/* Practical reading notes: real sheets first; instructions alongside the controls. */
:root{--ink:#192e46;--muted:#526477;--blue:#086c66;--line:#d3dde5;--paper:#fff;--soft:#edf5f5;--white:#fff}
body{background:#fff;letter-spacing:.015em}.wrap{max-width:1180px}.preview-bar{background:#edf2f6;color:var(--muted);font-size:.75rem;padding:3px 0}.header-inner{min-height:68px;gap:24px}.site-header{background:#192e46;border-bottom:2px solid #3da99a}.site-header .brand,.site-header .main-nav a{color:#fff}.brand strong{font-size:1.25rem}.brand-mark{height:29px;width:25px;border-color:#70c4b6}.brand-mark::before,.brand-mark::after{background:#70c4b6}.site-header a:focus-visible{outline-color:#f2c578}.main-nav{font-size:.875rem}.eyebrow{font-size:.875rem;letter-spacing:.04em}.site-footer{margin-top:0;border-top:1px solid var(--line);background:#f0f3f5;color:var(--muted)}.text-link{font-size:1rem}.copy-button{background:var(--blue)}.copy-button:hover{background:#07544f}.screen{min-width:0}.screen-window{border-color:#c5d1db}.screen figcaption{font-size:.8125rem;color:var(--muted)}
/* Home: a single concrete article, then shortcuts into its procedures. */
.home-intro{padding:28px 0 24px}.home-intro h1{font:600 1.125rem/1.7 var(--sans)}.home-intro p{font-size:.875rem;color:var(--muted);margin:5px 0 0}.notebook-example{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;padding:28px 0 40px;border-top:1px solid var(--ink);align-items:center}.home-result{margin:0}.home-result svg{min-width:0}.notebook-example article{min-width:0}.notebook-example .eyebrow{margin:0 0 12px}.notebook-example h2{font:650 1.5rem/1.65 var(--sans);margin:0 0 16px}.notebook-example h2 a{color:var(--ink);text-decoration:none}.notebook-example h2 a:hover{text-decoration:underline}.notebook-example article>p{font-size:1rem}.notebook-example .example-meta{font-size:.8125rem;color:var(--muted);margin:16px 0 0}.notebook-index,.notebook-policy{display:grid;grid-template-columns:210px minmax(0,1fr);gap:40px;border-top:1px solid var(--line);padding:32px 0}.margin-heading h2{font:600 1.25rem/1.65 var(--sans)}.margin-heading .eyebrow{display:none}.margin-heading p{font-size:.875rem;color:var(--muted);margin:10px 0}.index-rows>a{display:grid;grid-template-columns:25px minmax(0,1fr) 20px;gap:12px;align-items:baseline;padding:13px 0;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line)}.index-rows>a:first-child{padding-top:0}.index-rows>a:last-child{border:0}.index-rows>a:hover strong{text-decoration:underline}.index-rows strong{font-size:1rem;font-weight:600}.index-rows small{display:block;color:var(--muted);font-size:.875rem;margin:3px 0}.index-no{font-size:.8125rem;color:var(--muted)}.notebook-policy{padding-bottom:44px}.notebook-policy p{font-size:1rem;max-width:46em}
/* Article opening: short title, large source sheet, specific observations. */
.notebook-guide .breadcrumb{padding-top:18px;margin-bottom:20px;font-size:.8125rem}.notebook-guide .article-title{margin:0;max-width:860px;padding-bottom:18px}.notebook-guide .article-title .tag{border:0;padding:0;font-size:.8125rem;margin-bottom:10px}.notebook-guide .article-title h1{font:650 1.75rem/1.5 var(--sans);text-wrap:initial;margin:0 0 10px}.notebook-guide .guide-lead{font-size:1rem;margin:0 0 10px;max-width:48em}.notebook-guide .meta{font-size:.8125rem;margin:0}.sheet-study{border-top:1px solid var(--ink);padding:20px 0 28px}.study-heading{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap;margin-bottom:18px}.study-heading h2{font:600 1.125rem/1.7 var(--sans)}.study-heading>span{font-size:.8125rem;color:var(--muted)}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 238px;gap:32px;align-items:start}.study-layout>.screen{margin:0}.reading-notes{font-size:.875rem}.reading-notes>div{border-left:2px solid #b4823e;padding-left:14px;margin:0 0 20px}.reading-notes h3{font-size:1rem;margin:0 0 5px}.reading-notes p{margin:0}.reading-notes .cell-ref{font-size:.8125rem;color:var(--muted);margin-bottom:4px}.reading-notes>a{font-size:.875rem;font-weight:600}
/* The index is secondary; screenshots and text share the reading surface. */
.guide-workspace{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:52px;align-items:start;border-top:1px solid var(--line);padding-top:30px}.notebook-guide .visual-flow{grid-column:2;grid-row:1;position:sticky;top:24px;display:block;border:0;margin:0}.notebook-guide .visual-flow .eyebrow{margin:0 0 12px;font-size:.8125rem;color:var(--muted)}.notebook-guide .visual-flow a{display:block;padding:9px 0;border:0;line-height:1.7}.notebook-guide .visual-flow a::after{content:none}.notebook-guide .visual-flow a>span{display:inline;font-size:.8125rem;margin-right:7px}.notebook-guide .visual-flow strong{font-size:.875rem;font-weight:500}.notebook-guide .visual-flow small{display:none}.notebook-guide .visual-flow a:hover{background:none;text-decoration:underline}.notebook-guide .guide-reading{grid-column:1;grid-row:1;min-width:0;width:100%;max-width:none;margin:0}.notebook-guide .guide-section{padding-top:0;margin:0 0 38px}.notebook-guide .guide-section+.guide-section{padding-top:30px}.notebook-guide .step-heading{gap:12px;margin-bottom:18px}.notebook-guide .step-heading>span{font-size:.875rem;font-weight:500}.notebook-guide .guide-section h2{font:650 1.375rem/1.65 var(--sans)}.notebook-guide .step-heading h2{margin:0}.notebook-guide .guide-section h3{font-size:1.125rem}.notebook-guide .inline-note{background:none;border-left:2px solid #b4823e;padding:0 0 0 14px;color:#665331;font-size:.9375rem;margin:20px 0}.notebook-guide .sample-box{background:#f1f6f6;border:0;padding:18px 22px;margin:22px 0}.notebook-guide .sample-box p{margin-bottom:12px}.notebook-guide .sample-box details{font-size:.875rem}.notebook-guide .instruction-pair{grid-template-columns:310px minmax(0,1fr);gap:32px;margin:24px 0 36px}.notebook-guide .instruction-pair>.menu-screen{grid-column:1;grid-row:1;margin:0}.notebook-guide .instruction-pair>div{grid-column:2;grid-row:1}.notebook-guide .menu-screen{width:100%;max-width:310px}.notebook-guide .action-list{padding-left:22px;margin:16px 0}.notebook-guide .action-list li{padding-left:3px;margin-bottom:12px}.notebook-guide .outcome{font-size:1rem;border:0;padding-top:6px;margin-bottom:0}.notebook-guide .fix-grid{display:block;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.notebook-guide .fix-grid>div{display:flex;gap:18px;flex-wrap:wrap;align-items:baseline;border:0;background:none;padding:12px 0}.notebook-guide .fix-grid>div+div{border-top:1px solid var(--line)}.notebook-guide .fix-grid span{margin:0;min-width:140px}.notebook-guide .fix-grid strong{font-size:1rem}.notebook-guide .date-rule{background:#f8f4e9;border:0;padding:14px 16px;color:#665331;margin:22px 0}.notebook-guide .date-rule strong{font-size:1rem}.notebook-guide .check-details{background:none;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0}.notebook-guide .finish-panel{background:none;border:0;border-left:3px solid var(--blue);padding:0 0 0 22px;margin:6px 0 38px}.notebook-guide .finish-heading{display:block}.notebook-guide .finish-heading .eyebrow{font-size:.8125rem;margin-bottom:6px}.notebook-guide .finish-heading h2{font:600 1.25rem/1.7 var(--sans)}.notebook-guide .finish-panel>p{font-size:.9375rem;margin:12px 0}.notebook-guide .finish-panel .screen{margin:18px 0 0}.notebook-guide #next{padding-top:24px}.notebook-guide #next h2{font-size:1.125rem}.notebook-guide #reset{border-top:1px solid var(--line);padding-top:26px}
@media(max-width:1000px){.guide-workspace{grid-template-columns:minmax(0,1fr) 150px;gap:28px}.notebook-guide .instruction-pair{grid-template-columns:260px minmax(0,1fr);gap:24px}.study-layout{grid-template-columns:minmax(0,1fr) 210px;gap:24px}.notebook-example{gap:28px}}
@media(max-width:899px){.header-inner{flex-direction:row;align-items:center;padding-top:16px;padding-bottom:16px;flex-wrap:wrap;gap:14px}.main-nav{width:auto}.guide-workspace{display:flex;flex-direction:column;gap:0}.notebook-guide .visual-flow{position:static;width:100%;display:flex;flex-wrap:wrap;gap:4px 20px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:28px}.notebook-guide .visual-flow .eyebrow{width:100%;margin:0}.notebook-guide .visual-flow a{padding:4px 0}.notebook-guide .instruction-pair{grid-template-columns:310px minmax(0,1fr)}.study-layout{grid-template-columns:minmax(0,1fr)}.reading-notes{display:grid;grid-template-columns:1fr 1fr;gap:16px}.reading-notes>div{margin:0}.reading-notes>a{grid-column:1/-1}.notebook-example{grid-template-columns:1fr}.notebook-example article{max-width:42em}.home-result svg{min-width:0}}
@media(max-width:600px){.wrap{padding-left:22px;padding-right:22px}.brand strong{font-size:1.125rem}.main-nav{font-size:.875rem;gap:18px}.main-nav a{padding:0}.header-inner{gap:12px}.home-intro{padding:22px 0}.notebook-example{padding:20px 0 30px;gap:20px}.notebook-example h2{font-size:1.375rem}.notebook-index,.notebook-policy{grid-template-columns:1fr;gap:16px;padding:25px 0}.notebook-policy{padding-bottom:34px}.notebook-guide .article-title h1{font-size:1.4375rem}.notebook-guide .breadcrumb{font-size:.75rem;margin-bottom:16px}.study-heading{gap:4px;margin-bottom:14px}.study-heading>span{width:100%}.reading-notes{grid-template-columns:1fr;gap:18px}.sheet-study{padding-bottom:24px}.notebook-guide .instruction-pair{display:flex;flex-direction:column;gap:18px}.notebook-guide .instruction-pair>.menu-screen{order:-1;max-width:310px;margin:0 auto}.notebook-guide .instruction-pair>div{width:100%}.notebook-guide .guide-section h2{font-size:1.25rem}.notebook-guide .sample-box{padding:16px}.notebook-guide .finish-panel{padding-left:14px}.notebook-guide .fix-grid>div{gap:4px 16px}.notebook-guide .screen:not(.menu-screen) svg{min-width:500px}.index-rows>a{grid-template-columns:22px minmax(0,1fr) 16px;gap:8px}}
@media print{.site-header{background:white}.site-header .brand{color:var(--ink)}.guide-workspace{display:block}.notebook-guide .visual-flow{display:none}.study-layout{display:block}.reading-notes{margin-top:16px}.site-footer{background:white}.notebook-guide .instruction-pair{break-inside:avoid}}

/* Supporting editorial policy page. */
.about-reading{max-width:760px;padding:0 0 32px}.about-reading h1{font:650 1.75rem/1.55 var(--sans);margin:0 0 20px}.about-lead{font-size:1.0625rem}.about-reading section{margin-top:30px}.about-reading h2{font:650 1.125rem/1.65 var(--sans);margin:0 0 14px}.about-reading p{font-size:1rem}.about-reading .article-end{margin-top:30px}@media(max-width:600px){.about-reading h1{font-size:1.5rem}.about-reading{padding-bottom:20px}}

/* Footer links remain usable on small screens and with larger text. */
.footer-inner{flex-wrap:wrap;gap:12px 24px}.footer-links{display:flex;flex-wrap:wrap;gap:12px 24px}.about-reading a{overflow-wrap:anywhere}.about-reading li{margin-block:10px}.about-reading ul{padding-left:1.5em}