/* Solomon Posts / The Superintelligent Way — video companion pages.
   Google Sans, pastel sections, dark text (WCAG AA+), amber #F5A524 as the single accent. */

:root {
  --ink: #17181c;          /* body text, >= 14:1 on every pastel below */
  --ink-soft: #3d4049;     /* secondary text, >= 8:1 on every pastel below */
  --line: rgba(23, 24, 28, 0.12);
  --amber: #F5A524;
  --paper: #fffdf9;
  --cream: #fff6e3;
  --sky: #eaf3ff;
  --mint: #e8f6ef;
  --lilac: #f2edff;
  --rose: #ffeef0;
  --sand: #f6f1e8;
  --code-bg: #ffffff;
  --radius: 14px;
  --font: "Google Sans", "Google Sans Flex", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Google Sans Code", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }

a { color: var(--ink); text-decoration-color: var(--amber); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { background: rgba(245, 165, 36, 0.18); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 6vw, 3.2rem); margin: 0.3em 0 0.3em; }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); margin: 0 0 0.6em; }
h3 { font-size: 1.15rem; margin: 1.6em 0 0.5em; }
p { margin: 0 0 1em; }
code { font-family: var(--mono); font-size: 0.92em; background: rgba(23, 24, 28, 0.06); padding: 0.1em 0.35em; border-radius: 5px; }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.eyebrow { font-size: 0.85rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); margin: 0; }
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 40em; }

/* Hero */
.hero { background: var(--cream); padding: 40px 0 36px; border-bottom: 1px solid var(--line); }
.hero .crumbs { font-size: 0.9rem; margin: 0 0 18px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.9rem; font-weight: 500;
  padding: 6px 12px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
}
.pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin: 0; }
.hero-meta .updated { font-size: 0.9rem; color: var(--ink-soft); }
.video-slot {
  margin-top: 28px; aspect-ratio: 16 / 9; width: 100%; max-width: 880px;
  border-radius: var(--radius); background: #fff; border: 1px dashed rgba(23, 24, 28, 0.3);
  display: grid; place-items: center; text-align: center; color: var(--ink-soft); padding: 16px;
}
.video-slot iframe { width: 100%; height: 100%; border: 0; border-radius: var(--radius); }

/* Layout: sticky contents */
.layout { display: block; }
.toc {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 253, 249, 0.96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.toc ol { list-style: none; margin: 0; padding: 10px 20px; display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.toc ol::-webkit-scrollbar { display: none; }
.toc a {
  display: block; white-space: nowrap; text-decoration: none; font-size: 0.92rem;
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
}
.toc a[aria-current="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.toc .toc-title { display: none; }

@media (min-width: 1024px) {
  .layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 0; }
  .main .wrap { max-width: 1040px; margin: 0; }
  .toc { top: 0; align-self: start; height: 100vh; overflow-y: auto; border-bottom: 0; border-right: 1px solid var(--line); background: transparent; backdrop-filter: none; padding: 32px 0; }
  .toc .toc-title { display: block; padding: 0 20px; }
  .toc ol { flex-direction: column; gap: 2px; padding: 10px 12px; overflow: visible; }
  .toc a { border: 0; background: transparent; border-radius: 0; padding: 6px 10px; white-space: normal; color: var(--ink-soft); }
  .toc a[aria-current="true"] { background: transparent; color: var(--ink); font-weight: 700; }
  .main .wrap { padding: 0 40px; }
}

/* Sections */
.section { padding: 48px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 64px; }
@media (min-width: 1024px) { .section { scroll-margin-top: 0; padding: 64px 0; } }
.bg-cream { background: var(--cream); }
.bg-sky { background: var(--sky); }
.bg-mint { background: var(--mint); }
.bg-lilac { background: var(--lilac); }
.bg-rose { background: var(--rose); }
.bg-sand { background: var(--sand); }
.prose { max-width: 44em; }

.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 20px 0 24px; max-width: 44em; }
@media (min-width: 720px) { .tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.tile { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px; font-weight: 500; font-size: 0.95rem; }
.tile small { display: block; font-weight: 400; color: var(--ink-soft); margin-top: 4px; font-size: 0.85rem; line-height: 1.4; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; max-width: 52em; }
.steps > li { counter-increment: step; position: relative; padding: 0 0 8px 52px; margin-bottom: 20px; }
.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 36px; height: 36px; border-radius: 50%; background: #fff; border: 1px solid var(--line);
  display: grid; place-items: center; font-weight: 700;
}
.steps h3 { margin-top: 4px; }

/* Prompt blocks: prompt + explanation side by side on wide screens */
.prompt-pair { display: grid; gap: 16px; margin: 16px 0 28px; }
@media (min-width: 1100px) { .prompt-pair { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: start; } }
.explain { background: rgba(255, 255, 255, 0.6); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; font-size: 0.95rem; }
.explain p:last-child, .explain ul:last-child { margin-bottom: 0; }
.explain ul { padding-left: 1.1em; margin: 0 0 1em; }
.explain li { margin-bottom: 0.5em; }

.copybox { background: var(--code-bg); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.copybox-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 8px 8px 14px; border-bottom: 1px solid var(--line); background: #fbfaf7; }
.copybox-label { font-size: 0.82rem; font-weight: 500; color: var(--ink-soft); }
.copybox pre { margin: 0; padding: 14px; overflow-x: auto; font-family: var(--mono); font-size: 0.86rem; line-height: 1.55; white-space: pre-wrap; word-break: break-word; }
.copybox.tall pre { max-height: 520px; overflow-y: auto; }
.copy-btn {
  font: inherit; font-size: 0.88rem; font-weight: 500; cursor: pointer;
  padding: 6px 14px; border-radius: 999px; border: 1px solid rgba(23, 24, 28, 0.25); background: #fff; color: var(--ink);
  min-width: 82px; min-height: 36px;
}
.copy-btn:hover { border-color: var(--ink); }
.copy-btn.copied { background: var(--amber); border-color: var(--amber); color: var(--ink); }

/* Status labels */
.status { display: inline-block; font-size: 0.82rem; font-weight: 500; padding: 4px 10px; border-radius: 999px; border: 1px solid; vertical-align: middle; }
.status.testing { background: #fff; color: #6a4300; border-color: var(--amber); }
.status.verified { background: #fff; color: #135c38; border-color: #2e9e63; }
.status.failed { background: #fff; color: #8a1c2b; border-color: #d4495d; }
.status-note { font-size: 0.92rem; color: var(--ink-soft); }

/* Tables */
.table-wrap { overflow-x: auto; margin: 12px 0 24px; border: 1px solid var(--line); border-radius: 12px; background: #fff; max-width: 60em; }
table { border-collapse: collapse; width: 100%; font-size: 0.93rem; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { background: #fbfaf7; font-weight: 500; }
tr:last-child td { border-bottom: 0; }

figure.frame { margin: 8px 0 28px; max-width: 900px; }
figure.frame img { border-radius: 12px; border: 1px solid var(--line); }
figure.frame figcaption { font-size: 0.88rem; color: var(--ink-soft); margin-top: 8px; }

/* Downloads */
.downloads { display: grid; gap: 12px; grid-template-columns: 1fr; max-width: 52em; }
@media (min-width: 720px) { .downloads { grid-template-columns: 1fr 1fr; } }
.dl { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 6px; }
.dl strong { font-size: 1rem; }
.dl .meta { font-size: 0.88rem; color: var(--ink-soft); }
.dl a.btn, .dl span.btn { align-self: flex-start; margin-top: 6px; font-weight: 500; font-size: 0.92rem; padding: 7px 14px; border-radius: 999px; text-decoration: none; border: 1px solid rgba(23, 24, 28, 0.25); }
.dl span.btn { color: var(--ink-soft); border-style: dashed; }

/* Dated box */
.dated { background: #fff; border: 2px solid var(--amber); border-radius: var(--radius); padding: 18px 20px; max-width: 44em; }
.dated .stamp { font-size: 0.85rem; color: var(--ink-soft); margin: 0 0 10px; }
.deadlines { display: grid; gap: 10px; margin: 0 0 16px; }
@media (min-width: 720px) { .deadlines { grid-template-columns: 1fr 1fr; } }
.deadline { background: var(--cream); border-radius: 10px; padding: 12px 14px; }
.deadline b { display: block; font-size: 1.05rem; }
.dated ul { padding-left: 1.1em; margin: 0; }
.dated li { margin-bottom: 0.5em; }

/* Index cards */
.cards { display: grid; gap: 16px; grid-template-columns: 1fr; padding: 32px 0 56px; }
@media (min-width: 720px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card { display: block; text-decoration: none; background: var(--sky); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.card:hover { background: var(--sky); border-color: var(--amber); }
.card h2 { font-size: 1.25rem; margin: 6px 0 8px; }
.card p { color: var(--ink-soft); margin: 0 0 12px; font-size: 0.95rem; }
/* Home "Start here": four task cards, 2x2 from tablet up */
@media (min-width: 1100px) { .start-cards { grid-template-columns: repeat(2, 1fr); } }
.start-cards .card { background: #fff; transition: border-color .15s, transform .15s, box-shadow .15s; }
.start-cards .card:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(23, 24, 28, 0.08); }
.start-cards .card:focus-visible { border-color: var(--amber); border-radius: var(--radius); }
.start-cards .card h3 { font-size: 1.25rem; margin: 6px 0 8px; }
.start-cards .open { font-weight: 600; font-size: 0.95rem; color: var(--ink); text-decoration: underline; text-decoration-color: var(--amber); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.start-cards .card:hover .open, .start-cards .card:focus-visible .open { text-decoration-thickness: 3px; }
@media (prefers-reduced-motion: reduce) { .start-cards .card, .start-cards .card:hover { transition: none; transform: none; } }

/* Footer */
.footer { margin-top: auto; padding: 32px 0 48px; font-size: 0.95rem; color: var(--ink-soft); }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; }
.footer strong { color: var(--ink); }
.footer a { white-space: nowrap; }
.eyebrow code { text-transform: none; letter-spacing: 0; }

/* Round-up pages: numbers, charts, logos, sources */
.logos { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; margin: 4px 0 24px; padding: 0; list-style: none; }
.logos li { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 9px 14px; display: grid; place-items: center; }
.logos img { height: 20px; width: auto; max-width: 120px; }

.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 8px 0 28px; max-width: 60em; }
@media (min-width: 900px) { .stats { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.stat b { font-size: clamp(1.6rem, 5vw, 2.1rem); line-height: 1.1; letter-spacing: -0.02em; }
.stat span { font-size: 0.92rem; line-height: 1.4; }
.stat small { font-size: 0.8rem; color: var(--ink-soft); margin-top: auto; padding-top: 4px; }

.story { max-width: 44em; margin: 0 0 8px; }
.story h3 { margin-top: 1.4em; }
.tag { display: inline-block; font-size: 0.78rem; font-weight: 500; padding: 2px 8px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--ink-soft); vertical-align: middle; white-space: nowrap; }

.charts { display: grid; gap: 16px; margin: 16px 0 24px; max-width: 60em; }
@media (min-width: 900px) { .charts.two { grid-template-columns: 1fr 1fr; } }
.chart { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.chart-title { font-weight: 700; font-size: 1rem; margin: 0 0 2px; }
.chart-sub { font-size: 0.85rem; color: var(--ink-soft); margin: 0 0 14px; }
.bars { display: grid; gap: 9px; }
.bar-row { display: grid; grid-template-columns: minmax(0, 9.5em) minmax(0, 1fr) 4.6em; align-items: center; gap: 10px; font-size: 0.88rem; }
.bar-label { line-height: 1.25; }
.bar-track { height: 14px; position: relative; }
.bar-fill { position: absolute; top: 0; bottom: 0; left: 0; width: var(--w); background: #a9b4c8; border-radius: 0 4px 4px 0; }
.bar-row.hl .bar-label, .bar-row.hl .bar-val { font-weight: 700; }
.bar-row.hl .bar-fill { background: var(--ink); }
.bar-val { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
/* Diverging: zero line in the middle of the track */
.bars.div .bar-track::before { content: ""; position: absolute; left: var(--zero); top: -3px; bottom: -3px; width: 1px; background: rgba(23, 24, 28, 0.45); }
.bars.div .bar-fill { left: var(--zero); }
.bars.div .bar-fill.up { background: #2e7d57; }
.bars.div .bar-fill.down { left: auto; right: calc(100% - var(--zero)); border-radius: 4px 0 0 4px; background: #c2566a; }
.bars.div.neutral .bar-fill.up, .bars.div.neutral .bar-fill.down { background: #a9b4c8; }
.bars.div.neutral .bar-row.hl .bar-fill { background: var(--ink); }
.chart-note { font-size: 0.8rem; color: var(--ink-soft); margin: 14px 0 0; }

.timeline { list-style: none; margin: 8px 0 28px; padding: 0; max-width: 44em; border-left: 2px solid rgba(23, 24, 28, 0.15); }
.timeline li { position: relative; padding: 0 0 12px 20px; font-size: 0.95rem; display: grid; grid-template-columns: 5.4em minmax(0, 1fr); gap: 8px; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 7px; width: 10px; height: 10px; border-radius: 50%; background: #fff; border: 2px solid var(--ink); }
.timeline time { font-weight: 700; font-variant-numeric: tabular-nums; }
.timeline .lab { color: var(--ink-soft); }

.means { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; max-width: 44em; margin: 20px 0 24px; }
.means h3 { margin: 0 0 6px; font-size: 1rem; }
.means p:last-child, .means ul:last-child { margin-bottom: 0; }
.means ul { padding-left: 1.1em; margin: 0 0 1em; }

.platforms { display: grid; gap: 12px; margin: 8px 0 24px; max-width: 60em; }
@media (min-width: 720px) { .platforms { grid-template-columns: 1fr 1fr; } }
.platform { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; font-size: 0.95rem; }
.platform img { height: 20px; width: auto; margin: 2px 0 10px; }
.platform h3 { margin: 0 0 6px; font-size: 1.02rem; }
.platform p { margin: 0 0 0.6em; }
.platform p:last-child { margin: 0; }
.platform .when { font-size: 0.82rem; color: var(--ink-soft); }

.glance { display: grid; gap: 10px; margin: 8px 0 8px; max-width: 60em; grid-template-columns: 1fr; }
@media (min-width: 720px) { .glance { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1200px) { .glance { grid-template-columns: repeat(3, 1fr); } }
.glance a, .glance .item { display: flex; flex-direction: column; gap: 2px; text-decoration: none; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.glance a:hover { border-color: var(--ink); background: #fff; }
.glance .k { font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); }
.glance b { font-size: 1.5rem; letter-spacing: -0.02em; line-height: 1.15; }
.glance span { font-size: 0.92rem; color: var(--ink-soft); }

.sources { font-size: 0.88rem; max-width: 52em; margin: 8px 0 0; }
.sources summary { cursor: pointer; font-weight: 500; padding: 6px 0; }
.sources ul { margin: 6px 0 0; padding-left: 1.1em; }
.sources li { margin-bottom: 0.4em; }
.sources .src-date { color: var(--ink-soft); }

/* Video embed and chapters */
.video-slot.has-video { padding: 0; border: 0; background: #000; }
.watch { margin: 12px 0 0; font-weight: 500; }
.chapters { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 8px; max-width: 880px; }
.chapters a {
  display: inline-flex; gap: 6px; align-items: baseline; padding: 6px 12px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); color: var(--ink); text-decoration: none; font-size: 0.9rem;
}
.chapters a:hover, .chapters a:focus-visible { border-color: var(--amber); }
.chapters .t { font-variant-numeric: tabular-nums; color: var(--ink-soft); }

/* Fill-in placeholders inside prompts */
mark.ph { background: #ffe7b8; color: var(--ink); border-radius: 4px; padding: 0 3px; font-weight: 700; box-shadow: inset 0 -2px 0 var(--amber); }
.explain .copybox { margin: 4px 0 12px; }
.steps > li > p { margin: 6px 0 0; }
.steps > li ul { margin: 8px 0 0; padding-left: 1.1em; }
.copybox-label .status { margin-left: 6px; }