:root{color:#19172a;font-synthesis:none;--purple:#6c4cff;--purple-dark:#4b31d1;--blue:#2979ff;--ink:#19172a;--muted:#747087;--surface:#fff;--line:#e9e5f3;--green:#24b47e;--orange:#f39a35;--red:#e65b67;--shadow:0 12px 35px #3628691a;background:#eeebf8;font-family:ui-rounded,Arial Rounded MT Bold,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}body{background:linear-gradient(#f9f8ff 0%,#f1eef9 100%);min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.04em;margin-bottom:.5rem;font-size:clamp(1.8rem,8vw,2.45rem);line-height:1.05}h2{letter-spacing:-.02em;margin-bottom:.4rem;font-size:1.35rem;line-height:1.15}h3{margin-bottom:.25rem}.app-shell{background:#f9f8ff;width:min(100%,720px);min-height:100vh;margin:0 auto;position:relative;box-shadow:0 0 70px #221a4b1f}.screen{padding:max(1.25rem, env(safe-area-inset-top)) 1.15rem calc(7rem + env(safe-area-inset-bottom));min-height:100vh}.topbar,.page-heading,.section-title,.quiz-header{justify-content:space-between;align-items:center;gap:1rem;display:flex}.topbar{align-items:flex-start;margin-bottom:1.6rem}.page-heading{margin-bottom:1.5rem}.eyebrow{color:var(--purple);letter-spacing:.1em;text-transform:uppercase;margin-bottom:.35rem;font-size:.75rem;font-weight:900}.streak,.xp-badge{box-shadow:var(--shadow);white-space:nowrap;background:#fff;border-radius:999px;padding:.6rem .8rem;font-weight:900}.xp-badge{color:#7b4b00;box-shadow:none;background:#fff4c7;font-size:.83rem}.hero-card{color:#fff;background:linear-gradient(135deg,#6746f5 0%,#9c3ee6 100%);border-radius:1.8rem;margin-bottom:1.8rem;padding:1.35rem;position:relative;overflow:hidden;box-shadow:0 18px 40px #6540e242}.hero-card:after{content:"";background:#ffffff1f;border-radius:50%;width:190px;height:190px;position:absolute;top:-85px;right:-65px}.hero-copy{z-index:1;position:relative}.hero-card h2{margin-top:.8rem;font-size:1.55rem}.hero-card p{color:#ece8ff;margin-bottom:1.2rem}.chip{color:var(--purple-dark);text-transform:uppercase;letter-spacing:.05em;background:#eeebff;border-radius:999px;padding:.35rem .65rem;font-size:.72rem;font-weight:900;display:inline-flex}.chip-light{color:#fff;background:#ffffff2b}.button{border:0;border-radius:1rem;min-height:46px;padding:.75rem 1rem;font-weight:900;transition:transform .15s,filter .15s}.button:active,.session-card:active,.mode-card:active{transform:translateY(2px)scale(.99)}.button-primary{color:#fff;background:linear-gradient(135deg, var(--purple), #8a3eff);box-shadow:0 7px #4b31c6}.button-light{color:var(--purple-dark);z-index:1;background:#fff;position:relative}.button-dark{background:var(--ink);color:#fff}.section-title{margin:1.35rem 0 .85rem}.section-title.compact{margin-top:.5rem}.session-grid{grid-template-columns:1fr 1fr;gap:.85rem;display:grid}.session-card{color:#fff;min-height:145px;box-shadow:var(--shadow);border:0;border-radius:1.45rem;flex-direction:column;align-items:flex-start;padding:1rem;display:flex}.session-card.purple{background:linear-gradient(150deg,#7052ff,#5438cf)}.session-card.blue{background:linear-gradient(150deg,#36a0ff,#226ce2)}.session-card strong{margin-top:auto;font-size:1.1rem}.session-card small{opacity:.8;font-weight:700}.session-icon{background:#ffffff2e;border-radius:16px;place-items:center;width:48px;height:48px;font-size:1.35rem;font-weight:900;display:grid}.recommendation-card,.sync-card{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:1.35rem;grid-template-columns:auto 1fr auto;align-items:center;gap:.8rem;margin:1rem 0;padding:1rem;display:grid}.recommendation-card p,.sync-card p{color:var(--muted);margin:0;font-size:.85rem}.recommendation-icon,.mode-symbol{width:48px;height:48px;color:var(--purple);background:#efebff;border-radius:15px;place-items:center;font-weight:900;display:grid}.round-button,.icon-button{color:#fff;background:var(--ink);border:0;border-radius:50%;width:44px;height:44px;font-size:1.2rem;font-weight:900}.icon-button{background:var(--purple)}.icon-button.subtle{color:var(--ink);background:#ebe8f4}.mini-stats{grid-template-columns:repeat(3,1fr);gap:.65rem;margin-top:1rem;display:grid}.mini-stats div{text-align:center;border:1px solid var(--line);background:#fff;border-radius:1.1rem;padding:.85rem .65rem}.mini-stats strong,.mini-stats span{display:block}.mini-stats strong{font-size:1.3rem}.mini-stats span{color:var(--muted);font-size:.7rem;font-weight:800}.bottom-nav{z-index:20;width:min(100%,720px);padding:.55rem .45rem calc(.5rem + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-top:1px solid var(--line);background:#fffffff0;grid-template-columns:repeat(5,1fr);display:grid;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.nav-item{color:#918ca3;background:0 0;border:0;place-items:center;gap:.15rem;padding:.3rem .1rem;font-size:.62rem;font-weight:900;display:grid}.nav-item.active{color:var(--purple)}.nav-icon{font-size:1.25rem;line-height:1}.form-card,.empty-card{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:1.35rem;margin-bottom:1rem;padding:1rem}.form-card{gap:.85rem;display:grid}.form-card label{color:var(--muted);gap:.3rem;font-size:.8rem;font-weight:900;display:grid}input,select{width:100%;min-height:46px;color:var(--ink);background:#faf9fd;border:2px solid #e7e3f0;border-radius:.85rem;outline:none;padding:.65rem .8rem}input:focus,select:focus{border-color:var(--purple);box-shadow:0 0 0 3px #6c4cff1c}.field-row{grid-template-columns:1fr 1fr;gap:.65rem;display:grid}.tabs-scroll{scrollbar-width:none;gap:.65rem;padding:.15rem 0 1rem;display:flex;overflow-x:auto}.list-tab{border:1px solid var(--line);text-align:left;min-width:145px;color:var(--ink);background:#fff;border-radius:1rem;padding:.75rem;font-weight:900}.list-tab span{color:var(--muted);margin-top:.2rem;font-size:.7rem;display:block}.list-tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}.list-tab.active span{color:#c8c3d8}.word-form{grid-template-columns:1fr 1fr auto;gap:.5rem;margin:.8rem 0;display:grid}.word-list,.test-list{gap:.55rem;display:grid}.word-row,.test-row{border:1px solid var(--line);background:#fff;border-radius:1rem;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:.55rem;padding:.75rem;display:grid}.word-pair,.test-row>div:nth-child(2){min-width:0}.word-pair strong,.word-pair span,.test-row strong,.test-row span{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.word-pair span,.test-row span{color:var(--muted);font-size:.78rem}.row-actions{display:flex}.row-actions button,.test-row>button{width:30px;height:30px;color:var(--muted);background:0 0;border:0;border-radius:8px}.mastery-pill{white-space:nowrap;background:#eee;border-radius:999px;padding:.3rem .45rem;font-size:.63rem;font-weight:900}.mastery-nouveau{color:#706b7c;background:#eeeaf4}.mastery-en-apprentissage{color:#2665be;background:#e6efff}.mastery-fragile{color:#a35b00;background:#fff0d8}.mastery-bien-connu{color:#087650;background:#ddf7ec}.mastery-maitrise{color:#006c45;background:#c9f1df}.danger-link,.text-button{color:var(--red);background:0 0;border:0;font-weight:900}.text-button{color:var(--purple)}.controls-section{margin-top:2rem}fieldset{border:0;gap:.4rem;margin:0;padding:0;display:grid}legend{color:var(--muted);margin-bottom:.4rem;font-size:.8rem;font-weight:900}.check-label{grid-template-columns:auto 1fr;align-items:center;color:var(--ink)!important;display:flex!important}.check-label input{width:20px;min-height:20px}.date-tile{width:50px;height:50px;color:var(--purple);background:#efebff;border-radius:13px;align-content:center;place-items:center;display:grid}.date-tile strong{font-size:1.15rem;line-height:1}.date-tile span{color:var(--purple);text-transform:uppercase;font-size:.62rem;font-weight:900}.mode-list{gap:.75rem;display:grid}.mode-card{border:1px solid var(--line);text-align:left;background:#fff;border-radius:1.25rem;grid-template-columns:auto 1fr auto;align-items:center;gap:.9rem;width:100%;padding:.9rem;display:grid;box-shadow:0 7px 18px #3628690f}.mode-card strong,.mode-card small{display:block}.mode-card small{color:var(--muted);margin-top:.2rem}.quiz-screen{flex-direction:column;display:flex}.quiz-header{margin-bottom:1.8rem}.progress-track{background:#e5e1ef;border-radius:99px;flex:1;height:10px;overflow:hidden}.progress-track span{background:linear-gradient(90deg, var(--purple), #b63cff);border-radius:inherit;height:100%;transition:width .25s;display:block}.question-count{color:var(--muted);font-weight:900}.question-card{text-align:center}.question-card h1{margin:2rem 0;font-size:clamp(2.2rem,11vw,3.7rem)}.choice-list{gap:.7rem;display:grid}.choice{border:2px solid var(--line);min-height:58px;color:var(--ink);background:#fff;border-radius:1rem;font-weight:900;box-shadow:0 5px #ddd7eb}.choice.correct{border-color:var(--green);color:#087650;background:#e4f9f0;box-shadow:0 5px #a7dbc8}.choice.incorrect{border-color:var(--red);color:#a93741;background:#fff0f1;box-shadow:0 5px #e7b6ba}.answer-form{gap:.9rem;display:grid}.answer-form input{text-align:center;min-height:58px;font-size:1.1rem}.feedback-panel{border-radius:1.3rem;justify-content:space-between;align-items:center;gap:1rem;margin-top:auto;padding:1rem;display:flex}.feedback-panel.correct{color:#087650;background:#dff8ed}.feedback-panel.incorrect{color:#a93741;background:#ffeaec}.feedback-panel.almost{color:#5d4600;background:#fff3cf}.feedback-panel strong,.feedback-panel span{display:block}.feedback-panel span{font-size:.8rem}.feedback-panel small{opacity:.72;margin-top:.25rem;display:block}.setting-check{align-items:center;gap:.7rem;display:flex!important}.setting-check input{width:1.2rem!important;min-height:1.2rem!important}.result-screen{text-align:center;flex-direction:column;justify-content:center;align-items:center;display:flex}.result-screen>p:not(.eyebrow){color:var(--muted);max-width:430px}.result-orb{color:#fff;background:linear-gradient(135deg,#ffcf45,#ff8c42);border-radius:50%;place-items:center;width:150px;height:150px;margin-bottom:1.5rem;font-size:2.2rem;font-weight:900;display:grid;box-shadow:0 15px #e47832,0 30px 50px #e2752d40}.progress-hero{color:#fff;box-shadow:var(--shadow);background:linear-gradient(135deg,#6647ef,#8b43e8);border-radius:1.5rem;grid-template-columns:auto 1fr;align-items:center;gap:1rem;padding:1.2rem;display:grid}.progress-hero p{color:#e8e4ff;margin:0;font-size:.82rem}.score-ring{--progress:0deg;background:radial-gradient(circle closest-side, #6f4ce8 76%, transparent 77%), conic-gradient(#ffd444 var(--progress), #fff3 0);border-radius:50%;align-content:center;place-items:center;width:104px;height:104px;display:grid}.score-ring strong,.score-ring span{display:block}.score-ring strong{font-size:1.45rem}.score-ring span{opacity:.8;font-size:.65rem}.mastery-bars{border:1px solid var(--line);background:#fff;border-radius:1.2rem;gap:.65rem;margin:1rem 0 1.7rem;padding:1rem;display:grid}.mastery-bar-row{grid-template-columns:105px 1fr 25px;align-items:center;gap:.5rem;font-size:.72rem;font-weight:800;display:grid}.mastery-bar-row>div{background:#eeeaf4;border-radius:99px;height:8px;overflow:hidden}.mastery-bar-row i{background:linear-gradient(90deg, var(--purple), #46b7ff);border-radius:inherit;height:100%;display:block}.difficulty-score{color:var(--orange)}.profile-card{background:var(--ink);color:#fff;border-radius:1.4rem;grid-template-columns:auto 1fr auto;align-items:center;gap:.8rem;margin-bottom:1rem;padding:1rem;display:grid}.profile-card h2,.profile-card p{margin:0}.profile-card p{color:#bbb6cb;font-size:.78rem}.avatar{background:linear-gradient(135deg,#7a57ff,#c43aff);border:3px solid #ffffff2e;border-radius:19px;place-items:center;width:58px;height:58px;font-size:1.5rem;font-weight:900;display:grid}.status-dot{background:var(--orange);border-radius:50%;width:12px;height:12px;box-shadow:0 0 0 5px #fff2dc}.status-dot.online{background:var(--green);box-shadow:0 0 0 5px #ddf7ec}.privacy-note,.success-note{color:var(--muted);text-align:center;font-size:.78rem}.success-note{color:var(--green);font-weight:900}.error-note{color:var(--red);text-align:center;font-size:.78rem;font-weight:900}.form-help{color:var(--muted);margin:0;font-size:.8rem}.question-instruction{color:var(--muted);font-weight:800}.context-block{text-align:left;background:linear-gradient(145deg,#f1edff,#eef7ff);border:1px solid #dcd5ff;border-radius:1.2rem;margin:1.2rem 0;padding:1rem}.context-block p{margin:.45rem 0;font-weight:800;line-height:1.5}.section-title-row{justify-content:space-between;align-items:center;gap:1rem;display:flex}.section-title-row h2,.section-title-row p{margin:0}.role-chip,.duel-count{color:var(--purple);background:#eee9ff;border-radius:999px;padding:.35rem .6rem;font-size:.7rem;font-weight:900}.private-code{background:var(--ink);color:#fff;text-align:center;letter-spacing:.07em;border-radius:1rem;gap:.2rem;padding:.9rem;display:grid}.private-code small{color:#c8c3d8;letter-spacing:normal}.family-qr{background:#fff;border-radius:.7rem;width:min(260px,100%);margin:0 auto .55rem}.qr-scanner{background:var(--ink);border-radius:1rem;gap:.5rem;padding:.6rem;display:grid}.qr-scanner video{object-fit:cover;border-radius:.7rem;width:100%;max-height:320px}.inline-code-form{gap:.65rem;display:grid}.family-links,.duel-list{gap:.55rem;display:grid}.summary-student{border:1px solid var(--line);border-radius:1rem;margin-top:.8rem;padding:.8rem}.summary-student h3{margin:0 0 .5rem}.summary-student small{color:var(--muted)}.badge-grid{grid-template-columns:repeat(2,1fr);gap:.6rem;display:grid}.badge{color:var(--muted);background:#eeeef3;border-radius:.9rem;align-items:center;gap:.55rem;padding:.75rem;display:flex}.badge.unlocked{color:#6d4d00;background:#fff0bd}.family-link,.duel-row{border:1px solid var(--line);background:#faf9fd;border-radius:1rem;justify-content:space-between;align-items:center;gap:.75rem;padding:.75rem;display:flex}.family-link strong,.family-link small,.duel-row strong,.duel-row small{display:block}.family-link small,.duel-row small{color:var(--muted);font-size:.72rem}.link-actions{flex-wrap:wrap;justify-content:flex-end;gap:.35rem;display:flex}.link-actions button,.duel-row button{color:var(--purple);background:#eee9ff;border:0;border-radius:.65rem;padding:.5rem .65rem;font-size:.72rem;font-weight:900}.duel-panel,.duel-arena{color:#fff;box-shadow:var(--shadow);background:linear-gradient(145deg,#211b38,#392567);border-radius:1.35rem;margin-top:1.2rem;padding:1rem}.duel-panel .form-help{color:#cbc5df;margin-top:.7rem}.duel-launch{grid-template-columns:1fr auto;gap:.55rem;margin-top:.85rem;display:grid}.duel-list{margin-top:.85rem}.duel-row{color:var(--ink);background:#fff;border:0}.duel-arena h2{text-align:center;font-size:clamp(2rem,10vw,3.2rem)}.duel-arena form{gap:.7rem;display:grid}.duel-feedback{border-radius:1rem;gap:.5rem;margin-top:.8rem;padding:.8rem;display:grid}.duel-feedback.correct{color:#087650;background:#dff8ed}.duel-feedback.incorrect{color:#a93741;background:#ffeaec}.battle-panel,.battle-arena{color:#fff;box-shadow:var(--shadow);background:linear-gradient(145deg,#053f4b,#0c7180);border-radius:1.35rem;margin-top:1.2rem;padding:1rem}.battle-panel .form-help{color:#d5f1f4}.battle-players{gap:.5rem;margin:.8rem 0;display:grid}.battle-player{color:var(--ink);background:#fff;border-radius:.8rem;justify-content:space-between;margin-top:.45rem;padding:.7rem;display:flex}.battle-player.empty{opacity:.65;color:#fff;background:0 0;border:1px dashed #fff}.battle-room-row{color:#075866;background:#fff;border:0;border-radius:.8rem;width:100%;margin-top:.5rem;padding:.75rem;font-weight:800}.battle-arena h2{text-align:center;font-size:clamp(2rem,10vw,3.2rem)}.battle-arena form{gap:.6rem;display:grid}.save-indicator{z-index:30;top:max(.5rem, env(safe-area-inset-top));color:var(--muted);pointer-events:none;font-size:.68rem;position:fixed;left:50%;transform:translate(-50%)}.app-loading{min-height:100vh;color:var(--purple);align-content:center;place-items:center;gap:1rem;display:grid}.loader{border:5px solid #ded8fa;border-top-color:var(--purple);border-radius:50%;width:44px;height:44px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=500px){.field-row,.word-form{grid-template-columns:1fr}.word-form .button{width:100%}.mastery-pill{display:none}.progress-hero{text-align:center;grid-template-columns:1fr;justify-items:center}.profile-card{grid-template-columns:auto 1fr}.profile-card .xp-badge{text-align:center;grid-column:1/-1;justify-self:stretch}.duel-launch{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}