/* ============================================================
   PassNumber — shared design system
   ============================================================ */
:root{
  --bg:#0d1117; --bg2:#0f151d; --panel:#161c25; --panel2:#1b222c;
  --line:#232c38; --line2:#2d3845;
  --ink:#e9eff7; --muted:#8b9bb0; --faint:#5d6b7d;
  --accent:#4cc2ff; --accent-ink:#04121d;
  --amber:#e6b454; --ok:#39d29a; --err:#ff7a59;
  --radius:14px; --radius-sm:10px;
  --maxw:1140px;
  --display:"Bricolage Grotesque",serif;
  --body:"Hanken Grotesk",sans-serif;
  --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--body);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 500px at 78% -8%, rgba(76,194,255,.10), transparent 60%),
    radial-gradient(700px 500px at 5% 0%, rgba(76,194,255,.045), transparent 55%);
  background-attachment:fixed;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--display);font-weight:700;letter-spacing:-.02em;line-height:1.08;margin:0}
h1{font-size:clamp(2.2rem,4.8vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
p{margin:0}
a{color:var(--accent);text-decoration:none}
.mono{font-family:var(--mono)}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}
.muted{color:var(--muted)}
hr.div{border:0;border-top:1px solid var(--line);margin:0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--body);font-weight:600;
  font-size:.98rem;padding:13px 22px;border-radius:11px;cursor:pointer;border:1px solid transparent;transition:.16s}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.ghost{background:transparent;border-color:var(--line2);color:var(--ink)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn svg{width:17px;height:17px}

/* nav */
header.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);
  background:rgba(13,17,23,.72);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:1.18rem;letter-spacing:-.02em;color:var(--ink)}
.logo .mark{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--accent),#2b8fd6);
  display:grid;place-items:center;color:var(--accent-ink);font-family:var(--mono);font-weight:700;font-size:.9rem}
.logo .dot{color:var(--accent)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--muted);font-size:.95rem;font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-cta{display:flex;gap:12px;align-items:center}
.navtoggle{display:none;background:none;border:0;color:var(--ink);cursor:pointer}
@media(max-width:860px){
  .nav-links{position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 24px;width:100%;border-bottom:1px solid var(--line)}
  .nav-cta .btn.ghost{display:none}
  .navtoggle{display:block}
}

/* generic sections */
section{padding:66px 0}
.page-head{padding:64px 0 10px}
.sec-head{max-width:640px;margin-bottom:42px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head p{color:var(--muted);margin-top:14px;font-size:1.08rem}
.lead{font-size:1.15rem;color:var(--muted);max-width:60ch;margin-top:18px}

/* hero */
.hero{padding:78px 0 60px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero h1{font-size:clamp(2.5rem,5.4vw,4rem)}
.hero h1 .hl{color:var(--accent)}
.hero .sub{font-size:1.18rem;color:var(--muted);margin:22px 0 30px;max-width:33ch}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero-meta{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap}
.hero-meta div{font-size:.82rem;color:var(--faint)}
.hero-meta b{display:block;font-family:var(--mono);font-size:1.05rem;color:var(--ink);font-weight:500;margin-bottom:2px}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero .sub{max-width:none}}

/* live grid widget */
.demo-card{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line2);
  border-radius:18px;padding:20px;box-shadow:0 30px 70px -30px rgba(0,0,0,.7);position:relative;overflow:hidden}
.demo-card::before{content:"";position:absolute;inset:0;background:
  linear-gradient(transparent 31px,rgba(255,255,255,.018) 32px),
  linear-gradient(90deg,transparent 31px,rgba(255,255,255,.018) 32px);
  background-size:32px 32px;pointer-events:none}
.dc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;position:relative}
.dc-top .label{font-family:var(--mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--faint)}
.dc-top .pill{font-family:var(--mono);font-size:.7rem;color:var(--accent);border:1px solid var(--line2);
  border-radius:20px;padding:4px 11px;display:inline-flex;align-items:center;gap:7px}
.dc-top .pill .blink{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(76,194,255,.5)}70%{box-shadow:0 0 0 7px rgba(76,194,255,0)}100%{box-shadow:0 0 0 0 rgba(76,194,255,0)}}
.lg-row{display:grid;grid-template-columns:auto repeat(4,1fr);gap:8px;margin-bottom:8px;position:relative}
.lg-rowlabel{font-family:var(--mono);font-size:.62rem;color:var(--faint);align-self:center;text-align:right;padding-right:4px;letter-spacing:.05em}
.cell{background:var(--panel2);border:1px solid var(--line);border-radius:10px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;padding:9px 4px;gap:3px;
  transition:transform .35s ease, border-color .3s, background .3s}
.cell .sym{font-size:1.45rem;line-height:1}
.cell .pos{font-family:var(--mono);font-size:.66rem;color:var(--muted)}
.cell.keep{border-color:var(--accent);background:rgba(76,194,255,.08)}
.cell.keep .pos{color:var(--accent)}
.dc-foot{display:flex;align-items:center;gap:9px;margin-top:14px;position:relative;font-size:.8rem;color:var(--muted);flex-wrap:wrap}
.dc-foot .key{font-family:var(--mono);background:var(--panel2);border:1px solid var(--line);border-radius:6px;padding:2px 8px;color:var(--accent);font-size:.74rem}
@media(max-width:520px){.cell .sym{font-size:1.2rem}}

/* steps strip */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.step .n{font-family:var(--mono);font-size:.78rem;color:var(--accent);border:1px solid var(--line2);border-radius:8px;width:30px;height:30px;display:grid;place-items:center;margin-bottom:14px}
.step h3{font-size:1.05rem;margin-bottom:6px}
.step p{font-size:.92rem;color:var(--muted)}
@media(max-width:820px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.steps{grid-template-columns:1fr}}

/* tinted band */
.band{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* pains */
.pains{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pain{display:flex;gap:14px;align-items:flex-start}
.pain .ic{flex:none;width:38px;height:38px;border-radius:10px;background:var(--panel);border:1px solid var(--line2);display:grid;place-items:center;color:var(--amber)}
.pain h3{font-size:1rem;margin-bottom:3px}
.pain p{font-size:.9rem;color:var(--muted)}
@media(max-width:780px){.pains{grid-template-columns:1fr}}

/* how diagram */
.how{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line2);border-radius:var(--radius);overflow:hidden}
.how-step{padding:30px 26px;border-right:1px solid var(--line2);position:relative;background:var(--panel)}
.how-step:last-child{border-right:0}
.how-step .big{font-family:var(--mono);font-size:.8rem;color:var(--accent);margin-bottom:16px;letter-spacing:.1em}
.how-step h3{font-size:1.15rem;margin-bottom:10px}
.how-step p{font-size:.93rem;color:var(--muted)}
.how-step .arrow{position:absolute;right:-11px;top:50%;transform:translateY(-50%);z-index:2;width:22px;height:22px;background:var(--bg);border:1px solid var(--line2);border-radius:50%;display:grid;place-items:center;color:var(--accent);font-size:.7rem}
@media(max-width:820px){.how{grid-template-columns:1fr}.how-step{border-right:0;border-bottom:1px solid var(--line2)}.how-step .arrow{display:none}}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.18s}
.card:hover{border-color:var(--line2);transform:translateY(-2px)}
.card .ic{width:40px;height:40px;border-radius:10px;background:rgba(76,194,255,.1);border:1px solid var(--line2);display:grid;place-items:center;color:var(--accent);margin-bottom:16px}
.card h3{font-size:1.08rem;margin-bottom:7px}
.card p{font-size:.93rem;color:var(--muted)}
@media(max-width:820px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.cards{grid-template-columns:1fr}}

/* security split */
.sec-split{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.col{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.col.protect{border-top:3px solid var(--ok)}
.col.implement{border-top:3px solid var(--amber)}
.col h3{font-size:1.1rem;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.col ul{list-style:none;margin:0;padding:0}
.col li{display:flex;gap:11px;align-items:flex-start;padding:9px 0;font-size:.95rem;border-bottom:1px solid var(--line)}
.col li:last-child{border-bottom:0}
.col li .tick{flex:none;margin-top:2px;color:var(--ok);font-family:var(--mono)}
.col.implement li .tick{color:var(--amber)}
.nodisclaim{margin-top:18px;background:var(--panel);border:1px dashed var(--line2);border-radius:var(--radius-sm);padding:16px 20px;font-size:.92rem;color:var(--muted)}
.nodisclaim b{color:var(--ink);font-family:var(--display)}
@media(max-width:780px){.sec-split{grid-template-columns:1fr}}

/* developer / code */
.dev-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
.codeblock{background:#0a0e13;border:1px solid var(--line2);border-radius:var(--radius);overflow:hidden;font-family:var(--mono);font-size:.82rem}
.cb-top{display:flex;align-items:center;gap:7px;padding:11px 15px;border-bottom:1px solid var(--line);background:var(--panel)}
.cb-top .d{width:11px;height:11px;border-radius:50%;background:var(--line2)}
.cb-top .fn{margin-left:8px;color:var(--faint);font-size:.74rem}
.codeblock pre{margin:0;padding:18px;overflow-x:auto;line-height:1.7;color:#c9d4e0}
.tok-k{color:#ff9d6b}.tok-s{color:#9fe6a0}.tok-c{color:#5d6b7d;font-style:italic}.tok-f{color:var(--accent)}.tok-v{color:#e6b454}
@media(max-width:820px){.dev-grid{grid-template-columns:1fr;gap:28px}}

/* trust */
.trust-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:8px}
.trust-chip{font-family:var(--mono);font-size:.84rem;color:var(--muted);background:var(--panel);border:1px solid var(--line);border-radius:30px;padding:10px 18px;display:inline-flex;align-items:center;gap:9px}
.trust-chip svg{width:16px;height:16px;color:var(--accent)}

/* faq */
.faq{max-width:760px;margin:0 auto}
details{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px;background:var(--panel);overflow:hidden}
details[open]{border-color:var(--line2)}
summary{cursor:pointer;padding:18px 20px;font-weight:600;font-family:var(--display);font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
summary::-webkit-details-marker{display:none}
summary .pm{color:var(--accent);font-family:var(--mono);transition:.2s;flex:none}
details[open] summary .pm{transform:rotate(45deg)}
details .ans{padding:0 20px 18px;color:var(--muted);font-size:.95rem}

/* tables (pricing/compare) */
.ptable{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plan{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column}
.plan.featured{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.plan h3{font-size:1.2rem;margin-bottom:6px}
.plan .price{font-family:var(--display);font-size:2rem;font-weight:800;margin:10px 0}
.plan .price small{font-family:var(--body);font-size:.85rem;color:var(--muted);font-weight:400}
.plan ul{list-style:none;padding:0;margin:16px 0 22px}
.plan li{font-size:.92rem;color:var(--muted);padding:7px 0;border-bottom:1px solid var(--line);display:flex;gap:9px}
.plan li:last-child{border-bottom:0}
.plan .btn{margin-top:auto}
@media(max-width:820px){.ptable{grid-template-columns:1fr}}

/* forms */
.form{max-width:560px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:.85rem;color:var(--muted);font-family:var(--mono);letter-spacing:.04em}
.field input,.field textarea,.field select{
  background:var(--panel);color:var(--ink);border:1px solid var(--line2);border-radius:10px;
  padding:12px 13px;font-size:1rem;font-family:var(--body)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.hp{position:absolute;left:-9999px}
.banner{padding:13px 16px;border-radius:var(--radius-sm);margin-bottom:18px;border:1px solid transparent;font-size:.95rem}
.banner.ok{background:#10261c;border-color:var(--ok)}
.banner.err{background:#2a1512;border-color:var(--err)}

/* prose (legal/about/docs) */
.prose{max-width:760px}
.prose h2{font-size:1.4rem;margin:34px 0 12px}
.prose h3{font-size:1.1rem;margin:24px 0 8px}
.prose p,.prose li{color:var(--muted);font-size:1rem}
.prose ul{padding-left:20px}
.prose li{margin:6px 0}
.prose code{font-family:var(--mono);background:var(--panel2);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:.85em;color:var(--accent)}
.callout{background:var(--panel);border:1px dashed var(--amber);border-radius:var(--radius-sm);padding:16px 20px;margin:22px 0;font-size:.92rem;color:var(--muted)}
.callout b{color:var(--amber);font-family:var(--display)}

/* docs layout */
.docs-grid{display:grid;grid-template-columns:220px 1fr;gap:40px;align-items:start}
.docs-nav{position:sticky;top:84px}
.docs-nav a{display:block;color:var(--muted);font-size:.92rem;padding:7px 0;border-left:2px solid var(--line);padding-left:14px}
.docs-nav a:hover{color:var(--ink);border-color:var(--accent)}
@media(max-width:820px){.docs-grid{grid-template-columns:1fr}.docs-nav{position:static}}

/* final cta */
.final{text-align:center;background:linear-gradient(180deg,var(--bg2),var(--bg));border-top:1px solid var(--line)}
.final h2{font-size:clamp(2rem,4.4vw,3rem);font-weight:800;max-width:18ch;margin:0 auto 16px}
.final .sub{color:var(--muted);font-size:1.1rem;margin-bottom:28px}
.final-ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* footer */
footer{border-top:1px solid var(--line);padding:46px 0 60px;background:var(--bg)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.foot-grid h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin:0 0 14px}
.foot-grid a{display:block;color:var(--muted);font-size:.92rem;margin-bottom:9px}
.foot-grid a:hover{color:var(--ink)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;margin-top:36px;padding-top:22px;border-top:1px solid var(--line);font-size:.84rem;color:var(--faint);flex-wrap:wrap;gap:10px}
@media(max-width:780px){.foot-grid{grid-template-columns:1fr 1fr}}

/* load animation */
.reveal{opacity:0;transform:translateY(14px);animation:rise .7s cubic-bezier(.2,.7,.2,1) forwards}
@keyframes rise{to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){
  .reveal{animation:none;opacity:1;transform:none}
  .cell{transition:none}.blink{animation:none}
  html{scroll-behavior:auto}
}