:root{--red:#df252d;--green:#078652;--green2:#0aa069;--ink:#102f27;--muted:#63776f;--line:#b7d0c6;--soft:#f4faf7;--white:#fff;--shadow:0 18px 55px rgba(8,70,49,.09);--amber:#9a6510}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f9fcfa;color:var(--ink);font-family:Arial,Helvetica,sans-serif}.container{width:min(1180px,calc(100% - 40px));margin:auto}.top{background:rgba(249,252,250,.96);border-bottom:1px solid #dce8e3;position:sticky;top:0;z-index:20}.top-inner{min-height:88px;display:flex;align-items:center;gap:28px}.brand{text-decoration:none;font-weight:900;font-size:27px;letter-spacing:-1.5px;white-space:nowrap;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.brand .turbo{color:var(--red)}.brand .uroki{color:var(--green)}.nav{display:flex;gap:22px;margin-left:auto;align-items:center;flex-wrap:wrap}.nav a{text-decoration:none;color:#536960;font-weight:700;font-size:14px}.nav a:hover,.nav a.active{color:var(--green)}
.hero{padding:64px 0 52px;border-bottom:1px solid #dce8e3;background:linear-gradient(120deg,#f9fcfa 5%,#eef8f3 60%,#e6f7ef 100%);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(12,111,75,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(12,111,75,.035) 1px,transparent 1px);background-size:32px 32px}.hero .container>*{position:relative}.crumbs{display:flex;gap:8px;align-items:center;color:#6f827a;font-size:13px;margin-bottom:22px}.crumbs a{color:var(--green);text-decoration:none}.eyebrow{display:inline-flex;border-left:3px solid var(--green);background:#e8f6ef;padding:8px 12px;font:700 13px ui-monospace,monospace;color:#477066;margin-bottom:20px}.hero h1{font-size:clamp(38px,5.6vw,68px);line-height:1;letter-spacing:-2.5px;max-width:900px;margin:0 0 18px}.hero h1 span{color:var(--green)}.hero p{font-size:19px;line-height:1.55;max-width:850px;color:#526861;margin:0}.stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.stat{background:#fff;border:1px solid var(--line);padding:11px 14px;font:700 13px ui-monospace,monospace;color:#48635a}
.section{padding:50px 0 78px}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:25px}.section-head h2{font-size:36px;letter-spacing:-1.2px;margin:0 0 8px}.section-head p{margin:0;color:var(--muted)}.choice-grid,.lessons{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.choice{background:#fff;border:1px solid var(--line);padding:28px;text-decoration:none;color:inherit;min-height:250px;display:flex;flex-direction:column;transition:.18s}.choice:hover,.lesson-card:hover{transform:translateY(-3px);border-color:var(--green);box-shadow:var(--shadow)}.choice .tag,.lesson-card .tag{font:800 11px ui-monospace,monospace;text-transform:uppercase;letter-spacing:.08em;color:var(--green)}.choice h3{font-size:29px;margin:18px 0 10px}.choice p{color:#667a72;line-height:1.55;margin:0 0 20px}.choice .go{margin-top:auto;color:var(--green);font-weight:800;display:flex;justify-content:space-between}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.search{flex:1;min-width:230px;border:1px solid var(--line);background:#fff;padding:13px 14px;font-size:15px}.filter{border:1px solid var(--line);background:#fff;padding:10px 13px;font-weight:700;color:#557067;cursor:pointer}.filter.active{background:var(--green);color:#fff;border-color:var(--green)}.progress{background:#fff;border:1px solid var(--line);padding:16px;margin-bottom:22px}.progress-row{display:flex;justify-content:space-between;gap:12px;font-weight:800}.track{height:8px;background:#e9f1ed;margin-top:10px;overflow:hidden}.bar{height:100%;width:0;background:var(--green);transition:.2s}.lessons{grid-template-columns:repeat(3,1fr)}.lesson-card{background:#fff;border:1px solid var(--line);padding:22px;text-decoration:none;color:inherit;min-height:190px;display:flex;flex-direction:column;transition:.18s;position:relative}.lesson-card.done{border-color:#77bda1;background:#f7fffb}.lesson-card.done:before{content:"✓";position:absolute;right:18px;top:17px;color:var(--green);font-weight:900}.lesson-card h3{font-size:21px;margin:18px 0 8px}.lesson-card p{color:#697d75;line-height:1.45;margin:0 0 16px}.lesson-card .foot{margin-top:auto;color:var(--green);font:800 12px ui-monospace,monospace;display:flex;justify-content:space-between}
.lesson-wrap{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:28px;padding-top:34px;padding-bottom:70px}.article .crumbs{margin-bottom:18px}.lesson-head{background:linear-gradient(135deg,#0c724f,#079060);color:#fff;padding:34px;margin-bottom:18px}.lesson-kicker{font:800 12px ui-monospace,monospace;text-transform:uppercase;letter-spacing:.08em;opacity:.86}.lesson-head h1{font-size:39px;letter-spacing:-1.5px;margin:15px 0 10px}.lesson-head p{margin:0;line-height:1.55;color:#e4f7ef}.block{background:#fff;border:1px solid var(--line);padding:26px;margin-bottom:18px}.block h2{font-size:25px;margin:0 0 16px}.block h3{font-size:18px;margin:22px 0 10px}.block p,.block li{line-height:1.62;color:#425b52}.formula,.example,.note{padding:14px 16px;margin:10px 0;border-left:3px solid var(--green);background:#eef8f3;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;line-height:1.5}.note{border-left-color:#e9a63b;background:#fff8eb}.steps{padding-left:22px}.steps li{margin:9px 0}.practice{border-top:4px solid var(--green)}label{display:block;font-weight:800;margin:14px 0 7px}.answer,textarea{width:100%;border:1px solid var(--line);background:#fbfefc;padding:13px 14px;font:15px Arial,Helvetica,sans-serif}textarea{min-height:190px;resize:vertical;line-height:1.5}.btn,.mark,.timer-btn,.rec-btn{border:0;background:var(--green);color:#fff;padding:12px 16px;font-weight:800;cursor:pointer;margin-top:10px}.btn:hover,.mark:hover,.timer-btn:hover,.rec-btn:hover{background:#066e44}.rec-btn.secondary,.timer-btn.secondary{background:#536960}.rec-btn.danger{background:var(--red)}.feedback{margin-top:12px;padding:11px 13px;display:none}.feedback.ok{display:block;background:#e9f8f0;color:#126640}.feedback.bad{display:block;background:#fff1f1;color:#8a3034}.checklist{list-style:none;padding:0}.checklist li{padding:8px 0 8px 28px;position:relative}.checklist li:before{content:"□";position:absolute;left:0;color:var(--green);font-weight:900}.wordcount{font:800 13px ui-monospace,monospace;color:#557067;margin-top:8px}.timerbox{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:12px 0}.timer{font:900 28px ui-monospace,monospace;color:var(--green);min-width:92px}.speech-text{padding:19px;background:#f7faf8;border:1px solid #dce8e3;line-height:1.72;font-size:17px}.prompt-card{border:1px solid var(--line);padding:17px;margin:12px 0;background:#fbfefc}.prompt-card h3{margin:0 0 8px}.audio-play{width:100%;margin-top:12px}.side{position:relative}.sidebox{position:sticky;top:108px;background:#fff;border:1px solid var(--line);padding:20px;margin-bottom:15px}.sidebox+ .sidebox{position:static}.sidebox h3{margin:0 0 12px}.sidebox a{display:block;color:#456a5d;text-decoration:none;padding:7px 0}.mark{width:100%;margin:0}.mark.done{background:#dff4e9;color:#11653f}.navlessons{display:flex;justify-content:space-between;gap:12px;margin-top:18px}.navlessons a{background:#fff;border:1px solid var(--line);padding:12px 15px;color:var(--green);font-weight:800;text-decoration:none}.footer{border-top:1px solid #dce8e3;padding:30px 0 44px;color:#667871}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px}
@media(max-width:900px){.lessons{grid-template-columns:repeat(2,1fr)}.lesson-wrap{grid-template-columns:1fr}.sidebox{position:static}.top-inner{min-height:72px;flex-direction:column;align-items:flex-start;padding:17px 0;gap:12px}.nav{margin-left:0}.choice-grid{grid-template-columns:1fr}}@media(max-width:580px){.container{width:min(100% - 24px,1180px)}.lessons{grid-template-columns:1fr}.hero h1{font-size:41px}.lesson-head{padding:25px}.lesson-head h1{font-size:31px}.section-head h2{font-size:30px}.nav{gap:12px}.nav a{font-size:12px}.footer-inner{align-items:flex-start;flex-direction:column}}