bottom));
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: min(560px, calc(100vw - 32px));
  padding: 11px 16px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
  box-shadow: 0 20px 50px -20px #000;
  transform: translateX(-50%);
}

.toast small {
  color: var(--muted);
}

.toast button {
  border: 0;
  background: none;
  color: var(--accent-hi);
  font: 600 14px var(--sans);
  cursor: pointer;
}

/* ---------- Phones ---------- */

@media (max-width: 760px) {
  .app-page {
    --font-size: 14px;
  }

  .sheets-toggle {
    display: grid;
  }

  .bar .brand {
    display: none;
  }

  .workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .side {
    position: fixed;
    top: var(--bar);
    bottom: 0;
    left: 0;
    z-index: 40;
    width: min(300px, 84vw);
    transform: translateX(-102%);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 20px 0 60px -20px #000;
  }

  .app-page.drawer .side {
    transform: none;
  }

  .editor textarea,
  .editor .rows {
    padding: 16px calc(var(--res-w) + 32px) 40vh 16px;
  }

  .res {
    right: calc(-1 * (var(--res-w) + 16px));
  }

  .shared-banner {
    flex-wrap: wrap;
    gap: 8px;
  }
}