:root {
  --bg: #eef1f2; --panel: #ffffff; --panel2: #f6f8f9; --ink: #13232b; --muted: #55666e; --line: #d3dbde;
  --sea: #0e6a74; --sea-ink: #ffffff; --sea-soft: #dcecee;
  --amber: #a86a0a; --amber-soft: #f6ead2; --storm: #8a3b3b; --storm-soft: #f4e1e1; --ok: #2f7a4d; --ok-soft: #dff0e5;
  --b0: #3f8f7a; --b1: #8fb8a0; --b2: #d9a43a; --b3: #c8662f; --b4: #8a3b4f;
  --c-market: #8a979d; --c-mix: #c8662f; --c-guard: #0e6a74;
  --shadow: 0 1px 2px rgba(19,35,43,.06), 0 6px 20px rgba(19,35,43,.06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1a20; --panel: #16262e; --panel2: #1b2f38; --ink: #e6eef0; --muted: #9db0b7; --line: #29404a;
    --sea: #4fb8c4; --sea-ink: #0b1a1f; --sea-soft: #123840;
    --amber: #e0a93f; --amber-soft: #3a2d12; --storm: #e08a8a; --storm-soft: #3a1f1f; --ok: #6cc590; --ok-soft: #173325;
    --b0: #4ca58e; --b1: #78a58e; --b2: #d9a43a; --b3: #d9733a; --b4: #b55a72;
    --c-market: #8fa0a7; --c-mix: #e08a4a; --c-guard: #4fb8c4;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1a20; --panel: #16262e; --panel2: #1b2f38; --ink: #e6eef0; --muted: #9db0b7; --line: #29404a;
  --sea: #4fb8c4; --sea-ink: #0b1a1f; --sea-soft: #123840;
  --amber: #e0a93f; --amber-soft: #3a2d12; --storm: #e08a8a; --storm-soft: #3a1f1f; --ok: #6cc590; --ok-soft: #173325;
  --b0: #4ca58e; --b1: #78a58e; --b2: #d9a43a; --b3: #d9733a; --b4: #b55a72;
  --c-market: #8fa0a7; --c-mix: #e08a4a; --c-guard: #4fb8c4; --shadow: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
.serif, h1, h2, .big { font-family: Charter, "Iowan Old Style", Georgia, serif; }
h1 { font-size: clamp(28px, 5vw, 42px); line-height: 1.12; margin: 0 0 12px; letter-spacing: -0.4px; text-wrap: balance; }
h2 { font-size: clamp(22px, 3.4vw, 28px); line-height: 1.2; margin: 0 0 6px; letter-spacing: -0.2px; text-wrap: balance; }
h3 { font-size: 16px; margin: 0 0 6px; }
p { margin: 0 0 12px; max-width: 72ch; }
a { color: var(--sea); }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }
:focus-visible { outline: 2px solid var(--sea); outline-offset: 2px; border-radius: 3px; }

/* ---- Header ---- */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 14px; padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; }
.brand { font-family: Charter, Georgia, serif; font-size: 22px; font-weight: 700; letter-spacing: -.3px; text-decoration: none; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.brand svg { width: 22px; height: 22px; color: var(--sea); }
.today { font-size: 13px; color: var(--muted); display: flex; gap: 12px; flex-wrap: wrap; }
.today b { color: var(--ink); font-weight: 600; }
.up { color: var(--ok); } .down { color: var(--storm); }
.spacer { flex: 1; }
.layers { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--panel); }
.layers button { border: 0; background: transparent; color: var(--muted); padding: 5px 14px; font: inherit; font-size: 13px; cursor: pointer; }
.layers button[aria-pressed="true"] { background: var(--sea); color: var(--sea-ink); }
.family { font-size: 13px; }

/* ---- Stepper ---- */
.stepper { display: flex; gap: 6px; padding: 14px 0 4px; flex-wrap: wrap; }
.stepper button { flex: 1 1 120px; text-align: left; border: 1px solid var(--line); background: var(--panel); border-radius: 6px; padding: 8px 12px; font: inherit; cursor: pointer; color: var(--muted); }
.stepper button b { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .8px; }
.stepper button span { font-size: 14px; }
.stepper button.done { color: var(--ink); border-color: var(--sea); }
.stepper button.done b { color: var(--sea); }
.stepper button.current { background: var(--sea); color: var(--sea-ink); border-color: var(--sea); }
.stepper button.current b { color: inherit; opacity: .85; }
.stepper button:disabled { opacity: .5; cursor: not-allowed; }

/* ---- Cards and layout ---- */
main { padding: 18px 0 70px; }
.screen { animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .screen { animation: none; } html { scroll-behavior: auto; } }
.lede { font-size: 18px; color: var(--muted); max-width: 62ch; margin-bottom: 18px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 18px 20px; margin-bottom: 14px; box-shadow: var(--shadow); }
.card h3 { margin-bottom: 4px; }
.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.eyebrow { font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--sea); font-weight: 700; margin-bottom: 4px; }
.why-line { font-size: 14px; color: var(--muted); margin: 2px 0 10px; }
.why-line::before { content: "Why we ask: "; font-weight: 600; }
.note { background: var(--amber-soft); color: var(--ink); border-left: 3px solid var(--amber); padding: 10px 14px; border-radius: 4px; font-size: 14px; margin: 12px 0; }
.note.err { background: var(--storm-soft); border-left-color: var(--storm); }
.note.ok { background: var(--ok-soft); border-left-color: var(--ok); }
.tag { display: inline-block; font-size: 11px; letter-spacing: .8px; text-transform: uppercase; font-weight: 700; padding: 2px 8px; border-radius: 3px; vertical-align: middle; }
.tag.measured { background: var(--ok-soft); color: var(--ok); }
.tag.analogy, .tag.experimental { background: var(--amber-soft); color: var(--amber); }
.tag.failed { background: var(--storm-soft); color: var(--storm); }
.ev { display: inline-block; font-size: 12px; color: var(--muted); border: 1px dashed var(--line); border-radius: 4px; padding: 2px 8px; margin-top: 4px; }

/* ---- Layers ---- */
.l-why, .l-math { display: none; }
body[data-layer="why"] .l-why, body[data-layer="math"] .l-why, body[data-layer="math"] .l-math { display: block; }
body[data-layer="why"] span.l-why, body[data-layer="math"] span.l-why, body[data-layer="math"] span.l-math { display: inline; }
.l-why.box, .l-math.box { border-top: 1px dashed var(--line); margin-top: 12px; padding-top: 12px; font-size: 14px; }
.l-math.box { color: var(--muted); }
code, .mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 13px; background: var(--panel2); padding: 1px 5px; border-radius: 3px; }

/* ---- Forms ---- */
label.q { display: block; font-weight: 600; margin: 14px 0 4px; }
input[type="number"], input[type="text"], select { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--ink); width: 100%; max-width: 280px; }
input[type="range"] { width: 100%; max-width: 420px; accent-color: var(--sea); }
.opts { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin-top: 8px; }
.opt { border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 12px 14px; cursor: pointer; text-align: left; font: inherit; color: var(--ink); }
.opt b { display: block; font-size: 17px; font-family: Charter, Georgia, serif; }
.opt span { font-size: 13px; color: var(--muted); }
.opt[aria-pressed="true"] { border-color: var(--sea); box-shadow: inset 0 0 0 1px var(--sea); background: var(--sea-soft); }
.btn { font: inherit; font-weight: 600; border: 1px solid var(--sea); background: var(--sea); color: var(--sea-ink); padding: 10px 20px; border-radius: 6px; cursor: pointer; text-decoration: none; display: inline-block; }
.btn:hover { filter: brightness(1.06); }
.btn.ghost { background: transparent; color: var(--sea); }
.btn.small { padding: 5px 12px; font-size: 14px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; align-items: center; }

/* ---- Gauges ---- */
.gauges { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.gauge .big { font-size: 30px; line-height: 1.1; margin: 2px 0 6px; }
.gauge-svg { width: 100%; height: auto; display: block; margin: 6px 0; }
.gauge-svg .seg { opacity: .38; } .gauge-svg .seg.on { opacity: 1; }
.seg0 { fill: var(--b0); } .seg1 { fill: var(--b1); } .seg2 { fill: var(--b2); } .seg3 { fill: var(--b3); } .seg4 { fill: var(--b4); }
.gauge-svg .marker { fill: var(--ink); }
.gauge-svg .gv { font-size: 12px; font-weight: 700; fill: var(--ink); }
.gauge-svg .gl { font-size: 11px; fill: var(--muted); } .gauge-svg .gl.on { fill: var(--ink); font-weight: 700; }
.stackbar { display: flex; gap: 2px; height: 30px; margin: 8px 0; }
.stk { display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; color: #fff; border-radius: 3px; overflow: hidden; white-space: nowrap; min-width: 6px; }
.stk.core { background: var(--sea); } .stk.satellite { background: var(--b3); } .stk.defensive { background: #5a6f9a; }
.comp { display: grid; grid-template-columns: 150px 1fr 40px; gap: 10px; align-items: center; font-size: 14px; padding: 5px 0; }
.comp .track { height: 8px; background: var(--line); border-radius: 4px; position: relative; }
.comp .track i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 4px; background: var(--b2); }
.comp .track i.hi { background: var(--b3); } .comp .track i.lo { background: var(--b0); }
@media (max-width: 560px) { .comp { grid-template-columns: 1fr 1fr 36px; } }

/* ---- Tables ---- */
.tbl { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); white-space: nowrap; }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.hl td { background: var(--sea-soft); }
td input[type="number"] { width: 84px; padding: 4px 6px; }
.sleeve-h td { background: var(--panel2); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; color: var(--muted); }
.icon-btn { border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 16px; padding: 2px 6px; }

/* ---- Rehearsal ---- */
.dd-svg { width: 100%; height: auto; }
.dd-svg .grid { stroke: var(--line); stroke-width: 1; } .dd-svg .ax { font-size: 11px; fill: var(--muted); }
.dd-svg .ln { stroke-width: 2; stroke-linejoin: round; }
.ln.market { stroke: var(--c-market); } .ln.mix { stroke: var(--c-mix); } .ln.guard { stroke: var(--c-guard); }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.legend i { display: inline-block; width: 18px; height: 3px; margin-right: 6px; vertical-align: middle; border-radius: 2px; }
.legend .market i { background: var(--c-market); } .legend .mix i { background: var(--c-mix); } .legend .guard i { background: var(--c-guard); }
.storms { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.result-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 12px 0; }
.result-row div { border: 1px solid var(--line); border-radius: 6px; padding: 8px 12px; background: var(--panel2); }
.result-row div.pick { border-color: var(--sea); background: var(--sea-soft); }
.result-row b { display: block; font-size: 22px; font-family: Charter, Georgia, serif; }
.result-row span { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }

/* ---- Story ---- */
.story p { font-family: Charter, Georgia, serif; font-size: 18px; max-width: 62ch; margin-bottom: 8px; }
.band-row td.cur { background: var(--sea-soft); font-weight: 600; }

/* ---- Modals ---- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(8, 18, 24, .55); display: none; align-items: flex-start; justify-content: center; z-index: 100; padding: 4vh 12px; overflow-y: auto; }
.modal-backdrop.show { display: flex; }
.modal { background: var(--panel); color: var(--ink); border-radius: 10px; max-width: 880px; width: 100%; padding: 22px 26px; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.modal.narrow { max-width: 460px; margin-top: 12vh; }
.modal header { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 8px; }
.modal header h2 { flex: 1; margin: 0; }
.progress-track { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin: 12px 0 8px; }
.progress-track i { display: block; height: 100%; width: 40%; background: var(--sea); border-radius: 4px; animation: slide 1.2s ease-in-out infinite; }
.progress-track.is-error i { animation: none; width: 100%; background: var(--storm); }
.progress-track.has-pct i { animation: none; }
@keyframes slide { 0% { margin-left: -40%; } 100% { margin-left: 100%; } }
@media (prefers-reduced-motion: reduce) { .progress-track i { animation: none; width: 100%; opacity: .6; } }

footer.legal { border-top: 1px solid var(--line); padding: 22px 0 60px; font-size: 12.5px; color: var(--muted); }
footer.legal p { max-width: 90ch; }

/* ---- Print: only the report modal ---- */
@media print {
  body.modal-open-for-print > *:not(#reportModalBackdrop) { display: none !important; }
  body.modal-open-for-print #reportModalBackdrop { display: block !important; position: static; background: none; padding: 0; }
  body.modal-open-for-print .modal { box-shadow: none; max-width: none; padding: 0; }
  body.modal-open-for-print .no-print { display: none !important; }
  body { background: #fff; color: #000; }
  .card { box-shadow: none; break-inside: avoid; }
}

/* ---- Small screens ---- */
@media (max-width: 640px) {
  .stepper { flex-wrap: nowrap; gap: 4px; padding-top: 10px; }
  .stepper button { flex: 1 1 0; min-width: 0; padding: 6px 6px; }
  .stepper button b { font-size: 10px; letter-spacing: .4px; }
  .stepper button span { font-size: 12px; line-height: 1.2; display: block; overflow-wrap: anywhere; }
  .top .wrap { gap: 8px; }
  .today { display: none; }
  .brand { font-size: 20px; }
  .card { padding: 14px 14px; }
}