/* shikaku-drill 演習画面。すべて .skd- で始まるクラスに限定。 */
.skd-app{overflow-wrap:anywhere;word-break:normal;--skd-fg:#222;--skd-muted:#666;--skd-bg:#fff;--skd-line:#ddd;--skd-accent:#1e73be;--skd-accent-bg:#eaf3fb;--skd-ok:#1b7f3b;--skd-ok-bg:#e6f5ea;--skd-ng:#c62828;--skd-ng-bg:#fdecea;--skd-warn-bg:#fff7e0;
  font-size:16px;line-height:1.7;color:var(--skd-fg);max-width:760px;margin:0 auto;padding:0 12px 48px;box-sizing:border-box}
.skd-app *,.skd-app *::before,.skd-app *::after{box-sizing:inherit}
.skd-app h1,.skd-app h2,.skd-app h3{line-height:1.4;margin:1.2em 0 .5em}
.skd-app h1{font-size:1.4rem}.skd-app h2{font-size:1.15rem;border-left:4px solid var(--skd-accent);padding-left:.5em}
.skd-app h3{font-size:1.02rem}
.skd-muted{color:var(--skd-muted);font-size:.92rem}
.skd-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skd-btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;min-height:44px;padding:.5em 1em;border:1px solid var(--skd-accent);border-radius:8px;background:var(--skd-bg);color:var(--skd-accent);font-size:1rem;cursor:pointer;text-decoration:none;line-height:1.3}
.skd-btn:hover{background:var(--skd-accent-bg)}
.skd-btn:focus-visible,.skd-choice:focus-visible{outline:3px solid #f5a623;outline-offset:2px}
.skd-btn-primary{background:var(--skd-accent);color:#fff}
.skd-btn-primary:hover{filter:brightness(1.08);background:var(--skd-accent)}
.skd-btn-big{width:100%;font-size:1.1rem;min-height:52px;margin-top:12px}
.skd-btn-danger{border-color:var(--skd-ng);color:var(--skd-ng)}
.skd-btn:disabled,.skd-btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed}
.skd-card{border:1px solid var(--skd-line);border-radius:10px;padding:14px 16px;margin:12px 0;background:var(--skd-bg)}
.skd-card-accent{border-color:var(--skd-accent);background:var(--skd-accent-bg)}
.skd-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.skd-row-between{justify-content:space-between}
.skd-notice{background:var(--skd-warn-bg);border:1px solid #f0d58c;border-radius:8px;padding:10px 12px;margin:10px 0;font-size:.95rem}
.skd-select{min-height:44px;font-size:1rem;padding:.3em .5em;border:1px solid var(--skd-line);border-radius:6px;max-width:100%}
/* 進捗バー */
.skd-bar{height:8px;background:#eee;border-radius:4px;overflow:hidden;flex:1 1 120px;min-width:80px}
.skd-bar>span{display:block;height:100%;background:var(--skd-accent)}
.skd-bar-ok>span{background:var(--skd-ok)}
/* 科目・論点一覧 */
.skd-subject{border:1px solid var(--skd-line);border-radius:10px;margin:10px 0;overflow:hidden}
.skd-subject>summary{cursor:pointer;padding:12px 14px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:8px;align-items:center;min-height:44px;background:#fafafa}
.skd-subject>summary::-webkit-details-marker{display:none}
.skd-subject>summary::after{content:"▸";color:var(--skd-muted);transition:transform .15s}
.skd-subject[open]>summary::after{transform:rotate(90deg)}
.skd-topic{display:grid;grid-template-columns:1fr auto;gap:4px 10px;align-items:center;padding:10px 14px;border-top:1px solid var(--skd-line)}
.skd-topic-name{font-weight:600}
.skd-topic-meta{grid-column:1;display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--skd-muted)}
.skd-topic .skd-btn{grid-column:2;grid-row:1/3;padding:.4em .9em}
/* 復習ボタン */
.skd-review{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.skd-review .skd-btn{flex-direction:column;gap:0;padding:.5em .2em;line-height:1.3;font-size:.92rem;min-width:0}
.skd-review .skd-count{font-size:1.25rem;font-weight:700}
/* 出題画面 */
.skd-quiz-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px;padding:8px 0;border-bottom:1px solid var(--skd-line);position:sticky;top:0;background:var(--skd-bg);z-index:2}
.skd-quiz-head .skd-row{flex-wrap:nowrap;gap:6px}
.skd-quiz-head .skd-btn{padding:.4em .7em;font-size:.95rem}
.skd-progress{font-weight:700;font-size:1.05rem}
.skd-quiz-topic{font-size:.92rem;color:var(--skd-muted);margin:8px 0 4px}
.skd-question{font-size:1.08rem;margin:12px 0 16px;padding:14px 16px;background:#f7f9fb;border-radius:10px}
.skd-question-no{display:inline-block;font-weight:700;color:var(--skd-accent);margin-right:.5em}
.skd-choices{display:flex;flex-direction:column;gap:10px}
.skd-choices-tf{flex-direction:row}
.skd-choice{display:flex;align-items:flex-start;gap:12px;width:100%;min-height:52px;padding:12px 14px;border:2px solid var(--skd-line);border-radius:10px;background:var(--skd-bg);font-size:1rem;text-align:left;cursor:pointer;color:var(--skd-fg);line-height:1.5}
.skd-choice:hover:not(:disabled){border-color:var(--skd-accent);background:var(--skd-accent-bg)}
.skd-choice:disabled{cursor:default;opacity:1}
.skd-choice-tf{flex:1;justify-content:center;align-items:center;min-height:72px;font-size:1.15rem}
.skd-choice-key{flex:0 0 auto;font-weight:700;min-width:1.4em;color:var(--skd-accent)}
.skd-choice-tf .skd-choice-key{font-size:1.6rem}
.skd-choice.skd-is-correct{border-color:var(--skd-ok);background:var(--skd-ok-bg)}
.skd-choice.skd-is-correct .skd-choice-key::after{content:" ✓";color:var(--skd-ok)}
.skd-choice.skd-is-chosen-wrong{border-color:var(--skd-ng);background:var(--skd-ng-bg)}
.skd-choice.skd-is-chosen-wrong .skd-choice-key::after{content:" ✕";color:var(--skd-ng)}
.skd-choice:disabled:not(.skd-is-correct):not(.skd-is-chosen-wrong){opacity:.6}
.skd-result{margin:16px 0 8px;padding:12px 16px;border-radius:10px;font-weight:700;font-size:1.15rem;display:flex;align-items:center;gap:10px}
.skd-result-ok{background:var(--skd-ok-bg);color:var(--skd-ok);border:1px solid var(--skd-ok)}
.skd-result-ng{background:var(--skd-ng-bg);color:var(--skd-ng);border:1px solid var(--skd-ng)}
.skd-result-icon{font-size:1.5rem}
.skd-exp{margin:8px 0 12px;padding:12px 14px;border:1px solid var(--skd-line);border-radius:10px;background:var(--skd-bg)}
.skd-exp-row{display:flex;gap:10px;padding:6px 0;border-top:1px dashed var(--skd-line)}
.skd-exp-row:first-child{border-top:0}
.skd-exp-row-correct{background:var(--skd-ok-bg);margin:0 -14px;padding:8px 14px;border-radius:6px;border-top:0}
.skd-exp-key{font-weight:700;min-width:1.4em;color:var(--skd-accent)}
.skd-exp-row-correct .skd-exp-key{color:var(--skd-ok)}
.skd-article-link{display:inline-block;margin:4px 0 8px}
.skd-bm{border:1px solid var(--skd-line);background:var(--skd-bg);border-radius:8px;min-height:44px;min-width:44px;padding:0 10px;font-size:.95rem;cursor:pointer;color:var(--skd-muted);white-space:nowrap}
@media (max-width:420px){.skd-bm .skd-bm-label{display:none}}
.skd-bm[aria-pressed="true"]{color:#c77c00;border-color:#c77c00;background:#fff7e0}
.skd-year-badge{display:inline-block;font-size:.8rem;padding:.1em .6em;border-radius:999px;background:#eee;color:#444;margin-left:.5em}
/* 結果 */
.skd-score{font-size:2rem;font-weight:700;text-align:center;margin:8px 0}
.skd-wrong-list{list-style:none;padding:0;margin:0}
.skd-wrong-list li{display:flex;justify-content:space-between;gap:8px;align-items:center;padding:8px 0;border-top:1px solid var(--skd-line)}
.skd-wrong-list li:first-child{border-top:0}
.skd-wrong-q{flex:1;font-size:.95rem}
/* 記録の管理 */
.skd-manage .skd-row{margin:8px 0}
.skd-confirm{border:1px solid var(--skd-ng);background:var(--skd-ng-bg);border-radius:8px;padding:10px 12px;margin:8px 0}
.skd-file{font-size:.95rem}
@media (min-width:600px){.skd-app{padding:0 16px 64px}.skd-app h1{font-size:1.6rem}.skd-topic{grid-template-columns:1fr 220px auto}.skd-topic-meta{grid-column:2;grid-row:1}.skd-topic .skd-btn{grid-column:3;grid-row:1}}
/* 演習ページ（body.skd-page＝ショートコードがあるページだけ）：Cocoon の投稿日・シェア・フォロー・著者欄・コメントを隠す。他のページには影響しない */
body.skd-page .article-header .date-tags,body.skd-page .article-header .post-date,body.skd-page .article-header .post-update,
body.skd-page .sns-share,body.skd-page .sns-follow,body.skd-page .author-box,body.skd-page .comment-area,body.skd-page .article-footer .footer-meta{display:none!important}

/* ---- 仕訳問題（案A） ---- */
.skd-type-badge{display:inline-block;font-size:.8rem;padding:.1em .6em;border-radius:999px;background:var(--skd-accent-bg);color:var(--skd-accent);margin-left:.5em}
.skd-check{display:flex;align-items:flex-start;gap:.6em;font-size:1rem;cursor:pointer}
.skd-check input{width:22px;height:22px;margin-top:.2em;flex:none}
.skd-btn-small{min-height:36px;padding:.3em .8em;font-size:.92rem}
.skd-journal{margin:8px 0}
.skd-journal-premise{font-size:.95rem;background:var(--skd-warn-bg);border:1px solid #f0d58c;border-radius:8px;padding:8px 12px;margin:0 0 12px}
.skd-journal-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:560px){.skd-journal-grid{grid-template-columns:1fr}}
.skd-journal-col{border:1px solid var(--skd-line);border-radius:10px;padding:10px;background:var(--skd-bg)}
.skd-journal-col-head{font-weight:700;text-align:center;padding:4px 0 8px;border-bottom:2px solid var(--skd-line);margin-bottom:8px}
.skd-journal-col-debit .skd-journal-col-head{color:var(--skd-accent)}
.skd-journal-col-credit .skd-journal-col-head{color:#8a4b00}
.skd-journal-row{display:grid;grid-template-columns:1fr auto;gap:6px;align-items:center;padding:6px;margin:4px 0;border:2px solid transparent;border-radius:8px}
.skd-journal-row:has(.skd-journal-amt){grid-template-columns:minmax(0,1fr) 7.5em auto}
.skd-journal-row-active{border-color:var(--skd-accent);background:var(--skd-accent-bg)}
.skd-journal-acc{min-height:44px;padding:.4em .6em;border:1px solid var(--skd-line);border-radius:8px;background:var(--skd-bg);font-size:1rem;color:var(--skd-fg);text-align:left;cursor:pointer;min-width:0;overflow-wrap:anywhere}
.skd-journal-acc-empty{color:var(--skd-muted);border-style:dashed}
.skd-journal-acc:focus-visible,.skd-word:focus-visible,.skd-journal-amt:focus-visible{outline:3px solid #f5a623;outline-offset:2px}
.skd-journal-amt{min-height:44px;width:100%;box-sizing:border-box;padding:.3em .5em;border:1px solid var(--skd-line);border-radius:8px;font-size:1.05rem;text-align:right;font-variant-numeric:tabular-nums}
.skd-journal-del{min-width:32px;min-height:32px;border:0;background:transparent;color:var(--skd-muted);font-size:1.2rem;cursor:pointer}
.skd-journal-add{margin-top:4px}
.skd-journal-total{margin-top:8px;padding-top:6px;border-top:1px dashed var(--skd-line);text-align:right;font-size:.95rem;color:var(--skd-muted);font-variant-numeric:tabular-nums;min-height:1.2em}
.skd-journal-noamount .skd-journal-total{display:none}
.skd-journal-words{margin:12px 0;padding:10px 12px;border:2px solid var(--skd-accent);border-radius:10px;background:var(--skd-bg)}
.skd-journal-words-head{font-size:.92rem;color:var(--skd-accent);font-weight:700;margin-bottom:6px}
.skd-journal-words-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.skd-word{min-height:40px;padding:.3em .8em;border:1px solid var(--skd-line);border-radius:999px;background:#f7f9fb;font-size:.98rem;color:var(--skd-fg);cursor:pointer}
.skd-word:hover{background:var(--skd-accent-bg)}
.skd-word-selected{border-color:var(--skd-accent);background:var(--skd-accent-bg);font-weight:700}
.skd-journal-foot{display:flex;flex-direction:column;gap:8px;align-items:stretch;margin-top:10px}
.skd-journal-balance{text-align:right;font-size:.95rem;color:var(--skd-ok);font-variant-numeric:tabular-nums;min-height:1.2em}
.skd-journal-balance-ng{color:var(--skd-ng)}
.skd-journal-submit:disabled{opacity:.45;cursor:not-allowed}
/* 採点後の行 */
.skd-journal-row-ok{border-color:var(--skd-ok);background:var(--skd-ok-bg)}
.skd-journal-row-ng{border-color:var(--skd-ng);background:var(--skd-ng-bg)}
.skd-journal-row-label{grid-column:1/-1;font-size:.9rem;font-weight:700}
.skd-journal-row-ok .skd-journal-row-label{color:var(--skd-ok)}
.skd-journal-row-ng .skd-journal-row-label{color:var(--skd-ng)}
.skd-journal-row-ok .skd-journal-acc,.skd-journal-row-ng .skd-journal-acc,.skd-journal-row-ok .skd-journal-amt,.skd-journal-row-ng .skd-journal-amt{background:#fff;color:var(--skd-fg);opacity:1}
.skd-journal-msgs{margin:0 0 10px;padding-left:1.4em;color:var(--skd-ng);font-weight:700}
.skd-exp-head{font-weight:700;margin:4px 0 6px}
.skd-journal-table{width:100%;border-collapse:collapse;margin:0 0 12px;font-size:.98rem;font-variant-numeric:tabular-nums}
.skd-journal-table th,.skd-journal-table td{border:1px solid var(--skd-line);padding:6px 8px}
.skd-journal-table th{background:#f3f5f7;font-weight:700;text-align:center}
.skd-journal-table td.skd-num{text-align:right}
.skd-journal-table td:nth-child(2){border-right:2px solid #999}
.skd-journal-missing{background:var(--skd-warn-bg);color:#8a4b00;font-weight:700}
/* 解答にない行の札（v0.9.7）：科目名とは別の行に小さく出す。色だけでなく文字で示す */
.skd-journal-tag{display:block;width:max-content;margin-top:3px;padding:0 .5em;border:1px solid #c98a2b;border-radius:999px;background:#fff;color:#8a4b00;font-size:.78rem;font-weight:700;line-height:1.6}
.skd-question table,.skd-exp table{border-collapse:collapse;margin:8px 0;font-size:.95rem;background:#fff;max-width:100%}
.skd-question th,.skd-question td,.skd-exp th,.skd-exp td{border:1px solid var(--skd-line);padding:4px 8px;vertical-align:top}
.skd-question th,.skd-exp th{background:#f3f5f7;font-weight:700;text-align:center}
.skd-question td.skd-num,.skd-exp td.skd-num{text-align:right;font-variant-numeric:tabular-nums}
.skd-question{overflow-x:auto}
/* 設例（FP2級 実技）：問題文の上の枠。表は横にはみ出したら枠の中でスクロール */
.skd-case{margin:12px 0 0;padding:12px 16px;border:1px solid var(--skd-line);border-radius:10px;background:#fff;font-size:.98rem;line-height:1.75;overflow-x:auto}
.skd-case-head{font-weight:700;color:var(--skd-accent);margin:0 0 6px}
.skd-case table{border-collapse:collapse;margin:8px 0;font-size:.93rem;max-width:100%}
.skd-case th,.skd-case td{border:1px solid var(--skd-line);padding:4px 8px;vertical-align:top}
.skd-case th{background:#f3f5f7;font-weight:700;text-align:center}
.skd-case td.skd-num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
@media (max-width:560px){
  .skd-journal-words{position:fixed;left:0;right:0;bottom:0;z-index:60;margin:0;max-height:48vh;overflow:auto;border-radius:14px 14px 0 0;border-width:2px 0 0;box-shadow:0 -4px 16px rgba(0,0,0,.18);padding:12px 14px calc(12px + env(safe-area-inset-bottom))}
  .skd-journal-words:not([hidden])~.skd-journal-foot{padding-bottom:48vh}
}
.skd-app [hidden]{display:none!important}
.skd-journal-table th,.skd-journal-table td.skd-num,.skd-question td.skd-num,.skd-exp td.skd-num{white-space:nowrap}
.skd-journal-table{table-layout:auto}
/* ---- 計算問題 ---- */
.skd-calc{margin:8px 0}
.skd-calc-row{display:grid;grid-template-columns:1fr;gap:4px;padding:10px 12px;margin:6px 0;border:2px solid var(--skd-line);border-radius:10px;background:var(--skd-bg)}
@media (min-width:561px){.skd-calc-row{grid-template-columns:minmax(0,1fr) 15em;align-items:center}}
.skd-calc-label{font-weight:700}
.skd-calc-field{display:flex;align-items:center;gap:6px}
.skd-calc-input{min-height:44px;width:100%;max-width:14em;box-sizing:border-box;padding:.3em .6em;border:1px solid var(--skd-line);border-radius:8px;font-size:1.1rem;text-align:right;font-variant-numeric:tabular-nums}
.skd-calc-unit{white-space:nowrap;color:var(--skd-muted)}
.skd-calc-hint{margin:4px 0 10px}
.skd-calc-row-ok{border-color:var(--skd-ok);background:var(--skd-ok-bg)}
.skd-calc-row-ng{border-color:var(--skd-ng);background:var(--skd-ng-bg)}
.skd-calc-result-label{grid-column:1/-1;font-weight:700;font-size:.95rem}
.skd-calc-row-ok .skd-calc-result-label{color:var(--skd-ok)}.skd-calc-row-ng .skd-calc-result-label{color:var(--skd-ng)}
.skd-calc-answers{margin:0 0 10px;padding-left:1.4em}
/* ---- 形式から選ぶ（仕訳だけ・計算だけ） ---- */
.skd-kind-card{display:grid;grid-template-columns:1fr auto;gap:6px 10px;align-items:center}
.skd-kind-list{margin:8px 0 0;padding:0;list-style:none}
.skd-kind-list li{display:grid;grid-template-columns:1fr auto;gap:4px 10px;align-items:center;padding:8px 0;border-top:1px dashed var(--skd-line)}
.skd-kind-list .skd-muted{font-size:.9rem}
.skd-report{margin:2px 0 10px;text-align:right;font-size:.85rem}
.skd-report-link{color:var(--skd-muted);text-decoration:underline}
.skd-report-link:hover{color:var(--skd-accent)}
.skd-recommend .skd-row-between{gap:10px;flex-wrap:wrap}
/* 0.9.4 問題の図（問題文の直後・PCは最大640px・スマホは画面幅） */
.skd-figure{margin:12px auto 2px;max-width:640px;text-align:center}
.skd-figure img{display:block;width:100%;max-width:100%;height:auto;margin:0 auto;background:#fff;border-radius:4px}

/* 結果画面の「次にやること」（設定「結果画面で…」がオンのときだけ） */
.skd-next{margin:14px 0 18px;padding:14px;border:2px solid #1e73be;border-radius:12px;background:#f3f8fd}
.skd-next-lead{margin:0 0 10px;font-size:.95rem;color:#333}
.skd-next-ok{font-weight:700;color:#1a7f37}
.skd-btn-block{display:block;width:100%;margin:8px 0 0;box-sizing:border-box}
.skd-wrong-details{margin:8px 0 14px}
.skd-wrong-details>summary{cursor:pointer;padding:8px 0;font-weight:700}
/* 複数仕訳（小問）v0.9.6 */
.skd-journal-note{font-size:.95rem;background:var(--skd-warn-bg);border:1px solid #f0d58c;border-radius:8px;padding:8px 12px;margin:0 0 12px}
.skd-part-intro{font-size:.95rem;color:var(--skd-muted);margin:4px 0 8px}
.skd-part{border:1px solid var(--skd-line);border-radius:12px;padding:10px 10px 12px;margin:14px 0;background:#fafbfc}
.skd-part-head{display:flex;align-items:center;gap:8px;font-weight:700;margin:0 0 6px}
.skd-part-no{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;min-width:1.6em;height:1.6em;border-radius:6px;background:var(--skd-accent);color:#fff;font-size:.9rem}
.skd-part-label{min-width:0;overflow-wrap:anywhere}
.skd-part-badge{margin-left:auto;flex:0 0 auto;font-size:.95rem}
.skd-part-none{display:inline-flex;align-items:center;gap:8px;min-height:44px;margin:0 0 6px;font-size:.95rem;cursor:pointer}
.skd-part-none-cb{width:22px;height:22px;margin:0}
.skd-part-off .skd-journal-grid{opacity:.4}
.skd-part-ok{border-color:var(--skd-ok);background:var(--skd-ok-bg)}
.skd-part-ng{border-color:var(--skd-ng);background:var(--skd-ng-bg)}
.skd-part-ok .skd-part-badge{color:var(--skd-ok)}
.skd-part-ng .skd-part-badge{color:var(--skd-ng)}
.skd-part-msg{margin:8px 0 0;font-weight:700;font-size:.95rem}
.skd-part-ng .skd-part-msg{color:var(--skd-ng)}
.skd-part-ok .skd-part-msg{color:var(--skd-ok)}
.skd-exp-sub{font-weight:700;margin:10px 0 4px}
.skd-part-none-answer{margin:0 0 12px;padding:6px 8px;border:1px solid var(--skd-line);border-radius:6px}
.skd-journal-multi .skd-journal-balance{text-align:left}