.nn-mcq-landing {
  width: min(960px, calc(100% - 40px));
  margin: 0 auto;
  padding: 30px 0 72px;
  color: #2c3e50;
  box-sizing: border-box;
}
.nn-mcq-landing,
.nn-mcq-landing * { box-sizing: border-box; }
.nn-mcq-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  align-items: center;
  gap: 28px;
  overflow: hidden;
  padding: 22px 28px;
  border: 1px solid #314b5b;
  border-radius: 20px;
  background: linear-gradient(120deg, #243847, #2e4b57);
  color: #fff;
  box-shadow: 0 12px 30px rgba(35,57,71,.1);
}
.nn-mcq-eyebrow { display: block; color: #83d8c4; font-size: 10px; font-weight: 800; letter-spacing: .13em; line-height: 1.6; }
.nn-mcq-landing .nn-mcq-intro h1 { margin: 9px 0 10px; color: #fff; font-size: clamp(30px, 3.6vw, 42px); line-height: 1.12; letter-spacing: -.04em; }
.nn-mcq-intro h1 span { color: #53c2a7; }
.nn-mcq-landing p { margin: 0; color: #687b8b; font-size: 14px; line-height: 1.75; }
.nn-mcq-intro-copy > p { max-width: 610px; color: rgba(255,255,255,.78); }
.nn-mcq-quick-access { min-width: 0; padding: 14px; border: 1px solid rgba(214,231,224,.95); border-radius: 15px; background: linear-gradient(145deg, #fff, #f6fbf9); box-shadow: 0 10px 24px rgba(12,38,42,.12); }
.nn-mcq-quick-access-kicker { display: block; margin-bottom: 5px; color: #0e8f77; font-size: 9px; font-weight: 800; letter-spacing: .11em; }
.nn-mcq-landing .nn-mcq-quick-access h2 { margin: 0 0 4px; color: #2c3e50; font-size: 17px; line-height: 1.3; }
.nn-mcq-landing .nn-mcq-quick-access p { margin-bottom: 8px; color: #6a7d8c; font-size: 11px; line-height: 1.45; }
.nn-mcq-quick-access a { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 38px; margin-top: 6px; padding: 8px 10px; border: 1px solid #dce9e4; border-radius: 9px; background: #fff; color: #176b5d; font-size: 11px; font-weight: 750; text-decoration: none; transition: border-color .18s ease, background .18s ease, transform .18s ease; }
.nn-mcq-quick-access a:hover { transform: translateY(-1px); border-color: #a8d7ca; background: #f7fcfa; text-decoration: none; }
.nn-mcq-quick-access a span { flex: 0 0 auto; color: #0e8f77; font-size: 14px; }
.nn-mcq-landing .nn-mcq-intro-image,
.nn-mcq-landing .nn-mcq-primary,
.nn-mcq-landing .nn-mcq-highlights { display: none !important; }

#mock-sets { display: block; width: min(960px, calc(100vw - 40px)) !important; max-width: 960px !important; margin: 26px auto 0 !important; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
#nnMcqCatalog { width: 100%; max-width: 100%; margin-left: auto; margin-right: auto; }
.nn-mcq-catalog-section { scroll-margin-top: 100px; margin-top: 18px; padding: 23px; border: 1px solid #dfe9e5; border-radius: 16px; background: linear-gradient(145deg, #fff, #fbfdfc); }
.nn-mcq-catalog-section + .nn-mcq-catalog-section { margin-top: 18px; }
.nn-mcq-catalog-heading,
.nn-mcq-grade-heading,
.nn-mcq-group-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.nn-mcq-catalog-heading { margin-bottom: 22px; }
.nn-mcq-catalog-kicker { color: #0e7a65; font-size: 9px; font-weight: 800; letter-spacing: .11em; }
.nn-mcq-catalog-heading h2 { margin: 5px 0 4px; color: #2c3e50; font-size: 25px; line-height: 1.25; letter-spacing: -.025em; }
.nn-mcq-catalog-heading p { color: #6a7d8c; font-size: 13px; }
.nn-mcq-catalog-count,
.nn-mcq-grade-heading > span,
.nn-mcq-group-heading > span { flex-shrink: 0; color: #657986; font-size: 11px; }
.nn-mcq-catalog-count { padding: 7px 10px; border: 1px solid #dce9e4; border-radius: 9px; background: #fff; color: #176b5d; font-weight: 700; }
.nn-mcq-collection-grid { display: grid; grid-template-columns: minmax(0, 1fr); align-items: start; gap: 13px; }
.nn-mcq-grade-collection-grid { grid-template-columns: minmax(0, 1fr); }
.nn-mcq-collection { min-width: 0; overflow: hidden; border: 1px solid #e0e8e5; border-radius: 14px; background: #fff; box-shadow: 0 3px 12px rgba(44,62,80,.025); transition: border-color .18s ease, box-shadow .18s ease; }
.nn-mcq-collection:hover { border-color: #b5d9ce; box-shadow: 0 8px 20px rgba(44,62,80,.055); }
.nn-mcq-collection[open] { border-color: #9dcfbe; }
.nn-mcq-collection-toggle { display: grid; grid-template-columns: 48px minmax(0, 1fr) 18px; align-items: center; gap: 13px; min-height: 96px; padding: 17px; background: #fff; cursor: pointer; list-style: none; }
.nn-mcq-collection-toggle::-webkit-details-marker { display: none; }
.nn-mcq-collection-toggle:hover,
.nn-mcq-collection[open] > .nn-mcq-collection-toggle { background: #f4faf8; }
.nn-mcq-collection[open] > .nn-mcq-collection-toggle { box-shadow: inset 3px 0 #0e9f82; }
.nn-mcq-collection-marker { display: flex; width: 48px; height: 48px; align-items: center; justify-content: center; border-radius: 13px; background: #edf8f5; color: #0e7a65; }
.nn-mcq-collection-marker svg { display: block; width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.nn-mcq-collection-copy { display: grid; min-width: 0; gap: 3px; }
.nn-mcq-collection-copy strong { color: #2c3e50; font-size: 15px; line-height: 1.35; }
.nn-mcq-collection-copy small { color: #6b7e8d; font-size: 11px; line-height: 1.45; }
.nn-mcq-collection-chevron { width: 9px; height: 9px; border-right: 2px solid #8395a0; border-bottom: 2px solid #8395a0; transform: rotate(45deg) translateY(-2px); transition: transform .18s ease; }
.nn-mcq-collection[open] .nn-mcq-collection-chevron { transform: rotate(225deg) translate(-2px, -1px); }
.nn-mcq-collection-toggle:focus-visible { outline: 3px solid #16a085; outline-offset: -4px; }
.nn-mcq-collection-panel { padding: 18px; border-top: 1px solid #e0eee8; background: #f8fbfa; }
.nn-mcq-collection-panel > .nn-mcq-library-grid { margin: 0; }
.nn-mcq-entrance-collection-grid .nn-mcq-collection-panel .nn-mcq-library-grid,
.nn-mcq-grade-collection-grid .nn-mcq-collection-panel .nn-mcq-library-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.nn-mcq-group-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.nn-mcq-group-heading h3,
.nn-mcq-group-heading h4 { margin: 0; color: #2c3e50; font-size: 15px; font-weight: 800; }
.nn-mcq-subject-group { padding: 0; }
.nn-mcq-subject-group + .nn-mcq-subject-group { margin-top: 18px; padding-top: 18px; border-top: 1px solid #e0e9e5; }
.nn-mcq-library-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.nn-mcq-library-card { display: flex; min-width: 0; min-height: 126px; flex-direction: column; align-items: flex-start; padding: 14px; border: 1px solid #e0e9e5; border-radius: 14px; background: #fff; color: inherit; text-decoration: none; box-shadow: 0 3px 12px rgba(44,62,80,.025); transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease; }
.nn-mcq-landing .nn-mcq-library-card,
.nn-mcq-landing .nn-mcq-library-card:hover,
.nn-mcq-landing .nn-mcq-library-card:focus-visible,
.nn-mcq-landing .nn-mcq-catalog a:hover,
.nn-mcq-landing .nn-mcq-catalog a:focus-visible { color: inherit; text-decoration: none !important; }
.nn-mcq-landing .nn-mcq-library-card h4,
.nn-mcq-landing .nn-mcq-library-card p,
.nn-mcq-landing .nn-mcq-library-card-action { text-decoration: none !important; }
.nn-mcq-library-card:hover { transform: translateY(-2px); border-color: #a8d7ca; box-shadow: 0 10px 22px rgba(44,62,80,.07); }
.nn-mcq-library-card:focus-visible { outline: 3px solid #16a085; outline-offset: 3px; }
.nn-mcq-library-card.is-locked { background: linear-gradient(145deg, #fff, #f7fbfa); }
.nn-mcq-library-card-top { display: flex; width: 100%; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 7px; }
.nn-mcq-access-badge,
.nn-mcq-time-badge { display: inline-flex; align-items: center; min-height: 23px; padding: 4px 8px; border: 1px solid #dce9e4; border-radius: 7px; background: #f2faf7; color: #176b5d; font-size: 9px; font-weight: 800; line-height: 1.2; }
.nn-mcq-access-badge.is-premium { border-color: #cbe9df; background: #eaf7f2; color: #08765f; }
.nn-mcq-time-badge { background: #f6f8f7; color: #627482; }
.nn-mcq-library-card h4 { margin: 10px 0 5px; color: #2c3e50; font-size: 15px; font-weight: 800; line-height: 1.4; overflow-wrap: anywhere; }
.nn-mcq-library-card p { margin: 0; color: #6a7d8c; font-size: 12px; line-height: 1.55; }
.nn-mcq-library-card-action { margin-top: auto; padding-top: 8px; color: #0e7a65; font-size: 11px; font-weight: 800; }
.nn-mcq-grade-group { overflow: hidden; margin-top: 18px; border: 1px solid #dfe9e5; border-radius: 17px; background: #fbfdfc; }
.nn-mcq-grade-heading { min-height: 68px; padding: 17px 20px; border-bottom: 1px solid #e0e9e5; background: linear-gradient(120deg, #fff, #f6fbf9); }
.nn-mcq-grade-heading h3 { margin: 0; color: #2c3e50; font-size: 18px; font-weight: 800; }
.nn-mcq-grade-heading > span { padding: 6px 9px; border: 1px solid #dce9e4; border-radius: 8px; background: #fff; color: #176b5d; font-weight: 700; }
.nn-mcq-subject-group { padding: 19px 20px 21px; }
.nn-mcq-subject-group + .nn-mcq-subject-group { border-top: 1px solid #e4ece8; }
.nn-mcq-catalog-empty { padding: 22px; border: 1px dashed #cddbd5; border-radius: 12px; color: #687c88; font-size: 13px; text-align: center; }

#nn-mcq-method,
#nn-mcq-faq { width: min(960px, calc(100vw - 40px)) !important; max-width: 960px !important; margin-left: auto !important; margin-right: auto !important; }
.nn-mcq-method { padding: 38px 0 44px; }
.nn-mcq-landing-heading { max-width: 620px; margin-bottom: 20px; text-align: left; }
.nn-mcq-landing-heading h2 { margin: 8px 0; color: #2c3e50; font-size: 27px; line-height: 1.2; letter-spacing: -.03em; }
.nn-mcq-landing-heading p { font-size: 13px; }
.nn-mcq-method-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.nn-mcq-method-grid article { padding: 20px; border: 1px solid #e0e9e5; border-radius: 15px; background: #fff; box-shadow: 0 3px 12px rgba(44,62,80,.025); }
.nn-mcq-method-grid article > span { color: #0e7a65; font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.nn-mcq-method-grid h3 { margin: 12px 0 6px; color: #2c3e50; font-size: 15px; line-height: 1.35; }
.nn-mcq-method-grid p { font-size: 12px; }
.nn-mcq-faq { display: grid; grid-template-columns: minmax(220px, .72fr) minmax(0, 1.28fr); align-items: start; gap: 36px; padding-top: 34px; border-top: 1px solid #e0e9e5; }
.nn-mcq-faq .nn-mcq-landing-heading { margin: 0; }
.nn-mcq-faq-list details { overflow: hidden; margin: 0 0 9px; border: 1px solid #e0e9e5; border-radius: 12px; background: #fff; }
.nn-mcq-faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 15px 17px; color: #2c3e50; font-size: 13px; font-weight: 700; cursor: pointer; list-style: none; }
.nn-mcq-faq-list summary::-webkit-details-marker { display: none; }
.nn-mcq-faq-list summary::after { content: '+'; color: #0e7a65; font-size: 18px; font-weight: 500; }
.nn-mcq-faq-list details[open] summary::after { content: '−'; }
.nn-mcq-faq-list details p { padding: 0 17px 16px; font-size: 12px; }
.nn-mcq-faq-list summary:focus-visible { outline: 2px solid #16a085; outline-offset: -3px; }
.nn-mcq-faq .nn-mcq-support { margin-top: 22px !important; padding: 18px; border: 1px solid #d5e9e2; border-radius: 13px; background: linear-gradient(145deg, #f2faf7, #fff); box-shadow: 0 5px 16px rgba(44,62,80,.035); }
.nn-mcq-support > span { color: #0e8f77; font-size: 9px; font-weight: 800; letter-spacing: .1em; }
.nn-mcq-landing .nn-mcq-support h3 { margin: 6px 0; color: #2c3e50 !important; font-size: 17px; line-height: 1.3; }
.nn-mcq-landing .nn-mcq-support p { margin-bottom: 13px; color: #657986 !important; font-size: 12px; line-height: 1.6; }
.nn-mcq-support > a { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 0 13px; border: 1px solid #0e7a65; border-radius: 8px; background: #0e7a65; color: #fff !important; font-size: 11px; font-weight: 800; text-decoration: none !important; transition: background .18s ease, transform .18s ease; }
.nn-mcq-support > a:hover { transform: translateY(-1px); background: #096b58; text-decoration: none !important; }

@media (max-width: 800px) {
  .nn-mcq-intro { grid-template-columns: minmax(0, 1fr) 250px; gap: 22px; padding: 20px 24px; }
  .nn-mcq-faq { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .nn-mcq-library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nn-mcq-entrance-collection-grid .nn-mcq-collection-panel .nn-mcq-library-grid,
  .nn-mcq-grade-collection-grid .nn-mcq-collection-panel .nn-mcq-library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .nn-mcq-landing { width: min(calc(100% - 28px), 520px); padding: 20px 0 46px; }
  .nn-mcq-intro { grid-template-columns: minmax(0, 1fr); gap: 20px; padding: 25px 21px; border-radius: 18px; }
  .nn-mcq-landing .nn-mcq-intro h1 { font-size: clamp(31px, 9vw, 40px); }
  .nn-mcq-quick-access { padding: 16px; }
  #mock-sets { width: calc(100vw - 28px) !important; margin-top: 18px !important; padding: 0; }
  #nn-mcq-method,
  #nn-mcq-faq { width: calc(100vw - 28px) !important; }
  .nn-mcq-catalog-section { margin-top: 14px; padding: 16px; border-radius: 13px; }
  .nn-mcq-catalog-section + .nn-mcq-catalog-section { margin-top: 14px; }
  .nn-mcq-catalog-heading { align-items: flex-start; }
  .nn-mcq-catalog-heading h2 { font-size: 22px; }
  .nn-mcq-collection-grid,
  .nn-mcq-grade-collection-grid { grid-template-columns: minmax(0, 1fr); }
  .nn-mcq-collection-toggle { min-height: 82px; padding: 15px; }
  .nn-mcq-collection-panel { padding: 15px; }
  .nn-mcq-library-grid,
  .nn-mcq-method-grid { grid-template-columns: minmax(0, 1fr); }
  .nn-mcq-entrance-collection-grid .nn-mcq-collection-panel .nn-mcq-library-grid,
  .nn-mcq-grade-collection-grid .nn-mcq-collection-panel .nn-mcq-library-grid { grid-template-columns: minmax(0, 1fr); }
  .nn-mcq-grade-collection-grid .nn-mcq-collection-panel .nn-mcq-library-grid { grid-template-columns: minmax(0, 1fr); }
  .nn-mcq-library-card { min-height: 126px; }
  .nn-mcq-grade-heading { padding: 15px 16px; }
  .nn-mcq-grade-heading h3 { font-size: 16px; }
  .nn-mcq-subject-group { padding: 16px; }
  .nn-mcq-method { padding: 32px 0; }
  .nn-mcq-method-grid article { padding: 17px; }
  .nn-mcq-landing-heading h2 { font-size: 23px; }
  .nn-mcq-faq .nn-mcq-support { margin-top: 18px !important; padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .nn-mcq-landing *, .nn-mcq-landing *::before, .nn-mcq-landing *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

/* Shared catalogue width and the calmer course-page presentation. */
.nn-mcq-hub-content > .nn-mcq-landing,
.nn-mcq-hub-content > #mock-sets,
.nn-mcq-hub-content > #nn-mcq-method,
.nn-mcq-hub-content > #nn-mcq-faq {
  width: min(1120px, calc(100% - 32px)) !important;
  max-width: 1120px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

.nn-mcq-landing {
  padding: 30px 0 0;
}

.nn-mcq-intro {
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 38px;
  min-height: 230px;
  padding: 34px 40px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(120deg, #263d4b 0%, #2f5660 100%);
  box-shadow: 0 12px 28px rgba(44, 62, 80, .10);
}

.nn-mcq-landing .nn-mcq-intro h1 {
  max-width: 640px;
  margin: 12px 0 14px;
  font-size: clamp(34px, 4vw, 48px);
  letter-spacing: -.045em;
}

.nn-mcq-intro-copy > p {
  max-width: 620px;
  font-size: 15px;
  line-height: 1.75;
}

.nn-mcq-quick-access {
  padding: 20px;
  border: 0;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(12, 38, 42, .14);
}

.nn-mcq-quick-access a {
  min-height: 44px;
  margin-top: 8px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 12px;
}

#mock-sets,
#nn-mcq-method,
#nn-mcq-faq {
  width: min(1120px, calc(100% - 32px)) !important;
  max-width: 1120px !important;
}

#mock-sets {
  margin-top: 30px !important;
}

.nn-mcq-catalog-section {
  margin-top: 20px;
  padding: 28px;
  border: 1px solid #e2e8e5;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 5px 18px rgba(44, 62, 80, .04);
}

.nn-mcq-catalog-heading {
  margin-bottom: 24px;
}

.nn-mcq-catalog-heading h2 {
  font-size: 29px;
}

.nn-mcq-collection-grid {
  gap: 16px;
}

.nn-mcq-collection {
  border-color: #e2e8e5;
  border-radius: 12px;
  box-shadow: none;
}

.nn-mcq-collection-toggle {
  min-height: 88px;
  padding: 18px 20px;
}

.nn-mcq-collection-panel {
  padding: 20px;
}

.nn-mcq-library-grid {
  gap: 14px;
}

.nn-mcq-library-card {
  min-height: 142px;
  padding: 16px;
  border-radius: 11px;
  box-shadow: 0 3px 12px rgba(44, 62, 80, .035);
}

.nn-mcq-grade-group {
  margin-top: 20px;
  border-radius: 13px;
}

.nn-mcq-method {
  padding: 54px 0 58px;
}

.nn-mcq-method-grid {
  gap: 16px;
}

.nn-mcq-method-grid article {
  min-height: 160px;
  padding: 22px;
  border-radius: 12px;
}

@media (max-width: 900px) {
  .nn-mcq-intro {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 24px;
    padding: 28px 30px;
  }
}

@media (max-width: 620px) {
  .nn-mcq-hub-content > .nn-mcq-landing,
  .nn-mcq-hub-content > #mock-sets,
  .nn-mcq-hub-content > #nn-mcq-method,
  .nn-mcq-hub-content > #nn-mcq-faq,
  #mock-sets,
  #nn-mcq-method,
  #nn-mcq-faq {
    width: calc(100% - 28px) !important;
    max-width: 520px !important;
  }

  .nn-mcq-landing {
    padding: 20px 0 48px;
  }

  .nn-mcq-intro {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    padding: 26px 22px;
  }

  #mock-sets {
    margin-top: 18px !important;
  }

  .nn-mcq-catalog-section {
    padding: 17px;
  }

  .nn-mcq-catalog-heading h2 {
    font-size: 23px;
  }

  .nn-mcq-collection-toggle,
  .nn-mcq-collection-panel {
    padding: 15px;
  }
}