.trainer-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.trainer-header > .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-top: 20px;
  padding-bottom: 20px;
}
.trainer-header a:last-child {
  font-size: 0.85rem;
  color: var(--muted);
}
.trainer-main {
  max-width: 1000px;
  padding-top: 32px;
  padding-bottom: 44px;
}
.trainer-intro {
  max-width: 760px;
  padding: 18px 0 22px;
}
.trainer-intro h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
}
.trainer-intro .lead {
  font-size: 1.15rem;
}
.trainer-jump {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 12px 0 30px;
}
.trainer-jump a {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  font-size: 0.9rem;
}
.lesson-plan {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  scroll-margin-top: 24px;
}
.plan-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.plan-heading h2 {
  font-size: 1.7rem;
}
.plan-heading span,
.trainer-tip {
  color: var(--muted);
  font-size: 0.9rem;
}
.trainer-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 22px 0;
}
.trainer-main table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  margin: 20px 0;
}
.trainer-main caption {
  text-align: left;
  font-weight: 700;
  margin-bottom: 8px;
}
.trainer-main td,
.trainer-main th {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.trainer-main tbody th {
  width: 110px;
  white-space: nowrap;
  font-size: 0.9rem;
}
.group-links li {
  margin: 12px 0;
}
.trainer-footer {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  padding-bottom: 26px;
  font-size: 0.85rem;
  color: var(--muted);
}
.sheet-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.student-line {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.worksheet-board {
  display: block;
  width: 100%;
  max-width: 365px;
  height: auto;
  margin: 8px auto;
}
.worksheet-board .coord {
  text-anchor: middle;
  font-size: 15px;
  fill: #222;
}
.chess-symbol {
  font-family: "Segoe UI Symbol", "DejaVu Sans", serif;
  text-anchor: middle;
  font-size: 35px;
  fill: #111;
}
.sheet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.sheet-grid figure {
  margin: 0;
  break-inside: avoid;
}
.sheet-grid figcaption {
  font-size: 0.95rem;
  line-height: 1.7;
}
.sheet-questions li {
  margin: 15px 0;
}
.answer-key {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 2px solid var(--line);
}
.answer-key li {
  margin: 15px 0;
}
@media (max-width: 650px) {
  .trainer-header > .wrap {
    align-items: flex-start;
  }
  .trainer-header .brand {
    font-size: 1.1rem;
  }
  .sheet-grid {
    grid-template-columns: 1fr;
  }
  .sheet-actions {
    align-items: flex-start;
    flex-direction: column;
  }
  .trainer-main td,
  .trainer-main th {
    padding: 9px;
  }
  .trainer-main tbody th {
    width: 80px;
    font-size: 0.8rem;
  }
}
@page {
  size: A4;
  margin: 16mm;
}
@media print {
  html,
  body {
    background: #fff !important;
    color: #111 !important;
    font-size: 11pt;
  }
  .trainer-header,
  .trainer-footer,
  .sheet-actions,
  .trainer-jump,
  .back {
    display: none !important;
  }
  .trainer-main {
    max-width: none;
    padding: 0;
    margin: 0;
  }
  .trainer-main h1 {
    font-size: 22pt;
  }
  .trainer-main h2 {
    font-size: 17pt;
  }
  .sheet-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12mm;
  }
  .worksheet-board {
    max-width: 75mm;
  }
  .answer-key {
    break-before: page;
    border: 0;
    margin: 0;
    padding: 0;
  }
  .sheet-grid figcaption a {
    display: none;
  }
  .sheet-grid figure,
  .sheet-questions li,
  .lesson-plan tr {
    break-inside: avoid;
  }
  a {
    color: #111 !important;
  }
  .worksheet-board {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
  .student-line {
    margin: 10px 0;
  }
  .trainer-main table {
    background: #fff;
  }
  .trainer-actions {
    display: none;
  }
}
.trainer-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 24px 0 4px;
  color: var(--muted);
  font-size: 0.85rem;
}
.trainer-start {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  margin-bottom: 26px;
}
.trainer-start h2 {
  font-size: 1.2rem;
}
.trainer-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 30px;
}
.trainer-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-margin-top: 20px;
}
.trainer-card h2 {
  font-size: 1.3rem;
  margin: 0;
}
.trainer-card p {
  font-size: 0.9rem;
  margin: 0;
}
.trainer-card > .btn {
  margin-top: auto;
  font-size: 0.85rem;
  text-align: center;
}
.trainer-card > a:last-child {
  font-size: 0.82rem;
  margin-top: 5px;
}
.trainer-card .qn {
  font-size: 0.72rem;
  color: var(--muted);
}
.plan-readiness {
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.plan-readiness h2 {
  font-size: 1.3rem;
}
.plan-readiness h3 {
  font-size: 1.05rem;
  margin-top: 20px;
}
.plan-readiness li,
.lesson-plan li {
  margin: 10px 0;
}
.phase-list {
  list-style: none;
  padding: 0;
  counter-reset: phases;
}
.phase-list > li {
  border-left: 3px solid var(--line);
  padding: 0 0 18px 22px;
  margin: 22px 0;
}
.phase-heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.phase-heading span {
  color: var(--muted);
  font-size: 0.85rem;
  min-width: 70px;
}
.phase-heading h3 {
  font-size: 1.2rem;
  margin: 0;
}
.phase-list p {
  font-size: 0.95rem;
  line-height: 1.7;
}
.table-scroll {
  overflow-x: auto;
}
.trainer-main tbody th {
  white-space: normal;
  width: 30%;
  min-width: 130px;
}
.exit-ticket {
  padding: 18px 22px;
  border-left: 4px solid var(--dot);
  background: var(--surface);
  margin: 24px 0;
  break-inside: avoid;
}
.exit-ticket h2 {
  font-size: 1.1rem;
}
.exit-ticket p {
  font-size: 0.92rem;
}
.sheet-actions > div {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.sheet-actions .btn {
  font-size: 0.82rem;
  padding: 10px 14px;
}
.print-help {
  font-size: 0.82rem;
  color: var(--muted);
}
.sheet-label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 20px;
}
.sheet-notice {
  font-size: 0.9rem;
  border-left: 3px solid var(--line);
  padding-left: 14px;
}
.sheet-questions li {
  line-height: 1.85;
  padding-left: 5px;
}
.sheet-source {
  font-size: 0.72rem;
  color: var(--muted);
}
.tactic-questions {
  display: grid;
  gap: 24px;
}
.tactic-question {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  break-inside: avoid;
}
.tactic-question h2 {
  font-size: 1.1rem;
  line-height: 1.55;
}
.tactic-question .worksheet-board {
  max-width: 315px;
}
.side-label {
  font-weight: 800;
  font-size: 0.88rem;
}
.diagram-legend {
  font-size: 0.77rem;
  color: var(--muted);
  line-height: 1.6;
}
.screen-link {
  font-size: 0.85rem;
}
.student-sheet > h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}
.answer-key h3 {
  font-size: 1.15rem;
  margin-top: 24px;
}
.trainer-main a:focus-visible,
.trainer-main button:focus-visible {
  outline: 3px solid var(--dot);
  outline-offset: 4px;
}
@media (max-width: 800px) {
  .trainer-cards {
    grid-template-columns: 1fr;
  }
  .trainer-card {
    gap: 12px;
  }
  .trainer-card > .btn {
    align-self: flex-start;
  }
  .trainer-intro h1 {
    font-size: 2.3rem;
  }
}
@media (max-width: 560px) {
  .tactic-question {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .trainer-start,
  .plan-readiness {
    padding: 18px;
  }
  .phase-list > li {
    padding-left: 14px;
  }
}
@media print {
  .print-help,
  .screen-link {
    display: none !important;
  }
  .trainer-cards {
    display: block;
  }
  .trainer-card {
    break-inside: avoid;
    margin-bottom: 10mm;
  }
  .plan-readiness,
  .exit-ticket {
    background: #fff;
    border-color: #999;
  }
  .phase-list > li {
    break-inside: avoid;
  }
  .student-sheet h1 {
    font-size: 20pt;
  }
  .student-sheet p,
  .answer-key p {
    font-size: 10pt;
  }
  .sheet-grid {
    gap: 8mm;
  }
  .tactic-questions {
    display: block;
  }
  .tactic-question {
    grid-template-columns: 70mm minmax(0, 1fr);
    gap: 8mm;
    padding: 4mm 0;
    margin: 0;
    border-color: #aaa;
  }
  .tactic-question h2 {
    font-size: 10.5pt;
  }
  .tactic-question .worksheet-board {
    width: 70mm;
    max-width: 70mm;
    margin: 0;
  }
  .diagram-legend {
    font-size: 8pt;
  }
  .side-label {
    font-size: 10pt;
    margin: 0;
  }
  .tactic-question p {
    margin: 2mm 0;
  }
  .sheet-questions li {
    font-size: 10.5pt;
    line-height: 1.65;
    margin: 3mm 0;
  }
  .exit-ticket {
    padding: 3mm 4mm;
    margin: 4mm 0;
  }
  .exit-ticket h2 {
    font-size: 11pt;
  }
  .exit-ticket p {
    margin: 2mm 0;
  }
  .sheet-label {
    font-size: 8pt;
    margin: 0;
  }
  .student-line {
    font-size: 10pt;
    padding: 2mm 0;
  }
  .answer-key li {
    font-size: 10.5pt;
    line-height: 1.6;
  }
  .sheet-source {
    font-size: 7pt !important;
  }
  body[data-print-mode="student"] .answer-key {
    display: none !important;
  }
  body[data-print-mode="answers"] .student-sheet {
    display: none !important;
  }
  body[data-print-mode="answers"] .answer-key {
    break-before: auto !important;
  }
  body[data-print-mode="answers"] .answer-key h2 {
    margin-top: 0;
  }
}