:root {
  --paper: #f7f3ec;
  --paper-2: #fbf9f4;
  --ink: #211d18;
  --muted: #6f665a;
  --rule: #e2dacb;
  --oxblood: #7a1f2b;
  --oxblood-2: #9a3340;
  --oxblood-tint: #f1e3e3;
  --code-bg: #fcfaf5;
  --ok: #2f6b3a;
  --warn-bg: #fbf1dd;
  --warn-ink: #87601a;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Charter, Georgia, serif;
  --mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1360px; margin: 0 auto; padding: 0 28px; }

/* ---- hero ---- */
header.hero {
  border-bottom: 1px solid var(--rule);
  padding: 52px 0 38px;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--oxblood);
  margin: 0 0 14px;
}
h1.title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(38px, 6vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
}
.tagline {
  font-family: var(--serif);
  font-size: clamp(19px, 2.4vw, 25px);
  font-style: italic;
  color: #3a342c;
  margin: 0 0 18px;
  max-width: 30ch;
}
.subtitle { font-size: 16px; color: var(--muted); max-width: 64ch; margin: 0; }
.subtitle b { color: var(--ink); font-weight: 600; }
.chips { margin-top: 22px; display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font-family: var(--mono); font-size: 12px;
  border: 1px solid var(--rule); background: var(--paper-2);
  border-radius: 999px; padding: 5px 12px; color: var(--muted);
}
.chip strong { color: var(--oxblood); font-weight: 600; }

/* ---- toolbar ---- */
.toolbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 18px 0; border-bottom: 1px solid var(--rule);
}
.toolbar label { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
select, .targets label { font-family: var(--sans); }
select {
  font-size: 14px; padding: 7px 10px; border: 1px solid var(--rule);
  border-radius: 7px; background: var(--paper-2); color: var(--ink);
}
.targets { display: flex; gap: 14px; align-items: center; }
.targets label { gap: 6px; cursor: pointer; }
.targets input { accent-color: var(--oxblood); }
.spacer { flex: 1; }
.note { font-size: 12.5px; color: var(--muted); font-family: var(--mono); }

/* ---- main layout: editor on top, harness columns below ---- */
.panel-label {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 10px;
}
.editor-panel { padding: 24px 0 4px; }
.import-panel { border: 1px solid var(--rule); border-radius: 9px; background: var(--paper-2); margin-bottom: 16px; }
.import-panel summary { cursor: pointer; padding: 11px 14px; font-size: 13px; color: var(--oxblood); font-family: var(--mono); }
.import-body { padding: 4px 14px 14px; }
.import-body label { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
#import-src { width: 100%; height: 120px; resize: vertical; font-family: var(--mono); font-size: 12px; line-height: 1.5; border: 1px solid var(--rule); border-radius: 7px; padding: 10px; background: var(--code-bg); color: var(--ink); }
.import-actions { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.import-status { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.results { padding: 18px 0 64px; }
textarea#editor {
  width: 100%; height: 300px; resize: vertical;
  font-family: var(--mono); font-size: 13px; line-height: 1.55;
  color: var(--ink); background: var(--code-bg);
  border: 1px solid var(--rule); border-radius: 10px; padding: 16px;
  tab-size: 2;
}
textarea#editor:focus { outline: 2px solid var(--oxblood); outline-offset: -1px; }

/* side-by-side harness columns (column count set inline by main.js) */
#outputs { display: grid; gap: 20px; align-items: stretch; }
@media (max-width: 1000px) { #outputs { grid-template-columns: 1fr !important; } }

/* ---- status + warnings ---- */
.status { font-size: 14px; margin: 0 0 14px; font-family: var(--mono); }
.status.ok { color: var(--ok); }
.status.err { color: var(--oxblood); }
.errors { background: var(--oxblood-tint); border: 1px solid #e3c3c5; border-radius: 9px; padding: 12px 14px; margin-bottom: 16px; }
.errors ul, .warnbox ul { margin: 6px 0 0; padding-left: 18px; }
.errors li { color: #6c1922; font-size: 13.5px; margin: 3px 0; }
.warnbox {
  background: var(--warn-bg); border: 1px solid #ecd9ab; border-radius: 9px;
  padding: 10px 14px; margin-bottom: 18px;
}
.warnbox summary { cursor: pointer; font-size: 13px; color: var(--warn-ink); font-weight: 600; }
.warnbox li { color: var(--warn-ink); font-size: 12.8px; margin: 4px 0; font-family: var(--mono); }

/* ---- portability summary ---- */
.summary { background: var(--oxblood-tint); border: 1px solid #e3c3c5; border-left: 3px solid var(--oxblood); border-radius: 9px; padding: 13px 16px; margin: 0 0 16px; }
.summary.portable { background: #e9f1ea; border-color: #c2dcc6; border-left-color: var(--ok); }
.summary-title { margin: 0; font-size: 14px; font-weight: 600; color: #5c1922; }
.summary.portable .summary-title { color: var(--ok); font-weight: 500; }
.summary ul { margin: 9px 0 0; padding-left: 18px; }
.summary li { font-size: 13px; color: #4a3034; margin: 5px 0; font-family: var(--mono); line-height: 1.45; }

/* ---- compatibility badge ---- */
.compat { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 14px; }
.compat-pill { font-family: var(--mono); font-size: 11px; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--rule); border-left-width: 3px; background: var(--paper-2); }
.compat-lossless { color: var(--ok); }
.compat-lossy { color: var(--warn-ink); }
.compat-skipped { color: var(--muted); }

/* ---- registry search / filter ---- */
.registry-controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 0 0 16px; }
#registry-search { font-family: var(--sans); font-size: 14px; padding: 7px 11px; border: 1px solid var(--rule); border-radius: 7px; background: var(--paper-2); color: var(--ink); min-width: 220px; }
.rfilter { display: flex; gap: 6px; flex-wrap: wrap; }
.rchip { font-family: var(--mono); font-size: 11px; padding: 3px 9px; border: 1px solid var(--rule); border-radius: 999px; background: var(--paper-2); color: var(--muted); cursor: pointer; }
.rchip.active { border-color: var(--oxblood); color: var(--oxblood); }
.rcard .tags { display: flex; gap: 5px; flex-wrap: wrap; }
.rcard .tag { font-family: var(--mono); font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); border: 1px solid var(--rule); border-radius: 4px; padding: 1px 5px; }

/* ---- legend ---- */
.legend { font-family: var(--mono); font-size: 11.5px; color: var(--muted); margin: 2px 0 18px; display: flex; align-items: center; gap: 9px; line-height: 1.4; }
.legend b { color: var(--ink); font-weight: 600; }
.legend .swatch { flex: none; width: 16px; height: 16px; border-radius: 3px; background: var(--oxblood-tint); box-shadow: inset 3px 0 0 var(--oxblood); }

/* ---- target sections ---- */
.target { min-width: 0; border-left: 3px solid var(--rule); padding-left: 16px; display: flex; flex-direction: column; }
.diffbadges { display: flex; gap: 7px; flex-wrap: wrap; margin: 0 0 14px; }
.diffbadges .b { font-family: var(--mono); font-size: 11px; color: #5b4a2c; background: #f3ead4; border: 1px solid #e6d6ad; border-radius: 6px; padding: 3px 9px; }
.install { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 0 0 16px; }
.install-label { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.target-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 10px; border-bottom: 1px solid var(--rule); padding-bottom: 8px; margin-bottom: 14px; }
.target-head .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.target-head h3 { font-family: var(--serif); font-size: 21px; font-weight: 600; margin: 0; }
.target-head .where { font-family: var(--mono); font-size: 11px; color: var(--muted); margin-left: auto; min-width: 0; overflow-wrap: anywhere; }
.skipped { font-family: var(--mono); font-size: 13px; color: var(--muted); font-style: italic; }

.file { border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; margin-bottom: 12px; background: var(--paper-2); display: flex; flex-direction: column; }
.file:last-child { margin-bottom: 0; flex: 1 1 auto; }
.file-head { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 8px; padding: 8px 12px; border-bottom: 1px solid var(--rule); }
.file-name { font-family: var(--mono); font-size: 12px; color: var(--ink); font-weight: 600; min-width: 0; overflow-wrap: anywhere; flex: 1 1 auto; }
.lang { font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); border: 1px solid var(--rule); border-radius: 5px; padding: 1px 6px; flex: 0 0 auto; }
.file-actions { margin-left: auto; display: flex; gap: 6px; flex: 0 0 auto; }
.btn {
  font-family: var(--sans); font-size: 12px; cursor: pointer;
  border: 1px solid var(--rule); background: var(--paper); color: var(--ink);
  border-radius: 6px; padding: 4px 10px;
}
.btn:hover { border-color: var(--oxblood); color: var(--oxblood); }
.btn.copied { color: var(--ok); border-color: var(--ok); }
pre { margin: 0; padding: 14px 0; background: var(--code-bg); flex: 1 1 auto; }
pre code { font-family: var(--mono); font-size: 12px; line-height: 1.55; color: #2b261f; }
pre code .ln { display: block; white-space: pre-wrap; overflow-wrap: anywhere; padding: 1px 14px; }
pre code .ln.hl { background: var(--oxblood-tint); box-shadow: inset 3px 0 0 var(--oxblood); }
pre code .ln.dadd { background: #e9f1ea; box-shadow: inset 3px 0 0 var(--ok); color: #1f5b2a; }
pre code .ln.ddel { background: var(--oxblood-tint); box-shadow: inset 3px 0 0 var(--oxblood); color: #7a3a40; }

/* ---- diff toggle + doctor panel ---- */
.diff-toggle { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; cursor: pointer; }
.diff-toggle input { accent-color: var(--oxblood); }
.toolbar-note { margin: 0 0 2px; }
#doctor-panel:not(:empty) { margin-top: 12px; }
.doctor { border: 1px solid var(--rule); border-left: 3px solid var(--oxblood); border-radius: 9px; padding: 12px 15px; background: var(--paper-2); font-size: 13px; }
.doctor.ok { border-left-color: var(--ok); color: var(--ok); font-family: var(--mono); }
.doctor.err { border-left-color: var(--oxblood); color: var(--oxblood); font-family: var(--mono); }
.doctor-title { margin: 0 0 8px; font-weight: 600; color: var(--ink); }
.doctor ul { margin: 0 0 10px; padding-left: 18px; }
.doctor li { font-size: 12.5px; margin: 4px 0; color: var(--muted); line-height: 1.4; }
.doctor li.warn { color: var(--warn-ink); }

/* ---- registry gallery ---- */
.registry { padding: 10px 0 56px; border-top: 1px solid var(--rule); margin-top: 36px; }
.registry-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); gap: 14px; }
.rcard { border: 1px solid var(--rule); border-radius: 10px; background: var(--paper-2); padding: 15px; display: flex; flex-direction: column; gap: 9px; }
.rcard h4 { margin: 0; font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--oxblood); }
.rcard p { margin: 0; font-size: 12.5px; color: var(--muted); line-height: 1.45; flex: 1; }
.rcard .btn { align-self: flex-start; }

footer { border-top: 1px solid var(--rule); padding: 24px 0 48px; color: var(--muted); font-size: 13px; }
footer code { font-family: var(--mono); font-size: 12px; background: var(--paper-2); border: 1px solid var(--rule); border-radius: 5px; padding: 2px 7px; color: var(--ink); }
footer a { color: var(--oxblood); text-decoration: none; }
footer a:hover { text-decoration: underline; }