:root {
  color-scheme: light;
  --paper: #f6f2ea;
  --ink: #202722;
  --accent: #254d42;
  --muted: #61665f;
  --line: #c9c9bf;
  --surface: #fffdf8;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
body { margin: 0; font-size: 17px; line-height: 1.6; }
a { color: var(--accent); text-underline-offset: 4px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid #5f8375; outline-offset: 4px; }
.shell { width: min(1220px, calc(100% - 72px)); margin-inline: auto; }
.commons-nav { min-height: 84px; border-bottom: 1px solid var(--line); display: flex; gap: 24px; align-items: center; justify-content: space-between; }
.brand { font-family: Georgia, "Times New Roman", serif; font-size: 30px; font-weight: 700; letter-spacing: -.04em; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand span { font-weight: 400; }
.commons-nav nav { display: flex; align-items: center; gap: 32px; }
.commons-nav nav a { font-size: 15px; text-decoration: none; padding-block: 12px; color: var(--ink); }
.commons-nav nav a[aria-current] { box-shadow: 0 2px var(--accent); color: var(--accent); }
.commons-nav nav .nav-join { margin-left: 24px; padding: 10px 28px; color: white; }
.commons { padding-top: 52px; padding-bottom: 64px; }
h1, h2, h3 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; line-height: 1.12; letter-spacing: -.035em; margin-top: 0; }
h1 { font-size: clamp(44px, 5.4vw, 78px); margin-bottom: 26px; }
h2 { font-size: 44px; margin-bottom: 22px; }
h3 { font-size: 30px; margin-bottom: 14px; }
p { margin: 0 0 20px; }
.lead { font-size: 21px; line-height: 1.55; max-width: 1000px; }
.button, button { display: inline-flex; align-items: center; justify-content: center; background: var(--accent); border: 1px solid var(--accent); border-radius: 2px; color: white; font: inherit; font-size: 16px; font-weight: 550; padding: 13px 24px; min-height: 48px; cursor: pointer; text-decoration: none; }
.button:hover, button:hover { background: #173e34; text-decoration: none; }
.commons-actions, .text-action { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.commons-actions { margin-top: 28px; }
.text-action { display: inline-flex; gap: 10px; }
.text-action svg, .row-bottom svg, .detail-links svg { flex-shrink: 0; vertical-align: middle; margin-left: 6px; }
.commons-intro { display: grid; grid-template-columns: minmax(0, 2fr) minmax(290px, 1fr); gap: 60px; padding-bottom: 46px; }
.commons-intro h1 { font-size: clamp(46px, 5.2vw, 76px); }
.onboarding { border-left: 1px solid var(--line); padding-left: 40px; padding-top: 12px; }
.onboarding h2 { font-size: 38px; margin-bottom: 20px; }
.onboarding ol { list-style: none; padding: 0; margin: 0 0 26px; }
.onboarding li { display: flex; align-items: center; gap: 24px; padding: 20px 0; font-size: 18px; border-bottom: 1px solid var(--line); }
.onboarding li:last-child { border: 0; }
.onboarding li span { color: var(--accent); font-family: Georgia, serif; font-size: 31px; }
.onboarding p { font-size: 17px; }
.conversations { border-top: 1px solid var(--line); padding-top: 26px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
.section-heading h1, .section-heading h2 { font-size: 52px; margin-bottom: 16px; }
.filter-bar { margin: 20px 0 28px; }
.area-links { display: flex; flex-wrap: wrap; gap: 14px 28px; margin-bottom: 18px; }
.area-links a { padding: 6px 0; font-size: 15px; color: var(--muted); text-decoration: none; }
.area-links a[aria-current] { color: var(--accent); box-shadow: 0 2px var(--accent); font-weight: 650; }
.commons-filter { display: grid; grid-template-columns: minmax(0, 1fr) 175px auto; align-items: stretch; gap: 12px; }
input, textarea, select { border: 1px solid #aeb3aa; border-radius: 2px; background: var(--surface); color: var(--ink); padding: 12px 14px; font: inherit; font-size: 16px; min-height: 48px; max-width: 100%; width: 100%; min-width: 0; }
textarea { resize: vertical; line-height: 1.6; }
.empty { text-align: center; padding: 26px 12px 16px; }
.empty h2, .empty h3 { font-size: 32px; margin-bottom: 10px; }
.empty p { color: var(--muted); font-size: 17px; }
.conversation { padding: 28px 0; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
.conversation h3 a, .archive-entry h2 a { color: var(--ink); text-decoration: none; }
.conversation h3 a:hover, .archive-entry h2 a:hover { text-decoration: underline; }
.meta { color: var(--muted); font-size: 14px; line-height: 1.55; }
.conversation .meta { margin-bottom: 10px; }
.row-excerpt { max-width: 890px; color: var(--muted); }
.row-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.row-bottom a { font-size: 14px; }
.row-bottom .meta { margin: 0; }
.page-intro { margin: 12px 0 42px; }
.page-intro h1 { max-width: 1080px; }
.page-intro .lead { margin-top: 26px; }
.archive-entry { border-top: 1px solid var(--line); padding: 30px 0 20px; overflow-wrap: anywhere; }
.archive-entry > .meta { margin-bottom: 16px; }
.archive-entry h2 { font-size: 34px; margin-bottom: 18px; }
.status { color: var(--accent); }
.keywords { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.keywords span { margin-right: 10px; }
.note-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
.note-columns > div + div { border-left: 1px solid var(--line); padding-left: 30px; }
.note-columns h3 { font: 650 14px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: 0; color: var(--muted); margin-bottom: 12px; }
blockquote { margin: 0 0 12px; font-size: 18px; line-height: 1.6; }
.source-link { font-size: 14px; }
.idea-excerpt + .idea-excerpt { margin-top: 18px; }
.archive-bottom { display: flex; justify-content: space-between; gap: 24px; align-items: baseline; border-top: 1px solid var(--line); margin-top: 26px; padding-top: 20px; }
.archive-bottom .commons-actions { margin: 0; }
.archive-bottom .meta { font-size: 12px; margin: 0; }
.muted { color: var(--muted); }
.notice { border-left: 3px solid var(--accent); padding: 16px 20px; background: var(--surface); margin-top: 24px; }
.detail-links { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; font-size: 15px; }
.opening { margin: 38px 0 52px; }
.topic-title { max-width: 1050px; font-size: clamp(38px, 4.5vw, 64px); overflow-wrap: anywhere; }
.message { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 18px; line-height: 1.8; max-width: 880px; }
.guide-layout { display: grid; grid-template-columns: minmax(0, 2fr) minmax(270px, 1fr); gap: 70px; }
.piazza-guide { margin-bottom: 46px; padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.piazza-values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 34px; border-block: 1px solid var(--line); padding-block: 28px; margin-bottom: 50px; }
.piazza-values h2 { font-size: 27px; }
.piazza-values p { font-size: 16px; }
.piazza-prompts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 44px; margin-top: 30px; }
.piazza-prompt { padding-block: 28px; border-top: 1px solid var(--line); scroll-margin-top: 24px; }
.piazza-prompt h3 { font-size: 30px; line-height: 1.2; }
.piazza-prompt .prompt-invitation { color: var(--muted); font-size: 16px; }
.piazza-prompt .text-action { margin-top: 10px; }
.piazza-contract { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 30px; max-width: 860px; }
.guide-layout section { margin-bottom: 46px; }
.guide-layout h2 { font-size: 34px; }
.guide-rail { border-left: 1px solid var(--line); padding-left: 34px; }
.guide-rail h3 { font: 650 17px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; margin-top: 32px; letter-spacing: 0; }
.guide-rail > a { display: block; margin-bottom: 14px; overflow-wrap: anywhere; }
.guide-rail p { font-size: 16px; }
.reading-steps { padding-left: 24px; }
.reading-steps li { margin: 18px 0; padding-left: 6px; }
code { font-size: 14px; overflow-wrap: anywhere; white-space: normal; }
.commons-form { display: grid; gap: 12px; max-width: 740px; margin: 28px 0 42px; }
.commons-form label { font-size: 15px; font-weight: 650; margin-top: 6px; }
.commons-form p { margin: 4px 0; }
.commons-form button { width: fit-content; margin-top: 10px; }
.commons-form .check { display: flex; align-items: flex-start; gap: 12px; font-weight: 400; font-size: 16px; }
.check input { width: 20px; height: 20px; min-height: 20px; margin-top: 4px; flex-shrink: 0; }
.recovery { max-width: 740px; margin-bottom: 18px; }
summary { cursor: pointer; padding: 12px 0; }
.commons-footer { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 1fr)); gap: 40px; border-top: 1px solid var(--line); padding-block: 30px 38px; }
.commons-footer p { font-size: 13px; color: var(--muted); margin: 0 0 10px; }
.commons-footer .footer-brand { font-size: 16px; color: var(--ink); }
.commons-footer .footer-heading { font-weight: 650; color: var(--ink); }
.commons-footer nav { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; font-size: 14px; }
.commons-footer nav a { padding-block: 7px; }
.commons-footer a { text-decoration: none; }
.commons-footer a:hover, .commons-footer a[aria-current] { text-decoration: underline; }
.eyebrow { color: var(--accent); font-size: 14px; font-weight: 650; }
.audience-banner { width: fit-content; max-width: 100%; background: var(--accent); color: var(--surface); padding: 9px 14px; font-size: 14px; font-weight: 650; line-height: 1.5; }
.audience-note { font-size: 15px; max-width: 660px; }
.information-layout { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(230px, 1fr); gap: 70px; }
.information-copy { max-width: 780px; overflow-wrap: anywhere; }
.information-copy section { margin-bottom: 38px; scroll-margin-top: 24px; }
.information-copy h2 { font-size: 32px; margin-bottom: 18px; }
.information-copy li { margin-bottom: 14px; }
.information-copy address { font-style: normal; line-height: 1.9; }
.contact-email { font-size: clamp(20px, 3vw, 30px); }
.information-rail { border-left: 1px solid var(--line); padding-left: 32px; }
.information-rail nav { margin-bottom: 34px; }
.information-rail h2 { font: 650 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: 0; margin-bottom: 12px; }
.information-rail a { display: block; padding-block: 7px; font-size: 15px; }
.information-rail p { font-size: 14px; color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; transform: translateY(-150%); background: white; padding: 10px; z-index: 2; }
.skip-link:focus { transform: none; }
@media (max-width: 1040px) {
  .commons-nav { flex-wrap: wrap; padding-block: 16px; }
  .commons-nav nav { gap: 22px; }
  .commons-nav nav .nav-join { margin-left: 0; }
  .commons-intro { gap: 30px; grid-template-columns: minmax(0, 1.7fr) minmax(240px, 1fr); }
  .commons-intro h1 { font-size: 52px; }
  .onboarding { padding-left: 24px; }
  .onboarding h2 { font-size: 30px; }
  .onboarding li { font-size: 16px; gap: 16px; }
  .guide-layout { gap: 34px; }
}
@media (max-width: 720px) {
  .shell { width: calc(100% - 36px); }
  .commons-nav { gap: 12px; }
  .brand { font-size: 26px; }
  .commons-nav nav { width: 100%; justify-content: space-between; gap: 10px; }
  .commons-nav nav { flex-wrap: wrap; justify-content: flex-start; gap: 8px 16px; }
  .commons-nav nav a { font-size: 13px; }
  .commons-nav nav .nav-join { padding: 8px 12px; min-height: 42px; }
  .commons { padding-top: 34px; padding-bottom: 40px; }
  h1, .commons-intro h1 { font-size: clamp(37px, 8.5vw, 52px); }
  .commons-intro { grid-template-columns: minmax(0,1fr); gap: 32px; padding-bottom: 30px; }
  .lead { font-size: 18px; }
  .commons-actions { gap: 16px; margin-top: 22px; }
  .commons-actions .button { width: 100%; }
  .onboarding { border-left: 0; border-top: 1px solid var(--line); padding: 26px 0 0; }
  .onboarding h2 { font-size: 30px; margin-bottom: 10px; }
  .onboarding ol { margin-bottom: 12px; }
  .onboarding li { padding: 12px 0; }
  .section-heading { display: block; }
  .section-heading h1, .section-heading h2 { font-size: 39px; }
  .section-heading .text-action { margin-bottom: 10px; }
  .area-links { gap: 8px 22px; }
  .commons-filter { grid-template-columns: minmax(0, 1fr) auto; }
  .commons-filter input[type=search] { grid-column: 1 / -1; }
  .commons-filter select { width: 100%; }
  .empty { padding-inline: 0; }
  .empty h2, .empty h3 { font-size: 28px; }
  .conversation h3, .archive-entry h2 { font-size: 29px; }
  .row-bottom { align-items: flex-start; }
  .row-bottom a { flex-shrink: 0; }
  .page-intro { margin-top: 0; margin-bottom: 32px; }
  .note-columns { grid-template-columns: minmax(0,1fr); gap: 24px; }
  .note-columns > div + div { border: 0; padding-left: 0; }
  .archive-bottom { flex-direction: column; gap: 20px; }
  .archive-bottom .commons-actions { gap: 16px; }
  .guide-layout { grid-template-columns: minmax(0,1fr); gap: 20px; }
  .piazza-values, .piazza-prompts { grid-template-columns: minmax(0,1fr); gap: 16px; }
  .piazza-values { margin-bottom: 32px; }
  .piazza-values h2, .piazza-prompt h3 { font-size: 27px; }
  .guide-rail { border-left: 0; border-top: 1px solid var(--line); padding: 28px 0 0; }
  .guide-layout h2 { font-size: 30px; }
  .commons-form button { width: 100%; }
  .commons-footer { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
  .footer-identity { grid-column: 1 / -1; }
  .information-layout { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .information-rail { border: 0; padding: 0; }
  .information-rail nav { margin-bottom: 20px; }
  .information-rail a { display: inline-block; margin-right: 14px; }
  .information-copy h2 { font-size: 29px; }
}