:root {
  --bg: #0b1016;
  --panel: #121a23;
  --panel-2: #18222e;
  --line: #24323f;
  --text: #d8e3ec;
  --muted: #7f93a5;
  --accent: #3fc1ff;
  --good: #3ddc84;
  --bad: #ff6b6b;
  --warn: #ffb547;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 "Segoe UI", system-ui, sans-serif;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 28px; color: var(--accent); }
h1 { margin: 0; font-size: 18px; letter-spacing: .5px; }
.brand small { color: var(--muted); }

.status { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 13px; }
.status .error { color: var(--bad); }

button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font: inherit;
}
button:hover { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: default; }

nav { display: flex; gap: 4px; padding: 0 20px; border-bottom: 1px solid var(--line); overflow-x: auto; }
nav .tab { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 12px 14px; color: var(--muted); white-space: nowrap; }
nav .tab.active { color: var(--accent); border-bottom-color: var(--accent); }

main { padding: 16px 20px; }
.panel { display: none; }
.panel.active { display: block; }
.hint { color: var(--muted); margin: 0 0 14px; }

.form { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: flex-end; margin-bottom: 14px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); min-width: 150px; }
.form label.wide { min-width: 340px; }
.form label.check { flex-direction: row; align-items: center; gap: 6px; min-width: 0; padding-bottom: 8px; }

input, select {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 9px;
  font: inherit;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }

.summary { margin-bottom: 12px; }
.summary .card {
  display: inline-block;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 0 10px 10px 0;
  vertical-align: top;
}
.card .label { color: var(--muted); font-size: 12px; }
.card .value { font-size: 20px; font-weight: 600; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; background: var(--panel); }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { background: var(--panel-2); color: var(--muted); font-weight: 600; font-size: 12px; position: sticky; top: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: var(--panel-2); }
tbody tr.clickable { cursor: pointer; }
tbody tr.selected { background: #1d2f40; }
tr.top td:first-child { border-left: 3px solid var(--good); }

.loc { font-weight: 600; }
.sub { color: var(--muted); font-size: 12px; }
.good { color: var(--good); }
.bad { color: var(--bad); }
.warn { color: var(--warn); }
.muted { color: var(--muted); }
.delta { font-size: 11px; margin-left: 4px; }

.badge { display: inline-block; padding: 1px 7px; border-radius: 10px; font-size: 11px; background: var(--panel-2); border: 1px solid var(--line); margin-right: 4px; }
.badge.bad { border-color: var(--bad); }
.badge.warn { border-color: var(--warn); }

.status-pill { display: inline-block; min-width: 72px; padding: 1px 8px; border-radius: 10px; font-size: 11px; text-align: center; }
.s1 { background: #4a1f24; color: #ff9aa2; }
.s2 { background: #4a3320; color: #ffc489; }
.s3 { background: #463f1d; color: #ffe08a; }
.s4 { background: #24323f; color: var(--text); }
.s5 { background: #1d3b2c; color: #8ff0bb; }
.s6 { background: #164030; color: #5be59d; }
.s7 { background: #0f4a33; color: #3ddc84; }

.history { margin-top: 14px; }
.history svg { display: block; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }

footer { padding: 16px 20px 24px; color: var(--muted); font-size: 12px; }
a { color: var(--accent); }

.empty { padding: 24px; color: var(--muted); text-align: center; }

@media (max-width: 600px) {
  header, main, nav, footer { padding-left: 16px; padding-right: 16px; }
  .form label, .form label.wide { min-width: 100%; }
}

h2 { font-size: 15px; margin: 18px 0 10px; color: var(--text); }

.card.highlight { border-color: var(--good); }

tr.dim td { opacity: .45; }
tr.detail > td { background: var(--bg); padding: 10px 12px 14px 28px; white-space: normal; }
table.inner { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; }
table.inner th { position: static; }
.spark { display: block; }

details.more { margin-top: 18px; }
details.more summary { cursor: pointer; color: var(--accent); margin-bottom: 10px; font-weight: 600; }

.plan {
  background: var(--panel);
  border: 1px solid var(--good);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 8px;
  overflow-x: auto;
}
.plan-head { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; }
.plan .label { color: var(--muted); font-size: 12px; }
.plan .value { font-size: 20px; font-weight: 600; }
.route { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 4px; font-size: 20px; font-weight: 600; }
.route small { display: block; font-size: 12px; font-weight: 400; color: var(--muted); }
.route .arrow { color: var(--good); }
.plan-stats { display: flex; gap: 22px; flex-wrap: wrap; }

th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
th.sorted { color: var(--accent); }

/* ---------- navigation ---------- */
a.brand { color: inherit; text-decoration: none; }
nav .tab { text-decoration: none; display: inline-block; }
.page { display: none; }
.page.active { display: block; }
.main-nav .tab { font-size: 15px; }
.sub-nav { display: flex; gap: 4px; padding: 0; margin: -16px -20px 16px; padding: 0 20px; background: var(--panel); border-bottom: 1px solid var(--line); overflow-x: auto; }
.sub-nav .tab { border-bottom: 2px solid transparent; padding: 10px 14px; color: var(--muted); white-space: nowrap; font-size: 13px; }
.sub-nav .tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- front page ---------- */
.hero {
  background: linear-gradient(135deg, #12202d, #0b1016 70%);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px 28px 22px;
  margin-bottom: 22px;
}
.hero h2 { font-size: 26px; margin: 0 0 8px; }
.hero p { color: var(--muted); max-width: 720px; margin: 0 0 20px; font-size: 15px; }
.stats { display: flex; flex-wrap: wrap; gap: 28px; }
.stats .value { font-size: 24px; font-weight: 600; color: var(--accent); }
.stats .label, .feature-live .label { color: var(--muted); font-size: 12px; }

.home-section { margin-bottom: 22px; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.section-head h2 { margin: 0; font-size: 18px; }
a.button { background: var(--accent); color: #04121c; font-weight: 600; text-decoration: none; padding: 7px 14px; border-radius: 6px; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.feature {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  color: var(--text);
  text-decoration: none;
  transition: border-color .15s, transform .15s;
}
.feature:hover { border-color: var(--accent); transform: translateY(-2px); }
.feature-icon { font-size: 24px; color: var(--accent); }
.feature h3 { margin: 8px 0 6px; font-size: 16px; }
.feature p { color: var(--muted); margin: 0 0 14px; flex: 1; }
.feature-live { border-top: 1px solid var(--line); padding-top: 10px; font-size: 13px; min-height: 20px; }

.note { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--good); border-radius: 8px; padding: 12px 16px; }
.note h3 { margin: 0 0 4px; font-size: 14px; }
.note p { margin: 0; color: var(--muted); }

@media (max-width: 600px) {
  .sub-nav { margin: -16px -16px 16px; padding: 0 16px; }
  .hero { padding: 20px 16px; }
}

/* ---------- commodity explorer ---------- */
.calc { background: var(--panel); border: 1px solid var(--accent); border-radius: 10px; padding: 14px 16px; margin-bottom: 14px; white-space: normal; }
.calc-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.calc-head h3, .explorer h3 { margin: 0; font-size: 14px; }
.calc-head label { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.calc-head input { width: 110px; }
.calc-route { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; }
.calc-route .arrow { font-size: 22px; color: var(--accent); }
.calc .label { color: var(--muted); font-size: 12px; }
.calc .value { font-size: 18px; font-weight: 600; }
.calc-stats { display: flex; flex-wrap: wrap; gap: 26px; margin-bottom: 8px; }
.calc-notes { line-height: 1.7; }
.explorer { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; white-space: normal; }
.explorer > div { min-width: 0; overflow-x: auto; }
.explorer h3 { margin-bottom: 8px; }
tr.picked td { background: #16324a; }
td.pick { color: var(--accent); width: 18px; }
@media (max-width: 1100px) { .explorer { grid-template-columns: 1fr; } }
.explorer th, .explorer td { padding: 6px 8px; }
.explorer td:nth-child(2) { white-space: normal; min-width: 130px; }

h4.leg { margin: 14px 0 8px; font-size: 13px; }
h4.leg:first-child { margin-top: 0; }
.loop-check { border: 1px solid var(--accent); border-radius: 6px; padding: 6px 10px !important; color: var(--text) !important; }

/* ---------- salvage companion ---------- */
.qty-row { display: flex; flex-wrap: wrap; gap: 12px 16px; }
.qty-row label { min-width: 140px; }
.fill-from { margin: -4px 0 14px; color: var(--muted); font-size: 12px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.chip { padding: 3px 10px; border-radius: 14px; font-size: 12px; }

.material-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 14px; }
.material-card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px; overflow-x: auto; }
.material-card h3 { margin: 0 0 2px; font-size: 15px; }
.material-card .sub { margin-bottom: 10px; }
.material-card table { width: 100%; }

.ship-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px; margin-bottom: 8px; }
.ship-card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; }
.ship-photo { display: block; width: 100%; height: 170px; object-fit: cover; background: var(--panel-2); border-bottom: 1px solid var(--line); }
.ship-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.ship-body h3 { margin: 0; font-size: 16px; }
.ship-body p { margin: 0; color: var(--muted); }
.ship-body ul { margin: 0; padding-left: 18px; color: var(--muted); }
.ship-title { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.ship-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.ship-stats .label { color: var(--muted); font-size: 11px; }
.ship-stats .value { font-weight: 600; }
.ship-stats .value.small { font-size: 12px; font-weight: 500; }
.facts li { margin-bottom: 3px; }
details.how-to { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; }
details.how-to summary { cursor: pointer; color: var(--accent); font-weight: 600; }
details.how-to .steps { margin-top: 10px; }
.tips { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; font-size: 13px; color: var(--muted); }

.guide { max-width: 980px; }
.guide h2 { font-size: 18px; margin: 28px 0 10px; scroll-margin-top: 12px; }
.guide h3 { font-size: 15px; margin: 16px 0 8px; }
.guide p, .guide li { line-height: 1.6; }
.guide-toc { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.guide-toc a { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 4px 12px; font-size: 13px; text-decoration: none; }
.guide-toc a:hover { border-color: var(--accent); }
.version-note { border-left-color: var(--warn); }
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.step-card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.step-card h3 { margin: 4px 0 6px; }
.step-card p, .step-card ul { margin: 0; color: var(--muted); }
.step-num { width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: #04121c; font-weight: 700; display: grid; place-items: center; }
ol.steps { padding-left: 22px; }
ol.steps li { margin-bottom: 6px; }
.warn-box { background: #2a2214; border: 1px solid var(--warn); border-radius: 8px; padding: 10px 14px; }
.sources { margin-top: 26px; font-size: 12px; color: var(--muted); }
kbd { background: var(--panel-2); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 0 5px; font-size: 12px; font-family: inherit; }

@media (max-width: 600px) {
  .ship-grid, .material-grid { grid-template-columns: 1fr; }
  .ship-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- cargo crates ---------- */
.crate-rows { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.crate-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.crate-row label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.crate-row label.wide { flex: 1; min-width: 240px; }
.crate-row input[data-field="qty"] { width: 110px; }
.crate-row .remove { padding: 7px 11px; }
.crate-status { flex-basis: 100%; min-height: 0; }
.crate-status:empty { display: none; }
#cr-add { border-color: var(--accent); color: var(--accent); }
.material-card h3 .badge { font-size: 10px; vertical-align: middle; }

/* crate commodity picker */
.combo { position: relative; }
.combo input { width: 100%; }
.combo-list {
  position: absolute; z-index: 20; left: 0; right: 0; top: calc(100% + 4px);
  margin: 0; padding: 4px; list-style: none;
  background: var(--panel-2); border: 1px solid var(--accent); border-radius: 8px;
  max-height: 320px; overflow-y: auto; box-shadow: 0 10px 30px rgba(0, 0, 0, .5);
}
.combo-list li { display: flex; justify-content: space-between; gap: 12px; padding: 7px 10px; border-radius: 6px; cursor: pointer; color: var(--text); font-size: 13px; }
.combo-list li .sub { white-space: nowrap; }
.combo-list li:hover, .combo-list li.active { background: #1d3448; }
.combo-list li.none { cursor: default; color: var(--muted); }
.crate-row label { color: var(--muted); }

/* one-stop result */
.card.one-stop { min-width: 300px; max-width: 520px; }
.card.one-stop .big { font-size: 24px; font-weight: 700; margin: 6px 0 2px; }
.card.one-stop .sub { margin-top: 3px; }