:root{--navy:#102B46;--navy2:#203E58;--green:#159A78;--mint:#E7F7F1;--gold:#D9992B;--cream:#FFF5DE;--red:#CF4A54;--bg:#F5F7FA;--text:#203246;--muted:#78889A;--line:#E6ECF1;--white:#fff;font-family:system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;color:var(--text)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);line-height:1.65}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}a{color:var(--green)}.shell{max-width:940px;margin:0 auto;padding:16px 16px calc(92px + env(safe-area-inset-bottom));}.brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}.brand .logo{width:52px;height:52px;border-radius:15px}.brand h1{font-size:19px;line-height:1.15;margin:0;direction:ltr;text-align:right;color:var(--navy)}.muted,.hint{color:var(--muted);font-size:12px}.section{font-weight:800;font-size:18px;color:var(--navy);margin:17px 0 8px}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;margin:12px 0;box-shadow:0 2px 12px rgba(16,43,70,.025)}.panel.mint{background:var(--mint);border-color:var(--mint)}.panel.cream{background:var(--cream);border-color:var(--cream)}.stack{display:grid;gap:10px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:9px}.flex{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.flex-between{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}.stretch{flex:1}.heading{font-weight:800;color:var(--navy);font-size:16px}.num{font-size:27px;font-weight:800;color:var(--green)}.pill{display:inline-flex;align-items:center;white-space:nowrap;padding:5px 9px;border-radius:99px;background:var(--mint);color:var(--green);font-size:11px;font-weight:750}.pill.gold{background:var(--cream);color:#9A6517}.pill.red{background:#FFF0F0;color:var(--red)}.pill.grey{background:#eff3f6;color:#748596} .bar{height:8px;background:#e9eef2;border-radius:9px;overflow:hidden;margin:8px 0}.bar>div{background:var(--green);height:100%;border-radius:inherit}.btn{border:0;background:var(--green);color:white;padding:10px 16px;border-radius:11px;font-weight:700;min-height:42px}.btn.dark{background:var(--navy)}.btn.ghost{background:#eef2f5;color:var(--navy)}.btn.danger{background:#fff0f0;color:var(--red)}.btn.full{width:100%}.btn.small{font-size:12px;min-height:34px;padding:6px 12px}label.field{font-weight:650;font-size:12px;color:#405367;display:block;margin:7px 0 4px}input,select,textarea{border:1px solid #d4dfe7;border-radius:11px;background:#fff;color:var(--text);padding:11px 12px;width:100%;outline:none;font-size:15px}input:focus,textarea:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px #159a781b}textarea{min-height:95px;resize:vertical}input[type=checkbox]{width:auto;accent-color:var(--green)}.nav{background:#fff;position:fixed;bottom:0;left:0;right:0;border-top:1px solid var(--line);display:flex;justify-content:center;z-index:15;padding:6px 8px calc(8px + env(safe-area-inset-bottom));box-shadow:0 -4px 20px #102b4612}.navin{max-width:940px;width:100%;display:flex;gap:3px}.nav button{flex:1;background:transparent;border:0;border-radius:10px;color:#8292a3;font-size:11px;padding:8px 4px;font-weight:700}.nav button.active{color:var(--green);background:var(--mint)}.nav .sym{display:block;font-size:20px;line-height:1.2;margin-bottom:2px}.splash{display:grid;justify-items:center;align-content:center;min-height:85vh;gap:6px}.splash h1{color:var(--navy);font-size:23px}.login{max-width:410px;margin:9vh auto 20px}.login .panel{padding:23px}.login-logo{width:78px;height:78px;border-radius:21px;display:block;margin:0 auto 10px}.login h1{text-align:center;font-size:24px;color:var(--navy);margin:0}.login p{text-align:center;margin:5px 0 22px;color:var(--muted);font-size:13px}.topicrow{display:flex;align-items:center;gap:10px;padding:13px 10px;margin:6px 0;background:#fff;border:1px solid var(--line);border-radius:12px;cursor:pointer}.topicrow .details{flex:1;min-width:0}.topicrow strong{display:block;color:var(--navy);font-size:14px;direction:ltr;text-align:right}.chapter-head{cursor:pointer;padding:10px}.chapter-items{border-top:1px solid var(--line);margin-top:8px;padding-top:8px}.stagerow{padding:12px;border-radius:12px;border:1px solid var(--line);margin:7px 0;display:flex;align-items:center;gap:10px}.stagerow.done{background:var(--mint)}.stagerow.current{background:var(--cream)}.feedback{margin:6px 0;color:var(--red);font-size:13px}.stat{border:1px solid var(--line);border-radius:14px;padding:13px;background:#fff}.letter{white-space:pre-wrap;overflow-wrap:anywhere}.info{font-size:13px;color:#43556a}.hidden{display:none!important}#toast{position:fixed;bottom:94px;right:50%;transform:translateX(50%);background:var(--navy);color:#fff;padding:10px 16px;border-radius:14px;max-width:min(500px,95vw);z-index:60;opacity:0;pointer-events:none;transition:.2s;font-size:13px;text-align:center}#toast.show{opacity:1}.hero{background:var(--navy);color:white;border-radius:20px;padding:19px}.hero .heading{color:white}.hero .muted{color:#b9d0de}.hero .pill{background:#ffffff20;color:white}.footnote{margin-top:17px;padding:12px;font-size:11px;color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:10px}@media(min-width:700px){.three{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.shell{padding-top:25px}.login{margin-top:13vh}}@media(max-width:360px){.grid2{grid-template-columns:1fr}.brand h1{font-size:17px}}