/* ============================================================
   BRIVE DEVELOPMENT — design tokens
   Theme: schematic / build-log. Dark ink canvas, phosphor-trace
   accent, CAD-viewport corner brackets, terminal signature.
   ============================================================ */

:root{
  --ink:        #0a0e12;
  --ink-soft:   #121922;
  --ink-card:   #161f29;
  --paper:      #f1ede2;
  --paper-line: #d8d2c1;
  --trace:      #46e0b0;
  --trace-dim:  #2c8f70;
  --signal:     #ffb454;
  --text:       #e9eef3;
  --text-on-paper: #14181d;
  --muted:      #8b98a6;
  --muted-on-paper: #5c6470;
  --line:       rgba(233,238,243,0.12);
  --line-strong:rgba(233,238,243,0.22);
  --radius: 2px;
  --maxw: 1120px;
  --font-display: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; line-height:1.15; margin:0 0 .5em; letter-spacing:-0.01em; }
p{ margin:0 0 1em; color:var(--muted); }
.on-paper p{ color:var(--muted-on-paper); }

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

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.section{ padding:96px 0; }
.section--tight{ padding:64px 0; }
.on-paper{ background:var(--paper); color:var(--text-on-paper); }
.on-paper h1,.on-paper h2,.on-paper h3,.on-paper h4{ color:var(--text-on-paper); }

/* eyebrow / mono labels */
.eyebrow{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--trace);
  letter-spacing:.02em;
  display:inline-flex;
  gap:8px;
  align-items:center;
  margin-bottom:14px;
}
.eyebrow::before{ content:"//"; color:var(--muted); }
.on-paper .eyebrow::before{ color:var(--muted-on-paper); }

/* corner-bracket frame, CAD viewport motif */
.frame{
  position:relative;
  border:1px solid var(--line);
}
.frame::before,.frame::after,
.frame > .c2::before,.frame > .c2::after{
  content:"";
  position:absolute;
  width:14px; height:14px;
  border:1px solid var(--trace);
  opacity:.9;
}
.frame::before{ top:-1px; left:-1px; border-right:none; border-bottom:none; }
.frame::after{ bottom:-1px; right:-1px; border-left:none; border-top:none; }

/* ---------------- header / nav ---------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,14,18,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{ display:flex; align-items:center; justify-content:space-between; padding:18px 24px; max-width:var(--maxw); margin:0 auto; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-mono); font-size:17px; letter-spacing:.02em; color:var(--text); }
.brand-mark{ width:20px; height:20px; flex:0 0 auto; }
.brand small{ color:var(--trace); }
.nav-links{ display:flex; gap:32px; align-items:center; }
.nav-links a{
  font-family:var(--font-mono); font-size:14px; color:var(--muted);
  position:relative; padding:4px 0;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{ color:var(--text); }
.nav-links a[aria-current="page"]::after{
  content:""; position:absolute; left:0; right:0; bottom:-6px; height:2px; background:var(--trace);
}
.nav-cta{
  font-family:var(--font-mono); font-size:13px; color:var(--ink) !important;
  background:var(--trace); padding:9px 16px; border:1px solid var(--trace);
}
.nav-cta:hover{ background:transparent; color:var(--trace) !important; }
.nav-toggle{ display:none; background:none; border:1px solid var(--line-strong); color:var(--text); width:40px;height:40px; font-family:var(--font-mono); }

@media (max-width: 820px){
  .nav-links{
    position:fixed; inset:64px 0 0 0; background:var(--ink);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:8px 24px; border-top:1px solid var(--line);
    transform:translateY(-8px); opacity:0; pointer-events:none; transition:opacity .18s ease, transform .18s ease;
  }
  .nav-links.is-open{ opacity:1; pointer-events:auto; transform:translateY(0); }
  .nav-links a{ width:100%; padding:16px 0; border-bottom:1px solid var(--line); }
  .nav-cta{ margin-top:12px; display:inline-block; }
  .nav-toggle{ display:block; }
}

/* ---------------- buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:14px;
  padding:13px 22px; border:1px solid var(--line-strong);
  transition:border-color .15s ease, background .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:hover{ border-color:var(--trace); color:var(--trace); }
.btn-primary{ background:var(--trace); border-color:var(--trace); color:var(--ink); }
.btn-primary:hover{ background:transparent; color:var(--trace); }
.btn-row{ display:flex; gap:16px; flex-wrap:wrap; }

/* ---------------- hero + terminal signature ---------------- */
.hero{ padding:88px 0 72px; }
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; }
@media (max-width:900px){ .hero-grid{ grid-template-columns:1fr; } }
.hero h1{ font-size:clamp(34px,5vw,56px); }
.hero .lede{ font-size:18px; max-width:46ch; }

.terminal{
  background:var(--ink-soft); border:1px solid var(--line-strong);
  font-family:var(--font-mono); font-size:13px; overflow:hidden;
}
.terminal-bar{
  display:flex; align-items:center; gap:8px; padding:10px 14px;
  border-bottom:1px solid var(--line); color:var(--muted);
}
.terminal-bar span{ width:9px; height:9px; border-radius:50%; background:var(--line-strong); display:inline-block; }
.terminal-body{ padding:20px; min-height:220px; color:var(--text); }
.terminal-line{ opacity:0; animation:tline .4s ease forwards; white-space:pre-wrap; }
.terminal-line .ok{ color:var(--trace); }
.terminal-line .dim{ color:var(--muted); }
@keyframes tline{ to{ opacity:1; } }
.cursor{ display:inline-block; width:8px; height:14px; background:var(--trace); vertical-align:-2px; animation:blink 1s steps(1) infinite; }
@keyframes blink{ 50%{ opacity:0; } }

/* ---------------- status strip ---------------- */
.status-strip{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.status-strip .wrap{ display:flex; flex-wrap:wrap; gap:0; }
.status-item{
  font-family:var(--font-mono); font-size:13.5px; color:var(--muted);
  padding:18px 28px 18px 0; margin-right:28px; border-right:1px solid var(--line);
  display:flex; gap:10px; align-items:baseline;
}
.status-item:last-child{ border-right:none; }
.status-item b{ font-family:var(--font-display); font-size:20px; color:var(--text); font-weight:600; }

/* ---------------- grids / cards ---------------- */
.grid{ display:grid; gap:24px; }
.grid--3{ grid-template-columns:repeat(3,1fr); }
.grid--2{ grid-template-columns:repeat(2,1fr); }
@media (max-width:900px){ .grid--3,.grid--2{ grid-template-columns:1fr; } }

.card{
  background:var(--ink-card); border:1px solid var(--line);
  padding:28px; transition:border-color .15s ease, transform .15s ease;
}
.card:hover{ border-color:var(--line-strong); transform:translateY(-2px); }
.card h3{ font-size:19px; margin-bottom:10px; }
.card .tag-row{ display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
.tag{
  font-family:var(--font-mono); font-size:11.5px; color:var(--trace);
  border:1px solid var(--trace-dim); padding:3px 8px;
}
.card-link{ font-family:var(--font-mono); font-size:13px; color:var(--trace); display:inline-flex; gap:6px; margin-top:16px; }

/* section header row */
.section-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:24px; margin-bottom:44px; flex-wrap:wrap; }
.section-head h2{ font-size:clamp(24px,3.4vw,34px); margin:0; max-width:36ch; }
.section-head .btn{ flex:0 0 auto; }

/* process (real sequence => numbering is justified) */
.process{ display:grid; grid-template-columns:repeat(5,1fr); gap:0; border:1px solid var(--line); }
.process-step{ padding:26px 20px; border-right:1px solid var(--line); }
.process-step:last-child{ border-right:none; }
.process-step .num{ font-family:var(--font-mono); color:var(--trace); font-size:13px; }
.process-step h4{ font-size:16px; margin:10px 0 8px; }
.process-step p{ font-size:13.5px; margin:0; }
@media (max-width:900px){
  .process{ grid-template-columns:1fr 1fr; }
  .process-step{ border-bottom:1px solid var(--line); }
}
@media (max-width:560px){ .process{ grid-template-columns:1fr; } }

/* CTA band */
.cta-band{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:linear-gradient(180deg, rgba(70,224,176,.05), transparent);
}
.cta-band .wrap{ text-align:center; padding:80px 24px; }
.cta-band h2{ font-size:clamp(26px,4vw,40px); max-width:20ch; margin:0 auto 16px; }
.cta-band p{ max-width:52ch; margin:0 auto 32px; }
.cta-band .btn-row{ justify-content:center; }

/* footer */
.site-footer{ border-top:1px solid var(--line); padding:56px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:32px; margin-bottom:40px; }
@media (max-width:760px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
.footer-grid h4{ font-family:var(--font-mono); font-size:13px; color:var(--muted); margin-bottom:16px; font-weight:500; }
.footer-grid a{ display:block; font-size:14px; color:var(--text); padding:6px 0; }
.footer-grid a:hover{ color:var(--trace); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
  font-family:var(--font-mono); font-size:12.5px; color:var(--muted);
  padding-top:24px; border-top:1px solid var(--line);
}
.build-tag{ color:var(--trace); }

/* breadcrumb */
.breadcrumb{ font-family:var(--font-mono); font-size:12.5px; color:var(--muted); margin-bottom:18px; }
.breadcrumb a:hover{ color:var(--trace); }

/* page header (non-home pages) */
.page-header{ padding:56px 0 40px; border-bottom:1px solid var(--line); }
.page-header h1{ font-size:clamp(30px,5vw,46px); max-width:22ch; }
.page-header .lede{ max-width:60ch; font-size:17px; }

/* services list detail */
.service-detail{ display:grid; grid-template-columns:220px 1fr; gap:36px; padding:40px 0; border-bottom:1px solid var(--line); }
.service-detail:last-child{ border-bottom:none; }
@media (max-width:760px){ .service-detail{ grid-template-columns:1fr; gap:16px; } }
.service-detail .idx{ font-family:var(--font-mono); color:var(--trace); font-size:14px; }
.service-detail h3{ font-size:22px; margin:8px 0 12px; }
.service-detail ul{ margin-top:14px; display:grid; gap:8px; }
.service-detail li{ font-size:14px; color:var(--muted); padding-left:18px; position:relative; }
.service-detail li::before{ content:"—"; position:absolute; left:0; color:var(--trace); }

/* portfolio */
.case-thumb{ aspect-ratio:16/10; background:var(--ink-soft); border-bottom:1px solid var(--line); position:relative; overflow:hidden; }
.case-card{ padding:0; overflow:hidden; }
.case-card .card-body{ padding:24px 28px 28px; }
.case-meta{ font-family:var(--font-mono); font-size:12px; color:var(--muted); margin-bottom:10px; }

/* blog */
.post-card{ display:grid; grid-template-columns:140px 1fr; gap:24px; padding:28px 0; border-bottom:1px solid var(--line); }
@media (max-width:640px){ .post-card{ grid-template-columns:1fr; gap:10px; } }
.post-date{ font-family:var(--font-mono); font-size:12.5px; color:var(--trace); }
.post-card h3{ font-size:20px; margin:6px 0 8px; }
article.prose h2{ font-size:26px; margin-top:2.2em; }
article.prose h3{ font-size:20px; margin-top:1.8em; }
article.prose p{ color:var(--text); max-width:70ch; }
article.prose ul,article.prose ol{ color:var(--text); max-width:70ch; margin:0 0 1.2em 1.2em; }
article.prose li{ margin-bottom:.5em; }
article.prose code{ font-family:var(--font-mono); background:var(--ink-soft); padding:2px 6px; font-size:.9em; color:var(--trace); }
article.prose pre{ background:var(--ink-soft); border:1px solid var(--line); padding:18px; overflow-x:auto; font-family:var(--font-mono); font-size:13px; }
article.prose blockquote{ border-left:2px solid var(--trace); margin:1.6em 0; padding-left:20px; color:var(--muted); font-style:italic; }

/* contact */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; }
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }
.field{ margin-bottom:20px; }
.field label{ display:block; font-family:var(--font-mono); font-size:12.5px; color:var(--muted); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; background:var(--ink-soft); border:1px solid var(--line-strong);
  color:var(--text); padding:13px 14px; font-family:var(--font-body); font-size:14.5px;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--trace); outline:none; }
.field textarea{ resize:vertical; min-height:120px; }
.contact-info dt{ font-family:var(--font-mono); font-size:12px; color:var(--muted); margin-bottom:4px; }
.contact-info dd{ margin:0 0 24px; font-size:15.5px; }
.contact-info dd a:hover{ color:var(--trace); }

/* skip link */
.skip-link{
  position:absolute; left:-9999px; top:0; background:var(--trace); color:var(--ink);
  padding:10px 16px; font-family:var(--font-mono); z-index:100;
}
.skip-link:focus{ left:16px; top:16px; }