:root{
  --paper:#F2F4F3;
  --ink:#161E28;
  --ink-soft:#4A5568;
  --panel:#141B24;
  --panel-2:#1C2531;
  --panel-edge:#2B3644;
  --lamp-green:#35D584;
  --lamp-amber:#F0A83C;
  --lamp-off:#3C4756;
  --action:#0E8A5C;
  --action-hover:#0B6E49;
  --alert:#E05B51;
  --line:#D7DDE1;
  --card:#FFFFFF;
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'IBM Plex Sans',system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:'Archivo',sans-serif;line-height:1.08;letter-spacing:-0.01em}
.mono{font-family:'IBM Plex Mono',monospace}
a{color:inherit}
:focus-visible{outline:3px solid var(--lamp-green);outline-offset:2px;border-radius:4px}

.eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--action);font-weight:600;margin-bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lamp-green)}
.dark .eyebrow{color:var(--lamp-green)}

.btn{
  display:inline-block;background:var(--action);color:#fff;
  font-family:'Archivo',sans-serif;font-weight:700;font-size:.98rem;
  padding:14px 30px;border-radius:9px;text-decoration:none;border:none;cursor:pointer;
  transition:background .15s, transform .15s;
}
.btn:hover{background:var(--action-hover);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn.ghost.inverse{color:#fff;border-color:rgba(255,255,255,.5)}
.btn.ghost.inverse:hover{background:#fff;color:var(--ink)}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(20,27,36,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
  color:#E7ECF1;
}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{font-family:'Archivo',sans-serif;font-weight:800;font-stretch:115%;font-size:1.2rem;text-decoration:none;display:flex;align-items:center;gap:10px}
.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--lamp-green);box-shadow:0 0 10px rgba(53,213,132,.8)}
.nav-links{display:flex;gap:28px;list-style:none;align-items:center}
.nav-links a{text-decoration:none;font-size:.92rem;font-weight:500;color:#AEBAC7}
.nav-links a:hover{color:#fff}
.nav .btn{padding:10px 22px}
.menu-toggle{display:none;background:none;border:none;font-size:1.6rem;cursor:pointer;color:#fff}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(1100px 500px at 75% -10%, rgba(14,138,92,.28), transparent 60%),
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.07) 1.2px, transparent 0) 0 0/26px 26px,
    var(--panel);
  color:#E7ECF1;
  padding:88px 0 0;
  position:relative;
  overflow:hidden;
}
.hero::after{ /* fade the dot grid toward the bottom */
  content:"";position:absolute;inset:auto 0 0 0;height:180px;
  background:linear-gradient(transparent, var(--panel));pointer-events:none;
}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center;padding-bottom:70px}
.hero h1{
  font-size:clamp(2.4rem,5vw,4rem);font-weight:880;font-stretch:112%;
  margin-bottom:22px;color:#fff;
}
.hero h1 em{font-style:normal;color:var(--lamp-green)}
.hero p.lede{font-size:1.15rem;color:#AEBAC7;max-width:33em;margin-bottom:34px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:24px;font-size:.9rem;color:#8A97A8}
.hero-note strong{color:var(--lamp-green)}

/* signature: BLF status panel */
.pbx{
  background:linear-gradient(180deg, var(--panel-2), #171f29);
  border:1px solid var(--panel-edge);border-radius:16px;
  padding:24px 24px 20px;color:#C7D0DB;
  box-shadow:0 40px 80px -30px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,255,255,.06);
}
.pbx-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--panel-edge);padding-bottom:12px;margin-bottom:6px}
.pbx-head .sys{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:#8A97A8}
.pbx-head .live{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--lamp-green)}
.pbx-line{display:flex;align-items:center;gap:14px;padding:11px 4px;border-bottom:1px dashed rgba(255,255,255,.07);font-family:'IBM Plex Mono',monospace;font-size:.86rem}
.pbx-line:last-of-type{border-bottom:none}
.lamp{width:11px;height:11px;border-radius:50%;background:var(--lamp-off);flex-shrink:0;transition:background .4s, box-shadow .4s}
.lamp.on{background:var(--lamp-green);box-shadow:0 0 12px rgba(53,213,132,.9)}
.lamp.ring{background:var(--lamp-amber);box-shadow:0 0 12px rgba(240,168,60,.9);animation:blink 1s infinite}
@keyframes blink{50%{opacity:.35}}
.pbx-line .ext{color:#7E8CA0;width:4.2em}
.pbx-line .who{flex:1;color:#E5EAF0}
.pbx-line .st{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:#7E8CA0}
.pbx-meter{margin-top:14px;padding-top:14px;border-top:1px solid var(--panel-edge)}
.pbx-meter .label{display:flex;justify-content:space-between;font-family:'IBM Plex Mono',monospace;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:#8A97A8;margin-bottom:8px}
.pbx-meter .label b{color:#fff;font-weight:600}
.meter{height:9px;background:#0D131B;border-radius:99px;overflow:hidden}
.meter>span{display:block;height:100%;width:30%;background:linear-gradient(90deg,var(--action),var(--lamp-green));border-radius:99px;transition:width .6s ease;box-shadow:0 0 12px rgba(53,213,132,.5)}

/* stats strip inside hero */
.stats{
  border-top:1px solid rgba(255,255,255,.09);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat{padding:26px 18px;text-align:center;border-left:1px solid rgba(255,255,255,.09)}
.stat:first-child{border-left:none}
.stat .n{font-family:'IBM Plex Mono',monospace;font-size:1.6rem;font-weight:600;color:var(--lamp-green)}
.stat .l{font-size:.82rem;color:#8A97A8;text-transform:uppercase;letter-spacing:.08em;font-family:'IBM Plex Mono',monospace}

/* ---------- offer strip ---------- */
.offer{background:var(--lamp-green);color:var(--ink);padding:16px 0;font-weight:500}
.offer .wrap{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;text-align:center}
.offer .tag{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;background:var(--ink);color:var(--lamp-green);padding:4px 12px;border-radius:99px;font-weight:600}
.offer p{font-size:1rem}

/* ---------- sections ---------- */
section{padding:92px 0}
.sec-head{max-width:660px;margin-bottom:52px}
.sec-head h2{font-size:clamp(1.8rem,3.2vw,2.6rem);font-weight:820;font-stretch:108%;margin:10px 0 14px}
.sec-head p{color:var(--ink-soft);font-size:1.06rem}
.dark{background:var(--panel);color:#E7ECF1}
.dark .sec-head h2{color:#fff}
.dark .sec-head p{color:#AEBAC7}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(22px);transition:opacity .6s ease, transform .6s ease}
.rv.in{opacity:1;transform:none}

/* comparison */
.compare{background:#fff;border-bottom:1px solid var(--line)}
.vs-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:28px}
.vs-card{border:1px solid var(--line);border-radius:var(--radius);padding:30px;background:#fff}
.vs-card h3{font-size:1.1rem;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.vs-card .chip{width:11px;height:11px;border-radius:50%}
.vs-card.cloud{background:#FBF3F2;border-color:#EFD4D1}
.vs-card.cloud .chip{background:var(--alert)}
.vs-card.sip{border:2px solid var(--action);background:#F1FAF5;box-shadow:0 18px 40px -22px rgba(14,138,92,.45)}
.vs-card.sip .chip{background:var(--lamp-green)}
.vs-card .sub{font-size:.87rem;color:var(--ink-soft);margin-bottom:18px}
.vs-card .rows div{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--line);font-size:1rem}
.vs-card .rows div:last-child{border-bottom:none}
.vs-card .rows .num{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:1.05rem}
.cloud .rows .num{color:var(--alert)}
.sip .rows .num{color:var(--action)}
.savings{
  text-align:center;border-radius:var(--radius);padding:38px 24px;color:#fff;
  background:
    radial-gradient(700px 300px at 50% -40%, rgba(53,213,132,.25), transparent 70%),
    var(--panel);
}
.savings .big{font-family:'IBM Plex Mono',monospace;font-size:clamp(2.4rem,5.5vw,3.6rem);font-weight:600;color:var(--lamp-green)}
.savings p{color:#AEBAC7;font-size:.98rem;max-width:44em;margin:8px auto 0}

/* what's in the box (dark) */
.box-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.box-list{list-style:none}
.box-list li{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.box-list li:last-child{border-bottom:none}
.box-list .ic{
  width:40px;height:40px;border-radius:10px;background:rgba(53,213,132,.12);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  border:1px solid rgba(53,213,132,.25);
}
.box-list .ic svg{width:20px;height:20px;stroke:var(--lamp-green)}
.box-list h3{font-size:1rem;color:#fff;margin-bottom:2px}
.box-list p{font-size:.9rem;color:#AEBAC7}
.rig{filter:drop-shadow(0 30px 50px rgba(0,0,0,.6))}

/* plans */
.plans-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;display:flex;flex-direction:column;transition:transform .2s, box-shadow .2s}
.plan:hover{transform:translateY(-4px);box-shadow:0 22px 44px -24px rgba(22,30,40,.35)}
.plan.featured{border:2px solid var(--action);position:relative;background:linear-gradient(180deg,#F1FAF5,#fff 45%)}
.plan.featured::before{
  content:"Most popular";position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--action);color:#fff;font-family:'IBM Plex Mono',monospace;
  font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;padding:4px 14px;border-radius:99px;white-space:nowrap;
}
.plan h3{font-size:1.1rem;font-weight:700;margin-bottom:4px}
.plan .for{font-size:.83rem;color:var(--ink-soft);margin-bottom:18px;min-height:2.4em}
.plan .price{font-family:'IBM Plex Mono',monospace;font-size:2.2rem;font-weight:600;margin-bottom:2px}
.plan .price small{font-size:.85rem;color:var(--ink-soft);font-weight:400}
.plan .per{font-size:.8rem;color:var(--ink-soft);margin-bottom:20px;font-family:'IBM Plex Mono',monospace}
.plan ul{list-style:none;margin-bottom:26px;flex:1}
.plan li{padding:8px 0;font-size:.9rem;display:flex;gap:10px;align-items:baseline;border-bottom:1px dashed var(--line)}
.plan li:last-child{border-bottom:none}
.plan li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lamp-green);flex-shrink:0;position:relative;top:-1px}
.plan .btn{width:100%;text-align:center}
.plans-note{margin-top:24px;font-size:.87rem;color:var(--ink-soft);text-align:center}

/* features */
.features{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feat{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--paper)}
.feat .ic{
  width:44px;height:44px;border-radius:11px;background:var(--panel);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.feat .ic svg{width:22px;height:22px;stroke:var(--lamp-green)}
.feat h3{font-size:1rem;font-weight:700;margin-bottom:12px}
.feat ul{list-style:none}
.feat li{font-size:.89rem;color:var(--ink-soft);padding:5px 0}

/* steps */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{border:1px solid var(--line);border-radius:var(--radius);padding:30px;background:var(--card);position:relative}
.step .n{
  font-family:'IBM Plex Mono',monospace;font-size:.95rem;color:#fff;font-weight:600;
  width:38px;height:38px;border-radius:50%;background:var(--action);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.step h3{font-size:1.12rem;font-weight:700;margin-bottom:10px}
.step p{font-size:.93rem;color:var(--ink-soft)}

/* FAQ */
.faq{background:#fff;border-top:1px solid var(--line)}
.faq-list{max-width:780px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;
  padding:20px 4px;font-family:'Archivo',sans-serif;font-weight:700;font-size:1.02rem;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-family:'IBM Plex Mono',monospace;font-size:1.3rem;color:var(--action);flex-shrink:0}
.faq-item[open] summary::after{content:"–"}
.faq-item .a{padding:0 4px 20px;color:var(--ink-soft);font-size:.95rem;max-width:60em}

/* brands */
.brands{padding:60px 0;border-top:1px solid var(--line)}
.brands p{text-align:center;font-family:'IBM Plex Mono',monospace;font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:24px}
.brand-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.brand-row span{
  font-family:'Archivo',sans-serif;font-weight:700;font-size:.95rem;color:var(--ink-soft);
  border:1px solid var(--line);border-radius:99px;padding:9px 24px;background:#fff;
}

/* CTA band */
.cta-band{
  background:
    radial-gradient(900px 400px at 50% 120%, rgba(53,213,132,.22), transparent 65%),
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1.2px, transparent 0) 0 0/26px 26px,
    var(--panel);
  color:#fff;text-align:center;
}
.cta-band h2{font-size:clamp(1.9rem,3.4vw,2.8rem);font-weight:840;font-stretch:110%;margin-bottom:14px}
.cta-band p{color:#AEBAC7;max-width:38em;margin:0 auto 32px}
.cta-band .phone{font-family:'IBM Plex Mono',monospace;font-size:1.15rem;margin-top:24px;color:var(--lamp-green)}
.cta-band .phone a{text-decoration:none}

/* footer */
footer{padding:60px 0 36px;font-size:.9rem;color:var(--ink-soft);background:var(--paper)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:36px}
.foot-grid h4{font-family:'Archivo',sans-serif;font-size:.95rem;color:var(--ink);margin-bottom:12px}
.foot-grid ul{list-style:none}
.foot-grid li{padding:4px 0}
.foot-grid a{text-decoration:none}
.foot-grid a:hover{text-decoration:underline}
.foot-bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem}

/* responsive */
@media (max-width:960px){
  .hero-grid,.box-grid{grid-template-columns:1fr;gap:44px}
  .plans-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:none;border-top:1px solid rgba(255,255,255,.09)}
}
@media (max-width:640px){
  .nav-links{
    display:none;position:absolute;top:70px;left:0;right:0;background:var(--panel);
    flex-direction:column;padding:20px 24px;gap:16px;border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
  .vs-grid,.plans-grid,.feat-grid{grid-template-columns:1fr}
  section{padding:64px 0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .lamp,.meter>span,.btn,.plan,.rv{transition:none;animation:none}
  .rv{opacity:1;transform:none}
  .lamp.ring{animation:none}
}

/* ---------- inner pages ---------- */
.page-hero{
  background:
    radial-gradient(900px 380px at 70% -20%, rgba(14,138,92,.25), transparent 60%),
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1.2px, transparent 0) 0 0/26px 26px,
    var(--panel);
  color:#E7ECF1;padding:70px 0 56px;
}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);font-weight:860;font-stretch:110%;color:#fff;margin-top:8px}
.page-hero p{color:#AEBAC7;max-width:40em;margin-top:14px;font-size:1.08rem}

/* rate table */
.rate-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:.95rem}
.rate-table th{background:var(--panel);color:#fff;font-family:'Archivo',sans-serif;text-align:left;padding:14px 18px;font-size:.9rem}
.rate-table td{padding:13px 18px;border-top:1px solid var(--line)}
.rate-table td.num{font-family:'IBM Plex Mono',monospace;font-weight:600;color:var(--action)}
.rate-table tr:nth-child(even){background:var(--paper)}
.table-scroll{overflow-x:auto;border-radius:var(--radius)}

/* hardware cards */
.hw-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.hw{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.hw .ic{width:46px;height:46px;border-radius:11px;background:var(--panel);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.hw .ic svg{width:24px;height:24px;stroke:var(--lamp-green)}
.hw h3{font-size:1.08rem;margin-bottom:8px}
.hw p{font-size:.92rem;color:var(--ink-soft)}
.hw ul{list-style:none;margin-top:14px}
.hw li{padding:6px 0;font-size:.88rem;color:var(--ink-soft);display:flex;gap:10px;align-items:baseline;border-bottom:1px dashed var(--line)}
.hw li:last-child{border-bottom:none}
.hw li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lamp-green);flex-shrink:0}

/* videos */
.vid-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.vid{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.vid .frame{aspect-ratio:16/9;background:var(--panel);display:flex;align-items:center;justify-content:center}
.vid .frame iframe{width:100%;height:100%;border:0}
.vid .frame span{color:#8A97A8;font-family:'IBM Plex Mono',monospace;font-size:.8rem}
.vid .body{padding:18px 20px}
.vid h3{font-size:.98rem;margin-bottom:4px}
.vid p{font-size:.85rem;color:var(--ink-soft)}

/* form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:760px}
.form-grid .full{grid-column:1/-1}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;border:1.5px solid var(--line);border-radius:9px;
  font-family:'IBM Plex Sans',sans-serif;font-size:.95rem;background:#fff;color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--action)}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:.83rem;color:var(--ink-soft);margin-top:14px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.alert{max-width:760px;margin-bottom:26px;padding:16px 20px;border-radius:9px;font-size:.95rem}
.alert.ok{background:#E9F8F0;border:1px solid var(--action);color:#0B5C3E}
.alert.err{background:#FBF0EF;border:1px solid var(--alert);color:#8C2F28}

@media (max-width:900px){.hw-grid,.vid-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.hw-grid,.vid-grid,.form-grid{grid-template-columns:1fr}}