/* Frost Contracting — colours come straight from the FC logo:
   indigo #1d006f (the F), electric blue #2541fa (the C), periwinkle #889efc (the outline). */
:root{
  --indigo:#1d006f;
  --indigo-2:#2c1290;
  --blue:#2541fa;
  --blue-d:#1730d6;
  --peri:#889efc;
  --peri-l:#dfe5ff;
  --peri-xl:#f1f3ff;
  --bg:#f8f9ff;
  --surface:#fff;
  --ink:#150c40;
  --ink2:#4a4778;
  --dim:#7c7aa3;
  --line:#e2e5f8;
  --ok:#137a4b;
  --warn:#9a5b00;
  --r:16px;
  --maxw:1140px;
  --shadow:0 1px 2px rgba(29,0,111,.06),0 10px 28px -14px rgba(29,0,111,.22);
  --shadow-hi:0 2px 4px rgba(29,0,111,.07),0 22px 44px -18px rgba(29,0,111,.32);
  --brand-font:'Michroma',ui-sans-serif,system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--peri);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- type ---------- */
.eyebrow{font-family:var(--brand-font);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--blue);margin-bottom:14px}
h1,h2,h3{color:var(--ink);letter-spacing:-.022em;line-height:1.12}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800}
h3{font-size:1.14rem;font-weight:700;letter-spacing:-.01em;line-height:1.3}
.hl{color:var(--blue)}
.lead{font-size:clamp(1.05rem,1.6vw,1.2rem);color:var(--ink2);max-width:62ch;margin-top:18px}
p{color:var(--ink2)}
.muted{color:var(--dim)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:.98rem;padding:12px 20px;
  border-radius:11px;border:1.5px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,transform .15s,box-shadow .15s;
  font-family:inherit;line-height:1.2;text-decoration:none!important;white-space:nowrap}
.btn svg{width:18px;height:18px;flex:none}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px -10px rgba(37,65,250,.7)}
.btn--primary:hover{background:var(--blue-d);transform:translateY(-1px)}
.btn--ghost{background:var(--surface);color:var(--indigo);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--peri);transform:translateY(-1px)}
.btn--small{padding:8px 13px;font-size:.88rem;border-radius:9px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:13px;color:var(--indigo);text-decoration:none!important}
.brand img{height:38px;width:auto}
.brand__name{font-family:var(--brand-font);font-size:.92rem;letter-spacing:.16em;line-height:1;color:var(--indigo);white-space:nowrap}
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:var(--ink2);font-weight:600;font-size:.95rem;padding:9px 13px;border-radius:9px;text-decoration:none}
.nav a:hover{background:var(--peri-xl);color:var(--indigo)}
.nav a[aria-current="page"]{color:var(--indigo);background:var(--peri-xl)}
.nav .nav__library{display:inline-flex;align-items:center;gap:7px;color:var(--indigo);border:1.5px solid var(--line);margin-left:6px}
.nav .nav__library svg{width:15px;height:15px}
.menu-btn{display:none;background:none;border:1.5px solid var(--line);border-radius:10px;width:44px;height:44px;
  align-items:center;justify-content:center;color:var(--indigo);cursor:pointer}
.menu-btn svg{width:22px;height:22px}
@media (max-width:820px){
  .menu-btn{display:inline-flex}
  .nav{position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;padding:10px 16px 18px;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 30px -20px rgba(29,0,111,.35);display:none}
  .nav.is-open{display:flex}
  .nav a{padding:13px 12px;font-size:1rem}
  .nav .nav__library{margin:6px 0 0;justify-content:center}
}
@media (max-width:420px){ .brand__name{font-size:.78rem;letter-spacing:.12em} .brand img{height:32px} }

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:84px 0 92px;
  background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.hero::before{content:"";position:absolute;right:-12%;top:-30%;width:62%;height:160%;
  background:linear-gradient(135deg,var(--peri-xl),#e9edff);clip-path:polygon(22% 0,100% 0,100% 100%,0 100%);z-index:0}
.hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero__mark{display:flex;justify-content:center}
.hero__mark img{width:min(420px,100%);height:auto;filter:drop-shadow(0 26px 40px rgba(29,0,111,.22))}
@media (max-width:860px){
  .hero{padding:48px 0 64px}
  .hero::before{right:-40%;width:100%;top:-10%}
  .hero__grid{grid-template-columns:1fr;gap:28px}
  .hero__mark{order:-1;justify-content:flex-start}
  .hero__mark img{width:150px}
}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section--tint{background:linear-gradient(180deg,var(--peri-xl),#fff)}
.section--tight{padding:56px 0}
.section__head{max-width:720px;margin-bottom:40px}
@media (max-width:640px){ .section{padding:60px 0} }

/* ---------- service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:960px){ .cards{grid-template-columns:repeat(2,1fr)} }
@media (max-width:600px){ .cards{grid-template-columns:1fr} }
.card{position:relative;display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);padding:26px 24px 22px;color:inherit;text-decoration:none!important;box-shadow:var(--shadow);
  transition:transform .18s,box-shadow .18s,border-color .18s;overflow:hidden}
.card::after{content:"";position:absolute;top:0;right:0;width:46px;height:46px;background:var(--peri-xl);
  clip-path:polygon(30% 0,100% 0,100% 70%);transition:background .18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hi);border-color:var(--peri-l)}
.card:hover::after{background:var(--peri)}
.card__icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--indigo);color:#fff}
.card__icon svg{width:26px;height:26px}
.card:nth-child(even) .card__icon{background:var(--blue)}
.card p{font-size:.97rem;flex:1}
.card__more{font-weight:600;font-size:.92rem;color:var(--blue);display:inline-flex;align-items:center;gap:6px}
.card__more::after{content:"→";transition:transform .18s}
.card:hover .card__more::after{transform:translateX(4px)}

/* ---------- about / split ---------- */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
@media (max-width:900px){ .split{grid-template-columns:1fr;gap:36px} }
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--shadow)}
.panel--indigo{background:var(--indigo);border-color:var(--indigo);color:#fff}
.panel--indigo h3,.panel--indigo p{color:#fff}
.panel--indigo p{opacity:.86}
.panel--indigo .eyebrow{color:var(--peri)}
.panel h3+p{margin-top:8px}

/* ---------- page hero (service pages) ---------- */
.page-hero{position:relative;overflow:hidden;padding:64px 0 56px;background:linear-gradient(180deg,#fff,var(--bg));border-bottom:1px solid var(--line)}
.page-hero::before{content:"";position:absolute;right:-6%;top:0;bottom:0;width:38%;background:var(--peri-xl);
  clip-path:polygon(30% 0,100% 0,100% 100%,0 100%)}
.page-hero .wrap{position:relative}
.page-hero__grid{display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center}
.page-hero__icon{width:116px;height:116px;border-radius:26px;display:grid;place-items:center;background:var(--indigo);color:#fff;
  box-shadow:0 24px 40px -22px rgba(29,0,111,.7)}
.page-hero__icon svg{width:60px;height:60px}
@media (max-width:720px){
  .page-hero{padding:40px 0 40px}
  .page-hero__grid{grid-template-columns:1fr}
  .page-hero__icon{order:-1;width:68px;height:68px;border-radius:18px}
  .page-hero__icon svg{width:36px;height:36px}
}
.crumb{display:inline-flex;align-items:center;gap:6px;font-size:.88rem;font-weight:600;color:var(--dim);margin-bottom:18px}
.crumb::before{content:"←"}

/* ---------- lists ---------- */
.ticks{list-style:none;display:grid;gap:14px;margin-top:22px}
.ticks li{position:relative;padding-left:34px;color:var(--ink2)}
.ticks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:6px;background:var(--peri-xl);
  border:1.5px solid var(--peri)}
.ticks li::after{content:"";position:absolute;left:7px;top:7px;width:6px;height:10px;border:solid var(--blue);border-width:0 2.2px 2.2px 0;transform:rotate(45deg)}
.ticks strong{color:var(--ink)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-top:28px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 20px 18px}
.feature h3{font-size:1.02rem;display:flex;align-items:center;gap:10px}
.feature h3 svg{width:22px;height:22px;color:var(--blue);flex:none}
.feature p{font-size:.94rem;margin-top:6px}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-top:28px}
.step{counter-increment:step;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px}
.step::before{content:counter(step);display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--blue);color:#fff;
  font-weight:700;margin-bottom:12px;font-size:.95rem}
.step p{font-size:.94rem;margin-top:4px}

.figure{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.figure img{width:100%;height:auto}
.figure figcaption{font-size:.85rem;color:var(--dim);padding:12px 16px;border-top:1px solid var(--line)}
.badge-line{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:.9rem;font-weight:600;color:var(--indigo);
  background:var(--peri-xl);border:1px solid var(--peri-l);padding:7px 13px;border-radius:999px}

/* ---------- more services strip ---------- */
.more{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:22px}
@media (max-width:960px){ .more{grid-template-columns:repeat(3,1fr)} }
@media (max-width:560px){ .more{grid-template-columns:1fr 1fr} }
.more a{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:13px 14px;
  font-weight:600;font-size:.92rem;color:var(--indigo);text-decoration:none;transition:border-color .15s,transform .15s}
.more a:hover{border-color:var(--peri);transform:translateY(-2px)}
.more svg{width:20px;height:20px;color:var(--blue);flex:none}

/* ---------- contact band + footer ---------- */
.contact{background:var(--indigo);color:#fff;position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;inset:0 0 0 auto;width:46%;background:linear-gradient(135deg,var(--indigo-2),var(--blue));
  clip-path:polygon(28% 0,100% 0,100% 100%,0 100%);opacity:.75}
.contact .wrap{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;padding-top:64px;padding-bottom:64px}
.contact h2{color:#fff}
.contact p{color:rgba(255,255,255,.82);margin-top:10px}
.contact .eyebrow{color:var(--peri)}
.contact__card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--r);padding:24px;display:grid;gap:14px}
.contact__row{display:flex;align-items:center;gap:12px;color:#fff;font-weight:600;word-break:break-word}
.contact__row svg{width:20px;height:20px;color:var(--peri);flex:none}
.contact__row a{color:#fff}
@media (max-width:820px){ .contact .wrap{grid-template-columns:1fr} .contact::before{width:90%;opacity:.45} }

.site-footer{background:#12004a;color:rgba(255,255,255,.7);font-size:.9rem;padding:44px 0 34px}
.site-footer__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:32px}
.site-footer h4{font-family:var(--brand-font);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--peri);margin-bottom:12px;font-weight:400}
.site-footer ul{list-style:none;display:grid;gap:7px}
.site-footer a{color:rgba(255,255,255,.86)}
.site-footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.site-footer__brand img{height:34px}
.site-footer__brand span{font-family:var(--brand-font);letter-spacing:.16em;font-size:.82rem;color:#fff}
.site-footer__base{margin-top:30px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:760px){ .site-footer__grid{grid-template-columns:1fr 1fr} .site-footer__grid>div:first-child{grid-column:1/-1} }

/* ---------- sign-in ---------- */
.signin{min-height:calc(100vh - 72px);display:grid;place-items:center;padding:48px 20px;
  background:linear-gradient(180deg,#fff,var(--peri-xl))}
.signin__card{width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px 30px 30px;box-shadow:var(--shadow-hi);text-align:center}
.signin__card img{width:84px;margin:0 auto 18px}
.signin__card h1{font-size:1.6rem}
.signin__card p{margin-top:8px;font-size:.96rem}
.signin form{margin-top:24px;display:grid;gap:12px;text-align:left}
.signin label{font-weight:600;font-size:.9rem;color:var(--ink)}
.signin input[type=password],.signin input[type=text]{width:100%;font:inherit;font-size:1rem;padding:13px 14px;border:1.5px solid var(--line);border-radius:11px;background:var(--bg);color:var(--ink)}
.signin input[type=password]:focus,.signin input[type=text]:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(37,65,250,.12)}
.signin .btn{justify-content:center;width:100%;margin-top:4px}
.signin__error{display:none;background:#fff1f1;border:1px solid #f3c5c5;color:#9b1c1c;border-radius:10px;padding:10px 12px;font-size:.92rem}
.signin__error.is-shown{display:block}
.signin__fine{font-size:.82rem!important;color:var(--dim)!important;margin-top:16px!important}

/* ---------- software library ---------- */
.lib-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap}
.lib-head form{margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0 22px}
.chip{font:inherit;font-weight:600;font-size:.9rem;padding:8px 14px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--ink2);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--indigo);border-color:var(--indigo);color:#fff}
.chip .n{opacity:.6;margin-left:4px;font-weight:500}
.apps{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media (max-width:900px){ .apps{grid-template-columns:1fr} }
.app{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px}
.app[hidden]{display:none}
.app__top{display:flex;gap:16px;align-items:flex-start}
.app__icon{width:64px;height:64px;border-radius:15px;flex:none;object-fit:cover;background:var(--peri-xl)}
.app__icon--letter{display:grid;place-items:center;font-family:var(--brand-font);font-size:1.3rem;color:#fff;background:linear-gradient(135deg,var(--indigo),var(--blue))}
.app h3{font-size:1.14rem}
.app__was{font-size:.82rem;color:var(--dim);margin-top:2px}
.app__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.tag{font-size:.75rem;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--peri-xl);color:var(--indigo);border:1px solid var(--peri-l)}
.tag--working{background:#fff6e5;color:var(--warn);border-color:#f4dfb5}
.app__blurb{font-size:.95rem}
.app__note{font-size:.86rem;color:var(--dim);background:var(--bg);border-radius:10px;padding:9px 12px}
.app__files{display:grid;gap:8px;margin-top:auto}
.file{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:11px;padding:10px 12px;
  color:var(--ink);text-decoration:none!important;transition:border-color .15s,background .15s}
.file:hover{border-color:var(--peri);background:var(--peri-xl)}
.file__name{display:flex;align-items:center;gap:10px;font-weight:600;font-size:.93rem;min-width:0}
.file__name svg{width:19px;height:19px;color:var(--blue);flex:none}
.file__name span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file__meta{font-size:.8rem;color:var(--dim);white-space:nowrap}
.file--missing{opacity:.55;pointer-events:none;border-style:dashed}
.lib-foot{margin-top:40px;font-size:.88rem;color:var(--dim)}

/* ---------- 404 ---------- */
.notfound{padding:120px 0;text-align:center}
.notfound p{margin:14px auto 0;max-width:48ch}
.notfound .btn-row{justify-content:center}

/* ---------- icons (sprite in src/partials/icons.svg) ---------- */
svg.i{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--indigo);color:#fff;padding:10px 14px;border-radius:10px;font-weight:600}
.skip:focus{top:12px}
.site-footer p{color:rgba(255,255,255,.7)}
:where(svg.i){width:1.1em;height:1.1em;flex:none}
.badge-line svg{width:18px;height:18px;color:var(--blue)}
.older{border-top:1px dashed var(--line);padding-top:8px}
.older summary{cursor:pointer;font-size:.86rem;font-weight:600;color:var(--dim);padding:4px 2px;list-style-position:inside}
.older summary:hover{color:var(--indigo)}
.older .app__files{margin-top:8px}