/* =====================================================================
   DarkControl Certify.

   Tokens, base type, header, footer and buttons are taken verbatim from
   the marketing site so the assessment reads as part of the product.
   Everything below "Certify" is specific to the course ladder, the exam
   runner and the certificate.
   ===================================================================== */

:root {
  --ink:         #101218;
  --body:        #3d4350;
  --muted:       #636a78;
  --faint:       #878d9b;
  --line:        #e8eaee;
  --line-strong: #d7dae1;
  --bg:          #ffffff;
  --bg-soft:     #f7f8f9;
  --crimson:     #a90f2d;
  --crimson-dark:#8c0c25;
  --green:       #15803d;
  --green-soft:  #e9f5ee;
  --amber:       #a16207;
  --amber-soft:  #faf3e3;
  --red:         #b42318;
  --red-soft:    #fdecea;
  --dark:        #101218;
  --dark-2:      #16181f;
  --dark-line:   rgba(255, 255, 255, 0.1);
  --dark-text:   #c2c7d1;
  --dark-muted:  #8d93a1;
  --font:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --container: 1240px;
  --gutter: clamp(20px, 4vw, 44px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; color-scheme: light; }
body {
  font-family: var(--font); font-size: 16px; line-height: 1.6;
  color: var(--body); background: var(--bg);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
html, body { overflow-x: hidden; overflow-x: clip; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); font-size: 0.88em; }
h1, h2, h3 { font-family: var(--display); color: var(--ink); font-weight: 600; }
h4, h5 { color: var(--ink); font-weight: 600; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: -9999px; top: 0; z-index: 200; background: var(--ink); color: #fff; padding: 12px 18px; }
.skip:focus { left: 0; }
:focus-visible { outline: 2px solid var(--crimson); outline-offset: 2px; border-radius: 3px; }

.eyebrow { display: block; font: 600 12px/1.4 var(--font); letter-spacing: 0.11em; text-transform: uppercase; color: var(--faint); }
.section { padding: clamp(56px, 7vw, 96px) 0; }
.section-alt { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font: 500 15px/1 var(--font); padding: 14px 24px; border-radius: 5px;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}
.btn-primary { background: var(--crimson); color: #fff; }
.btn-primary:hover { background: var(--crimson-dark); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-secondary:hover { border-color: var(--ink); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.btn .arrow { transition: transform .16s ease; }
.btn:hover .arrow { transform: translateX(2px); }

/* Header / footer, matching the marketing site */
.site-header { position: sticky; top: 0; z-index: 60; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; gap: 40px; height: 66px; }
.logo { display: flex; align-items: center; gap: 10px; flex: none; }
.logo img { width: 40px; height: 40px; }
.logo .logo-text { font: 600 21px/1 var(--display); color: var(--ink); letter-spacing: -.01em; }
.logo-sep { width: 1px; height: 18px; background: var(--line-strong); margin: 0 2px; }
.logo-kicker { font: 600 11.5px/1 var(--font); letter-spacing: .13em; text-transform: uppercase; color: var(--crimson); padding-top: 1px; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font: 500 14.5px/1 var(--font); color: var(--body); padding: 8px 0; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.nav-cta .btn-primary { padding: 11px 18px; font-size: 14px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; color: var(--ink); padding: 8px; }
.nav-toggle svg { width: 22px; height: 22px; }

.site-footer { background: var(--dark); padding: 72px 0 40px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.site-footer .logo .logo-text { color: #fff; }
.footer-brand p { margin-top: 18px; font-size: 14px; line-height: 1.65; color: var(--dark-muted); max-width: 320px; }
.footer-col h5 { font: 600 11.5px/1.5 var(--font); letter-spacing: .09em; text-transform: uppercase; color: var(--dark-muted); margin-bottom: 18px; }
.footer-col ul { display: grid; gap: 11px; }
.footer-col ul a { font-size: 14px; color: var(--dark-text); }
.footer-col ul a:hover { color: #fff; }
.footer-bottom { margin-top: 56px; padding-top: 26px; border-top: 1px solid var(--dark-line); font-size: 13px; color: var(--dark-muted); display: flex; flex-wrap: wrap; gap: 10px 28px; justify-content: space-between; }

/* =====================================================================
   Certify : catalogue
   ===================================================================== */

.chero { padding: clamp(56px, 7vw, 100px) 0 clamp(28px, 4vw, 48px); position: relative; overflow: hidden; }
.chero > .container { position: relative; }
.chero::before {
  content: ""; position: absolute; top: 50%; right: 0;
  width: clamp(420px, 48vw, 700px); aspect-ratio: 1/1;
  transform: translate(44%, -50%);
  background: url("/assets/img/darkcontrol_logo.png") center / contain no-repeat;
  opacity: .13; pointer-events: none;
  -webkit-mask-image: linear-gradient(to left, #000 35%, transparent 92%);
          mask-image: linear-gradient(to left, #000 35%, transparent 92%);
}
.chero h1 { max-width: 900px; margin-top: 24px; font-size: clamp(34px, 4.6vw, 56px); line-height: 1.06; letter-spacing: -.03em; }
.chero h1 .accent { color: var(--crimson); }
.chero .lead { max-width: 640px; margin-top: 22px; font-size: clamp(16px, 1.7vw, 18px); line-height: 1.62; color: var(--muted); }
.chero-facts { display: flex; flex-wrap: wrap; gap: 10px 30px; margin-top: 30px; font-size: 13.5px; color: var(--faint); }
.chero-facts b { color: var(--ink); font-weight: 600; }

/* Course ladder */
.ladder { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.course { background: #fff; display: grid; grid-template-columns: 74px minmax(0,1fr) 210px; gap: 0; align-items: stretch; }
.course:hover { background: var(--bg-soft); }
.course__n {
  display: grid; place-items: center; border-right: 1px solid var(--line);
  font: 600 22px/1 var(--display); color: var(--line-strong); letter-spacing: -.02em;
}
.course:hover .course__n { color: var(--crimson); }
.course__b { padding: 28px 30px; min-width: 0; }
.course__lvl { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.course__lvl span { font: 600 10.5px/1 var(--font); letter-spacing: .11em; text-transform: uppercase; color: var(--crimson); }
.pips { display: inline-flex; gap: 3px; }
.pips i { width: 14px; height: 3px; border-radius: 2px; background: var(--line-strong); }
.pips i.on { background: var(--crimson); }
.course__t { font-size: 20px; line-height: 1.26; letter-spacing: -.018em; }
.course__d { margin-top: 9px; font-size: 14.5px; line-height: 1.62; color: var(--muted); }
.course__m { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 12.5px; color: var(--faint); font-family: var(--mono); }
.course__a { display: grid; place-items: center; padding: 26px; border-left: 1px solid var(--line); }
.course__a .btn { width: 100%; }

/* Course detail */
.cdetail { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 56px; align-items: start; }
.syllabus { display: grid; gap: 12px; margin-top: 20px; }
.syllabus li { position: relative; padding-left: 26px; font-size: 16px; line-height: 1.68; }
.syllabus li::before { content: ""; position: absolute; left: 4px; top: 10px; width: 7px; height: 7px; border-radius: 50%; background: var(--crimson); }
.startcard { border: 1px solid var(--line-strong); border-radius: 10px; padding: 26px 28px; position: sticky; top: 88px; box-shadow: 0 1px 2px rgba(16,18,24,.04), 0 18px 44px -20px rgba(16,18,24,.14); }
.startcard h3 { font-size: 17px; letter-spacing: -.012em; }
.startcard dl { margin: 18px 0 22px; display: grid; gap: 11px; }
.startcard .rw { display: flex; justify-content: space-between; gap: 14px; font-size: 14px; padding-bottom: 11px; border-bottom: 1px solid var(--line); }
.startcard .rw:last-child { border-bottom: 0; padding-bottom: 0; }
.startcard dt { color: var(--muted); }
.startcard dd { color: var(--ink); font-weight: 500; font-family: var(--mono); font-size: 13px; }
.startcard .btn { width: 100%; }
.startcard .note { margin-top: 14px; font-size: 12.5px; line-height: 1.55; color: var(--faint); }

/* =====================================================================
   Certify : the exam runner
   ===================================================================== */

.exam { padding: 34px 0 0; }
.exambar {
  position: sticky; top: 66px; z-index: 50; background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); padding: 14px 0;
}
.exambar__in { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.exambar__t { font: 600 15px/1.2 var(--display); color: var(--ink); }
.exambar__s { font-size: 13px; color: var(--muted); }
.exambar__sp { flex: 1; }
.timer { font-family: var(--mono); font-size: 14px; color: var(--ink); padding: 7px 13px; border: 1px solid var(--line-strong); border-radius: 999px; }
.timer.warn { color: var(--amber); border-color: var(--amber); }
.timer.crit { color: var(--crimson); border-color: var(--crimson); }
.pbar { height: 3px; background: var(--line); border-radius: 2px; overflow: hidden; margin-top: 12px; }
.pbar i { display: block; height: 100%; background: var(--crimson); width: 0; transition: width .25s ease; }

.qwrap { max-width: 780px; margin: 0 auto; padding: 40px 0 0; }
.q { padding: 34px 0; border-bottom: 1px solid var(--line); }
.q:last-of-type { border-bottom: 0; }
.q__n { font: 600 11.5px/1 var(--font); letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
.q__n .multi { color: var(--crimson); margin-left: 8px; }
.q__p { margin-top: 14px; font-size: 18.5px; line-height: 1.55; color: var(--ink); font-family: var(--display); font-weight: 500; letter-spacing: -.012em; }
.opts { display: grid; gap: 9px; margin-top: 22px; }
.opt {
  display: flex; gap: 13px; align-items: flex-start; cursor: pointer;
  padding: 15px 17px; border: 1px solid var(--line-strong); border-radius: 8px;
  transition: border-color .14s ease, background .14s ease;
}
.opt:hover { border-color: var(--ink); }
.opt input { margin-top: 3px; accent-color: var(--crimson); flex: none; width: 17px; height: 17px; }
.opt span { font-size: 15.5px; line-height: 1.58; }
.opt.is-on { border-color: var(--crimson); background: #fdf7f8; }

.examfoot { max-width: 780px; margin: 0 auto; padding: 34px 0 20px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.examfoot .left { flex: 1; font-size: 13.5px; color: var(--muted); }
.unanswered { color: var(--crimson); font-weight: 500; }

/* =====================================================================
   Certify : results
   ===================================================================== */

.verdict { text-align: center; padding: clamp(44px, 6vw, 76px) 0 0; }
.score {
  width: 168px; height: 168px; margin: 0 auto 26px; border-radius: 50%;
  display: grid; place-items: center; position: relative;
  border: 3px solid var(--line);
}
.score.pass { border-color: var(--green); background: var(--green-soft); }
.score.fail { border-color: var(--crimson); background: var(--red-soft); }
.score b { font: 600 44px/1 var(--display); letter-spacing: -.03em; color: var(--ink); }
.score i { font-style: normal; font-size: 12px; color: var(--muted); font-family: var(--mono); margin-top: 4px; }
.verdict h1 { font-size: clamp(28px, 3.6vw, 42px); letter-spacing: -.028em; }
.verdict .sub { margin-top: 14px; font-size: 17px; color: var(--muted); max-width: 560px; margin-left: auto; margin-right: auto; }
.vstats { display: flex; justify-content: center; flex-wrap: wrap; gap: 0; margin: 34px auto 0; max-width: 700px; border: 1px solid var(--line); }
.vstat { flex: 1; min-width: 150px; padding: 20px 18px; border-right: 1px solid var(--line); }
.vstat:last-child { border-right: 0; }
.vstat .l { font: 600 10.5px/1 var(--font); letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }
.vstat .v { margin-top: 9px; font: 600 24px/1 var(--display); color: var(--ink); letter-spacing: -.02em; }

/* Name form */
.namecard { max-width: 560px; margin: 44px auto 0; padding: 30px 32px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--bg-soft); }
.namecard h2 { font-size: 21px; letter-spacing: -.018em; }
.namecard p { margin-top: 10px; font-size: 14.5px; color: var(--muted); line-height: 1.6; }
.namerow { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.namerow input { flex: 1; min-width: 220px; font: 400 16px/1 var(--font); color: var(--ink); background: #fff; border: 1px solid var(--line-strong); border-radius: 6px; padding: 15px 16px; }
.namerow input:focus { outline: none; border-color: var(--ink); }
.err { margin-top: 12px; font-size: 13.5px; color: var(--crimson); }

/* Review */
.review { max-width: 780px; margin: 64px auto 0; }
.review h2 { font-size: 24px; letter-spacing: -.02em; margin-bottom: 6px; }
.review > p { font-size: 14.5px; color: var(--muted); margin-bottom: 26px; }
.rq { padding: 24px 0; border-top: 1px solid var(--line); }
.rq__h { display: flex; gap: 12px; align-items: flex-start; }
.rq__i { flex: none; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 600; margin-top: 2px; }
.rq__i.ok { background: var(--green-soft); color: var(--green); }
.rq__i.no { background: var(--red-soft); color: var(--crimson); }
.rq__p { font-size: 16.5px; line-height: 1.55; color: var(--ink); font-weight: 500; }
.rq__o { margin: 14px 0 0 34px; display: grid; gap: 7px; }
.rq__o li { font-size: 14.5px; line-height: 1.55; padding: 8px 12px; border-radius: 6px; border: 1px solid var(--line); color: var(--muted); }
.rq__o li.correct { border-color: var(--green); background: var(--green-soft); color: var(--ink); }
.rq__o li.picked-wrong { border-color: var(--crimson); background: var(--red-soft); color: var(--ink); }
.rq__o .tick { font-family: var(--mono); font-size: 11px; margin-right: 8px; }
.rq__x { margin: 14px 0 0 34px; font-size: 14px; line-height: 1.62; color: var(--body); padding: 12px 14px; background: var(--bg-soft); border-left: 2px solid var(--crimson); }

/* =====================================================================
   Certify : certificate page
   ===================================================================== */

.cert-wrap { max-width: 860px; margin: 0 auto; }
.certpanel {
  border: 1px solid var(--line-strong); border-radius: 12px; overflow: hidden;
  box-shadow: 0 1px 2px rgba(16,18,24,.04), 0 24px 60px -24px rgba(16,18,24,.22);
}
.certpanel__top { background: var(--dark); padding: 34px 38px; text-align: center; }
.certpanel__top .k { font: 600 10.5px/1 var(--font); letter-spacing: .22em; text-transform: uppercase; color: var(--dark-muted); }
.certpanel__top h1 { margin-top: 16px; font-size: clamp(26px, 3.4vw, 38px); color: #fff; letter-spacing: -.028em; line-height: 1.1; }
.certpanel__top .who { margin-top: 8px; font-size: 15px; color: var(--dark-text); }
.certpanel__b { padding: 32px 38px 36px; }
.certgrid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.certgrid div { padding: 18px 16px; border-right: 1px solid var(--line); }
.certgrid div:last-child { border-right: 0; }
.certgrid .l { font: 600 10px/1 var(--font); letter-spacing: .13em; text-transform: uppercase; color: var(--faint); }
.certgrid .v { margin-top: 9px; font: 500 15px/1.2 var(--mono); color: var(--ink); word-break: break-all; }
.certacts { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.share-x, .share-li {
  display: inline-flex; align-items: center; gap: 10px; padding: 13px 20px;
  border-radius: 5px; font: 500 14.5px/1 var(--font); color: #fff;
}
.share-x  { background: #101218; } .share-x:hover  { background: #000; }
.share-li { background: #0a66c2; } .share-li:hover { background: #084e96; }
.share-x svg, .share-li svg { width: 16px; height: 16px; fill: currentColor; }

/* Verify */
.verifyform { max-width: 520px; margin-top: 26px; display: flex; gap: 10px; flex-wrap: wrap; }
.verifyform input { flex: 1; min-width: 220px; font: 400 16px/1 var(--mono); text-transform: uppercase; color: var(--ink); background: #fff; border: 1px solid var(--line-strong); border-radius: 6px; padding: 15px 16px; }
.verifyform input:focus { outline: none; border-color: var(--ink); }
.vresult { max-width: 640px; margin-top: 34px; padding: 26px 28px; border-radius: 10px; border: 1px solid var(--line-strong); }
.vresult.good { border-color: var(--green); background: var(--green-soft); }
.vresult.bad  { border-color: var(--crimson); background: var(--red-soft); }
.vresult h2 { font-size: 20px; letter-spacing: -.016em; }
.vresult p { margin-top: 10px; font-size: 15px; line-height: 1.62; }
.vresult dl { margin-top: 18px; display: grid; gap: 9px; }
.vresult .rw { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; }
.vresult dt { color: var(--muted); } .vresult dd { color: var(--ink); font-family: var(--mono); font-size: 13px; }

.err-h { margin-top: 16px; font-size: clamp(32px, 4vw, 48px); letter-spacing: -.03em; }
.err-p { margin-top: 14px; font-size: 17px; color: var(--muted); }
.notice { padding: 16px 20px; border-radius: 8px; background: var(--amber-soft); border: 1px solid rgba(161,98,7,.28); color: var(--ink); font-size: 14.5px; line-height: 1.6; }

/* ---- Responsive ---------------------------------------------------- */
@media (max-width: 960px) {
  .nav { gap: 16px; }
  .nav-toggle { display: block; }
  .nav-links { position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line); display: none; }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 13px var(--gutter); font-size: 16px; }
  .cdetail { grid-template-columns: 1fr; gap: 34px; }
  .startcard { position: static; }
}
@media (max-width: 760px) {
  .course { grid-template-columns: 54px minmax(0,1fr); }
  .course__a { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--line); padding: 18px 24px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .certgrid { grid-template-columns: repeat(2, 1fr); }
  .certgrid div:nth-child(2) { border-right: 0; }
  .certgrid div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .certpanel__top, .certpanel__b { padding-left: 24px; padding-right: 24px; }
  .vstat { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .pbar i, .btn .arrow { transition: none; }
}
@media print {
  .site-header, .site-footer, .certacts, .skip, .exambar { display: none; }
}