/* PK Axiom — site styles
   Tokens follow brand-kit/README.md */

:root {
  --midnight: #070e19;
  --midnight-deep: #050a13;
  --surface: #0c1524;
  --surface-2: #101a2a;
  --line: rgba(196, 197, 199, 0.12);
  --line-strong: rgba(196, 197, 199, 0.22);
  --text: #f6f7f8;
  --text-dim: #a7b1c2;
  --text-faint: #6f7b8f;
  --silver: #c4c5c7;
  --signal: #6ea8ff;
  --signal-soft: rgba(110, 168, 255, 0.14);
  --ok: #5ee3a1;

  --chrome: linear-gradient(115deg, #e7e8e9 0%, #ffffff 28%, #c4c5c7 49%, #8b8f95 70%, #f6f7f8 100%);

  --font-display: "Sora", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

/* Near-invisible scrollbar: the top progress bar and section dots do the wayfinding */
html { scrollbar-width: thin; scrollbar-color: rgba(196, 197, 199, 0.14) transparent; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(196, 197, 199, 0.12); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(196, 197, 199, 0.35); }

body {
  margin: 0;
  background: var(--midnight-deep);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin: 0 0 0.6em;
  font-weight: 600;
}
h1 { font-size: clamp(2.4rem, 5.4vw, 4.25rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
p { margin: 0 0 1em; color: var(--text-dim); }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 4px; }

.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--text); color: var(--midnight); padding: 10px 16px; border-radius: 8px;
}
.skip-link:focus { top: 12px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--silver); margin-bottom: 1.1rem;
}
.eyebrow::before {
  content: ""; width: 22px; height: 1px; background: var(--chrome);
}
.hero .eyebrow::before { display: none; }

.text-chrome {
  background: var(--chrome);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

.muted { color: var(--text-faint); font-size: 0.875rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px;
  font: 600 0.95rem/1 var(--font-body);
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s, border-color 0.25s;
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform 0.25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary {
  background: var(--chrome); color: var(--midnight);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.25) inset, 0 8px 30px -10px rgba(196,197,199,0.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(255,255,255,0.4) inset, 0 14px 40px -12px rgba(196,197,199,0.7); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--silver); background: rgba(255,255,255,0.06); }
.btn-sm { padding: 9px 16px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header-h);
  display: flex; align-items: center;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(7, 14, 25, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { width: 168px; height: auto; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a:not(.btn) { font-size: 0.92rem; color: var(--text-dim); transition: color 0.2s; position: relative; }
.nav a:not(.btn):hover { color: var(--text); }
.nav-toggle { display: none; }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--header-h) + 72px) 0 96px;
  background: var(--midnight);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 20%, transparent 75%);
  opacity: 0.55;
}
.glow { position: absolute; border-radius: 50%; filter: blur(90px); }
.glow-a { width: 560px; height: 560px; right: -120px; top: -160px; background: rgba(110, 168, 255, 0.16); animation: drift 14s ease-in-out infinite alternate; }
.glow-b { width: 420px; height: 420px; left: -160px; bottom: -200px; background: rgba(196, 197, 199, 0.10); animation: drift 18s ease-in-out infinite alternate-reverse; }
@keyframes drift { to { transform: translate(-60px, 40px) scale(1.08); } }

.hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.hero h1 { max-width: 14ch; }
.lead { font-size: 1.15rem; max-width: 54ch; color: var(--text-dim); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 44px; }

.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(94,227,161,0.6); animation: pulse 2.2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(94,227,161,0); } 100% { box-shadow: 0 0 0 0 rgba(94,227,161,0); } }

.hero-proof { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 36px; }
.hero-proof li { display: flex; flex-direction: column; }
.hero-proof strong { font-family: var(--font-display); font-size: 1.6rem; font-weight: 600; background: var(--chrome); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-proof span { font-size: 0.85rem; color: var(--text-faint); }

.hero-visual { position: relative; }
.hero-mark {
  position: absolute; width: 340px; right: -60px; bottom: -110px; opacity: 0.08; z-index: 0;
  filter: blur(0.5px);
}
.console {
  position: relative; z-index: 1;
  background: linear-gradient(180deg, rgba(16,26,42,0.92), rgba(9,16,28,0.92));
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.03) inset;
  overflow: hidden;
  backdrop-filter: blur(6px);
}
.console::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}
.console-head { display: flex; align-items: center; gap: 7px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: #233047; }
.console-title { margin-left: 10px; font: 500 0.78rem/1 ui-monospace, "SFMono-Regular", Consolas, monospace; color: var(--text-faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.console-status { margin-left: auto; font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ok); background: rgba(94,227,161,0.1); padding: 4px 9px; border-radius: 999px; }
.console-steps { list-style: none; margin: 0; padding: 14px 18px; display: grid; gap: 4px; }
.console-steps li {
  display: flex; gap: 14px; align-items: flex-start; padding: 10px 12px; border-radius: var(--radius-sm);
  opacity: 0.35; transition: opacity 0.5s var(--ease), background 0.5s var(--ease);
}
.console-steps li b { display: block; font-size: 0.9rem; font-weight: 600; color: var(--text); }
.console-steps li small { color: var(--text-dim); font-size: 0.82rem; }
.step-icon {
  flex: none; width: 22px; height: 22px; margin-top: 1px; border-radius: 50%;
  border: 1.5px solid var(--line-strong); position: relative; transition: all 0.4s var(--ease);
}
.console-steps li.active { opacity: 1; background: var(--signal-soft); }
.console-steps li.active .step-icon { border-color: var(--signal); border-top-color: transparent; animation: spin 0.9s linear infinite; }
.console-steps li.done { opacity: 1; }
.console-steps li.done .step-icon { background: var(--chrome); border-color: transparent; }
.console-steps li.done .step-icon::after {
  content: ""; position: absolute; left: 7px; top: 4px; width: 5px; height: 9px;
  border: solid var(--midnight); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
@keyframes spin { to { transform: rotate(360deg); } }
.console-foot { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-top: 1px solid var(--line); font-size: 0.85rem; color: var(--text-faint); }
.console-foot strong { font-family: var(--font-display); font-size: 1.1rem; color: var(--text); font-variant-numeric: tabular-nums; }

/* Strip */
.strip { border-block: 1px solid var(--line); background: var(--midnight-deep); overflow: hidden; padding: 18px 0; }
.strip-track { display: flex; gap: 56px; width: max-content; animation: marquee 40s linear infinite; }
.strip-track span { font-family: var(--font-display); font-size: 0.95rem; color: var(--text-faint); white-space: nowrap; display: inline-flex; align-items: center; gap: 56px; }
.strip-track span::after { content: "◆"; font-size: 0.5rem; color: var(--silver); opacity: 0.5; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Sections */
.section { padding: 112px 0; position: relative; }
.section-alt { background: var(--midnight); border-block: 1px solid var(--line); }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head p:not(.eyebrow) { font-size: 1.08rem; }

/* Service cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  position: relative; padding: 30px; border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), rgba(12,21,36,0.4));
  border: 1px solid var(--line);
  transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(255,255,255,0.35), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.35s;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 30px 60px -30px rgba(0,0,0,0.7); }
.card:hover::before { opacity: 1; }
.card p { margin: 0; font-size: 0.95rem; }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 22px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--line-strong);
}
.card-icon svg { width: 22px; height: 22px; fill: none; stroke: var(--silver); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.card-feature {
  grid-row: span 2; display: flex; flex-direction: column;
  background:
    radial-gradient(600px circle at 100% 0%, rgba(110,168,255,0.14), transparent 55%),
    linear-gradient(180deg, var(--surface-2), var(--surface));
  border-color: var(--line-strong);
}
.card-feature h3 { font-size: 1.5rem; }
.card-feature p { font-size: 1.02rem; }
.card-feature .card-icon { background: var(--chrome); border: 0; }
.card-feature .card-icon svg { stroke: var(--midnight); }
.tags { list-style: none; padding: 0; margin: auto 0 0; padding-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font-size: 0.78rem; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--text-dim); }

/* Agentic split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.split-copy > p:not(.eyebrow) { font-size: 1.05rem; }
.checklist { list-style: none; padding: 0; margin: 28px 0 36px; display: grid; gap: 14px; }
.checklist li { position: relative; padding-left: 32px; color: var(--text); font-size: 0.97rem; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 6px;
  background: var(--signal-soft); border: 1px solid rgba(110,168,255,0.35);
}
.checklist li::after {
  content: ""; position: absolute; left: 7px; top: 7px; width: 5px; height: 9px;
  border: solid var(--signal); border-width: 0 2px 2px 0; transform: rotate(45deg);
}

.flow { position: relative; display: grid; gap: 14px; }
.flow::before {
  content: ""; position: absolute; left: 31px; top: 30px; bottom: 30px; width: 1px;
  background: linear-gradient(var(--signal), rgba(196,197,199,0.25), var(--signal));
}
.flow-node {
  position: relative; display: flex; gap: 20px; align-items: flex-start;
  padding: 18px 22px 18px 14px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.flow-node:hover { border-color: rgba(110,168,255,0.45); transform: translateX(6px); }
.flow-num {
  flex: none; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  font: 600 0.78rem/1 var(--font-display); color: var(--midnight); background: var(--chrome);
  box-shadow: 0 0 0 6px var(--midnight);
}
.flow-node b { font-family: var(--font-display); font-weight: 600; }
.flow-node p { margin: 2px 0 0; font-size: 0.9rem; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.steps li { padding: 28px 24px 26px; border-top: 1px solid var(--line-strong); position: relative; }
.steps li::before { content: ""; position: absolute; top: -1px; left: 0; width: 48px; height: 1px; background: var(--chrome); }
.steps span { font: 600 0.8rem/1 var(--font-display); color: var(--signal); letter-spacing: 0.1em; display: block; margin-bottom: 18px; }
.steps p { font-size: 0.95rem; margin: 0; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.principle { padding: 28px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.principle p { margin: 0; font-size: 0.93rem; }
.stack { margin-top: 48px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.stack span { font-size: 0.85rem; color: var(--text-dim); padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,0.02); }

/* Contact */
.contact { background: radial-gradient(800px circle at 15% 50%, rgba(110,168,255,0.10), transparent 60%), var(--midnight-deep); }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-copy > p:not(.eyebrow) { font-size: 1.08rem; max-width: 46ch; }
.contact-email {
  display: inline-block; margin: 12px 0 16px;
  font: 600 clamp(1.4rem, 2.6vw, 2rem)/1.2 var(--font-display);
  background: var(--chrome); -webkit-background-clip: text; background-clip: text; color: transparent;
  border-bottom: 1px solid var(--line-strong); padding-bottom: 4px;
}
.contact-form {
  display: grid; gap: 16px; padding: 32px; border-radius: 20px;
  background: var(--surface); border: 1px solid var(--line-strong);
  box-shadow: 0 40px 80px -40px rgba(0,0,0,0.8);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: grid; gap: 7px; font-size: 0.82rem; font-weight: 500; color: var(--text-dim); }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; font: 400 0.97rem/1.4 var(--font-body); color: var(--text);
  background: var(--midnight-deep); border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 12px 14px; transition: border-color 0.2s, box-shadow 0.2s;
}
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-soft);
}
.contact-form .invalid { border-color: #ff7a7a; }
.form-note { margin: 0; font-size: 0.8rem; color: var(--text-faint); text-align: center; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0; background: var(--midnight-deep); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.footer-inner img { width: 140px; height: auto; }
.footer-inner nav { display: flex; gap: 24px; }
.footer-inner nav a { font-size: 0.88rem; color: var(--text-dim); }
.footer-inner nav a:hover { color: var(--text); }
.footer-inner p { margin: 0; font-size: 0.82rem; color: var(--text-faint); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ===== Scroll experience ===== */

/* Page progress + section dots */
.scroll-progress { position: fixed; inset: 0 0 auto; height: 2px; z-index: 60; pointer-events: none; }
.scroll-progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--signal), #ffffff); transform-origin: 0 50%; transform: scaleX(var(--page-p, 0)); }

.section-dots {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%); z-index: 40;
  display: flex; flex-direction: column; gap: 14px;
}
.section-dots a { position: relative; width: 10px; height: 10px; display: grid; place-items: center; }
.section-dots a::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--text-faint);
  transition: transform 0.3s var(--ease), background 0.3s, box-shadow 0.3s;
}
.section-dots a::after {
  content: attr(data-label); position: absolute; right: 22px; white-space: nowrap;
  font-size: 0.75rem; letter-spacing: 0.04em; color: var(--text); padding: 4px 10px; border-radius: 999px;
  background: rgba(16, 26, 42, 0.9); border: 1px solid var(--line);
  opacity: 0; transform: translateX(6px); transition: opacity 0.25s, transform 0.25s var(--ease); pointer-events: none;
}
.section-dots a:hover::after, .section-dots a:focus-visible::after { opacity: 1; transform: none; }
.section-dots a.active::before { background: var(--text); transform: scale(1.7); box-shadow: 0 0 12px rgba(110, 168, 255, 0.8); }

/* Header logo hides while the full-screen intro owns the brand */
.site-header .brand { transition: opacity 0.4s var(--ease), transform 0.4s var(--ease); }
.at-intro .site-header .brand { opacity: 0; transform: translateY(-6px); pointer-events: none; }

/* Intro */
.intro { position: relative; height: 190vh; background: var(--midnight-deep); }
.intro-stage {
  position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden;
  display: grid; place-items: center;
}
.intro-canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: calc(1 - var(--p, 0) * 0.7); }
.intro-vignette {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(500px circle at var(--cx, 50%) var(--cy, 45%), rgba(110, 168, 255, 0.10), transparent 60%),
    radial-gradient(ellipse 70% 60% at 50% 45%, transparent 30%, var(--midnight-deep) 100%);
}
.intro-brand {
  position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 30px;
  padding: 0 16px; text-align: center;
  transform: translateY(calc(var(--p, 0) * -22vh)) scale(calc(1 - var(--p, 0) * 0.5));
  opacity: calc(1 - var(--p, 0) * 1.7);
  filter: blur(calc(var(--p, 0) * 10px));
  will-change: transform, opacity;
}
.intro-mark { width: clamp(150px, 22vw, 260px); height: auto; overflow: visible; filter: drop-shadow(0 20px 50px rgba(110, 168, 255, 0.18)); }
.intro-mark .piece { transition: transform 1.3s var(--ease), opacity 1.1s var(--ease); }
.intro-mark .piece-p { transform: translate(-70px, -40px); opacity: 0; }
.intro-mark .piece-k { transform: translate(80px, 40px); opacity: 0; transition-delay: 0.12s; }
.intro-word {
  width: clamp(220px, 34vw, 440px); height: auto;
  clip-path: inset(0 100% 0 0); transition: clip-path 1.2s var(--ease) 0.7s;
}
.intro-tag {
  margin: 0; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: center;
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-dim);
  opacity: 0; transform: translateY(10px); transition: opacity 1s var(--ease) 1.4s, transform 1s var(--ease) 1.4s;
}
.intro-tag i { width: 4px; height: 4px; border-radius: 50%; background: var(--signal); }
.scroll-cue {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--text-faint);
  opacity: 0; transition: opacity 1s var(--ease) 2s;
}
.scroll-cue i { width: 1px; height: 48px; background: linear-gradient(var(--silver), transparent); position: relative; overflow: hidden; }
.scroll-cue i::after { content: ""; position: absolute; left: 0; top: -40%; width: 100%; height: 40%; background: var(--signal); animation: cue 1.8s var(--ease) infinite; }
@keyframes cue { to { top: 100%; } }

.is-loaded .intro-mark .piece { transform: none; opacity: 1; }
.is-loaded .intro-word { clip-path: inset(0 0 0 0); }
.is-loaded .intro-tag { opacity: 1; transform: none; }
.is-loaded .scroll-cue { opacity: calc(1 - var(--p, 0) * 4); transition-delay: 0s; }

/* The hero slides up over the pinned intro */
.hero { margin-top: -90vh; z-index: 2; border-radius: 32px 32px 0 0; box-shadow: 0 -30px 80px -20px rgba(0, 0, 0, 0.8); }
.hero::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 1px; z-index: 1;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
}
.hero .console { transition: transform 0.5s var(--ease); }

/* Services: pinned horizontal track (enabled by JS on wide screens) */
.cards-viewport { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.pin-meta { display: none; }
.services.is-pinned { padding: 0; }
.services.is-pinned .pin-stage {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  display: flex; flex-direction: column; justify-content: center; padding-top: var(--header-h);
}
.services.is-pinned .section-head { margin-bottom: 40px; display: flex; flex-wrap: wrap; align-items: flex-end; column-gap: 48px; max-width: none; }
.services.is-pinned .section-head > :not(.pin-meta) { max-width: 720px; flex-basis: 100%; }
.services.is-pinned .section-head > p:not(.eyebrow) { flex-basis: auto; margin-bottom: 0; }
.services.is-pinned .pin-meta {
  display: flex; align-items: center; gap: 14px; margin-left: auto;
  font: 500 0.8rem/1 var(--font-display); color: var(--text-faint); letter-spacing: 0.08em;
}
.pin-bar { width: 120px; height: 2px; background: var(--line-strong); border-radius: 2px; overflow: hidden; }
.pin-bar i { display: block; height: 100%; background: var(--chrome); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); }
.pin-count { color: var(--text); font-variant-numeric: tabular-nums; }
.services.is-pinned .cards-viewport { width: 100%; }
.services.is-pinned .cards {
  display: flex; width: max-content; gap: 22px;
  padding-inline: max(16px, calc((100vw - var(--container)) / 2));
  transform: translate3d(var(--x, 0px), 0, 0); will-change: transform;
}
.services.is-pinned .card { width: 380px; flex: none; min-height: 340px; display: flex; flex-direction: column; }
.services.is-pinned .card-feature { width: 520px; grid-row: auto; }

/* Agentic flow: line draws as you scroll, nodes light up */
.flow::after {
  content: ""; position: absolute; left: 31px; top: 30px; bottom: 30px; width: 2px; margin-left: -0.5px;
  background: linear-gradient(var(--signal), #ffffff); transform-origin: 50% 0; transform: scaleY(var(--p, 0));
  box-shadow: 0 0 12px rgba(110, 168, 255, 0.7);
}
.flow::before { background: var(--line-strong); }
.flow-node { opacity: 0.5; transition: opacity 0.5s var(--ease), border-color 0.5s, transform 0.5s var(--ease), background 0.5s; }
.flow-node.lit { opacity: 1; border-color: rgba(110, 168, 255, 0.4); background: linear-gradient(90deg, rgba(110, 168, 255, 0.08), var(--surface) 60%); }
.flow-node .flow-num { position: relative; z-index: 1; transition: box-shadow 0.5s; }
.flow-node.lit .flow-num { box-shadow: 0 0 0 6px var(--midnight), 0 0 24px 4px rgba(110, 168, 255, 0.55); }

/* Process: progress rail fills left to right */
.steps { position: relative; }
.steps::after {
  content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 2px;
  background: linear-gradient(90deg, var(--signal), #ffffff); transform-origin: 0 50%; transform: scaleX(var(--p, 0));
  box-shadow: 0 0 12px rgba(110, 168, 255, 0.6);
}

/* Responsive */
@media (max-width: 1024px) {
  .section-dots { display: none; }
  .hero-inner, .split, .contact-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero-visual { max-width: 520px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .card-feature { grid-row: auto; grid-column: 1 / -1; }
  .steps, .principles { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  :root { --header-h: 64px; }
  .brand img { width: 140px; }
  .nav-toggle {
    display: grid; place-content: center; gap: 6px; width: 44px; height: 44px;
    background: transparent; border: 1px solid var(--line-strong); border-radius: 12px; cursor: pointer;
  }
  .nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--text); transition: transform 0.3s var(--ease); }
  .nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 16px 24px; background: rgba(5,10,19,0.97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity 0.25s, transform 0.25s var(--ease), visibility 0.25s;
  }
  .nav.open { transform: none; opacity: 1; visibility: visible; }
  .nav a:not(.btn) { padding: 14px 4px; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav-cta { margin-top: 16px; padding: 14px; }
  .site-header:has(.nav.open) { background: rgba(5,10,19,0.97); }

  .hero { padding: 72px 0; border-radius: 24px 24px 0 0; margin-top: -60vh; }
  .intro { height: 160vh; }
  .intro-brand { gap: 22px; }
  .intro-tag { letter-spacing: 0.14em; font-size: 0.62rem; gap: 8px; flex-wrap: nowrap; white-space: nowrap; }
  .intro-tag i { width: 3px; height: 3px; }
  .steps::after { display: none; }
  .hero-proof { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .hero-proof strong { font-size: 1.35rem; }
  .hero-proof span { font-size: 0.75rem; line-height: 1.35; }
  .hero-mark { display: none; }
  .section { padding: 80px 0; }
  .section-head { margin-bottom: 40px; }
  .cards, .steps, .principles, .field-row { grid-template-columns: 1fr; }
  .card, .principle { padding: 24px; }
  .contact-form { padding: 22px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .intro { height: 100vh; }
  .intro-brand { transform: none; opacity: 1; filter: none; }
  .intro-mark .piece { transform: none; opacity: 1; }
  .intro-word { clip-path: none; }
  .intro-tag { opacity: 1; transform: none; }
  .scroll-cue { opacity: 1; }
  .hero { margin-top: 0; }
  .flow-node { opacity: 1; }
}