:root{
  --bg:#F6F7F4;
  --panel:#FFFFFF;
  --ink:#14181C;
  --ink-soft:#4A5560;
  --ink-faint:#8B95A0;
  --line:#DDE1E4;
  --blue:#3457A6;
  --blue-tint:#EAEFF9;
  --copper:#C2703D;
  --radius:10px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media(prefers-reduced-motion:reduce){ html{scroll-behavior:auto;} *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;} }

body{
  margin:0; color:var(--ink);
  font-family:'IBM Plex Sans',sans-serif; font-size:16px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
  /* Subtle blueprint/graph-paper texture — ties into the "systems" concept and keeps
     the light theme from reading as flat, empty white. */
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(52,87,166,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(52,87,166,0.05) 1px, transparent 1px);
  background-size:28px 28px;
}
.mono{font-family:'IBM Plex Mono',monospace;}
a{color:inherit;}
a:focus-visible, button:focus-visible, .navlink:focus-visible{
  outline:2px solid var(--blue); outline-offset:3px; border-radius:4px;
}
::selection{ background:var(--blue); color:#fff; }

.wrap{max-width:960px;margin:0 auto;padding:0 24px;}

/* ---------------- HEADER ---------------- */
header{
  position:sticky; top:0; z-index:50; background:rgba(246,247,244,0.9);
  backdrop-filter:blur(8px); border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:960px;margin:0 auto;padding:16px 24px;
  display:flex;justify-content:space-between;align-items:center;
}
.brand{display:flex;flex-direction:row;align-items:center;gap:10px;text-decoration:none;color:var(--ink);}
.brand-name{font-weight:700;font-size:14.5px;letter-spacing:0.2px;}
.brand-sub{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--ink-faint);letter-spacing:0.5px;text-transform:uppercase;margin-top:2px;}
nav{display:flex;gap:26px;}
.navlink{font-size:13.5px;text-decoration:none;color:var(--ink-soft);font-weight:500;}
.navlink:hover{color:var(--blue);}
.navlink.active{color:var(--blue);}
@media(max-width:560px){ nav{gap:16px;} .navlink{font-size:12.5px;} }

/* ---------------- PAGE HEADER (non-home pages) ---------------- */
.page-header{padding:48px 0 8px;}
.page-header .eyebrow{margin-bottom:8px;}

/* ---------------- HERO ---------------- */
.hero{padding:64px 0 56px;}
.hero-grid{display:grid;grid-template-columns:1.3fr 0.9fr;gap:40px;align-items:center;}
@media(max-width:760px){ .hero-grid{grid-template-columns:1fr;} }
.hero-photo-wrap{position:relative;}
.hero-photo-frame{
  position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 12px 32px rgba(20,24,28,0.12); background:var(--panel);
}
.hero-photo-frame img{display:block;width:100%;height:auto;}
.hero-photo-corner{
  position:absolute;width:22px;height:22px;border-color:var(--blue);border-style:solid;
}
.hero-photo-corner.tl{top:-1px;left:-1px;border-width:3px 0 0 3px;border-top-left-radius:6px;}
.hero-photo-corner.br{bottom:-1px;right:-1px;border-width:0 3px 3px 0;border-bottom-right-radius:6px;}
.hero-photo-tag{
  position:absolute;bottom:14px;left:14px;background:rgba(20,24,28,0.72);color:#fff;
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:6px 10px;border-radius:6px;
  letter-spacing:0.4px;backdrop-filter:blur(4px);
}
.drawing-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;font-family:'IBM Plex Mono',monospace;
  font-size:11px;color:var(--ink-faint);letter-spacing:0.6px;text-transform:uppercase;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:10px 0; margin-bottom:36px;
}
.drawing-meta span b{color:var(--ink-soft);font-weight:600;}
h1{
  font-size:clamp(32px, 4.6vw, 50px); line-height:1.08; font-weight:700; margin:0 0 18px;
  letter-spacing:-0.5px;
}
.role-line{font-size:18px; color:var(--ink-soft); max-width:52ch; margin:0 0 28px;}
.role-line b{color:var(--ink);font-weight:600;}
.facts-row{display:flex;flex-wrap:wrap;gap:10px;}
.fact-chip{
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;padding:6px 12px;border-radius:20px;
  background:var(--panel);border:1px solid var(--line);color:var(--ink-soft);
}

/* ---------------- SYSTEM DIAGRAM (signature element) ---------------- */
.diagram-section{padding:16px 0 60px;}
.diagram-label{
  font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--ink-faint);
  text-transform:uppercase;letter-spacing:0.6px;margin-bottom:18px;
}
.diagram{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 24px;overflow-x:auto;
}
.diagram-flow{
  display:grid;grid-template-columns:repeat(4, minmax(140px,1fr));gap:0;align-items:stretch;min-width:640px;
}
.diagram-col{display:flex;flex-direction:column;gap:10px;position:relative;padding:0 14px;}
.diagram-col:not(:last-child)::after{
  content:'';position:absolute;top:50%;right:-1px;width:14px;height:1px;background:var(--line);
}
.diagram-col-title{
  font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--blue);text-transform:uppercase;
  letter-spacing:0.6px;margin-bottom:2px;
}
.diagram-node{
  background:var(--blue-tint);border:1px solid #CBD8EE;border-radius:7px;padding:9px 11px;
  font-size:12.5px;font-weight:500;color:var(--ink);
}
.diagram-node.copper{background:#FBF0E7;border-color:#EBC7A6;}
.diagram-node small{display:block;font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--ink-faint);margin-top:2px;font-weight:400;}
@media(max-width:700px){ .diagram-flow{grid-template-columns:repeat(4, minmax(150px,1fr));} }

/* ---------------- SECTIONS ---------------- */
section{padding:56px 0;border-top:1px solid var(--line);}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--copper);
  text-transform:uppercase;letter-spacing:0.6px;margin-bottom:10px;
}
h2{font-size:clamp(24px,3.4vw,32px);font-weight:700;margin:0 0 14px;letter-spacing:-0.3px;}
.section-intro{color:var(--ink-soft);max-width:62ch;margin:0 0 36px;font-size:15.5px;}

/* ---------------- QUICK LINKS (home page) ---------------- */
.quicklink-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:14px;}
@media(max-width:700px){ .quicklink-grid{grid-template-columns:1fr;} }
.quicklink-card{
  display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 20px 22px;text-decoration:none;color:var(--ink);
  transition:border-color 0.15s ease, transform 0.15s ease;
}
.quicklink-card:hover{border-color:var(--blue);transform:translateY(-2px);}
.quicklink-title{font-weight:700;font-size:15.5px;margin-bottom:6px;color:var(--blue);}
.quicklink-card p{margin:0;font-size:13.5px;color:var(--ink-soft);line-height:1.5;}

.cta-band{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
}
.cta-band h3{margin:0 0 4px;font-size:19px;}
.cta-band p{margin:0;color:var(--ink-soft);font-size:14px;}
.cta-btn{
  font-family:'IBM Plex Mono',monospace;font-size:13px;text-decoration:none;white-space:nowrap;
  color:#fff;background:var(--blue);border-radius:20px;padding:10px 20px;font-weight:500;
}
.cta-btn:hover{opacity:0.9;}

/* ---------------- FEATURED WORK / PROJECTS ---------------- */
.case-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.case-card + .case-card{margin-top:22px;}
.case-head{padding:28px 28px 22px;border-bottom:1px solid var(--line);}
.case-title-row{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;}
.case-title{font-size:22px;font-weight:700;margin:0 0 6px;}
.case-tagline{color:var(--ink-soft);font-size:14.5px;margin:0;max-width:56ch;}
.case-link{
  font-family:'IBM Plex Mono',monospace;font-size:12px;white-space:nowrap;text-decoration:none;
  color:var(--blue);border:1px solid var(--blue);border-radius:20px;padding:7px 14px;font-weight:500;
}
.case-link:hover{background:var(--blue);color:#fff;}
.case-body{padding:26px 28px 30px;}
.feature-groups{display:grid;grid-template-columns:1fr 1fr;gap:22px 28px;margin-bottom:28px;}
@media(max-width:640px){ .feature-groups{grid-template-columns:1fr;} }
.feature-group-title{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--blue);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:8px;}
.feature-group ul{margin:0;padding:0;list-style:none;}
.feature-group li{
  font-size:13.5px;color:var(--ink-soft);padding:5px 0 5px 16px;position:relative;line-height:1.45;
}
.feature-group li::before{content:'—';position:absolute;left:0;color:var(--ink-faint);}
.stack-chips{display:flex;flex-wrap:wrap;gap:8px;}
.stack-chip{
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;padding:5px 11px;border-radius:6px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink-soft);
}
.more-projects-note{
  font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--ink-faint);
  border:1px dashed var(--line);border-radius:var(--radius);padding:16px 20px;margin-top:22px;
}

/* ---------------- SCREENSHOT GALLERY ---------------- */
.screenshot-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:16px;margin:28px 0 32px;}
@media(max-width:560px){ .screenshot-grid{grid-template-columns:1fr;} }
.screenshot-item{border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--bg);box-shadow:0 4px 14px rgba(20,24,28,0.06);}
.screenshot-item img{display:block;width:100%;height:auto;}
.screenshot-caption{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--ink-faint);padding:9px 12px;text-transform:uppercase;letter-spacing:0.4px;border-top:1px solid var(--line);}

/* ---------------- STACK / SKILLS ---------------- */
.stack-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
@media(max-width:640px){ .stack-grid{grid-template-columns:1fr;} }
.stack-block{background:var(--panel);padding:22px 24px;}
.stack-block-title{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--copper);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:12px;}
.stack-block p{margin:0;font-size:13.5px;color:var(--ink-soft);line-height:1.7;}

/* ---------------- ABOUT ---------------- */
.about-text{max-width:64ch;font-size:15.5px;color:var(--ink-soft);}
.about-text p{margin:0 0 16px;}
.about-text b{color:var(--ink);}
.about-grid{display:grid;grid-template-columns:0.8fr 1.2fr;gap:36px;align-items:start;}
@media(max-width:700px){ .about-grid{grid-template-columns:1fr;} }
.about-photo{border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:0 10px 26px rgba(20,24,28,0.1);}
.about-photo img{display:block;width:100%;height:auto;}

/* ---------------- CONTACT FORM ---------------- */
.contact-form{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin-bottom:28px;}
.contact-form label{display:block;font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:6px;}
.contact-form .field{margin-bottom:18px;}
.contact-form input, .contact-form textarea{
  width:100%;font-family:'IBM Plex Sans',sans-serif;font-size:14.5px;color:var(--ink);
  background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:11px 13px;
  box-sizing:border-box;
}
.contact-form input:focus, .contact-form textarea:focus{outline:2px solid var(--blue);outline-offset:1px;border-color:var(--blue);}
.contact-form textarea{resize:vertical;min-height:110px;font-family:inherit;}
.form-submit-btn{
  font-family:'IBM Plex Mono',monospace;font-size:13px;color:#fff;background:var(--blue);
  border:none;border-radius:20px;padding:11px 22px;font-weight:500;cursor:pointer;
}
.form-submit-btn:hover{opacity:0.9;}
.form-submit-btn:disabled{opacity:0.6;cursor:not-allowed;}
.form-status{font-size:13px;margin-top:12px;display:none;}
.form-status.show{display:block;}
.form-status.ok{color:#2E7D46;}
.form-status.error{color:#B3261E;}
.contact-divider{
  display:flex;align-items:center;gap:14px;margin:0 0 28px;
  font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:0.5px;
}
.contact-divider::before, .contact-divider::after{content:'';flex:1;height:1px;background:var(--line);}

/* ---------------- CONTACT CARDS ---------------- */
.contact-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:12px;}
@media(max-width:560px){ .contact-grid{grid-template-columns:1fr;} }
.contact-card{
  display:flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:var(--ink);
  transition:border-color 0.15s ease, transform 0.15s ease;
}
.contact-card:hover{border-color:var(--blue);transform:translateY(-1px);}
.contact-icon{
  width:38px;height:38px;border-radius:8px;background:var(--blue-tint);display:flex;
  align-items:center;justify-content:center;font-size:16px;flex-shrink:0;
}
.contact-label{font-family:'IBM Plex Mono',monospace;font-size:10px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:2px;}
.contact-value{font-size:14px;font-weight:500;word-break:break-word;}

footer{
  padding:28px 0 40px;border-top:1px solid var(--line);
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--ink-faint);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
}

/* Scroll reveal — subtle, respects reduced motion via the rule above */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 0.5s ease, transform 0.5s ease;}
.reveal.in{opacity:1;transform:translateY(0);}