body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  background:
    radial-gradient(circle at 0% 0%, rgba(20, 184, 166, 0.16), transparent 38%),
    radial-gradient(circle at 100% 0%, rgba(37, 99, 235, 0.18), transparent 42%),
    linear-gradient(180deg, #f7f9fd 0%, #eef4ff 100%);
  color: #0f172a;
}

.app-shell__header {
  width: min(100%, 1100px);
  margin: 0 auto;
  padding: 1.25rem 1rem 0.6rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
}

.app-shell__brand h1 {
  margin: 0;
  font-size: clamp(1.3rem, 2.8vw, 1.8rem);
}

.app-shell__eyebrow {
  margin: 0 0 0.2rem;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
  color: #0f766e;
  font-weight: 700;
}

.app-shell__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.app-shell__nav a {
  text-decoration: none;
  color: #0f172a;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(15, 23, 42, 0.15);
  border-radius: 999px;
  padding: 0.42rem 0.85rem;
  font-weight: 600;
}

.app-shell__main {
  width: min(100%, 1100px);
  margin: 0 auto;
  padding: 0.7rem 1rem 2rem;
  box-sizing: border-box;
}

.home-hero,
.home-card,
.admin-template-editor__notice,
.admin-template-editor__form-section,
.admin-template-editor__list-section,
.template-status-panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 1rem;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

.home-hero {
  padding: 1.2rem 1.25rem;
  margin-bottom: 1rem;
}

.home-hero h2 {
  margin: 0 0 0.5rem;
}

.home-hero p {
  margin: 0;
}

.home-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.template-list {
  display: grid;
  gap: 0.7rem;
}

.template-list__item {
  padding: 0.85rem;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 0.8rem;
  background: rgba(248, 250, 252, 0.95);
  display: grid;
  gap: 0.45rem;
}

.template-list__item h3 {
  margin: 0;
}

.template-list__item p {
  margin: 0;
}

.template-list__meta {
  color: #475569;
  font-size: 0.93rem;
}

.template-list__empty {
  margin: 0;
  color: #475569;
}

.template-list__error {
  margin: 0;
  color: #b91c1c;
  font-weight: 600;
}

.home-card {
  padding: 1rem;
  display: grid;
  gap: 0.65rem;
}

.home-card h3,
.home-card h2 {
  margin: 0;
}

.home-card p {
  margin: 0;
  color: #334155;
}

.home-card input,
.home-card button,
.admin-template-editor button,
.template-form button,
.template-status-panel button,
.quiz-play button,
.quiz-play input,
.quiz-play textarea {
  font: inherit;
}

.home-card input,
.template-form input,
.template-form textarea,
.quiz-play textarea,
.word-pool-selector select {
  border: 1px solid rgba(15, 23, 42, 0.18);
  border-radius: 0.65rem;
  padding: 0.55rem 0.7rem;
  background: #ffffff;
}

.home-card button,
.template-form button,
.template-status-panel button,
.submit-panel button,
.quiz-play button {
  border: 0;
  border-radius: 0.65rem;
  background: linear-gradient(120deg, #2563eb, #14b8a6);
  color: #ffffff;
  padding: 0.56rem 0.86rem;
  cursor: pointer;
  font-weight: 700;
}

.home-card button:disabled,
.template-form button:disabled,
.template-status-panel button:disabled,
.submit-panel button:disabled,
.quiz-play button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.admin-template-editor {
  display: grid;
  gap: 1rem;
}

.admin-template-editor__form-section,
.admin-template-editor__list-section {
  padding: 1rem;
}

.admin-template-editor__results-section {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 1rem;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  padding: 1rem;
}

.admin-template-editor__notice {
  padding: 0.75rem 0.95rem;
  margin: 0 0 0.75rem;
}

.admin-template-editor__notice--error {
  border-color: rgba(220, 38, 38, 0.35);
  color: #991b1b;
}

.admin-template-editor__notice--info {
  border-color: rgba(37, 99, 235, 0.28);
}

.admin-template-editor__list {
  display: grid;
  gap: 0.7rem;
}

.admin-template-editor__results {
  display: grid;
  gap: 0.75rem;
}

.admin-result-card {
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 0.85rem;
  padding: 0.85rem;
  background: rgba(248, 250, 252, 0.95);
  display: grid;
  gap: 0.5rem;
}

.admin-result-card h3,
.admin-result-card p {
  margin: 0;
}

.admin-result-card__meta {
  color: #475569;
  font-size: 0.93rem;
}

.admin-result-card__answers {
  display: grid;
  gap: 0.45rem;
}

.admin-result-card__actions {
  display: flex;
  justify-content: flex-end;
}

.admin-result-card__answer {
  border-left: 0.25rem solid #14b8a6;
  padding: 0.35rem 0.55rem;
  background: #ffffff;
  border-radius: 0.45rem;
}

.template-form {
  display: grid;
  gap: 0.8rem;
}

.template-form__field,
.template-form__questions {
  display: grid;
  gap: 0.45rem;
}

.template-form__questions-header,
.template-form__actions,
.template-status-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.template-form__question-row {
  display: grid;
  gap: 0.5rem;
  border: 1px dashed rgba(15, 23, 42, 0.16);
  border-radius: 0.75rem;
  padding: 0.75rem;
}

.template-status-panel {
  padding: 0.85rem 0.95rem;
}

.template-status-panel h3,
.template-status-panel p {
  margin: 0 0 0.45rem;
}

.quiz-play,
.session-result {
  width: min(100%, 960px);
  margin: 0 auto;
  padding: 1rem;
  box-sizing: border-box;
}

.quiz-play {
  display: grid;
  gap: 1rem;
}

.quiz-play__template-selector {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 1rem;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  padding: 1rem;
  display: grid;
  gap: 0.7rem;
}

.quiz-play__template-selector h2,
.quiz-play__template-selector p {
  margin: 0;
}

.quiz-play__template-selector input {
  border: 1px solid rgba(15, 23, 42, 0.18);
  border-radius: 0.65rem;
  padding: 0.55rem 0.7rem;
  background: #ffffff;
}

.quiz-play__summary,
.quiz-play__question,
.submit-panel {
  background: #ffffff;
  border: 1px solid rgba(30, 41, 59, 0.14);
  border-radius: 1rem;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.quiz-play__summary,
.quiz-play__question {
  padding: 1rem 1.1rem;
}

.quiz-play__questions {
  display: grid;
  gap: 1rem;
}

.quiz-play__question h2,
.quiz-play__summary p,
.quiz-play__status {
  margin-top: 0;
}

.quiz-play__question h2 {
  margin-bottom: 0.75rem;
}

.quiz-play__rendered {
  padding: 0.75rem 0.9rem;
  border-radius: 0.75rem;
  background: #f8fafc;
  overflow-wrap: anywhere;
}

.quiz-play__answer-form {
  display: grid;
  gap: 0.75rem;
}

.quiz-play__answer-form textarea {
  min-height: 120px;
  resize: vertical;
}

.word-pool-selector {
  display: grid;
  gap: 0.75rem;
  margin: 0.75rem 0;
}

.word-pool-selector select,
.quiz-play__answer-form textarea,
.template-form input,
.template-form textarea {
  width: 100%;
  box-sizing: border-box;
}

.word-pool-selector__legend {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 0.75rem;
  margin: 0;
}

.submit-panel {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid #ccc;
  border-radius: 0.5rem;
}

.session-result {
  display: grid;
  gap: 1.25rem;
}

.admin-session-result-page {
  display: grid;
  gap: 0.8rem;
}

.admin-session-result-page__back {
  justify-self: start;
}

.admin-session-result-page__message {
  margin: 0;
  color: #475569;
}

.session-result h1 {
  margin: 0;
}

.session-result dl,
.session-result__answer,
.session-result__patterns {
  background: #ffffff;
  border: 1px solid rgba(30, 41, 59, 0.16);
  border-radius: 1rem;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
}

.session-result dl {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 1rem 1.25rem;
}

.session-result dt {
  font-weight: 700;
  color: #334155;
}

.session-result dd {
  margin: 0;
  color: #0f172a;
}

.session-result__answers {
  display: grid;
  gap: 1rem;
}

.session-result__answer {
  padding: 1.25rem 1.25rem 1.25rem 1.4rem;
  position: relative;
  overflow: hidden;
}

.session-result__answer::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 0.35rem;
  background: linear-gradient(180deg, #2563eb, #14b8a6);
}

.session-result__answer h2 {
  margin: 0 0 0.75rem;
}

.session-result__answer p {
  margin: 0.5rem 0;
}

.session-result__patterns {
  list-style: none;
  margin: 0;
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.session-result__patterns li {
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: #e2e8f0;
  color: #0f172a;
}

@media (max-width: 640px) {
  .app-shell__header,
  .app-shell__main {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .home-hero,
  .home-card,
  .admin-template-editor__form-section,
  .admin-template-editor__list-section,
  .template-status-panel {
    border-radius: 0.85rem;
  }

  .quiz-play,
  .session-result {
    padding: 0.75rem;
  }

  .quiz-play__summary,
  .quiz-play__question,
  .submit-panel,
  .session-result dl,
  .session-result__answer,
  .session-result__patterns {
    border-radius: 0.85rem;
  }

  .session-result dl {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .session-result dt {
    margin-top: 0.4rem;
  }

  .session-result__answer {
    padding: 1rem 1rem 1rem 1.2rem;
  }

  .word-pool-selector__legend {
    grid-template-columns: 1fr;
  }

  .quiz-play__summary,
  .session-result__patterns {
    padding: 0.9rem;
  }
}