/* The same navy, electric blue, typography and light/dark language as Motion and Matter. */
:root {
  color-scheme: light;
  --bg: #f3f5fa; --surface: #fff; --surface-2: #f6f8fc;
  --ink: #0a1430; --ink-2: #3a4668; --ink-3: #6b7594;
  --line: rgba(10,20,48,.10); --line-2: rgba(10,20,48,.18);
  --grid: rgba(27,47,102,.06); --accent: #1f5fe0; --accent-ink: #fff;
  --shadow: 0 1px 0 rgba(10,20,48,.04), 0 18px 48px -18px rgba(10,20,48,.18);
  --font-display: 'Clash Display', system-ui, sans-serif;
  --font-body: 'Satoshi', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark; --bg: #050a18; --surface: #0a1430; --surface-2: #0e1a3d;
    --ink: #e9eefc; --ink-2: #aab6d6; --ink-3: #7584ad;
    --line: rgba(141,182,255,.12); --line-2: rgba(141,182,255,.22);
    --grid: rgba(141,182,255,.05); --accent: #3b82ff; --accent-ink: #050a18;
    --shadow: 0 24px 60px -24px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark; --bg: #050a18; --surface: #0a1430; --surface-2: #0e1a3d;
  --ink: #e9eefc; --ink-2: #aab6d6; --ink-3: #7584ad;
  --line: rgba(141,182,255,.12); --line-2: rgba(141,182,255,.22);
  --grid: rgba(141,182,255,.05); --accent: #3b82ff; --accent-ink: #050a18;
  --shadow: 0 24px 60px -24px rgba(0,0,0,.7);
}
* { box-sizing: border-box; }
html { scroll-padding-top: 90px; }
body { margin: 0; color: var(--ink); font: 17px/1.55 var(--font-body); -webkit-font-smoothing: antialiased; background: linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 32px 32px, linear-gradient(90deg,var(--grid) 1px, transparent 1px) 0 0 / 32px 32px, var(--bg); }
a { color: inherit; text-underline-offset: .2em; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 8px; }
.nav { position: sticky; top: 0; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 16px max(20px,calc((100% - 1120px) / 2)); border-bottom: 1px solid var(--line); background: var(--bg); background: color-mix(in srgb,var(--bg) 88%,transparent); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 12px; font: 600 22px/1 var(--font-display); text-decoration: none; }
.brand span { color: var(--ink-3); font: 500 11px/1.4 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; }
.nav-end { display: flex; align-items: center; gap: 12px; }
.map-link { font-size: 14px; font-weight: 600; text-decoration: none; }
.map-link:hover { color: var(--accent); }
.theme-btn { width: 40px; height: 40px; border: 1px solid var(--line-2); border-radius: 50%; background: var(--surface); color: var(--ink); font-size: 22px; cursor: pointer; }
.theme-btn[hidden] { display: none; }
main, footer { width: min(1120px,calc(100% - 40px)); margin-inline: auto; }
.plan-hero { position: relative; padding: 60px 0 42px; }
.plan-hero::before { content: ''; position: absolute; pointer-events: none; z-index: -1; inset: 0 0 -30% 20%; background: radial-gradient(ellipse at 70% 20%,color-mix(in srgb,var(--accent) 15%,transparent),transparent 65%); }
.eyebrow { margin: 0 0 14px; color: var(--accent); font: 600 12px/1.5 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.plan-hero > .eyebrow::before { content: ''; display: inline-block; width: 8px; height: 8px; margin-right: 10px; border-radius: 2px; background: var(--accent); box-shadow: 0 0 12px color-mix(in srgb,var(--accent) 50%,transparent); }
h1 { margin: 0 0 24px; font: 700 clamp(56px,8vw,104px)/.92 var(--font-display); letter-spacing: -.035em; }
h1 em { color: var(--accent); font-style: normal; }
.intro { max-width: 54ch; margin: 0; color: var(--ink-2); font-size: 20px; }
.steps { list-style: none; counter-reset: step; display: grid; gap: 20px; margin: 0; padding: 0; }
.steps > li { counter-increment: step; position: relative; padding: 32px 36px 32px 112px; border: 1px solid var(--line-2); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow); }
.steps > li:first-child { border-top: 3px solid var(--accent); }
.steps > li::before { content: counter(step,decimal-leading-zero); position: absolute; top: 32px; left: 30px; display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid var(--line-2); border-radius: 14px; color: var(--accent); background: var(--surface-2); font: 600 18px/1 var(--font-mono); }
.steps > li:last-child { background: var(--surface-2); }
h2 { margin: 0 0 14px; font: 600 clamp(25px,3.3vw,36px)/1.12 var(--font-display); letter-spacing: -.025em; text-wrap: balance; }
section p:not(.eyebrow) { max-width: 65ch; margin: 0 0 22px; color: var(--ink-2); }
section p:last-child { margin-bottom: 0; }
strong { color: var(--ink); }
.action { display: inline-flex; align-items: center; justify-content: center; gap: 14px; padding: 13px 22px; border: 1px solid transparent; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: 15px; font-weight: 700; line-height: 1.4; text-decoration: none; transition: transform .15s,box-shadow .15s; }
.action:hover { transform: translateY(-1px); box-shadow: 0 8px 22px -8px var(--accent); }
.action.secondary { color: var(--ink); background: var(--surface); border-color: var(--line-2); }
.action.secondary:hover { color: var(--accent); border-color: var(--accent); }
footer { margin-top: 32px; padding-block: 20px 32px; border-top: 1px solid var(--line); color: var(--ink-3); font: 500 11px/1.6 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; }
.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; }
@media (max-width: 600px) { .nav { padding: 12px 16px; gap: 10px; } .brand { font-size: 20px; } .brand span { display: none; } .nav-end { gap: 10px; } main, footer { width: calc(100% - 32px); } .plan-hero { padding: 40px 0 30px; } .intro { font-size: 18px; } .steps > li { padding: 24px 20px; } .steps > li::before { position: static; width: 40px; height: 40px; margin-bottom: 20px; border-radius: 10px; font-size: 15px; } .action { width: 100%; padding-inline: 14px; } }
@media (prefers-reduced-motion: reduce) { .action { transition: none; } .action:hover { transform: none; } }
@media print { :root, :root[data-theme] { --bg: #fff; --surface: #fff; --surface-2: #fff; --ink: #000; --ink-2: #222; --ink-3: #444; --accent: #000; --accent-ink: #fff; --line: #ccc; --line-2: #aaa; } body { background: white; font-size: 12pt; } .nav, footer, .plan-hero::before { display: none; } main { width: 100%; } .plan-hero { padding: 0 0 20px; } h1 { font-size: 40pt; } .steps > li { break-inside: avoid; box-shadow: none; padding-block: 20px; } .action { color: black; background: white; border-color: #777; } }

/* Shared substitute/student instructions remain expanded and printable. */
.jump-link { display: inline-block; margin-top: 4px; color: var(--accent); font-size: 15px; font-weight: 700; text-decoration: none; }
.jump-link:hover { text-decoration: underline; }
.sub-directions { padding: 32px 36px; margin-bottom: 44px; background: var(--surface); border: 1px solid var(--line-2); border-top: 3px solid var(--accent); border-radius: 18px; box-shadow: var(--shadow); }
.sub-notes { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px 36px; }
.sub-notes > div { padding-top: 20px; border-top: 1px solid var(--line); }
.sub-notes h3 { margin: 0 0 8px; font: 600 21px/1.2 var(--font-display); letter-spacing: -.015em; }
.sub-notes p { font-size: 16px; }
.sub-notes a { color: var(--accent); overflow-wrap: anywhere; }
.sub-report { grid-column: 1 / -1; }
.sub-report p { max-width: 90ch !important; }
.student-heading { margin-bottom: 26px; scroll-margin-top: 100px; }
.student-heading h2 { font-size: clamp(32px,5vw,48px); }
@media (max-width: 600px) { .sub-directions { padding: 24px 20px; margin-bottom: 32px; } .sub-notes { grid-template-columns: minmax(0,1fr); gap: 20px; } }
@media print { .jump-link { display: none; } .sub-directions { padding: 20px; box-shadow: none; } .sub-notes { gap: 12px 24px; } .sub-notes > div { break-inside: avoid; } .sub-notes p { font-size: 11pt; } }