:root {
  --amber:    #FBBE0A;
  --midnight: #1E152A;
  --granite:  #4E6766;
  --pacific:  #5AB1BB;
  --blush:    #D36582;
  --moss:     #6F8F3F;

  /* pacific mixed toward white, matching the `quiet` / `cover` washes */
  --wash:     #F2F8F9;
  --wash-2:   #E4EFF1;
  --rule:     #D8E3E4;

  --ink:      var(--midnight);
  --ink-soft: #55506080;

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans:  "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --measure: 38rem;   /* prose column — ~72 characters at the body size */
  --page:    60rem;   /* outer content width. Kept close to --measure so the block reads as
                         centred on a wide display; at 72rem the prose hugged the left of a
                         mostly-empty column. */
  --gutter:  clamp(1.5rem, 5vw, 5rem);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.12;
  text-wrap: balance;
  margin: 0;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.22em;
  transition: background-color 120ms ease;
}
a:hover { background: #FBBE0A33; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.88em;
  background: var(--wash-2);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

/* ---------------------------------------------------------------- hero */

.hero {
  position: relative;
  min-height: min(46rem, 92vh);
  display: flex;
  flex-direction: column;
  padding-block: 0 clamp(3rem, 8vh, 6rem);
  padding-inline: max(var(--gutter), (100% - var(--page)) / 2);
  background-image: url("assets/hero.webp");
  background-size: cover;
  background-position: 50% 50%;
  isolation: isolate;
}

@media (max-aspect-ratio: 1/1) {
  .hero { background-image: url("assets/hero-mobile.webp"); }
}

.hero__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: baseline;
  justify-content: space-between;
  padding: clamp(1.25rem, 3vh, 2rem) 0;
  width: 100%;
}

.hero__mark {
  font-family: var(--serif);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--granite);
}

.hero__nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
}

.hero__nav a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.15rem;
  color: var(--ink);
}
.hero__nav a:hover {
  background: none;
  border-bottom-color: var(--amber);
}

.hero__body {
  margin-block: auto 0;
  width: 100%;
  padding-top: 4rem;
}

.eyebrow {
  margin: 0 0 1.25rem;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--blush);
}

.hero h1 {
  font-size: clamp(2.4rem, 1.1rem + 5.4vw, 5.25rem);
  font-weight: 300;
  letter-spacing: -0.028em;
  line-height: 1.03;
  max-width: 18ch;
}

.hero__lede {
  margin: 1.5rem 0 0;
  max-width: 36ch;
  font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.3rem);
  line-height: 1.45;
  color: #2E2740;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem 3.5rem;
  margin: clamp(2.5rem, 6vh, 4rem) 0 0;
}
.hero__meta div { display: flex; flex-direction: column; gap: 0.25rem; }
.hero__meta dt {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--granite);
}
.hero__meta dd { margin: 0; font-size: 1.02rem; }

/* ------------------------------------------------------------ sections */

/* The content column is established by the container's own padding, not by
   `margin-inline: auto` on each child. Centring children individually breaks the moment a
   child sets `margin` with a shorthand (`margin: 0 0 2rem`), which silently clears the auto
   and snaps it to the gutter — and it indents any child with a narrower max-width, like
   `.prose`. Padding keeps the background full-bleed while giving every child one left edge. */
.section {
  padding-block: clamp(4rem, 10vh, 7.5rem);
  padding-inline: max(var(--gutter), (100% - var(--page)) / 2);
}

.section--tint {
  background: var(--wash);
  border-block: 1px solid var(--rule);
}

.section h2 {
  font-size: clamp(1.75rem, 1.2rem + 1.9vw, 2.75rem);
  font-weight: 300;
  margin-bottom: 2rem;
}

.section h3 {
  font-size: 1.15rem;
  font-weight: 500;
  margin: 2.25rem 0 0.75rem;
}
.section h3:first-child { margin-top: 0; }

.section__note {
  margin: -1.25rem 0 2.5rem;
  color: var(--granite);
  max-width: var(--measure);
}

.prose { max-width: var(--measure); }
.prose p { margin: 0 0 1.35em; }
.prose p:last-child { margin-bottom: 0; }

.callout {
  border-left: 2px solid var(--amber);
  padding: 0.15rem 0 0.15rem 1.35rem;
  color: #302941;
}

.fineprint {
  font-size: 0.92rem;
  color: var(--granite);
  max-width: var(--measure);
}

/* ------------------------------------------------------------ outcomes */

.outcomes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem 3rem;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
}
.outcomes li {
  position: relative;
  padding-left: 1.6rem;
  max-width: 42ch;
}
.outcomes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--amber);
}

/* ------------------------------------------------------------ schedule */

.schedule {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.schedule th, .schedule td {
  padding: 1.4rem 1.5rem 1.4rem 0;
  vertical-align: baseline;
  border-bottom: 1px solid var(--rule);
}

.schedule thead th {
  padding-top: 0;
  padding-bottom: 0.6rem;
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--granite);
  border-bottom-color: var(--ink);
}

.schedule tbody th {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--blush);
  width: 5rem;
}

.schedule .num { text-align: right; padding-right: 0; white-space: nowrap; color: var(--granite); }
.schedule thead .num { text-align: right; }

.schedule__title {
  display: block;
  font-family: var(--serif);
  font-size: 1.3rem;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}
.schedule__desc {
  display: block;
  max-width: 54ch;
  color: #4A4458;
  font-size: 0.96rem;
  line-height: 1.55;
}

.schedule__break td, .schedule__break .num { color: var(--granite); font-size: 0.95rem; }
.schedule__break td, .schedule__break th { padding-block: 0.9rem; }

.schedule__total td, .schedule__total .num {
  font-weight: 500;
  border-bottom: none;
}

/* ---------------------------------------------------------------- cols */

.cols {
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
}
.cols ul { margin: 0 0 1.5rem; padding-left: 1.15rem; }
.cols li { margin-bottom: 0.5rem; max-width: 46ch; }

/* ----------------------------------------------------------- materials */

.materials {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  max-width: 44rem;
}
.materials li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--rule);
}
.materials__name { font-family: var(--serif); font-size: 1.15rem; }
.materials__status {
  font-size: 0.75rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--granite);
}
.materials .pending .materials__name { color: var(--granite); }

/* ------------------------------------------------------------- reading */

.reading {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.6rem;
  max-width: 52rem;
}
.reading li { padding-left: 1.1rem; border-left: 1px solid var(--rule); }
.reading a { font-family: var(--serif); font-size: 1.12rem; }
.reading__meta {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.9rem;
  color: var(--granite);
}

/* -------------------------------------------------------------- people */

/* Auto-fit rather than a fixed column count, so organisers sit in a row on a wide screen
   and stack on a phone without a media query. */
.people {
  list-style: none;
  margin: 0 0 2.5rem;
  padding: 0;
  display: grid;
  gap: 2rem 3rem;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}
.people li { display: flex; flex-direction: column; gap: 0.15rem; }
.people__name { font-family: var(--serif); font-size: 1.3rem; line-height: 1.2; }
.people__affil { color: var(--granite); }
.people__role {
  margin-top: 0.55rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--blush);
}

/* -------------------------------------------------------------- footer */

.footer {
  padding-block: 3rem 4rem;
  padding-inline: max(var(--gutter), (100% - var(--page)) / 2);
  border-top: 1px solid var(--rule);
  background: var(--wash);
  color: var(--granite);
  font-size: 0.92rem;
}
.footer p { margin: 0 0 0.5rem; }
.footer__fine { font-size: 0.85rem; }

/* ------------------------------------------------------------- motion */

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

:focus-visible {
  outline: 2px solid var(--midnight);
  outline-offset: 3px;
  border-radius: 2px;
}