:root{
  --paper:#f6f8fa; --white:#ffffff; --ink:#172029; --navy:#0f1b27;
  --blue:#1d7fd6; --hair:#dde5ec; --muted:#5b6b7a; --amber:#e8a13a; --led:#38d39f;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:16.5px;line-height:1.62}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.22;color:var(--ink);margin:0 0 .5em}
h1{font-size:1.95rem;letter-spacing:-.01em}
h2{font-size:1.34rem;margin-top:1.6em}
h3{font-size:1.08rem;margin-top:1.3em}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.3em 0}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:820px;margin:0 auto;padding:0 20px}

/* ---------- header (slim bar) ---------- */
.hdr{position:sticky;top:0;z-index:50;background:var(--white);
  border-bottom:1px solid var(--hair)}
.hdr-in{max-width:1080px;margin:0 auto;padding:8px 20px;display:flex;align-items:center;gap:12px}
.logo{display:flex;align-items:center;gap:9px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo svg{display:block;flex:0 0 auto}
.wordmark{font-weight:700;font-size:1.02rem;letter-spacing:-.01em}
.wordmark span{color:var(--muted);font-weight:600}
.chip{font-family:var(--mono);font-size:.63rem;letter-spacing:.09em;text-transform:uppercase;
  background:var(--paper);border:1px solid var(--hair);border-radius:4px;padding:3px 7px;color:var(--muted);white-space:nowrap}
.hdr .tel{margin-left:auto;font-family:var(--mono);font-size:.76rem;color:var(--ink);white-space:nowrap}
.hdr .tel b{font-weight:600}

/* ---------- patch-panel navigation ---------- */
.patch{background:var(--navy);border-bottom:1px solid #0a141d}
.patch-in{max-width:1080px;margin:0 auto;padding:9px 12px;display:flex;flex-wrap:wrap;
  gap:4px 2px;justify-content:center;align-items:flex-start}
.port{position:relative;display:flex;flex-direction:column;align-items:center;gap:5px;
  padding:4px 9px 10px;color:#9fb4c6;text-decoration:none;border-radius:4px}
.port:hover{text-decoration:none;color:#ffd9a0}
.port:hover .jack{border-color:var(--amber);background:#1a2734}
.port:hover .jack::before{background:var(--amber)}
.jack{position:relative;width:20px;height:22px;border:2px solid #3f566b;border-radius:3px;
  background:#132234;transition:border-color .15s,background .15s}
.jack::before{content:"";position:absolute;top:-2px;left:50%;transform:translateX(-50%);
  width:8px;height:5px;border-radius:0 0 2px 2px;background:#3f566b;transition:background .15s}
.jack::after{content:"";position:absolute;top:8px;left:5px;width:10px;height:2px;
  box-shadow:0 4px 0 #2c3f51;background:#2c3f51;border-radius:1px}
.lbl{font-family:var(--mono);font-size:.56rem;letter-spacing:.11em;text-transform:uppercase}
.port.active{color:#fff}
.port.active .jack{border-color:var(--led);background:#14202c}
.port.active .jack::before{background:var(--led)}
.port.active .lbl{color:#c9f3df}
.port.active .jack .led{position:absolute;top:-3px;right:-4px;width:6px;height:6px;border-radius:50%;
  background:var(--led);box-shadow:0 0 5px var(--led)}
/* CSS patch cable curving out of the active port */
.port.active::after{content:"";position:absolute;top:30px;left:50%;width:20px;height:30px;
  border:3px solid var(--blue);border-top:none;border-left:none;
  border-bottom-right-radius:14px;transform:translateX(-2px);pointer-events:none;z-index:-1}
@media(max-width:820px){
  .patch-in{gap:5px 2px}
  .port{padding:4px 6px 9px}
  .port.active::after{display:none}
}
@media(max-width:640px){
  .hdr-in{padding:7px 14px;gap:8px}
  .chip{display:none}
  .hdr .tel{font-size:.7rem}
}

/* ---------- page header block ---------- */
.pagehead{padding:30px 0 14px}
.chipline{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0 0}
.hr{height:1px;background:var(--hair);border:0;margin:16px 0 0}

/* ---------- layout helpers ---------- */
main{padding-bottom:44px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin:20px 0}
.two{display:grid;gap:22px;grid-template-columns:1fr 1fr;margin:20px 0;align-items:start}
@media(max-width:760px){.two{grid-template-columns:1fr}}
figure{margin:22px 0}
figure img{border:1px solid var(--hair);border-radius:6px;width:100%}
figcaption{font-family:var(--mono);font-size:.7rem;color:var(--muted);margin-top:6px;letter-spacing:.02em}

/* ---------- cards ---------- */
.card{position:relative;background:var(--white);border:1px solid var(--hair);border-radius:6px;
  padding:18px 18px 14px 20px;overflow:hidden}
.card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .15s}
.card:hover::before{background:var(--blue)}
.card h3{margin-top:.7em}
.glyph{width:30px;height:30px;border-radius:5px;background:var(--paper);border:1px solid var(--hair);
  display:flex;align-items:center;justify-content:center;margin-bottom:2px}
.glyph svg{display:block}
.badge{width:26px;height:26px;flex:0 0 auto}

/* list card variant */
.card.plain{padding:14px 16px}
.card.plain h3{font-size:.98rem;margin:0 0 .35em}
.card.plain p{margin:0;font-size:.93rem;color:#33424f}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:var(--blue);color:#fff;padding:10px 18px;border-radius:4px;
  border:0;border-bottom:1px solid #15619f;font-family:var(--sans);font-size:.95rem;font-weight:600;
  cursor:pointer;line-height:1;text-decoration:none}
.btn:hover{text-decoration:none;background:#1a72c2}
.btn:active{transform:translateY(1px);border-bottom-color:transparent}
.btn.ghost{background:var(--white);color:var(--ink);border:1px solid var(--hair);border-bottom:1px solid #cfd9e2}
.btn.ghost:hover{background:var(--paper)}
.btnrow{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
.btnrow.center{justify-content:center}

/* ---------- dark section ---------- */
.dark{background:var(--navy);color:#dfe8ef}
.dark h1,.dark h2,.dark h3{color:#fff}
.dark a{color:#7dc0f0}
.dark .chipline .chip{background:#0a141d;border-color:#243646;color:#9fb4c6}
.dark-in{max-width:1080px;margin:0 auto;padding:34px 20px}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.94rem}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--hair);vertical-align:top}
th{font-family:var(--mono);font-size:.66rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);background:var(--paper)}
tr:last-child td{border-bottom:0}

/* ---------- forms ---------- */
form{background:var(--white);border:1px solid var(--hair);border-radius:6px;padding:20px;margin:20px 0}
label{display:block;font-size:.82rem;font-weight:600;margin:12px 0 4px}
input,select,textarea{width:100%;padding:9px 10px;border:1px solid var(--hair);border-radius:4px;
  font-family:var(--sans);font-size:.95rem;background:var(--paper);color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #bcdcf7;border-color:var(--blue);background:#fff}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media(max-width:620px){.frow{grid-template-columns:1fr}}
.req{color:var(--blue)}
.note{font-size:.8rem;color:var(--muted);margin-top:12px}

/* ---------- notice bar ---------- */
.notice{display:none;background:#0a141d;color:#cfe0ec;font-size:.82rem;text-align:center;padding:7px 40px 7px 14px;position:relative}
.notice.on{display:block}
.notice a{color:#7dc0f0}
.notice button{position:absolute;right:8px;top:4px;background:none;border:0;color:#8fa6b6;font-size:1rem;cursor:pointer}

/* ---------- footer ---------- */
.ftr{background:var(--navy);color:#a9bccb;font-size:.86rem;padding:34px 0 24px}
.ftr-in{max-width:1080px;margin:0 auto;padding:0 20px;display:grid;gap:24px;grid-template-columns:1.4fr 1fr 1fr 1fr}
@media(max-width:820px){.ftr-in{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.ftr-in{grid-template-columns:1fr}}
.ftr h4{color:#fff;font-family:var(--mono);font-size:.64rem;letter-spacing:.11em;text-transform:uppercase;margin:0 0 10px}
.ftr a{color:#a9bccb;display:block;margin:4px 0}
.ftr a:hover{color:#fff}
.ftr .brand{color:#fff;font-weight:700;margin:0 0 8px}
.ftr .base{max-width:1080px;margin:24px auto 0;padding:14px 20px 0;border-top:1px solid #223140;
  font-size:.76rem;color:#7d94a6;display:flex;flex-wrap:wrap;gap:6px 18px}
.mono{font-family:var(--mono);font-size:.8rem}

/* misc */
.kv{font-family:var(--mono);font-size:.82rem;color:var(--muted);margin:0 0 6px}
.lead{font-size:1.06rem;color:#2c3a46}
.quiet{color:var(--muted)}
.center{text-align:center}
.mt0{margin-top:0}
ul.ticks{list-style:none;padding-left:0}
ul.ticks li{padding-left:24px;position:relative}
ul.ticks li::before{content:"";position:absolute;left:2px;top:.5em;width:9px;height:9px;border-radius:2px;
  background:var(--blue);opacity:.75}