/* InferenceHub — inference-serving theme. Hub-and-spoke, API gateways, status panels, monospace accents. */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --hub: #18181B;
  --hub-2: #232328;
  --blue: #2563EB;
  --blue-dark: #1D4ED8;
  --lime: #84CC16;
  --zinc: #71717A;
  --zinc-light: #A1A1AA;
  --line: #E4E4E7;
  --line-dark: #2E2E33;
  --cloud: #FAFAFA;
  --white: #FFFFFF;
  --maxw: 1200px;
  --radius: 6px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  background: var(--cloud);
  color: var(--hub);
  line-height: 1.6;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: 'IBM Plex Sans', sans-serif; font-weight: 700; line-height: 1.12; color: var(--hub); letter-spacing: -0.02em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }
p { color: #3F3F46; }
a { color: var(--blue); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--blue-dark); }
img { max-width: 100%; display: block; }
.mono { font-family: 'IBM Plex Mono', ui-monospace, monospace; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: clamp(54px, 7vw, 100px) 0; position: relative; }
.lead { font-size: clamp(1rem, 1.5vw, 1.15rem); color: #52525B; max-width: 640px; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }

/* monospace endpoint eyebrow */
.endpoint {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: 'IBM Plex Mono', monospace; font-size: .74rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .14em; color: var(--blue);
}
.endpoint::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--lime); }

/* Buttons — square, fill blue, hover lime + black */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 28px; border-radius: var(--radius); font-weight: 600;
  font-family: 'IBM Plex Sans', sans-serif; cursor: pointer; border: 1px solid transparent;
  font-size: .95rem; letter-spacing: .01em; transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--lime); color: var(--hub); }
.btn-line { background: transparent; color: var(--hub); border-color: var(--line); }
.btn-line:hover { background: var(--hub); color: var(--white); border-color: var(--hub); }
.btn-light { background: var(--white); color: var(--hub); }
.btn-light:hover { background: var(--lime); color: var(--hub); }

/* Header / nav — white minimal */
header.site {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: baseline; gap: 2px; font-weight: 700; font-size: 1.28rem; color: var(--hub); }
.logo b { color: var(--blue); font-weight: 700; }
.logo .suffix { font-family: 'IBM Plex Mono', monospace; font-size: .9rem; color: var(--lime); font-weight: 600; margin-left: 2px; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { color: #3F3F46; font-weight: 500; font-size: .94rem; }
.nav-links a:hover { color: var(--blue); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.burger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 8px; }
.burger span { width: 24px; height: 2px; background: var(--hub); transition: .3s; }

/* Hero — dark hub */
.hero { background: var(--hub); color: var(--white); padding: clamp(56px, 8vw, 96px) 0; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.07) 1px, transparent 0);
  background-size: 26px 26px; opacity: .6;
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 52px; align-items: center; }
.hero h1 { color: var(--white); margin: 18px 0; }
.hero h1 .hl { color: var(--lime); }
.hero p.lead { color: #D4D4D8; }
.hero .endpoint { color: var(--lime); }
.hero .endpoint::before { background: var(--blue); }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero-tag { font-family: 'IBM Plex Mono', monospace; font-size: .8rem; color: var(--zinc-light); margin-top: 22px; }
.hero-visual { position: relative; }
.hero-visual img { border-radius: var(--radius); border: 1px solid var(--line-dark); }
.hero-panel {
  position: absolute; bottom: -16px; left: -16px; background: var(--hub-2);
  border: 1px solid var(--line-dark); border-left: 3px solid var(--lime);
  border-radius: var(--radius); padding: 14px 18px; font-family: 'IBM Plex Mono', monospace;
}
.hero-panel small { color: var(--zinc-light); display: block; font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; }
.hero-panel strong { color: var(--lime); font-size: 1.15rem; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--lime); margin-right: 6px; animation: blink 1.6s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* Section heads */
.sec-head { max-width: 680px; margin-bottom: 44px; }
.sec-head.center { margin-left: auto; margin-right: auto; }
.sec-head h2 { margin: 12px 0 12px; }

/* Stats / metrics bar */
.metrics { background: var(--hub); }
.metrics .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--radius); overflow: hidden; }
.metric { background: var(--hub); padding: 32px 24px; text-align: center; }
.metric-val { font-family: 'IBM Plex Mono', monospace; font-weight: 600; font-size: clamp(1.8rem, 4vw, 2.7rem); color: var(--lime); display: block; }
.metric-label { color: var(--zinc-light); font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; margin-top: 6px; display: block; }

/* Cards grid */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* Package cards — cloud white, blue bottom border, endpoint labels */
.pkg {
  background: var(--white); border: 1px solid var(--line); border-bottom: 3px solid var(--blue);
  border-radius: var(--radius); padding: 28px 24px; display: flex; flex-direction: column;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.pkg:hover { transform: translateY(-5px); box-shadow: 0 18px 40px rgba(24,24,27,.1); border-bottom-color: var(--lime); }
.pkg .pkg-label { font-family: 'IBM Plex Mono', monospace; font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--zinc); }
.pkg h3 { margin: 10px 0; }
.pkg .price { font-family: 'IBM Plex Mono', monospace; font-size: 1.35rem; font-weight: 600; color: var(--hub); margin: 6px 0 4px; }
.pkg .price small { font-size: .8rem; color: var(--zinc); font-weight: 400; }
.pkg p { font-size: .92rem; color: #52525B; flex: 1; }
.pkg ul { list-style: none; margin: 14px 0 18px; display: grid; gap: 7px; }
.pkg ul li { font-size: .88rem; color: #3F3F46; padding-left: 20px; position: relative; }
.pkg ul li::before { content: "+"; position: absolute; left: 0; color: var(--lime); font-family: 'IBM Plex Mono', monospace; font-weight: 600; }

/* Inference stack strip */
.stack { background: var(--hub-2); border-radius: var(--radius); padding: 36px clamp(24px, 4vw, 48px); }
.stack h2 { color: var(--white); }
.stack p { color: var(--zinc-light); }
.stack-nodes { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.node {
  font-family: 'IBM Plex Mono', monospace; font-size: .82rem; color: #E4E4E7;
  background: var(--hub); border: 1px solid var(--line-dark); border-left: 3px solid var(--blue);
  padding: 12px 16px; border-radius: var(--radius); transition: border-color .25s ease, color .25s ease;
}
.node:hover { border-left-color: var(--lime); color: var(--lime); }

/* Why grid — feature panels */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feat {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: transform .35s ease, border-color .35s ease;
}
.feat:hover { transform: translateY(-4px); border-color: var(--blue); }
.feat .fn { font-family: 'IBM Plex Mono', monospace; font-size: .82rem; color: var(--blue); font-weight: 600; }
.feat h3 { margin: 12px 0 8px; }
.feat p { font-size: .92rem; color: #52525B; }

/* Full-bleed image + CTA */
.fullbleed { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 380px; display: flex; align-items: center; }
.fullbleed img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.fullbleed::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(24,24,27,.92), rgba(24,24,27,.55)); }
.fullbleed .fb-copy { position: relative; z-index: 1; padding: clamp(32px, 5vw, 60px); max-width: 620px; }
.fullbleed h2 { color: var(--white); }
.fullbleed p { color: #D4D4D8; margin: 14px 0 26px; }

/* Service cards (3 on home) */
.svc { background: var(--white); border: 1px solid var(--line); border-bottom: 3px solid var(--blue); border-radius: var(--radius); padding: 28px 24px; transition: transform .35s ease, box-shadow .35s ease; }
.svc:hover { transform: translateY(-5px); box-shadow: 0 16px 36px rgba(24,24,27,.08); }
.svc .svc-id { font-family: 'IBM Plex Mono', monospace; font-size: .78rem; color: var(--lime); background: var(--hub); padding: 5px 10px; border-radius: 4px; display: inline-block; }
.svc h3 { margin: 14px 0 8px; }
.svc p { font-size: .92rem; color: #52525B; }

/* Testimonials */
.tcard { background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--lime); border-radius: var(--radius); padding: 26px 24px; }
.tcard p { color: #27272A; }
.tcard .who { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
.tcard .av { width: 42px; height: 42px; border-radius: var(--radius); background: var(--blue); display: grid; place-items: center; font-family: 'IBM Plex Mono', monospace; font-weight: 600; color: var(--white); }
.tcard .who b { color: var(--hub); display: block; }
.tcard .who small { color: var(--zinc); }

/* CTA band — dark */
.cta-band { background: var(--hub); border-radius: var(--radius); padding: clamp(40px, 6vw, 72px); text-align: center; position: relative; overflow: hidden; border: 1px solid var(--line-dark); }
.cta-band::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1px, transparent 0); background-size: 24px 24px; }
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { color: var(--white); }
.cta-band p { color: var(--zinc-light); max-width: 560px; margin: 14px auto 26px; }

/* Page hero (inner) */
.page-hero { background: var(--hub); color: var(--white); padding: clamp(48px, 6vw, 78px) 0 clamp(40px, 5vw, 58px); position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1px, transparent 0); background-size: 26px 26px; }
.page-hero .wrap { position: relative; z-index: 1; }
.page-hero h1 { color: var(--white); margin: 10px 0; }
.page-hero .lead { color: #D4D4D8; }
.breadcrumb { font-family: 'IBM Plex Mono', monospace; color: var(--zinc-light); font-size: .8rem; margin-bottom: 14px; }
.breadcrumb a { color: var(--zinc-light); }
.breadcrumb a:hover { color: var(--lime); }

/* Catalog filters */
.filters { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 32px; }
.filter-btn { background: var(--white); border: 1px solid var(--line); color: #3F3F46; padding: 9px 17px; border-radius: var(--radius); cursor: pointer; font-family: 'IBM Plex Mono', monospace; font-size: .82rem; transition: .2s; }
.filter-btn:hover { border-color: var(--blue); color: var(--blue); }
.filter-btn.active { background: var(--blue); color: var(--white); border-color: var(--blue); }

/* Catalog cards */
.cat-card { background: var(--white); border: 1px solid var(--line); border-bottom: 3px solid var(--blue); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .35s ease, box-shadow .35s ease; }
.cat-card:hover { transform: translateY(-5px); box-shadow: 0 20px 44px rgba(24,24,27,.12); }
.cat-card img { aspect-ratio: 3/2; object-fit: cover; width: 100%; }
.cat-body { padding: 22px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.cat-cat { font-family: 'IBM Plex Mono', monospace; font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--blue); }
.cat-ref { font-family: 'IBM Plex Mono', monospace; font-size: .76rem; color: var(--zinc); }
.cat-meta { list-style: none; font-size: .85rem; color: #52525B; display: grid; gap: 4px; }
.cat-meta li b { color: var(--hub); font-weight: 600; }
.cat-price { font-family: 'IBM Plex Mono', monospace; font-size: 1.15rem; color: var(--hub); font-weight: 600; margin-top: auto; }
.cat-price span { color: var(--zinc); font-size: .8rem; }

/* Services detail rows */
.svc-row { display: grid; grid-template-columns: 64px 1fr; gap: 22px; background: var(--white); border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: var(--radius); padding: 26px 24px; transition: border-color .25s ease, transform .25s ease; }
.svc-row:hover { border-left-color: var(--lime); transform: translateX(4px); }
.svc-row .num { font-family: 'IBM Plex Mono', monospace; font-size: 1.4rem; font-weight: 600; color: var(--blue); }
.svc-row h3 { margin-bottom: 6px; }
.svc-row p { font-size: .93rem; color: #52525B; }

/* About */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.about-grid img { border-radius: var(--radius); border: 1px solid var(--line); }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat-row .cell { background: var(--white); padding: 28px 22px; text-align: center; }
.stat-row .cell b { font-family: 'IBM Plex Mono', monospace; font-size: clamp(1.6rem, 3.6vw, 2.3rem); color: var(--blue); display: block; }
.stat-row .cell span { color: var(--zinc); font-size: .84rem; }
.cert-list { list-style: none; display: grid; gap: 10px; }
.cert-list li { padding: 14px 18px; background: var(--white); border: 1px solid var(--line); border-left: 3px solid var(--lime); border-radius: var(--radius); display: flex; gap: 12px; align-items: center; font-size: .92rem; }
.cert-list li::before { content: ">"; font-family: 'IBM Plex Mono', monospace; color: var(--blue); font-weight: 600; }

/* Forms */
.form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(26px, 4vw, 40px); }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: 7px; color: var(--hub); font-size: .9rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--cloud); color: var(--hub); font-family: inherit; font-size: .95rem; transition: border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.14); }
.field textarea { min-height: 130px; resize: vertical; }
.field .err { color: #DC2626; font-size: .82rem; margin-top: 6px; display: none; }
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #DC2626; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.success-msg { display: none; text-align: center; padding: 30px 20px; }
.success-msg.show { display: block; animation: fadein .5s ease; }
.success-msg .ic { width: 60px; height: 60px; border-radius: var(--radius); background: var(--blue); display: grid; place-items: center; margin: 0 auto 18px; font-family: 'IBM Plex Mono', monospace; font-size: 1.6rem; color: var(--white); }
@keyframes fadein { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* Contact info */
.info-card { background: var(--white); border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 14px; }
.info-card small { font-family: 'IBM Plex Mono', monospace; color: var(--zinc); text-transform: uppercase; letter-spacing: .1em; font-size: .7rem; }
.info-card p { color: var(--hub); margin-top: 5px; }

/* Legal prose */
.prose { max-width: 820px; }
.prose h2 { margin: 36px 0 12px; font-size: clamp(1.3rem, 2.4vw, 1.7rem); }
.prose h3 { margin: 24px 0 10px; color: var(--blue); }
.prose p, .prose li { color: #3F3F46; margin-bottom: 12px; }
.prose ul, .prose ol { padding-left: 22px; margin-bottom: 14px; }
.prose strong { color: var(--hub); }

/* Footer — dark hub */
footer.site { background: var(--hub); color: var(--zinc-light); border-top: 3px solid var(--blue); padding: 58px 0 26px; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 34px; }
.foot-grid h4 { color: var(--white); margin-bottom: 16px; font-size: .95rem; font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: .08em; }
.foot-about .logo { color: var(--white); }
.foot-about p { color: var(--zinc-light); font-size: .9rem; margin-top: 14px; }
.foot-links { list-style: none; display: grid; gap: 9px; }
.foot-links a { color: var(--zinc-light); font-size: .9rem; }
.foot-links a:hover { color: var(--lime); }
.foot-contact p { color: var(--zinc-light); font-size: .88rem; margin-bottom: 7px; }
.foot-contact b { color: var(--white); }
.foot-bottom { border-top: 1px solid var(--line-dark); margin-top: 42px; padding-top: 22px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--zinc); font-size: .82rem; font-family: 'IBM Plex Mono', monospace; }

/* Cookie banner */
.cookie { position: fixed; bottom: 22px; left: 22px; right: 22px; max-width: 540px; margin: 0 auto; background: var(--hub); border: 1px solid var(--line-dark); border-left: 3px solid var(--lime); border-radius: var(--radius); padding: 20px 22px; z-index: 200; display: none; box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.cookie.show { display: block; animation: fadein .4s ease; }
.cookie p { font-size: .87rem; color: var(--zinc-light); }
.cookie .row { display: flex; gap: 12px; margin-top: 14px; align-items: center; }
.cookie .btn { padding: 9px 20px; font-size: .86rem; }
.cookie a { color: var(--lime); font-family: 'IBM Plex Mono', monospace; font-size: .85rem; }

/* Scroll animations with JS fallback */
.slide-up, .fade-in { opacity: 1; transform: none; transition: opacity .35s ease, transform .35s ease; }
html.js .slide-up { opacity: 0; transform: translateY(22px); }
html.js .fade-in { opacity: 0; }
html.js .slide-up.visible, html.js .fade-in.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 980px) {
  .hero-grid, .about-grid { grid-template-columns: 1fr; }
  .grid-4, .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics .wrap, .stat-row { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-links { position: fixed; top: 70px; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 24px; gap: 18px; border-bottom: 1px solid var(--line); transform: translateY(-150%); transition: transform .35s ease; }
  .nav-links.open { transform: translateY(0); }
  .burger { display: flex; }
  .nav-cta .btn { display: none; }
  .grid-3, .grid-2, .feat-grid, .form-row { grid-template-columns: 1fr; }
  .svc-row { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .grid-4 { grid-template-columns: 1fr; }
  .metrics .wrap, .stat-row { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
}