:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#183f38;background:#f6f5ef;font-synthesis:none}*{box-sizing:border-box}body{margin:0}header{max-width:1280px;margin:auto;padding:28px 36px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #dedfd4}.brand{font-size:25px;font-weight:800;text-decoration:none;color:inherit;letter-spacing:-1px}.brand span{font-weight:400}.brand .dot{color:#db7343;font-weight:900}.badge{border:1px solid #ccd7cb;border-radius:30px;padding:8px 14px;font-size:12px}main{max-width:1280px;margin:auto;padding:0 36px}.intro{padding:55px 0 35px}.eyebrow{font-size:11px;font-weight:750;letter-spacing:2px;color:#65776a}h1{font-family:Georgia,serif;font-weight:400;font-size:clamp(38px,5vw,65px);line-height:1.04;margin:17px 0 22px;letter-spacing:-2px}.intro>p:last-child{color:#64736a;max-width:480px;line-height:1.7}.toolbar,.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px}.toolbar{border-top:1px solid #dedfd4;padding:22px 0}h2{font-size:21px;margin:0 0 7px}.toolbar p{font-size:13px;color:#65776a;margin:0}button{background:#214f43;color:white;border:1px solid #214f43;border-radius:9px;padding:12px 17px;font:inherit;font-size:13px;font-weight:650;cursor:pointer}button:hover{filter:brightness(.94)}button:disabled{opacity:.5;cursor:default}button.secondary{background:transparent;color:#214f43;border-color:#d2dccf;padding:8px 10px;font-size:12px}.search{display:block;font-size:12px;font-weight:650;margin:22px 0}.search input{display:block;width:100%;margin-top:9px;padding:15px 18px;border:1px solid #ccd7cb;border-radius:10px;background:#fffefa;font:inherit;font-size:15px;color:#183f38}input:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #df9c68;outline-offset:3px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.card{background:#fffefa;border:1px solid #dedfd4;border-radius:15px;padding:24px;overflow:hidden}.card-top{display:flex;justify-content:space-between;gap:10px}.type{font-size:10px;text-transform:uppercase;letter-spacing:1px;background:#edf0e5;border-radius:4px;padding:5px 8px}.number{font-size:12px;color:#859086}.card h3{font-family:Georgia,serif;font-size:25px;font-weight:400;line-height:1.2;margin:18px 0 10px}.meaning{color:#677368;font-size:14px;line-height:1.5;min-height:42px}.card img{width:100%;height:210px;object-fit:contain;background:#f3f0e8;border-radius:9px;margin:10px 0}.sentence{font-size:15px;line-height:1.6}.translation{font-size:13px;color:#6d766e;line-height:1.6}.sounds{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}details{font-size:12px;margin-top:20px;border-top:1px solid #e5e6dd;padding-top:15px}summary{cursor:pointer}.metadata{font-size:12px;color:#667668}#status{font-size:14px;line-height:1.5}#status:empty{display:none}#importPanel{background:#fffefa;padding:24px;border:1px solid #ccd7cb;border-radius:13px}#importPanel p{font-size:14px;line-height:1.6}.table-wrap{overflow:auto;margin:20px 0;max-height:380px}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}td,th{padding:12px;border-bottom:1px solid #e1e5d9;min-width:100px}th{background:#edf0e5}.error{color:#a62f29}.warning{color:#79510f}li{margin:8px 0;font-size:13px}footer{padding:45px 0;color:#778276;font-size:12px}[hidden]{display:none!important}@media(max-width:950px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){header{padding:22px 18px}.badge{font-size:10px}main{padding:0 18px}.grid{grid-template-columns:1fr}.toolbar,.section-head{align-items:flex-start;flex-direction:column}.intro{padding-top:35px}}
/* Milestone 02: focused learning and saved self-reports. */
.views{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 18px}.views button{background:transparent;color:#315747;border-color:#ccd7cb}.views button[aria-pressed=true]{background:#214f43;color:#fff}.learn-setup{max-width:720px;border:1px solid #dedfd4;background:#fffefa;border-radius:15px;padding:26px}.learn-setup>label{display:block;font-size:13px;font-weight:650;margin-bottom:20px}select{display:block;margin-top:8px;width:100%;padding:13px;border:1px solid #ccd7cb;border-radius:8px;font:inherit;background:#fffefa;color:#214f43}select:focus-visible{outline:3px solid #df9c68}.check{display:flex!important;align-items:center;gap:10px}.learning-note{font-size:13px;line-height:1.7;color:#65776a}.session-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.session-top p{font-size:14px}#learnSession{max-width:850px;margin:0 auto}progress{width:100%;height:7px;accent-color:#214f43;margin:8px 0 24px}.learn-card{background:#fffefa;border:1px solid #dedfd4;border-radius:17px;padding:38px;text-align:center}.learn-card h3{font-family:Georgia,serif;font-size:34px;font-weight:400;line-height:1.3;margin:24px 0}.learn-card .learn-prompt{font-size:clamp(25px,4vw,40px)}.learn-answer{font-size:22px;line-height:1.5;border-top:1px solid #dedfd4;margin-top:27px;padding-top:23px}.learn-image{max-width:100%;max-height:260px;object-fit:contain;border-radius:12px}.learn-card .sounds,.rating-actions{justify-content:center;display:flex;flex-wrap:wrap;gap:10px}.learn-card .skip{display:block;margin:25px auto 0}.retry{margin-top:17px}.progress-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:15px 0 35px}.stat-panel{padding:24px;border:1px solid #dedfd4;border-radius:12px;background:#fffefa}.stat-panel h3{margin-top:0}.intro{padding-top:36px;padding-bottom:24px}.intro h1{font-size:clamp(34px,4vw,52px)}@media(max-width:620px){.learn-card{padding:24px 18px}.progress-stats{grid-template-columns:1fr}.views button{padding:10px 13px}.session-top{flex-wrap:wrap}}

/* M3: explicit content classification and local owner review. */
.owner-note{padding:16px 20px;background:#eee9da;border-left:4px solid #987341;border-radius:5px;font-size:13px;line-height:1.7}.policy-filter{display:block;max-width:400px;font-size:13px;font-weight:650}.policy-badge{display:inline-block;background:#edf0e5;padding:7px 10px;border-radius:6px;font-size:11px;line-height:1.5}.review-open{margin-top:18px}.content-review{border-top:2px solid #ccd7cb;margin-top:20px;padding-top:12px}.content-review h4{font-size:16px}.content-review label{display:block;font-size:13px;margin:16px 0;line-height:1.6}.content-review input[type=checkbox]{flex-shrink:0;width:17px;height:17px;accent-color:#214f43}.review-actions{display:flex;gap:10px;flex-wrap:wrap}.content-review details p{line-height:1.6;border-bottom:1px solid #e5e6dd;padding-bottom:8px}

/* M3.1: read-only spreadsheet classification preview and atomic apply. */
.toolbar-actions{display:flex;flex-wrap:wrap;gap:10px}#excelPolicyPanel{background:#fffefa;padding:24px;border:1px solid #ccd7cb;border-radius:13px;margin-bottom:22px}#excelPolicyPanel>p,#excelPolicyPanel>label{font-size:13px;line-height:1.7}#excelPolicyPanel .check{margin:20px 0;align-items:flex-start}#excelConfirm{margin-top:5px;flex-shrink:0;width:17px;height:17px;accent-color:#214f43}

/* M4: accounts and invitations. */
.account-header{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.auth-main{max-width:640px;padding-top:50px}.auth-main h1{font-size:46px}.auth-card{background:#fffefa;border:1px solid #dedfd4;border-radius:15px;padding:28px;margin:25px 0}.auth-card label,.invite-form label,#inviteResult label{display:block;font-size:13px;font-weight:650;margin-bottom:20px}.auth-card input,.invite-form input,#inviteLink{display:block;width:100%;margin-top:8px;padding:13px;border:1px solid #ccd7cb;border-radius:8px;font:inherit;background:#fffefa;color:#183f38}.auth-card button{width:100%;margin-top:12px}#authStatus{font-size:14px;line-height:1.6}.invite-form{display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap}.invite-form label{min-width:260px;flex:1;margin:0}.invite-form button{margin:0 0 1px}#inviteResult{margin:24px 0;padding:20px;border:1px solid #ccd7cb;border-radius:12px;background:#fffefa}#inviteLink{font-size:13px;font-weight:400}
#practiceAccess{margin:22px 0;padding:24px;background:#fffefa;border:1px solid #ccd7cb;border-radius:13px;line-height:1.65}#acceptanceForm{margin-top:20px;max-width:800px}#acceptanceForm .check{margin:16px 0}#userRows td:last-child{min-width:290px}#userRows td:last-child button{margin:4px}#userRows input[type=number]{width:80px;padding:8px;border:1px solid #ccd7cb;border-radius:6px;font:inherit}
.package-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:20px}.package-panel{padding:22px;background:#f3f2e9;border:1px solid #d5ddce;border-radius:12px}.package-panel h3{font-size:20px;margin:10px 0}.package-panel p{overflow-wrap:anywhere}.package-explainer{font-size:14px;line-height:1.8}.package-explainer summary{font-size:16px;font-weight:650}@media(max-width:700px){.package-grid{grid-template-columns:1fr}}

/* M6.5: bounded browsing and focused practice ranges. */
.range-filter{display:block;max-width:400px;font-size:13px;font-weight:650;margin-top:18px}
.pagination{display:flex;align-items:center;justify-content:center;gap:20px;margin:22px 0;font-size:13px;flex-wrap:wrap}
#entries[aria-busy=true]{min-height:100px}
#rangeNote{margin-top:-6px;margin-bottom:22px}
@media(max-width:620px){.pagination{gap:12px}.range-filter{max-width:none}}

.content-guide{max-width:900px;margin:2rem auto;padding:1rem;line-height:1.7}.content-guide pre{white-space:pre-wrap;overflow-wrap:anywhere}