@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');
:root{--ink:#171719;--muted:#747474;--paper:#f5f5f7;--card:#fff;--line:#e8e8ea;--yellow:#f5c518;--red:#b42318;--green:#147a45}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit}.wrap{max-width:1120px;margin:auto;padding:28px 22px 64px}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:54px}.brand{font-size:14px;font-weight:900;letter-spacing:.09em}.navright{display:flex;align-items:center;gap:18px}.nav a{font-size:14px;font-weight:750;text-decoration:none}.button{border:0;background:var(--ink);color:#fff;border-radius:12px;padding:14px 18px;font:800 14px Inter;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button.yellow{background:var(--yellow);color:var(--ink)}.button.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}.hero{max-width:720px;margin:0 auto 42px;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:999px;background:var(--yellow);color:var(--ink);font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.hero h1{font-size:clamp(42px,7vw,76px);line-height:.94;letter-spacing:-.07em;margin:18px 0 20px}.hero h1 em{font-style:normal;color:var(--yellow)}.hero p{max-width:570px;margin:0 auto;color:#5e5e63;line-height:1.6;font-size:17px}.lesson{max-width:900px;margin:0 auto}.backlink{display:inline-block;font-size:13px;font-weight:800;text-decoration:none;margin-bottom:28px}.lesson .eyebrow{margin-bottom:10px}.lesson-player{margin-top:28px;background:#080808;border-radius:20px;overflow:hidden;box-shadow:0 16px 48px #1115;aspect-ratio:16/9}.lesson-player iframe{display:block;width:100%;height:100%;border:0}.lesson-actions{display:flex;justify-content:center;margin:24px 0}.lesson-actions .button:disabled{cursor:not-allowed;opacity:.45}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:0 8px 25px #1111}.card h2{margin:0 0 8px;font-size:24px;letter-spacing:-.045em}.card p{color:var(--muted);line-height:1.55;font-size:14px}.field{display:grid;gap:7px;margin:15px 0}.field label{font-size:13px;font-weight:750}.field input{width:100%;border:1px solid #d8d8dc;border-radius:10px;padding:13px;background:white;font:15px Inter}.field input:focus{outline:2px solid #f5c518;border-color:#f5c518}.split{display:grid;grid-template-columns:1fr 1fr;gap:12px}.error{background:#fff0ef;color:#9f2119;padding:11px 13px;border-radius:10px;font-size:13px;margin:12px 0}.subtle{font-size:13px;color:var(--muted);margin-top:18px}.subtle button{border:0;background:none;text-decoration:underline;font:inherit;cursor:pointer}.title{font-size:clamp(32px,5vw,50px);letter-spacing:-.06em;line-height:1;margin:9px 0 10px}.lede{color:var(--muted);line-height:1.55;margin:0}.grid{display:grid;gap:16px}.stats{grid-template-columns:repeat(4,1fr);margin:36px 0}.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.stat .v{font-weight:900;font-size:32px;letter-spacing:-.06em}.stat .k{font-size:12px;color:var(--muted);font-weight:750;margin-top:6px}.dashboard-grid{grid-template-columns:1.35fr .85fr;margin-top:20px}.section-title{font-size:19px;letter-spacing:-.04em;margin:0 0 12px}.skill{border-top:1px solid var(--line);padding:14px 0;display:flex;justify-content:space-between;gap:15px}.skill:first-of-type{border-top:0}.skill b{font-size:14px}.skill p{margin:4px 0 0;font-size:12px;line-height:1.45;color:var(--muted)}.pill{align-self:start;border-radius:999px;background:#f0f0f2;font-size:12px;font-weight:850;padding:7px 9px;white-space:nowrap}.pill.strong{background:#fff2bc}.quiz{display:flex;justify-content:space-between;gap:16px;padding:18px 0;border-top:1px solid var(--line)}.quiz:first-of-type{border:0}.quiz h3{margin:0 0 5px;font-size:15px}.quiz p{margin:0;color:var(--muted);font-size:12px}.question{max-width:760px;margin:0 auto}.progress{color:var(--muted);font-size:13px;font-weight:750}.option{width:100%;text-align:left;border:1px solid var(--line);background:#fff;padding:16px;border-radius:13px;margin:10px 0;font:600 15px Inter;cursor:pointer}.option:hover,.option.active{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)}.option.active{background:#fffbeb}.quiz-actions{display:flex;justify-content:space-between;gap:12px;margin-top:22px}.result{max-width:800px;margin:auto}.review{border-top:1px solid var(--line);padding:20px 0}.review .correct{color:var(--green);font-weight:850}.review .wrong{color:var(--red);font-weight:850}.review p{font-size:14px;line-height:1.55;color:#525257}.admin-word{color:var(--yellow);margin-left:6px}.admin-hero{margin:0 0 24px}.admin-hero .lede{max-width:600px}.admin-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:16px;margin:18px 0}.section-kicker{font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:#747474;margin-bottom:10px}.leader,.report{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding:15px 0;font-size:13px}.leader span,.report p,.empty{margin:0;color:var(--muted);font-size:12px}.reports{margin-top:16px}.report>div:first-child{flex:1}.report>div:not(:first-child){min-width:104px;text-align:right}.admin-stats{margin-top:26px}@media(max-width:700px){.admin-grid{grid-template-columns:1fr}.admin-word{display:none}.report{flex-wrap:wrap}.report>div:not(:first-child){text-align:left;min-width:0}}@media(max-width:700px){.wrap{padding:20px 16px 48px}.nav{margin-bottom:36px}.navright{gap:10px}.navright a{display:none}.split,.stats,.dashboard-grid{grid-template-columns:1fr}.stats{gap:10px}.stat{padding:16px}.hero h1{font-size:48px}.card{padding:20px}}