/* CRYPTIUM: graphite + gold, octagon/diamond geometry from the mark, tech grid backdrop. */
:root[data-brand="cryptium"] {
  --bg: #07080a;
  --bg-alt: #0a0b0d;
  --card: #0e1013;
  --fg: #f3f3f4;
  --muted: #8a8f98;
  --line: #22262c;
  --soft: #15181c;
  --accent: #d2a457;
  --accent-hover: #e2b66a;
  --accent-ink: #0a0a0a;
  --danger: #ff6b5b;
  --success: #d2a457;
  --gold: linear-gradient(135deg, #f3cf86 0%, #d2a457 45%, #a87634 100%);
  --oct: 16px;
  --shadow: 0 0 0 1px var(--line);
  --shadow-lg: 0 0 0 1px #2b2f36, 0 40px 120px rgba(0, 0, 0, .7);
  --display: "Exo 2", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color-scheme: dark;
}

.gold { background: var(--gold); -webkit-background-clip: text; background-clip: text; color: transparent; }
h1, h2, h3, .section-title, .amount, .cr-stats b, .cr-node, .btn { font-family: var(--display); }
.section-title { text-transform: uppercase; letter-spacing: .01em; font-weight: 800; font-size: clamp(30px, 4.6vw, 48px); }

/* Octagon corners, like the C mark. */
.card, .btn, .field-box, .sheet, .summary, .select-pill select {
  border-radius: 0;
  clip-path: polygon(var(--oct) 0, calc(100% - var(--oct)) 0, 100% var(--oct), 100% calc(100% - var(--oct)), calc(100% - var(--oct)) 100%, var(--oct) 100%, 0 calc(100% - var(--oct)), 0 var(--oct));
}
.btn, .field-box { --oct: 10px; }
.select-pill select { --oct: 7px; background: #20242a; box-shadow: none; }
.card { background: linear-gradient(180deg, #111318, #0c0d10); }
.btn-primary { background: var(--gold); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; font-size: 15px; }
.btn-primary:hover { background: var(--gold); filter: brightness(1.1); }

/* Backdrop grid fading out from the top */
.cr-grid-bg {
  position: absolute; inset: 0 0 auto; height: 1100px; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 50% at 70% 20%, rgba(210, 164, 87, .14), transparent 70%),
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px) 0 0 / 64px 64px,
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px) 0 0 / 64px 64px;
  -webkit-mask: linear-gradient(#000 40%, transparent); mask: linear-gradient(#000 40%, transparent);
}
body { position: relative; isolation: isolate; }

/* Nav */
.nav { background: color-mix(in srgb, var(--bg) 70%, transparent); }
.nav-inner { height: 64px; }
.brand img { height: 26px; width: auto; display: block; }
.nav-cta { min-height: 38px; padding: 0 18px; font-size: 13px; margin-left: 8px; }
@media (max-width: 720px) { .nav-cta { margin-left: auto; } }

/* Hero */
.cr-hero { display: grid; gap: 48px; align-items: center; padding-top: clamp(48px, 8vw, 104px); padding-bottom: 56px; }
.cr-hero { grid-template-columns: minmax(0, 1fr); }
@media (min-width: 960px) { .cr-hero { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px; } }
.cr-tag { display: inline-flex; align-items: center; gap: 10px; padding: 8px 14px; border: 1px solid var(--line); background: rgba(255, 255, 255, .02); font-size: 12px; font-weight: 600; letter-spacing: .14em; color: var(--muted); margin-bottom: 26px; }
.cr-diamond { width: 8px; height: 8px; background: var(--accent); transform: rotate(45deg); box-shadow: 0 0 12px var(--accent); }
.cr-hero h1 { font-size: clamp(40px, 6vw, 72px); font-weight: 800; line-height: 1.02; letter-spacing: -.02em; text-transform: uppercase; }
.cr-hero .lead { text-align: left; margin: 22px 0 0; max-width: 520px; }
.cr-stats { display: flex; flex-wrap: wrap; gap: 14px 36px; margin-top: 36px; }
.cr-stats div { display: flex; flex-direction: column; gap: 2px; padding-left: 16px; border-left: 2px solid var(--accent); }
.cr-stats b { font-size: 30px; font-weight: 700; line-height: 1.1; }
.cr-stats span { font-size: 13px; color: var(--muted); }

.cr-hero .calc { max-width: 500px; width: 100%; box-shadow: none; --oct: 22px; background: linear-gradient(180deg, #13161b, #0c0e11); position: relative; }
.cr-hero .calc::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(135deg, rgba(210, 164, 87, .35), transparent 30%, transparent 70%, rgba(210, 164, 87, .25)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; padding: 1px; }
.cr-calc-head { display: flex; justify-content: space-between; align-items: center; margin: 0 4px 14px; }
.cr-calc-head h2 { font-size: 20px; text-transform: uppercase; letter-spacing: .08em; }
.cr-live { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.cr-live i { width: 7px; height: 7px; background: var(--accent); transform: rotate(45deg); animation: cr-pulse 2s infinite; }
@keyframes cr-pulse { 50% { opacity: .3; } }
.swap { border-radius: 0; border: 0; background: var(--gold); color: #111; clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); width: 46px; height: 46px; }
.swap:hover { background: var(--gold); filter: brightness(1.1); }
.amount { font-weight: 700; letter-spacing: -.01em; }

/* Ticker */
.cr-ticker { border-block: 1px solid var(--line); background: rgba(255, 255, 255, .015); overflow: hidden; -webkit-mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.cr-ticker ul { display: flex; width: max-content; margin: 0; padding: 0; list-style: none; animation: cr-marquee 32s linear infinite; }
.cr-ticker:hover ul { animation-play-state: paused; }
.cr-ticker li { display: flex; align-items: center; gap: 12px; padding: 18px 34px; white-space: nowrap; font-size: 15px; }
.cr-ticker li::before { content: ""; width: 6px; height: 6px; background: var(--accent); transform: rotate(45deg); }
.cr-ticker b { font-weight: 600; color: var(--muted); }
.cr-ticker span { font-family: var(--display); font-weight: 700; }
@keyframes cr-marquee { to { transform: translateX(-50%); } }

/* Features */
.cr-features { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cr-features .card { padding: 30px 28px 32px; transition: transform .4s var(--spring); }
.cr-features .card:hover { transform: translateY(-4px); }
.cr-icon { display: block; width: 40px; height: 40px; margin-bottom: 26px; position: relative; border: 2px solid var(--accent); clip-path: polygon(30% 0, 70% 0, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0 70%, 0 30%); }
.cr-icon::after { content: ""; position: absolute; inset: 11px; background: var(--accent); transform: rotate(45deg); }
.cr-features h3 { font-size: 20px; margin-bottom: 8px; }
.cr-features p { color: var(--muted); font-size: 16px; }

/* Steps: diamond nodes on a line */
.cr-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 32px; position: relative; }
@media (min-width: 820px) {
  .cr-steps { grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .cr-steps::before { content: ""; position: absolute; top: 27px; left: 28px; right: 28px; height: 1px; background: repeating-linear-gradient(90deg, var(--accent) 0 6px, transparent 6px 12px); opacity: .6; }
}
.cr-steps li { position: relative; }
.cr-node { display: grid; place-items: center; width: 56px; height: 56px; margin-bottom: 22px; position: relative; font-size: 20px; font-weight: 800; color: var(--accent); }
.cr-node::before { content: ""; position: absolute; inset: 8px; border: 2px solid var(--accent); background: var(--bg); transform: rotate(45deg); z-index: -1; box-shadow: 0 0 22px rgba(210, 164, 87, .35); }
.cr-steps h3 { font-size: 20px; margin-bottom: 6px; text-transform: uppercase; letter-spacing: .03em; }
.cr-steps p { color: var(--muted); font-size: 16px; }

.faq { padding: 6px 28px; }
.faq summary { font-family: var(--display); font-weight: 700; }
.contact-label { text-transform: uppercase; letter-spacing: .12em; font-size: 11px; }
.cr-footer { display: flex; align-items: center; gap: 14px; }
.footer { background: #050608; }

/* Order sheet */
.sheet { --oct: 22px; background: #111318; }
@media (max-width: 600px) { .sheet { clip-path: polygon(var(--oct) 0, calc(100% - var(--oct)) 0, 100% var(--oct), 100% 100%, 0 100%, 0 var(--oct)); } }
.summary { --oct: 10px; background: var(--soft); }
.form-field input:not([type="radio"]), .form-field textarea { border-radius: 0; background: #0b0c0f; border-color: #2a2e35; }
.segmented, .segmented span { border-radius: 0; }
.segmented input:checked + span { background: #262a31; }