:root{color-scheme:light;--color-bg: #f6efe2;--color-bg-start: #fbf6ec;--color-bg-accent: rgba(232, 93, 49, .1);--color-surface: #ffffff;--color-surface-strong: #fffaf3;--color-surface-hover: rgba(255, 249, 241, .94);--color-text: #1b1714;--color-text-soft: #625247;--color-line: rgba(27, 23, 20, .12);--color-accent: #dd6237;--color-accent-strong: #b64f2c;--color-accent-soft: rgba(221, 98, 55, .12);--color-success: #22704f;--color-warning: #ac6530;--focus-background: radial-gradient(circle at 18% 12%, rgba(247, 210, 255, .52), transparent 26rem), radial-gradient(circle at 78% 22%, rgba(255, 232, 178, .42), transparent 28rem), linear-gradient(145deg, #fffaf7 0%, #f8f1ff 50%, #fffdf8 100%);--font-body: system-ui, -apple-system, sans-serif;--font-display: system-ui, -apple-system, sans-serif;--font-size-body: 1rem;--font-size-title: clamp(1.5rem, 4vw, 2.5rem);--line-height-body: 1.6;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--radius-sm: .375rem;--radius-card: 1rem;--radius-pill: 9999px;--motion-base: .2s ease;--shadow-soft: 0 4px 12px rgba(0, 0, 0, .05);--content-width: min(100%, 64rem)}*{box-sizing:border-box}html,body,#app{min-height:100vh}body{margin:0;font-family:var(--font-body);background:var(--color-bg);background:var(--focus-background);color:var(--color-text);line-height:var(--line-height-body)}button,input,a{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}a{text-decoration:none}.shell{width:var(--content-width);margin:0 auto;padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-6)}.shell[data-shell=focus]{width:100%;min-height:100vh;min-height:100svh;padding:0;gap:0;background:var(--focus-background)}.shell__main{width:100%}.shell__main[data-shell=focus]{min-height:100vh;min-height:100svh}.shell__header{display:flex;align-items:center;justify-content:space-between;padding-bottom:var(--space-4);border-bottom:1px solid 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1rem;border-radius:var(--radius-pill);font-size:.85rem}.panel{background:var(--color-surface);padding:var(--space-5);border-radius:var(--radius-card);border:1px solid var(--color-line);box-shadow:var(--shadow-soft);animation:fade-in .3s ease}.panel__title{margin:0 0 var(--space-4) 0;font-family:var(--font-display);font-size:var(--font-size-title)}.panel__subtitle{margin:calc(-1 * var(--space-2)) 0 var(--space-5);color:var(--color-text-soft)}.form{display:grid;gap:var(--space-4)}.field{display:grid;gap:var(--space-2)}.field__label{font-weight:700;font-size:.9rem}.field__input{width:100%;padding:.75rem 1rem;border:1px solid var(--color-line);border-radius:var(--radius-sm);background:var(--color-surface-strong)}.field__input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-soft)}.field__error{color:var(--color-warning);font-size:.85rem}.welcome-page{min-height:100vh;min-height:100svh;padding:clamp(1.5rem,4vw,3.5rem);background:transparent}.welcome-panel{width:min(100%,820px);min-height:calc(100vh - clamp(3rem,8vw,7rem));min-height:calc(100svh - clamp(3rem,8vw,7rem));margin:0 auto;display:grid;grid-template-rows:auto 1fr;gap:clamp(1.25rem,3vw,2rem)}.welcome-panel--form{width:min(100%,620px)}.welcome-panel--centered-form{grid-template-rows:auto minmax(0,1fr)}.welcome-topbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);min-width:0}.welcome-identity{display:flex;align-items:center;gap:clamp(.85rem,2vw,1.15rem);min-width:0}.welcome-identity__avatar{display:grid;place-items:center;width:clamp(4rem,8vw,5.5rem);height:clamp(4rem,8vw,5.5rem);flex:0 0 auto;border-radius:999px;background:linear-gradient(145deg,#eee4ff,#fff);box-shadow:inset 0 0 0 1px #7d58da1a,0 12px 28px #7052c21f;font-size:clamp(2rem,4vw,2.8rem);line-height:1}.welcome-identity__copy{min-width:0}.welcome-identity__title{margin:0;color:#111735;font-size:clamp(1.9rem,4vw,2.6rem);font-weight:850;line-height:1}.welcome-identity__subtitle{margin:.35rem 0 0;color:#73798d;font-size:clamp(1rem,2vw,1.25rem);font-weight:650}.welcome-card{align-self:center;display:grid;gap:clamp(1rem,2.6vw,1.55rem);padding:clamp(1.4rem,3vw,2.25rem);border:1px solid rgba(121,91,210,.1);border-radius:clamp(1.75rem,4vw,2.75rem);background:#ffffffb8;box-shadow:0 28px 70px #4c32961f;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);animation:fade-in .3s ease}.welcome-card--form{align-self:center}.welcome-card__eyebrow{margin:0;color:#7b5dde;font-size:clamp(1.2rem,2.8vw,1.55rem);font-weight:900;line-height:1.1}.welcome-card__title{max-width:12ch;margin:0;color:#0c1230;font-size:clamp(2.05rem,5.8vw,4.4rem);line-height:1.02}.welcome-card--form .welcome-card__title{font-size:clamp(2rem,4.8vw,3rem)}.welcome-card__body{max-width:36rem;margin:0;color:#626a82;font-size:clamp(1rem,2vw,1.25rem);font-weight:650}.welcome-card__actions{display:flex;flex-wrap:wrap;gap:var(--space-3)}.welcome-action{display:inline-flex;align-items:center;justify-content:center;min-height:3.15rem;min-width:9rem;padding:.8rem 1.35rem;box-shadow:0 14px 28px #dd623733}.welcome-action:disabled{cursor:wait;opacity:.7;transform:none}.auth-form{gap:var(--space-5);margin-top:var(--space-2)}.auth-form .field__label{color:#303852}.auth-form .field__input{min-height:3rem;border-color:#795bd229;background:#ffffffc2;box-shadow:0 8px 18px #432e840a}@keyframes fade-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%{transform:scale(.95);opacity:.5}50%{transform:scale(1.05);opacity:1}to{transform:scale(.95);opacity:.5}}.auth-shell__header{text-align:center;padding:var(--space-6) 0}.auth-brand__title{font-size:2.5rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.today-page{--today-type-display: clamp(2.6rem, 5.5vw, 3rem);--today-type-reading: clamp(1.12rem, 2.1vw, 1.3rem);--today-type-question: clamp(1.18rem, 2.2vw, 1.42rem);--today-type-option: clamp(1rem, 1.9vw, 1.16rem);--today-type-helper: clamp(.98rem, 1.6vw, 1.1rem);--today-type-feedback: clamp(.95rem, 1.5vw, 1.05rem);min-height:100vh;min-height:100svh;padding:clamp(1.5rem,4vw,3.5rem);background:radial-gradient(circle at 18% 12%,rgba(247,210,255,.52),transparent 26rem),radial-gradient(circle at 78% 22%,rgba(255,232,178,.42),transparent 28rem),linear-gradient(145deg,#fffaf7,#f8f1ff,#fffdf8)}.today-panel{width:min(100%,820px);min-height:calc(100vh - clamp(3rem,8vw,7rem));min-height:calc(100svh - clamp(3rem,8vw,7rem));margin:0 auto;display:flex;flex-direction:column;gap:clamp(1.25rem,3vw,2rem)}.kibo-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.kibo-header__identity{display:flex;align-items:center;gap:clamp(.85rem,2vw,1.15rem);min-width:0}.kibo-header__copy{min-width:0}.kibo-header__avatar,.focus-card__avatar{display:grid;place-items:center;flex:0 0 auto;border-radius:999px;background:linear-gradient(145deg,#eee4ff,#fff);box-shadow:inset 0 0 0 1px #7d58da1a,0 12px 28px #7052c21f}.kibo-header__avatar{width:clamp(4rem,8vw,5.5rem);height:clamp(4rem,8vw,5.5rem);font-size:clamp(2rem,4vw,2.8rem)}.kibo-header__title{margin:0;font-size:clamp(1.9rem,4vw,2.6rem);font-weight:850;line-height:1;color:#111735}.kibo-header__subtitle{margin:.35rem 0 0;color:#73798d;font-size:clamp(1rem,2vw,1.25rem);font-weight:650}.kibo-header__actions{display:flex;align-items:center;justify-content:flex-end;gap:.6rem;flex:0 0 auto}.kibo-header__progress{display:inline-flex;align-items:center;gap:.6rem;padding:.7rem 1.15rem;border:1px solid rgba(121,91,210,.16);border-radius:999px;background:#ffffffbd;box-shadow:0 10px 26px #432e8414;color:#7359cf;font-size:clamp(1rem,2vw,1.25rem);font-weight:800}.kibo-header__sign-out{display:inline-grid;place-items:center;width:3.05rem;height:3.05rem;border:1px solid rgba(121,91,210,.16);border-radius:999px;background:#ffffff7a;box-shadow:0 8px 20px #432e840a;color:#7a718d;transition:background-color var(--motion-base),color var(--motion-base),transform var(--motion-base)}.kibo-header__sign-out:hover{background:#ffffffe0;color:#7359cf;transform:translateY(-1px)}.focus-card{align-self:center;display:grid;gap:clamp(1rem,2.6vw,1.55rem);padding:clamp(1.4rem,3vw,2.25rem);border:1px solid rgba(121,91,210,.1);border-radius:clamp(1.75rem,4vw,2.75rem);background:#ffffffb8;box-shadow:0 28px 70px #4c32961f;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.focus-card__heading{text-align:center}.focus-card__eyebrow{margin:0;color:#7b5dde;font-size:clamp(1.65rem,4vw,2.45rem);font-weight:900;line-height:1.1}.focus-card__eyebrow:before,.focus-card__eyebrow:after{content:"✦";margin:0 .75rem;color:#ffd866;font-size:.58em;vertical-align:.12em}.focus-card__title{margin:.5rem 0 0;color:#0c1230;font-size:clamp(1.85rem,4.6vw,3.1rem);line-height:1.08}.focus-card__image{display:grid;place-items:center;min-height:clamp(15rem,36vw,22rem);position:relative;overflow:hidden;border:.55rem solid rgba(255,255,255,.9);border-radius:clamp(1.4rem,3vw,2.25rem);box-shadow:0 18px 42px #233f2829}.focus-card__intro-visual{isolation:isolate;background:radial-gradient(circle at 20% 22%,rgba(255,218,111,.78) 0 .9rem,transparent 1rem),radial-gradient(circle at 80% 28%,rgba(112,185,153,.42) 0 4.4rem,transparent 4.65rem),radial-gradient(circle at 16% 82%,rgba(246,161,91,.28) 0 5rem,transparent 5.2rem),linear-gradient(135deg,#f9f4e7,#dfeee4 48%,#dce9f5)}.focus-card__intro-visual:before,.focus-card__intro-visual:after{content:"";position:absolute;z-index:-1;border-radius:999px}.focus-card__intro-visual:before{width:min(72%,28rem);height:min(36%,9.5rem);right:-8%;bottom:8%;background:#5e805f33;transform:rotate(-8deg)}.focus-card__intro-visual:after{width:min(58%,22rem);height:min(28%,7rem);left:-10%;bottom:18%;background:#ffffff94;transform:rotate(10deg)}.focus-card__intro-orbit{position:absolute;inset:clamp(1rem,3vw,2rem);border:1px solid rgba(95,117,106,.22);border-radius:clamp(1rem,2.5vw,1.8rem)}.focus-card__intro-node{position:absolute;border-radius:999px;box-shadow:0 16px 28px #394c3f24}.focus-card__intro-node--primary{width:clamp(4rem,12vw,7.25rem);height:clamp(4rem,12vw,7.25rem);left:clamp(1rem,5vw,3.5rem);top:clamp(1.25rem,5vw,3.25rem);background:linear-gradient(145deg,#6fa882,#a7d49e)}.focus-card__intro-node--secondary{width:clamp(2.7rem,8vw,4.5rem);height:clamp(2.7rem,8vw,4.5rem);right:clamp(1.1rem,5vw,4rem);top:clamp(1.2rem,4vw,2.5rem);background:linear-gradient(145deg,#f4b766,#ffe1a0)}.focus-card__intro-node--accent{width:clamp(3.2rem,9vw,5.75rem);height:clamp(1.2rem,4vw,2rem);right:clamp(2rem,8vw,6rem);bottom:clamp(2rem,6vw,4.75rem);background:#fff}.focus-card__intro-panel{display:grid;gap:.35rem;max-width:min(78%,26rem);padding:clamp(.85rem,2.4vw,1.25rem) clamp(1rem,3vw,1.55rem);border:1px solid rgba(255,255,255,.72);border-radius:clamp(1rem,2.5vw,1.7rem);background:#ffffffb3;color:#1d2d28;text-align:center;box-shadow:0 22px 46px #394c3f24;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.focus-card__intro-panel strong{color:#17231f;font-size:clamp(1.25rem,3.4vw,2rem);line-height:1.08}.focus-card__intro-kibo{color:#5f756a;font-size:clamp(.72rem,1.7vw,.85rem);font-weight:900;letter-spacing:0;text-transform:uppercase}.focus-card__prompt-row{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:clamp(.75rem,2vw,1.25rem)}.focus-card__avatar{width:clamp(4rem,9vw,5.5rem);height:clamp(4rem,9vw,5.5rem);font-size:clamp(2rem,4vw,2.75rem)}.focus-card__prompt{margin:0;padding:clamp(1rem,2.4vw,1.35rem) clamp(1.1rem,3vw,1.7rem);border:1px solid rgba(121,91,210,.1);border-radius:1.5rem;background:#ffffffd1;color:#161a35;font-size:clamp(1.1rem,2.5vw,1.45rem);line-height:1.55;box-shadow:0 16px 34px #4a358414}.focus-card__prompt strong{color:#7658da}.focus-card__status{margin:0;text-align:center;color:#6d51cf;font-weight:800}.today-focus-stack{flex:1 1 auto;display:grid;align-self:stretch;align-content:center;gap:.85rem;padding-bottom:.35rem}.interaction-card{align-self:stretch}.interaction-card__label{text-align:center;color:#7b5dde;font-size:clamp(1.2rem,3vw,1.75rem);font-weight:900}.word-card{display:grid;justify-items:center;gap:.25rem;padding:clamp(1.1rem,3vw,1.8rem);border:1px solid rgba(121,91,210,.1);border-radius:2rem;background:#ffffffb8}.word-card__word{margin:0;color:#0c1230;font-size:var(--today-type-display);font-weight:950;line-height:1}.word-card__phonetic,.word-card__meaning{margin:0;color:#73798d;font-size:var(--today-type-helper);font-weight:750}.word-card__meaning{color:#7b5dde}.icon-orb,.inline-audio-button,.audio-strip__play{display:inline-grid;place-items:center;border-radius:999px;color:#7658da;background:#7b5dde1a}.icon-orb{width:4.7rem;height:4.7rem;border:2px solid rgba(123,93,222,.16)}.icon-orb--small{width:3.2rem;height:3.2rem}.practice-actions,.sentence-practice-row{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:.85rem}.sentence-practice-row .read-panel__sentence{flex:1 1 100%;text-align:center}.icon-orb:disabled,.focus-card__button:disabled{cursor:not-allowed;opacity:.48;transform:none}.focus-card__image--short{min-height:clamp(9rem,24vw,14rem)}.focus-card__image--question{min-height:clamp(11rem,26vw,16rem)}.word-warmup-image-frame{width:min(100%,26rem);justify-self:center;aspect-ratio:16 / 10;overflow:hidden;border:.4rem solid rgba(255,255,255,.9);border-radius:1.35rem;background:#ffffff8c;box-shadow:0 16px 34px #4a35841a}.word-warmup-image{display:block;width:100%;height:100%;object-fit:cover}.listen-read-image{width:min(100%,30rem);justify-self:center;aspect-ratio:16 / 9;border-radius:1rem;object-fit:cover;box-shadow:0 16px 34px #4a35841a}.voice-practice-card,.audio-strip,.question-card,.feedback-strip,.example-strip,.voice-answer-panel{border:1px solid rgba(121,91,210,.13);border-radius:1.45rem;background:#ffffffb8;box-shadow:0 14px 32px #4a358412}.voice-practice-card{display:flex;align-items:center;gap:1.1rem;padding:1rem 1.25rem;color:#7658da}.voice-practice-card--center{display:grid;justify-items:center;text-align:center;padding:1.4rem}.voice-practice-card__title{margin:0;color:#7658da;font-size:clamp(1.25rem,3vw,1.7rem);font-weight:900}.voice-practice-card__helper{margin:.2rem 0 0;color:#73798d;font-weight:700}.voice-practice-card__wave,.audio-strip__wave{width:min(100%,22rem);height:2.5rem;border-radius:999px;background:repeating-linear-gradient(90deg,rgba(123,93,222,.18) 0 .25rem,transparent .25rem .7rem)}.example-strip,.feedback-strip{display:flex;align-items:center;justify-content:center;gap:.6rem;margin:0;padding:.9rem 1rem;color:#101632;font-size:var(--today-type-feedback);font-weight:750}.example-strip{background:#fff7d6d6}.feedback-strip{background:#ecffe0cc}.feedback-detail-list{display:grid;gap:.25rem;margin:.4rem 0 0;padding-left:1.2rem;text-align:left;font-size:.95rem;font-weight:650}.feedback-detail{display:flex;flex-wrap:wrap;gap:.4rem .65rem;margin:.35rem 0 0;font-size:.95rem;font-weight:650}.feedback-strip--incorrect{background:#ffeee2e0;color:#8a2f1c}.feedback-strip--correct{background:#ecffe0db;color:#265f28}.read-panel{display:grid;gap:.6rem;padding:clamp(1rem,2.6vw,1.6rem);border-radius:1.6rem;background:#ffffffd1}.read-panel--practice{position:relative;gap:1rem}.read-paragraph{margin:0;color:#101632;font-size:var(--today-type-reading);line-height:1.65}.listen-sentence{border-radius:.35rem;cursor:pointer;transition:background .16s ease}.listen-sentence:hover{background:#7b5dde14}.listen-sentence--active{background:#7b5dde24}.read-panel__sentence{margin:0;color:#101632;font-size:var(--today-type-reading);line-height:1.55}.read-word{display:inline;padding:0;border:0;border-radius:.28rem;color:inherit;font:inherit;background:transparent;cursor:pointer}.read-word--active{background:#7b5dde29}.read-word--correct{color:#5ca83e}.read-word--incorrect{color:#f01818}.keyword-chip,.sentence-keyword{color:#7658da;font-weight:900}.keyword-chip{display:inline-block;padding:0 .35rem;border-radius:.6rem;background:#7b5dde1a}.inline-audio-button{width:2rem;height:2rem;margin-left:.4rem;vertical-align:middle}.audio-strip{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:1rem;padding:.85rem 1rem;color:#626984;font-weight:750}.audio-strip__play{width:3.8rem;height:3.8rem;color:#fff;background:linear-gradient(145deg,#a56cf3,#7654d9)}.sentence-action-bubble{position:absolute;z-index:30;left:50%;top:50%;transform:var(--bubble-transform, translate(-50%, calc(-100% - 30px) ));display:flex;align-items:center;gap:.55rem;width:max-content;padding:.45rem;border:1px solid rgba(121,91,210,.16);border-radius:1rem;background:#fffffff0;box-shadow:0 14px 32px #4a358424}.word-lookup-panel{position:absolute;z-index:30;left:50%;top:50%;transform:var(--bubble-transform, translate(-50%, calc(-100% - 30px) ));display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:.75rem;width:max-content;max-width:min(24rem,calc(100vw - 2rem));padding:.85rem 1rem;border:1px solid rgba(121,91,210,.13);border-radius:1rem;color:#101632;background:#ffffffdb;box-shadow:0 12px 28px 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