:root {
  --bg: #ffffff;
  --bg-alt: #f4f4ee;
  --bg-row: #eeeee6;
  --bg-nav: #1c3a6e;
  --bg-subnav: #2d5a9e;
  --border: #aaaaaa;
  --border-dk: #666660;
  --text: #0a0a08;
  --text-2: #3a3a32;
  --text-3: #888880;
  --link: #0000cc;
  --link-v: #551188;
  --link-h: #cc1100;
  --acc-g: #005500;
  --acc-b: #002288;
  --acc-r: #cc0000;
  --font-serif: Georgia, "Times New Roman", Times, serif;
  --font-ui: Verdana, "Lucida Sans", Arial, sans-serif;
  --font-mono: "Courier New", Courier, "Lucida Console", monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }

body {
  background: #9a9a90;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.55;
}

a { color: var(--link); text-decoration: underline; }
a:visited { color: var(--link-v); }
a:hover { color: var(--link-h); }
button { font-family: var(--font-ui); cursor: pointer; }
input { font-family: var(--font-ui); font-size: 12px; }
ul { list-style: disc; padding-left: 18px; }
table { border-spacing: 0; }

.app-shell {
  max-width: 1040px;
  margin: 0 auto;
  background: var(--bg);
  border-left: 1px solid var(--border-dk);
  border-right: 1px solid var(--border-dk);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--bg-nav);
  border-bottom: 3px solid #b88810;
}

.topbar-inner {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 18px;
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: bold;
  text-decoration: none;
}

.brand:hover { color: #ddeeff; text-decoration: none; }
.brand:visited { color: #ffffff; }

.brand-icon {
  background: #b88810;
  color: #1c3a6e;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: bold;
  padding: 2px 8px;
  border: 1px solid #9a7208;
}

.brand-demo {
  font-family: var(--font-mono);
  font-size: 9px;
  color: #99bbcc;
  border: 1px solid #5577aa;
  padding: 1px 4px;
  vertical-align: middle;
  margin-left: 2px;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 5px;
}

.gh-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #cccccc;
  border: 2px outset #aaaaaa;
  padding: 3px 9px;
  font-family: var(--font-ui);
  font-size: 11px;
  color: #111111;
  text-decoration: none;
}

.gh-link:hover { background: #bbbbbb; border-style: inset; color: #111111; text-decoration: none; }
.gh-link:visited { color: #111111; }

.main-nav {
  background: var(--bg-subnav);
  border-bottom: 2px solid var(--border-dk);
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  padding: 0 10px;
}

.nav-link {
  display: inline-block;
  padding: 5px 14px;
  color: #ccdcee;
  font-family: var(--font-ui);
  font-size: 12px;
  text-decoration: none;
  border-right: 1px solid #3d6aaa;
}

.nav-link:first-child { border-left: 1px solid #3d6aaa; }
.nav-link:hover { background: #1c4a88; color: #ffffff; text-decoration: none; }
.nav-link:visited { color: #ccdcee; }
.nav-link.active { background: var(--bg); color: var(--text); font-weight: bold; border-bottom: 2px solid var(--bg); margin-bottom: -2px; }
.nav-link.active:visited { color: var(--text); }

.main-content { flex: 1; }

.app-footer {
  background: var(--bg-nav);
  color: #99aabb;
  font-family: var(--font-ui);
  font-size: 11px;
  padding: 7px 16px;
  text-align: center;
  border-top: 2px solid var(--border-dk);
}

.app-footer strong { color: #bbd4ee; }

.not-found {
  padding: 60px 32px;
  text-align: center;
  color: var(--text-2);
  font-family: var(--font-serif);
}

.not-found-code {
  display: block;
  font-size: 64px;
  color: var(--text-3);
  margin-bottom: 12px;
}

.home-wrap { padding-bottom: 28px; }

.hero-box {
  padding: 18px 22px 14px;
  border-bottom: 2px solid var(--border-dk);
  background: var(--bg-alt);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--bg-nav);
  border-bottom: 1px solid var(--bg-nav);
  padding-bottom: 6px;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 12px;
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  border: 1px solid var(--border);
  padding: 2px 8px;
  display: inline-block;
  background: var(--bg);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-stats {
  display: inline-flex;
  flex-wrap: wrap;
  border: 1px solid var(--border);
  background: var(--bg);
}

.hero-stat {
  padding: 7px 18px;
  border-right: 1px solid var(--border);
  text-align: center;
  min-width: 80px;
}

.hero-stat:last-child { border-right: none; }

.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: bold;
  color: var(--bg-nav);
}

.stat-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 9px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-area { padding: 14px 18px 0; }

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--bg-nav);
  border-bottom: 1px solid var(--bg-nav);
  padding-bottom: 3px;
  flex: 1;
}

.btn-classic {
  background: #cccccc;
  border: 2px outset #aaaaaa;
  padding: 3px 10px;
  font-family: var(--font-ui);
  font-size: 11px;
  color: #111111;
  text-decoration: none;
  display: inline-block;
  cursor: pointer;
}

.btn-classic:hover { background: #bbbbbb; border-style: inset; color: #111111; text-decoration: none; }
.btn-classic:visited { color: #111111; }
.btn-classic:active { border-style: inset; }
.btn-classic[disabled], .btn-classic.disabled { color: #888888; cursor: not-allowed; }

.category-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.category-card {
  flex: 1 1 210px;
  min-width: 180px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  background: var(--bg);
  padding: 10px 12px;
  cursor: pointer;
}

.category-card:hover { border-color: var(--border-dk); background: var(--bg-alt); }
.category-card.active { border-color: var(--border-dk); background: var(--bg-row); }

.card-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 4px; }
.card-icon { font-size: 18px; line-height: 1; }
.card-tag { font-family: var(--font-mono); font-size: 9px; color: var(--text-3); border: 1px solid var(--border); padding: 1px 4px; text-transform: uppercase; }
.card-title { font-family: var(--font-serif); font-size: 14px; font-weight: bold; color: var(--bg-nav); margin-bottom: 4px; }
.card-desc { font-size: 11px; color: var(--text-2); line-height: 1.5; margin-bottom: 8px; }
.card-foot { display: flex; justify-content: space-between; font-family: var(--font-ui); font-size: 10px; color: var(--text-3); border-top: 1px dotted var(--border); padding-top: 4px; }

.struct-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-nav);
  color: #ffffff;
  padding: 5px 12px;
  font-family: var(--font-ui);
  font-size: 11px;
}

.close-btn {
  background: transparent;
  border: 1px solid #7788aa;
  color: #ccddee;
  padding: 1px 6px;
  font-size: 11px;
  cursor: pointer;
  font-family: var(--font-ui);
}

.close-btn:hover { background: var(--acc-r); border-color: var(--acc-r); color: #ffffff; }

.table-wrap { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
}

.data-table th {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 5px 10px;
  font-family: var(--font-ui);
  font-size: 10px;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: bold;
  color: var(--text-2);
  white-space: nowrap;
}

.data-table td {
  border: 1px solid var(--border);
  padding: 5px 10px;
  vertical-align: middle;
  font-size: 13px;
  background: var(--bg);
}

.data-table tbody tr:nth-child(even) td { background: var(--bg-row); }
.data-table tbody tr:hover td { background: #e0e0d4; cursor: pointer; }

.tr-num { font-family: var(--font-mono); font-size: 10px; color: var(--text-3); white-space: nowrap; }
.tr-name-b strong { display: block; font-size: 13px; color: var(--text); font-weight: bold; }
.tr-name-b small { font-family: var(--font-mono); font-size: 10px; color: var(--text-3); }
.tr-mono { font-family: var(--font-mono); font-size: 12px; color: var(--text-2); }
.tr-go { font-family: var(--font-serif); font-size: 14px; color: var(--text-3); }
.data-table tbody tr:hover .tr-go { color: var(--bg-nav); }

.cat-pill {
  font-family: var(--font-ui);
  font-size: 10px;
  border: 1px solid var(--border);
  padding: 1px 5px;
  background: var(--bg-alt);
  color: var(--text-2);
  white-space: nowrap;
}

.search-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-label { font-family: var(--font-ui); font-size: 11px; color: var(--text-3); }

.search-input {
  border: 1px inset var(--border);
  padding: 3px 6px;
  font-size: 12px;
  background: var(--bg);
  color: var(--text);
  width: 180px;
}

.page-wrap { padding: 14px 18px 32px; }

.breadcrumb { font-family: var(--font-ui); font-size: 11px; color: var(--text-3); margin-bottom: 14px; }
.breadcrumb a { font-size: 11px; }
.bc-sep { margin: 0 5px; color: var(--text-3); }
.bc-now { color: var(--text-2); }

.struct-head-bar {
  border-bottom: 2px solid var(--bg-nav);
  margin-bottom: 14px;
  padding-bottom: 8px;
}

.struct-issue-num { font-family: var(--font-mono); font-size: 10px; color: var(--text-3); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.struct-h1 { font-family: var(--font-serif); font-size: 28px; color: var(--bg-nav); margin-bottom: 2px; }
.struct-en { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); margin-bottom: 8px; }
.struct-description { font-size: 13px; color: var(--text-2); line-height: 1.65; max-width: 600px; margin-bottom: 10px; }
.struct-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.s-tag { font-family: var(--font-mono); font-size: 10px; border: 1px solid var(--border); padding: 2px 7px; color: var(--text-2); background: var(--bg-alt); }

.struct-body {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-start;
}

.struct-main { flex: 1 1 380px; min-width: 0; }
.struct-side { flex: 0 1 230px; min-width: 200px; display: flex; flex-direction: column; gap: 8px; }

.cx-box { border: 1px solid var(--border); margin-bottom: 12px; }

.cx-box-title {
  background: var(--bg-subnav);
  color: #ddeeff;
  padding: 4px 10px;
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cx-table { width: 100%; border-collapse: collapse; }

.cx-table th {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-family: var(--font-ui);
  font-size: 10px;
  color: var(--text-3);
  font-weight: normal;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cx-table td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: bold;
  color: var(--acc-b);
  text-align: center;
}

.viz-section { margin-bottom: 12px; }

.viz-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
  margin-bottom: 8px;
}

.viz-section-title {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-3);
}

.viz-canvas {
  border: 1px inset var(--border);
  background: #fafaf4;
  padding: 44px 20px;
  text-align: center;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.viz-ph-icon { font-size: 38px; margin-bottom: 8px; line-height: 1; }
.viz-ph-name { font-family: var(--font-serif); font-size: 17px; font-weight: bold; color: var(--text); margin-bottom: 6px; }
.viz-ph-text { font-size: 12px; color: var(--text-2); line-height: 1.6; }
.viz-ph-tag { font-family: var(--font-mono); font-size: 10px; color: var(--text-3); border: 1px solid var(--border); padding: 2px 9px; margin-top: 8px; display: inline-block; background: var(--bg-alt); }

.op-panel { border: 1px solid var(--border); background: var(--bg-alt); padding: 10px; }

.op-panel-head {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-3);
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
  margin-bottom: 8px;
}

.op-row { display: flex; gap: 4px; margin-bottom: 6px; flex-wrap: wrap; }

.op-input {
  flex: 1;
  min-width: 80px;
  border: 1px inset #999999;
  padding: 3px 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  background: #f0f0e8;
  color: var(--text-3);
}

.op-btns { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 8px; }

.op-btn {
  flex: 1;
  min-width: 70px;
  background: #cccccc;
  border: 2px outset #aaaaaa;
  padding: 3px 8px;
  font-family: var(--font-ui);
  font-size: 11px;
  color: #888880;
  cursor: not-allowed;
}

.op-log {
  border: 1px inset #999999;
  background: #ffffff;
  padding: 8px;
  min-height: 58px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.log-head { color: var(--text-3); font-size: 9px; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.log-empty { color: var(--text-3); font-style: italic; }

.side-card { border: 1px solid var(--border); background: var(--bg); }

.side-card-title {
  background: var(--bg-subnav);
  color: #ddeeff;
  padding: 4px 10px;
  font-family: var(--font-ui);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: bold;
}

.side-card-body { padding: 8px 10px; }

.sc-list { list-style: none; padding: 0; }

.sc-list li {
  font-size: 12px;
  color: var(--text-2);
  padding: 2px 0 2px 14px;
  position: relative;
  line-height: 1.5;
  border-bottom: 1px dotted var(--border);
}

.sc-list li:last-child { border-bottom: none; }
.sc-list.pros li::before { content: '+'; position: absolute; left: 0; color: var(--acc-g); font-weight: bold; font-family: var(--font-mono); }
.sc-list.cons li::before { content: '\2212'; position: absolute; left: 0; color: var(--acc-r); font-weight: bold; font-family: var(--font-mono); }
.sc-list.use li::before { content: '\00b7'; position: absolute; left: 2px; color: var(--text-3); font-family: var(--font-mono); }

.sib-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px dotted var(--border);
}

.sib-link:last-child { border-bottom: none; }
.sib-link:hover { background: var(--bg-alt); color: var(--link-h); text-decoration: underline; }
.sib-link:visited { color: var(--link-v); }
.sib-link.current { font-weight: bold; color: var(--text); background: var(--bg-row); pointer-events: none; }
.sib-link.current:visited { color: var(--text); }
.sib-num { font-family: var(--font-mono); font-size: 10px; color: var(--text-3); min-width: 26px; }

.struct-nav {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.snav-btn {
  display: inline-block;
  background: #cccccc;
  border: 2px outset #aaaaaa;
  padding: 4px 14px;
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--text);
  text-decoration: none;
}

.snav-btn:hover { background: #bbbbbb; border-style: inset; color: var(--text); text-decoration: none; }
.snav-btn:visited { color: var(--text); }

.compare-page-wrap { padding: 14px 18px 32px; }
.compare-h1 { font-family: var(--font-serif); font-size: 22px; color: var(--bg-nav); border-bottom: 1px solid var(--bg-nav); padding-bottom: 5px; margin-bottom: 6px; }
.compare-sub { font-size: 12px; color: var(--text-2); margin-bottom: 14px; }

.selector-area { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }

.selector-slot {
  flex: 1 1 250px;
  min-width: 210px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
}

.slot-lbl {
  background: var(--bg-nav);
  color: #ffffff;
  font-family: var(--font-ui);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  font-weight: bold;
}

.slot-empty {
  padding: 14px 10px;
  text-align: center;
  color: var(--text-3);
  font-family: var(--font-ui);
  font-size: 12px;
  cursor: pointer;
  font-style: italic;
}

.slot-empty:hover { background: #ebebdf; color: var(--text-2); }

.slot-filled { padding: 10px; display: flex; align-items: center; gap: 8px; }
.slot-cat-icon { font-size: 18px; }
.slot-info { flex: 1; }
.slot-info strong { display: block; font-size: 12px; color: var(--text); }
.slot-info small { font-family: var(--font-mono); font-size: 10px; color: var(--text-3); }

.slot-rm {
  background: #cccccc;
  border: 1px outset #999999;
  padding: 2px 6px;
  font-size: 10px;
  color: var(--acc-r);
  cursor: pointer;
  font-family: var(--font-ui);
}

.slot-rm:hover { background: var(--acc-r); color: #ffffff; border-style: inset; }

.slot-drop { border-top: 1px solid var(--border); max-height: 190px; overflow-y: scroll; background: var(--bg); }

.dd-grp { border-bottom: 1px solid var(--border); }
.dd-grp:last-child { border-bottom: none; }

.dd-grp-lbl {
  background: var(--bg-alt);
  font-family: var(--font-ui);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  font-weight: bold;
  color: var(--text-3);
  border-bottom: 1px solid var(--border);
}

.dd-item {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 4px 10px;
  font-size: 12px;
  font-family: var(--font-serif);
  color: var(--text-2);
  background: var(--bg);
  border: none;
  border-bottom: 1px dotted var(--border);
  cursor: pointer;
  text-align: left;
}

.dd-item:last-child { border-bottom: none; }
.dd-item:hover:not(:disabled) { background: var(--bg-row); color: var(--link-h); text-decoration: underline; }
.dd-item.selected { background: var(--bg-alt); font-weight: bold; color: var(--text); }
.dd-item.disabled { opacity: 0.35; cursor: not-allowed; }
.dd-num { font-family: var(--font-mono); font-size: 10px; min-width: 24px; color: var(--text-3); }
.dd-en { margin-left: auto; font-family: var(--font-mono); font-size: 10px; color: var(--text-3); }

.comp-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border-dk);
  margin-bottom: 14px;
  font-size: 12px;
}

.comp-table th, .comp-table td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  vertical-align: top;
}

.comp-table thead th {
  background: var(--bg-nav);
  color: #ffffff;
  font-family: var(--font-ui);
  font-size: 12px;
  text-align: left;
}

.comp-table thead th.lbl-th { background: #334455; width: 120px; }

.comp-table tr.section-tr td {
  background: var(--bg-alt);
  font-family: var(--font-ui);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-3);
  font-weight: bold;
  padding: 4px 10px;
  border-top: 2px solid var(--border);
}

.lbl-td {
  background: var(--bg-alt);
  font-family: var(--font-ui);
  font-size: 11px;
  color: var(--text-2);
  white-space: nowrap;
}

.ct-mono { font-family: var(--font-mono); font-size: 14px; font-weight: bold; color: var(--acc-b); }

.ct-item { font-size: 11px; color: var(--text-2); padding-left: 14px; position: relative; line-height: 1.5; display: block; margin-bottom: 3px; }
.ct-item.pro::before { content: '+'; position: absolute; left: 0; color: var(--acc-g); font-weight: bold; font-family: var(--font-mono); }
.ct-item.con::before { content: '\2212'; position: absolute; left: 0; color: var(--acc-r); font-weight: bold; font-family: var(--font-mono); }
.ct-item.use::before { content: '\00b7'; position: absolute; left: 2px; color: var(--text-3); font-family: var(--font-mono); }

.ct-viz-td {
  text-align: center;
  padding: 18px;
  background: var(--bg-alt);
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 11px;
  font-style: italic;
}

.ct-head-inner strong { display: block; font-family: var(--font-serif); font-size: 13px; }
.ct-head-inner small { font-family: var(--font-mono); font-size: 10px; font-weight: normal; color: #aaccee; }

.comp-hint {
  border: 1px solid var(--border);
  padding: 30px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
  background: var(--bg-alt);
  font-style: italic;
  font-family: var(--font-serif);
}

.comp-links { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }

.comp-link {
  display: inline-block;
  background: #cccccc;
  border: 2px outset #aaaaaa;
  padding: 3px 12px;
  font-family: var(--font-ui);
  font-size: 11px;
  color: var(--text);
  text-decoration: none;
}

.comp-link:hover { background: #bbbbbb; border-style: inset; color: var(--text); text-decoration: none; }
.comp-link:visited { color: var(--text); }