:root {
  --bg: #eef0ec; --card: #ffffff; --ink: #1d262e; --muted: #57636d; --line: #d4d9dd; --field: #f7f8f6;
  --accent: #1f5f8b; --accent-ink: #ffffff; --sign: #f2c230; --sign-ink: #1d262e; --tarmac: #39434c;
  --warn: #9a3412; --warn-bg: #fbe7dc; --bad: #9f1d1d; --bad-bg: #f9dede; --ok-bg: #e2f1e6; --ok-ink: #22633b; --info-bg: #eef2f5;
  --v-two: #9f1d1d; --v-fold: #7b5ea7; --v-wedge: #b45309; --v-straight: #22633b; --v-ink: #ffffff;
  --s1: #e4572e; --s2: #e9a23b; --s3: #2a9d8f; --s4: #7b5ea7; --s5: #3a86c8; --s6: #6a994e; --s-ink: #ffffff;
  --shadow: 0 1px 2px rgba(20, 30, 40, 0.06), 0 6px 18px rgba(20, 30, 40, 0.06);
}
html[data-theme="dark"] {
  --bg: #11171c; --card: #1a2229; --ink: #e8eef3; --muted: #a7b4bf; --line: #2e3a44; --field: #151c22;
  --accent: #7cc0ef; --accent-ink: #0d1318; --sign: #f2c230; --sign-ink: #1d262e; --tarmac: #0b0f13;
  --warn: #ffb486; --warn-bg: #3b2418; --bad: #ff9c9c; --bad-bg: #3c1d1d; --ok-bg: #19301f; --ok-ink: #9fdcb4; --info-bg: #212b33;
  --v-two: #ff9c9c; --v-fold: #c5aaf0; --v-wedge: #ffc061; --v-straight: #8ed9a8; --v-ink: #11171c;
  --s1: #ff7a52; --s2: #ffc061; --s3: #4fd1c1; --s4: #a98bd6; --s5: #6cb4f0; --s6: #93c473; --s-ink: #0d1318;
  --shadow: none;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: var(--accent); }
h1, h2, h3, .brand strong, .bootsay, .num b { font-family: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", Arial, sans-serif; font-stretch: condensed; letter-spacing: 0.01em; }
code { font-size: 0.88em; background: var(--info-bg); padding: 1px 4px; border-radius: 3px; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.small { font-size: 0.88rem; } .muted { color: var(--muted); }

.top { display: flex; align-items: center; gap: 12px; padding: 10px 18px 13px; background: var(--card); position: sticky; top: 0; z-index: 5; flex-wrap: wrap;
  border-bottom: 6px solid transparent; border-image: repeating-linear-gradient(-45deg, var(--sign) 0 12px, var(--tarmac) 12px 24px) 6; }
.back { text-decoration: none; color: var(--muted); font-size: 0.9rem; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.2rem; }
.brand strong { text-transform: uppercase; }
.logo { width: 32px; height: 24px; }
.lg-a { fill: var(--s3); } .lg-b { fill: var(--s2); } .lg-c { fill: var(--s1); } .lg-s { fill: none; stroke: var(--ink); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.session { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.chip-s { font-size: 0.85rem; color: var(--muted); border: 1px solid var(--line); border-radius: 4px; padding: 4px 10px; }

.btn { font: inherit; font-size: 0.9rem; border: 2px solid var(--ink); color: var(--ink); background: transparent; border-radius: 6px; padding: 6px 14px; cursor: pointer; text-decoration: none; display: inline-block; line-height: 1.3; }
.btn:hover:not(:disabled) { background: var(--info-bg); }
.btn.solid { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.solid:hover:not(:disabled) { filter: brightness(1.08); background: var(--accent); color: var(--accent-ink); }
.btn.big { font-size: 1.05rem; padding: 10px 22px; }
.btn.tiny { font-size: 0.8rem; padding: 4px 11px; border-width: 1.5px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

main { max-width: 1180px; margin: 0 auto; padding: 18px 16px 30px; }
.hero { padding: 8px 2px 4px; }
.eyebrow { display: inline-block; margin: 0 0 6px; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; background: var(--sign); color: var(--sign-ink); padding: 3px 9px; border-radius: 3px; }
h1 { font-size: clamp(2rem, 6vw, 3.1rem); line-height: 1.05; margin: 4px 0 8px; text-transform: uppercase; }
h1 .sub { display: block; font-size: clamp(1rem, 2.6vw, 1.3rem); text-transform: none; font-weight: 500; color: var(--muted); margin-top: 6px; line-height: 1.3; }
.lede { max-width: 760px; margin: 6px 0 12px; }
.samples { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.sample { font: inherit; font-size: 0.88rem; border: 1.5px dashed var(--muted); background: var(--card); color: var(--ink); border-radius: 6px; padding: 5px 12px; cursor: pointer; }
.sample:hover { border-style: solid; }
.sample.on { border: 2px solid var(--ink); background: var(--sign); color: var(--sign-ink); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin: 14px 0; box-shadow: var(--shadow); }
.drawing { width: 100%; line-height: 0; border-radius: 8px; overflow: hidden; }
.drawing svg { display: block; width: 100%; height: auto; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 8px 0 0; }
.legend .li { display: inline-flex; align-items: center; gap: 6px; }
.lg { display: inline-block; width: 18px; height: 12px; border-radius: 3px; }
.lg-band { background: linear-gradient(90deg, var(--s1) 0 33%, var(--s2) 33% 66%, var(--s3) 66%); }
.lg-heavy { background: var(--muted); box-shadow: inset 0 -4px 0 var(--ink); }
.lg-frag { border: 2px dashed var(--ink); }
.lg-ghost { border: 2px dashed var(--muted); background: transparent; }
.actions { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 10px; }

.bench { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; }
.bench .card { margin: 0; }
@media (max-width: 860px) { .bench { grid-template-columns: minmax(0, 1fr); } }
.ch { font-size: 1.25rem; margin: 0 0 12px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; text-transform: uppercase; }
.no { display: inline-grid; place-items: center; width: 32px; height: 32px; background: var(--sign); color: var(--sign-ink); font-size: 1rem; clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); }
.free, .paid { font-family: system-ui, sans-serif; text-transform: lowercase; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; padding: 2px 8px; border-radius: 3px; }
.free { background: var(--ok-bg); color: var(--ok-ink); } .paid { background: var(--warn-bg); color: var(--warn); }
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px 12px; }
@media (max-width: 520px) { .grid2 { grid-template-columns: minmax(0, 1fr); } }
.fld { margin-bottom: 8px; }
.lab { display: block; font-weight: 600; font-size: 0.9rem; margin: 4px 0 4px; }
.inp { width: 100%; font: inherit; font-size: 0.95rem; color: var(--ink); background: var(--field); border: 1.5px solid var(--line); border-radius: 6px; padding: 8px 10px; }
.inp:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
textarea.text { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.88rem; line-height: 1.5; resize: vertical; min-height: 180px; }
.note { background: var(--warn-bg); color: var(--warn); border-radius: 6px; padding: 8px 12px; font-size: 0.9rem; }

.numbers { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.numbers.five { grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 520px) { .numbers, .numbers.five { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.num { background: var(--info-bg); border-radius: 6px; padding: 8px 10px; }
.num b { display: block; font-size: 1.5rem; line-height: 1.1; }
.num span { font-size: 0.8rem; color: var(--muted); }
.vline { grid-column: 1 / -1; margin: 4px 0 0; }
.vtag { display: inline-block; font-weight: 700; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; padding: 2px 9px; border-radius: 3px; color: var(--v-ink); margin-right: 4px; }
.v-two-trips { background: var(--v-two); } .v-fold-the-seats { background: var(--v-fold); } .v-wedge-the-heavy { background: var(--v-wedge); } .v-straight-in { background: var(--v-straight); }
.orderlist { list-style: none; padding: 0; margin: 12px 0 0; border-top: 1px solid var(--line); }
.orow { display: grid; grid-template-columns: 24px 24px minmax(0, 1fr) auto; gap: 8px; align-items: center; padding: 7px 2px; border-bottom: 1px solid var(--line); }
.orow.none { display: block; }
.on { font-weight: 700; color: var(--muted); text-align: right; }
.ot { min-width: 0; overflow-wrap: anywhere; }
.ot b { font-weight: 600; }
.of { display: flex; flex-wrap: wrap; gap: 4px; justify-content: flex-end; }
@media (max-width: 520px) { .orow { grid-template-columns: 22px 22px minmax(0, 1fr); } .of { grid-column: 3; justify-content: flex-start; } }
.flag { font-size: 0.74rem; padding: 1px 7px; border-radius: 3px; background: var(--info-bg); color: var(--ink); white-space: nowrap; }
.f-heavy { background: var(--ink); color: var(--card); } .f-frag { border: 1.5px dashed var(--ink); background: transparent; } .f-up { background: var(--ok-bg); color: var(--ok-ink); }
.sdot { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; font-size: 0.72rem; font-weight: 700; color: var(--s-ink); flex: none; }
.s1 { background: var(--s1); } .s2 { background: var(--s2); } .s3 { background: var(--s3); } .s4 { background: var(--s4); } .s5 { background: var(--s5); } .s6 { background: var(--s6); }
.extras { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 6px 14px; margin-top: 10px; }
.xgroup { min-width: 0; } .xgroup:last-child { grid-column: 1 / -1; }
.xh { margin: 4px 0 2px; font-weight: 700; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.xgroup p.small { margin: 0; overflow-wrap: anywhere; }
.xstops { list-style: none; padding: 0; margin: 0; font-size: 0.9rem; }
.xstops li { display: flex; gap: 6px; align-items: baseline; padding: 2px 0; flex-wrap: wrap; }

.runcard .stages { list-style: none; padding: 0; margin: 8px 0; }
.progress { background: var(--info-bg); border-radius: 8px; padding: 10px 14px; margin-top: 10px; }
.stage { padding: 2px 0; color: var(--muted); } .stage.done { color: var(--ok-ink); } .stage.active { color: var(--ink); font-weight: 600; }
.stage-ic { display: inline-block; width: 16px; font-family: ui-monospace, monospace; }
.raw { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--field); border: 1px solid var(--line); border-radius: 6px; padding: 10px; max-height: 320px; overflow: auto; font-size: 0.82rem; }
.result { margin-top: 14px; border-top: 2px solid var(--ink); padding-top: 10px; }
.result.empty .rhead { opacity: 0.8; }
.rhead { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.badge { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; padding: 3px 10px; border-radius: 3px; background: var(--info-bg); color: var(--muted); }
.badge.on { color: var(--v-ink); }
.badge.on.v-two-trips { background: var(--v-two); } .badge.on.v-fold-the-seats { background: var(--v-fold); } .badge.on.v-wedge-the-heavy { background: var(--v-wedge); } .badge.on.v-straight-in { background: var(--v-straight); }
.headline { font-size: 1.15rem; font-weight: 600; margin: 10px 0 4px; padding: 10px 14px; background: var(--sign); color: var(--sign-ink); border-radius: 6px; }
.result h3 { font-size: 1.05rem; text-transform: uppercase; margin: 16px 0 6px; letter-spacing: 0.02em; }
.lsteps, .lstops { list-style: none; padding: 0; margin: 0; }
.lstep, .lstop { display: flex; gap: 8px; align-items: flex-start; padding: 7px 0; border-bottom: 1px dashed var(--line); }
.pn { flex: none; width: 24px; height: 24px; display: inline-grid; place-items: center; border-radius: 4px; background: var(--ink); color: var(--card); font-size: 0.8rem; font-weight: 700; }
.lstep .sdot, .lstop .sdot { margin-top: 2px; }
.say { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.say .from { display: block; font-size: 0.8rem; color: var(--muted); }
.rnotes { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; margin-top: 12px; }
@media (max-width: 640px) { .rnotes, .extras { grid-template-columns: minmax(0, 1fr); } }
.rnote { background: var(--info-bg); border-radius: 8px; padding: 10px 12px; position: relative; }
.rnote.wide { grid-column: 1 / -1; }
.rnote p { margin: 0; white-space: pre-line; overflow-wrap: anywhere; }
.rnote .rt { font-weight: 700; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 4px; color: var(--muted); padding-right: 56px; }
.copy1 { position: absolute; top: 8px; right: 8px; }
.recon { margin: 0; padding-left: 18px; font-size: 0.9rem; }
.recon li { margin: 3px 0; } .recon li.bad { color: var(--bad); } .recon li.warn { color: var(--warn); } .recon li.none { color: var(--ok-ink); list-style: none; margin-left: -18px; }
.exports { border-top: 1px solid var(--line); padding-top: 10px; }

.bootpanel { border: 2px solid var(--ink); }
.boothead { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.boothead .btn { margin-left: auto; }
.boottag { display: flex; gap: 6px; align-items: center; margin: 12px 0 0; font-weight: 700; text-transform: uppercase; font-size: 0.82rem; letter-spacing: 0.05em; color: var(--muted); }
.bootsay { font-size: clamp(1.3rem, 4.4vw, 1.9rem); line-height: 1.25; margin: 6px 0 4px; min-height: 3em; overflow-wrap: anywhere; }

.saved { list-style: none; padding: 0; margin: 10px 0 0; }
.hrow { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.hrow.none { color: var(--muted); font-size: 0.9rem; }
.hinfo { display: flex; flex-direction: column; min-width: 0; overflow-wrap: anywhere; }
.hbtns { display: flex; gap: 6px; }
.about p { max-width: 900px; }
.foot { max-width: 1180px; margin: 0 auto; padding: 8px 16px 36px; font-size: 0.86rem; color: var(--muted); }
.toasts { position: fixed; bottom: 14px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 6px; z-index: 20; width: min(92vw, 520px); }
.toast { background: var(--ink); color: var(--card); padding: 9px 14px; border-radius: 8px; font-size: 0.9rem; box-shadow: var(--shadow); transition: opacity 0.5s; }
.toast.err { background: var(--bad); color: #ffffff; }
html[data-theme="dark"] .toast.err { color: #11171c; }
.toast a { color: inherit; font-weight: 700; }
.toast.gone { opacity: 0; }
@media (max-width: 520px) { .top { padding: 8px 12px 11px; gap: 8px; } .brand { font-size: 1rem; } .back-t { display: none; } .card { padding: 13px; } }
@media print {
  .top, .samples, .actions, .bench, .runcard .small.muted, .progress, .card:not(.runcard):not(.scene-card), .foot, .toasts { display: none !important; }
  body { background: #ffffff; color: #000000; } .card { box-shadow: none; border: 0; }
}
.card, .result, .bootpanel, h2, h3 { scroll-margin-top: 84px; }
.scene-card .drawing { max-width: 940px; margin: 0 auto; }