@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Sans+Condensed:wght@600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* --panel, --ink, --accent, --warn share their names with sd-tools.css
     tokens of the same name — deleted here (not aliased) so the shared
     token's value cascades through untouched; a var(--panel): var(--panel)
     self-reference would be a cycle and compute to nothing. */
  --bg: var(--bone);
  --panel-raised: var(--bone-deep);
  --line: var(--bone-line);
  --line-strong: var(--ink-mute);
  --muted: var(--ink-mute);
  --accent-strong: var(--accent-deep);
  --accent-soft: var(--bone-deep);
  --warn-soft: var(--bone-deep);
  --danger: var(--bad);
  --danger-soft: var(--bone-deep);
  --radius: 6px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: "IBM Plex Mono", monospace; }
.wrap { width: 100%; max-width: 900px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); }

/* ---- Masthead ------------------------------------------------------------ */
.masthead { background: var(--panel); border-bottom: 3px solid var(--accent); padding: 32px 0 26px; }
.mark {
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
  letter-spacing: .2em;
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
}
.masthead h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1.15;
  margin: 12px 0 8px;
  font-weight: 700;
  letter-spacing: -.01em;
}
.lede { color: var(--muted); max-width: 68ch; margin: 0 0 6px; font-size: 14.5px; }
.lede.small { font-size: 12.5px; }

/* ---- Form / controls ------------------------------------------------------- */
.form-section { padding: 24px 0; }
.form-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.ctl-label {
  font-size: 11.5px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--muted);
  display: block; margin-bottom: 8px;
}
.profile-row { margin-bottom: 16px; }
.profile-toggle { display: flex; flex-wrap: wrap; gap: 8px; }
.radio-pill {
  display: flex; align-items: center; gap: 6px;
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 7px 14px; font-size: 13px; color: var(--ink); cursor: pointer;
  background: var(--panel-raised);
}
.radio-pill input { accent-color: var(--accent); }

.hint { font-size: 12px; color: var(--muted); margin: 0 0 16px; }

.sliders { display: flex; flex-direction: column; gap: 14px; }
.slider-field { display: flex; flex-direction: column; gap: 6px; }
.slider-top { display: flex; justify-content: space-between; align-items: baseline; font-size: 13.5px; }
.slider-top label { color: var(--ink); font-weight: 500; }
.slider-val {
  font-family: "IBM Plex Mono", monospace; color: var(--accent); font-weight: 600; min-width: 1.4em; text-align: right;
}
input[type="range"] {
  width: 100%; accent-color: var(--accent); height: 22px; cursor: pointer;
}
.slider-field.hidden { display: none; }

.actions { margin-top: 20px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
button {
  font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  border-radius: var(--radius); padding: 10px 18px; border: 1px solid transparent;
}
.primary { background: var(--accent); color: var(--bone); }
.primary:hover { background: var(--accent-strong); }
.ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.ghost:hover { border-color: var(--accent); color: var(--accent); }
.copy-note { font-size: 12px; color: var(--muted); }

/* ---- Results --------------------------------------------------------------- */
.results-wrap { padding: 6px 0 60px; }
.status-line { color: var(--muted); font-size: 13.5px; margin: 18px 0; }
.status-line.error {
  background: var(--danger-soft); color: var(--danger);
  border: 1px solid var(--danger); border-radius: var(--radius); padding: 12px 14px;
}
.status-line.warn {
  background: var(--warn-soft); color: var(--warn);
  border: 1px solid var(--warn); border-radius: var(--radius); padding: 10px 14px; font-size: 13px;
}
.data-vintage { font-size: 12.5px; color: var(--muted); margin: 4px 0 8px; }
.tie-note { font-size: 12px; color: var(--muted); margin: 0 0 16px; }

.rank-list { display: flex; flex-direction: column; gap: 8px; }
.rank-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.rank-card summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 14px;
  padding: 12px 14px;
}
.rank-card summary::-webkit-details-marker { display: none; }
.rank-num {
  font-family: "IBM Plex Mono", monospace; color: var(--accent); font-weight: 600; min-width: 2.4em;
}
.rank-state { font-weight: 600; font-size: 15px; flex: 1; }
.rank-composite { font-family: "IBM Plex Mono", monospace; color: var(--accent-strong); font-weight: 600; }
.rank-detail { padding: 4px 16px 14px; border-top: 1px solid var(--line); }

.factor-row { padding: 10px 0; border-bottom: 1px solid var(--line); }
.factor-row:last-child { border-bottom: none; }
.factor-top { display: flex; justify-content: space-between; align-items: baseline; font-size: 13.5px; }
.factor-label { color: var(--muted); text-transform: uppercase; letter-spacing: .03em; font-size: 11.5px; font-weight: 600; }
.factor-score { font-family: "IBM Plex Mono", monospace; color: var(--ink); font-weight: 600; }
.factor-note { margin: 6px 0 0; font-size: 13px; color: var(--ink); }
.tag {
  display: inline-block; margin-top: 6px;
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--muted); background: var(--panel-raised); border: 1px solid var(--line); border-radius: 999px;
  padding: 2px 8px;
}

.empty-note { color: var(--muted); font-size: 13.5px; padding: 20px 0; }

/* ---- Methodology page ------------------------------------------------------- */
.methodology { padding: 30px 0 60px; }
.methodology h2 { font-size: 18px; margin: 30px 0 10px; color: var(--accent-strong); }
.methodology h3 { font-size: 14.5px; margin: 20px 0 6px; }
.methodology p { font-size: 14px; color: var(--ink); max-width: 74ch; }
.methodology code {
  font-family: "IBM Plex Mono", monospace; background: var(--panel-raised);
  border: 1px solid var(--line); border-radius: 4px; padding: 1px 6px;
  font-size: 0.92em; color: var(--accent-strong); white-space: normal;
}
.methodology .formula {
  font-family: "IBM Plex Mono", monospace; background: var(--panel-raised);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; display: block; margin: 10px 0;
  font-size: 13.5px; color: var(--accent-strong); overflow-x: auto;
}
.methodology .formula code { background: none; border: none; padding: 0; }
.methodology table { border-collapse: collapse; width: 100%; margin: 12px 0 20px; font-size: 13px; }
.methodology th, .methodology td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.methodology th { background: var(--panel-raised); color: var(--muted); text-transform: uppercase; font-size: 11px; letter-spacing: .03em; }
.methodology .back { display: inline-block; margin-bottom: 14px; font-size: 13px; }

/* ---- Footer ------------------------------------------------------------------ */
.foot { border-top: 1px solid var(--line); padding: 22px 0 40px; }
.foot p { color: var(--muted); font-size: 12.5px; max-width: 72ch; margin: 0 0 10px; line-height: 1.6; }

@media (max-width: 560px) {
  .rank-card summary { flex-wrap: wrap; }
  .methodology table { display: block; overflow-x: auto; }
}