/* ============================================================
   EMA Design System — Advanced Data Grid Styles
   Requires tokens.css
   ============================================================ */

.ema-grid-wrap {
  display: flex;
  flex-direction: column;
  background: var(--ema-surface);
  border: 1px solid var(--ema-border);
  border-radius: var(--ema-radius-lg);
  box-shadow: var(--ema-shadow-sm);
  overflow: hidden;
  font-size: var(--ema-text-md);
}

/* ---------- Toolbar ---------- */
.ema-grid-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--ema-border);
  background: var(--ema-surface);
}
.ema-grid-toolbar__title {
  font-weight: var(--ema-font-bold);
  font-size: var(--ema-text-lg);
  margin-right: auto;
}
.ema-grid-toolbar__search {
  position: relative;
  display: flex; align-items: center; gap: 0.4rem;
  height: var(--ema-control-h-sm);
  padding: 0 0.6rem;
  border: 1px solid var(--ema-border-strong);
  border-radius: var(--ema-radius-md);
  background: var(--ema-surface);
  transition: border-color var(--ema-dur-fast), box-shadow var(--ema-dur-med), width var(--ema-dur-med) var(--ema-ease);
  width: 200px;
}
.ema-grid-toolbar__search:focus-within {
  border-color: var(--ema-primary);
  box-shadow: var(--ema-focus-ring);
  width: 260px;
}
.ema-grid-toolbar__search svg { width: 0.9rem; height: 0.9rem; color: var(--ema-text-3); flex: none; }
.ema-grid-toolbar__search input {
  border: none; outline: none; background: none;
  font: inherit; font-size: var(--ema-text-sm);
  color: var(--ema-text);
  width: 100%;
}
.ema-grid-toolbar__btn {
  display: inline-flex; align-items: center; gap: 0.35rem;
  height: var(--ema-control-h-sm);
  padding: 0 0.6rem;
  border: 1px solid var(--ema-border-strong);
  border-radius: var(--ema-radius-md);
  background: var(--ema-surface);
  font: inherit; font-size: var(--ema-text-sm); font-weight: var(--ema-font-medium);
  color: var(--ema-text-2);
  cursor: pointer;
  transition: all var(--ema-dur-fast) var(--ema-ease);
  position: relative;
}
.ema-grid-toolbar__btn:hover { border-color: var(--ema-primary); color: var(--ema-primary); background: var(--ema-primary-soft); }
.ema-grid-toolbar__btn--on { border-color: var(--ema-primary); color: var(--ema-primary); background: var(--ema-primary-soft); }
.ema-grid-toolbar__btn svg { width: 0.9rem; height: 0.9rem; }
.ema-grid-toolbar__btn .ema-badge { margin-left: 0.1rem; }

/* ---------- Scroll container ---------- */
.ema-grid-scroller {
  position: relative;
  overflow: auto;
  flex: 1;
  min-height: 0;
  overscroll-behavior: contain;
}
.ema-grid-scroller::-webkit-scrollbar { width: 10px; height: 10px; }
.ema-grid-scroller::-webkit-scrollbar-track { background: var(--ema-surface-2); }
.ema-grid-scroller::-webkit-scrollbar-thumb {
  background: var(--ema-border-strong);
  border-radius: 5px;
  border: 2px solid var(--ema-surface-2);
}
.ema-grid-scroller::-webkit-scrollbar-thumb:hover { background: var(--ema-gray-400); }

/* ---------- Table ---------- */
.ema-grid-table {
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  width: max-content;
  min-width: 100%;
}

.ema-grid-table th,
.ema-grid-table td {
  padding: 0 0.65rem;
  text-align: left;
  border-bottom: 1px solid var(--ema-border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  box-sizing: border-box;
}
.ema-grid-table td { height: 2.25rem; }
[data-density="compact"] .ema-grid-table td { height: 1.9rem; }
[data-density="medium"] .ema-grid-table td,
[data-density="comfortable"] .ema-grid-table td { height: 2.6rem; }
[data-density="large"] .ema-grid-table td { height: 3rem; }

.ema-grid-table td[data-align="right"], .ema-grid-table th[data-align="right"] .ema-grid-th__inner { text-align: right; justify-content: flex-end; }
.ema-grid-table td[data-align="center"], .ema-grid-table th[data-align="center"] .ema-grid-th__inner { text-align: center; justify-content: center; }

/* ---------- Header ---------- */
.ema-grid-table thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--ema-grid-header-bg);
  font-size: var(--ema-text-xs);
  font-weight: var(--ema-font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ema-header-text-2, var(--ema-text-2));
  height: 2.4rem;
  border-bottom: 1px solid var(--ema-border-strong);
  user-select: none;
}
.ema-grid-th__inner {
  display: flex; align-items: center; gap: 0.3rem;
  height: 100%;
  overflow: hidden;
}
.ema-grid-th__label { overflow: hidden; text-overflow: ellipsis; }
.ema-grid-th--sortable .ema-grid-th__inner { cursor: pointer; }
.ema-grid-th--sortable:hover { color: var(--ema-primary); }
.ema-grid-th__sort {
  display: inline-flex; flex: none;
  color: var(--ema-text-3);
  opacity: 0;
  transition: opacity var(--ema-dur-fast), transform var(--ema-dur-med) var(--ema-ease);
}
.ema-grid-th--sortable:hover .ema-grid-th__sort { opacity: 0.5; }
.ema-grid-th--sorted .ema-grid-th__sort { opacity: 1 !important; color: var(--ema-primary); }
.ema-grid-th--sorted-desc .ema-grid-th__sort { transform: rotate(180deg); }
.ema-grid-th__sort svg { width: 0.8rem; height: 0.8rem; }
.ema-grid-th__icon { display: inline-flex; flex: none; color: var(--ema-text-3); }
.ema-grid-th__icon svg { width: 0.85rem; height: 0.85rem; }

/* resize handle */
.ema-grid-th__resize {
  position: absolute;
  top: 0; right: -4px;
  width: 9px; height: 100%;
  cursor: col-resize;
  z-index: 4;
}
.ema-grid-th__resize::after {
  content: "";
  position: absolute;
  top: 20%; bottom: 20%;
  left: 3px;
  width: 2px;
  border-radius: 1px;
  background: transparent;
  transition: background var(--ema-dur-fast);
}
.ema-grid-th__resize:hover::after,
.ema-grid-th__resize--active::after { background: var(--ema-primary); }
.ema-grid-table thead th { position: sticky; }
.ema-grid-table thead th { overflow: visible; }

/* ---------- Filter row ---------- */
.ema-grid-table thead tr.ema-grid-filter-row th {
  top: 2.4rem;
  height: 2.2rem;
  text-transform: none;
  letter-spacing: 0;
  padding: 0 0.35rem;
  background: var(--ema-grid-header-bg);
  z-index: 3;
}
.ema-grid-filter-row input,
.ema-grid-filter-row select {
  width: 100%;
  box-sizing: border-box;
  height: 1.6rem;
  border: 1px solid var(--ema-border);
  border-radius: var(--ema-radius-sm);
  background: var(--ema-surface);
  color: var(--ema-text);
  font: inherit; font-size: var(--ema-text-xs);
  padding: 0 0.4rem;
  outline: none;
  font-weight: var(--ema-font-regular);
  transition: border-color var(--ema-dur-fast), box-shadow var(--ema-dur-fast);
}
.ema-grid-filter-row input:focus,
.ema-grid-filter-row select:focus { border-color: var(--ema-primary); box-shadow: var(--ema-focus-ring); }
.ema-grid-filter-row input::placeholder { color: var(--ema-text-3); }

/* operator button + inputs inside one filter cell */
.ema-grid-filter { display: flex; align-items: center; gap: 3px; }
.ema-grid-filter input { min-width: 0; flex: 1; }
.ema-grid-filter input[type="date"] { padding: 0 0.2rem; }
.ema-grid-filter__op {
  flex: none;
  width: 1.6rem; height: 1.6rem;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--ema-border);
  border-radius: var(--ema-radius-sm);
  background: var(--ema-surface);
  color: var(--ema-text-3);
  font-family: var(--ema-font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--ema-dur-fast) var(--ema-ease);
}
.ema-grid-filter__op:hover { border-color: var(--ema-primary); color: var(--ema-primary); background: var(--ema-primary-soft); }
.ema-grid-filter__op--on { border-color: var(--ema-primary); color: var(--ema-primary); background: var(--ema-primary-soft); }
.ema-grid-filter__static {
  flex: 1;
  font-size: var(--ema-text-xs);
  font-weight: 600;
  color: var(--ema-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ema-grid-filter__sym {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.3rem; flex: none;
  font-family: var(--ema-font-mono);
  font-size: 0.72rem; font-weight: 700;
  color: var(--ema-text-3);
}
.ema-menu-item--active { background: var(--ema-primary-soft); color: var(--ema-primary); }

/* ---------- Body rows ---------- */
.ema-grid-table tbody tr { transition: background var(--ema-dur-fast); }
.ema-grid-table tbody tr.ema-grid-row:hover { background: var(--ema-grid-row-hover); }
.ema-grid-table tbody tr.ema-grid-row--selected { background: var(--ema-grid-row-selected) !important; }
.ema-grid-wrap--striped tbody tr.ema-grid-row:nth-child(even):not(:hover):not(.ema-grid-row--selected) { background: var(--ema-grid-stripe); }
.ema-grid-row--clickable { cursor: pointer; }

/* cell focus (keyboard navigation) */
.ema-grid-table td.ema-grid-cell--focus {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--ema-primary);
  border-radius: 2px;
  background: var(--ema-primary-soft);
}

/* editing cell */
.ema-grid-table td.ema-grid-cell--editing {
  padding: 0;
  overflow: visible;
  box-shadow: inset 0 0 0 2px var(--ema-secondary);
  background: var(--ema-surface);
}
.ema-grid-cell-editor {
  width: 100%; height: 100%;
  box-sizing: border-box;
  border: none; outline: none;
  background: var(--ema-surface);
  color: var(--ema-text);
  font: inherit;
  padding: 0 0.65rem;
}
select.ema-grid-cell-editor { cursor: pointer; }

.ema-grid-cell--editable { position: relative; }
.ema-grid-cell--editable:hover::after {
  content: "";
  position: absolute;
  top: 4px; right: 4px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--ema-secondary);
  opacity: 0.7;
}
.ema-grid-cell--dirty {
  position: relative;
}
.ema-grid-cell--dirty::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  border-style: solid;
  border-width: 5px 5px 0 0;
  border-color: var(--ema-secondary) transparent transparent transparent;
}

/* checkbox column */
.ema-grid-table .ema-grid-col-check {
  width: 2.2rem; min-width: 2.2rem;
  text-align: center;
  padding: 0 0.4rem;
}
.ema-grid-table .ema-grid-col-check .ema-check { vertical-align: middle; }

/* expand column */
.ema-grid-table .ema-grid-col-expand { width: 2rem; min-width: 2rem; padding: 0 0.25rem; text-align: center; }
.ema-grid-expand-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.5rem; height: 1.5rem;
  border: none; background: none;
  border-radius: var(--ema-radius-sm);
  color: var(--ema-text-3);
  cursor: pointer;
  transition: background var(--ema-dur-fast), transform var(--ema-dur-med) var(--ema-ease);
}
.ema-grid-expand-btn:hover { background: var(--ema-surface-3); color: var(--ema-primary); }
.ema-grid-expand-btn svg { width: 0.8rem; height: 0.8rem; transition: transform var(--ema-dur-med) var(--ema-ease); }
.ema-grid-expand-btn--open svg { transform: rotate(90deg); }
.ema-grid-expand-btn--open { color: var(--ema-primary); }

/* detail row (drill-down) */
.ema-grid-detail-row td {
  background: var(--ema-surface-2);
  padding: 0;
  white-space: normal;
  height: auto;
}
.ema-grid-detail {
  padding: 0.9rem 1.1rem;
  animation: ema-fade-in var(--ema-dur-med) var(--ema-ease);
  border-left: 3px solid var(--ema-primary);
}

/* group rows */
.ema-grid-group-row td {
  background: var(--ema-surface-2);
  font-weight: var(--ema-font-semibold);
  cursor: pointer;
  height: 2.1rem;
  border-bottom: 1px solid var(--ema-border);
  white-space: nowrap;
  position: relative;
}
.ema-grid-group-row:hover td { background: var(--ema-surface-3); }
.ema-grid-group-row__inner {
  display: flex; align-items: center; gap: 0.45rem;
  position: sticky; left: 0.65rem;
  width: max-content;
  max-width: calc(100vw - 4rem);
}
.ema-grid-group-row__chev { display: inline-flex; color: var(--ema-text-3); transition: transform var(--ema-dur-med) var(--ema-ease); }
.ema-grid-group-row__chev svg { width: 0.8rem; height: 0.8rem; }
.ema-grid-group-row--open .ema-grid-group-row__chev { transform: rotate(90deg); color: var(--ema-primary); }
.ema-grid-group-row__count {
  font-size: var(--ema-text-xs);
  font-weight: var(--ema-font-semibold);
  color: var(--ema-primary);
  background: var(--ema-primary-soft);
  border-radius: var(--ema-radius-full);
  padding: 0.05rem 0.45rem;
}

/* cell content helpers */
.ema-grid-cell__icon { display: inline-flex; vertical-align: -0.15em; margin-right: 0.35rem; color: var(--ema-text-3); }
.ema-grid-cell__icon svg { width: 0.95em; height: 0.95em; }
.ema-grid-actions { display: inline-flex; gap: 0.15rem; }
.ema-grid-action-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.6rem; height: 1.6rem;
  border: none; background: none;
  border-radius: var(--ema-radius-sm);
  color: var(--ema-text-3);
  cursor: pointer;
  transition: all var(--ema-dur-fast) var(--ema-ease);
}
.ema-grid-action-btn:hover { background: var(--ema-primary-soft); color: var(--ema-primary); transform: scale(1.1); }
.ema-grid-action-btn--danger:hover { background: var(--ema-danger-soft); color: var(--ema-danger); }
.ema-grid-action-btn svg { width: 0.9rem; height: 0.9rem; }

/* ---------- Empty / loading ---------- */
.ema-grid-loading[hidden] { display: none; }
.ema-grid-loading {
  position: absolute; inset: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--ema-surface) 65%, transparent);
  backdrop-filter: blur(1px);
  display: flex; align-items: center; justify-content: center;
  animation: ema-fade-in var(--ema-dur-fast) var(--ema-ease);
}
.ema-grid-loading__box {
  display: flex; align-items: center; gap: 0.6rem;
  background: var(--ema-surface);
  border: 1px solid var(--ema-border);
  border-radius: var(--ema-radius-lg);
  box-shadow: var(--ema-shadow-lg);
  padding: 0.7rem 1.1rem;
  font-weight: var(--ema-font-medium);
  color: var(--ema-text-2);
}

/* ---------- Footer / pagination ---------- */
.ema-grid-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--ema-border);
  background: var(--ema-surface);
  font-size: var(--ema-text-sm);
  color: var(--ema-text-2);
}
.ema-grid-footer__info { margin-right: auto; white-space: nowrap; }
.ema-grid-footer__size {
  display: flex; align-items: center; gap: 0.35rem;
  white-space: nowrap;
}
.ema-grid-footer__size select {
  height: 1.7rem;
  border: 1px solid var(--ema-border-strong);
  border-radius: var(--ema-radius-sm);
  background: var(--ema-surface);
  color: var(--ema-text);
  font: inherit; font-size: var(--ema-text-sm);
  padding: 0 0.3rem;
  cursor: pointer;
  outline: none;
}
.ema-grid-footer__size select:focus { border-color: var(--ema-primary); box-shadow: var(--ema-focus-ring); }

/* ---------- Column chooser popup ---------- */
.ema-grid-cols-popup .ema-option { padding: 0.35rem 0.6rem; }

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .ema-grid-toolbar { padding: 0.5rem; }
  .ema-grid-toolbar__title { width: 100%; }
  .ema-grid-toolbar__search { width: 100%; order: 10; }
  .ema-grid-toolbar__search:focus-within { width: 100%; }
  .ema-grid-toolbar__btn span { display: none; }
  .ema-grid-footer { justify-content: center; }
  .ema-grid-footer__info { margin-right: 0; width: 100%; text-align: center; }
}