@font-face{font-family:Nunito;src:url('assets/fonts/Nunito-Variable.ttf') format('truetype');font-display:swap}*{box-sizing:border-box}body{margin:0;font-family:Nunito,Arial,sans-serif;background:#f7f3e9;color:#233b45}header{padding:20px 32px;background:#fffdf7;border-bottom:1px solid #e1dfd0;display:flex;justify-content:space-between;gap:15px}header a{color:#286452;font-weight:800}header span{color:#66786b}main{max-width:1200px;margin:auto;padding:30px}.intro{display:flex;align-items:center;gap:30px;margin:8px 0 30px}.intro img{border-radius:24px}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:13px;font-weight:900;color:#337461;margin:0 0 8px}h1{font-size:clamp(26px,3vw,40px);line-height:1.2;margin:0}h1 span{color:#28705d}.intro p:last-child{font-size:18px;margin-bottom:0}#blocks{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}button{font:inherit;cursor:pointer;min-height:86px;background:#fffef9;border:2px solid #d5ded2;border-radius:15px;padding:14px;text-align:left;color:inherit;touch-action:manipulation}button strong{display:block;font-size:23px}button span{display:block;font-size:14px;margin-top:5px}button:hover{border-color:#28705d}button[aria-pressed=true]{background:#246a58;color:white;border-color:#246a58}button:focus-visible,a:focus-visible{outline:4px solid #e4a831;outline-offset:4px}.lessons{background:#fffdf8;border:1px solid #e0dece;border-radius:20px;margin-top:26px;padding:24px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.section-heading h2{margin:0;font-size:28px}.section-heading span{color:#64776b}.lesson-card{display:flex;align-items:center;gap:22px;padding:22px;background:white;border:2px solid #c8ddd1;border-radius:16px;color:inherit;text-decoration:none}.lesson-card:hover{border-color:#28705d;background:#f4faf5}.lesson-number{font-weight:900;font-size:22px;background:#f9d788;color:#614712;padding:17px 14px;border-radius:12px;white-space:nowrap}.lesson-card h3{font-size:23px;margin:0 0 8px}.lesson-card p{margin:0;font-size:16px}.lesson-card ul{list-style:none;display:flex;gap:8px;flex-wrap:wrap;padding:0;margin:14px 0 0}.lesson-card li{background:#eaf3ed;border-radius:20px;padding:5px 12px;font-size:13px;font-weight:700}.open-lesson{margin-left:auto;color:#246a58;font-weight:900;white-space:nowrap}.footer-note{color:#63766b;text-align:center;font-size:14px}#empty{padding:25px 0;color:#63766b}#lesson-list{display:grid;gap:14px}[hidden]{display:none!important}@media(max-width:800px){.lesson-card{flex-wrap:wrap}.open-lesson{margin-left:0}.intro img{width:140px;height:auto}.intro{gap:18px}main{padding:20px}header{padding:16px 20px}}@media(max-width:540px){#blocks{grid-template-columns:repeat(2,1fr)}.intro img{display:none}.lessons{padding:16px}.lesson-card{padding:16px}.lesson-card h3{font-size:20px}header span{font-size:13px}}