/* Atelier Forge V9: dimensional obsidian, smoked glass, titanium, and copper. */
:root {
  color-scheme: dark;
  --forge-void: #111619;
  --forge-black: #171d20;
  --forge-panel: #222a2e;
  --forge-panel-2: #2b353a;
  --forge-glass: rgba(29, 37, 41, 0.88);
  --forge-ivory: #fbf7f0;
  --forge-paper: #eef1f0;
  --forge-steel: #aeb8bb;
  --forge-muted: #c8ced0;
  --forge-line: rgba(239, 244, 241, 0.22);
  --forge-line-strong: rgba(239, 244, 241, 0.4);
  --forge-copper: #cf704e;
  --forge-copper-bright: #f08b62;
  --forge-copper-dark: #8d3f2c;
  --forge-shadow: rgba(0, 0, 0, 0.42);
  --paper: var(--forge-paper);
  --ink: #15191b;
  --ink-soft: #3f474a;
  --muted: #616b6e;
  --line: #d2d0cb;
  --line-dark: #999d9c;
  --coral: var(--forge-copper);
  --coral-dark: #9c482f;
  --signal: var(--forge-copper-bright);
  --signal-dark: #9b4a32;
}

html { background: var(--forge-void); }
body { background: var(--forge-void); color: var(--forge-ivory); }
body::selection { background: var(--forge-copper); color: #fff; }
body.nav-open, body.billing-open { overscroll-behavior: contain; }
.reveal { opacity: 1; transform: translateY(20px); transition: transform 520ms cubic-bezier(0.2, 0.75, 0.2, 1); }
.reveal.is-visible { opacity: 1; transform: none; }

.scroll-progress { z-index: 300; height: 2px; }
.scroll-progress span { background: var(--forge-copper-bright); box-shadow: 0 0 14px rgba(224, 131, 93, 0.7); }

.site-header {
  min-height: 78px;
  padding-right: var(--gutter);
  padding-left: var(--gutter);
  border-bottom: 1px solid var(--forge-line);
  background: rgba(17, 22, 25, 0.94);
  color: var(--forge-ivory);
  backdrop-filter: blur(24px) saturate(120%);
  -webkit-backdrop-filter: blur(24px) saturate(120%);
}
.site-header::after {
  position: absolute;
  right: var(--gutter);
  bottom: -1px;
  width: 120px;
  height: 1px;
  background: var(--forge-copper);
  content: "";
}
.site-header.scrolled { box-shadow: 0 20px 52px rgba(0, 0, 0, 0.34); }
.brand { gap: 12px; color: var(--forge-ivory); }
.brand-symbol { width: 25px; height: 26px; }
.brand-symbol i { width: 4px; height: 25px; background: var(--forge-ivory); box-shadow: 8px 0 18px rgba(255,255,255,0.08); }
.brand-symbol i:nth-child(2) { background: var(--forge-ivory); }
.brand-symbol::after { right: -1px; bottom: 1px; width: 5px; height: 5px; background: var(--forge-copper-bright); box-shadow: 0 0 12px rgba(224, 131, 93, 0.62); }
.brand-lockup strong { font-size: 13px; letter-spacing: 0; }
.brand-lockup small { border-left-color: var(--forge-line-strong); color: var(--forge-steel); letter-spacing: 0; }

.nav { color: rgba(241, 236, 227, 0.7); }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { font-size: 12px; font-weight: 620; }
.nav-links a::after { background: var(--forge-copper-bright); }
.nav-context { display: none; }
.header-actions { position: relative; z-index: 170; }
.account-button { color: rgba(241, 236, 227, 0.72); }
.account-button:hover { background: rgba(255,255,255,0.06); color: #fff; }

.billing-button, .button, .plan-button, .credit-button, .panel-continue {
  min-height: 48px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0;
}
.billing-button {
  min-width: 106px;
  border: 1px solid var(--forge-copper);
  background: var(--forge-copper);
  color: #fff;
  box-shadow: inset 0 1px rgba(255,255,255,0.18), 0 12px 28px rgba(98, 35, 21, 0.28);
}
.billing-button:hover { border-color: var(--forge-copper-bright); background: var(--forge-copper-bright); box-shadow: inset 0 1px rgba(255,255,255,0.22), 0 16px 34px rgba(98, 35, 21, 0.36); }
.button { position: relative; min-width: 184px; overflow: hidden; border-color: var(--forge-line-strong); background: rgba(8,10,11,0.55); color: var(--forge-ivory); }
.button.primary { border-color: var(--forge-copper); background: var(--forge-copper); color: #fff; box-shadow: inset 0 1px rgba(255,255,255,0.18), 0 18px 38px rgba(80,29,18,0.28); }
.button:hover, .plan-button:hover { transform: translateY(-2px); }
.button.primary:hover { border-color: var(--forge-copper-bright); background: var(--forge-copper-bright); }
.button-arrow { position: relative; display: inline-block; width: 18px; height: 10px; margin-left: 18px; flex: 0 0 auto; }
.button-arrow::before { position: absolute; top: 4px; right: 0; width: 17px; height: 1px; background: currentColor; content: ""; }
.button-arrow::after { position: absolute; top: 1px; right: 0; width: 7px; height: 7px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; content: ""; transform: rotate(45deg); }

.menu-toggle { position: relative; z-index: 180; border: 1px solid transparent; }
.menu-toggle span { width: 24px; height: 1px; background: var(--forge-ivory); }
.menu-toggle:hover { border-color: var(--forge-line); background: rgba(255,255,255,0.04); }

.hero {
  min-height: 0;
  height: max(680px, calc(100svh - 40px));
  max-height: 1000px;
  padding: 156px var(--gutter) 122px;
  border-bottom: 1px solid var(--forge-line);
  background: #111619;
  color: var(--forge-ivory);
  isolation: isolate;
}
.hero::before {
  z-index: 0;
  top: 78px;
  right: 0;
  bottom: 0;
  left: 0;
  border-left: 0;
  background: #111619;
  clip-path: none;
  content: "";
  mask-image: none;
}
.hero::after {
  z-index: 5;
  top: 108px;
  right: var(--gutter);
  bottom: auto;
  width: 1px;
  height: 74px;
  border: 0;
  background: var(--forge-copper-bright);
  box-shadow: 0 0 16px rgba(240,139,98,0.44);
  content: "";
  transform: none;
}
.hero-copy { z-index: 8; max-width: 690px; }
.hero h1 {
  max-width: 690px;
  margin-bottom: 28px;
  color: var(--forge-ivory);
  font-size: 88px;
  font-weight: 500;
  line-height: 0.91;
  text-wrap: balance;
  text-shadow: 0 18px 54px rgba(0,0,0,0.45);
}
.hero h1 span:nth-child(2), .hero h1 span:nth-child(3) { display: inline; }
.hero h1 span:nth-child(2)::after { content: " "; }
.hero-copy > p { max-width: 510px; margin-bottom: 32px; color: rgba(251,247,240,0.84); font-size: 18px; line-height: 1.62; }
.hero-actions { gap: 12px; }
.hero-actions .secondary { border-color: var(--forge-line-strong); background: rgba(13,16,18,0.68); color: var(--forge-ivory); backdrop-filter: blur(12px); }
.hero-actions .secondary:hover { border-color: rgba(241,236,227,0.64); background: rgba(255,255,255,0.06); }

.hero-network {
  z-index: 4;
  top: 78px;
  right: 0;
  bottom: 0;
  left: 0;
  height: auto;
  overflow: hidden;
  opacity: 1;
  pointer-events: none;
  transform: none;
}
.hero-network::after {
  position: absolute;
  z-index: 3;
  right: 3.5%;
  bottom: 8.5%;
  width: 43%;
  height: 1px;
  background: rgba(240,139,98,0.66);
  box-shadow: 0 0 14px rgba(224,131,93,0.36);
  content: "";
  transform: rotate(-2deg);
  transform-origin: right;
  opacity: 0.4;
}
.hero-network .hero-core-visual {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.94) contrast(1.08) saturate(0.92);
  transform: translate3d(var(--hero-x, 0), var(--hero-y, 0), 0) scale(1.035);
  transition: transform 900ms cubic-bezier(0.2, 0.72, 0.2, 1);
  will-change: transform;
}
.hero-signal-field { position: absolute; z-index: 2; inset: 0; overflow: hidden; }
.hero-signal {
  position: absolute;
  display: block;
  height: 1px;
  overflow: visible;
  background: rgba(240,139,98,0.28);
  box-shadow: 0 0 8px rgba(240,139,98,0.18);
  transform-origin: left center;
}
.hero-signal i {
  position: absolute;
  top: -2px;
  left: 0;
  width: 22px;
  height: 5px;
  border: 1px solid rgba(255,185,151,0.82);
  background: rgba(207,112,78,0.76);
  box-shadow: 0 0 10px rgba(240,139,98,0.5);
  animation: coreSignal 5.8s cubic-bezier(0.45,0,0.55,1) infinite;
}
.hero-signal-a { top: 45.5%; left: 57.5%; width: 31%; transform: rotate(9deg); }
.hero-signal-b { top: 66%; left: 62%; width: 25%; transform: rotate(-5deg); opacity: 0.72; }
.hero-signal-c { top: 79%; left: 69%; width: 20%; transform: rotate(-1deg); opacity: 0.55; }
.hero-signal-b i { animation-delay: -2.1s; animation-duration: 6.7s; }
.hero-signal-c i { animation-delay: -4.3s; animation-duration: 7.4s; }
@keyframes coreSignal {
  0% { left: 0; opacity: 0; transform: scaleX(0.55); }
  12% { opacity: 1; }
  76% { opacity: 0.9; }
  100% { left: calc(100% - 22px); opacity: 0; transform: scaleX(1); }
}
.network-caption { z-index: 5; right: 6%; bottom: 12%; left: auto; width: 310px; border: 1px solid var(--forge-line); border-radius: 2px; background: rgba(17,22,25,0.82); color: var(--forge-ivory); backdrop-filter: blur(16px); }
.network-caption span { color: var(--forge-steel); }
.network-caption i { background: var(--forge-copper-bright); box-shadow: 0 0 12px rgba(224,131,93,0.7); }
.hero-rail { z-index: 9; right: var(--gutter); bottom: 22px; left: var(--gutter); border: 1px solid var(--forge-line); background: rgba(24,31,35,0.88); backdrop-filter: blur(16px); }
.hero-rail > span { min-height: 52px; color: rgba(251,247,240,0.72); }
.hero-rail > span:first-child { color: var(--forge-ivory); }
.hero-rail > span + span { border-left-color: var(--forge-line); }
.status-dot { background: var(--forge-copper); box-shadow: 0 0 0 4px rgba(199,103,67,0.13); }
.status-dot.online { background: var(--forge-copper-bright); box-shadow: 0 0 0 4px rgba(224,131,93,0.14), 0 0 15px rgba(224,131,93,0.5); }

.section-index { color: var(--forge-copper); font-weight: 780; letter-spacing: 0; }
.gateway-intro, .delivery-section, .compatibility-section, .use-cases, .billing-section, .operator-section, .contact-block {
  border-color: var(--forge-line);
  background: var(--forge-black);
  color: var(--forge-ivory);
}
.gateway-intro { grid-template-columns: 0.3fr 1.25fr; gap: 38px 72px; min-height: 620px; padding-top: 128px; padding-bottom: 116px; background: #171e22; }
.gateway-intro::before {
  position: absolute;
  top: 0;
  right: var(--gutter);
  bottom: 0;
  width: 1px;
  background: var(--forge-line);
  content: "";
}
.gateway-statement h2 { max-width: 930px; color: var(--forge-ivory); font-size: 74px; line-height: 0.96; }
.gateway-statement > p { max-width: 650px; color: var(--forge-muted); }
.gateway-map { border-color: var(--forge-line); color: var(--forge-muted); }
.gateway-map strong { color: var(--forge-ivory); }
.gateway-map i { background: var(--forge-line-strong); }
.gateway-map i::after { border-color: var(--forge-copper); }

.delivery-section { padding-top: 112px; padding-bottom: 112px; background: #1a2226; }
.delivery-heading h2, .compatibility-copy h2, .use-cases .section-heading h2, .billing-heading h2, .operator-title h2 { color: var(--forge-ivory); }
.delivery-heading > p:last-child, .compatibility-copy > p:last-child, .use-cases .section-heading > p:last-child, .billing-heading > p:last-child, .operator-title > p:last-child { color: var(--forge-muted); }
.delivery-ledger { border-top-color: var(--forge-line-strong); }
.delivery-ledger article { border-bottom-color: var(--forge-line); transition: background 240ms ease, transform 240ms ease; }
.delivery-ledger article:hover { background: rgba(255,255,255,0.025); transform: translateX(8px); }
.delivery-ledger h3 { color: var(--forge-ivory); }
.delivery-ledger p { color: var(--forge-muted); }
.delivery-ledger span, .delivery-ledger strong { color: var(--forge-copper-bright); }

.journey-section, .security-section, .usage-section, .account-section, .about-section, .faq-block { background: var(--forge-paper); color: var(--ink); }
.journey-section { padding-top: 118px; }
.section-heading h2, .security-copy h2, .usage-heading h2, .account-intro h2, .about-title h2, .faq-block h2 { color: var(--ink); font-size: 70px; line-height: 0.95; }
.journey-line { border-bottom-color: #8a8f90; perspective: 800px; }
.journey-line::before, .journey-line::after, .journey-line span { background: var(--forge-copper); }
.journey-step { min-height: 250px; border-color: #c7c7c3; }
.journey-step > span { color: var(--forge-copper); }

.product-stage { padding-top: 120px; padding-bottom: 132px; background: #dfe6e4; color: var(--ink); }
.product-stage .section-heading h2 { color: var(--ink); }
.product-demo { perspective: 1500px; }
.code-window, .account-preview { border-radius: 4px; backface-visibility: hidden; transition: transform 420ms cubic-bezier(0.2,0.75,0.2,1), box-shadow 420ms ease; }
.code-window { border-color: rgba(255,255,255,0.15); background: #0d1012; box-shadow: -18px 30px 70px rgba(26,31,33,0.24); transform: rotateY(3deg) translateZ(18px); transform-origin: right center; }
.account-preview { border-color: rgba(17,20,22,0.2); background: var(--forge-paper); box-shadow: 18px 30px 70px rgba(26,31,33,0.16); transform: rotateY(-3deg) translateZ(6px); transform-origin: left center; }
.product-demo:hover .code-window, .product-demo:hover .account-preview { transform: rotateY(0) translateZ(0); }
.code-tabs button.active, .route-line span, .route-line strong { color: var(--forge-copper-bright); }
.usage-bar i, .active-state i { background: var(--forge-copper); }

.compatibility-section { background: #182024; }
.compatibility-spec { border-top-color: var(--forge-line-strong); }
.compatibility-spec > div { border-bottom-color: var(--forge-line); }
.compatibility-spec span { color: var(--forge-steel); }
.compatibility-spec strong { color: var(--forge-ivory); }

.use-cases { background: #141c20; }
.use-case-list { border-top-color: var(--forge-line-strong); }
.use-case { border-bottom-color: var(--forge-line); }
.use-case:hover { background: rgba(255,255,255,0.025); }
.use-case h3 { color: var(--forge-ivory); }
.use-case p { color: var(--forge-muted); }
.use-case > span, .use-case > i { color: var(--forge-copper-bright); }

.security-section { background: #e5e9e7; }
.security-orbit { border-color: #888e8e; border-radius: 3px; transform: rotate(45deg); }
.security-orbit span { border-color: var(--forge-copper); border-radius: 2px; background: #111416; transform: translate(-50%, -50%) rotate(-45deg); }
.security-orbit i { border-radius: 1px; background: var(--forge-copper); box-shadow: none; }
.security-list { border-top-color: #888e8e; }
.security-list > div { border-bottom-color: #c3c4c1; }
.security-list span { color: var(--forge-copper-dark); }

.usage-section { background: var(--forge-paper); }
.token-equation { border-color: #a7aaa8; box-shadow: 0 28px 70px rgba(18,21,23,0.08); }
.token-equation > div { background: #ebe9e4; }
.token-equation .total { background: #d7c1b5; }
.usage-rules { border-top-color: var(--ink); }
.usage-rules article { border-bottom-color: #d0cfca; }
.usage-rules span { color: var(--forge-copper-dark); }

.billing-section { padding-top: 124px; padding-bottom: 128px; background: #151c20; }
.checkout-form.page-billing { perspective: 1500px; }
.email-field input { border: 1px solid var(--forge-line-strong); border-radius: 3px; background: rgba(255,255,255,0.025); color: var(--forge-ivory); }
.email-field input:focus { border-color: var(--forge-copper); box-shadow: 0 0 0 3px rgba(199,103,67,0.12); }
.plan-table { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; border: 1px solid var(--forge-line-strong); background: #101619; transform-style: preserve-3d; }
.plan-column { min-width: 0; min-height: 420px; border: 0; border-right: 1px solid var(--forge-line); padding: 30px 24px 24px; background: var(--forge-panel); color: var(--forge-ivory); box-shadow: inset 0 1px rgba(255,255,255,0.035); transition: background 240ms ease, box-shadow 240ms ease, transform 240ms ease; }
.plan-column:last-child { border-right: 0; }
.plan-column + .plan-column { border-left: 0; }
.plan-column:hover { z-index: 2; background: var(--forge-panel-2); box-shadow: 0 28px 70px rgba(0,0,0,0.46), inset 0 1px rgba(255,255,255,0.06); transform: translateY(-8px) translateZ(20px); }
.plan-column.featured::before { top: 0; height: 2px; background: var(--forge-copper-bright); box-shadow: 0 0 14px rgba(224,131,93,0.48); }
.plan-column.selected { background: #302522; box-shadow: inset 0 0 0 1px var(--forge-copper), 0 24px 64px rgba(0,0,0,0.34); }
.plan-column h3, .plan-column .plan-price strong, .plan-column .plan-limit { color: var(--forge-ivory); }
.plan-column header span, .plan-column .plan-price span, .plan-column li { color: var(--forge-muted); }
.plan-column li::before { color: var(--forge-copper-bright); }
.plan-column .plan-button { width: 100%; min-height: 46px; margin-top: auto; justify-content: space-between; border-color: var(--forge-line-strong); background: transparent; color: var(--forge-ivory); }
.plan-column .plan-button.primary, .plan-column.selected .plan-button { border-color: var(--forge-copper); background: var(--forge-copper); color: #fff; }
.plan-column .plan-button:hover { border-color: var(--forge-copper-bright); background: var(--forge-copper-bright); }
.checkout-rail { border-color: var(--forge-line); color: var(--forge-steel); }
.billing-legal { color: var(--forge-steel); }
.billing-legal a { color: var(--forge-copper-bright); }

.credits-section { color: var(--ink); }
.credit-grid { border-color: #9a9e9d; box-shadow: 0 30px 80px rgba(0,0,0,0.18); }
.credit-card, .credit-contact-card { border-color: #bbbdb9; background: var(--forge-paper); }
.credit-card:hover, .credit-card.selected { background: #171b1d; color: var(--forge-ivory); }
.credit-card > span, .credit-contact-card > span, .credit-contact-card i { color: var(--forge-copper-dark); }
.credit-button { display: flex; width: 100%; justify-content: space-between; border-color: #8d9292; background: transparent; }
.credit-card:hover .credit-button, .credit-card.selected .credit-button { border-color: var(--forge-copper); color: #fff; }
.credit-contact-card { background: #d9d8d3; }

.account-section { background: #e5e9e7; }
.account-entry { border-top-color: #8a8f8f; }
.web-register-form input, .web-login-form input, .web-activate-form input { border-radius: 3px; }
.web-register-form .button, .web-login-form .button, .web-activate-form .button { border-color: #111416; background: #111416; }

.operator-section { background: #182024; }
.operator-grid { border-color: var(--forge-line); }
.operator-grid article { border-color: var(--forge-line); }
.operator-grid span { color: var(--forge-copper-bright); }
.operator-grid h3 { color: var(--forge-ivory); }
.operator-grid p { color: var(--forge-muted); }

.about-section { background: var(--forge-paper); }
.principles { border-top-color: #8c9190; }
.principles article { border-bottom-color: #cdccc7; }
.principles span { color: var(--forge-copper-dark); }
.faq-block { background: #dfe4e2; }
.faq-block details { border-color: #b8bbb8; }
.contact-block { scroll-margin-top: 78px; background: #151c20; }
.contact-block h2 { color: var(--forge-ivory); }
.contact-block a { border-color: var(--forge-line); color: var(--forge-muted); }
.contact-block a:hover { color: var(--forge-copper-bright); }
.footer { border-top-color: var(--forge-line); background: #11171a; color: var(--forge-ivory); }
.footer p, .footer nav { color: var(--forge-steel); }

.billing-panel {
  top: 0;
  right: 0;
  bottom: 0;
  left: auto;
  width: min(650px, 100%);
  height: 100%;
  margin: 0 0 0 auto;
  border-left: 1px solid var(--forge-line-strong);
  border-radius: 0;
  background: rgba(24,31,35,0.985);
  color: var(--forge-ivory);
  box-shadow: -34px 0 100px rgba(0,0,0,0.6), inset 1px 0 rgba(255,255,255,0.03);
  backdrop-filter: blur(30px) saturate(115%);
  -webkit-backdrop-filter: blur(30px) saturate(115%);
}
.billing-panel::backdrop { background: rgba(7,10,12,0.58); backdrop-filter: blur(8px); }
.billing-panel[open] { display: block; animation: forgePanelIn 360ms cubic-bezier(0.18,0.72,0.2,1); }
.billing-panel-shell { display: flex; height: 100%; flex-direction: column; overflow-y: auto; padding: 34px 40px 44px; }
.billing-panel-shell > header { flex: 0 0 auto; }
.billing-panel-shell > header p { color: var(--forge-copper-bright); font-family: var(--sans); font-size: 11px; font-weight: 700; }
.billing-panel-shell > header h2 { color: var(--forge-ivory); font-size: 56px; line-height: 1; }
.panel-close { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid var(--forge-line); border-radius: 2px; color: var(--forge-ivory); font-size: 26px; }
.panel-close:hover { border-color: var(--forge-copper); background: rgba(199,103,67,0.1); }
.billing-tabs { flex: 0 0 auto; margin-top: 28px; border-bottom-color: var(--forge-line); }
.billing-tabs button { min-height: 50px; color: var(--forge-steel); font-size: 12px; }
.billing-tabs button.active { color: var(--forge-ivory); }
.billing-tabs button.active::after { height: 2px; background: var(--forge-copper-bright); box-shadow: 0 0 12px rgba(224,131,93,0.5); }
.billing-tab-panel.active { display: block; }
.panel-subscription-form .email-field { color: var(--forge-ivory); }
.panel-subscription-form .email-field input { border-color: var(--forge-line-strong); background: rgba(255,255,255,0.055); color: var(--forge-ivory); }
.selected-offer-banner { display: grid; grid-template-columns: auto 1fr; gap: 8px 18px; border: 1px solid var(--forge-line); border-radius: 3px; background: rgba(255,255,255,0.05); }
.selected-offer-banner > span { color: var(--forge-copper-bright); }
.selected-offer-banner > div strong { color: var(--forge-ivory); }
.selected-offer-banner > div p, .selected-offer-banner > p { color: var(--forge-steel); }

.panel-plan-list, .panel-credit-list { display: grid; gap: 10px; margin-top: 20px; border: 0; }
.panel-plan-option { position: relative; }
.panel-plan-option > input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.panel-plan-option > label {
  display: grid;
  min-height: 94px;
  grid-template-columns: minmax(0, 1fr) auto 24px;
  align-items: center;
  gap: 20px;
  border: 1px solid var(--forge-line);
  border-radius: 3px;
  padding: 18px 18px 18px 20px;
  background: rgba(255,255,255,0.035);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}
.panel-plan-option > label:hover { border-color: var(--forge-line-strong); background: rgba(255,255,255,0.065); transform: translateX(-3px); }
.panel-plan-option > input:focus-visible + label { outline: 3px solid rgba(224,131,93,0.32); outline-offset: 2px; }
.panel-plan-option.selected > label { border-color: var(--forge-copper); background: rgba(199,103,67,0.09); box-shadow: inset 3px 0 var(--forge-copper), 0 18px 36px rgba(0,0,0,0.24); }
.panel-plan-option label > span { display: grid; gap: 5px; min-width: 0; }
.panel-plan-option label > span > strong { color: var(--forge-ivory); font-family: var(--serif); font-size: 28px; font-weight: 500; }
.panel-plan-option label > span > small { color: var(--forge-steel); font-size: 12px; }
.panel-plan-option label > b { color: var(--forge-ivory); font-family: var(--serif); font-size: 22px; font-weight: 500; white-space: nowrap; }
.panel-plan-option label > b small { color: var(--forge-steel); font-family: var(--sans); font-size: 10px; font-weight: 500; }
.choice-indicator { position: relative; display: block; width: 20px; height: 20px; border: 1px solid var(--forge-line-strong); border-radius: 50%; }
.panel-plan-option.selected .choice-indicator { border-color: var(--forge-copper-bright); background: var(--forge-copper-bright); box-shadow: 0 0 0 4px rgba(224,131,93,0.1); }
.panel-plan-option.selected .choice-indicator::before { position: absolute; top: 4px; left: 6px; width: 5px; height: 8px; border-right: 1px solid #101315; border-bottom: 1px solid #101315; content: ""; transform: rotate(45deg); }
.panel-continue { position: sticky; z-index: 4; bottom: -1px; display: flex; width: 100%; min-height: 58px; align-items: center; justify-content: center; margin-top: 22px; border: 1px solid var(--forge-copper); background: var(--forge-copper); color: #fff; box-shadow: 0 -20px 38px rgba(13,16,18,0.9), inset 0 1px rgba(255,255,255,0.18); }
.panel-continue:hover { border-color: var(--forge-copper-bright); background: var(--forge-copper-bright); }
.panel-checkout-state { color: var(--forge-steel); }
.panel-checkout-state strong { color: var(--forge-ivory); }
.panel-microcopy { border-top-color: var(--forge-line); color: var(--forge-steel); }
.billing-panel .text-button { color: var(--forge-ivory); }
.billing-panel .panel-account-intro h3, .billing-panel .account-result strong { color: var(--forge-ivory); }
.billing-panel .panel-account-intro p, .billing-panel .account-result span { color: var(--forge-steel); }
.billing-panel .web-register-form input, .billing-panel .web-login-form input, .billing-panel .web-activate-form input { border-color: var(--forge-line-strong); background: rgba(255,255,255,0.055); color: var(--forge-ivory); }
.billing-panel .account-secondary, .billing-panel .activate-account { border-top-color: var(--forge-line); }
.billing-panel .account-key-card { border-color: var(--forge-line-strong); background: rgba(255,255,255,0.04); color: var(--forge-ivory); }
.billing-panel .account-key-card code { border-color: var(--forge-line); background: rgba(255,255,255,0.055); color: var(--forge-ivory); }

@keyframes forgePanelIn { from { opacity: 0; transform: translateX(56px); } to { opacity: 1; transform: none; } }
@keyframes forgeSheetIn { from { opacity: 0; transform: translateY(70px); } to { opacity: 1; transform: none; } }

@media (max-width: 1240px) {
  .hero h1 { font-size: 74px; }
  .plan-table { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .plan-column:nth-child(3n) { border-right: 0; }
  .plan-column:nth-child(n+4) { border-top: 1px solid var(--forge-line); }
}

@media (max-width: 1100px) {
  .site-header { grid-template-columns: 1fr auto; }
  .nav {
    position: fixed;
    z-index: 150;
    top: 78px;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    width: 100%;
    height: calc(100svh - 78px);
    min-height: calc(100svh - 78px);
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    align-items: stretch;
    gap: 0;
    overflow-y: auto;
    padding: 0;
    background: #151b1e;
    color: var(--forge-ivory);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-14px);
    transition: opacity 220ms ease, transform 320ms cubic-bezier(0.2,0.75,0.2,1), visibility 0s linear 320ms;
  }
  .nav-open .nav { display: grid; opacity: 1; visibility: visible; pointer-events: auto; transform: none; transition-delay: 0s; }
  .nav-links { display: grid; align-content: center; gap: 0; padding: 46px var(--gutter); counter-reset: forge-nav; }
  .nav-links a { position: relative; display: grid; min-height: 78px; grid-template-columns: 48px 1fr; align-items: center; border-bottom: 1px solid var(--forge-line); padding: 0 8px; color: var(--forge-ivory); font-family: var(--serif); font-size: 36px; font-weight: 500; counter-increment: forge-nav; }
  .nav-links a:first-child { border-top: 1px solid var(--forge-line); }
  .nav-links a::before { color: var(--forge-copper-bright); font-family: var(--sans); font-size: 10px; content: "0" counter(forge-nav); }
  .nav-links a::after { right: 6px; bottom: auto; left: auto; width: 22px; transform: scaleX(1); }
  .nav-links a:hover { background: rgba(255,255,255,0.025); }
  .nav-context { display: flex; align-items: flex-start; justify-content: center; flex-direction: column; border-left: 1px solid var(--forge-line); padding: 52px var(--gutter); background: #1b2327; }
  .nav-context > span { margin-bottom: 28px; color: var(--forge-copper-bright); font-size: 11px; text-transform: uppercase; }
  .nav-context > strong { max-width: 380px; color: var(--forge-ivory); font-family: var(--serif); font-size: 44px; font-weight: 500; line-height: 1.02; }
  .nav-context > p { max-width: 390px; margin: 26px 0 36px; color: var(--forge-muted); font-size: 14px; }
  .nav-context > a { display: flex; min-height: 48px; align-items: center; border: 1px solid var(--forge-line-strong); padding: 0 18px; color: var(--forge-ivory); font-family: var(--sans); font-size: 12px; }
  .nav-open main, .nav-open .footer { visibility: visible; }
  .nav-open .menu-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav-open .menu-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .hero { min-height: 0; height: max(720px, calc(100svh - 40px)); }
  .hero-network { left: 0; }
  .gateway-intro { grid-template-columns: 1fr; }
  .gateway-map { grid-column: 1; }
  .security-section { grid-template-columns: 130px 1fr; }
}

@media (max-width: 800px) {
  :root { --gutter: 20px; }
  .site-header { min-height: 66px; }
  .site-header::after { width: 64px; }
  .account-button { display: none; }
  .billing-button { min-width: 88px; min-height: 42px; padding: 0 13px; }
  .menu-toggle { display: flex; width: 42px; height: 42px; }
  .nav { top: 66px; height: calc(100svh - 66px); min-height: calc(100svh - 66px); grid-template-columns: 1fr; }
  .nav-links { align-content: start; padding: 26px 20px 12px; }
  .nav-links a { min-height: 58px; grid-template-columns: 36px 1fr; font-size: 28px; }
  .nav-context { justify-content: flex-start; border-top: 1px solid var(--forge-line); border-left: 0; padding: 28px 20px 42px; }
  .nav-context > span { margin-bottom: 14px; }
  .nav-context > strong { font-size: 32px; }
  .nav-context > p { margin: 16px 0 22px; }

  .hero { min-height: 0; height: calc(100svh - 40px); max-height: none; padding: 112px 20px 154px; }
  .hero::before { top: 66px; left: 0; }
  .hero::after { top: 86px; right: 20px; width: 1px; height: 48px; }
  .hero-copy { max-width: 100%; }
  .hero h1 { max-width: 100%; margin-bottom: 22px; font-size: 48px; line-height: 0.94; }
  .hero h1 span:nth-child(2), .hero h1 span:nth-child(3) { display: block; }
  .hero h1 span:nth-child(2)::after { content: none; }
  .hero-copy > p { max-width: 350px; margin-bottom: 24px; font-size: 15px; }
  .hero-actions { display: grid; width: 100%; grid-template-columns: 1fr; }
  .hero-actions .button { width: 100%; min-height: 54px; justify-content: space-between; }
  .hero-network { top: 412px; right: 0; bottom: 0; left: 0; height: auto; opacity: 1; }
  .hero-network .hero-core-visual { object-position: 44% center; filter: brightness(1.02) contrast(1.08) saturate(0.94); transform: scale(1.04); }
  .hero-network::after { right: 3%; bottom: 10%; width: 74%; }
  .hero-signal-a { top: 38%; left: 18%; width: 63%; }
  .hero-signal-b { top: 62%; left: 28%; width: 55%; }
  .hero-signal-c { top: 78%; left: 42%; width: 42%; }
  .network-caption { display: none; }
  .hero-rail { display: none; }

  .gateway-intro, .delivery-section, .journey-section, .product-stage, .compatibility-section, .use-cases, .security-section, .usage-section, .billing-section, .account-section, .operator-section, .about-section { padding-top: 82px; padding-bottom: 82px; }
  .gateway-statement h2, .section-heading h2, .security-copy h2, .usage-heading h2, .billing-heading h2, .account-intro h2, .operator-title h2, .about-title h2, .faq-block h2 { font-size: 46px; line-height: 0.98; }
  .gateway-map { grid-template-columns: 1fr; gap: 12px; }
  .gateway-map i { width: 1px; height: 24px; margin-left: 7px; }
  .product-demo { perspective: none; }
  .code-window, .account-preview { transform: none; }
  .security-section { grid-template-columns: 1fr; }
  .security-orbit { margin: 20px 0 34px 24px; }
  .plan-table { grid-template-columns: 1fr; border-right: 0; border-left: 0; }
  .plan-column { min-height: 340px; border-right: 0; border-bottom: 1px solid var(--forge-line); padding: 28px 20px; }
  .plan-column:nth-child(n+4) { border-top: 0; }
  .plan-column:hover { transform: none; }
  .credit-grid { grid-template-columns: 1fr 1fr; }

  .billing-panel { top: auto; right: 0; bottom: 0; left: 0; width: 100%; height: min(84svh, 760px); margin: auto 0 0; border-top: 1px solid var(--forge-line-strong); border-left: 0; border-radius: 6px 6px 0 0; }
  .billing-panel[open] { animation: forgeSheetIn 360ms cubic-bezier(0.18,0.72,0.2,1); }
  .billing-panel::before { position: absolute; z-index: 4; top: 9px; left: 50%; width: 48px; height: 3px; border-radius: 3px; background: rgba(241,236,227,0.34); content: ""; transform: translateX(-50%); }
  .billing-panel-shell { padding: 28px 18px 30px; }
  .billing-panel-shell > header h2 { font-size: 42px; }
  .billing-tabs { margin-top: 20px; }
  .billing-tabs button { min-height: 46px; }
  .panel-subscription-form .email-field { margin-top: 20px; }
  .selected-offer-banner { grid-template-columns: 1fr; gap: 8px; }
  .selected-offer-banner > div { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: end; gap: 14px; }
  .selected-offer-banner > div p { margin: 0; text-align: right; }
  .selected-offer-banner > p { grid-column: auto; max-width: 310px; margin-top: 8px; }
  .panel-plan-list, .panel-credit-list { gap: 8px; margin-top: 16px; }
  .panel-plan-option > label { min-height: 78px; grid-template-columns: minmax(0,1fr) auto 22px; gap: 12px; padding: 14px; }
  .panel-plan-option label > span > strong { font-size: 24px; }
  .panel-plan-option label > span > small { font-size: 11px; }
  .panel-plan-option label > b { font-size: 20px; }
  .panel-continue { min-height: 56px; margin-top: 16px; }
}

@media (max-width: 420px) {
  .brand-lockup strong { font-size: 11px; }
  .brand-lockup small { font-size: 8px; }
  .billing-button { min-width: 78px; padding: 0 10px; }
  .hero h1 { font-size: 42px; }
  .credit-grid { grid-template-columns: 1fr; }
  .panel-plan-option > label { grid-template-columns: minmax(0,1fr) auto 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-network, .code-window, .account-preview, .plan-column, .nav, .panel-plan-option > label { transition: none; transform: none; }
  .hero-network .hero-core-visual { transform: scale(1.02); transition: none; }
  .hero-signal i { animation: none; opacity: 0.72; }
  .billing-panel[open] { animation: none; }
}

.chat-entry {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 13px;
  border: 1px solid var(--forge-line);
  border-radius: 3px;
  color: var(--forge-ivory);
  font-size: 12px;
  font-weight: 720;
}
.chat-entry:hover { border-color: var(--forge-line-strong); background: rgba(255,255,255,0.06); }
.chat-entry-short { display: none; }
.account-chat-link { width: 100%; margin-top: 18px; }

@media (max-width: 800px) {
  .chat-entry { display: inline-flex; min-width: 60px; min-height: 42px; padding: 0 10px; }
  .chat-entry-full { display: none; }
  .chat-entry-short { display: inline; }
}

@media (max-width: 420px) {
  .header-actions { gap: 5px; }
  .chat-entry { min-width: 48px; padding: 0 7px; }
}

/* International controls, visible session state, and model workbench. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.language-select {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.language-select select {
  min-width: 70px;
  min-height: 42px;
  border: 1px solid var(--forge-line);
  border-radius: 3px;
  padding: 0 25px 0 9px;
  background: #171d20;
  color: var(--forge-ivory);
  font: 750 10px/1 var(--sans);
  letter-spacing: 0;
  cursor: pointer;
}

.language-select select:hover,
.language-select select:focus-visible {
  border-color: var(--forge-copper-bright);
}

.nav-language-select {
  display: none;
  width: min(100%, 390px);
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  margin-top: 20px;
  color: var(--forge-steel);
  font-size: 11px;
  font-weight: 750;
}

.nav-language-select select { min-width: 190px; }

.session-status {
  display: grid;
  min-width: 118px;
  max-width: 210px;
  min-height: 42px;
  grid-template-columns: 20px minmax(0, auto) minmax(0, 1fr);
  align-items: center;
  gap: 7px;
  border: 1px solid rgba(149, 169, 141, 0.34);
  border-radius: 3px;
  padding: 0 10px;
  background: rgba(149, 169, 141, 0.08);
  color: var(--forge-ivory);
}

.session-status[hidden] { display: none; }
.session-status svg { width: 18px; height: 18px; fill: none; stroke: #a8bd9f; stroke-width: 1.6; }
.session-status span { color: #b7c7b1; font-size: 9px; font-weight: 800; text-transform: uppercase; white-space: nowrap; }
.session-status strong { overflow: hidden; color: var(--forge-steel); font-size: 10px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.session-status:hover { border-color: rgba(149, 169, 141, 0.62); background: rgba(149, 169, 141, 0.13); }

.model-workbench {
  position: relative;
  padding: 132px var(--gutter);
  overflow: hidden;
  border-top: 1px solid #c8cecc;
  border-bottom: 1px solid #c8cecc;
  background: #e4e9e7;
  color: var(--ink);
}

.model-workbench::before {
  position: absolute;
  top: 0;
  right: var(--gutter);
  width: 1px;
  height: 92px;
  background: var(--forge-copper);
  content: "";
}

.model-workbench-heading {
  display: grid;
  max-width: 1180px;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.55fr);
  align-items: end;
  gap: 34px 72px;
}

.model-workbench-heading .section-index { grid-column: 1 / -1; }
.model-workbench-heading h2 {
  max-width: 820px;
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(54px, 6.6vw, 96px);
  font-weight: 500;
  line-height: 0.92;
}

.model-workbench-heading > p:last-child {
  max-width: 470px;
  margin: 0 0 7px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.7;
}

.model-comparison {
  display: grid;
  max-width: 1240px;
  grid-template-columns: 1fr 1fr;
  margin: 78px 0 0 auto;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.model-spec {
  min-width: 0;
  padding: 30px 34px 32px;
}

.model-spec + .model-spec { border-left: 1px solid #adb5b2; }
.model-spec-pro { background: #1a2023; color: var(--forge-ivory); }
.model-spec > header { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 14px; }
.model-spec > header span { color: var(--forge-copper); font-size: 10px; font-weight: 850; }
.model-spec > header strong { font-size: 13px; font-weight: 800; }
.model-spec > header i { border: 1px solid #9da8a4; border-radius: 2px; padding: 4px 6px; color: #5d6965; font-size: 8px; font-style: normal; font-weight: 850; text-transform: uppercase; }
.model-spec-pro > header span { color: var(--forge-copper-bright); }
.model-spec-pro > header i { border-color: rgba(167, 190, 157, 0.35); color: #a8bd9f; }
.model-spec h3 { margin: 48px 0 12px; font-family: var(--serif); font-size: clamp(38px, 4.2vw, 58px); font-weight: 500; line-height: 0.96; }
.model-spec > p { min-height: 74px; max-width: 520px; margin: 0; color: #505a57; font-size: 13px; line-height: 1.65; }
.model-spec-pro > p { color: var(--forge-steel); }
.model-spec dl { display: grid; grid-template-columns: 1.35fr 0.65fr; margin: 28px 0 0; border-top: 1px solid #aeb6b3; border-left: 1px solid #aeb6b3; }
.model-spec dl div { display: grid; gap: 5px; padding: 13px; border-right: 1px solid #aeb6b3; border-bottom: 1px solid #aeb6b3; }
.model-spec dt { color: #6c7572; font-size: 8px; font-weight: 750; text-transform: uppercase; }
.model-spec dd { margin: 0; font-size: 11px; font-weight: 750; }
.model-spec-pro dl { border-color: var(--forge-line); }
.model-spec-pro dl div { border-color: var(--forge-line); }
.model-spec-pro dt { color: var(--forge-steel); }
.model-spec ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 18px 0 0; padding: 0; list-style: none; }
.model-spec li { border: 1px solid #aeb6b3; border-radius: 2px; padding: 6px 8px; color: #4b5652; font-size: 9px; font-weight: 720; }
.model-spec-pro li { border-color: var(--forge-line); color: var(--forge-muted); }

.workbench-intro {
  display: grid;
  max-width: 1240px;
  grid-template-columns: 1fr minmax(280px, 0.48fr);
  align-items: end;
  gap: 32px 70px;
  margin: 118px 0 48px auto;
}

.workbench-intro h3 { max-width: 760px; margin: 0; font-family: var(--serif); font-size: clamp(42px, 5vw, 72px); font-weight: 500; line-height: 0.94; }
.workbench-intro p { max-width: 470px; margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.7; }
.workbench-list { max-width: 1240px; margin-left: auto; border-top: 1px solid var(--ink); }
.workbench-list article { display: grid; min-height: 126px; grid-template-columns: 58px minmax(0, 1fr) 120px; align-items: center; gap: 22px; border-bottom: 1px solid #b9c0bd; padding: 22px 4px; }
.workbench-list article > span { align-self: start; padding-top: 8px; color: var(--forge-copper); font-size: 10px; font-weight: 850; }
.workbench-list h3 { margin: 0 0 7px; font-family: var(--serif); font-size: 27px; font-weight: 500; line-height: 1; }
.workbench-list p { max-width: 740px; margin: 0; color: #56605d; font-size: 12px; line-height: 1.6; }
.workbench-list article > strong { justify-self: end; border: 1px solid #9ea8a4; border-radius: 2px; padding: 6px 8px; color: #596560; font-size: 9px; text-transform: uppercase; }
.video-scope-note { display: grid; max-width: 1240px; grid-template-columns: 160px minmax(0, 1fr); gap: 26px; margin: 34px 0 0 auto; border-left: 3px solid var(--forge-copper); padding: 20px 24px; background: #1b2225; color: var(--forge-ivory); }
.video-scope-note strong { color: var(--forge-copper-bright); font-size: 10px; text-transform: uppercase; }
.video-scope-note p { max-width: 920px; margin: 0; color: var(--forge-steel); font-size: 12px; line-height: 1.65; }

[dir="rtl"] .model-spec + .model-spec { border-right: 1px solid #adb5b2; border-left: 0; }
[dir="rtl"] .video-scope-note { border-right: 3px solid var(--forge-copper); border-left: 0; }
[dir="rtl"] .button-arrow { margin-right: 18px; margin-left: 0; transform: scaleX(-1); }
[dir="rtl"] .use-case > i { transform: scaleX(-1); }

@media (max-width: 1100px) {
  .session-status { min-width: 94px; grid-template-columns: 18px minmax(0, 1fr); }
  .session-status strong { display: none; }
  .nav-language-select { display: grid; }
  .model-workbench-heading, .workbench-intro { grid-template-columns: 1fr; align-items: start; }
  .model-comparison { margin-top: 58px; }
}

@media (max-width: 800px) {
  .site-header { gap: 12px; }
  .header-language-select { display: inline-flex; }
  .header-language-select select {
    width: 52px;
    min-width: 52px;
    max-width: 52px;
    padding-right: 17px;
    padding-left: 7px;
  }
  .header-actions .chat-entry { display: none; }
  .session-status { min-width: 70px; max-width: 78px; min-height: 42px; grid-template-columns: 14px minmax(0, 1fr); gap: 5px; padding: 0 7px; }
  .session-status svg { width: 14px; height: 14px; }
  .session-status span { overflow: hidden; font-size: 8px; text-overflow: ellipsis; }
  .model-workbench { padding: 84px 20px; }
  .model-workbench::before { right: 20px; height: 58px; }
  .model-workbench-heading { gap: 24px; }
  .model-workbench-heading h2 { font-size: 46px; line-height: 0.96; }
  .model-comparison { grid-template-columns: 1fr; margin-top: 46px; }
  .model-spec { padding: 26px 20px 28px; }
  .model-spec + .model-spec { border-top: 1px solid #adb5b2; border-left: 0; }
  [dir="rtl"] .model-spec + .model-spec { border-right: 0; }
  .model-spec h3 { margin-top: 34px; font-size: 42px; }
  .model-spec > p { min-height: 0; }
  .workbench-intro { gap: 18px; margin-top: 78px; }
  .workbench-intro h3 { font-size: 46px; }
  .workbench-list article { grid-template-columns: 36px minmax(0, 1fr); gap: 12px; padding: 22px 0; }
  .workbench-list article > strong { grid-column: 2; justify-self: start; }
  .workbench-list h3 { font-size: 24px; }
  .video-scope-note { grid-template-columns: 1fr; gap: 8px; padding: 18px; }
  .contact-block { scroll-margin-top: 66px; }
}

@media (max-width: 560px) {
  .site-header {
    gap: 8px;
    padding-right: 12px;
    padding-left: 12px;
  }
  .site-header::after { right: 12px; }
  .header-actions { gap: 4px; }
  .header-language-select select {
    width: 46px;
    min-width: 46px;
    max-width: 46px;
    padding-right: 14px;
    padding-left: 5px;
    font-size: 9px;
  }
  .billing-button { min-width: 72px; padding-right: 8px; padding-left: 8px; font-size: 10px; }
  .session-status {
    min-width: 36px;
    max-width: 36px;
    grid-template-columns: 1fr;
    place-items: center;
    padding: 0;
  }
  .session-status span,
  .session-status strong { display: none; }
}

@media (max-width: 420px) {
  .brand { gap: 8px; }
  .brand-symbol { width: 21px; }
  .brand-lockup small { display: none; }
  .billing-button { min-width: 72px; }
  .model-spec dl { grid-template-columns: 1fr; }
  .model-spec li { max-width: 100%; }
}