/* ============ CRYPTOBRIDGES design system ============
   Palette — server-room steel + refined bitcoin amber
   ink      #0E1116  page ground (gunmetal, not black)
   steel    #161B22  raised surface
   plate    #1D242E  cards / rating plates
   seam     #2A333F  hairlines
   silver   #C8CFD8  primary text (heatsink aluminum)
   dim      #7D8794  secondary text
   amber    #E8842C  accent — burnt bitcoin amber
   amber-hi #FFB25E  accent highlight
   copper   #9A6B4F  detail only
   ok       #46C078  paid / in-stock
*/
:root {
  --ink: #0E1116; --steel: #161B22; --plate: #1D242E; --seam: #2A333F;
  --silver: #C8CFD8; --dim: #7D8794; --amber: #E8842C; --amber-hi: #FFB25E;
  --copper: #9A6B4F; --ok: #46C078; --bad: #E05A4E;
  --display: 'Chakra Petch', sans-serif;
  --body: 'IBM Plex Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --maxw: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
body {
  background: var(--ink); color: var(--silver);
  font-family: var(--body); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.topbar {
  background: var(--steel); border-bottom: 1px solid var(--seam);
  font-family: var(--mono); font-size: 12px; color: var(--dim);
}
.topbar .wrap { display: flex; justify-content: space-between; padding-top: 7px; padding-bottom: 7px; gap: 16px; }
.topbar span b { color: var(--amber); font-weight: 500; }
.tick { white-space: nowrap; overflow: hidden; }

header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14,17,22,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--seam);
}
header.site .wrap { display: flex; align-items: center; gap: 32px; padding-top: 16px; padding-bottom: 16px; }
.logo { font-family: var(--display); font-weight: 700; font-size: 22px; letter-spacing: .04em; color: var(--silver); }
.logo b { color: var(--amber); }
.logo .lg-mark { display: inline-block; transform: translateY(2px); margin-right: 8px; }
nav.main { display: flex; gap: 24px; font-size: 14px; color: var(--dim); flex: 1; }
nav.main a:hover { color: var(--silver); }
nav.main a.on { color: var(--amber); }
.cart-btn {
  font-family: var(--mono); font-size: 13px; color: var(--silver);
  background: var(--plate); border: 1px solid var(--seam); border-radius: 4px;
  padding: 8px 14px; position: relative;
}
.cart-btn:hover { border-color: var(--amber); }
.cart-btn .n { color: var(--amber); }

/* ---------- hero ---------- */
.hero { padding: 72px 0 64px; position: relative; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(700px 340px at 78% 30%, rgba(232,132,44,.09), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(200,207,216,.025) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(200,207,216,.025) 39px 40px);
  pointer-events: none;
}
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; position: relative; }
.hero .eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .18em;
  color: var(--amber); text-transform: uppercase; margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--display); font-size: clamp(38px, 5.4vw, 62px);
  line-height: 1.04; font-weight: 700; color: #E9EDF2; letter-spacing: .01em;
}
.hero h1 em { font-style: normal; color: var(--amber); }
.hero p.sub { color: var(--dim); font-size: 17px; margin: 22px 0 30px; max-width: 46ch; }
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; font-family: var(--display); font-weight: 600;
  font-size: 15px; letter-spacing: .05em; border-radius: 4px;
  padding: 13px 26px; border: 1px solid transparent; transition: all .15s;
}
.btn-amber { background: var(--amber); color: #14100B; }
.btn-amber:hover { background: var(--amber-hi); }
.btn-ghost { border-color: var(--seam); color: var(--silver); }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); }

/* hero terminal — the live panel */
.term {
  background: var(--steel); border: 1px solid var(--seam); border-radius: 6px;
  font-family: var(--mono); font-size: 13px; overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
}
.term-head {
  display: flex; align-items: center; gap: 8px;
  background: var(--plate); border-bottom: 1px solid var(--seam);
  padding: 10px 14px; color: var(--dim); font-size: 11px; letter-spacing: .12em;
}
.term-head .led { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); animation: pulse 2.2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.term-body { padding: 18px 20px; }
.term-row { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px dashed rgba(42,51,63,.7); }
.term-row:last-child { border-bottom: 0; }
.term-row .k { color: var(--dim); }
.term-row .v { color: var(--silver); }
.term-row .v.hot { color: var(--amber-hi); }
.term-row .v.ok { color: var(--ok); }

/* ---------- trust strip ---------- */
.trust { border-top: 1px solid var(--seam); border-bottom: 1px solid var(--seam); background: var(--steel); }
.trust .wrap { display: flex; gap: 12px; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; }
.trust span { font-family: var(--mono); font-size: 12.5px; color: var(--dim); letter-spacing: .04em; }
.trust span b { color: var(--silver); font-weight: 500; }
.trust .dot { color: var(--amber); margin-right: 8px; }

/* ---------- sections ---------- */
section.block { padding: 64px 0; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 30px; gap: 16px; flex-wrap: wrap; }
.sec-head h2 { font-family: var(--display); font-size: 26px; font-weight: 600; color: #E9EDF2; letter-spacing: .02em; }
.sec-head .all { font-family: var(--mono); font-size: 13px; color: var(--amber); }
.sec-head .all:hover { color: var(--amber-hi); }

/* category tiles — machine bays */
.cats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-tile {
  background: var(--plate); border: 1px solid var(--seam); border-radius: 6px;
  padding: 26px 22px 22px; position: relative; overflow: hidden;
  transition: border-color .15s, transform .15s;
}
.cat-tile:hover { border-color: var(--amber); transform: translateY(-3px); }
.cat-tile::after {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--amber), transparent 70%);
  opacity: 0; transition: opacity .15s;
}
.cat-tile:hover::after { opacity: 1; }
.cat-tile h3 { font-family: var(--display); font-size: 18px; color: var(--silver); margin-bottom: 6px; }
.cat-tile p { font-size: 13px; color: var(--dim); margin-bottom: 14px; min-height: 40px; }
.cat-tile .ct { font-family: var(--mono); font-size: 12px; color: var(--amber); }

/* ---------- product grid + cards ---------- */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card {
  background: var(--plate); border: 1px solid var(--seam); border-radius: 6px;
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: rgba(232,132,44,.6); transform: translateY(-3px); }
.card .ph { background: #E9EBEE; aspect-ratio: 1; display: grid; place-items: center; padding: 14px; }
.card .ph img { max-height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.card .bd { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card .brand { font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; color: var(--dim); text-transform: uppercase; }
.card h3 { font-size: 14.5px; font-weight: 500; color: var(--silver); line-height: 1.35; flex: 1; }
.card .price-row { display: flex; align-items: baseline; gap: 10px; font-family: var(--mono); }
.card .price { color: var(--amber-hi); font-size: 17px; font-weight: 500; }
.card .was { color: var(--dim); font-size: 12.5px; text-decoration: line-through; }
.card .aed { font-family: var(--mono); font-size: 11px; color: var(--dim); }

/* the signature: industrial rating plate */
.plate-spec {
  background: var(--steel); border: 1px solid var(--seam); border-radius: 3px;
  font-family: var(--mono); font-size: 11px; color: var(--dim);
  display: flex; padding: 6px 8px; gap: 0; position: relative;
}
.plate-spec::before, .plate-spec::after {
  content: ''; position: absolute; top: 50%; width: 5px; height: 5px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #4A5566, #232A34); transform: translateY(-50%);
}
.plate-spec::before { left: 3px; } .plate-spec::after { right: 3px; }
.plate-spec span { flex: 1; text-align: center; padding: 0 6px; border-right: 1px solid var(--seam); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.plate-spec span:last-child { border-right: 0; }
.plate-spec b { display: block; color: var(--silver); font-weight: 500; font-size: 12px; }

.stock { font-family: var(--mono); font-size: 11px; }
.stock.in { color: var(--ok); } .stock.out { color: var(--bad); }

/* ---------- product page ---------- */
.pdp { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; padding: 48px 0 64px; }
.pdp .gallery .main { background: #E9EBEE; border-radius: 6px; aspect-ratio: 1; display: grid; place-items: center; padding: 28px; }
.pdp .gallery .main img { max-height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.pdp .thumbs { display: flex; gap: 10px; margin-top: 12px; }
.pdp .thumbs button { background: #E9EBEE; border: 2px solid transparent; border-radius: 4px; width: 72px; height: 72px; padding: 6px; }
.pdp .thumbs button.on { border-color: var(--amber); }
.pdp .thumbs img { height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.pdp .brand { font-family: var(--mono); font-size: 12px; letter-spacing: .16em; color: var(--amber); text-transform: uppercase; margin-bottom: 10px; }
.pdp h1 { font-family: var(--display); font-size: 30px; font-weight: 600; color: #E9EDF2; line-height: 1.15; margin-bottom: 18px; }
.pdp .price-row { display: flex; align-items: baseline; gap: 14px; font-family: var(--mono); margin-bottom: 4px; }
.pdp .price { font-size: 30px; color: var(--amber-hi); font-weight: 500; }
.pdp .was { font-size: 16px; color: var(--dim); text-decoration: line-through; }
.pdp .save { font-size: 12px; color: var(--ok); border: 1px solid rgba(70,192,120,.4); border-radius: 3px; padding: 2px 8px; }
.pdp .aed { font-family: var(--mono); font-size: 13px; color: var(--dim); margin-bottom: 20px; }
.pdp .plate-spec { font-size: 12.5px; padding: 10px 12px; margin: 20px 0; }
.pdp .plate-spec b { font-size: 14px; }
.pdp .desc { color: var(--dim); font-size: 15px; margin: 20px 0 26px; max-height: 320px; overflow: auto; }
.pdp .desc h1, .pdp .desc h2, .pdp .desc h3 { font-size: 15px; color: var(--silver); margin: 14px 0 6px; }
.pdp .desc p, .pdp .desc li { margin-bottom: 8px; }
.pdp .desc table { border-collapse: collapse; font-size: 13px; }
.pdp .desc td, .pdp .desc th { border: 1px solid var(--seam); padding: 5px 9px; }
.qty-row { display: flex; gap: 12px; margin-bottom: 22px; }
.qty-row select {
  background: var(--plate); color: var(--silver); border: 1px solid var(--seam);
  border-radius: 4px; padding: 12px; font-family: var(--mono);
}
.pay-note { font-family: var(--mono); font-size: 12px; color: var(--dim); margin-top: 14px; }
.pay-note b { color: var(--silver); }

/* ---------- cart / checkout ---------- */
.page-title { font-family: var(--display); font-size: 30px; color: #E9EDF2; padding: 44px 0 26px; }
.cart-line {
  display: grid; grid-template-columns: 84px 1fr auto auto auto; gap: 18px; align-items: center;
  background: var(--plate); border: 1px solid var(--seam); border-radius: 6px;
  padding: 14px 18px; margin-bottom: 12px;
}
.cart-line .ph { background: #E9EBEE; border-radius: 4px; width: 84px; height: 84px; display: grid; place-items: center; padding: 8px; }
.cart-line .ph img { max-height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.cart-line .nm { font-size: 14.5px; }
.cart-line .nm .b { font-family: var(--mono); font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: .1em; }
.cart-line .pr { font-family: var(--mono); color: var(--amber-hi); }
.cart-line select { background: var(--steel); color: var(--silver); border: 1px solid var(--seam); border-radius: 4px; padding: 7px; font-family: var(--mono); }
.cart-line .rm { background: none; border: 0; color: var(--dim); font-size: 18px; }
.cart-line .rm:hover { color: var(--bad); }
.summary {
  background: var(--plate); border: 1px solid var(--seam); border-radius: 6px;
  padding: 22px; font-family: var(--mono); font-size: 14px;
}
.summary .row { display: flex; justify-content: space-between; padding: 7px 0; color: var(--dim); }
.summary .row.total { color: var(--silver); font-size: 18px; border-top: 1px solid var(--seam); margin-top: 8px; padding-top: 14px; }
.summary .row.total .v { color: var(--amber-hi); }
.cols-2 { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: start; padding-bottom: 64px; }

.field { margin-bottom: 14px; }
.field label { display: block; font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em; color: var(--dim); text-transform: uppercase; margin-bottom: 6px; }
.field input, .field select {
  width: 100%; background: var(--steel); color: var(--silver);
  border: 1px solid var(--seam); border-radius: 4px; padding: 12px 14px; font: inherit;
}
.field input:focus, .field select:focus { border-color: var(--amber); outline: none; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* payment modal */
.modal-back { position: fixed; inset: 0; background: rgba(8,10,13,.8); z-index: 100; display: grid; place-items: center; padding: 20px; }
.modal {
  background: var(--steel); border: 1px solid var(--seam); border-radius: 8px;
  max-width: 520px; width: 100%; max-height: 88vh; overflow: auto; padding: 26px;
}
.modal h3 { font-family: var(--display); font-size: 20px; color: #E9EDF2; margin-bottom: 4px; }
.modal .sub { font-family: var(--mono); font-size: 12.5px; color: var(--dim); margin-bottom: 18px; }
.pay-opt {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  background: var(--plate); border: 1px solid var(--seam); border-radius: 6px;
  padding: 14px 16px; margin-bottom: 10px; width: 100%; text-align: left; color: var(--silver);
  transition: border-color .12s;
}
.pay-opt:hover { border-color: var(--amber); }
.pay-opt .nm { font-weight: 500; font-size: 14.5px; }
.pay-opt .note { font-size: 12px; color: var(--dim); }
.pay-opt .go { font-family: var(--mono); color: var(--amber); font-size: 13px; white-space: nowrap; }
.pay-sec { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--dim); text-transform: uppercase; margin: 18px 0 10px; }
.wallet-line { font-family: var(--mono); font-size: 12px; background: var(--plate); border: 1px solid var(--seam); border-radius: 4px; padding: 10px 12px; margin-bottom: 8px; word-break: break-all; color: var(--silver); }
.wallet-line b { color: var(--amber); margin-right: 8px; }

/* ---------- footer ---------- */
footer.site { border-top: 1px solid var(--seam); background: var(--steel); margin-top: 40px; }
footer.site .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-top: 48px; padding-bottom: 40px; }
footer.site h4 { font-family: var(--mono); font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); margin-bottom: 14px; }
footer.site a { display: block; font-size: 13.5px; color: var(--dim); padding: 4px 0; }
footer.site a:hover { color: var(--silver); }
footer.site .about { font-size: 13px; color: var(--dim); max-width: 34ch; }
.foot-bottom { border-top: 1px solid var(--seam); }
.foot-bottom .wrap { display: flex; justify-content: space-between; padding-top: 16px; padding-bottom: 16px; font-family: var(--mono); font-size: 11.5px; color: var(--dim); flex-wrap: wrap; gap: 8px; }

/* ---------- reviews ---------- */
.rev { background: var(--plate); border: 1px solid var(--seam); border-radius: 6px; padding: 18px 20px; }
.rev .stars { color: var(--amber); font-size: 13px; letter-spacing: 2px; }
.rev p { font-size: 13.5px; color: var(--dim); margin: 10px 0; }
.rev .who { font-family: var(--mono); font-size: 11.5px; color: var(--silver); }
.rev .who span { color: var(--dim); }
.revs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

/* ---------- success page ---------- */
.success-box { max-width: 560px; margin: 64px auto; text-align: center; padding: 0 24px 64px; }
.success-box .term { text-align: left; margin-top: 28px; }
.success-box h1 { font-family: var(--display); font-size: 30px; color: #E9EDF2; margin-bottom: 10px; }
.success-box p { color: var(--dim); }

/* ---------- reveal on scroll ---------- */
.rv { opacity: 0; transform: translateY(14px); transition: opacity .5s, transform .5s; }
.rv.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 36px; }
  .cats, .grid { grid-template-columns: repeat(2, 1fr); }
  .pdp { grid-template-columns: 1fr; }
  .cols-2 { grid-template-columns: 1fr; }
  footer.site .wrap { grid-template-columns: 1fr 1fr; }
  .revs { grid-template-columns: 1fr; }
  nav.main { display: none; }
}
@media (max-width: 560px) {
  .cats, .grid { grid-template-columns: 1fr; }
  .cart-line { grid-template-columns: 64px 1fr; }
  .cart-line .pr, .cart-line select, .cart-line .rm { grid-column: 2; justify-self: start; }
}

/* ---------- CRO additions ---------- */
.stars { color: var(--amber); font-size: 13px; letter-spacing: 1px; white-space: nowrap; }
.stars.sm { font-size: 11.5px; }
.stars i { font-style: normal; font-family: var(--mono); font-size: 11px; color: var(--dim); }
.cutoff {
  font-family: var(--mono); font-size: 12.5px; color: var(--amber-hi);
  background: rgba(232,132,44,.08); border: 1px solid rgba(232,132,44,.3);
  border-radius: 4px; padding: 9px 12px; margin-top: 12px; display: inline-block;
}
.cutoff b { color: #fff; }
.fbt { background: var(--plate); border: 1px solid var(--seam); border-radius: 6px; padding: 16px; margin: 20px 0; }
.fbt-item { display: flex; align-items: center; gap: 12px; padding: 8px 6px; border-bottom: 1px dashed var(--seam); }
.fbt-item:last-of-type { border-bottom: 0; }
.fbt-item img { width: 44px; height: 44px; object-fit: contain; background: #E9EBEE; border-radius: 4px; padding: 3px; }
.fbt-nm { flex: 1; font-size: 13px; color: var(--silver); }
.fbt-pr { font-family: var(--mono); font-size: 13px; color: var(--amber-hi); }
.sticky-atc {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: none; align-items: center; justify-content: space-between; gap: 14px;
  background: rgba(14,17,22,.97); border-top: 1px solid var(--seam); padding: 12px 18px;
  font-family: var(--mono);
}
.sticky-atc s { color: var(--dim); font-size: 12px; }
.sticky-atc b { color: var(--amber-hi); font-size: 17px; }
@media (max-width: 960px) { .sticky-atc { display: flex; } body[data-page="product"] { padding-bottom: 74px; } }
.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.how .step { background: var(--plate); border: 1px solid var(--seam); border-radius: 6px; padding: 22px; }
.how .step .n { font-family: var(--mono); font-size: 11px; color: var(--amber); letter-spacing: .16em; }
.how .step h3 { font-family: var(--display); font-size: 16px; color: var(--silver); margin: 8px 0 6px; }
.how .step p { font-size: 13px; color: var(--dim); }
@media (max-width: 700px) { .how { grid-template-columns: 1fr; } }