/* ============================================================
   CAPM Exam Prep — shared stylesheet
   Design system carried over from the original landing page.
============================================================ */
:root{
  --navy:#0C1849;
  --navy-2:#22416F;
  --teal:#74ACBA;
  --teal-soft:#EEF4F6;
  --green:#6BC94D;
  --green-deep:#54A639;
  --white:#FFFFFF;
  --ink:#22416F;
  --ink-soft:#5A6A8B;
  --line:#D7DFE6;
  --shadow:0 10px 30px rgba(12,24,73,.08);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Lora',Georgia,serif;color:var(--navy);margin:0 0 .4em;letter-spacing:-0.01em}
h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.08;font-weight:700}
h2{font-size:clamp(1.8rem,3.5vw,2.6rem);line-height:1.15;font-weight:700;margin-top:0}
h3{font-size:1.25rem;font-weight:700}
h4{font-size:1.05rem;font-weight:700}
p{margin:0 0 1em}
a{color:var(--green-deep);text-decoration:none}
a:hover{color:var(--navy)}
.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:14px 26px;border-radius:999px;font-weight:600;font-size:1rem;border:0;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}
.btn-primary{background:var(--green);color:var(--navy)}
.btn-primary:hover{background:var(--green-deep);color:var(--navy);transform:translateY(-1px);box-shadow:0 12px 30px rgba(107,201,77,.35)}
.btn-outline{background:transparent;color:var(--white);border:1.5px solid rgba(255,255,255,.5)}
.btn-outline:hover{background:rgba(255,255,255,.08);color:var(--white)}
.btn-dark{background:var(--navy);color:var(--white)}
.btn-dark:hover{background:#000;color:var(--white)}

/* Nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;max-width:1180px;margin:0 auto;gap:24px}
.logo{display:flex;align-items:center;gap:12px;font-family:'Lora',serif;font-weight:700;color:var(--navy);font-size:1.2rem;letter-spacing:-.01em}
.logo img{height:34px;width:auto;border-radius:6px;display:block}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:var(--ink);font-weight:500;font-size:.95rem}
.nav-links a:hover{color:var(--navy)}
.nav-links a.active{color:var(--green-deep);font-weight:600}
.nav-cta{padding:10px 18px;font-size:.92rem}

/* dropdown */
.has-drop{position:relative}
.drop-toggle{display:inline-flex;align-items:center;gap:5px;color:var(--ink);font-weight:500;font-size:.95rem;background:none;border:0;cursor:pointer;font-family:inherit;padding:0}
.drop-toggle:hover{color:var(--navy)}
.drop-toggle svg{width:15px;height:15px;transition:transform .2s ease}
.has-drop:hover .drop-toggle svg, .has-drop.open .drop-toggle svg{transform:rotate(180deg)}
.drop-menu{position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(6px);min-width:300px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 50px rgba(12,24,73,.18);padding:8px;opacity:0;visibility:hidden;transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:120}
.has-drop:hover .drop-menu, .has-drop.open .drop-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.drop-menu a{display:flex;gap:12px;align-items:baseline;padding:10px 12px;border-radius:9px;color:var(--ink)}
.drop-menu a:hover{background:var(--teal-soft);color:var(--navy)}
.drop-menu a .dn{font-family:'Lora',serif;font-weight:700;color:var(--green-deep);min-width:20px}
.drop-menu a .dt{font-weight:500;font-size:.95rem}
.drop-menu a .dt small{display:block;color:var(--ink-soft);font-size:.78rem;font-weight:400;margin-top:1px}
@media (max-width:880px){
  .drop-menu{position:static;transform:none;opacity:1;visibility:visible;min-width:0;box-shadow:none;border:0;border-radius:0;padding:0;background:transparent}
  .has-drop:hover .drop-menu,.has-drop.open .drop-menu{transform:none}
  .drop-toggle{padding:12px 24px;width:100%;justify-content:space-between;border-bottom:1px solid var(--line)}
  .drop-menu a{padding-left:38px;border-bottom:1px solid var(--line)}
}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;color:var(--navy)}
@media (max-width:880px){
  .nav-toggle{display:inline-flex}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--white);border-bottom:1px solid var(--line);padding:8px 0;box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 24px;border-bottom:1px solid var(--line)}
  .nav-links a.nav-cta{margin:10px 24px;justify-content:center}
}

/* Generic sections */
section{padding:84px 0}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#E4F4DC;color:var(--green-deep);font-size:.82rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px}
.section-head p{color:var(--ink-soft);font-size:1.08rem}

/* ---------- Module hero band ---------- */
.module-hero{
  position:relative;
  background:radial-gradient(1200px 600px at 80% -10%,rgba(116,172,186,.22),transparent 60%),
             radial-gradient(900px 500px at -10% 130%,rgba(107,201,77,.14),transparent 60%),
             linear-gradient(180deg,#0C1849 0%,#0C1849 75%,#0E1B53 100%);
  color:var(--white);
  padding:64px 0 72px;
  overflow:hidden;
}
.module-hero::before{
  content:"";position:absolute;inset:0;background-image:
    radial-gradient(circle at 25% 15%,rgba(255,255,255,.06) 1px,transparent 1px),
    radial-gradient(circle at 75% 80%,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px,32px 32px;pointer-events:none;
}
.module-hero .container{position:relative}
.module-hero .kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(116,172,186,.18);color:var(--teal);font-size:.82rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px}
.module-hero .kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 12px rgba(107,201,77,.7)}
.module-hero h1{color:var(--white);max-width:880px}
.module-hero p.lede{font-size:1.15rem;color:#CFD7E8;max-width:720px;margin-top:10px}
.module-hero .module-stats{margin-top:26px;display:flex;gap:30px;flex-wrap:wrap}
.module-hero .module-stats .s .n{font-family:'Lora',serif;font-size:1.9rem;font-weight:700;color:var(--white);line-height:1}
.module-hero .module-stats .s .l{font-size:.8rem;color:#9AAACB;text-transform:uppercase;letter-spacing:.08em;margin-top:4px}

/* breadcrumb */
.crumb{font-size:.85rem;color:#9AAACB;margin-bottom:18px}
.crumb a{color:var(--teal)}
.crumb a:hover{color:var(--green)}

/* ---------- Lesson layout ---------- */
.lesson-wrap{display:grid;grid-template-columns:260px 1fr;gap:48px;align-items:start;padding:64px 0}
@media (max-width:980px){ .lesson-wrap{grid-template-columns:1fr;gap:28px} }
.lesson-toc{position:sticky;top:84px}
@media (max-width:980px){ .lesson-toc{position:static} }
.lesson-toc h4{font-family:'Inter',sans-serif;font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-soft);margin-bottom:14px}
.lesson-toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.lesson-toc li{counter-increment:toc;margin-bottom:2px}
.lesson-toc a{display:flex;gap:10px;padding:8px 12px;border-radius:9px;color:var(--ink);font-size:.92rem;font-weight:500;border-left:2px solid transparent}
.lesson-toc a::before{content:counter(toc);color:var(--teal);font-weight:700;font-variant-numeric:tabular-nums;min-width:18px}
.lesson-toc a:hover{background:var(--teal-soft);color:var(--navy)}

.lessons{min-width:0}
.lesson-card{background:var(--white);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:34px 38px;margin-bottom:28px;scroll-margin-top:90px}
@media (max-width:560px){ .lesson-card{padding:26px 22px} }
.lesson-card .l-num{display:inline-block;font-family:'Lora',serif;font-weight:700;color:var(--green-deep);font-size:.85rem;letter-spacing:.08em;text-transform:uppercase}
.lesson-card h2{font-size:1.7rem;margin:6px 0 4px}
.lesson-card .l-task{color:var(--ink-soft);font-size:.95rem;font-style:italic;margin-bottom:18px}
.enablers{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px;padding:18px 0 0;border-top:1px dashed var(--line)}
.enablers .e-label{flex-basis:100%;font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-soft);font-weight:600;margin-bottom:4px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 13px;background:var(--teal-soft);color:var(--navy);border-radius:999px;font-size:.82rem;font-weight:500;border:1px solid #DCE8EC}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex-shrink:0}

/* content blocks within a lesson */
.block{padding-top:22px;margin-top:22px;border-top:1px solid var(--line)}
.block:first-of-type{border-top:0;margin-top:0;padding-top:0}
.block h3{font-size:1.22rem;margin-bottom:.5em;color:var(--navy)}
.block p{color:#3a4a66}
.block ul{margin:0 0 1em;padding-left:0;list-style:none}
.block ul li{position:relative;padding:5px 0 5px 26px;color:#3a4a66}
.block ul li::before{content:"";position:absolute;left:6px;top:13px;width:7px;height:7px;border-radius:50%;background:var(--green)}
.block.key{background:linear-gradient(180deg,#F6FCF1,#FFFFFF 60%);border:1px solid #DCEFD0;border-radius:14px;padding:24px 26px;margin-top:24px}
.block.key::before{content:"Key Topic";display:inline-block;background:var(--green);color:var(--navy);font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 11px;border-radius:999px;margin-bottom:12px}
.block.key h3{margin-top:0}

/* domain intro image */
.domain-intro{margin:0;padding:34px 0 6px}
.domain-intro img{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}

/* lesson figures */
.fig-block h3{font-size:1.1rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.06em;font-family:'Inter',sans-serif;font-weight:600}
.fig-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:6px}
.lesson-fig{margin:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--white)}
.lesson-fig img{width:100%;height:auto;display:block;cursor:zoom-in}
.lesson-fig figcaption{padding:10px 14px;font-size:.85rem;color:var(--ink-soft);border-top:1px solid var(--line);background:var(--teal-soft)}

/* lightbox */
.fig-lightbox{position:fixed;inset:0;background:rgba(6,17,46,.92);display:none;align-items:center;justify-content:center;z-index:9999;padding:24px;cursor:zoom-out}
.fig-lightbox.open{display:flex}
.fig-lightbox img{max-width:96vw;max-height:92vh;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.5)}

/* lesson footer nav */
.lesson-foot{display:flex;justify-content:space-between;gap:14px;margin-top:10px;flex-wrap:wrap}
.lesson-foot a{font-weight:600}

/* ---------- Module index cards (home + overview) ---------- */
.mod-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:880px){ .mod-cards{grid-template-columns:1fr} }
.mod-card{display:block;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;color:inherit}
.mod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--teal)}
.mod-card .m-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.mod-card .m-num{font-family:'Lora',serif;font-size:1.8rem;font-weight:700;color:var(--green-deep)}
.mod-card .m-pct{font-size:.78rem;font-weight:600;color:var(--teal);text-transform:uppercase;letter-spacing:.08em}
.mod-card h3{color:var(--navy);font-size:1.18rem;margin-bottom:6px}
.mod-card p{color:var(--ink-soft);font-size:.93rem;margin:0}
.mod-card .m-meta{margin-top:14px;font-size:.85rem;color:var(--teal);font-weight:600}

/* ---------- About page ---------- */
.about-card{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;background:var(--white);border:1px solid var(--line);border-radius:20px;padding:40px;box-shadow:var(--shadow)}
@media (max-width:820px){ .about-card{grid-template-columns:1fr;text-align:left} }
.about-photo{width:100%;border-radius:18px;display:block;box-shadow:0 18px 50px rgba(12,24,73,.22)}
.instructor-tag{display:inline-block;padding:5px 12px;background:#E4F4DC;color:var(--green-deep);border-radius:999px;font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:10px}
.cred-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
@media (max-width:520px){ .cred-grid{grid-template-columns:1fr} }
.cred{background:var(--teal-soft);border:1px solid #DCE8EC;border-radius:12px;padding:16px}
.cred .n{font-family:'Lora',serif;font-size:1.5rem;font-weight:700;color:var(--navy);line-height:1}
.cred .l{font-size:.85rem;color:var(--ink-soft);margin-top:4px}

/* ---------- Footer ---------- */
footer{background:#06112E;color:#9AAACB;padding:48px 0 32px;margin-top:0}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px}
@media (max-width:780px){ .foot{grid-template-columns:1fr 1fr} }
footer h4{color:var(--white);font-family:'Inter',sans-serif;font-size:.95rem;font-weight:600;margin:0 0 16px;letter-spacing:.04em;text-transform:uppercase}
footer a{color:#9AAACB;display:block;padding:5px 0;font-size:.92rem}
footer a:hover{color:var(--green)}
.foot .logo img{height:30px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:.85rem}

/* utility */
.callout{background:var(--teal-soft);border-left:4px solid var(--teal);border-radius:0 12px 12px 0;padding:18px 22px;margin:0 0 1em}
.callout strong{color:var(--navy)}