/* SIMSwarm — UK mobile IP network. Marketing site styles. */

:root{
  --bg:#07080b;
  --bg-2:#0b0d12;
  --panel:#0f1218;
  --panel-2:#141821;
  --line:#1d2230;
  --line-2:#2a3142;
  --txt:#e9ecf3;
  --txt-2:#9aa3b8;
  --txt-3:#6b7488;
  --acc:#00e08a;
  --acc-glow:rgba(0,224,138,.14);
  --blue:#4c9dff;
  --amber:#ffb545;
  --red:#ff5f6d;
  --r:14px;
  --r-sm:9px;
  --max:1180px;
  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",Menlo,Consolas,monospace;
  --sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.022em;font-weight:640}
p{margin:0}
code,kbd{font-family:var(--mono)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.center{text-align:center}
.mono{font-family:var(--mono)}
.acc{color:var(--acc)}
.muted{color:var(--txt-2)}
.small{font-size:14px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);
  background:rgba(7,8,11,.78);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:32px;height:64px;max-width:var(--max);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.03em;font-size:17px}
.logo .bars{display:flex;align-items:flex-end;gap:2px;height:16px}
.logo .bars i{width:3px;border-radius:1px;background:var(--acc);display:block}
.logo .bars i:nth-child(1){height:5px;opacity:.45}
.logo .bars i:nth-child(2){height:9px;opacity:.65}
.logo .bars i:nth-child(3){height:13px;opacity:.85}
.logo .bars i:nth-child(4){height:17px}
.nav-links{display:flex;gap:26px;font-size:14.5px;color:var(--txt-2)}
.nav-links a:hover{color:var(--txt)}
.nav-links a.on{color:var(--txt)}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:14px}
.navtog{display:none;background:none;border:0;color:var(--txt);font-size:22px;cursor:pointer;padding:4px 8px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 19px;border-radius:10px;
  font-size:14.5px;font-weight:560;border:1px solid transparent;cursor:pointer;transition:.16s;white-space:nowrap}
.btn-p{background:var(--acc);color:#04160e;box-shadow:0 0 0 1px rgba(0,224,138,.35),0 8px 30px -12px rgba(0,224,138,.7)}
.btn-p:hover{background:#25f0a2;transform:translateY(-1px)}
.btn-s{background:var(--panel-2);color:var(--txt);border-color:var(--line-2)}
.btn-s:hover{border-color:#3b4459;background:#191e29}
.btn-g{background:transparent;color:var(--txt-2)}
.btn-g:hover{color:var(--txt)}
.btn-lg{padding:14px 24px;font-size:15.5px}

/* ---------- hero ---------- */
.hero{position:relative;padding:96px 0 84px;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-40% 0 auto 50%;transform:translateX(-50%);
  width:1100px;height:700px;border-radius:50%;
  background:radial-gradient(ellipse at center,var(--acc-glow),transparent 62%);pointer-events:none}
.grid-bg{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 20%,#000,transparent 75%);
  mask-image:radial-gradient(ellipse 80% 60% at 50% 20%,#000,transparent 75%)}
.hero-in{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:9px;padding:6px 13px 6px 8px;border-radius:100px;
  background:var(--panel-2);border:1px solid var(--line-2);font-size:13px;color:var(--txt-2);margin-bottom:22px}
.pill b{color:var(--acc);font-weight:600}
.dot{width:6px;height:6px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 3px rgba(0,224,138,.18);
  animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
h1.big{font-size:clamp(38px,5.1vw,60px);letter-spacing:-.035em;font-weight:700}
h1.big .grad{background:linear-gradient(96deg,var(--acc),#7df0ff 70%);-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{margin-top:20px;font-size:18.5px;color:var(--txt-2);max-width:540px;line-height:1.55}
.hero-cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero-note{margin-top:18px;font-size:13.5px;color:var(--txt-3);display:flex;gap:18px;flex-wrap:wrap}
.hero-note span{display:flex;align-items:center;gap:6px}
.tick{color:var(--acc)}

/* ---------- terminal ---------- */
.term{background:linear-gradient(180deg,#0d1017,#0a0c11);border:1px solid var(--line-2);border-radius:var(--r);
  overflow:hidden;box-shadow:0 40px 80px -40px #000,0 0 0 1px rgba(255,255,255,.02)}
.term-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line);background:#0c0f15}
.term-bar i{width:10px;height:10px;border-radius:50%;background:#2c3446;display:block}
.term-bar span{margin-left:8px;font-family:var(--mono);font-size:12px;color:var(--txt-3)}
.term-body{padding:16px 18px;font-family:var(--mono);font-size:12.6px;line-height:1.85;overflow-x:auto}
.term-body .c{color:var(--txt-3)}
.term-body .p{color:var(--acc)}
.term-body .s{color:var(--amber)}
.term-body .k{color:var(--blue)}
.term-body .o{color:var(--txt-2)}
.term-body .hl{color:#fff}
.term-body div{white-space:pre}

/* ---------- sections ---------- */
section{position:relative}
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--acc);margin-bottom:14px}
h2.h{font-size:clamp(27px,3.4vw,38px);letter-spacing:-.03em}
.lead{margin-top:16px;font-size:17.5px;color:var(--txt-2);max-width:620px;line-height:1.6}
.center .lead{margin-left:auto;margin-right:auto}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent)}

/* ---------- logos / stats ---------- */
.carriers{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
  padding:26px 0;color:var(--txt-3);font-size:13px}
.carrier{display:flex;align-items:center;gap:8px;padding:8px 16px;border:1px solid var(--line);
  border-radius:100px;background:var(--panel);font-weight:600;letter-spacing:-.01em;color:var(--txt-2);font-size:14px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:var(--bg-2);padding:26px 24px}
.stat b{display:block;font-size:31px;letter-spacing:-.035em;font-weight:680;font-family:var(--mono)}
.stat span{font-size:13.5px;color:var(--txt-2)}

/* ---------- cards ---------- */
.cards{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.card h3{font-size:17.5px;margin-bottom:9px}
.card p{color:var(--txt-2);font-size:14.8px;line-height:1.62}
.card:hover{border-color:var(--line-2)}
.ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(0,224,138,.09);border:1px solid rgba(0,224,138,.2);color:var(--acc);font-size:18px}

/* ---------- compare table ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
table{width:100%;border-collapse:collapse;font-size:14.6px;min-width:640px}
th,td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
thead th{font-size:12.5px;text-transform:uppercase;letter-spacing:.1em;color:var(--txt-3);font-weight:600;
  background:var(--bg-2);white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
td:first-child{color:var(--txt-2)}
th.us,td.us{background:rgba(0,224,138,.045);border-left:1px solid rgba(0,224,138,.16);border-right:1px solid rgba(0,224,138,.16)}
th.us{color:var(--acc)}
.yes{color:var(--acc);font-weight:600}
.no{color:var(--txt-3)}
.mid{color:var(--amber)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{position:relative;padding-top:18px;border-top:1px solid var(--line)}
.step:before{counter-increment:s;content:"0" counter(s);font-family:var(--mono);font-size:12px;color:var(--acc);
  display:block;margin-bottom:12px;letter-spacing:.1em}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--txt-2);font-size:14.6px}

/* ---------- swarm diagram ---------- */
.diagram{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:30px;overflow:hidden}

/* ---------- code tabs ---------- */
.tabs{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:-1px;position:relative;z-index:2}
.tab{padding:9px 16px;font-size:13.5px;color:var(--txt-2);background:transparent;border:1px solid transparent;
  border-radius:9px 9px 0 0;cursor:pointer;font-family:var(--mono)}
.tab.on{color:var(--txt);background:#0d1017;border-color:var(--line-2);border-bottom-color:#0d1017}
.tab:hover:not(.on){color:var(--txt)}
.pane{display:none}
.pane.on{display:block}
.pane pre{margin-top:0;border-radius:0 var(--r-sm) var(--r-sm) var(--r-sm);padding:20px 22px}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;align-items:stretch}
.plan{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column}
.plan.hot{border-color:rgba(0,224,138,.4);background:linear-gradient(180deg,rgba(0,224,138,.05),var(--panel) 42%);
  box-shadow:0 30px 60px -40px rgba(0,224,138,.6)}
.plan .tag{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--txt-3);margin-bottom:14px}
.plan.hot .tag{color:var(--acc)}
.price{display:flex;align-items:baseline;gap:4px;margin-bottom:4px}
.price b{font-size:38px;letter-spacing:-.04em;font-weight:680}
.price span{color:var(--txt-2);font-size:14px}
.plan .meta{font-size:13.5px;color:var(--txt-3);min-height:38px;margin-bottom:18px}
.plan ul{list-style:none;padding:0;margin:0 0 22px;display:grid;gap:9px;font-size:14.2px;color:var(--txt-2)}
.plan li{display:flex;gap:9px;align-items:flex-start}
.plan li:before{content:"";flex:0 0 auto;width:15px;height:15px;margin-top:4px;border-radius:50%;
  background-color:rgba(0,224,138,.12);
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2300e08a' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3.5 8.5l3 3 6-7'/%3E%3C/svg%3E");
  background-size:11px;background-repeat:no-repeat;background-position:center}
.plan .btn{width:100%;justify-content:center;margin-top:auto}

/* calculator */
.calc{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:30px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center}
.calc label{font-size:13px;color:var(--txt-3);font-family:var(--mono);letter-spacing:.09em;text-transform:uppercase}
.calc-val{font-size:34px;font-weight:680;letter-spacing:-.035em;margin:6px 0 18px;font-family:var(--mono)}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:5px;border-radius:4px;
  background:var(--line-2);outline:none;margin:8px 0 6px}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;
  background:var(--acc);cursor:pointer;border:4px solid #0b1a14;box-shadow:0 0 0 1px var(--acc),0 4px 14px rgba(0,224,138,.5)}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--acc);cursor:pointer;border:4px solid #0b1a14}
.ticks{display:flex;justify-content:space-between;font-size:11.5px;color:var(--txt-3);font-family:var(--mono)}
.calc-out{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-sm);padding:22px}
.calc-row{display:flex;justify-content:space-between;align-items:baseline;padding:9px 0;font-size:14.5px;color:var(--txt-2)}
.calc-row b{color:var(--txt);font-family:var(--mono);font-size:16px}
.calc-row.total{border-top:1px solid var(--line);margin-top:8px;padding-top:16px}
.calc-row.total b{font-size:27px;color:var(--acc);letter-spacing:-.03em}
.savings{margin-top:14px;font-size:13px;color:var(--txt-3);line-height:1.5}
.savings b{color:var(--txt-2)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{padding:20px 0;cursor:pointer;font-size:16.5px;font-weight:560;list-style:none;
  display:flex;justify-content:space-between;gap:20px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--acc);font-size:20px;font-weight:400;flex:0 0 auto;transition:.2s}
.faq details[open] summary:after{transform:rotate(45deg)}
.faq p{padding:0 0 22px;color:var(--txt-2);max-width:780px;font-size:15.2px}

/* ---------- cta ---------- */
.cta{background:linear-gradient(140deg,rgba(0,224,138,.07),var(--panel) 55%);
  border:1px solid rgba(0,224,138,.22);border-radius:20px;padding:56px 44px;text-align:center;position:relative;overflow:hidden}
.cta:after{content:"";position:absolute;inset:auto -10% -70% -10%;height:280px;border-radius:50%;
  background:radial-gradient(ellipse,var(--acc-glow),transparent 65%)}
.cta > *{position:relative}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:52px 0 34px;margin-top:20px;background:var(--bg-2)}
.foot{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px}
.foot h4{font-size:12.5px;text-transform:uppercase;letter-spacing:.12em;color:var(--txt-3);margin-bottom:14px;font-weight:600}
.foot a{display:block;color:var(--txt-2);font-size:14.3px;padding:4px 0}
.foot a:hover{color:var(--acc)}
.foot-btm{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:44px;padding-top:24px;
  border-top:1px solid var(--line);color:var(--txt-3);font-size:13.2px}

/* ---------- docs ---------- */
.doc{display:grid;grid-template-columns:222px 1fr;gap:52px;padding:48px 0 80px;align-items:start}
.toc{position:sticky;top:88px;font-size:14.2px}
.toc h4{font-size:11.5px;text-transform:uppercase;letter-spacing:.13em;color:var(--txt-3);margin:22px 0 10px;font-weight:600}
.toc h4:first-child{margin-top:0}
.toc a{display:block;padding:5px 0 5px 12px;color:var(--txt-2);border-left:1px solid var(--line)}
.toc a:hover{color:var(--txt);border-left-color:var(--acc)}
.doc-body h2{font-size:26px;margin:52px 0 14px;letter-spacing:-.03em;scroll-margin-top:88px}
.doc-body h2:first-child{margin-top:0}
.doc-body h3{font-size:17.5px;margin:32px 0 10px}
.doc-body p{color:var(--txt-2);margin:12px 0;font-size:15.4px;max-width:760px}
.doc-body ul{color:var(--txt-2);font-size:15.2px;padding-left:20px;max-width:760px}
.doc-body li{margin:7px 0}
.doc-body code:not(pre code){background:var(--panel-2);border:1px solid var(--line);border-radius:5px;
  padding:2px 6px;font-size:13.2px;color:var(--acc)}
pre{background:#0d1017;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:16px 18px;overflow-x:auto;
  font-size:13px;line-height:1.75;margin:16px 0;color:var(--txt-2)}
pre b{color:var(--acc);font-weight:400}
pre i{color:var(--txt-3);font-style:normal}
pre u{color:var(--amber);text-decoration:none}
pre em{color:var(--blue);font-style:normal}
.note{border-left:2px solid var(--acc);background:rgba(0,224,138,.045);padding:14px 18px;border-radius:0 8px 8px 0;margin:20px 0}
.note p{margin:0;color:var(--txt-2);font-size:14.6px}

.badge{display:inline-block;font-family:var(--mono);font-size:11px;padding:3px 8px;border-radius:5px;
  background:var(--panel-2);border:1px solid var(--line-2);color:var(--txt-2);letter-spacing:.04em}

/* ---------- coverage ---------- */
.cov{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:center}
.cities{display:flex;flex-wrap:wrap;gap:8px}
.city{padding:7px 13px;border:1px solid var(--line);border-radius:100px;background:var(--panel);
  font-size:13.4px;color:var(--txt-2);display:flex;align-items:center;gap:7px}
.city i{width:5px;height:5px;border-radius:50%;background:var(--acc);display:block}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .hero-in,.calc,.cov{grid-template-columns:1fr}
  .g3,.g4,.plans,.steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .doc{grid-template-columns:1fr;gap:24px}
  .toc{position:static;display:none}
  .foot{grid-template-columns:1fr 1fr}
  .hero{padding:64px 0 56px}
}
@media(max-width:640px){
  .nav-links{display:none}
  .navtog{display:block}
  .nav-links.open{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--bg-2);border-bottom:1px solid var(--line);padding:8px 24px 16px}
  .nav-links.open a{padding:11px 0;border-bottom:1px solid var(--line)}
  .g3,.g4,.g2,.plans,.steps,.stats{grid-template-columns:1fr}
  .sec{padding:60px 0}
  .cta{padding:40px 22px}
  .calc,.card,.diagram{padding:22px}
  .foot{grid-template-columns:1fr}
  .nav-cta{gap:6px}
  .nav-cta .btn-g{display:none}
  .nav-cta .btn-p{padding:9px 13px;font-size:13.3px}
  h1.big{font-size:33px}
  .sub{font-size:17px}
  .hero-cta .btn{flex:1 1 auto;justify-content:center}
  .term-body{font-size:11.4px}
}