/* GSIDD IDD tools landscape -- prototype styling.
   Palette and type borrowed loosely from gsidd.org: navy headings, orange accent,
   Spinnaker for display type, a plain sans for everything else. */

:root {
  --navy: #1a2b6d;
  --navy-soft: #4a5788;
  --orange: #db682b;
  --orange-dark: #b5511c;
  --orange-tint: #fdf3ec;
  --ink: #23262f;
  --muted: #6b7183;
  --line: #e2e5ee;
  --line-strong: #c9cede;
  --bg: #ffffff;
  --bg-alt: #f7f8fb;
  --radius: 6px;
  --shadow: 0 6px 24px rgba(26, 43, 109, 0.13);
  --font-display: "Spinnaker", "Trebuchet MS", sans-serif;
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--orange-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.05em 0.32em;
}

.wrap { max-width: 1800px; margin: 0 auto; padding: 0 32px; }

/* ---------- header ---------- */

.site-header { border-bottom: 1px solid var(--line); background: #fff; }

.header-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding-top: 18px;
  padding-bottom: 0;
}

.brand { display: flex; flex-direction: column; align-items: flex-start; color: var(--navy); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 74px; height: 44px; }
.brand-name {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--navy);
  margin-top: -4px;
  padding-bottom: 14px;
}

.site-nav { display: flex; gap: 30px; }
.site-nav a {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--navy);
  padding: 10px 2px 16px;
  border-top: 2px solid var(--line-strong);
  margin-top: 12px;
}
.site-nav a:hover { color: var(--orange); text-decoration: none; }
.site-nav a.is-current { color: var(--orange); border-top-color: var(--orange); }

/* ---------- page head ---------- */

.page-head { padding: 44px 0 8px; max-width: 900px; }

h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 42px;
  line-height: 1.15;
  color: var(--navy);
  margin: 0 0 18px;
}

.lede { font-size: 16px; color: #3c4152; margin: 0; }
.lede strong { color: var(--navy); font-weight: 600; }

/* ---------- tabs ---------- */

.tabs {
  display: flex;
  gap: 4px;
  margin: 34px 0 0;
  border-bottom: 2px solid var(--line);
}

.tab {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--navy-soft);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  padding: 10px 18px 12px;
  cursor: pointer;
}
.tab:hover { color: var(--orange); background: var(--orange-tint); }
.tab[aria-selected="true"] { color: var(--orange); border-bottom-color: var(--orange); }
.tab .tab-count {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--muted);
  margin-left: 6px;
}

.tab-intro {
  max-width: 980px;
  color: var(--muted);
  font-size: 14px;
  margin: 16px 0 0;
}

/* ---------- toolbar ---------- */

.toolbar { margin-top: 20px; }

.toolbar-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.search-field { position: relative; flex: 1 1 260px; min-width: 220px; }
.search-icon {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; color: var(--muted); pointer-events: none;
}
#search {
  width: 100%;
  font: inherit;
  padding: 8px 10px 8px 32px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
}
#search:focus, .btn:focus-visible, .tab:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 1px;
}

.facets { display: flex; flex-wrap: wrap; gap: 8px; }
.toolbar-actions { display: flex; gap: 8px; margin-left: auto; }

.btn {
  font: inherit;
  font-size: 14px;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 8px 12px;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn:hover { border-color: var(--navy-soft); }
.btn.is-active { border-color: var(--orange); color: var(--orange-dark); background: var(--orange-tint); }

.caret { border: 4px solid transparent; border-top-color: currentColor; margin-top: 4px; }

.badge {
  background: var(--orange);
  color: #fff;
  border-radius: 9px;
  font-size: 11px;
  line-height: 1;
  padding: 3px 6px;
  min-width: 17px;
  text-align: center;
}
.badge:empty { display: none; }

.link-btn {
  font: inherit;
  font-size: 13px;
  background: none;
  border: none;
  padding: 0;
  color: var(--orange-dark);
  cursor: pointer;
  text-decoration: underline;
}

/* ---------- dropdowns ---------- */

.dropdown { position: relative; }

.dropdown-panel {
  position: absolute;
  z-index: 40;
  top: calc(100% + 6px);
  left: 0;
  min-width: 250px;
  max-width: 340px;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 10px;
}
.dropdown-panel.align-right { left: auto; right: 0; }

.dropdown-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 0 2px 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--navy);
}

.dropdown-search {
  width: 100%;
  font: inherit;
  font-size: 13px;
  padding: 5px 8px;
  margin-bottom: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}

.dropdown-list { max-height: 320px; overflow-y: auto; }

.dropdown-note {
  margin: 8px 2px 0;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
}

.opt {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 4px;
  font-size: 14px;
  cursor: pointer;
  border-radius: 4px;
}
.opt:hover { background: var(--orange-tint); }
.opt input { margin: 0; accent-color: var(--orange); flex: none; position: relative; top: 2px; }
.opt .opt-label { flex: 1; }
.opt .opt-count { color: var(--muted); font-size: 12px; }
.opt.is-locked { opacity: 0.5; cursor: not-allowed; }
.opt.is-empty { opacity: 0.42; }

/* ---------- active filter chips ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chips:empty { display: none; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  background: var(--orange-tint);
  border: 1px solid #f0d3bf;
  color: var(--orange-dark);
  border-radius: 20px;
  padding: 3px 6px 3px 10px;
}
.chip b { font-weight: 600; color: var(--navy); }
.chip button {
  border: none; background: none; cursor: pointer; color: inherit;
  font-size: 15px; line-height: 1; padding: 0 3px;
}

/* ---------- result bar ---------- */

.result-bar {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 16px 2px 8px;
  font-size: 13.5px;
  color: var(--muted);
}
.result-bar strong { color: var(--navy); font-weight: 600; }

/* ---------- table ---------- */

.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: auto;
  max-height: 74vh;
}

table { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 13.5px; }

thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--navy);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 13px;
  letter-spacing: 0.02em;
  text-align: left;
  white-space: nowrap;
  padding: 0;
  border-bottom: 1px solid var(--navy);
}

thead th button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
  padding: 11px 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
thead th button:hover { background: rgba(255, 255, 255, 0.12); }
thead th .sort-arrow { opacity: 0.35; font-size: 10px; }
thead th[aria-sort] .sort-arrow { opacity: 1; color: #ffbf8f; }

/* column reordering: headers are draggable, and show where a drop would land */
thead th[draggable='true'] button { cursor: grab; }
thead th.is-dragging { opacity: 0.45; }
thead th.drop-before::before, thead th.drop-after::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--orange);
}
thead th.drop-before::before { left: 0; }
thead th.drop-after::after { right: 0; }

tbody td {
  padding: 10px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
tbody tr:hover td { background: var(--orange-tint); }
tbody tr { cursor: pointer; }
tbody tr:last-child td { border-bottom: none; }

/* sticky first column so the name stays put while scrolling wide tables */
th.col-sticky, td.col-sticky {
  position: sticky;
  left: 0;
  z-index: 2;
  background: #fff;
  border-right: 1px solid var(--line);
}
thead th.col-sticky { z-index: 4; background: var(--navy); }
tbody tr:hover td.col-sticky { background: var(--orange-tint); }
tbody tr:nth-child(even) td { background: #fcfcfd; }
tbody tr:nth-child(even) td.col-sticky { background: #fcfcfd; }
tbody tr:nth-child(even):hover td, tbody tr:nth-child(even):hover td.col-sticky { background: var(--orange-tint); }

/* Widths are floors and preferences rather than fixed sizes: the browser hands
   out what is left over, so a table fits the page where it can. Prose columns
   get a floor high enough to stay readable; short-value columns wrap at their
   own spaces (`R / C++`) instead of stretching to their longest value. */
td.cell-name { font-weight: 600; color: var(--navy); min-width: 130px; width: 170px; }
td.cell-wide { min-width: 200px; }
td.cell-medium { min-width: 150px; }
td.cell-tight { width: 1px; min-width: 70px; }
td a { text-decoration: underline; text-decoration-color: #e6bda3; }

mark { background: #ffe6b8; color: inherit; padding: 0 1px; }

.tag {
  display: inline-block;
  font-size: 11.5px;
  line-height: 1.5;
  padding: 1px 8px;
  border-radius: 12px;
  background: #eef0f7;
  color: var(--navy);
  white-space: nowrap;
}
.tag-model { background: #e6ecfb; }
.tag-utility { background: #eaf3ea; color: #2c5d33; }
.tag-ai { background: #f6ecfb; color: #5a2c6d; }
.tag-active { background: #e6f2e8; color: #2c5d33; }
.tag-caveat { background: #fdf0dd; color: #8a5a12; }
.tag-inactive { background: #f2e6e6; color: #8a2f2f; }
/* Usage runs blue -> teal -> green as the evidence thins. */
.tag-usage-established { background: #bed6f4; color: #163a68; }
.tag-usage-emerging { background: #cbe8e4; color: #14544d; }
.tag-usage-minimal { background: #e4f1dc; color: #43642c; }
.tag-note { display: block; margin-top: 4px; color: var(--muted); }

.empty { padding: 40px; text-align: center; color: var(--muted); }

.source-note { font-size: 12.5px; color: var(--muted); margin: 12px 2px 60px; }

/* ---------- detail drawer ---------- */

.drawer-scrim {
  position: fixed;
  inset: 0;
  background: rgba(26, 43, 109, 0.28);
  z-index: 60;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(620px, 94vw);
  background: #fff;
  z-index: 70;
  box-shadow: -8px 0 30px rgba(26, 43, 109, 0.2);
  display: flex;
  flex-direction: column;
}

.drawer[hidden], .drawer-scrim[hidden] { display: none; }

.drawer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px 16px;
  border-bottom: 1px solid var(--line);
}
.drawer-head h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 26px;
  color: var(--navy);
  margin: 0;
}

.icon-btn {
  font-size: 26px;
  line-height: 1;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0 4px;
}
.icon-btn:hover { color: var(--orange); }

.drawer-body { overflow-y: auto; padding: 6px 24px 40px; }

.field { padding: 13px 0; border-bottom: 1px solid var(--line); }
.field:last-child { border-bottom: none; }
.field-label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-bottom: 3px;
}
.field-value { font-size: 14.5px; }

.detail-block { margin-top: 22px; padding-top: 16px; border-top: 2px solid var(--line); }
.detail-block h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 18px;
  color: var(--navy);
  margin: 0 0 8px;
}
.detail-block p { font-size: 14px; margin: 0 0 12px; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  padding: 24px 0;
  font-size: 13px;
  color: var(--muted);
}
.site-footer p { margin: 0; }

/* ---------- responsive ---------- */

/* a laptop screen: give up a little prose width rather than scroll sideways */
@media (max-width: 1400px) {
  td.cell-wide { min-width: 180px; }
}

@media (max-width: 900px) {
  .wrap { padding: 0 18px; }
  h1 { font-size: 32px; }
  .header-inner { flex-wrap: wrap; align-items: center; gap: 12px; }
  .site-nav { gap: 18px; }
  .site-nav a { font-size: 14px; }
  .toolbar-actions { margin-left: 0; }
  .table-wrap { max-height: none; }
  th.col-sticky, td.col-sticky { position: static; }
  /* let the tab strip scroll rather than widening the whole page */
  .tabs { overflow-x: auto; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { font-size: 15px; padding: 10px 12px 12px; white-space: nowrap; }
  td.cell-name { min-width: 160px; }
  td.cell-wide { min-width: 240px; }
}