/* ============ Luhnly design tokens ============
   Color:
   --ink       #0b0d16  page background base
   --ink-2     #12141f  raised background
   --panel     #161927  card/panel surface
   --line      #262a3d  hairline borders
   --paper     #eef0f7  primary text
   --paper-dim #9297b3  secondary text
   --indigo    #6d5bff  primary accent (brand)
   --violet    #a78bfa  secondary accent (gradient partner)
   --amber     #f2a93b  specimen / caution accent
   --good      #33d69f  validity / success accent
   Type:
   Display  — 'Space Grotesk' (headlines, wordmark)
   Body     — 'Inter' (paragraphs, UI)
   Data     — 'IBM Plex Mono' (numbers, code, labels)
================================================= */

:root{
  --ink:#0b0d16;
  --ink-2:#12141f;
  --panel:#161927;
  --panel-2:#1b1e30;
  --line:#262a3d;
  --paper:#eef0f7;
  --paper-dim:#9297b3;
  --indigo:#6d5bff;
  --indigo-dim:#4c3fa0;
  --violet:#a78bfa;
  --amber:#f2a93b;
  --good:#33d69f;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:9px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(109,91,255,.16) 0%, transparent 60%),
    radial-gradient(900px 520px at 108% 6%, rgba(167,139,250,.14) 0%, transparent 55%),
    radial-gradient(700px 500px at 50% 115%, rgba(51,214,159,.06) 0%, transparent 60%),
    var(--ink);
  color:var(--paper);
  font-family:'Inter',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
.display{font-family:'Space Grotesk',sans-serif;}
.mono{font-family:'IBM Plex Mono',monospace;}
a{color:inherit;text-decoration:none;}
img,svg{display:block;}

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

.wrap{max-width:1100px;margin:0 auto;padding:0 24px;}

/* ---------------- nav ---------------- */
header.site-nav{
  position:sticky;top:0;z-index:40;
  backdrop-filter:blur(14px);
  background:rgba(11,13,22,.72);
  border-bottom:1px solid var(--line);
}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 0;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:none;position:relative;
  background:linear-gradient(135deg,var(--indigo),var(--violet));
  box-shadow:0 6px 18px -8px rgba(109,91,255,.7);
}
.brand-mark svg{position:absolute;inset:0;margin:auto;}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--paper-dim);}
.nav-links a{transition:color .15s ease;}
.nav-links a:hover{color:var(--paper);}
.nav-cta{
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--amber);border:1px solid rgba(242,169,59,.35);background:rgba(242,169,59,.08);
  padding:6px 12px;border-radius:999px;white-space:nowrap;
}
.nav-toggle{display:none;}
@media (max-width:720px){
  .nav-links{display:none;}
}

/* ---------------- hero ---------------- */
.hero{padding:28px 0 18px;}
.eyebrow-row{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.dot-pulse{width:7px;height:7px;border-radius:50%;background:var(--good);box-shadow:0 0 0 4px rgba(51,214,159,.15);animation:pulse 2.4s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}
.eyebrow-text{font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--paper-dim);}

h1.headline{
  font-family:'Space Grotesk',sans-serif;
  font-size:clamp(32px,5vw,52px);
  line-height:1.05;font-weight:700;letter-spacing:-.02em;
  margin:0 0 16px;max-width:15ch;
}
h1.headline .grad{
  background:linear-gradient(100deg,var(--indigo),var(--violet) 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{color:var(--paper-dim);font-size:16.5px;max-width:56ch;line-height:1.6;margin:0 0 34px;}

/* ---------------- stage: card + controls ---------------- */
.stage{
  display:grid;grid-template-columns:minmax(300px,400px) 1fr;grid-template-rows:auto auto;
  column-gap:38px;row-gap:14px;padding-bottom:44px;
}
.card-stand{display:contents;}
.stage .card{grid-column:1;grid-row:1;}
.stage .card-meta{grid-column:1;grid-row:2;}
.stage .panel{grid-column:2;grid-row:1;align-self:stretch;}
@media (max-width:780px){
  .stage{grid-template-columns:1fr;}
  .stage .card, .stage .card-meta, .stage .panel{grid-column:1;grid-row:auto;}
}

.card{
  position:relative;width:100%;aspect-ratio:1.586/1;border-radius:20px;
  padding:24px 26px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.07), rgba(255,255,255,0) 42%),
    linear-gradient(155deg,#232945,#12131f 70%);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 34px 70px -28px rgba(0,0,0,.75), 0 2px 0 rgba(255,255,255,.03) inset;
  overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;
  transition:transform .3s ease;
}
.card:hover{transform:translateY(-3px);}
.card::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:18px 18px;
  mask-image:radial-gradient(circle at 28% 18%, black, transparent 78%);
}
.card::after{
  content:"";position:absolute;top:-40%;right:-20%;width:70%;height:140%;
  background:radial-gradient(closest-side, rgba(167,139,250,.18), transparent 70%);
  pointer-events:none;
}
.stamp{
  position:absolute;top:40%;left:-8%;width:130%;text-align:center;transform:rotate(-15deg);
  font-family:'IBM Plex Mono',monospace;font-weight:700;font-size:14px;letter-spacing:.42em;
  color:rgba(242,169,59,.5);border-top:2px solid rgba(242,169,59,.42);border-bottom:2px solid rgba(242,169,59,.42);
  padding:4px 0;pointer-events:none;text-transform:uppercase;
}
.valid-badge{
  display:inline-flex;align-items:center;gap:5px;align-self:flex-end;
  font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--good);background:rgba(51,214,159,.1);border:1px solid rgba(51,214,159,.3);
  padding:4px 8px;border-radius:999px;
  opacity:0;transition:opacity .35s ease;
}
.valid-badge.show{opacity:1;}
.card-row-top{display:flex;justify-content:space-between;align-items:flex-start;position:relative;z-index:1;}
.network-wrap{display:flex;flex-direction:column;align-items:flex-end;gap:6px;}
.chip{width:42px;height:32px;border-radius:6px;background:linear-gradient(135deg,#d7c481,#a98a3c);position:relative;}
.chip::after{content:"";position:absolute;inset:5px;background:repeating-linear-gradient(90deg, rgba(0,0,0,.25) 0 2px, transparent 2px 8px);border-radius:3px;}
.network{font-weight:700;font-size:17px;letter-spacing:.02em;color:#fff;font-family:'Space Grotesk',sans-serif;}
.card-number{
  position:relative;z-index:1;font-family:'IBM Plex Mono',monospace;
  font-size:clamp(19px,2.7vw,23px);letter-spacing:.09em;font-weight:600;color:#f5f6fb;
  text-shadow:0 1px 0 rgba(255,255,255,.15);
}
.card-row-bottom{display:flex;justify-content:space-between;align-items:flex-end;position:relative;z-index:1;gap:12px;}
.card-field{display:flex;flex-direction:column;gap:3px;}
.card-field .label{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.4);font-family:'IBM Plex Mono',monospace;}
.card-field .value{font-family:'IBM Plex Mono',monospace;font-size:14px;color:#f5f6fb;letter-spacing:.06em;}

.card-meta{display:flex;gap:10px;flex-wrap:wrap;align-self:start;}
.pill{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--paper-dim);background:var(--panel);border:1px solid var(--line);padding:6px 10px;border-radius:8px;}
.pill b{color:var(--good);font-weight:600;}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;position:relative;overflow:hidden;}

/* ---------------- cursor spotlight ---------------- */
.spotlight{
  position:absolute;inset:0;
  opacity:0;
  transition:opacity .35s ease;
  pointer-events:none;
  mix-blend-mode:screen;
}
.spotlight.show{opacity:1;}
.field-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
.field{flex:1;min-width:150px;}
.field label{display:block;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--paper-dim);margin-bottom:7px;font-family:'IBM Plex Mono',monospace;}
select{
  width:100%;font-family:'Inter',sans-serif;font-size:14px;padding:11px 12px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--ink-2);color:var(--paper);appearance:none;
  background-image:linear-gradient(45deg, transparent 50%, var(--paper-dim) 50%), linear-gradient(135deg, var(--paper-dim) 50%, transparent 50%);
  background-position:calc(100% - 18px) center, calc(100% - 13px) center;background-size:5px 5px, 5px 5px;background-repeat:no-repeat;
}
.btn-primary{
  background:linear-gradient(135deg,var(--indigo),var(--violet));border:none;color:#fff;font-weight:700;cursor:pointer;
  padding:13px 18px;font-size:15px;border-radius:var(--radius-sm);letter-spacing:.01em;
  transition:transform .15s ease, box-shadow .15s ease;box-shadow:0 14px 26px -14px rgba(109,91,255,.7);
}
.btn-primary:hover{transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--paper);cursor:pointer;font-size:13px;padding:9px 14px;font-weight:600;border-radius:var(--radius-sm);}
.btn-ghost:hover{border-color:var(--indigo-dim);color:#fff;}
.actions{display:flex;gap:10px;margin-top:6px;}

.batch{margin-top:24px;}
.batch-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;}
.batch-head span{font-size:12px;color:var(--paper-dim);font-family:'IBM Plex Mono',monospace;}
table{width:100%;border-collapse:collapse;font-family:'IBM Plex Mono',monospace;font-size:12.5px;}
thead th{text-align:left;color:var(--paper-dim);font-weight:500;padding:8px 8px;border-bottom:1px solid var(--line);text-transform:uppercase;letter-spacing:.08em;font-size:10.5px;}
tbody td{padding:9px 8px;border-bottom:1px solid rgba(38,42,61,.6);color:var(--paper);}
tbody tr:hover{background:rgba(109,91,255,.06);}
.copy-cell{cursor:pointer;color:var(--indigo);white-space:nowrap;}
.copy-cell:hover{color:#fff;text-decoration:underline;}

.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);
  background:#12141f;border:1px solid var(--indigo-dim);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;
  opacity:0;pointer-events:none;transition:all .25s ease;font-family:'IBM Plex Mono',monospace;
  box-shadow:0 20px 40px -18px rgba(0,0,0,.7);z-index:50;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

.ad-slot{
  border:1px dashed var(--line);border-radius:10px;color:var(--paper-dim);font-size:11px;font-family:'IBM Plex Mono',monospace;
  text-align:center;padding:14px;letter-spacing:.08em;text-transform:uppercase;margin:40px 0;
}

/* ---------------- content sections ---------------- */
section.content{padding:16px 0 8px;border-top:1px solid var(--line);}
section.content h2{font-family:'Space Grotesk',sans-serif;font-size:26px;font-weight:700;margin:44px 0 16px;letter-spacing:-.01em;}
section.content p{color:var(--paper-dim);font-size:15px;line-height:1.75;margin:0 0 14px;}
section.content ul{padding-left:20px;color:var(--paper-dim);font-size:15px;line-height:1.8;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:30px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:760px){ .grid-2,.grid-3{grid-template-columns:1fr;} }

.steps{counter-reset:step;display:grid;gap:16px;margin-top:20px;}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);padding:18px 20px;
  position:relative;overflow:hidden;
}
.step-num{
  counter-increment:step;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:14px;
  width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--indigo),var(--violet));color:#fff;
}
.step-num::before{content:counter(step);}
.step h3{margin:0 0 4px;font-size:15.5px;font-family:'Space Grotesk',sans-serif;}
.step p{margin:0;font-size:14px;}

.bin-table{width:100%;border-collapse:collapse;margin-top:18px;font-size:14px;}
.bin-table th{text-align:left;color:var(--paper-dim);font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:10px 12px;border-bottom:1px solid var(--line);}
.bin-table td{padding:12px;border-bottom:1px solid rgba(38,42,61,.6);color:var(--paper);}
.bin-table td.mono{color:var(--paper-dim);}

.faq-item{border-bottom:1px solid var(--line);padding:18px 0;}
.faq-item summary{
  cursor:pointer;font-family:'Space Grotesk',sans-serif;font-size:16px;font-weight:600;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;color:var(--indigo);transition:transform .2s ease;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{margin-top:10px;}

.callout{
  background:rgba(242,169,59,.07);border:1px solid rgba(242,169,59,.25);border-radius:var(--radius-md);
  padding:18px 20px;font-size:14px;color:#e9d3a8;line-height:1.65;
}
.callout b{color:var(--amber);}

/* ---------------- footer ---------------- */
footer.site-footer{border-top:1px solid var(--line);padding:36px 0 44px;margin-top:50px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:28px;}
@media (max-width:700px){ .footer-grid{grid-template-columns:1fr;} }
.footer-grid h4{font-family:'Space Grotesk',sans-serif;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--paper-dim);margin:0 0 12px;}
.footer-grid a{display:block;color:var(--paper-dim);font-size:14px;margin-bottom:9px;transition:color .15s ease;}
.footer-grid a:hover{color:var(--paper);}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  color:var(--paper-dim);font-size:12.5px;
}

/* ---------------- legal page typography ---------------- */
#_lc_notice{
  position:fixed;left:0;right:0;bottom:0;z-index:99999;
  background:linear-gradient(90deg,#e5484d,#ff8a4d);
  color:#fff;text-align:center;font-family:'IBM Plex Mono',monospace;
  font-size:13px;letter-spacing:.02em;padding:12px 18px;
  box-shadow:0 -8px 28px rgba(0,0,0,.4);
}
#_lc_notice a{color:#fff;}
.legal{padding:52px 0 80px;}
.legal .updated{color:var(--paper-dim);font-size:13px;font-family:'IBM Plex Mono',monospace;margin-bottom:36px;}
.legal h1{font-family:'Space Grotesk',sans-serif;font-size:clamp(28px,4vw,38px);margin:0 0 8px;}
.legal h2{font-family:'Space Grotesk',sans-serif;font-size:20px;margin:36px 0 12px;}
.legal p, .legal li{color:var(--paper-dim);font-size:15px;line-height:1.75;}
.legal ul{padding-left:20px;}
.legal a.inline{color:var(--indigo);text-decoration:underline;}