/* Layout: institutional register. Utility bar, sticky main nav, one page shown at a time. Navy ground for hero and footer, white paper for content, cyan from the ISA mark as the single accent. Single light look, committed. */
:root{
  --ink:#0c1a36;      /* deep navy, primary */
  --ink2:#15295a;     /* raised navy */
  --cyan:#01a3dc;     /* ISA mark accent */
  --paper:#ffffff;
  --mist:#eef2f8;     /* navy-tinted panel */
  --line:#d7deea;
  --text:#18223a;
  --muted:#5b6784;
  --ok:#157347;--okbg:#e3f4ea;--warn:#9a6208;--warnbg:#fcf1dc;--bad:#b42323;--badbg:#fbe5e5;
  --f-head:"Source Serif 4",Georgia,"Times New Roman",serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
body{background:var(--paper);color:var(--text);font-family:var(--f-body);font-size:16px;line-height:1.6}
a{color:var(--ink2)}
h1,h2,h3{font-family:var(--f-head);color:var(--ink);line-height:1.18;text-wrap:balance;margin:0}
h1{font-size:clamp(32px,5vw,54px)}
h2{font-size:clamp(26px,3.4vw,36px)}
h3{font-size:20px}
p{margin:0}
.wrap{max-width:1180px;margin:0 auto;padding-inline:20px}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
/* utility + nav */
.util{background:var(--ink);color:#c9d3ea;font-size:13px}
.util .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-block:7px;flex-wrap:wrap}
.util a{color:#c9d3ea;text-decoration:none}.util a:hover{color:#fff}
.util nav{display:flex;gap:18px;flex-wrap:wrap}
header.main{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(12,26,54,.06)}
header.main .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.isalogo{display:block;height:40px;width:auto;max-width:100%}
@media(max-width:480px){.isalogo{height:30px}}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;cursor:pointer}
.mark{width:42px;height:42px;flex:0 0 42px}
.brand b{display:block;font-family:var(--f-head);font-size:21px;letter-spacing:.02em;color:var(--ink);line-height:1}
.brand small{display:block;font-size:10px;letter-spacing:.24em;color:var(--muted);font-weight:600;margin-top:4px}
.navlinks{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.navlinks a{font-size:14px;font-weight:600;color:var(--text);text-decoration:none;padding:9px 12px;border-radius:6px}
.navlinks a:hover,.navlinks a.on{color:var(--ink);background:var(--mist)}
.btn{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:700;font-size:15px;border:0;border-radius:6px;padding:12px 20px;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn-cyan{background:var(--cyan);color:#fff}.btn-cyan:hover{background:#0089bb}
.btn-ink{background:var(--ink);color:#fff}.btn-ink:hover{background:var(--ink2)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.45)}.btn-ghost:hover{border-color:#fff}
.menu-t{display:none;background:var(--mist);border:0;border-radius:6px;padding:10px 12px;font:inherit;font-weight:700;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}
@media(max-width:1180px){.menu-t{display:block}.navlinks{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);flex-direction:column;align-items:stretch;padding:10px 16px 16px;border-bottom:1px solid var(--line)}.navlinks.open{display:flex}.navlinks .btn{justify-content:center}}
/* hero */
.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.25fr .9fr;gap:48px;padding-block:72px 84px;align-items:center}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:#7fd8f7}
.hero .lead{color:#c9d3ea;font-size:18px;max-width:560px;margin-top:18px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.verify{background:var(--paper);color:var(--text);border-radius:10px;padding:26px;box-shadow:0 24px 60px rgba(0,0,0,.35);border-top:5px solid var(--cyan)}
.verify h3{margin-bottom:4px}
.verify p{color:var(--muted);font-size:14px;margin-bottom:16px}
label{display:block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);margin-bottom:6px}
input,select,textarea{width:100%;font:inherit;font-size:15px;color:var(--text);background:#fff;border:1.5px solid var(--line);border-radius:6px;padding:11px 12px}
textarea{min-height:110px;resize:vertical}
.fgrid{display:grid;gap:12px}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-block:48px 56px}}
/* bands */
section.band{padding-block:72px}
.band.mist{background:var(--mist)}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.head p{color:var(--muted);max-width:620px;margin-top:8px}
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.facts div{padding:26px 22px;border-right:1px solid var(--line)}
.facts div:last-child{border-right:0}
.facts b{display:block;font-family:var(--f-head);font-size:34px;color:var(--ink);line-height:1.1}
.facts span{font-size:13.5px;color:var(--muted)}
@media(max-width:760px){.facts{grid-template-columns:1fr 1fr}.facts div:nth-child(2){border-right:0}.facts div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
.progs{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.prog{background:var(--paper);padding:26px 24px;display:flex;flex-direction:column;gap:10px;min-width:0}
.prog .code{font-family:var(--f-mono);font-size:12.5px;color:var(--cyan);font-weight:500}
.prog p{color:var(--muted);font-size:14.5px}
.prog a{margin-top:auto;font-weight:700;font-size:14px;text-decoration:none;color:var(--ink2)}
.prog a:hover{text-decoration:underline}
.prog svg{width:34px;height:34px}
@media(max-width:900px){.progs{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.progs{grid-template-columns:1fr}}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:s}
.steps li{position:relative;padding:22px 20px 22px 0;border-top:3px solid var(--line);counter-increment:s}
.steps li:before{content:counter(s);position:absolute;top:-17px;left:0;width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;font-weight:700;font-size:14px;display:grid;place-items:center}
.steps li b{display:block;font-family:var(--f-head);font-size:18px;color:var(--ink);margin:12px 0 4px}
.steps li span{font-size:14.5px;color:var(--muted)}
.steps.full{grid-template-columns:repeat(4,1fr);row-gap:26px}
@media(max-width:900px){.steps,.steps.full{grid-template-columns:1fr 1fr;row-gap:26px}}
@media(max-width:520px){.steps,.steps.full{grid-template-columns:1fr}}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.split>div{min-width:0}
@media(max-width:860px){.split{grid-template-columns:1fr}}
.prose p+p{margin-top:14px}
.prose p,.prose li{color:#33405e;max-width:68ch}
.prose ul{padding-left:20px;margin:12px 0 0}
.prose li+li{margin-top:6px}
.cta-band{background:var(--ink2);color:#fff}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-block:44px}
.cta-band h2{color:#fff}
.cta-band p{color:#c9d3ea;margin-top:6px}
/* page header */
.phead{background:var(--ink);color:#fff;padding-block:52px 46px}
.phead h1{color:#fff;font-size:clamp(30px,4vw,44px)}
.phead p{color:#c9d3ea;max-width:640px;margin-top:10px}
.crumb{font-size:13px;color:#8fa0c7;margin-bottom:10px}
/* tables */
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:8px}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th{background:var(--ink);color:#fff;text-align:center;font-weight:600;font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;padding:12px 14px;white-space:nowrap}
td{padding:14px;border-top:1px solid var(--line);vertical-align:middle}
tbody tr:hover td{background:#f7f9fd}
.mono{font-family:var(--f-mono);font-size:13px}
.pill{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700}
.ok{background:var(--okbg);color:var(--ok)}.warn{background:var(--warnbg);color:var(--warn)}.bad{background:var(--badbg);color:var(--bad)}
.filters{display:grid;grid-template-columns:2fr 1.2fr 1fr auto;gap:12px;align-items:end;margin-bottom:18px}
@media(max-width:760px){.filters{grid-template-columns:1fr}}
.note{background:var(--mist);border-left:4px solid var(--cyan);padding:14px 16px;border-radius:0 6px 6px 0;font-size:14.5px;color:#33405e}
.docs td:first-child{white-space:nowrap}
.cards2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{border:1px solid var(--line);border-radius:8px;padding:24px;background:var(--paper);min-width:0}
.card h3{margin-bottom:8px}
@media(max-width:760px){.cards2{grid-template-columns:1fr}}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary:after{content:"+";font-size:22px;line-height:1;color:var(--cyan)}
.faq details[open] summary:after{content:"–"}
.faq p{margin-top:10px;color:#33405e}
.dos{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.dos .card{border-top:4px solid var(--ok)}.dos .card.no{border-top-color:var(--bad)}
.dos ul{margin:0;padding-left:18px}.dos li+li{margin-top:6px}
@media(max-width:760px){.dos{grid-template-columns:1fr}}
.cblogo{max-width:170px;height:auto;display:block}
/* certificate results */
.crow{display:grid;grid-template-columns:1fr 1.6fr 1.3fr 1.2fr auto;gap:14px;align-items:center;border:1px solid var(--line);border-left:4px solid var(--ink);border-radius:8px;padding:14px 16px;margin-top:10px}
.crow>div{min-width:0}
.crow small{display:block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
@media(max-width:820px){.crow{grid-template-columns:1fr 1fr}.crow .btn{grid-column:1/-1;justify-content:center}}
/* footer */
footer{background:var(--ink);color:#aebbd8;font-size:14px}
footer .wrap{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-block:52px 30px}
footer h4{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 12px}
footer a{color:#aebbd8;text-decoration:none;display:block;padding:3px 0;cursor:pointer}
footer a:hover{color:#fff}
footer .legal{grid-column:1/-1;border-top:1px solid #253a6a;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px}
@media(max-width:820px){footer .wrap{grid-template-columns:1fr 1fr}}
.alert{padding:14px 16px;border-radius:6px;font-weight:600}.alert.bad{background:var(--badbg);color:var(--bad)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:8px;font-weight:600;z-index:60;box-shadow:0 10px 30px rgba(0,0,0,.3)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

body{margin:0}
[hidden]{display:none!important}
img{max-width:100%}
.alert{padding:14px 16px;border-radius:6px;font-weight:600;margin-bottom:18px}
.alert.ok{background:var(--okbg);color:var(--ok)}.alert.bad{background:var(--badbg);color:var(--bad)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.navlinks a.btn{margin-left:6px}
.navlinks a.btn.on{background:#0089bb;color:#fff}
.hero canvas{pointer-events:none}

section.isa-reg{font-family:var(--f-body)}
section.isa-reg .isa-rec h2{font-family:var(--f-head)}
.navlinks{flex-wrap:nowrap}
.navlinks a{padding:9px 10px}
.filters.f2{grid-template-columns:1fr auto}.filters.f3{grid-template-columns:1fr 1.6fr auto}
@media(max-width:760px){.filters.f2,.filters.f3{grid-template-columns:1fr}.filters .btn{justify-content:center}}
@media(max-width:1180px){.navlinks{flex-wrap:nowrap}.navlinks a.btn{margin-left:0;margin-top:6px}}
.navlinks a{white-space:nowrap}
@media(min-width:1181px){.isalogo{height:36px}}