:root{--lk3-ch-paper:#f4f0e7;--lk3-ch-ink:#151515;--lk3-ch-red:#ef2b2d;--lk3-ch-blue:#315bff;--lk3-ch-line:rgba(21,21,21,.28)}
.lk3-challenges-family-body{margin:0;background:var(--lk3-ch-paper);color:var(--lk3-ch-ink)}
.lk3-challenges-main{overflow:hidden;background:var(--lk3-ch-paper)}
.lk3-challenge-shell{width:min(1360px,calc(100% - 64px));margin-inline:auto}
.lk3-challenge-btn{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;min-height:52px;padding:0 24px;border:1px solid var(--lk3-ch-ink);color:var(--lk3-ch-ink);font-weight:800;text-decoration:none}
.lk3-challenge-btn--red{border-color:var(--lk3-ch-red);background:var(--lk3-ch-red);color:#fff}
.lk3-challenge-btn:hover,.lk3-challenge-btn:focus-visible{transform:translateY(-2px)}

/* PAGE 13 · approved action-field Hero */
.lk3-challenge-hero{border-bottom:1px solid var(--lk3-ch-ink)}
.lk3-challenge-hero-inner{display:grid;grid-template-columns:60% 40%;min-height:560px}
.lk3-challenge-hero-copy{position:relative;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:64px 80px 64px 34px}
.lk3-challenge-hero-copy:before{position:absolute;left:0;top:90px;width:5px;height:78px;background:var(--lk3-ch-red);content:""}
.lk3-challenge-kicker{display:flex;align-items:center;gap:12px;margin:0 0 30px;color:var(--lk3-ch-blue);font-size:14px;font-weight:900;letter-spacing:.13em}
.lk3-challenge-kicker:before{width:28px;height:4px;background:var(--lk3-ch-red);content:""}
.lk3-challenge-hero h1{max-width:760px;margin:0;font-size:clamp(58px,5.4vw,96px);font-weight:900;line-height:.91;letter-spacing:-.055em}
.lk3-challenge-hero-copy>p:not(.lk3-challenge-kicker){max-width:620px;margin:30px 0 34px;font-size:18px;line-height:1.6}
.lk3-challenge-action-field{display:flex;align-items:center;padding:42px;background-color:#ece7dd;background-image:linear-gradient(rgba(21,21,21,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(21,21,21,.07) 1px,transparent 1px);background-size:34px 34px;border-left:1px solid var(--lk3-ch-ink)}
.lk3-challenge-action-sheet{position:relative;display:flex;min-height:380px;width:100%;padding:42px;align-items:flex-end;background:#fff;border:1px solid var(--lk3-ch-ink);box-shadow:15px 15px 0 rgba(21,21,21,.08);overflow:hidden}
.lk3-challenge-action-sheet:before{position:absolute;right:-5px;top:-36px;content:"01";font-size:190px;font-weight:900;line-height:1;color:#ebe8e1;letter-spacing:-.08em}
.lk3-challenge-action-sheet>div{display:grid;gap:6px;position:relative;z-index:1}.lk3-challenge-action-sheet small{font-weight:900;letter-spacing:.12em}.lk3-challenge-action-sheet strong{font-size:21px}
.lk3-challenge-action-check{position:absolute!important;left:42px;top:45px;width:70px;height:70px;border:5px solid var(--lk3-ch-blue);transform:rotate(-5deg)}
.lk3-challenge-action-check:after{position:absolute;left:17px;top:5px;width:24px;height:42px;border:solid var(--lk3-ch-red);border-width:0 7px 7px 0;transform:rotate(45deg);content:""}

.lk3-challenge-resume{padding:28px 0 58px}.lk3-challenge-resume-rail{position:relative;display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px;padding:30px 0 0;border-top:2px solid var(--lk3-ch-ink)}
.lk3-challenge-resume-rail:before{position:absolute;left:0;top:-2px;width:92px;height:5px;background:var(--lk3-ch-red);content:""}
.lk3-challenge-resume-rail small,.lk3-cw-resume-rail small{font-size:14px;font-weight:900;letter-spacing:.13em}.lk3-challenge-resume-rail h2,.lk3-cw-resume-rail h2{margin:8px 0;font-size:clamp(24px,2.2vw,35px);line-height:1.05}.lk3-challenge-resume-rail p,.lk3-cw-resume-rail p{margin:0;color:#625c53}
.lk3-challenge-progress,.lk3-cw-progress-bar,.lk3-challenge-card-progress>span{height:7px;background:#dcd8d0;overflow:hidden}.lk3-challenge-progress{max-width:480px;margin:14px 0 10px}.lk3-challenge-progress span,.lk3-cw-progress-bar span,.lk3-challenge-card-progress>span:after{display:block;width:var(--progress,0);height:100%;background:var(--lk3-ch-blue);content:""}

.lk3-challenge-orientation{padding-bottom:74px}.lk3-challenge-orientation-grid{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--lk3-ch-ink)}
.lk3-challenge-rule{display:grid;grid-template-columns:auto 1fr;gap:20px;min-height:145px;padding:28px;border-right:1px solid var(--lk3-ch-line)}.lk3-challenge-rule:first-child{padding-left:0}.lk3-challenge-rule:last-child{border-right:0}
.lk3-challenge-rule-index{color:#aaa398;font-size:28px;font-weight:900}.lk3-challenge-rule h3{margin:3px 0;font-size:21px;line-height:1.18}

.lk3-challenge-featured{padding-bottom:76px}.lk3-challenge-featured-poster{position:relative;display:grid;grid-template-columns:44% 56%;min-height:455px;background:#0d0d0d;color:#fff;overflow:hidden}
.lk3-challenge-featured-poster:before{position:absolute;left:0;top:0;width:100%;height:5px;background:var(--lk3-ch-red);content:""}
.lk3-challenge-featured-left{position:relative;display:flex;align-items:flex-end;padding:30px;border-right:1px solid #3a3a3a;background-image:radial-gradient(circle at 32% 34%,rgba(49,91,255,.45),transparent 31%)}
.lk3-challenge-featured-left strong{font-size:clamp(150px,18vw,290px);line-height:.72;letter-spacing:-.1em;color:#fff}.lk3-challenge-featured-mark{position:absolute;top:56px;left:56px;width:84px;height:84px;border:7px solid var(--lk3-ch-red)}
.lk3-challenge-featured-mark:after{position:absolute;left:25px;top:9px;width:25px;height:45px;border:solid #fff;border-width:0 8px 8px 0;transform:rotate(45deg);content:""}
.lk3-challenge-featured-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:60px 72px}.lk3-challenge-featured-copy small{color:#aaa4ff;font-weight:900;letter-spacing:.12em}.lk3-challenge-featured-copy h2{max-width:620px;margin:18px 0;font-size:clamp(44px,4.2vw,72px);line-height:.94;letter-spacing:-.04em}.lk3-challenge-featured-copy p{max-width:600px;color:#d0cbc2;font-size:17px;line-height:1.55}.lk3-challenge-featured-copy a{margin-top:25px;color:#fff;font-weight:900;text-decoration:none;border-bottom:2px solid var(--lk3-ch-red)}

.lk3-challenge-library{padding-bottom:88px}.lk3-challenge-library-head{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:end;margin-bottom:34px}.lk3-challenge-library-head h2{margin:0;font-size:clamp(40px,4.4vw,72px);line-height:.96;letter-spacing:-.045em}.lk3-challenge-library-head p{max-width:580px;margin:0 0 6px;line-height:1.55}
.lk3-challenge-library-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.lk3-challenge-program{position:relative;min-height:440px;border:1px solid var(--lk3-ch-ink);background:#fff}.lk3-challenge-program:before{position:absolute;left:-1px;right:-1px;top:-1px;height:5px;background:var(--lk3-ch-blue);content:"";z-index:2}.lk3-challenge-program>a{display:grid;grid-template-rows:220px 1fr;height:100%;color:inherit;text-decoration:none}.lk3-challenge-program-visual{position:relative;display:flex;align-items:center;justify-content:center;background:#ded9cf;overflow:hidden}.lk3-challenge-program-visual:before{content:attr(data-count);font-size:150px;font-weight:900;line-height:1;color:rgba(21,21,21,.15);letter-spacing:-.08em}.lk3-challenge-program-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.lk3-challenge-program--type .lk3-challenge-program-visual{background:var(--lk3-ch-red)}.lk3-challenge-program--type .lk3-challenge-program-visual:before{color:#fff}.lk3-challenge-program--talk .lk3-challenge-program-visual{background:#111;background-image:repeating-radial-gradient(circle at 50% 120%,transparent 0 30px,rgba(49,91,255,.45) 31px 33px)}
.lk3-challenge-program-copy{display:flex;flex-direction:column;padding:28px 30px}.lk3-challenge-program-copy>small{font-weight:900;letter-spacing:.1em}.lk3-challenge-program-title{display:flex;gap:20px;justify-content:space-between;align-items:start}.lk3-challenge-program-title h3{margin:12px 0;font-size:34px;line-height:1}.lk3-challenge-program-title strong{font-size:40px;color:#aaa398}.lk3-challenge-program-copy p{margin:0 0 22px;line-height:1.5}.lk3-challenge-program-link{margin-top:auto;font-weight:900}.lk3-challenge-card-progress{display:grid;gap:6px;margin:0 0 18px}.lk3-challenge-card-progress>span{position:relative}.lk3-challenge-zero{display:flex;gap:22px;align-items:center;min-height:150px;padding:30px;border:1px solid var(--lk3-ch-ink)}.lk3-challenge-zero>span{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:var(--lk3-ch-red);color:#fff;font-size:26px}.lk3-challenge-zero h3{margin:0 0 7px;font-size:27px}.lk3-challenge-zero p{margin:0}

/* PAGE 14 · approved collection canvas */
.lk3-cw-shell{width:min(1360px,calc(100% - 64px));margin-inline:auto}.lk3-cw-context{padding:30px 0 0}.lk3-cw-context nav{display:flex;gap:12px;font-size:14px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.lk3-cw-context a{color:inherit}
.lk3-cw-hero{padding:54px 0 64px;border-bottom:1px solid var(--lk3-ch-ink)}.lk3-cw-hero-inner{display:grid;grid-template-columns:58% 42%;min-height:430px}.lk3-cw-hero-copy{position:relative;padding:52px 70px 52px 34px}.lk3-cw-hero-copy:before{position:absolute;top:52px;left:0;width:5px;height:78px;background:var(--lk3-ch-red);content:""}.lk3-cw-kicker{color:var(--lk3-ch-blue);font-size:14px;font-weight:900;letter-spacing:.12em}.lk3-cw-hero h1{max-width:760px;margin:26px 0 22px;font-size:clamp(56px,5.4vw,88px);line-height:.91;letter-spacing:-.055em}.lk3-cw-hero-copy>p:not(.lk3-cw-kicker){max-width:650px;font-size:18px;line-height:1.55}.lk3-cw-mantra{display:block;margin-top:30px;font-size:22px}.lk3-cw-hero-field{position:relative;display:flex;align-items:flex-end;padding:42px;border-left:1px solid var(--lk3-ch-ink);background:#fff;overflow:hidden}.lk3-cw-field-number{position:absolute;right:-8px;top:-42px;color:#e8e4dc;font-size:220px;font-weight:900;letter-spacing:-.1em}.lk3-cw-field-check{position:absolute;top:75px;left:50px;width:80px;height:80px;border:7px solid var(--lk3-ch-blue);transform:rotate(-5deg)}.lk3-cw-field-check:after{position:absolute;left:26px;top:10px;width:25px;height:43px;border:solid var(--lk3-ch-red);border-width:0 8px 8px 0;transform:rotate(45deg);content:""}.lk3-cw-hero-field>div{display:grid;gap:8px;z-index:1}.lk3-cw-hero-field small{font-weight:900;letter-spacing:.12em}.lk3-cw-hero-field strong{font-size:20px}
.lk3-cw-guidance{padding:0 0 54px}.lk3-cw-guidance-grid{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--lk3-ch-ink)}.lk3-cw-guidance-grid>div{display:grid;gap:7px;padding:25px;border-right:1px solid var(--lk3-ch-line)}.lk3-cw-guidance-grid>div:first-child{padding-left:0}.lk3-cw-guidance-grid>div:last-child{border-right:0}.lk3-cw-guidance-grid small{font-size:14px;font-weight:900;letter-spacing:.12em}.lk3-cw-guidance-grid strong{font-size:17px}
.lk3-cw-resume{padding:30px 0 54px}.lk3-cw-resume-rail{position:relative;display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;padding-top:30px;border-top:2px solid var(--lk3-ch-ink)}.lk3-cw-resume-rail:before{position:absolute;left:0;top:-2px;width:92px;height:5px;background:var(--lk3-ch-blue);content:""}.lk3-cw-progress-bar{max-width:560px;margin:13px 0 9px}
.lk3-cw-authored{padding:0 0 76px}.lk3-cw-authored-canvas{width:100%;max-width:1120px;margin-inline:auto;border-inline:1px solid var(--lk3-ch-line)}
.challenge-block{scroll-margin-top:110px;border-top:2px solid var(--lk3-ch-ink);transition:background-color .25s ease,box-shadow .25s ease}.challenge-block:last-child{border-bottom:2px solid var(--lk3-ch-ink)}.challenge-block.is-arrival-target{background:#fff7d2;box-shadow:inset 6px 0 var(--lk3-ch-red)}.challenge-grid{display:grid;grid-template-columns:150px 1fr 88px;gap:30px;padding:46px 36px}.challenge-number{color:#aaa398;font-size:76px;font-weight:900;line-height:.85;letter-spacing:-.07em}.challenge-body h2{margin:0 0 16px;font-size:38px;line-height:1.04;letter-spacing:-.035em}.challenge-body p{margin:0 0 20px;font-size:17px;line-height:1.62}.challenge-body img,.challenge-context img{display:block;max-width:100%;height:auto}.challenge-step{margin-top:24px;padding:22px;border-left:5px solid var(--lk3-ch-red);background:#fff}.challenge-step span,.challenge-lock-label{font-size:14px;font-weight:900;letter-spacing:.12em}.challenge-step p{margin:7px 0 0}.challenge-action{display:flex;flex-direction:column;align-items:center;justify-content:start;gap:9px;margin:0}.challenge-check{display:grid;place-items:center;width:62px;height:62px;min-height:44px;border:3px solid var(--lk3-ch-ink);background:transparent;color:transparent;font-size:28px;cursor:pointer}.challenge-check[aria-pressed="true"]{border-color:var(--lk3-ch-blue);background:var(--lk3-ch-blue);color:#fff}.challenge-status{text-align:center;font-size:14px;font-weight:800}.challenge-login,.challenge-unlock{display:inline-flex;align-items:center;justify-content:center;min-height:44px;color:var(--lk3-ch-ink);font-size:14px;font-weight:900;text-align:center}.challenge-grid--locked{background:#ece8e0}.challenge-grid--locked .challenge-number{opacity:.55}.challenge-lock-label{display:inline-block;margin-bottom:12px;color:var(--lk3-ch-blue)}
.lk3-cw-finish{padding:0 0 65px}.lk3-cw-finish-panel{display:grid;grid-template-columns:1fr auto;align-items:center;gap:35px;padding:42px;border:2px solid var(--lk3-ch-ink);border-top:6px solid var(--lk3-ch-red);background:#fff}.lk3-cw-finish-panel small{font-weight:900;letter-spacing:.12em}.lk3-cw-finish-panel h2{margin:8px 0;font-size:36px}.lk3-cw-finish-panel p{margin:0}.lk3-cw-back{padding:0 0 76px}.lk3-cw-back>div>div{display:flex;justify-content:space-between;padding-top:24px;border-top:1px solid var(--lk3-ch-ink)}.lk3-cw-back a{min-height:44px;color:inherit;font-weight:800}.lk3-cw-not-found{padding:100px 0}.lk3-cw-not-found h1{font-size:54px}

/* APPROVED PAGE 13–14 HTML GEOMETRY LOCK */
.lk3-challenge-btn{min-height:54px;padding:0 25px;border-width:2px;border-radius:8px;gap:14px}
.lk3-challenge-hero{background:linear-gradient(180deg,#f8f4ec 0%,var(--lk3-ch-paper) 100%);border-bottom-color:rgba(21,21,21,.18)}
.lk3-challenge-hero-copy{padding:68px 68px 62px 0}
.lk3-challenge-hero-copy:before{left:-22px;top:70px;height:76px}
.lk3-challenge-kicker{gap:11px;margin:0;color:#6a655e;font-size:14px;font-weight:800;text-transform:uppercase}
.lk3-challenge-kicker:before{width:34px;height:5px;background:var(--lk3-ch-blue)}
.lk3-challenge-hero h1{max-width:800px;margin:18px 0 19px;font-size:clamp(58px,5.4vw,82px);line-height:.92;letter-spacing:-.06em}
.lk3-challenge-hero-copy>p:not(.lk3-challenge-kicker){max-width:700px;margin:0 0 29px;color:#68625b;font-size:18px;line-height:1.62}
.lk3-challenge-action-field{position:relative;min-width:0;width:calc(100% + max(32px,calc((100vw - 1360px)/2)));margin-right:calc(0px - max(32px,calc((100vw - 1360px)/2)));padding:34px 0 34px 22px;border:0;background:none}
.lk3-challenge-action-sheet{height:100%;min-height:492px;padding:0;align-items:initial;background:repeating-linear-gradient(180deg,transparent 0 46px,rgba(21,21,21,.08) 46px 47px),#fff;border:0;border-left:1px solid rgba(21,21,21,.18);box-shadow:none}
.lk3-challenge-action-sheet:before{right:4%;top:1%;font-size:clamp(140px,13vw,220px);line-height:.8;color:rgba(49,91,255,.1)}
.lk3-challenge-action-check{left:9%!important;top:24%!important;width:54px!important;height:54px!important;border:3px solid var(--lk3-ch-ink)!important;transform:none}
.lk3-challenge-action-check:after{left:10px;top:6px;width:36px;height:17px;border:0;border-left:5px solid var(--lk3-ch-red);border-bottom:5px solid var(--lk3-ch-red);transform:rotate(-45deg)}
.lk3-challenge-action-sheet>div{position:absolute;left:10%;right:14%;bottom:12%;display:block;padding-top:14px;border-top:2px solid var(--lk3-ch-ink)}
.lk3-challenge-action-sheet small{display:block;color:#777168;font-size:14px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.lk3-challenge-action-sheet strong{display:block;max-width:390px;margin-top:8px;font-size:26px;line-height:1.06;letter-spacing:-.035em}
.lk3-challenge-resume-rail{min-height:124px;padding:22px 0 20px;border-bottom:1px solid rgba(21,21,21,.22)}
.lk3-challenge-resume-rail:before{width:68px}
.lk3-challenge-resume-rail h2,.lk3-cw-resume-rail h2{margin:0 0 5px;font-size:31px;line-height:1.03;letter-spacing:-.04em}
.lk3-challenge-resume-rail p,.lk3-cw-resume-rail p{font-size:16px;line-height:1.5}
.lk3-challenge-orientation-grid{border:0;border-top:2px solid var(--lk3-ch-ink)}
.lk3-challenge-rule{display:block;min-height:164px;padding:24px 28px 22px 0}.lk3-challenge-rule+.lk3-challenge-rule{padding-left:28px}
.lk3-challenge-rule-index{display:block;margin-bottom:24px;color:var(--lk3-ch-blue);font-size:14px;letter-spacing:.08em}.lk3-challenge-rule h3{margin:0;font-size:23px;line-height:1.1;letter-spacing:-.032em}
.lk3-challenge-featured-poster{min-height:500px;grid-template-columns:44% 56%}
.lk3-challenge-featured-poster:before{width:78px}
.lk3-challenge-featured-left{min-height:500px;padding:0;background:repeating-linear-gradient(180deg,transparent 0 48px,rgba(244,240,231,.08) 48px 49px)}
.lk3-challenge-featured-left strong{position:absolute;left:7%;bottom:4%;font-size:clamp(150px,15vw,230px);line-height:.75}
.lk3-challenge-featured-mark{left:auto;right:9%;top:12%;width:72px;height:72px;border:4px solid var(--lk3-ch-paper)}
.lk3-challenge-featured-mark:after{left:13px;top:10px;width:47px;height:22px;border-width:0 0 6px 6px;transform:rotate(-45deg)}
.lk3-challenge-featured-copy{padding:48px 48px 44px}.lk3-challenge-featured-copy small{color:rgba(244,240,231,.54);font-size:14px}.lk3-challenge-featured-copy h2{margin:13px 0 14px;font-size:clamp(42px,4vw,60px);line-height:.95}.lk3-challenge-featured-copy p{margin:0 0 24px;color:rgba(244,240,231,.65);font-size:16px}.lk3-challenge-featured-copy a{margin-top:0;border-bottom:1px solid rgba(244,240,231,.34);font-size:14px}
.lk3-challenge-library-head{display:flex;justify-content:space-between;gap:24px;margin-bottom:22px}.lk3-challenge-library-head h2{font-size:clamp(40px,3.3vw,52px)}.lk3-challenge-library-head p{max-width:480px;font-size:16px}
.lk3-challenge-library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 30px}
.lk3-challenge-program{min-height:360px;border:0;border-top:2px solid var(--lk3-ch-ink);border-bottom:1px solid rgba(21,21,21,.18);background:rgba(255,255,255,.12)}.lk3-challenge-program:before{left:0;right:auto;top:-2px;width:62px;height:5px}.lk3-challenge-program>a{grid-template-rows:1fr auto}.lk3-challenge-program-visual{min-height:220px}.lk3-challenge-program-copy{padding:22px 0 20px}.lk3-challenge-program-title h3{margin:0;max-width:500px;font-size:31px;line-height:1.02}.lk3-challenge-program-title strong{font-size:46px}.lk3-challenge-program-copy p{margin:10px 0 16px;font-size:16px}.lk3-challenge-program-link{font-size:14px}

.lk3-cw-context{padding:30px 0 0}.lk3-cw-context nav{flex-wrap:wrap;gap:7px;color:#777168;font-size:14px;line-height:1.4}.lk3-cw-hero{padding:26px 0 48px;border-bottom-color:rgba(21,21,21,.2)}
.lk3-cw-hero-inner{grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);gap:56px;align-items:end;min-height:0}.lk3-cw-hero-copy{padding:26px 0 0}.lk3-cw-hero-copy:before{left:0;top:0;width:68px;height:5px}.lk3-cw-kicker{margin-bottom:15px;color:#6c675f;font-size:14px;font-weight:800;text-transform:uppercase}.lk3-cw-hero h1{max-width:880px;margin:0;font-size:clamp(54px,5.25vw,78px);line-height:.93;letter-spacing:-.059em}.lk3-cw-hero-copy>p:not(.lk3-cw-kicker){max-width:760px;margin:20px 0 0;color:#68625b;font-size:18px;line-height:1.62}.lk3-cw-mantra{display:inline-block;margin-top:27px;padding-top:13px;border-top:2px solid var(--lk3-ch-ink);font-size:22px;line-height:1.08}
.lk3-cw-hero-field{min-height:355px;padding:0;background:repeating-linear-gradient(180deg,transparent 0 46px,rgba(21,21,21,.08) 46px 47px),#fff}.lk3-cw-field-number{right:4%;top:1%;font-size:clamp(150px,13vw,210px);line-height:.8;color:rgba(49,91,255,.11)}.lk3-cw-field-check{left:10%;top:20%;width:60px;height:60px;border:3px solid var(--lk3-ch-ink);transform:none}.lk3-cw-field-check:after{left:11px;top:6px;width:40px;height:20px;border-width:0 0 5px 5px;transform:rotate(-45deg)}.lk3-cw-hero-field>div{position:absolute;left:10%;right:12%;bottom:12%;display:block;padding-top:13px;border-top:2px solid var(--lk3-ch-ink)}.lk3-cw-hero-field small{display:block;color:#777168;font-size:14px}.lk3-cw-hero-field strong{display:block;margin-top:7px;font-size:23px;line-height:1.07}
.lk3-cw-guidance{padding:24px 0 0}.lk3-cw-guidance-grid{grid-template-columns:repeat(var(--guide-count,3),minmax(0,1fr));border-top:1px solid rgba(21,21,21,.28);border-bottom:1px solid rgba(21,21,21,.22)}.lk3-cw-guidance-grid>div{min-height:102px;padding:18px 24px 18px 0}.lk3-cw-guidance-grid>div+div{padding-left:24px}.lk3-cw-guidance-grid small{font-size:14px}.lk3-cw-guidance-grid strong{font-size:14px;line-height:1.45}
.lk3-cw-resume{padding:30px 0 46px}.lk3-cw-resume-rail{min-height:126px;padding:22px 0 20px;border-bottom:1px solid rgba(21,21,21,.22)}.lk3-cw-resume-rail:before{width:68px}.lk3-cw-progress-bar{width:min(580px,100%);margin-top:12px}
.lk3-cw-authored{padding:10px 0 66px}.lk3-cw-authored-canvas{width:min(1120px,100%);max-width:none;border:0}.challenge-block{position:relative;padding:34px 0 36px}.challenge-block.is-arrival-target{background:rgba(221,244,96,.18);box-shadow:0 0 0 16px rgba(221,244,96,.18)}.challenge-grid{grid-template-columns:150px minmax(0,1fr) 88px;gap:28px;padding:0}.challenge-number{font-size:74px;line-height:.82;color:rgba(21,21,21,.16)}.challenge-body h2{max-width:760px;margin:0 0 11px;font-size:clamp(30px,3vw,42px);line-height:1}.challenge-body p{max-width:700px;margin:0;color:#68625b;font-size:16px;line-height:1.58}.challenge-step{margin-top:22px;padding:16px 0 0 18px;border-left-color:var(--lk3-ch-blue);background:none}.challenge-step span{color:var(--lk3-ch-blue)}.challenge-action{justify-content:flex-end}.challenge-check{width:58px;height:58px}.challenge-check[aria-pressed="true"]{border-color:var(--lk3-ch-ink);background:var(--lk3-ch-ink);color:var(--lk3-ch-paper)}.challenge-status{font-size:14px;letter-spacing:.08em;text-transform:uppercase}
.lk3-cw-finish{padding:0 0 58px}.lk3-cw-finish-panel{position:relative;width:min(1120px,100%);margin-inline:auto;min-height:250px;padding:34px 0 30px;border:0;border-top:2px solid var(--lk3-ch-ink);border-bottom:2px solid var(--lk3-ch-ink);background:none}.lk3-cw-finish-panel:before{position:absolute;left:0;top:-2px;width:76px;height:5px;background:var(--lk3-ch-red);content:""}.lk3-cw-finish-panel h2{margin:0 0 10px;font-size:clamp(42px,4vw,60px);line-height:.94}.lk3-cw-finish-panel p{max-width:700px;margin:0 0 24px}.lk3-cw-back{padding:0 0 74px}.lk3-cw-back>div>div{width:min(1120px,100%);margin-inline:auto;padding-top:19px;border-top-color:rgba(21,21,21,.2);font-size:14px}

@media(max-width:1199px){.lk3-challenge-hero-inner{grid-template-columns:58% 42%}.lk3-challenge-hero-copy{padding-right:44px}.lk3-challenge-action-field{width:calc(100% + 40px);margin-right:-40px}.lk3-cw-hero-inner{grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);gap:40px}.challenge-grid{grid-template-columns:110px minmax(0,1fr) 72px;gap:22px}.challenge-number{font-size:60px}.challenge-check{width:54px;height:54px}}
@media(max-width:959px){.lk3-challenge-shell,.lk3-cw-shell{width:min(100% - 80px,1360px)}.lk3-challenge-hero-inner,.lk3-cw-hero-inner{grid-template-columns:1fr}.lk3-challenge-hero-copy{padding:52px 0 40px}.lk3-challenge-hero-copy:before{left:0;top:48px;width:46px;height:5px}.lk3-challenge-kicker{padding-top:15px}.lk3-challenge-action-field{width:calc(100% + 80px);margin-left:-40px;margin-right:-40px;padding:18px 40px 28px}.lk3-challenge-action-sheet{min-height:350px}.lk3-cw-hero-copy{padding-top:26px}.lk3-cw-hero-field{min-height:310px;border-left:0}.lk3-cw-guidance-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lk3-cw-guidance-grid>div:nth-child(2){border-right:0}.lk3-challenge-featured-poster{grid-template-columns:1fr}.lk3-challenge-featured-left{min-height:300px;border-right:0;border-bottom:1px solid #3a3a3a}.challenge-grid{grid-template-columns:110px minmax(0,1fr) 72px;padding:34px 0}.lk3-cw-finish-panel{grid-template-columns:1fr}}
@media(max-width:620px){.lk3-challenge-shell,.lk3-cw-shell{width:min(100% - 40px,1360px)}.lk3-challenge-hero-copy{padding:42px 0 30px}.lk3-challenge-hero-copy:before{top:38px}.lk3-challenge-hero h1,.lk3-cw-hero h1{font-size:clamp(39px,10.8vw,47px)}.lk3-challenge-hero-copy>p:not(.lk3-challenge-kicker),.lk3-cw-hero-copy>p:not(.lk3-cw-kicker){font-size:16px}.lk3-challenge-btn{width:100%}.lk3-challenge-action-field{width:calc(100% + 40px);margin-inline:-20px;padding:14px 20px 22px}.lk3-challenge-action-sheet{min-height:285px}.lk3-challenge-action-sheet:before{font-size:120px}.lk3-challenge-resume-rail,.lk3-cw-resume-rail{grid-template-columns:1fr}.lk3-challenge-orientation-grid{grid-template-columns:1fr}.lk3-challenge-rule,.lk3-challenge-rule+.lk3-challenge-rule{padding:22px 0;border-right:0;border-bottom:1px solid var(--lk3-ch-line)}.lk3-challenge-featured-copy{padding:32px 22px 30px}.lk3-challenge-featured-copy h2{font-size:35px}.lk3-challenge-library-head{display:grid;grid-template-columns:1fr}.lk3-challenge-library-head h2{font-size:34px}.lk3-challenge-library-grid{grid-template-columns:1fr}.lk3-challenge-program>a{grid-template-rows:180px 1fr}.lk3-cw-context{padding-top:22px}.lk3-cw-context nav{font-size:14px}.lk3-cw-hero{padding:20px 0 38px}.lk3-cw-hero-copy{padding-top:22px}.lk3-cw-mantra{font-size:18px}.lk3-cw-hero-field{min-height:270px}.lk3-cw-field-number{font-size:118px}.lk3-cw-guidance-grid{grid-template-columns:1fr}.lk3-cw-guidance-grid>div,.lk3-cw-guidance-grid>div+div{padding:18px 0;border-right:0}.challenge-grid{grid-template-columns:72px minmax(0,1fr);gap:22px;padding:28px 0}.challenge-number{font-size:60px}.challenge-body{grid-column:1}.challenge-action{grid-column:2}.challenge-body h2{font-size:30px}.challenge-body p{font-size:16px}.challenge-check{width:52px;height:52px}.lk3-cw-back>div>div{display:grid;gap:12px}}
@media(prefers-reduced-motion:reduce){.challenge-block,.lk3-challenge-btn{transition:none!important;scroll-behavior:auto!important}}

/* QA17 · CMS images occupy the right half through the viewport edge. */
.lk3-challenges-family-body{--lk3-ch-gutter:80px;}
.lk3-challenges-main *,.lk3-challenges-main *::before,.lk3-challenges-main *::after{box-sizing:border-box;}
.lk3-challenge-shell,.lk3-cw-shell{width:min(1360px,calc(100% - var(--lk3-ch-gutter)*2));margin-inline:auto;}
.lk3-challenge-hero-inner,.lk3-cw-hero-inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;align-items:stretch;}
.lk3-challenge-hero-copy{padding:64px 56px 64px 0;}
.lk3-challenge-hero-copy::before,.lk3-challenge-kicker::before{content:none;}
.lk3-challenge-kicker{color:#777168;padding-top:0;}
.lk3-challenge-hero-image,.lk3-cw-hero-image{position:relative;min-height:355px;overflow:hidden;background:#ece7dd;width:calc(100% + max(var(--lk3-ch-gutter),calc((100vw - 1360px)/2)));margin-right:calc(0px - max(var(--lk3-ch-gutter),calc((100vw - 1360px)/2)));}
.lk3-challenge-hero-image img,.lk3-cw-hero-image img{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover;}
.lk3-cw-hero{padding:0;border-bottom:1px solid rgba(21,21,21,.2);}
.lk3-cw-hero-copy{padding:56px 54px 56px 0;}
.lk3-cw-hero-copy::before{content:none;}
.lk3-cw-hero h1{font-size:clamp(54px,5.25vw,78px);line-height:.93;letter-spacing:-.059em;font-weight:900;max-width:880px;}
.lk3-cw-authored{padding-top:40px;}
.lk3-challenges-main .lk3-cw-authored-canvas .challenge-block{display:revert!important;visibility:visible!important;scroll-margin-top:100px;}
.lk3-challenge-controls{margin:0;display:flex;align-items:center;gap:10px;}
.lk3-challenges-main button[data-lk3-challenge-completion]{width:auto;min-height:44px;height:auto;padding:12px 14px;font:inherit;font-size:14px;font-weight:800;line-height:1.4;cursor:pointer;border:1px solid var(--lk3-ch-ink);background:var(--lk3-ch-paper);color:var(--lk3-ch-ink);}
.lk3-challenges-main button[data-lk3-challenge-completion]:hover{background:var(--lk3-ch-ink);color:var(--lk3-ch-paper);}
.lk3-html-challenge-rail{display:flex;flex-wrap:wrap;align-items:center;gap:18px;padding:24px 0;margin-bottom:30px;border-block:1px solid var(--lk3-ch-line);}
.lk3-html-challenge-rail span{margin-right:auto;}
.lk3-html-challenge-rail button{min-height:44px;padding:10px 16px;border:1px solid var(--lk3-ch-ink);background:transparent;font:inherit;font-weight:800;cursor:pointer;}
.lk3-html-challenge-rail button:hover{background:var(--lk3-ch-ink);color:var(--lk3-ch-paper);}
.lk3-html-challenge-rail button:disabled{opacity:.5;cursor:default;}
.lk3-challenges-main [data-challenge-share],.lk3-html-challenge-rail a{min-height:44px;display:inline-flex;align-items:center;}
.lk3-challenges-main [data-challenge-share]:hover,.lk3-html-challenge-rail a:hover,.lk3-challenge-featured-copy a:hover{color:var(--lk3-ch-red);}
.lk3-challenges-main :focus-visible{outline:2px solid currentColor;outline-offset:4px;}
@media(max-width:1450px){.lk3-challenges-family-body{--lk3-ch-gutter:48px;}}
@media(max-width:1199px){.lk3-challenges-family-body{--lk3-ch-gutter:40px;}.lk3-challenge-hero-copy,.lk3-cw-hero-copy{padding-right:36px;}}
@media(max-width:959px){.lk3-challenge-hero-inner,.lk3-cw-hero-inner{grid-template-columns:1fr;}.lk3-challenge-hero-copy,.lk3-cw-hero-copy{padding:52px 0 40px;}.lk3-challenge-hero-image,.lk3-cw-hero-image{width:calc(100% + var(--lk3-ch-gutter)*2);margin-inline:calc(0px - var(--lk3-ch-gutter));min-height:310px;}}
@media(max-width:620px){.lk3-challenges-family-body{--lk3-ch-gutter:20px;}.lk3-challenge-hero-copy,.lk3-cw-hero-copy{padding:42px 0 30px;}.lk3-cw-hero h1{font-size:clamp(39px,10.8vw,47px);}.lk3-challenge-hero-image,.lk3-cw-hero-image{min-height:270px;}}

/* QA18 · Every featured/discovery control keeps a full keyboard/touch target. */
.lk3-challenges-main .lk3-challenge-featured-copy a,.lk3-challenges-main [data-challenge-next],.lk3-challenges-main [data-challenge-random]{min-height:44px;display:inline-flex;align-items:center;}

/* Author layouts may set display:grid; account-hidden panels must stay hidden. */
[data-lk3-challenge-authored-html] [hidden]{display:none!important;}

/* QA20 · Uploaded collection image works in every editorial card variant. */
.lk3-challenge-program-visual--media{position:relative;background:#ece7dd!important;overflow:hidden;}
.lk3-challenge-program-visual--media::before,.lk3-challenge-program-visual--media::after{content:none!important;}
.lk3-challenge-program-visual--media img{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover;}
.lk3-challenge-program>a:hover .lk3-challenge-program-link{color:var(--lk3-ch-red);text-decoration:underline;text-underline-offset:4px;}
.lk3-challenge-program-link{transition:color .18s ease;}

.lk3-challenge-access-note{display:flex;flex-direction:column;gap:7px;font-size:14px;line-height:1.5;}
.lk3-challenge-access-note strong{font-size:14px;letter-spacing:.09em;}

/* QA42: media dimensions depend on the image ratio, never on copy length. */
.lk3-challenge-library-grid .lk3-challenge-program>a{grid-template-rows:auto 1fr}
.lk3-challenge-library-grid .lk3-challenge-program-visual{width:100%;height:auto;min-height:0;aspect-ratio:1670/940;position:relative}
.lk3-challenge-library-grid .lk3-challenge-program-visual::before{content:none}
.lk3-challenge-library-grid .lk3-challenge-program-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* QA49 · Shared content tracks align every sibling card without cutting text. */
@supports(grid-template-rows:subgrid){
 .lk3-challenge-library-grid{row-gap:0;grid-auto-rows:auto;align-items:stretch}
 .lk3-challenge-library-grid .lk3-challenge-program{display:grid;grid-row:span 6;grid-template-rows:subgrid;row-gap:0;margin-bottom:28px;min-height:0;min-width:0}
 .lk3-challenge-library-grid .lk3-challenge-program>a{display:grid;grid-row:span 6;grid-template-rows:subgrid;row-gap:0;height:auto;min-width:0}
 .lk3-challenge-library-grid .lk3-challenge-program-copy{display:grid;grid-row:span 5;grid-template-rows:subgrid;row-gap:0;min-width:0}
 .lk3-challenge-library-grid .lk3-challenge-program-copy>small{margin-bottom:10px}
 .lk3-challenge-library-grid .lk3-challenge-program-title{display:block;min-width:0;overflow-wrap:anywhere}
 .lk3-challenge-library-grid .lk3-challenge-program-copy>p{margin-top:10px;margin-bottom:16px;overflow-wrap:anywhere}
 .lk3-challenge-library-grid .lk3-challenge-program-link{align-self:end;margin-top:0}
}