/* ---------------------------------------------------------------------------
 * AWS SAA 対策ツール専用スタイル (css/aws-saa.css)
 * common.css → core.css → aws-saa.css の順で読み込む。
 * ---------------------------------------------------------------------------
 * 設計方針:
 * 資格の問題演習は「同じ画面を何十回も見る」道具である。装飾は繰り返しに耐えず、
 * 数回で邪魔になるため置かない。代わりに、数字が桁で揃うこと、設問が読みやすい
 * 行長に収まること、正誤が色だけでなく記号でも分かることを優先している。
 * ------------------------------------------------------------------------- */

.tool-intro {
  margin: 8px 0 4px;
}

.tool-intro h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin-bottom: 12px;
  max-width: 30ch;
  /* 日本語は語中で折れると読めなくなる。文節で折り、行の長さも均す */
  word-break: auto-phrase;
  text-wrap: balance;
}

.site-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.85;
  max-width: 68ch;
}

.saa-view {
  margin-top: 28px;
}

/* ===========================================================================
 * 概況の数値
 * ========================================================================= */

.saa-stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.saa-stat {
  padding: 16px 20px 18px 0;
}

.saa-stat-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.saa-stat-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--text-color);
}

/* --- 習熟度の積み上げバー --------------------------------------------------
 * 4状態の比率は、数字を4つ並べるより1本の帯で見たほうが速く読める。
 * 色は状態の区別のためだけに使い、凡例に文字を必ず添える。
 * ------------------------------------------------------------------------ */

.saa-level-bar {
  display: flex;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background-color: var(--border-color);
}

.saa-level-seg {
  display: block;
  min-width: 2px;
}

.saa-level-seg.is-l3, .saa-legend-dot.is-l3 { background-color: var(--accent); }
.saa-level-seg.is-l2, .saa-legend-dot.is-l2 { background-color: #7fb083; }
.saa-level-seg.is-l1, .saa-legend-dot.is-l1 { background-color: var(--danger-color); }
.saa-level-seg.is-l0, .saa-legend-dot.is-l0 { background-color: var(--border-color); }

.saa-level-legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 10px 0 0;
  padding: 0;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.saa-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.saa-legend-item b {
  font-variant-numeric: tabular-nums;
  color: var(--text-color);
}

.saa-legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 3px;
  flex-shrink: 0;
}

.saa-legend-dot.is-l0 {
  border: 1px solid var(--text-secondary);
  background-color: transparent;
}

/* ===========================================================================
 * ブロック（見出し + 中身）
 * ========================================================================= */

.saa-block {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--border-color);
}

.saa-block-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}

.saa-quick-title {
  margin-top: 26px;
}

.saa-empty {
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0;
  max-width: 60ch;
}

/* ===========================================================================
 * 出題条件
 * ========================================================================= */

.saa-fieldset {
  border: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.saa-fieldset .control-label {
  padding: 0;
}

.saa-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.saa-check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-color);
  cursor: pointer;
  white-space: nowrap;
}

.saa-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.saa-match-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  margin: 14px 0 12px;
}

.saa-start {
  min-width: 200px;
}

.saa-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===========================================================================
 * サービス別の絞り込み（カテゴリ→サービス群のカードアコーディオン）
 * 表形式にすると縦に長大になるため、カテゴリを折りたたみカードにして
 * 必要な分だけ開く形にしている。
 * ========================================================================= */

.saa-svc-filter {
  margin-bottom: 22px;
}

.saa-svc-tree,
.saa-svc-progress {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.saa-svc-cat {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--surface-color);
  overflow: hidden;
}

.saa-svc-cat-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  cursor: pointer;
  list-style: none;
  font-size: 0.85rem;
}

.saa-svc-cat-head::-webkit-details-marker {
  display: none;
}

.saa-svc-cat-head::before {
  content: '\25B8';
  display: inline-block;
  color: var(--text-secondary);
  transition: transform 0.15s ease;
  flex-shrink: 0;
}

.saa-svc-cat[open] > .saa-svc-cat-head::before {
  transform: rotate(90deg);
}

.saa-svc-cat-name {
  font-weight: 700;
  flex: 1 1 auto;
  min-width: 0;
}

.saa-svc-cat-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.saa-svc-mini-btn {
  border: 1px solid var(--border-color);
  background: none;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.saa-svc-mini-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.saa-svc-cat-bar {
  width: 56px;
  flex-shrink: 0;
}

.saa-svc-rows {
  padding: 2px 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.saa-svc-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  font-size: 0.83rem;
  color: var(--text-color);
  cursor: pointer;
}

.saa-svc-row input {
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.saa-svc-prow {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  font-size: 0.82rem;
}

.saa-svc-prow-name {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--text-color);
}

.saa-svc-prow-acc {
  min-width: 3.2em;
  color: var(--text-secondary);
}

/* ===========================================================================
 * 分野別テーブル
 * ========================================================================= */

.saa-table-wrap {
  overflow-x: auto;
}

.saa-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  min-width: 520px;
}

.saa-table th,
.saa-table td {
  padding: 11px 12px 11px 0;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.saa-table thead th {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  border-bottom-width: 1px;
  white-space: nowrap;
}

.saa-table tbody th {
  font-weight: 600;
  color: var(--text-color);
}

.saa-num {
  text-align: right !important;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.saa-dom-no {
  display: inline-block;
  min-width: 1.4em;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  font-weight: 700;
}

.saa-minibar {
  display: inline-block;
  vertical-align: middle;
  width: 90px;
  height: 6px;
  border-radius: 999px;
  background-color: var(--border-color);
  overflow: hidden;
}

.saa-minibar > span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background-color: var(--accent);
}

.saa-minibar-text {
  margin-left: 10px;
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* --- タスクステートメント別（既定では畳んでおく） --- */

.saa-task-details {
  margin-top: 18px;
}

.saa-task-details > summary {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.saa-task-list {
  margin-top: 12px;
}

.saa-task-row {
  display: grid;
  grid-template-columns: 3em 1fr 5em 4em;
  gap: 10px;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.82rem;
}

.saa-task-id {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--text-secondary);
}

.saa-task-name {
  line-height: 1.6;
}

.saa-task-stat {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ===========================================================================
 * 履歴・管理
 * ========================================================================= */

.saa-history-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.saa-history-item {
  display: grid;
  grid-template-columns: 4.5em 3.5em 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.83rem;
}

.saa-history-score {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.saa-history-acc {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-weight: 600;
}

.saa-history-label {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.saa-history-time {
  color: var(--text-secondary);
  font-size: 0.76rem;
  white-space: nowrap;
}

.saa-manage {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.saa-import-label {
  cursor: pointer;
}

/* ===========================================================================
 * 演習画面
 * ========================================================================= */

.saa-quiz-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.saa-quiz-progress {
  font-size: 0.82rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}

.saa-quit {
  color: var(--text-secondary);
}

.saa-quiz-track {
  height: 4px;
  border-radius: 999px;
  background-color: var(--border-color);
  overflow: hidden;
  margin-bottom: 22px;
}

.saa-quiz-track > span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background-color: var(--accent);
  transition: transform 0.25s ease;
}

.saa-quiz-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  margin-bottom: 14px;
  font-size: 0.76rem;
  color: var(--text-secondary);
}

.saa-tag {
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.02em;
}

/* 分野は模擬試験の配点根拠として残すが、主役はサービスタグなので控えめに表示する */
.saa-quiz-domain-caption {
  color: var(--text-secondary);
  opacity: 0.85;
}

.saa-quiz-domain-caption::before {
  content: '\00b7\0020';
}

.saa-quiz-task {
  line-height: 1.5;
}

.saa-quiz-id {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  opacity: 0.8;
}

/*
 * 設問は長い。読み進められる行長（全角40字前後）に収め、行間を広めに取る。
 * ここを本文幅いっぱいに伸ばすと、行を追う目が戻る位置を見失う。
 */
.saa-quiz-text {
  font-size: 1.02rem;
  line-height: 2;
  color: var(--text-color);
  max-width: 62ch;
  margin: 0 0 10px;
}

.saa-quiz-hint {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin: 0 0 18px;
}

/* --- 選択肢 --- */

.saa-choices {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  max-width: 70ch;
}

.saa-choice {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  background-color: var(--surface-color);
  transition: border-color 0.15s ease;
}

.saa-choice:hover {
  border-color: var(--accent);
}

.saa-choice-label {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 12px;
  align-items: start;
  padding: 13px 16px;
  cursor: pointer;
}

.saa-choice-input {
  width: 17px;
  height: 17px;
  margin-top: 3px;
  accent-color: var(--accent);
  cursor: pointer;
}

.saa-choice-key {
  font-size: 0.8rem;
  font-weight: 800;
  line-height: 1.8;
  color: var(--text-secondary);
  min-width: 1.1em;
}

.saa-choice-text {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--text-color);
}

/*
 * 解答後の正誤表示。
 * 色だけに頼ると色覚特性のある利用者に伝わらないので、選択肢の末尾に
 * 記号（✓ / ✕）と読み上げ用テキストを置き、罫線の変化は補助に留める。
 * 片側だけを太くする装飾は、意味を持たない飾りに見えるため使わない。
 */
.saa-choice.is-answer {
  border-color: var(--accent);
  background-color: var(--accent-soft);
}

.saa-choice.is-picked-wrong {
  border-color: var(--danger-text);
}

.saa-choice-mark {
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.7;
  justify-self: end;
}

.saa-choice.is-answer .saa-choice-mark { color: var(--accent); }
.saa-choice.is-picked-wrong .saa-choice-mark { color: var(--danger-text); }

.saa-choice.is-picked-right .saa-choice-key,
.saa-choice.is-answer .saa-choice-key {
  color: var(--accent);
}

.saa-choice.is-picked-wrong .saa-choice-key {
  color: var(--danger-text);
}

.saa-choice-input:disabled + .saa-choice-key + .saa-choice-text {
  color: var(--text-color);
}

.saa-quiz-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}

.saa-quiz-actions .btn {
  min-width: 180px;
}

/* ===========================================================================
 * 解説
 * ========================================================================= */

.saa-explain {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--border-color);
  max-width: 70ch;
}

.saa-verdict {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 1.05rem;
  font-weight: 800;
  margin: 0 0 14px;
}

.saa-verdict.is-correct { color: var(--accent); }
.saa-verdict.is-wrong { color: var(--danger-text); }

.saa-verdict-mark {
  font-size: 1.2rem;
  line-height: 1;
}

.saa-answer-pair {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  margin: 0 0 20px;
  font-size: 0.84rem;
}

.saa-answer-pair dt {
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.saa-answer-pair dd {
  margin: 0;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

.saa-explain-head {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin: 22px 0 8px;
}

.saa-explain-body {
  font-size: 0.9rem;
  line-height: 2;
  color: var(--text-color);
  margin: 0;
}

.saa-why-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.saa-why {
  display: grid;
  grid-template-columns: 1.6em 1fr;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
  line-height: 1.85;
}

.saa-why:last-child {
  border-bottom: none;
}

.saa-why-key {
  font-weight: 800;
  color: var(--text-secondary);
}

.saa-why.is-right .saa-why-key {
  color: var(--accent);
}

.saa-why-text {
  color: var(--text-secondary);
}

.saa-why.is-right .saa-why-text {
  color: var(--text-color);
}

/* ===========================================================================
 * 結果画面
 * ========================================================================= */

.saa-rd-row {
  display: grid;
  grid-template-columns: minmax(90px, 8em) 1fr 4.5em;
  gap: 14px;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.saa-rd-row .saa-minibar {
  width: 100%;
}

.saa-rd-score {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}

.saa-missed {
  border-bottom: 1px solid var(--border-color);
}

.saa-missed-q {
  cursor: pointer;
  padding: 12px 0;
  font-size: 0.86rem;
  line-height: 1.7;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.saa-missed-id {
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  font-weight: 700;
  flex-shrink: 0;
}

.saa-missed-body {
  padding: 4px 0 18px;
  max-width: 68ch;
}

.saa-missed-full {
  font-size: 0.88rem;
  line-height: 1.95;
  margin: 0 0 12px;
}

.saa-missed-answer {
  font-size: 0.86rem;
  line-height: 1.85;
  margin: 0 0 12px;
  color: var(--accent);
}

/* ===========================================================================
 * レスポンシブ
 * ========================================================================= */

@media (max-width: 720px) {
  .tool-intro h1 {
    font-size: 1.5rem;
  }
  .saa-stat {
    padding: 13px 16px 14px 0;
  }
  .saa-stat-value {
    font-size: 1.4rem;
  }
  .saa-task-row {
    grid-template-columns: 2.6em 1fr;
    row-gap: 2px;
  }
  .saa-task-stat {
    grid-column: 2;
    text-align: left;
    display: inline;
  }
  .saa-history-item {
    grid-template-columns: 4em 3.5em 1fr;
  }
  .saa-history-time {
    grid-column: 3;
    text-align: right;
  }
  .saa-quiz-actions .btn {
    min-width: 0;
    flex: 1 1 100%;
  }
  .saa-choice-label {
    gap: 9px;
    padding: 12px 13px;
  }
  .saa-rd-row {
    grid-template-columns: 1fr 4.5em;
  }
  .saa-rd-row .saa-minibar {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}