/* Site redesign W1 (3 Nov 2026): learn hub (/learn) + subject worlds (/learn/<subject>).
   Built only from the Sky Isles tokens (.sk in sky-isles.css) and the W1 spec (site-redesign-audit/design-system.md).
   Every rule is scoped to .skl, so the home page, /exams and the rest of the site are untouched.
   Loaded by components/sky/sky-learn.tsx (<link precedence>), the same way the shell loads sky-nav.css. */
.skl{--r-card:14px;--r-panel:20px;--sh-card:0 8px 18px -16px rgba(16,34,70,.5);--sh-lift:0 12px 22px -16px rgba(16,34,70,.6);--soft:#F6F8FB;--track:#E4EAF1;
 line-break:strict;word-break:normal;overflow-wrap:break-word}
:where(.skl) a{color:inherit;text-decoration:none}
.skl svg.sk-i{width:22px;height:22px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.skl :focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:12px}
.skl h1,.skl h2,.skl h3{font-family:var(--head);font-weight:600;line-height:1.3;color:inherit}

/* ---------- subject tints (one colour per subject, everywhere) + status tints ---------- */
.skl .s-math{background:#E0ECFF;color:#2563EB}.skl .s-sci{background:#EDE9FE;color:#6D28D9}.skl .s-thai{background:#FFF1D6;color:#B45309}
.skl .s-eng{background:#DCFCE7;color:#15803D}.skl .s-bio{background:#E0F2FE;color:#0369A1}.skl .s-ok{background:var(--teal-soft);color:var(--teal-ink)}
.skl .s-all{background:#EEF1F5;color:#334155}.skl .s-exam{background:#FDECEC;color:#C0362C}

/* ---------- skeleton (same shape as the final content, no jump) ---------- */
.skl .skl-skel{display:block;height:14px;margin:6px 0;border-radius:8px;background:linear-gradient(90deg,#E9EEF4 25%,#F5F8FB 45%,#E9EEF4 65%);background-size:300% 100%;animation:skl-shine 1.4s ease-in-out infinite}
@keyframes skl-shine{0%{background-position:100% 0}100%{background-position:0 0}}
@media (prefers-reduced-motion:reduce){.skl .skl-skel{animation:none}.skl *{transition:none!important}}

/* ---------- hub header: plate + glass title (pattern 1, 340px, no avatar stage) ---------- */
.skl .skl-hero{position:relative;height:340px;overflow:hidden;background:#0E2A55 var(--world) center 60%/cover no-repeat}
.skl .skl-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,22,48,.5),rgba(8,22,48,0) 46%),linear-gradient(180deg,rgba(8,22,48,.15),rgba(8,22,48,0) 30%,rgba(8,22,48,.22))}
.skl .skl-htitle{position:absolute;z-index:3;left:36px;bottom:64px;max-width:520px;padding:20px 26px 22px;border-radius:var(--r-panel);background:rgba(255,255,255,.8);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 16px 34px -20px rgba(16,34,70,.55);color:var(--ink)}
.skl .skl-htitle h1{font-size:50px;line-height:1.2}
.skl .skl-htitle strong{display:block;margin:2px 0 4px;font:600 24px/1.35 var(--head);color:#3C5A86}
.skl .skl-htitle p{color:var(--muted);font-size:16px;line-height:1.55;text-wrap:pretty}

/* ---------- resume / next-step card (the ONE "ทำต่อจากเดิม") ---------- */
.skl .skl-resume{position:relative;z-index:6;display:grid;grid-template-columns:132px minmax(0,1fr) auto auto;align-items:center;gap:22px;width:min(1416px,calc(100% - 64px));min-height:120px;margin:-48px auto 0;padding:14px 22px 14px 14px;border-radius:20px;background:#fff;box-shadow:0 16px 34px -20px rgba(16,34,70,.6);color:var(--ink);transition:box-shadow .15s,transform .15s}
.skl a.skl-resume:hover{transform:translateY(-1px);box-shadow:0 20px 36px -20px rgba(16,34,70,.7)}
.skl .skl-resume .skl-thumb{display:block;width:132px;height:92px;object-fit:cover;border-radius:14px;margin:0}
.skl .skl-resume b{display:block;margin:6px 0 2px;font:600 21px/1.35 var(--head)}
.skl .skl-resume small{display:block;color:var(--muted);font-size:14.5px;line-height:1.5}
.skl .skl-resume .skl-pbar{margin-top:10px;max-width:420px}
.skl .skl-resume--wait{grid-template-columns:132px minmax(0,1fr)}
.skl .skl-resume--wait .skl-thumb{height:92px}
.skl .skl-cta.sk-cta{display:inline-flex;height:52px;padding:0 26px;font-size:19px;white-space:nowrap;margin:0}
.skl .skl-rstats{display:flex;gap:10px}
.skl .skl-rstat{display:flex;align-items:center;gap:10px;padding:8px 14px 8px 10px;border-radius:14px;background:var(--soft);font:600 17px/1.2 var(--head)}
.skl .skl-rstat small{display:block;margin-top:2px;font:400 12.5px/1.2 var(--body);color:var(--muted)}
.skl .skl-rstat .skl-em{width:34px;height:34px;border-radius:10px}.skl .skl-rstat .skl-em svg.sk-i{width:19px;height:19px}
.skl .skl-steps{list-style:none;margin:0;padding:0}
.skl .skl-steps>li{display:grid}
.skl .skl-tile--wait{box-shadow:none}

/* ---------- layout + section headings ---------- */
.skl .skl-wrap{max-width:1480px;margin:0 auto;padding:10px 32px 56px;color:var(--ink)}
.skl .skl-sec{display:flex;align-items:center;gap:10px;min-height:40px;margin:28px 2px 12px;scroll-margin-top:84px}
.skl .skl-sec>svg.sk-i{width:26px;height:26px;color:var(--teal-ink)}
.skl .skl-sec h2{font-size:24px}
.skl .skl-more{margin-left:auto;display:flex;align-items:center;gap:4px;min-height:44px;padding:0 6px;font:600 16px/1.3 var(--head);color:var(--teal-ink)}
.skl .skl-more svg.sk-i{width:18px;height:18px}
.skl .sk-alert,.skl .sk-note{margin:12px 2px 0}

/* ---------- world cards (5 subjects, real progress when the site has it) ---------- */
.skl .skl-worlds{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.skl .skl-world{position:relative;display:block;height:184px;border-radius:var(--r-card);overflow:hidden;color:#fff;background:#1B355E;box-shadow:0 12px 26px -16px rgba(16,34,70,.6);transition:transform .15s,box-shadow .15s}
.skl .skl-world:hover{transform:translateY(-2px);box-shadow:0 16px 30px -16px rgba(16,34,70,.7)}
.skl .skl-world img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.skl .skl-world::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,26,52,0) 38%,rgba(10,26,52,.92) 84%)}
.skl .skl-wbd{position:absolute;z-index:1;left:16px;right:12px;bottom:12px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:2px 10px}
.skl .skl-wbd b{grid-column:1;font:600 22px/1.3 var(--head);text-shadow:0 2px 6px rgba(0,0,0,.4)}
.skl .skl-wbd small{grid-column:1;font-size:13.5px;line-height:1.45;opacity:.92;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.skl .skl-go{grid-column:2;grid-row:1/-1;align-self:end;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:rgba(10,26,52,.55);border:2px solid rgba(255,255,255,.85)}
.skl .skl-go svg.sk-i{width:18px;height:18px;stroke-width:2.6}
.skl .skl-meta{grid-column:1;display:flex;align-items:center;gap:8px;margin-top:6px;font:600 12.5px/1 var(--body)}
.skl .skl-meta .skl-pbar{flex:1;height:6px;background:rgba(255,255,255,.28)}
.skl .skl-pill{position:absolute;z-index:2;left:12px;top:12px;height:24px;padding:0 10px;border-radius:999px;background:rgba(255,255,255,.92);color:var(--ink);font:600 12px/24px var(--head)}
.skl .skl-pbar{display:block;height:8px;border-radius:8px;background:var(--track);overflow:hidden}
.skl .skl-pbar i{display:block;height:100%;border-radius:8px;background:linear-gradient(90deg,#13B5A5,#44E0CF)}

/* ---------- link tile (one card style; tinted emblem, title, one line, ONE status) ---------- */
.skl .skl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.skl .skl-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.skl .skl-tile{display:grid;grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:14px;min-height:72px;padding:12px 16px;border-radius:var(--r-card);background:#fff;border:1px solid var(--hair);box-shadow:var(--sh-card);color:var(--ink);transition:transform .15s,box-shadow .15s}
.skl .skl-tile:hover{transform:translateY(-1px);box-shadow:var(--sh-lift)}
.skl .skl-em{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;flex:none}
.skl .skl-em svg.sk-i{width:24px;height:24px}
.skl .skl-em--lg{width:56px;height:56px;border-radius:16px}.skl .skl-em--lg svg.sk-i{width:30px;height:30px}
.skl .skl-tx{min-width:0}
.skl .skl-tx b{display:block;font:600 16.5px/1.35 var(--head)}
.skl .skl-tx small{display:block;margin-top:1px;color:var(--muted);font-size:13.5px;line-height:1.45}
.skl .skl-end{display:flex;align-items:center;color:var(--muted)}
.skl .skl-end>svg.sk-i{width:20px;height:20px}
.skl .skl-st{display:inline-flex;align-items:center;gap:4px;height:24px;padding:0 9px;border-radius:999px;font:600 12px/1 var(--head);white-space:nowrap}
.skl .skl-st svg.sk-i{width:13px;height:13px;stroke-width:2.4}
.skl .skl-st--lock{background:#EEF1F5;color:#475569}.skl .skl-st--ok{background:var(--teal-soft);color:var(--teal-ink)}.skl .skl-st--new{background:#FDECEC;color:#C0362C}
.skl .skl-chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font:600 12.5px/1 var(--head)}
.skl .skl-chip--lg{height:28px;padding:0 12px;font-size:14px}
.skl .skl-grp+.skl-grp{margin-top:18px}
.skl .skl-grp>h3{margin:0 2px 10px;font-size:19px}

/* ---------- teacher band ---------- */
.skl .skl-band{display:grid;grid-template-columns:56px minmax(0,1fr) auto;align-items:center;gap:20px;margin-top:30px;padding:16px 22px;border-radius:18px;background:#fff;border:1px solid var(--hair);box-shadow:var(--sh-card);color:var(--ink)}
.skl .skl-band .skl-tx b{font-size:20px}.skl .skl-band .skl-tx small{font-size:14.5px}
.skl .skl-teal.sk-btn-teal{height:50px;padding:0 24px;font-size:18px;white-space:nowrap;justify-content:center}

/* ---------- subject world header (pattern 2): world plate + dark panel ---------- */
.skl .skl-hero--sub{height:auto;min-height:440px;padding:92px 36px 66px;display:flex;align-items:flex-end;background-position:center 58%}
.skl .skl-hero--sub::before{background:linear-gradient(90deg,rgba(8,22,48,.62),rgba(8,22,48,0) 52%),linear-gradient(180deg,rgba(8,22,48,.25),rgba(8,22,48,0) 30%)}
.skl .skl-hpanel{position:relative;z-index:3;width:min(540px,100%);padding:18px 22px 20px;border-radius:20px;background:rgba(12,28,56,.86);border:1px solid rgba(255,255,255,.14);color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 20px 40px -20px rgba(0,0,0,.6)}
.skl .skl-crumb{display:flex;align-items:center;gap:4px;flex-wrap:wrap;font:600 15px/1.3 var(--head);color:#C9D5E8}
.skl .skl-crumb a,.skl .skl-crumb span{display:inline-flex;align-items:center;gap:6px;min-height:32px;border-radius:10px}
.skl .skl-crumb a{padding:0 8px 0 0;color:#DCE6F5}.skl .skl-crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.skl .skl-crumb svg.sk-i{width:17px;height:17px}.skl .skl-crumb>svg.sk-i{width:15px;height:15px;color:#8FA3C0}
.skl .skl-crumb [aria-current]{color:var(--gold-ink);padding:0 4px}
.skl .skl-hpanel h1{margin:4px 0 0;font-size:36px;line-height:1.25}
.skl .skl-hpanel strong{display:block;font:600 18px/1.35 var(--head);color:var(--gold-ink)}
.skl .skl-hpanel p{margin-top:6px;font-size:15px;line-height:1.55;opacity:.9;text-wrap:pretty}
.skl .skl-feats{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 2px;padding:0}
.skl .skl-feats li{display:inline-flex;align-items:center;gap:7px;min-height:30px;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);font:500 13.5px/1.3 var(--body)}
.skl .skl-feats svg.sk-i{width:15px;height:15px;color:var(--gold-ink)}
.skl .skl-hacts{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.skl .skl-hacts .skl-cta{flex:1 1 auto}
.skl .skl-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 18px;border-radius:16px;border:1.5px solid rgba(255,255,255,.55);color:#fff;font:600 17px/1 var(--head);white-space:nowrap}
.skl .skl-ghost:hover{background:rgba(255,255,255,.1)}
.skl .skl-ghost svg.sk-i{width:20px;height:20px}

/* ---------- sticky segmented bar: กลับ + in-page sections ---------- */
.skl .skl-tabs{position:sticky;top:8px;z-index:12;display:flex;gap:4px;width:min(1416px,calc(100% - 64px));margin:-34px auto 0;padding:6px;border-radius:18px;background:#fff;box-shadow:0 12px 28px -18px rgba(16,34,70,.55);overflow-x:auto;scrollbar-width:none}
.skl .skl-tabs::-webkit-scrollbar{display:none}
.skl .skl-tabs a{position:relative;flex:1 0 auto;display:flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 14px;border-radius:14px;font:600 17px/1 var(--head);color:var(--ink);white-space:nowrap}
.skl .skl-tabs a:hover{background:#EEF3F8}
.skl .skl-tabs a svg.sk-i{width:20px;height:20px}
.skl .skl-tabs a[aria-current]{background:var(--teal-soft);color:var(--teal-ink)}
.skl .skl-tabs a[aria-current]::after{content:'';position:absolute;left:26%;right:26%;bottom:5px;height:3px;border-radius:3px;background:var(--teal)}
.skl .skl-tabs .skl-back{flex:0 0 auto;background:var(--navy);color:#fff;padding:0 16px 0 12px}
.skl .skl-tabs .skl-back:hover{background:var(--navy-2)}
.skl .skl-anchor{scroll-margin-top:76px}
.skl .skl-subject .skl-wrap{padding-top:14px}

/* ---------- lessons rail + progress card ---------- */
.skl .skl-sgrid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:18px;align-items:start}
.skl .skl-sgrid>*{min-width:0}
.skl .skl-sgrid .skl-sec{margin-top:16px}
.skl .skl-lessons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.skl .skl-lc{position:relative;display:flex;flex-direction:column;border-radius:16px;overflow:hidden;background:var(--navy);color:#fff;box-shadow:0 12px 26px -16px rgba(16,34,70,.6);transition:transform .15s}
.skl .skl-lc:hover{transform:translateY(-2px)}
.skl .skl-lc img{display:block;width:100%;height:150px;object-fit:cover;background:#1B355E}
.skl .skl-tag{position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;gap:5px;height:26px;padding:0 12px;border-radius:999px;background:var(--teal);color:#052B2A;font:600 13.5px/1 var(--head)}
.skl .skl-tag--lock{background:rgba(255,255,255,.94);color:#334155}.skl .skl-tag svg.sk-i{width:13px;height:13px;stroke-width:2.4}
.skl .skl-lbd{flex:1;display:flex;flex-direction:column;padding:14px 16px 16px}
.skl .skl-lbd b{font:600 19px/1.35 var(--head)}.skl .skl-lbd b span{color:var(--gold-ink);margin-right:7px}
.skl .skl-lp{flex:1;margin:4px 0 12px;font-size:14px;line-height:1.5;opacity:.85}
.skl .skl-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font:600 15px/1 var(--head);color:#9FF0E6}
.skl .skl-gob{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;border:2px solid rgba(255,255,255,.8);color:#fff}
.skl .skl-gob svg.sk-i{width:18px;height:18px;stroke-width:2.6}
.skl .skl-lc.skl-cur{box-shadow:0 0 0 3px var(--teal),0 12px 26px -12px rgba(31,199,182,.6)}
.skl .skl-lc.skl-cur .skl-gob{background:var(--teal);border-color:var(--teal);color:#052B2A}
.skl .skl-extra{margin-top:12px}
.skl .skl-pcard{margin-top:16px;padding:16px 18px 18px;border-radius:18px;background:#fff;box-shadow:0 12px 26px -18px rgba(16,34,70,.5)}
.skl .skl-pcard h3{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:20px}
.skl .skl-pcard h3 a{display:flex;align-items:center;gap:2px;min-height:44px;font:600 14.5px var(--head);color:var(--teal-ink)}
.skl .skl-pcard h3 a svg.sk-i{width:16px;height:16px}
.skl .skl-sum{display:grid;grid-template-columns:104px minmax(0,1fr);gap:14px;align-items:center;min-height:128px;margin:8px 0 4px;padding:12px;border-radius:14px;background:var(--soft)}
.skl .skl-ring{position:relative;display:block;width:104px;height:104px;border-radius:50%;margin:0}
.skl .skl-ring svg{width:100%;height:100%;display:block}
.skl .skl-ring b{position:absolute;inset:0;display:grid;place-items:center;font:600 26px/1 var(--head)}
.skl .skl-st2{display:grid;gap:4px;color:var(--muted);font:500 14px/1.4 var(--body)}
.skl .skl-st2 b{display:flex;align-items:center;gap:6px;font:600 16px/1.35 var(--head);color:var(--ink)}
.skl .skl-st2 svg.sk-i{width:18px;height:18px;color:var(--teal-ink)}
.skl .skl-pcard .skl-tile{min-height:64px;margin-top:10px;box-shadow:none}
.skl .skl-empty{display:grid;justify-items:start;gap:6px;min-height:128px;margin:8px 0 4px;padding:14px;border-radius:14px;background:var(--soft)}
.skl .skl-empty b{font:600 17px/1.35 var(--head)}.skl .skl-empty small{color:var(--muted);font-size:14px;line-height:1.5}
.skl .skl-empty .skl-teal{margin-top:6px;height:46px;font-size:17px}

/* ---------- topic path ---------- */
.skl .skl-path{display:grid;grid-template-columns:220px minmax(0,1fr);align-items:center;gap:12px;margin-top:18px;padding:14px 20px;border-radius:18px;background:#fff;box-shadow:0 10px 24px -18px rgba(16,34,70,.45)}
.skl .skl-path-h h3{display:flex;align-items:center;gap:10px;font-size:21px}
.skl .skl-path-h h3 svg.sk-i{color:var(--teal-ink)}
.skl .skl-path-h small{display:block;color:var(--muted);font:400 13.5px/1.45 var(--body)}
.skl .skl-nodes{list-style:none;display:flex;gap:4px;margin:0;padding:6px 2px 4px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:thin}
.skl .skl-node{flex:1 0 96px;scroll-snap-align:start}
.skl .skl-node a,.skl .skl-node>span{display:grid;justify-items:center;gap:5px;min-height:96px;padding:4px 4px 6px;border-radius:12px;text-align:center;font:500 14px/1.3 var(--body);color:var(--ink)}
.skl .skl-node a:hover{background:#F2F6FA}
.skl .skl-node i{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#E7ECF2;color:#5E6B80;border:3px solid #fff;box-shadow:0 0 0 1px #DDE3EA}
.skl .skl-node i svg.sk-i{width:20px;height:20px;stroke-width:2.4}
.skl .skl-node small{font:600 11.5px/1.2 var(--head);color:var(--muted)}
.skl .skl-node.is-done i{background:var(--teal);color:#fff;box-shadow:none}
.skl .skl-node.is-current i{background:#FFF7DA;color:#B57A00;box-shadow:0 0 0 3px var(--gold)}
.skl .skl-node.is-current small{color:#8A5A00}
.skl .skl-node.is-locked>span{color:var(--muted)}

/* ---------- prev / all / next ---------- */
.skl .skl-np{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;margin-top:30px}
.skl .skl-np a{display:flex;align-items:center;gap:12px;min-height:68px;padding:12px 18px;border-radius:var(--r-card);background:#fff;border:1px solid var(--hair);box-shadow:var(--sh-card);color:var(--ink)}
.skl .skl-np a:hover{box-shadow:var(--sh-lift)}
.skl .skl-np small{display:block;color:var(--muted);font-size:13px;line-height:1.3}.skl .skl-np b{font:600 16.5px/1.35 var(--head)}
.skl .skl-np svg.sk-i{color:var(--teal-ink)}
.skl .skl-np .skl-np-r{justify-content:flex-end;text-align:right}

/* ---------- tablet ---------- */
@media (max-width:1180px){
 .skl .skl-resume{grid-template-columns:132px minmax(0,1fr) auto}.skl .skl-rstats{display:none}
 .skl .skl-worlds{grid-template-columns:repeat(3,1fr)}
 .skl .skl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .skl .skl-sgrid{grid-template-columns:minmax(0,1fr)}
 .skl .skl-tabs a{font-size:16px}
}
/* ---------- phone (390px first) ---------- */
@media (max-width:760px){
 .skl .skl-hero{height:auto;min-height:214px;padding:74px 14px 40px;display:flex;align-items:flex-end;background-image:var(--world-sm,var(--world))}
 .skl .skl-htitle{position:relative;left:auto;bottom:auto;width:100%;padding:14px 16px 16px}
 .skl .skl-htitle h1{font-size:32px}.skl .skl-htitle strong{font-size:18px}.skl .skl-htitle p{font-size:14.5px}
 .skl .skl-resume{grid-template-columns:84px minmax(0,1fr);width:calc(100% - 28px);min-height:0;margin-top:-26px;gap:12px;padding:12px;border-radius:18px}
 .skl .skl-resume .skl-thumb{width:84px;height:84px}
 .skl .skl-resume b{font-size:17.5px;margin:4px 0 0}.skl .skl-resume small{font-size:13px}
 .skl .skl-resume .skl-cta{grid-column:1/-1;height:48px;font-size:18px}
 .skl .skl-resume--wait{min-height:168px}
 .skl .skl-rstats{display:none}
 .skl .skl-wrap{padding:6px 14px 112px}
 .skl .skl-sec{margin:22px 2px 10px}.skl .skl-sec h2{font-size:20px}
 .skl .skl-worlds{grid-template-columns:1fr 1fr;gap:10px}
 .skl .skl-world{height:132px}.skl .skl-world:last-child{grid-column:1/-1;height:116px}
 .skl .skl-wbd{left:12px;right:10px;bottom:10px}.skl .skl-wbd b{font-size:18px}.skl .skl-wbd small{font-size:12.5px;line-height:1.35;white-space:normal;text-overflow:clip;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2}
 .skl .skl-go{width:32px;height:32px}
 .skl .skl-pill{left:8px;top:8px;height:22px;line-height:22px;font-size:11.5px}
 .skl .skl-grid,.skl .skl-grid--2{grid-template-columns:minmax(0,1fr);gap:10px}
 .skl .skl-tile{min-height:66px;padding:10px 12px;gap:12px;grid-template-columns:42px minmax(0,1fr) auto}
 .skl .skl-em{width:42px;height:42px}
 .skl .skl-grp>h3{font-size:17px}
 .skl .skl-band{grid-template-columns:48px minmax(0,1fr);padding:14px}.skl .skl-band .skl-em--lg{width:48px;height:48px}.skl .skl-band .skl-teal{grid-column:1/-1}
 .skl .skl-band .skl-tx b{font-size:18px}
 .skl .skl-hero--sub{min-height:330px;padding:74px 14px 56px;background-image:var(--world-sm,var(--world))}
 .skl .skl-hpanel{width:100%;padding:14px 16px 16px}
 .skl .skl-hpanel h1{font-size:30px}.skl .skl-hpanel strong{font-size:16.5px}.skl .skl-hpanel p{font-size:14px}
 .skl .skl-feats{display:none}
 .skl .skl-hacts{gap:8px}.skl .skl-hacts .skl-cta{height:50px;font-size:18px;padding:0 18px}.skl .skl-ghost{height:50px;padding:0 14px;font-size:16px}
 .skl .skl-tabs{top:6px;width:calc(100% - 28px);margin-top:-30px;padding:5px;-webkit-mask-image:linear-gradient(90deg,#000 86%,transparent);mask-image:linear-gradient(90deg,#000 86%,transparent)}
 .skl .skl-tabs a{flex:0 0 auto;height:46px;padding:0 13px;font-size:15.5px;gap:6px}
 .skl .skl-tabs a svg.sk-i{width:18px;height:18px}
 .skl .skl-tabs .skl-back span{display:none}.skl .skl-tabs .skl-back{padding:0 12px;width:46px;justify-content:center}
 .skl .skl-tabs a[aria-current]::after{left:30%;right:30%}
 .skl .skl-lessons{display:flex;overflow-x:auto;gap:10px;scroll-snap-type:x mandatory;scroll-padding:0 14px;margin:0 -14px;padding:0 14px 8px;scrollbar-width:none}
 .skl .skl-lessons::-webkit-scrollbar{display:none}
 .skl .skl-lc{flex:0 0 78%;scroll-snap-align:start}.skl .skl-lc img{height:124px}
 .skl .skl-path{grid-template-columns:minmax(0,1fr);padding:14px}
 .skl .skl-node{flex:0 0 84px}
 .skl .skl-np{grid-template-columns:1fr 1fr}.skl .skl-np .skl-np-mid{grid-column:1/-1;order:3}
 .skl .skl-np a{padding:10px 12px}
}