:root{color-scheme:light only;--bg-color:#eef3ff;--primary-blue:#19a7a0;--primary-pink:#e5566a;--hint-primary-text:#b4233b;--hint-secondary-text:#006c68;--light-pink:#fff5f6;--border-pink:#ffd3d8;--teal-main:var(--primary-blue);--teal-dark:var(--hover-blue);--hover-blue:#0f8e87;--text-color:#1f2b3d;--heading-text:#1e4965;--muted-text:#5a7089;--border-main:#d2dfeef2;--surface-white:#fff;--container-bg:#ffffffe0;--card-bg:linear-gradient(180deg,#fffcf9fa,#f6fafffa);--color-y-0:#e5566a29;--color-y-50:#7f7e8529;--color-y-100:#19a7a029;--opt-block-bg:linear-gradient(90deg,var(--color-y-100)0%,var(--color-y-50)100%);--option-bg:#f8fcff;--option-card-text:#334155;--option-hover-bg:var(--btn-secondary-bg);--option-hover-text:#fff;--option-selected-bg:var(--btn-primary-bg);--panel-bg:var(--surface-neutral-soft);--surface-neutral-soft:#f8fcff;--success-bg:#dff9e8;--success-text:#177245;--success-border:#1772453d;--error-bg:#ffe5e8;--error-text:#b42336;--error-border:#b423363d;--success-green:#177245;--danger-red:#b42336;--choice-success-text:#007180;--choice-error-text:#d11553;--progress-dot-font-weight:600;--radius-sm:12px;--radius-md:18px;--radius-lg:22px;--accent-height:6px;--header-area-gap:2px;--control-small-size:50px;--control-play-width:80px;--control-bar-gap:12px;--color-on-accent:#fff;--color-transparent:transparent;--shadow-diffuse:0 22px 50px #1c3e5f29;--shadow-inset:inset 0 1px 0 #fffc;--focus-border:#19a7a080;--focus-shadow:0 0 0 4px #19a7a01f;--accent-gradient:linear-gradient(90deg,#e91e63,#00acc1);--heading-gradient:linear-gradient(120deg,#2f435b 0%,#5c7692 52%,#3d5873 100%);--btn-primary-bg:linear-gradient(130deg,#e91e63 0%,#756592 100%);--btn-secondary-bg:linear-gradient(130deg,#756592 0%,#00acc1 100%);--btn-ghost-bg:#ffffffc2;--focus-action-bg:#ffffffdb;--focus-action-hover-bg:#19a7a01a;--focus-action-text:var(--primary-blue);--focus-action-border:#19a7a05c;--focus-action-shadow:0 10px 24px #19a7a024;--toggle-width:140px;--toggle-height:36px;--toggle-knob:28px;--toggle-shift:102px;--toggle-text-youth-left:10px;--toggle-text-elegant-left:-10px;--toggle-slider-bg:linear-gradient(135deg,#e5566a29 0%,#19a7a029 100%);--toggle-slider-checked-bg:var(--btn-secondary-bg);--toggle-slider-border:#e5566a40;--toggle-slider-checked-border:#c8d6e5;--toggle-slider-shadow:inset 0 1px 3px #0000000d;--toggle-slider-checked-shadow:inset 0 2px 4px #0000001a,0 5px 12px #2a5c7940;--toggle-knob-bg:var(--light-pink);--toggle-knob-border:transparent;--toggle-knob-shadow:0 2px 4px #0000001f;--toggle-text-color:var(--muted-text);--toggle-text-checked-color:var(--color-on-accent);--font-weight-strong:700;--spacing-sm:8px;--spacing-md:16px;--adaptive-progress-height:calc(var(--accent-height)*3);--adaptive-progress-gap:calc(var(--accent-height)/2);--adaptive-progress-segment-radius:var(--accent-height);--adaptive-progress-border-width:calc(var(--accent-height)/6);--adaptive-progress-slot-width:calc((100% - (24*var(--adaptive-progress-gap)))/25);--adaptive-progress-motion:.22s ease;--adaptive-progress-empty-bg:var(--surface-white);--adaptive-progress-empty-text:var(--muted-text);--adaptive-progress-active-bg:var(--muted-text);--adaptive-progress-active-text:var(--color-on-accent);--adaptive-progress-done-bg:var(--success-bg);--adaptive-progress-done-text:var(--muted-text);--adaptive-progress-done-border:var(--border-main);--adaptive-progress-warn-bg:var(--light-pink);--adaptive-progress-warn-text:var(--muted-text);--adaptive-progress-warn-border:var(--border-main);--progress-hover-bg:#19a7a033;--shell-background-image:radial-gradient(circle at 12% 10%,#24bfb529,transparent 36%),radial-gradient(circle at 88% 84%,#ffa07a38,transparent 35%),linear-gradient(165deg,#f3f7ff 0%,#f7fbff 48%,#fffaf6 100%)}*{box-sizing:border-box}html{scrollbar-gutter:stable;min-height:100%}body{background:var(--shell-background-image);min-height:100dvh;color:var(--text-color);justify-content:center;align-items:center;margin:0;padding:clamp(12px,2.4dvh,28px) clamp(10px,2vw,24px);font-family:Be Vietnam Pro,sans-serif;transition:background .25s,color .25s;display:flex}button,input{font:inherit}button:focus-visible,input:focus-visible{box-shadow:var(--focus-shadow);outline-offset:3px;outline:0}.bubbles{z-index:-1;pointer-events:none;background:0 0;position:fixed;inset:0}.app-container{border:1px solid var(--border-main);border-radius:var(--radius-lg);background:var(--container-bg);width:min(900px,100%);min-height:calc(100dvh - clamp(24px,4.8dvh,56px));box-shadow:var(--shadow-diffuse);backdrop-filter:blur(16px);flex-direction:column;margin:auto;padding:clamp(16px,2.4vw,28px);display:flex;position:relative;overflow:hidden}.app-container:before{height:var(--accent-height,6px);background:var(--accent-gradient);content:"";position:absolute;inset:0 0 auto}.header-area{text-align:center;margin-bottom:var(--header-area-gap)}.dec-ui-game-title{background:var(--accent-gradient);-webkit-text-fill-color:transparent;color:#0000;letter-spacing:.0625rem;text-wrap:balance;zoom:.7;-webkit-background-clip:text;background-clip:text;margin:.25rem 0;font-size:clamp(1.8rem,2.5vw,2.2rem);font-weight:800;line-height:1.2}.control-center{justify-content:center;align-items:center;display:flex}.progress-area-row{justify-content:space-between;align-items:center;gap:8px;width:100%;margin:clamp(4px,.8dvh,8px) 0 clamp(8px,1.4dvh,14px);display:flex}.focus-toggle-btn{border:1px solid var(--focus-action-border);border-radius:var(--radius-sm);background:var(--focus-action-bg);height:32px;color:var(--focus-action-text);box-sizing:border-box;cursor:pointer;white-space:nowrap;box-shadow:var(--focus-action-shadow);flex-shrink:0;justify-content:center;align-items:center;gap:6px;padding:0 10px;font-size:.75rem;font-weight:500;line-height:1;transition:all .2s;display:inline-flex}.focus-toggle-btn:hover{background:var(--focus-action-hover-bg)}.theme-toggle-switch{vertical-align:middle;flex-shrink:0;width:104px;height:32px;margin:0;display:inline-block;position:relative}.theme-toggle-switch input{display:none}.theme-toggle-switch .slider{cursor:pointer;border:1px solid var(--toggle-slider-border);background:var(--toggle-slider-bg);box-shadow:var(--toggle-slider-shadow);border-radius:32px;align-items:center;transition:all .4s;display:flex;position:absolute;inset:0;overflow:hidden}.theme-toggle-switch .slider:before{border:2px solid var(--toggle-knob-border);background-color:var(--toggle-knob-bg);box-sizing:border-box;width:24px;height:24px;box-shadow:var(--toggle-knob-shadow);content:"";border-radius:50%;transition:transform .4s,border-color .4s,background-color .4s,box-shadow .4s;position:absolute;bottom:3px;left:3px}.theme-toggle-switch .slider-text{width:100%;color:var(--toggle-text-color);font-family:Be Vietnam Pro,sans-serif;font-size:.72rem;font-weight:var(--font-weight-strong);pointer-events:none;text-align:center;text-transform:uppercase;user-select:none;transition:all .4s;position:absolute;left:8px}.theme-toggle-switch input:checked+.slider{border-color:var(--toggle-slider-checked-border);background:var(--toggle-slider-checked-bg);box-shadow:var(--toggle-slider-checked-shadow)}.theme-toggle-switch input:checked+.slider .slider-text{color:var(--toggle-text-checked-color);left:-8px}.theme-toggle-switch input:checked+.slider:before{transform:translate(72px)}.progress-container{background:0 0;flex:auto;place-content:center;gap:3px;width:100%;margin:0;display:flex;flex-wrap:wrap!important}.progress-container.wrap-mode{flex-wrap:wrap!important;height:auto!important}.progress-container.wrap-mode .progress-segment,.progress-segment{height:var(--adaptive-progress-height);border:var(--adaptive-progress-border-width,1px)solid var(--border-main);border-radius:var(--adaptive-progress-segment-radius);background:var(--adaptive-progress-empty-bg);color:var(--adaptive-progress-empty-text);appearance:none;cursor:pointer;font-family:inherit;font-size:.65rem;font-weight:var(--font-weight-strong);transition:background var(--adaptive-progress-motion),border-color var(--adaptive-progress-motion),color var(--adaptive-progress-motion),box-shadow var(--adaptive-progress-motion),transform var(--adaptive-progress-motion);user-select:none;justify-content:center;align-items:center;padding:0;display:flex;flex:0 0 var(--adaptive-progress-slot-width)!important;max-width:var(--adaptive-progress-slot-width)!important;box-sizing:border-box!important}.progress-segment:hover:not(.active){background-color:var(--progress-hover-bg);transform:translateY(-1px)}.progress-segment:focus-visible{box-shadow:var(--focus-shadow);outline:none}.progress-segment.disabled{cursor:default;pointer-events:none}.progress-segment.done,.progress-segment.correct{background:var(--adaptive-progress-done-bg)!important;color:var(--adaptive-progress-done-text)!important;border-color:var(--adaptive-progress-done-border,var(--border-main))!important}.progress-segment.warn,.progress-segment.wrong{background:var(--adaptive-progress-warn-bg)!important;color:var(--adaptive-progress-warn-text)!important;border-color:var(--adaptive-progress-warn-border,var(--border-main))!important}.progress-segment.active,.progress-segment.current{border-color:var(--adaptive-progress-active-bg)!important;background:var(--adaptive-progress-active-bg)!important;color:var(--adaptive-progress-active-text)!important}.speak-card{border:1px solid var(--border-main);border-radius:var(--radius-md);background:var(--card-bg);min-height:0;box-shadow:var(--shadow-inset);flex-direction:column;flex:auto;padding:clamp(20px,3.2vw,34px);display:flex;position:relative;overflow:hidden}.speak-card-header{justify-content:space-between;align-items:center;width:100%;min-height:32px;margin-bottom:clamp(6px,1.2dvh,12px);display:flex}.question-kicker,.transcript-label{color:var(--teal-dark);letter-spacing:.08em;font-size:.76rem;font-weight:800}.question-kicker{margin:0}.question-text{color:var(--heading-text);text-wrap:balance;margin:0;font-size:clamp(1.35rem,3vw,2.1rem);line-height:1.35;transition:background-image .3s,color .3s}.question-text.dec-text-primary{background-image:var(--btn-primary-bg);-webkit-text-fill-color:transparent;color:#0000;-webkit-background-clip:text;background-clip:text}.question-text.dec-text-secondary{background-image:var(--btn-secondary-bg);-webkit-text-fill-color:transparent;color:#0000;-webkit-background-clip:text;background-clip:text}.help-panel,.transcript-panel{border:1px solid var(--border-main);border-radius:var(--radius-sm);background:var(--panel-bg);box-shadow:var(--shadow-inset);margin-top:clamp(16px,2.4dvh,24px);padding:14px 16px}.help-panel{border-color:var(--focus-border);color:var(--text-color);font-weight:600}.help-line{margin:0}.help1-line{color:var(--hint-secondary-text)}.help2-line{color:var(--hint-primary-text);margin-top:.45rem}.help1-line.help-color-primary,.help2-line.help-color-primary{color:var(--hint-primary-text)}.help1-line.help-color-secondary,.help2-line.help-color-secondary{color:var(--hint-secondary-text)}.is-hidden{display:none}.transcript-text{min-height:28px;color:var(--heading-text);margin:7px 0 0;font-weight:700}.result-message{min-height:26px;color:var(--muted-text);text-align:center;margin:auto 0 0;padding-top:clamp(16px,2dvh,22px);font-weight:800}.control-bar{justify-content:space-between;align-items:center;gap:var(--control-bar-gap);min-height:80px;padding-top:var(--spacing-md);margin-top:clamp(14px,2dvh,22px);display:flex}.control-left,.control-right{align-items:center;gap:var(--control-bar-gap);flex:1;display:flex}.control-left{justify-content:flex-start}.control-right{justify-content:flex-end}.control-center{gap:var(--control-bar-gap);flex:none}.btn-control,.btn-restart{border:calc(var(--accent-height)/6)solid var(--color-transparent);border-radius:calc(var(--toggle-height) - var(--toggle-knob) + var(--accent-height));color:var(--color-on-accent);box-shadow:var(--toggle-knob-shadow);cursor:pointer;background-repeat:no-repeat;background-size:100% 100%;background-origin:border-box;background-clip:border-box;justify-content:center;align-items:center;font-weight:800;transition:background .2s,color .2s,box-shadow .2s,transform .2s,filter .2s,opacity .2s;display:inline-flex}.btn-control:hover,.btn-restart:hover{filter:brightness(1.04);transform:translateY(-1px)}.btn-control:active,.btn-restart:active{box-shadow:none;transform:translateY(2px)}.btn-control:disabled{cursor:not-allowed;opacity:.45;transform:none}.btn-nav{width:var(--control-small-size);height:var(--control-small-size);background-image:var(--btn-secondary-bg);color:var(--color-on-accent);padding:0;font-size:1.25rem}.btn-help{min-width:calc(var(--control-small-size)*2 + var(--control-bar-gap)/2);height:var(--control-small-size);padding:0 var(--spacing-md);background-image:var(--btn-primary-bg)}.btn-restart{background-image:var(--btn-primary-bg)}.modal-overlay{z-index:20;background:#0f172ab8;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-overlay.is-hidden{display:none}.modal-content{border:1px solid var(--border-main);border-radius:var(--radius-lg);background:var(--surface-white);width:min(440px,100%);color:var(--text-color);box-shadow:var(--shadow-diffuse);text-align:center;padding:28px}.score-title{color:var(--heading-text);margin:0;font-size:1.35rem}.score-message{color:var(--muted-text);margin:16px 0 22px;line-height:1.6}.btn-restart{min-height:46px;padding:10px 20px}body[data-theme=elegant]{color-scheme:dark only;--bg-color:#0b1524;--container-bg:#fcfdffed;--card-bg:#f9fbfd;--color-e-0:#5b748d29;--color-e-50:#526b8329;--color-e-100:#4a637d29;--opt-block-bg:linear-gradient(90deg,var(--color-e-100)0%,var(--color-e-50)100%);--option-bg:#f9fbfd;--option-card-text:#3f5268;--option-hover-bg:var(--btn-secondary-bg);--option-hover-text:#fff;--option-selected-bg:var(--btn-primary-bg);--panel-bg:var(--surface-neutral-soft);--primary-blue:#5e738a;--teal-main:var(--primary-blue);--hover-blue:#4b627a;--heading-text:#3d536c;--text-color:#2a3d52;--muted-text:#4a6077;--border-main:#cdd8e4eb;--surface-white:#fff;--surface-neutral-soft:#f9fbfd;--light-pink:#f2f5f8;--success-green:#455a71;--danger-red:#55697d;--choice-success-text:#3e4c5b;--choice-error-text:#4f657d;--shadow-diffuse:0 22px 50px #232f3f2e;--shadow-inset:inset 0 1px 0 #fffc;--focus-border:#5a6e84b3;--focus-shadow:0 0 0 4px #5a6e8426;--accent-gradient:linear-gradient(90deg,#7e95ac,#60758d);--heading-gradient:linear-gradient(120deg,#3d536c 0%,#6a839e 52%,#4a637d 100%);--btn-primary-bg:linear-gradient(130deg,#7e95ac 0%,#6f859c 100%);--btn-secondary-bg:linear-gradient(130deg,#6f859c 0%,#60758d 100%);--toggle-slider-bg:linear-gradient(130deg,#5c7086 0%,#4a5c70 100%);--toggle-slider-checked-bg:linear-gradient(130deg,#50667f 0%,#3d5066 100%);--toggle-slider-border:#788b9d;--toggle-slider-checked-border:#788b9d;--toggle-knob-bg:#4a5c70;--adaptive-progress-empty-bg:#ffffff14;--adaptive-progress-empty-text:#94a3b8;--adaptive-progress-active-bg:#475569;--adaptive-progress-active-text:#fff;--success-bg:#edf2f6;--success-text:#455a71;--success-border:#d5dee7;--error-bg:#f1f3f6;--error-text:#55697d;--error-border:#d9e1e9;--adaptive-progress-done-bg:var(--success-bg);--adaptive-progress-done-text:var(--muted-text);--adaptive-progress-done-border:var(--border-main);--adaptive-progress-warn-bg:var(--light-pink);--adaptive-progress-warn-text:var(--muted-text);--adaptive-progress-warn-border:var(--border-main);--shell-background-image:radial-gradient(circle at 10% 12%,#84a6d275,transparent 33%),radial-gradient(circle at 88% 86%,#6a8db76b,transparent 31%),radial-gradient(circle at 52% 6%,#46689347,transparent 44%),linear-gradient(150deg,#08111c 0%,#132036 43%,#2a4667 100%)}body[data-theme=elegant] .slider{background:var(--toggle-slider-bg)}body.focus-mode{padding:clamp(10px,2dvh,24px)}body.focus-mode .app-container{flex-direction:column;width:min(1280px,100%);min-height:calc(100dvh - clamp(20px,4dvh,48px));display:flex}body.focus-mode .speak-card{justify-content:center;gap:clamp(12px,1.8dvh,22px);padding:clamp(28px,3.8vw,52px);overflow:auto}body.focus-mode .question-kicker{letter-spacing:.1em;margin:0 0 clamp(8px,1.2dvh,16px);font-size:clamp(.92rem,1.25vw,1.2rem)}body.focus-mode .question-text{margin:0;font-size:clamp(2.2rem,3.8vw,3.6rem);font-weight:800;line-height:1.3}body.focus-mode .transcript-panel{border-radius:var(--radius-md);margin-top:clamp(18px,2.6dvh,32px);padding:clamp(16px,2.2dvh,24px) clamp(20px,2vw,30px)}body.focus-mode .transcript-label{font-size:clamp(.88rem,1.15vw,1.1rem)}body.focus-mode .transcript-text{margin-top:8px;font-size:clamp(1.35rem,2.2vw,2rem);line-height:1.45}body.focus-mode .help-panel{border-radius:var(--radius-md);margin-top:clamp(16px,2.2dvh,26px);padding:clamp(16px,2.2dvh,24px) clamp(20px,2vw,30px);font-size:clamp(1.3rem,2.1vw,1.85rem)}body.focus-mode .result-message{padding-top:clamp(16px,2.2dvh,26px);font-size:clamp(1.2rem,1.7vw,1.6rem)}body.focus-mode .control-bar{min-height:86px;margin-top:clamp(14px,2dvh,24px)}body.focus-mode .btn-help{min-height:48px;padding-inline:18px;font-size:.95rem}body.focus-mode .btn-nav{width:50px;height:50px}@media (width<=640px){body{padding:10px 8px}.app-container,.speak-card{padding:16px}.control-center{gap:6px}.btn-help{min-width:82px;min-height:42px;padding-inline:8px;font-size:.78rem}.btn-nav{width:42px;height:42px}}.listening-quiz-card{gap:clamp(10px,1.6dvh,18px)}.listening-quiz-question{text-align:center;text-wrap:pretty;flex-direction:column;justify-content:center;align-items:center;width:100%;min-height:max(112px,2.7em + 20px);font-size:1.85rem;font-weight:800;line-height:1.45;transition:filter .24s,opacity .24s;display:flex}.question-line{width:100%;display:block}.listening-quiz-question.is-blurred{filter:blur(14px);opacity:0;visibility:hidden;pointer-events:none;user-select:none}.blank-token{border-bottom:4px solid var(--teal-main);min-width:92px;color:var(--teal-main);-webkit-text-fill-color:var(--teal-main);margin:0 5px;padding:0 8px 4px;display:inline-block}.answer-revealed{font-weight:800;color:var(--danger-red)!important;-webkit-text-fill-color:var(--danger-red)!important}.options-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;width:min(760px,100%);margin:1.25rem auto 0;display:grid}.option-button{border:1px solid var(--border-main);border-radius:var(--radius-sm);background:var(--option-bg);min-height:58px;color:var(--option-card-text);box-shadow:none;cursor:pointer;text-align:left;align-items:center;gap:10px;padding:12px 15px;font-size:1.55rem;font-weight:600;transition:background .2s,border-color .2s,color .2s,transform .2s,box-shadow .2s;display:flex}.result-message.is-empty{display:none}.option-button:hover:not(:disabled){color:var(--option-hover-text);border-color:#0000;transform:translateY(-2px);background:var(--option-hover-bg)!important}.option-button:focus-visible{box-shadow:var(--focus-shadow);outline:none}.option-button:disabled{cursor:default;opacity:.86}.option-button:hover:not(:disabled) .option-number{background:var(--adaptive-progress-active-bg);border-color:var(--adaptive-progress-active-bg);color:var(--adaptive-progress-active-text)}.option-number,.help-key{border:1px solid var(--border-main);border-radius:var(--adaptive-progress-segment-radius);background:var(--adaptive-progress-empty-bg);color:var(--adaptive-progress-empty-text);box-shadow:none;transition:background var(--adaptive-progress-motion),border-color var(--adaptive-progress-motion),color var(--adaptive-progress-motion);flex:none;justify-content:center;align-items:center;font-weight:600;display:inline-flex}.option-number{width:28px;height:28px;font-size:.88rem;font-weight:600}.help-key{background:var(--btn-secondary-bg);min-width:24px;height:24px;color:var(--color-on-accent);border:0;border-radius:8px;padding:0 5px;font-size:.75rem;font-weight:800;transition:none}.option-button.correct{background-image:var(--btn-secondary-bg);color:var(--option-hover-text);border-color:#0000}.option-button.wrong{background-image:var(--btn-primary-bg);color:var(--option-hover-text);border-color:#0000}.option-button.help-correct{border-color:var(--danger-red);color:var(--danger-red)}.option-button.correct .option-number,.option-button.help-correct .option-number{background:var(--adaptive-progress-done-bg);color:var(--adaptive-progress-done-text);border-color:var(--adaptive-progress-done-border)}.option-button.wrong .option-number{background:var(--adaptive-progress-warn-bg);color:var(--adaptive-progress-warn-text);border-color:var(--adaptive-progress-warn-border)}.btn-play{width:var(--control-play-width);min-width:var(--control-play-width);height:var(--control-play-width);background-image:var(--btn-primary-bg);box-shadow:var(--toggle-knob-shadow);z-index:5;border-radius:50%;margin:0 10px;padding:0;font-size:32px;position:relative}.btn-play:hover{transform:scale(1.05)}.shortcut-hint{color:var(--muted-text);text-align:right;font-size:.72rem;font-weight:700}.shortcut-hint kbd{border:1px solid var(--border-main);background:var(--surface-neutral-soft);color:var(--heading-text);font:inherit;border-radius:5px;padding:2px 5px;font-size:.68rem}body.focus-mode .listening-quiz-question{min-height:clamp(150px,24dvh,280px)}body.focus-mode .options-grid{gap:18px;width:min(880px,100%)}@media (width<=640px){.options-grid{grid-template-columns:1fr}.control-right{justify-content:center;width:100%}.shortcut-hint{text-align:center}}html,body{height:100%;overflow:hidden}body{box-sizing:border-box;align-items:stretch;height:100dvh;min-height:100dvh;padding:10px clamp(8px,1.4vw,16px)}.app-container,body:not(.focus-mode) .app-container{height:100%;min-height:0;max-height:100%;margin:0 auto}body:not(.focus-mode) .speak-card{min-height:0}.focus-progress-row{display:none}body.focus-mode{justify-content:flex-start;align-items:center;width:100vw;height:100dvh;min-height:100dvh;padding:10px;overflow:hidden}body.focus-mode .app-container{border-radius:var(--radius-lg);width:100%;max-width:100%;height:100%;min-height:0;box-shadow:none;margin:0;padding:16px 20px;overflow:hidden}body.focus-mode .header-area,body.focus-mode .progress-area-row{display:none!important}body.focus-mode .focus-progress-row{flex:none;justify-content:flex-start;align-items:center;width:100%;min-height:32px;margin-bottom:8px;display:flex!important}body.focus-mode .focus-progress-row .progress-container{flex:auto;min-width:0;margin:0}body.focus-mode .focus-toggle-btn{border-radius:999px;height:auto;padding:8px 16px;font-size:.85rem;font-weight:500;margin:0!important}body.focus-mode .speak-card{--focus-zoom-scale:1;--focus-card-padding-block:12px;--focus-card-padding-inline:16px;--focus-question-font-size:1.36rem;--focus-option-font-size:1.12rem;--focus-option-padding-block:8px;--focus-option-padding-inline:12px;--focus-option-gap:16px;--focus-options-margin-top:18px;--focus-option-radius:10px;min-height:0;padding:calc(var(--focus-card-padding-block)*var(--focus-zoom-scale))calc(var(--focus-card-padding-inline)*var(--focus-zoom-scale));flex:auto;justify-content:flex-start;gap:clamp(12px,1.8dvh,22px);overflow:hidden}body.focus-mode .listening-quiz-card[data-focus-zoom="1.00"]{--focus-zoom-scale:1}body.focus-mode .listening-quiz-card[data-focus-zoom="1.05"]{--focus-zoom-scale:1.05}body.focus-mode .listening-quiz-card[data-focus-zoom="1.10"]{--focus-zoom-scale:1.1}body.focus-mode .listening-quiz-card[data-focus-zoom="1.15"]{--focus-zoom-scale:1.15}body.focus-mode .listening-quiz-card[data-focus-zoom="1.20"]{--focus-zoom-scale:1.2}body.focus-mode .listening-quiz-card[data-focus-zoom="1.25"]{--focus-zoom-scale:1.25}body.focus-mode .listening-quiz-card[data-focus-zoom="1.30"]{--focus-zoom-scale:1.3}body.focus-mode .listening-quiz-card[data-focus-zoom="1.35"]{--focus-zoom-scale:1.35}body.focus-mode .listening-quiz-card[data-focus-zoom="1.40"]{--focus-zoom-scale:1.4}body.focus-mode .listening-quiz-card[data-focus-zoom="1.45"]{--focus-zoom-scale:1.45}body.focus-mode .listening-quiz-card[data-focus-zoom="1.50"]{--focus-zoom-scale:1.5}body.focus-mode .listening-quiz-card[data-focus-zoom="1.55"]{--focus-zoom-scale:1.55}body.focus-mode .listening-quiz-card[data-focus-zoom="1.60"]{--focus-zoom-scale:1.6}body.focus-mode .listening-quiz-card[data-focus-zoom="1.65"]{--focus-zoom-scale:1.65}body.focus-mode .listening-quiz-card[data-focus-zoom="1.70"]{--focus-zoom-scale:1.7}body.focus-mode .listening-quiz-card[data-focus-zoom="1.75"]{--focus-zoom-scale:1.75}body.focus-mode .listening-quiz-card[data-focus-zoom="1.80"]{--focus-zoom-scale:1.8}body.focus-mode .listening-quiz-card[data-focus-zoom="1.85"]{--focus-zoom-scale:1.85}body.focus-mode .listening-quiz-card[data-focus-zoom="1.90"]{--focus-zoom-scale:1.9}body.focus-mode .listening-quiz-card[data-focus-zoom="1.95"]{--focus-zoom-scale:1.95}body.focus-mode .listening-quiz-card[data-focus-zoom="2.00"]{--focus-zoom-scale:2}body.focus-mode .listening-quiz-card[data-focus-zoom="2.05"]{--focus-zoom-scale:2.05}body.focus-mode .listening-quiz-question{min-height:clamp(150px,24dvh,280px);font-size:calc(var(--focus-question-font-size)*var(--focus-zoom-scale));font-weight:800;line-height:1.3}body.focus-mode .options-grid{gap:calc(var(--focus-option-gap)*var(--focus-zoom-scale));width:100%;margin-top:calc(var(--focus-options-margin-top)*var(--focus-zoom-scale))}body.focus-mode .option-button{padding:calc(var(--focus-option-padding-block)*var(--focus-zoom-scale))calc(var(--focus-option-padding-inline)*var(--focus-zoom-scale));font-size:calc(var(--focus-option-font-size)*var(--focus-zoom-scale));border-radius:var(--focus-option-radius)}body.focus-mode .control-bar{flex:none;width:100%;min-height:86px;margin-top:12px;padding-top:12px}body.focus-mode .control-right{display:flex}body.focus-mode .zoom-pending{visibility:hidden}@media (width<=640px){body{padding:10px 8px}body.focus-mode{padding:8px}body.focus-mode .app-container{padding:12px}body.focus-mode .speak-card{padding:18px 14px}}.listening-quiz-card{justify-content:flex-start;padding-top:clamp(12px,1.4dvh,18px);overflow:hidden auto}.result-message{min-height:clamp(52px,8dvh,92px);color:var(--muted-text);text-align:left;overflow-wrap:anywhere;flex:none;margin-top:auto;margin-bottom:0;padding-top:clamp(12px,1.8dvh,18px);font-size:1.32rem;font-weight:400;line-height:1.4}.result-message .result-status,.result-message .result-explanation{display:block}.result-message .result-status{font-weight:800}.result-message .result-explanation{margin-top:4px;font-weight:400}.result-message.success{color:var(--choice-success-text)}.result-message.error{color:var(--choice-error-text)}body.focus-mode .listening-quiz-card{justify-content:flex-start;padding-top:clamp(12px,1.8dvh,22px);overflow:hidden auto}body.focus-mode .result-message{min-height:clamp(64px,9dvh,108px)}@media (width<=640px){.control-bar{flex-wrap:wrap}.control-left,.control-center{flex:none}.control-center{margin-inline:auto}.control-right{flex:0 0 100%;justify-content:center;width:auto}}