:root{
  --paper: #101923;
  --paper-alt: #182431;
  --panel: #1E2C3A;
  --ink: #F1F5F9;
  --ink-soft: #B7C5D4;
  --line: #425466;
  --line-soft: #314354;
  --accent: #F97316;
  --accent-ink: #FDBA74;
  --status: #4ADE80;
  --radius: 3px;
}

.light-theme{
  --paper: #EEF2F5;
  --paper-alt: #E2E8ED;
  --panel: #FFFFFF;
  --ink: #16273D;
  --ink-soft: #4A5D75;
  --line: #B9C6D4;
  --line-soft: #D3DCE4;
  --accent: #E8590C;
  --accent-ink: #7A2E06;
  --status: #2F9E5B;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:'Space Grotesk', sans-serif;
  color:var(--ink);
  margin:0;
  letter-spacing:-0.01em;
}
.mono{ font-family:'IBM Plex Mono', monospace; }
a{ color:inherit; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }

/* faint graph-paper backdrop */
.grid-bg{
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity:0.35;
  mask-image: linear-gradient(to bottom, black, black 60%, transparent 100%);
}

.wrap{ max-width:1180px; margin:0 auto; padding-left:32px; padding-right:32px; }

/* corner registration ticks, used on a few key panels */
.ticked{ position:relative; }
.ticked::before, .ticked::after{
  content:""; position:absolute; width:14px; height:14px;
  border-top:1.5px solid var(--ink-soft); border-left:1.5px solid var(--ink-soft);
  top:-1px; left:-1px; opacity:0.55;
}
.ticked::after{
  top:auto; left:auto; bottom:-1px; right:-1px;
  border-top:none; border-left:none;
  border-bottom:1.5px solid var(--ink-soft); border-right:1.5px solid var(--ink-soft);
}

/* topbar */
header.topbar{
  position:sticky; top:0; z-index:20;
  background:var(--paper); backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 32px;
  max-width:1180px; margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:10px; font-family:'Space Grotesk', sans-serif; font-weight:700; font-size:1.05rem; text-decoration:none; }
.brand-mark{
  width:30px; height:30px; border:1.5px solid var(--ink); border-radius:2px;
  display:flex; align-items:center; justify-content:center;
  font-family:'IBM Plex Mono', monospace; font-size:0.72rem; font-weight:500;
}
nav.primary{ display:flex; gap:28px; }
nav.primary a{ text-decoration:none; font-size:0.94rem; color:var(--ink-soft); }
nav.primary a:hover{ color:var(--ink); }
.topbar-call{
  font-family:'IBM Plex Mono', monospace; font-size:0.85rem; color:var(--ink-soft);
  display:flex; align-items:center; gap:8px;
}
.topbar-actions{ display:flex; align-items:center; gap:16px; }
.theme-toggle{
  display:inline-flex; align-items:center; gap:7px;
  border:1px solid var(--line); border-radius:var(--radius);
  background:var(--panel); color:var(--ink); padding:7px 10px;
  font-family:'IBM Plex Mono', monospace; font-size:0.78rem; cursor:pointer;
}
.theme-toggle:hover{ border-color:var(--accent); }
.theme-toggle-icon{ font-size:1rem; line-height:1; }
.dot-live{ width:7px; height:7px; border-radius:50%; background:var(--status); display:inline-block; }
@media (max-width:860px){ nav.primary{ display:none; } }
@media (max-width:520px){ .topbar-inner{ padding:14px 20px; } .topbar-call{ display:none; } .wrap{ padding-left:20px; padding-right:20px; } }

/* hero */
.hero{
  padding-top:88px; padding-bottom:64px;
  display:grid; grid-template-columns:1.15fr 0.85fr; gap:56px; align-items:start;
}
.eyebrow{
  font-family:'IBM Plex Mono', monospace; font-size:0.85rem; color:var(--ink-soft);
  margin:0 0 18px;
}
h1.hero-title{
  font-size:clamp(2.4rem, 4.2vw, 3.6rem);
  font-weight:600; line-height:1.08;
  max-width:14ch;
}
.hero-lead{
  margin:24px 0 32px; max-width:46ch; color:var(--ink-soft); font-size:1.08rem;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 22px; border-radius:var(--radius);
  font-size:0.95rem; font-weight:500; text-decoration:none;
  border:1.5px solid transparent; cursor:pointer;
}
.btn-primary{ background:var(--accent); color:#fff; }
.btn-primary:hover{ background:#cc4c09; }
.btn-ghost{ border-color:var(--ink); color:var(--ink); }
.btn-ghost:hover{ background:var(--panel); }

.status-panel{
  background:var(--panel); border:1px solid var(--line);
  padding:26px 28px; border-radius:var(--radius);
}
.status-head{
  display:flex; align-items:center; gap:9px;
  font-family:'IBM Plex Mono', monospace; font-size:0.86rem; color:var(--status);
  padding-bottom:18px; border-bottom:1px solid var(--line-soft); margin-bottom:18px;
}
.status-head .dot-live{ animation:pulse 2.4s ease-in-out infinite; }
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:0.35; } }
.status-panel dl{ margin:0; display:grid; gap:16px; }
.status-panel .row{ display:flex; justify-content:space-between; align-items:baseline; gap:12px; }
.status-panel dt{ color:var(--ink-soft); font-size:0.9rem; }
.status-panel dd{ margin:0; font-family:'IBM Plex Mono', monospace; font-size:0.98rem; font-weight:500; text-align:right; }
@media (max-width:900px){ .hero{ grid-template-columns:1fr; } }

/* section shell */
section{ padding-top:76px; padding-bottom:76px; border-top:1px solid var(--line); }
.section-head{
  display:flex; justify-content:space-between; align-items:end;
  gap:24px; margin-bottom:44px; flex-wrap:wrap;
}
.section-head h2{ font-size:1.9rem; font-weight:600; max-width:20ch; }
.section-num{ font-family:'IBM Plex Mono', monospace; color:var(--ink-soft); font-size:0.86rem; }

/* services */
.service-grid{ display:grid; grid-template-columns:repeat(2, 1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.service-panel{ background:var(--panel); padding:32px; }
.service-panel h3{ font-size:1.15rem; font-weight:600; margin-bottom:10px; }
.service-panel p{ color:var(--ink-soft); margin:0 0 14px; font-size:0.96rem; }
.service-panel .tags{ font-family:'IBM Plex Mono', monospace; font-size:0.78rem; color:var(--accent-ink); }
@media (max-width:700px){ .service-grid{ grid-template-columns:1fr; } }

/* stack */
.stack-grid{ display:grid; grid-template-columns:repeat(4, 1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.stack-col{ background:var(--panel); padding:26px 22px; }
.stack-col h3{ font-size:0.98rem; font-weight:600; margin-bottom:14px; }
.stack-col ul{ list-style:none; margin:0; padding:0; display:grid; gap:9px; }
.stack-col li{ font-family:'IBM Plex Mono', monospace; font-size:0.83rem; color:var(--ink-soft); padding-bottom:9px; border-bottom:1px dashed var(--line-soft); }
.stack-col li:last-child{ border-bottom:none; padding-bottom:0; }
@media (max-width:900px){ .stack-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .stack-grid{ grid-template-columns:1fr; } }

/* process */
.process-list{ display:grid; grid-template-columns:repeat(3,1fr); gap:36px; }
.process-step{ padding-top:18px; border-top:1.5px solid var(--ink); }
.process-step .step-no{ font-family:'IBM Plex Mono', monospace; color:var(--ink-soft); font-size:0.85rem; }
.process-step h3{ font-size:1.15rem; margin:10px 0 8px; }
.process-step p{ color:var(--ink-soft); margin:0; font-size:0.95rem; }
@media (max-width:760px){ .process-list{ grid-template-columns:1fr; } }

/* case study */
.case-intro{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:56px; align-items:start; margin-bottom:48px; }
.case-intro p{ color:var(--ink-soft); max-width:52ch; }
.case-tag{ font-family:'IBM Plex Mono', monospace; font-size:0.82rem; color:var(--accent-ink); background:var(--paper-alt); display:inline-block; padding:6px 12px; border-radius:var(--radius); margin-bottom:16px; }
.case-quote{ background:var(--panel); border:1px solid var(--line); padding:24px 26px; font-size:0.98rem; color:var(--ink); }
.case-quote span{ display:block; margin-top:10px; font-family:'IBM Plex Mono', monospace; font-size:0.8rem; color:var(--ink-soft); }
.case-stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); margin-bottom:48px; }
.case-stat{ background:var(--panel); padding:24px 22px; }
.case-stat .label{ font-family:'IBM Plex Mono', monospace; font-size:0.78rem; color:var(--ink-soft); margin-bottom:10px; }
.case-stat .value{ font-family:'Space Grotesk', sans-serif; font-size:1.7rem; font-weight:600; }
.case-stat .delta{ font-family:'IBM Plex Mono', monospace; font-size:0.82rem; color:var(--status); margin-top:6px; }
@media (max-width:900px){ .case-intro{ grid-template-columns:1fr; } .case-stats{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .case-stats{ grid-template-columns:1fr; } }

.case-timeline{ display:grid; gap:0; border-top:1px solid var(--line-soft); }
.case-tl-row{ display:grid; grid-template-columns:64px 200px 1fr; gap:20px; padding:16px 0; border-bottom:1px solid var(--line-soft); align-items:baseline; }
.case-tl-row .tl-no{ font-family:'IBM Plex Mono', monospace; color:var(--ink-soft); font-size:0.85rem; }
.case-tl-row .tl-period{ font-family:'IBM Plex Mono', monospace; font-size:0.85rem; color:var(--ink-soft); }
.case-tl-row .tl-body strong{ display:block; font-size:0.98rem; margin-bottom:3px; }
.case-tl-row .tl-body span{ color:var(--ink-soft); font-size:0.9rem; }
.case-tl-row.hl .tl-body strong{ color:var(--accent-ink); }
@media (max-width:700px){ .case-tl-row{ grid-template-columns:1fr; gap:4px; } .case-tl-row .tl-no{ display:none; } }

/* support */
.support{ background:var(--paper-alt); }
.support-inner{ display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start; }
.support-copy h2{ font-size:2rem; max-width:15ch; margin-bottom:18px; }
.support-copy p{ color:var(--ink-soft); max-width:44ch; }
.sla-panel{ background:var(--panel); border:1px solid var(--line); padding:0; }
.sla-row{ display:flex; justify-content:space-between; padding:20px 26px; border-bottom:1px solid var(--line-soft); }
.sla-row:last-child{ border-bottom:none; }
.sla-label{ font-size:0.95rem; }
.sla-label span{ display:block; color:var(--ink-soft); font-size:0.83rem; margin-top:3px; }
.sla-value{ font-family:'IBM Plex Mono', monospace; font-weight:500; text-align:right; white-space:nowrap; }
.sla-value.big{ font-size:1.3rem; color:var(--accent-ink); }
@media (max-width:860px){ .support-inner{ grid-template-columns:1fr; } }

/* contact */
.cta{ text-align:left; }
.cta h2{ font-size:2.2rem; max-width:16ch; margin-bottom:20px; }
.cta-row{ display:flex; justify-content:space-between; align-items:end; gap:32px; flex-wrap:wrap; }
.cta-details{ font-family:'IBM Plex Mono', monospace; font-size:0.92rem; color:var(--ink-soft); line-height:2; }
.cta-details a{ color:var(--ink); text-decoration:none; border-bottom:1px solid var(--line); }

footer{
  border-top:1px solid var(--line); padding:26px 0;
  font-family:'IBM Plex Mono', monospace; font-size:0.8rem; color:var(--ink-soft);
}
.footer-inner{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .status-head .dot-live{ animation:none; }
}