:root {
    /* colours taken from tasmanian rainforest button grass and southern ocean */
    /* each colour keeps its wheel meaning so ochre can mean action */
    /* ocean and ink lean green so all three hues sit in one earthy family */
    --navy: #16292C;
    --gold: #C9963F;
    --gold-hover: #B5832F;
    --gold-text: #7E5A18;
    --gold-on-dark: #E4B865;
    --ocean: #3A6B78;
    --ocean-deep: #24505C;
    --ocean-tint: #E7EEEE;
    --forest: #1F4D3A;
    --forest-ink: #CFE0D5;
    --moss: #EAF2EC;
    --em: #2A6A4A;

    /* surfaces and text */
    --bg: #F7F8F5;
    --mist: #ECF1EC;
    --sand: #F5EFE2;
    --ink: #16292C;
    --muted: #4E625A;
    --line: #D7E0DA;
    --on-dark: #FFFFFF;
    --on-dark-muted: #C9D6E0;
    --on-gold: #16292C;
    --line-on-dark: rgba(255, 255, 255, .2);
    --backdrop: rgba(8, 24, 18, .8);
    --avatar-bg: #F2F2F2;
    --band: #16292C;
    --band-ink: #FFFFFF;
    --band-muted: #C6D4D0;
    --cta-bg: #C9963F;
    --cta-ink: #16292C;
    --cta-hover: #B5832F;
    --nav-bg: #163828;
    --nav-ink: #F1F6F2;
    --nav-muted: #BBD0C2;

    /* feedback */
    --danger: #B3261E;
    --success: #2A6A4A;
    --focus: #3A6B78;

    /* wheel */
    --seg-island: #2A6A4A;
    --seg-exchange: #C9963F;
    --seg-home: #3A6B78;
    --seg-exchange-ink: #16292C;
    --hub: #F7F8F5;

    /* type */
    --font: 'Schibsted Grotesk', system-ui, sans-serif;
    --step--2: .75rem;
    --step--1: .9rem;
    --step-0: 1rem;
    --step-1: 1.2rem;
    --step-2: 1.5rem;
    --step-3: 1.75rem;
    --step-body: clamp(1rem, .94rem + .25vw, 1.125rem);
    --display-s: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem);
    --display-m: clamp(1.9rem, 3.6vw, 2.75rem);
    --display-l: clamp(2.3rem, 1.2rem + 3.6vw, 4.4rem);
    --lh-tight: 1.1;
    --lh-snug: 1.35;
    --lh-body: 1.6;
    --lh-loose: 1.8;

    /* space */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;

    /* shape */
    --radius-sm: 4px;
    --radius-control: 10px;
    --radius-panel: 18px;

    color-scheme: light;
  }
  :root[data-theme="dark"] {
    --gold-text: #E4B865;
    --ocean-deep: #1F434B;
    --ocean-tint: #13262A;
    --forest: #163426;
    --forest-ink: #C3D6CA;
    --moss: #13261D;
    --em: #8FCBA8;
    --bg: #0B1813;
    --mist: #12241C;
    --sand: #1A261E;
    --ink: #E5EDE8;
    --muted: #A7BBB0;
    --line: #2A4136;
    --band: #12241C;
    --band-ink: #E5EDE8;
    --band-muted: #A7BBB0;
    --cta-bg: #E4B865;
    --cta-ink: #0B1813;
    --cta-hover: #EFCB85;
    --nav-bg: #173A29;
    --danger: #F2B8B5;
    --success: #8FCBA8;
    --focus: #E4B865;
    --seg-island: #2F7A55;
    --seg-exchange: #E4B865;
    --seg-home: #33707C;
    --seg-exchange-ink: #0B1813;
    --hub: #12241C;
    color-scheme: dark;
  }

  /* only break at 520 760 and 960px so sections reflow together */

  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font);
    font-size: var(--step-body);
    line-height: var(--lh-body);
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  h1, h2, h3, h4 { line-height: var(--lh-tight); margin: 0; }
  p { margin: 0; }
  a { color: inherit; }
  :focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: var(--radius-sm); }

  .wrap { width: min(1240px, 100% - 2 * clamp(16px, 4vw, 56px)); margin-inline: auto; }

  .skip {
    position: absolute; left: var(--space-4); top: -60px; z-index: 50;
    background: var(--navy); color: var(--on-dark); padding: var(--space-2) var(--space-4); border-radius: var(--radius-control);
  }
  .skip:focus { top: var(--space-3); }

  /* gold text links and buttons that look like them */
  .text-link {
    background: none; border: 0; padding: 0; font: inherit; color: var(--gold-text);
    font-weight: 700; text-decoration: underline; text-underline-offset: 3px; cursor: pointer;
  }
  .text-link:hover, .site-foot a:hover { text-decoration-thickness: 2px; }

  /* header */
  .site-head {
    position: sticky; top: 0; z-index: 20;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
  }
  .head-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 68px; }
  .wordmark { text-decoration: none; line-height: 1; display: inline-flex; flex-direction: column; gap: var(--space-1); padding: var(--space-2) 0; }
  .wordmark b { font-weight: 900; font-size: var(--step-1); letter-spacing: .01em; }
  .wordmark b span { color: var(--gold-text); }
  /* spaced tasmania line copies the event poster lockup */
  .wordmark small { font-size: var(--step--2); letter-spacing: .38em; font-weight: 700; color: var(--muted); }
  .nav { display: flex; align-items: center; gap: var(--space-1); }
  .nav a {
    text-decoration: none; font-weight: 700; font-size: var(--step--1);
    padding: var(--space-2) var(--space-3); border-radius: var(--radius-control);
  }
  .nav a:hover { background: var(--mist); }
  .nav .nav-cta { background: var(--cta-bg); color: var(--cta-ink); margin-left: var(--space-2); }
  .nav .nav-cta:hover { background: var(--cta-hover); }
  .icon-btn {
    display: inline-grid; place-items: center;
    width: 44px; height: 44px; border-radius: var(--radius-control);
    border: 1px solid var(--line); background: transparent; color: var(--ink);
    cursor: pointer;
  }
  .icon-btn:hover { background: var(--mist); }
  .icon-btn:active { transform: translateY(1px); }
  .icon-btn svg { width: 20px; height: 20px; }
  .menu-btn { display: none; }
  .theme-btn .moon { display: none; }
  :root[data-theme="dark"] .theme-btn .sun { display: none; }
  :root[data-theme="dark"] .theme-btn .moon { display: block; }
  .head-tools { display: flex; align-items: center; gap: var(--space-2); }

  @media (max-width: 960px) {
    .menu-btn { display: inline-grid; }
    .nav {
      display: none;
      position: absolute; left: 0; right: 0; top: 100%;
      flex-direction: column; align-items: stretch; gap: 0;
      background: var(--bg); border-bottom: 1px solid var(--line);
      padding: var(--space-2) var(--space-4) var(--space-4);
    }
    .nav.open { display: flex; }
    .nav a { padding: var(--space-3) var(--space-2); border-bottom: 1px solid var(--line); border-radius: 0; }
    .nav .nav-cta { margin: var(--space-3) 0 0; border-radius: var(--radius-control); text-align: center; border: 0; }
  }

  /* buttons */
  .btn {
    display: inline-flex; align-items: center; justify-content: center;
    min-height: 48px; padding: var(--space-3) var(--space-5); border-radius: var(--radius-control);
    font-family: inherit; font-weight: 700; font-size: var(--step-0); text-decoration: none;
    border: 2px solid transparent; cursor: pointer;
  }
  .btn:active { transform: translateY(1px); }
  /* ready for when the form posts somewhere and has to wait */
  .btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }
  .btn[aria-busy="true"] { opacity: .75; cursor: progress; }
  .btn-primary { background: var(--cta-bg); color: var(--cta-ink); }
  .btn-primary:hover { background: var(--cta-hover); }
  .btn-quiet { border-color: currentColor; color: var(--ink); }
  .btn-quiet:hover { background: var(--mist); }

  /* hero */
  .hero { padding: var(--space-8) 0 var(--space-7); }
  .hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: var(--space-7); align-items: center; }
  .hero h1 { font-size: var(--display-l); font-weight: 900; letter-spacing: -.015em; }
  .hero h1 em { font-style: normal; color: var(--em); }
  .rule { width: 72px; height: 4px; background: var(--gold); border: 0; margin: var(--space-6) 0; }
  .hero .lede { font-size: var(--step-1); color: var(--muted); max-width: 34em; }
  .hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }

  .wheel { width: 100%; max-width: 540px; margin: 0 auto; }
  .wheel svg { width: 100%; height: auto; overflow: visible; }
  .wheel text { font-family: var(--font); }
  .wheel a path { transition: opacity .15s; }
  .wheel a:hover path, .wheel a:focus-visible path { opacity: .85; }
  .wheel a:focus-visible { outline: none; }
  .wheel a:focus-visible path { stroke: var(--focus); stroke-width: 5; }
  /* segments grow out in cycle order, then a highlight walks round to show the loop */
  @media (prefers-reduced-motion: no-preference) {
    .wheel a, .wheel svg > circle, .wheel svg > text {
      transform-box: view-box; transform-origin: 200px 200px;
      animation: wheel-in .7s cubic-bezier(.2, .8, .2, 1) both;
    }
    .wheel a:nth-of-type(2) { animation-delay: .18s; }
    .wheel a:nth-of-type(3) { animation-delay: .36s; }
    .wheel svg > circle, .wheel svg > text { animation-name: hub-in; animation-delay: .55s; }
    .wheel a path { animation: wheel-turn 6s ease-in-out 1.4s infinite; }
    .wheel a:nth-of-type(2) path { animation-delay: 3.4s; }
    .wheel a:nth-of-type(3) path { animation-delay: 5.4s; }
    .wheel:hover a path { animation-play-state: paused; }
  }
  @keyframes wheel-in { from { opacity: 0; transform: scale(.55) rotate(-20deg); } }
  @keyframes hub-in { from { opacity: 0; transform: scale(.7); } }
  @keyframes wheel-turn { 0%, 30%, 100% { filter: none; } 12% { filter: brightness(1.3) saturate(1.1); } }

  @media (max-width: 960px) {
    .hero { padding: var(--space-6) 0 var(--space-7); }
    .hero-grid { grid-template-columns: 1fr; gap: var(--space-6); }
    .wheel { max-width: 380px; }
  }

  /* section basics */
  section { padding: var(--space-9) 0; }
  .sec-title { font-size: var(--display-m); font-weight: 900; letter-spacing: -.01em; }
  .sec-sub { color: var(--muted); font-size: var(--step-1); margin-top: var(--space-3); max-width: 40em; }
  @media (max-width: 520px) { section { padding: var(--space-8) 0; } }

  /* platform parts sit beside the heading so the section isn't a 3-up grid */
  .platform-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: var(--space-8); align-items: start; }
  .parts { margin: 0; display: grid; gap: var(--space-5); }
  .parts div { display: grid; grid-template-columns: 14px 1fr; gap: var(--space-1) var(--space-4); }
  /* the swatch ties each part back to its wheel segment */
  .parts div::before { content: ""; grid-row: 1 / span 2; width: 14px; height: 14px; margin-top: .4em; border-radius: 3px; background: var(--c); }
  .parts dt { font-size: var(--step-2); font-weight: 900; letter-spacing: -.025em; line-height: var(--lh-snug); }
  .parts dd { margin: 0; color: var(--muted); }
  @media (max-width: 960px) { .platform-grid { grid-template-columns: 1fr; gap: var(--space-6); } }

  .hero .lede { margin-top: var(--space-5); }
  .hero-dates { display: flex; flex-wrap: wrap; gap: var(--space-6); margin: var(--space-6) 0 0; padding-top: var(--space-4); border-top: 1px solid var(--line); }
  .hero-dates dt { font-weight: 900; font-size: var(--step-1); }
  .hero-dates dd { margin: 0; color: var(--muted); font-size: var(--step--1); }
  .hero-actions { align-items: center; gap: var(--space-5); }

  .engine {
    margin-top: var(--space-8); background: var(--band); color: var(--band-ink);
    border-radius: var(--radius-panel); padding: var(--space-6);
    display: grid; grid-template-columns: 1fr 1.6fr; gap: var(--space-6); align-items: center;
  }
  .engine h3 { font-size: var(--step-3); font-weight: 900; }
  .engine .tag { color: var(--band-muted); font-style: italic; font-weight: 700; margin-top: var(--space-1); }
  .engine ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
  .engine li { font-weight: 700; font-size: var(--step-1); display: flex; align-items: center; gap: var(--space-2); }
  .engine li + li::before { content: ""; width: 14px; height: 2px; background: var(--band-muted); }
  .engine li.fork { color: var(--band-muted); font-weight: 400; font-style: italic; }
  @media (max-width: 760px) { .engine { grid-template-columns: 1fr; padding: var(--space-5); } }

  .domains { margin-top: var(--space-8); }
  .domains h3 { font-size: var(--step-1); font-weight: 900; }
  .domains ul { list-style: none; padding: 0; margin: var(--space-5) 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
  .domains li { display: flex; align-items: center; gap: var(--space-3); font-weight: 700; }
  .domains img { width: 64px; height: 64px; border-radius: 50%; flex: none; }
  /* the icon art has a pale circle that glares on dark tiles */
  :root[data-theme="dark"] .domains img { filter: brightness(.82); }
  @media (max-width: 960px) { .domains ul { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 520px) { .domains ul { grid-template-columns: 1fr; } }

  /* island intelligence */
  .island { background: var(--forest); color: var(--on-dark); --focus: var(--gold-on-dark); }
  :root[data-theme="dark"] .island { border-block: 1px solid var(--line); }
  .island-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--space-8); align-items: start; }
  .island .sec-sub { color: var(--forest-ink); }
  .figures { margin-top: var(--space-5); font-size: var(--step-1); color: var(--forest-ink); max-width: 34em; }
  .figures b { color: var(--on-dark); font-weight: 700; }
  .prize { margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--line-on-dark); color: var(--forest-ink); }
  .prize strong { color: var(--on-dark); }
  .live-link { margin-top: var(--space-6); }
  .team h3 { font-size: var(--step-1); font-weight: 900; margin-bottom: var(--space-4); }
  .team ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4) var(--space-5); }
  .team li { display: flex; align-items: center; gap: var(--space-3); }
  .team img { width: 60px; height: 60px; border-radius: 50%; object-fit: cover; flex: none; background: var(--avatar-bg); }
  .team b { display: block; font-weight: 700; line-height: var(--lh-snug); }
  .team span { color: var(--forest-ink); font-size: var(--step--1); }
  .shots { margin-top: var(--space-8); display: grid; grid-template-columns: 1.5fr 1fr; gap: var(--space-6); align-items: start; }
  .shots figure { margin: 0; }
  .shots .side-shots { display: grid; gap: var(--space-6); }
  .shots .shot { display: block; border-radius: var(--radius-control); overflow: hidden; border: 1px solid var(--line-on-dark); }
  .shots .shot:hover { border-color: var(--gold-on-dark); }
  .shots img { width: 100%; height: auto; }
  .shots figcaption { color: var(--forest-ink); font-size: var(--step--1); margin-top: var(--space-2); }
  @media (max-width: 960px) { .island-grid { grid-template-columns: 1fr; gap: var(--space-7); } }
  @media (max-width: 760px) { .shots { grid-template-columns: 1fr; margin-top: var(--space-7); } }
  @media (max-width: 520px) { .team ul { grid-template-columns: 1fr; } }

  /* home ground */
  .give-get { display: grid; grid-template-columns: 1fr auto 1fr; gap: var(--space-6); margin-top: var(--space-8); align-items: stretch; }
  .give-get-panel { border-radius: var(--radius-panel); overflow: hidden; display: flex; flex-direction: column; }
  .give-get-panel header { padding: var(--space-4) var(--space-5); font-weight: 900; font-size: var(--step-1); }
  /* home ground wears the ocean blue it has on the wheel */
  .give-get-panel.students { background: var(--ocean-tint); }
  .give-get-panel.students header { background: var(--ocean); color: var(--on-dark); }
  .give-get-panel.org { background: var(--bg); }
  .give-get-panel.org header { background: var(--ocean-tint); color: var(--ink); border-bottom: 1px solid var(--line); }
  .give-get-panel .body { padding: var(--space-5) var(--space-5) var(--space-6); display: grid; gap: var(--space-5); }
  .give-get-panel h4 { margin: 0 0 var(--space-2); font-size: var(--step-0); font-weight: 900; }
  .give-get-panel ul { margin: 0; padding-left: 1.1em; }
  .give-get-panel li { margin: var(--space-1) 0; }
  .compact {
    align-self: center; width: 250px; aspect-ratio: 1; border-radius: 50%;
    background: var(--ocean-deep); color: var(--on-dark); border: 7px solid var(--ocean);
    display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: var(--space-5);
  }
  .compact h3 { color: var(--on-dark); font-size: var(--step-2); font-weight: 900; }
  .compact p { font-style: italic; font-size: var(--step--1); color: var(--on-dark-muted); margin-top: var(--space-1); }
  .compact ul { list-style: none; padding: var(--space-3) 0 0; margin: var(--space-3) 0 0; border-top: 2px solid var(--line-on-dark); font-weight: 700; line-height: var(--lh-loose); }
  .frame-note { text-align: center; color: var(--muted); font-style: italic; margin-top: var(--space-5); }
  @media (max-width: 960px) {
    .give-get { grid-template-columns: 1fr; }
    .compact { order: -1; justify-self: center; }
  }

  .timeline { list-style: none; margin: var(--space-8) 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 2px solid var(--line); }
  .timeline li { padding: var(--space-5) var(--space-5) 0 0; position: relative; }
  .timeline li::before { content: ""; position: absolute; top: -8px; left: 0; width: 14px; height: 14px; border-radius: 50%; background: var(--seg-home); }
  .timeline b { display: block; font-size: var(--step-2); font-weight: 900; }
  .timeline span { color: var(--muted); }
  @media (max-width: 760px) {
    .timeline { grid-template-columns: 1fr; border-top: 0; border-left: 2px solid var(--line); gap: var(--space-5); margin-left: 7px; }
    .timeline li { padding: 0 0 0 var(--space-5); }
    .timeline li::before { top: 8px; left: -8px; }
  }

  /* register */
  .register { margin-top: var(--space-9); display: grid; grid-template-columns: .75fr 1.25fr; gap: var(--space-8); align-items: start; }
  .register h3 { font-size: var(--display-s); font-weight: 900; }
  .register .intro p { color: var(--muted); margin-top: var(--space-3); }
  .register .intro .not-live {
    margin-top: var(--space-5); padding: var(--space-3) var(--space-4); border-radius: var(--radius-control);
    background: var(--sand); border: 1px solid var(--gold); color: var(--ink); font-size: var(--step--1);
  }
  .not-live strong { display: block; }
  .register .intro .contact-note { margin-top: var(--space-4); font-size: var(--step--1); }
  .reg-form { display: grid; gap: var(--space-5); }
  .reg-form fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
  .reg-form legend, .field label { font-weight: 700; margin-bottom: var(--space-2); display: block; padding: 0; }
  .roles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
  .role { position: relative; }
  .role input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
  .role span {
    display: block; height: 100%; padding: var(--space-3) var(--space-4); border-radius: var(--radius-control);
    border: 2px solid var(--line); background: var(--bg); cursor: pointer;
  }
  .role b { display: block; font-weight: 900; }
  .role small { display: block; color: var(--muted); font-size: var(--step--1); line-height: var(--lh-snug); margin-top: var(--space-1); }
  .role:hover span { border-color: var(--muted); }
  .role input:checked + span { border-color: var(--ocean); background: var(--ocean-tint); box-shadow: inset 0 0 0 1px var(--ocean); }
  .role input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
  .fields { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
  .field.wide { grid-column: 1 / -1; }
  .field input, .field textarea {
    width: 100%; font: inherit; color: var(--ink); background: var(--bg);
    border: 2px solid var(--line); border-radius: var(--radius-control); padding: var(--space-3); min-height: 48px;
  }
  .field textarea { min-height: 110px; resize: vertical; }
  .field input:hover, .field textarea:hover { border-color: var(--muted); }
  .field input:focus-visible, .field textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; border-radius: var(--radius-control); }
  .field .opt { font-weight: 400; color: var(--muted); }
  [aria-invalid="true"] { border-color: var(--danger) !important; }
  .err { color: var(--danger); font-size: var(--step--1); font-weight: 700; margin-top: var(--space-2); }
  .err:empty { display: none; }
  .form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4); }
  .status { font-weight: 700; }
  .status:empty { display: none; }
  .status.ok { color: var(--success); }
  .status.bad { color: var(--danger); }
  .status.busy { color: var(--muted); }
  /* turnstile draws a fixed 300x65 box so hold the space before it loads */
  .captcha { min-height: 65px; }
  @media (max-width: 960px) { .register { grid-template-columns: 1fr; gap: var(--space-6); } }
  @media (max-width: 760px) { .roles, .fields { grid-template-columns: 1fr; } }

  /* footer */
  .site-foot { padding: var(--space-6) 0 var(--space-7); border-top: 1px solid var(--line); }
  .foot-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-5); align-items: center; }
  .site-foot p { color: var(--muted); max-width: 36em; }
  .site-foot a { font-weight: 700; text-underline-offset: 3px; padding: var(--space-2) 0; display: inline-block; }

  /* solid rainforest bar so the header reads as tasmanian before any content */
  .site-head { background: var(--nav-bg); color: var(--nav-ink); border-bottom: 0; --focus: var(--gold-on-dark); }
  /* the wheel colours in cycle order give the bar its signature edge */
  .site-head::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 4px;
    background: linear-gradient(90deg, var(--seg-island) 0 33.34%, var(--seg-exchange) 0 66.67%, var(--seg-home) 0);
  }
  .wordmark b { letter-spacing: -.035em; color: var(--on-dark); }
  .wordmark b span { color: var(--gold-on-dark); }
  .wordmark small { color: var(--nav-muted); }
  .nav a { color: var(--nav-muted); position: relative; }
  .nav a:hover { background: rgba(255, 255, 255, .08); color: var(--nav-ink); }
  .nav a[aria-current] { color: var(--on-dark); }
  .nav a[aria-current]::after {
    content: ""; position: absolute; left: var(--space-3); right: var(--space-3); bottom: 3px;
    height: 2px; background: var(--gold-on-dark);
  }
  .nav .nav-cta { background: var(--gold); color: var(--on-gold); }
  .nav .nav-cta:hover { background: var(--gold-on-dark); color: var(--on-gold); }
  .site-head .icon-btn { color: var(--nav-ink); border-color: rgba(255, 255, 255, .24); }
  .site-head .icon-btn:hover { background: rgba(255, 255, 255, .08); }
  @media (max-width: 960px) {
    .nav { background: var(--nav-bg); border-bottom: 0; top: calc(100% + 4px); }
    .nav a { border-bottom-color: rgba(255, 255, 255, .12); }
    .nav a[aria-current]::after { left: var(--space-2); right: auto; width: 28px; bottom: 6px; }
  }

  .hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: clamp(72px, 9vw, 128px) 0 clamp(56px, 7vw, 96px);
    background: var(--bg);
  }
  .hero-grid { grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 6vw, 88px); }
  .hero h1 { max-width: 18ch; letter-spacing: -.045em; }
  .hero .rule { display: none; }
  .hero .lede { max-width: 36em; }
  .hero-actions { margin-top: var(--space-5); }
  .btn { border-radius: var(--radius-control); padding-inline: 24px; }
  .btn-quiet { border-width: 1px; }
  .wheel { position: relative; z-index: 0; }
  .wheel a path { animation: none !important; }
  @media (max-width: 760px) {
    .hero { padding: 64px 0 52px; }
    .hero-grid { grid-template-columns: 1fr; gap: 28px; }
    .wheel { max-width: 360px; }
  }
  @media (min-width: 761px) and (max-width: 960px) {
    .hero-grid { grid-template-columns: 1fr; gap: 28px; }
    .wheel { max-width: 360px; }
  }

  section { padding-block: clamp(64px, 8vw, 88px); }
  .sec-title { max-width: 22ch; letter-spacing: -.035em; }
  .sec-sub { max-width: 44em; }
  .engine { border-radius: var(--radius-panel); }
  .domains { margin-top: var(--space-7); }
  .domains ul { gap: var(--space-3); }
  .domains img { width: 48px; height: 48px; }

  .island {
    background: var(--forest);
  }
  .island .sec-title { max-width: 18ch; }
  .team ul { gap: var(--space-3) var(--space-4); }
  .team li { padding: 8px; border-radius: 14px; background: rgba(255, 255, 255, .055); }
  .team img { width: 48px; height: 48px; }
  .shots .shot { border-radius: 14px; }
  /* big preview on hover so the dashboard detail is readable without leaving */
  @media (hover: hover) and (pointer: fine) and (min-width: 961px) {
    .shots .shot::before, .shots .shot::after { content: ""; position: fixed; pointer-events: none; opacity: 0; }
    .shots .shot::before { inset: 0; z-index: 30; background: var(--backdrop); transition: opacity .2s; }
    .shots .shot::after {
      z-index: 31; left: 50%; top: 50%;
      width: min(1100px, 88vw, calc(86vh * 1.583)); aspect-ratio: 1425 / 900;
      background: var(--shot) center / cover no-repeat;
      border-radius: 14px; box-shadow: 0 24px 64px rgba(0, 0, 0, .45);
      transform: translate(-50%, -50%) scale(.9);
      transition: opacity .2s, transform .3s cubic-bezier(.2, .8, .2, 1);
    }
    .shots .shot:hover::before, .shots .shot:hover::after { opacity: 1; transition-delay: .12s; }
    .shots .shot:hover::after { transform: translate(-50%, -50%) scale(1); }
  }
  @media (prefers-reduced-motion: reduce) {
    .shots .shot::after { transition: opacity .2s; transform: translate(-50%, -50%); }
    .shots .shot:hover::after { transform: translate(-50%, -50%); }
  }

  .give-get { gap: var(--space-4); }
  .give-get-panel { border: 1px solid var(--line); border-radius: var(--radius-panel); }
  .give-get-panel header { font-size: var(--step-0); }
  .compact {
    width: 190px;
    aspect-ratio: auto;
    align-self: stretch;
    padding: var(--space-5);
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: var(--radius-panel);
  }
  .compact h3 { font-size: var(--step-1); }
  .compact ul { font-size: var(--step--1); }
  .timeline { margin-top: var(--space-7); }
  .timeline b { font-size: var(--step-1); }
  .register { margin-top: var(--space-8); padding-top: var(--space-7); border-top: 1px solid var(--line); }
  .register .intro .not-live { border-color: var(--line); }
  .role span { border-width: 1px; border-radius: 12px; }
  .field input, .field textarea { border-width: 1px; }
  /* footer mirrors the header so the page is bookended in rainforest green */
  .site-foot {
    position: relative; background: var(--nav-bg); color: var(--nav-muted);
    border-top: 0; padding: var(--space-8) 0 var(--space-7); --focus: var(--gold-on-dark);
  }
  .site-foot::before {
    content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px;
    background: linear-gradient(90deg, var(--seg-island) 0 33.34%, var(--seg-exchange) 0 66.67%, var(--seg-home) 0);
  }
  /* faint island outline says where this happens before any text is read */
  /* fills the empty space under the platform intro and says where this happens */
  #platform { position: relative; isolation: isolate; }
  /* sits in the flow so nothing below can cover it */
  .platform-grid > div:first-child::after {
    content: ""; display: block; pointer-events: none;
    margin-top: var(--space-6); width: min(100%, 300px); aspect-ratio: 408 / 486;
    background: var(--ink);
    -webkit-mask: url("assets/tasmania-outline.svg") left top / contain no-repeat;
    mask: url("assets/tasmania-outline.svg") left top / contain no-repeat;
    opacity: .12;
  }
  @media (max-width: 960px) { .platform-grid > div:first-child::after { display: none; } }
  .site-foot p { color: var(--nav-muted); }
  .site-foot a { color: var(--on-dark); text-decoration: none; }
  /* bold white already marks them as links so the underline only shows on hover */
  .site-foot a:hover, .site-foot a:focus-visible { text-decoration: underline; text-underline-offset: 3px; }
  .partners {
    list-style: none; margin: var(--space-6) 0 0; padding: var(--space-6) 0 0;
    border-top: 1px solid var(--line-on-dark);
    display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-5) var(--space-8);
  }
  .site-foot .partners a { display: block; padding: var(--space-2) 0; }
  /* one-colour white so three different brand palettes sit quietly together */
  .partners img { height: 44px; width: auto; filter: brightness(0) invert(1); opacity: .88; }
  .partners a:hover img { opacity: 1; }
  /* astn's png has a solid white box so invert it and let screen drop the black */
  .partners img.solid-bg { height: 64px; filter: grayscale(1) invert(1) brightness(1.4); mix-blend-mode: screen; opacity: 1; }
  .site-foot p a { display: inline; padding: 0; }
  .site-foot .acknowledgement {
    margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--line-on-dark);
    max-width: 52em; font-size: var(--step--1); color: var(--nav-ink);
  }

  /* home ground page hero has no wheel beside it */
  .hero-grid.solo { grid-template-columns: 1fr; }
  .hg-cta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-5); margin-top: var(--space-7); }

  /* shows once the reader is a screen down so it never covers the hero */
  .to-top {
    position: fixed; right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); z-index: 20;
    width: 48px; height: 48px; display: grid; place-items: center;
    border: 0; border-radius: 50%; background: var(--cta-bg); color: var(--cta-ink);
    box-shadow: 0 4px 14px rgb(0 0 0 / .18); cursor: pointer;
    opacity: 0; visibility: hidden; transform: translateY(8px);
    transition: opacity .2s, transform .2s, visibility .2s;
  }
  .to-top.show { opacity: 1; visibility: visible; transform: none; }
  .to-top:hover { background: var(--cta-hover); }
  .to-top svg { width: 22px; height: 22px; }
  @media (prefers-reduced-motion: reduce) { .to-top { transition: none; } }