/* Tokyo Taxi Exam v5 mobile-first information architecture */
body{padding-bottom:84px}.v5-app{max-width:760px;padding-top:12px}.v5-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.brand-button{border:0;background:transparent;color:#fff;display:flex;align-items:center;gap:10px;padding:0;text-align:left;cursor:pointer}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,#315f99,#1d355d);font-weight:900;font-size:19px;box-shadow:0 8px 24px rgba(32,71,120,.25)}.brand-button>span:last-child{display:grid;gap:1px}.brand-button strong{font-size:14px;letter-spacing:.08em}.brand-button small{font-size:10px;color:var(--muted)}.v5-top .lang-switch{display:flex;gap:4px}.v5-top .lang-switch button{border:1px solid var(--line);background:#111a2c;color:var(--muted);border-radius:9px;padding:7px 8px;font-size:11px}.v5-top .lang-switch button.active{color:#fff;border-color:#5576a6;background:#1c3153}

.eyebrow{display:block;color:#80a9df;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}.home-summary{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:8px;margin-bottom:10px}.home-summary>div{background:rgba(18,26,45,.96);border:1px solid var(--line);border-radius:14px;padding:12px}.home-summary>div:first-child strong{display:flex;align-items:baseline;gap:4px;font-size:26px}.home-summary>div:first-child strong span{font-size:11px;color:var(--muted);font-weight:600}.home-summary>div:not(:first-child){display:grid;align-content:center;gap:4px}.home-summary>div:not(:first-child) span{font-size:10px;color:var(--muted)}.home-summary>div:not(:first-child) b{font-size:19px}

.resume-card{width:100%;position:relative;text-align:left;border:1px solid #456d9d;background:linear-gradient(135deg,#1b3154,#234e81);color:#fff;border-radius:18px;padding:16px 48px 16px 16px;display:grid;gap:3px;cursor:pointer;box-shadow:0 10px 30px rgba(13,43,79,.24);margin-bottom:20px}.resume-card strong{font-size:18px}.resume-card small{color:#c4d7f2;font-size:11px;line-height:1.5}.resume-card i,.exam-entry .entry-arrow,.review-strip i,.mock-card i,.category-list i,.menu-list i,.source-note i,.review-main-card i{position:absolute;right:16px;top:50%;transform:translateY(-50%);font-style:normal;font-size:26px;color:#8eabd0}.resume-kicker{width:max-content;padding:3px 7px;border-radius:999px;background:rgba(255,255,255,.1);font-size:9px;font-weight:850;letter-spacing:.08em}

.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:18px 2px 10px}.section-heading h1,.section-heading h2,.section-heading h3{margin:0}.section-heading h1{font-size:22px}.section-heading h3{font-size:16px}.section-heading p{margin:3px 0 0;color:var(--muted);font-size:11px}.section-heading.compact{margin-top:22px;align-items:center}.text-button{border:0;background:transparent;color:#91baf0;padding:6px;font-size:12px;cursor:pointer}

.exam-entry-list{display:grid;gap:9px}.exam-entry{position:relative;width:100%;display:grid;grid-template-columns:46px 1fr 24px;align-items:center;gap:12px;text-align:left;border:1px solid var(--line);border-radius:17px;background:#121d33;color:#fff;padding:14px 12px;cursor:pointer}.exam-entry.primary-entry{border-color:#42699c;background:linear-gradient(135deg,#162640,#15243d)}.entry-icon{width:44px;height:44px;border-radius:13px;background:#1b2b48;display:grid;place-items:center;font-size:18px;font-weight:900;color:#a9caff}.primary-entry .entry-icon{background:#274b79;color:#d8e9ff}.entry-copy{display:grid;gap:5px;min-width:0}.entry-copy strong{font-size:15px}.entry-copy small{font-size:11px;line-height:1.35;color:var(--muted)}.exam-entry .entry-arrow{position:static;transform:none;text-align:right}

.review-strip{position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);background:#111a2d;color:#fff;border-radius:16px;padding:13px 44px 13px 14px;margin-top:12px;cursor:pointer;text-align:left}.review-strip span{display:flex;align-items:baseline;gap:5px}.review-strip span b{font-size:18px}.review-strip span small{font-size:11px;color:var(--muted)}.review-strip>strong{font-size:12px;color:#9dc1f1}

.seo-disclosure{margin-top:22px;border-top:1px solid rgba(67,88,126,.42);padding-top:10px;color:var(--muted)}.seo-disclosure summary{font-size:11px;cursor:pointer;padding:8px 2px}.seo-disclosure .seo-intro{padding:4px 0 12px}.seo-disclosure h2{font-size:15px;color:#d9e4f6}.seo-disclosure p{font-size:11px;line-height:1.6}

.page-head{margin-bottom:14px}.page-head .back-link{border:0;background:transparent;color:#9fc5f5;padding:4px 0 10px;cursor:pointer;font-size:12px}.page-head h2{font-size:24px;margin:0}.page-head p{color:var(--muted);font-size:11px;line-height:1.5;margin:5px 0 0}.page-progress{display:flex;align-items:baseline;gap:6px;margin-top:9px}.page-progress span{font-size:15px;font-weight:800}.page-progress small{font-size:10px;color:var(--muted)}

.stage-card{background:#121d33;border:1px solid var(--line);border-radius:18px;padding:15px}.section-label{font-size:12px;color:#c8d6ec;font-weight:750;margin-bottom:10px}.segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;padding:4px;background:#0d1627;border:1px solid #202f49;border-radius:13px}.segmented button{border:0;background:transparent;color:var(--muted);padding:10px 6px;border-radius:10px;font-size:12px;font-weight:700;cursor:pointer}.segmented button.active{background:#254772;color:#fff;box-shadow:0 4px 12px rgba(0,0,0,.18)}.stage-counts{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:10px}.stage-counts span{padding:9px;background:#0e182a;border-radius:10px;text-align:center}.stage-counts b{display:block;font-size:16px}.stage-counts small{font-size:9px;color:var(--muted)}

.quick-practice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.quick-practice-grid.two{grid-template-columns:repeat(2,1fr)}.quick-practice-grid button{border:1px solid #3c5f8c;background:#173156;color:#fff;border-radius:16px;padding:15px 12px;display:grid;grid-template-columns:auto 1fr;align-items:baseline;column-gap:5px;row-gap:3px;text-align:left;cursor:pointer}.quick-practice-grid button.secondary{background:#121d33;border-color:var(--line)}.quick-practice-grid strong{font-size:24px}.quick-practice-grid span{font-size:12px}.quick-practice-grid small{grid-column:1/-1;color:#a9bdd9;font-size:10px}

.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.topic-card{border:1px solid var(--line);background:#121d33;color:#fff;border-radius:14px;padding:12px;text-align:left;cursor:pointer;display:grid;gap:7px}.topic-card strong{font-size:12px;line-height:1.4}.topic-card span{display:flex;justify-content:space-between;color:var(--muted);font-size:10px}.topic-card i{font-style:normal;color:#8db8ef}

.source-note{position:relative;width:100%;border:1px solid var(--line);background:#101a2c;color:#fff;border-radius:15px;padding:13px 42px 13px 13px;text-align:left;margin-top:14px;cursor:pointer}.source-note span{display:grid;gap:4px}.source-note strong{font-size:12px}.source-note small{font-size:10px;color:var(--muted);line-height:1.45}

.mock-card{position:relative;width:100%;border:1px solid #6a6033;background:linear-gradient(135deg,#272719,#322e18);color:#fff;border-radius:18px;padding:18px 50px 18px 17px;text-align:left;cursor:pointer}.mock-kicker{font-size:9px;color:#f4dc86;font-weight:800;letter-spacing:.08em}.mock-card>strong{display:block;font-size:34px;margin:3px 0}.mock-card>strong small{font-size:13px}.mock-card p{margin:0;color:#c9c1a2;font-size:11px}.category-list,.menu-list{display:grid;gap:8px}.category-list button,.menu-list button{position:relative;width:100%;border:1px solid var(--line);background:#121d33;color:#fff;border-radius:14px;padding:13px 42px 13px 14px;text-align:left;cursor:pointer}.category-list span,.menu-list span{display:grid;gap:3px}.category-list strong,.menu-list strong{font-size:14px}.category-list small,.menu-list small{font-size:10px;color:var(--muted)}.chip-row{display:flex;gap:8px;flex-wrap:wrap}.chip-row button{border:1px solid var(--line);background:#142039;color:#fff;border-radius:12px;padding:10px 13px;cursor:pointer;font-size:12px}

.quiz-exit{border:0;background:transparent;color:#a8c8f2;font-size:24px;line-height:1;padding:0 6px 0 0}.quiz-head{align-items:center}.answer-source{margin-top:10px;padding-top:8px;border-top:1px solid rgba(255,255,255,.12);font-size:10px;line-height:1.5}

.review-main-card{position:relative;width:100%;border:1px solid #456d9d;background:linear-gradient(135deg,#173154,#204b7f);color:#fff;border-radius:18px;padding:16px 44px 16px 16px;text-align:left;cursor:pointer}.review-main-card span{display:grid;gap:5px}.review-main-card small{font-size:10px;color:#bdd3f0}.review-main-card strong{font-size:28px}.review-main-card em{font-style:normal;font-size:12px;margin-left:4px}.review-shortcuts{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:9px 0 14px}.review-shortcuts button{border:1px solid var(--line);background:#121d33;color:#fff;border-radius:14px;padding:13px;text-align:left;display:grid;gap:4px;cursor:pointer}.review-shortcuts b{font-size:19px}.review-shortcuts span{font-size:10px;color:var(--muted)}

.my-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:10px}.my-stats div{background:#121d33;border:1px solid var(--line);border-radius:14px;padding:12px;text-align:center}.my-stats b{display:block;font-size:18px}.my-stats span{font-size:9px;color:var(--muted)}

.bottom-nav{position:fixed;z-index:60;left:50%;bottom:0;transform:translateX(-50%);width:min(760px,100%);height:72px;padding:7px max(12px,env(safe-area-inset-left)) max(7px,env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(4,1fr);background:rgba(9,15,28,.94);backdrop-filter:blur(16px);border-top:1px solid rgba(80,104,147,.35)}.bottom-nav button{border:0;background:transparent;color:#7689a8;display:grid;place-items:center;align-content:center;gap:2px;cursor:pointer}.bottom-nav button span{font-size:20px;line-height:1}.bottom-nav button small{font-size:9px}.bottom-nav button.active{color:#9fc7ff}.bottom-nav button.active span{transform:translateY(-1px)}body.quiz-open .bottom-nav{display:none}

.sheet-backdrop{position:fixed;z-index:100;inset:0;background:rgba(2,6,14,.64);display:flex;align-items:flex-end;justify-content:center;padding-top:50px}.bottom-sheet{width:min(760px,100%);max-height:88vh;overflow:auto;background:#111a2c;border:1px solid #334666;border-bottom:0;border-radius:22px 22px 0 0;padding:8px 16px calc(16px + env(safe-area-inset-bottom));box-shadow:0 -20px 50px rgba(0,0,0,.45)}.sheet-handle{width:42px;height:4px;border-radius:99px;background:#4a5974;margin:2px auto 10px}.sheet-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.sheet-head h3{margin:0;font-size:21px}.sheet-head>button{border:1px solid var(--line);background:#17243b;color:#fff;border-radius:999px;width:34px;height:34px;font-size:19px}.filter-group{display:grid;gap:7px;margin-top:18px}.filter-group>strong{font-size:12px;color:#cbd8ed;margin-bottom:1px}.filter-group label{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:12px;background:#10192a;padding:11px 12px;font-size:12px;cursor:pointer}.filter-group input{accent-color:#6fa8f7}.sheet-result{display:flex;align-items:baseline;justify-content:flex-end;gap:4px;margin:14px 2px 8px;color:var(--muted);font-size:11px}.sheet-result b{font-size:18px;color:#fff}.sheet-actions{display:grid;grid-template-columns:1fr 2fr;gap:8px;position:sticky;bottom:-1px;background:#111a2c;padding-top:8px}.sheet-actions button{border-radius:13px;padding:12px;border:1px solid var(--line);font-weight:750}.sheet-actions .ghost{background:#151f34;color:#fff}.sheet-actions .primary{background:#28558b;color:#fff;border-color:#4d78ad}

@media(max-width:520px){
  .v5-app{padding-left:12px;padding-right:12px}.home-summary{grid-template-columns:1.25fr 1fr 1fr}.home-summary>div{padding:10px}.home-summary>div:first-child strong{font-size:23px}.section-heading h1{font-size:20px}.exam-entry{grid-template-columns:42px 1fr 20px;padding:13px 11px}.entry-icon{width:40px;height:40px}.topic-grid{grid-template-columns:1fr 1fr}.page-head h2{font-size:22px}.question{font-size:20px}
}
@media(min-width:700px){.topic-grid{grid-template-columns:repeat(3,1fr)}.quick-practice-grid{grid-template-columns:repeat(4,1fr)}}


/* v6 quiz ergonomics: one stable thumb target, no layout jump after answering */
body.quiz-open:not(.quiz-result-mode) .quiz-card{padding-bottom:104px}
body.quiz-open:not(.quiz-result-mode) .quiz-nav{
  position:fixed;z-index:58;left:50%;bottom:max(14px,env(safe-area-inset-bottom));
  transform:translateX(-50%);width:min(660px,calc(100% - 56px));
  display:flex;gap:8px;padding:8px;border:1px solid rgba(74,103,148,.6);
  border-radius:16px;background:rgba(12,21,37,.94);backdrop-filter:blur(16px);
  box-shadow:0 12px 34px rgba(0,0,0,.38)
}
body.quiz-open:not(.quiz-result-mode) .quiz-nav .next{display:block!important;margin:0;min-height:54px}
body.quiz-open:not(.quiz-result-mode) .quiz-nav .smallbtn{min-height:54px}
body.quiz-open:not(.quiz-result-mode) .quiz-nav .next:disabled{opacity:.42;cursor:not-allowed}
body.quiz-open:not(.quiz-result-mode) .quiz-nav .next:disabled:active{transform:none}
body.quiz-result-mode .quiz-nav{display:none!important}
body.quiz-result-mode .answers{display:none!important}
body.quiz-result-mode .quiz-card{padding-bottom:18px}
body.quiz-result-mode .question{min-height:0;display:block}
body.quiz-result-mode .question-toolbar{margin-bottom:8px}

.result-panel{display:block!important}
.result-actions-stack{display:grid;grid-template-columns:1fr;gap:8px;margin-top:12px}
.result-actions-stack .smallbtn{min-height:48px;width:100%;font-weight:750}
.exam-review-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}
.exam-review-actions .smallbtn{min-height:50px;line-height:1.35}
.exam-note{margin-top:12px;color:#c4d1e5;font-size:12px}

.exam-review-screen{width:100%}
.review-filter-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:2px 0 12px;padding:4px;border:1px solid var(--line);background:#0c1526;border-radius:13px}
.review-filter-tabs button{border:0;border-radius:9px;background:transparent;color:var(--muted);padding:10px 8px;font-size:12px;font-weight:750}
.review-filter-tabs button.active{background:#274a77;color:#fff}
.exam-review-list{display:grid;gap:10px}
.exam-review-item{border:1px solid var(--line);border-radius:15px;padding:13px;background:#101a2d;text-align:left}
.exam-review-item.correct{border-color:#2e6549;background:#10291f}
.exam-review-item.wrong{border-color:#74414b;background:#2a171d}
.review-item-head{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;margin-bottom:9px;color:var(--muted);font-size:10px}
.review-item-head span:nth-child(2){text-align:center}.review-item-head b{font-size:16px}
.exam-review-item.correct .review-item-head b{color:#6fe4a3}.exam-review-item.wrong .review-item-head b{color:#ff8390}
.review-question{font-size:16px;font-weight:750;line-height:1.55;color:#fff}
.review-answer-row{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:11px}
.review-answer-row span{display:flex;align-items:center;justify-content:space-between;gap:8px;border:1px solid rgba(95,119,160,.32);border-radius:10px;padding:8px 10px;color:#b8c6dc;font-size:11px}
.review-answer-row b{color:#fff;font-size:17px}
.exam-review-item p{margin:10px 0 0;color:#d7e0ee;font-size:12px;line-height:1.55}
.exam-review-item>small{display:block;margin-top:9px;padding-top:8px;border-top:1px solid rgba(255,255,255,.08);color:#8292ad;font-size:10px;line-height:1.45}
.review-back-result{width:100%;margin-top:12px;min-height:50px;border:1px solid #43638f;border-radius:13px;background:#172b49;color:#fff;font-weight:750}

@media(max-width:520px){
  body.quiz-open:not(.quiz-result-mode) .quiz-nav{width:calc(100% - 40px);bottom:max(10px,env(safe-area-inset-bottom));padding:7px}
  body.quiz-open:not(.quiz-result-mode) .quiz-card{padding-bottom:96px}
  .exam-review-actions{grid-template-columns:1fr}
  .review-answer-row{grid-template-columns:1fr}
}


/* v7 page IDs + feedback */
.header-actions{display:flex;align-items:center;gap:7px}
.feedback-help-btn{width:38px;height:38px;border:1px solid #3b5277;border-radius:12px;background:#111b30;color:#a8c9f3;font-size:18px;font-weight:850;cursor:pointer;display:grid;place-items:center;box-shadow:0 5px 16px rgba(0,0,0,.18)}
.feedback-help-btn:active{transform:scale(.97)}
.feedback-sheet{padding-bottom:calc(18px + env(safe-area-inset-bottom))}
#taxi-feedback-form{display:grid;gap:14px}
.feedback-page-card{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:3px 10px;border:1px solid #36547d;background:#13233c;border-radius:14px;padding:12px}
.feedback-page-card>span{font-size:10px;color:#8ea7c9;text-transform:uppercase;letter-spacing:.06em}
.feedback-page-card>strong{justify-self:end;font-size:13px;color:#d8e9ff;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.feedback-page-card>small{grid-column:1/-1;color:#a9bad2;font-size:10px;line-height:1.45;overflow-wrap:anywhere}
.feedback-type-group{border:0;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:7px}
.feedback-type-group legend{grid-column:1/-1;width:100%;padding:0 0 4px;color:#cad7eb;font-size:12px;font-weight:750}
.feedback-type-group label{position:relative;display:flex;align-items:center;justify-content:center;min-height:44px;border:1px solid var(--line);border-radius:12px;background:#101a2d;color:#c8d5e8;font-size:11px;cursor:pointer;text-align:center;padding:8px}
.feedback-type-group input{position:absolute;opacity:0;pointer-events:none}
.feedback-type-group label:has(input:checked){border-color:#5e8cca;background:#1d3a62;color:#fff;box-shadow:inset 0 0 0 1px rgba(143,190,255,.18)}
.feedback-description-label{font-size:12px;color:#cad7eb;font-weight:750;margin-bottom:-7px}
#feedback-description{width:100%;resize:vertical;min-height:112px;max-height:260px;border:1px solid var(--line);border-radius:13px;background:#0e1728;color:#fff;padding:12px;line-height:1.55;outline:none}
#feedback-description:focus{border-color:#5d83bd;box-shadow:0 0 0 3px rgba(118,169,255,.12)}
#feedback-description::placeholder{color:#657895}
.feedback-auto-meta{display:grid;gap:4px;border:1px solid rgba(52,72,105,.72);background:#0d1627;border-radius:13px;padding:11px 12px}
.feedback-auto-meta strong{font-size:11px;color:#d0dced}
.feedback-auto-meta span{font-size:10px;color:#9fb0ca;line-height:1.45}
.feedback-auto-meta small{font-size:9px;color:#70819d;line-height:1.45}
.feedback-submit-button{min-height:50px;border:1px solid #4e78ad;border-radius:13px;background:#28558b;color:#fff;font-weight:800;cursor:pointer}
.feedback-submit-button:disabled{opacity:.55;cursor:wait}
.feedback-submit-status{min-height:0;font-size:11px;line-height:1.4}
.feedback-submit-status.bad{color:#ff9ca5}
.feedback-submit-status.ok{color:#79dba4}
.feedback-success{display:grid;gap:11px;text-align:center;padding:12px 4px 6px}
.feedback-success>span{font-size:12px;color:#9fb1ca}
.feedback-success>strong{font-size:20px;color:#fff;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;overflow-wrap:anywhere}
.feedback-success>p{margin:0;color:#aab9cf;font-size:11px;line-height:1.55}
.feedback-success .row{justify-content:center}
@media(max-width:520px){
  .v5-top{align-items:center}
  .brand-button strong{font-size:13px}
  .brand-button small{font-size:9px}
  .header-actions{gap:5px}
  .feedback-help-btn{width:36px;height:36px;border-radius:11px}
  .feedback-type-group{grid-template-columns:repeat(2,1fr)}
}