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0;outline:none;font-size:.85rem}.vocab-flash-area{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:1.5rem;margin-top:1.5rem;display:flex}.vocab-flashcard{cursor:pointer;user-select:none;perspective:1000px;width:100%;max-width:36rem;min-height:400px;position:relative}.vocab-flashcard-inner{width:100%;min-height:400px;transform-style:preserve-3d;transition:transform .5s;position:relative}.vocab-flashcard-inner.is-flipped{transform:rotateY(180deg)}@media (prefers-reduced-motion:reduce){.vocab-flashcard-inner{transition:none}}.vocab-card-face{border:2px solid 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.7rem;font-size:.72rem;font-weight:800;display:inline-block}.vocab-badge-sm{flex-shrink:0;padding:.1rem .55rem}.vocab-badge-soft{color:var(--v-muted);background:var(--v-chip-bg)!important}.vocab-section{flex-direction:column;gap:.3rem;display:flex}.vocab-section-title{letter-spacing:.06em;text-transform:uppercase;color:var(--v-muted);font-size:.72rem;font-weight:700}.vocab-section p{color:var(--v-fg);line-height:1.5}.vocab-muted{line-height:1.55;color:var(--v-muted)!important}.vocab-muted-italic{color:var(--v-muted);font-size:.9rem;font-style:italic}.vocab-link{font:inherit;color:var(--primary-light);cursor:pointer;background:0 0;border:none;align-items:center;padding:0;font-size:.78rem;font-weight:600;display:inline-flex}.vocab-link:hover{text-decoration:underline}.vocab-chip-row{flex-wrap:wrap;gap:.4rem;display:flex}.vocab-chip{background:var(--v-chip-bg);color:var(--v-fg);font:inherit;cursor:pointer;border:none;border-radius:999px;transition:background .15s,color 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0}.vocab-moon{aspect-ratio:1;width:clamp(58px,6vw,92px);position:absolute;top:clamp(92px,13vh,150px);right:clamp(36px,8vw,130px)}.vocab-bg-cloud,.vocab-bg-cloud:before,.vocab-bg-cloud:after{content:"";background:#fffffcb8;display:block;position:absolute}.vocab-bg-cloud{border-radius:999px;width:140px;height:64px}.vocab-bg-cloud:before{border-radius:50%;width:76px;height:76px;top:-38px;left:42px}.vocab-bg-cloud:after{opacity:.56;border-radius:50%;width:88px;height:88px;top:-18px;left:76px}.vocab-bg-cloud-1{top:clamp(126px,17vh,180px);left:clamp(36px,8vw,140px)}.vocab-bg-cloud-2{opacity:.36;top:clamp(160px,22vh,230px);left:clamp(98px,15vw,230px);transform:scale(.68)}.vocab-bg-cloud-3{opacity:.48;top:clamp(104px,15vh,164px);left:76vw;transform:scale(.84)}.vocab-bg-cloud-4{opacity:.58;top:clamp(188px,26vh,278px);left:129vw;transform:scale(.74)}.vocab-bg-cloud-5{opacity:.52;top:clamp(128px,18vh,192px);left:184vw;transform:scale(.92)}.vocab-bg-cloud-6{opacity:.4;top:clamp(214px,30vh,310px);left:238vw;transform:scale(.66)}.vocab-ocean{height:clamp(68px,9vh,108px);position:absolute;bottom:-2px;left:0;right:0;overflow:hidden}.vocab-wave{will-change:transform;border-radius:50% 50% 0 0/42% 42% 0 0;height:58%;position:absolute;left:-8%;right:-8%}.vocab-wave-back{background:#2f9ae6;animation:8.8s ease-in-out infinite alternate vocab-wave-back-drift;bottom:34%;transform:translate(-1.4%,2px)rotate(-1deg)}.vocab-wave-mid{background:#5fc6f7;animation:7.4s ease-in-out infinite alternate-reverse vocab-wave-mid-drift;bottom:17%;transform:translate(1.2%,-1px)rotate(1.2deg)}.vocab-wave-front{background:#9edfff;animation:6.2s ease-in-out infinite alternate vocab-wave-front-drift;bottom:-2%;transform:translate(-1%)rotate(0)}@keyframes vocab-wave-back-drift{0%{transform:translate(-1.8%,2px)rotate(-1.15deg)}to{transform:translate(1.8%,-2px)rotate(-.45deg)}}@keyframes vocab-wave-mid-drift{0%{transform:translate(1.5%,-1px)rotate(1.25deg)}to{transform:translate(-1.5%,2px)rotate(.65deg)}}@keyframes vocab-wave-front-drift{0%{transform:translate(-1.3%)rotate(-.22deg)}to{transform:translate(1.3%,-1px)rotate(.18deg)}}@media 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1.05rem;font-size:clamp(1.02rem,2vw,1.55rem);font-weight:900;line-height:1;display:inline-flex}.vocab-feed-hud-streak{gap:.45rem}.vocab-feed-hud-flame{font-size:1.2em;line-height:1}.vocab-feed-hud-count{justify-self:end;gap:.36rem}.vocab-feed-hud-count-num{font-size:1.38em}.vocab-feed-hud-tabs{color:#1e6fbec2;justify-content:center;align-items:flex-end;gap:clamp(1.2rem,4vw,2.35rem);min-width:220px;font-size:clamp(1.15rem,2.2vw,1.55rem);font-weight:900;line-height:1.1;display:inline-flex}.vocab-feed-hud-tabs span{padding-bottom:.55rem;position:relative}.vocab-feed-hud-tabs .is-active{color:var(--vocab-wave)}.vocab-feed-hud-tabs .is-active:after{content:"";background:#2f7ee6;border-radius:999px;width:100%;height:5px;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.vocab-feed-progress-sr{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.vocab-feed-card-area{--balloon-height:clamp(395px, 54dvh, 590px);--balloon-width:calc(var(--balloon-height) * .724);z-index:2;min-height:var(--vocab-route-min-height);grid-template-rows:minmax(0,1fr) auto;padding:clamp(0px,.5vh,10px) clamp(16px,3vw,36px) clamp(28px,4vh,54px);display:grid;position:relative}.vocab-balloon-save{z-index:6;position:absolute;top:12px;right:12px}.vocab-bookmark-btn{border:4px solid var(--vocab-shadow-feed-control);background:var(--vocab-foam);width:54px;height:54px;box-shadow:0 4px 0 var(--vocab-shadow-feed-control);color:var(--vocab-ink);cursor:pointer;border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;transition:transform .12s,color .15s,border-color .15s,background .15s;display:inline-flex}.vocab-bookmark-btn:hover{color:var(--vocab-wave);transform:translateY(-1px)}.vocab-bookmark-btn.is-saved{color:var(--vocab-wave);border-color:var(--vocab-shadow-active);box-shadow:0 4px 0 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small{font-size:.52em;font-weight:300}.vocab-balloon-definition-body{flex-direction:column;flex:1;justify-content:center;gap:clamp(.8rem,1.8dvh,1.1rem);min-height:0;display:flex}.vocab-balloon-definition-text,.vocab-balloon-example{margin:0;font-size:clamp(1rem,2dvh,1.32rem);line-height:1.35}.vocab-balloon-definition-text{font-weight:400}.vocab-balloon-example{color:var(--vocab-wave);font-family:var(--vocab-font-light);font-weight:300}.vocab-balloon-example-word{text-underline-offset:3px;text-decoration:underline 2px}.vocab-attached-bags{z-index:8;pointer-events:none;width:1px;height:1px;transition:opacity 90ms;position:absolute;top:89.25%;left:calc(50% - 5px)}.vocab-current-balloon.is-balloon-opened .vocab-attached-bags{opacity:0}.vocab-attached-bag{--bag-x:0px;object-fit:contain;width:clamp(18px,2.7dvh,26px);max-width:none;height:clamp(20px,3dvh,29px);animation:3s ease-in-out infinite 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.vocab-hint-cloud{opacity:0;pointer-events:none;transform:translate(-50%)translateY(12px)}.vocab-hint-bubble,.vocab-hint-lobe{background:var(--vocab-foam);display:block;position:absolute;left:50%;transform:translate(-50%)}.vocab-hint-bubble{border-radius:999px;width:100%;height:76px;bottom:18px}.vocab-hint-lobe{border-radius:50%;width:96px;height:96px;top:5px}.vocab-hint-text{z-index:3;width:100%;color:var(--vocab-wave);text-align:center;white-space:nowrap;font-size:clamp(1.65rem,3.6vw,2.45rem);font-weight:400;line-height:1;position:absolute;top:calc(50% + clamp(5px,.9vh,9px));bottom:auto;left:50%;transform:translate(-50%,-50%)}.vocab-feed-rating{grid-template-columns:repeat(4,minmax(82px,128px));justify-content:center;gap:clamp(.5rem,2vw,1rem);width:min(100%,620px);display:grid;position:absolute;bottom:clamp(142px,16.5dvh,198px);left:50%;transform:translate(-50%)}.vocab-rating-btn{color:#1b1410e0;height:clamp(98px,14dvh,132px);font:inherit;cursor:pointer;opacity:0;transform:translate3d(var(--bag-start-x,0px), -172px, 0) scale(.62);transform-origin:50% 82%;backface-visibility:hidden;will-change:transform, opacity;background:0 0;border:none;place-items:center;transition:opacity .18s,filter .18s;animation:.38s cubic-bezier(.2,.86,.22,1.08) forwards 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vocab-balloon-exit{0%{opacity:1;transform:translateY(30px)scale(1)}to{opacity:0;transform:translateY(294px)scale(2.18)}}@keyframes vocab-balloon-enter{0%{opacity:0;transform:translateY(30px)scale(.56)}to{opacity:1;transform:translateY(30px)scale(1)}}@keyframes vocab-bag-idle{0%,to{transform:translate(var(--bag-x), -50%) scale(1)}50%{transform:translate(var(--bag-x), -50%) scale(1.03)}}@keyframes vocab-bag-drop{0%{opacity:0;transform:translate3d(var(--bag-start-x,0px), -172px, 0) scale(.62)}68%{opacity:1;transform:translateY(9px)scale(1.015)}to{opacity:1;transform:translate(0,0)scale(1)}}@keyframes vocab-bag-selected{0%{opacity:1;transform:translate(0,0)scale(1)}42%{opacity:.94;transform:translateY(112px)scale(1.04)}to{opacity:0;transform:translateY(320px)scale(.98)}}@keyframes vocab-bag-dismiss{0%{opacity:1;transform:translate(0,0)scale(1)}46%{opacity:.52;transform:translateY(64px)scale(.98)}to{opacity:0;transform:translateY(236px)scale(.9)}}@keyframes vocab-help-in{0%{opacity:0;transform:translate(-50%)translateY(6px)}to{opacity:1;transform:translate(-50%)translateY(0)}}@keyframes vocab-help-out{0%{opacity:1;transform:translate(-50%)translateY(0)}to{opacity:0;transform:translate(-50%)translateY(10px)}}.vocab-help-popup-overlay{--vocab-font:"VAGRundDolphin", Manrope, system-ui, sans-serif;--vocab-font-light:"VAGRundDolphin", Manrope, system-ui, sans-serif;z-index:200;padding:max(.75rem, env(safe-area-inset-top)) 1rem max(.75rem, env(safe-area-inset-bottom));font-family:var(--vocab-font);font-synthesis-weight:none;background:#0a234fc7;justify-content:center;align-items:center;animation:.16s forwards vocab-popup-fade-in;display:flex;position:fixed;inset:0;overflow:auto}.vocab-help-popup-card{transform-origin:50% 62%;background:#103b84;border-radius:30px;width:100%;max-width:500px;max-height:calc(100dvh - 1.5rem);padding:clamp(16px,2.2dvh,22px) clamp(22px,4vw,28px);animation:.22s cubic-bezier(.22,1,.36,1) forwards 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p{color:#d9e4f2;font-size:clamp(16px,2dvh,18px);line-height:1.34;font-family:var(--vocab-font-light);margin:0;font-weight:300}.vocab-help-popup-content{flex-direction:column;gap:clamp(10px,1.6dvh,14px);margin-top:clamp(12px,1.8dvh,16px);display:flex}.vocab-help-popup-scroll{flex-direction:column;gap:clamp(8px,1.4dvh,12px);max-height:none;padding-right:0;display:flex;overflow:visible}.vocab-help-popup-section-title{color:#fffffc;margin:0;font-size:clamp(21px,2.6dvh,24px);font-weight:400;line-height:1.12}.vocab-help-popup-ratings-card{background:#fffffcf5;border-radius:24px;padding:clamp(6px,.9dvh,8px) 14px}.vocab-help-popup-rating-item{align-items:center;gap:14px;padding:clamp(7px,1.05dvh,9px) 10px;display:flex}.vocab-help-popup-rating-badge{color:#0a234f;text-align:center;background:#9edfff;border-radius:16px;min-width:92px;padding:clamp(7px,1dvh,9px) 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