/* IELTS バンド診断（bandcheck.js）。スマートフォン第一（375px）。色は style.css の変数だけ（ライト／ダーク） */
.bc { display: grid; gap: 14px; }
.bc h1 { margin: 0; }
.bc h2 { margin: 0; font-size: 1.25rem; }
.bc-eyebrow { margin: 0; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.bc-progress { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin: 0; padding: 0; list-style: none; }
.bc-progress li { height: 26px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--line); display: grid; place-items: center; font: 600 12px/1 var(--font-num); color: var(--muted); }
.bc-progress li.done { background: var(--brand-soft); color: var(--brand); border-color: var(--brand-soft); }
.bc-progress li.on { background: var(--brand); color: var(--on-brand); border-color: var(--brand); }
.bc-progress li.hl:not(.on) { border-color: var(--accent); color: var(--accent); }
.bc-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.bc-head h2 { flex: 1 1 auto; }
.bc-time { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--muted); }
.bc-time .ico { width: 15px; height: 15px; }
.bc-passage { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; font-size: 15px; line-height: 1.65; }
.bc-passage h3 { margin: 0 0 6px; font-size: 1rem; }
.bc-passage p { margin: 0 0 8px; }
.bc-passage p:last-child { margin-bottom: 0; }
.bc-q { display: grid; gap: 4px; }
.bc-qno { margin: 0; font-size: 12px; color: var(--muted); font-weight: 700; }
.bc-q .trial-opts { margin: 6px 0; }
.bc-tfng { grid-template-columns: repeat(3, 1fr); }
.bc-tfng .trial-opt { justify-content: center; text-align: center; padding: 10px 6px; font-size: 13px; font-weight: 700; }
.bc-nav { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 4px; }
.bc-nav .btn { min-width: 132px; }
.bc-note { display: flex; gap: 6px; align-items: flex-start; margin: 0; padding: 8px 10px; border-radius: var(--radius-sm); background: var(--mark-soft); color: var(--fg); font-size: 13px; }
.bc-note .ico { flex: none; width: 16px; height: 16px; margin-top: 2px; color: var(--mark); }
.bc-hl { display: flex; gap: 8px; padding: 10px 12px; border-radius: var(--radius-sm); border: 1.5px solid var(--accent); background: var(--accent-soft); }
.bc-hl p { margin: 0; font-size: 14px; }
.bc-hl .ico { flex: none; width: 20px; height: 20px; color: var(--accent); }
.bc-skills { display: flex; flex-wrap: wrap; gap: 6px; }
.bc-skills span { padding: 3px 10px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); font-size: 12px; }
.bc-skills span.hl { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.bc-target { border: 0; padding: 0; margin: 0; }
.bc-target legend { font-weight: 700; margin-bottom: 6px; }
.bc-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.bc-chip { min-height: 40px; min-width: 52px; padding: 6px 12px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--surface); color: var(--fg); font: 600 14px/1 var(--font-num); cursor: pointer; }
.bc-chip.on { border-color: var(--brand); background: var(--brand); color: var(--on-brand); }
.bc-form { display: grid; gap: 6px; font-size: 15px; }
.bc-form p { margin: 0; }
.bc-form-title { font-weight: 700; font-size: 13px; letter-spacing: .02em; }
.bc-gaps { margin: 0; padding-left: 1.4em; display: grid; gap: 10px; }
.bc-gap { width: 9em; max-width: 60%; min-height: 40px; padding: 6px 8px; border-radius: 8px; border: 1.5px solid var(--line); background: var(--bg); color: var(--fg); font: inherit; }
.bc-gap.ok { border-color: var(--ok); background: var(--ok-soft); }
.bc-gap.ng { border-color: var(--ng); background: var(--ng-soft); }
.bc-ans { font-size: 13px; color: var(--ok); font-weight: 700; }
.bc-exp { display: flex; gap: 6px; margin: 0; font-size: 14px; }
.bc-exp .ico { flex: none; width: 16px; height: 16px; margin-top: 3px; }
.bc-playing { display: flex; align-items: center; gap: 8px; margin: 0; font-weight: 700; color: var(--brand); }
.bc-eq { display: inline-flex; gap: 3px; align-items: flex-end; height: 16px; }
.bc-eq i { width: 4px; background: var(--brand); border-radius: 2px; animation: bc-eq 0.9s ease-in-out infinite; }
.bc-eq i:nth-child(2) { animation-delay: .15s; }
.bc-eq i:nth-child(3) { animation-delay: .3s; }
@keyframes bc-eq { 0%, 100% { height: 4px; } 50% { height: 16px; } }
@media (prefers-reduced-motion: reduce) { .bc-eq i { animation: none; height: 10px; } }
.bc-script { white-space: pre-wrap; font-size: 14px; }
.bc-prompt { font-weight: 700; display: block; }
.bc textarea { width: 100%; box-sizing: border-box; min-height: 88px; padding: 10px; border-radius: var(--radius-sm); border: 1.5px solid var(--line); background: var(--surface); color: var(--fg); font: inherit; font-size: 16px; }
.bc-count { margin: -6px 0 0; text-align: right; font-size: 13px; color: var(--muted); }
.bc-checks h4 { margin: 0 0 6px; }
.bc-checks ul { list-style: none; margin: 0 0 10px; padding: 0; display: grid; gap: 4px; }
.bc-checks li { display: flex; gap: 6px; align-items: flex-start; font-size: 14px; }
.bc-checks li .ico { flex: none; width: 16px; height: 16px; margin-top: 3px; }
.bc-checks li.ok .ico { color: var(--ok); }
.bc-checks li.ng .ico { color: var(--ng); }
.bc-checks .check { display: flex; gap: 8px; align-items: flex-start; margin-bottom: 6px; font-size: 14px; }
.bc-model { margin: 0; padding: 8px 10px; border-left: 3px solid var(--brand); background: var(--brand-soft); border-radius: 6px; font-size: 15px; }
.bc-cue { display: grid; gap: 6px; }
.bc-cue .chip { justify-self: start; }
.bc-timer { margin: 0; text-align: center; font-size: 1.25rem; font-weight: 700; color: var(--accent); }
.bc-result { display: grid; gap: 14px; }
.bc-score { display: grid; gap: 8px; }
.bc-score-k { margin: 0; font-weight: 700; color: var(--muted); }
.bc-band { display: flex; align-items: center; gap: 10px; margin: 0; }
.bc-band b { font: 800 3rem/1 var(--font-num); color: var(--brand); }
.bc-gap-line { margin: 0; font-weight: 700; }
.bc-bars { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 6px; }
.bc-bar { display: grid; grid-template-columns: 6.5em 1fr auto; gap: 8px; align-items: center; font-size: 13px; }
.bc-bar-track { height: 8px; border-radius: 8px; background: var(--surface-2); overflow: hidden; }
.bc-bar-track i { display: block; height: 100%; background: var(--brand); border-radius: 8px; }
.bc-bar.weak .bc-bar-track i { background: var(--accent); }
.bc-bar.weak .bc-bar-k { color: var(--accent); font-weight: 700; }
.bc-bar-v { font-weight: 700; text-align: right; max-width: 10em; }
.bc-bar.muted .bc-bar-v { font-weight: 400; color: var(--muted); font-size: 12px; font-family: var(--font); }
.bc-weak { display: flex; gap: 6px; margin: 0; font-weight: 700; }
.bc-weak .ico { flex: none; width: 18px; height: 18px; color: var(--accent); }
.bc-ctas { display: grid; gap: 8px; }
.bc-ctas .lp-note { margin: 0; }
.bc-offer { display: flex; gap: 8px; align-items: flex-start; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--accent-soft); }
.bc-offer p { margin: 0; font-size: 14px; }
.bc-offer .ico { flex: none; width: 20px; height: 20px; color: var(--accent); }
.bc-links { margin: 0; }
@media (max-width: 380px) {
  .bc-tfng .trial-opt { font-size: 12px; }
  .bc-bar { grid-template-columns: 5.8em 1fr auto; }
}
/* 国内 5 試験の 3 分診断（quickcheck.js）。bc-* を共用し、6 区切り・札・科目の線だけ足す */
.qc .bc-progress { grid-template-columns: repeat(6, 1fr); gap: 4px; }
.qc .bc-progress li { font: 600 11px/1 var(--font); white-space: nowrap; overflow: hidden; padding: 0 2px; }
.qc-top { display: flex; align-items: center; gap: 8px; }
.qc-back { font-size: 1.25rem; min-width: 44px; min-height: 44px; text-decoration: none; }
.qc-subj { font-weight: 700; color: var(--brand); }
.qc-q .trial-q { margin-top: 0; font-size: 16px; line-height: 1.7; }
.qc-q .trial-opt { min-height: 44px; }
.qc-days { display: inline-flex; align-items: center; gap: 4px; margin: 0; font-weight: 700; color: var(--accent); }
.qc-days .ico { width: 16px; height: 16px; }
.bc-score .qc-score { margin: 0; font: 800 1.75rem/1.25 var(--font-num); color: var(--brand); }
.qc-track { position: relative; overflow: visible; }
.qc-track i { border-radius: 8px; }
.qc-line { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--fg); opacity: .55; border-radius: 1px; }
.qc .bc-bar-v .ico { width: 14px; height: 14px; vertical-align: -2px; }
.qc .bc-bar.qc-under .bc-bar-v { color: var(--ng); }
.qc .bc-bar { grid-template-columns: 4.5em 1fr auto; }
.qc-per { margin: 0; }
.qc .bc-weak > span { flex: 1 1 auto; min-width: 0; }
.qc-notes { font-weight: 400; }
.qc-review summary { cursor: pointer; }
.qc-review > ol { margin: 8px 0 0; padding-left: 1.2em; display: grid; gap: 12px; }
.qc-review li p { margin: 0 0 4px; font-size: 14px; }
.qc-rq { display: flex; gap: 6px; }
.qc-rq .ico { flex: none; width: 16px; height: 16px; margin-top: 3px; }
.qc-review li.ok .qc-rq .ico { color: var(--ok); }
.qc-review li.ng .qc-rq .ico { color: var(--ng); }
.qc-ra { font-weight: 700; }
.qc-choices { margin: 4px 0 0; padding-left: 1.3em; font-size: 13px; color: var(--muted); }
@media (max-width: 380px) {
  .qc .bc-bar { grid-template-columns: 4em 1fr auto; }
}