:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #16181d;
  --muted: #6b7280;
  --line: #e3e6ea;
  --accent: #3b5bdb;
  --accent-soft: #eef1fd;
  --good: #1f7a4d;
  --warn: #a15c00;
  --new: #1f7a4d;
  --c1: #8a8f98;
  --c2: #2f855a;
  --c3: #2b6cb0;
  --c4: #805ad5;
  --c5: #b7791f;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14161a;
    --panel: #1c1f25;
    --ink: #e7e9ee;
    --muted: #9aa1ad;
    --line: #2b2f37;
    --accent: #7f9cf5;
    --accent-soft: #232a3d;
    --good: #63d29a;
    --warn: #e0b263;
    --new: #63d29a;
    --c1: #8a8f98;
    --c2: #68d391;
    --c3: #7cc0f5;
    --c4: #b794f4;
    --c5: #ecc94b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 1rem 3rem;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

header, main, footer { max-width: 980px; margin: 0 auto; }

header { padding: 2rem 0 1rem; }
h1 { margin: 0; font-size: 1.5rem; letter-spacing: -0.01em; }
.set-badge {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  background: var(--accent-soft); color: var(--accent);
  padding: 0.2em 0.55em; border-radius: 999px; vertical-align: 0.3em;
}
.sub { margin: 0.4rem 0 0; color: var(--muted); }
.datenote { margin: 0.35rem 0 0; color: var(--muted); font-size: 0.78rem; }
.rewards { margin: 0.5rem 0 0; color: var(--muted); font-size: 0.85rem; }
.rewards b { color: var(--ink); }

.about {
  max-width: 980px; margin: 0 auto 1rem; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.about summary {
  padding: 0.8rem 1.25rem; cursor: pointer; font-weight: 600; font-size: 0.9rem;
}
.about summary:hover { color: var(--accent); }
.about > div { padding: 0 1.25rem 0.5rem; }
.about p { margin: 0 0 0.8rem; color: var(--muted); font-size: 0.88rem; }
.about b { color: var(--ink); }

.ladder {
  border-collapse: collapse; width: 100%;
  margin: 0 0 1.1rem; font-size: 0.84rem;
}
.ladder th, .ladder td {
  text-align: left; padding: 0.32rem 0.7rem 0.32rem 0;
  border-bottom: 1px solid var(--line); color: var(--muted);
}
.ladder th { color: var(--ink); font-weight: 600; }
.ladder td:first-child {
  width: 4.5rem; color: var(--ink); font-variant-numeric: tabular-nums;
}
/* The three rungs the tool actually aims at. */
.ladder tr.key td { color: var(--ink); }
.ladder tr.key td:first-child { font-weight: 700; }

/* ---------- controls ---------- */

#controls {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.tabs { display: flex; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tab {
  flex: 0 0 auto; padding: 0.8rem 1.1rem; border: 0; background: none;
  color: var(--muted); font: inherit; font-weight: 500; cursor: pointer;
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

.fields {
  display: grid; gap: 1rem 1.25rem; padding: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }
.field.wide { grid-column: 1 / -1; }
.field[hidden] { display: none; }
.field > span { font-weight: 600; font-size: 0.85rem; }
.field small { color: var(--muted); font-size: 0.75rem; }
.field small:empty { display: none; }
.field.checkbox {
  flex-direction: row; align-items: center; gap: 0.5rem; align-self: end;
}
.field.checkbox span { font-weight: 400; font-size: 0.85rem; }

input[type="number"], select {
  font: inherit; padding: 0.45rem 0.55rem; border-radius: 7px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink);
  min-width: 0; width: 100%;
}
input:focus-visible, select:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}

.chipbox { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; }
.chips { display: contents; }
.chip {
  display: inline-flex; align-items: center; gap: 0.35rem;
  background: var(--accent-soft); color: var(--accent);
  border-radius: 999px; padding: 0.25rem 0.35rem 0.25rem 0.7rem;
  font-size: 0.85rem; font-weight: 500;
}
.chip button {
  border: 0; background: none; color: inherit; cursor: pointer;
  font-size: 1rem; line-height: 1; padding: 0 0.2rem; opacity: 0.7;
}
.chip button:hover { opacity: 1; }
#emblemPick { width: auto; flex: 1 1 12rem; }

.actions {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0 1.25rem 1.25rem;
}
button.primary {
  font: inherit; font-weight: 600; padding: 0.55rem 1.4rem; border: 0;
  border-radius: 7px; background: var(--accent); color: #fff; cursor: pointer;
}
button.primary:disabled { opacity: 0.55; cursor: default; }
button.ghost {
  font: inherit; padding: 0.5rem 0.9rem; border: 1px solid var(--line);
  border-radius: 7px; background: none; color: var(--ink); cursor: pointer;
}
.status { color: var(--muted); font-size: 0.85rem; font-variant-numeric: tabular-nums; }
.status.err { color: #c53030; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .status.err { color: #fc8181; }
}

/* ---------- results ---------- */

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-bottom: 1rem;
}
.card h2 {
  margin: 0 0 0.15rem; font-size: 1.05rem;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.6rem;
}
.card h2 .count { color: var(--accent); }
.meta { color: var(--muted); font-size: 0.85rem; margin: 0 0 0.9rem; }
.meta b { color: var(--ink); font-weight: 600; }

.units { display: grid; gap: 0.3rem; margin-bottom: 0.9rem; }
.unit {
  display: grid; grid-template-columns: 2.1rem 1fr; gap: 0.65rem;
  align-items: baseline; padding: 0.3rem 0.45rem; border-radius: 6px;
}
.unit:nth-child(odd) { background: color-mix(in srgb, var(--line) 30%, transparent); }
.unit.is-new { box-shadow: inset 2px 0 0 var(--new); }
.cost { font-weight: 700; font-size: 0.85rem; text-align: right; }
.cost-1 { color: var(--c1); } .cost-2 { color: var(--c2); }
.cost-3 { color: var(--c3); } .cost-4 { color: var(--c4); }
.cost-5 { color: var(--c5); }
.uname { font-weight: 600; }
.utraits { color: var(--muted); font-size: 0.87rem; }
.tag {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em;
  border-radius: 4px; padding: 0.1em 0.4em; margin-left: 0.35rem;
  border: 1px solid var(--line); color: var(--muted);
}
.tag.emblem { color: var(--accent); border-color: var(--accent); }
.tag.slots { color: var(--warn); border-color: var(--warn); }
.tag.new { color: var(--new); border-color: var(--new); }

.traitlist { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.trait {
  font-size: 0.8rem; border: 1px solid var(--line); border-radius: 999px;
  padding: 0.15rem 0.6rem; background: var(--bg);
}
.trait .n { color: var(--muted); }
.sold { color: var(--warn); font-size: 0.85rem; margin: 0.2rem 0 0.7rem; }

table { border-collapse: collapse; width: 100%; font-size: 0.88rem; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--line); }
th { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.best td { font-weight: 600; }
.picktable tbody tr { cursor: pointer; }
.picktable tbody tr:hover td {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.picktable tbody tr.is-selected td {
  background: var(--accent-soft);
  box-shadow: inset 0 1px 0 var(--accent), inset 0 -1px 0 var(--accent);
}
.picktable tbody tr.is-selected td:first-child {
  box-shadow: inset 2px 0 0 var(--accent), inset 0 1px 0 var(--accent),
              inset 0 -1px 0 var(--accent);
}
.picktable tbody tr:focus-visible {
  outline: 2px solid var(--accent); outline-offset: -2px;
}
.gain-pos { color: var(--good); font-weight: 600; }
.gain-zero { color: var(--muted); }
.tablewrap { overflow-x: auto; }

.whynot h2 { margin: 0 0 0.6rem; }
.whynot p { margin: 0 0 0.7rem; color: var(--muted); font-size: 0.88rem; }
.whynot p:last-child { margin-bottom: 0; }
.whynot .advice { color: var(--ink); }

.uswaps { color: var(--muted); font-size: 0.78rem; font-style: italic;
          margin-top: 0.15rem; }

.teamcode {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
  margin-top: 0.9rem; padding-top: 0.8rem; border-top: 1px solid var(--line);
}
.teamcode button { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.teamcode code {
  font-size: 0.76rem; color: var(--muted); word-break: break-all;
  user-select: all;
}
.teamcode small { flex: 1 1 100%; color: var(--muted); font-size: 0.75rem; }

.empty { color: var(--muted); padding: 2rem 0; text-align: center; }
footer { color: var(--muted); font-size: 0.78rem; padding-top: 1rem; }
footer p { margin: 0 0 0.5rem; }
/* The one line in the footer a reader might actually want. */
footer .contact { color: var(--ink); font-size: 0.85rem; margin-bottom: 0.9rem; }
footer a { color: var(--accent); }

@media (max-width: 560px) {
  body { padding: 0 0.75rem 2rem; }
  header { padding: 1.25rem 0 0.75rem; }
  h1 { font-size: 1.25rem; }
  /* One column, so a label and its control never get squeezed side by side. */
  .fields { grid-template-columns: 1fr; gap: 0.9rem; padding: 1rem; }
  .actions { padding: 0 1rem 1rem; }
  .tab { padding: 0.7rem 0.8rem; font-size: 0.9rem; }
  .card { padding: 0.9rem 1rem; }
  .unit { grid-template-columns: 1.9rem 1fr; gap: 0.5rem; }
  .utraits { font-size: 0.8rem; }
  /* Emblem tags wrap under the name instead of pushing the row wide. */
  .tag { margin-left: 0; margin-right: 0.35rem; }
  #emblemPick { flex: 1 1 100%; }
}