/* ==========================================================================
   Redfield USA — Independent Optics Guide
   Design direction: "Low-light glass" — dawn-shadow slate, anodized aluminum,
   illuminated-reticle amber. Signature element: the reticle.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root{
  --void:#0E1216;
  --slate:#151B21;
  --gunmetal:#1E262E;
  --gunmetal-2:#2A343E;
  --alu:#8A97A1;
  --alu-light:#DDE3E7;
  --alu-mid:#C4CDD4;
  --frost:#E9EFF3;
  --ember:#E0A22B;
  --ember-dim:#8A6416;
  --oxide:#B33A2B;
  --good:#5E8C61;

  --display:"Saira Condensed","Arial Narrow",Impact,sans-serif;
  --body:"Archivo","Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --maxw:1220px;
  --gut:clamp(18px,4vw,40px);
  --r:3px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  background:var(--void);
  color:var(--frost);
  font-family:var(--body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ember);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
:focus-visible{outline:2px solid var(--ember);outline-offset:3px}

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:700;
  line-height:1.05;
  letter-spacing:.01em;
  margin:0 0 .5em;
  text-transform:uppercase;
}
h1{font-size:clamp(38px,6.2vw,74px)}
h2{font-size:clamp(28px,3.8vw,44px)}
h3{font-size:clamp(20px,2.2vw,25px)}
h4{font-size:18px;letter-spacing:.04em}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.2em;padding-left:1.15em}
li{margin-bottom:.5em}
strong{font-weight:600;color:#fff}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:clamp(52px,7vw,92px)}
.section--tight{padding-block:clamp(36px,5vw,60px)}
.band-light{background:var(--alu-light);color:#131A20}
.band-light h1,.band-light h2,.band-light h3,.band-light h4{color:#0E1216}
.band-light strong{color:#000}
.band-light a{color:#8A4A0F}
.band-slate{background:var(--slate)}
.grid{display:grid;gap:clamp(16px,2vw,24px)}
.g-2{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.g-3{grid-template-columns:repeat(auto-fit,minmax(255px,1fr))}
.g-4{grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}
.split{display:grid;gap:clamp(24px,4vw,52px);grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:start}
@media(max-width:860px){.split{grid-template-columns:1fr}}
.lede{font-size:clamp(18px,2vw,21px);color:var(--alu);max-width:62ch}
.band-light .lede{color:#3D4750}
.muted{color:var(--alu)}
.band-light .muted{color:#4A555E}
.narrow{max-width:74ch}

/* ---------- Eyebrow / tick rule (signature: turret markings) ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--ember);
  display:flex;align-items:center;gap:10px;
  margin:0 0 14px;
}
.eyebrow::after{
  content:"";flex:1;height:7px;
  background-image:repeating-linear-gradient(90deg,currentColor 0 1px,transparent 1px 9px);
  opacity:.35;
}
.band-light .eyebrow{color:#8A4A0F}

.tickrule{
  height:12px;
  background-image:
    repeating-linear-gradient(90deg,var(--gunmetal-2) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(90deg,rgba(138,151,161,.28) 0 1px,transparent 1px 11px);
  background-size:100% 12px,100% 6px;
  background-repeat:no-repeat;
  background-position:0 0,0 3px;
  border-bottom:1px solid var(--gunmetal-2);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,18,22,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--gunmetal-2);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:13px}

/* Text-only logo — no image assets */
.logo{display:flex;align-items:center;gap:11px;color:var(--frost);text-decoration:none}
.logo:hover{text-decoration:none}
.logo__mark{
  width:34px;height:34px;flex:none;
  border:2px solid var(--oxide);
  display:grid;place-items:center;
  font-family:var(--display);font-weight:700;font-size:21px;line-height:1;
  color:var(--oxide);
  position:relative;
}
.logo__mark::before,.logo__mark::after{
  content:"";position:absolute;background:var(--oxide);
}
.logo__mark::before{left:-5px;right:-5px;height:1px;top:50%}
.logo__mark::after{top:-5px;bottom:-5px;width:1px;left:50%}
.logo__mark span{position:relative;z-index:1;background:var(--void);padding:0 3px}
.logo__text{display:flex;flex-direction:column;line-height:1}
.logo__word{font-family:var(--display);font-weight:700;font-size:23px;letter-spacing:.08em;text-transform:uppercase}
.logo__word em{font-style:normal;color:var(--oxide)}
.logo__sub{font-family:var(--mono);font-size:9px;letter-spacing:.19em;color:var(--alu);text-transform:uppercase;margin-top:4px}

.nav__links{display:flex;align-items:center;gap:4px}
.nav__links a{
  font-family:var(--display);font-weight:500;font-size:16px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--frost);padding:9px 12px;border-radius:var(--r);
}
.nav__links a:hover{background:var(--gunmetal);text-decoration:none;color:var(--ember)}
.nav__links a[aria-current="page"]{color:var(--ember);box-shadow:inset 0 -2px 0 var(--ember)}
.nav__toggle{display:none;background:none;border:1px solid var(--gunmetal-2);color:var(--frost);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;padding:9px 13px;border-radius:var(--r);cursor:pointer}
@media(max-width:1000px){
  .nav__toggle{display:block}
  .nav__links{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--slate);border-bottom:1px solid var(--gunmetal-2);padding:8px var(--gut) 18px;
  }
  .nav__links.is-open{display:flex}
  .nav__links a{padding:13px 4px;border-bottom:1px solid var(--gunmetal)}
  .nav .btn{width:100%;text-align:center;margin-top:12px}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  font-family:var(--display);font-weight:600;font-size:16px;letter-spacing:.08em;text-transform:uppercase;
  padding:13px 24px;border-radius:var(--r);border:2px solid var(--ember);
  background:var(--ember);color:#12181D;text-decoration:none;cursor:pointer;
  transition:background .16s ease,color .16s ease,transform .16s ease;
}
.btn:hover{background:#F0B849;border-color:#F0B849;text-decoration:none;transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--ember)}
.btn--ghost:hover{background:var(--ember);color:#12181D}
.btn--sm{font-size:14px;padding:10px 18px}
.btn--block{display:block;width:100%;text-align:center}
.band-light .btn{color:#12181D}
.band-light .btn--ghost{color:#7A5410;border-color:#7A5410}
.band-light .btn--ghost:hover{background:#7A5410;color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--gunmetal-2)}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 460px at 78% 18%,rgba(224,162,43,.10),transparent 62%),
             radial-gradient(700px 500px at 8% 90%,rgba(179,58,43,.09),transparent 60%);
  pointer-events:none;
}
.hero__inner{position:relative;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:clamp(28px,5vw,60px);align-items:center;padding-block:clamp(48px,7vw,86px)}
@media(max-width:900px){.hero__inner{grid-template-columns:1fr}}
.hero h1{margin-bottom:20px}
.hero h1 .accent{color:var(--ember);display:block}

/* Signature: the sight picture */
.sightbox{position:relative;aspect-ratio:1;max-width:430px;margin-inline:auto;width:100%}
.sightbox svg{width:100%;height:100%;display:block}
.sight-ring{fill:#0A0E12;stroke:var(--gunmetal-2);stroke-width:2}
.sight-glass{fill:url(#glassgrad)}
.sight-line{stroke:var(--frost);stroke-width:2.2;opacity:.9}
.sight-line--thick{stroke-width:7}
.sight-hash{stroke:var(--frost);stroke-width:1.6;opacity:.68}
.sight-dot{fill:var(--ember)}
.sight-label{font-family:var(--mono);font-size:9px;fill:var(--alu);letter-spacing:.12em}
@media(prefers-reduced-motion:no-preference){
  .sight-anim{stroke-dasharray:150;stroke-dashoffset:150;animation:draw 1.1s .2s ease-out forwards}
  .sight-dot{animation:pulse 2.6s 1.4s ease-in-out infinite}
}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}

/* ---------- Disclosure bar ---------- */
.disclosure{
  background:var(--gunmetal);
  border-block:1px solid var(--gunmetal-2);
  border-left:4px solid var(--ember);
}
.disclosure p{
  margin:0;padding-block:15px;
  font-family:var(--mono);font-size:12.5px;line-height:1.75;color:var(--alu-mid);letter-spacing:.02em;
}
.disclosure strong{color:var(--ember);font-weight:500}

/* ---------- Cards ---------- */
.card{
  background:var(--gunmetal);
  border:1px solid var(--gunmetal-2);
  border-radius:var(--r);
  padding:clamp(20px,2.4vw,28px);
  position:relative;
  transition:border-color .18s ease,transform .18s ease;
  display:flex;flex-direction:column;
}
.card:hover{border-color:var(--ember-dim);transform:translateY(-2px)}
.card::after{
  content:"";position:absolute;top:9px;right:9px;width:13px;height:13px;
  border-top:1px solid var(--ember);border-right:1px solid var(--ember);
  opacity:0;transition:opacity .18s ease;
}
.card:hover::after{opacity:.8}
.card h3{margin-bottom:9px}
.card p{color:var(--alu);font-size:16px}
.card ul{color:var(--alu);font-size:15.5px}
.card .btn{margin-top:auto}
.card__spec{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ember);margin-bottom:12px;display:block;
}
.band-light .card{background:#fff;border-color:#B9C4CC;color:#1B242B}
.band-light .card:hover{border-color:#8A4A0F}
.band-light .card p,.band-light .card ul{color:#4A555E}
.band-light .card__spec{color:#8A4A0F}
.band-light .card::after{border-color:#8A4A0F}

/* ---------- Spec table ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--gunmetal-2);border-radius:var(--r);margin-bottom:1.4em}
table{width:100%;border-collapse:collapse;font-size:15.5px;min-width:540px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--gunmetal-2);vertical-align:top}
thead th{
  background:var(--gunmetal-2);
  font-family:var(--mono);font-size:11px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--ember);font-weight:500;white-space:nowrap;
}
tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
tbody tr:last-child td{border-bottom:0}
td:first-child{font-weight:600;color:#fff}
.band-light .tablewrap{border-color:#B9C4CC;background:#fff}
.band-light thead th{background:#2A343E;color:var(--ember)}
.band-light td{border-color:#CFD8DE}
.band-light td:first-child{color:#0E1216}
.band-light tbody tr:nth-child(even){background:#F2F5F7}

/* ---------- Callouts ---------- */
.note{
  border-left:4px solid var(--ember);
  background:var(--gunmetal);
  padding:17px 21px;border-radius:0 var(--r) var(--r) 0;margin-bottom:1.4em;
}
.note p:last-child{margin-bottom:0}
.note--warn{border-left-color:var(--oxide)}
.note__title{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ember);display:block;margin-bottom:7px;
}
.note--warn .note__title{color:#E06A57}
.band-light .note{background:#fff;border:1px solid #B9C4CC;border-left:4px solid #8A4A0F}
.band-light .note__title{color:#8A4A0F}

/* ---------- FAQ ---------- */
.faq details{border-bottom:1px solid var(--gunmetal-2);padding:4px 0}
.faq summary{
  cursor:pointer;list-style:none;padding:17px 34px 17px 0;position:relative;
  font-family:var(--display);font-size:19px;font-weight:600;letter-spacing:.03em;text-transform:uppercase;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);
  color:var(--ember);font-family:var(--mono);font-size:22px;line-height:1;
}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{color:var(--ember)}
.faq__body{padding:0 0 18px;color:var(--alu);max-width:78ch}
.faq__body p:last-child{margin-bottom:0}
.band-light .faq details{border-color:#C0CAD1}
.band-light .faq__body{color:#414C55}

/* ---------- Steps (real sequences only) ---------- */
.steps{list-style:none;padding:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding-left:56px;margin-bottom:22px}
.steps li::before{
  content:counter(s,decimal-leading-zero);position:absolute;left:0;top:-2px;
  font-family:var(--mono);font-size:15px;color:var(--ember);
  border:1px solid var(--ember-dim);padding:4px 8px;border-radius:var(--r);
}
.steps h4{margin-bottom:5px}

/* ---------- Footer ---------- */
.site-footer{background:#0A0E12;border-top:1px solid var(--gunmetal-2);margin-top:0}
.footer__grid{display:grid;gap:32px;grid-template-columns:1.5fr 1fr 1fr 1fr;padding-block:clamp(40px,5vw,60px)}
@media(max-width:840px){.footer__grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer__grid{grid-template-columns:1fr}}
.footer__grid h4{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--ember);
  text-transform:uppercase;font-weight:500;margin-bottom:14px}
.footer__grid ul{list-style:none;padding:0;margin:0}
.footer__grid li{margin-bottom:9px}
.footer__grid a{color:var(--alu);font-size:15px}
.footer__grid a:hover{color:var(--frost)}
.footer__grid p{color:var(--alu);font-size:15px}

.declaration{
  border-top:1px solid var(--gunmetal-2);
  border-left:4px solid var(--oxide);
  background:rgba(179,58,43,.06);
  padding:24px 26px;margin-block:8px 30px;border-radius:0 var(--r) var(--r) 0;
}
.declaration h4{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:#E08A78;
  text-transform:uppercase;margin-bottom:12px;font-weight:500;
}
.declaration p{font-size:13.5px;line-height:1.8;color:var(--alu);margin-bottom:10px;max-width:110ch}
.declaration p:last-child{margin-bottom:0}
.declaration strong{color:var(--frost);font-weight:600}

.footer__base{
  border-top:1px solid var(--gunmetal-2);padding-block:22px;
  display:flex;flex-wrap:wrap;gap:14px 26px;justify-content:space-between;align-items:center;
}
.footer__base p,.footer__base a{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--alu);margin:0}
.footer__base nav{display:flex;flex-wrap:wrap;gap:18px}

/* ---------- Sticky offer bar (replaces the interstitial popup) ---------- */
.offerbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:var(--gunmetal);border-top:2px solid var(--ember);
  transform:translateY(110%);transition:transform .32s ease;
}
.offerbar.is-visible{transform:translateY(0)}
.offerbar__inner{display:flex;align-items:center;gap:18px;padding-block:13px;flex-wrap:wrap}
.offerbar__text{flex:1 1 260px;min-width:0}
.offerbar__text strong{display:block;font-family:var(--display);font-size:19px;letter-spacing:.04em;
  text-transform:uppercase;color:var(--frost);line-height:1.2}
.offerbar__text span{font-family:var(--mono);font-size:11px;color:var(--alu);letter-spacing:.05em}
.offerbar__close{
  background:none;border:1px solid var(--gunmetal-2);color:var(--alu);
  width:34px;height:34px;border-radius:var(--r);font-size:19px;line-height:1;cursor:pointer;flex:none;
}
.offerbar__close:hover{color:var(--frost);border-color:var(--alu)}

/* ---------- Page head ---------- */
.pagehead{border-bottom:1px solid var(--gunmetal-2);background:var(--slate);position:relative;overflow:hidden}
.pagehead::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 80% 0%,rgba(224,162,43,.09),transparent 65%);
}
.pagehead .wrap{position:relative;padding-block:clamp(38px,5.5vw,66px)}
.pagehead h1{margin-bottom:16px;max-width:20ch}
.crumbs{font-family:var(--mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--alu);margin-bottom:16px}
.crumbs a{color:var(--alu)}
.crumbs a:hover{color:var(--ember)}

/* ---------- Misc ---------- */
.checklist{list-style:none;padding:0}
.checklist li{padding-left:28px;position:relative}
.checklist li::before{
  content:"";position:absolute;left:2px;top:.62em;width:9px;height:9px;
  border:1px solid var(--ember);border-radius:1px;
}
.band-light .checklist li::before{border-color:#8A4A0F}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.5em;color:var(--ember)}
.band-light .prose h3{color:#8A4A0F}
.prose > p:first-of-type{font-size:19px;color:var(--alu)}
.band-light .prose > p:first-of-type{color:#3D4750}
.stat-row{display:flex;flex-wrap:wrap;gap:26px 40px;margin-top:26px;padding-top:24px;border-top:1px solid var(--gunmetal-2)}
.stat{min-width:120px}
.stat b{display:block;font-family:var(--display);font-size:30px;font-weight:700;color:var(--ember);line-height:1}
.stat span{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--alu)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:200;background:var(--ember);color:#000;padding:10px 16px;border-radius:var(--r)}

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