body[data-app-route="gkentei"] { --accent: #c84d24; }

body.portfolio-app[data-app-route="gkentei"] :where(a, button, input, select, textarea):focus-visible {
  outline: 2px solid var(--accent, #c84d24) !important;
  outline-offset: 3px;
}

.gk-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  background: var(--portfolio-bg);
  color: var(--portfolio-ink);
}

body[data-app-route="gkentei"] [hidden] { display: none; }

body[data-app-route="gkentei"] > .skip-link {
  position: fixed;
  top: -52px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 0 0 8px 8px;
  background: var(--portfolio-orange);
  color: var(--portfolio-accent-ink);
}

body[data-app-route="gkentei"] > .skip-link:focus { top: 0; }

.gk-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.gk-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--portfolio-border);
  background: var(--portfolio-bg);
  z-index: 20;
}

.gk-sidebar-head {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-inline: var(--space-lg);
}

.gk-brand {
  min-height: 34px;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  color: var(--portfolio-ink);
  font-size: 21px;
  font-weight: 750;
  letter-spacing: -.04em;
  text-decoration: none;
}

.gk-brand-mark {
  color: var(--portfolio-accent);
  font: 700 17px/1 var(--font-mono);
  letter-spacing: -.04em;
}

.gk-brand-dot { color: var(--portfolio-accent, #4657d8); }
.gk-sidebar-actions { display: flex; gap: 8px; }

.gk-icon-button {
  width: 38px;
  height: 38px;
  min-height: 38px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--portfolio-border);
  border-radius: 10px;
  background: var(--portfolio-bg);
  color: var(--portfolio-body);
  cursor: pointer;
}

.gk-icon-button:hover {
  border-color: var(--portfolio-orange);
  color: var(--portfolio-orange);
}

.gk-mobile-menu { display: none; }
.gk-sidebar-body { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.gk-primary-nav { display: grid; gap: 2px; padding: 10px 8px; }

.gk-nav-item {
  position: relative;
  min-height: 49px;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--portfolio-muted);
  text-align: left;
  cursor: pointer;
}

.gk-nav-item::before {
  content: "";
  position: absolute;
  left: -9px;
  width: 3px;
  height: 36px;
  background: transparent;
}

.gk-nav-item:hover {
  background: var(--portfolio-surface-2);
  color: var(--portfolio-ink);
}

.gk-nav-item.is-active {
  border-color: var(--portfolio-orange);
  background: var(--portfolio-orange-soft);
  color: var(--portfolio-orange);
}

.gk-nav-item.is-active::before { background: var(--portfolio-orange); }
.gk-nav-item small { font: 500 12px/1 var(--font-mono); }

.gk-sidebar-foot {
  display: grid;
  gap: 8px;
  margin-top: auto;
  padding: 0 28px 26px;
  color: var(--portfolio-muted);
  font-size: 11px;
}

.gk-sidebar-foot::before {
  content: "";
  height: 1px;
  margin-bottom: 14px;
  background: var(--portfolio-border);
}

.gk-data-note { display: grid; gap: 5px; }
.gk-data-note strong { color: var(--portfolio-ink); font-size: 12px; }
.gk-sidebar-foot p { margin: 8px 0; color: var(--portfolio-muted); font-size: 11px; line-height: 1.55; }

.gk-back-apps {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--portfolio-border);
  border-radius: 8px;
  color: var(--portfolio-muted);
  text-decoration: none;
}

.gk-back-apps i { transform: rotate(180deg); }
.gk-back-apps:hover { border-color: var(--portfolio-orange); color: var(--portfolio-orange); }

.gk-main {
  width: 100%;
  min-width: 0;
  padding: 46px clamp(42px, 4.3vw, 68px) 70px;
}

.gk-main:focus { outline: none; }

.gk-loading,
.gk-load-error {
  min-height: 60vh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: var(--space-sm);
  color: var(--portfolio-muted);
  text-align: center;
}

.gk-load-error strong { color: var(--portfolio-danger); font-size: var(--step-2); }
.gk-load-error p { max-width: 520px; margin: 0; }

.gk-view-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  align-items: start;
  gap: clamp(40px, 7vw, 110px);
  padding-bottom: 33px;
  border-bottom: 1px solid var(--portfolio-border);
}

.gk-view-header.is-simple { grid-template-columns: 1fr; }
.gk-eyebrow {
  margin: 1px 0 17px;
  color: var(--portfolio-orange);
  font: 700 12px/1.4 var(--font-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.gk-view-title {
  margin: 0;
  color: var(--portfolio-ink);
  font-size: clamp(44px, 4.15vw, 60px);
  line-height: .98;
  letter-spacing: -.055em;
}

.gk-view-lead {
  max-width: 690px;
  margin: 21px 0 0;
  color: var(--portfolio-body);
  font-size: 16px;
  line-height: 1.65;
}

.gk-progress-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 8px 14px;
  padding-top: 6px;
}

.gk-progress-panel > span { color: var(--portfolio-muted); font-size: 12px; }
.gk-progress-panel > strong {
  grid-row: 1 / 3;
  grid-column: 2;
  color: var(--portfolio-orange);
  font: 700 36px/1 var(--font-mono);
}

.gk-progress-panel small { color: var(--portfolio-muted); font-size: 11px; }
.gk-progress-panel progress { grid-column: 1 / 3; }

.gk-progress,
.gk-stat-progress,
.gk-quiz-progress {
  width: 100%;
  height: 7px;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  appearance: none;
  background: var(--portfolio-surface-2);
}

.gk-progress::-webkit-progress-bar,
.gk-stat-progress::-webkit-progress-bar,
.gk-quiz-progress::-webkit-progress-bar { background: var(--portfolio-surface-2); }
.gk-progress::-webkit-progress-value,
.gk-stat-progress::-webkit-progress-value,
.gk-quiz-progress::-webkit-progress-value { background: var(--portfolio-orange); }
.gk-progress::-moz-progress-bar,
.gk-stat-progress::-moz-progress-bar,
.gk-quiz-progress::-moz-progress-bar { background: var(--portfolio-orange); }

.gk-primary-action,
.gk-secondary-action {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 650;
  cursor: pointer;
}

body[data-app-route="gkentei"] .gk-primary-action {
  border: 1px solid var(--portfolio-orange);
  background: var(--portfolio-orange);
  color: var(--portfolio-accent-ink);
}

body[data-app-route="gkentei"] .gk-primary-action:hover { filter: brightness(1.06); }
body[data-app-route="gkentei"] .gk-primary-action:disabled { opacity: .5; cursor: not-allowed; }

body[data-app-route="gkentei"] .gk-secondary-action {
  border: 1px solid var(--portfolio-border-strong);
  background: transparent;
  color: var(--portfolio-body);
}

body[data-app-route="gkentei"] .gk-secondary-action:hover {
  border-color: var(--portfolio-orange);
  color: var(--portfolio-orange);
}

.gk-progress-panel .gk-primary-action { grid-column: 1 / 3; margin-top: 12px; }

.gk-summary-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 12px 0 44px;
  border: 1px solid var(--portfolio-border);
  border-radius: 10px;
}

.gk-summary-strip > div {
  min-height: 96px;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: 17px 22px;
  border-right: 1px solid var(--portfolio-border);
}

.gk-summary-strip > div:last-child { border-right: 0; }
.gk-summary-strip strong { color: var(--portfolio-orange); font: 700 28px/1 var(--font-mono); }
.gk-summary-strip span { color: var(--portfolio-muted); font-size: 12px; }

.gk-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 30px;
  margin-bottom: 18px;
}

.gk-section-heading span,
.gk-field-label {
  color: var(--portfolio-muted);
  font: 700 11px/1.4 var(--font-mono);
  letter-spacing: .11em;
  text-transform: uppercase;
}

.gk-section-heading h2 { margin: 5px 0 0; color: var(--portfolio-ink); font-size: 24px; letter-spacing: -.02em; }
.gk-section-heading p { max-width: 390px; margin: 0; color: var(--portfolio-muted); font-size: 13px; line-height: 1.5; }

.gk-module-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }

body[data-app-route="gkentei"] .gk-module-row {
  position: relative;
  width: 100%;
  min-height: 184px;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 18px;
  grid-template-areas:
    "index copy arrow"
    "icon state state"
    "progress progress progress";
  grid-template-rows: auto 1fr auto;
  align-items: start;
  gap: 13px 14px;
  padding: 18px;
  border: 1px solid var(--portfolio-border);
  border-radius: 10px;
  background: transparent;
  color: var(--portfolio-ink);
  text-align: left;
  cursor: pointer;
}

.gk-module-row.is-started::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 10px 0 0 10px;
  background: var(--portfolio-orange);
}

.gk-module-row:hover { border-color: var(--portfolio-orange); background: color-mix(in srgb, var(--portfolio-surface-2) 48%, transparent); }
.gk-module-index { grid-area: index; color: var(--portfolio-muted); font: 400 29px/1 var(--font-mono); }
.gk-module-icon {
  grid-area: icon;
  align-self: end;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--portfolio-border);
  border-radius: 10px;
  color: var(--portfolio-muted);
}

.gk-module-copy { grid-area: copy; display: grid; gap: 7px; min-width: 0; }
.gk-module-copy strong { color: var(--portfolio-ink); font-size: 16px; line-height: 1.4; }
.gk-module-copy small,
.gk-module-state small { color: var(--portfolio-muted); font-size: 12px; line-height: 1.45; }
.gk-module-state { grid-area: state; align-self: end; display: grid; gap: 5px; }
.gk-module-state strong { color: var(--portfolio-ink); font-size: 12px; }
.gk-module-row.is-started .gk-module-state strong { color: var(--portfolio-orange); }
.gk-module-arrow { grid-area: arrow; justify-self: end; color: var(--portfolio-muted); }
.gk-module-row:hover .gk-module-arrow { color: var(--portfolio-orange); }
.gk-module-progress {
  grid-area: progress;
  width: 100%;
  height: 5px;
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  appearance: none;
  background: var(--portfolio-surface-2);
}
.gk-module-progress::-webkit-progress-bar { background: var(--portfolio-surface-2); }
.gk-module-progress::-webkit-progress-value { background: var(--portfolio-orange); }
.gk-module-progress::-moz-progress-bar { background: var(--portfolio-orange); }

.gk-setup-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(310px, .85fr);
  gap: 56px;
  padding-top: 32px;
}

.gk-quiz-sizes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 13px 0 28px; }
body[data-app-route="gkentei"] .gk-quiz-size {
  min-height: 84px;
  display: grid;
  place-content: center;
  gap: 7px;
  border: 1px solid var(--portfolio-border-strong);
  border-radius: 10px;
  background: transparent;
  color: var(--portfolio-muted);
  cursor: pointer;
}

body[data-app-route="gkentei"] .gk-quiz-size:hover,
body[data-app-route="gkentei"] .gk-quiz-size.is-active {
  border-color: var(--portfolio-orange);
  background: var(--portfolio-orange-soft);
  color: var(--portfolio-orange);
}

.gk-quiz-size strong { font: 700 28px/1 var(--font-mono); }
.gk-quiz-size span { font-size: 11px; }
.gk-filter-label { display: flex; align-items: center; gap: 7px; margin-top: 6px; }
.gk-filter-row { display: grid; grid-template-columns: 1.5fr 1fr; gap: 10px; margin: 13px 0 24px; }
.gk-filter-row label { display: grid; gap: 7px; color: var(--portfolio-muted); font-size: 11px; }

.gk-filter-row select,
.gk-bank-toolbar select,
.gk-search-field {
  min-height: 46px;
  border: 1px solid var(--portfolio-border-strong);
  border-radius: 8px;
  background: var(--portfolio-surface);
  color: var(--portfolio-ink);
}

.gk-filter-row select,
.gk-bank-toolbar select { padding: 0 13px; }
.gk-start-action { min-width: 280px; }
.gk-availability { margin: 10px 0 0; color: var(--portfolio-muted); font-size: 11px; }
.gk-setup-rules { display: grid; align-content: start; gap: 20px; padding: 2px 0 2px 28px; border-left: 1px solid var(--portfolio-border); }
.gk-setup-rules > div { display: flex; gap: 15px; color: var(--portfolio-orange); }
.gk-setup-rules p { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; color: var(--portfolio-ink); font-size: 13px; }
.gk-setup-rules p span { color: var(--portfolio-muted); }

.gk-quiz-topline {
  min-height: 54px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.gk-quiz-topline > div { display: grid; justify-items: center; gap: 4px; color: var(--portfolio-muted); font-size: 12px; }
.gk-quiz-topline > div strong { color: var(--portfolio-orange); font: 700 12px/1 var(--font-mono); }
.gk-quiz-topline time { justify-self: end; color: var(--portfolio-orange); font: 700 25px/1 var(--font-mono); }
.gk-quit-quiz { min-height: 40px; justify-self: start; border: 0; background: transparent; color: var(--portfolio-muted); cursor: pointer; }
.gk-quit-quiz:hover { color: var(--portfolio-orange); }
.gk-quiz-progress { height: 3px; }
.gk-quiz-card { width: min(780px, 86%); margin: 55px auto 0; }
.gk-question-meta { display: flex; justify-content: space-between; align-items: center; gap: 20px; color: var(--portfolio-muted); font: 700 11px/1.4 var(--font-mono); letter-spacing: .11em; }
.gk-question-tags { display: flex; gap: 6px; }
.gk-question-tags span { padding: 5px 8px; border: 1px solid var(--portfolio-border); border-radius: 999px; font-size: 10px; letter-spacing: 0; }
.gk-question-title { margin: 22px 0 36px; color: var(--portfolio-ink); font: 650 clamp(26px, 2.6vw, 38px)/1.55 var(--font-jp-sans); letter-spacing: -.035em; }
.gk-answer-list { display: grid; gap: 10px; }

body[data-app-route="gkentei"] .gk-answer {
  min-height: 64px;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 14px;
  padding: 8px;
  border: 1px solid var(--portfolio-border);
  border-radius: 10px;
  background: transparent;
  color: var(--portfolio-ink);
  text-align: left;
  cursor: pointer;
}

.gk-answer > span:first-child {
  min-height: 46px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--portfolio-surface-2);
  color: var(--portfolio-muted);
  font: 700 12px/1 var(--font-mono);
}

.gk-answer strong { font-family: var(--font-jp-sans); font-size: 15px; font-weight: 600; line-height: 1.5; }
.gk-answer:hover:not(:disabled) { border-color: var(--portfolio-orange); background: var(--portfolio-orange-soft); }
.gk-answer.is-correct { border-color: var(--portfolio-success); color: var(--portfolio-success); }
.gk-answer.is-wrong { border-color: var(--portfolio-danger); color: var(--portfolio-danger); }
.gk-answer:disabled { opacity: 1; cursor: default; }
.gk-answer-state { justify-self: center; font-weight: 800; }

.gk-feedback {
  margin-top: 17px;
  padding: 17px 20px;
  border-left: 3px solid var(--portfolio-success);
  background: var(--portfolio-success-soft);
}

.gk-feedback.is-wrong { border-color: var(--portfolio-danger); background: var(--portfolio-danger-soft); }
.gk-feedback > strong { color: var(--portfolio-ink); font-size: 14px; }
.gk-feedback p { margin: 8px 0 0; color: var(--portfolio-body); font-size: 13px; line-height: 1.65; }
.gk-bilingual-explanation { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.gk-bilingual-explanation section { padding: 13px 15px; border: 1px solid var(--portfolio-border); border-radius: 8px; background: color-mix(in srgb, var(--portfolio-surface) 72%, transparent); }
.gk-bilingual-explanation span { color: var(--portfolio-muted); font: 700 10px/1.4 var(--font-mono); letter-spacing: .04em; }
.gk-bilingual-explanation p { margin-top: 7px; }
.gk-keywords { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.gk-keywords span { padding: 4px 7px; border: 1px solid var(--portfolio-border-strong); border-radius: 999px; color: var(--portfolio-muted); font-size: 10px; }
.gk-next-action { min-width: 280px; margin-top: 18px; }

.gk-result,
.gk-empty-state {
  min-height: 70vh;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
}

.gk-result-icon {
  width: 74px;
  height: 74px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border: 1px solid var(--portfolio-orange);
  border-radius: 50%;
  background: var(--portfolio-orange-soft);
  color: var(--portfolio-orange);
  font-size: 28px;
}

.gk-result h1 { margin: 0; color: var(--portfolio-ink); font-size: 56px; letter-spacing: -.05em; }
.gk-result > p:not(.gk-eyebrow),
.gk-empty-state p { max-width: 500px; color: var(--portfolio-muted); }
.gk-result-score {
  width: 180px;
  height: 180px;
  display: grid;
  place-content: center;
  gap: 7px;
  margin: 28px;
  border: 9px solid var(--portfolio-orange-soft);
  border-top-color: var(--portfolio-orange);
  border-radius: 50%;
}

.gk-result-score strong { color: var(--portfolio-orange); font: 700 42px/1 var(--font-mono); }
.gk-result-score span { color: var(--portfolio-muted); font-size: 11px; }
.gk-result-actions { display: flex; gap: 10px; }
.gk-empty-state > i { color: var(--portfolio-orange); font-size: 34px; }
.gk-empty-state h2 { margin: 20px 0 6px; color: var(--portfolio-ink); font-size: 30px; }

.gk-bank-toolbar { display: grid; grid-template-columns: minmax(260px, 1fr) 260px 170px; gap: 10px; margin-top: 26px; }
.gk-search-field { display: flex; align-items: center; gap: 10px; padding: 0 13px; }
body[data-app-route="gkentei"] .gk-search-field input {
  width: 100%;
  min-height: 34px;
  padding: 0;
  border: 0 !important;
  border-radius: 0 !important;
  outline: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  color: var(--portfolio-ink);
}
body[data-app-route="gkentei"] .gk-search-field:focus-within {
  outline: 2px solid var(--accent, #c84d24);
  outline-offset: 3px;
}
.gk-bank-heading { display: flex; justify-content: space-between; align-items: center; margin: 24px 0 12px; }
.gk-bank-heading > strong { font-size: 13px; }
.gk-topic-guide-list { display: grid; gap: 16px; }
.gk-topic-guide { border: 1px solid var(--portfolio-border); border-radius: 10px; background: color-mix(in srgb, var(--portfolio-surface) 78%, transparent); overflow: hidden; }
.gk-topic-guide > header { min-height: 84px; display: grid; grid-template-columns: 46px 48px minmax(0, 1fr); align-items: center; gap: 14px; padding: 16px 20px; border-bottom: 1px solid var(--portfolio-border); }
.gk-topic-number { color: var(--portfolio-orange); font: 400 20px/1 var(--font-mono); }
.gk-topic-icon { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--portfolio-border); border-radius: 10px; color: var(--portfolio-orange); }
.gk-topic-guide h2 { margin: 0; color: var(--portfolio-ink); font: 650 20px/1.4 var(--font-jp-sans); letter-spacing: -.02em; }
.gk-topic-guide header p { margin: 3px 0 0; color: var(--portfolio-muted); font-size: 11px; }
.gk-topic-guide-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; padding: 20px; }
.gk-topic-label { color: var(--portfolio-orange); font: 700 10px/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.gk-topic-guide ul { display: grid; gap: 8px; margin: 12px 0 0; padding-left: 1.25em; color: var(--portfolio-body); font-size: 13px; line-height: 1.6; }
.gk-topic-guide li::marker { color: var(--portfolio-orange); }
.gk-topic-keywords { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.gk-topic-keywords span { padding: 5px 8px; border: 1px solid var(--portfolio-border-strong); border-radius: 999px; color: var(--portfolio-muted); font: 500 11px/1.35 var(--font-jp-sans); }
.gk-topic-examples { padding: 0 20px 20px; }
.gk-topic-examples-head { display: flex; justify-content: space-between; align-items: center; padding-top: 17px; border-top: 1px solid var(--portfolio-border); }
.gk-topic-examples-head small { color: var(--portfolio-muted); font-size: 10px; }
.gk-example-question { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 8px 18px; padding: 15px 0; border-bottom: 1px solid var(--portfolio-border); }
.gk-example-question:last-child { border-bottom: 0; }
.gk-example-question > div { grid-column: 1; display: flex; flex-wrap: wrap; gap: 7px; color: var(--portfolio-muted); font-size: 10px; }
.gk-example-question > div span:first-child { color: var(--portfolio-orange); font-weight: 700; }
.gk-example-question > strong { grid-column: 1; color: var(--portfolio-ink); font: 600 14px/1.55 var(--font-jp-sans); }
body[data-app-route="gkentei"] .gk-example-question > button { grid-column: 2; grid-row: 1 / 3; min-height: 38px; padding: 0 12px; border: 1px solid var(--portfolio-border-strong); background: transparent; color: var(--portfolio-ink); cursor: pointer; }
.gk-example-question > button:hover { border-color: var(--portfolio-orange); color: var(--portfolio-orange); }
.gk-no-example { margin: 14px 0 0; color: var(--portfolio-muted); font-size: 12px; }
.gk-history-list { display: grid; }
.gk-history-row { min-height: 64px; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 11px 0; border-bottom: 1px solid var(--portfolio-border); }
.gk-history-row:last-child { border-bottom: 0; }
.gk-history-row > div { display: grid; gap: 4px; }
.gk-history-row > div:last-child { text-align: right; }
.gk-history-row strong { color: var(--portfolio-ink); font-size: 13px; }
.gk-history-row span { color: var(--portfolio-muted); font-size: 11px; }

@media (max-width: 1180px) {
  .gk-module-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1040px) {
  .gk-shell { grid-template-columns: 220px minmax(0, 1fr); }
  .gk-sidebar-head { padding-inline: 22px; }
  .gk-main { padding-inline: 32px; }
  .gk-view-header { grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; }
  body[data-app-route="gkentei"] .gk-module-row { grid-template-columns: 48px minmax(0, 1fr) 20px; gap: 13px 14px; padding: 18px; }
  .gk-bank-toolbar { grid-template-columns: 1fr 1fr; }
  .gk-search-field { grid-column: 1 / 3; }
}

@media (max-width: 820px) {
  .gk-shell { display: block; }
  .gk-sidebar { position: relative; width: 100%; height: auto; border-right: 0; border-bottom: 1px solid var(--portfolio-border); }
  .gk-sidebar-head { min-height: 66px; padding-inline: 18px; }
  .gk-mobile-menu { display: grid; }
  .gk-sidebar-body { display: none; }
  .gk-sidebar-body.is-open { display: flex; }
  .gk-primary-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 8px 12px 14px; }
  .gk-nav-item { min-height: 46px; padding-inline: 10px; }
  .gk-nav-item::before { inset: auto 12px 0; width: auto; height: 2px; }
  .gk-sidebar-foot { gap: 10px; margin-top: 0; border-top: 1px solid var(--portfolio-border); padding: 14px 18px 18px; }
  .gk-data-note { display: none; }
  .gk-sidebar-foot p { margin: 0; }
  .gk-back-apps { min-height: 44px; }
  .gk-main { padding: 34px 24px 48px; }
  .gk-view-header { grid-template-columns: 1fr; }
  .gk-progress-panel { max-width: 460px; }
  .gk-module-list { grid-template-columns: 1fr; }
  body[data-app-route="gkentei"] .gk-module-row { grid-template-columns: 48px minmax(0, 1fr) 20px; min-height: 164px; gap: 13px 14px; }
  .gk-module-icon { width: 46px; height: 46px; }
  .gk-setup-grid { grid-template-columns: 1fr; gap: 30px; }
  .gk-setup-rules { grid-template-columns: repeat(3, 1fr); border-left: 0; border-top: 1px solid var(--portfolio-border); padding: 24px 0 0; }
  .gk-topic-guide-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .gk-main { padding: 28px 18px 42px; }
  .gk-primary-nav { gap: 2px 8px; }
  .gk-nav-item { grid-template-columns: 22px minmax(0, 1fr) auto; gap: 4px; padding-inline: 4px; font-size: 13px; }
  .gk-nav-item span { white-space: nowrap; }
  .gk-nav-item small { display: none; }
  .gk-nav-item .gk-wrong-count:not(:empty) { display: inline; }
  .gk-view-title { font-size: 38px; line-height: 1.05; }
  .gk-view-lead { font-size: 14px; }
  .gk-summary-strip { grid-template-columns: repeat(2, 1fr); }
  .gk-summary-strip > div { min-height: 82px; padding: 14px; }
  .gk-summary-strip > div:nth-child(2) { border-right: 0; }
  .gk-summary-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--portfolio-border); }
  .gk-summary-strip strong { font-size: 23px; }
  .gk-summary-strip span { font-size: 10px; }
  .gk-section-heading { display: block; }
  .gk-section-heading p { margin-top: 8px; }
  body[data-app-route="gkentei"] .gk-module-row { grid-template-columns: 42px minmax(0, 1fr) 18px; min-height: 156px; gap: 11px 12px; padding: 15px 14px; }
  .gk-module-index { font-size: 24px; }
  .gk-module-icon { width: 42px; height: 42px; }
  .gk-module-copy strong { font-size: 15px; line-height: 1.35; }
  .gk-module-copy small { font-size: 11px; }
  .gk-module-state strong { font-size: 11px; }
  .gk-module-state small { font-size: 10px; }
  .gk-filter-row { grid-template-columns: 1fr; }
  .gk-setup-rules { grid-template-columns: 1fr; }
  .gk-start-action,
  .gk-next-action { width: 100%; min-width: 0; }
  .gk-quiz-card { width: 100%; margin-top: 55px; }
  .gk-question-meta { align-items: flex-start; }
  .gk-question-tags { display: none; }
  .gk-question-title { margin: 21px 0 34px; font-size: 26px; line-height: 1.65; }
  body[data-app-route="gkentei"] .gk-answer { min-height: 66px; grid-template-columns: 46px minmax(0, 1fr) 20px; }
  .gk-answer strong { font-size: 14px; }
  .gk-feedback { padding: 16px; }
  .gk-result h1 { font-size: 45px; }
  .gk-result-actions { width: 100%; flex-direction: column; }
  .gk-bank-toolbar { grid-template-columns: 1fr; }
  .gk-search-field { grid-column: auto; }
  .gk-bank-heading { gap: 12px; }
  .gk-bilingual-explanation { grid-template-columns: 1fr; }
  .gk-topic-guide > header { grid-template-columns: 36px 42px minmax(0, 1fr); gap: 10px; padding: 14px; }
  .gk-topic-icon { width: 40px; height: 40px; }
  .gk-topic-guide-grid,
  .gk-topic-examples { padding-inline: 14px; }
  .gk-example-question { grid-template-columns: 1fr; }
  body[data-app-route="gkentei"] .gk-example-question > button { grid-column: 1; grid-row: auto; justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  .gk-progress,
  .gk-quiz-progress { scroll-behavior: auto; }
}