:root {
  --navy: #153265;
  --ink: #1c2a42;
  --teal: #0b9e8b;
  --sky: #4aaee8;
  --violet: #7056b8;
  --gold: #f4be48;
  --paper: #fbfcff;
  --mist: #eef6fb;
  --line: #dce7f0;
  --muted: #5c6f87;
  --radius: 20px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 400 16px/1.55 "DM Sans", Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
.site-header, main, footer { width: min(1160px, calc(100% - 40px)); margin: auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 78px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--navy); font: 800 24px/1 "Nunito Sans", sans-serif; letter-spacing: -.9px; }
.brand > span > span { color: var(--teal); }
.brand-mark { width: 30px; height: 34px; position: relative; display: flex; flex-direction: column-reverse; justify-content: center; gap: 3px; }
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; top: 0; bottom: 0; width: 6px; border-radius: 8px; }
.brand-mark::before { left: 0; background: var(--navy); transform: skewY(-24deg); }
.brand-mark::after { right: 0; background: var(--teal); transform: skewY(24deg); }
.brand-mark i { z-index: 1; display: block; height: 3px; margin: 0 7px; border-radius: 9px; }
.brand-mark i:nth-child(1) { background: var(--violet); }.brand-mark i:nth-child(2) { background: var(--sky); }.brand-mark i:nth-child(3) { background: var(--teal); }.brand-mark i:nth-child(4) { background: #8ccc58; }.brand-mark i:nth-child(5) { background: var(--gold); }
nav { display: flex; gap: 28px; color: #40536b; font-weight: 600; font-size: .93rem; }
nav a:hover, .text-link:hover { color: var(--teal); }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 13px 20px; border-radius: 999px; color: white; background: var(--navy); font-weight: 700; transition: transform .2s, background .2s; }
.button:hover { background: var(--teal); transform: translateY(-2px); }
.button-small { padding: 9px 16px; font-size: .9rem; }
.hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; padding: 76px 5% 94px; background: linear-gradient(125deg, #f2faff 0%, #f9fcfd 55%, #edf9f5 100%); border-radius: 0 0 36px 36px; }
.eyebrow { margin: 0 0 10px; color: var(--teal); font-size: .75rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: "Nunito Sans", sans-serif; letter-spacing: -.04em; }
h1 { max-width: 600px; margin-bottom: 19px; color: var(--navy); font-size: clamp(2.75rem, 6vw, 4.9rem); line-height: 1.02; }
.hero-lede { max-width: 560px; color: var(--muted); font-size: 1.15rem; }
.hero-actions { display: flex; gap: 20px; align-items: center; margin: 28px 0 20px; }
.text-link { color: var(--navy); font-weight: 700; }.text-link span { color: var(--teal); padding-left: 4px; }
.hero-note { color: #728397; font-size: .87rem; }
.hero-visual { min-height: 330px; position: relative; }
.visual-card { position: absolute; right: 5%; width: 238px; padding: 21px 25px; border-radius: 18px; box-shadow: 0 18px 35px rgb(21 50 101 / 12%); font-weight: 800; }
.visual-card-top { top: 10px; background: #fff7dc; color: #9c7312; }.visual-card-middle { top: 118px; right: 18%; background: #e7f8f5; color: #087363; }.visual-card-bottom { top: 225px; right: 31%; background: #e8f4fc; color: #1974a3; }
.visual-path { position: absolute; top: 38px; bottom: 24px; left: 10%; display: flex; flex-direction: column-reverse; justify-content: space-around; }
.visual-path::before { content: ""; position: absolute; top: 12px; bottom: 12px; left: 10px; border-left: 3px dashed #a3d9cf; }.visual-path span { position: relative; width: 23px; height: 23px; border: 5px solid white; border-radius: 50%; background: var(--teal); box-shadow: 0 2px 7px rgb(11 158 139 / 25%); }
section:not(.hero) { padding: 90px 0; }
.section-heading { max-width: 540px; margin-bottom: 32px; }.section-heading h2 { margin-bottom: 10px; color: var(--navy); font-size: clamp(2rem, 4vw, 3rem); line-height: 1.08; }.section-heading > p:last-child { color: var(--muted); }
.grade-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }.grade-grid a { display: flex; justify-content: space-between; align-items: center; min-height: 82px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 15px; background: white; font-weight: 700; transition: .2s; }.grade-grid strong { color: var(--teal); font-size: 1.55rem; }.grade-grid a:hover { transform: translateY(-3px); border-color: var(--teal); box-shadow: 0 10px 25px rgb(21 50 101 / 8%); }
.subject-section { border-top: 1px solid var(--line); }.subject-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }.subject-card { min-height: 260px; padding: 27px; border-radius: var(--radius); color: #fff; display: flex; flex-direction: column; transition: transform .2s; }.subject-card:hover { transform: translateY(-4px); }.subject-card span { opacity: .72; font-weight: 800; }.subject-card h3 { margin: auto 0 6px; font-size: 1.7rem; }.subject-card p { color: rgb(255 255 255 / 85%); }.subject-card b { font-size: .9rem; }.maths { background: var(--navy); }.english { background: var(--teal); }.olympiad { background: #9a7214; }
.how-section { border-top: 1px solid var(--line); }.steps { list-style: none; counter-reset: steps; display: grid; grid-template-columns: repeat(3, 1fr); padding: 0; gap: 32px; }.steps li { position: relative; padding-top: 67px; }.steps span { position: absolute; top: 0; left: 0; display: grid; width: 42px; height: 42px; place-items: center; border-radius: 50%; background: #e7f8f5; color: var(--teal); font-weight: 800; }.steps h3 { margin-bottom: 8px; font-size: 1.25rem; }.steps p { color: var(--muted); }
.mission-banner { padding: 54px 8% !important; margin-bottom: 85px; border-radius: 28px; background: var(--navy); color: white; }.mission-banner .eyebrow { color: #79d8c8; }.mission-banner > p:nth-child(2) { max-width: 900px; margin-bottom: 22px; font: 700 clamp(1.45rem, 3vw, 2.25rem)/1.28 "Nunito Sans", sans-serif; letter-spacing: -.025em; }.mission-banner .text-link { color: white; }
footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 30px 0 45px; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }footer .brand { font-size: 20px; }
@media (max-width: 780px) { .site-header { min-height: 68px; }.site-header nav { display: none; }.site-header .button { display: none; }.hero { grid-template-columns: 1fr; gap: 30px; padding: 56px 7% 64px; }.hero-visual { min-height: 280px; }.grade-grid { grid-template-columns: repeat(2, 1fr); }.subject-grid, .steps { grid-template-columns: 1fr; }.subject-card { min-height: 220px; }.mission-banner { margin-bottom: 55px; }footer { flex-direction: column; align-items: flex-start; } }

/* Worksheet browser */
.library-hero { grid-template-columns: 1fr; padding-block: 58px; }
.library-section { padding-top: 64px !important; }
.filter-panel { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 12px 30px rgb(21 50 101 / 5%); }
.filter-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.filter-field { display: grid; gap: 7px; color: var(--navy); font-size: .82rem; font-weight: 800; }
.filter-field select { min-height: 44px; padding: 0 12px; border: 1px solid #cbd9e5; border-radius: 10px; background: #fff; color: var(--ink); font: inherit; }
.filter-field select:focus { outline: 3px solid rgb(11 158 139 / 18%); border-color: var(--teal); }
.filter-actions { display: flex; gap: 16px; align-items: center; margin-top: 18px; }
.clear-filters { border: 0; padding: 8px 0; color: var(--navy); background: transparent; font: inherit; font-weight: 700; cursor: pointer; }
.clear-filters:hover { color: var(--teal); }
.results-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 30px 0 16px; color: var(--muted); font-size: .9rem; }
.results-toolbar p { margin: 0; }
.library-key { display: flex; align-items: center; gap: 8px; }
.status-dot { display: inline-block; width: 8px; height: 8px; margin-left: 5px; border-radius: 50%; }
.status-dot.review { background: var(--gold); }.status-dot.planned { background: #98a6b5; }
.worksheet-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.worksheet-card { display: flex; min-height: 206px; flex-direction: column; padding: 23px; border: 1px solid var(--line); border-radius: 18px; background: white; }
.worksheet-card h3 { margin: 20px 0 8px; color: var(--navy); font-size: 1.35rem; line-height: 1.13; }
.worksheet-card p { margin: 0; color: var(--muted); font-size: .92rem; }
.card-meta { display: flex; flex-wrap: wrap; gap: 7px; color: var(--teal); font-size: .72rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.card-meta span + span::before { content: "·"; padding-right: 7px; color: #9eb0c2; }
.card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 20px; }
.status { padding: 5px 9px; border-radius: 999px; font-size: .74rem; font-weight: 800; }
.status.review { color: #76520a; background: #fff6d9; }.status.planned { color: #596d80; background: #eef3f7; }
.empty-state { padding: 48px 8%; border: 1px dashed #b8c8d7; border-radius: var(--radius); background: white; text-align: center; }
.empty-state h3 { margin-bottom: 8px; color: var(--navy); font-size: 1.45rem; }.empty-state p { color: var(--muted); }
.empty-state .text-link { border: 0; background: transparent; cursor: pointer; font: inherit; }
.library-note { margin-top: 26px; padding: 22px 25px; border-left: 4px solid var(--teal); border-radius: 0 14px 14px 0; background: #edf9f5; }
.library-note p:last-child { max-width: 850px; margin-bottom: 0; color: #42665f; }
@media (max-width: 780px) { .filter-grid, .worksheet-grid { grid-template-columns: 1fr; }.results-toolbar { align-items: flex-start; flex-direction: column; }.filter-actions { flex-wrap: wrap; } }

.subject-section .subject-grid { grid-template-columns: repeat(4, 1fr); }
.science { background: #3f7695; }
@media (max-width: 980px) and (min-width: 781px) { .subject-section .subject-grid { grid-template-columns: repeat(2, 1fr); } }


/* Lesson library entry point */
.lesson-library-banner { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 38px 7% !important; margin: 12px 0 0; border: 1px solid #d9eee9; border-radius: 24px; background: linear-gradient(105deg, #edf9f7, #f8fcff); }
.lesson-library-banner h2 { margin: 0 0 7px; color: var(--navy); font-size: clamp(1.7rem, 3vw, 2.35rem); }.lesson-library-banner p:last-child { max-width: 620px; margin: 0; color: var(--muted); }
@media (max-width: 780px) { .lesson-library-banner { align-items: flex-start; flex-direction: column; } }


/* Grade and subject learning hubs */
.hub-shell { padding-bottom: 78px; }
.hub-breadcrumbs { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 34px; color: #6f829b; font-size: .9rem; }
.hub-breadcrumbs a { color: inherit; }.hub-breadcrumbs a:hover { color: var(--teal); text-decoration: underline; text-underline-offset: 3px; }.hub-breadcrumbs span[aria-hidden="true"] { color: #a8b6c4; }
.hub-hero { margin-top: 24px; padding: 62px 8%; border-radius: 28px; background: linear-gradient(118deg, #eafaf7, #f8fcff); }
.hub-hero h1 { margin: 7px 0 13px; }.hub-hero > p:last-of-type { max-width: 660px; margin-bottom: 0; color: #496a73; font-size: 1.08rem; line-height: 1.65; }.hub-hero .button { margin-top: 24px; }
.hub-section { padding: 34px 0 0 !important; }.hub-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }.grade-hub-grid { grid-template-columns: repeat(4, 1fr); }
.hub-card { display: flex; min-height: 200px; flex-direction: column; padding: 25px; border: 1px solid #dceaf0; border-radius: 20px; background: white; box-shadow: 0 14px 30px rgba(36,67,102,.05); transition: transform .2s, border-color .2s; }.hub-card:hover { transform: translateY(-3px); border-color: #8ecfc6; }.hub-card h2 { margin: 6px 0 10px; color: var(--navy); font-size: 1.45rem; }.hub-card p:not(.eyebrow) { margin: 0; color: var(--muted); }.hub-card b { margin-top: auto; padding-top: 20px; color: var(--teal); font-size: .92rem; }.hub-card.is-muted { background: #f5f8fa; border-style: dashed; box-shadow: none; }.hub-card.is-muted b { color: #8192a5; }.grade-choice { min-height: 150px; }.hub-choice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 780px) { .hub-hero { padding: 42px 8%; }.hub-grid, .grade-hub-grid, .hub-choice-grid { grid-template-columns: 1fr; }.hub-breadcrumbs { margin: 20px 0 25px; } }


/* Published worksheet cards */
.status-dot.published { background: var(--teal); }
.status.published { color: #087363; background: #e7f8f5; }
.worksheet-card-link { transition: transform .2s, border-color .2s, box-shadow .2s; }
.worksheet-card-link:hover { transform: translateY(-3px); border-color: #8ecfc6; box-shadow: 0 12px 28px rgb(21 50 101 / 8%); }

/* Worksheet viewer */
.worksheet-view-shell { max-width: 980px; padding: 34px 0 80px; }
.worksheet-view-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.print-worksheet { padding: 46px 52px 34px; border: 1px solid var(--line); border-radius: 20px; background: white; box-shadow: 0 14px 35px rgb(21 50 101 / 6%); }
.worksheet-brand-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-bottom: 20px; border-bottom: 2px solid var(--navy); }
.worksheet-brand-name { margin: 0; color: var(--navy); font: 800 28px/1 "Nunito Sans", sans-serif; letter-spacing: -.8px; }
.worksheet-brand-name span { color: var(--teal); }
.worksheet-kicker { margin: 7px 0 0; color: var(--muted); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.worksheet-time { padding: 8px 12px; border-radius: 999px; background: #edf9f5; color: #087363; font-size: .85rem; font-weight: 800; white-space: nowrap; }
.print-worksheet > h1 { max-width: none; margin: 28px 0 20px; font-size: 2rem; }
.worksheet-identity { display: grid; grid-template-columns: 2fr .7fr 1.4fr .8fr; gap: 14px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: #fbfdff; }
.worksheet-identity p { display: grid; gap: 4px; margin: 0; font-size: .9rem; }
.worksheet-identity strong { color: var(--muted); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; }
.write-line { display: block; min-height: 24px; border-bottom: 1px solid #8294a8; }
.worksheet-directions { margin: 22px 0 8px; color: var(--muted); font-size: .92rem; font-weight: 600; }
.worksheet-questions { counter-reset: none; }
.mcq-item { padding: 17px 0; border-bottom: 1px solid #e8eef4; break-inside: avoid; page-break-inside: avoid; }
.mcq-question { margin: 0 0 9px; font-weight: 600; line-height: 1.5; }
.mcq-question > span:first-child { display: inline-block; width: 28px; color: var(--navy); font-weight: 800; }
.mcq-options { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 22px; padding-left: 28px; }
.mcq-options p { margin: 0; font-size: .93rem; line-height: 1.45; }
.option-letter { color: var(--teal); font-weight: 800; }
.worksheet-print-footer { display: flex; justify-content: space-between; gap: 18px; margin-top: 28px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: .75rem; }
.worksheet-print-footer strong { color: var(--navy); }
.worksheet-loading, .worksheet-error { padding: 50px 0; text-align: center; }

@media (max-width: 780px) {
  .worksheet-view-toolbar { align-items: flex-start; flex-direction: column; }
  .print-worksheet { padding: 28px 22px; }
  .worksheet-identity { grid-template-columns: 1fr 1fr; }
  .mcq-options { grid-template-columns: 1fr; }
  .worksheet-print-footer { flex-direction: column; gap: 4px; }
}

@media print {
  @page { size: A4; margin: 12mm; }
  body { background: white; font-size: 11pt; }
  .no-print { display: none !important; }
  .worksheet-view-shell { width: 100%; max-width: none; padding: 0; }
  .print-worksheet { padding: 0; border: 0; border-radius: 0; box-shadow: none; }
  .worksheet-brand-header { padding-bottom: 10px; }
  .print-worksheet > h1 { margin: 16px 0 12px; font-size: 20pt; }
  .worksheet-identity { padding: 10px; }
  .worksheet-directions { margin: 14px 0 4px; }
  .mcq-item { padding: 9px 0; }
  .mcq-options { gap: 2px 18px; }
  .worksheet-print-footer { position: running(worksheet-footer); margin-top: 18px; }
}


/* Refined Grade 8 assessment experience */
.worksheet-view-shell { max-width: 1040px; }
.print-worksheet {
  padding: 34px 40px 24px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgb(21 50 101 / 5%);
}
.worksheet-brand-header {
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid #cfdbe6;
}
.worksheet-brand-name { font-size: 24px; }
.worksheet-kicker {
  margin-top: 5px;
  font-size: .69rem;
  letter-spacing: .09em;
}
.worksheet-meta-line {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
}
.worksheet-meta-line > span:first-child::after {
  content: "·";
  padding-left: 9px;
  color: #a6b3c0;
}
.worksheet-time {
  min-width: 64px;
  padding: 6px 10px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.worksheet-time.is-low {
  background: #fff4df;
  color: #8a5d00;
}
.worksheet-title-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin: 22px 0 14px;
}
.worksheet-series {
  margin: 0 0 3px;
  color: var(--teal);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.worksheet-title-row h1 {
  max-width: none;
  margin: 0;
  font-size: 1.7rem;
  line-height: 1.1;
}
.print-only { display: none; }
.worksheet-identity {
  grid-template-columns: 2fr .55fr 1.25fr 1.1fr;
  gap: 18px;
  padding: 10px 0 12px;
  border: 0;
  border-top: 1px solid #e0e8ef;
  border-bottom: 1px solid #e0e8ef;
  border-radius: 0;
  background: transparent;
}
.worksheet-identity p { gap: 2px; }
.worksheet-identity strong {
  font-size: .66rem;
  letter-spacing: .07em;
}
.write-line {
  min-height: 22px;
  border-bottom-color: #98a8b8;
}
.worksheet-progress {
  margin: 18px 0 12px;
  padding: 14px 16px;
  border: 1px solid #dbe7ef;
  border-radius: 12px;
  background: #fbfdff;
}
.progress-copy {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: .8rem;
}
.progress-copy strong { color: var(--navy); }
.progress-track {
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8eef4;
}
.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--teal);
  transition: width .2s ease;
}
.worksheet-directions {
  margin: 15px 0 6px;
  font-size: .86rem;
}
.mcq-item {
  min-inline-size: 0;
  margin: 0;
  padding: 16px 0 17px;
  border: 0;
  border-bottom: 1px solid #edf1f5;
}
.mcq-question {
  display: block;
  width: 100%;
  margin: 0 0 10px;
  padding: 0;
  color: var(--ink);
  font: 600 .97rem/1.5 "DM Sans", Arial, sans-serif;
}
.mcq-question > span:first-child {
  width: 30px;
  color: var(--navy);
}
.mcq-options {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px 12px;
  padding-left: 30px;
}
.mcq-choice {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  min-height: 42px;
  padding: 9px 10px;
  border: 1px solid #dce6ee;
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  font-size: .9rem;
  line-height: 1.4;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.mcq-choice:hover {
  border-color: #9fcfc8;
  background: #fbfffe;
}
.mcq-choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.choice-marker {
  display: grid;
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1.5px solid #9eb0bf;
  border-radius: 50%;
  color: #52657a;
  background: #fff;
  font-size: .75rem;
  font-weight: 800;
}
.mcq-choice.is-selected {
  border-color: #61b9ac;
  background: #f0faf8;
  box-shadow: 0 0 0 2px rgb(11 158 139 / 7%);
}
.mcq-choice.is-selected .choice-marker {
  border-color: var(--teal);
  color: #fff;
  background: var(--teal);
}
.mcq-unsure {
  grid-column: 1 / -1;
  width: max-content;
  min-height: 36px;
  padding: 6px 10px;
  color: var(--muted);
  background: #fafbfc;
}
.mcq-unsure .choice-marker {
  width: 21px;
  height: 21px;
  flex-basis: 21px;
  border-style: dashed;
  font-size: .7rem;
}
.worksheet-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 0 8px;
}
.secondary-button {
  padding: 11px 16px;
  border: 1px solid #cfdbe5;
  border-radius: 999px;
  color: var(--navy);
  background: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.secondary-button:hover { border-color: var(--teal); color: var(--teal); }
.attempt-result, .answer-gate {
  margin-top: 20px;
  padding: 20px 22px;
  border-radius: 14px;
}
.attempt-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 1px solid #cae8e2;
  background: #f3fbf9;
}
.attempt-result[hidden], .answer-gate[hidden] { display: none; }
.attempt-result h2 { margin: 0 0 5px; color: var(--navy); font-size: 1.35rem; }
.attempt-result p:last-child { margin-bottom: 0; color: var(--muted); }
.answer-gate {
  border-left: 4px solid var(--navy);
  background: #f5f8fb;
  color: #40536b;
}
.answer-gate p { margin: 6px 0 0; }
.worksheet-print-footer {
  display: block;
  margin-top: 22px;
  padding-top: 10px;
  border-top: 1px solid #dce5ec;
  text-align: center;
  white-space: nowrap;
  color: #6b7d91;
  font-size: .7rem;
  letter-spacing: .01em;
}
.worksheet-print-footer strong { color: var(--navy); }

@media (max-width: 780px) {
  .print-worksheet { padding: 24px 18px; }
  .worksheet-brand-header { align-items: flex-start; }
  .worksheet-meta-line { align-items: flex-end; flex-direction: column; gap: 4px; }
  .worksheet-meta-line > span:first-child::after { content: ""; padding: 0; }
  .worksheet-title-row { align-items: flex-start; flex-direction: column; }
  .worksheet-identity { grid-template-columns: 1fr 1fr; }
  .name-field, .date-field { grid-column: span 2; }
  .progress-copy { align-items: flex-start; flex-direction: column; gap: 2px; }
  .mcq-options { grid-template-columns: 1fr; padding-left: 0; }
  .mcq-unsure { width: 100%; }
  .attempt-result { align-items: flex-start; flex-direction: column; }
  .worksheet-print-footer { white-space: normal; }
}

@media print {
  @page { size: A4; margin: 11mm 12mm 13mm; }
  body { background: #fff; font-size: 9.5pt; line-height: 1.35; }
  .no-print { display: none !important; }
  .print-only { display: block !important; }
  .worksheet-view-shell { width: 100%; max-width: none; padding: 0; }
  .print-worksheet { padding: 0; border: 0; border-radius: 0; box-shadow: none; }
  .worksheet-brand-header { padding-bottom: 7px; border-bottom: 1px solid #9aaabb; }
  .worksheet-brand-name { font-size: 16pt; }
  .worksheet-kicker { font-size: 7pt; }
  .worksheet-meta-line { font-size: 7.5pt; }
  .worksheet-time { padding: 2px 0; background: transparent; color: var(--ink); }
  .worksheet-title-row { margin: 10px 0 7px; }
  .worksheet-series { font-size: 6.5pt; }
  .worksheet-title-row h1 { font-size: 14pt; }
  .worksheet-score-placeholder { font-size: 8pt; font-weight: 700; }
  .worksheet-identity { gap: 12px; padding: 6px 0 7px; }
  .worksheet-identity p { font-size: 8pt; }
  .worksheet-identity strong { font-size: 6pt; }
  .write-line { min-height: 14px; }
  .worksheet-directions { margin: 8px 0 2px; font-size: 7.8pt; }
  .mcq-item {
    padding: 5.5px 0 6px;
    border-bottom: 0;
    break-inside: auto;
    page-break-inside: auto;
  }
  .mcq-question {
    margin-bottom: 3px;
    font-size: 8.6pt;
    line-height: 1.3;
  }
  .mcq-question > span:first-child { width: 20px; }
  .mcq-options {
    grid-template-columns: 1fr 1fr;
    gap: 1px 12px;
    padding-left: 20px;
  }
  .mcq-choice {
    min-height: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent !important;
    box-shadow: none !important;
    font-size: 8pt;
    line-height: 1.28;
  }
  .choice-marker {
    width: 14px;
    height: 14px;
    flex-basis: 14px;
    border-width: 1px;
    font-size: 6.5pt;
  }
  .mcq-choice.is-selected .choice-marker {
    color: #111;
    background: #fff;
  }
  .mcq-unsure { display: none; }
  .worksheet-print-footer {
    margin-top: 8px;
    padding-top: 5px;
    border-top: 1px solid #b9c5d0;
    white-space: nowrap;
    text-align: center;
    font-size: 6.7pt;
  }
}


/* Manual worksheet timer */
.timer-control {
  display: inline-flex;
  align-items: center;
}
.timer-start-button {
  padding: 6px 11px;
  border: 1px solid #b9d9d3;
  border-radius: 999px;
  color: #087363;
  background: #edf9f5;
  font: inherit;
  font-size: .78rem;
  font-weight: 800;
  cursor: pointer;
}
.timer-start-button:hover {
  border-color: var(--teal);
  background: #e4f6f2;
}

@media print {
  .timer-control,
  .worksheet-time {
    display: none !important;
  }
  .worksheet-meta-line > span:first-child::after {
    content: "" !important;
    padding: 0 !important;
  }
}


/* Compact print identity and breathing room before questions */
.print-assessment-header { display: none; }
.worksheet-print-directions { display: none; }

@media print {
  .worksheet-brand-header {
    padding-bottom: 6px;
    margin-bottom: 8px;
  }
  .worksheet-kicker,
  .worksheet-title-row,
  .worksheet-identity {
    display: none !important;
  }
  .print-assessment-header {
    display: block !important;
    margin: 0 0 8px;
  }
  .print-assessment-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 7px;
  }
  .print-assessment-title strong {
    color: var(--navy);
    font: 800 11pt/1.2 "Nunito Sans", sans-serif;
  }
  .print-assessment-title span {
    color: #637489;
    font-size: 7pt;
    font-weight: 800;
    letter-spacing: .06em;
    text-transform: uppercase;
    white-space: nowrap;
  }
  .print-student-row {
    display: grid;
    grid-template-columns: 1.9fr 1.2fr .8fr;
    gap: 16px;
    padding: 7px 0 8px;
    border-top: 1px solid #d2dde6;
    border-bottom: 1px solid #d2dde6;
    font-size: 7.8pt;
  }
  .print-student-row > span {
    display: flex;
    align-items: baseline;
    gap: 7px;
    white-space: nowrap;
  }
  .print-student-row b {
    color: #4a5a6d;
    font-size: 6.5pt;
    letter-spacing: .06em;
    text-transform: uppercase;
  }
  .print-student-row i {
    display: inline-block;
    flex: 1;
    min-width: 48px;
    border-bottom: 1px solid #8597a8;
  }
  .worksheet-print-directions {
    display: block !important;
    margin: 10px 0 12px;
    padding: 0 0 6px;
    border-bottom: 1px solid #e0e7ed;
    color: #405064;
    font-size: 7.8pt;
    font-weight: 600;
  }
  .worksheet-questions {
    margin-top: 0;
  }
}


/* Repeating print footer and print typography refinement */
@media print {
  @page {
    size: A4;
    margin: 11mm 12mm 18mm;
  }

  .worksheet-print-footer {
    position: fixed;
    left: 12mm;
    right: 12mm;
    bottom: 5mm;
    display: grid !important;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 12px;
    margin: 0;
    padding-top: 4px;
    border-top: 1px solid #c5d0da;
    color: #6a7b8f;
    background: #fff;
    font-family: "DM Sans", Arial, sans-serif;
    font-size: 6.8pt;
    line-height: 1.2;
    white-space: nowrap;
  }

  .worksheet-print-footer .footer-left {
    justify-self: start;
  }

  .worksheet-print-footer .footer-center {
    justify-self: center;
    letter-spacing: .01em;
  }

  .worksheet-print-footer .footer-right {
    justify-self: end;
  }

  .worksheet-print-footer strong {
    color: var(--navy);
    font-family: "Nunito Sans", "DM Sans", Arial, sans-serif;
    font-weight: 800;
  }

  .mcq-question {
    font-size: 9.2pt;
    line-height: 1.34;
  }

  .mcq-choice {
    font-size: 8.5pt;
    line-height: 1.3;
  }

  .worksheet-print-directions {
    font-size: 8.1pt;
    line-height: 1.35;
  }

  .print-assessment-title strong {
    font-size: 11.5pt;
  }
}


/* Final print pagination fixes: page-margin footer and compact first-page header */
@page {
  size: A4;
  margin: 11mm 12mm 17mm;

  @bottom-left {
    content: "SheetSpectrum";
    color: #153265;
    font-family: "Nunito Sans", "DM Sans", Arial, sans-serif;
    font-size: 6.8pt;
    font-weight: 800;
  }

  @bottom-center {
    content: "Learn. Practise. Succeed.";
    color: #6a7b8f;
    font-family: "DM Sans", Arial, sans-serif;
    font-size: 6.8pt;
  }

  @bottom-right {
    content: "www.sheetspectrum.com";
    color: #6a7b8f;
    font-family: "DM Sans", Arial, sans-serif;
    font-size: 6.8pt;
  }
}

@media print {
  /* The print-only header is a section; neutralize the site's generic 90px section padding. */
  .print-assessment-header {
    padding: 0 !important;
    margin: 0 0 8px !important;
  }

  /* Footer content is supplied by @page margin boxes, not by a fixed DOM element. */
  .worksheet-print-footer {
    display: none !important;
    position: static !important;
    inset: auto !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
  }

  /* Keep the first-page brand/header compact. */
  .worksheet-brand-header {
    margin: 0 0 7px !important;
    padding: 0 0 6px !important;
  }

  .print-assessment-title {
    margin-bottom: 5px !important;
  }

  .print-student-row {
    padding: 5px 0 6px !important;
  }

  .worksheet-print-directions {
    margin: 8px 0 10px !important;
    padding: 0 0 5px !important;
  }
}


/* Final print header rhythm and handwriting alignment */
@media print {
  .worksheet-brand-header {
    margin-bottom: 10px !important;
  }

  .print-assessment-title {
    margin: 0 0 10px !important;
  }

  .print-student-row {
    margin-bottom: 12px;
  }

  .print-student-row > span {
    align-items: baseline;
  }

  .print-student-row b {
    line-height: 1;
  }

  .print-student-row i {
    position: relative;
    top: 1.5px;
    border-bottom: 1px solid #8597a8;
  }

  .worksheet-print-directions {
    margin: 12px 0 14px !important;
    padding: 0 0 6px !important;
  }
}


/* Worksheet layout isolation: prevent site-wide section rhythm from leaking into the assessment UI. */
.print-worksheet .worksheet-progress {
  padding: 14px 16px;
}
.print-worksheet .attempt-result,
.print-worksheet .answer-gate {
  padding: 20px 22px;
}
.print-worksheet .print-assessment-header {
  padding: 0;
}


/* Compact, module-first worksheet library */
.worksheet-library-page {
  padding: 24px 0 78px;
}

.library-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 4px 0 20px;
  color: #718399;
  font-size: .86rem;
}

.library-breadcrumbs a:hover {
  color: var(--teal);
}

.library-compact-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  padding: 18px 0 22px;
  border-bottom: 1px solid var(--line);
}

.library-compact-header h1 {
  max-width: none;
  margin: 3px 0 7px;
  font-size: clamp(2rem, 4vw, 3.1rem);
}

.library-compact-header > div > p:last-child {
  margin: 0;
  color: var(--muted);
}

.library-count {
  margin: 0 0 5px;
  color: var(--navy);
  font-size: .88rem;
  font-weight: 800;
  white-space: nowrap;
}

.compact-filter-panel {
  margin: 18px 0 22px;
  padding: 14px 16px;
  border-radius: 14px;
  box-shadow: none;
}

.compact-filter-grid {
  grid-template-columns: 1fr 1fr 1.35fr auto;
  align-items: end;
  gap: 12px;
}

.compact-filter-actions {
  display: flex;
  align-items: end;
  min-height: 44px;
  padding-bottom: 3px;
}

.compact-results-toolbar {
  align-items: end;
  margin: 16px 0 14px;
}

.compact-results-toolbar h2 {
  margin: 0;
  color: var(--navy);
  font-size: 1.55rem;
}

.compact-results-toolbar .eyebrow {
  margin-bottom: 3px;
}

.module-groups {
  display: grid;
  gap: 18px;
}

.module-group {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.module-group-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.module-group-heading h3 {
  margin: 0;
  color: var(--navy);
  font-size: 1.35rem;
}

.module-group-heading .eyebrow {
  margin-bottom: 2px;
}

.module-group-heading > span {
  color: var(--muted);
  font-size: .8rem;
  font-weight: 700;
}

.module-worksheet-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.module-worksheet-card {
  display: grid;
  gap: 8px;
  min-height: 116px;
  padding: 14px 15px;
  border: 1px solid #dce7f0;
  border-radius: 12px;
  background: #fbfdff;
  transition: transform .18s, border-color .18s, box-shadow .18s;
}

.module-worksheet-card:hover {
  transform: translateY(-2px);
  border-color: #8ecfc6;
  box-shadow: 0 8px 20px rgb(21 50 101 / 7%);
}

.worksheet-context {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 7px;
  color: var(--teal);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .035em;
  line-height: 1.25;
  text-transform: uppercase;
}

.worksheet-context span + span::before {
  content: "·";
  padding-right: 7px;
  color: #9eb0c2;
}

.worksheet-number {
  color: var(--navy);
  font-weight: 800;
}

.module-worksheet-card strong {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 600;
}

.worksheet-open {
  align-self: end;
  color: var(--teal);
  font-size: .82rem;
  font-weight: 800;
}

.worksheet-open b {
  padding-left: 3px;
}

@media (max-width: 900px) {
  .compact-filter-grid {
    grid-template-columns: 1fr 1fr;
  }

  .compact-filter-actions {
    align-items: center;
  }

  .module-worksheet-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .worksheet-library-page {
    padding-top: 14px;
  }

  .library-compact-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .compact-filter-grid,
  .module-worksheet-grid {
    grid-template-columns: 1fr;
  }

  .compact-results-toolbar,
  .module-group-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}


/* Mathematics revision paper viewer */
.revision-paper-web { max-width: 860px; margin: 0 auto; padding: 42px 48px 36px; }
.revision-sheet-header { margin-bottom: 18px; }
.revision-sheet-brand { display: flex; justify-content: space-between; gap: 20px; color: #3b4f66; font-size: .84rem; }
.revision-sheet-brand strong { color: #0c736e; font-size: .92rem; }
.revision-sheet-rule { margin-top: 8px; border-top: 1px solid #0c736e; }
.revision-title-block { text-align: center; }
.revision-title-block h1 { max-width: none; margin: 0; color: #18407a; font: 800 1.55rem/1.2 "Nunito Sans", sans-serif; letter-spacing: -.025em; }
.revision-title-block h2 { margin: 6px 0 7px; color: #0c736e; font: 800 1.2rem/1.2 "Nunito Sans", sans-serif; letter-spacing: -.02em; }
.revision-title-block p { margin-bottom: 16px; color: #3b4f66; font-size: .86rem; }
.revision-title-block p span { padding: 0 8px; color: #9aabba; }
.revision-instructions { padding: 10px 0 12px; border-top: 1px solid #bfd1de; border-bottom: 1px solid #bfd1de; font-size: .88rem; }
.revision-instructions strong { color: #18407a; }
.revision-instructions p { margin: 3px 0 0; color: #475b70; }
.revision-section { padding: 17px 0 0 !important; }
.revision-section h3 { margin: 0 0 10px; color: #18407a; font-size: 1rem; letter-spacing: 0; }
.revision-question { break-inside: avoid; padding: 0 0 11px; color: #172436; font-size: .92rem; line-height: 1.5; }
.revision-question-text { margin-bottom: 5px; }
.revision-question-text > strong { color: #172436; }
.revision-options { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 22px; padding-left: 15px; }
.revision-option { min-width: 0; }
.revision-option strong { font-weight: 600; }
.revision-matching { display: grid; grid-template-columns: 1.4fr .6fr; gap: 22px; margin: 7px 0; padding: 9px 12px; border: 1px solid #dce7f0; border-radius: 9px; background: #fbfdff; }
.revision-matching p { margin: 3px 0; }
.revision-statements { margin: 6px 0 7px 25px; padding: 0; }
.revision-statements li { margin-bottom: 3px; }
.revision-sheet-footer { margin-top: 12px; padding-top: 8px; border-top: 1px solid #bfd1de; color: #0c736e; text-align: center; font-size: .78rem; }
.revision-paper-web mjx-container { overflow-x: auto; overflow-y: hidden; max-width: 100%; }

@media (max-width: 700px) {
  .revision-paper-web { padding: 28px 22px; }
  .revision-options, .revision-matching { grid-template-columns: 1fr; }
  .revision-sheet-brand { align-items: flex-start; flex-direction: column; gap: 2px; }
}

@media print {
  .revision-paper-web { max-width: none; padding: 0; border: 0; border-radius: 0; box-shadow: none; }
  .revision-section { padding-top: 12px !important; }
  .revision-question { font-size: 9.5pt; padding-bottom: 8pt; }
  .revision-title-block h1 { font-size: 15pt; }
  .revision-title-block h2 { font-size: 12pt; }
  .revision-sheet-header { margin-top: 0; }
}


/* Olympiad mock exam layout */
.olympiad-mock {
  max-width: 980px;
  padding: 34px 44px 30px;
}
.olympiad-mock .revision-sheet-header { margin-bottom: 10px; }
.olympiad-mock .mock-title-block {
  text-align: left;
  padding-bottom: 8px;
  border-bottom: 1px dotted #aebdca;
}
.olympiad-mock .mock-title-block h1 {
  color: #12213c;
  font-size: 1.62rem;
  letter-spacing: .01em;
  text-transform: uppercase;
}
.olympiad-mock .mock-title-block h2 {
  margin: 4px 0 0;
  color: #344b6a;
  font: 600 italic 1rem/1.25 "DM Sans", sans-serif;
}
.olympiad-mock .mock-meta-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 10px 0 11px;
  border-bottom: 3px solid #14233d;
  color: #516176;
  font-size: .85rem;
}
.olympiad-mock .mock-meta-row span { white-space: nowrap; }
.olympiad-mock .mock-meta-row strong {
  color: #384b67;
  font-weight: 800;
}
.olympiad-mock .mock-instructions {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-top: 18px;
  padding: 11px 14px 11px 14px;
  border: 1px solid #d8e2eb;
  border-left: 4px solid #1d2d49;
  background: #f8fafc;
  font-size: .84rem;
}
.olympiad-mock .mock-instructions strong {
  flex: 0 0 auto;
  color: #34465f;
}
.olympiad-mock .mock-instructions p {
  margin: 0;
  color: #3e5068;
}
.olympiad-mock .mock-section {
  padding-top: 18px !important;
}
.olympiad-mock .mock-section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 0 12px;
  padding: 8px 12px;
  border-left: 5px solid #0b8fcf;
  background: #edf2f6;
  color: #172436;
  font-size: .98rem;
  font-weight: 800;
  text-transform: uppercase;
}
.olympiad-mock .mock-section-heading small {
  color: #657890;
  font-size: .76rem;
  font-weight: 700;
  text-transform: none;
  white-space: nowrap;
}
.olympiad-mock .revision-question {
  padding-bottom: 8px;
  font-size: .9rem;
  line-height: 1.42;
}
.olympiad-mock .revision-question-text {
  margin-bottom: 3px;
}
.olympiad-mock .revision-options {
  gap: 2px 18px;
  padding-left: 20px;
}
.olympiad-mock .revision-options.mock-options-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.olympiad-mock .revision-options.mock-options-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.olympiad-mock .revision-options.mock-options-1 {
  grid-template-columns: 1fr;
}
.olympiad-mock .revision-option {
  line-height: 1.35;
}
.olympiad-mock .revision-matching {
  margin: 5px 0 6px;
  padding: 7px 10px;
  border-radius: 4px;
}
.olympiad-mock .revision-statements {
  margin-top: 4px;
  margin-bottom: 5px;
}
.olympiad-mock .reading-passage {
  margin: 8px 0 12px;
  padding: 12px 14px;
  border: 1px solid #d8e2eb;
  border-radius: 6px;
  background: #f8fafc;
  color: #2d3f55;
  line-height: 1.55;
}
.olympiad-mock .reading-passage p {
  margin: 0 0 8px;
}
.olympiad-mock .reading-passage p:last-child {
  margin-bottom: 0;
}
.olympiad-mock .reading-passage .passage-label {
  margin-bottom: 6px;
  color: #172436;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .02em;
}
.olympiad-mock .revision-sheet-footer {
  margin-top: 14px;
}

@media (max-width: 820px) {
  .olympiad-mock .mock-meta-row {
    grid-template-columns: 1fr 1fr;
    gap: 7px 18px;
  }
  .olympiad-mock .mock-section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }
  .olympiad-mock .mock-section-heading small { white-space: normal; }
  .olympiad-mock .revision-options.mock-options-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .olympiad-mock { padding: 26px 20px; }
  .olympiad-mock .mock-meta-row,
  .olympiad-mock .revision-options.mock-options-4,
  .olympiad-mock .revision-options.mock-options-2 {
    grid-template-columns: 1fr;
  }
  .olympiad-mock .mock-instructions {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media print {
  .olympiad-mock {
    max-width: none;
    padding: 0;
  }
  .olympiad-mock .mock-title-block h1 { font-size: 16pt; }
  .olympiad-mock .mock-title-block h2 { font-size: 10.5pt; }
  .olympiad-mock .mock-meta-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10pt;
    padding: 6pt 0 7pt;
    font-size: 8.5pt;
  }
  .olympiad-mock .mock-instructions {
    margin-top: 10pt;
    padding: 7pt 8pt;
    font-size: 8.5pt;
  }
  .olympiad-mock .mock-section { padding-top: 9pt !important; }
  .olympiad-mock .mock-section-heading {
    margin-bottom: 6pt;
    padding: 5pt 7pt;
    font-size: 9.5pt;
  }
  .olympiad-mock .mock-section-heading small { font-size: 7.5pt; }
  .olympiad-mock .revision-question {
    padding-bottom: 5pt;
    font-size: 8.8pt;
    line-height: 1.32;
  }
  .olympiad-mock .revision-options { gap: 1pt 10pt; }
  .olympiad-mock .revision-options.mock-options-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .olympiad-mock .revision-options.mock-options-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}


/* Inline visual reasoning blocks for Olympiad mocks */
.mock-visual {
  margin: 8px 0 10px 22px;
  max-width: 520px;
}
.mock-symbol-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(64px, 110px));
  gap: 6px;
}
.mock-symbol-grid span,
.mock-symbol-row span,
.mock-net span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid #cfd9e3;
  background: #fbfcfd;
  border-radius: 4px;
  font-weight: 700;
  font-size: 1.1rem;
}
.mock-symbol-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(58px, 92px));
  gap: 6px;
}
.mock-fold {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid #d8e2eb;
  background: #fbfcfd;
  border-radius: 4px;
  font-size: .88rem;
}
.mock-net {
  display: grid;
  grid-template-columns: repeat(3, 52px);
  grid-auto-rows: 52px;
  gap: 3px;
}
.mock-net span:empty {
  visibility: hidden;
}
@media print {
  .mock-visual { break-inside: avoid; margin-top: 4pt; margin-bottom: 5pt; }
  .mock-symbol-grid span,
  .mock-symbol-row span,
  .mock-net span { min-height: 28pt; font-size: 9pt; }
}

.grade7-geometry-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.25rem 0 1.5rem;
}
.grade7-geometry-figure {
  margin: 0;
  padding: .75rem;
  border: 1px solid var(--border, #d8dde8);
  border-radius: 12px;
  background: #fff;
}
.grade7-geometry-figure svg { width: 100%; height: auto; display: block; }
.grade7-geometry-figure figcaption { text-align: center; font-size: .85rem; font-weight: 600; margin-top: .35rem; }
.geom-line { stroke: #1f2d4d; stroke-width: 2.2; }
.geom-transversal { stroke: #1f2d4d; stroke-width: 2.2; }
.geom-label { font: italic 15px serif; fill: #111827; }
.geom-angle { font: 700 14px "DM Sans", sans-serif; fill: #111827; text-anchor: middle; dominant-baseline: middle; paint-order: stroke; stroke: #ffffff; stroke-width: 3px; stroke-linejoin: round; }
.geom-parallel { fill: #111827; }
@media (max-width: 700px) { .grade7-geometry-figures { grid-template-columns: 1fr; } }
@media print {
  .grade7-geometry-figures { grid-template-columns: repeat(2, 1fr); gap: .5rem; }
  .grade7-geometry-figure { break-inside: avoid; }
}


/* Subject illustration treatment for on-screen worksheet views */
@media screen {
  .worksheet-subject-mathematics .revision-title-block,
  .worksheet-subject-science .revision-title-block,
  .worksheet-subject-english .revision-title-block {
    position: relative;
    min-height: 152px;
    margin-bottom: 16px;
    padding: 24px 252px 22px 24px;
    overflow: hidden;
    border: 1px solid #dceaf2;
    border-radius: 18px;
    background: linear-gradient(130deg,#fbfdff,#f2faf8);
    text-align: left;
  }
  .worksheet-subject-mathematics .revision-title-block::after,
  .worksheet-subject-science .revision-title-block::after,
  .worksheet-subject-english .revision-title-block::after {
    content: "";
    position: absolute;
    z-index: 0;
    top: 5px;
    right: 14px;
    width: 228px;
    height: 142px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    pointer-events: none;
  }
  .worksheet-subject-mathematics .revision-title-block::after { background-image: url("assets/worksheet-math-premium.svg"); }
  .worksheet-subject-science .revision-title-block::after { background-image: url("assets/worksheet-science-premium.svg"); }
  .worksheet-subject-english .revision-title-block::after { background-image: url("assets/worksheet-english-premium.svg"); }
  .worksheet-subject-mathematics .revision-title-block > *,
  .worksheet-subject-science .revision-title-block > *,
  .worksheet-subject-english .revision-title-block > * { position: relative; z-index: 1; }
  .worksheet-subject-mathematics .revision-title-block h1,
  .worksheet-subject-science .revision-title-block h1,
  .worksheet-subject-english .revision-title-block h1 { font-size: 1.38rem; }
  .worksheet-subject-mathematics .revision-title-block h2,
  .worksheet-subject-science .revision-title-block h2,
  .worksheet-subject-english .revision-title-block h2 { margin-top: 7px; font-size: 1.38rem; }
  .worksheet-subject-mathematics .revision-title-block p,
  .worksheet-subject-science .revision-title-block p,
  .worksheet-subject-english .revision-title-block p { margin-bottom: 8px; }
}

@media screen and (max-width:700px) {
  .worksheet-subject-mathematics .revision-title-block,
  .worksheet-subject-science .revision-title-block,
  .worksheet-subject-english .revision-title-block {
    min-height: 268px;
    padding: 20px 18px 142px;
  }
  .worksheet-subject-mathematics .revision-title-block::after,
  .worksheet-subject-science .revision-title-block::after,
  .worksheet-subject-english .revision-title-block::after {
    top: auto;
    right: 50%;
    bottom: 2px;
    width: 235px;
    height: 135px;
    transform: translateX(50%);
  }
}

@media print {
  .worksheet-subject-mathematics .revision-title-block,
  .worksheet-subject-science .revision-title-block,
  .worksheet-subject-english .revision-title-block {
    min-height: 0;
    padding: 0;
    border: 0;
    background: none;
    text-align: center;
  }
  .worksheet-subject-mathematics .revision-title-block::after,
  .worksheet-subject-science .revision-title-block::after,
  .worksheet-subject-english .revision-title-block::after { display: none !important; }
}


/* Launch readiness: keyboard and mobile navigation */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid rgba(11, 158, 139, .38);
  outline-offset: 3px;
  border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 780px) {
  .site-header {
    flex-wrap: wrap;
    align-items: center;
    min-height: 0;
    padding: 12px 0 10px;
  }
  .site-header nav {
    display: flex !important;
    order: 3;
    width: 100%;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 0 4px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .site-header nav::-webkit-scrollbar { display: none; }
  .site-header nav a {
    flex: 0 0 auto;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255,255,255,.9);
    white-space: nowrap;
    font-size: .78rem;
    line-height: 1;
  }
  .site-header .button { display: none !important; }
}


/* Grade 5 answer-sheet experience */
.worksheet-answer-actions {
  display: flex;
  justify-content: flex-end;
  margin: 12px 0 20px;
}
.worksheet-answer-actions .secondary-button {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.answer-sheet-paper {
  max-width: 900px;
  margin: 0 auto;
}
.answer-sheet-title {
  margin-bottom: 18px;
}
.answer-sheet-note {
  margin-bottom: 22px;
}
.answer-sheet-list {
  display: grid;
  gap: 14px;
}
.answer-sheet-item {
  padding: 16px 18px;
  border: 1px solid #dce6ec;
  border-radius: 14px;
  background: #fff;
  break-inside: avoid;
}
.answer-sheet-question {
  margin-bottom: 10px;
  color: var(--ink);
  line-height: 1.55;
}
.answer-sheet-question-detail {
  margin: -2px 0 12px 28px;
  color: #536579;
  font-size: .94rem;
  line-height: 1.5;
}
.answer-sheet-question-detail .revision-matching,
.answer-sheet-question-detail .revision-statements,
.answer-sheet-question-detail .mock-visual {
  margin: 8px 0;
}

.answer-sheet-answer {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--navy);
}
.answer-badge {
  display: inline-grid;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
}
.answer-sheet-explanation {
  margin: 10px 0 0 38px;
  color: #536579;
  line-height: 1.55;
}
@media (max-width: 680px) {
  .worksheet-answer-actions { justify-content: stretch; }
  .worksheet-answer-actions .secondary-button { width: 100%; justify-content: center; }
  .answer-sheet-item { padding: 14px; }
  .answer-sheet-explanation { margin-left: 0; }
}
@media print {
  .answer-sheet-item {
    padding: 8px 0;
    border: 0;
    border-bottom: 1px solid #d8e1e7;
    border-radius: 0;
  }
  .answer-sheet-list { gap: 0; }
  .answer-sheet-explanation { margin-top: 5px; }
}


/* Shared interactive worksheet runtime */
.interactive-control-panel{
  display:flex;justify-content:space-between;gap:24px;align-items:center;
  margin:18px 0 20px;padding:18px 20px;border:1px solid #dbe7ef;border-radius:18px;
  background:linear-gradient(120deg,#f6fbfa,#f8fbff);
}
.interactive-control-copy{display:grid;gap:3px}
.interactive-control-copy .eyebrow{margin:0;font-size:.68rem}
.interactive-control-copy>strong{color:var(--navy);font-size:1rem}
.interactive-control-copy>span{color:var(--muted);font-size:.82rem}
.interactive-control-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.interactive-timer{
  min-width:72px;padding:8px 11px;border-radius:10px;background:#fff;color:var(--navy);
  font-weight:800;text-align:center;font-variant-numeric:tabular-nums;border:1px solid #dce7ef;
}
.interactive-timer.is-low{color:#a33d2f;border-color:#e5b4aa;background:#fff8f6}

.interactive-worksheet .revision-option,
.interactive-worksheet .revision-options>div{
  transition:border-color .15s ease,background .15s ease,box-shadow .15s ease,transform .15s ease;
}
.interactive-worksheet .interactive-option{
  cursor:pointer;border:1px solid transparent;border-radius:10px;padding:7px 9px;
}
.interactive-worksheet .interactive-option:hover{
  border-color:#bddbd5;background:#f5fbf9;
}
.interactive-worksheet .interactive-option:focus-visible{
  outline:3px solid rgba(11,158,139,.22);outline-offset:2px;
}
.interactive-worksheet .interactive-option.is-selected{
  border-color:#6ec6b7;background:#eaf8f4;box-shadow:0 0 0 1px rgba(11,158,139,.06);
}
.interactive-worksheet .interactive-option.is-selected strong{color:var(--teal)}
.interactive-worksheet .revision-question.is-locked .interactive-option{cursor:default}
.interactive-worksheet .revision-question.is-locked .interactive-option:hover{transform:none}

.interactive-olympiad.awaiting-mock-start .revision-section{
  opacity:.48;filter:saturate(.7);pointer-events:none;user-select:none;
}
.interactive-olympiad.awaiting-mock-start .interactive-control-panel{
  border-color:#d8c28f;background:linear-gradient(120deg,#fffaf0,#f6fbfa);
}

.interactive-submit-area{
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  margin:26px 0 18px;padding:20px 22px;border-top:1px solid #dce7ef;border-bottom:1px solid #dce7ef;
}
.interactive-submit-area strong{display:block;color:var(--navy);font-size:1rem}
.interactive-submit-area p{margin:4px 0 0;color:var(--muted);font-size:.82rem}
.interactive-submit-actions{display:flex;gap:10px;flex-wrap:wrap}

.interactive-result{
  margin:18px 0 24px;padding:24px;border:1px solid #d8e5ed;border-radius:20px;background:#fbfdfd;
}
.interactive-result[hidden]{display:none}
.result-gate h2,.result-summary h2{margin:5px 0 8px;color:var(--navy);font-size:1.6rem}
.result-gate>p:not(.eyebrow){max-width:650px;color:var(--muted);line-height:1.6}
.signin-status{margin:12px 0 0!important;padding:10px 12px;border-radius:10px;background:#fff8e8;color:#7c612c!important;font-size:.82rem}
.result-stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}
.result-stats span{padding:9px 12px;border:1px solid #e1e9ee;border-radius:10px;background:#fff;color:#5a6d80;font-size:.82rem}
.result-stats strong{color:var(--navy)}
.result-review{margin-top:24px}
.result-review h3{margin:0 0 12px;color:var(--navy)}
.review-item{margin:8px 0;border:1px solid #dfe8ed;border-radius:12px;background:#fff;overflow:hidden}
.review-item summary{display:grid;grid-template-columns:48px 90px 1fr;gap:10px;align-items:center;padding:12px 14px;cursor:pointer}
.review-item summary span{font-weight:800;color:var(--navy)}
.review-item summary strong{font-size:.82rem}
.review-item summary small{color:var(--muted)}
.review-item.is-correct summary strong{color:#16836f}
.review-item.is-incorrect summary strong{color:#b04e3f}
.review-item>div{padding:0 14px 14px}
.review-item>div p{margin:7px 0;color:#43566d;line-height:1.55;font-size:.88rem}
.review-no-explanation{color:#7d8996!important;font-style:italic}

@media(max-width:720px){
  .interactive-control-panel,.interactive-submit-area{align-items:flex-start;flex-direction:column}
  .interactive-control-actions,.interactive-submit-actions{width:100%}
  .interactive-control-actions .secondary-button,.interactive-submit-actions .button,.interactive-submit-actions .secondary-button{flex:1}
  .review-item summary{grid-template-columns:42px 1fr}
  .review-item summary small{grid-column:1/-1}
}

@media print{
  .interactive-control-panel,.interactive-submit-area,.interactive-result{display:none!important}
  .interactive-worksheet .interactive-option{
    border:0!important;background:transparent!important;padding:0!important;box-shadow:none!important;
  }
  .interactive-olympiad.awaiting-mock-start .revision-section{opacity:1!important;filter:none!important}
}


/* Authentication controls */
.header-auth {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 148px;
}
.auth-google-button[hidden],
.auth-user[hidden] { display: none !important; }
.auth-google-button {
  white-space: nowrap;
}
.auth-user {
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: 220px;
  padding: 6px 9px 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
}
.auth-user > span {
  overflow: hidden;
  color: var(--navy);
  font-size: .78rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.auth-signout {
  padding: 4px 7px;
  border: 0;
  background: transparent;
  color: var(--teal);
  font: inherit;
  font-size: .72rem;
  font-weight: 800;
  cursor: pointer;
}
@media (max-width: 780px) {
  .header-auth { margin-left: auto; min-width: 0; }
  .header-auth .button { display: inline-flex !important; }
  .auth-google-button { padding: 8px 11px; font-size: .76rem; }
  .auth-user { max-width: 165px; }
}


/* Keep worksheet runtime sections compact; do not inherit homepage section spacing */
.interactive-worksheet .interactive-control-panel{
  padding:18px 20px!important;
}
.interactive-worksheet .interactive-result{
  padding:24px!important;
}
.interactive-worksheet .revision-section,
.interactive-worksheet .mock-section{
  padding-top:0!important;
  padding-bottom:0!important;
}


/* Worksheet option selection affordance */
.interactive-worksheet .interactive-options{
  display:grid;
  gap:6px;
}
.interactive-worksheet .interactive-option{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:8px 42px 8px 10px;
}
.interactive-worksheet .interactive-option::after{
  content:"";
  position:absolute;
  right:13px;
  top:50%;
  width:16px;
  height:16px;
  border:2px solid #a8b7c6;
  border-radius:50%;
  background:#fff;
  transform:translateY(-50%);
  box-sizing:border-box;
}
.interactive-worksheet .interactive-option.is-selected::after{
  border:5px solid var(--teal);
}
.interactive-worksheet .interactive-option.is-selected{
  border-color:#6ec6b7;
  background:#eef9f6;
  box-shadow:0 0 0 1px rgba(11,158,139,.08);
}
.interactive-worksheet .revision-question.is-locked .interactive-option::after{
  opacity:.75;
}
@media print{
  .interactive-worksheet .interactive-option::after{
    display:none!important;
  }
}