/* Norskbro 11: less repetition, readable lessons and a shared navy/green profile. */
main, .nb-workspace-content, .nb-drive-main, .nb-portal-workspace,
.nb-messenger-main, .nb-curriculum-card, .nb-compare-card { min-width: 0; }
.nb-chat-back { display: none; }
@media (max-width: 700px) {
  [data-messenger].is-chat-open .nb-messenger-sidebar,
  [data-messenger]:not(.is-chat-open) .nb-messenger-main { display: none; }
  [data-messenger] .nb-messenger-sidebar nav { max-height: min(60dvh, 520px); }
  .nb-chat-back { display: inline-flex; min-height: 44px; margin-bottom: 14px; }
}
.nb-workspace-brand, .nb-workspace-bar strong, .nb-workspace-user,
.nb-workspace-nav nav a, .nb-student-info h3 { color: var(--navy-900); }
.nb-workspace-nav nav a[aria-current="page"] {
  background: var(--green-100); color: var(--navy-900);
  box-shadow: inset 3px 0 var(--green-600);
}
.nb-workspace-user-avatar, .nb-student-avatar { background: var(--green-100); color: var(--navy-900); }
.nb-drive-action { min-height: 44px; white-space: normal; }
.nb-workspace .nb-student-row .nb-drive-action { min-height: 44px; }
.nb-drive-inline-actions { flex-wrap: wrap; }
.nb-drive-inline-actions > *, .nb-portal-top-actions > * { max-width: 100%; }
input:not([type="checkbox"]):not([type="radio"]), select, textarea { min-width: 0; }
input[type="file"], audio, video { max-width: 100%; }
textarea { resize: vertical; }
.nb-drive-breadcrumbs, .nb-drive-file-name, .nb-student-info,
.nb-chat-draft-file, .nb-portal-heading p, .nb-workspace-user { overflow-wrap: anywhere; }
.nb-drive-toolbar, .nb-curriculum-selection { gap: 12px; }
.nb-route-section, .nb-course-compare, .nb-package, .package-section,
.course-practice, .nb-teacher, .nb-faq-section { padding-block: clamp(44px, 5vw, 72px); }
.nb-hero { min-height: 0; padding-block: clamp(44px, 6vw, 80px); }
.nb-hero-lead { margin-bottom: 18px; }
.nb-hero-actions { margin-bottom: 26px; }
.nb-section-heading, .section-head { margin-bottom: 28px; }
.nb-route-shell { padding: 24px; }
.nb-route-courses > li > a { padding: 20px; }
.nb-music-teaser { padding-block: 48px; }
.nb-faq-section details { margin-block: 10px; }

/* The global section padding must not create a huge gap around every exercise. */
.nb-lesson-section { padding: 0; margin: 24px 0; }
.nb-lesson-section h3 { color: var(--navy-900); margin-bottom: 12px; }
.nb-lesson-intro > p { overflow-wrap: anywhere; }
.nb-lesson-copy { max-width: 68ch; line-height: 1.75; }
.nb-lesson-illustration {
  display: block; width: 100%; height: auto; max-height: 230px;
  object-fit: contain; border-radius: 12px; background: var(--green-50);
  margin-top: 20px;
}
.nb-lesson-words, .nb-lesson-example, .nb-lesson-key { background: var(--green-50); color: var(--ink); }
.nb-lesson-example { border-left-color: var(--green-600); }
.nb-lesson-help > summary, .nb-lesson-script > summary,
.nb-homework-library > summary, .nb-teacher-library-key > summary { color: var(--navy-900); }
.nb-curriculum-intro { background: var(--green-50); }
.nb-curriculum-book {
  display: grid; grid-template-columns: minmax(180px, .65fr) minmax(0, 1.35fr);
  align-items: center; gap: 28px; padding: 24px; margin-bottom: 28px;
  border: 1px solid var(--line); border-radius: 16px; background: white;
}
.nb-curriculum-book > img { width: 100%; height: auto; border-radius: 10px; }
.nb-curriculum-book h2 { font-size: clamp(1.45rem, 2.7vw, 2rem); margin: 8px 0 12px; }
.nb-curriculum-book p { color: var(--muted); margin-bottom: 14px; }
.nb-curriculum-book-links { margin: 0; }
.nb-curriculum-book-links .btn { font-size: .9rem; min-height: 46px; padding: 11px 14px; }
.nb-curriculum-card { padding: 18px; gap: 10px; }
.nb-curriculum-card h3 { color: var(--navy-900); }
.nb-curriculum-select { color: var(--green-700); }
.nb-curriculum-grid { scroll-margin-top: 28px; }
.nb-curriculum-pagination {
  display: flex; justify-content: center; align-items: center;
  flex-wrap: wrap; gap: 18px; margin: 24px 0;
}
.nb-curriculum-pagination > span { color: var(--muted); font-size: .9rem; }
.nb-curriculum-pagination button:disabled { opacity: .45; cursor: default; }
.nb-curriculum-dialog-actions { padding-bottom: 14px; margin-bottom: 16px; }
.nb-drive-dialog {
  max-width: calc(100vw - 32px); max-height: calc(100dvh - 32px);
  overflow-y: auto; overscroll-behavior: contain; padding: 30px;
}
.nb-drive-dialog::backdrop { background: rgb(3 27 53 / 45%); }
.nb-dialog-close { min-width: 44px; min-height: 44px; }
.nb-drive-dialog h2 { padding-right: 32px; overflow-wrap: anywhere; }
.nb-portal-quick-actions > button { min-height: 125px; background: var(--green-50); color: var(--navy-900); }
.nb-portal-homework-card, .nb-portal-assignment { padding: 18px; }
.nb-portal-progress-card, .nb-portal-feedback { background: var(--green-50); }
.nb-portal-goals small { white-space: normal; text-align: right; }

@media (max-width: 1080px) {
  .nb-site-header .nav > nav { display: none; }
  .nb-site-header .brand-menu { display: block; margin-left: auto; }
  .nb-workspace-content > main.wrap { padding-inline: 24px; }
}
@media (max-width: 900px) {
  .nb-portal-layout { gap: 18px; }
  .nb-portal-sidebar { padding: 14px; }
  .nb-portal-course { padding-bottom: 14px; margin-bottom: 10px; }
  .nb-portal-sidebar nav { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .nb-portal-sidebar nav button { padding: 10px 8px; font-size: .9rem; }
  .nb-curriculum-book { gap: 20px; grid-template-columns: minmax(160px, .6fr) minmax(0, 1.4fr); }
}
@media (max-width: 760px) {
  .nb-workspace-nav { padding: 14px 16px 12px; }
  .nb-workspace-nav nav { margin-top: 12px; scrollbar-width: thin; }
  .nb-workspace-nav nav a { color: var(--navy-900); }
  .nb-workspace-nav-bottom { margin-top: 8px; }
  .nb-workspace-bar { min-height: 54px; padding: 10px 16px; }
  .nb-workspace-content > main.wrap { padding: 22px 16px 32px; }
  .nb-workspace .nb-drive-heading h1, .nb-hub-heading h1 { font-size: 2rem; }
  .nb-hub-heading { gap: 12px; }
  .nb-hub-heading > .btn { width: auto; }
  .nb-workspace .nb-drive-heading, .nb-hub-heading { margin-bottom: 18px; }
  .nb-workspace .nb-drive-layout { gap: 16px; }
  .nb-drive-sidebar { position: static; }
  .nb-curriculum-book { padding: 18px; }
  .nb-messenger-sidebar, .nb-messenger-main { padding: 14px; }
  .nb-messenger-sidebar nav { max-height: 164px; }
  .nb-messenger .nb-chat-thread, .nb-chat-page .nb-chat-thread { height: clamp(240px, 43dvh, 380px); }
  .nb-chat-form-actions { gap: 8px; }
  .nb-messenger .nb-chat-form-actions > * { flex: 1 1 auto; }
  .nb-messenger .nb-chat-upload { flex-basis: 100%; }
  .nb-drive-list { max-width: 100%; overflow-x: auto; }
  .nb-drive-dialog { padding: 24px 18px; }
  .nb-section-heading { gap: 18px; }
  .footer-clean { gap: 28px; }
}
@media (max-width: 620px) {
  body { font-size: 1rem; }
  .wrap { width: calc(100% - 32px); }
  input, select, textarea { font-size: 16px; }
  .nb-portal-main { padding-top: 24px; }
  .nb-portal-panel { padding: 20px 14px; }
  .nb-portal-chat-panel { padding: 18px 10px; }
  .nb-portal-quick-actions { grid-template-columns: 1fr; gap: 10px; }
  .nb-portal-quick-actions > button { min-height: 94px; padding: 15px; gap: 5px; }
  .nb-portal-sidebar nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nb-portal-heading { gap: 10px; margin-bottom: 18px; }
  .nb-portal-top-actions { justify-content: flex-start; gap: 8px; }
  .nb-portal-heading h1 { font-size: 2rem; }
  .nb-portal-file-toolbar label { min-width: 0; flex-basis: 100%; }
  .nb-portal-counters { margin-block: 18px; }
  .nb-curriculum-book { grid-template-columns: 1fr; gap: 16px; }
  .nb-curriculum-book > img { max-height: 170px; object-fit: contain; background: var(--green-50); }
  .nb-curriculum-book-links { display: grid; grid-template-columns: 1fr; }
  .nb-curriculum-filters { gap: 12px; }
  .nb-curriculum-selection { align-items: stretch; }
  .nb-curriculum-selection > span { flex-basis: 100%; }
  .nb-curriculum-selection strong { margin-right: auto; }
  .nb-curriculum-pagination { gap: 10px; }
  .nb-curriculum-pagination button { padding-inline: 14px; }
  .nb-lesson-illustration { max-height: 180px; margin-top: 16px; }
  .nb-lesson-words { padding: 16px; }
  .nb-route-shell { padding: 16px; }
  .nb-route-detail { gap: 12px; }
  .nb-route-detail h3 { font-size: 1.15rem; }
  .nb-route-courses > li > a { padding: 18px; }
  .nb-music-teaser { padding-block: 36px; }
  footer { padding-block: 36px; }
  .footer-links { gap: 18px; }
}
@media (max-width: 500px) {
  .nb-site-header .nav { position: relative; gap: 8px; min-height: 68px; flex-wrap: nowrap; }
  .nb-site-header .brand-menu { position: static; }
  .nb-site-header .brand img { width: 36px; height: 36px; }
  .nb-site-header .brand .word { display: none; }
  .nb-site-header .brand-menu summary { min-width: 64px; padding-inline: 10px; }
  .nb-site-header .header-cta { min-height: 44px; font-size: .82rem; padding: 10px 12px; }
  .nb-site-header .menu-links { left: 0; right: 0; top: calc(100% + 8px); width: 100%; }
  .nb-portal-goals small { flex-basis: 100%; margin-left: 32px; text-align: left; }
  .nb-portal-counters { grid-template-columns: 1fr; }
  .nb-portal-counters > div { display: flex; align-items: center; gap: 12px; }
  .nb-portal-counters span { margin-top: 0; font-size: .85rem; }
  .nb-portal-counters strong { font-size: 1.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

.nb-level-book{padding:14px 0;border-top:1px solid #cddccd}.nb-level-book h3{margin:0 0 10px}.nb-level-book .btn{white-space:normal}

.nb-private-book-cover{width:126px;height:178px;object-fit:contain;object-position:left top;margin-bottom:12px;border:1px solid #cddccd;border-radius:3px;box-shadow:3px 5px 12px #042a5517}.nb-portal-panel fieldset{border:1px solid #cddccd;border-radius:10px;padding:16px}.nb-portal-panel legend{font-weight:700;padding:0 6px}

[data-student-courses]:empty{display:none}.nb-course-total{display:block;font-size:1.6rem;color:var(--navy,#042a55);margin:1rem 0}[data-course-payment-copy] p{line-height:1.65}[data-teacher-course-registrations] button,[data-student-courses] button{margin:.6rem .6rem 0 0}

/* Edition 12: one visual language, clear actions and room for the learner. */
:root { --nb-surface: #f4f7f5; --nb-border: #dce5e2; --nb-shadow: 0 8px 28px rgb(4 42 85 / 5%); }
.nb-edition-12 .nb-hero { background: #f3f7f2; padding-block: 64px; }
.nb-edition-12 .nb-hero-grid { grid-template-columns: 1.1fr 1fr; gap: 58px; }
.nb-edition-12 .nb-hero h1 { font-size: clamp(2.7rem, 4.5vw, 4.5rem); line-height: 1.08; letter-spacing: -.045em; max-width: 11ch; }
.nb-edition-12 .nb-hero-lead { font-size: 1.3rem; margin-bottom: 14px; }
.nb-edition-12 .nb-hero-description { max-width: 46ch; line-height: 1.75; }
.nb-edition-12 .nb-hero-actions { gap: 12px; margin-block: 28px 24px; }
.nb-hero-studio { position: relative; min-height: 432px; border-radius: 28px; background: #e6efe5; }
.nb-hero-bridge { position: absolute; inset: 22px 16px auto; opacity: .45; }
.nb-hero-bridge svg { width: 100%; height: auto; }
.nb-hero-bridge path { stroke: #238431; stroke-width: 2; fill: none; }
.nb-hero-portrait { position: absolute; width: 62%; height: 342px; right: 22px; top: 28px; overflow: hidden; border-radius: 120px 120px 14px 14px; box-shadow: 0 8px 26px rgb(4 42 85 / 9%); }
.nb-hero-portrait img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 44%; }
.nb-hero-name { display: flex; gap: 12px; align-items: center; position: absolute; bottom: 18px; right: 22px; width: 62%; padding: 16px; background: #fff; border-radius: 12px; box-shadow: var(--nb-shadow); }
.nb-hero-name strong { display: block; font-size: .96rem; color: var(--navy-900); }
.nb-hero-name span:not(.nb-live-dot) { display: block; margin-top: 3px; font-size: .73rem; color: var(--muted); }
.nb-live-dot { flex: 0 0 9px; height: 9px; border-radius: 50%; background: var(--green-600); }
.nb-hero-note { position: absolute; left: -22px; bottom: 108px; padding: 20px 24px; color: white; background: var(--navy-900); border-radius: 12px; box-shadow: var(--nb-shadow); }
.nb-hero-note > span { display: block; font-size: 1.35rem; font-weight: 700; }
.nb-hero-note b { color: #87dc79; margin-inline: 6px; }
.nb-hero-note p { margin: 10px 0 0; font-size: .83rem; line-height: 1.65; }
.nb-included-strip { padding: 24px 0; border-block: 1px solid var(--nb-border); background: white; }
.nb-included-strip > div { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.nb-included-strip span { display: grid; gap: 5px; font-size: .82rem; color: var(--muted); }
.nb-included-strip b { font-size: .92rem; color: var(--navy-900); }
.nb-how-it-works { padding-block: 64px; background: #f3f7f2; }
.nb-music-compact .nb-music-teaser-grid { display: block; max-width: 860px; }
.nb-music-compact .nb-music-lead { max-width: 60ch; }
.nb-music-compact .nb-account-help { margin-top: 18px; }
.nb-start-steps { padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; list-style: none; }
.nb-start-steps li { padding: 26px; background: white; border: 1px solid var(--nb-border); border-radius: 14px; display: flex; flex-direction: column; align-items: flex-start; }
.nb-start-steps li > span { display: grid; place-items: center; width: 40px; height: 40px; background: var(--green-100); color: var(--green-700); border-radius: 50%; font-size: .88rem; font-weight: 700; }
.nb-start-steps h3 { margin: 20px 0 10px; font-size: 1.15rem; }
.nb-start-steps p { font-size: .95rem; line-height: 1.75; color: var(--muted); }
.nb-start-steps a { margin-top: auto; padding-block: 10px; font-size: .9rem; font-weight: 600; }
.nb-workspace { background: var(--nb-surface); }
.nb-workspace-nav { border-color: var(--nb-border); padding-inline: 18px; overflow-y: auto; }
.nb-workspace-nav nav a, .nb-workspace-nav-bottom a, .nb-workspace-nav-bottom button { color: var(--navy-900); }
.nb-workspace-nav-bottom button { text-align: left; background: none; border: 0; font: inherit; font-size: .82rem; cursor: pointer; min-height: 44px; padding: 0; }
.nb-workspace-icon { border: 0; width: 23px; height: 23px; border-radius: 0; }
.nb-workspace-icon svg { width: 22px; height: 22px; }
.nb-workspace-bar { position: sticky; top: 0; z-index: 20; min-height: 74px; padding-block: 14px; border-color: var(--nb-border); }
.nb-workspace .nb-drive-owner, .nb-workspace [data-portal-admin-logout] { display: none; }
.nb-workspace .nb-drive-heading p, .nb-workspace .nb-hub-heading p, .nb-hub-card p { color: var(--muted); }
.nb-hub-card, .nb-hub-metrics > a, .nb-student-row, .nb-drive-file-card, .nb-portal-panel { border-color: var(--nb-border); box-shadow: none; }
.nb-hub-card h2, .nb-hub-metrics strong, .nb-hub-shortcuts > a, .nb-hub-setup strong, .nb-hub-setup .nb-drive-action { color: var(--navy-900); }
.nb-hub-metrics > a { padding: 22px; gap: 9px; }
.nb-hub-metrics strong { font-size: 2.2rem; }
.nb-hub-metrics span, .nb-hub-metrics small { color: var(--muted); }
.nb-hub-columns { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); }
.nb-hub-next-row { padding-block: 14px; border-top: 1px solid var(--nb-border); display: flex; flex-wrap: wrap; align-items: center; gap: 5px 14px; }
.nb-hub-next-row p { margin: 0; flex: 1 1 180px; }
.nb-hub-card .nb-dashboard-section-heading { gap: 12px; align-items: center; }
.nb-hub-card .nb-dashboard-section-heading h2 { margin-bottom: 0; }
.nb-hub-work-row { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; padding-block: 16px; border-bottom: 1px solid var(--nb-border); }
.nb-hub-work-row:last-child { border-bottom: 0; }
.nb-hub-work-row > div { flex: 1 1 200px; min-width: 0; }
.nb-hub-work-row strong { color: var(--navy-900); font-size: .92rem; overflow-wrap: anywhere; }
.nb-hub-work-row p { margin: 5px 0 0; font-size: .8rem; }
.nb-hub-setup { background: #eaf3e8; border-color: #d1e2cd; }
.nb-onboarding-steps { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 14px; }
.nb-onboarding-steps span { background: var(--green-50); color: var(--navy-900); border: 1px solid var(--nb-border); border-radius: 7px; padding: 8px 10px; font-size: .77rem; }
[data-student-invite-course] { margin-bottom: 22px; }
.nb-course-register-details { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--nb-border); }
.nb-course-register-details > summary { cursor: pointer; min-height: 44px; font-weight: 600; color: var(--navy-900); }
.nb-course-register-details .contact-form { margin-top: 16px; }
.nb-nav-icon { width: 22px; height: 22px; flex: 0 0 22px; order: -1; }
.nb-student-workspace .nb-portal-layout { display: block; margin: 0; }
.nb-student-workspace .nb-portal-main { padding-top: 28px; }
.nb-student-workspace .nb-portal-sidebar { border: 0; border-right: 1px solid var(--nb-border); border-radius: 0; padding: 26px 18px 20px; position: sticky; top: 0; }
.nb-student-workspace .nb-portal-course { padding: 20px 12px; margin-top: 24px; background: #f3f7f2; border: 1px solid var(--nb-border); border-radius: 12px; gap: 8px; }
.nb-student-workspace .nb-portal-course strong { font-size: 1.12rem; }
.nb-student-workspace .nb-portal-sidebar nav { display: grid; gap: 5px; margin-top: 14px; }
.nb-student-workspace .nb-portal-sidebar nav button { display: flex; align-items: center; gap: 11px; font-size: .88rem; font-weight: 550; min-width: 0; }
.nb-student-workspace .nb-portal-sidebar nav button > span { margin-left: auto; }
.nb-student-workspace .nb-portal-sidebar > p { margin-top: auto; padding-top: 24px; }
.nb-student-workspace .nb-portal-heading h1 { font-size: clamp(1.9rem, 3vw, 2.6rem); }
.nb-student-workspace .nb-portal-heading p { margin-bottom: 0; }
.nb-student-workspace [data-personal-student-number] { display: none; }
.nb-student-workspace .nb-portal-notices { margin-bottom: 18px; border-color: var(--nb-border); background: white; }
.nb-portal-account-menu { position: relative; font-size: .86rem; }
.nb-portal-account-menu > summary { display: flex; align-items: center; cursor: pointer; gap: 9px; min-height: 44px; list-style: none; color: var(--navy-900); }
.nb-portal-account-menu > summary::-webkit-details-marker { display: none; }
.nb-portal-account-menu .nb-portal-top-actions { position: absolute; right: 0; top: calc(100% + 9px); width: 220px; padding: 10px; display: grid; gap: 3px; background: white; border: 1px solid var(--nb-border); border-radius: 12px; box-shadow: var(--nb-shadow); }
.nb-portal-account-menu .nb-portal-top-actions > * { justify-content: flex-start; text-align: left; }
.nb-learning-home-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 18px; margin-block: 22px 30px; }
.nb-learning-next { background: var(--navy-900); border-radius: 14px; padding: 24px; color: white; }
.nb-learning-next h3 { color: white; font-size: 1.4rem; margin: 16px 0 10px; overflow-wrap: anywhere; }
.nb-learning-next p { color: #d8e4ef; font-size: .93rem; margin-bottom: 22px; }
.nb-learning-next .nb-drive-chip { background: #ffffff16; border-color: transparent; color: #cce7c8; }
.nb-learning-next .btn { background: #c8edbc; border-color: #c8edbc; color: var(--navy-900); }
.nb-learning-next .btn:hover { background: #b5e6a6; border-color: #b5e6a6; }
.nb-overview-lesson { margin: 0; padding: 24px; background: #f3f7f2; border: 1px solid var(--nb-border); border-radius: 14px; }
.nb-overview-lesson h3 { margin: 0 0 15px; }
.nb-overview-lesson p { font-size: .93rem; color: var(--muted); margin-block: 14px; }
.nb-overview-lesson .nb-drive-action { padding-inline: 0; text-align: left; }
.nb-home-library { margin: 0 0 26px; padding: 0; }
.nb-home-library .nb-dashboard-section-heading { align-items: center; margin-bottom: 14px; }
.nb-home-library h3 { margin: 0; }
.nb-home-books { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.nb-home-book { display: flex; align-items: center; gap: 18px; padding: 18px; min-width: 0; border: 1px solid var(--nb-border); border-radius: 12px; background: #fbfcfa; }
.nb-home-book > img { width: 82px; height: 116px; object-fit: contain; flex-shrink: 0; box-shadow: 3px 4px 8px #042a5514; }
.nb-home-book > div { min-width: 0; }
.nb-home-book h4 { font-size: .95rem; margin: 9px 0 5px; color: var(--navy-900); overflow-wrap: anywhere; }
.nb-home-book p { font-size: .77rem; color: var(--muted); margin: 0; }
.nb-home-book .nb-drive-action { padding: 8px 0; font-size: .85rem; }
.nb-book-empty { grid-column: 1 / -1; padding: 20px; border: 1px dashed var(--nb-border); border-radius: 12px; color: var(--muted); font-size: .9rem; }
.nb-portal-quick-actions { margin-block: 22px; }
.nb-portal-quick-actions > button { min-height: 105px; padding: 18px; background: white; border-color: var(--nb-border); }
.nb-portal-quick-actions .nb-quick-symbol { color: var(--green-700); }
.nb-portal-quick-actions > button > span:last-child { font-size: .79rem; }
.nb-student-course-details { border-top: 1px solid var(--nb-border); padding-top: 18px; margin-top: 24px; }
.nb-student-course-details > summary, .nb-help-summary > summary { cursor: pointer; min-height: 44px; color: var(--navy-900); font-weight: 600; font-size: .9rem; }
.nb-help-summary { margin-top: 14px; padding: 18px 0 0; border-top: 1px solid var(--nb-border); background: none; }
.nb-help-summary p { font-size: .87rem; }
.nb-file-view-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.nb-file-view-row p { margin: 0; font-size: .82rem; }
.nb-portal-file-grid.is-list { display: grid; grid-template-columns: 1fr; gap: 10px; }
.nb-portal-file-grid.is-list > article { display: grid; grid-template-columns: 86px minmax(0, 1fr) auto; gap: 8px 18px; align-items: center; }
.nb-portal-file-grid.is-list .nb-private-book-cover { width: 55px; height: 78px; grid-row: 1 / 4; grid-column: 1; margin: 0; }
.nb-portal-file-grid.is-list .nb-drive-chip { grid-column: 2; justify-self: start; }
.nb-portal-file-grid.is-list h3, .nb-portal-file-grid.is-list p { grid-column: 2; margin: 0; }
.nb-portal-file-grid.is-list .nb-drive-inline-actions { grid-column: 3; grid-row: 1 / 4; }

@media (max-width: 1080px) {
  .nb-edition-12 .nb-hero-grid { gap: 32px; }
  .nb-hero-studio { min-height: 390px; }
  .nb-hero-portrait { height: 298px; }
  .nb-hero-name { padding: 13px; }
  .nb-home-books { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .nb-edition-12 .nb-hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); }
  .nb-hero-note { padding: 16px; left: -8px; }
  .nb-learning-home-grid { grid-template-columns: 1fr; }
  .nb-hub-columns { grid-template-columns: 1fr; }
  .nb-portal-file-grid.is-list > article { grid-template-columns: 62px minmax(0, 1fr); }
  .nb-portal-file-grid.is-list .nb-drive-inline-actions { grid-column: 2; grid-row: auto; }
}
@media (max-width: 760px) {
  .nb-workspace-bar { padding-inline: 16px; min-height: 64px; }
  .nb-edition-12 .nb-hero { padding-block: 38px; }
  .nb-edition-12 .nb-hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .nb-edition-12 .nb-hero h1 { max-width: 12ch; font-size: clamp(2.55rem, 9vw, 3.8rem); }
  .nb-hero-studio { min-height: 320px; width: 100%; max-width: 520px; justify-self: center; }
  .nb-hero-portrait { height: 234px; width: 48%; right: 24px; top: 18px; border-radius: 70px 70px 10px 10px; }
  .nb-hero-name { bottom: 14px; width: calc(100% - 48px); right: 24px; }
  .nb-hero-note { left: 18px; bottom: 98px; max-width: 48%; }
  .nb-included-strip > div { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; }
  .nb-start-steps { grid-template-columns: 1fr; gap: 12px; }
  .nb-start-steps li { padding: 22px; }
  .nb-how-it-works { padding-block: 42px; }
  .nb-student-workspace .nb-portal-sidebar { position: static; padding: 14px 16px 10px; border-right: 0; }
  .nb-student-workspace .nb-portal-sidebar .nb-workspace-brand { display: none; }
  .nb-student-workspace .nb-portal-course { margin: 0; padding: 12px; gap: 5px; grid-template-columns: 1fr 1fr; }
  .nb-student-workspace .nb-portal-course > .eyebrow { display: none; }
  .nb-student-workspace .nb-portal-course strong { grid-row: 1; }
  .nb-student-workspace .nb-portal-course > span { grid-column: 1; grid-row: 2; }
  .nb-student-workspace .nb-portal-course progress { grid-column: 2; grid-row: 1; align-self: center; }
  .nb-student-workspace .nb-portal-course small { grid-column: 2; grid-row: 2; text-align: right; }
  .nb-student-workspace .nb-portal-sidebar nav { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 10px; gap: 4px; overflow: visible; }
  .nb-student-workspace .nb-portal-sidebar nav button { flex-direction: column; align-items: center; justify-content: center; position: relative; gap: 5px; font-size: .76rem; text-align: center; padding: 10px 2px; min-height: 65px; }
  .nb-student-workspace .nb-portal-sidebar nav button > span:not(:empty) { position: absolute; right: 4px; top: 1px; font-size: .68rem; padding-inline: 4px; background: var(--green-100); border-radius: 5px; }
  .nb-student-workspace .nb-portal-sidebar nav button[aria-pressed="true"] { box-shadow: inset 0 -3px 0 var(--green-600); }
  .nb-student-workspace .nb-portal-sidebar > p { display: none; }
  .nb-student-workspace .nb-portal-heading { margin-bottom: 16px; }
  .nb-student-workspace .nb-portal-heading .eyebrow { display: none; }
  .nb-student-workspace .nb-portal-panel { padding: 20px 16px; }
  .nb-learning-next, .nb-overview-lesson { padding: 20px; }
  .nb-learning-home-grid { margin-block: 18px 24px; gap: 12px; }
  .nb-home-library .nb-dashboard-section-heading { gap: 4px; }
  .nb-home-book { padding: 16px; }
  .nb-portal-quick-actions { grid-template-columns: 1fr; gap: 8px; }
  .nb-portal-quick-actions > button { min-height: 84px; }
  .nb-hub-work-row > div { flex-basis: 140px; }
  .nb-workspace-nav-bottom { display: flex; flex-wrap: wrap; padding: 8px 0 0; gap: 12px; }
  .nb-workspace-nav-bottom small, .nb-workspace-nav-bottom > a:first-child { display: none; }
}
@media (max-width: 390px) {
  .nb-hero-note { padding: 12px; left: 12px; }
  .nb-hero-note > span { font-size: 1.1rem; }
  .nb-hero-note p { font-size: .75rem; }
  .nb-student-workspace .nb-portal-sidebar nav button { font-size: .7rem; }
  .nb-student-workspace .nb-portal-panel { padding-inline: 12px; }
  .nb-home-book { gap: 12px; padding: 12px; }
  .nb-home-book > img { width: 68px; height: 97px; }
  .nb-home-library .nb-dashboard-section-heading { flex-wrap: wrap; }
}