/* suffering.css: styles for "The Optimal Amount of Suffering" (essay + interactive analysis).
 *
 * Color rules: FSI values (and other good/bad numbers) are green above zero and red below;
 * team lines wear team colors; comparison lines and reference marks are gray.
 */

/* ---- 1. Tokens and page ------------------------------------------------------------------ */
:root {
  --bg: #FDFDF8;
  --ink: #20201d;
  --muted: #615f55;
  --line: #d9d7cd;
  --panel: #f3f2eb;
  --red: #841617;        /* the site's accent (links, footnotes): OU crimson */
  --blue: #007ac1;       /* Thunder blue, used for focus rings */
  --pos: #349d62;        /* positive FSI: bars, cells, swatches */
  --pos-ink: #1d6b3a;    /* positive FSI as text (5.8:1 on the panel) */
  --neg: #902731;        /* negative FSI, marks and text (7.4:1 on the panel) */
  --neutral: #e7e6dc;    /* zero */
  --mono: 'Source Code Pro', monospace;
  --serif: 'EB Garamond', Georgia, serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 21px/1.6 var(--serif); }
a { color: var(--red); text-underline-offset: 3px; }
main { max-width: 1040px; margin: auto; padding: 35px 24px 90px; }
.reading { max-width: 660px; margin: auto; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

/* Sign colors for text. */
.pos { color: var(--pos-ink); }
.neg { color: var(--neg); }
.muted { color: var(--muted); }

/* ---- Site nav and footer: the same as index.html and writing.html ------------------------- */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(253, 253, 248, .95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #d0cfc8;
  box-shadow: 0 3px 0 -1px rgba(181, 180, 173, .4);
}
.nav-inner { max-width: 980px; margin: 0 auto; padding: .8rem 2rem; display: flex; align-items: center; justify-content: space-between; }
.nav-name { font: 500 1rem var(--serif); color: #1c1c1c; text-decoration: none; }
.nav-name:hover { color: var(--red); }
.nav-links { display: none; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  font: .7rem var(--mono); letter-spacing: .07em; color: #3d3d3d; text-decoration: none;
  position: relative; transition: color .15s;
}
/* The Writing tab is marked as the current section. */
.nav-links a:hover, .nav-links a[aria-current] { color: #1c1c1c; }
.site-footer {
  border-top: 1px solid #d0cfc8; max-width: 680px; margin: 0 auto; padding: 2rem 2rem 2.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.footer-name { font: .88rem var(--serif); color: #3d3d3d; }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a { font: .67rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: #3d3d3d; text-decoration: none; }
.footer-links a:hover { color: #1c1c1c; }
@media (max-width: 720px) {
  .site-footer { flex-direction: column; gap: 1rem; align-items: flex-start; }
}
/* The nav links and Get In Touch fold into a menu button, the same as the
   other pages. The global `select, button` rule above sets padding, border,
   and size, so this undoes each. */
.nav-inner { position: relative; }
.nav-menu-cta { display: none; }
.nav-toggle {
  display: block; position: relative; width: 44px; height: 44px; max-width: none;
  margin: -8px -11px -8px auto;
  padding: 0; border: 0; background: none; color: #1c1c1c; cursor: pointer;
}
.nav-toggle span {
  position: absolute; left: 11px; top: 21px;
  width: 22px; height: 1.5px; border-radius: 1px;
  background: currentColor;
  transition: transform .32s cubic-bezier(.65, 0, .35, 1), width .25s ease, opacity .2s ease;
}
.nav-toggle span:nth-child(1) { transform: translateY(-6.5px) rotate(0); }
.nav-toggle span:nth-child(2) { width: 11px; background: var(--red); }
.nav-toggle span:nth-child(3) { transform: translateY(6.5px) rotate(0); }
/* Mouse only: a tap leaves :hover stuck on a touch screen. */
@media (hover: hover) { .nav-toggle:hover span:nth-child(2) { width: 22px; } }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(0) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { width: 0; opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(0) rotate(-45deg); }
.nav-toggle:focus-visible { outline: 2px solid var(--red); outline-offset: -4px; }
@media (prefers-reduced-motion: reduce) { .nav-toggle span { transition: none; } }
.site-nav.is-open .nav-links {
  display: flex; flex-direction: column;
  position: absolute; top: calc(100% + 1px); right: 2rem; width: 15rem;
  padding: .25rem 1.25rem 1rem;
  background: var(--bg);
  border: 1px solid #d0cfc8; border-top: 0;
  box-shadow: 0 12px 20px -14px rgba(28, 28, 28, .3);
}
.site-nav.is-open .nav-links a { display: block; padding: .8rem 0; font-size: .78rem; border-bottom: 1px solid #d0cfc8; }
.site-nav.is-open .nav-links li:has(+ .nav-menu-cta) a { border-bottom: none; }
.site-nav.is-open .nav-menu-cta { display: block; margin-top: .6rem; }
.site-nav.is-open .nav-menu-cta a {
  border: 1px solid #1c1c1c; text-align: center; color: #1c1c1c;
  font-size: .7rem; letter-spacing: .09em; text-transform: uppercase;
}
.site-nav.is-open .nav-menu-cta a:hover { background: var(--red); border-color: var(--red); color: var(--bg); }
@media (max-width: 720px) {
  .site-nav.is-open .nav-links { left: 0; right: 0; width: auto; padding: .25rem 2rem .75rem; border-width: 0 0 1px; }
  .site-footer { padding-bottom: calc(2.75rem + env(safe-area-inset-bottom)); }
  .footer-links { display: grid; grid-template-columns: repeat(3, max-content); gap: .2rem 1.75rem; }
  .footer-links a { display: inline-block; padding: .4rem 0; }
}
@media (max-width: 340px) {
  .nav-inner { padding-left: 1rem; padding-right: 1rem; }
  .site-nav.is-open .nav-links { padding-left: 1rem; padding-right: 1rem; }
}

/* ---- 2. Type ----------------------------------------------------------------------------- */
.eyebrow, .caption, .byline, summary, label, select, button, table,
.event-date, .stats, .legend, .validation { font-family: var(--mono); }
/* WHY nothing under 11px: captions and labels carry real content (who was compared, what a
 * line means), and 10px monospace is a squint on a phone. */
.eyebrow { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
h1 { font-size: clamp(42px, 7vw, 68px); line-height: 1.03; letter-spacing: -.035em; font-weight: 500; margin: 24px 0; }
h2 { font-size: 32px; font-weight: 500; line-height: 1.2; margin: 40px 0 20px; }
h3 { font-size: 24px; font-weight: 500; margin: 30px 0 15px; }
h4 { font: 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .08em; margin: 22px 0 8px; }
header.reading { padding-top: 15px; }
.dek { font-size: 25px; line-height: 1.3; color: var(--muted); }
.byline { font-size: 12px; line-height: 1.6; margin: 25px 0 45px; }
.prose p { margin: 0 0 24px; }
blockquote { font-size: 27px; line-height: 1.35; font-style: italic; margin: 0 0 35px; padding-left: 24px; border-left: 2px solid var(--red); }
blockquote cite { display: block; font: 13px/1.6 var(--mono); margin-top: 14px; font-style: normal; }
.caption { font-size: 13px !important; line-height: 1.65 !important; color: var(--muted); margin: 15px 0 0 !important; }
.part { margin-top: 70px; margin-bottom: 6px; border-top: 2px solid var(--ink); padding-top: 14px; }
.part h2 { font-size: 40px; margin: 6px 0 0; }

/* ---- 3. Figures, charts and legends -------------------------------------------------------- */
.figure { margin: 38px 0; background: var(--panel); padding: 30px; border: 1px solid #e2e0d6; }
.figure h2 { margin: 8px 0 18px; }
.figure h3 { margin-top: 28px; }
.figure p { font-size: 18px; line-height: 1.5; }
svg { width: 100%; height: auto; display: block; }
svg text { font: 12px var(--mono); fill: #615f55; }
/* Labels written onto a chart (events, gaps): ink, or the sign's color for a signed value. */
svg text.note, svg text.avg { fill: var(--ink); }
svg text.neg { fill: var(--neg); }
svg text.pos { fill: var(--pos-ink); }
svg .hit { fill: transparent; }
.legend { font-size: 12px; display: flex; gap: 22px; flex-wrap: wrap; margin: 12px 0; }
/* A legend key: a short line in the series color, with the label in ink. */
.legend .key { display: inline-flex; align-items: center; gap: 8px; }
.legend .key::before { content: ''; width: 22px; border-top: 3px solid var(--key, var(--muted)); }
.legend .key.dashed::before { border-top-style: dashed; border-top-width: 2px; }
/* Charts draw at their container's width (suffering-visuals.js), so this scroll is only a
 * safety net for very narrow screens. */
#team-chart, #ou-chart, #thunder-chart, .did-chart, .forecast-chart, .did-checks { overflow-x: auto; }

/* The label a tap on a chart point or heatmap cell opens (tooltips need a mouse). */
.tap-tip {
  position: absolute; z-index: 150; max-width: 280px; padding: 6px 9px;
  background: var(--ink); color: var(--bg); font: 12px/1.45 var(--mono); pointer-events: none;
}

/* The −10 to +10 scale at the top of the essay, red through gray to green. */
.scale { height: 14px; margin: 24px 0 10px; background: linear-gradient(90deg, var(--neg), var(--neutral) 50%, var(--pos)); }
.scale-labels { display: flex; justify-content: space-between; font: 12px/1.5 var(--mono); }
.scale-labels span { flex: 1; }
.scale-labels span:nth-child(2) { text-align: center; }
.scale-labels span:last-child { text-align: right; }

/* ---- 4. The recipe, "why" asides and the formula ------------------------------------------- */
ol.recipe { padding-left: 26px; margin: 0 0 24px; }
ol.recipe > li { margin-bottom: 16px; padding-left: 4px; }
ol.recipe > li::marker { font: 15px var(--mono); color: var(--red); }
details.why { border: 0; border-left: 2px solid var(--line); margin: 8px 0 4px; padding: 0 0 0 14px; }
details.why summary { font-size: 13px; color: var(--muted); }
details.why summary:hover { color: var(--ink); }
details.why[open] { border-left-color: var(--red); }
details.why p { font-size: 17px; line-height: 1.55; margin: 10px 0 6px; }
.formula-card { background: #f1efe5; border-left: 3px solid var(--blue); padding: 24px 26px; margin-top: 30px; margin-bottom: 20px; }
.formula-words { display: flex; flex-wrap: wrap; gap: 6px 13px; font-size: 25px; line-height: 1.45; margin: 16px 0; }
.formula-words strong { width: 100%; font-size: 35px; font-weight: 500; }
.formula-words span { white-space: nowrap; }
.math-card { padding: 22px 24px; margin: 20px 0; background: #f1efe5; }
.math-equation { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 29px; line-height: 1.4; margin: 18px 0 24px; }
.math-equation b { font-weight: 500; }
.math-card p { margin: 8px 0 0; font-size: 17px; }

/* ---- 5. Disclosures and tables ---------------------------------------------------------------- */
details { border-top: 1px solid var(--line); margin: 22px 0; padding-top: 18px; }
.figure details { margin-bottom: 12px; }
summary { font-size: 13px; line-height: 1.6; cursor: pointer; }
details p { font-size: 17px; margin: 18px 0; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 12px; line-height: 1.6; }
th, td { border-bottom: 1px solid var(--line); padding: 10px; vertical-align: top; }
.table-scroll { overflow: auto; max-width: 100%; }

/* ---- 6. The OU chart and its events ---------------------------------------------------------- */
.ou-contrast { display: flex; align-items: center; justify-content: space-between; gap: 20px; background: #eae8dd; padding: 22px; margin: 24px 0; }
.ou-contrast span { display: block; font: 12px/1.6 var(--mono); }
.ou-contrast strong { display: block; font-size: 40px; font-weight: 500; }
.ou-contrast .assumption-arrow { max-width: 300px; text-align: center; color: var(--muted); }
.event { display: grid; grid-template-columns: 82px 50px 1fr; gap: 10px; border-top: 1px solid var(--line); padding: 11px 0; font-size: 17px; line-height: 1.3; }
.event-date { font-size: 12px; padding-top: 4px; }
.event strong { font: 18px var(--mono); }

/* ---- 7. Departure studies ---------------------------------------------------------------------- */
/* WHY align to the bottom: a label that wraps to two lines on a phone would otherwise push its
 * number below its neighbors'. */
.did-arithmetic {
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: end; gap: 16px;
  margin: 28px 0; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
/* Riley's headline is one number per season, not a subtraction. */
.did-arithmetic.seasons { grid-template-columns: 1fr 1fr; }
.did-arithmetic > b { padding-bottom: 6px; }
.did-arithmetic span { display: block; font: 12px/1.6 var(--mono); }
.did-arithmetic strong { font-size: 38px; font-weight: 500; white-space: nowrap; }
.did-arithmetic small { font: 12px var(--mono); margin-left: 5px; }
.did-arithmetic > b { font-size: 23px; font-weight: 400; }
.figure .did-story { font-size: 18px; line-height: 1.5; max-width: 710px; }
.did-checks p { font-size: 17px; line-height: 1.5; }
.screen-list, .donor-events { padding-left: 18px; margin: 12px 0 0; }
.screen-list li { font-size: 15px; line-height: 1.45; margin-bottom: 6px; }
/* The Riley screen lists 64 programs, so it flows into two columns (one on phones). */
.screen-list.columns { columns: 2; column-gap: 28px; }
.screen-list.columns li { break-inside: avoid; }
.donor-events li { font-size: 16px; line-height: 1.45; margin-bottom: 10px; }
.donor-events .event-date { margin: 0 4px; }
.donor-events i { color: var(--muted); font-size: 14px; }
.recruit-strip {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; text-align: center; margin-top: 6px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 12px 0;
}
.recruit-strip span, .recruit-strip small { display: block; font: 12px/1.5 var(--mono); color: var(--muted); }
.recruit-strip strong { display: block; font-size: 30px; font-weight: 500; line-height: 1.3; }
.recruit-strip .flag { background: #ebe8dc; outline: 1px solid #d9d5c5; }

/* ---- 8. Suffer briefly ------------------------------------------------------------------------- */
.suffering-panels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 22px 0 10px; }
.panel { background: var(--bg); border: 1px solid var(--line); padding: 14px 12px 10px; }
.panel h4 { margin: 0 0 8px; color: var(--ink); }
.panel svg text.small { font-size: 11px; }
.panel dl { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 10px 0 0; }
.panel dt { font: 11px/1.4 var(--mono); color: var(--muted); }
.panel dd { margin: 2px 0 0; font-size: 20px; }

/* ---- 9. Explorer, heatmap and forecast --------------------------------------------------------- */
.controls { display: flex; flex-wrap: wrap; gap: 15px; margin: 20px 0; }
.control { display: flex; flex-direction: column; gap: 5px; min-width: 140px; flex: 1; }
label { font-size: 12px; }
select, button { font-size: 13px; padding: 10px; border: 1px solid #bbb8ad; color: var(--ink); background: var(--bg); max-width: 100%; cursor: pointer; }
#filter-note:empty { display: none; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: 24px 0; gap: 12px; }
.stats span { display: block; font-size: 12px; }
.stats strong { display: block; font: 32px var(--serif); }
#cohort-note { font-size: 12px !important; margin-top: 6px !important; }
.heat-key { display: flex; align-items: center; gap: 8px; font: 11px var(--mono); color: var(--muted); margin: 6px 0 10px; }
.heat-key i { display: block; width: 140px; height: 10px; background: linear-gradient(90deg, var(--neg), var(--neutral) 50%, var(--pos)); }
.heat-key span:last-child { margin-left: 14px; }
.heat { font-size: 11px; white-space: nowrap; }
.heat td { text-align: center; padding: 7px 4px; min-width: 52px; border: 3px solid var(--panel); }
.heat th { padding: 4px; font-weight: 400; }
.heat th:first-child { position: sticky; left: 0; background: var(--panel); z-index: 1; }
.team-link { border: 0; background: none; padding: 5px; text-align: left; font: 11px var(--mono); }
.team-link:hover { text-decoration: underline; }
.forecast-head { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.forecast-head p { margin: 0; }
.forecast-number { font-size: 62px; line-height: 1.2; }
.validation { display: flex; gap: 20px; background: #eae8dd; padding: 14px; font-size: 12px; margin-top: 10px; }
.validation span { flex: 1; }
.validation b { font-size: 20px; display: block; white-space: nowrap; }

/* ---- 10. Photos, footnotes and footer ---------------------------------------------------------- */
.photo { margin: 10px auto 34px; text-align: center; }
.photo img {
  display: block; width: 100%; max-width: 330px; height: auto; margin: 0 auto;
  border: 1px solid #e2e0d6; box-shadow: 0 6px 22px rgba(32, 32, 29, .12); background: #fff;
}
.photo figcaption { font: 13px/1.7 var(--mono); color: var(--muted); max-width: 440px; margin: 14px auto 0; }

/* Intro strip: two blown 3–1 leads, one box per game in the winner's color. The dashed line in
 * the narrow fifth column marks where each series turned (after Game 4). Warriors wear their
 * gold here, not the navy the charts use, so they can't be mistaken for Thunder blue. */
.series-strip { margin-top: 4px; margin-bottom: 34px; }
.series + .series { margin-top: 20px; }
.series-title { font-size: 18px; line-height: 1.4; margin: 0 0 8px; }
.series-title b { font-weight: 600; }
.games { display: grid; grid-template-columns: repeat(4, 1fr) 14px repeat(3, 1fr); gap: 4px; list-style: none; margin: 0; padding: 0; }
.games::before { content: ''; grid-column: 5; grid-row: 1; justify-self: center; border-left: 2px dashed var(--muted); }
.games li:nth-child(5) { grid-column: 6; }
.games li { background: var(--team); color: #fff; text-align: center; padding: 11px 2px; font: 500 15px/1.2 var(--mono); letter-spacing: .04em; box-shadow: inset 0 0 0 1px rgba(32, 32, 29, .1); }
.games .okc { --team: #007AC1; }
.games .gsw { --team: #FFC72C; color: var(--ink); }
.games .cle { --team: #860038; }
.games.axis { margin-top: 8px; }
.games.axis::before { content: none; }
.games.axis li { background: none; box-shadow: none; padding: 0; font: 12px/1.4 var(--mono); color: var(--muted); }
sup.fn { font-size: .62em; line-height: 0; vertical-align: super; }
/* In small monospace text (captions, the opening quote's credit), a .62em marker is 7px. */
.caption sup.fn, figcaption sup.fn, cite sup.fn { font-size: .85em; }
sup.fn a { color: var(--red); text-decoration: none; padding: 0 .05em; font-family: var(--mono); }
sup.fn a:hover { text-decoration: underline; }
li[id^="fn"], a[id^="ref"] { scroll-margin-top: 70px; }
/* Footnote previews (footnotes.js): hover a note number, or tap it on a phone, to read
   the note in place. Long notes scroll inside the card. */
.fn-card {
  position: absolute; z-index: 120;
  width: min(24rem, calc(100vw - 2rem)); max-height: min(20rem, 60vh); overflow-y: auto;
  padding: .8rem 1rem .85rem 2.3rem;
  background: var(--bg);
  border: 1px solid #d0cfc8; border-top: 2px solid var(--red);
  box-shadow: 0 12px 24px -14px rgba(28, 28, 28, .35);
  font-size: 14px; line-height: 1.55; color: var(--muted);
  overflow-wrap: anywhere;
  animation: fnIn .16s ease-out;
}
.fn-card[hidden] { display: none; }
.fn-card-num { position: absolute; left: .85rem; top: .95rem; font: 11px var(--mono); color: var(--red); }
.fn-card cite { font-style: italic; }
.fn-card-jump { display: inline-block; margin-top: .45rem; font: 10.5px var(--mono); letter-spacing: .07em; color: var(--red); }
@keyframes fnIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .fn-card { animation: none; } }
.notes-block { margin-top: 50px; }
.notes-block h2 { font-size: 24px; margin: 0 0 18px; }
ol.notes { list-style: none; counter-reset: note; padding: 0; margin: 0; font-size: 15px; line-height: 1.55; color: var(--muted); }
ol.notes li { counter-increment: note; position: relative; padding-left: 32px; margin-bottom: 13px; }
ol.notes li::before { content: counter(note); position: absolute; left: 0; top: 2px; width: 22px; text-align: right; font: 12px var(--mono); color: var(--red); }
ol.notes cite { font-style: italic; }
ol.notes a { word-break: break-word; }
ol.notes li:target { background: #f3ede0; }
.backref { font-family: var(--mono); color: #aaa79b; text-decoration: none; margin-left: 4px; }
.backref:hover { color: var(--red); }
.downloads { font: 13px/1.8 var(--mono); }

/* ---- 11. Phones --------------------------------------------------------------------------------- */
@media (max-width: 600px) {
  body { font-size: 20px; }
  main { padding: 25px 18px 60px; }
  h1 { font-size: 46px; }
  .part h2 { font-size: 32px; }
  .figure { padding: 21px 14px; margin-left: -4px; margin-right: -4px; }
  .figure h2 { font-size: 28px; }
  /* Charts are drawn at phone width, one unit per pixel, so 13px here is 13px on screen. */
  svg text { font-size: 13px; }
  .formula-card, .math-card { padding: 20px; }
  .formula-words { font-size: 22px; }
  .math-equation { font-size: 24px; gap: 8px; }
  .event { grid-template-columns: 70px 42px 1fr; gap: 6px; font-size: 15px; }
  .ou-contrast { gap: 12px; padding: 16px; flex-wrap: wrap; }
  .ou-contrast .assumption-arrow { order: 3; max-width: none; width: 100%; text-align: left; }
  .ou-contrast > div { flex: 1; }
  .ou-contrast strong { font-size: 32px; }
  .did-arithmetic { gap: 6px; }
  .did-arithmetic strong { font-size: 25px; }
  .did-arithmetic span, .did-arithmetic small { font-size: 11px; }
  .did-arithmetic small { margin-left: 3px; }
  .recruit-strip { grid-template-columns: repeat(5, minmax(58px, 1fr)); overflow-x: auto; }
  .recruit-strip strong { font-size: 22px; }
  .suffering-panels { grid-template-columns: 1fr; }
  .screen-list.columns { columns: 1; }
  .stats strong { font-size: 27px; }
  .control { min-width: 120px; }
  /* 16px keeps iOS from zooming the page when a menu is tapped. */
  select { font-size: 16px; }
  /* Team names wrap onto two lines, so the sticky name column leaves room for the seasons. */
  .heat th:first-child, .heat .team-link { white-space: normal; }
  .heat th:first-child { min-width: 92px; max-width: 112px; }
  th, td { padding: 8px; }
  .validation { flex-direction: column; gap: 12px; }
  .forecast-number { font-size: 52px; }
  .photo img { max-width: 260px; }
  ol.notes { font-size: 14px; }
}