/* Staggered Start - track terracotta, infield green, lane-line white, a stadium-board navy. */
:root {
  --bg: #f3efe7; --paper: #fffdf9; --ink: #1e2230; --muted: #5d6170; --line: #ddd5c8; --accent: #b8452c; --accent-ink: #fff;
  --turf: #2f6b3f; --navy: #1e2a4a; --soft: #f1e6da;
  --t-none: #5d6170; --t-small: #8a6400; --t-medium: #a5520a; --t-large: #b8452c; --t-beyond: #5a4fb0;
  --v-level: #2f6b3f; --v-nudge: #8a6400; --v-stagger: #b8452c; --v-switch: #5a4fb0; --declined: #666b78;
  --warn-bg: #fff1cf; --err-bg: #fbe0d8;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #12151d; --paper: #1b1f2a; --ink: #eef0f5; --muted: #a8adbb; --line: #333a4b; --accent: #f08566; --accent-ink: #12151d;
  --turf: #7cc890; --navy: #9fb3e8; --soft: #242a38;
  --t-none: #b3b8c6; --t-small: #f0c75e; --t-medium: #f6a65e; --t-large: #f08566; --t-beyond: #b9b1ff;
  --v-level: #7cc890; --v-nudge: #f0c75e; --v-stagger: #f08566; --v-switch: #b9b1ff; --declined: #b3b8c6;
  --warn-bg: #3b3218; --err-bg: #47241d;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 16px/1.5 "Avenir Next", "Segoe UI", Roboto, Helvetica, Arial, sans-serif; overflow-x: hidden; }
a { color: var(--accent); }
.hidden { display: none !important; }
.small { font-size: 14px; } .muted { color: var(--muted); } .mono { font-family: ui-monospace, Menlo, monospace; }
.bar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--navy); color: #fff; position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
:root[data-theme="dark"] .bar { background: #0b0e15; border-bottom: 1px solid var(--line); }
.bar .back { color: #fff; text-decoration: none; font-size: 14px; white-space: nowrap; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 18px; flex: 1; min-width: 0; letter-spacing: .3px; }
.logo { width: 26px; height: 26px; flex: none; }
.lg-track { fill: #c4553a; } .lg-lane { stroke: #fff; stroke-width: 1.2; fill: none; } .lg-start { stroke: #fff; stroke-width: 2.4; fill: none; }
.session { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.pill { border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 4px; padding: 6px 14px; font: inherit; font-size: 14px; cursor: pointer; text-decoration: none; display: inline-block; }
.bar .pill { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.pill:hover:not(:disabled) { border-color: var(--accent); }
.pill.solid, .bar .pill.solid { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.pill.ghost { cursor: default; background: transparent; }
.pill.tiny { padding: 3px 10px; font-size: 13px; }
.pill.big { padding: 10px 22px; font-size: 16px; text-transform: uppercase; letter-spacing: 1px; }
.pill:disabled { opacity: .5; cursor: not-allowed; }
main { max-width: 980px; margin: 0 auto; padding: 0 16px 40px; }
.hero { padding: 26px 0 8px; }
.kicker { color: var(--turf); font-weight: 600; margin: 0 0 6px; font-size: 14px; text-transform: uppercase; letter-spacing: .6px; }
h1 { font-size: 44px; line-height: 1.05; margin: 0 0 10px; color: var(--ink); font-weight: 800; letter-spacing: -.5px; }
.h1b { display: block; font-size: 22px; color: var(--accent); font-weight: 600; margin-top: 6px; letter-spacing: 0; }
.lede { max-width: 680px; margin: 0 0 12px; }
.samples { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.chip { border: 1px solid var(--turf); background: transparent; color: var(--ink); border-radius: 4px; padding: 5px 10px; font: inherit; font-size: 14px; cursor: pointer; }
.chip.on { background: var(--turf); color: var(--paper); }
.panel { background: var(--paper); border: 1px solid var(--line); border-left: 6px solid var(--accent); border-radius: 6px; padding: 18px; margin: 16px 0; }
.ph { margin: 0 0 8px; font-size: 21px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-weight: 800; }
.step-no { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 4px; background: var(--paper); color: var(--accent); border: 2px solid var(--accent); font-size: 16px; }
.free { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--turf); border: 1px solid var(--turf); border-radius: 4px; padding: 1px 6px; }
.note { background: var(--warn-bg); border-radius: 4px; padding: 8px 10px; }
.cardrow { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 10px; }
.ggrid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 10px; margin-bottom: 8px; }
.prows { display: grid; gap: 8px; }
.prow { display: grid; grid-template-columns: 30px minmax(0, 1.3fr) 70px minmax(0, 2fr) auto; gap: 8px; align-items: end; padding: 8px 10px; background: var(--soft); border-radius: 4px; }
.pno { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 4px; background: var(--accent); color: #fff; font-weight: 700; margin-bottom: 4px; }
.flab { display: block; font-size: 12px; color: var(--muted); margin-bottom: 2px; }
.ftxt { display: block; min-width: 0; }
input[type=text] { width: 100%; font: inherit; font-size: 15px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 4px; background: var(--paper); color: var(--ink); }
input[type=text]:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.trackwrap svg { width: 100%; height: auto; display: block; border-radius: 10px; }
.sub { margin: 14px 0 6px; font-size: 16px; }
.freelist { margin: 0; padding-left: 18px; } .freelist li { margin-bottom: 6px; }
.runrow { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.gate { background: var(--warn-bg); padding: 8px 10px; border-radius: 4px; }
.steps { list-style: none; padding: 0; margin: 0 0 8px; } .step { color: var(--muted); } .step.done { color: var(--turf); } .step.active { color: var(--ink); font-weight: bold; }
.step-ic { display: inline-block; width: 16px; }
.raw { white-space: pre-wrap; word-break: break-word; font-size: 13px; max-height: 320px; overflow: auto; }
.res-top { display: flex; justify-content: space-between; gap: 10px; align-items: center; flex-wrap: wrap; }
.res-kick { margin: 0; color: var(--muted); }
.badge { border-radius: 4px; padding: 4px 12px; font-size: 13px; letter-spacing: 1.5px; background: var(--declined); color: var(--paper); font-weight: 800; }
.badge.v-level { background: var(--v-level); } .badge.v-nudge { background: var(--v-nudge); } .badge.v-stagger { background: var(--v-stagger); } .badge.v-switch { background: var(--v-switch); }
.result.empty .cards { opacity: .7; }
.reason { background: var(--soft); border-radius: 4px; padding: 10px; }
.rline { font-size: 18px; margin: 8px 0; font-weight: 600; }
.cards { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.card { border: 1px solid var(--line); border-left: 6px solid var(--t-none); border-radius: 4px; padding: 10px 12px; background: var(--paper); }
.card.t-small { border-left-color: var(--t-small); } .card.t-medium { border-left-color: var(--t-medium); } .card.t-large { border-left-color: var(--t-large); } .card.t-beyond { border-left-color: var(--t-beyond); }
.chead { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.cno { font-weight: bold; color: var(--accent); } .ctitle { font-weight: bold; flex: 1; min-width: 100px; overflow-wrap: anywhere; }
.tag { font-size: 12px; border: 1.5px solid currentColor; border-radius: 4px; padding: 0 6px; letter-spacing: .3px; white-space: nowrap; color: var(--t-none); }
.tag.t-small { color: var(--t-small); } .tag.t-medium { color: var(--t-medium); } .tag.t-large { color: var(--t-large); } .tag.t-beyond { color: var(--t-beyond); }
.card p { margin: 4px 0; font-size: 14px; } .none { color: var(--muted); }
.rwords { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.wbox { background: var(--soft); border-radius: 4px; padding: 10px 12px; border-top: 3px solid var(--turf); } .wbox.sw { border-top-color: var(--v-switch); } .wbox h4 { margin: 0 0 4px; } .wbox p { margin: 0; }
.closing { font-style: italic; margin: 12px 0; }
.recon { padding-left: 18px; } .recon li.warn { background: var(--warn-bg); } .recon li.err { background: var(--err-bg); } .recon li { border-radius: 4px; padding: 2px 6px; margin-bottom: 4px; }
.exports { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.saved { list-style: none; padding: 0; margin: 10px 0 0; }
.hrow { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-top: 1px solid var(--line); }
.hinfo { flex: 1; min-width: 0; display: flex; flex-direction: column; overflow-wrap: anywhere; }
.hdot { width: 12px; height: 12px; border-radius: 2px; background: var(--declined); flex: none; }
.hdot.v-level { background: var(--v-level); } .hdot.v-nudge { background: var(--v-nudge); } .hdot.v-stagger { background: var(--v-stagger); } .hdot.v-switch { background: var(--v-switch); }
.hbtns { display: flex; gap: 6px; }
.foot { max-width: 980px; margin: 0 auto; padding: 10px 16px 40px; color: var(--muted); font-size: 14px; }
.toasts { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); display: grid; gap: 6px; z-index: 20; width: min(92vw, 460px); }
.toast { background: var(--ink); color: var(--paper); padding: 9px 14px; border-radius: 6px; font-size: 14px; transition: opacity .5s; }
.toast.err { background: #8a3b2b; color: #fff; } .toast.gone { opacity: 0; } .toast a { color: inherit; }
@media (max-width: 720px) {
  h1 { font-size: 34px; } .rwords { grid-template-columns: 1fr; }
  .ggrid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .gwide { grid-column: 1 / -1; }
  .prow { grid-template-columns: 30px minmax(0, 1fr) 64px; } .pnote { grid-column: 2 / -1; } .prow .pill { grid-column: 2 / -1; justify-self: start; }
  .back-t { display: none; } .brand { font-size: 16px; }
}
@media print { .bar, .samples, .askbox, .histbox, .exports, .toasts, .cardrow { display: none !important; } body { background: #fff; } }