:root{font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;color:#183d4a;background:#f8f6f2;font-synthesis:none;line-height:1.55}
*{box-sizing:border-box}
body{margin:0}
button,input{font:inherit}
button,a,input{-webkit-tap-highlight-color:transparent}
button{cursor:pointer;border:1px solid #d5e5e6;background:#fff;border-radius:10px;padding:9px 13px;color:#28515b}
button:hover{background:#edf7f5}
button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #49a8b8;outline-offset:3px}
button:disabled{opacity:.55;cursor:wait}
a{color:inherit;text-decoration:none}
.family-header{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:60px;padding:10px 24px;background:#f8f6f2e8;border-bottom:1px solid #e7e2e9}
.brand{display:flex;align-items:center;gap:10px;font-weight:750;white-space:nowrap}
.brand small{font-weight:400;font-size:12px;color:#7a9097;border-left:1px solid #d9e5e6;padding-left:10px}
.brand-icon{background:#267d89;color:white;border-radius:10px;display:grid;place-items:center;width:32px;height:32px;font-size:23px}
.family-header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}.family-intro-link{font-size:12px;color:#397c72;white-space:nowrap}
main{max-width:1120px;margin:auto;padding:20px 24px 40px}
.card{background:white;border:1px solid #e0ebec;border-radius:16px;padding:20px;box-shadow:0 4px 18px #1d606a04}
.login-card{max-width:440px;margin:48px auto;padding:28px}
.access-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:#e7f3ef;color:#278076;font-size:28px;margin-bottom:18px}
.login-card .muted{line-height:1.8}
.login-card .hint{font-size:11px;color:#5f7378;line-height:1.7;margin:8px 0 0}
.parent-login-modes{display:flex;gap:6px;margin:14px 0 4px;padding:3px;border-radius:9px;background:#eef4f1}
.parent-login-modes button{flex:1;border:0;border-radius:7px;padding:7px 8px;background:transparent;color:#55716a;font:inherit;font-size:11px;cursor:pointer}
.parent-login-modes button.is-active{background:#fff;color:#1f5d50;box-shadow:0 1px 4px #21453a18;font-weight:700}
#parent-password-dialog label{display:block;margin:9px 0;font-size:12px;color:#35584e}
#parent-password-dialog input{display:block;width:100%;margin-top:5px;padding:9px 10px;border:1px solid #d5e2db;border-radius:8px;background:#fff;font:inherit;color:#21483f}
#parent-password-dialog .error{margin:6px 0;font-size:11px;color:#b34542}
.login-card .error:empty{display:none}
.login-card .error{margin:0 0 14px}
.login-card input{letter-spacing:.04em}
h1{font-size:25px;line-height:1.3;margin:10px 0}
h2{font-size:19px;margin:0}
h3{font-size:15px;margin:0}
p{margin:8px 0}
.muted{font-size:13px;color:#6e858d}
.login-card form{margin-top:25px}
label{display:block;font-size:13px;font-weight:650;margin:16px 0}
input{display:block;width:100%;padding:12px 13px;border:1px solid #d9e6e7;border-radius:9px;margin-top:7px;background:#faffff;color:#183d4a}
.primary{color:white;background:#27848b;border-color:#27848b}
.primary:hover{background:#206f76}
.login-card .primary{width:100%;padding:12px}
.error{color:#b34542;font-size:13px}
.welcome{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:14px}
.welcome h1{font-size:21px;margin:0}
.refresh{white-space:nowrap;font-size:12px}
.child{margin-top:14px}
.child-heading{display:flex;gap:12px;align-items:center;padding-bottom:14px;border-bottom:1px solid #edf2f3}
.avatar{width:38px;height:38px;display:grid;place-items:center;flex-shrink:0;background:#e0f2ed;color:#288071;font-size:19px;border-radius:12px;font-weight:700}
.child-heading .muted{margin:1px 0;overflow-wrap:anywhere}
.summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:14px 0 20px}
.summary-filter{padding:9px 12px;background:#f5f9fa;border:1px solid transparent;text-align:left;border-radius:10px;font-size:12px;color:#6c838b}
.summary-filter strong{display:block;font-size:23px;color:#265966;font-weight:650;line-height:1.4}
.summary-filter:hover{background:#edf7f5;border-color:#c9e0dc}
.summary-filter.is-active{color:#246d67;background:#e7f3ef;border-color:#7db6aa;box-shadow:inset 0 0 0 1px #7db6aa}
.child-columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:24px}
.child-columns.no-lessons{grid-template-columns:minmax(0,1fr);gap:14px}
.course-empty{margin:0;font-size:12px;color:#7c9197;padding:0 0 12px;border-bottom:1px solid #edf2f3}
.course-empty span{color:#3d6670;font-weight:650;margin-right:10px}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}
.section-heading small{color:#7d9298;font-size:11px;white-space:nowrap}
.range-note{font-size:11px;line-height:1.7;color:#7c8c72;background:#f5f8ef;border-radius:8px;padding:9px 11px;margin:0 0 12px}
.lesson{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid #edf2f3;align-items:flex-start}
.lesson-dot{width:8px;height:8px;background:#b6c9ce;border-radius:50%;margin-top:7px;flex-shrink:0}
.lesson-dot.live{background:#36a184;box-shadow:0 0 0 4px #e4f5ee}
.lesson p{font-size:12px;color:#768c93;margin:4px 0 0}
.lesson h3{font-size:13px}
.assignment{padding:14px;background:#f8fbfb;border:1px solid #e8f0f0;border-radius:12px;margin-bottom:10px;overflow-wrap:anywhere}
.assignment:last-child{margin-bottom:0}
.assignment-title{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.assignment h3{font-size:14px;min-width:0}
.badge{font-size:10px;line-height:1.7;border-radius:6px;padding:2px 7px;white-space:nowrap;background:#eaf0f5;color:#6a829a}
.badge.reviewed{background:#e1f2ea;color:#308266}
.badge.returned{background:#fff1e2;color:#a76b26}
.badge.submitted{background:#e9eeff;color:#6474af}
.assignment .meta{font-size:11px;color:#778e95;margin:7px 0}
.feedback{margin-top:12px;border-left:3px solid #79b7a8;padding:1px 0 1px 11px;white-space:pre-wrap;font-size:13px;color:#4d726d}
.feedback strong{font-size:11px;color:#318479;display:block;margin-bottom:3px}
.score{font-size:11px;color:#318479;margin-top:7px}
.empty{padding:18px 14px;text-align:center;color:#778e95;font-size:13px;border-radius:12px;background:#f8fbfb}
.update-note{display:flex;justify-content:center;align-items:flex-start;gap:16px;margin-top:16px;font-size:11px;color:#748b92}
.sync-status{margin:0;white-space:nowrap}
.sync-status.is-error{color:#ad4f42}
.update-note details{max-width:440px}
.update-note summary{cursor:pointer}
.update-note details p{margin:6px 0}
.sync-error{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid #efc8bc;border-radius:10px;background:#fff5f0;color:#954b39;font-size:12px;margin-bottom:14px}
.sync-error strong,.sync-error span{display:block}
.sync-error button{white-space:nowrap;border-color:#e7bcaf;color:#954b39}
.session-error{max-width:450px;margin:48px auto}
.session-error button{margin:10px 10px 0 0}
#parent-message{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);max-width:90%;background:#163d4a;color:white;padding:10px 17px;border-radius:10px;font-size:13px;z-index:20;display:none}
#parent-message.visible{display:block}
.family-tabs{display:flex;gap:6px;margin:14px 0}
.family-tabs button{border-color:transparent;background:#f5f9fa;font-size:13px;padding:8px 14px}
.family-tabs .is-active{background:#e7f3ef;border-color:#7db6aa;color:#246d67;font-weight:650}
.family-gallery>.meta{font-size:11px;color:#7b9296}
.gallery-scope{color:#6e858d;font-size:12px;margin:0 0 14px}
.works-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.work-card{display:flex;flex-direction:column;min-width:0;padding:0;overflow:hidden;text-align:left;border-radius:12px;border-color:#e0ebec;background:#fbfdfd}
.work-cover,.work-placeholder{width:100%;height:136px;object-fit:contain;background:#edf5f3}
.work-placeholder{display:grid;place-items:center;font-size:34px;color:#71a797}
.work-content{display:flex;flex-direction:column;gap:6px;padding:12px;min-width:0;width:100%}
.work-content strong{font-size:14px;overflow-wrap:anywhere}
.work-label,.work-time{font-size:10px;color:#6e858d;overflow-wrap:anywhere}
.work-excerpt{font-size:12px;line-height:1.65;color:#59747c;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere;white-space:pre-wrap}
.gallery-more{display:block;margin:16px auto 0;font-size:12px}
.gallery-error{padding:10px 12px;background:#fff5f0;border-radius:10px;color:#954b39;font-size:12px}
.gallery-error button{padding:3px 8px;font-size:12px;margin-left:5px}
#parent-work-dialog{width:min(760px,calc(100% - 28px));max-height:calc(100dvh - 32px);border:1px solid #d5e5e6;border-radius:16px;padding:20px;color:#183d4a;overflow:auto}
#parent-work-dialog::backdrop{background:#122e3b77;backdrop-filter:blur(3px)}
.work-dialog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.work-dialog-heading h2{overflow-wrap:anywhere}
.work-dialog-heading button{padding:3px 10px;font-size:21px;line-height:1.4;flex-shrink:0}
#parent-work-dialog .meta{font-size:12px;color:#6e858d}
.work-full-image,#parent-work-dialog video{display:block;max-width:100%;max-height:60dvh;margin:16px auto;object-fit:contain;border-radius:10px}
#parent-work-dialog audio{display:block;width:100%;margin:16px auto}
.work-full-text{font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85;margin:16px 0;padding:14px;border-radius:10px;background:#f5f9fa}
.work-download{display:inline-block;margin-top:16px;padding:8px 12px;border:1px solid #c3dcd7;border-radius:10px;font-size:13px;color:#267a6f}
@media(max-width:700px){
 .family-header{padding:10px 16px;min-height:58px}
 main{padding:16px 14px 30px}
 .card{padding:16px;border-radius:14px}
 .login-card{margin:30px auto}
 .welcome{gap:10px}
 .welcome h1{font-size:20px}
 .refresh{padding:7px 9px}
 .child-columns{grid-template-columns:minmax(0,1fr);gap:20px}
 .summary{margin:14px 0 18px;gap:6px}
 .summary-filter{padding:8px 6px;font-size:11px;text-align:center}
 .summary-filter strong{font-size:21px}
 .section-heading{margin-bottom:8px}
 h2{font-size:17px}
 .assignment{padding:12px}
 .brand{font-size:15px;gap:8px}
 .brand small{font-size:11px}
 .family-header-actions{gap:8px}.family-header-actions button{padding:7px 10px;font-size:12px}.family-intro-link{font-size:11px}
 .update-note{justify-content:flex-start;gap:12px}
 .sync-error{align-items:flex-start}
 .works-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
 .work-cover,.work-placeholder{height:104px}
 .work-content{padding:10px;gap:5px}
 .work-content strong{font-size:13px}
 #parent-work-dialog{padding:16px}
}

/* Parent login now mirrors the student entry layout. */
.parent-entry-layout{max-width:1100px;min-height:calc(100vh - 76px);margin:auto;padding:32px 24px 60px;display:grid;grid-template-columns:1.25fr .9fr;gap:80px;align-items:center}
.parent-entry-intro{padding-left:18px}
.parent-entry-eyebrow{font-size:10px;letter-spacing:.18em;color:#397c72;font-weight:600}
.parent-entry-intro h1{font-size:52px;line-height:1.28;letter-spacing:-.045em;margin:16px 0;color:#183d4a;font-weight:700}
.parent-entry-intro h1 span{color:#267d89}
.parent-entry-intro>p{font-size:13px;line-height:1.8;color:#6b8581;max-width:420px}
.parent-entry-orbit{position:relative;width:260px;height:160px;margin-top:28px}
.parent-entry-orbit:before{content:"";position:absolute;left:0;top:4px;width:132px;height:132px;border:1px solid #cfdfdc;border-radius:50%}
.parent-entry-orbit:after{content:"";position:absolute;inset:16px 144px 16px 16px;border:1px dashed #dbe7e4;border-radius:50%}
.parent-entry-orbit{font-size:120px;line-height:1;color:#267d89;font-weight:300}
.parent-entry-card{max-width:440px;width:100%;justify-self:end;margin:0;padding:30px}
.parent-entry-card h2{font-size:25px;margin:0 0 4px;letter-spacing:-.02em}
.parent-entry-card>.muted{font-size:12px;margin:0 0 20px}
.parent-entry-card label{display:block;margin:0 0 13px;font-size:12px;color:#35584e}
.parent-entry-card input{display:block;width:100%;margin-top:5px;padding:11px 12px;border:1px solid #d5e2db;border-radius:9px;background:#fff;font:inherit;color:#21483f}
.parent-entry-card .primary{width:100%;min-height:44px;margin-top:4px}
.parent-entry-card .hint{font-size:10px;color:#7a9097;line-height:1.7;margin:4px 0 13px}
.parent-entry-card .error:empty{display:none}.parent-entry-card .error{font-size:11px;color:#b34542;margin:0 0 8px}
@media(max-width:850px){.parent-entry-layout{grid-template-columns:1fr;gap:26px;padding:22px 20px 36px;min-height:auto;max-width:520px}.parent-entry-intro{padding-left:0}.parent-entry-intro h1{font-size:34px;margin:8px 0}.parent-entry-orbit{display:none}.parent-entry-card{justify-self:stretch;max-width:none;padding:24px}}

.brand-logo{display:block;width:34px;height:38px;object-fit:contain;flex:none}
.brand-word{display:flex;flex-direction:column;line-height:1.1;gap:2px}
.brand-word strong{font-size:21px;letter-spacing:-.04em;color:#302d38}
.brand-word strong span{color:#6854ac;margin-left:3px}
.brand-word small{font-weight:400;font-size:9px;letter-spacing:.2em;color:#706a78;border:0;padding:0}


/* Classroom works: theme tabs first, file-type tabs only after a theme is chosen. */
.family-work-theme-tabs,.family-work-kind-tabs{display:flex;gap:6px;overflow-x:auto;padding:2px 0 5px;margin:10px 0}
.family-work-theme-tabs button,.family-work-kind-tabs button{white-space:nowrap;border:1px solid #dbe8e3;background:#f7fbf9;color:#4d6b62;border-radius:999px;padding:7px 13px;font-size:12px;cursor:pointer}
.family-work-theme-tabs button.is-active{background:#e4f3ee;border-color:#67a99b;color:#1f6759;font-weight:700}
.family-work-kind-tabs button{border-radius:8px;padding:6px 10px;font-size:11px}
.family-work-kind-tabs button.is-active{background:#eef6f3;border-color:#8db9ae;color:#246d67;font-weight:650}
.family-work-kind-tabs{margin-top:-3px;padding-bottom:9px;border-bottom:1px solid #edf3f0}