/* =========================================================
   TWT Stats — ship database (dossier/ladder table)
   Implements the TWT Design System: navy surfaces, antique
   brass accent, IBM Plex Sans/Mono, 4px spacing grid,
   6px card radius / 4px badge radius, letter-graded bands.
   ========================================================= */

.twt-shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

/* --- Local theme hooks (dark = design reference, light adapts) --- */
.twt-page {
  --twt-zebra: rgba(0, 0, 0, 0.03);
  --twt-hover: rgba(184, 146, 63, 0.09);
  --twt-hairline: var(--border-primary);
  --twt-accent-rule: rgba(184, 146, 63, 0.55);
}

:root[data-theme="dark"] .twt-page {
  --twt-zebra: rgba(255, 255, 255, 0.025);
  --twt-hover: rgba(211, 169, 78, 0.07);
  --twt-accent-rule: rgba(211, 169, 78, 0.45);
}

/* --- Micro labels --- */
.twt-kicker,
.twt-breadcrumb,
.twt-provenance,
.twt-results,
.twt-source-note,
.twt-chiplabel {
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.twt-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--text-tertiary);
  margin-bottom: 20px;
}

.twt-breadcrumb a {
  color: var(--text-tertiary);
}

.twt-breadcrumb a:hover {
  color: var(--text-accent);
}

.twt-breadcrumb i {
  font-size: 0.55rem;
}

/* --- Page head --- */
.twt-page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.twt-kicker {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--text-tertiary);
  margin: 0 0 6px;
}

.twt-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin: 0;
}

.twt-title .twt-title-accent {
  color: var(--text-accent);
}

.twt-intro {
  max-width: 560px;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 8px 0 0;
}

.twt-provenance {
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.twt-provenance strong {
  color: var(--text-accent);
  font-weight: 600;
}

/* --- Summary stat cards --- */
.twt-statcards {
  display: grid;
  grid-template-columns: repeat(4, minmax(96px, 1fr));
  gap: 8px;
}

.twt-statcard {
  background: var(--bg-secondary);
  border: 1px solid var(--twt-hairline);
  border-radius: 6px;
  padding: 12px 16px;
  min-width: 104px;
}

.twt-statcard dt {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 0;
}

.twt-statcard dd {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.45rem;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  margin: 4px 0 0;
}

/* --- Filter bar --- */
.twt-filterbar {
  background: var(--bg-secondary);
  border: 1px solid var(--twt-hairline);
  border-radius: 6px;
  padding: 14px 16px;
  margin: 20px 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.twt-search {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 44px;
  padding: 0 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 6px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.twt-search:focus-within {
  border-color: var(--text-accent);
  box-shadow: 0 0 0 3px var(--border-accent);
}

.twt-search i {
  color: var(--text-accent);
  font-size: 0.85rem;
}

.twt-search input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: none;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
}

.twt-search input::placeholder {
  color: var(--text-tertiary);
}

.twt-search kbd {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: 3px;
  padding: 2px 6px;
  background: transparent;
}

.twt-chiprows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.twt-chiprow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.twt-chiplabel {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-tertiary);
  min-width: 52px;
}

.twt-chip {
  display: inline-flex;
  min-width: 30px;
  height: 26px;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  background: rgba(127, 127, 127, 0.06);
  border: 1px solid var(--border-secondary);
  color: var(--text-secondary);
  text-decoration: none;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.twt-chip:hover {
  border-color: var(--text-accent);
  color: var(--text-primary);
}

.twt-chip.is-active {
  background: rgba(211, 169, 78, 0.14);
  border-color: rgba(211, 169, 78, 0.5);
  color: var(--text-accent);
}

.twt-selects {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 8px;
}

.twt-select {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.twt-select label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.twt-select select {
  height: 30px;
  padding: 0 8px;
  border-radius: 4px;
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.twt-select select:hover {
  border-color: var(--text-accent);
  color: var(--text-primary);
}

.twt-filter-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.twt-apply {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 14px;
  border-radius: 4px;
  border: 1px solid rgba(211, 169, 78, 0.5);
  background: rgba(211, 169, 78, 0.14);
  color: var(--text-accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.twt-apply:hover {
  border-color: var(--text-accent);
}

.twt-clear {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.twt-clear:hover {
  color: var(--text-accent);
}

/* --- Results line --- */
.twt-results-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin: 16px 0 8px;
}

.twt-results {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.06em;
  margin: 0;
}

.twt-results-note {
  font-size: 0.72rem;
  color: var(--text-tertiary);
  margin: 0;
}

/* --- Table card --- */
.twt-tablecard {
  background: var(--bg-primary);
  border: 1px solid var(--twt-hairline);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.twt-tablewrap {
  overflow-x: auto;
}

.twt-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.twt-table thead th {
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  text-align: right;
  padding: 9px 12px;
  border-bottom: 1px solid var(--twt-accent-rule);
  white-space: nowrap;
}

.twt-table thead th:first-child {
  text-align: left;
}

.twt-table thead th a {
  color: inherit;
  text-decoration: none;
}

.twt-table thead th a:hover {
  color: var(--text-accent);
}

.twt-table thead th a.is-active {
  color: var(--text-accent);
}

.twt-table tbody tr {
  border-bottom: 1px solid var(--twt-zebra);
}

.twt-table tbody tr:nth-child(even) {
  background: var(--twt-zebra);
}

.twt-table tbody tr:hover {
  background: var(--twt-hover);
}

.twt-table td {
  padding: 7px 12px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: right;
  white-space: nowrap;
  vertical-align: middle;
}

.twt-table td.twt-cell-strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* Ship identity cell */
.twt-shipcell {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  text-align: left;
}

.twt-table td:first-child {
  text-align: left;
  max-width: 300px;
}

.twt-contour {
  width: 46px;
  height: 20px;
  flex: none;
  display: flex;
  align-items: center;
}

.twt-contour img {
  max-width: 100%;
  max-height: 100%;
  opacity: 0.9;
}

:root[data-theme="light"] .twt-contour img {
  filter: brightness(0);
  opacity: 0.65;
}

.twt-shipmeta {
  min-width: 0;
}

.twt-shipname {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.twt-shipname a {
  color: var(--text-primary);
  text-decoration: none;
}

.twt-shipname a:hover {
  color: var(--text-accent);
}

.twt-shipsub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-top: 1px;
}

/* Whole-row click affordance (name link stretches over the row) */
.twt-table tbody tr {
  position: relative;
}

.twt-shipname a::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
}

.twt-rowaction {
  color: var(--text-tertiary);
  font-size: 0.7rem;
}

.twt-table tbody tr:hover .twt-rowaction {
  color: var(--text-accent);
}

/* Grade tiles — colour always paired with the letter grade */
.twt-gradecell {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.twt-grade {
  display: inline-flex;
  min-width: 32px;
  height: 21px;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
}

.twt-grade.band-d  { color: var(--band-d);  background: rgba(226, 93, 93, 0.14);  border: 1px solid rgba(226, 93, 93, 0.45); }
.twt-grade.band-c  { color: var(--band-c);  background: rgba(224, 134, 60, 0.14); border: 1px solid rgba(224, 134, 60, 0.45); }
.twt-grade.band-b  { color: var(--band-b);  background: rgba(236, 211, 94, 0.14); border: 1px solid rgba(236, 211, 94, 0.45); }
.twt-grade.band-a  { color: var(--band-a);  background: rgba(111, 192, 106, 0.14); border: 1px solid rgba(111, 192, 106, 0.45); }
.twt-grade.band-s  { color: var(--band-s);  background: rgba(70, 190, 199, 0.14); border: 1px solid rgba(70, 190, 199, 0.45); }
.twt-grade.band-sp { color: var(--band-sp); background: rgba(176, 126, 232, 0.16); border: 1px solid rgba(176, 126, 232, 0.45); }

:root[data-theme="light"] .twt-grade.band-b { color: #8a7415; }
:root[data-theme="light"] .twt-grade.band-a { color: #3d7a39; }
:root[data-theme="light"] .twt-grade.band-s { color: #22757c; }
:root[data-theme="light"] .twt-grade.band-d { color: #b23434; }
:root[data-theme="light"] .twt-grade.band-c { color: #a55a1a; }
:root[data-theme="light"] .twt-grade.band-sp { color: #7a48ad; }

/* Availability / status flags */
.twt-flags {
  display: inline-flex;
  gap: 4px;
  justify-content: flex-end;
}

.twt-flag {
  display: inline-flex;
  height: 18px;
  align-items: center;
  padding: 0 7px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  background: rgba(127, 127, 127, 0.08);
  border: 1px solid var(--border-secondary);
  color: var(--text-tertiary);
}

.twt-flag--premium {
  background: rgba(211, 169, 78, 0.14);
  border-color: rgba(211, 169, 78, 0.5);
  color: var(--text-accent);
}

.twt-flag--special {
  background: rgba(70, 190, 199, 0.12);
  border-color: rgba(70, 190, 199, 0.4);
  color: var(--band-s);
}

.twt-flag--preliminary {
  background: rgba(224, 134, 60, 0.12);
  border-color: rgba(224, 134, 60, 0.4);
  color: var(--band-c);
}

:root[data-theme="light"] .twt-flag--special { color: #22757c; }
:root[data-theme="light"] .twt-flag--preliminary { color: #a55a1a; }

.twt-source-note {
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.06em;
  padding: 10px 16px;
  border-top: 1px solid var(--twt-hairline);
}

/* --- Empty state --- */
.twt-empty {
  text-align: center;
  padding: 64px 24px;
  background: var(--bg-secondary);
  border: 1px dashed var(--border-secondary);
  border-radius: 8px;
}

.twt-empty i {
  font-size: 1.4rem;
  color: var(--text-tertiary);
}

.twt-empty h2 {
  font-family: var(--font-heading);
  letter-spacing: 0.04em;
  font-size: 1.6rem;
  margin: 12px 0 4px;
}

.twt-empty p {
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

/* --- Pagination --- */
.twt-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.twt-pagination a {
  color: var(--text-secondary);
}

.twt-pagination a:hover {
  color: var(--text-accent);
}

.twt-pagination__pages {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.twt-pagination__page {
  display: inline-flex;
  min-width: 28px;
  height: 26px;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  border-radius: 4px;
  border: 1px solid transparent;
  color: var(--text-secondary);
  text-decoration: none;
}

a.twt-pagination__page:hover {
  border-color: var(--text-accent);
  color: var(--text-primary);
}

.twt-pagination__page--current {
  background: rgba(211, 169, 78, 0.14);
  border: 1px solid rgba(211, 169, 78, 0.5);
  color: var(--text-accent);
}

.twt-pagination__direction--disabled {
  color: var(--text-tertiary);
  opacity: 0.5;
}

.twt-pagination__ellipsis {
  color: var(--text-tertiary);
  padding: 0 4px;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .twt-page-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .twt-statcards {
    width: 100%;
    grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  }

  .twt-filter-actions {
    margin-left: 0;
  }
}