/* AI1000 site styles, shared by every page. Tokens, base, one three-column grid (2.5rem gutter), masthead, footer and the shared parts: marks, notes, ledgers, buttons, stepper, watch. Breakpoints: 960 and 640 only. Dark cloth by default; light paper when the reader asks (data-theme="light" on <html>). Page-specific rules live in each page's own <style>. */
/* Layout: one three-column grid (2.5rem gutter) carries everything. Search over two columns with the key in the third; this week's task in three newspaper columns; then this week's changes, the top of the Guide and the task index on the same lines. Breakpoints: 960 and 640 only. Dark cloth ground by default; light paper on request. */
:root {
  --cloth: #141011;
  --leaf: #1d1718;
  --leaf-2: #251e1f;
  --ink: #efe7de;
  --ink-2: #c9bdb2;
  --ink-3: #a2958a;
  --rule: #3a3031;
  --red: #e2615a;
  --red-deep: #8e2a28;
  --red-hover: #a3322f;
  --red-wash: #3a1d1d;
  --up: #4cf08f;
  --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --gutter: 2.5rem;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --cloth: #f4efe8;
  --leaf: #fbf8f3;
  --leaf-2: #efe8de;
  --ink: #1d1718;
  --ink-2: #4a3f3c;
  --ink-3: #6d605a;
  --rule: #d9cec3;
  --red: #a8302b;
  --red-deep: #a8302b;
  --red-hover: #85231f;
  --red-wash: #f3e0dc;
  --up: #13773f;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-color: var(--rule) var(--cloth); }
body { margin: 0; background: var(--cloth); color: var(--ink); font-family: var(--font-body); font-size: 17px; line-height: 1.5; }
::selection { background: var(--red-deep); color: #fff; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; border-radius: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wrap {
  max-width: 76rem; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--gutter); }
@media (max-width: 960px) { .grid { grid-template-columns: minmax(0, 1fr); row-gap: 2rem; } }
.tabnum { font-variant-numeric: tabular-nums; }

/* Sample notice */
.notice { background: var(--leaf-2); color: var(--ink-2); font-size: 0.85rem; }
.notice .wrap { padding-block: 0.5rem; }

/* Masthead */
header.mast { border-bottom: 1px solid var(--rule); }
header.mast .wrap { display: flex; align-items: center; gap: 1.5rem; padding-block: 1.1rem; flex-wrap: wrap; }
.wordmark { display: flex; align-items: baseline; gap: 0.6rem; text-decoration: none; }
.wordmark b { font-family: var(--font-display); font-weight: 700; font-size: 1.6rem; letter-spacing: -0.01em; }
.wordmark span { font-family: var(--font-display); font-style: italic; color: var(--ink-3); font-size: 0.95rem; }
nav.main { display: flex; gap: 1.4rem; margin-left: auto; flex-wrap: wrap; align-items: center; }
@media (max-width: 960px) { header.mast .wrap { column-gap: 1rem; } nav.main { gap: 0.5rem 1rem; } }
.themebtn { order: 3; }
nav.main a.more { display: none; }
@media (max-width: 640px) { header.mast .wrap { gap: 0.8rem 1rem; } .themebtn { order: 0; margin-left: auto; } nav.main { margin-left: 0; width: 100%; gap: 0.5rem 1.2rem; } nav.main a.wide { display: none; } nav.main a.more { display: inline; } .field button { padding: 0.75rem 0.9rem; } .field input { font-size: 1.05rem; } }
nav.main a { text-decoration: none; color: var(--ink-2); font-weight: 500; }
nav.main a:hover { color: var(--ink); text-decoration: underline; }
.themebtn { background: none; border: 1px solid var(--rule); color: var(--ink-2); border-radius: 999px; padding: 0.3rem 0.8rem; font: inherit; font-size: 0.85rem; cursor: pointer; }
.themebtn:hover { color: var(--ink); border-color: var(--ink-3); }

/* First viewport */
.opening { padding-block: 3.2rem 2.4rem; }
.ask { grid-column: span 2; min-width: 0; }
@media (max-width: 960px) { .ask { grid-column: auto; } }
.ask h1 { font-family: var(--font-display); font-weight: 600; font-size: clamp(2.4rem, 5.2vw, 4.1rem); line-height: 1.04; letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
.ask p.lede { color: var(--ink-2); font-size: 1.15rem; max-width: 40rem; margin: 1rem 0 0; }

.finder { position: relative; margin-top: 2rem; }
.field { display: flex; align-items: center; gap: 0.9rem; background: var(--leaf); border: 1px solid var(--rule); border-radius: 12px; padding: 0.4rem 0.4rem 0.4rem 1.1rem; box-shadow: 0 10px 30px -18px rgba(0,0,0,0.7); transition: border-color .2s ease; }
.field:focus-within { border-color: var(--ink-3); }
.field svg { flex: none; color: var(--ink-3); }
.field input { flex: 1; min-width: 0; background: none; border: 0; outline: 0; color: var(--ink); font: inherit; font-size: 1.2rem; padding-block: 0.7rem; caret-color: var(--red); }
.field input::placeholder { color: var(--ink-3); }
.btn { flex: none; border: 0; background: var(--red-deep); color: #fff; font: inherit; font-weight: 600; border-radius: 9px; padding: 0.75rem 1.3rem; cursor: pointer; transition: transform .15s ease, background .2s ease; }
.btn:hover { background: var(--red-hover); }
.btn:active { transform: scale(0.97); }
.suggest { position: absolute; z-index: 5; left: 0; right: 0; top: calc(100% + 0.5rem); background: var(--leaf); border: 1px solid var(--rule); border-radius: 12px; padding: 0.4rem; box-shadow: 0 24px 50px -24px rgba(0,0,0,0.8); }
.suggest .grp { font-size: 0.78rem; color: var(--ink-3); padding: 0.6rem 0.75rem 0.25rem; }
.suggest ul { list-style: none; margin: 0; padding: 0; position: relative; }
.suggest li { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 1rem; padding: 0.55rem 0.75rem; border-radius: 8px; cursor: pointer; }
.suggest li span.c { color: var(--ink-3); font-size: 0.9rem; }
.suggest mark { background: var(--red-wash); color: var(--ink); border-radius: 3px; }
.pill { position: absolute; left: 0; right: 0; height: 0; border-radius: 8px; background: var(--leaf-2); transition: transform .28s cubic-bezier(.22,1,.36,1), height .2s ease; z-index: 0; }
.quick { display: flex; flex-wrap: wrap; gap: 0.5rem 1.1rem; margin-top: 1rem; color: var(--ink-3); font-size: 0.95rem; }
.quick a { color: var(--ink-2); }

/* The key (legend + filter) */
.key { min-width: 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule); padding: 1rem 0 0.9rem; align-self: end; }
.key h2 { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; margin: 0; }
.key p { color: var(--ink-3); font-size: 0.9rem; margin: 0.3rem 0 0.9rem; }
.key ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.1rem; }
.key button { width: 100%; display: flex; align-items: center; gap: 0.75rem; background: none; border: 1px solid transparent; color: var(--ink-2); font: inherit; font-size: 0.97rem; text-align: left; padding: 0.4rem 0.55rem; border-radius: 8px; cursor: pointer; }
.key button:hover { background: var(--leaf-2); color: var(--ink); }
.key button[aria-pressed="true"] { border-color: var(--red-deep); background: var(--red-wash); color: var(--ink); }
.key .count { margin-left: auto; color: var(--ink-3); font-size: 0.85rem; }
.sym { width: 22px; height: 22px; flex: none; color: var(--red); }
.sym.muted { color: var(--ink-3); }
.key .clear { margin-top: 0.6rem; font-size: 0.85rem; color: var(--ink-3); background: none; border: 0; padding: 0; text-decoration: underline; cursor: pointer; width: auto; }

/* This week's task bar */
.edition { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.edition .wrap { display: flex; align-items: center; gap: 0.4rem 2rem; flex-wrap: wrap; padding-block: 1rem; }
.edition h2 { font-family: var(--font-display); font-size: 1.55rem; font-weight: 600; margin: 0; }
.edition .meta { color: var(--ink-3); font-size: 0.95rem; }
.edition .meta a { color: var(--ink-2); }
.team { margin-left: auto; display: flex; align-items: center; gap: 0.6rem; color: var(--ink-2); }
.stepper { display: inline-flex; align-items: center; border: 1px solid var(--rule); border-radius: 999px; overflow: hidden; background: var(--leaf); }
.stepper button { background: none; border: 0; color: var(--ink-2); width: 2.1rem; height: 2.1rem; font: inherit; font-size: 1.1rem; cursor: pointer; }
.stepper button:hover { background: var(--leaf-2); color: var(--ink); }
.stepper output { min-width: 2.4rem; text-align: center; font-weight: 600; color: var(--ink); }

/* Entries */
.entries { padding-block: 2rem 3rem; }
.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--gutter); align-items: start; }
.col { min-width: 0; position: relative; }
.col + .col::before { content: ""; position: absolute; top: 0; bottom: 1.4rem; left: calc(var(--gutter) / -2); border-left: 1px solid var(--rule); }
@media (max-width: 960px) { .cols { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .cols { grid-template-columns: minmax(0, 1fr); } .col + .col::before { display: none; } }
.entry { padding: 0 0 1.4rem; margin: 0 0 1.4rem; border-bottom: 1px solid var(--rule); transition: opacity .3s ease, filter .3s ease; }
.entry.dim { opacity: 0.28; filter: saturate(0.4); }
.entry .top { display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); gap: 0 0.6rem; align-items: baseline; }
.rank { font-family: var(--font-display); font-weight: 600; font-size: 2.3rem; line-height: 1; color: var(--ink); font-variant-numeric: oldstyle-nums; }
.entry.first .rank { color: var(--red); }
.name { font-family: var(--font-display); font-weight: 700; font-size: 1.45rem; line-height: 1.15; }
.task { color: var(--ink-3); font-size: 0.9rem; margin-top: 0.15rem; }
.marks { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.8rem 0 0 3.2rem; }
.mark { display: inline-flex; align-items: center; gap: 0.35rem; background: none; border: 1px solid var(--rule); color: var(--ink-2); border-radius: 999px; padding: 0.2rem 0.6rem 0.2rem 0.35rem; font: inherit; font-size: 0.82rem; cursor: pointer; }
.mark:hover, .mark[aria-expanded="true"] { border-color: var(--ink-3); color: var(--ink); background: var(--leaf); }
.mark .sym { width: 18px; height: 18px; }
.price { margin: 0.8rem 0 0 3.2rem; font-size: 0.98rem; color: var(--ink-2); }
.price b { color: var(--ink); font-weight: 600; }
.price .yr { display: block; font-family: var(--font-display); font-size: 1.15rem; color: var(--ink); margin-top: 0.15rem; }
.verdict { margin: 0.6rem 0 0 3.2rem; font-family: var(--font-display); font-style: italic; color: var(--ink-2); font-size: 1.02rem; }
.note { margin: 0.8rem 0 0 3.2rem; background: var(--leaf); border: 1px solid var(--rule); border-radius: 10px; padding: 0.85rem 1rem; font-size: 0.92rem; overflow: hidden; display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s cubic-bezier(.22,1,.36,1), padding .35s ease, border-color .2s; }
.note > div { min-height: 0; }
.note[hidden] { display: none !important; }
.note .q { font-family: var(--font-display); font-size: 1rem; color: var(--ink); }
.note .q::before { content: "\201C"; } .note .q::after { content: "\201D"; }
.note .plain { color: var(--ink-2); }
.note .src { color: var(--ink-3); margin-top: 0.45rem; font-size: 0.85rem; }
.note.open { grid-template-rows: 1fr; }

/* Watch a tool */
.watch { margin: 0.7rem 0 0 3.2rem; font-size: 0.9rem; }
.watchbtn { display: inline-flex; align-items: center; gap: 0.4rem; background: none; border: 0; padding: 0.15rem 0; color: var(--ink-2); font: inherit; cursor: pointer; }
.watchbtn svg { width: 16px; height: 16px; color: var(--ink-3); }
.watchbtn span { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
.watchbtn:hover { color: var(--ink); }
.minform { display: flex; gap: 0.4rem; margin-top: 0.5rem; }
.minform input { flex: 1; min-width: 0; background: var(--leaf); border: 1px solid var(--rule); border-radius: 8px; color: var(--ink); font: inherit; font-size: 0.92rem; padding: 0.45rem 0.65rem; }
.minform input::placeholder { color: var(--ink-3); }
.minform input:focus { outline: 0; border-color: var(--ink-3); }
.minform .btn { padding: 0.45rem 0.85rem; font-size: 0.9rem; border-radius: 8px; }
.watch .small { color: var(--ink-3); font-size: 0.85rem; margin: 0.35rem 0 0; }
.watching { color: var(--ink-2); display: flex; gap: 0.4rem; align-items: baseline; }
.watching svg { width: 16px; height: 16px; color: var(--ink-2); flex: none; transform: translateY(2px); }

/* Bands below */
.band { border-top: 1px solid var(--rule); padding-block: 3rem; }
.band h2 { font-family: var(--font-display); font-weight: 600; font-size: 1.9rem; margin: 0 0 0.8rem; line-height: 1.1; text-wrap: balance; }
.band p { color: var(--ink-2); margin: 0.6rem 0 0; max-width: 34rem; }
.bandtop { align-items: end; margin-bottom: 1.8rem; }
.bandtop h2 { grid-column: span 2; margin: 0; }
@media (max-width: 960px) { .bandtop h2 { grid-column: auto; } }
.signup label { display: block; color: var(--ink-2); font-size: 0.95rem; }
.signup .minform { margin-top: 0.45rem; }
.row2 { margin-top: 2.6rem; }
.span2 { grid-column: span 2; min-width: 0; }
@media (max-width: 960px) { .span2 { grid-column: auto; } .row2 { margin-top: 2rem; } }
.index { margin: 0; padding: 0; list-style: none; font-size: 0.97rem; }
.index li { display: flex; gap: 0.5rem; padding: 0.22rem 0; break-inside: avoid; }
.index li a { text-decoration: none; color: var(--ink); }
.index li a:hover { text-decoration: underline; }
.index li .dots { flex: 1; border-bottom: 1px dotted var(--rule); transform: translateY(-0.3em); }
.cta { display: inline-block; margin-top: 1.2rem; color: var(--ink); font-weight: 600; }
.sub { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; margin: 0 0 0.4rem; padding-bottom: 0.6rem; border-bottom: 1px solid var(--rule); }
.ledger { list-style: none; margin: 0; padding: 0; }
.ledger li { display: grid; grid-template-columns: 3.4rem minmax(0, 1fr); gap: 0.8rem; align-items: baseline; padding: 0.7rem 0; border-bottom: 1px solid var(--rule); }
.ledger .who { min-width: 0; overflow-wrap: anywhere; }
.ledger .who b { display: block; font-family: var(--font-display); font-weight: 700; font-size: 1.12rem; line-height: 1.25; }
.ledger .who span { display: block; color: var(--ink-3); font-size: 0.88rem; }
.ledger .who span.say { color: var(--ink-2); font-size: 0.95rem; }
.ledger .kind { color: var(--ink-3); font-size: 0.88rem; }
.ledger .more { color: var(--ink-3); font-size: 0.9rem; }
.ledger.wide li { grid-template-columns: 4.6rem minmax(0, 1fr); }
.foot { color: var(--ink-3); font-size: 0.88rem; margin: 0.8rem 0 0; }
.foot a { color: var(--ink-2); }
.mv { display: inline-flex; align-items: center; gap: 0.25rem; font-weight: 600; font-size: 0.92rem; font-variant-numeric: tabular-nums; }
.mv svg { width: 11px; height: 11px; }
.mv.up, .mv.new { color: var(--up); }
.mv.out { color: var(--ink-3); }
.ledger.ones li { grid-template-columns: minmax(0, 1fr) auto; }

/* Top of the Guide */
.toplist { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: var(--gutter); }
@media (max-width: 640px) { .toplist { columns: 1; } }
.toplist li { break-inside: avoid; display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; gap: 0.6rem; align-items: baseline; padding: 0.6rem 0; border-bottom: 1px solid var(--rule); }
.toplist .r { font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; font-variant-numeric: oldstyle-nums; }
.toplist li:first-child .r { color: var(--red); }
.toplist b { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; display: block; line-height: 1.25; }
.toplist span.t { color: var(--ink-3); font-size: 0.86rem; }
.toplist .yr2 { color: var(--ink-2); font-size: 0.92rem; text-align: right; }

.ones-index { columns: 2; column-gap: var(--gutter); }
@media (max-width: 640px) { .ones-index { columns: 1; } }
.ones-index li { align-items: baseline; }
.ones-index b { font-family: var(--font-display); font-weight: 700; }
.ones-index .yr2 { color: var(--ink-3); font-size: 0.85rem; min-width: 5.6rem; text-align: right; }
footer { border-top: 1px solid var(--rule); color: var(--ink-3); font-size: 0.9rem; }
footer .wrap { padding-block: 2rem 3rem; display: flex; flex-wrap: wrap; gap: 0.8rem 2rem; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }
nav.main a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--red); text-decoration-thickness: 2px; text-underline-offset: 0.4em; }
.mv.down { color: var(--ink-3); font-weight: 500; }
.mv.same { color: var(--ink-3); font-weight: 400; }
.crumbs { color: var(--ink-3); font-size: 0.92rem; padding-top: 1.4rem; }
.crumbs a { color: var(--ink-2); }
.key .clear[hidden] { display: none; }