.vc-app{font-size:16px;line-height:1.6;min-width:0}.vc-title,.vc-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.vc-title h2{font-size:28px;margin:8px 0}.vc-title label{min-width:130px}.vc-eyebrow{font-size:12px;letter-spacing:normal;color:var(--accent);font-weight:bold}.vc-badge{display:inline-block;border-radius:30px;background:var(--soft);color:var(--accent);padding:4px 12px;font-size:14px;white-space:nowrap}.vc-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0 16px}.vc-stat-grid>div{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}.vc-stat-grid span{color:var(--muted);font-size:14px}.vc-stat-grid strong{display:block;font-size:28px;margin-top:8px}.vc-progress label{font-size:14px}.vc-progress progress{display:block;width:100%;height:10px;accent-color:var(--accent);margin-top:8px}.vc-modes{display:flex;gap:8px;flex-wrap:wrap;margin:26px 0}.vc-daily{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:24px}.vc-daily .vc-word-card{margin-top:16px}.vc-controls{display:grid;grid-template-columns:minmax(160px,1fr) 140px 140px auto;gap:12px;align-items:end;margin:20px 0}.vc-controls label{font-size:14px;min-width:0}.vc-controls input,.vc-controls select{margin-top:8px}.vc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.vc-word-card{background:var(--panel);border:1px solid var(--line);padding:20px;border-radius:14px;overflow-wrap:anywhere}.vc-row h3{font-size:22px;margin:0;flex:1;min-width:0}.vc-id,.vc-pos{color:var(--muted);font-size:14px}.vc-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.vc-actions button[aria-pressed=true]{background:var(--soft);border-color:var(--accent);color:var(--accent)}.vc-more{margin:20px 0;width:100%}.vc-study{max-width:720px;margin:30px auto}.vc-flashcard,.vc-study-card{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;width:100%;min-height:310px;padding:28px;text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:18px;margin:20px 0;overflow-wrap:anywhere}.vc-flashcard{touch-action:pan-y}.vc-flashcard strong,.vc-study-card h3{font-size:clamp(24px,4vw,36px);margin:0;max-width:100%}.vc-flashcard span,.vc-study-card p{max-width:100%;overflow-wrap:anywhere}.vc-flashcard small{color:var(--muted);font-size:14px}.vc-quiz-choices{display:grid;gap:12px;margin:20px 0}.vc-quiz-choices button{text-align:left;overflow-wrap:anywhere;min-height:55px}.vc-feedback{padding:20px;background:var(--soft);border-left:4px solid var(--accent);border-radius:8px}.vc-source{font-size:13px;color:var(--muted);margin-top:28px}@media(max-width:800px){.vc-controls{grid-template-columns:1fr 1fr}.vc-controls label:first-child{grid-column:1/-1}.vc-grid{grid-template-columns:1fr}.vc-stat-grid{grid-template-columns:1fr 1fr}.vc-stat-grid>div{padding:16px}}@media(prefers-reduced-motion:no-preference){.vc-flashcard{transition:background-color .15s ease}.vc-flashcard[aria-pressed=true]{background:var(--soft)}}

.practice-mode{border:0;padding:0;margin:20px 0;min-width:0}.practice-mode legend{margin-bottom:10px}.practice-mode>div{display:flex;gap:12px;flex-wrap:wrap}.practice-choices{display:grid;grid-template-columns:1fr;gap:14px;margin:20px 0}.practice-choices button{width:100%;min-height:60px;white-space:normal;overflow-wrap:anywhere;font-size:1.1rem;padding:16px}.practice-choices button:focus-visible,.practice-mode button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.practice-choices .choice-correct{background:#dcfce7;color:#14532d;border:2px solid #15803d;opacity:1}.practice-choices .choice-wrong{background:#fee2e2;color:#7f1d1d;border:2px solid #b91c1c;opacity:1}.practice-feedback{min-height:88px;margin:16px 0}.practice-feedback h2{margin:0 0 12px}.practice-feedback p{margin:8px 0}@media(min-width:760px){.practice-choices{grid-template-columns:repeat(2,minmax(0,1fr))}}
.review-controls{min-width:0;overflow-wrap:anywhere}.review-controls .actions{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 18px}.review-controls .actions button{white-space:normal;min-height:44px}.review-controls label{display:block;margin:12px 0 18px}.review-controls select{display:block;max-width:100%;margin-top:6px}#review .card{min-width:0;overflow-wrap:anywhere}
#review .practice-feedback>.actions{display:flex;flex-wrap:wrap;justify-content:center;column-gap:8px;row-gap:8px}
#review .review-result-row{display:grid;grid-template-columns:minmax(0,1fr);justify-items:center;align-items:center;gap:clamp(4px,2vw,12px);min-width:0}
#review .review-result-row h2{margin:0;text-align:left;min-width:0;font-size:clamp(1rem,5vw,1.5rem);line-height:1.5;overflow-wrap:anywhere}
#review .review-result-row #next{min-height:44px;min-width:44px;white-space:nowrap;padding:8px clamp(7px,2vw,14px)}
#review .review-answer-summary{text-align:center;overflow-wrap:anywhere}
#review .practice-feedback:empty{min-height:0;margin:0}
#review .review:not(.review-controls) .word{margin:16px 0}
#review .word .ss-highlight{color:var(--accent);background:transparent;border:0;padding:0;font-weight:inherit;text-decoration-line:underline;text-decoration-color:currentColor;text-decoration-thickness:2px;text-underline-offset:4px}
#review .review:not(.review-controls) .practice-choices{margin:12px 0;gap:8px}
#review .review:not(.review-controls) .practice-choices button{min-height:52px;padding:11px}
#review .review:not(.review-controls) .practice-mode{margin:12px 0}
#review .review:not(.review-controls) .actions{justify-content:center}
.review-filter-details{margin-top:12px;text-align:left}
.review-filter-details summary{cursor:pointer;min-height:44px;display:flex;align-items:center;padding:8px 10px;background:var(--soft);border-radius:10px;font-weight:600}
.review-filter-details summary::after{content:'⌄';margin-left:auto;padding-left:8px}
.review-filter-details[open] summary::after{transform:rotate(180deg)}
.review-filter-details[open] summary{margin-bottom:16px}
.vc-levels{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.vc-levels button{min-width:72px;min-height:48px}.vc-levels button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:480px){.vc-levels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.vc-levels button{min-width:0;padding:10px 6px}}
.review-auto-speak{display:flex;align-items:center;gap:10px;width:max-content;max-width:100%;margin:4px 0 18px;font-size:.95rem;cursor:pointer}.review-auto-speak input{width:20px;height:20px;flex:none;accent-color:var(--accent)}
#review .review-assists{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 18px;margin:4px 0 18px}
#review .review-assists label{display:inline-flex;align-items:center;gap:7px;margin:0;font-size:.93rem;cursor:pointer}
#review .review-assists input{width:19px;height:19px;flex:none;margin:0;accent-color:var(--accent)}
#review .review-memory-image{width:min(100%,300px);aspect-ratio:16/9;margin:12px auto;background:var(--soft);border-radius:10px;overflow:hidden}
#review .review-memory-image img{display:block;width:100%;height:100%;object-fit:contain;opacity:0}
#review .review-memory-image.loaded img{opacity:1}
.review-known{margin:12px 0;display:flex;justify-content:flex-end}
.review-known button,#reviewSeeKnown,#reviewRestoreKnown,[data-vc-action="known-restore"],[data-vc-action="known-restore-all"],#toast button{min-height:44px;min-width:44px}
.review-known button{border:1px solid currentColor;border-radius:10px;padding:8px 16px}

.ss-highlight.vc-vowel{color:inherit;background:transparent;border:0;padding:0;font-weight:inherit;text-decoration-line:underline;text-decoration-color:currentColor;text-decoration-thickness:2px;text-underline-offset:4px}

/* Independent study layers. Motion never changes document flow or text filters. */
.scroll-card{min-width:0;max-width:100%;opacity:1;transform:none;box-sizing:border-box;isolation:isolate}
.scroll-track{min-width:0;max-width:100%;display:flow-root}
.scroll-panel-track{margin:18px 0}
.scroll-panel-track>.scroll-panel{margin:0}
.scroll-panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px;margin:18px 0;box-shadow:0 3px 12px rgba(15,23,42,.025)}
.scroll-card.scroll-motion{opacity:0;transform:translateY(20px) scale(.985);transition:opacity 440ms cubic-bezier(.22,1,.36,1),transform 440ms cubic-bezier(.22,1,.36,1),box-shadow 440ms cubic-bezier(.22,1,.36,1)}
.scroll-card.scroll-motion.is-visible{opacity:1;transform:translateY(0) scale(.99);will-change:transform,opacity}
.scroll-card.scroll-motion.is-visible.is-focused{transform:translateY(-3px) scale(1.005);box-shadow:0 18px 45px rgba(15,23,42,.07),0 4px 12px rgba(15,23,42,.04)}
.scroll-card.scroll-current.is-focused{box-shadow:0 20px 46px rgba(15,23,42,.08),0 5px 14px rgba(15,23,42,.045)}
.scroll-card:focus-within{opacity:1}
#review .scroll-shell{padding:0;border:0;background:transparent;box-shadow:none}
#review .scroll-panel .practice-mode,#review .scroll-panel .review-assists{margin:12px 0}
#review .scroll-panel .review-assists{justify-content:flex-start}
#review .scroll-panel .practice-choices{margin:0}
#review .scroll-current .review-known{margin-bottom:0}
#review .scroll-current #feedback:empty{display:none}
.scroll-panel>.vc-levels,.scroll-panel>.vc-modes,.scroll-panel>.vc-controls{margin:0}
.scroll-panel>.vc-stat-grid{margin:0 0 16px}
.scroll-panel [data-practice-score]{margin:0}
.scroll-panel>.practice-choices,.scroll-panel>.vc-quiz-choices{margin:0}
.vc-study .scroll-current{padding:0;overflow-wrap:anywhere}
.scroll-current>.vc-study-card,.scroll-current>.vc-flashcard{border:0;background:transparent;margin:0;box-shadow:none;border-radius:16px}
.scroll-current>.practice-feedback,.scroll-current>.actions,.scroll-current>.vc-actions,.scroll-current>[data-vc-pronounce-status]{margin:16px 20px}
.scroll-current>.practice-feedback:empty,.scroll-current>[data-vc-pronounce-status]:empty{display:none}
.scroll-panel button,.scroll-panel select,.scroll-panel input{max-width:100%;box-sizing:border-box}
.scroll-panel button{white-space:normal;overflow-wrap:anywhere}
.scroll-panel form{min-width:0}
.scroll-panel [data-practice-input],.scroll-panel #answer{min-width:0}
@media(max-width:480px){.scroll-panel{padding:18px;border-radius:14px}.scroll-panel>.vc-controls{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.scroll-panel>.vc-controls label{min-width:0}.scroll-panel>.vc-controls select,.scroll-panel>.vc-controls input{width:100%}}
@media(prefers-reduced-motion:reduce){.scroll-card,.scroll-card.scroll-motion,.scroll-card.scroll-motion.is-visible,.scroll-card.scroll-motion.is-visible.is-focused{transition:none;transform:none;opacity:1;will-change:auto}}

/* Reserve answer feedback before submission; updating it must not move cards. */
#review,#vocabulary,#oxford3000{overflow-anchor:none}
.stable-feedback{display:grid;grid-template-columns:minmax(0,1fr)}
.stable-feedback>.feedback-reserve,.stable-feedback>.feedback-content{grid-area:1/1;min-width:0}
.feedback-reserve{visibility:hidden;pointer-events:none;user-select:none}
.feedback-next-placeholder{display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;min-height:44px;padding:8px 14px}
.feedback-memory-slot{width:min(100%,300px);aspect-ratio:16/9;margin:12px auto}
.review-known.is-reserved{visibility:hidden;pointer-events:none}
.scroll-current{transform-origin:50% 0}
.practice-choices .choice-correct{border-width:1px;box-shadow:inset 0 0 0 1px #15803d}
.practice-choices button{display:flex;align-items:center;justify-content:center;gap:10px}
.choice-answer-text{min-width:0;overflow-wrap:anywhere}
.choice-result-icon{display:inline-flex;align-items:center;justify-content:center;flex:none;width:26px;height:26px;background:transparent;color:#15803d}
.choice-result-icon .control-icon{width:25px;height:25px;stroke-width:2.4}
.choice-wrong .choice-result-icon{color:#b91c1c}
.practice-choices button:not(:disabled):active{transform:translateY(2px) scale(.985);box-shadow:inset 0 2px 5px rgba(15,23,42,.12)}
.choice-correct{position:relative;isolation:isolate}
#reviewAnswerSummary.answer-impact{position:relative}
.answer-particles{position:absolute;inset:0;pointer-events:none;overflow:visible;z-index:2}
.answer-particles i{position:absolute;left:var(--x);top:var(--y);width:8px;height:3px;border-radius:2px;background:#16a34a;opacity:0}
.answer-particles i:nth-child(3n){background:#dca62e;width:5px;height:5px}
@media(prefers-reduced-motion:no-preference){
 .choice-correct.answer-impact{animation:answer-button-impact .48s cubic-bezier(.2,.8,.3,1) both}
 #reviewAnswerSummary.answer-impact{animation:answer-button-impact .48s cubic-bezier(.2,.8,.3,1) both}
 .answer-particles i{animation:answer-particle-burst .65s ease-out var(--delay) both}
 @keyframes answer-button-impact{0%{transform:translateY(2px) scale(.98);box-shadow:0 0 0 0 rgba(21,128,61,.26)}40%{transform:translateY(-3px) scale(1.025);box-shadow:0 5px 15px rgba(21,128,61,.2)}72%{transform:translateY(1px) scale(.998)}100%{transform:translateY(0) scale(1);box-shadow:0 0 0 0 rgba(21,128,61,0)}}
 @keyframes answer-particle-burst{0%{opacity:0;transform:translate(0,0) rotate(0deg) scale(.4)}12%{opacity:1}75%{opacity:.7}100%{opacity:0;transform:translate(var(--dx),var(--dy)) rotate(var(--turn)) scale(.5)}}
}
@media(prefers-reduced-motion:reduce){.practice-choices button:not(:disabled):active{transform:none}.answer-particles{display:none}}
.choice-result-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
@media(prefers-reduced-motion:no-preference){.choice-correct .choice-result-icon path{stroke-dasharray:24;animation:choice-check-draw .2s ease-out both}@keyframes choice-check-draw{from{stroke-dashoffset:24}to{stroke-dashoffset:0}}}
.practice-choices .choice-wrong{border-width:1px;box-shadow:inset 0 0 0 1px #b91c1c}

/* One set of study controls across CEFR levels and viewport sizes. */
#review .review-assists{display:grid;grid-template-columns:minmax(0,1fr);gap:8px 16px;justify-content:start}
#review .review-assists .assist-option{display:flex;align-items:center;gap:10px;min-width:0;min-height:44px;margin:0;font-size:1rem;line-height:1.5;text-align:left}
#review .assist-option input{width:20px;height:20px;flex:0 0 20px;margin:0}
#review .assist-option span{min-width:0;overflow-wrap:anywhere}
#review .assist-option input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.practice-mode>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%;max-width:400px}
.practice-mode button{min-width:0;min-height:44px;padding:10px 12px;border-radius:10px;font-size:1rem;line-height:1.5;white-space:normal}
#review .review-known{justify-content:center;min-width:0}
#review .review-known button{display:inline-flex;align-items:center;justify-content:center;gap:10px;max-width:100%;min-height:44px;padding:10px 14px;line-height:1.5}
#review .review-known button span{min-width:0;overflow-wrap:anywhere}
#review .word{text-align:center;max-width:100%;overflow-wrap:anywhere}
#review .review-memory-image,.feedback-memory-slot{max-width:100%}
#review #answerForm,[data-practice-form]{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
#review #answerForm input,[data-practice-form] input{flex:1 1 180px;min-width:0;max-width:100%}
#review #answerForm button,[data-practice-form] button{min-height:44px;max-width:100%}
@media(min-width:768px){#review .review-assists{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:375px){.practice-mode button{padding:10px 6px}.scroll-panel{padding:14px}}

/* Review-only section hierarchy and compact source/direction controls. */
.page.review-page{align-self:start;margin-block:0;padding-top:16px}
#review .review{margin:0 auto 12px}
#review .review-controls{padding:18px;min-height:0}
#review .review-controls .review-section-heading{margin-bottom:10px}
#review .review-controls .review-filter-details{margin-top:8px}
#review .review-filter-details[open] summary{margin-bottom:10px}
#review .review-controls label{margin:10px 0}
#review .review-controls .actions{margin-block:8px 12px}
#review .review-controls .label:not(.review-section-heading){margin-bottom:8px}
@media(max-width:760px){.page.review-page{padding-top:12px}#review .review-controls{padding:14px}}
#review .review-section-heading,#review .practice-mode legend{
  font-size:clamp(1.25rem,1.1rem + .5vw,1.5rem);
  font-weight:600;line-height:1.5;letter-spacing:normal;
  color:var(--text-heading);text-align:center;
  overflow-wrap:normal;word-break:normal;text-wrap:pretty;
  max-width:100%;margin:0 0 16px;
}
#review .review-controls .review-source-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:8px;max-width:560px;margin:0 auto 10px;
}
#review .review-source-grid button{min-width:0}
#review .review-direction{display:block;margin:0 0 16px}
#review .review-direction select{display:block;margin:0 auto;max-width:100%}
#review .practice-mode legend{width:100%;padding:0}
#review .review:not(.review-controls) .practice-mode{margin:0 0 16px}
#review .practice-mode>div{margin-inline:auto}
@media(max-width:760px){
  #review .review-controls .review-source-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

.vc-topics,.vc-categories{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.vc-topics button,.vc-categories button,.vc-everyday-details button{min-height:44px;white-space:normal}.vc-everyday-intro{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:20px;margin:20px 0}.vc-everyday-intro h3{margin:0 0 8px}.vc-everyday-details{border-top:1px solid var(--line);margin-top:14px;padding-top:8px;min-width:0}.vc-usage+.vc-usage{border-top:1px dashed var(--line);margin-top:14px;padding-top:8px}.vc-example{font-weight:600}.vc-source-label{font-size:12px;color:var(--accent)}.vc-everyday-details p{margin:8px 0;overflow-wrap:anywhere}.vc-topics button:focus-visible,.vc-categories button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:480px){.vc-topics{display:grid;grid-template-columns:1fr}.vc-categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.vc-categories button{padding:10px 6px;min-width:0}.vc-everyday-intro{padding:14px}.vc-everyday-details{font-size:15px}}

.review-category-label{display:block;min-width:0}.review-category-label select{width:100%;max-width:100%;min-height:44px;font-size:16px}.review-controls{overflow-anchor:none}.review-pronunciation{display:flex;gap:8px;flex-wrap:wrap}.review-pronunciation button{min-height:44px}#review .vc-everyday-details{text-align:left;max-width:100%;overflow-wrap:anywhere}



/* Compact review: prompt and choices share a content-sized card. */
#review .scroll-current { min-height: 0; }
#review .scroll-current .word { margin: 4px 0 8px; line-height: 1.5; }
#review .scroll-current > .actions { margin: 8px 0; }
#review .scroll-current .review-known { margin: 8px 0 12px; }
#review .scroll-current .practice-choices { margin: 12px 0 0; gap: 8px; }
#review .scroll-current #answerForm { margin-top: 12px; }
#review .scroll-current #answer { margin: 0 0 10px; }
/* Reserve only visible feedback; hidden examples/images must not push answers
   down. Feedback is after choices, so revealing it leaves the choices in place. */
#review .scroll-current .feedback-reserve { display: none; }
#review .scroll-current #feedback { min-height: 0; margin: 0; }
#review .scroll-current #feedback:has(.feedback-content:not(:empty)) { margin-top: 8px; }
#review .scroll-current .review-answer-summary { margin: 6px 0; }
#review .scroll-current > .tiny { margin-bottom: 0; }

/* Keep the review score within the word card, above the prompt. */
#review .scroll-current>[data-practice-score]{text-align:left;margin:0 0 8px;font-size:14px;line-height:1.5}
#review .scroll-current>[data-practice-score]+.word{margin-top:0}

/* Start within the vocabulary header instead of a separate introduction card. */
#review .review-controls-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
#review .review-controls-header .review-section-heading{margin:0;text-align:left}
#review .review-controls-header #startReview{flex:0 0 auto;min-height:44px;padding:10px 16px}

/* Keep source selection and setup compact so the current word stays in view. */
#review .review-controls{max-width:none;padding:16px 18px;text-align:left}
#review .review-controls-header{margin-bottom:12px;flex-wrap:wrap}
#review .review-heading-title{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-width:0}
#review .review-controls-header .review-section-heading{font-size:20px;margin:0}
#review .review-pool-count{display:inline-flex;align-items:center;min-height:28px;padding:3px 10px;border-radius:20px;background:var(--soft);color:var(--accent);font-size:14px;font-weight:600;white-space:nowrap;font-variant-numeric:tabular-nums}
#review .review-controls .review-source-grid{grid-template-columns:repeat(7,minmax(0,1fr));max-width:none;gap:8px;margin:0}
#review .review-source-select{display:none}
#review .review-source-grid button{padding:8px 10px;min-height:44px;font-size:15px;line-height:1.4}
#review .review:not(.review-controls){max-width:960px}
#review [data-scroll-block="settings"]{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:end;gap:12px 20px;padding:16px 20px;text-align:left}
#review [data-scroll-block="settings"]>.review-section-heading{grid-column:1/-1;font-size:18px;line-height:1.5;text-align:left;margin:0}
#review [data-scroll-block="settings"]>.review-direction{margin:0;min-width:0}
#review .review-direction>span{display:block;font-size:14px;font-weight:600;color:var(--muted);margin-bottom:6px}
#review .review-direction select{width:100%;margin:0;min-height:44px;padding:8px 12px}
#review [data-scroll-block="settings"]>.practice-mode{min-width:0;margin:0}
#review [data-scroll-block="settings"]>.practice-mode legend{font-size:14px;line-height:1.5;text-align:left;margin:0 0 6px;padding:0;color:var(--muted)}
#review [data-scroll-block="settings"]>.practice-mode legend{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
#review .scroll-current>.review-word-line{display:flex;align-items:center;justify-content:center;gap:12px;margin:8px 0 12px;min-width:0}
#review .scroll-current>.review-word-line>.word{flex:0 1 auto;min-width:0;margin:0!important;overflow-wrap:anywhere}
#review .review-word-prompt>.audio-button{display:inline-flex;align-items:center;justify-content:center;flex:0 0 44px;width:44px;height:44px;min-height:44px;padding:10px;border:1px solid transparent;border-radius:50%;background:transparent;color:var(--accent);box-shadow:none}
#review .review-word-prompt>.audio-button:hover{background:var(--soft);border-color:var(--line)}
#review .review-word-prompt>.audio-button>span{display:none}
#review .review-word-line>.review-known{flex:0 0 44px;display:flex;align-items:center;justify-content:center;margin:0;min-width:44px}
#review .scroll-current>.review-word-line{align-items:flex-start}
#review .review-word-line>.review-known>#markKnown{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;min-width:44px;min-height:44px;padding:10px;border:1px solid var(--line);border-radius:50%;background:var(--panel);color:var(--muted)}
#review .review-word-line>.review-known>#markKnown:hover{background:var(--soft);border-color:var(--accent);color:var(--accent)}
#review .review-controls .review-settings-toggle{display:flex;align-items:center;justify-content:center;gap:8px;width:max-content;max-width:100%;min-height:40px;padding:8px 12px;margin:0 0 12px;font-size:14px;line-height:1.5}
#review .review-settings-toggle[aria-expanded="true"]>svg{transform:rotate(180deg)}
#review .review-settings-toggle[hidden],#review .review-settings-track[hidden],#review [data-scroll-block="settings"][hidden]{display:none!important}
#review [data-scroll-block="settings"]>.practice-mode>div{max-width:none;margin:0;gap:8px}
#review [data-scroll-block="settings"]>.practice-mode button{min-height:44px;padding:8px 12px;font-size:15px}
#review [data-scroll-block="settings"]>.review-assists{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:4px 20px;margin:0;padding-top:8px;border-top:1px solid var(--line)}
#review [data-scroll-block="settings"] .assist-option{min-height:36px;font-size:14px}
#review .scroll-panel-track{margin:10px 0}
@media(max-width:1279px){#review .review-controls .review-source-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:760px){#review .review-controls .review-source-grid{display:none}#review .review-controls .review-source-select{display:block;width:100%;min-height:44px;margin:0;font-size:16px;padding:8px 12px}}
@media(max-width:480px){#review .review-controls{padding:14px}#review [data-scroll-block="settings"]{grid-template-columns:minmax(0,1fr);padding:14px;gap:10px}#review [data-scroll-block="settings"]>.review-section-heading,#review [data-scroll-block="settings"]>.review-assists{grid-column:1}#review .review-controls-header .review-section-heading{font-size:18px}#review [data-scroll-block="settings"]>.review-assists{gap:2px 12px}}

/* Keep the next action reachable after an answer at every viewport height. */
#review .scroll-current{padding:16px 20px}
#review .scroll-current .word{margin:4px 0 8px!important;line-height:1.3}
#review .scroll-current .hint-lane{flex-direction:row;flex-wrap:wrap;justify-content:center;gap:4px 18px;margin-top:8px;font-size:16px;line-height:1.5}
#review .scroll-current>.actions{margin:4px 0}
#review .scroll-current .review-known{margin:4px 0 8px}
#review .scroll-current .practice-choices{margin-top:8px!important}
#review .review-question-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 8px;min-width:0}
#review .review-question-header>[data-practice-score]{margin:0;text-align:left;font-size:14px;min-width:0}
#review .review-encouragement{margin:0;min-height:24px;color:#15803d;font-size:15px;font-weight:650;line-height:1.5;text-align:right;text-wrap:balance}
#review .review-encouragement:empty{visibility:hidden}
body.dark #review .review-encouragement{color:#86efac}
@media(max-width:480px){#review .review-question-header{gap:8px}#review .review-encouragement{font-size:13px;max-width:65%}}
@media(prefers-reduced-motion:no-preference){
 #review .answer-celebrate{animation:answer-confidence .6s ease-out}
 #review .answer-celebrate .choice-correct .choice-result-icon{animation:answer-check-pop .4s cubic-bezier(.22,.8,.3,1)}
 #review .answer-celebrate .review-encouragement{animation:answer-encourage .35s ease-out}
 @keyframes answer-confidence{0%{box-shadow:0 0 0 0 rgba(21,128,61,.22)}45%{box-shadow:0 0 0 4px rgba(21,128,61,.1),0 12px 30px rgba(21,128,61,.09)}100%{box-shadow:0 0 0 8px rgba(21,128,61,0)}}
 @keyframes answer-check-pop{0%{transform:scale(.7)}65%{transform:scale(1.12)}100%{transform:scale(1)}}
 @keyframes answer-encourage{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
}
#review .scroll-current>#reviewNextSlot.review-result-row{position:static;display:flex;align-items:center;justify-content:center;width:100%;margin:14px 0 0;min-height:44px;padding:0;border:0;background:transparent;box-shadow:none}
#review .scroll-current>#reviewNextSlot.review-result-row:empty{display:none;margin:0;min-height:0}
#review .review-result-row:has(#next){position:static;transform:none;display:flex;width:max-content;max-width:100%;padding:0;border:0;background:transparent;box-shadow:none}
#review .review-result-row #next{min-height:44px;min-width:132px;padding:10px 20px;background:var(--panel)}
@media(max-width:480px){#review .scroll-current{padding:14px}.review-result-row:has(#next){max-width:calc(100vw - 24px)}}

#review .scroll-current #reviewAnswerSummary{min-height:2.4em;margin:8px 0;padding:8px 10px;border-radius:12px;font-size:clamp(17px,1.2vw,20px);line-height:1.9;text-align:center;isolation:isolate}
#reviewAnswerSummary.is-pending{visibility:hidden}
#reviewAnswerSummary{--answer-english:#18345c;--answer-thai:#b91c1c;--answer-english-fill:linear-gradient(125deg,#102e54,#244e7c);--answer-thai-fill:linear-gradient(125deg,#991b1b,#d32635);--answer-english-ring:#18345c45;--answer-english-glow:#18345c30;--answer-thai-ring:#dc26264d;--answer-thai-glow:#dc262633}
#reviewAnswerSummary .review-answer-part{font-weight:650;box-decoration-break:clone;-webkit-box-decoration-break:clone}
#reviewAnswerSummary.is-correct{color:#64748b;background:linear-gradient(115deg,#f0f5fc,#ffffff 52%,#fff5f5);box-shadow:inset 0 0 0 1px #dce4ef}
#reviewAnswerSummary>span[aria-hidden="true"]{color:#94a3b8;padding-inline:3px}
#reviewAnswerSummary [data-answer-language="english"]{color:var(--answer-english)}
#reviewAnswerSummary [data-answer-language="thai"]{color:var(--answer-thai);font-weight:600;padding:4px 6px;border-radius:8px;transition:color .14s,background-color .14s,box-shadow .14s}
#reviewAnswerSummary[data-reading-language="thai"] [data-answer-language="thai"]{color:#fff;background:var(--answer-thai-fill);box-shadow:0 0 0 2px var(--answer-thai-ring),0 4px 18px var(--answer-thai-glow);text-shadow:0 1px 1px #7f1d1d33}
#reviewAnswerSummary[data-reading-language="english"] [data-answer-language="english"]:not(:has(.is-speaking-word)){color:#fff;background:var(--answer-english-fill);border-radius:8px;box-shadow:0 0 0 2px var(--answer-english-ring),0 4px 18px var(--answer-english-glow)}
#reviewAnswerSummary .review-answer-word{display:inline-block;padding:4px 6px;border-radius:8px;text-decoration:none;transform-origin:center;box-decoration-break:clone;-webkit-box-decoration-break:clone}
#reviewAnswerSummary [data-answer-language="thai"] .review-answer-word{padding-inline:1px}
#reviewAnswerSummary .review-answer-word.is-speaking-word{color:#fff;background:var(--answer-english-fill);box-shadow:0 0 0 2px var(--answer-english-ring),0 5px 20px var(--answer-english-glow);text-shadow:0 1px 2px #102e5444;position:relative;z-index:1}
#reviewAnswerSummary .review-answer-word.is-speaking-word::after{content:'';position:absolute;inset:0;border-radius:inherit;background:linear-gradient(120deg,#ffffff30,transparent 60%);pointer-events:none}
@media(prefers-reduced-motion:no-preference){#reviewAnswerSummary .review-answer-word{transition:box-shadow .14s,transform .14s}#reviewAnswerSummary .review-answer-word.is-speaking-word{transform:translateY(-2px) scale(1.08);animation:review-word-focus .2s cubic-bezier(.2,.8,.2,1) both}@keyframes review-word-focus{from{transform:translateY(0) scale(1);box-shadow:0 0 0 0 var(--answer-english-ring),0 0 0 #18345c00}to{transform:translateY(-2px) scale(1.08);box-shadow:0 0 0 2px var(--answer-english-ring),0 5px 20px var(--answer-english-glow)}}}
body.dark #reviewAnswerSummary{--answer-english:#c7dcff;--answer-thai:#fda4af;--answer-english-ring:#8aafd666;--answer-english-glow:#122c5466;--answer-thai-ring:#fb718566;--answer-thai-glow:#e11d4838}
body.dark #reviewAnswerSummary.is-correct{background:linear-gradient(115deg,#16243b,#1e293b 55%,#372334);box-shadow:inset 0 0 0 1px #475569}
@media(prefers-reduced-motion:reduce){#reviewAnswerSummary [data-answer-language="thai"]{transition:none}}

/* Compact source selection beside the existing level controls. */
.vc-sources{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;margin-bottom:12px;padding:4px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
.vc-sources button{min-width:0;min-height:44px;white-space:normal;overflow-wrap:anywhere;padding:8px 6px;font-size:13px}
.vc-review-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:16px}
.vc-review-heading h2{min-width:0;font-size:20px;margin:0;overflow-wrap:anywhere}
.vc-review-heading>button{min-height:44px}
@media(max-width:400px){.vc-sources button{font-size:12px}.vc-review-heading{align-items:stretch}.vc-review-heading>button{width:100%}}

/* Reference-list layout: shared by every source and level in Vocabulary. */
#vocabulary .vc-compact-catalog{--vc-columns:32px minmax(150px,1fr) minmax(80px,.6fr) minmax(160px,1.45fr) 34px 184px;font-size:17px;line-height:1.5}
#vocabulary .vc-sources{max-width:560px;margin:0 0 10px;padding:3px;border-radius:10px}
#vocabulary .vc-sources button{min-height:40px;border-radius:7px}
#vocabulary .vc-levels{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px}
#vocabulary .vc-catalog-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:8px 16px;margin-bottom:12px}
#vocabulary .vc-catalog-toolbar>.vc-levels{flex:1 1 auto;margin:0}
#vocabulary .vc-catalog-toolbar>[data-vc-action="open-review"]{flex:none;margin-left:auto;min-height:40px;padding:8px 16px}
#vocabulary .vc-levels button{min-width:48px;min-height:36px;padding:6px 12px;border-radius:7px;font-size:15px}
#vocabulary .vc-categories{margin:0 0 12px;gap:6px}
#vocabulary .vc-categories button{min-height:36px;padding:6px 10px;font-size:15px}
#vocabulary .vc-review-heading{margin:12px 0 0;gap:10px;align-items:center}
#vocabulary .vc-review-heading h2{font-size:20px;line-height:1.5}
#vocabulary .vc-review-heading>button{width:auto;min-height:40px;padding:8px 16px;border-radius:8px;font-size:16px}
#vocabulary .vc-review-heading+.muted{margin:5px 0 12px;font-size:15px}
#vocabulary .vc-controls{grid-template-columns:minmax(180px,1fr) 140px 140px auto;gap:12px;margin:12px 0 18px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
#vocabulary .vc-controls label{font-size:14px;line-height:1.5;color:var(--muted)}
#vocabulary .vc-controls input,#vocabulary .vc-controls select{height:40px;min-height:40px;margin-top:4px;padding:7px 10px;font-size:16px;border-radius:7px}
#vocabulary .vc-controls>button{min-height:40px;height:40px;padding:7px 12px;font-size:15px;border-radius:7px}
#vocabulary [data-vc-results]>p[role=status]{margin:0 0 8px;font-size:15px;color:var(--muted)}
#vocabulary .vc-list-heading,#vocabulary .vc-word-card{display:grid;grid-template-columns:var(--vc-columns);column-gap:12px;align-items:center}
#vocabulary .vc-list-heading{padding:10px 14px;color:var(--muted);font-size:14px;font-weight:600;background:var(--soft);border:1px solid var(--line);border-bottom:0;border-radius:10px 10px 0 0}
#vocabulary .vc-list-heading>span:last-child{text-align:right;padding-right:8px}
#vocabulary .vc-grid{display:block;border:1px solid var(--line);border-radius:0 0 10px 10px;overflow:visible;background:var(--panel)}
#vocabulary .vc-word-card{position:relative;min-height:66px;padding:12px 14px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;box-shadow:none;gap:4px 12px;overflow-wrap:anywhere}
#vocabulary .vc-word-card:last-child{border-bottom:0}
#vocabulary .vc-word-card:nth-child(even){background:color-mix(in srgb,var(--soft) 30%,var(--panel))}
#vocabulary .vc-word-card:focus-within{background:var(--soft)}
#vocabulary .vc-row{display:contents}
#vocabulary .vc-id{grid-column:1;grid-row:1;font-size:14px;font-variant-numeric:tabular-nums;color:var(--muted)}
#vocabulary .vc-row h3{grid-column:2;grid-row:1;font-size:19px;font-weight:600;line-height:1.5;margin:0}
#vocabulary .vc-word-card>.vc-pos{grid-column:3;grid-row:1;font-size:14px;line-height:1.5;margin:0}
#vocabulary .vc-word-card>.vc-meaning{grid-column:4;grid-row:1;margin:0;font-size:16px;line-height:1.65}
#vocabulary .vc-row>.vc-badge{grid-column:5;grid-row:1;justify-self:start;font-size:13px;line-height:1.4;padding:3px 6px;border-radius:5px}
#vocabulary .vc-entry-actions{grid-column:6;grid-row:1;display:flex;flex-wrap:nowrap;justify-content:flex-end;align-items:center;gap:2px;margin:0}
#vocabulary .vc-entry-actions button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:36px;min-width:34px;min-height:36px;margin:0;padding:6px;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--muted);box-shadow:none}
#vocabulary .vc-entry-actions button:hover{background:var(--soft);border-color:var(--line);color:var(--text)}
#vocabulary .vc-entry-actions button[aria-pressed=true]{background:var(--soft);border-color:var(--line);color:var(--accent)}
#vocabulary .vc-entry-actions svg{width:19px;height:19px;flex-shrink:0}
#vocabulary .vc-entry-actions button[data-vc-action=favorite][aria-pressed=true] svg{fill:currentColor}
#vocabulary .vc-entry-actions .vc-action-label,#vocabulary .vc-entry-actions .audio-button>span{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
#vocabulary .vc-word-card{cursor:pointer}
#vocabulary .vc-word-trigger{display:inline-block;text-align:start;font:inherit;color:inherit;padding:0;margin:0;min-height:44px;max-width:100%;border:0;background:transparent;box-shadow:none;white-space:normal;overflow-wrap:anywhere}
#vocabulary .vc-word-trigger:hover{color:var(--accent)}
#vocabulary .vc-word-selected{background:var(--soft);box-shadow:inset 3px 0 var(--accent)}
.vc-word-focus{box-sizing:border-box;width:min(640px,calc(100vw - 32px));max-height:calc(100dvh - 48px);margin:auto;padding:28px;border:1px solid var(--line);border-top:4px solid var(--accent);border-radius:18px;background:var(--panel);color:var(--text);box-shadow:0 24px 80px rgba(15,23,42,.3);overflow:auto;overscroll-behavior:contain;font-size:18px;line-height:1.65}
.vc-word-focus::backdrop{background:rgba(15,23,42,.55)}
html:has(.vc-word-focus[open]){overflow:hidden;scrollbar-gutter:stable}
.vc-focus-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.vc-focus-header h2{font-size:clamp(28px,5vw,40px);line-height:1.3;margin:12px 0;overflow-wrap:anywhere;outline:none}
.vc-focus-close{flex:none;min-width:44px;min-height:44px;font-size:28px;line-height:1;border:1px solid var(--line);border-radius:50%;background:var(--soft);color:var(--text)}
.vc-word-focus button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.vc-focus-navigation{display:flex;justify-content:flex-end;margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}
.vc-focus-next{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--accent);font:inherit;cursor:pointer}
.vc-focus-next svg{flex:none}
.vc-focus-next:hover:not(:disabled){background:var(--soft);border-color:var(--accent)}
.vc-focus-next:disabled{opacity:.4;cursor:default}
.vc-word-focus>.vc-pos{font-size:16px;margin:0 0 12px}
.vc-focus-meaning{font-size:22px;margin:12px 0 18px}
.vc-word-focus .vc-everyday-details{margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}
.vc-word-focus .vc-source-label{font-size:13px;color:var(--accent);margin:0 0 12px}
.vc-word-focus .vc-example{font-size:20px;font-weight:600;color:var(--text)}
.vc-word-focus .vc-usage+.vc-usage{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}
@media(max-width:480px){.vc-word-focus{padding:20px;width:calc(100vw - 24px);max-height:calc(100dvh - 24px)}.vc-focus-meaning{font-size:20px}}
@media(prefers-reduced-motion:no-preference){.vc-word-focus[open]{animation:vc-focus-in .18s ease-out}@keyframes vc-focus-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}}
#vocabulary .vc-entry-restore{grid-column:2/-1;justify-self:start;min-height:36px;padding:6px 10px;font-size:15px}
#vocabulary button:focus-visible,#vocabulary summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
#vocabulary .vc-source{margin-top:16px;font-size:13px;line-height:1.6}
@media(min-width:701px) and (max-width:1250px){
 #vocabulary .vc-compact-catalog{--vc-columns:26px minmax(120px,1fr) minmax(140px,1.4fr) 184px}
 #vocabulary .vc-list-heading{display:none}#vocabulary .vc-grid{border-radius:10px}
 #vocabulary .vc-word-card>.vc-pos{grid-column:2;grid-row:2}
 #vocabulary .vc-word-card>.vc-meaning{grid-column:3;grid-row:1/span 2}
 #vocabulary .vc-row>.vc-badge{grid-column:1;grid-row:2}
 #vocabulary .vc-entry-actions{grid-column:4;grid-row:1/span 2}
 #vocabulary .vc-entry-details,#vocabulary .vc-entry-restore{grid-row:3}
}
@media(max-width:700px){
 #vocabulary .vc-compact-catalog{--vc-columns:22px minmax(0,1fr) 34px}
 #vocabulary .vc-sources{max-width:none}#vocabulary .vc-sources button{min-height:44px;font-size:14px}
 #vocabulary .vc-levels button{flex:1 0 40px;min-width:40px;min-height:40px;padding:6px 8px}
 #vocabulary .vc-categories{display:flex}#vocabulary .vc-categories button{min-height:40px}
 #vocabulary .vc-review-heading h2{font-size:18px}#vocabulary .vc-review-heading .vc-badge{font-size:13px;padding:3px 6px}
 #vocabulary .vc-review-heading>button{min-height:44px;padding:8px 12px;font-size:15px}
 #vocabulary .vc-controls{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;padding:10px;gap:8px;margin-bottom:14px}
 #vocabulary .vc-controls label:first-child{grid-column:1/-1}
 #vocabulary .vc-controls input,#vocabulary .vc-controls select{font-size:18px;height:44px;min-height:44px;max-width:100%;width:100%}
 #vocabulary .vc-controls>button{min-height:44px;height:44px;padding:7px 9px;font-size:14px}
 #vocabulary .vc-list-heading{display:none}#vocabulary .vc-grid{border-radius:10px}
 #vocabulary .vc-word-card{padding:12px 10px;column-gap:8px;row-gap:3px}
 #vocabulary .vc-row h3{font-size:19px}#vocabulary .vc-row>.vc-badge{grid-column:3}
 #vocabulary .vc-word-card>.vc-pos{grid-column:2/4;grid-row:2;font-size:14px}
 #vocabulary .vc-word-card>.vc-meaning{grid-column:2/4;grid-row:3;font-size:16px}
 #vocabulary .vc-entry-actions{grid-column:2/4;grid-row:4;justify-content:flex-start;gap:2px;margin-top:2px}
 #vocabulary .vc-entry-actions button{width:44px;min-width:44px;height:44px;min-height:44px}
 #vocabulary .vc-entry-details{grid-column:2/4;grid-row:5}
 #vocabulary .vc-entry-details>summary{min-height:40px}
 #vocabulary .vc-entry-restore{grid-column:2/4;grid-row:6;min-height:44px}
}

/* Vocabulary uses plain word labels; pronunciation cues remain in Review. */
#vocabulary .vc-vowel{color:inherit;background:transparent;text-decoration:none}
#vocabulary .vc-sources button{font-size:15px}
#vocabulary .vc-review-heading .vc-badge{font-size:16px}
#vocabulary .vc-entry-details .vc-pos{font-size:16px}
.page:has(#vocabulary:not([hidden]))>header h1{font-size:30px}
.page:has(#vocabulary:not([hidden]))>header #subtitle{font-size:18px}
#vocabulary .vc-word-card:hover{background:color-mix(in srgb,var(--soft) 55%,var(--panel))}
#vocabulary .vc-word-card{transition:background-color .15s ease}
#vocabulary .vc-empty-results{padding:28px 18px;text-align:center}
#vocabulary .vc-empty-results h3{font-size:19px;margin:0 0 6px}
#vocabulary .vc-empty-results p{font-size:16px;color:var(--muted);margin:0 0 16px}
#vocabulary .vc-empty-results button{min-height:44px;font-size:15px}
@media(max-width:700px){#vocabulary .vc-sources button{font-size:14px}#vocabulary .vc-review-heading .vc-badge{font-size:13px}#vocabulary .vc-compact-catalog{--vc-columns:24px minmax(0,1fr) 40px}}
@media(prefers-reduced-motion:reduce){#vocabulary .vc-word-card{transition:none}}

@media(max-width:700px){#vocabulary .vc-levels button[data-vc-level="all"]{flex-basis:64px;min-width:64px}}
/* Keep post-answer actions within reach on phones, including Safari safe areas. */
#review .review-result-row{gap:10px}
#review #reviewNextSlot #next{flex:1;min-width:0;min-height:48px;border:0;border-radius:12px;background:#0754ed;color:#fff;font-weight:700;font-size:17px;padding:10px 20px}
#review #reviewNextSlot #next:not(:disabled):hover{background:var(--brand-navy,#07143f);color:#fff}
#review #reviewNextSlot #reviewThaiReplay{flex:0 0 auto;min-height:48px;padding:10px 14px;border-radius:12px;font-size:15px}
@media(min-width:761px){#review #reviewNextSlot{width:100%;max-width:560px;margin-inline:auto}}
@media(max-width:760px){
 #review:has(#next){padding-bottom:20px}
 #review .scroll-current>#reviewNextSlot.review-result-row:has(#next){position:static;z-index:auto;left:auto;right:auto;bottom:auto;width:100%;max-width:100%;min-height:64px;margin:14px 0 0;padding:10px 12px;box-sizing:border-box;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:0 8px 30px #102e5429;transform:none}
 #review #reviewNextSlot #next{flex:1;min-width:0;min-height:48px;border:0;border-radius:12px;background:#0754ed;color:#fff;font-weight:700;font-size:17px}
 #review #reviewNextSlot #reviewThaiReplay{flex:0 0 auto;min-height:48px;padding:10px 14px;border-radius:12px;font-size:15px}
 #review .scroll-current{padding:14px;scroll-margin-bottom:20px}
 #review .scroll-current #reviewAnswerSummary{padding:8px;margin:6px 0;font-size:16px;line-height:1.6;min-height:0}
 #review .practice-choices{gap:8px}
 #review .practice-choices button{min-height:48px;padding:9px 12px;font-size:16px;line-height:1.55;overflow-wrap:anywhere}
 #review .hint-lane{font-size:14px;line-height:1.5}
 #review .review-question-header{margin-bottom:6px}
}
/* The action rail owns its space: content scrolls in a shorter viewport above it. */
@media(max-width:760px){
 body.review-mobile-viewport{overflow:hidden}
 body.review-mobile-viewport>.app{height:var(--review-scroll-height,100dvh);min-height:0;max-height:var(--review-scroll-height,100dvh);overflow-y:auto;overflow-x:hidden;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;align-content:start}
 body.review-mobile-viewport #review:has(#next){padding-bottom:20px}
}
/* A correct answer stays visibly highlighted even with audio off or unavailable. */
#reviewAnswerSummary.is-correct [data-answer-language="english"]{color:#fff;background:var(--answer-english-fill);border-radius:8px;padding:4px 6px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
#reviewAnswerSummary.is-correct [data-answer-language="thai"]{color:#fff;background:var(--answer-thai-fill);border-radius:8px;padding:4px 6px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
#reviewAnswerSummary.is-correct[data-reading-language="english"] [data-answer-language="english"]:has(.is-speaking-word){background:#e8effa;color:var(--answer-english)}
#reviewAnswerSummary.is-correct .review-answer-word.is-speaking-word{color:#fff}
body.dark #reviewAnswerSummary.is-correct[data-reading-language="english"] [data-answer-language="english"]:has(.is-speaking-word){background:#24344e}

/* Match the English cue to the pronunciation underline; vivid red for Thai. */
#reviewAnswerSummary,body.dark #reviewAnswerSummary{
 --answer-english-fill:var(--accent);--answer-english-ring:color-mix(in srgb,var(--accent) 45%,transparent);
 --answer-english-glow:color-mix(in srgb,var(--accent) 20%,transparent);
 --answer-thai-fill:#E82127;--answer-thai-ring:#E8212766;--answer-thai-glow:#E8212733;
}
body.dark #reviewAnswerSummary.is-correct [data-answer-language="english"],
body.dark #reviewAnswerSummary[data-reading-language="english"] [data-answer-language="english"]:not(:has(.is-speaking-word)),
body.dark #reviewAnswerSummary.is-correct .review-answer-word.is-speaking-word,
body.dark #reviewAnswerSummary .review-answer-word.is-speaking-word{color:#07143F;text-shadow:none}
#review .practice-choices .choice-correct,#review .practice-choices .choice-correct:disabled{color:#000;opacity:1}
#review .practice-choices .choice-correct,#review .practice-choices .choice-correct:disabled{
 border:3px solid var(--brand-blue);background:#DCFCE7;outline:2px solid color-mix(in srgb,var(--brand-blue) 35%,transparent);outline-offset:2px;font-weight:650;
}
body.dark #review .practice-choices .choice-correct{border-color:var(--brand-blue);outline-color:color-mix(in srgb,var(--brand-blue) 35%,transparent)}
#review .practice-choices .choice-correct .choice-result-icon{
 width:32px;height:32px;border-radius:0;background:transparent;color:var(--brand-blue);box-shadow:none;opacity:1;
}
#review .practice-choices .choice-correct .choice-result-icon .control-icon{width:23px;height:23px;stroke-width:3.2}

/* A real sample of the selected pool before starting a scored session. */
#review .review-preview{margin:24px 0;padding:28px;border:1px solid var(--line);border-radius:20px;background:var(--panel);text-align:left}
#review .review-preview-intro{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:4px 0 24px;border-bottom:1px solid var(--line)}
#review .review-preview-eyebrow{color:var(--accent);font-size:13px;font-weight:650}
#review .review-preview-intro h2{font-size:clamp(24px,2.5vw,32px);line-height:1.45;margin:8px 0;letter-spacing:normal}
#review .review-preview-intro p{color:var(--muted);font-size:15px;margin:0}
#review .review-preview-count{flex-shrink:0;text-align:right;font-size:36px;font-weight:750;color:var(--accent);line-height:1.3}
#review .review-preview-count small{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:5px}
#review .review-preview-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:24px 0 14px}
#review .review-preview-heading h3{font-size:16px;margin:0}
#review .review-preview-heading>span{font-size:13px;color:var(--muted)}
#review .review-preview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
#review .review-preview-card{display:flex;flex-direction:column;min-width:0;padding:22px;border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:12px;background:linear-gradient(145deg,var(--soft),var(--panel) 65%)}
#review .review-preview-card-top{display:flex;justify-content:space-between;align-items:center;gap:8px;color:var(--muted);font-size:12px;margin-bottom:20px}
#review .review-preview-index{color:var(--accent);font-weight:750;font-variant-numeric:tabular-nums}
#review .review-preview-word{font-size:clamp(21px,2vw,27px);line-height:1.4;overflow-wrap:anywhere;margin:0 0 10px}
#review .review-preview-word .ss-highlight{color:var(--accent)}
#review .review-preview-meaning{font-size:16px;line-height:1.7;margin:0 0 22px;color:var(--text-body);overflow-wrap:anywhere}
#review .review-preview-card .audio-button{align-self:flex-start;margin-top:auto;font-size:13px;min-height:40px;padding:8px 10px;border:1px solid var(--line);background:var(--panel);color:var(--accent);gap:7px}
#review .review-preview-card .audio-button svg{width:18px;height:18px}
#review .review-preview-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
#review .review-preview-bottom p{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin:0}
#review .review-preview-bottom p svg{flex-shrink:0;width:18px;height:18px;color:var(--accent)}
#review .review-preview-bottom button{display:flex;align-items:center;justify-content:center;gap:18px;min-height:48px;white-space:nowrap;font-weight:650;padding:12px 20px}
@media(max-width:760px){#review .review-preview{padding:18px;margin-top:16px;border-radius:16px}#review .review-preview-intro{gap:12px;align-items:flex-start}#review .review-preview-count{font-size:26px}#review .review-preview-count small{font-size:10px}#review .review-preview-grid{grid-template-columns:1fr;gap:12px}#review .review-preview-card{padding:18px}#review .review-preview-card-top{margin-bottom:12px}#review .review-preview-word{font-size:24px}#review .review-preview-meaning{margin-bottom:14px}#review .review-preview-bottom{flex-direction:column;align-items:stretch;gap:14px}#review .review-preview-bottom button{width:100%}}
/* A quiet practice surface with one prompt and a small daily milestone. */
#review .review-daily{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px 20px;background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:16px 20px;margin:12px 0 18px;text-align:left}
#review .review-daily strong,#review .review-daily span{display:block}
#review .review-daily strong{font-size:19px;line-height:1.6}
#review .review-daily span{font-size:13px;color:var(--muted)}
#review .review-daily .review-focus-label{color:var(--accent);font-size:12px;font-weight:650;margin-bottom:3px}
#review .review-daily-count{text-align:right;align-self:center;white-space:nowrap}
#review .review-daily-count b{font-size:28px;color:var(--accent);font-variant-numeric:tabular-nums}
#review .review-daily-count small{font-size:14px;font-weight:400}
#review .review-daily progress{grid-column:1/-1;width:100%;height:8px;accent-color:var(--accent)}
#review .review-leave-focus{display:none}
body.review-focus-active .app{grid-template-columns:minmax(0,1fr)}
body.review-focus-active .app>aside,body.review-focus-active .user-toolbar{display:none!important}
body.review-focus-active .page.review-page{width:100%;max-width:1000px;margin:0 auto;padding:20px 24px}
#review.review-focus .review-controls{position:relative;box-shadow:none;margin:0 auto 12px;padding:14px 20px}
#review.review-focus .review-source-grid,#review.review-focus .review-source-select,#review.review-focus .review-filter-details{display:none!important}
#review.review-focus .review-controls-header{padding-right:120px;margin:0 0 8px}
#review.review-focus .review-controls-header .review-section-heading{font-size:16px;color:var(--muted)}
#review.review-focus .review-leave-focus{display:block;position:absolute;right:18px;top:12px;min-height:38px;padding:6px 12px;font-size:14px}
#review.review-focus .review-daily{margin:12px 0 8px}
#review.review-focus .review-settings-toggle{margin:0;min-height:32px;font-size:12px;padding:4px 8px}
#review.review-focus .review:not(.review-controls){margin:0 auto;box-shadow:none}
#review.review-focus .scroll-current{border:1px solid var(--line);border-radius:20px;padding:24px}
#review.review-focus .scroll-current .word{font-size:clamp(32px,4.5vw,54px);outline:none}
#review.review-focus .scroll-card{transform:none!important;opacity:1!important}
#review.review-focus .practice-choices button{min-height:64px;border-radius:14px}
@media(max-width:760px){body.review-focus-active .page.review-page{padding:12px}#review.review-focus .review-controls{padding:12px}#review .review-daily{padding:12px;gap:6px 10px}#review .review-daily strong{font-size:16px}#review .review-daily-count b{font-size:24px}#review.review-focus .scroll-current{padding:16px}#review.review-focus .review-leave-focus{right:10px;top:8px}#review .review-daily>div>span:last-child{font-size:12px}}
#review.review-focus #startReview,#review.review-focus .review-pool-count{display:none}
@media(max-width:760px){#review.review-focus .review-daily .review-focus-label,#review.review-focus .review-daily>div:first-child>span:last-child{display:none}#review.review-focus .review-daily strong{font-size:14px}#review.review-focus .review-daily{padding:10px;margin:10px 0 6px}#review.review-focus .review-daily-count b{font-size:22px}#review.review-focus .review-controls-header{min-height:32px;margin:0}#review.review-focus .review-controls-header .review-section-heading{font-size:15px}#review.review-focus .scroll-current .review-word-line{margin:8px 0}#review.review-focus .scroll-current #reviewAnswerSummary.is-pending{min-height:0;height:0;padding:0;margin:0}}

/* Back remains a named 44px touch target; inline Next stays in Safari scroll flow. */
.review-launch{position:fixed;inset:0;z-index:1000;background:var(--panel);display:grid;place-items:center;overflow:hidden}
.review-launch-logo{animation:review-logo-launch .62s cubic-bezier(.22,.7,.25,1) both}
.review-launch-logo .engrnote-logo{transform:none;pointer-events:none}
.review-launch-logo .engrnote-logo--custom img{width:140px;height:100px;object-fit:contain}
.review-launch-logo img{filter:none}
body.dark .review-launch-logo img{filter:brightness(0) invert(1)}
@keyframes review-logo-launch{0%{opacity:0;transform:scale(.55)}28%{opacity:1;transform:scale(1.13)}52%{opacity:1;transform:scale(.96)}72%{opacity:1;transform:scale(1)}100%{opacity:0;transform:scale(3)}}
#review .review-preview-interactive .review-preview-heading{margin-top:0;align-items:flex-start}
#review .review-preview-interactive h2{font-size:clamp(23px,2.4vw,30px);margin:6px 0}
#review .review-preview-interactive .review-preview-heading p{font-size:14px;color:var(--muted);margin:0}
#review .review-preview-sample-label{white-space:nowrap;border:1px solid var(--line);border-radius:30px;padding:6px 12px;font-size:12px}
#review .review-preview-demo{border:1px solid var(--line);border-radius:20px;padding:24px;background:var(--panel)}
#review .review-preview-demo-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
#review .review-preview-prompt{display:flex;align-items:center;justify-content:center;gap:14px;margin:28px 0 12px;min-width:0}
#review .review-preview-open-word{font-size:clamp(32px,4vw,54px);font-weight:750;line-height:1.45;background:transparent;border:0;padding:4px 8px;min-width:0;overflow-wrap:anywhere;color:var(--text-heading)}
#review .review-preview-open-word:hover{background:var(--soft)}
#review .review-preview-open-word .ss-highlight{color:var(--accent)}
#review .review-preview-prompt .audio-button{padding:8px;flex-shrink:0;background:transparent;border:0;color:var(--accent)}
#review .review-preview-check{display:grid;place-items:center;flex-shrink:0;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;color:var(--muted)}
#review .review-preview-check svg{width:22px;height:22px}
#review .review-preview-question{text-align:center;font-size:14px;color:var(--muted);margin:0 0 42px}
#review .review-preview-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
#review .review-preview-choices button{min-height:60px;white-space:normal;overflow-wrap:anywhere;border-radius:14px;font-weight:600;color:var(--text-body);background:transparent}
#review .review-preview-choices button:hover{border-color:var(--accent);background:var(--soft);color:var(--accent)}
#review .review-preview-demo-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
#review .review-preview-demo-footer>span{display:flex;align-items:center;gap:7px}
#review .review-preview-demo-footer svg{width:17px;height:17px;flex-shrink:0}
#review .review-preview-demo-footer button{min-height:40px;padding:7px 12px;border:0;background:var(--soft);color:var(--accent);white-space:nowrap}
@media(max-width:760px){#review .review-preview-demo{padding:16px}#review .review-preview-check{display:none}#review .review-preview-prompt{gap:4px;margin-top:24px}#review .review-preview-choices{grid-template-columns:1fr}#review .review-preview-question{margin-bottom:26px}#review .review-preview-demo-footer{align-items:flex-start;flex-direction:column}#review .review-preview-sample-label{display:none}}
@media(prefers-reduced-motion:reduce){.review-launch{display:none}.review-launch-logo{animation:none}}
#review .review-preview-minimal{padding:0;border:0;background:transparent}
#review .review-preview-minimal .review-preview-demo{padding:30px}
#review .review-preview-minimal .review-preview-prompt{margin:20px 0 72px}
#review .scroll-current>.review-word-line>.word{flex:1 1 0%;overflow-wrap:anywhere;word-break:normal;white-space:normal;overflow:visible}
#review .review-word-line .hint-source{display:block;max-width:100%;white-space:normal;overflow-wrap:anywhere;word-break:normal;text-wrap:balance}
#review .review-word-line .hint-word{max-width:100%;min-width:0}
#review .scroll-current #reviewAnswerSummary{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;overflow:visible}
#review #reviewAnswerSummary .review-answer-part{flex:0 1 auto;max-width:100%;min-width:0;white-space:normal;word-break:normal;overflow-wrap:anywhere}
#review .scroll-current #reviewAnswerSummary.is-stacked{display:grid;grid-template-columns:minmax(0,1fr);justify-items:center;gap:8px}
#review #reviewAnswerSummary.is-stacked>span[aria-hidden=true]{display:none}
#review #reviewAnswerSummary .review-answer-word{max-width:100%;overflow-wrap:anywhere;white-space:normal}
#review .practice-choices .choice-answer-text{white-space:normal;overflow-wrap:anywhere;word-break:normal;overflow:visible;max-width:100%;text-wrap:balance}
#review .review-word-line .hint-source,#review .review-preview-open-word{word-spacing:.12em;letter-spacing:normal}
#review #reviewAnswerSummary [data-answer-language="english"]{word-spacing:.12em;letter-spacing:normal}
#review #reviewAnswerSummary [data-answer-language="english"] .review-answer-word{padding-inline:0;margin-inline:0}
#review #reviewAnswerSummary [data-answer-language="english"] .review-answer-word.is-speaking-word{padding-inline:0;margin-inline:0}
#review #reviewAnswerSummary .review-answer-word,
#review #reviewAnswerSummary .review-answer-word.is-speaking-word{
 transform:none;animation:none;transition:color .14s,background-color .14s;white-space:nowrap;word-break:normal;overflow-wrap:normal;
}
#review #reviewAnswerSummary .review-answer-word.is-speaking-word{box-shadow:inset 0 0 0 2px var(--answer-english-ring);text-shadow:none}
@media(max-width:760px){#review .review-preview-minimal .review-preview-demo{padding:20px}#review .review-preview-minimal .review-preview-prompt{margin:12px 0 40px}}
#review.review-focus .review-leave-focus{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;min-height:44px;padding:10px;border-radius:50%}
#review.review-focus .review-controls-header{padding-right:52px;min-height:44px}
#review.review-focus .scroll-card{will-change:auto}

/* Keep pronunciation immediately after the prompt; the known control stays separate. */
#review .review-word-line>.review-word-prompt{display:flex;align-items:center;justify-content:center;gap:12px;flex:1 1 0%;min-width:0}
#review .review-word-prompt>.word{flex:0 1 auto;min-width:0;margin:0!important;overflow-wrap:anywhere;word-break:normal;white-space:normal;overflow:visible}