:root {
  color-scheme: light;
  font: 16px/1.65 "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: #26352f;
  background: #f3f0e7;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --ink: #203b33;
  --muted: #65736a;
  --paper: #fffdf6;
  --line: #ded9c9;
  --accent: #9b573c;
  --handwritten: "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: #315f52; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid #bd7845;
  outline-offset: 3px;
}
.site-header, main, .site-footer { width: min(100% - 40px, 1000px); margin-inline: auto; }
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 0;
}
.brand { color: var(--ink); font-family: Georgia, serif; font-size: 21px; font-weight: 700; text-decoration: none; }
.back-to-game { color: #53675e; font-size: 14px; font-weight: 650; text-decoration-thickness: 1px; text-underline-offset: 3px; }
main { min-height: 60vh; padding: 20px 0 52px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-weight: 600; }
h1 { margin-bottom: 14px; font-size: clamp(38px, 7vw, 62px); line-height: 1.04; letter-spacing: -.035em; }
h2 { margin: 36px 0 14px; font-size: clamp(25px, 4vw, 34px); line-height: 1.2; }
h3 { margin-bottom: 12px; font-size: 23px; }
p { max-width: 72ch; }
.notebook-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, .63fr);
  align-items: center;
  gap: clamp(28px, 6vw, 74px);
  margin: 10px 0 54px;
}
.notebook-introduction { max-width: 620px; }
.eyebrow, .module-kicker, .cover-kicker {
  margin-bottom: 10px;
  color: #85533e;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
}
.subtitle { margin-bottom: 15px; color: #4e6157; font-size: clamp(18px, 2.3vw, 21px); line-height: 1.55; }
.disclaimer { margin: 0; color: #58685f; font-size: 14px; }
.notebook-cover {
  display: flex;
  min-height: 290px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px;
  border: 1px solid #315a49;
  border-radius: 9px 17px 17px 9px;
  background: linear-gradient(110deg, #244a3b, #315b49 86%, #244a3b 86%);
  box-shadow: 9px 10px 0 #ded5c2, 0 20px 38px #293b3022;
  color: #fff8e8;
  text-align: center;
}
.cover-kicker { color: #e8d8b4; }
.cover-mark { margin: 15px 0 10px; color: #e1c48d; font-family: Georgia, serif; font-size: 64px; line-height: 1; }
.cover-caption { max-width: 180px; margin-bottom: 18px; font-family: var(--handwritten); font-size: 18px; font-weight: 700; line-height: 1.4; }
.notebook-open, button, .secondary-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid #31594a;
  border-radius: 10px;
  background: #31594a;
  color: #fffdf6;
  font: inherit;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s ease, transform .15s ease;
}
.notebook-open { border-color: #e0c893; background: #fff7e5; color: #273e34; }
button:hover, .secondary-link:hover { background: #244437; }
.notebook-open:hover { background: #f4e9cf; transform: translateY(-1px); }
.notebook-dialog {
  width: min(calc(100% - 32px), 560px);
  max-height: min(82vh, 720px);
  padding: clamp(24px, 6vw, 42px);
  border: 1px solid #d9cfb9;
  border-radius: 14px;
  background: var(--paper);
  box-shadow: 0 28px 90px #14271e44;
  color: #34453b;
}
.notebook-dialog::backdrop { background: #17251fcc; backdrop-filter: blur(3px); }
.notebook-dialog h2 { margin: 0 0 18px; font-family: var(--handwritten); font-size: clamp(26px, 5vw, 34px); line-height: 1.25; }
.notebook-dialog p:not(.eyebrow) { margin-bottom: 16px; }
.dialog-actions { display: flex; justify-content: flex-end; margin-top: 25px; }
.dialog-actions button { background: var(--ink); }
.section-heading { margin: 0 0 18px; }
.section-heading .eyebrow { margin-bottom: 4px; }
.section-heading h2 { margin: 0; }
.module-block, .card, .entry, .concept-list li, .empty-page {
  margin: 14px 0;
  padding: clamp(18px, 3vw, 25px);
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--paper);
  box-shadow: 0 8px 24px #3444350b;
}
.module-block { position: relative; overflow: hidden; }
.module-block::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: #678271;
  content: "";
}
.module-heading { display: flex; align-items: baseline; gap: 10px; margin-bottom: 12px; }
.module-heading h3 { margin: 0; }
.module-kicker { margin: 0; font-size: 10px; }
.empty-note { margin: 0; color: var(--muted); font-size: 15px; }
.area-grid, .task-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.area-card, .task-card {
  display: grid;
  min-width: 0;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 5px 13px;
  padding: 15px;
  border: 1px solid #e5decd;
  border-radius: 11px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  transition: border-color .15s ease, background-color .15s ease, transform .15s ease;
}
.area-card:hover, .task-card:hover { transform: translateY(-1px); border-color: #7e9a83; background: #f8faf5; }
.area-mark { grid-row: span 2; color: #9b6849; font-family: Georgia, serif; font-size: 28px; }
.area-card strong, .area-card small { display: block; }
.area-card strong, .task-card strong { font-size: 16px; }
.area-card small, .task-description { display: block; color: var(--muted); font-size: 13px; line-height: 1.45; }
.area-count, .task-count { grid-column: 2; color: #718077; font-size: 12px; }
.task-grid { margin: 20px 0 30px; }
.task-card { grid-template-columns: minmax(0, 1fr); gap: 7px; min-height: 142px; align-content: start; }
.task-kicker, .note-kind { color: #85533e; font-size: 10px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.task-card .task-count { grid-column: auto; align-self: end; margin-top: 6px; }
.breadcrumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-bottom: 20px; color: #65736a; font-size: 13px; }
.breadcrumbs a { color: #49675a; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.crumb-divider { color: #9b8a72; }
.current-crumb { color: #3c5045; font-weight: 650; }
.search-label { display: block; margin: 22px 0 6px; color: #42564a; font-size: 14px; font-weight: 700; }
.task-search {
  width: min(100%, 520px);
  min-height: 46px;
  padding: 10px 13px;
  border: 1px solid #cfc9b9;
  border-radius: 9px;
  background: #fffdf6;
  color: var(--ink);
  font: inherit;
}
.task-search:focus-visible { outline: 3px solid #bd7845; outline-offset: 2px; }
.task-notes { margin: 28px 0; }
.task-notes h2 { margin-bottom: 12px; }
.note-card { border-left-color: #6f9077; }
.note-card h3 { font-family: var(--handwritten); font-size: clamp(19px, 2.5vw, 22px); line-height: 1.4; }
.note-body { margin-bottom: 0; white-space: pre-line; }
.note-kind { display: inline-block; margin-bottom: 8px; font-family: var(--handwritten); font-size: 12px; font-weight: 700; letter-spacing: .01em; text-transform: none; }
.area-card[hidden], .task-card[hidden], [hidden] { display: none !important; }
.concept-list { margin: 0; padding: 0; list-style: none; }
.badge {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  background: #e7eee5;
  color: #355246;
  font-size: 13px;
  font-weight: 700;
}
.card { border-left: 4px solid #b67a57; }
.card-row { display: grid; grid-template-columns: minmax(130px, .32fr) 1fr; gap: 8px 14px; padding: 11px 0; border-top: 1px solid #eee9dc; }
.card-row strong { color: #526459; }
.card-row span { overflow-wrap: anywhere; }
.prevention { border-left: 4px solid #78927a; padding-left: 12px; background: #f5f8f0; }
.entry { display: block; }
.entry summary { cursor: pointer; color: var(--ink); font-weight: 750; }
.entry p { margin: 14px 0 8px; }
.card-footer { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 14px; color: var(--muted); font-size: 13px; }
.stale { margin: 8px 0 0; color: #85533e; font-weight: 700; }
.ai-note { padding: 10px; border-radius: 8px; background: #f4edda; color: #534c37; }
.concept-list li { margin: 8px 0; }
.concept-list p { margin: 6px 0; }
.empty-page {
  display: grid;
  justify-items: center;
  margin: 30px 0;
  padding: clamp(28px, 7vw, 54px);
  background: repeating-linear-gradient(transparent 0 39px, #e8e3d6 40px), var(--paper);
  text-align: center;
}
.empty-page h2 { margin: 8px 0; }
.empty-page p { margin-bottom: 0; color: var(--muted); }
.empty-mark { color: #a56748; font-family: Georgia, serif; font-size: 32px; }
.share-row { margin: 24px 0; }
.status { padding: 12px; border-radius: 9px; background: #f4edda; color: #534c37; }
.site-footer { padding: 14px 0 28px; color: #65736a; font-size: 13px; }
.site-footer p { margin-bottom: 5px; }
.debug-panel { margin: 30px 0 0; padding: 18px; border: 1px dashed #9b573c; border-radius: 12px; color: #536258; font-size: 13px; overflow-wrap: anywhere; }
.debug-panel h2 { font-size: 20px; }
.debug-panel li { margin: 6px 0; }
.fatal { margin: 22px; padding: 16px; border: 2px solid #8b2424; border-radius: 10px; background: #fff; color: #711b1b; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.hidden { display: none !important; }

@media (max-width: 680px) {
  .site-header, main, .site-footer { width: min(100% - 32px, 1000px); }
  .notebook-hero { grid-template-columns: 1fr; gap: 26px; margin-top: 0; }
  .notebook-cover { min-height: 235px; }
}
@media (max-width: 480px) {
  .site-header { padding: 14px 0; }
  main { padding: 14px 0 38px; }
  h1 { font-size: clamp(28px, 8vw, 34px); }
  .notebook-cover { min-height: 215px; }
  .module-heading { flex-direction: column; align-items: flex-start; gap: 3px; }
  .card-row { grid-template-columns: 1fr; gap: 2px; }
  .area-grid, .task-grid { grid-template-columns: 1fr; }
  .area-card { grid-template-columns: 36px minmax(0, 1fr); }
  .area-count { grid-column: 2; }
  .task-card { min-height: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}