@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --bg:#0A0B0D;
  --surface:#111317;
  --surface-raised:#171A1F;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.20);
  --text:#E8EAED;
  --text-strong:#FFFFFF;
  --text-muted:#A7ADB5;
  --text-faint:#747B85;
  --accent:#4F8EF7;
  --accent-soft:rgba(79,142,247,.10);
  --success:#3FB950;
  --error:#F85149;
  --warning:#D29922;
  --font-sans:'Inter',-apple-system,system-ui,sans-serif;
  --font-mono:'JetBrains Mono','SF Mono',Menlo,monospace;
  --content:1140px;
  --text-col:760px;
  --diagram:1320px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.65 var(--font-sans);overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit}
::selection{background:var(--accent);color:#07101f}
.container{width:min(var(--content),calc(100% - 48px));margin-inline:auto}
.text-col{max-width:var(--text-col)}
.muted{color:var(--text-muted)}

/* Navigation stays visually related to the portfolio, without importing its motion language. */
.site-header{position:sticky;top:8px;z-index:100;padding-top:2px;pointer-events:none}
.nav{pointer-events:auto;width:min(1160px,calc(100% - 32px));margin:0 auto;min-height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 12px 0 18px;border:1px solid var(--border);border-radius:18px;background:rgba(10,11,13,.90);backdrop-filter:blur(18px)}
.brand{font-size:22px;font-weight:600;letter-spacing:-.025em;display:flex;align-items:center;gap:11px;color:var(--text-strong)}
.brand-mark{width:8px;height:8px;background:var(--accent);border-radius:2px;transform:rotate(45deg)}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-links a{padding:9px 11px;color:var(--text-muted);font-size:14px;font-weight:500;border-radius:9px;transition:color .15s ease,background .15s ease}
.nav-links a:hover,.nav-links a.active{color:var(--text-strong);background:rgba(255,255,255,.055)}
.nav-cta{background:var(--accent)!important;color:#07101f!important;font-weight:600!important}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text)}

/* Hero */
.hero{min-height:640px;height:calc(100vh - 12px);display:flex;align-items:center;position:relative;border-bottom:1px solid var(--border)}
.hero-inner{width:min(var(--content),calc(100% - 48px));margin-inline:auto;padding:94px 0 56px}
.eyebrow,.section-label{font:500 12px/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted)}
.hero h1{font-size:clamp(44px,5.2vw,60px);font-weight:600;line-height:1.08;letter-spacing:-.025em;color:var(--text-strong);max-width:940px;margin:26px 0 0}
.standfirst{max-width:62ch;font-size:18px;color:var(--text-muted);margin:28px 0 0}
.role-line{max-width:68ch;color:var(--text-muted);font-size:15px;margin:30px 0 0}
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);margin-top:62px;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.metric{padding:24px 24px 24px 0;border-right:1px solid var(--border);min-height:116px}
.metric:not(:first-child){padding-left:24px}
.metric:last-child{border-right:0}
.metric strong{display:block;font:600 46px/1 var(--font-mono);letter-spacing:-.02em;color:var(--text-strong);font-variant-numeric:tabular-nums}
.metric span{display:block;margin-top:11px;font-size:13px;line-height:1.4;color:var(--text-muted);max-width:22ch}

/* Section rhythm */
.section{padding:128px 0;border-bottom:1px solid var(--border)}
.section.band{background:var(--surface)}
.section-label{display:flex;align-items:center;gap:10px;margin-bottom:28px}
.section-label .num{color:var(--text-faint)}
.section-label .rule{width:24px;height:1px;background:var(--border)}
.section-label .name{color:var(--text-muted)}
h2{font-size:clamp(30px,3.3vw,38px);font-weight:600;line-height:1.18;letter-spacing:-.02em;color:var(--text-strong);margin:0}
h3{font-size:21px;font-weight:600;line-height:1.35;letter-spacing:-.01em;color:var(--text-strong);margin:0}
p{max-width:68ch}
.section-intro{color:var(--text-muted);margin:22px 0 0}

.constraint-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(300px,5fr);gap:88px;align-items:start}
.constraint-copy p{margin:26px 0 0}
.pull-quote{position:sticky;top:112px;border:1px solid rgba(255,255,255,.12);border-left:2px solid var(--accent);padding:32px;background:transparent;font-size:20px;line-height:1.55;color:var(--text-strong)}
.pull-quote p{margin:0;max-width:30ch}.pull-quote p+p{margin-top:26px;font-weight:600}

.scope-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:52px}
.scope-card{padding-top:26px;position:relative}
.scope-card::before{content:"";position:absolute;left:0;top:0;width:0;height:2px;background:var(--accent);transition:width .5s cubic-bezier(.16,1,.3,1)}
.scope-card.visible::before{width:100%}
.scope-card p{font-size:15px;color:var(--text-muted);margin:14px 0 0}

.diagram-wrap{width:min(var(--diagram),calc(100% - 32px));margin:52px auto 0;padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:8px}
.diagram-wrap img{width:100%;height:auto;border-radius:4px}
.caption{font-size:13px;line-height:1.5;color:var(--text-muted);margin:14px 0 0}
.zone-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:44px}
.zone h3{font:500 12px/1.3 var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-strong)}
.zone .namespace{display:block;margin-top:7px;color:var(--accent);font:500 12px/1.3 var(--font-mono)}
.zone p{font-size:15px;color:var(--text-muted);margin:16px 0 0}

.decision-stack{display:grid;gap:32px;max-width:920px;margin:48px auto 0}
.decision-card{padding:48px;border:1px solid var(--border);border-radius:4px;transition:border-color .2s ease}
.decision-card:hover{border-color:var(--border-strong)}
.chip{display:inline-flex;width:max-content;padding:4px 10px;border-radius:4px;background:var(--accent-soft);color:var(--accent);font:500 11px/1.5 var(--font-mono);letter-spacing:.12em;text-transform:uppercase}
.decision-card h3{margin-top:20px}
.decision-card p{color:var(--text-muted);margin:18px 0 0}
.tradeoff{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;margin-top:28px!important}.tradeoff strong{color:var(--text)}

.pipeline-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:72px;align-items:start;margin-top:42px}
.findings{display:grid;gap:0;border-top:1px solid var(--border)}
.finding{padding:22px 0;border-bottom:1px solid var(--border);display:grid;grid-template-columns:96px 1fr;gap:20px}
.severity{font:500 11px/1.5 var(--font-mono);letter-spacing:.1em;text-transform:uppercase}
.severity.critical{color:var(--error)}.severity.high{color:var(--warning)}.severity.baseline{color:var(--text-muted)}
.finding strong{display:block;color:var(--text-strong);font-weight:600}.finding p{font-size:14px;color:var(--text-muted);margin:6px 0 0}
.evidence-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:52px}
.evidence-single{margin-top:20px}
.evidence-figure{margin:0}.evidence-figure img{width:100%;height:auto;border:1px solid var(--border);border-radius:4px;background:var(--surface)}

.isolation{background:#08090b}
.terminal-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:46px}
.terminal{background:#050608;border:1px solid rgba(255,255,255,.12);border-radius:8px;overflow:hidden}
.terminal-head{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 14px;border-bottom:1px solid var(--border);font:500 11px/1 var(--font-mono)}
.window-dots{display:flex;gap:6px}.window-dots span{width:7px;height:7px;border-radius:50%;background:#5a6069}
.status{padding:5px 8px;border-radius:999px;font-size:10px;letter-spacing:.1em}.status.blocked{color:var(--error);background:rgba(248,81,73,.10)}.status.permitted{color:var(--success);background:rgba(63,185,80,.10)}
.terminal-body{padding:20px;min-height:190px;overflow:auto;font:400 14px/1.6 var(--font-mono);white-space:pre;tab-size:2;color:var(--text)}
.terminal-result{display:block;margin-top:18px}.terminal-result.error{color:var(--error)}.terminal-result.success{color:var(--success)}
.terminal-caption{font-size:13px;color:var(--text-muted);margin:12px 0 0}

.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.gallery-item{margin:0;min-width:0}.gallery-button{display:block;width:100%;padding:0;border:1px solid rgba(255,255,255,.08);border-radius:4px;background:var(--surface);overflow:hidden;cursor:zoom-in;transition:border-color .24s ease}.gallery-button:hover{border-color:rgba(255,255,255,.18)}
.gallery-button img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s ease}.gallery-button:hover img{transform:scale(1.02)}
.gallery-item .caption{margin-top:10px}

.limitations{max-width:860px}.limitation-list{display:grid;gap:28px;margin-top:46px}.limitation{border-left:2px solid rgba(255,255,255,.15);padding-left:20px}.limitation strong{display:block;color:var(--text-strong);font-weight:600}.limitation p{margin:8px 0 0;color:var(--text-muted)}

.stack-rows{margin-top:42px;border-top:1px solid var(--border)}
.stack-row{display:grid;grid-template-columns:180px 1fr;gap:30px;padding:20px 0;border-bottom:1px solid var(--border)}
.stack-label{font:500 12px/1.5 var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}
.tags{display:flex;gap:8px;flex-wrap:wrap}.tag{padding:5px 11px;border:1px solid rgba(255,255,255,.12);border-radius:3px;color:var(--text-muted);font:400 13px/1.5 var(--font-mono)}

.engagement{background:rgba(79,142,247,.06)}
.engagement-inner{max-width:760px}.engagement-inner p{color:var(--text-muted);margin:22px 0 0}
.cap-lines{display:grid;gap:22px;margin-top:42px}.cap-line{display:grid;grid-template-columns:3px 1fr;gap:16px}.cap-line::before{content:"";background:var(--accent)}.cap-line strong{display:block;color:var(--text-strong);font-weight:600}.cap-line span{display:block;color:var(--text-muted);font-size:15px;margin-top:4px}
.primary-cta{display:inline-flex;margin-top:42px;padding:14px 28px;border-radius:4px;background:var(--accent);color:#07101f;font-weight:600;transition:filter .15s ease,transform .15s ease}.primary-cta:hover{filter:brightness(1.08)}.primary-cta:active{transform:translateY(1px)}
.availability-line{display:block;margin-top:16px;color:var(--text-muted);font-size:13px}

.footer{padding:28px 0 38px;border-top:1px solid var(--border);font:400 11px/1.5 var(--font-mono);color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.footer-row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}

/* Progress rail */
.progress-rail{position:fixed;z-index:20;left:18px;top:50%;transform:translateY(-50%);display:grid;gap:9px;border-left:1px solid var(--border);padding-left:12px}
.progress-rail a{position:relative;font:500 10px/1.2 var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint);transition:color .3s ease}
.progress-rail a::before{content:"";position:absolute;left:-14px;top:50%;width:3px;height:14px;background:transparent;transform:translateY(-50%)}
.progress-rail a.active{color:var(--text)}.progress-rail a.active::before{background:var(--accent)}

/* Motion: the four specified effects only */
.load-item{opacity:0;transform:translateY(12px);animation:loadIn .42s cubic-bezier(.16,1,.3,1) forwards}
.load-1{animation-delay:0ms}.load-2{animation-delay:80ms}.load-3{animation-delay:160ms}.load-4{animation-delay:220ms}.load-5{animation-delay:300ms}.load-6{animation-delay:360ms}.load-7{animation-delay:420ms}.load-8{animation-delay:480ms}
@keyframes loadIn{to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.16,1,.3,1),transform .5s cubic-bezier(.16,1,.3,1)}.reveal.visible{opacity:1;transform:none}

/* Lightbox */
.lightbox{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.92);padding:32px}.lightbox.open{display:flex}.lightbox-inner{width:min(1500px,94vw);max-height:94vh;display:grid;grid-template-rows:minmax(0,1fr) auto;gap:12px}.lightbox img{width:100%;max-height:86vh;object-fit:contain}.lightbox-caption{color:var(--text-muted);font-size:13px;text-align:center}.lightbox-close,.lightbox-nav{position:absolute;border:1px solid var(--border-strong);background:var(--surface-raised);color:var(--text);cursor:pointer}.lightbox-close{right:22px;top:22px;width:42px;height:42px;border-radius:50%;font-size:22px}.lightbox-nav{top:50%;transform:translateY(-50%);width:46px;height:60px;border-radius:4px;font-size:24px}.lightbox-prev{left:22px}.lightbox-next{right:22px}

:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

@media(max-width:1199px){.progress-rail{display:none}.diagram-wrap{width:min(var(--content),calc(100% - 48px))}}
@media(max-width:1023px){.constraint-grid,.pipeline-grid{grid-template-columns:1fr}.pull-quote{position:static}.scope-grid{grid-template-columns:1fr 1fr}.zone-grid{grid-template-columns:1fr}.gallery-grid{grid-template-columns:1fr 1fr}.stack-row{grid-template-columns:1fr}.terminal-grid{grid-template-columns:1fr}}
@media(max-width:767px){
  body{font-size:16px}.container{width:min(100% - 28px,var(--content))}.site-header{top:6px}.nav{width:min(100% - 20px,1160px);min-height:58px}.nav-toggle{display:grid;place-items:center}.nav-links{display:none;position:absolute;left:10px;right:10px;top:64px;padding:10px;border:1px solid var(--border);border-radius:12px;background:rgba(10,11,13,.98);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{text-align:center}
  .hero{height:auto;min-height:640px}.hero-inner{padding:86px 0 46px}.hero h1{font-size:36px}.standfirst{font-size:16px}.metric-strip{grid-template-columns:1fr 1fr;margin-top:44px}.metric{padding:20px 16px 20px 0;min-height:112px;border-bottom:1px solid var(--border)}.metric:nth-child(2){border-right:0;padding-left:16px}.metric:nth-child(3){padding-left:0;border-bottom:0}.metric:nth-child(4){padding-left:16px;border-right:0;border-bottom:0}.metric strong{font-size:36px}
  .section{padding:72px 0}.scope-grid{grid-template-columns:1fr}.decision-card{padding:30px}.finding{grid-template-columns:1fr;gap:8px}.evidence-pair{grid-template-columns:1fr}.gallery-grid{grid-template-columns:1fr}.gallery-button img{aspect-ratio:16/10}.terminal-body{overflow-x:auto;white-space:pre;min-width:620px}.terminal{overflow-x:auto}.stack-row{gap:12px}.footer-row{flex-direction:column}
  .lightbox{padding:12px}.lightbox-nav{width:38px;height:52px}.lightbox-prev{left:8px}.lightbox-next{right:8px}.lightbox-close{right:10px;top:10px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}.load-item,.reveal{opacity:1!important;transform:none!important}.scope-card::before{width:100%}.gallery-button:hover img{transform:none}
}


/* V15: hero alignment hardening */
@media(min-width:1200px){
  .hero-inner{padding-left:16px;padding-right:16px}
}