:root{--ink:#14234b;--blue:#002395;--paper:#f6f4ed;--line:#dedfd5;--muted:#56617b;--yellow:#f5c85d}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,sans-serif}button,input,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}header{border-bottom:1px solid var(--line);padding:20px 6%;display:flex;justify-content:space-between;align-items:center;gap:15px}.brand{font-weight:850;font-size:22px;letter-spacing:-1px}.brand span{color:var(--blue)}nav{display:flex;gap:22px}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}main{max-width:1140px;margin:auto;padding:44px 24px}.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:45px;align-items:center}.eyebrow{font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--blue)}h1{font-size:clamp(38px,5.5vw,66px);line-height:1.07;letter-spacing:-3px;margin:18px 0 24px}h2{font-size:29px;letter-spacing:-1px;line-height:1.2}h3{line-height:1.3}p{color:var(--muted)}.btn{border:0;border-radius:12px;padding:13px 19px;background:var(--blue);color:white;font-weight:700;display:inline-block}.secondary{background:white;color:var(--ink);border:1px solid var(--line)}.actions{display:flex;flex-wrap:wrap;gap:12px}.note{font-size:13px}.board{background:var(--ink);border-radius:25px;color:white;padding:32px;box-shadow:12px 12px 0 #e2e8f7;transform:rotate(1deg)}.board p{color:#d0dcff}.board .small{font-size:12px;letter-spacing:2px}.sample{padding:18px 0;font-size:22px;border-bottom:1px solid #5c75b6}.sample del{color:#c4b69b;text-decoration-color:#f5c85d}.sample strong{color:var(--yellow)}.section{margin-top:65px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{border:1px solid var(--line);background:#fff;border-radius:19px;padding:23px}.card.featured{background:#e8eefb;border:1px solid #aebde0}.pill{font-size:11px;text-transform:uppercase;letter-spacing:1px;font-weight:800;border-radius:30px;background:#e9eefb;padding:5px 10px;display:inline-block}.num{font-size:33px;font-weight:850;color:var(--blue)}.card button{width:100%}.workspace{background:white;border:1px solid var(--line);border-radius:22px;padding:30px;margin-top:30px;scroll-margin-top:25px}.workspace h2{margin-top:0}.question{font-size:20px;color:var(--ink)}.options{display:grid;gap:10px}.option{text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px 16px}.option:hover{border-color:var(--blue)}.option:disabled{cursor:default}.good{background:#e8efff;border-color:#6487ca}.bad{background:#fff0e6;border-color:#c99d7a}.feedback{background:#eef2fb;padding:18px;border-radius:12px;margin:18px 0}.feedback p{margin:8px 0}textarea{width:100%;min-height:110px;border:1px solid var(--line);border-radius:10px;padding:12px}progress{width:100%;height:8px;accent-color:var(--blue)}.topline{display:flex;justify-content:space-between;gap:15px;font-size:13px;color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.price{font-size:38px;font-weight:850}.price small{font-size:16px;font-weight:400}.footer{border-top:1px solid var(--line);padding:24px;text-align:center;color:var(--muted);font-size:12px}.hidden{display:none}label{display:block;margin:15px 0}select{font:inherit;padding:10px;border:1px solid var(--line);border-radius:9px;width:100%;background:white}.status{background:#fff1c9;padding:9px 16px;font-size:12px;text-align:center;color:#64501b}.stats{display:flex;gap:24px;margin-top:25px;border-top:1px solid var(--line);padding-top:18px}.stats strong{display:block;font-size:24px}.stats span{font-size:12px;color:var(--muted)}@media(max-width:750px){header{padding:16px 20px}nav{gap:12px;font-size:13px}.hero,.cards,.split{grid-template-columns:1fr}.hero{gap:28px}h1{letter-spacing:-1.5px}.board{transform:none}.section{margin-top:42px}.workspace{padding:22px}.cards{gap:12px}main{padding-top:28px}}

.course-hero{max-width:850px}.course-hero h1{font-size:clamp(35px,5vw,54px)}.week-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.days{display:grid;gap:8px;margin-top:18px}.day{display:flex;align-items:center;justify-content:space-between;text-align:left;width:100%;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:11px 13px;gap:12px}.day b{font-size:13px}.done{border-color:#94acda;background:#edf3ff}.tag{font-size:11px;white-space:nowrap;color:var(--blue)}.lesson-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.lesson-tabs span{font-size:12px;padding:5px 10px;border-radius:20px;background:var(--paper)}.lesson-tabs .active{background:var(--blue);color:white}.rule{border-left:4px solid var(--yellow);padding:15px 20px;background:#f8f7ee}.writing-check{display:flex;align-items:flex-start;gap:10px;padding:7px 0;margin:0}.writing-check input{margin-top:7px}.compare{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--ink)}.ex-small{font-size:13px}.back{background:none;border:0;color:var(--blue);font-weight:700;padding:10px 0}.notice{font-size:13px;background:#e8eefb;padding:13px;border-radius:10px}.result-score{font-size:45px;font-weight:800;color:var(--blue)}@media(max-width:750px){.week-grid{grid-template-columns:1fr}.day{padding:12px}.result-score{font-size:35px}}
@media(max-width:500px){header{flex-wrap:wrap}nav{width:100%;justify-content:space-between}}

.observation{font-size:18px;line-height:1.8;background:#f6f4ed;padding:18px;border-radius:12px;color:var(--ink)}.written-answer{width:100%;border:1px solid var(--line);border-radius:10px;padding:14px;color:var(--ink);background:#fff}.writing-model{border:1px solid var(--line);padding:15px;border-radius:12px;margin:20px 0}.writing-model summary{cursor:pointer;font-weight:700}.rule p{line-height:1.75}

.teaching-intro{margin:24px 0}.teaching-core{max-width:72ch;line-height:1.75}.teaching-core h3{margin:24px 0 8px}.teaching-core ol{padding-left:24px}.teaching-core li{padding:5px 0 5px 5px}.teaching-more{border:1px solid var(--line);border-radius:12px;margin:18px 0;padding:16px 20px;line-height:1.75;overflow-wrap:anywhere}.teaching-more summary{cursor:pointer;font-weight:700;color:var(--blue);line-height:1.5}.teaching-more summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.teaching-more h4{margin:20px 0 8px}.teaching-recap{padding-left:22px}.teaching-recap li{margin:18px 0}.teaching-recap p{margin-top:5px}@media(max-width:500px){.teaching-more{padding:14px}.teaching-core ol{padding-left:20px}}