/* Körkort B / Teoriprov B — arayüz biçimleri.
   Renkler brand/tokens.json'dan üretilen tokens.css'ten gelir; buraya hex
   yazılmaz. tokens.css index.html'de bu dosyadan ÖNCE yüklenir. */
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif}
button,input{font:inherit}
button{cursor:pointer}
a{color:inherit}
#app{min-height:100vh}
.shell{width:min(1180px,calc(100% - 32px));margin:0 auto}
.topbar{height:74px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px;font-weight:760;letter-spacing:-.02em}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--brand);display:grid;place-items:center;color:var(--on-brand);box-shadow:0 6px 16px color-mix(in srgb,var(--brand) 22%,transparent)}
.brand-mark svg{width:22px;height:22px}
.brand-sub{font-size:12px;color:var(--muted);font-weight:650;letter-spacing:.01em}
.nav-actions{display:flex;gap:8px}
.icon-btn,.ghost-btn,.secondary-btn,.primary-btn{border:0;border-radius:13px;transition:.18s ease}
.icon-btn{width:42px;height:42px;background:transparent;color:var(--text)}
.icon-btn:hover{background:var(--surface-2)}
.primary-btn{background:var(--brand);color:var(--on-brand);padding:13px 18px;font-weight:720;box-shadow:0 6px 16px color-mix(in srgb,var(--brand) 22%,transparent)}
.primary-btn:hover{transform:translateY(-1px);filter:brightness(.98)}
.secondary-btn{background:var(--surface-2);color:var(--text);padding:12px 16px;font-weight:700}
.ghost-btn{background:transparent;color:var(--muted);padding:10px 12px;font-weight:680}
.hero{padding:54px 0 36px;display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:end}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 11px;border-radius:999px;background:var(--brand-2);color:var(--brand-text);font-weight:740;font-size:13px}
.hero h1{font-size:clamp(38px,5vw,66px);line-height:1.02;letter-spacing:-.055em;margin:18px 0 16px;max-width:760px}
.hero p{font-size:18px;line-height:1.55;color:var(--muted);max-width:680px;margin:0}
.hero-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.hero-stat{display:flex;justify-content:space-between;align-items:flex-end;padding:14px 0;border-bottom:1px solid var(--line)}
.hero-stat:last-child{border-bottom:0}
.hero-stat strong{font-size:28px;letter-spacing:-.04em}
.hero-stat span{font-size:13px;color:var(--muted);font-weight:650}
.section{padding:24px 0 48px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:18px}
.section-head h2{margin:0;font-size:25px;letter-spacing:-.035em}
.section-head p{margin:5px 0 0;color:var(--muted);font-size:14px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.exam-card,.study-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px;transition:.18s ease;position:relative;overflow:hidden}
.exam-card:hover,.study-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--line-hover)}
.exam-card .index{font-size:12px;font-weight:800;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.exam-card h3,.study-card h3{font-size:18px;margin:12px 0 7px;letter-spacing:-.025em}
.exam-card p,.study-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.45}
.exam-meta{display:flex;gap:12px;margin-top:18px;color:var(--muted);font-size:12px;font-weight:650}
.score-pill{position:absolute;top:14px;right:14px;padding:6px 8px;border-radius:9px;background:var(--surface-2);font-size:12px;font-weight:760}
.score-pill.pass{background:var(--brand-2);color:var(--brand)}
.study-card{grid-column:span 2;min-height:170px;display:flex;flex-direction:column;justify-content:space-between}
.study-card.featured{background:var(--invert-bg);color:var(--invert-text);border-color:var(--invert-bg)}
.study-card.featured p{color:var(--invert-muted)}
.study-card.featured .secondary-btn{background:var(--surface);color:var(--text);align-self:flex-start}
.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:14px}
.cat-chip{padding:11px 10px;background:var(--surface-2);border-radius:12px;font-size:12px;font-weight:700;color:var(--muted)}
.footer{padding:28px 0 48px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);margin-top:22px;line-height:1.55}

.exam-layout{min-height:100vh;display:grid;grid-template-columns:280px 1fr}
.exam-side{background:var(--surface);color:var(--text);border-right:1px solid var(--line);padding:22px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.exam-side .brand-sub{color:var(--muted)}
.exam-side-header{display:flex;justify-content:space-between;align-items:center}
.timer{font-variant-numeric:tabular-nums;margin:30px 0 8px;font-size:36px;letter-spacing:-.05em;font-weight:780}
.timer-label{font-size:12px;color:var(--muted);font-weight:650}
.progress-label{font-size:12px;color:var(--muted);margin-top:22px}
.progress-bar{height:7px;background:var(--surface-2);border-radius:99px;overflow:hidden;margin:8px 0 16px}
.progress-fill{height:100%;background:var(--brand);width:0}
.question-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:7px;overflow:auto;padding-right:2px}
.qdot{aspect-ratio:1;border:0;border-radius:8px;background:var(--surface-2);color:var(--text);font-size:11px;font-weight:750}
.qdot.answered{background:var(--brand-2);color:var(--text)}
.qdot.flagged{outline:2px solid var(--warning);outline-offset:-2px}
.qdot.current{background:var(--brand);color:var(--on-brand)}
.side-bottom{margin-top:auto;display:grid;gap:8px}
.exam-main{min-width:0}
.exam-top{height:72px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,4vw,54px);background:var(--bar-bg);backdrop-filter:blur(16px);position:sticky;top:0;z-index:5}
.exam-top .small{font-size:13px;color:var(--muted);font-weight:680}
.exam-content{width:min(800px,calc(100% - 40px));margin:0 auto;padding:50px 0 130px}
.q-kicker{display:flex;align-items:center;justify-content:space-between;gap:14px;color:var(--muted);font-size:13px;font-weight:700}
.category-badge{padding:7px 10px;border-radius:999px;background:var(--surface-2)}
.flag-btn{border:0;background:transparent;color:var(--muted);font-weight:700;padding:7px 9px;border-radius:9px}
.flag-btn.on{background:var(--warning-bg);color:var(--warning)}
.question-title{font-size:clamp(25px,3vw,36px);line-height:1.28;letter-spacing:-.035em;margin:26px 0 28px}
.options{display:grid;gap:11px}
.option{border:1.5px solid var(--line);background:var(--surface);padding:16px;border-radius:16px;display:flex;align-items:flex-start;gap:13px;text-align:left;color:var(--text);line-height:1.45;transition:.15s ease}
.option:hover{border-color:var(--line-hover)}
.option.selected{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 20%,transparent)}
.option-letter{flex:0 0 28px;height:28px;border-radius:9px;background:var(--surface-2);display:grid;place-items:center;font-size:12px;font-weight:800}
.option.selected .option-letter{background:var(--brand);color:var(--on-brand)}
.exam-bottom{position:fixed;left:280px;right:0;bottom:0;border-top:1px solid var(--line);background:var(--bar-bg);backdrop-filter:blur(16px);padding:14px clamp(20px,4vw,54px);display:flex;justify-content:space-between;z-index:6}

.modal-backdrop{position:fixed;inset:0;background:color-mix(in srgb,var(--text) 45%,transparent);backdrop-filter:blur(5px);display:grid;place-items:center;padding:20px;z-index:20}
.modal{background:var(--surface);border-radius:22px;width:min(520px,100%);padding:24px;box-shadow:var(--shadow)}
.modal h3{margin:0 0 9px;font-size:24px;letter-spacing:-.035em}
.modal p{margin:0;color:var(--muted);line-height:1.5}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}

.results{padding:42px 0 70px}
.results-hero{display:grid;grid-template-columns:1fr .7fr;gap:20px}
.result-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:26px}
.result-status{font-size:13px;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.result-score{font-size:72px;line-height:1;letter-spacing:-.07em;font-weight:820;margin:16px 0 9px}
.result-score span{font-size:28px;color:var(--muted);font-weight:700}
.pass-text{color:var(--brand-text)}
.fail-text{color:var(--danger)}
.result-card h1{font-size:34px;letter-spacing:-.045em;margin:0 0 12px}
.result-card p{color:var(--muted);line-height:1.55;margin:0}
.breakdown{display:grid;gap:10px;margin-top:18px}
.break-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}
.break-label{font-size:13px;font-weight:670}
.break-score{font-size:13px;color:var(--muted);font-weight:730}
.review-list{display:grid;gap:10px;margin-top:18px}
.review-item{background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:15px}
.review-item summary{cursor:pointer;font-weight:720;line-height:1.4}
.review-item .explanation{color:var(--muted);font-size:13px;line-height:1.5;margin-top:12px}
.review-item.correct{border-left:4px solid var(--brand)}
.review-item.wrong{border-left:4px solid var(--danger)}
.review-item.unscored{opacity:.72}
.answer-line{font-size:13px;margin-top:10px}
.answer-line strong{font-weight:780}

.study-shell{padding-bottom:70px}
.study-toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:24px 0 14px}
.search{flex:1;min-width:220px;border:1px solid var(--line);border-radius:13px;background:var(--surface);padding:12px 14px;outline:none}
.search:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 20%,transparent)}
.filter{border:1px solid var(--line);background:var(--surface);padding:11px 12px;border-radius:13px;color:var(--text)}
.study-list{display:grid;gap:12px}
.study-q{background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:17px}
.study-q h3{font-size:17px;line-height:1.45;margin:7px 0 13px}
.study-q .option{padding:11px 12px;border-radius:12px;font-size:14px}
.study-q.revealed .option.correct-answer{border-color:var(--brand);background:var(--brand-2)}
.explain{display:none;margin-top:12px;padding:13px;background:var(--surface-2);border-radius:12px;color:var(--muted);font-size:13px;line-height:1.5}
.study-q.revealed .explain{display:block}

@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:30px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .exam-layout{display:block}
  .exam-side{display:none}
  .exam-bottom{left:0}
  .results-hero{grid-template-columns:1fr}
}
@media(max-width:620px){
  .shell{width:min(100% - 22px,1180px)}
  .topbar{height:62px}
  .brand-sub{display:none}
  .hero h1{font-size:40px}
  .hero p{font-size:16px}
  .cards{grid-template-columns:1fr}
  .study-card{grid-column:span 1}
  .exam-content{width:calc(100% - 28px);padding-top:30px}
  .exam-top{height:60px;padding:0 14px}
  .exam-top .small:nth-child(2){display:none}
  .question-title{font-size:25px}
  .exam-bottom{padding:10px 14px}
  .result-score{font-size:60px}
}


.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.study-modes{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.study-mode{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:22px;cursor:pointer;transition:.18s ease;min-height:220px;display:flex;flex-direction:column;align-items:flex-start}
.study-mode:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.study-mode.primary-mode{background:var(--invert-bg);color:var(--invert-text);border-color:var(--invert-bg)}
.study-mode.primary-mode p{color:var(--invert-muted)}
.study-mode h3{font-size:24px;letter-spacing:-.035em;margin:28px 0 9px}
.study-mode p{color:var(--muted);font-size:14px;line-height:1.55;margin:0 0 28px}
.study-mode>span:last-child{margin-top:auto;font-size:13px;font-weight:800}
.mode-label{font-size:11px;letter-spacing:.1em;font-weight:850;color:var(--muted)}
.primary-mode .mode-label{color:var(--muted)}
.option.answer-correct{border-color:var(--brand);background:var(--brand-2)}
.option.answer-correct .option-letter{background:var(--brand);color:var(--on-brand)}
.option.answer-wrong{border-color:var(--danger);background:var(--danger-bg)}
.option.answer-wrong .option-letter{background:var(--danger);color:var(--on-danger)}
.option.answer-muted{opacity:.52}
.instant-feedback{margin-top:14px;border-radius:14px;padding:15px 16px}
.instant-feedback.is-right{background:var(--brand-2);color:var(--ok-text)}
.instant-feedback.is-wrong{background:var(--danger-bg);color:var(--bad-text)}
.feedback-head{font-size:17px;font-weight:820;margin-bottom:6px}
.feedback-answer{font-size:13px;margin-bottom:8px}
.feedback-why{font-size:13px;line-height:1.55}
.study-progress-line{font-size:13px;color:var(--muted);margin:4px 0 14px}
.browse-shell{padding-bottom:70px}
.browse-list{display:grid;gap:12px}
.browse-q{background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:18px}
.browse-q h3{font-size:17px;line-height:1.45;margin:9px 0 14px}
.browse-options{display:grid;gap:8px}
.browse-option{border:1px solid var(--line);border-radius:12px;padding:11px 12px;display:flex;align-items:center;gap:10px}
.browse-option.browse-correct{border-color:var(--brand);background:var(--brand-2)}
.browse-correct .option-letter{background:var(--brand);color:var(--on-brand)}
.correct-badge{margin-left:auto;background:var(--surface);color:var(--brand-text);border-radius:8px;padding:4px 7px;font-size:11px;font-weight:800}
.browse-explain{margin-top:12px;border-radius:12px;padding:12px 13px;background:var(--surface-2);color:var(--muted);font-size:13px;line-height:1.55}
.load-more{display:flex;justify-content:center;margin-top:18px}
button:disabled{cursor:default}
@media(max-width:760px){.study-modes{grid-template-columns:1fr}.hero-actions{flex-direction:column}.nav-actions{gap:0}.nav-actions .ghost-btn{padding:8px}.section-head{align-items:flex-start;flex-direction:column}}

/* ---- Mod seçimi (deneme başlangıcı) ---- */
.modal-note{margin-top:10px;font-size:13px;color:var(--muted)}
.mode-picker{display:grid;gap:10px;margin-top:18px}
.mode-pick{text-align:left;border:1.5px solid var(--line);background:var(--surface);border-radius:16px;padding:15px 16px;display:grid;gap:6px;color:var(--text);transition:.15s ease;cursor:pointer}
.mode-pick:hover{border-color:var(--brand);background:var(--brand-2)}
.mode-pick strong{font-size:16px;letter-spacing:-.02em}
.mode-pick span{font-size:13px;color:var(--muted);line-height:1.45}
.mode-pick em{font-style:normal;font-size:12px;font-weight:780;color:var(--brand-text)}

/* ---- Sınav ekranı: duraklatma, mod, canlı skor ---- */
.pause-btn{margin:10px 0 4px;width:100%;border:0;border-radius:12px;padding:11px;background:var(--surface-2);color:var(--text);font-weight:750;font-size:13px;cursor:pointer}
.pause-btn:hover{background:var(--line)}
.pause-btn.resumed{background:var(--brand);color:var(--on-brand)}
.timer.paused{opacity:.45}
.exam-top strong.paused{opacity:.45}
.mode-tag{font-size:11px;color:var(--muted);font-weight:680;line-height:1.5;margin:8px 0 4px}
.link-btn{display:block;margin-top:4px;background:none;border:0;padding:0;color:var(--brand-text);font-size:11px;font-weight:750;text-decoration:underline;cursor:pointer}
.instant-feedback .link-btn{color:inherit;opacity:.75;font-size:12px;margin-top:10px}
.live-stats{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0 14px}
.live-chip{background:var(--surface-2);color:var(--muted);border-radius:9px;padding:6px 9px;font-size:11px;font-weight:680}
.live-chip strong{font-size:13px;font-weight:820;color:#fff}
.live-chip.ok strong{color:var(--ok-text)}
.live-chip.bad strong{color:var(--bad-text)}
.qdot.ok{background:var(--success-bg);color:var(--ok-text)}
.qdot.bad{background:var(--danger-bg);color:var(--bad-text)}
.top-actions{display:flex;gap:6px}
.chip-btn{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:7px 13px;font-size:12px;font-weight:720;cursor:pointer}
.chip-btn:hover{border-color:var(--line-hover)}
.chip-btn.active{background:var(--invert-bg);color:var(--invert-text);border-color:var(--invert-bg)}
.shortcut-hint{font-size:11px;color:var(--muted);align-self:center;font-weight:650}
.pause-screen{width:min(620px,calc(100% - 40px));margin:0 auto;padding:90px 0;text-align:center}
.pause-screen h2{font-size:34px;letter-spacing:-.04em;margin:0 0 12px}
.pause-screen p{color:var(--muted);line-height:1.55;margin:0 auto 18px;max-width:420px}
.pause-meta{font-size:13px;font-weight:720;color:var(--muted);margin-bottom:22px}
.exam-content .instant-feedback{margin-top:20px;font-size:15px}
.feedback-head{font-weight:820;margin-bottom:6px}
.feedback-answer{font-size:14px;margin-bottom:6px}
.feedback-why{font-size:14px;line-height:1.55;opacity:.92}

/* ---- Performans panelleri ---- */
.perf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.perf-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px}
.perf-card.wide{grid-column:span 3}
.perf-num{font-size:38px;font-weight:820;letter-spacing:-.05em;line-height:1}
.perf-label{font-size:13px;font-weight:720;margin-top:6px}
.perf-sub{font-size:12px;color:var(--muted);margin-top:4px;line-height:1.5}
.cat-bar-row{display:grid;grid-template-columns:150px 1fr auto;gap:10px;align-items:center}
.cat-bar{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.cat-bar-fill{height:100%;border-radius:99px;background:var(--brand)}
.cat-bar-fill.mid{background:var(--brand);opacity:.7}
.cat-bar-fill.bad{background:var(--brand);opacity:.45}
.cat-bar-fill.bad{background:var(--danger)}
.hist-list{display:grid;gap:8px;margin-top:14px}
.hist-row{display:grid;grid-template-columns:1fr auto auto;gap:12px;align-items:center;font-size:13px;padding:8px 0;border-bottom:1px solid var(--line)}
.hist-row:last-child{border-bottom:0}
.hist-name{font-weight:720}
.hist-name em{font-style:normal;font-size:11px;color:var(--muted)}
.hist-score{font-weight:820}
.hist-score.ok{color:var(--brand-text)}
.hist-score.bad{color:var(--danger)}
.hist-meta{font-size:12px;color:var(--muted)}

/* ---- Sonuç ekranı ek ---- */
.result-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:22px 0 4px}
.result-stats div{background:var(--surface-2);border-radius:13px;padding:11px 12px;display:grid;gap:2px}
.result-stats strong{font-size:19px;font-weight:820;letter-spacing:-.03em}
.result-stats span{font-size:11px;color:var(--muted);font-weight:680}
.result-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.review-filters{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}

@media(max-width:900px){
  .perf-grid{grid-template-columns:1fr}
  .perf-card.wide{grid-column:span 1}
  .cat-bar-row{grid-template-columns:110px 1fr auto}
  .result-stats{grid-template-columns:repeat(2,1fr)}
  .shortcut-hint{display:none}
  .exam-bottom{gap:8px}
}
.flag-btn{display:inline-flex;align-items:center;gap:6px}
.flag-btn svg{width:16px;height:16px;flex:0 0 16px}

/* ---- Kaynak doğrulama kutuları ---- */
.source-box{margin-top:11px;display:grid;gap:6px;padding-top:10px;border-top:1px solid var(--hairline)}
.source-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;line-height:1.45}
.source-row a{text-decoration:underline;text-underline-offset:2px;opacity:.9}
.verified-tag{flex:0 0 auto;background:var(--tag-bg);color:var(--brand-text);border-radius:8px;padding:3px 7px;font-size:11px;font-weight:800;letter-spacing:.01em}
.instant-feedback .source-box{border-top-color:var(--hairline)}
.instant-feedback.is-wrong .verified-tag{background:var(--tag-bg-bad);color:var(--bad-text)}
.browse-explain .source-box{border-top-color:var(--line)}
.review-item .source-box{margin-top:10px;border-top-color:var(--line)}

/* ---- Metodoloji / kaynaklar ekranı ---- */
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.method-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px}
.method-card.wide{grid-column:span 2}
.method-card h3{margin:0 0 12px;font-size:17px;letter-spacing:-.03em}
.method-card ul{margin:0;padding-left:18px;display:grid;gap:9px}
.method-card li{font-size:13px;line-height:1.55;color:var(--muted)}
.method-card li strong{color:var(--text)}
@media(max-width:900px){.method-grid{grid-template-columns:1fr}.method-card.wide{grid-column:span 1}}

/* ---- Mobil / PWA ---- */
html{-webkit-text-size-adjust:100%}
body{padding-top:env(safe-area-inset-top)}
.option,.chip-btn,.qdot,.primary-btn,.secondary-btn,.ghost-btn{-webkit-tap-highlight-color:transparent}
.exam-top{padding-top:env(safe-area-inset-top);height:auto;min-height:60px}
.exam-bottom{padding-bottom:calc(14px + env(safe-area-inset-bottom))}
.mobile-nav-bar{display:none}
@media(max-width:900px){
  .mobile-nav-bar{display:flex;align-items:center;gap:10px;padding:10px clamp(14px,4vw,24px);
    border-bottom:1px solid var(--line);background:var(--surface)}
  .mobile-nav-bar .progress-bar{flex:1;margin:0;background:var(--surface-2)}
  .mobile-nav-bar .progress-fill{background:var(--brand)}
  .mobile-nav-bar .mini-stat{font-size:12px;font-weight:720;color:var(--muted);white-space:nowrap}
  .exam-content{padding-bottom:150px}
  .question-sheet{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:18px;max-height:46vh;overflow:auto}
  .question-sheet .qdot{background:var(--surface-2);color:var(--muted);padding:10px 0}
  .question-sheet .qdot.answered{background:var(--brand-2);color:var(--brand)}
  .question-sheet .qdot.ok{background:var(--brand);color:var(--on-brand)}
  .question-sheet .qdot.bad{background:var(--danger);color:var(--on-danger)}
  .question-sheet .qdot.current{outline:2px solid var(--text);outline-offset:-2px}
  .question-sheet .qdot.flagged{box-shadow:inset 0 0 0 2px var(--warning)}
  .modal{max-height:88vh;overflow:auto}
}
@media(max-width:620px){
  .exam-bottom .primary-btn,.exam-bottom .secondary-btn{padding:13px 16px}
  .study-q .option,.browse-option{font-size:14.5px}
  .study-toolbar{gap:8px}
  .search{min-width:100%}
  .filter{flex:1}
  .review-filters{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
  .review-filters .chip-btn{white-space:nowrap}
  .source-row{font-size:12.5px}
  .footer{padding-bottom:calc(48px + env(safe-area-inset-bottom))}
  .study-shell,.browse-shell{padding-bottom:calc(70px + env(safe-area-inset-bottom))}
}

/* ---- Mobil üst menü: tek satır, kırılma yok ---- */
.brand span,.nav-actions .ghost-btn{white-space:nowrap}
@media(max-width:760px){
  .topbar{height:auto;min-height:58px;padding:9px 0;gap:8px}
  .brand{gap:9px}
  .nav-actions{margin-left:auto;flex-wrap:nowrap;gap:2px}
  .nav-actions .ghost-btn{padding:9px 10px;font-size:14px;color:var(--text)}
}
@media(max-width:620px){
  .topbar>.ghost-btn:first-child{padding:4px}
  .brand-name{display:none}          /* dar ekranda yalnız amblem kalır */
  .nav-actions .ghost-btn{padding:0 10px;font-size:13.5px;min-height:42px;display:flex;align-items:center}
}

/* Koyu tema değişkenleri tokens.css'te. Burada yalnızca temaya özgü
   BİÇİM farkları kalır — renk değil, gölge yoğunluğu gibi şeyler. */
:root[data-theme="dark"] .score-pill.pass{color:var(--brand-text)}
:root[data-theme="dark"] .review-item.wrong{border-left-color:var(--danger)}
:root[data-theme="dark"] input,:root[data-theme="dark"] select{color:var(--text)}
:root[data-theme="dark"] .seg-btn.active{box-shadow:none;background:var(--surface)}
/* "Sistem" seçiliyken data-theme yoktur; cihaz koyudaysa aynı farklar uygulanır. */
@media(prefers-color-scheme:dark){
  :root:not([data-theme]) .score-pill.pass{color:var(--brand-text)}
  :root:not([data-theme]) .review-item.wrong{border-left-color:var(--danger)}
  :root:not([data-theme]) input,:root:not([data-theme]) select{color:var(--text)}
  :root:not([data-theme]) .seg-btn.active{box-shadow:none;background:var(--surface)}
}

/* Tema düğmesi */
.theme-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:42px;min-height:42px;padding:0 10px;color:var(--text)}
.theme-btn svg{width:19px;height:19px}
.theme-btn:hover{background:var(--surface-2)}

/* ---------- v2: görsel katmanı ---------- */
/* Görsel kartı iki temada da açık ("kâğıt"). Levhaların renkleri beyaz zemine
   göre tanımlı — koyu zeminde kırmızı levha okunmaz. Şemaların zemini de krem,
   bu yüzden kart koyu olsaydı görselin kenarında sert bir sınır kalırdı.
   Basılı malzeme gibi davranması bilinçli. */
.q-media{margin:0 0 18px;display:flex;justify-content:center;background:var(--paper);
  color:var(--on-paper);border:1px solid var(--line);border-radius:16px;padding:18px}
.q-media img{max-width:100%;height:auto;display:block}
.q-media-sign img{max-height:190px}
.q-media-diagram img{max-height:260px}
.q-media-photo img{max-height:340px;border-radius:10px}

/* Çok seçmeli soru. Asgari biçim — kalıcı bileşen yeni tasarım sistemiyle
   gelecek; buradaki amaç yalnızca işaretlenebilir şıkkın radyo düğmesinden
   ayırt edilebilmesi (köşeli işaret alanı) ve onay adımının görünmesi. */
.multi-hint{margin:0 0 12px;padding:10px 14px;border:1px dashed var(--line);
  border-radius:12px;background:var(--surface-2);color:var(--muted);font-size:.93rem;line-height:1.5}
.multi-hint strong{color:var(--text)}
.option-multi .option-letter{border-radius:6px}
.option-multi.selected .option-letter::after{content:"✓";margin-left:2px}
.check-btn{margin-top:14px}

/* Görsel yüklenemediğinde: kopuk resim yerine ne olduğunu söyleyen panel. */
.q-media-missing{flex-direction:column;gap:8px;text-align:center;border-style:dashed}
.q-media-missing .media-missing{margin:0;font-weight:600;color:var(--text)}
.q-media-missing .media-alt{margin:0;font-size:.92rem;line-height:1.5;color:var(--muted)}

/* Hazır olmayan fotoğraf/video: betimleme paneli. Video paneli tekrar tekrar açılabilir. */
.q-media-spec{margin:0 0 18px;border:1px dashed var(--line);border-radius:16px;
  background:var(--surface-2);overflow:hidden}
.q-media-spec>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px;
  flex-wrap:wrap;padding:13px 16px}
.q-media-spec>summary::-webkit-details-marker{display:none}
.spec-tag{font-size:.78rem;font-weight:700;letter-spacing:.02em;padding:4px 10px;border-radius:999px;
  background:var(--brand);color:#fff}
.spec-hint{font-size:.82rem;opacity:.7}
.spec-body{margin:0;padding:0 16px 16px;font-size:.93rem;line-height:1.6;opacity:.9}

/* ---------- v2: çeldirici gerekçesi ve kaynak maddesi ---------- */
.answer-why{margin:8px 0;padding:10px 13px;border-radius:11px;font-size:.92rem;line-height:1.55;
  background:var(--danger-bg);border:1px solid color-mix(in srgb,var(--danger) 35%,transparent)}
.source-locator{display:block;width:100%;font-size:.82rem;opacity:.72;margin-top:2px}

/* ---------- v2: ana sayfa bilgi kartları ---------- */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.info-card{border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:18px 20px}
.info-card h3{margin:0 0 8px;font-size:1rem}
.info-card p{margin:0;font-size:.92rem;line-height:1.6;opacity:.85}

/* ---------- v2: kaynak listesi ---------- */
.source-list{display:grid;gap:10px}
.source-item{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:14px 16px}

/* ---------- v2: uyarı notu ---------- */
.modal-warn{margin:10px 0;padding:11px 14px;border-radius:12px;font-size:.92rem;line-height:1.55;
  background:var(--warning-bg);border:1px solid color-mix(in srgb,var(--warning) 35%,transparent)}


/* ---------- v2: tab bar (4 ana sayfa) ---------- */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:20;display:grid;
  grid-template-columns:repeat(4,1fr);gap:2px;
  background:var(--bar-bg);backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  padding:6px 8px calc(6px + env(safe-area-inset-bottom));}
.tabbar .tab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  border:0;background:transparent;color:var(--muted);font-size:11px;font-weight:700;
  padding:7px 4px;border-radius:12px;min-height:52px;transition:.15s ease}
.tabbar .tab svg{width:22px;height:22px}
.tabbar .tab:hover{background:var(--surface-2)}
.tabbar .tab.active{color:var(--brand-text);background:var(--brand-2)}
.has-tabbar{padding-bottom:96px}

@media (min-width:860px){
  /* geniş ekranda tab bar üstte, içerik genişliğinde */
  .tabbar{position:sticky;top:0;bottom:auto;width:min(1180px,calc(100% - 32px));margin:0 auto 10px;
    grid-template-columns:repeat(4,max-content);gap:6px;justify-content:start;
    border-top:0;border-bottom:1px solid var(--line);padding:6px 0}
  .tabbar .tab{flex-direction:row;gap:8px;font-size:14px;min-height:44px;padding:9px 15px}
  .has-tabbar{padding-bottom:24px}
}

/* ---------- v2: ayar satırları ---------- */
.setting-list{display:grid;gap:10px}
.setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:15px 18px;text-align:left}
.setting-row>div:not(.seg){display:flex;flex-direction:column;gap:3px;min-width:0}
.setting-row strong{font-size:.98rem}
.setting-row span{font-size:.85rem;color:var(--muted);line-height:1.45}
.setting-row.as-link{cursor:pointer;color:var(--text);font:inherit;transition:.15s ease;margin:0 0 18px}
.setting-row.as-link:hover{border-color:var(--line-hover);background:var(--surface-2)}
.setting-row .chev{font-size:1.5rem;color:var(--muted);line-height:1}
.setting-row button[disabled]{opacity:.45;cursor:default}

/* segmentli seçim */
.seg{display:inline-flex;gap:3px;background:var(--surface-2);border-radius:12px;padding:3px;flex:0 0 auto}
.seg-btn{border:0;background:transparent;color:var(--muted);font-weight:700;font-size:.87rem;
  padding:8px 14px;border-radius:9px;transition:.15s ease;white-space:nowrap}
.seg-btn.active{background:var(--surface);color:var(--text);box-shadow:0 1px 3px color-mix(in srgb,var(--text) 10%,transparent)}