/* Six Stones - a riverbank in daylight: moss, river blue and slate stones in light mode; the same river at night in
 * dark mode. The river drawing keeps its own colours per theme. */
:root { --bg: #eef2ec; --panel: #fbfcf8; --ink: #1f2a26; --muted: #53605a; --line: #cfd8cf; --rule: #1f2a26; --acc: #2f6f8f; --acc-ink: #ffffff;
  --water: #4f9bb5; --water-soft: #dcecf1; --stone: #8e8b84; --teal: #1e7a52; --teal-soft: #dcefe4; --free-bg: #dcefe4; --free-ink: #14553a;
  --solid: #1e7a52; --slip: #b5730c; --gap: #c0392b; --open: #6f7a82;
  --t-solid: #dcefe4; --t-solid-ink: #14553a; --t-slip: #f7e9cc; --t-slip-ink: #5a3a04; --t-gap: #f8dedb; --t-gap-ink: #7a1d14; --t-open: #e6e9ea; --t-open-ink: #39434a; --t-link: #e3e8f2; --t-link-ink: #29365a;
  --warn-bg: #f9e0dc; --warn-ink: #7a1d20; --info-bg: #e3e8f2; --info-ink: #29365a;
  --v-dry: #dcefe4; --v-dry-ink: #14553a; --v-wet: #f7e9cc; --v-wet-ink: #5a3a04; --v-fell: #f8dedb; --v-fell-ink: #7a1d14;
  --v-declined: #ece6ee; --v-declined-ink: #4e2f58; --v-none: #e6e9ea; --v-none-ink: #39434a; color-scheme: light; }
:root[data-theme="dark"] { --bg: #0f1716; --panel: #16201f; --ink: #e8f0ec; --muted: #a9b8b1; --line: #2c3a38; --rule: #cfdcd6; --acc: #6cc0de; --acc-ink: #06222c;
  --water: #3b8aa5; --water-soft: #173a46; --stone: #9c978c; --teal: #5fd39b; --teal-soft: #173a2c; --free-bg: #173a2c; --free-ink: #c3f2da;
  --solid: #5fd39b; --slip: #f2b34b; --gap: #ff7b6b; --open: #9aa6ae;
  --t-solid: #173a2c; --t-solid-ink: #c3f2da; --t-slip: #3d2f12; --t-slip-ink: #f8dfaa; --t-gap: #45201c; --t-gap-ink: #ffd0c9; --t-open: #273133; --t-open-ink: #d5dee0; --t-link: #222a40; --t-link-ink: #d3dcf5;
  --warn-bg: #45201f; --warn-ink: #ffd0cb; --info-bg: #222a40; --info-ink: #d3dcf5;
  --v-dry: #173a2c; --v-dry-ink: #c3f2da; --v-wet: #3d2f12; --v-wet-ink: #f8dfaa; --v-fell: #45201c; --v-fell-ink: #ffd0c9;
  --v-declined: #33233a; --v-declined-ink: #ebd2f3; --v-none: #273133; --v-none-ink: #d5dee0; color-scheme: dark; }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; overflow-x: hidden; }
a { color: var(--acc); }
h1, h2, h3, h4 { line-height: 1.2; overflow-wrap: anywhere; font-weight: 800; }
h1, .ph, .rlabel { font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif; }
.hidden { display: none !important; }
.visually-hidden { 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); } .mono { font-family: ui-monospace, Menlo, Consolas, monospace; }
.none { color: var(--muted); font-style: italic; }

/* Header */
.bar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 10px; padding: 8px 16px; background: var(--panel); border-bottom: 3px solid var(--acc); flex-wrap: wrap; }
.back { text-decoration: none; font-weight: 700; white-space: nowrap; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.06rem; min-width: 0; }
.brand strong { white-space: nowrap; font-family: Georgia, "Iowan Old Style", serif; letter-spacing: 0.01em; }
.logo { width: 28px; height: 28px; flex: none; }
.lg-w { fill: var(--water); } .lg-s { fill: var(--stone); stroke: var(--rule); stroke-width: 0.8; }
.session { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.pill { display: inline-flex; align-items: center; justify-content: center; min-height: 36px; padding: 6px 14px; border-radius: 999px; border: 1.5px solid var(--rule); background: var(--panel); color: var(--ink); font: 700 0.9rem/1 inherit; font-family: inherit; cursor: pointer; text-decoration: none; white-space: nowrap; }
.pill:hover:not(:disabled) { background: var(--water-soft); }
.pill.solid { background: var(--acc); color: var(--acc-ink); border-color: var(--acc); }
.pill.solid:hover:not(:disabled) { filter: brightness(1.08); background: var(--acc); }
.pill.ghost { border-color: var(--line); cursor: default; }
.pill.tiny { min-height: 32px; padding: 4px 12px; font-size: 0.8rem; }
.pill.big { min-height: 50px; padding: 10px 24px; font-size: 1.04rem; }
.pill:disabled { opacity: 0.5; cursor: not-allowed; }
.pill:focus-visible, .chip:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }

main { max-width: 1060px; margin: 0 auto; padding: 0 16px 40px; }
.hero { padding: 26px 0 6px; }
.kicker { display: inline-block; margin: 0 0 10px; padding: 6px 12px; background: var(--water-soft); color: var(--ink); border: 1px dashed var(--water); border-radius: 8px; font-size: 0.9rem; max-width: 76ch; }
.hero h1 { font-size: clamp(2.2rem, 9vw, 3.6rem); margin: 8px 0 10px; color: var(--acc); letter-spacing: -0.01em; }
.h1b { display: block; font: 600 clamp(1.02rem, 3.6vw, 1.3rem)/1.3 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); margin-top: 6px; }
.lede { max-width: 68ch; font-size: 1.04rem; }
.samples { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 12px; }
.chip { min-height: 36px; padding: 6px 14px; border-radius: 6px; border: 1.5px dashed var(--muted); background: var(--panel); color: var(--ink); font: 700 0.88rem inherit; font-family: inherit; cursor: pointer; }
.chip.on { border-style: solid; border-color: var(--teal); background: var(--teal-soft); color: var(--free-ink); }

.panel { background: var(--panel); border: 1.5px solid var(--rule); border-radius: 14px; padding: 16px 18px; margin: 22px 0; box-shadow: 4px 4px 0 var(--line); }
.ph { margin: 0 0 10px; font-size: 1.28rem; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.step-no { display: inline-flex; width: 32px; height: 32px; border-radius: 50%; align-items: center; justify-content: center; background: var(--acc); color: var(--acc-ink); font: 800 0.96rem/1 system-ui, sans-serif; flex: none; }
.free { font: 800 0.72rem/1.3 system-ui, sans-serif; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 8px; border-radius: 4px; background: var(--free-bg); color: var(--free-ink); }
.lbl { display: block; font-weight: 700; margin: 12px 0 4px; }
.lbl .muted { font-weight: 500; font-size: 0.86rem; }
.count { font-weight: 800; font-size: 0.82rem; color: var(--teal); }
.three { display: grid; grid-template-columns: 1fr 1fr 0.6fr; gap: 0 16px; }
input[type=text], textarea, select { width: 100%; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font: 1rem/1.45 inherit; font-family: inherit; }
select { min-height: 44px; }
textarea { resize: vertical; min-height: 110px; }
textarea.drop { border-color: var(--acc); border-style: dashed; }
.filerow { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 10px; }
.note { margin: 10px 0 0; padding: 8px 12px; background: var(--warn-bg); color: var(--warn-ink); border-radius: 8px; }
.sub { font-size: 1.04rem; margin: 18px 0 8px; }
.cardrow { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; }

/* The river, your own grading */
.riverwrap { background: var(--bg); border-radius: 12px; overflow: hidden; border: 1.5px solid var(--line); }
.riverwrap svg { display: block; width: 100%; height: auto; }
.owngrid2 { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 22px; align-items: start; }
.ownlist { list-style: none; padding: 0; margin: 0; }
.ownrow { padding: 8px 0; border-top: 1px dashed var(--line); display: grid; gap: 4px; }
.ownrow .lbl { margin: 0; font-size: 0.92rem; overflow-wrap: anywhere; }
.ownrow select { padding: 8px 10px; min-height: 40px; font-size: 0.9rem; }
.ownrow .ask { line-height: 1.3; overflow-wrap: anywhere; }
.hopno { display: inline-flex; min-width: 26px; height: 26px; padding: 0 6px; border-radius: 13px; align-items: center; justify-content: center; background: var(--acc); color: var(--acc-ink); font: 800 0.8rem/1 system-ui, sans-serif; flex: none; }
.freelist { margin: 0; padding-left: 20px; }
.freelist li { margin: 4px 0; }
.legend { margin-top: 12px; }
.lg { font-weight: 800; padding: 1px 6px; border-radius: 4px; }
.lg.g-solid { background: var(--t-solid); color: var(--t-solid-ink); } .lg.g-slippery { background: var(--t-slip); color: var(--t-slip-ink); } .lg.g-gap { background: var(--t-gap); color: var(--t-gap-ink); }
.chip.roll { border-style: solid; border-color: var(--acc); }
/* The tested crossing */
.badge.v-dry-feet { background: var(--v-dry); color: var(--v-dry-ink); }
.badge.v-wet-feet { background: var(--v-wet); color: var(--v-wet-ink); }
.badge.v-fell-in { background: var(--v-fell); color: var(--v-fell-ink); }
.hops { list-style: none; padding: 0; margin: 12px 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.hops li.none { grid-column: 1 / -1; }
.hopcard { padding: 12px 14px; border: 1.5px solid var(--line); border-left-width: 6px; border-radius: 10px; background: var(--bg); min-width: 0; overflow-wrap: anywhere; }
.hopcard.g-solid { border-left-color: var(--solid); } .hopcard.g-slippery { border-left-color: var(--slip); } .hopcard.g-gap { border-left-color: var(--gap); } .hopcard.g-open { border-left-color: var(--open); }
.hopcard.weakest { border-style: dashed; border-left-style: solid; }
.hhead { display: flex; align-items: center; gap: 8px; }
.hfrom { font-weight: 800; min-width: 0; }
.htags { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 0; }
.hwhy { margin: 6px 0 4px; }
.hfix { margin: 6px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.qlabel { font-weight: 700; color: var(--muted); }
.tag { font: 800 0.7rem/1.3 system-ui, sans-serif; text-transform: uppercase; letter-spacing: 0.05em; padding: 2px 7px; border-radius: 4px; white-space: nowrap; }
.t-solid { background: var(--t-solid); color: var(--t-solid-ink); } .t-slippery { background: var(--t-slip); color: var(--t-slip-ink); } .t-gap { background: var(--t-gap); color: var(--t-gap-ink); } .t-open { background: var(--t-open); color: var(--t-open-ink); }
.t-link { background: var(--t-link); color: var(--t-link-ink); text-transform: none; letter-spacing: 0; }
.t-weak { background: var(--acc); color: var(--acc-ink); }
.shortcut { list-style: none; padding: 0; margin: 0 0 8px; }
.step-row { display: flex; gap: 8px; align-items: flex-start; padding: 5px 0; border-top: 1px dashed var(--line); }
.step-row:first-child { border-top: 0; }
.small-no { min-width: 22px; height: 22px; font-size: 0.72rem; margin-top: 2px; }
.srow { min-width: 0; overflow-wrap: anywhere; }
.srow .tag { margin-left: 2px; }
.sw { display: block; color: var(--muted); }
@media (max-width: 640px) { .hops { grid-template-columns: minmax(0, 1fr); } .rwords { grid-template-columns: minmax(0, 1fr); } }

/* Ask */
.runrow { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 10px; }
.gate { margin: 12px 0 0; padding: 10px 12px; background: var(--info-bg); color: var(--info-ink); border-radius: 8px; }
.gate .pill { margin-left: 4px; }
.progress h3 { margin: 0 0 8px; }
.steps { list-style: none; padding: 0; margin: 0; }
.step { padding: 3px 0; color: var(--muted); }
.step.done { color: var(--ink); } .step.active { color: var(--acc); font-weight: 700; }
.step-ic { display: inline-block; width: 1.2em; font-family: ui-monospace, Menlo, monospace; }
.raw { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--bg); padding: 10px; border-radius: 8px; max-height: 320px; overflow: auto; font-size: 0.82rem; }

/* The tested crossing: header, words, checks */
.res-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.res-kick { margin: 0; color: var(--muted); font-weight: 600; }
.badge { display: inline-flex; padding: 6px 14px; border-radius: 999px; border: 1.5px solid var(--rule); font: 800 0.82rem/1.3 system-ui, sans-serif; letter-spacing: 0.06em; background: var(--bg); color: var(--ink); }
.badge.v-declined { background: var(--v-declined); color: var(--v-declined-ink); }
.badge.v-none { background: var(--v-none); color: var(--v-none-ink); }
.rlabel { font-size: 1.5rem; margin: 10px 0 6px; }
.reason { font-size: 1.04rem; padding: 10px 12px; background: var(--v-declined); color: var(--v-declined-ink); border-radius: 8px; }
.rcounts { margin: 6px 0 0; padding: 10px 12px; background: var(--water-soft); border-left: 4px solid var(--water); border-radius: 4px; font-weight: 700; }
.rwords { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 6px 0 0; }
.wbox { padding: 10px 12px; border-radius: 10px; background: var(--bg); border: 1px solid var(--line); min-width: 0; overflow-wrap: anywhere; }
.wbox h4 { margin: 0 0 4px; font-size: 0.92rem; color: var(--acc); }
.wbox p { margin: 0; }
.closing { font-style: italic; }
.recon { margin: 6px 0; padding-left: 0; list-style: none; }
.recon li { margin: 4px 0; padding: 6px 10px; border-radius: 6px; background: var(--free-bg); color: var(--free-ink); }
.recon li.warn { background: var(--warn-bg); color: var(--warn-ink); }
.recon li.info { background: var(--info-bg); color: var(--info-ink); }
.recon li.none { font-style: normal; }
.exports { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.result.empty .exports, .result.empty .rwords { display: none; }

/* Saved */
.saved { list-style: none; padding: 0; margin: 12px 0 0; }
.hrow { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-top: 1px dashed var(--line); }
.hrow.none { color: var(--muted); font-style: italic; }
.hdot { width: 12px; height: 12px; border-radius: 3px; flex: none; background: var(--line); border: 1px solid var(--rule); }
.hdot.v-dry-feet { background: var(--solid); } .hdot.v-wet-feet { background: var(--slip); } .hdot.v-fell-in { background: var(--gap); } .hdot.v-declined { background: #8e6a9a; }
.hinfo { display: flex; flex-direction: column; min-width: 0; flex: 1; overflow-wrap: anywhere; }
.hbtns { display: flex; gap: 6px; flex: none; }

.foot { max-width: 1060px; margin: 0 auto; padding: 8px 16px 40px; color: var(--muted); font-size: 0.86rem; }
.foot p { color: var(--muted); }
.toasts { position: fixed; right: 12px; bottom: 12px; display: flex; flex-direction: column; gap: 8px; z-index: 20; max-width: min(380px, calc(100vw - 24px)); }
.toast { padding: 10px 14px; border-radius: 8px; border: 1px solid var(--rule); transition: opacity .5s; }
.toast.ok { background: var(--free-bg); color: var(--free-ink); }
.toast.err { background: var(--warn-bg); color: var(--warn-ink); }
.toast a { color: inherit; font-weight: 700; }
.toast.gone { opacity: 0; }

@media (max-width: 900px) {
  .owngrid2 { grid-template-columns: minmax(0, 1fr); }
  .rwords { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .three { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 460px) {
  .bar { padding: 6px 10px; gap: 6px; }
  .back-t { display: none; }
  .brand { font-size: 0.98rem; }
  .pill { padding: 6px 10px; }
  .panel { padding: 14px 12px; margin: 18px 0; box-shadow: 3px 3px 0 var(--line); }
}
@media print {
  .bar, .samples, .askbox, .histbox, .aboutbox, .exports, .cardrow, .owngrid2, .toasts, #progressPanel, .lay, #walkShortcut { display: none !important; }
  .panel { box-shadow: none; }
}