:root{--ink:#1f2a44;--muted:#5b6478;--bg:#f6f4ef;--card:#fff;--a:#2563eb;--see:#0ea5e9;--feel:#ec4899;--think:#8b5cf6;--ask:#f59e0b;--line:#e5e1d8}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Assistant","Rubik","Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:18px}
a{color:var(--a)}
.wrap{max-width:980px;margin:0 auto;padding:0 16px}
.logo{position:absolute;top:10px;left:12px;width:58px;height:58px;border-radius:14px;background:#fff;box-shadow:0 2px 8px #0002;padding:4px;z-index:5}
header.hero{position:relative;background:linear-gradient(135deg,#1e3a8a,#7c3aed 60%,#db2777);color:#fff;padding:34px 0 30px}
header.hero h1{font-size:clamp(26px,5.5vw,42px);line-height:1.2;margin:8px 0 10px;padding-left:64px}
header.hero p{margin:0;font-size:19px;opacity:.95;max-width:720px}
.kicker{display:inline-block;background:#ffffff26;border:1px solid #ffffff55;border-radius:999px;padding:3px 14px;font-size:15px}
.back{display:inline-block;margin-bottom:6px;color:#fff;text-decoration:none;font-weight:700;background:#ffffff22;border-radius:12px;padding:8px 14px;min-height:44px}
main section{background:var(--card);border-radius:20px;box-shadow:0 2px 10px #0000000d;margin:18px 0;padding:20px 18px}
h2{font-size:clamp(22px,4.2vw,30px);margin:.1em 0 .5em;line-height:1.25}
h3{font-size:20px;margin:1em 0 .4em}
.tag{display:inline-block;font-size:14px;font-weight:700;color:#fff;border-radius:999px;padding:2px 12px;margin-bottom:6px}
.stick{position:sticky;top:0;z-index:4;background:var(--bg);padding:8px 0 6px}
.player{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:16px;overflow:hidden;box-shadow:0 6px 18px #0003}
.player iframe,.player>div{position:absolute;inset:0;width:100%;height:100%;border:0}
.credit{font-size:15px;color:var(--muted);margin:6px 2px 0}
.nowbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:15px;color:var(--muted);margin-top:4px}
button,.btn{font:inherit}
.ts{display:inline-flex;align-items:center;gap:4px;direction:ltr;unicode-bidi:isolate;background:#1f2a44;color:#fff;border:0;border-radius:12px;padding:6px 12px;min-height:44px;min-width:64px;justify-content:center;font-weight:700;font-size:17px;cursor:pointer;margin:2px 4px;vertical-align:middle}
.ts:hover,.ts:focus-visible{background:var(--a);outline:3px solid #93c5fd;outline-offset:2px}
.ts.on{background:#16a34a}
.ts.small{min-height:38px;font-size:15px;padding:4px 10px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:18px 0}
.card{display:flex;flex-direction:column;background:#fff;border-radius:20px;box-shadow:0 3px 12px #0000001a;text-decoration:none;color:inherit;overflow:hidden;border:2px solid transparent;min-height:260px}
.card:hover,.card:focus-visible{border-color:var(--a);transform:translateY(-2px)}
.card .top{font-size:54px;text-align:center;padding:18px 0 6px;background:linear-gradient(135deg,#e0e7ff,#fce7f3)}
.card .body{padding:14px 16px 18px;flex:1;display:flex;flex-direction:column}
.card h3{margin:0 0 6px;font-size:22px}
.card p{margin:0 0 10px;color:var(--muted);font-size:16px}
.card .go{margin-top:auto;display:block;text-align:center;background:var(--a);color:#fff;border-radius:14px;padding:12px;font-weight:800;font-size:18px}
.meta{font-size:14px;color:var(--muted)}
.stages{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.stage{border-radius:16px;padding:14px;color:#fff}
.stage b{font-size:22px;display:block}
.s-see{background:var(--see)}.s-feel{background:var(--feel)}.s-think{background:var(--think)}.s-ask{background:#d97706}
.view{border-right:8px solid var(--c);}
.view .tag{background:var(--c)}
.view ol{padding-inline-start:22px;margin:.3em 0}
.view li{margin:.55em 0}
.how{background:#f8fafc;border-radius:12px;padding:8px 12px;font-size:16px;color:var(--muted);margin:6px 0 4px}
.lvl{display:block;width:fit-content;max-width:100%;font-size:14px;font-weight:700;border-radius:8px;padding:2px 10px;margin-top:4px;background:#eef2ff;color:#3730a3}
.warn{background:#fff7ed;border:2px solid #fdba74;border-radius:16px;padding:12px 16px;margin:12px 0;font-size:16.5px}
.note{background:#eff6ff;border:2px solid #bfdbfe;border-radius:16px;padding:12px 16px;margin:12px 0;font-size:16.5px}
.vocab{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:10px}
.w{border:1px solid var(--line);border-radius:14px;padding:10px 12px;background:#fffdf8}
.w .he{font-size:24px;font-weight:800;line-height:1.35;font-family:"Frank Ruhl Libre","David","Times New Roman",serif}
.w .gl{font-size:15px;color:var(--muted);direction:ltr;text-align:left}
.w .ex{font-size:15.5px;margin-top:4px}
table{width:100%;border-collapse:collapse;font-size:16.5px}
th,td{border:1px solid var(--line);padding:8px;vertical-align:top;text-align:right}
th{background:#f1f5f9}
.tablewrap{overflow-x:auto}
.levels{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px}
.levels>div{border-radius:16px;padding:12px 14px;border:2px solid var(--line)}
.levels h3{margin-top:0}
.l1{background:#f0fdf4;border-color:#bbf7d0!important}.l2{background:#eff6ff;border-color:#bfdbfe!important}.l3{background:#faf5ff;border-color:#e9d5ff!important}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0}
.toc a{background:#ffffff26;color:#fff;text-decoration:none;border-radius:12px;padding:8px 12px;font-size:15px;min-height:44px;display:inline-flex;align-items:center}
.printbtn{background:#0f766e;color:#fff;border:0;border-radius:14px;padding:12px 18px;font-weight:800;font-size:17px;min-height:48px;cursor:pointer}
.sheet{border:2px dashed #94a3b8;border-radius:14px;padding:14px;background:#fff}
.sheet .lines{border-bottom:1px solid #94a3b8;height:30px}
footer{text-align:center;padding:26px 12px 40px;color:var(--muted);font-size:16px}
footer .by{font-size:19px;font-weight:800;color:var(--ink)}
footer .insp{font-size:13.5px;margin-top:4px}
.big{font-size:20px}
body.printmode header.hero,body.printmode main>section:not(.printable),body.printmode .stick,body.printmode footer .insp{display:none}
body.printmode .printable{box-shadow:none}
@media print{
 body{background:#fff;font-size:13pt}
 header.hero,.stick,main>section:not(.printable),.printbtn,.logo,.noprint{display:none!important}
 main section.printable{box-shadow:none;padding:0;margin:0}
 .sheet{border:0}
 footer{padding:8px}
 footer .insp{display:none}
}
@media (max-width:520px){body{font-size:17px}main section{padding:16px 13px;border-radius:16px}.logo{width:46px;height:46px}header.hero h1{padding-left:50px}}
.stick .player{max-width:600px;margin:0 auto}.stick .credit,.stick .nowbar{max-width:600px;margin-left:auto;margin-right:auto}@media (max-height:560px){.stick{position:static}}
.warn .ts,.note .ts{min-height:36px;min-width:52px;font-size:15px;padding:2px 9px}
main,section,.view li,.w{overflow-wrap:anywhere}