:root{
  --ink:#0a1526;
  --ink-2:#101d33;
  --ink-line:#22334f;
  --paper:#ffffff;
  --paper-2:#f3f4f7;
  --paper-line:#dde1e8;
  --navy:#1d3f72;
  --navy-deep:#122a52;
  --steel:#7b9bc9;
  --slate:#5b6b85;
  --text-light:#eef1f6;
  --muted-light:#93a0b8;
  --text-dark:#12151c;
  --muted-dark:#5b6472;
  --serif:'Fraunces', ui-serif, Georgia, 'Times New Roman', serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--sans);
  background:var(--ink);
  color:var(--text-light);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block; max-width:100%;}
a{color:inherit;}
.wrap{max-width:1180px; margin:0 auto; padding:0 32px;}
@media(max-width:640px){ .wrap{padding:0 20px;} }

#progress{position:fixed; top:0; left:0; height:3px; width:0%; background:linear-gradient(90deg,var(--navy-deep),var(--steel)); z-index:999; transition:width .1s linear;}

header.nav{
  position:sticky; top:0; z-index:900;
  background:rgba(10,21,38,.88); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--ink-line);
}
.nav-inner{display:flex; align-items:center; justify-content:space-between; padding:16px 32px; max-width:1180px; margin:0 auto;}
.brand{display:flex; align-items:center; gap:10px; font-family:var(--serif); font-size:1.02rem; letter-spacing:.02em; color:var(--text-light); text-decoration:none;}
.brand .mark{width:9px; height:9px; border-radius:50%; background:var(--steel); box-shadow:0 0 0 3px rgba(123,155,201,.22);}
.brand b{color:var(--steel); font-weight:600;}
nav.links{display:flex; gap:26px; font-size:.8rem; letter-spacing:.03em; text-transform:uppercase; color:var(--muted-light);}
nav.links a{text-decoration:none; transition:color .2s;}
nav.links a:hover, nav.links a.active{color:var(--steel);}
.nav-cta{
  font-size:.78rem; letter-spacing:.03em; text-transform:uppercase; text-decoration:none;
  color:var(--ink); background:var(--steel); padding:10px 18px; border-radius:2px; font-weight:600;
  white-space:nowrap;
}
@media(max-width:900px){ nav.links{display:none;} }

section{padding:100px 0;}
@media(max-width:640px){ section{padding:64px 0;} }
.section-dark{background:var(--ink); color:var(--text-light);}
.section-ink2{background:var(--ink-2); color:var(--text-light);}
.section-light{background:var(--paper); color:var(--text-dark);}
.section-light-2{background:var(--paper-2); color:var(--text-dark);}

.eyebrow{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--steel); display:flex; align-items:center; gap:10px; margin-bottom:22px;
}
.section-light .eyebrow, .section-light-2 .eyebrow{color:var(--navy);}
.eyebrow::before{content:''; width:26px; height:1px; background:currentColor; opacity:.6;}

h1,h2,h3{font-family:var(--serif); font-weight:500; letter-spacing:-.01em;}
h2{font-size:clamp(1.9rem,3.4vw,2.7rem); margin-bottom:22px; line-height:1.15;}
h3{font-size:1.28rem; margin-bottom:10px;}
.lede{font-size:1.12rem; color:var(--muted-light); max-width:680px; line-height:1.7;}
.section-light .lede, .section-light-2 .lede{color:var(--muted-dark);}
.cols2{display:grid; grid-template-columns:1fr 1fr; gap:60px;}
@media(max-width:860px){ .cols2{grid-template-columns:1fr; gap:32px;} }

/* ---------------- BREADCRUMBS ---------------- */
.crumbs{
  font-family:var(--mono); font-size:.74rem; color:var(--muted-light); letter-spacing:.03em;
  padding:18px 0 0; display:flex; gap:8px; flex-wrap:wrap;
}
.crumbs a{text-decoration:none; color:var(--muted-light);}
.crumbs a:hover{color:var(--steel);}
.crumbs span{opacity:.5;}
.crumbs .current{color:var(--text-light);}

/* ---------------- PAGE HERO (interior pages) ---------------- */
.page-hero{
  position:relative; padding:64px 0 68px; overflow:hidden;
  background:
    radial-gradient(ellipse 800px 420px at 82% -20%, rgba(123,155,201,.14), transparent 60%),
    var(--ink);
  border-bottom:1px solid var(--ink-line);
}
.page-hero .case-tag{margin-bottom:22px;}
.page-hero h1{font-size:clamp(2.1rem,4.4vw,3.2rem); line-height:1.08; letter-spacing:-.02em; max-width:820px; color:var(--text-light);}
.page-hero h1 em{font-style:italic; color:var(--steel);}
.page-hero .sub{margin-top:20px; font-size:1.08rem; max-width:640px; color:var(--muted-light); line-height:1.7;}

/* ---------------- HOME HERO ---------------- */
.hero{
  position:relative; padding:150px 0 90px; overflow:hidden;
  background:
    radial-gradient(ellipse 900px 500px at 78% -10%, rgba(123,155,201,.14), transparent 60%),
    radial-gradient(ellipse 700px 500px at 5% 110%, rgba(29,63,114,.28), transparent 60%),
    var(--ink);
}
.hero-grid{
  position:absolute; inset:0; opacity:.35;
  background-image:linear-gradient(var(--ink-line) 1px, transparent 1px), linear-gradient(90deg, var(--ink-line) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 900px 500px at 60% 10%, black, transparent 75%);
}
.hero-inner{position:relative; z-index:2;}
.case-tag{
  display:inline-flex; align-items:center; gap:8px; font-family:var(--mono); font-size:.72rem;
  letter-spacing:.1em; color:var(--muted-light); border:1px solid var(--ink-line); padding:7px 14px;
  border-radius:20px; margin-bottom:28px; text-transform:uppercase;
}
.case-tag .pulse{width:7px; height:7px; border-radius:50%; background:var(--steel); position:relative;}
.case-tag .pulse::after{
  content:''; position:absolute; inset:-5px; border-radius:50%; border:1px solid var(--steel);
  animation:ring 2.4s ease-out infinite;
}
@keyframes ring{0%{transform:scale(.4); opacity:.9;} 100%{transform:scale(2.2); opacity:0;}}

h1.headline{
  font-size:clamp(2.6rem,6vw,4.6rem); line-height:1.02; letter-spacing:-.02em;
  max-width:940px; color:var(--text-light);
}
h1.headline em{font-style:italic; color:var(--steel);}
.hero-sub{margin-top:26px; font-size:1.15rem; max-width:660px; color:var(--muted-light); line-height:1.7;}
.hero-ctas{display:flex; gap:16px; margin-top:42px; flex-wrap:wrap;}
.btn{
  display:inline-flex; align-items:center; gap:10px; text-decoration:none; font-weight:600;
  font-size:.86rem; letter-spacing:.02em; padding:15px 26px; border-radius:2px; transition:all .2s;
}
.btn-primary{background:var(--steel); color:var(--ink);}
.btn-primary:hover{background:#95b3da; transform:translateY(-1px);}
.btn-ghost{border:1px solid var(--ink-line); color:var(--text-light);}
.btn-ghost:hover{border-color:var(--steel); color:var(--steel);}
.section-light .btn-ghost, .section-light-2 .btn-ghost{border:1px solid var(--paper-line); color:var(--text-dark);}
.section-light .btn-ghost:hover, .section-light-2 .btn-ghost:hover{border-color:var(--navy); color:var(--navy);}
.section-light .btn-primary, .section-light-2 .btn-primary{background:var(--navy); color:#fff;}
.section-light .btn-primary:hover, .section-light-2 .btn-primary:hover{background:var(--navy-deep);}

.monitor{margin-top:70px; border-top:1px solid var(--ink-line); padding-top:26px;}
.monitor-label{display:flex; justify-content:space-between; font-family:var(--mono); font-size:.68rem; letter-spacing:.12em; color:var(--muted-light); text-transform:uppercase; margin-bottom:12px;}
.monitor-label span:last-child{color:var(--steel);}
.monitor-line{width:100%; height:70px;}
.monitor-line path{fill:none; stroke:var(--steel); stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round;
  stroke-dasharray:1400; stroke-dashoffset:1400; animation:draw 6.5s ease-in-out infinite;}
@keyframes draw{ 0%{stroke-dashoffset:1400;} 55%{stroke-dashoffset:0;} 100%{stroke-dashoffset:-1400;} }
@media (prefers-reduced-motion:reduce){ .monitor-line path{animation:none; stroke-dashoffset:0;} .case-tag .pulse::after{animation:none;} }

/* ---------------- DEFINITION ---------------- */
.def-term{font-family:var(--serif); font-size:2.2rem; color:var(--text-dark); margin-bottom:6px;}
.def-term span{color:var(--navy); font-style:italic; font-size:1.1rem; font-family:var(--sans); font-weight:500; margin-left:12px;}
.def-note{font-family:var(--mono); font-size:.85rem; color:var(--muted-dark); margin-bottom:28px;}
.def-list li{list-style:none; display:flex; gap:14px; align-items:flex-start;}
.def-list .mark{font-family:var(--mono); font-size:.75rem; color:var(--navy); padding-top:5px; flex-shrink:0;}
.also-known{background:var(--paper-2); border:1px solid var(--paper-line); border-radius:4px; padding:24px 26px; margin-top:36px;}
.also-known .k{font-family:var(--mono); font-size:.7rem; text-transform:uppercase; letter-spacing:.1em; color:var(--navy); display:block; margin-bottom:10px;}
.chip-row{display:flex; gap:10px; flex-wrap:wrap;}
.chip{font-size:.82rem; border:1px solid var(--paper-line); padding:6px 12px; border-radius:20px; color:var(--muted-dark); font-family:var(--mono);}

/* ---------------- TIMELINE ---------------- */
.timeline{position:relative; margin-top:56px; padding-left:2px;}
.timeline::before{content:''; position:absolute; left:9px; top:6px; bottom:6px; width:1px; background:linear-gradient(var(--steel), var(--ink-line));}
.tl-item{position:relative; padding-left:44px; padding-bottom:44px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:''; position:absolute; left:2px; top:4px; width:16px; height:16px; border-radius:50%; background:var(--ink); border:2px solid var(--steel);}
.tl-year{font-family:var(--mono); font-size:.78rem; color:var(--steel); letter-spacing:.06em; margin-bottom:6px; display:block;}
.tl-item h3{color:var(--text-light); font-size:1.15rem;}
.tl-item p{color:var(--muted-light); font-size:.96rem; max-width:640px;}

/* ---------------- ACCORDION ---------------- */
.accordion{margin-top:44px; border-top:1px solid var(--paper-line);}
details{border-bottom:1px solid var(--paper-line);}
details summary{
  cursor:pointer; list-style:none; padding:22px 4px; display:flex; justify-content:space-between; align-items:center;
  font-family:var(--serif); font-size:1.12rem; color:var(--text-dark);
}
details summary::-webkit-details-marker{display:none;}
details summary .plus{font-family:var(--mono); font-size:1.1rem; color:var(--navy); transition:transform .25s;}
details[open] summary .plus{transform:rotate(45deg);}
details .panel{padding:0 4px 26px; color:var(--muted-dark); font-size:.98rem; max-width:760px; line-height:1.75;}
details .panel .cite{font-family:var(--mono); font-size:.78rem; color:var(--navy); display:block; margin-top:12px;}

/* ---------------- COMPARISON TABLE ---------------- */
.table-wrap{margin-top:50px; overflow-x:auto; border:1px solid var(--ink-line); border-radius:4px;}
table{width:100%; border-collapse:collapse; min-width:720px; font-size:.92rem;}
thead th{
  text-align:left; padding:16px 20px; font-family:var(--mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--muted-light); background:var(--ink-2); border-bottom:1px solid var(--ink-line);
}
thead th.hl{color:var(--steel);}
tbody td{padding:18px 20px; border-bottom:1px solid var(--ink-line); vertical-align:top; color:var(--text-light);}
tbody tr:last-child td{border-bottom:none;}
tbody td.hl{background:rgba(123,155,201,.06); font-weight:500;}
tbody td.label{font-family:var(--mono); font-size:.78rem; color:var(--muted-light); white-space:nowrap;}

/* ---------------- SCOPE GRID ---------------- */
.grid3{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--paper-line); margin-top:50px; border:1px solid var(--paper-line);}
@media(max-width:860px){ .grid3{grid-template-columns:1fr 1fr;} }
@media(max-width:560px){ .grid3{grid-template-columns:1fr;} }
.g-card{background:var(--paper); padding:32px 28px;}
.g-card .num{font-family:var(--mono); font-size:.75rem; color:var(--navy); margin-bottom:14px; display:block;}
.g-card p{color:var(--muted-dark); font-size:.92rem; margin-top:8px;}

/* ---------------- TRIGGER LIST ---------------- */
.trigger-list{margin-top:50px; display:flex; flex-direction:column;}
.trigger{display:grid; grid-template-columns:60px 1fr; gap:24px; padding:26px 0; border-bottom:1px solid var(--ink-line); align-items:start;}
.trigger:first-child{border-top:1px solid var(--ink-line);}
.trigger .idx{font-family:var(--mono); color:var(--steel); font-size:1rem; padding-top:4px;}
.trigger h3{color:var(--text-light); margin-bottom:6px;}
.trigger p{color:var(--muted-light); font-size:.95rem; max-width:620px;}

/* ---------------- FRAUD / CRIME SECTION ---------------- */
.fraud-grid{margin-top:54px; display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--ink-line); border:1px solid var(--ink-line);}
@media(max-width:760px){ .fraud-grid{grid-template-columns:1fr;} }
.fraud-card{background:var(--ink-2); padding:30px 30px;}
.fraud-card h3{color:var(--text-light); font-size:1.05rem; display:flex; align-items:center; gap:10px;}
.fraud-card h3 .flag{font-family:var(--mono); font-size:.7rem; color:var(--steel); border:1px solid var(--ink-line); padding:3px 8px; border-radius:12px; text-transform:uppercase;}
.fraud-card p{color:var(--muted-light); font-size:.92rem; margin-top:10px;}
.fraud-note{margin-top:30px; font-size:.86rem; color:var(--muted-light); border-left:2px solid var(--steel); padding-left:18px; max-width:760px;}

/* ---------------- AUTHORITY ---------------- */
.auth-grid{margin-top:54px; display:grid; grid-template-columns:1fr 1fr; gap:0; border:1px solid var(--paper-line); border-radius:4px; overflow:hidden;}
@media(max-width:760px){ .auth-grid{grid-template-columns:1fr;} }
.auth-col{padding:36px 34px;}
.auth-col.req{background:var(--paper-2); border-right:1px solid var(--paper-line);}
@media(max-width:760px){ .auth-col.req{border-right:none; border-bottom:1px solid var(--paper-line);} }
.auth-col .k{font-family:var(--mono); font-size:.7rem; text-transform:uppercase; letter-spacing:.1em; color:var(--navy); margin-bottom:22px; display:block;}
.auth-row{display:flex; gap:14px; padding:16px 0; border-bottom:1px dashed var(--paper-line); align-items:flex-start;}
.auth-row:last-child{border-bottom:none;}
.auth-row .ico{font-family:var(--mono); color:var(--navy); font-size:.85rem; padding-top:2px;}
.auth-row div b{display:block; font-size:.95rem; color:var(--text-dark); margin-bottom:3px;}
.auth-row div span{font-size:.86rem; color:var(--muted-dark);}
.auth-col.match .auth-row .ico{color:var(--navy-deep);}

.credential-strip{
  margin-top:60px; border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line);
  padding:28px 0; overflow:hidden; white-space:nowrap; position:relative;
}
.credential-strip::before, .credential-strip::after{content:''; position:absolute; top:0; bottom:0; width:80px; z-index:2;}
.credential-strip::before{left:0; background:linear-gradient(90deg,var(--paper),transparent);}
.credential-strip::after{right:0; background:linear-gradient(270deg,var(--paper),transparent);}
.marquee{display:inline-flex; gap:0; animation:scroll 34s linear infinite;}
.marquee span{font-family:var(--serif); font-style:italic; font-size:1.15rem; color:var(--muted-dark); padding:0 34px; white-space:nowrap;}
.marquee span b{font-style:normal; color:var(--navy); font-family:var(--mono); font-size:.8rem; margin-right:10px;}
@keyframes scroll{ from{transform:translateX(0);} to{transform:translateX(-50%);} }
@media (prefers-reduced-motion:reduce){ .marquee{animation:none;} }

/* ---------------- RELATED PAGES (internal linking) ---------------- */
.related{margin-top:60px;}
.related .k{font-family:var(--mono); font-size:.7rem; text-transform:uppercase; letter-spacing:.1em; color:var(--muted-light); margin-bottom:20px; display:block;}
.related-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--ink-line); border:1px solid var(--ink-line);}
@media(max-width:760px){ .related-grid{grid-template-columns:1fr;} }
.related-card{background:var(--ink-2); padding:26px 24px; text-decoration:none; display:block; transition:background .2s;}
.related-card:hover{background:#16233d;}
.related-card b{display:block; font-family:var(--serif); font-size:1.05rem; color:var(--text-light); margin-bottom:8px;}
.related-card span{font-size:.86rem; color:var(--muted-light);}
.related-card .arrow{font-family:var(--mono); color:var(--steel); font-size:.8rem; margin-top:12px; display:block;}

/* ---------------- FAQ ---------------- */
.faq-wrap{margin-top:50px;}

/* ---------------- STEPS / CTA ---------------- */
.steps{margin-top:54px; display:grid; grid-template-columns:repeat(3,1fr); gap:36px;}
@media(max-width:860px){ .steps{grid-template-columns:1fr; gap:30px;} }
.step .n{font-family:var(--serif); font-style:italic; font-size:2.4rem; color:var(--steel); line-height:1;}
.step h3{margin-top:14px; color:var(--text-light);}
.step p{color:var(--muted-light); font-size:.93rem; margin-top:6px;}

.cta-panel{
  margin-top:70px; background:var(--ink-2); border:1px solid var(--ink-line); border-radius:6px;
  padding:56px; display:flex; justify-content:space-between; align-items:center; gap:40px; flex-wrap:wrap;
}
.cta-panel h3{font-size:1.6rem; color:var(--text-light); max-width:480px;}
.cta-panel p{color:var(--muted-light); margin-top:10px; max-width:440px; font-size:.95rem;}

footer{background:var(--ink); border-top:1px solid var(--ink-line); padding:56px 0 34px;}
.foot-grid{display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom:30px; border-bottom:1px solid var(--ink-line);}
.foot-brand{font-family:var(--serif); font-size:1.3rem; color:var(--text-light);}
.foot-brand b{color:var(--steel);}
.foot-desc{color:var(--muted-light); font-size:.88rem; max-width:360px; margin-top:10px;}
.foot-links{display:flex; gap:60px; flex-wrap:wrap;}
.foot-col .k{font-family:var(--mono); font-size:.68rem; text-transform:uppercase; letter-spacing:.1em; color:var(--muted-light); margin-bottom:14px; display:block;}
.foot-col a{display:block; text-decoration:none; color:var(--text-light); font-size:.88rem; margin-bottom:10px; opacity:.85;}
.foot-col a:hover{opacity:1; color:var(--steel);}
.foot-bottom{display:flex; justify-content:space-between; padding-top:24px; font-size:.78rem; color:var(--muted-light); flex-wrap:wrap; gap:10px;}

.reveal{opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}
@media(prefers-reduced-motion:reduce){ .reveal{opacity:1; transform:none; transition:none;} }