/* WillCel: page styles built on the shared design tokens. */

.wc-section { padding-bottom: clamp(1.5rem, 1rem + 2vw, 2.5rem); }

/* App window ------------------------------------------------------------ */
.wc-app {
  --wc-col: 7.25rem;
  --wc-col-a: 14.5rem;
  --wc-row: 32px;
  --wc-rowhead: 3rem;
  --wc-head-bg: linear-gradient(var(--surface-2), var(--surface-2)), var(--surface-solid);
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-strong);
  background: var(--surface-solid);
  box-shadow: var(--inner-glow), var(--shadow-lg);
  overflow: hidden;
  isolation: isolate;
}
.wc-app::before {
  /* soft accent glow along the top edge */
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  opacity: 0.7;
  z-index: 5;
  pointer-events: none;
}

.wc-titlebar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--gradient-soft), var(--surface-solid);
  min-height: 44px;
}
.wc-dots { display: inline-flex; gap: 6px; }
.wc-dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--border-strong); }
.wc-dots i:first-child { background: var(--accent); opacity: 0.85; }
.wc-filename { min-width: 0; font-size: var(--fs-xs); color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wc-save {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 0;
}
#wc-save-text { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.wc-save-dot { flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); transition: background var(--dur) var(--ease); }
.wc-save[data-state="saving"] .wc-save-dot { background: var(--accent-2); animation: wc-pulse 0.9s var(--ease) infinite; }
.wc-save[data-state="off"] .wc-save-dot { background: var(--warning); box-shadow: 0 0 0 3px var(--warning-soft); }
@keyframes wc-pulse { 50% { transform: scale(0.6); opacity: 0.6; } }

/* Toolbar ---------------------------------------------------------------- */
.wc-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.wc-tool-group { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; }
.wc-tool-group + .wc-tool-group:not(.wc-tool-group-end) { padding-left: 0.75rem; border-left: 1px solid var(--border); }
.wc-tool-group-end { margin-left: auto; gap: 0.35rem; }
.wc-tool {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 36px;
  height: 36px;
  padding: 0 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font: 500 var(--fs-sm)/1 var(--font-sans);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.wc-tool svg, .wc-btn-icon, .wc-fx-btn svg, .wc-edit-btn svg {
  width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex: none;
}
.wc-btn-icon { width: 16px; height: 16px; margin-right: 0.15rem; }
.wc-tool:hover:not(:disabled) { background: var(--surface-hover); color: var(--text); }
.wc-tool:active:not(:disabled) { transform: scale(0.94); }
.wc-tool:disabled { opacity: 0.4; cursor: default; }
.wc-tool[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent-soft-strong); color: var(--accent-text); }
.wc-tool-text { font-family: var(--font-mono); font-size: 0.95rem; }
.wc-tool-text b { font-weight: 800; font-family: var(--font-sans); }
.wc-sigma { font-size: 1.05rem; font-weight: 600; color: var(--accent-text); }
.wc-danger:hover { color: var(--danger); }

/* Formula row ------------------------------------------------------------- */
.wc-formula-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.wc-namebox, .wc-bar {
  height: 36px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--input-bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0 0.65rem;
  min-width: 0;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.wc-namebox { width: 5.5rem; flex: none; text-align: center; font-weight: 600; text-transform: uppercase; }
.wc-bar { flex: 1 1 auto; }
.wc-bar::placeholder { color: var(--text-faint); opacity: 1; }
.wc-namebox:focus, .wc-bar:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.wc-namebox:focus-visible, .wc-bar:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 1px; }
.wc-fx {
  flex: none;
  font: italic 600 1rem/1 Georgia, "Times New Roman", serif;
  color: var(--accent-text);
  padding: 0 0.15rem;
}
.wc-fx-actions { display: flex; gap: 0.15rem; flex: none; }
.wc-fx-actions[hidden] { display: none; }
.wc-fx-btn, .wc-edit-btn {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
}
.wc-fx-btn.is-ok { color: var(--accent-text); }
.wc-fx-btn:hover, .wc-edit-btn:hover { background: var(--surface-hover); }
.wc-edit-btn { color: var(--text-muted); flex: none; }
.wc-edit-btn[hidden] { display: none; }

/* Grid ------------------------------------------------------------------- */
.wc-scroll {
  position: relative;
  overflow: auto;
  max-height: min(68vh, 720px);
  min-height: 260px;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  background: var(--surface-solid);
  scrollbar-color: var(--border-strong) transparent;
}
.wc-grid {
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  /* explicit width so the fixed layout (and ellipsis) applies: row header + A + B..L */
  width: calc(var(--wc-rowhead) + var(--wc-col-a) + 11 * var(--wc-col));
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}
.wc-grid:focus { outline: none; }
/* Keyboard focus on the grid: ring the whole scroll area as well as the active cell */
.wc-scroll:has(.wc-grid:focus-visible) { outline: 2px solid var(--focus-ring); outline-offset: -2px; }
.wc-grid col.wc-col-rowhead { width: var(--wc-rowhead); }
.wc-grid col.wc-col { width: var(--wc-col); }
.wc-grid col.wc-col-a { width: var(--wc-col-a); }

.wc-grid th, .wc-grid td {
  height: var(--wc-row);
  padding: 0 0.55rem;
  border-right: 1px solid var(--grid-line-strong);
  border-bottom: 1px solid var(--grid-line-strong);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.wc-grid thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--wc-head-bg);
  color: var(--text-faint);
  font-weight: 500;
  font-size: 0.72rem;
  text-align: center;
  border-bottom-color: var(--border-strong);
  transition: color var(--dur-fast) var(--ease);
}
.wc-grid tbody th {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--wc-head-bg);
  color: var(--text-faint);
  font-weight: 500;
  font-size: 0.72rem;
  text-align: center;
  border-right-color: var(--border-strong);
  padding: 0 0.25rem;
}
.wc-grid thead th.wc-corner { left: 0; z-index: 4; border-right-color: var(--border-strong); }
.wc-corner-mark { display: block; width: 0; height: 0; margin: auto 0 0 auto; border-style: solid; border-width: 0 0 8px 8px; border-color: transparent transparent var(--border-strong) transparent; }
.wc-grid th.is-hl { color: var(--accent-text); background: linear-gradient(var(--accent-soft), var(--accent-soft)), var(--wc-head-bg); }
.wc-grid thead th.is-hl { box-shadow: inset 0 -2px 0 var(--accent); }
.wc-grid tbody th.is-hl { box-shadow: inset -2px 0 0 var(--accent); }

.wc-grid td {
  position: relative;
  background: var(--surface-solid);
  cursor: cell;
  text-align: left;
}
.wc-grid td.is-num { text-align: right; }
.wc-grid td.is-center { text-align: center; }
.wc-grid td.is-bold { font-weight: 650; }
.wc-grid td.is-err { color: var(--danger); font-weight: 600; }
.wc-grid td.is-bool { color: var(--accent-2); }
.wc-grid td.is-sel { background: linear-gradient(var(--accent-soft), var(--accent-soft)), var(--surface-solid); }
.wc-grid td.is-active { background: var(--surface-solid); }
.wc-grid td.is-active::after {
  content: "";
  position: absolute;
  inset: -1px;
  border: 2px solid var(--accent);
  border-radius: 2px;
  pointer-events: none;
  z-index: 1;
}
.wc-grid td.is-active::before {
  /* the fill handle */
  content: "";
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border: 1.5px solid var(--surface-solid);
  z-index: 2;
  pointer-events: none;
}
.wc-grid td.is-ref-hl { box-shadow: inset 0 0 0 1.5px var(--accent-2); }
.wc-grid td.is-flash { animation: wc-flash 900ms var(--ease); }
@keyframes wc-flash {
  from { box-shadow: inset 0 0 0 100vmax var(--accent-soft-strong); color: var(--accent-text); }
  to { box-shadow: inset 0 0 0 100vmax transparent; }
}
.wc-grid:focus-visible td.is-active::after { box-shadow: 0 0 0 3px var(--accent-soft-strong); }
.wc-grid:not(:focus):not(.is-editing) td.is-active::after { border-color: color-mix(in srgb, var(--accent) 65%, transparent); }

/* In-cell editor */
.wc-editor {
  position: absolute;
  z-index: 6;
  height: var(--wc-row);
  margin: 0;
  padding: 0 0.5rem;
  border: 2px solid var(--accent);
  border-radius: 2px;
  background: var(--surface-solid);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow-md);
  outline: none;
}
.wc-editor[hidden] { display: none; }

/* Status bar ------------------------------------------------------------- */
.wc-statusbar {
  display: flex;
  align-items: center;
  gap: 0.75rem 1rem;
  flex-wrap: wrap;
  min-height: 38px;
  padding: 0.45rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--wc-head-bg);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}
.wc-mode {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-faint);
  min-width: 4.5rem;
}
.wc-mode::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.wc-mode[data-mode="Enter"]::before, .wc-mode[data-mode="Edit"]::before { background: var(--accent-2); }
.wc-msg { flex: 1 1 12rem; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wc-msg.is-warn { color: var(--warning); }
.wc-msg.is-err { color: var(--danger); }
.wc-stats { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; margin-left: auto; }
.wc-stats b { color: var(--text); font-weight: 600; }

.wc-touch-tip { display: none; }
@media (hover: none) and (pointer: coarse) {
  .wc-touch-tip { display: block; }
}

/* Small screens -------------------------------------------------------- */
@media (max-width: 639px) {
  .wc-app { --wc-col: 6.25rem; --wc-col-a: 10rem; --wc-rowhead: 2.4rem; --wc-row: 36px; border-radius: var(--radius-lg); }
  .wc-toolbar { padding: 0.5rem; gap: 0.4rem; }
  .wc-tool-group + .wc-tool-group:not(.wc-tool-group-end) { padding-left: 0; border-left: 0; }
  .wc-tool { min-width: 34px; padding: 0 0.4rem; }
  .wc-tool-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .wc-tool-group-end { margin-left: 0; width: 100%; }
  .wc-tool-group-end .btn { flex: 1 1 auto; }
  .wc-formula-row { padding: 0.5rem; gap: 0.35rem; }
  .wc-namebox { width: 4rem; padding: 0 0.3rem; }
  .wc-fx { display: none; }
  .wc-namebox, .wc-bar, .wc-editor { font-size: 16px; } /* stops iOS zooming on focus */
  .wc-scroll { max-height: 62vh; }
  .wc-statusbar { padding: 0.45rem 0.75rem; }
}

/* Help section ---------------------------------------------------------- */
.wc-help .section-head { max-width: 46rem; }
.wc-recipes { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: 0.5rem; }
@media (min-width: 640px) { .wc-recipes { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.wc-recipe {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  width: 100%;
  height: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-muted);
  font: inherit;
  font-size: var(--fs-sm);
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.wc-recipe code {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent-text);
  font-size: 0.82rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.wc-recipe:hover { border-color: var(--accent-soft-strong); background: var(--accent-soft); }
.wc-recipe:active { transform: scale(0.985); }

.wc-keys, .wc-errors { margin: 1rem 0 0; display: grid; gap: 0.55rem; }
.wc-keys > div, .wc-errors > div { display: grid; gap: 0.15rem; }
.wc-keys dt { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem; font-size: var(--fs-sm); color: var(--text-faint); }
.wc-keys dd, .wc-errors dd { margin: 0; font-size: var(--fs-sm); color: var(--text-muted); }
.wc-errors dt code { color: var(--danger); font-weight: 600; }

.wc-fns { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.wc-fns li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-muted);
}

@media print {
  .wc-toolbar, .wc-formula-row, .wc-statusbar, .wc-help { display: none; }
  .wc-scroll { max-height: none; overflow: visible; }
}

/* Help card polish */
.wc-help .card-head { justify-content: flex-start; gap: 0.75rem; }
.wc-keys > div + div, .wc-errors > div + div { padding-top: 0.55rem; border-top: 1px solid var(--border); }