:root{--ink:#17302e;--muted:#66807d;--teal:#12675c;--teal-dark:#0b4d45;--mint:#f0f7f6;--orange:#fff8ef;--line:#dce9e7;--paper:#fff;--bg:#f4f7f8;--shadow:0 12px 34px rgba(21,66,61,.09);font-family:ui-rounded,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--bg);padding-bottom:82px}button,input,select{font:inherit}button{cursor:pointer;border:0;color:inherit}button:disabled{cursor:default}.brand-bar{height:82px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center}.brand-inner{width:min(980px,100%);margin:auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between}.brand-inner img{width:220px;height:auto;display:block}.family-badge{font-size:13px;color:var(--teal);border:1px solid #c9e0dc;padding:7px 10px;border-radius:999px;background:#f6fbfa}.screen{width:min(760px,100%);margin:0 auto;padding:28px 18px 30px}.eyebrow{margin:0 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.print-route .bottom-nav{display:none}
.print-hint{font-size:12px;color:var(--muted)}
@media(max-width:560px){.print-hint{width:100%;padding:0 4px}}


.observation-grid select{width:140px;flex:0 0 140px}.print-route{padding-bottom:0}.print-route .bottom-nav{display:none}

.welcome>div:first-child,.lesson-heading>div,.panel-heading>div,.print-header>div:first-child{min-width:0}.welcome h1,.lesson-heading h1,.page-title h1,.panel-heading h2,.print-sentence-title strong{overflow-wrap:anywhere}.print-sheet{overflow:hidden}
@media(max-width:560px){.panel-heading{align-items:flex-start}.panel-heading h2{font-size:18px}.print-header{display:block}.qr-box{width:auto;display:flex;align-items:center;gap:8px;text-align:left;margin-top:12px}.qr-box img{margin:0}.print-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px}.print-columns{grid-template-columns:1fr}.print-hint{width:100%;padding:0 4px}}

.screen,.today-card,.parent-card,.practice-panel,.settings-card{min-width:0;max-width:100%}.welcome,.today-card-top,.panel-heading,.lesson-heading{min-width:0}.mini-sentence-list b{min-width:0;overflow-wrap:anywhere}.parent-card>p,.muted,.source-note{overflow-wrap:anywhere}.today-card,.parent-card{overflow:hidden}

body{overflow-x:hidden}.notice>div,.notice p,.mini-sentence-list{min-width:0}.notice p,.mini-sentence-list b,.print-meta span{overflow-wrap:anywhere}.mini-sentence-list em{flex:0 0 auto}.parent-metrics,.parent-metrics div{min-width:0}

/* mobile containment */
.screen,.screen *{max-width:100%}.welcome>div:first-child{flex:1 1 0;width:0}.welcome h1,.page-title h1,.lesson-heading h1,.quiz-screen h1{white-space:normal;word-break:break-word;max-width:100%}.parent-metrics{width:100%;grid-template-columns:repeat(3,minmax(0,1fr))}.parent-metrics div{overflow:hidden}.print-header>div:first-child{flex:1 1 auto;min-width:0}