/* SEOcourse Academy — course app. Base design: client-approved preview (tokens + components). */
html.sca-html,.sca{
  --bg:#F5F7FB; --surface:#FFFFFF; --surface-2:#F0F4FA; --ink:#0B1F44; --text:#334155; --muted:#64748B; --line:#E3E8F0;
  --blue:#1A73E8; --blue-ink:#1558B0; --blue-soft:#E8F0FE;
  --red:#D93025; --red-soft:#FDECEA; --yellow:#E37400; --yellow-bar:#FBBC04; --yellow-soft:#FEF7E0; --green:#188038; --green-bar:#34A853; --green-soft:#E6F4EA;
  --purple:#7C3AED; --purple-soft:#F1EAFE; --teal:#0F766E; --teal-soft:#E0F5F2;
  --logo-bg:transparent; --shadow:0 1px 2px rgba(11,31,68,.06),0 8px 24px -12px rgba(11,31,68,.18);
  --sans:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',sans-serif; --mono:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){html.sca-html:not([data-theme="light"]),html.sca-html:not([data-theme="light"]) .sca{
  color-scheme:dark; --bg:#08111F; --surface:#0F1B30; --surface-2:#15243E; --ink:#EAF0FA; --text:#C4CEDD; --muted:#8A98AE; --line:#223252;
  --blue:#6AA5FF; --blue-ink:#9CC2FF; --blue-soft:#15294A; --red:#FF7B72; --red-soft:#3A1A1C; --yellow:#FFB84D; --yellow-soft:#35280F; --green:#57C27A; --green-soft:#12301E;
  --purple:#B794F6; --purple-soft:#2A1F45; --teal:#4FD1C5; --teal-soft:#0F2E2C;
  --logo-bg:#FFFFFF; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -14px rgba(0,0,0,.6);}}
html.sca-html[data-theme="dark"],html.sca-html[data-theme="dark"] .sca{
  color-scheme:dark; --bg:#08111F; --surface:#0F1B30; --surface-2:#15243E; --ink:#EAF0FA; --text:#C4CEDD; --muted:#8A98AE; --line:#223252;
  --blue:#6AA5FF; --blue-ink:#9CC2FF; --blue-soft:#15294A; --red:#FF7B72; --red-soft:#3A1A1C; --yellow:#FFB84D; --yellow-soft:#35280F; --green:#57C27A; --green-soft:#12301E;
  --purple:#B794F6; --purple-soft:#2A1F45; --teal:#4FD1C5; --teal-soft:#0F2E2C;
  --logo-bg:#FFFFFF; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -14px rgba(0,0,0,.6);}

html.sca-html{background:var(--bg);scroll-behavior:smooth}
body.sca-body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font:400 15.5px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
.sca,.sca *{box-sizing:border-box}
.sca{color:var(--text);font:400 15.5px/1.65 var(--sans);background:var(--bg);min-height:100vh}
.sca h1,.sca h2,.sca h3,.sca h4{color:var(--ink);text-wrap:balance;margin:0;letter-spacing:-.01em;font-family:var(--sans)}
.sca p{margin:0}
.sca img{max-width:100%}
.sca button{font:inherit;cursor:pointer}
.sca button:focus-visible,.sca input:focus-visible,.sca select:focus-visible,.sca textarea:focus-visible,.sca a:focus-visible,.sca [tabindex]:focus-visible{outline:3px solid color-mix(in srgb,var(--blue) 45%,transparent);outline-offset:2px}
.sca a{color:var(--blue)}
.sca .mono{font-family:var(--mono);font-size:.86em}
.sca .sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.sca [hidden]{display:none!important}

/* top bar */
.sca .top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--surface);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:20px;padding:10px 20px}
body.admin-bar .sca .top{top:32px}
@media (max-width:782px){body.admin-bar .sca .top{top:0}}
.sca .logo{display:flex;align-items:center;background:var(--logo-bg);border-radius:10px;padding:4px 8px;flex:none}
.sca .logo img{height:38px;width:auto;display:block}
.sca .top .course{font-weight:700;color:var(--ink);font-size:14px;line-height:1.3}
.sca .top .course small{display:block;color:var(--muted);font-weight:500;font-size:12px}
.sca .top .spacer{flex:1}
.sca .prog{display:flex;align-items:center;gap:10px;min-width:180px}
.sca .prog .bar{flex:1;height:8px;background:var(--surface-2);border-radius:99px;overflow:hidden;border:1px solid var(--line)}
.sca .prog .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--green-bar));border-radius:99px;transition:width .5s}
.sca .prog b{font-size:13px;color:var(--ink);font-variant-numeric:tabular-nums;min-width:34px;text-align:right}
.sca .who{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink);background:var(--surface-2);border:1px solid var(--line);border-radius:99px;padding:5px 12px 5px 5px;white-space:nowrap}
.sca .who .av{width:26px;height:26px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:12px}
.sca .menuwrap{position:relative}
.sca .menu{position:absolute;right:0;top:calc(100% + 8px);min-width:220px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;display:flex;flex-direction:column;z-index:30}
.sca .menu a,.sca .menu button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;background:none;color:var(--ink);font-size:14px;font-weight:600;padding:9px 10px;border-radius:8px;text-decoration:none}
.sca .menu a:hover,.sca .menu button:hover{background:var(--surface-2)}
.sca .menu hr{border:0;border-top:1px solid var(--line);margin:4px 0}
.sca .iconbtn{border:1px solid var(--line);background:var(--surface-2);color:var(--ink);width:36px;height:36px;border-radius:50%;display:grid;place-items:center;flex:none}
.sca .iconbtn:hover{border-color:var(--blue)}

/* boot / loading / error */
.sca .sca-boot{display:flex;align-items:center;justify-content:center;gap:12px;padding:80px 20px;color:var(--muted);font-weight:600}
.sca .spin{width:22px;height:22px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--blue);animation:sca-spin .8s linear infinite;flex:none}
@keyframes sca-spin{to{transform:rotate(360deg)}}
.sca .loading{display:flex;align-items:center;gap:12px;color:var(--muted);font-weight:600;padding:40px 8px}
.sca .errorbox{background:var(--red-soft);border-radius:14px;padding:18px 20px;display:flex;flex-direction:column;gap:10px;color:var(--ink)}
.sca .errorbox strong{color:var(--red)}

/* shell */
.sca .shell{display:grid;grid-template-columns:300px minmax(0,1fr);max-width:1320px;margin:0 auto;gap:28px;padding:24px 20px 60px}
.sca .side{position:sticky;top:84px;align-self:start;max-height:calc(100vh - 100px);overflow:auto;display:flex;flex-direction:column;gap:14px}
body.admin-bar .sca .side{top:116px;max-height:calc(100vh - 132px)}
.sca .card{background:var(--surface);border:1px solid var(--line);border-radius:14px}
.sca .statcard{padding:16px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sca .stat{background:var(--surface-2);border-radius:10px;padding:10px 12px}
.sca .stat span{display:block;font-size:11.5px;color:var(--muted);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.sca .stat b{font-size:18px;color:var(--ink);font-variant-numeric:tabular-nums}
.sca .stat.full{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:8px}
.sca .pill{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;border-radius:99px;padding:3px 10px;white-space:nowrap}
.sca .pill.locked{background:var(--surface-2);color:var(--muted);border:1px solid var(--line)}
.sca .pill.ok{background:var(--green-soft);color:var(--green)}
.sca .pill.warn{background:var(--yellow-soft);color:var(--yellow)}
.sca .pill.blue{background:var(--blue-soft);color:var(--blue)}
.sca .pill.bad{background:var(--red-soft);color:var(--red)}
.sca .pill svg{width:12px;height:12px}

.sca .modlist{padding:8px}
.sca .modlist h4{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:8px 10px 6px}
.sca .mod{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;background:none;padding:9px 10px;border-radius:10px;color:var(--text);font-size:14px;text-decoration:none}
.sca .mod .n{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700;background:var(--surface-2);color:var(--muted);border:1px solid var(--line);font-variant-numeric:tabular-nums}
.sca .mod .t{flex:1;line-height:1.3}
.sca .mod .lk{color:var(--muted);flex:none;display:grid;place-items:center}
.sca .mod .lk svg{width:14px;height:14px}
.sca .mod.active{background:var(--blue-soft);color:var(--ink);font-weight:700}
.sca .mod.active .n{background:var(--blue);color:#fff;border-color:var(--blue)}
.sca .mod.passed .n{background:var(--green-bar);color:#fff;border-color:var(--green-bar)}
.sca .mod.is-locked{opacity:.62;cursor:not-allowed}
.sca .mod.final .n{background:var(--yellow-soft);color:var(--yellow);border-color:transparent}
.sca .mod.final.passed .n{background:var(--green-bar);color:#fff}
.sca .mod.gl .n{background:var(--surface-2);color:var(--blue)}
.sca .lessons{margin:2px 0 8px 22px;border-left:2px solid var(--line);padding-left:12px;display:flex;flex-direction:column;gap:2px}
.sca .les{display:flex;align-items:center;gap:9px;border:0;background:none;text-align:left;padding:7px 8px;border-radius:8px;font-size:13.5px;color:var(--text);width:100%;text-decoration:none;line-height:1.35}
.sca .les .dot{flex:none;width:18px;height:18px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;font-size:10px;color:#fff}
.sca .les .dot svg{width:10px;height:10px}
.sca .les.done .dot{background:var(--green-bar);border-color:var(--green-bar)}
.sca .les.current{background:var(--surface-2);color:var(--ink);font-weight:700}
.sca .les.current .dot{border-color:var(--blue)}
.sca .les.current.done .dot{border-color:var(--green-bar)}
.sca .les.quiz .dot{border-radius:5px}
.sca .les.is-locked{opacity:.6}
.sca .les:hover,.sca .mod:not(.is-locked):hover{background:var(--surface-2)}
.sca .mod.active:hover{background:var(--blue-soft)}

/* main */
.sca main{min-width:0;display:flex;flex-direction:column;gap:22px}
.sca main:focus,.sca h1[tabindex="-1"]:focus,.sca .result[tabindex="-1"]:focus{outline:none}
.sca .crumbs{font-size:13px;color:var(--muted);font-weight:600;display:flex;gap:8px;flex-wrap:wrap}
.sca .crumbs a{color:var(--muted);text-decoration:none}
.sca .crumbs a:hover{color:var(--blue)}
.sca .lhead{display:flex;flex-direction:column;gap:12px}
.sca .lhead h1{font-size:clamp(28px,3.4vw,38px);line-height:1.12;font-weight:800}
.sca .meta{display:flex;gap:8px;flex-wrap:wrap}
.sca .panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:26px 28px;display:flex;flex-direction:column;gap:14px;min-width:0}
.sca .panel > h2{font-size:21px;font-weight:800;display:flex;align-items:center;gap:10px}
.sca .panel > h2 .ico{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex:none;font-size:15px}
.sca .ico.i-blue{background:var(--blue-soft);color:var(--blue)}
.sca .ico.i-yellow{background:var(--yellow-soft);color:var(--yellow)}
.sca .ico.i-green{background:var(--green-soft);color:var(--green)}
.sca .ico.i-red{background:var(--red-soft);color:var(--red)}
.sca .ico.i-purple{background:var(--purple-soft);color:var(--purple)}
.sca .prose{max-width:72ch}
.sca .prose > * + *{margin-top:12px}
.sca .prose ul,.sca .prose ol,.sca .rich ul,.sca .rich ol{margin:0;padding-left:1.35em}
.sca .prose li + li,.sca .rich li + li{margin-top:6px}
.sca .prose li::marker{color:var(--muted)}
.sca .prose strong{color:var(--ink)}
.sca .prose h3{font-size:17px;margin-top:4px}
.sca .prose h4{font-size:15px}
.sca .prose table,.sca .rich table{border-collapse:collapse;width:100%;font-size:14px;display:block;overflow-x:auto}
.sca .prose th,.sca .prose td,.sca .rich th,.sca .rich td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.sca .prose th,.sca .rich th{background:var(--surface-2);color:var(--ink)}
.sca .rich{min-width:0}
.sca .rich > * + *{margin-top:10px}
.sca .learn-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;list-style:none;padding:0;margin:0}
.sca .learn-list li{display:flex;gap:10px;background:var(--surface-2);border-radius:10px;padding:10px 12px;font-size:14.5px;line-height:1.45}
.sca .learn-list li::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--blue);margin-top:7px}

/* inline code + code blocks */
.sca :not(pre) > code{font-family:var(--mono);font-size:.84em;background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:var(--ink);word-break:break-word}
.sca .codewrap{position:relative;min-width:0}
.sca pre{margin:0;background:#0B1F44;color:#E6EDF7;border-radius:12px;padding:16px 18px;overflow-x:auto;font:500 13px/1.6 var(--mono);tab-size:2;max-width:100%}
html.sca-html[data-theme="dark"] .sca pre{background:#050B16;border:1px solid var(--line)}
@media (prefers-color-scheme:dark){html.sca-html:not([data-theme="light"]) .sca pre{background:#050B16;border:1px solid var(--line)}}
.sca pre code{font:inherit;background:none;border:0;padding:0;color:inherit;white-space:pre}
.sca .copybtn{position:absolute;top:8px;right:8px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#E6EDF7;font-size:12px;font-weight:700;border-radius:7px;padding:4px 10px}
.sca .copybtn:hover{background:rgba(255,255,255,.18)}

/* claim tags */
.sca .tag{display:inline-flex;align-items:center;font-size:10.5px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;border-radius:99px;padding:1px 8px;margin:0 3px;vertical-align:.12em;line-height:1.6;white-space:nowrap;border:1px solid transparent;font-family:var(--sans)}
.sca .tag.official{background:var(--blue-soft);color:var(--blue);border-color:color-mix(in srgb,var(--blue) 25%,transparent)}
.sca .tag.practice{background:var(--green-soft);color:var(--green);border-color:color-mix(in srgb,var(--green) 25%,transparent)}
.sca .tag.observed{background:var(--yellow-soft);color:var(--yellow);border-color:color-mix(in srgb,var(--yellow) 25%,transparent)}
.sca .tag.course{background:var(--surface-2);color:var(--ink);border-color:var(--line)}
.sca .tag.emerging{background:var(--purple-soft);color:var(--purple);border-color:color-mix(in srgb,var(--purple) 25%,transparent)}
.sca .tag.experimental{background:var(--red-soft);color:var(--red);border-color:color-mix(in srgb,var(--red) 25%,transparent)}
.sca .taglegend{display:flex;flex-wrap:wrap;gap:6px 4px;font-size:12.5px;color:var(--muted);align-items:center}

/* figure + lightbox + video */
.sca .fig{margin:0;display:flex;flex-direction:column;gap:10px}
.sca .fig button.zoom{border:1px solid var(--line);background:#fff;border-radius:12px;padding:0;overflow:hidden;cursor:zoom-in;display:block;width:100%}
.sca .fig img{display:block;width:100%;height:auto;aspect-ratio:2/1;object-fit:contain;background:#fff}
.sca .fig figcaption{font-size:13.5px;color:var(--muted);display:flex;gap:8px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.sca-lightbox{border:0;padding:0;background:transparent;max-width:min(1200px,96vw);width:96vw}
.sca-lightbox::backdrop{background:rgba(5,11,22,.82)}
.sca-lightbox .lb{position:relative;background:#fff;border-radius:14px;padding:12px}
.sca-lightbox img{display:block;width:100%;height:auto;max-height:84vh;object-fit:contain}
.sca-lightbox p{font:500 14px/1.5 'Plus Jakarta Sans',system-ui,sans-serif;color:#334155;margin:8px 4px 2px}
.sca-lightbox .close{position:absolute;top:-14px;right:-10px;width:38px;height:38px;border-radius:50%;border:0;background:#0B1F44;color:#fff;font:700 18px/1 system-ui,sans-serif;cursor:pointer}
.sca-lightbox .close:focus-visible{outline:3px solid #6AA5FF;outline-offset:2px}
.sca .video{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000}
.sca .video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* pipeline (step-by-step training) */
.sca .pipe{display:grid;grid-template-columns:repeat(var(--cols,5),minmax(0,1fr));gap:0;margin-top:4px}
.sca .stage{position:relative;border:0;background:var(--surface-2);color:var(--ink);padding:14px 12px 12px;text-align:left;font-weight:700;font-size:14px;border-radius:0;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:4px;min-height:84px;line-height:1.3}
.sca .stage:first-child{border-radius:12px 0 0 12px}.sca .stage:last-child{border-radius:0 12px 12px 0;border-right:0}
.sca .stage span{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sca .stage[aria-selected="true"]{background:var(--ink);color:var(--bg)}
.sca .stage[aria-selected="true"] span{color:color-mix(in srgb,var(--bg) 72%,transparent)}
.sca .stage::after{content:"";position:absolute;right:-7px;top:50%;width:12px;height:12px;background:inherit;transform:translateY(-50%) rotate(45deg);z-index:1;border-top:1px solid var(--line);border-right:1px solid var(--line)}
.sca .stage:last-child::after{display:none}
.sca .pipe.multi{gap:6px}
.sca .pipe.multi .stage,.sca .pipe.multi .stage:first-child,.sca .pipe.multi .stage:last-child{border-radius:10px;border-right:0}
.sca .pipe.multi .stage::after{display:none}
.sca .stage-detail{border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.sca .stage-detail > * + *{margin-top:10px}
.sca .stage-detail h4{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sca .stage-detail .rich{font-size:15px}
.sca .pipe-tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.sca .linkbtn{border:0;background:none;color:var(--blue);font-weight:700;font-size:14px;padding:4px 0;text-decoration:underline;text-underline-offset:3px}
.sca .steplist{margin:0;padding-left:1.4em;display:flex;flex-direction:column;gap:10px}
.sca .neq{font-family:var(--mono);font-size:13.5px;background:var(--surface-2);border:1px dashed var(--line);border-radius:10px;padding:12px 14px;color:var(--ink);text-align:center;overflow-x:auto;white-space:nowrap}
.sca .neq b{color:var(--red)}

/* concepts */
.sca .concepts{display:flex;flex-direction:column;gap:16px}
.sca .concept{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface)}
.sca .concept > h3{font-size:17px;padding:14px 18px 0;display:flex;gap:10px;align-items:baseline}
.sca .concept > h3 .cn{font-family:var(--mono);font-size:12px;color:var(--muted);font-weight:500}
.sca .ctabs{display:flex;gap:4px;overflow-x:auto;padding:12px 14px 0;border-bottom:1px solid var(--line);scrollbar-width:thin}
.sca .ctab{flex:none;border:0;background:none;color:var(--muted);font-weight:700;font-size:13px;padding:8px 11px;border-radius:9px 9px 0 0;border-bottom:3px solid transparent;margin-bottom:-1px;white-space:nowrap}
.sca .ctab:hover{color:var(--ink);background:var(--surface-2)}
.sca .ctab[aria-selected="true"]{color:var(--blue);border-bottom-color:var(--blue);background:var(--blue-soft)}
.sca .ctab.never[aria-selected="true"]{color:var(--red);border-bottom-color:var(--red);background:var(--red-soft)}
.sca .ctab.pro[aria-selected="true"]{color:var(--yellow);border-bottom-color:var(--yellow-bar);background:var(--yellow-soft)}
.sca .ctab.example[aria-selected="true"]{color:var(--green);border-bottom-color:var(--green-bar);background:var(--green-soft)}
.sca .cpanel{padding:16px 18px 18px;font-size:15px}
.sca .cpanel .rich{max-width:72ch}

/* examples */
.sca .ex-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.sca .ex{border-radius:12px;padding:16px 18px;display:flex;flex-direction:column;gap:8px;border:1px solid;min-width:0}
.sca .ex h3{font-size:15px;display:flex;align-items:center;gap:8px}
.sca .ex.good{background:var(--green-soft);border-color:color-mix(in srgb,var(--green) 30%,transparent)}
.sca .ex.good h3{color:var(--green)}
.sca .ex.bad{background:var(--red-soft);border-color:color-mix(in srgb,var(--red) 30%,transparent)}
.sca .ex.bad h3{color:var(--red)}
.sca .ex .exbody{font-size:14.5px;color:var(--ink);line-height:1.55;min-width:0}
.sca .ex .exbody > * + *{margin-top:8px}
.sca .ex .exnote{font-size:13.5px;border-top:1px dashed color-mix(in srgb,var(--ink) 18%,transparent);padding-top:8px}
.sca .reveal{align-self:flex-start;border:1.5px solid var(--blue);color:var(--blue);background:var(--surface);border-radius:9px;padding:9px 16px;font-weight:700;font-size:14px;display:inline-flex;gap:8px;align-items:center;text-transform:uppercase;letter-spacing:.03em}
.sca .reveal:hover{background:var(--blue-soft)}
.sca .exmore{background:var(--surface-2);border-radius:12px;padding:16px 18px}

/* callouts */
.sca .callout{border-radius:14px;padding:18px 20px;display:flex;gap:14px;align-items:flex-start}
.sca .callout .badge{flex:none;font-size:11.5px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;border-radius:7px;padding:5px 9px;margin-top:2px}
.sca .callout.dont{background:var(--red-soft)}
.sca .callout.dont .badge{background:var(--red);color:#fff}
.sca .callout.tip{background:var(--yellow-soft)}
.sca .callout.tip .badge{background:var(--yellow-bar);color:#3B2A00}
.sca .callout.info{background:var(--blue-soft)}
.sca .callout.info .badge{background:var(--blue);color:#fff}
.sca .callout .body{color:var(--ink);font-size:14.5px;min-width:0}
.sca .callout .body > * + *{margin-top:6px}
.sca .callout .body strong.h{display:block}
.sca .callout .body strong.h{font-size:15.5px}

/* try it */
.sca .try{display:flex;flex-direction:column;gap:10px}
.sca .tryrow{display:grid;grid-template-columns:minmax(0,1fr) 240px 28px;gap:12px;align-items:center;background:var(--surface-2);border-radius:10px;padding:10px 12px}
.sca .tryrow .rich{font-size:14.5px;color:var(--ink)}
.sca .tryrow .num{font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.sca select,.sca input[type=text],.sca input[type=email],.sca input[type=search],.sca textarea{width:100%;font:500 14.5px var(--sans);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:10px 12px}
.sca textarea{min-height:150px;resize:vertical;line-height:1.5}
.sca .mark{font-weight:800;text-align:center}
.sca .mark.y{color:var(--green)}.sca .mark.n{color:var(--red)}
.sca .btn{border:0;background:var(--blue);color:#fff;font-weight:700;border-radius:10px;padding:12px 20px;font-size:15px;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;line-height:1.3}
.sca .btn:hover{background:var(--blue-ink);color:#fff}
.sca .btn[disabled],.sca .btn[aria-disabled="true"]{background:var(--surface-2);color:var(--muted);cursor:not-allowed;border:1px solid var(--line)}
.sca .btn.ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--line)}
.sca .btn.ghost:hover{border-color:var(--blue);background:var(--surface)}
.sca .btn.ghost[disabled]{opacity:.55}
.sca .btn.green{background:var(--green-bar)}
.sca .btn.green:hover{background:var(--green)}
.sca .btn.green[disabled]{background:var(--surface-2)}
.sca .btn.big{font-size:16px;padding:14px 24px;text-transform:uppercase;letter-spacing:.03em}
.sca .btn.small{font-size:13.5px;padding:8px 14px}
.sca .btn .spin{width:16px;height:16px;border-width:2px;border-color:rgba(255,255,255,.35);border-top-color:#fff}
.sca .btn.ghost .spin{border-color:var(--line);border-top-color:var(--blue)}
.sca .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.sca .feedback{font-size:14px;font-weight:600;border-radius:9px;padding:10px 12px}
.sca .feedback.ok{background:var(--green-soft);color:var(--green)}
.sca .feedback.no{background:var(--red-soft);color:var(--red)}
.sca .feedback.info{background:var(--blue-soft);color:var(--blue)}
.sca .feedback .rich{color:inherit;font-weight:500}

/* assignment */
.sca .fieldlabel{font-weight:700;color:var(--ink);font-size:14px;display:block;margin-bottom:6px}
.sca .hint{font-size:13.5px;color:var(--muted)}
.sca .wc{font-family:var(--mono);font-size:12.5px;border-radius:99px;padding:2px 9px;background:var(--surface-2);color:var(--muted)}
.sca .wc.ok{background:var(--green-soft);color:var(--green)}

/* checklist */
.sca .checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.sca .checks label{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:10px;background:var(--surface-2);cursor:pointer;font-size:14.5px;color:var(--ink)}
.sca .checks input{width:18px;height:18px;margin-top:2px;accent-color:var(--green-bar);flex:none}

/* questions */
.sca .q{display:flex;flex-direction:column;gap:10px;padding:16px 0;border-top:1px solid var(--line)}
.sca .q:first-child{border-top:0;padding-top:0}
.sca .q h3{font-size:16px;line-height:1.45;font-weight:700}
.sca .q .num{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.04em}
.sca .q.done .num::after{content:" · CORRECT";color:var(--green)}
.sca .opts{display:flex;flex-direction:column;gap:8px}
.sca .opt{display:flex;gap:12px;align-items:flex-start;border:1.5px solid var(--line);background:var(--surface);border-radius:10px;padding:11px 14px;text-align:left;font-size:14.5px;color:var(--ink);line-height:1.45;width:100%}
.sca .opt .key{flex:none;width:24px;height:24px;border-radius:7px;background:var(--surface-2);display:grid;place-items:center;font-size:12px;font-weight:800;color:var(--muted)}
.sca .opt:hover{border-color:var(--blue)}
.sca .opt.sel{border-color:var(--blue);background:var(--blue-soft)}
.sca .opt.sel .key{background:var(--blue);color:#fff}
.sca .opt.right{border-color:var(--green-bar);background:var(--green-soft)}
.sca .opt.right .key{background:var(--green-bar);color:#fff}
.sca .opt.wrong{border-color:var(--red);background:var(--red-soft)}
.sca .opt[disabled]{cursor:default}
.sca .opt[disabled]:hover{border-color:var(--line)}
.sca .opt.right[disabled]:hover{border-color:var(--green-bar)}

/* key terms + sources */
.sca .terms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0}
.sca .terms div{background:var(--surface-2);border-radius:10px;padding:12px 14px}
.sca .terms dt{font-weight:800;color:var(--ink);font-size:14.5px}
.sca .terms dd{margin:4px 0 0;font-size:14px;line-height:1.55}
.sca .sources{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.sca .sources a{display:inline-flex;gap:8px;align-items:flex-start;font-size:14.5px;font-weight:600;text-decoration:none;line-height:1.45}
.sca .sources a:hover{text-decoration:underline}
.sca .sources a svg{flex:none;margin-top:4px;width:13px;height:13px}
.sca .sources small{display:block;color:var(--muted);font-weight:500;font-size:12px;word-break:break-all}

.sca .completebar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 22px;position:sticky;bottom:12px;z-index:5;box-shadow:var(--shadow)}
.sca .completebar .req{display:flex;gap:14px;flex-wrap:wrap;font-size:13.5px;font-weight:600;color:var(--muted)}
.sca .completebar .req span.on{color:var(--green)}
.sca .navbtns{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* dashboard */
.sca .hero{background:linear-gradient(135deg,var(--surface) 0%,var(--blue-soft) 140%);border:1px solid var(--line);border-radius:18px;padding:26px 28px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.sca .hero h1{font-size:clamp(26px,3vw,34px);font-weight:800;line-height:1.15}
.sca .hero p{margin-top:6px;max-width:60ch}
.sca .stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.sca .stats .stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;gap:6px}
.sca .stats .stat b{font-size:20px}
.sca .stats .stat .pill{align-self:flex-start}
.sca .modgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.sca .modcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;min-width:0}
.sca .modcard .cover{aspect-ratio:960/360;height:auto;background:var(--surface-2);display:block;width:100%;object-fit:cover;border-bottom:1px solid var(--line)}
.sca .modcard .cover.ph{display:grid;place-items:center;color:var(--muted);font:800 34px var(--sans)}
.sca .modcard.locked .cover{filter:grayscale(.85);opacity:.6}
.sca .modcard .mb{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.sca .modcard .mnum{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sca .modcard h3{font-size:16.5px;line-height:1.3}
.sca .modcard .ms{font-size:13.5px;color:var(--muted);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.sca .modcard .mfoot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.sca .minibar{height:6px;background:var(--surface-2);border-radius:99px;overflow:hidden;border:1px solid var(--line)}
.sca .minibar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--green-bar))}
.sca .modcard .mrow{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-weight:600;flex-wrap:wrap}
.sca .modcard.final{background:linear-gradient(160deg,var(--surface) 30%,var(--yellow-soft))}
.sca .modcard.final .cover.ph{background:linear-gradient(135deg,#0B1F44,#1A4FA8);color:#F3DC94}

/* quiz */
.sca .quizhead{display:flex;gap:20px;align-items:flex-end;justify-content:space-between;flex-wrap:wrap}
.sca .rules{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.sca .rule{background:var(--surface-2);border-radius:12px;padding:12px 14px}
.sca .rule span{display:block;font-size:11.5px;color:var(--muted);font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.sca .rule b{font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums}
.sca .result{border-radius:16px;padding:24px 26px;display:flex;flex-direction:column;gap:14px}
.sca .result.pass{background:var(--green-soft)}
.sca .result.fail{background:var(--yellow-soft)}
.sca .result h2{font-size:24px}
.sca .score{display:flex;gap:26px;align-items:center;flex-wrap:wrap}
.sca .ring{--p:0;width:112px;height:112px;border-radius:50%;background:conic-gradient(var(--c,var(--green-bar)) calc(var(--p)*1%),color-mix(in srgb,var(--ink) 10%,transparent) 0);display:grid;place-items:center;flex:none}
.sca .ring b{width:86px;height:86px;border-radius:50%;background:var(--surface);display:grid;place-items:center;font-size:24px;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.sca .scoreline{font-weight:700;color:var(--ink);font-size:15.5px}
.sca .weak{display:flex;flex-direction:column;gap:6px;margin:0;padding:0;list-style:none}
.sca .weak li{background:var(--surface);border-radius:10px;padding:10px 12px;font-size:14px;color:var(--ink);display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.sca .qprog{position:sticky;top:70px;z-index:6;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px;display:flex;align-items:center;gap:12px;box-shadow:var(--shadow)}
body.admin-bar .sca .qprog{top:102px}
.sca .qprog .bar{flex:1;height:8px;background:var(--surface-2);border-radius:99px;overflow:hidden;border:1px solid var(--line)}
.sca .qprog .bar i{display:block;height:100%;background:var(--blue);transition:width .3s}
.sca .qprog b{font-size:13px;color:var(--ink);white-space:nowrap;font-variant-numeric:tabular-nums}
.sca .q.unanswered{box-shadow:inset 3px 0 0 var(--yellow-bar);padding-left:12px}

/* gate */
.sca .gate{max-width:560px;margin:48px auto;padding:0 16px}
.sca .gate .card{padding:30px;display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow)}
.sca .gate h1{font-size:28px;line-height:1.2}
.sca .gate .namepreview{border:1px dashed var(--line);border-radius:12px;padding:18px;text-align:center;background:var(--surface-2)}
.sca .gate .namepreview span{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700}
.sca .gate .namepreview div{font:italic 600 28px/1.3 Georgia,'Times New Roman',serif;color:var(--ink);min-height:36px;margin-top:4px;word-break:break-word}
.sca label.cb{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink)}
.sca label.cb input{width:18px;height:18px;margin-top:2px;flex:none;accent-color:var(--blue)}
.sca .gate-actions{display:flex;gap:10px;flex-wrap:wrap}
.sca .gate-points{margin:0;padding-left:1.2em;font-size:14px;color:var(--muted);display:flex;flex-direction:column;gap:4px}
.sca .fielderr{color:var(--red);font-size:13.5px;font-weight:600}

/* certificate view */
.sca .certflow{display:flex;flex-direction:column;gap:18px}
.sca .congrats{text-align:center;padding:34px 26px;background:linear-gradient(160deg,var(--green-soft),var(--surface) 70%);border:1px solid var(--line);border-radius:18px;display:flex;flex-direction:column;align-items:center;gap:12px}
.sca .congrats h1{font-size:clamp(28px,3.6vw,40px);font-weight:800}
.sca .confirmname{font:400 44px/1.25 'Great Vibes','Brush Script MT',cursive;color:var(--ink);border-bottom:2px solid #C9A24A;padding:0 18px 4px;word-break:break-word}
.sca .certframe{background:var(--surface-2);border:1px solid var(--line);border-radius:16px;padding:14px;overflow:hidden}
.sca .certscale{width:1100px;transform-origin:top left}
.sca .certscale .scac{box-shadow:0 10px 30px -14px rgba(11,31,68,.45)}
.sca .certactions{display:flex;flex-wrap:wrap;gap:10px}
.sca .emailform{display:flex;gap:10px;flex-wrap:wrap}
.sca .emailform input{flex:1 1 240px;min-width:0}
.sca .verifyline{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:14px}
.sca .verifyline code{word-break:break-all}
.sca .pdf-stage{position:fixed;left:-20000px;top:0;width:1100px;height:850px;pointer-events:none}

/* glossary */
.sca .gl-list{display:flex;flex-direction:column;gap:0;margin:0}
.sca .gl-item{padding:12px 2px;border-bottom:1px solid var(--line)}
.sca .gl-item dt{font-weight:800;color:var(--ink)}
.sca .gl-item dd{margin:4px 0 0;font-size:14.5px}
.sca .gl-letter{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--muted);padding:14px 2px 4px;border-bottom:2px solid var(--line)}

.sca .toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:11px 18px;border-radius:10px;font-weight:600;font-size:14px;z-index:50;box-shadow:var(--shadow);max-width:calc(100vw - 32px);text-align:center}

.sca .sidetoggle{display:none}
@media (max-width:980px){
  .sca .shell{grid-template-columns:1fr;gap:18px}
  .sca .side{position:static;max-height:none}
  .sca .side.collapsed .modlist,.sca .side.collapsed .statcard{display:none}
  .sca .sidetoggle{display:flex;justify-content:space-between;align-items:center;width:100%;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-weight:700;border-radius:12px;padding:12px 14px}
  .sca .top .course{display:none}
  .sca .stats{grid-template-columns:1fr}
}
@media (max-width:720px){
  .sca .top{flex-wrap:wrap;gap:10px 14px;padding:10px 16px}
  .sca .prog{order:3;width:100%;min-width:0}
  .sca .shell{padding:18px 16px 50px}
  .sca .panel{padding:20px 18px}
  .sca .hero{padding:20px 18px}
  .sca .learn-list,.sca .ex-grid,.sca .terms{grid-template-columns:1fr}
  .sca .pipe{grid-template-columns:1fr!important}
  .sca .stage,.sca .stage:first-child,.sca .stage:last-child{border-radius:0;border-right:0;border-bottom:1px solid var(--line);min-height:0}
  .sca .stage:first-child{border-radius:12px 12px 0 0}.sca .stage:last-child{border-radius:0 0 12px 12px;border-bottom:0}
  .sca .stage::after{display:none}
  .sca .tryrow{grid-template-columns:minmax(0,1fr) 28px}
  .sca .tryrow select{grid-column:1/-1;grid-row:2}
  .sca .rules{grid-template-columns:1fr 1fr}
  .sca .who span.nm{display:none}
  .sca .callout{flex-direction:column;gap:10px}
  .sca .completebar{position:static}
  .sca .qprog{top:8px}
  .sca .confirmname{font-size:34px}
  .sca .gate .card{padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){.sca *,.sca *::before,.sca *::after{transition:none!important;animation:none!important}html.sca-html{scroll-behavior:auto}.sca .spin{animation:sca-spin 2s linear infinite!important}}
@media print{.sca .top,.sca .side,.sca .completebar,.sca .navbtns{display:none!important}.sca .shell{display:block}}