:root {
  --green: #0f9d58;
  --green-dark: #0b8043;
  --blue: #1a73e8;
  --blue-soft: #d3e3fd;
  --grid-line: #e1e3e6;
  --head-bg: #f8f9fa;
  --head-line: #c7cbd1;
  --ink: #202124;
  --ink-soft: #5f6368;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: Roboto, Arial, sans-serif;
  font-size: 13px;
  color: var(--ink);
  background: #fff;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ---------- header ---------- */
.app-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 4px;
}
.doc-icon { display: flex; align-items: center; }
.doc-meta { flex: 1; min-width: 0; }
.doc-title-row { display: flex; align-items: center; gap: 8px; }
.doc-title { font-size: 18px; font-weight: 400; color: var(--ink); white-space: nowrap; }
.mini-ic { width: 16px; height: 16px; }
.menubar { display: flex; gap: 2px; margin-top: 2px; }
.menubar span {
  font-size: 13px;
  color: var(--ink);
  padding: 1px 7px;
  border-radius: 4px;
  cursor: default;
  user-select: none;
}
.menubar span:hover { background: #f1f3f4; }
.header-right { display: flex; align-items: center; gap: 14px; }
.share-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #c2e7d9;
  color: #072711;
  border: none;
  font: 500 14px Roboto, Arial, sans-serif;
  padding: 9px 18px;
  border-radius: 100px;
  cursor: pointer;
}
.share-btn:hover { background: #b0dfcd; box-shadow: 0 1px 3px rgba(0,0,0,.2); }
.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--green-dark);
  color: #fff;
  font: 500 15px Roboto, Arial, sans-serif;
  display: flex; align-items: center; justify-content: center;
  user-select: none;
}

/* ---------- toolbar ---------- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #edf2fa;
  border-radius: 100px;
  margin: 6px 16px;
  padding: 5px 14px;
  min-height: 40px;
  flex-wrap: wrap;
}
.tb-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tb-ic { width: 18px; height: 18px; flex: none; }
.toolbar input[type=text] {
  border: none;
  background: transparent;
  font: 13px Roboto, Arial, sans-serif;
  width: 240px;
  outline: none;
  color: var(--ink);
}
.toolbar select {
  border: none;
  background: #fff;
  font: 13px Roboto, Arial, sans-serif;
  color: var(--ink);
  padding: 5px 8px;
  border-radius: 6px;
  max-width: 190px;
  cursor: pointer;
  outline: none;
}
.tb-sep { width: 1px; height: 22px; background: #c4c7c5; flex: none; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--blue-soft);
  color: #0b57d0;
  border-radius: 8px;
  padding: 3px 9px;
  font-size: 12px;
  cursor: pointer;
  user-select: none;
}
.chip:hover { background: #c0d8fc; }
.reset-btn {
  border: none;
  background: transparent;
  color: #0b57d0;
  font: 500 12px Roboto, Arial, sans-serif;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}
.reset-btn:hover { background: #e2eafc; }

/* ---------- formula bar ---------- */
.formula-bar {
  display: flex;
  align-items: center;
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--head-line);
  height: 28px;
}
.cell-ref {
  width: 88px;
  flex: none;
  text-align: center;
  font-size: 12px;
  color: var(--ink-soft);
  border-right: 1px solid var(--grid-line);
  line-height: 28px;
}
.fx {
  width: 40px;
  flex: none;
  text-align: center;
  color: var(--ink-soft);
  font-style: italic;
  font-size: 13px;
  border-right: 1px solid var(--grid-line);
  line-height: 28px;
}
.fx-value {
  padding: 0 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 12.5px;
}

/* ---------- grid ---------- */
.grid-wrap {
  flex: 1;
  overflow: auto;
  position: relative;
  background: #fff;
}
table {
  border-collapse: separate;
  border-spacing: 0;
  /* fixed layout only applies with a non-auto width; column widths then come from the letter row */
  table-layout: fixed;
  width: 1px;
  font-size: 13px;
}
th, td {
  border-right: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
  padding: 0 6px;
  height: 24px;
  line-height: 23px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
  background: #fff;
  font-weight: 400;
}
/* letters row */
#letterRow th {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--head-bg);
  border-bottom: 1px solid var(--head-line);
  border-right: 1px solid var(--head-line);
  color: var(--ink-soft);
  font-size: 11px;
  text-align: center;
  height: 22px;
  line-height: 21px;
  user-select: none;
}
/* header (row 1) */
#headerRow th {
  position: sticky;
  top: 22px;
  z-index: 5;
  background: #eef3ee;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}
#headerRow th:hover { background: #e2ece2; }
#headerRow th .h-inner { display: flex; align-items: center; gap: 4px; }
#headerRow th .h-label { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.sort-arrow { font-size: 10px; color: var(--green-dark); }
.funnel {
  flex: none;
  width: 18px; height: 18px;
  border: none;
  background: transparent;
  border-radius: 3px;
  cursor: pointer;
  padding: 1px;
  color: #80868b;
  display: flex; align-items: center; justify-content: center;
}
.funnel:hover { background: #d5e2d5; color: var(--ink); }
.funnel.active { color: var(--green-dark); }
.funnel svg { width: 13px; height: 13px; }
/* row-number gutter */
.rownum, #cornerCell {
  position: sticky;
  left: 0;
  z-index: 4;
  background: var(--head-bg);
  border-right: 1px solid var(--head-line);
  color: var(--ink-soft);
  font-size: 11px;
  text-align: center;
  width: 46px;
  min-width: 46px;
  max-width: 46px;
  user-select: none;
}
#cornerCell, #headerNum { z-index: 7; }
#headerRow .rownum { top: 22px; background: var(--head-bg); font-weight: 400; cursor: default; }
tbody tr:hover td { background: #f6f8f6; }
tbody tr:hover td.rownum { background: #eef0ee; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
td.price { text-align: right; color: var(--green-dark); font-variant-numeric: tabular-nums; }
td.selected {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}
tr.sel-row td.rownum { background: var(--blue-soft); color: #0b57d0; font-weight: 700; }
.domain-cell { color: #0b57d0; }
.pill {
  display: inline-block;
  font-size: 11px;
  line-height: 16px;
  padding: 0 7px;
  border-radius: 8px;
  background: #e6f4ea;
  color: var(--green-dark);
}
.pill.nofollow { background: #fce8e6; color: #c5221f; }

/* loading overlay */
.loading {
  position: sticky;
  left: 0; top: 100px;
  width: 100%;
  display: none;
  justify-content: center;
  padding: 30px 0;
  z-index: 8;
}
.loading.on { display: flex; }
.spinner {
  width: 34px; height: 34px;
  border: 4px solid #e6f4ea;
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- popover ---------- */
.popover {
  position: fixed;
  z-index: 50;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,.28);
  padding: 12px;
  min-width: 210px;
  font-size: 13px;
}
.popover h4 { font-size: 12px; color: var(--ink-soft); font-weight: 500; margin-bottom: 8px; }
.popover .sort-opt {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 6px 8px;
  border-radius: 5px;
  cursor: pointer;
  font: 13px Roboto, Arial, sans-serif;
}
.popover .sort-opt:hover { background: #f1f3f4; }
.popover hr { border: none; border-top: 1px solid var(--grid-line); margin: 8px 0; }
.popover .rng { display: flex; gap: 6px; margin-bottom: 8px; }
.popover input[type=number], .popover input[type=text] {
  width: 90px;
  padding: 5px 7px;
  border: 1px solid #c4c7c5;
  border-radius: 5px;
  font: 12.5px Roboto, Arial, sans-serif;
  outline: none;
}
.popover input:focus { border-color: var(--blue); }
.popover .pop-actions { display: flex; justify-content: flex-end; gap: 6px; margin-top: 4px; }
.popover .pop-actions button {
  border: none;
  font: 500 13px Roboto, Arial, sans-serif;
  padding: 6px 14px;
  border-radius: 100px;
  cursor: pointer;
}
.pop-apply { background: var(--green-dark); color: #fff; }
.pop-apply:hover { background: #096536; }
.pop-clear { background: transparent; color: var(--ink-soft); }
.pop-clear:hover { background: #f1f3f4; }

/* ---------- footer ---------- */
.sheet-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--head-line);
  background: var(--head-bg);
  padding: 0 10px;
  height: 36px;
  flex: none;
}
.tabbar { display: flex; align-items: center; gap: 4px; }
.tab-add {
  border: none; background: transparent;
  font-size: 18px; color: var(--ink-soft);
  width: 28px; height: 28px; border-radius: 50%;
  cursor: default;
}
.sheet-tab {
  padding: 0 18px;
  height: 36px;
  line-height: 34px;
  font-weight: 500;
  color: var(--green-dark);
  background: #fff;
  border-top: 3px solid var(--green-dark);
  border-left: 1px solid var(--grid-line);
  border-right: 1px solid var(--grid-line);
  user-select: none;
}
.pager { display: flex; align-items: center; gap: 8px; color: var(--ink-soft); font-size: 12.5px; }
.pager select {
  border: 1px solid #c4c7c5;
  background: #fff;
  border-radius: 5px;
  font: 12.5px Roboto, Arial, sans-serif;
  padding: 3px 5px;
}
.pager button {
  border: none;
  background: transparent;
  font-size: 20px;
  color: var(--ink);
  width: 28px; height: 28px;
  border-radius: 50%;
  cursor: pointer;
  line-height: 1;
}
.pager button:hover:not(:disabled) { background: #e8eaed; }
.pager button:disabled { color: #bdc1c6; cursor: default; }

@media (max-width: 720px) {
  .menubar, .avatar { display: none; }
  .toolbar input[type=text] { width: 130px; }
}