/*--------------------------------------------------------------------
  BI Event Measurement — v1.1 Planning Pages
  Shared design system. Mirrors /docs/index.html aesthetic.
---------------------------------------------------------------------*/
:root {
  --bg:         #f7f8fb;
  --bg-tint:    #eef1f7;
  --surface:    #ffffff;
  --surface-2:  #f3f5fa;
  --border:     #e3e7ef;
  --border-strong: #c8d0de;
  --text:       #0b1220;
  --text-2:     #4b5566;
  --text-3:     #8b94a6;
  --text-mute:  #b6bdcc;
  --accent:       #2748e6;
  --accent-2:     #3d5cf0;
  --accent-tint:  #eaf0ff;
  --accent-ring:  rgba(39,72,230,.18);
  --c-validated: #15a364;
  --c-tracking:  #d6362b;
  --c-site:      #c97a1d;
  --c-robot:     #6e51df;
  --c-timeout:   #5b6473;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI Variable", "Segoe UI", "Helvetica Neue", "Arial", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "IBM Plex Mono", Menlo, Consolas, monospace;
  --r:   12px;
  --r-sm: 8px;
  --r-pill: 999px;
  --shadow-sm: 0 1px 0 rgba(11,18,32,.04), 0 1px 2px rgba(11,18,32,.04);
  --shadow:    0 1px 0 rgba(11,18,32,.04), 0 4px 14px rgba(11,18,32,.06);
  --shadow-lg: 0 1px 0 rgba(11,18,32,.04), 0 16px 40px rgba(11,18,32,.10);
  --maxw:   1180px;
  --gutter: clamp(20px, 4vw, 48px);
  --t-fast: .14s cubic-bezier(.2,.7,.2,1);
  --t:      .22s cubic-bezier(.2,.7,.2,1);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #0a0d14;
    --bg-tint:   #0e131c;
    --surface:   #111723;
    --surface-2: #161d2c;
    --border:    #1f2738;
    --border-strong: #2c364c;
    --text:      #ecf0f7;
    --text-2:    #97a2b8;
    --text-3:    #6c7791;
    --text-mute: #4d5874;
    --accent:       #6c8aff;
    --accent-2:     #8aa3ff;
    --accent-tint:  #0f1a38;
    --accent-ring:  rgba(108,138,255,.25);
    --c-validated: #35d39a;
    --c-tracking:  #f37265;
    --c-site:      #f0a960;
    --c-robot:     #a797ff;
    --c-timeout:   #95a0b6;
    --shadow-sm: 0 1px 0 rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
    --shadow:    0 1px 0 rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.4);
    --shadow-lg: 0 1px 0 rgba(0,0,0,.4), 0 20px 50px rgba(0,0,0,.5);
  }
}

*,*::before,*::after { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.6;
  letter-spacing: -0.008em;
  background-image:
    radial-gradient(60rem 30rem at 50% -10rem, var(--accent-tint), transparent 60%),
    radial-gradient(40rem 22rem at 90% -6rem, color-mix(in oklab, var(--accent) 22%, transparent), transparent 60%),
    radial-gradient(circle at 1px 1px, color-mix(in oklab, var(--text) 8%, transparent) 1px, transparent 0);
  background-size: auto, auto, 22px 22px;
  background-repeat: no-repeat, no-repeat, repeat;
  background-attachment: fixed, fixed, fixed;
}
::selection { background: var(--accent); color: #fff; }
.shell { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 22px; height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 14.5px; letter-spacing: -0.01em; color: var(--text); text-decoration: none; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.18), 0 2px 6px var(--accent-ring);
  display: grid; place-items: center; color: #fff;
  font-family: var(--mono); font-size: 13px; font-weight: 600;
}
.brand-mark::after { content: "BI"; }
.brand .sub { color: var(--text-3); font-weight: 500; }
.nav-links { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.nav-links a {
  color: var(--text-2); text-decoration: none;
  padding: 8px 12px; border-radius: var(--r-sm);
  font-size: 13.5px; font-weight: 500;
  transition: color var(--t-fast), background var(--t-fast);
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a.active { color: var(--accent); background: var(--accent-tint); }
.nav-cta {
  margin-left: 6px;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: var(--r-sm);
  font-size: 13.5px; font-weight: 600;
  background: var(--text); color: var(--bg); text-decoration: none;
  transition: transform var(--t-fast), background var(--t-fast);
}
.nav-cta:hover { transform: translateY(-1px); background: var(--accent); color: #fff; }
.nav-cta svg { width: 14px; height: 14px; }
@media (max-width: 1000px) { .nav-links { display: none; } }

/* hero */
.hero { padding: 64px 0 40px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 11px 5px 8px;
  border-radius: var(--r-pill);
  background: var(--surface); border: 1px solid var(--border);
  font-size: 12.5px; color: var(--text-2);
  box-shadow: var(--shadow-sm);
}
.pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}
.pill .dot.draft { background: var(--c-site); box-shadow: 0 0 0 3px color-mix(in oklab, var(--c-site) 25%, transparent); }
.pill .dot.ready { background: var(--c-validated); box-shadow: 0 0 0 3px color-mix(in oklab, var(--c-validated) 25%, transparent); }
.pill .dot.shipped { background: var(--c-validated); box-shadow: 0 0 0 3px color-mix(in oklab, var(--c-validated) 25%, transparent); }
.pill .dot.review { background: var(--c-robot); box-shadow: 0 0 0 3px color-mix(in oklab, var(--c-robot) 25%, transparent); }
.pill b { color: var(--text); font-weight: 600; }
h1 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(34px, 5.2vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.028em;
  margin: 18px 0 16px;
  max-width: 22ch;
}
h1 .grad {
  background: linear-gradient(110deg, var(--accent), color-mix(in oklab, var(--accent) 60%, #00d4b8 40%));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.lede { font-size: 17.5px; line-height: 1.55; color: var(--text-2); max-width: 64ch; margin: 0 0 24px; }
.meta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.meta-row .pill { font-family: var(--mono); font-size: 12px; letter-spacing: 0; }
.meta-row .pill .k { color: var(--text-3); margin-right: 4px; }
.meta-row .pill .v { color: var(--text); font-weight: 600; }

/* TOC */
.toc-card {
  margin-top: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px 22px 14px;
  box-shadow: var(--shadow-sm);
}
.toc-card h4 {
  margin: 0 0 10px;
  font-family: var(--mono); font-size: 11.5px;
  letter-spacing: .10em; text-transform: uppercase;
  color: var(--text-3); font-weight: 600;
}
.toc {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 4px 18px;
}
.toc li { font-size: 13.5px; }
.toc a {
  display: inline-flex; align-items: baseline; gap: 8px;
  color: var(--text-2); text-decoration: none;
  padding: 4px 0;
  transition: color var(--t-fast);
}
.toc a:hover { color: var(--accent); }
.toc a .n {
  font-family: var(--mono); color: var(--text-3); font-size: 11.5px;
  min-width: 28px;
}

/* sections */
section { padding: 56px 0; scroll-margin-top: 72px; }
.sec-head { margin-bottom: 24px; max-width: 760px; }
.sec-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11.5px;
  letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--accent); font-weight: 600;
}
.sec-kicker::before { content: ""; width: 18px; height: 1px; background: currentColor; }
.sec-head h2 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.18;
  letter-spacing: -0.022em;
  margin: 10px 0 8px;
}
.sec-head p { color: var(--text-2); font-size: 16px; margin: 0; max-width: 62ch; }

.prose { max-width: 68ch; color: var(--text-2); }
.prose p { margin: 0 0 14px; }
.prose p.lead { color: var(--text); font-size: 17px; }
.prose strong { color: var(--text); font-weight: 600; }
.prose code, code.k {
  font-family: var(--mono);
  font-size: 0.88em;
  padding: 1.5px 6px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
}
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 14px; }
.prose li { margin: 4px 0; }
.prose li::marker { color: var(--text-3); }

/* decision Q&A card */
.qa { display: grid; gap: 18px; }
.qa-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.qa-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: linear-gradient(var(--accent), var(--accent-2));
  border-radius: var(--r) 0 0 var(--r);
}
.qa-card.revised::before { background: linear-gradient(var(--c-site), color-mix(in oklab, var(--c-site) 70%, white)); }
.qa-card.blocker::before { background: linear-gradient(var(--c-tracking), color-mix(in oklab, var(--c-tracking) 70%, white)); }
.qa-card.deferred::before { background: linear-gradient(var(--c-timeout), color-mix(in oklab, var(--c-timeout) 70%, white)); }
.qa-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em;
  color: var(--accent);
  text-transform: uppercase; font-weight: 600;
  margin-bottom: 6px;
}
.qa-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.qa-card.revised .qa-tag { color: var(--c-site); }
.qa-card.blocker .qa-tag { color: var(--c-tracking); }
.qa-card.deferred .qa-tag { color: var(--c-timeout); }
.qa-card h3 { margin: 0 0 8px; font-size: 17px; font-weight: 600; letter-spacing: -0.012em; }
.qa-card .qa-body { color: var(--text-2); font-size: 14.5px; }
.qa-card .qa-body p { margin: 0 0 10px; }
.qa-card .qa-body ul { margin: 6px 0 10px; padding-left: 20px; }
.qa-card .qa-body li { margin: 4px 0; }
.qa-card .qa-body strong { color: var(--text); }
.qa-card .qa-body code { font-family: var(--mono); font-size: 0.88em; padding: 1px 5px; border-radius: 4px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text); }

/* code block */
pre.code {
  margin: 8px 0 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text);
}
pre.code .c1 { color: var(--text-3); }
pre.code .kw { color: var(--accent); }
pre.code .st { color: var(--c-site); }
pre.code .bl { color: var(--c-robot); }

/* tables */
.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}
.tbl { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px; }
.tbl th, .tbl td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.tbl thead th {
  background: var(--surface-2);
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--text-3); font-weight: 600;
}
.tbl tbody tr { transition: background var(--t-fast); }
.tbl tbody tr:hover { background: color-mix(in oklab, var(--accent-tint) 50%, transparent); }
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl td.mono, .tbl th.mono { font-family: var(--mono); font-size: 12.5px; color: var(--text); }
.tbl td.dim { color: var(--text-3); }
.tbl td.center, .tbl th.center { text-align: center; }

/* chips */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 11.5px;
  font-weight: 500;
  padding: 2px 9px 2px 8px;
  border-radius: var(--r-pill);
  background: color-mix(in oklab, currentColor 12%, transparent);
  color: currentColor;
  line-height: 1.6;
  white-space: nowrap;
  border: 1px solid color-mix(in oklab, currentColor 25%, transparent);
}
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.chip-validated { color: var(--c-validated); }
.chip-tracking  { color: var(--c-tracking); }
.chip-site      { color: var(--c-site); }
.chip-robot     { color: var(--c-robot); }
.chip-timeout   { color: var(--c-timeout); }
.chip-accent    { color: var(--accent); }

/* phase cards (index page) */
.phase-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.phase-card {
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--text);
  transition: transform var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
  position: relative;
  overflow: hidden;
}
.phase-card::before {
  content: ""; position: absolute; left: 0; top: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0; transition: opacity var(--t-fast);
}
.phase-card:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow); }
.phase-card:hover::before { opacity: 1; }
.phase-card .pn {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em;
  color: var(--text-3); font-weight: 600; text-transform: uppercase;
  margin-bottom: 6px;
}
.phase-card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; letter-spacing: -0.012em; line-height: 1.25; }
.phase-card p { margin: 0 0 12px; color: var(--text-2); font-size: 14px; line-height: 1.55; flex: 1; }
.phase-card .phase-meta { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }

/* checklist (success criteria) */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; counter-reset: ck; }
.checklist li {
  counter-increment: ck;
  display: grid; grid-template-columns: 28px 1fr; gap: 12px;
  align-items: baseline;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-2);
  font-size: 14.5px;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.checklist li:hover { border-color: var(--border-strong); background: color-mix(in oklab, var(--surface) 92%, var(--accent-tint)); }
.checklist li::before {
  content: counter(ck);
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent-tint); color: var(--accent);
  border: 1px solid color-mix(in oklab, var(--accent) 25%, transparent);
  font-family: var(--mono); font-weight: 600; font-size: 11px;
  transform: translateY(2px);
}
.checklist li strong { color: var(--text); font-weight: 600; }
.checklist li code { font-family: var(--mono); font-size: 0.88em; padding: 1px 5px; border-radius: 4px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text); }

/* file list */
.files {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 4px 0;
  box-shadow: var(--shadow-sm);
}
.files .frow {
  display: grid; grid-template-columns: 72px 1fr;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  border-top: 1px solid var(--border);
  font-size: 13.5px;
}
.files .frow:first-child { border-top: 0; }
.files .frow .ftag {
  display: inline-flex; justify-content: center;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em;
  padding: 2px 8px; border-radius: var(--r-pill);
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  color: var(--accent);
  border: 1px solid color-mix(in oklab, var(--accent) 25%, transparent);
  font-weight: 600;
  text-transform: uppercase;
}
.files .frow .ftag.mod { color: var(--c-site); background: color-mix(in oklab, var(--c-site) 12%, transparent); border-color: color-mix(in oklab, var(--c-site) 25%, transparent); }
.files .frow .ftag.del { color: var(--c-tracking); background: color-mix(in oklab, var(--c-tracking) 12%, transparent); border-color: color-mix(in oklab, var(--c-tracking) 25%, transparent); }
.files .frow .fpath { font-family: var(--mono); font-size: 12.5px; color: var(--text); word-break: break-all; }
.files .frow .fnote { color: var(--text-3); font-size: 12.5px; padding-left: 12px; }
@media (max-width: 700px) {
  .files .frow { grid-template-columns: 1fr; gap: 4px; padding: 12px 14px; }
}

/* callout — codex review */
.callout {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.callout::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: linear-gradient(var(--c-robot), color-mix(in oklab, var(--c-robot) 70%, white));
}
.callout.tone-good::before { background: linear-gradient(var(--c-validated), color-mix(in oklab, var(--c-validated) 70%, white)); }
.callout.tone-bad::before  { background: linear-gradient(var(--c-tracking), color-mix(in oklab, var(--c-tracking) 70%, white)); }
.callout.tone-warn::before { background: linear-gradient(var(--c-site), color-mix(in oklab, var(--c-site) 70%, white)); }
.callout .icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: color-mix(in oklab, var(--c-robot) 14%, transparent); color: var(--c-robot);
  display: grid; place-items: center;
  border: 1px solid color-mix(in oklab, var(--c-robot) 25%, transparent);
  font-family: var(--mono); font-weight: 600; font-size: 13px;
}
.callout.tone-good .icon { background: color-mix(in oklab, var(--c-validated) 14%, transparent); color: var(--c-validated); border-color: color-mix(in oklab, var(--c-validated) 25%, transparent); }
.callout.tone-bad  .icon { background: color-mix(in oklab, var(--c-tracking) 14%, transparent);  color: var(--c-tracking);  border-color: color-mix(in oklab, var(--c-tracking) 25%, transparent); }
.callout.tone-warn .icon { background: color-mix(in oklab, var(--c-site) 14%, transparent);     color: var(--c-site);      border-color: color-mix(in oklab, var(--c-site) 25%, transparent); }
.callout h3 { margin: 0 0 2px; font-size: 16px; font-weight: 600; }
.callout .meta { font-family: var(--mono); font-size: 11.5px; color: var(--text-3); letter-spacing: .04em; margin-bottom: 10px; }
.callout p { margin: 0 0 8px; color: var(--text-2); font-size: 14.5px; }
.callout ul { margin: 6px 0 0; padding-left: 20px; }
.callout li { color: var(--text-2); font-size: 14.5px; margin: 4px 0; }
.callout li strong { color: var(--text); font-weight: 600; }
.callout code { font-family: var(--mono); font-size: 0.88em; padding: 1px 5px; border-radius: 4px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text); }

/* dependency graph (inline SVG) */
.dep-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}
.dep-card svg { width: 100%; height: auto; min-width: 600px; display: block; }

/* prev/next nav */
.pnav {
  display: grid; gap: 14px;
  grid-template-columns: 1fr 1fr;
  margin-top: 56px;
}
.pnav a {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}
.pnav a:hover { transform: translateY(-1px); border-color: var(--accent); box-shadow: var(--shadow); }
.pnav .nx { text-align: right; }
.pnav .lbl { font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); }
.pnav .ttl { font-size: 14.5px; font-weight: 600; color: var(--text); }
@media (max-width: 640px) { .pnav { grid-template-columns: 1fr; } }

/* footer */
footer {
  margin-top: 40px;
  padding: 28px 0 60px;
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 18px; align-items: baseline;
  font-size: 13px; color: var(--text-3);
}
footer .sp { flex: 1; }
footer a { color: var(--text-2); text-decoration: none; }
footer a:hover { color: var(--accent); }

/* entrance */
@media (prefers-reduced-motion: no-preference) {
  .hero > * { opacity: 0; transform: translateY(6px); animation: rise .5s cubic-bezier(.2,.7,.2,1) forwards; }
  .hero .pill { animation-delay: 0ms; }
  .hero h1 { animation-delay: 60ms; }
  .hero .lede { animation-delay: 120ms; }
  .hero .meta-row { animation-delay: 160ms; }
  .hero .toc-card { animation-delay: 220ms; }
}
@keyframes rise { to { opacity: 1; transform: none; } }

/* print */
@media print {
  body { background: #fff; }
  .nav, .nav-cta, footer a { display: none; }
  .qa-card, .callout, .table-card, .phase-card, .checklist li, .files { box-shadow: none; break-inside: avoid; }
  section { padding: 24px 0; }
}