/* CASE online: the Lab notebook look (paper, ink, marker green), system fonts only. */
:root {
  --paper: #f4efe4;
  --card: #fffdf8;
  --ink: #1f2a44;
  --ink-2: #5f6678;
  --line: #ddd5c4;
  --green: #0f6e56;
  --green-soft: #e3f0ea;
  --heading: Georgia, 'Times New Roman', serif;
  --body: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.55 var(--body); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; z-index: 2; padding: 0.5rem 0.75rem; background: var(--card); border: 2px solid var(--green); border-radius: 0.5rem; }
.top { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 0.75rem 1.5rem; max-width: 72rem; margin: 0 auto; padding: 1.25rem 1rem 0.75rem; }
.eyebrow { margin: 0; color: var(--green); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
h1 { margin: 0.1rem 0 0; font: 600 clamp(1.5rem, 3vw, 2.1rem)/1.2 var(--heading); }
h2 { margin: 0 0 0.6rem; font: 600 1.35rem/1.25 var(--heading); }
h3 { margin: 0; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--green); }
.voice { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; font-size: 0.9rem; color: var(--ink-2); }
button { font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 0.3rem 0.8rem; cursor: pointer; }
button:hover { border-color: var(--green); }
button:focus-visible, a:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; }
button[aria-pressed='true'] { background: var(--green); border-color: var(--green); color: #fff; }
main { max-width: 72rem; margin: 0 auto; padding: 0 1rem 1rem; }
.status { margin: 1rem 0; padding: 1rem; background: var(--card); border: 1px solid var(--line); border-radius: 0.75rem; }
.columns { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 1rem; align-items: start; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 1rem; padding: 1.1rem 1.25rem; }
.unit { margin: -0.3rem 0 0.5rem; color: var(--ink-2); }
.block { padding: 0.65rem 0; border-top: 1px solid var(--line); }
.block:first-of-type { border-top: 0; }
.block-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.block p { margin: 0.25rem 0 0; }
.pre { white-space: pre-line; }
.read { padding: 0.15rem 0.6rem; font-size: 0.8rem; flex: none; }
.agenda, .targets, .questions { margin: 0.35rem 0 0; padding-left: 1.4rem; }
.agenda li, .targets li, .questions > li { margin: 0.3rem 0; }
.agenda small { display: block; color: var(--ink-2); font-size: 0.85rem; }
.choices { margin: 0.25rem 0 0; padding-left: 1.4rem; }
.vocab { display: grid; gap: 0.6rem; margin: 0.4rem 0 0; padding: 0; list-style: none; }
.vocab li { display: flex; gap: 0.75rem; align-items: flex-start; }
.vocab img { width: 4.5rem; height: 4.5rem; object-fit: cover; border-radius: 0.5rem; border: 1px solid var(--line); flex: none; }
.vocab li > div { flex: 1; min-width: 0; }
.links { margin: 0.35rem 0 0; padding-left: 1.2rem; }
a { color: var(--green); }
.prompt { margin: 0 0 0.6rem; padding: 0.6rem 0.8rem; border-radius: 0.6rem; background: var(--green-soft); color: var(--green); font-weight: 700; }
.scale { margin: 0.35rem 0 0; padding: 0; list-style: none; }
.scale li { display: flex; gap: 0.6rem; margin: 0.3rem 0; }
.scale b { display: inline-grid; place-items: center; min-width: 1.8rem; height: 1.8rem; padding: 0 0.45rem; border-radius: 999px; background: var(--green-soft); color: var(--green); flex: none; }
.foot { max-width: 72rem; margin: 0 auto; padding: 0.5rem 1rem 2rem; color: var(--ink-2); font-size: 0.85rem; }
/* The Newline: big room, readable from the back. */
@media (min-width: 1600px) { body { font-size: 22px; } }
@media (max-width: 760px) { .columns { grid-template-columns: 1fr; } .top { align-items: flex-start; } body { font-size: 16px; } }
.framework-title { font-weight: 700; }
.focus-note { margin: 0.2rem 0 0; color: var(--ink-2); font-size: 0.85rem; }
.scale li.is-focus { padding: 0.35rem 0.5rem; margin-left: -0.5rem; border-radius: 0.6rem; background: var(--green-soft); }
.scale li.is-focus b { background: var(--green); color: #fff; }
.scale em { margin-left: auto; color: var(--green); font-size: 0.8rem; font-style: normal; font-weight: 700; white-space: nowrap; }
.scale li { align-items: flex-start; }