:root {
  --paper: #f6f1e7; --paper2: #efe7d8; --card: #fbf8f2; --ink: #1f1b16; --ink2: #3b342c;
  --muted: #6e655a; --rule: #dccfbb; --accent: #a8502b; --moss: #476552; --live: #b23a2a;
  --serif: "Newsreader", Georgia, "Times New Roman", serif; --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --measure: 38rem;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --paper: #15120e; --paper2: #1d1915; --card: #1f1a15; --ink: #eee5d6; --ink2: #d8cdbb;
  --muted: #a99d8c; --rule: #3a3229; --accent: #e08a5f; --moss: #93b39c; --live: #ef7a66; } }
:root[data-theme="dark"] {
  --paper: #15120e; --paper2: #1d1915; --card: #1f1a15; --ink: #eee5d6; --ink2: #d8cdbb;
  --muted: #a99d8c; --rule: #3a3229; --accent: #e08a5f; --moss: #93b39c; --live: #ef7a66; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--serif);
  font-size: 1.16rem; line-height: 1.62; font-optical-sizing: auto; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
img { display: block; }
main { padding: 0 16px; }

.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .6rem 16px; background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--rule); }
.brand { display: inline-flex; align-items: center; gap: .5rem; color: var(--ink); text-decoration: none;
  font-family: var(--mono); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; }
.top nav { display: flex; gap: 1.1rem; overflow-x: auto; }
.top nav a { font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; color: var(--muted); text-decoration: none; white-space: nowrap; }
.top nav a:hover { color: var(--ink); }

.eyebrow { font-family: var(--mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 .8rem; }
.center { text-align: center; }

.hero { max-width: 46rem; margin: 0 auto; padding: 4.5rem 0 2rem; text-align: center; }
.hero .logo img { margin: 0 auto 1.4rem; }
.hero h1 { font-weight: 400; font-size: clamp(2.5rem, 7vw, 4.4rem); line-height: 1.02; letter-spacing: -.02em; margin: 0 0 1.1rem; }
.dek { font-style: italic; font-size: clamp(1.15rem, 2.6vw, 1.4rem); color: var(--ink2); max-width: 34rem; margin: 0 auto 1rem; line-height: 1.45; }
.byline { font-family: var(--mono); font-size: .78rem; color: var(--muted); letter-spacing: .03em; }
.fig { margin: 2.6rem auto 0; max-width: 560px; }
.strata { width: 100%; height: auto; }
.strata .band path { transition: transform .25s ease, filter .25s; transform-origin: center; }
.strata .band:hover path, .strata .band:focus path { filter: brightness(1.12); }
.strata text { fill: #fbf4e8; font-family: var(--mono); }
.strata .sn { font-size: 13px; opacity: .8; }
.strata .sl { font-size: 15px; font-family: var(--serif); font-style: italic; }
.strata .st { font-size: 11.5px; letter-spacing: .03em; opacity: .9; }
figcaption { font-family: var(--mono); font-size: .72rem; color: var(--muted); margin-top: .8rem; }

.prose { max-width: var(--measure); margin: 0 auto; }
.intro { padding: 2.5rem 0 1rem; }
.intro p:first-child::first-letter { float: left; font-size: 3.7em; line-height: .86; padding: .06em .1em 0 0; color: var(--accent); }
.intro p:nth-child(2) { font-style: italic; font-size: 1.3rem; }

.pieces { padding: 3rem 0 1rem; }
.piece { max-width: 58rem; margin: 0 auto; padding: 3.2rem 0 2.6rem; border-top: 1px solid var(--rule); }
.pn { display: flex; gap: .9rem; align-items: baseline; font-family: var(--mono); color: var(--accent); font-size: .85rem; letter-spacing: .08em; }
.pn .layer { color: var(--muted); text-transform: uppercase; font-size: .72rem; letter-spacing: .14em; }
.piece h3 { font-weight: 450; font-size: clamp(1.7rem, 4vw, 2.35rem); line-height: 1.12; margin: .5rem 0 .4rem; letter-spacing: -.01em; }
.line { font-style: italic; color: var(--ink2); margin: 0 0 1.6rem; font-size: 1.2rem; }
.tag { font-family: var(--mono); font-size: .62rem; letter-spacing: .12em; text-transform: uppercase; vertical-align: middle;
  padding: .22rem .5rem; border-radius: 99px; margin-left: .5rem; border: 1px solid currentColor; font-weight: 500; }
.tag.live { color: var(--live); } .tag.free { color: var(--moss); }
.cols { display: grid; gap: 1.6rem; grid-template-columns: 1fr; }
.essay p { margin: 0 0 1.05rem; }
.facts { background: var(--card); border: 1px solid var(--rule); border-radius: 6px; padding: 1.1rem 1.2rem; align-self: start; font-size: .95rem; }
.facts dl { margin: 0; }
.facts dt { font-family: var(--mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin-top: .7rem; }
.facts dt:first-child { margin-top: 0; }
.facts dd { margin: .1rem 0 0; line-height: 1.4; }
.links { margin-top: 1rem; display: flex; flex-direction: column; gap: .35rem; font-family: var(--mono); font-size: .76rem; }
@media (min-width: 900px) { .cols { grid-template-columns: minmax(0, var(--measure)) 15rem; gap: 3rem; justify-content: center; } }

.bonus { max-width: 46rem; margin: 2rem auto; padding: 3.2rem 0; border-top: 3px double var(--rule); }
.bonus h2, .not h2, .join h2, .who h2 { font-weight: 400; font-size: clamp(1.9rem, 4.5vw, 2.6rem); line-height: 1.1; margin: 0 0 1rem; letter-spacing: -.01em; }
.problem { background: var(--paper2); border-left: 3px solid var(--accent); padding: 1.3rem 1.4rem; margin: 1.6rem 0; border-radius: 0 6px 6px 0; }
.problem h4 { font-size: 1.32rem; line-height: 1.3; font-weight: 500; margin: 0 0 .8rem; }
.problem p { margin: 0 0 .8rem; } .problem p:last-child { margin: 0; }
h4.sub { font-family: var(--mono); font-weight: 500; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 2rem 0 .7rem; }
.contents { padding-left: 1.1rem; margin: 0; } .contents li { margin: .35rem 0; }
.tablewrap { overflow-x: auto; }
.venues { width: 100%; border-collapse: collapse; font-size: .93rem; }
.venues th { font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); text-align: left; font-weight: 500; padding: .5rem .6rem .5rem 0; border-bottom: 1px solid var(--rule); }
.venues td { vertical-align: top; padding: .75rem .8rem .75rem 0; border-bottom: 1px solid var(--rule); line-height: 1.38; }
.venues td span { display: block; color: var(--muted); font-size: .86rem; margin-top: .15rem; }
.venues td:nth-child(2) { white-space: nowrap; font-family: var(--mono); font-size: .8rem; }
.small { font-family: var(--mono); font-size: .72rem; color: var(--muted); margin-top: .8rem; }
.aside { font-style: italic; color: var(--ink2); margin-top: 1.4rem; }

.projects { display: grid; gap: 1.2rem; margin-top: 1.6rem; }
.project { background: var(--card); border: 1px solid var(--rule); border-radius: 8px; padding: 1.4rem 1.5rem; }
.project h4 { font-size: 1.32rem; font-weight: 500; line-height: 1.25; margin: .2rem 0 .7rem; }
.pl, .mini { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0; }
.mini { color: var(--muted); margin-top: 1rem; }
.sit { font-style: italic; color: var(--ink2); margin: 0; }
.project ul { margin: .4rem 0 0; padding-left: 1.1rem; } .project li { margin: .3rem 0; }
.project p { margin: .3rem 0 0; }
.uses { font-family: var(--mono); font-size: .74rem; color: var(--moss); margin-top: 1rem !important; }

.not { padding: 3rem 0 1rem; border-top: 3px double var(--rule); }
.not ul { padding: 0; list-style: none; } .not li { margin: 0 0 1rem; }

.join { max-width: 40rem; margin: 3rem auto; text-align: center; padding: 3rem 1.4rem; background: var(--card); border: 1px solid var(--rule); border-radius: 10px; }
.price { font-size: 2.2rem; margin: .4rem 0; } .price s { color: var(--muted); font-size: 1.3rem; margin-right: .4rem; }
.price.pending { font-family: var(--mono); font-size: .95rem; letter-spacing: .06em; color: var(--accent); display: inline-flex; align-items: center; gap: .55rem; }
.dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .3; } }
.price-note { color: var(--ink2); max-width: 30rem; margin: .6rem auto 1.6rem; }
.btn { display: inline-block; background: var(--ink); color: var(--paper); text-decoration: none; font-family: var(--mono);
  font-size: .82rem; letter-spacing: .06em; padding: .85rem 1.5rem; border-radius: 99px; }
.btn:hover { background: var(--accent); }

.who { padding: 2rem 0 3rem; border-top: 1px solid var(--rule); }
.course-note { font-style: italic; color: var(--ink2); }
footer { border-top: 1px solid var(--rule); padding: 1.6rem 16px 2.4rem; text-align: center; font-family: var(--mono); font-size: .76rem; color: var(--muted); }
footer .brand { justify-content: center; margin-bottom: .6rem; }
footer p a { color: var(--muted); }
@media (max-width: 560px) { body { font-size: 1.08rem; } .top nav a:nth-child(n+3) { display: none; } .hero { padding-top: 3rem; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .dot { animation: none; } }

/* figures under each facts card */
.pf { margin: 1.1rem -.3rem 0; padding-top: 1rem; border-top: 1px solid var(--rule); }
.pfig { width: 100%; height: auto; display: block; }
.pfig .fl { stroke: var(--ink2); stroke-width: 1.2; fill: none; }
.pfig .fa { fill: var(--ink2); }
.pfig text { font-family: var(--mono); }
.pfig .fb { font-size: 10px; font-weight: 500; }
.pfig .fs { font-size: 7.5px; }
.pfig .fc, .pfig .fs2 { fill: var(--muted); font-size: 8.5px; }
.pfig .fs2 { font-size: 8px; }
.pfig .fb2 { fill: var(--ink); font-size: 10px; font-weight: 500; }
.pfig .fb3 { fill: #fbf4e8; font-size: 10px; font-weight: 500; }
.bonus { max-width: 58rem; }
.bonus > p, .bonus > h2, .bonus > .eyebrow, .bonus > .tablewrap, .bonus > .small, .bonus > .aside { max-width: 46rem; }
.project .cols { margin-top: .4rem; }
.project .facts { background: var(--paper2); }
@media (min-width: 900px) { .project .cols { grid-template-columns: minmax(0, 1fr) 15rem; gap: 2rem; } }

/* enroll at the top */
.top nav a.nav-cta { background: var(--ink); color: var(--paper); padding: .35rem .85rem; border-radius: 99px; }
.top nav a.nav-cta:hover { background: var(--accent); color: var(--paper); }
@media (max-width: 560px) { .top nav a.nav-cta { display: inline-block !important; } }
.hero-cta { margin: 1.6rem 0 0; display: flex; gap: 1.2rem; justify-content: center; align-items: center; flex-wrap: wrap; }
.ghost { font-family: var(--mono); font-size: .8rem; color: var(--muted); text-decoration: none; }
.ghost:hover { color: var(--ink); }
/* Calendly card in the research kit */
.calendly { max-width: 46rem; margin-top: 1.8rem; display: flex; gap: 1.4rem; align-items: center; justify-content: space-between; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--rule); border-left: 4px solid #006BFF; border-radius: 8px; padding: 1.1rem 1.3rem; }
.calendly > div { flex: 1 1 18rem; } .calendly p { margin: 0; } .calendly .eyebrow { margin-bottom: .4rem; color: #006BFF; }
.cal-btn { display: inline-flex; align-items: center; gap: .55rem; background: #006BFF; color: #fff; text-decoration: none; font-family: var(--mono);
  font-size: .82rem; letter-spacing: .03em; padding: .8rem 1.25rem; border-radius: 99px; white-space: nowrap; }
.cal-btn:hover { background: #0052cc; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .calendly .eyebrow { color: #5c9dff; } }

/* keep anchor targets clear of the sticky navbar */
section[id], article[id] { scroll-margin-top: 72px; }