@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;600;700;800&display=swap');
:root{--paper:#f6f5f0;--ink:#263d33;--muted:#737c74;--line:#dfe3da;--accent:#d9f086;--coral:#c26043;--soft:#eaf0e5}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.6 'DM Sans',Arial,sans-serif}button,select,input{font:inherit}button{cursor:pointer;border:0}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid var(--coral);outline-offset:4px}a{color:inherit}.layout{display:grid;grid-template-columns:236px 1fr;min-height:100vh}.sidebar{background:#fff;border-right:1px solid var(--line);padding:35px 25px;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;width:236px}.brand{display:flex;align-items:center;gap:10px;font-family:Manrope,Arial,sans-serif;font-size:18px;font-weight:800;line-height:1.25;letter-spacing:-.6px}.brand small{display:block;font-size:9px;letter-spacing:2px;font-weight:500;margin-top:7px}.brandmark{display:flex;align-items:center;justify-content:center;width:40px;height:44px;gap:3px;background:var(--ink);border-radius:13px}.brandmark i{width:3px;background:var(--accent);border-radius:9px;height:15px}.brandmark i:nth-child(2){height:25px}.brandmark i:nth-child(4){height:21px}.nav{display:grid;gap:7px;margin-top:52px}.nav button{background:none;text-align:left;padding:13px 14px;border-radius:10px;color:var(--muted);display:flex;gap:12px;align-items:center}.nav button.active{background:var(--soft);color:var(--ink);font-weight:700}.nav svg{width:19px;height:19px}.sidebottom{margin-top:auto;padding-top:30px}.small{font-size:12px;color:var(--muted)}.install-side{background:var(--paper);padding:18px;border-radius:14px;margin-bottom:20px}.install-side strong{font-size:13px}.install-side button{background:transparent;padding:8px 0 0;font-size:12px;font-weight:700;color:var(--ink)}main{grid-column:2;padding:35px 5%;max-width:1450px;width:100%;margin:auto}.topline{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:23px;margin-bottom:38px;font-size:13px}.statuspill{display:flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);border-radius:30px;padding:5px 12px;font-size:12px}.dot{width:6px;height:6px;background:#6f9b57;border-radius:50%}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;text-transform:uppercase;color:var(--muted)}h1,h2,h3,p{margin-top:0}h1{font:800 clamp(31px,3vw,45px)/1.23 Manrope,Arial,sans-serif;letter-spacing:-1.6px;margin-bottom:14px}h2{font-size:21px;letter-spacing:-.6px}h3{font-size:18px;line-height:1.4}.hero{display:grid;grid-template-columns:1fr 245px;gap:30px;align-items:center;margin:35px 0 34px}.hero p{color:var(--muted);font-size:14px;margin-bottom:0}.hero em{font-style:normal;color:var(--coral)}.art{height:146px;display:flex;align-items:center;justify-content:center;position:relative}.orbit{border:1px solid #ccd4c5;border-radius:50%;width:200px;height:120px;position:absolute;transform:rotate(-27deg)}.orbit.two{transform:rotate(27deg)}.wave-disc{width:100px;height:100px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;gap:5px;z-index:1}.wave-disc i{width:5px;background:var(--ink);border-radius:10px}.orb{position:absolute;background:var(--coral);width:14px;height:14px;border-radius:50%;top:13px;right:28px}.sectiontop{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:19px}.sectiontop h2{margin:0}.textbtn{background:none;color:var(--muted);padding:6px;font-size:13px}.topicbar{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:23px}.chip{border:1px solid var(--line);border-radius:30px;background:transparent;color:var(--muted);padding:7px 14px;font-size:12px}.chip.active{background:var(--ink);border-color:var(--ink);color:#fff}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:23px;display:flex;flex-direction:column;min-height:292px;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-3px);box-shadow:0 10px 25px #263d3310}.cardtop{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.topicicon{width:43px;height:43px;display:flex;justify-content:center;align-items:center;border-radius:13px;background:#edf0e9;color:var(--ink);font-size:21px}.topicicon.research{background:#ece9f4;color:#756093}.topicicon.daily{background:#f9eee5;color:#b9744a}.tag{font-size:10px;font-weight:700;letter-spacing:1.2px;color:var(--muted)}.card h3{margin-bottom:10px;font-family:Manrope,Arial,sans-serif;font-weight:800;letter-spacing:-.3px}.card p{font-size:12px;color:var(--muted);margin-bottom:24px}.cardfoot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted)}.circlebtn{border-radius:50%;width:38px;height:38px;background:var(--ink);color:white;font-size:18px}.card.done{border-color:#a7ba8b}.bottomgrid{display:grid;grid-template-columns:1.5fr 1fr;gap:20px;margin-top:27px}.progresspanel,.tip{border:1px solid var(--line);border-radius:17px;padding:23px}.progresspanel{background:#eef1e7}.progresshead{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.progresshead strong{font-size:14px}.week{display:flex;justify-content:space-between;gap:8px}.day{display:grid;text-align:center;gap:8px;font-size:10px;color:var(--muted)}.day b{width:30px;height:30px;display:grid;place-items:center;border:1px solid #d3d9c9;border-radius:50%;font-size:12px;font-weight:500}.day.today b{border-color:var(--ink);background:#fff;color:var(--ink)}.day.complete b{background:var(--ink);color:var(--accent)}.tip{font-size:13px}.tip p{color:var(--muted);font-size:12px;margin:8px 0 0}.tiplabel{font-size:10px;letter-spacing:1.4px;color:var(--coral);margin-bottom:8px}.footer{margin-top:32px;display:flex;justify-content:space-between;font-size:11px;color:var(--muted);gap:15px}.primary,.secondary{border-radius:9px;padding:12px 20px;font-size:13px;font-weight:700}.primary{background:var(--ink);color:#fff}.secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}.lesson{max-width:850px;margin:auto}.back{background:none;color:var(--muted);padding:0;margin-bottom:25px;font-size:13px}.lessonhead h1{font-size:32px;margin:10px 0 22px}.player{background:var(--ink);color:#fff;border-radius:19px;padding:30px;margin-bottom:27px}.player-top{display:flex;justify-content:space-between;color:#c2cfc4;font-size:11px;letter-spacing:1.3px}.wave{height:86px;display:flex;align-items:center;justify-content:center;gap:5px;margin:18px 0}.wave i{width:4px;background:var(--accent);border-radius:8px;opacity:.7}.wave.playing i{animation:pulse .8s ease-in-out infinite alternate;animation-delay:calc(var(--i)*30ms)}@keyframes pulse{to{transform:scaleY(.3);opacity:.4}}.controls{display:flex;justify-content:center;align-items:center;gap:16px}.playbutton{background:var(--accent);color:var(--ink);border-radius:50%;height:54px;width:54px;font-size:20px}.player select{background:#ffffff12;color:#fff;border:1px solid #ffffff35;border-radius:8px;padding:5px;font-size:12px}.player option{color:var(--ink);background:#fff}.player small{display:block;text-align:center;color:#c2cfc4;font-size:11px;margin-top:16px}.question{background:#fff;border:1px solid var(--line);padding:28px;border-radius:17px}.question h2{font-size:19px;margin:6px 0 20px}.options{display:grid;gap:10px}.option{display:flex;align-items:center;gap:12px;text-align:left;border:1px solid var(--line);border-radius:10px;background:#fff;padding:14px;color:var(--ink);font-size:14px}.option b{display:grid;place-items:center;flex-shrink:0;border:1px solid var(--line);width:25px;height:25px;border-radius:7px;font-size:11px}.option.selected{border-color:var(--ink);background:#f0f3e9}.option.correct{border-color:#5c8451;background:#edf5e8}.option.wrong{border-color:#c67a65;background:#fff0eb}.actions{display:flex;gap:10px;justify-content:flex-end;margin-top:22px}.feedback{margin-top:20px;padding:17px;border-radius:12px;background:var(--soft);font-size:13px}.feedback p{margin:6px 0 0}.explanation{margin-top:25px}.explanation h2{margin:25px 0 13px}.sentence{background:#fff;padding:21px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px}.sentence-top{display:flex;align-items:flex-start;gap:12px}.sentence p{font-size:17px;line-height:1.8;margin-bottom:8px}.sentence .ko{font-size:13px;color:var(--muted);padding-left:40px}.miniplay{width:29px;height:29px;flex-shrink:0;background:var(--soft);border-radius:50%;color:var(--ink);margin-top:5px}.chunk{display:block;width:100%;text-align:left;padding:12px 17px;background:#fff;border-bottom:1px solid var(--line);color:var(--ink)}.chunk span{color:var(--coral);font-size:11px;margin-right:12px}.note{padding:18px 21px;background:var(--soft);border-radius:12px;margin-top:16px;font-size:13px}.reflect{display:flex;gap:8px;flex-wrap:wrap;margin-top:13px}.panel{border:1px solid var(--line);border-radius:16px;background:#fff;padding:25px;margin-bottom:20px}.row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:16px 0;border-bottom:1px solid var(--line)}.row:last-child{border:0}.row select{max-width:55%;padding:7px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink)}.empty{text-align:center;padding:55px 20px;color:var(--muted)}.librarygrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.listitem{display:flex;align-items:center;gap:15px;padding:18px;text-align:left;background:#fff;border:1px solid var(--line);border-radius:12px;color:var(--ink)}.listitem strong{font-size:14px}.listitem small{display:block;color:var(--muted);font-size:11px}.listitem .arrow{margin-left:auto}.banner{background:var(--ink);color:#fff;border-radius:15px;padding:22px;margin-bottom:25px}.banner p{font-size:13px;color:#d1dccf;margin:8px 0}.summaryscore{font:800 60px Manrope,sans-serif}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 20px;border-radius:10px;font-size:13px;display:none;z-index:20}dialog{max-width:470px;width:90%;border:1px solid var(--line);border-radius:18px;padding:28px;background:var(--paper);color:var(--ink);line-height:1.9}dialog::backdrop{background:#14241988}dialog p{font-size:14px}.notice{font-size:12px;color:var(--muted);padding-top:12px}.error{color:#ad4129}@media(max-width:1050px){.layout{grid-template-columns:190px 1fr}.sidebar{width:190px;padding:28px 17px}.brand{font-size:16px}main{padding:27px 4%}.cards{gap:10px}.card{padding:18px}.hero{grid-template-columns:1fr 170px}.orbit{width:160px}.hero h1{font-size:34px}}@media(max-width:760px){.layout{display:block}.sidebar{position:sticky;top:0;width:100%;height:auto;z-index:10;padding:13px 20px;flex-direction:row;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);border-right:0}.brand{font-size:13px}.brand small{font-size:7px;margin-top:3px}.brandmark{width:31px;height:34px;border-radius:10px}.brandmark i{width:2px}.nav{display:flex;margin:0;gap:2px}.nav button{font-size:0;padding:11px;gap:0}.nav svg{width:19px;height:19px}.sidebottom{display:none}main{padding:23px 20px}.topline{margin-bottom:25px;padding-bottom:17px}.hero{grid-template-columns:1fr;gap:0;margin-top:25px}.hero h1{font-size:34px}.art{display:none}.cards{grid-template-columns:1fr}.card{min-height:190px;padding:21px}.cardtop{margin-bottom:16px}.card h3{margin-bottom:7px}.card p{margin-bottom:15px}.cardfoot{margin-top:0}.bottomgrid{grid-template-columns:1fr}.topicbar{gap:6px}.chip{padding:7px 11px}.librarygrid{grid-template-columns:1fr}.lessonhead h1{font-size:27px}.player{padding:23px}.question{padding:20px}.footer{flex-direction:column;gap:3px}.sentence{padding:16px}.sentence p{font-size:16px}.row{align-items:flex-start}.statuspill{font-size:10px}.topline>span{font-size:11px}}
.option:disabled{opacity:1;cursor:default}