/* Supreme Building Services — shared pillar stylesheet.
   Palette lifted from index.html so pillars are the same site, not a lookalike:
   navy authority / gold premium / royal-blue interactive on warm-white.
   Syne headings, Inter body, JetBrains Mono for data. */
:root {
  --bg:#FAFAF8; --bg2:#FFFFFF; --bg3:#F0F2F5; --paper:#fff;
  --ink:#1B2A4A; --ink2:#33476B; --muted:#5B6B85;
  --line:#DCE1EA; --line2:#B7C0D1;
  --royal:#2563EB; --navy-deep:#1B2A4A; --royal-tint:#93C5FD;
  --gold:#C5A55A; --gold-deep:#8A6D33; --gold-tint:#ECE0C4; --gold-on-dark:#D8B65F;
  --fh:'Syne','Inter',system-ui,sans-serif; --fb:'Inter',system-ui,sans-serif;
  --fm:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--fb);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--royal);color:var(--paper)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--royal);outline-offset:2px;border-radius:2px}
.foot a:focus-visible{outline-color:var(--gold-on-dark)}

.skip-to-main{position:absolute;top:-100px;left:1rem;background:var(--royal);color:var(--paper);padding:.7rem 1.1rem;z-index:999;border-radius:3px;font-weight:600}
.skip-to-main:focus{top:1rem}

.container{max-width:1120px;margin:0 auto;padding:0 clamp(18px,4vw,34px)}
.narrow{max-width:760px}

/* nav — matches index.html */
.nav{display:flex;align-items:center;gap:14px;padding:16px clamp(18px,4vw,34px);border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(250,250,248,.93);backdrop-filter:blur(10px);z-index:60}
.brand{font-family:var(--fh);font-weight:800;font-size:19px;letter-spacing:-.02em;text-decoration:none}
.brand em{font-style:normal;color:var(--gold-deep)}
.nav-r{margin-left:auto;display:flex;align-items:center;gap:20px}
.nav-link{font-size:14.5px;font-weight:500;color:var(--ink2);text-decoration:none}
.nav-link:hover{color:var(--royal)}
.nav-cta{background:var(--navy-deep);color:var(--paper);padding:9px 17px;border-radius:4px;font-size:14px;font-weight:600;text-decoration:none}
@media(max-width:860px){.nav-r .nav-link{display:none}}

/* breadcrumb */
.crumb{font-family:var(--fm);font-size:12px;color:var(--muted);padding:20px 0 0}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--royal)}

/* hero */
.phero{padding:26px 0 44px}
.kicker{font-family:var(--fm);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-deep);font-weight:600}
h1{font-family:var(--fh);font-weight:800;letter-spacing:-.03em;line-height:1.04;font-size:clamp(32px,5.4vw,56px);margin:14px 0 0;max-width:19ch}
.lede{font-size:clamp(17px,2.1vw,20px);color:var(--ink2);max-width:62ch;margin:20px 0 0}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-block;padding:12px 22px;border-radius:4px;font-weight:600;font-size:15px;text-decoration:none;border:1px solid transparent}
.btn-p{background:var(--navy-deep);color:var(--paper)}
.btn-s{background:transparent;color:var(--ink);border-color:var(--line2)}
.btn-s:hover{border-color:var(--royal);color:var(--royal)}

/* live substrate strip */
.substrate{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden;margin:34px 0}
.substrate div{background:var(--bg2);padding:17px 18px}
.substrate .n{font-family:var(--fm);font-size:23px;font-weight:600;color:var(--navy-deep);letter-spacing:-.02em}
.substrate .l{font-size:12.5px;color:var(--muted);margin-top:3px;line-height:1.45}

/* body copy */
main section{padding:34px 0}
h2{font-family:var(--fh);font-weight:800;letter-spacing:-.02em;font-size:clamp(24px,3.2vw,34px);line-height:1.12;margin:0 0 16px;max-width:24ch}
h3{font-family:var(--fh);font-weight:700;letter-spacing:-.01em;font-size:19px;margin:26px 0 8px}
p{margin:0 0 16px;max-width:70ch}
.muted{color:var(--muted)}
ul.clean{margin:0 0 18px;padding-left:20px;max-width:70ch}
ul.clean li{margin-bottom:9px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:16px;margin:22px 0}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:7px;padding:22px}
.card h3{margin:0 0 7px;font-size:17.5px}
.card p{font-size:14.5px;color:var(--ink2);margin:0 0 13px}
.card a{font-size:14px;font-weight:600;color:var(--royal);text-decoration:none}
.card a:hover{text-decoration:underline}
.tag{display:inline-block;font-family:var(--fm);font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--gold-deep);border:1px solid var(--gold-tint);background:#FCF9F1;padding:3px 8px;border-radius:3px;margin-bottom:11px}

/* callout */
.note{border-left:3px solid var(--gold);background:#FCF9F1;padding:16px 20px;border-radius:0 5px 5px 0;margin:22px 0;font-size:15px;color:var(--ink2)}
.note strong{color:var(--ink)}

/* faq */
.faq details{border-bottom:1px solid var(--line);padding:15px 0}
.faq summary{font-family:var(--fh);font-weight:700;font-size:17px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--gold-deep);font-weight:400;font-size:21px;line-height:1}
.faq details[open] summary::after{content:'\2212'}
.faq p{margin:11px 0 0;color:var(--ink2);font-size:15.5px}

/* cta band */
.band{background:var(--navy-deep);color:var(--paper);border-radius:8px;padding:clamp(26px,4vw,42px);margin:44px 0}
.band h2{color:var(--paper);margin-bottom:12px}
.band p{color:rgba(255,255,255,.8);max-width:58ch}
.band .btn-p{background:var(--gold);color:var(--navy-deep)}
.band .btn-s{color:var(--paper);border-color:rgba(255,255,255,.3)}
.band .btn-s:hover{border-color:var(--gold-on-dark);color:var(--gold-on-dark)}

/* sibling pillar nav */
.siblings{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 0}
.siblings a{font-size:14px;font-weight:500;color:var(--ink2);border:1px solid var(--line);background:var(--bg2);padding:8px 14px;border-radius:20px;text-decoration:none}
.siblings a:hover{border-color:var(--royal);color:var(--royal)}

/* footer */
.foot{background:var(--navy-deep);color:rgba(255,255,255,.72);margin-top:56px;padding:44px 0 30px;font-size:14.5px}
.foot a{color:rgba(255,255,255,.72);text-decoration:none}
.foot a:hover{color:var(--gold-on-dark)}
.foot h5{font-family:var(--fh);color:var(--paper);font-size:14px;letter-spacing:.03em;margin:0 0 11px}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:28px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:7px}
.foot .base{border-top:1px solid rgba(255,255,255,.13);margin-top:30px;padding-top:18px;font-size:13px;color:rgba(255,255,255,.5)}

/* ─── Pillar lead capture ─────────────────────────────────────────────── */
.capture{background:var(--bg2);border:1px solid var(--line);border-radius:8px;padding:clamp(22px,3.4vw,32px);margin:38px 0}
.capture h2{margin-bottom:8px}
.capture .sub{color:var(--ink2);max-width:56ch;margin:0 0 20px}
.cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.cap-grid{grid-template-columns:1fr}}
.capture label{display:block;font-size:12.5px;font-weight:600;color:var(--ink2);letter-spacing:.03em;text-transform:uppercase;margin:0 0 6px}
.capture input,.capture textarea{width:100%;background:var(--bg);border:1px solid var(--line2);border-radius:4px;color:var(--ink);font:400 15px/1.6 var(--fb);padding:11px 13px}
.capture textarea{min-height:104px;resize:vertical}
.capture input:focus,.capture textarea:focus{outline:none;border-color:var(--royal);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.cap-wide{grid-column:1/-1}
.capture button{margin-top:16px;background:var(--navy-deep);color:var(--paper);border:0;border-radius:4px;padding:13px 26px;font:600 15px var(--fb);cursor:pointer}
.capture button:hover{background:#132038}
.capture button:disabled{opacity:.55;cursor:default}
.cap-status{margin:12px 0 0;font-size:14.5px;color:var(--ink2);min-height:1.2em}
.cap-status.ok{color:#15803D;font-weight:600}
.cap-status.err{color:#B91C1C}
.cap-alt{margin:14px 0 0;font-size:14px;color:var(--muted)}
.cap-alt a{color:var(--royal)}

/* explanatory diagrams */
.figure{margin:30px 0}
.figure img{width:100%;height:auto;border:1px solid var(--line);border-radius:7px;background:var(--bg2)}
.figure figcaption{font-size:13px;color:var(--muted);margin-top:9px;max-width:70ch}

/* ─── Cluster articles ────────────────────────────────────────────────── */
.article{max-width:760px}
.article h1{font-size:clamp(28px,4.4vw,44px);max-width:22ch}
.article .meta{font-family:var(--fm);font-size:12px;color:var(--muted);margin:16px 0 0}
.article .meta a{color:var(--royal);text-decoration:none}
.article .answer{font-size:17.5px;line-height:1.65;color:var(--ink);background:var(--bg2);border:1px solid var(--line);border-left:3px solid var(--royal);border-radius:0 6px 6px 0;padding:18px 22px;margin:26px 0}
.article h2{font-size:clamp(21px,2.6vw,27px);max-width:30ch;margin-top:36px}
.article h3{font-size:17.5px}
.article table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article th,.article td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.article th{font-family:var(--fh);font-weight:700;font-size:13.5px;color:var(--ink);background:var(--bg3)}
.article td{color:var(--ink2)}
.pillar-back{display:inline-block;margin:30px 0 0;font-size:14.5px;font-weight:600;color:var(--royal);text-decoration:none}
.pillar-back:hover{text-decoration:underline}
.rel{background:var(--bg2);border:1px solid var(--line);border-radius:7px;padding:20px 22px;margin:34px 0}
.rel h3{margin:0 0 10px;font-size:15px}
.rel ul{margin:0;padding-left:19px}
.rel li{margin-bottom:7px;font-size:14.5px}
.rel a{color:var(--royal);text-decoration:none}
.rel a:hover{text-decoration:underline}
.idx-group{margin:34px 0}
.idx-group h2{margin-bottom:6px}
.idx-group>p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.idx-list{display:grid;gap:12px}
.idx-item{background:var(--bg2);border:1px solid var(--line);border-radius:7px;padding:17px 20px}
.idx-item a{font-family:var(--fh);font-weight:700;font-size:16.5px;color:var(--ink);text-decoration:none}
.idx-item a:hover{color:var(--royal)}
.idx-item p{margin:5px 0 0;font-size:14px;color:var(--ink2)}