/* Pillar guides (single-pillar.php). Everything is scoped under .pillar so the
   theme's Lato/Bootstrap rules stay out and these rules stay in. */

html:has(body.pillar-page){scroll-behavior:smooth;scroll-padding-top:24px}

.pillar{
  --navy:#0B3350;
  --navy-deep:#072436;
  --ink:#13232E;
  --slate:#4A5F6D;
  --cyan:#1AB3E8;
  --link:#0A77A3;
  --mist:#EEF6FA;
  --mist-2:#DDEEF6;
  --line:#CFDFE8;
  --paper:#FFFFFF;
  --ok:#1B7A58;      --ok-bg:#E3F4EC;
  --wait:#9A6508;    --wait-bg:#FFF2D6;
  --stop:#B03A24;    --stop-bg:#FCE9E4;
  --display:"Red Hat Display","Avenir Next","Segoe UI",system-ui,sans-serif;
  --text:"Red Hat Text","Avenir Next","Segoe UI",system-ui,sans-serif;
  --mono:"Red Hat Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --shell:1209px;
  --gutter:20px;
  background:var(--paper);color:var(--ink);font-family:var(--text);font-size:18px;font-weight:400;line-height:1.65;letter-spacing:normal;-webkit-font-smoothing:antialiased;text-align:left
}
.pillar *,.pillar *::before,.pillar *::after{box-sizing:border-box}
.pillar img,.pillar svg{max-width:100%}
.pillar a{color:var(--link);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px;transition:color .15s}
.pillar a:hover{color:var(--navy);text-decoration:underline}
.pillar a:focus-visible,.pillar button:focus-visible,.pillar summary:focus-visible,.pillar textarea:focus-visible,.pillar .scroll:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}
.pillar h1,.pillar h2,.pillar h3,.pillar h4{font-family:var(--display);font-weight:700;line-height:1.25;letter-spacing:normal;color:inherit;margin:0;text-transform:none}
.pillar p{margin:0 0 1.15em}
.pillar ul,.pillar ol{margin:0 0 1.15em}
.pillar strong,.pillar b{font-weight:700}
.pillar label{display:block}
.pillar dd{margin:0}

/* progress */
.pillar-progress{position:fixed;inset:0 0 auto 0;height:4px;background:transparent;z-index:1000;pointer-events:none}
.pillar-progress span{display:block;height:100%;width:0;background:#1AB3E8}

/* hero */
.pillar .hero{background:var(--navy);color:#fff}
.pillar .hero-inner{max-width:var(--shell);margin:0 auto;padding:56px var(--gutter) 60px;display:grid;grid-template-columns:minmax(0,1fr) 470px;gap:48px;align-items:center}
.pillar .crumbs{font-size:15px;color:#B9D9EA;margin:0 0 22px}
.pillar .crumbs a{color:#B9D9EA}
.pillar .crumbs a:hover{color:#fff}
.pillar .hero h1{font-family:var(--display);font-weight:800;font-size:clamp(34px,4.6vw,56px);line-height:1.06;letter-spacing:-0.015em;margin:0;max-width:16ch;color:#fff}
.pillar .hero-sub{font-family:var(--display);font-weight:500;font-size:clamp(20px,2.2vw,26px);line-height:1.3;color:#9FDDF7;margin:14px 0 0}
.pillar .hero-art{display:grid;grid-template-columns:232px 1fr;gap:26px;align-items:center}
.pillar .hcap{font-family:var(--display);font-weight:700;font-size:15px;line-height:1.4;color:#9FDDF7;margin:0 0 10px}
.pillar .phone{width:232px;background:#0A1A24;border:3px solid #2E5D7A;border-radius:34px;padding:10px 9px 14px}
.pillar .screen{background:#fff;border-radius:24px;overflow:hidden;color:#13232E;min-height:330px;display:flex;flex-direction:column}
.pillar .sbar{display:flex;justify-content:space-between;align-items:center;padding:9px 16px 4px;font-size:12px;line-height:1.4;font-weight:700}
.pillar .sbar i{display:inline-block;width:18px;height:9px;border:1.5px solid #13232E;border-radius:3px;position:relative}
.pillar .sbar i::after{content:"";position:absolute;inset:1px 4px 1px 1px;background:#13232E;border-radius:1px}
.pillar .contact{text-align:center;padding:6px 10px 10px;border-bottom:1px solid #E3E9ED;line-height:1.4}
.pillar .avatar{width:34px;height:34px;border-radius:50%;background:#C9D6DE;color:#fff;font-family:var(--display);font-weight:800;font-size:15px;display:grid;place-items:center;margin:0 auto 4px}
.pillar .contact b{display:block;font-size:13px;line-height:1.2}
.pillar .contact span{font-size:11px;color:#6B7F8C}
.pillar .thread{padding:12px 10px;flex:1}
.pillar .stamp{text-align:center;font-size:11px;line-height:1.4;color:#6B7F8C;margin:0 0 8px}
.pillar .bubble{background:#E6EAED;color:#13232E;font-size:14px;line-height:1.35;padding:9px 12px;border-radius:16px 16px 16px 4px;margin:0 26px 0 0;opacity:0;transform:translateY(6px);animation:pillar-pop .35s ease-out 2.4s forwards}
.pillar .compose{margin:0 10px 12px;border:1px solid #D3DCE2;border-radius:16px;padding:6px 12px;font-size:12px;line-height:1.4;color:#93A3AE}
.pillar .rail{list-style:none;margin:0;padding:0;display:grid;gap:0}
.pillar .rail li{position:relative;padding:0 0 20px 26px;font-size:15px;line-height:1.35;color:#7FA6BC;animation:pillar-lit .01s linear forwards}
.pillar .rail li:last-child{padding-bottom:0}
.pillar .rail li::before{content:"";position:absolute;left:0;top:4px;width:12px;height:12px;border-radius:50%;border:2px solid #3C6F8E;background:var(--navy);z-index:1;animation:pillar-dot .01s linear forwards}
.pillar .rail li:not(:last-child)::after{content:"";position:absolute;left:7px;top:10px;bottom:-6px;width:2px;background:#2E5D7A}
.pillar .rail li:nth-child(1),.pillar .rail li:nth-child(1)::before{animation-delay:.5s}
.pillar .rail li:nth-child(2),.pillar .rail li:nth-child(2)::before{animation-delay:1.3s}
.pillar .rail li:nth-child(3),.pillar .rail li:nth-child(3)::before{animation-delay:2.4s}
.pillar .rail b{display:block;font-family:var(--display);font-weight:700;font-size:17px}
@keyframes pillar-lit{to{color:#fff}}
@keyframes pillar-dot{to{background:#1AB3E8;border-color:#1AB3E8}}
@keyframes pillar-pop{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  html:has(body.pillar-page){scroll-behavior:auto}
  .pillar .rail li{color:#fff;animation:none}
  .pillar .rail li::before{background:var(--cyan);border-color:var(--cyan);animation:none}
  .pillar .bubble{opacity:1;transform:none;animation:none}
}

/* layout */
.pillar .layout{max-width:var(--shell);margin:0 auto;padding:48px var(--gutter) 80px;display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:64px;align-items:start}
.pillar article{max-width:800px;min-width:0}
.pillar article p{margin:0 0 1.15em}
.pillar .toc{position:sticky;top:28px;border-left:3px solid var(--mist-2);padding:4px 0 4px 20px}
.pillar .toc h2{font-family:var(--display);font-size:16px;font-weight:700;margin:0 0 12px;color:var(--navy)}
.pillar .toc ol{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:15px;line-height:1.35}
.pillar .toc a{color:var(--slate);text-decoration:none;display:block}
.pillar .toc a:hover{color:var(--navy);text-decoration:underline}
.pillar .toc a.on{color:var(--navy);font-weight:700}
.pillar .toc a.on::before{content:"";position:absolute;left:-3px;width:3px;height:1.35em;background:var(--cyan)}
.pillar .toc .tool{margin:20px 0 0}
.pillar .toc .tool a{display:block;background:var(--navy);color:#fff;font-family:var(--display);font-weight:800;font-size:16px;line-height:1.3;padding:12px 14px;border-radius:4px;text-decoration:none}
.pillar .toc .tool a:hover{background:var(--link);color:#fff;text-decoration:none}

/* headings */
.pillar article h2{font-family:var(--display);font-weight:800;font-size:clamp(26px,3vw,34px);line-height:1.15;letter-spacing:-0.01em;color:var(--navy);margin:72px 0 18px;display:grid;grid-template-columns:auto 1fr;column-gap:16px;align-items:baseline}
.pillar article h2 .n{font-size:.62em;font-weight:700;color:var(--navy);background:var(--mist-2);border-radius:4px;padding:5px 10px;line-height:1;position:relative;top:-4px}
.pillar article h2.plain{display:block}
.pillar article h3{font-family:var(--display);font-weight:700;font-size:22px;line-height:1.25;color:var(--ink);margin:40px 0 12px}

/* key takeaways */
.pillar .takeaways{background:var(--mist);border-top:4px solid var(--cyan);padding:26px 30px 22px;font-weight:700}
.pillar .takeaways h2{font-family:var(--display);font-size:20px;font-weight:800;color:var(--navy);margin:0 0 12px;display:block}
.pillar .takeaways p{margin:0 0 12px}
.pillar .takeaways ul{margin:0 0 14px;padding-left:22px}
.pillar .takeaways li{margin-bottom:8px}
.pillar .takeaways li::marker{color:var(--cyan)}
.pillar hr{border:0;border-top:1px solid var(--line);margin:34px 0;height:0}

/* figures */
.pillar figure{margin:34px 0}
.pillar figcaption{font-size:15px;color:var(--slate);margin-top:10px;line-height:1.45}
.pillar figcaption b{color:var(--ink)}
.pillar .stat{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center;border:1px solid var(--line);border-left:6px solid var(--navy);padding:22px 26px}
.pillar .stat .big{font-family:var(--display);font-weight:800;font-size:clamp(40px,6vw,64px);line-height:1;color:var(--navy);letter-spacing:-0.02em}
.pillar .stat p{margin:0;font-size:17px;line-height:1.45}
.pillar .stat small{display:block;color:var(--slate);font-size:14px;margin-top:6px}

.pillar .split{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line)}
.pillar .split > div{padding:22px 24px}
.pillar .split > div:first-child{background:var(--mist);border-right:1px solid var(--line)}
.pillar .split h4{font-family:var(--display);font-size:18px;margin:0 0 12px;color:var(--navy)}
.pillar .split ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:16.5px;line-height:1.4}
.pillar .split li{padding-left:26px;position:relative}
.pillar .split li::before{content:"";position:absolute;left:0;top:.42em;width:12px;height:12px;background:var(--cyan)}
.pillar .split > div:last-child li::before{background:none;border:2.5px solid var(--navy);border-radius:50%}

.pillar .scroll{overflow-x:auto;border:1px solid var(--line);background:#fff}
.pillar .scroll svg{display:block;min-width:820px;width:100%;height:auto}

.pillar .pull{margin:36px 0;padding:6px 0 6px 26px;border-left:6px solid var(--cyan);font-family:var(--display);font-weight:700;font-size:clamp(22px,2.6vw,28px);line-height:1.3;color:var(--navy)}

/* lifecycle list */
.pillar ol.stages{list-style:none;counter-reset:s;margin:20px 0 0;padding:0;display:grid;gap:14px}
.pillar ol.stages li{counter-increment:s;display:grid;grid-template-columns:38px 1fr;gap:14px}
.pillar ol.stages li::before{content:counter(s);font-family:var(--display);font-weight:800;font-size:17px;line-height:1;width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--navy);color:#fff;margin-top:2px}

/* code */
.pillar .code{background:var(--navy-deep);color:#E6F3FA;margin:24px 0;border-radius:6px;overflow:hidden}
.pillar .code-bar{display:flex;justify-content:space-between;align-items:center;padding:8px 10px 8px 16px;background:#0C3049;font-size:14px;line-height:1.4;color:#9CC4DA}
.pillar .code button{font:inherit;font-size:14px;color:#fff;background:transparent;border:1px solid #3B7397;border-radius:4px;padding:4px 12px;cursor:pointer}
.pillar .code button:hover{background:#12456A}
.pillar .code pre{margin:0;padding:18px 18px 20px;overflow-x:auto;font-family:var(--mono);font-size:14.5px;line-height:1.6;color:inherit;background:none;border:0;white-space:pre}
.pillar code{font-family:var(--mono);font-size:.9em;color:inherit;background:var(--mist);padding:1px 6px;border-radius:3px}
.pillar .code code{background:none;padding:0;font-size:inherit;color:inherit}
.pillar .resp{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:0 0 20px;font-size:15.5px}
.pillar .chip{font-family:var(--mono);font-size:14px;line-height:1.4;padding:5px 10px;border-radius:4px;background:var(--ok-bg);color:var(--ok);font-weight:500}
.pillar .chip.id{background:var(--mist);color:var(--navy)}
.pillar .chip.no{background:var(--wait-bg);color:var(--wait);font-family:var(--text)}

/* habits */
.pillar .habits{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.pillar .habits div{padding:20px 20px 18px;border-right:1px solid var(--line)}
.pillar .habits div:last-child{border-right:0}
.pillar .habits svg{width:34px;height:34px;display:block;margin-bottom:10px}
.pillar .habits h4{font-family:var(--display);font-size:18px;margin:0 0 6px;color:var(--navy)}
.pillar .habits p{margin:0;font-size:16px;line-height:1.45}

/* tables */
.pillar .tbl{overflow-x:auto;margin:26px 0}
.pillar table{border-collapse:collapse;width:100%;font-size:16.5px;line-height:1.4;min-width:560px;margin:0;background:none}
.pillar th,.pillar td{text-align:left;vertical-align:top;padding:12px 14px;border:0;border-bottom:1px solid var(--line)}
.pillar thead th{font-family:var(--display);font-weight:700;background:var(--navy);color:#fff;border-bottom:0}
.pillar tbody th{font-weight:700;color:var(--navy);width:22%}
.pillar tbody tr:nth-child(even){background:#F7FBFD}
.pillar .cap tbody th{width:44%;font-weight:500;color:var(--ink)}
.pillar .dot{display:inline-block;width:11px;height:11px;border-radius:50%;margin-right:9px;background:var(--slate);position:relative;top:0}
.pillar .dot.std{background:var(--ok)} .pillar .dot.var{background:#E0A021} .pillar .dot.req{background:var(--navy)}
.pillar .legend{display:flex;flex-wrap:wrap;gap:18px;font-size:15px;color:var(--slate);margin:-10px 0 24px}

/* calculator */
.pillar .calc{border:2px solid var(--navy);margin:34px 0;background:#fff}
.pillar .calc-head{background:var(--navy);color:#fff;padding:14px 20px}
.pillar .calc-head h4{font-family:var(--display);font-size:20px;margin:0;color:#fff}
.pillar .calc-head p{margin:2px 0 0;font-size:15.5px;line-height:1.45;color:#BFE3F5}
.pillar .calc-body{padding:20px}
.pillar .calc label{font-weight:700;font-size:16px;display:block;margin:0 0 6px}
.pillar .calc textarea{display:block;width:100%;min-height:104px;font:inherit;font-size:17px;line-height:1.45;padding:12px;border:1.5px solid #8FAFC1;border-radius:4px;resize:vertical;color:var(--ink);background:#fff;margin:0}
.pillar .calc-btns{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 18px}
.pillar .calc-btns button{font:inherit;font-size:15px;font-weight:500;line-height:1.4;background:var(--mist);color:var(--navy);border:1px solid var(--line);border-radius:4px;padding:7px 12px;cursor:pointer}
.pillar .calc-btns button:hover{background:var(--mist-2)}
.pillar .readout{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line)}
.pillar .readout div{padding:12px 14px;border-right:1px solid var(--line)}
.pillar .readout div:last-child{border-right:0}
.pillar .readout dt{font-size:14px;font-weight:400;line-height:1.4;color:var(--slate);margin:0}
.pillar .readout dd{margin:2px 0 0;font-family:var(--display);font-weight:800;font-size:26px;color:var(--navy);line-height:1.15}
.pillar .readout dd.uni{color:var(--stop)}
.pillar dl.readout{margin:0}
.pillar .segs{display:flex;flex-wrap:wrap;gap:6px;margin:16px 0 0}
.pillar .seg{height:30px;min-width:46px;flex:1 1 46px;max-width:120px;background:var(--cyan);border-radius:3px;display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--navy-deep)}
.pillar .calc-note{margin:14px 0 0;font-size:16px;line-height:1.45}
.pillar .calc-note.warn{background:var(--stop-bg);color:#7A2416;padding:10px 12px;border-left:4px solid var(--stop)}
.pillar .calc-note.fine{background:var(--ok-bg);color:#11553D;padding:10px 12px;border-left:4px solid var(--ok)}
.pillar .calc-fine{font-size:14px;line-height:1.45;color:var(--slate);margin:12px 0 0}

/* checklist */
.pillar .check{background:var(--mist);padding:22px 26px}
.pillar .check h4{font-family:var(--display);font-size:18px;margin:0 0 12px;color:var(--navy)}
.pillar .check ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px 28px;font-size:16.5px;line-height:1.4}
.pillar .check li{padding-left:32px;position:relative}
.pillar .check li::before{content:"";position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:4px;background:var(--navy)}
.pillar .check li::after{content:"";position:absolute;left:7px;top:4px;width:6px;height:11px;border:solid #fff;border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}

/* states */
.pillar .states{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.pillar .states div{padding:18px 20px 18px;border:1px solid var(--line);border-right:0;position:relative;background:#fff}
.pillar .states div:last-child{border-right:1px solid var(--line);border-style:dashed;border-left-style:solid}
.pillar .states div:not(:last-child)::after{content:"";position:absolute;right:-9px;top:50%;width:16px;height:16px;background:#fff;border-top:1px solid var(--line);border-right:1px solid var(--line);transform:translateY(-50%) rotate(45deg);z-index:1}
.pillar .states h4{font-family:var(--display);font-size:19px;margin:0 0 4px;color:var(--navy)}
.pillar .states p{margin:0;font-size:16px;line-height:1.4}
.pillar .states small{display:block;margin-top:8px;font-size:14px;line-height:1.4;color:var(--wait);font-weight:500}

/* failures */
.pillar ul.fail{list-style:none;margin:22px 0;padding:0;display:grid;gap:12px}
.pillar ul.fail li{padding:16px 20px;border-left:6px solid;font-size:17px;line-height:1.55}
.pillar ul.fail li.t{background:var(--wait-bg);border-color:#E0A021}
.pillar ul.fail li.p{background:var(--stop-bg);border-color:var(--stop)}
.pillar ul.fail li.r{background:var(--mist);border-color:var(--navy)}
.pillar ul.fail .act{display:inline-block;font-family:var(--display);font-weight:800;font-size:14px;line-height:1.5;border-radius:3px;padding:2px 9px;margin-right:10px;color:#fff;vertical-align:2px}
.pillar .t .act{background:var(--wait)} .pillar .p .act{background:var(--stop)} .pillar .r .act{background:var(--navy)}

/* decisions */
.pillar .decide{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.pillar .decide a{display:grid;grid-template-columns:40px 1fr;gap:12px;align-items:center;padding:16px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-decoration:none;color:var(--navy);font-family:var(--display);font-weight:700;font-size:17px;line-height:1.25}
.pillar .decide a:hover{background:var(--mist);text-decoration:none}
.pillar .decide svg{width:36px;height:36px}

.pillar .flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:8px}
.pillar .flow div{background:var(--mist);padding:14px 16px;font-size:16px;line-height:1.4}
.pillar .flow div b{display:block;font-family:var(--display);color:var(--navy);font-size:17px;margin-bottom:2px}
.pillar .flow span{align-self:center;width:22px;height:2px;background:var(--navy);position:relative}
.pillar .flow span::after{content:"";position:absolute;right:-1px;top:-5px;border:6px solid transparent;border-left-color:var(--navy);border-right:0}
.pillar .deadline{margin-top:10px;background:var(--navy);color:#fff;padding:12px 16px;font-size:16px;line-height:1.4;display:flex;gap:14px;align-items:baseline;flex-wrap:wrap}
.pillar .deadline b{font-family:var(--display);font-size:22px;font-weight:800;color:#9FDDF7}

/* hub */
.pillar .hub{border:1px solid var(--line);padding:22px}
.pillar .hub-center{font-family:var(--display);font-weight:800;font-size:19px;line-height:1.3;background:var(--navy);color:#fff;text-align:center;padding:12px;border-radius:999px;max-width:300px;margin:0 auto}
.pillar .hub-stem{width:2px;height:20px;background:var(--navy);margin:0 auto}
.pillar .hub-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;border-top:2px solid var(--navy);padding-top:18px}
.pillar .hub-groups h4{font-family:var(--display);font-size:18px;margin:0 0 8px;color:var(--navy)}
.pillar .hub-groups ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;font-size:15.5px;line-height:1.3}
.pillar .hub-groups li{background:var(--mist);padding:7px 10px}

/* cta */
.pillar .cta{background:var(--navy);color:#fff;padding:40px 40px 34px;margin-top:72px}
.pillar article .cta h2{color:#fff;margin:0 0 16px;display:block}
.pillar .cta a{color:#9FDDF7;font-weight:700}
.pillar .cta a:hover{color:#fff}
.pillar .cta p:last-child{margin-bottom:0}

/* faq */
.pillar .faq details{border-bottom:1px solid var(--line)}
.pillar .faq details:first-of-type{border-top:1px solid var(--line)}
.pillar .faq summary{display:block;list-style:none;cursor:pointer;padding:18px 44px 18px 0;position:relative}
.pillar .faq summary::-webkit-details-marker{display:none}
.pillar .faq summary h3{margin:0;font-size:20px;display:inline}
.pillar .faq summary::after{content:"";position:absolute;right:8px;top:26px;width:11px;height:11px;border-right:2.5px solid var(--navy);border-bottom:2.5px solid var(--navy);transform:rotate(45deg);transition:transform .15s}
.pillar .faq details[open] summary::after{transform:rotate(-135deg);top:31px}
.pillar .faq details p{margin:0 0 20px;max-width:68ch}

/* the theme's related-articles band sits on the grey page background */
.pillar-page .related{margin-top:0}

@media (max-width:980px){
  .pillar .hero-inner{grid-template-columns:1fr;gap:32px;padding:40px var(--gutter) 44px}
  .pillar .layout{grid-template-columns:1fr;gap:28px;padding:28px var(--gutter) 60px}
  .pillar .toc{position:static;order:-1;border-left:0;padding:16px 18px;background:var(--mist)}
  .pillar .toc a.on::before{display:none}
}
@media (max-width:640px){
  .pillar{font-size:17px}
  .pillar .split,.pillar .habits,.pillar .states,.pillar .decide,.pillar .check ul,.pillar .hub-groups{grid-template-columns:1fr}
  .pillar .split > div:first-child{border-right:0;border-bottom:1px solid var(--line)}
  .pillar .habits div{border-right:0;border-bottom:1px solid var(--line)}
  .pillar .habits div:last-child{border-bottom:0}
  .pillar .states div{border-right:1px solid var(--line);border-bottom:0}
  .pillar .states div:last-child{border-bottom:1px dashed var(--line)}
  .pillar .states div:not(:last-child)::after{display:none}
  .pillar .readout{grid-template-columns:1fr 1fr}
  .pillar .readout div:nth-child(2){border-right:0}
  .pillar .readout div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .pillar .flow{grid-template-columns:1fr}
  .pillar .flow span{width:2px;height:18px;justify-self:center}
  .pillar .flow span::after{right:-5px;top:auto;bottom:-1px;border:6px solid transparent;border-top-color:var(--navy);border-bottom:0}
  .pillar .stat{grid-template-columns:1fr;gap:8px}
  .pillar .hero-art{grid-template-columns:1fr;gap:22px}
  .pillar .cta{padding:28px 22px}
  .pillar .takeaways{padding:22px 20px 18px}
}

/* ---- VoIP origination/termination and SIP trunking guides ---- */

.pillar .call{background:var(--navy-deep);border:1px solid #1F5578;border-radius:14px;padding:20px 22px 22px}
.pillar .call-ends{display:flex;justify-content:space-between;font-family:var(--display);font-weight:700;font-size:15px;color:#fff;margin-bottom:14px}
.pillar .call-ends span{border:1.5px solid #3C6F8E;border-radius:4px;padding:4px 10px}
.pillar .track{margin-top:14px}
.pillar .track-name{font-size:14px;color:#9FDDF7;margin:0 0 7px;font-weight:500}
.pillar .sig{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;list-style:none;margin:0;padding:0}
.pillar .sig li{font-family:var(--mono);font-size:13px;text-align:center;padding:8px 2px;border-radius:4px;border:1.5px solid #2E5D7A;color:#7FA6BC;animation:pillar-sigon .01s linear forwards}
.pillar .sig li:nth-child(1){animation-delay:.5s}
.pillar .sig li:nth-child(2){animation-delay:1.2s}
.pillar .sig li:nth-child(3){animation-delay:1.9s}
.pillar .sig li:nth-child(4){animation-delay:3.6s}
@keyframes pillar-sigon{to{color:var(--navy-deep);background:var(--cyan);border-color:var(--cyan)}}
.pillar .rtp{height:38px;border-radius:4px;border:1.5px dashed #2E5D7A;display:grid;place-items:center;font-size:14px;color:#7FA6BC;position:relative;overflow:hidden}
.pillar .rtp::before{content:"";position:absolute;inset:0;background:#F2A93B;transform:scaleX(0);transform-origin:left;animation:pillar-rtpon 1.5s linear 2s forwards}
.pillar .rtp span{position:relative;animation:pillar-rtptxt .01s linear 2.2s forwards;font-weight:700}
@keyframes pillar-rtpon{to{transform:scaleX(1)}}
@keyframes pillar-rtptxt{to{color:#3A2600}}
@media (prefers-reduced-motion:reduce){
  .pillar .sig li{animation:none;color:var(--navy-deep);background:var(--cyan);border-color:var(--cyan)}
  .pillar .rtp::before{animation:none;transform:none}
  .pillar .rtp span{animation:none;color:#3A2600}
}
.pillar .pri{border:1px solid var(--line);padding:22px 24px}
.pillar .pri-row{display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:center;margin-bottom:16px}
.pillar .pri-row:last-of-type{margin-bottom:0}
.pillar .pri-row b{font-family:var(--display);font-size:17px;color:var(--navy);line-height:1.25}
.pillar .pri-row b small{display:block;font-family:var(--text);font-weight:400;font-size:14px;color:var(--slate)}
.pillar .cells{display:grid;grid-template-columns:repeat(23,1fr);gap:3px}
.pillar .cells i{aspect-ratio:1;background:var(--navy);border-radius:2px}
.pillar .cells i.idle{background:repeating-linear-gradient(45deg,#E0A021 0 3px,#FFF2D6 3px 6px)}
.pillar .pri-key{display:flex;gap:20px;flex-wrap:wrap;font-size:14.5px;color:var(--slate);margin-top:14px}
.pillar .pri-key i{display:inline-block;width:12px;height:12px;border-radius:2px;background:var(--navy);margin-right:7px}
.pillar .pri-key i.idle{background:repeating-linear-gradient(45deg,#E0A021 0 3px,#FFF2D6 3px 6px)}
.pillar .ladder{border:2px solid var(--navy);margin:34px 0;background:#fff}
.pillar .ladder-head{background:var(--navy);color:#fff;padding:14px 20px}
.pillar .ladder-head h4{font-family:var(--display);font-size:20px;margin:0}
.pillar .ladder-head p{margin:2px 0 0;font-size:15.5px;color:#BFE3F5}
.pillar .ladder-ctrl{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line)}
.pillar .ladder-ctrl button,.pillar .pick-opts button{font:inherit;font-size:15px;font-weight:500;background:var(--mist);color:var(--navy);border:1px solid var(--line);border-radius:4px;padding:7px 12px;cursor:pointer}
.pillar .ladder-ctrl button:hover,.pillar .pick-opts button:hover{background:var(--mist-2)}
.pillar .ladder-ctrl button.primary{background:var(--navy);color:#fff;border-color:var(--navy)}
.pillar .ladder-ctrl label{font-size:15px;margin-left:auto;display:flex;gap:8px;align-items:center;cursor:pointer}
.pillar .ladder-ctrl input{width:18px;height:18px;accent-color:var(--navy)}
.pillar .ladder-now{padding:14px 20px;background:var(--mist);font-size:16.5px;line-height:1.5;min-height:84px}
.pillar .ladder-now b.count{display:block;font-family:var(--display);font-size:14px;color:var(--link);margin-bottom:2px}
.pillar .ladder .scroll{border:0}
.pillar .ladder .scroll svg{min-width:740px}
.pillar .ladder svg [data-step]{transition:opacity .2s}
.pillar .ladder svg .dim{opacity:.14}
.pillar .ladder svg .hide{display:none}
.pillar .versus{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line)}
.pillar .versus > div{padding:22px 24px}
.pillar .versus > div:first-child{border-right:1px solid var(--line)}
.pillar .versus h4{font-family:var(--display);font-size:19px;margin:0 0 4px;color:var(--navy)}
.pillar .versus .how{font-size:16px;line-height:1.45;margin:0 0 12px}
.pillar .versus .good{font-size:15.5px;line-height:1.4;background:var(--mist);padding:9px 12px;margin:0}
.pillar .versus .good b{color:var(--navy)}
.pillar .layers{display:grid;gap:8px}
.pillar .layers div{display:grid;grid-template-columns:190px 1fr;gap:18px;align-items:center;padding:14px 18px;background:var(--mist);border-left:6px solid var(--cyan);font-size:16.5px;line-height:1.4}
.pillar .layers div:nth-child(2){border-color:#E0A021}
.pillar .layers div:nth-child(3){border-color:var(--navy)}
.pillar .layers b{font-family:var(--display);font-size:18px;color:var(--navy)}
.pillar .picker{border:2px solid var(--navy);margin:34px 0;background:#fff}
.pillar .pick-opts{display:grid;gap:8px;padding:18px 20px}
.pillar .pick-opts button{text-align:left;font-size:16px;padding:11px 14px;line-height:1.35}
.pillar .pick-opts button[aria-pressed="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}
.pillar .pick-out{margin:0 20px 20px;padding:16px 18px;background:var(--ok-bg);border-left:6px solid var(--ok);font-size:16.5px;line-height:1.45}
.pillar .pick-out b{display:block;font-family:var(--display);font-size:22px;color:#11553D;margin-bottom:2px}
.pillar .pick-out.empty{background:var(--mist);border-color:var(--line);color:var(--slate)}
.pillar .bars{border:1px solid var(--line);padding:22px 24px}
.pillar .bar-row{display:grid;grid-template-columns:70px 1fr;gap:14px;align-items:center;margin-bottom:12px;font-size:16px}
.pillar .bar-row b{font-family:var(--display);color:var(--navy);font-size:17px}
.pillar .bar-row span{display:block;background:var(--navy);color:#fff;padding:8px 12px;font-weight:500;font-size:15.5px}
.pillar .bar-row span.small{background:var(--cyan);color:var(--navy-deep);width:34%}
.pillar .bars p{margin:6px 0 0;font-size:14.5px;color:var(--slate)}
.pillar .four{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line);list-style:none;margin:22px 0;padding:0}
.pillar .four li{padding:18px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);font-size:16.5px;line-height:1.45}
.pillar .four li strong{display:block;font-family:var(--display);font-size:18px;color:var(--navy);margin-bottom:3px}
.pillar .three{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.pillar .three div{background:var(--navy);color:#fff;padding:16px 18px;font-family:var(--display);font-weight:700;font-size:18px;line-height:1.25}
.pillar .three div small{display:block;font-family:var(--text);font-weight:400;font-size:14.5px;color:#BFE3F5;margin-bottom:4px}
.pillar ul.sheet{list-style:none;margin:22px 0;padding:8px 24px;border:1px solid var(--line);border-top:6px solid var(--navy);font-size:16.5px;max-width:560px}
.pillar ul.sheet li{padding:11px 0 11px 30px;border-bottom:1px dashed var(--line);position:relative}
.pillar ul.sheet li:last-child{border-bottom:0}
.pillar ul.sheet li::before{content:"";position:absolute;left:2px;top:17px;width:14px;height:14px;border:2px solid var(--navy);border-radius:3px}
.pillar .hub-groups.g3{grid-template-columns:repeat(3,1fr)}
.pillar .toc .tool + .tool{margin-top:8px}
@media (max-width:640px){
  .pillar .versus,.pillar .four,.pillar .three,.pillar .hub-groups.g3{grid-template-columns:1fr}
  .pillar .versus > div:first-child{border-right:0;border-bottom:1px solid var(--line)}
  .pillar .layers div{grid-template-columns:1fr;gap:4px}
  .pillar .pri-row{grid-template-columns:1fr;gap:8px}
  .pillar .ladder-ctrl label{margin-left:0}
}
.pillar .dir{height:40px;border-radius:4px;border:1.5px dashed #2E5D7A;position:relative;overflow:hidden;display:grid;place-items:center;font-size:14px;color:#7FA6BC}
.pillar .dir::before{content:"";position:absolute;inset:0;transform:scaleX(0);animation:pillar-rtpon 1.2s linear forwards}
.pillar .dir.in::before{background:var(--cyan);transform-origin:right;animation-delay:.5s}
.pillar .dir.out::before{background:#F2A93B;transform-origin:left;animation-delay:2.1s}
.pillar .dir span{position:relative;font-weight:700;animation:pillar-dirtxt .01s linear forwards}
.pillar .dir.in span{animation-delay:1s}
.pillar .dir.out span{animation-delay:2.6s}
@keyframes pillar-dirtxt{to{color:var(--navy-deep)}}
@media (prefers-reduced-motion:reduce){
  .pillar .dir::before{animation:none;transform:none}
  .pillar .dir span{animation:none;color:var(--navy-deep)}
}
.pillar .ends{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center;border:1px solid var(--line);padding:22px 24px}
.pillar .ends div{background:var(--mist);padding:14px 16px;font-size:16px;line-height:1.4}
.pillar .ends div b{display:block;font-family:var(--display);font-size:18px;color:var(--navy)}
.pillar .ends .go{background:none;padding:0 0 14px;text-align:center;font-size:14.5px;color:var(--slate);min-width:150px;position:relative}
.pillar .ends .go::after{content:"";position:absolute;left:0;right:8px;bottom:4px;height:3px;background:var(--navy)}
.pillar .ends .go::before{content:"";position:absolute;right:0;bottom:-2px;border:7.5px solid transparent;border-left-color:var(--navy);border-right:0}
.pillar .versus .tag{display:inline-block;font-family:var(--display);font-weight:800;font-size:14px;color:#fff;background:var(--navy);border-radius:3px;padding:2px 9px;margin-bottom:8px}
.pillar .versus > div:last-child .tag{background:#9A6508}
.pillar .same{text-align:center;font-family:var(--display);font-weight:700;font-size:15px;color:var(--ok);background:var(--ok-bg);padding:8px;border:1px solid var(--line);border-top:0}
.pillar .mode{display:flex;gap:0;margin-right:8px}
.pillar .mode button{border-radius:0}
.pillar .mode button:first-child{border-radius:4px 0 0 4px}
.pillar .mode button:last-child{border-radius:0 4px 4px 0;border-left:0}
.pillar .ladder-ctrl button[aria-pressed="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}
.pillar .ladder svg [data-lane]{transition:opacity .2s}
.pillar .qcols{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);margin:22px 0}
.pillar .qcols > div{padding:20px 22px}
.pillar .qcols > div:first-child{border-right:1px solid var(--line)}
.pillar .qcols h4{font-family:var(--display);font-size:18px;color:var(--navy);margin:0 0 4px}
.pillar .qcols p{margin:0 0 10px;font-size:16.5px}
.pillar .qcols ul{margin:0;padding-left:20px;font-size:16.5px;line-height:1.45;display:grid;gap:9px}
.pillar .qcols li::marker{color:var(--cyan)}
.pillar .qb{border:2px solid var(--navy);margin:34px 0;background:#fff}
.pillar .qb-pick{display:flex;flex-wrap:wrap;gap:22px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line);font-size:16px}
.pillar .qb-pick label{display:flex;gap:8px;align-items:center;cursor:pointer;font-weight:500}
.pillar .qb-pick input,.pillar .qb-list input{width:18px;height:18px;accent-color:var(--navy);flex:none}
.pillar .qb-pick button{font:inherit;font-size:15px;font-weight:500;background:var(--navy);color:#fff;border:1px solid var(--navy);border-radius:4px;padding:7px 14px;cursor:pointer;margin-left:auto}
.pillar .qb-list{list-style:none;margin:0;padding:10px 20px 16px;display:grid;gap:0}
.pillar .qb-list li{border-bottom:1px dashed var(--line)}
.pillar .qb-list li:last-child{border-bottom:0}
.pillar .qb-list label{display:grid;grid-template-columns:18px 1fr;gap:12px;padding:11px 0;font-size:16.5px;line-height:1.45;cursor:pointer;align-items:start}
.pillar .qb-list input{margin-top:4px}
.pillar .qb-list input:checked + span{color:var(--slate);text-decoration:line-through}
.pillar .qb-list small{display:inline-block;font-family:var(--display);font-weight:700;font-size:12.5px;border-radius:3px;padding:1px 7px;margin-right:8px;background:var(--mist-2);color:var(--navy);vertical-align:1px}
.pillar .qb-list small.t{background:var(--wait-bg);color:var(--wait)}
.pillar .qb-empty{padding:16px 20px;color:var(--slate);font-size:16px}
.pillar .spectrum{border:1px solid var(--line);padding:22px 24px}
.pillar .spec-bar{display:grid;grid-template-columns:1fr 1.4fr 1.4fr;gap:4px}
.pillar .spec-bar div{padding:14px 16px;font-size:15.5px;line-height:1.4;color:#fff}
.pillar .spec-bar div b{display:block;font-family:var(--display);font-size:17px;margin-bottom:2px}
.pillar .spec-bar .g{background:var(--stop)}
.pillar .spec-bar .l{background:#9A6508}
.pillar .spec-bar .q{background:var(--ok)}
.pillar .spec-ax{display:flex;justify-content:space-between;font-size:14.5px;color:var(--slate);margin-top:8px}
.pillar .diag{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.pillar .diag div{border:1px solid var(--line);border-top:6px solid var(--navy);padding:16px 18px;font-size:16.5px;line-height:1.4}
.pillar .diag div:last-child{border-top-color:var(--stop)}
.pillar .diag span{display:inline-block;font-family:var(--mono);font-size:14px;padding:3px 8px;border-radius:3px;margin:0 6px 8px 0;background:var(--stop-bg);color:var(--stop)}
.pillar .diag span.ok{background:var(--ok-bg);color:var(--ok)}
.pillar .diag b{display:block;font-family:var(--display);font-size:18px;color:var(--navy)}
.pillar .decide.d3{grid-template-columns:repeat(3,1fr)}
@media (max-width:640px){
  .pillar .decide.d3{grid-template-columns:1fr}
}
.pillar .three.att div:first-child{background:var(--ok)}
.pillar .three.att div small{color:#E6F3FA}
@media (max-width:640px){
  .pillar .ends,.pillar .qcols,.pillar .diag,.pillar .spec-bar{grid-template-columns:1fr}
  .pillar .ends .go{min-width:0}
  .pillar .qcols > div:first-child{border-right:0;border-bottom:1px solid var(--line)}
  .pillar .qb-pick button{margin-left:0}
}