/* F · Exercise book
   A squared notebook page, marked in red pen by a teacher who actually looked.
   The grid is a texture, not a surface to read on: the page carries a paper
   wash so copy sits on paper, and anything that matters (sheets, reports,
   tables, the price) is lifted onto a solid white card above it.
   Bricolage Grotesque for headings, Public Sans for the text, Kalam only for
   what the pen writes. */
:root{
  --paper:#faf9f5;--surface:#fff;--sheet:rgba(255,255,255,.58);
  --grid:rgba(38,67,120,.085);--margin:#e6aca9;
  --ink:#1e222a;--muted:#555b67;--line:#dbe0e9;--rule:#eaeef4;
  --pen:#c62f2a;--pen-deep:#a3211d;--pencil:#6f737c;
  --highlight:#fff6da;--highlight-edge:#ecd9a4;
  --cover:#1f2a44;--cover-deep:#161e33;--accent:var(--pen);
  --display:'Bricolage Grotesque','Helvetica Neue',Arial,sans-serif;--body:'Public Sans',Helvetica,Arial,sans-serif;--mono:'Public Sans',monospace;--hand:'Kalam',cursive;
  --wrap:1200px;--cell:26px;--marginw:108px;
  --card:0 1px 2px rgba(25,36,60,.05),0 24px 44px -32px rgba(25,36,60,.5);
  --card-hi:0 2px 4px rgba(25,36,60,.06),0 30px 56px -30px rgba(25,36,60,.55);
}
body{font-size:17px;line-height:1.62;color:var(--ink);background-color:var(--paper);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:var(--cell) var(--cell);background-position:0 0}
h1,h2,h3,h4{font-weight:600;letter-spacing:-.02em}
h1{font-size:clamp(38px,4.4vw,62px);line-height:1.02;font-weight:700;letter-spacing:-.033em}
h2{font-size:clamp(28px,3vw,42px);line-height:1.07;letter-spacing:-.028em}
h3{font-size:clamp(20px,1.5vw,23px);line-height:1.22}
h4{font-family:var(--body)}
a:hover{color:var(--pen)}
strong{font-weight:600}
.note,.small{font-size:14.5px;line-height:1.55;color:var(--muted)}
.sample-label{font-size:11px;letter-spacing:.1em;color:#7b8190}

/* Cover boards */
.cover{background:var(--cover);color:#fff}
.preview-bar{background:var(--cover-deep);color:#c9d0e2}
.preview-bar a{color:#fff}
.site-header.cover{padding:20px var(--pad);border-bottom:5px solid var(--cover-deep)}
.site-header .brand{font-family:var(--display);font-weight:700;font-size:23px;letter-spacing:-.02em;gap:12px}
.site-header .brand svg{width:30px;height:34px;stroke:var(--margin);stroke-width:1.5}
.site-header nav{font-size:14.5px;color:#dbe0ec}
.site-header nav a:hover{color:#fff}
.nav-apply{color:#fff!important;background:var(--pen);border:0;border-radius:4px;padding:10px 16px;font-weight:600;transition:background .16s ease}
.nav-apply:hover{background:var(--pen-deep)}
.menu-toggle{color:#fff;border-color:#4a5573;border-radius:4px}

/* The page: one continuous sheet of paper beside a margin rule */
.pages{position:relative;max-width:var(--wrap);margin:0 auto;padding-inline:var(--pad);background:var(--sheet);box-shadow:0 0 0 1px rgba(31,42,68,.045),0 30px 80px -60px rgba(31,42,68,.5)}
.page-section{display:grid;grid-template-columns:var(--marginw) minmax(0,1fr);gap:0}
.margin{border-right:2px solid var(--margin);position:relative}
.pen-note{position:sticky;top:96px;display:block;padding:82px 18px 0 0;text-align:right;font-family:var(--hand);font-size:18px;line-height:1.2;color:var(--pen);transform:rotate(-4deg);transform-origin:right top;opacity:0;transition:opacity .45s ease}
.pen-note.seen{opacity:1}
.content{padding:66px 0 58px clamp(22px,3vw,46px);min-width:0}
.page-section+.page-section .content{border-top:1px solid var(--rule)}
.content h2{margin-bottom:22px;max-width:20ch}
.content>h3,.measure h3{margin:38px 0 12px}
.measure{max-width:64ch}
.measure>p:first-child{font-size:19px}
.content p a,.measure a{text-underline-offset:3px}

/* Hero */
.hero .content{padding-top:58px}
.hero-grid{grid-template-columns:minmax(0,1.22fr) minmax(0,.96fr);gap:clamp(28px,4vw,64px)}
.hero-copy .eyebrow{color:var(--pen);font-family:var(--hand);text-transform:none;letter-spacing:0;font-size:20px;line-height:1.35;margin-bottom:18px}
.hero-copy .eyebrow strong{font-weight:400}
.hero h1{margin-bottom:26px}
.hero-intro>p:first-child{font-size:21px;line-height:1.45;color:var(--ink)}
.hero-intro p{margin-bottom:1em}
.hero-actions{margin-top:30px}
.hero-actions .cta-row{margin:0}
.cta-check .note{margin:10px 0 0;max-width:52ch}
.cta-apply{margin-top:22px}
.hero-offer{margin-top:22px;padding:20px 22px;background:var(--highlight);border:1px solid var(--highlight-edge);border-left:4px solid var(--pen);border-radius:5px}
.hero-offer .offer{font-size:15.5px;line-height:1.5;margin-bottom:10px;color:#3a3020}
.hero-offer .offer strong{color:var(--ink)}
.hero-offer .note{margin:0;color:#6b6350}

/* Buttons that carry weight */
.button{padding:17px 24px;gap:22px;font-size:15.5px;font-weight:600;background:var(--ink);border-color:var(--ink);border-radius:5px;box-shadow:0 12px 24px -16px rgba(25,36,60,.9);transition:background .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease}
.button:hover{background:#2f3542;border-color:#2f3542;color:#fff;transform:translateY(-2px);box-shadow:0 18px 30px -16px rgba(25,36,60,.85)}
.cta-row+.cta-row .button,.button-quiet{background:transparent;color:var(--ink);border:0;border-bottom:2px solid var(--pen);border-radius:0;padding:8px 0;box-shadow:none;font-size:15px}
.cta-row+.cta-row .button:hover,.button-quiet:hover{background:transparent;color:var(--pen);transform:none;box-shadow:none}
.button[data-apply]{background:var(--pen);border-color:var(--pen);color:#fff;box-shadow:0 12px 26px -14px rgba(198,47,42,.85)}
.button[data-apply]:hover{background:var(--pen-deep);border-color:var(--pen-deep);color:#fff;box-shadow:0 18px 32px -14px rgba(198,47,42,.8)}
.text-button{font-size:15px}

/* The marked sum: the one place the grid is meant to be read */
.marked-work{--grid:rgba(38,67,120,.14);position:sticky;top:104px;background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:18px 22px 20px;box-shadow:var(--card);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:var(--cell) var(--cell)}
.mw-label{display:flex;justify-content:space-between;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#7b8190;margin-bottom:8px}
.marked-work svg{width:100%;overflow:visible}
.marked-work .pencil{font-family:var(--hand);font-size:46px;fill:var(--pencil)}
.marked-work .pencil-answer{fill:var(--pencil)}
.marked-work .pen path{fill:none;stroke:var(--pen);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.marked-work .pen .tick{stroke-width:3.6}
.marked-work .pen-hand{font-family:var(--hand);font-size:27px;fill:var(--pen)}
.marked-work .draw{stroke-dasharray:1;stroke-dashoffset:1}
.marked-work .draw-text{opacity:0}
.marked-work.seen .draw{animation:pen-draw .55s ease-out forwards;animation-delay:calc(var(--i)*.42s + .25s)}
.marked-work.seen .draw-text{animation:pen-appear .3s ease-out forwards;animation-delay:calc(var(--i)*.42s + .4s)}
.mw-note{font-size:14px;color:var(--muted);margin:10px 0 0;font-style:italic}
@keyframes pen-draw{to{stroke-dashoffset:0}}
@keyframes pen-appear{to{opacity:1}}

/* Ticks */
.tick{width:22px;height:22px;flex-shrink:0}
.tick path{fill:none;stroke:var(--pen);stroke-width:3.2;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1}
.tick.seen path{animation:pen-draw .4s ease-out forwards}

/* Cards: worksheets laid on the page */
.sheet,.explanations,.exchange,.goal-card,.weekly-report,.email-sample,.course-record,.outside-report,.carry-sheet,.price-sheet,.ledger-group{background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:var(--card)}
.sheet{padding:26px 26px 22px}
.sheet h3{margin-bottom:10px}
.sheet p,.three-up p{font-size:16px;line-height:1.55}
.three-up{margin-top:30px;gap:20px;align-items:stretch}
.carry-sheet{margin-top:34px;padding:24px 26px}
.carry .arrow{font-family:var(--hand);color:var(--pen);font-size:28px}
.carry strong{font-family:var(--hand);font-weight:400;color:var(--ink)}
.carry span{font-size:11.5px;color:var(--muted)}
.video-placeholder{background:var(--cover);color:#fff;border:0;border-radius:6px;box-shadow:var(--card-hi);--line:#4a5573}
.video-caption{color:#c9d0e2;font-size:13.5px}
.explanations{--fill-a:#ffd66b;--fill-b:#9fd0ff;padding:30px 32px}
.lesson-tabs button{font-size:15px}
.lesson-tabs button[aria-selected=true]{border-bottom-color:var(--pen);color:var(--pen)}
.lesson-copy p{font-size:16px}
.fraction-model>div>span,.fraction-sum,.worked-steps strong,.fresh-options button{font-family:var(--hand);font-weight:400}
.worked-steps span{font-size:14px}
.fraction-sum strong{color:var(--pen)}
.fresh-question p{font-size:19px}
.fresh-feedback{font-size:15px}
.fresh-options button{border-radius:4px}
.fresh-options button:hover,.fresh-options button.chosen{background:var(--pen);border-color:var(--pen);color:#fff}
.review-one{max-width:720px;margin-top:30px}
.review-one blockquote{padding:20px 24px;background:var(--highlight);border:1px solid var(--highlight-edge);border-radius:6px}
.review-one blockquote p,.review-grid blockquote p{font-family:var(--body);font-weight:500;font-size:20px;line-height:1.45}
.review-grid{margin-top:22px;gap:22px;border-top:0}
.review-grid blockquote{background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:var(--card);padding:26px 28px 22px}
.review-grid blockquote+blockquote{border-left:1px solid var(--line);padding-left:28px}
blockquote footer{font-size:12.5px;color:var(--muted)}
.exchange{padding:26px 28px}
.exchange-row{border-top-color:var(--rule)}
.exchange-row span{font-family:var(--hand);text-transform:none;letter-spacing:0;font-size:16.5px;color:var(--pen)}
.exchange-row p{font-size:16px}
.exchange-row b{color:var(--pen);font-size:12px}
.report-samples{gap:24px}
.weekly-report,.course-record,.outside-report{padding:30px}
.email-sample{background:var(--highlight);border-color:var(--highlight-edge);padding:30px}
.email-sample p{font-size:15px}
.email-from{font-size:12.5px}
.report-top h3,.record-grid h3,.email-sample h3{letter-spacing:-.025em}
.goal-card dl>div,.weekly-report dl>div,.course-record dl>div{font-size:15px;border-top-color:var(--rule);gap:20px;grid-template-columns:132px 1fr}
.report-note{font-size:15px;border-top-color:var(--rule)}
.report-controls{font-size:13.5px}
.report-controls select{border-radius:4px;border-color:var(--line)}
.outside-report p{font-size:15px}
.score-example{border-block-color:var(--rule)}
.score-example span{font-size:12.5px;color:var(--muted)}

/* The twelve components: four groups, each its own card */
.ledger{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:34px 0 10px;align-items:start}
.ledger-group{padding:24px 26px}
.ledger-group h3{font-size:19px;padding-bottom:12px;border-bottom:2px solid var(--ink);margin-bottom:6px}
.ledger-item{grid-template-columns:22px 1fr;align-items:start;padding:14px 0;border-top:1px solid var(--rule)}
.ledger-group .ledger-item:nth-of-type(1){border-top:0}
.ledger-item h4{font-size:15.5px}
.ledger-item p{font-size:15px;color:var(--muted)}
.ledger-item .n{font-weight:400;color:var(--pen);font-size:12.5px}

/* Team */
.team-grid{gap:24px}
.portrait{background:#f3f5f9;color:var(--cover);border-color:var(--line);border-radius:6px}
.portrait-1{background:#eef1f7}
.portrait-2{background:var(--highlight)}
.team-person h3{font-size:21px}
.team-person p{font-size:14px}
.course-path{font-family:var(--hand);font-size:clamp(22px,2.6vw,30px);border-block-color:var(--line)}
.course-path span{color:var(--pen);opacity:1}

/* Tables: a premium comparison card */
.table-card{position:relative;margin:28px 0}
.table-card thead th:first-child,.table-card tbody th[scope=row]{position:sticky;left:0;z-index:1}
.table-card .table-scroll{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--card-hi)}
.table-card table{font-size:15px;line-height:1.5}
.table-card th,.table-card td{border:0;padding:17px 18px;min-width:0}
.table-card thead th{background:var(--cover);color:#fff;font-family:var(--body);font-size:12.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;white-space:nowrap;vertical-align:middle}
.table-card thead th:first-child{background:var(--cover);width:17%;min-width:140px}
.table-card thead th.ours{background:var(--pen)}
.table-card tbody th[scope=row]{font-size:15px;font-weight:600;color:var(--ink);background:#f7f9fc;width:17%;min-width:140px}
.table-card tbody th[scope=row] strong{font-weight:600}
.table-card tbody td{color:var(--muted)}
.table-card tbody tr+tr th[scope=row],.table-card tbody tr+tr td{border-top:1px solid var(--rule)}
.table-card td.ours{background:var(--highlight);color:var(--ink);box-shadow:inset 1px 0 0 var(--highlight-edge),inset -1px 0 0 var(--highlight-edge)}
.table-card tbody tr:last-child td.ours{box-shadow:inset 1px 0 0 var(--highlight-edge),inset -1px 0 0 var(--highlight-edge),inset 0 -1px 0 var(--highlight-edge)}
.table-card td.ours strong{color:var(--pen-deep)}
.table-card td s,.table-card td.ours s{color:var(--muted);text-decoration-color:var(--pen);text-decoration-thickness:2px}
.table-compare thead th:first-child,.table-compare tbody th[scope=row]{width:15%}
.table-compare thead th.ours,.table-compare tbody td.ours{width:25%}
.table-price th,.table-price td{padding:17px 20px}
.table-price thead th:first-child,.table-price tbody th[scope=row]{width:22%}
.table-notes{margin-top:10px;font-size:14px}
.table-hint{display:none}

/* Price */
.pay-grid{margin-top:6px;gap:36px}
.goal-card{margin:0;padding:28px}
.goal-card h3{color:var(--pen)}
.price-sheet{margin-top:40px;padding:36px clamp(22px,4vw,44px)}
.price-sheet h3{margin-bottom:10px;font-size:clamp(23px,2.2vw,28px)}
.price-sheet>p{font-size:16.5px;max-width:72ch}
.price-selector{border-block-color:var(--rule)}
.price-selector>label{font-size:14px}
.price-selector>select{border-radius:4px;border-color:var(--line);font-size:14px}
.price-selector>p{font-size:14px;color:var(--muted)}
.price-comparison div>span{font-size:11.5px;color:var(--muted)}
.price-comparison strong{font-family:var(--hand);font-weight:700;color:var(--pen);position:relative;display:inline-block;padding:0 .2em}
.price-comparison strong::after{content:"";position:absolute;inset:-4% -10% -8% -12%;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 140' preserveAspectRatio='none'%3E%3Cpath d='M40 30 C 110 8, 262 10, 276 62 C 288 110, 170 130, 82 122 C 26 116, 8 84, 24 56 C 34 40, 60 30, 90 26' fill='none' stroke='%23c62f2a' stroke-width='3.2' stroke-linecap='round'/%3E%3C/svg%3E") center/100% 100% no-repeat;opacity:0;transition:opacity .5s ease .4s}
.price-circled.seen .price-comparison strong::after{opacity:1}
.price-comparison s{text-decoration:none;position:relative;color:var(--pencil)}
.price-comparison s::after{content:"";position:absolute;left:-3%;right:-3%;top:54%;height:3px;background:var(--pen);transform:rotate(-4deg);border-radius:2px}

/* Closing lists: tick, then the whole sentence in one column */
.closing-grid{margin-top:36px;gap:28px;align-items:start}
.closing-grid .sheet h3{margin-bottom:8px}
.closing-grid ul{margin:0}
.closing-grid li,.risk-panel p{display:grid;grid-template-columns:24px minmax(0,1fr);gap:14px;align-items:start;padding:15px 0;margin:0;border-top:1px solid var(--rule);font-size:16px;line-height:1.55}
.closing-grid li:first-child,.risk-panel p:first-child{border-top:0;padding-top:4px}
.closing-grid li p,.risk-panel p>span{margin:0;min-width:0}
.risk-panel p>span{display:block}
.start-apply{margin-top:36px}
.start-apply h3{margin-bottom:12px}
.start-apply p{font-size:16px;max-width:72ch}

/* The teaching film */
.teaching-film{margin:30px 0;padding:0;border:0;background:var(--cover);border-radius:8px;box-shadow:var(--card-hi);overflow:hidden;min-height:0;display:block}
.film-frame{position:relative;aspect-ratio:16/9;background:#000}
.film-frame video{position:absolute;inset:0;width:100%;height:100%;display:block;background:#000}
.teaching-film .video-caption{padding:16px 22px;border-top:1px solid #3b4766;color:#c9d0e2;font-size:14px}
.teaching-film .video-caption strong{color:#fff;font-size:15px}
.asset-title{margin:40px 0 14px}

/* The two explanations: say what to press */
.lesson-hint{font-size:15.5px;color:var(--muted);margin:-6px 0 18px;max-width:60ch}
.lesson-tabs{gap:8px;border-bottom:0;background:#f3f5f9;padding:5px;border-radius:7px}
.lesson-tabs button{flex:1;margin:0;padding:11px 14px;border:0;border-radius:5px;text-align:center;font-size:15px;font-weight:500;color:var(--muted);transition:background .16s ease,color .16s ease}
.lesson-tabs button[aria-selected=true]{background:var(--surface);color:var(--ink);font-weight:600;box-shadow:0 1px 3px rgba(25,36,60,.12)}
.lesson-tabs button:hover{color:var(--ink)}
.divide-button{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--ink);border-radius:5px;padding:10px 16px;font-size:14.5px;font-weight:600;color:var(--ink);background:var(--surface);transition:background .16s ease,color .16s ease}
.divide-button:hover,.divide-button[aria-pressed=true]{background:var(--ink);color:#fff}
.fresh-question>div>strong{font-size:16px}

/* Finding the reason behind a wrong answer: one sum, four steps */
.diagnosis{margin:32px 0 8px;padding:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--card-hi);overflow:hidden}
.diag-head{padding:26px clamp(20px,3vw,34px) 8px}
.diag-head .sample-label{margin-bottom:8px}
.diag-head p{font-family:var(--display);font-size:clamp(20px,2vw,25px);line-height:1.3;font-weight:600;letter-spacing:-.02em;margin:0;max-width:30ch}
.diag-steps{list-style:none;margin:0;padding:8px 0 10px}
.diag-step{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(20px,3vw,44px);align-items:center;padding:24px clamp(20px,3vw,34px);border-top:1px solid var(--rule)}
.diag-step:first-child{border-top:0}
.diag-visual{--grid:rgba(38,67,120,.13);background:var(--surface);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:var(--cell) var(--cell);border:1px solid var(--line);border-radius:6px;padding:16px 18px;min-height:150px;display:flex;align-items:center}
.diag-visual svg{width:100%;overflow:visible}
.diag-visual .pencil{font-family:var(--hand);fill:var(--pencil)}
.diag-visual .pen-hand{font-family:var(--hand);fill:var(--pen)}
.diag-visual .pen ellipse,.diag-visual .pen path{fill:none;stroke:var(--pen);stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round}
.diag-visual .pen .tick{stroke-width:4}
.diag-visual .strip rect{fill:none;stroke:var(--ink);stroke-width:1.6}
.diag-visual .strip .fill{stroke:none}
.diag-visual .strip.half .fill{fill:#ffd66b}
.diag-visual .strip.third .fill{fill:#9fd0ff}
.diag-visual .strip .cut{stroke:var(--ink);stroke-width:1.6}
.diag-visual .draw{stroke-dasharray:1;stroke-dashoffset:1}
.diag-visual .draw-text{opacity:0}
.diag-step.seen .draw{animation:pen-draw .6s ease-out forwards;animation-delay:.35s}
.diag-step.seen .draw-text{animation:pen-appear .35s ease-out forwards;animation-delay:.8s}
.diag-fork{display:grid;gap:14px;align-items:stretch}
.diag-ask{display:grid;gap:4px}
.diag-ask span,.diag-reply span{font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600}
.diag-ask b{font-family:var(--hand);font-weight:400;font-size:24px;line-height:1.2;color:var(--pen)}
.diag-replies{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.diag-reply{display:grid;gap:6px;align-content:start;background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:5px;padding:12px 14px}
.diag-reply i{font-family:var(--hand);font-style:normal;font-size:19px;line-height:1.25;color:var(--pencil)}
.diag-reply em{font-style:normal;font-size:13px;font-weight:600;color:var(--pen);border-top:1px dashed var(--line);padding-top:8px;margin-top:2px}
.diag-text{display:grid;grid-template-columns:38px minmax(0,1fr);gap:0 14px;align-items:start}
.diag-text h4,.diag-text p{grid-column:2}
.diag-n{width:38px;height:38px;border-radius:50%;background:var(--pen);color:#fff;font-family:var(--hand);font-size:22px;line-height:38px;text-align:center;font-weight:700}
.diag-text h4{font-family:var(--display);font-size:clamp(20px,1.7vw,24px);line-height:1.2;letter-spacing:-.02em;font-weight:600;margin:6px 0 10px}
.diag-text p{font-size:16.5px;line-height:1.55;margin:0;color:#3a3f4a}

/* Cards from the copy's bold sub-headings */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:30px 0;align-items:stretch}
.card-grid.cards-4{grid-template-columns:repeat(2,minmax(0,1fr))}
.card-grid .sheet h3{font-size:20px}
.card-grid .sheet p{margin:0}
.aside-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:36px;align-items:start;margin-top:6px}
.aside-grid .goal-card{margin:0}
.content>.goal-card{max-width:680px}
.day-sequence{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:28px 0 8px}
.day-sequence>div{background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:var(--card);padding:22px 24px;position:relative}
.day-sequence>div>span{display:block;font-family:var(--hand);color:var(--pen);font-size:18px;margin-bottom:6px}
.day-sequence h3{font-size:20px;margin-bottom:8px}
.day-sequence p{font-size:15.5px;margin:0;color:var(--muted)}
.day-sequence+.small{margin-top:8px}
.prerequisite{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:30px 0;padding:24px 26px;background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:var(--card)}
.prerequisite figcaption{flex-basis:100%;margin-bottom:6px}
.prerequisite>div{flex:1;min-width:150px}
.prerequisite div span{display:block;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.prerequisite strong{display:block;font-family:var(--hand);font-weight:400;font-size:clamp(24px,2.6vw,30px);margin-top:8px}
.prerequisite>span{font-family:var(--hand);color:var(--pen);font-size:28px}
.back-link{font-size:15px}
.back-link a{text-decoration:none;border-bottom:2px solid var(--pen);padding-bottom:2px}
.measure ul:not(.closing-grid ul){padding-left:0;list-style:none}
.measure ul:not(.closing-grid ul)>li{position:relative;padding:12px 0 12px 30px;border-top:1px solid var(--rule);font-size:16px;line-height:1.55}
.measure ul:not(.closing-grid ul)>li::before{content:"";position:absolute;left:0;top:23px;width:16px;height:3px;border-radius:2px;background:var(--pen);transform:rotate(-6deg)}
.measure ul:not(.closing-grid ul)>li:first-child{border-top:0}
.measure .cta-row{margin:22px 0}

/* Team and reviews from the testing families */
.team-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:30px 0 44px;align-items:stretch}
.team-person{background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:var(--card);padding:0 0 22px;overflow:hidden}
.portrait{position:relative;height:200px;border:0;border-radius:0;border-bottom:1px solid var(--line)}
.portrait-initials{position:absolute;left:18px;top:16px;font-family:var(--hand);font-size:22px;color:var(--pen);letter-spacing:.04em}
.team-person h3{margin:18px 22px 2px;font-size:21px}
.team-person .team-role{margin:0 22px 10px;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--pen);font-weight:600}
.team-person .team-bio{margin:0 22px;font-size:15px;line-height:1.55;color:#3a3f4a}
.review{padding:24px 26px 20px}
.review p{font-family:var(--body);font-weight:500;font-size:18px;line-height:1.5;margin:0 0 18px}
.review footer{display:flex;align-items:center;gap:12px;font-size:13.5px;line-height:1.3;color:var(--muted);letter-spacing:0}
.review footer b{color:var(--ink);font-weight:600;font-size:14.5px}
.avatar{flex-shrink:0;width:40px;height:40px;border-radius:50%;background:var(--cover);color:#fff;font-family:var(--hand);font-size:17px;display:inline-flex;align-items:center;justify-content:center}
.review-one .review{background:var(--highlight);border-color:var(--highlight-edge)}
.content>.review{max-width:760px;margin-top:26px;background:var(--highlight);border:1px solid var(--highlight-edge);border-radius:6px}
.review-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}
.review-grid .review{padding:22px 22px 18px}
.review-grid .review p{font-size:16.5px}

/* Back cover */
.site-footer.cover{border-top:5px solid var(--cover-deep);--line:#3b4766;color:#d5dbea}
.brand-plain{font-family:var(--display);font-weight:700;font-size:24px;color:#fff}
.site-footer p{color:#c9d0e2;font-size:13.5px}
.site-footer nav{font-size:13.5px}
.site-footer nav a{color:#fff}

@media(max-width:1100px){
  .table-card th,.table-card td{padding:16px}
}
@media(max-width:960px){
  .ledger,.card-grid,.review-grid,.team-grid{grid-template-columns:1fr 1fr}
  .diag-step{grid-template-columns:1fr;gap:16px}
  .diag-visual{min-height:0}
  .aside-grid{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:900px){
  :root{--marginw:46px}
  .table-card::after{content:"";position:absolute;top:1px;right:1px;bottom:1px;width:46px;border-radius:0 8px 8px 0;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.92));pointer-events:none}
  .table-card thead th:first-child,.table-card tbody th[scope=row]{box-shadow:1px 0 0 var(--line)}
  .table-compare thead th:first-child,.table-compare tbody th[scope=row]{width:auto;min-width:138px}
  .table-compare thead th.ours,.table-compare tbody td.ours{width:auto;min-width:210px}
  .pen-note{font-size:16px;padding:70px 0 0;text-align:left;transform:rotate(-90deg) translateX(-100%);transform-origin:left top;white-space:nowrap;position:static}
  .content{padding:52px 0 46px 18px}
  .hero-grid{grid-template-columns:1fr}
  .marked-work{position:static}
  .three-up,.closing-grid{gap:18px}
}
@media(max-width:620px){
  .ledger,.card-grid,.card-grid.cards-4,.review-grid,.team-grid,.day-sequence,.diag-replies{grid-template-columns:minmax(0,1fr)}
  .prerequisite>div{flex-basis:100%}
  .prerequisite>span{flex-basis:100%;transform:rotate(90deg);transform-origin:14px 50%;line-height:1;margin:-4px 0}
  .lesson-tabs{flex-direction:column}
}
@media(max-width:560px){
  :root{--marginw:28px;--cell:22px}
  body{font-size:16px}
  .goal-card dl>div,.weekly-report dl>div,.course-record dl>div{grid-template-columns:minmax(0,1fr);gap:4px}
  .report-controls{flex-direction:column}
  .pen-note{display:none}
  .content{padding:42px 0 38px 14px}
  .sheet,.explanations,.exchange,.goal-card,.weekly-report,.email-sample,.course-record,.outside-report,.carry-sheet,.price-sheet,.ledger-group{padding:22px}
  .table-card th,.table-card td{padding:14px;min-width:150px}
}

/* Real profile photos; initials remain for team members without a photo. */
.portrait.portrait-photo{padding-top:0}
.portrait-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:center top}
.portrait-1.portrait-photo img{object-position:center 35%}
.review footer{display:flex;align-items:center;gap:12px}
.review-photo{display:block;flex-shrink:0;width:56px;height:56px;border-radius:50%;object-fit:cover;object-position:center 30%}

/* ---------- Your first 28 days: three steps on a timeline ---------- */
.first28{margin:30px 0 8px}
.f28-track{position:relative;height:46px;margin:0 16px 14px;border-bottom:3px solid var(--cover)}
.f28-track::after{content:"";position:absolute;right:-2px;bottom:-9px;width:15px;height:15px;border-radius:50%;background:var(--pen);box-shadow:0 0 0 4px var(--paper)}
.f28-tick{position:absolute;left:var(--at);bottom:10px;transform:translateX(-50%);font-family:var(--hand);font-size:17px;color:var(--pencil);white-space:nowrap}
.f28-tick::after{content:"";position:absolute;left:50%;bottom:-13px;width:2px;height:10px;background:var(--cover)}
.f28-tick:first-child{transform:none}
.f28-tick:first-child::after{left:0}
.f28-tick-end{transform:translateX(-100%);color:var(--pen);font-weight:700}
.f28-tick-end::after{left:auto;right:0;background:var(--pen)}
.f28-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.f28-step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:6px;box-shadow:var(--card);padding:24px 24px 22px}
.f28-when{display:block;font-family:var(--hand);font-size:18px;color:var(--pen);margin-bottom:6px}
.f28-step h3{font-family:var(--display);font-size:21px;line-height:1.2;margin:0 0 10px}
.f28-step p{font-size:15.5px;line-height:1.6;color:var(--muted);margin:0 0 14px}
.f28-step ul{list-style:none;margin:0;padding:12px 0 0;border-top:1px dashed var(--line)}
.f28-step li{position:relative;padding:4px 0 4px 22px;font-size:14.5px;line-height:1.45;color:var(--ink)}
.f28-step li::before{content:"✓";position:absolute;left:0;top:3px;color:var(--pen);font-weight:700}
.f28-pay{background:var(--highlight);border-color:var(--highlight-edge);box-shadow:var(--card-hi)}
.f28-pay h3{color:var(--pen-deep)}
@media (max-width:860px){
  .f28-track{display:none}
  .f28-steps{grid-template-columns:1fr;gap:0;padding-left:26px;border-left:3px solid var(--cover);margin-left:8px}
  .f28-step{margin:0 0 16px}
  .f28-step::before{content:"";position:absolute;left:-37px;top:26px;width:17px;height:17px;border-radius:50%;background:var(--paper);border:3px solid var(--cover)}
  .f28-pay::before{background:var(--pen);border-color:var(--pen)}
  .f28-step:last-child{margin-bottom:0}
}