/* ==========================================================================
   Shielded VPN — shared styles
   Palette sampled from the app icon: #3785F6 -> #0B2751 -> #04152F
   Deliberately unlike a light marketing page: dark surfaces, hairline rules,
   square corners, monospaced labelling.
   ========================================================================== */

:root{
  --void:#04101F;
  --panel:#08192E;
  --panel-2:#0C2544;
  --panel-3:#102E52;

  --blue:#3785F6;
  --blue-deep:#2B69C3;
  --navy:#0B2751;
  --mint:#35D9A0;

  --text:#E9EFF8;
  --muted:#8AA0BE;
  --dim:#5C7290;

  --edge:rgba(255,255,255,.11);
  --edge-2:rgba(255,255,255,.055);

  --sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;

  --gut:clamp(18px,4.5vw,54px);
  --maxw:1160px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--void);color:var(--text);
  font-family:var(--sans);font-size:16.5px;line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:var(--blue)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}

h1,h2,h3,h4{font-family:var(--sans);font-weight:600;margin:0;letter-spacing:-.022em;line-height:1.1}
h1{font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:600;line-height:1.06;letter-spacing:-.032em}
h2{font-size:clamp(1.55rem,3vw,2.3rem)}
h3{font-size:1.08rem;letter-spacing:-.012em;line-height:1.35}
p{margin:0 0 1em}
.lede{font-size:clamp(1rem,1.4vw,1.16rem);color:var(--muted);max-width:44ch;line-height:1.6}

.tag{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--dim);display:block;
}
.tag b{color:var(--blue);font-weight:400}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(4,16,31,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--edge-2);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:62px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--text)}
.logo img{width:29px;height:29px;border-radius:7px}
.logo b{font-weight:600;font-size:1.06rem;letter-spacing:-.02em}
.logo b i{font-style:normal;color:var(--muted);font-weight:400}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;
  text-decoration:none;color:var(--muted);
}
.nav-links a:hover{color:var(--text)}
@media(max-width:820px){.nav-links a:not(.btn){display:none}}

.btn{
  display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  font-family:var(--sans);font-weight:600;font-size:.95rem;letter-spacing:-.008em;
  padding:12px 20px;border-radius:3px;border:0;cursor:pointer;
  background:var(--blue);color:#04101F;
  transition:background .15s ease,transform .15s ease;
}
.btn:hover{background:#5A9DFF;transform:translateY(-1px)}
.btn.line{background:transparent;color:var(--text);box-shadow:inset 0 0 0 1px var(--edge)}
.btn.line:hover{background:rgba(55,133,246,.1);box-shadow:inset 0 0 0 1px var(--blue)}
.btn.sm{padding:9px 15px;font-size:.86rem}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--edge-2)}
.hero::before{
  content:"";position:absolute;top:-40%;left:50%;transform:translateX(-50%);
  width:900px;height:900px;pointer-events:none;
  background:radial-gradient(circle,rgba(55,133,246,.20),transparent 62%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--edge-2) 1px,transparent 1px),
                   linear-gradient(90deg,var(--edge-2) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 72%);
}
.hero .wrap{position:relative;z-index:2;padding:clamp(46px,7vw,92px) var(--gut) clamp(40px,6vw,76px)}
.hero img.mark{width:66px;height:66px;border-radius:15px;margin-bottom:24px}
.hero h1{margin:14px 0 0;max-width:19ch}
.hero .lede{margin-top:18px}
.hero-cta{display:flex;flex-wrap:wrap;gap:11px;margin-top:28px}

/* ---------- status panel (signature) ---------- */
.status{
  margin-top:clamp(34px,5vw,58px);
  border:1px solid var(--edge);background:var(--panel);
  border-radius:4px;overflow:hidden;
}
.status-bar{
  display:flex;flex-wrap:wrap;gap:8px 26px;align-items:center;
  padding:13px 18px;border-bottom:1px solid var(--edge-2);
  background:var(--panel-2);
  font-family:var(--mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);
}
.dot{
  width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block;
  margin-right:8px;vertical-align:middle;box-shadow:0 0 0 3px rgba(53,217,160,.18);
}
.status-bar .sep{color:var(--dim)}

/* tunnel diagram */
.tunnel{padding:clamp(24px,4vw,42px) clamp(16px,3vw,32px)}
.tunnel svg{width:100%;height:auto;max-width:920px;margin:0 auto}
.tn-line{stroke:var(--edge);stroke-width:1}
.tn-pipe{stroke:var(--blue);stroke-width:2;stroke-dasharray:7 6;fill:none}
.tn-box{fill:var(--panel-2);stroke:var(--edge);stroke-width:1}
.tn-lbl{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;fill:var(--muted)}
.tn-cap{font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;fill:var(--dim)}
.tn-ico{stroke:var(--blue);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
@media(prefers-reduced-motion:no-preference){
  .tn-pipe{animation:flow 1.5s linear infinite}
  @keyframes flow{to{stroke-dashoffset:-26}}
}
.tunnel figcaption{
  text-align:center;margin-top:22px;font-size:.9rem;color:var(--muted);
  max-width:52ch;margin-left:auto;margin-right:auto;
}

/* ---------- sections ---------- */
.section{padding:clamp(52px,7.5vw,104px) 0;border-bottom:1px solid var(--edge-2)}
.section.alt{background:var(--panel)}
.sec-head{max-width:620px;margin-bottom:clamp(28px,4vw,52px)}
.sec-head h2{margin:12px 0 14px}
.sec-head p{color:var(--muted);margin:0}

/* two-column split */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4.5vw,64px)}
@media(max-width:860px){.split{grid-template-columns:1fr}}

/* ledger list — the "never / do" pair */
.ledger{border-top:1px solid var(--edge);list-style:none;margin:0;padding:0}
.ledger li{
  display:flex;gap:14px;align-items:flex-start;
  padding:15px 0;border-bottom:1px solid var(--edge-2);
}
.ledger li svg{width:17px;height:17px;flex:none;margin-top:4px;fill:none;stroke-width:2.1;stroke-linecap:round;stroke-linejoin:round}
.ledger.no li svg{stroke:var(--mint)}
.ledger.yes li svg{stroke:var(--blue)}
.ledger strong{display:block;font-weight:600;font-size:.98rem}
.ledger span{display:block;color:var(--muted);font-size:.89rem;margin-top:3px;line-height:1.5}

.panel{
  border:1px solid var(--edge);background:var(--panel-2);border-radius:4px;
  padding:clamp(20px,3vw,30px);
}
.panel.flat{background:transparent}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--edge);max-width:800px}
.faq details{border-bottom:1px solid var(--edge-2)}
.faq summary{
  cursor:pointer;list-style:none;padding:19px 42px 19px 0;position:relative;
  font-weight:600;font-size:1.01rem;letter-spacing:-.012em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:10px;top:50%;width:11px;height:11px;
  border-right:1.5px solid var(--blue);border-bottom:1.5px solid var(--blue);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.faq p{color:var(--muted);margin:0 0 20px;font-size:.95rem;max-width:66ch}

/* ---------- cta ---------- */
.cta{text-align:center;padding:clamp(50px,7vw,96px) 0}
.cta img{width:70px;height:70px;border-radius:16px;margin:0 auto 20px}
.cta p{color:var(--muted);max-width:46ch;margin:14px auto 24px}

/* ---------- footer ---------- */
.foot{background:#02090F;padding:clamp(40px,5.5vw,68px) 0 30px;font-size:.9rem;color:var(--muted)}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--text)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:30px}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:500px){.foot-grid{grid-template-columns:1fr}}
.foot h4{
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--dim);font-weight:400;margin:0 0 13px;
}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot .about{margin-top:13px;font-size:.86rem;color:var(--dim);max-width:32ch}
.colophon{
  margin-top:clamp(30px,4vw,48px);padding-top:20px;border-top:1px solid var(--edge-2);
  display:flex;flex-wrap:wrap;gap:9px 24px;justify-content:space-between;
  font-family:var(--mono);font-size:10px;letter-spacing:.09em;color:var(--dim);
}
.fill{background:rgba(55,133,246,.14);color:#9CC4FF;padding:1px 6px;border-radius:3px;font-family:var(--mono);font-size:.84em}

/* ---------- legal / support pages ---------- */
.page-head{border-bottom:1px solid var(--edge-2);padding:clamp(38px,5.5vw,68px) 0 clamp(26px,3.5vw,42px);background:var(--panel)}
.page-head h1{font-size:clamp(1.85rem,4vw,2.8rem)}
.page-head .meta{font-family:var(--mono);font-size:11px;letter-spacing:.09em;color:var(--dim);margin:14px 0 0}
.legal{display:grid;grid-template-columns:225px minmax(0,1fr);gap:clamp(26px,4.5vw,58px);padding:clamp(36px,5vw,66px) 0 clamp(56px,7.5vw,100px)}
@media(max-width:900px){.legal{grid-template-columns:1fr}}
.toc{position:sticky;top:86px;align-self:start;font-size:.86rem}
@media(max-width:900px){.toc{position:static;border-bottom:1px solid var(--edge-2);padding-bottom:22px}}
.toc h4{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);font-weight:400;margin:0 0 13px}
.toc ol{list-style:none;margin:0;padding:0;display:grid;gap:7px}
.toc a{color:var(--muted);text-decoration:none;display:block}
.toc a:hover{color:var(--blue)}
.prose{max-width:70ch}
.prose h2{font-size:clamp(1.2rem,2.2vw,1.5rem);margin:2.3em 0 .7em;scroll-margin-top:86px}
.prose h2:first-child{margin-top:0}
.prose h3{margin:1.7em 0 .5em;font-size:1rem;color:var(--text)}
.prose p,.prose li{color:#C4D2E4;font-size:.98rem;line-height:1.7}
.prose ul,.prose ol{padding-left:1.15em;margin:0 0 1.15em}
.prose li{margin-bottom:.45em}
.prose strong{color:var(--text)}
.callout{background:var(--panel-2);border-left:2px solid var(--blue);padding:17px 21px;margin:1.6em 0;border-radius:0 3px 3px 0}
.callout p{margin:0;font-size:.93rem}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.91rem}
.prose th,.prose td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--edge-2);vertical-align:top;color:#C4D2E4}
.prose th{font-weight:600;font-size:.84rem;color:var(--text);border-bottom-color:var(--edge)}

.contact{
  border:1px solid var(--edge);background:var(--panel-2);border-radius:4px;
  padding:clamp(22px,3.4vw,38px);
}
.contact a.mail{
  display:inline-block;margin-top:9px;
  font-weight:600;font-size:clamp(1.05rem,2.4vw,1.55rem);letter-spacing:-.025em;
  color:var(--blue);text-decoration:none;word-break:break-all;
}
.contact a.mail:hover{text-decoration:underline}
.contact p{color:var(--muted);margin:12px 0 0;max-width:54ch;font-size:.94rem}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}