:root{--bg:#f7f8fe;--ink:#26314e;--muted:#78849d;--line:#e5eaf4;--violet:#6759db;--violet-deep:#5542c8;--lav:#efecff;--mint:#e4f9ef;--mint-ink:#20805a;--bad:#aa4553;--pink:#fff0f0;--white:#fff;--shadow:0 16px 45px rgba(38,49,91,.055)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b1a8ff;outline-offset:2px}a{color:var(--violet)}h1,h2,h3,p{margin:0}h1{font-size:clamp(26px,3.5vw,40px);line-height:1.3;letter-spacing:-1.3px}h2{font-size:23px;letter-spacing:-.5px}h3{font-size:17px}p{line-height:1.75}.small{font-size:13px}.tiny{font-size:12px}.muted{color:var(--muted)}.eyebrow{color:var(--violet);font-size:11px;letter-spacing:2.1px;font-weight:800}.pill{display:inline-flex;align-items:center;justify-content:center;background:#f0edff;color:#5a51b6;border-radius:999px;padding:6px 12px;font-size:12px;font-weight:750}.brand{display:flex;align-items:center;gap:12px;font-size:23px;font-weight:850;letter-spacing:-.7px;line-height:1.2}.brand small{display:block;font-size:9px;font-weight:750;letter-spacing:2px;color:var(--muted);margin-top:4px}.logo{display:grid;place-items:center;background:#e5e2ff;border-radius:15px;width:46px;height:46px;font-size:25px}.brand.big{font-size:26px}.panel{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:23px;box-shadow:var(--shadow)}.btn{border:1px solid var(--line);border-radius:12px;padding:10px 15px;background:white;color:#44516c;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn.primary{background:var(--violet);border-color:var(--violet);color:#fff}.btn.primary:hover{background:var(--violet-deep)}.btn.soft{background:var(--lav);border-color:transparent;color:var(--violet)}.btn.good{background:var(--mint);border-color:transparent;color:var(--mint-ink)}.btn.subtle{border-color:transparent;background:#f2f3fc}.btn.small{padding:7px 10px;font-size:12px}.btn.full{width:100%}.btn:active{transform:translateY(1px)}label{font-size:13px;font-weight:750;color:#596784;display:flex;flex-direction:column;gap:7px}input,select,textarea{padding:11px 13px;border:1px solid #dce2ef;border-radius:11px;background:#fff;min-width:0;color:var(--ink);width:100%;outline-offset:1px}textarea{resize:vertical;min-height:70px}.field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.form-stack{display:grid;gap:13px}.form-actions{display:flex;gap:10px;flex-wrap:wrap}.auth-screen{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,440px);align-items:center;gap:clamp(24px,6vw,90px);max-width:1180px;margin:auto;padding:40px 36px}.auth-intro{position:relative;padding:30px 0}.auth-intro .pill{margin:45px 0 25px}.auth-intro h1{font-size:clamp(37px,4.5vw,57px);max-width:610px}.auth-intro h1 span{color:var(--violet)}.auth-intro>p{color:var(--muted);font-size:15px;max-width:480px;margin-top:22px}.intro-stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;color:#6b62bd;font-size:13px;font-weight:720}.intro-decoration{font-size:45px;margin-top:55px;letter-spacing:20px;opacity:.8}.intro-decoration span{display:inline-block;transform:rotate(-15deg)}.auth-card{padding:33px}.auth-card h2{margin:11px 0 18px}.tabs{display:flex;background:#f3f4fa;border-radius:13px;padding:4px;margin:0 0 20px}.tabs button{flex:1;border:0;background:transparent;padding:10px;border-radius:10px;color:var(--muted);font-weight:750}.tabs button.active{background:white;color:var(--violet);box-shadow:0 2px 9px #2e356011}.auth-card form{display:grid;gap:15px}.privacy-note{font-size:12px;color:var(--muted);margin-top:20px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:17px max(24px,calc((100vw - 1210px)/2));background:white;border-bottom:1px solid var(--line)}.account{display:flex;align-items:center;gap:12px;font-weight:730;font-size:13px}.layout{max-width:1210px;padding:28px 24px 60px;margin:0 auto;display:grid;grid-template-columns:215px minmax(0,1fr);gap:29px}.side-nav{position:sticky;top:20px;align-self:start;display:flex;flex-direction:column;gap:7px}.nav-label{color:#9ba6ba;font-size:11px;letter-spacing:1.8px;font-weight:850;padding:8px 13px 13px}.nav-item{border:0;background:none;text-align:left;padding:13px 16px;color:#63718e;border-radius:13px;font-weight:750;display:flex;gap:13px;align-items:center}.nav-item span{font-size:20px}.nav-item.active{color:var(--violet);background:#eae8ff}.nav-item:hover{background:#efeffb}.nav-hint{margin-top:34px;background:white;border:1px solid var(--line);border-radius:18px;padding:16px;font-size:12px}.nav-hint strong{color:var(--violet)}.nav-hint p{color:var(--muted);margin-top:7px}main{min-width:0}.hero{background:linear-gradient(115deg,#e8e6ff,#f0efff 55%,#dbf7eb);border-radius:25px;padding:30px 34px;position:relative;overflow:hidden;margin-bottom:22px}.hero p{color:#68748f;max-width:580px;margin:11px 0 20px;font-size:14px}.hero:after{content:'🌿';position:absolute;font-size:125px;right:34px;top:15px;opacity:.22;transform:rotate(-18deg);pointer-events:none}.hero>*{position:relative;z-index:1}.flex{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.between{justify-content:space-between}.section-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:24px 0 14px}.section-title small{color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.stat{border:1px solid var(--line);border-radius:19px;background:white;padding:19px;min-width:0}.stat .emoji{font-size:22px}.stat strong{display:block;font-size:30px;line-height:1.4;margin:8px 0 2px;color:#3b426a}.stat small{color:var(--muted);font-size:12px}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.stack{display:grid;gap:14px}.item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}.item:last-child{border-bottom:0;padding-bottom:0}.item:first-child{padding-top:0}.item strong{font-size:15px}.item p{font-size:12px;color:var(--muted);margin-top:4px}.empty{padding:33px 18px;text-align:center;background:#fafbff;border:1px dashed #d9dfee;border-radius:15px;color:var(--muted);font-size:14px}.meta{font-size:12px;color:var(--muted)}.tag{border-radius:7px;background:var(--lav);padding:3px 8px;color:var(--violet);font-size:11px;font-weight:760}.tag.green{background:var(--mint);color:var(--mint-ink)}.tag.gray{background:#f0f2f7;color:#6e7890}.code{font-size:20px;letter-spacing:3px;font-weight:840;background:#f3f1ff;color:var(--violet);padding:10px 15px;border-radius:12px;font-variant-numeric:tabular-nums;display:inline-block}.word-card{min-height:270px;background:linear-gradient(137deg,#eceaff,#f5f3ff 63%,#e5fcf3);border:1px solid #e5e2fb;border-radius:24px;padding:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;cursor:pointer}.word-card strong{font-size:clamp(31px,5vw,44px)}.word-card small{color:var(--muted)}.word-card p{max-width:520px;font-size:14px}.card-actions{display:flex;gap:9px;flex-wrap:wrap;justify-content:center;margin-top:12px}.opt-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.option{padding:15px 12px;background:white;border:1px solid #dfe3f2;border-radius:12px;font-weight:700;min-height:57px}.option.selected{border-color:var(--violet);background:var(--lav);color:var(--violet)}.quiz-head{background:#eeecff;color:#5f58b8;border-radius:14px;padding:11px 16px;display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:800}.progress-track{height:8px;background:#eceefa;border-radius:99px;overflow:hidden;margin:16px 0}.progress-bar{height:100%;background:linear-gradient(90deg,#7162e5,#58bcac);border-radius:99px;transition:width .2s}.question{margin:26px 0;text-align:center}.question .qprompt{font-size:clamp(26px,4vw,39px);font-weight:850;color:#31385c;margin-bottom:9px}.result-score{font-size:65px;color:var(--violet);font-weight:850}.correct{color:var(--mint-ink)}.incorrect{color:var(--bad)}.review-row{padding:12px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.review-row:last-child{border-bottom:0}.review-row .left{flex:1;min-width:0}.review-row strong{font-size:14px}.review-row p{font-size:12px;color:var(--muted)}.tablewrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13px}th{text-align:left;color:var(--muted);font-weight:800;background:#f8f9fd}td,th{padding:12px;border-bottom:1px solid var(--line);white-space:nowrap}th:first-child{border-radius:8px 0 0 8px}.toast{display:none;position:fixed;right:22px;top:20px;z-index:100;border-radius:12px;padding:13px 17px;color:#fff;background:#303757;box-shadow:0 9px 35px #18204433;max-width:min(390px,90vw);font-size:13px}.toast.show{display:block}.mobile-nav{display:none}.help{font-size:12px;color:var(--muted);margin-top:10px}.notice{padding:11px 14px;background:#f0f7f4;color:#37775a;font-size:12px;border-radius:11px}.warning{background:#fff5ed;color:#a46d3d}.choice-btn{font-size:14px}.hidden,[hidden]{display:none!important}
@media(max-width:880px){.stats{grid-template-columns:repeat(2,1fr)}.grid3{grid-template-columns:repeat(2,1fr)}.layout{grid-template-columns:180px minmax(0,1fr);gap:16px;padding:22px 18px}.hero:after{font-size:80px;right:5px;top:20px}.auth-screen{grid-template-columns:1fr;max-width:560px;gap:15px}.auth-intro{padding:10px 0}.auth-intro .pill{margin:18px 0}.intro-decoration{display:none}.auth-card{padding:25px}}
@media(max-width:650px){.item{flex-wrap:wrap}.code{font-size:16px;letter-spacing:1.5px}.topbar{padding:11px 14px}.brand{font-size:18px}.brand small{font-size:7px}.logo{width:40px;height:40px;font-size:22px}.account{gap:6px;font-size:12px}.account .pill{display:none}.layout{display:block;padding:18px 13px 100px}.side-nav{display:none}.mobile-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);display:flex;justify-content:space-around;padding:8px 3px max(8px,env(safe-area-inset-bottom));z-index:40}.mobile-nav button{border:0;background:transparent;color:#8a95ac;padding:4px 7px;border-radius:9px;font-size:20px;display:grid;place-items:center;gap:0}.mobile-nav button.active{color:var(--violet);background:#f0efff}.mobile-nav small{font-size:10px;font-weight:750}.hero{padding:24px 21px;border-radius:20px}.hero:after{opacity:.10}.panel{padding:17px;border-radius:17px}.grid2,.grid3{grid-template-columns:1fr}.field-row{grid-template-columns:1fr}.stat{padding:16px}.stat strong{font-size:26px}.auth-screen{padding:24px 17px}.auth-intro h1{font-size:36px}.section-title{flex-wrap:wrap}.opt-grid{grid-template-columns:1fr}.word-card{min-height:240px}.intro-stats{gap:8px;font-size:12px}.item{align-items:flex-start}.item .btn{flex-shrink:0}.btn{font-size:13px;padding:10px 12px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* WordGarden 4.0 */
.analytics-row{padding:12px 0;border-bottom:1px solid var(--line)}
.analytics-row:last-child{border:0}
.analytics-track{height:10px;overflow:hidden;border-radius:99px;background:#eeeefa;margin-top:10px}
.analytics-track>span{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#8173e8,#62b5a3)}
textarea{line-height:1.5;min-height:85px}
#example-editor{margin-top:18px}
@media(max-width:650px){.mobile-nav button{padding:4px 5px}.mobile-nav small{font-size:9px}.analytics-row>.flex{align-items:flex-start}}

button:focus-visible,.word-card:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #6355d8;outline-offset:3px}
@media(max-width:650px){.topbar .brand small,.topbar #username{display:none}.topbar .brand{white-space:nowrap}.topbar .account{flex-shrink:0}}

/* WordGarden 5.0: individual reports */
.section-gap{margin-top:14px}.trend-chart{display:flex;gap:4px;margin-top:20px;align-items:flex-end;min-height:118px;max-width:100%;overflow-x:auto;padding-bottom:8px}.trend-day{flex:0 0 24px}
.trend-day{min-width:0;display:flex;flex-direction:column;align-items:center;gap:4px}.trend-count{font-size:10px;color:var(--muted)}.trend-track{height:80px;display:flex;align-items:end;justify-content:center;width:100%}
.trend-fill{background:#8076d7;border-radius:6px 6px 3px 3px;width:70%;min-width:8px}.trend-day small{font-size:9px;color:var(--muted);white-space:nowrap;transform:rotate(-35deg);transform-origin:center}
.mode-stats{display:grid;gap:12px;margin-top:16px}.mode-line{display:grid;grid-template-columns:minmax(0,1fr) 55px 52px;gap:6px;align-items:center;font-size:13px;border-bottom:1px solid var(--line);padding-bottom:8px}.mode-line strong{color:var(--violet)}.mode-line small{text-align:right;color:var(--muted)}
@media(max-width:800px){.trend-chart{overflow-x:auto}.trend-day small{font-size:8px}}@media(max-width:650px){.topbar .btn.small{padding:6px 8px}.account{gap:3px}}
@media(max-width:650px){.grid2,.grid3{grid-template-columns:minmax(0,1fr)}.grid2>.panel{min-width:0}.trend-chart{width:100%;min-width:0}}