/* ============================================================
   Zeyn Global Commerce — 24-Hour Ad-to-Quote Leak Report
   Single-page landing. No frameworks, no build step, no JS.
   Mobile-first. System fonts only — zero network requests.
   ============================================================ */

:root{
  --paper:      #ffffff;
  --alt:        #f5f7f8;
  --alt-2:      #eceff1;
  --line:       #dfe3e6;
  --line-soft:  #e9ecee;

  --ink:        #0f1418;
  --ink-2:      #3c464e;
  --muted:      #67727b;

  --navy:       #123a63;
  --navy-deep:  #0d2b4a;
  --navy-soft:  #e7eef5;

  --crit:       #9e2b21;
  --crit-soft:  #fae8e6;
  --high:       #8a5000;
  --high-soft:  #fbf0dc;
  --med:        #4a5560;
  --med-soft:   #e9edf0;

  --ok:         #1c6b45;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --shell: 1080px;
  --gutter: 20px;

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){ html { scroll-behavior: auto; } }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: -0.017em; text-wrap: balance; }
h1 { font-size: 2rem; font-weight: 700; }
h2 { font-size: 1.5rem; font-weight: 700; }
h3 { font-size: 1.0625rem; font-weight: 650; letter-spacing: -0.008em; }
p  { margin: 0; }

a { color: var(--navy); }
a:focus-visible, .btn:focus-visible, summary:focus-visible{
  outline: 2px solid var(--navy);
  outline-offset: 3px;
  border-radius: 2px;
}

code{
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--alt-2);
  padding: 2px 6px;
  border-radius: 3px;
  overflow-wrap: anywhere;
}

.shell{
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip{
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 10px 16px;
  z-index: 50;
}
.skip:focus{ left: 0; }

/* ---------- header ---------- */
.site-head{
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}
.head-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-block: 12px;
  flex-wrap: wrap;
}
.brand{ display: flex; align-items: center; gap: 9px; min-width: 0; }
.brand-mark{ color: var(--navy); display: flex; flex: none; }
.head-inner .btn-sm{ display: none; }
@media (min-width: 560px){ .head-inner .btn-sm{ display: inline-block; } }
.brand-name{
  font-weight: 650;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

/* ---------- buttons ---------- */
.btn{
  display: inline-block;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.25;
  padding: 12px 20px;
  border: 1px solid var(--navy);
  border-radius: 4px;
  text-align: center;
  transition: background .15s ease, border-color .15s ease;
}
.btn:hover{ background: var(--navy-deep); border-color: var(--navy-deep); }
.btn-sm{ padding: 9px 14px; font-size: 0.85rem; }
.btn-lg{ padding: 15px 26px; font-size: 1rem; width: 100%; }
.btn-disabled{
  background: transparent;
  color: var(--muted);
  border: 1px dashed var(--muted);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: not-allowed;
  overflow-wrap: anywhere;
}
.btn-disabled:hover{ background: transparent; border-color: var(--muted); }

/* ---------- hero ---------- */
.hero{ padding-block: 48px 44px; border-bottom: 1px solid var(--line); }
.eyebrow{
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.hero h1{ max-width: 20ch; }
.lede{
  margin-top: 18px;
  font-size: 1.0625rem;
  color: var(--ink-2);
  max-width: 62ch;
}
.hero-cta{
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}
.cta-meta{
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--muted);
}
.cta-meta strong{ color: var(--ink); font-size: 0.95rem; }

.facts{
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 6px 26px;
  font-size: 0.9rem;
  color: var(--ink-2);
}
.facts li{ display: flex; gap: 9px; }
.facts span{ color: var(--muted); flex: none; }

/* ---------- bands ---------- */
.band{ padding-block: 46px; border-bottom: 1px solid var(--line); }
.band-alt{ background: var(--alt); }
.section-intro{
  margin-top: 12px;
  color: var(--ink-2);
  max-width: 62ch;
}
.note{
  margin-top: 22px;
  font-size: 0.875rem;
  color: var(--muted);
  max-width: 64ch;
}

/* ---------- checks ---------- */
.check-grid{
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 5px;
  overflow: hidden;
}
.check{
  background: var(--paper);
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tag{
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 2px;
}
.tag-crit{ background: var(--crit-soft); color: var(--crit); }
.tag-high{ background: var(--high-soft); color: var(--high); }
.tag-med { background: var(--med-soft);  color: var(--med);  }
.check p{ font-size: 0.925rem; color: var(--ink-2); }

/* ---------- deliverables ---------- */
.deliver-list{
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: d;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 5px;
  overflow: hidden;
}
.deliver-list li{
  counter-increment: d;
  background: var(--paper);
  padding: 15px 18px 15px 52px;
  position: relative;
  font-size: 0.95rem;
  color: var(--ink-2);
}
.deliver-list li::before{
  content: counter(d, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--navy);
}
.deliver-list strong{ color: var(--ink); font-weight: 650; }

/* ---------- sample audit: ad -> destination -> observed issue ---------- */
.flow{
  margin-top: 26px;
  display: grid;
  gap: 40px;
}
.flow-step{
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 16px 18px 18px;
}
.flow-k{
  display: block;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 7px;
}
.flow-step h3{ font-size: 1.0625rem; }
.flow-step p{ margin-top: 7px; font-size: 0.9rem; color: var(--ink-2); }
/* connector chevron, decorative only */
.flow-step:not(:last-child)::after{
  content: "";
  position: absolute;
  left: 50%;
  bottom: -26px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--navy);
  border-bottom: 2px solid var(--navy);
  transform: translateX(-50%) rotate(45deg);
}
.flow-cap{
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--muted);
  font-family: var(--mono);
}

/* ---------- sample audit ---------- */
.sample-head{ display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 14px; }
.sample-label{
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--high);
  background: var(--high-soft);
  border: 1px solid #edd9b0;
  padding: 4px 9px;
  border-radius: 3px;
}
.report{
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper);
  overflow: hidden;
}
.report-head{
  background: var(--alt);
  border-bottom: 1px solid var(--line);
  padding: 13px 18px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 12px;
}
.report-title{ font-weight: 650; font-size: 0.95rem; }
.report-sub{ font-family: var(--mono); font-size: 0.76rem; color: var(--muted); }

.finding{ padding: 20px 18px; border-bottom: 1px solid var(--line-soft); }
.finding:last-child{ border-bottom: 0; }
.finding-head{ display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 14px; }
.sev{
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  flex: none;
}
.sev-crit{ background: var(--crit-soft); color: var(--crit); }
.sev-high{ background: var(--high-soft); color: var(--high); }
.sev-med { background: var(--med-soft);  color: var(--med);  }

.finding-body{
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}
.finding-body dt{
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 10px;
}
.finding-body dt:first-child{ margin-top: 0; }
.finding-body dd{
  margin: 0;
  font-size: 0.94rem;
  color: var(--ink-2);
}

/* ---------- steps ---------- */
.steps{
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
.step{ display: flex; gap: 15px; align-items: flex-start; }
.step-n{
  flex: none;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--navy);
  color: var(--navy);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
}
.step p{ margin-top: 6px; font-size: 0.94rem; color: var(--ink-2); max-width: 58ch; }

/* ---------- scope ---------- */
.scope{ margin-top: 26px; display: grid; gap: 18px; }
.scope-col{
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 18px;
  background: var(--paper);
}
.scope-is{ border-left: 3px solid var(--ok); }
.scope-isnt{ border-left: 3px solid var(--crit); }
.scope-col h3{ margin-bottom: 12px; }
.scope-col ul{ margin: 0; padding-left: 18px; display: grid; gap: 7px; font-size: 0.94rem; color: var(--ink-2); }
.scope-col li::marker{ color: var(--muted); }

/* ---------- faq ---------- */
.faq{
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: 5px;
  overflow: hidden;
  background: var(--paper);
}
.faq details{ border-bottom: 1px solid var(--line-soft); }
.faq details:last-child{ border-bottom: 0; }
.faq summary{
  cursor: pointer;
  padding: 15px 18px;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.faq summary::-webkit-details-marker{ display: none; }
.faq summary::after{
  content: "+";
  font-family: var(--mono);
  font-size: 1.1rem;
  color: var(--navy);
  flex: none;
  line-height: 1;
}
.faq details[open] summary::after{ content: "\2212"; }
.faq details p{
  padding: 0 18px 17px;
  font-size: 0.94rem;
  color: var(--ink-2);
  max-width: 64ch;
}

/* ---------- order ---------- */
.order{ background: var(--navy); padding-block: 48px; }
.order-card{
  background: var(--paper);
  border-radius: 6px;
  padding: 28px 22px 26px;
  border: 1px solid var(--navy-deep);
}
.order-lede{ margin-top: 14px; color: var(--ink-2); max-width: 54ch; }
.order .btn-lg{ margin-top: 24px; }
.order .btn-disabled{ margin-top: 10px; }
.pay-note{ margin-top: 10px; font-size: 0.84rem; color: var(--muted); }
.facts-dark{
  margin-top: 24px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  grid-template-columns: 1fr;
  gap: 9px;
}

/* ---------- footer ---------- */
.site-foot{ background: var(--alt); padding-block: 34px 40px; }
.foot-top{ display: grid; gap: 18px; }
.foot-name{ font-weight: 650; }
.site-foot address{ font-style: normal; margin-top: 6px; font-size: 0.92rem; color: var(--ink-2); }
.foot-service{ font-size: 0.92rem; color: var(--muted); }
.disclaimer{
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--ink-2);
  max-width: 70ch;
}
.copyright{ margin-top: 12px; font-size: 0.8rem; color: var(--muted); max-width: 70ch; }

/* ============================================================
   Responsive
   ============================================================ */
@media (min-width: 560px){
  .btn-lg{ width: auto; }
  .hero-cta{ flex-direction: row; align-items: center; gap: 20px; flex-wrap: wrap; }
  .facts{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts-dark{ grid-template-columns: 1fr; }
  .finding-body{ grid-template-columns: 134px 1fr; gap: 9px 16px; align-items: baseline; }
  .finding-body dt{ margin-top: 0; }
}

@media (min-width: 760px){
  body{ font-size: 17px; }
  h1{ font-size: 2.6rem; }
  h2{ font-size: 1.8rem; }
  .hero{ padding-block: 72px 62px; }
  .band{ padding-block: 64px; }
  .order{ padding-block: 68px; }
  .lede{ font-size: 1.15rem; }
  .check-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow{ grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
  .flow-step:not(:last-child)::after{
    left: auto; right: -20px; bottom: auto; top: 50%;
    transform: translateY(-50%) rotate(-45deg);
  }
  .scope{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps{ gap: 24px; }
  .foot-top{ grid-template-columns: 1fr auto; align-items: start; }
  .foot-service{ text-align: right; }
  .order-card{ padding: 38px 34px 34px; }
}

@media (min-width: 1000px){
  .check-grid{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .facts{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .facts-dark{ grid-template-columns: 1fr; }
  .hero h1{ font-size: 2.85rem; }
}

@media print{
  .site-head, .order .btn, .btn-disabled{ display: none; }
  body{ font-size: 12pt; }
}