:root{
  --ink:#102033;
  --ink-2:#294357;
  --muted:#647586;
  --line:#d9e3e9;
  --wash:#f4f7f9;
  --panel:#ffffff;
  --navy:#10283f;
  --navy-2:#173b59;
  --navy-3:#234f70;
  --teal:#168c8d;
  --teal-soft:#e6f5f3;
  --gold:#c6932f;
  --gold-soft:#fff6df;
  --coral:#d96e5e;
  --coral-soft:#fff0ed;
  --violet:#76569d;
  --violet-soft:#f3eef9;
  --active:#168c8d;
  --active-soft:#e6f5f3;
  --shadow:0 18px 50px rgba(16,40,63,.09);
  --shadow-sm:0 8px 24px rgba(16,40,63,.07);
  --radius:24px;
  --radius-sm:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--wash);
  color:var(--ink);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
button,select{font:inherit}
a{color:inherit}
img,svg{max-width:100%}
button{cursor:pointer}
.shell{width:min(1180px,calc(100% - 36px));margin-inline:auto}
.skip-link{position:absolute;left:-999px;top:8px;background:#fff;color:var(--ink);padding:10px 14px;border-radius:10px;z-index:999}
.skip-link:focus{left:12px}

.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 78% 18%,rgba(115,213,202,.20),transparent 25%),
    radial-gradient(circle at 12% 110%,rgba(242,199,92,.16),transparent 34%),
    linear-gradient(135deg,var(--navy),#163852 58%,#1c4b67);
  color:#fff;
  padding:58px 0 54px;
}
.hero__mesh{position:absolute;inset:0;opacity:.32;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to right,#000,transparent 78%)}
.hero__inner{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);align-items:center;gap:38px}
.eyebrow,.section-kicker{font-size:.76rem;text-transform:uppercase;letter-spacing:.15em;font-weight:800;color:var(--teal)}
.hero .eyebrow{color:#9de3db}
.hero h1{font-size:clamp(2.7rem,5.5vw,5.25rem);line-height:.96;letter-spacing:-.045em;margin:10px 0 20px;max-width:820px}
.hero__lead{font-size:clamp(1.04rem,1.6vw,1.23rem);max-width:760px;color:#dce9ef;margin:0}
.hero__principle{display:flex;gap:12px;align-items:flex-start;margin-top:25px;padding:13px 16px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.07);border-radius:15px;max-width:720px;color:#dce9ef;font-size:.93rem}
.hero__principle strong{color:#fff}
.hero__principle-dot{width:10px;height:10px;border-radius:50%;background:#7ad8cf;margin-top:7px;box-shadow:0 0 0 5px rgba(122,216,207,.12);flex:0 0 auto}
.hero__art{min-width:0}
.hero__art svg{display:block;width:100%;filter:saturate(.96)}

.framework{padding:52px 0 46px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;margin-bottom:24px}
.section-head h2,.evidence h2{font-size:clamp(1.7rem,3vw,2.55rem);line-height:1.08;letter-spacing:-.028em;margin:7px 0 0}
.section-head>p{max-width:500px;color:var(--muted);margin:0;font-size:.97rem}
.challenge-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.challenge-card{
  --c:var(--teal);
  --soft:var(--teal-soft);
  appearance:none;
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:19px;
  min-height:178px;
  padding:17px;
  text-align:left;
  color:var(--ink);
  position:relative;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:0 1px 0 rgba(255,255,255,.9) inset;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.challenge-card::after{content:"";position:absolute;width:104px;height:104px;border-radius:50%;background:var(--soft);right:-38px;top:-36px;opacity:.8}
.challenge-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--c) 48%,var(--line));box-shadow:var(--shadow-sm)}
.challenge-card:focus-visible{outline:3px solid color-mix(in srgb,var(--c) 30%,white);outline-offset:3px}
.challenge-card.is-active{border-color:var(--c);box-shadow:0 10px 30px color-mix(in srgb,var(--c) 12%,transparent);background:linear-gradient(180deg,#fff,var(--soft))}
.challenge-card__top{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1}
.challenge-card__number{font-size:.72rem;font-weight:900;letter-spacing:.08em;color:var(--muted)}
.challenge-card__icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:var(--soft);color:var(--c);border:1px solid color-mix(in srgb,var(--c) 20%,white)}
.challenge-card__icon svg{width:24px;height:24px}
.challenge-card h3{font-size:1rem;line-height:1.16;margin:26px 0 8px;position:relative;z-index:1}
.challenge-card p{font-size:.78rem;line-height:1.45;color:var(--muted);margin:0;position:relative;z-index:1}

.workspace{background:#fff;border-block:1px solid var(--line);padding:44px 0 60px;scroll-margin-top:10px}
.workspace__top{display:flex;justify-content:space-between;gap:28px;align-items:center;margin-bottom:22px}
.module-identity{display:flex;align-items:center;gap:17px;min-width:0}
.module-mark{width:70px;height:70px;border-radius:20px;background:var(--active-soft);color:var(--active);display:grid;place-items:center;flex:0 0 auto;border:1px solid color-mix(in srgb,var(--active) 18%,white)}
.module-mark svg{width:36px;height:36px}
.module-index{font-size:.73rem;text-transform:uppercase;letter-spacing:.13em;font-weight:900;color:var(--active);margin-bottom:4px}
.workspace h2{font-size:clamp(1.8rem,3.2vw,2.75rem);line-height:1.05;letter-spacing:-.03em;margin:0 0 5px}
#moduleStrap{margin:0;color:var(--muted);max-width:760px}
.ghost-button,.print-button{border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 13px;border-radius:12px;font-weight:760;box-shadow:0 1px 0 rgba(255,255,255,.7);white-space:nowrap}
.ghost-button:hover,.print-button:hover{border-color:var(--active);color:var(--active)}

.chooser-grid{display:grid;grid-template-columns:minmax(0,1.42fr) minmax(310px,.58fr);gap:16px;align-items:stretch}
.chooser-card{background:linear-gradient(145deg,#f7fafb,#fff);border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow-sm)}
.chooser-card__label{color:var(--active);text-transform:uppercase;font-size:.72rem;font-weight:900;letter-spacing:.13em}
.chooser-card h3{font-size:1.65rem;letter-spacing:-.02em;margin:6px 0 8px}
.chooser-card p{color:var(--muted);margin:0 0 22px;max-width:760px}
.select-label{display:block;font-size:.76rem;font-weight:850;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-2);margin:0 0 7px}
.select-wrap{position:relative}
.select-wrap select{appearance:none;width:100%;min-height:56px;border:1px solid #cbd8df;border-radius:14px;background:#fff;color:var(--ink);padding:0 48px 0 16px;font-size:1rem;box-shadow:0 4px 14px rgba(16,40,63,.04)}
.select-wrap select:focus{outline:3px solid color-mix(in srgb,var(--active) 18%,white);border-color:var(--active)}
.select-chevron{position:absolute;right:18px;top:50%;transform:translateY(-54%);font-size:1.4rem;color:var(--active);pointer-events:none}

.module-poster{--c:var(--active);--soft:var(--active-soft);border-radius:var(--radius);background:var(--navy);color:#fff;overflow:hidden;position:relative;min-height:235px;padding:22px;display:flex;align-items:flex-end}
.module-poster::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 86% 16%,color-mix(in srgb,var(--c) 34%,transparent),transparent 35%)}
.module-poster__copy{position:relative;z-index:2;max-width:270px}
.module-poster__copy strong{display:block;font-size:1.18rem;line-height:1.12;margin-bottom:6px}
.module-poster__copy span{display:block;color:#cfe0e8;font-size:.82rem;line-height:1.45}
.poster-svg{position:absolute;inset:0;width:100%;height:100%;z-index:1}

.empty-state{display:flex;gap:14px;align-items:flex-start;border:1px dashed #c8d5dc;border-radius:18px;padding:18px 20px;margin-top:18px;color:var(--muted);background:#fbfcfd}
.empty-state__icon{width:36px;height:36px;border-radius:12px;background:var(--active-soft);color:var(--active);display:grid;place-items:center;font-weight:900;flex:0 0 auto}
.empty-state strong{display:block;color:var(--ink);margin:2px 0 2px}
.empty-state p{margin:0}

.result{display:none;margin-top:30px}
.result.is-visible{display:block}
.result-heading{display:flex;gap:20px;align-items:flex-start;justify-content:space-between;margin-bottom:16px}
.result-heading__label{font-size:.72rem;text-transform:uppercase;letter-spacing:.13em;font-weight:900;color:var(--active)}
.result-heading h3{font-size:clamp(1.55rem,2.7vw,2.15rem);line-height:1.13;letter-spacing:-.025em;margin:4px 0 0;max-width:900px}
.print-button{font-size:.85rem;display:flex;gap:7px;align-items:center;margin-top:2px}

.diagnostic-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:16px;align-items:stretch}
.content-card,.vignette-card,.strategies-panel{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px;box-shadow:var(--shadow-sm)}
.content-card--insight{background:linear-gradient(155deg,var(--active-soft),#fff 72%);border-color:color-mix(in srgb,var(--active) 18%,var(--line))}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:13px}
.card-head h4{font-size:1.03rem;margin:0;letter-spacing:-.01em}
.step-num{width:30px;height:30px;border-radius:9px;background:var(--active);color:#fff;display:grid;place-items:center;font-size:.7rem;font-weight:900;letter-spacing:.04em;flex:0 0 auto}
.content-card p,.vignette-card p{margin:0;color:var(--ink-2)}
.vignette-card{background:#fffaf0;border-color:#eadfca}
.vignette-scene{font-size:.98rem}
.cue-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.cue{display:flex;gap:10px;padding:13px;border-radius:14px;background:rgba(255,255,255,.75);border:1px solid rgba(178,149,92,.21);align-items:flex-start}
.cue__icon{width:29px;height:29px;border-radius:9px;display:grid;place-items:center;background:#fff1cf;color:#9e6e18;font-weight:900;flex:0 0 auto}
.cue strong{display:block;font-size:.74rem;text-transform:uppercase;letter-spacing:.07em;color:#8b681f;margin-bottom:3px}
.cue span:last-child{display:block;font-size:.84rem;color:#5e5645;line-height:1.45}

.why-panel{margin-top:16px;border-radius:var(--radius);overflow:hidden;display:grid;grid-template-columns:minmax(0,1.18fr) minmax(300px,.82fr);background:var(--navy);color:#fff;box-shadow:var(--shadow)}
.why-panel__copy{padding:28px 28px 30px}
.why-panel .card-head{margin-bottom:15px}
.why-panel .step-num{background:#fff;color:var(--navy)}
.why-panel .card-head h4{font-size:1.15rem}
.why-panel__copy p{color:#d9e6ec;margin:0 0 13px}
.why-panel__copy p:last-child{margin-bottom:0}
.why-panel__graphic{position:relative;min-height:300px;background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.015));border-left:1px solid rgba(255,255,255,.1);display:grid;place-items:center;padding:20px;overflow:hidden}
.why-panel__graphic svg{width:100%;height:auto;max-height:270px}

.model-panel{margin-top:16px;border-radius:var(--radius);background:linear-gradient(135deg,#173b59,#10283f);color:#fff;padding:27px;overflow:hidden;position:relative}
.model-panel::after{content:"";position:absolute;width:250px;height:250px;border-radius:50%;right:-100px;top:-130px;background:radial-gradient(circle,var(--active),transparent 70%);opacity:.18}
.model-panel__head{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:22px}
.model-panel__head h4{font-size:1.35rem;margin:6px 0 0}
.section-kicker--light{color:#a8e5df}
.model-panel__head p{max-width:475px;color:#c6d9e2;font-size:.85rem;margin:0}
.model-visual{position:relative;z-index:1;min-height:190px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.045);border-radius:19px;padding:24px;display:grid;place-items:center}
.model-visual svg{width:100%;max-width:860px;height:auto}

.strategies-panel{margin-top:16px;padding:28px}
.strategies-panel__head{display:flex;justify-content:space-between;gap:20px;margin-bottom:18px}
.strategies-panel__head p{color:var(--muted);margin:0;max-width:840px}
.strategy-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.strategy-card{position:relative;padding:18px 18px 18px 52px;border:1px solid var(--line);border-radius:16px;background:#fbfcfd;min-height:148px}
.strategy-card__num{position:absolute;left:15px;top:17px;width:25px;height:25px;border-radius:8px;background:var(--active-soft);color:var(--active);display:grid;place-items:center;font-size:.68rem;font-weight:900}
.strategy-card h5{font-size:.94rem;line-height:1.34;margin:0 0 7px;color:var(--ink)}
.strategy-card p{font-size:.83rem;line-height:1.52;margin:0;color:var(--muted)}

.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.action-card{display:flex;gap:15px;padding:22px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
.action-card__icon{width:43px;height:43px;border-radius:14px;display:grid;place-items:center;font-weight:900;font-size:1.1rem;flex:0 0 auto}
.action-card h4{margin:1px 0 7px;font-size:1rem}
.action-card p{margin:0;color:var(--ink-2);font-size:.9rem}
.action-card--try{background:#eef8f4;border-color:#d2e9df}.action-card--try .action-card__icon{background:#d7f0e5;color:#187051}
.action-card--watch{background:#fff2ef;border-color:#f2d3cc}.action-card--watch .action-card__icon{background:#f9dcd5;color:#a84e40}
.meta-panel{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:16px;padding:17px 19px;border-top:1px solid var(--line)}
.tags,.related{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.tag{font-size:.72rem;font-weight:800;padding:6px 9px;border-radius:999px;background:#eef3f6;color:#4d6474}
.related__label{font-size:.75rem;color:var(--muted);margin-right:2px}
.related button{border:0;background:var(--active-soft);color:color-mix(in srgb,var(--active) 80%,#102033);font-size:.74rem;font-weight:800;padding:6px 9px;border-radius:999px}
.related button:hover{text-decoration:underline}

.evidence{display:grid;grid-template-columns:.78fr 1.22fr;align-items:center;gap:48px;padding:66px 0}
.evidence__art{background:linear-gradient(145deg,#eaf4f5,#fff);border:1px solid var(--line);border-radius:30px;padding:35px;box-shadow:var(--shadow-sm)}
.evidence__art svg{display:block;width:100%}
.evidence__copy>p{color:var(--muted);font-size:.97rem}
.evidence-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:20px 0}
.evidence-links a{display:flex;justify-content:space-between;align-items:center;gap:10px;text-decoration:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:11px 13px;font-size:.84rem;font-weight:720;color:var(--ink-2)}
.evidence-links a:hover{border-color:var(--teal);color:var(--teal)}
.evidence-note{font-size:.83rem!important;padding:13px 15px;border-left:3px solid var(--gold);background:var(--gold-soft);border-radius:0 12px 12px 0;color:#66542c!important}

.footer{background:var(--navy);color:#dce8ee;padding:25px 0}
.footer__inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.footer__inner div{display:flex;flex-direction:column;gap:2px}
.footer__inner span{font-size:.8rem;color:#9eb5c1}
.footer__inner a{font-size:.82rem;color:#bfe7e2;text-decoration:none}
.footer__inner a:hover{text-decoration:underline}

@media(max-width:1020px){
  .hero__inner{grid-template-columns:1fr .72fr}.hero h1{font-size:clamp(2.7rem,7vw,4.5rem)}
  .challenge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .challenge-card{min-height:145px}
  .chooser-grid{grid-template-columns:1fr}.module-poster{min-height:220px}
  .why-panel{grid-template-columns:1fr}.why-panel__graphic{border-left:0;border-top:1px solid rgba(255,255,255,.1);min-height:240px}
  .evidence{grid-template-columns:.85fr 1.15fr;gap:30px}
}
@media(max-width:760px){
  .shell{width:min(100% - 26px,1180px)}
  .hero{padding:44px 0 38px}.hero__inner{grid-template-columns:1fr}.hero__art{max-width:480px;margin:0 auto}.hero h1{font-size:clamp(2.5rem,13vw,4rem)}
  .section-head{display:block}.section-head>p{margin-top:10px}
  .workspace__top{align-items:flex-start}.ghost-button{display:none}
  .module-mark{width:58px;height:58px;border-radius:16px}.module-mark svg{width:30px;height:30px}
  .diagnostic-grid,.strategy-grid,.action-grid,.evidence{grid-template-columns:1fr}
  .cue-grid{grid-template-columns:1fr}
  .result-heading{display:block}.print-button{margin-top:12px}
  .model-panel__head{display:block}.model-panel__head p{margin-top:8px}
  .meta-panel{display:block}.related{margin-top:10px}
  .evidence__art{max-width:500px;margin:auto}
  .evidence-links{grid-template-columns:1fr}
}
@media(max-width:520px){
  .challenge-grid{grid-template-columns:1fr}
  .challenge-card{min-height:auto}
  .hero__principle{font-size:.85rem}
  .framework{padding-top:38px}
  .workspace{padding-top:35px}
  .module-identity{align-items:flex-start}
  .chooser-card,.content-card,.vignette-card,.strategies-panel,.model-panel{padding:20px}
  .why-panel__copy{padding:21px}
  .why-panel__graphic{padding:14px}
  .strategy-card{padding-left:48px}
  .footer__inner{display:block}.footer__inner a{display:inline-block;margin-top:10px}
}

@media print{
  body{background:#fff}
  .hero,.framework,.chooser-grid,.empty-state,.evidence,.footer,.ghost-button,.print-button{display:none!important}
  .workspace{border:0;padding:0}.shell{width:100%;max-width:none}.workspace__top{display:block;margin-bottom:18px}.module-mark{display:none}
  .result{display:block!important}.diagnostic-grid,.why-panel,.strategy-grid,.action-grid{grid-template-columns:1fr}.why-panel{background:#fff;color:#000;border:1px solid #bbb;box-shadow:none}.why-panel__copy p{color:#222}.why-panel__graphic,.model-panel{break-inside:avoid}.model-panel{background:#fff;color:#000;border:1px solid #bbb}.model-panel__head p{color:#444}.model-visual{background:#fff;border-color:#bbb}.content-card,.vignette-card,.strategies-panel,.action-card{box-shadow:none;break-inside:avoid}.meta-panel{break-inside:avoid}
}