/* =============================================================
   KORVA — AI Laboratory Instrument Console
   Design system for an AI studio / machine learning consultancy.

   Thesis: "A laboratory instrument console — precision-measured
   intelligence. Every section reads like a readout panel,
   the hero is a terminal prompt, and the projects are
   benchmark result cards."

   Materials: dark graphite, phosphor amber, glass panel, scan-line
   Motion:    scan-line wipe / prompt-blink / data-stream
   Grammar:   instrument console — readout panels, benchmark grids
   ============================================================= */

:root{
  /* AI lab palette — graphite + amber signal + pass/fail */
  --bg:          #0F1318;
  --bg-2:        #161B22;
  --bg-3:        #1C2128;
  --surface:     #21262D;
  --surface-2:   #282E36;
  --border:      #30363D;
  --border-2:    #484F58;
  --ink:         #E6EDF3;
  --ink-2:       #B1BAC4;
  --ink-3:       #8B949E;
  --amber:       #FFB020;
  --amber-2:     #FFC44D;
  --amber-dim:   #FFB02033;
  --pass:        #3FB950;
  --fail:        #F85149;
  --cyan:        #58A6FF;
  --violet:      #BC8CFF;
  --font-display:'Sora', sans-serif;
  --font-body:   'Inter', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --ease:        cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--amber);text-decoration:none}
a:hover{text-decoration:underline}

/* --- UTILITIES --- */
.container{max-width:1200px;margin:0 auto;padding:0 clamp(1rem,3vw,2.5rem)}
.kicker{
  display:inline-block;
  font-family:var(--font-mono);font-size:.72rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--amber);
  margin-bottom:.5rem;
}
.eyebrow{
  font-family:var(--font-mono);font-size:.7rem;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);
}
.link{
  font-family:var(--font-mono);font-size:.85rem;font-weight:600;
  color:var(--amber);
}
.link:hover{text-decoration:underline}
.spacer{flex:1}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}

/* --- STATUS BAR --- */
.statusbar{
  background:var(--bg-2);
  border-bottom:1px solid var(--border);
  padding:.5rem 0;
  font-family:var(--font-mono);font-size:.72rem;color:var(--ink-3);
  position:sticky;top:0;z-index:100;
}
.statusbar .container{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}
.statusbar .live{
  display:flex;align-items:center;gap:.5rem;
  color:var(--pass);font-weight:600;
}
.statusbar .live .dot{
  width:6px;height:6px;border-radius:50%;background:var(--pass);
  animation:pulse-live 2s ease infinite;
}
@keyframes pulse-live{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(63,185,80,.4)}
  50%{opacity:.7;box-shadow:0 0 0 6px rgba(63,185,80,0)}
}
.statusbar a{color:var(--ink-2)}

/* --- SITEHEAD --- */
.sitehead{
  background:var(--bg);
  border-bottom:1px solid var(--border);
  padding:.8rem 0;
  position:sticky;top:33px;z-index:99;
}
.sitehead .container{display:flex;align-items:center;gap:2rem}
.mark{
  font-family:var(--font-display);font-size:1.3rem;font-weight:800;
  color:var(--ink);letter-spacing:.02em;
  display:flex;align-items:center;gap:.5rem;
}
.mark span{color:var(--amber)}
.mark .glyph{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;
  background:var(--amber);color:var(--bg);
  font-size:.9rem;border-radius:4px;
}
#mainnav{display:flex;gap:1.5rem;flex:1}
#mainnav a{
  font-family:var(--font-mono);font-size:.78rem;font-weight:500;
  color:var(--ink-3);letter-spacing:.03em;
  transition:color .2s var(--ease);
}
#mainnav a:hover,#mainnav a.active{color:var(--amber);text-decoration:none}
.cta{
  font-family:var(--font-mono);font-size:.78rem;font-weight:600;
  padding:.5rem 1.2rem;
  background:var(--amber);color:var(--bg);
  border-radius:4px;transition:all .2s var(--ease);
}
.cta:hover{background:var(--amber-2);text-decoration:none}
.burger{display:none;background:none;border:none;color:var(--ink);font-size:1.5rem;cursor:pointer}

/* --- BUTTONS --- */
.btn-primary{
  display:inline-block;
  font-family:var(--font-mono);font-size:.85rem;font-weight:600;
  padding:.75rem 1.8rem;
  background:var(--amber);color:var(--bg);
  border-radius:4px;border:none;cursor:pointer;
  transition:all .2s var(--ease);text-decoration:none;
}
.btn-primary:hover{background:var(--amber-2);text-decoration:none}
.btn-ghost{
  display:inline-block;
  font-family:var(--font-mono);font-size:.85rem;font-weight:600;
  padding:.75rem 1.8rem;
  background:transparent;color:var(--ink);
  border:1px solid var(--border-2);border-radius:4px;
  transition:all .2s var(--ease);text-decoration:none;
}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber);text-decoration:none}
.btn-wide{width:100%;text-align:center}

/* --- HERO TERMINAL --- */
.hero-terminal{
  padding:clamp(3rem,8vw,6rem) 0;
  background:
    repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(255,176,32,.02) 2px,rgba(255,176,32,.02) 4px),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%);
  position:relative;overflow:hidden;
}
.hero-terminal::before{
  content:'';position:absolute;top:0;left:0;right:0;bottom:0;
  background:repeating-linear-gradient(0deg,transparent,transparent 1px,rgba(255,176,32,.03) 1px,rgba(255,176,32,.03) 2px);
  pointer-events:none;
}
.hero-terminal .container{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;position:relative;z-index:1}
.hero-terminal h1{
  font-family:var(--font-display);font-size:clamp(2rem,4.5vw,3.2rem);
  font-weight:800;line-height:1.1;margin:1rem 0;
}
.hero-terminal h1 span{color:var(--amber)}
.hero-terminal .lead{font-size:1.05rem;color:var(--ink-2);margin-bottom:1.5rem}
.hero-terminal .prompt-box{
  background:var(--bg-2);border:1px solid var(--border);
  border-radius:8px;padding:1.5rem;font-family:var(--font-mono);
  font-size:.82rem;line-height:1.8;
}
.hero-terminal .prompt-box .line{color:var(--ink-3)}
.hero-terminal .prompt-box .cursor{
  display:inline-block;width:8px;height:1.1em;
  background:var(--amber);vertical-align:text-bottom;
  animation:blink 1.2s step-end infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}
.hero-tags{display:flex;gap:.5rem;flex-wrap:wrap}
.hero-tags .tag{
  font-family:var(--font-mono);font-size:.7rem;font-weight:600;
  padding:.3rem .7rem;
  border:1px solid var(--border);border-radius:100px;
  color:var(--ink-3);
}
.hero-tags .tag--amber{border-color:var(--amber-dim);color:var(--amber)}
.hero-img{
  border:1px solid var(--border);border-radius:8px;
  overflow:hidden;aspect-ratio:4/3;
}
.hero-img img{width:100%;height:100%;object-fit:cover}

/* --- EVAL TICKER --- */
.eval-ticker{
  background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:.8rem 0;overflow:hidden;
}
.ticker-track{
  display:flex;gap:3rem;
  font-family:var(--font-mono);font-size:.75rem;
  color:var(--ink-3);white-space:nowrap;
  animation:ticker 30s linear infinite;
}
.ticker-track .pass{color:var(--pass)}
.ticker-track .fail{color:var(--fail)}
.ticker-track .amber{color:var(--amber)}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* --- READOUTS --- */
.readouts{
  background:var(--bg-2);border-bottom:1px solid var(--border);
  padding:2rem 0;
}
.readouts .container{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.readouts .cell{
  text-align:center;padding:1.2rem;
  background:var(--bg-3);border:1px solid var(--border);border-radius:6px;
}
.readouts .per{
  display:block;
  font-family:var(--font-display);font-size:2.2rem;font-weight:800;
  color:var(--amber);
}
.readouts .label{
  display:block;font-family:var(--font-mono);font-size:.7rem;
  color:var(--ink-3);letter-spacing:.05em;margin-top:.3rem;
}

/* --- SECTION --- */
.section{padding:clamp(3rem,6vw,5rem) 0}
.section h2{
  font-family:var(--font-display);font-size:clamp(1.6rem,3.5vw,2.4rem);
  font-weight:800;line-height:1.15;margin-bottom:2rem;
}
.section--surface{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section--wash{background:var(--bg-3)}

/* --- ARCHITECTURE GRID --- */
.arch-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:1rem;
}
.arch-grid .span-4{grid-column:span 4}
.arch-grid .span-6{grid-column:span 6}
.arch-grid .span-8{grid-column:span 8}
.arch-card{
  background:var(--bg-2);border:1px solid var(--border);border-radius:6px;
  padding:1.5rem;
}
.arch-card h3{
  font-family:var(--font-display);font-size:1.1rem;font-weight:700;
  margin-bottom:.5rem;
}
.arch-card p{color:var(--ink-2);font-size:.9rem}
.arch-card .tag{
  display:inline-block;font-family:var(--font-mono);font-size:.65rem;
  padding:.2rem .5rem;background:var(--amber-dim);color:var(--amber);
  border-radius:3px;margin-top:.5rem;
}

/* --- PROJECT CARDS --- */
.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.project-card{
  background:var(--bg-2);border:1px solid var(--border);border-radius:6px;
  overflow:hidden;transition:border-color .2s var(--ease);
}
.project-card:hover{border-color:var(--amber)}
.project-card .media{aspect-ratio:16/10;overflow:hidden}
.project-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.project-card:hover .media img{transform:scale(1.04)}
.project-card .body{padding:1.2rem}
.project-card .body h3{
  font-family:var(--font-display);font-size:1rem;font-weight:700;
  margin-bottom:.4rem;
}
.project-card .body p{font-size:.85rem;color:var(--ink-2);margin-bottom:.8rem}
.project-card .meta{
  display:flex;gap:.5rem;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:.65rem;color:var(--ink-3);
}
.project-card .meta span{
  padding:.15rem .4rem;background:var(--surface);border-radius:3px;
}

/* --- BENCHMARK TABLE --- */
.bench-table{
  width:100%;border-collapse:collapse;
  font-family:var(--font-mono);font-size:.82rem;
}
.bench-table th{
  text-align:left;padding:.8rem 1rem;
  background:var(--bg-2);border-bottom:2px solid var(--border);
  color:var(--ink-3);font-weight:600;font-size:.7rem;
  letter-spacing:.06em;text-transform:uppercase;
}
.bench-table td{
  padding:.8rem 1rem;border-bottom:1px solid var(--border);
  color:var(--ink-2);
}
.bench-table tr:hover td{background:var(--bg-2)}
.bench-table .pass{color:var(--pass);font-weight:600}
.bench-table .amber{color:var(--amber);font-weight:600}
.bench-table .fail{color:var(--fail);font-weight:600}

/* --- SERVICES GRID --- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.service-card{
  background:var(--bg-2);border:1px solid var(--border);border-radius:6px;
  padding:1.5rem;position:relative;overflow:hidden;
}
.service-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--amber);
}
.service-card h3{
  font-family:var(--font-display);font-size:1.05rem;font-weight:700;
  margin:.5rem 0;
}
.service-card p{font-size:.88rem;color:var(--ink-2)}
.service-card .icon{
  width:40px;height:40px;
  background:var(--amber-dim);border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;
}

/* --- FEATURE SPLIT --- */
.feature{
  display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;
}
.feature .frame{
  border:1px solid var(--border);border-radius:6px;overflow:hidden;
}
.feature .frame img{width:100%;height:100%;object-fit:cover}
.feature h2{margin-bottom:1rem}
.feature p{color:var(--ink-2);margin-bottom:1rem}

/* --- TESTIMONIALS --- */
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.testimonial{
  background:var(--bg-2);border:1px solid var(--border);border-radius:6px;
  padding:1.5rem;
}
.testimonial .stars{color:var(--amber);font-size:.9rem;margin-bottom:.5rem}
.testimonial p{font-size:.9rem;color:var(--ink-2);margin-bottom:.8rem;font-style:italic}
.testimonial .label{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-3)}

/* --- PRICING --- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.plan{
  background:var(--bg-2);border:1px solid var(--border);border-radius:6px;
  padding:2rem 1.5rem;text-align:center;
}
.plan--featured{border-color:var(--amber);position:relative}
.plan--featured::before{
  content:'MOST POPULAR';position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  font-family:var(--font-mono);font-size:.65rem;font-weight:700;
  padding:.2rem .8rem;background:var(--amber);color:var(--bg);
  border-radius:100px;letter-spacing:.08em;
}
.plan .eyebrow{display:block;margin-bottom:.5rem}
.plan .price{
  display:block;font-family:var(--font-display);font-size:2.5rem;font-weight:800;
  color:var(--ink);margin:.5rem 0;
}
.plan .per{display:block;font-family:var(--font-mono);font-size:.72rem;color:var(--ink-3);margin-bottom:1.2rem}
.plan ul{list-style:none;text-align:left;margin-bottom:1.5rem}
.plan li{
  padding:.4rem 0;font-size:.88rem;color:var(--ink-2);
  border-bottom:1px solid var(--border);
}
.plan li::before{content:'✓ ';color:var(--pass);font-weight:700}

/* --- FAQ --- */
.faq{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{
  width:100%;background:none;border:none;
  padding:1.2rem 0;text-align:left;
  font-family:var(--font-display);font-size:1rem;font-weight:600;
  color:var(--ink);cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;
}
.faq-q .icon{font-size:1.3rem;color:var(--amber);transition:transform .2s var(--ease)}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
  font-size:.9rem;color:var(--ink-2);line-height:1.7;
}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding-bottom:1.2rem}

/* --- CTA BAND --- */
.cta-band{
  background:linear-gradient(135deg,var(--bg-2) 0%,var(--bg-3) 100%);
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:clamp(3rem,6vw,5rem) 0;
}
.cta-band .container{display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap}
.cta-band h2{
  font-family:var(--font-display);font-size:clamp(1.6rem,3vw,2.2rem);
  font-weight:800;margin:.5rem 0;
}
.cta-band p{color:var(--ink-2);max-width:500px}
.cta-band .actions{display:flex;gap:1rem;flex-wrap:wrap}

/* --- CONTACT GRID --- */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:3rem;align-items:start}
.field{margin-bottom:1rem}
.field label{
  display:block;font-family:var(--font-mono);font-size:.75rem;font-weight:600;
  color:var(--ink-3);letter-spacing:.04em;margin-bottom:.3rem;
}
.field input,.field select,.field textarea{
  width:100%;padding:.7rem 1rem;
  background:var(--bg-2);border:1px solid var(--border);
  border-radius:4px;color:var(--ink);
  font-family:var(--font-body);font-size:.9rem;
  transition:border-color .2s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber)}
.field textarea{resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form-ok{
  margin-top:1rem;padding:.8rem;
  background:rgba(63,185,80,.1);border:1px solid var(--pass);
  border-radius:4px;color:var(--pass);font-family:var(--font-mono);font-size:.85rem;
}
.form-err{
  margin-top:1rem;padding:.8rem;
  background:rgba(248,81,73,.1);border:1px solid var(--fail);
  border-radius:4px;color:var(--fail);font-family:var(--font-mono);font-size:.85rem;
}
.info-card{
  background:var(--bg-2);border:1px solid var(--border);border-radius:6px;
  padding:1.2rem;
}
.info-card h4{
  font-family:var(--font-display);font-size:.95rem;font-weight:700;
  margin-bottom:.5rem;
}
.info-card p{font-size:.85rem;color:var(--ink-2)}

/* --- PAGE HEAD --- */
.page-head{
  padding:clamp(4rem,8vw,6rem) 0 clamp(2rem,4vw,3rem);
  border-bottom:1px solid var(--border);
}
.page-head .crumb{
  font-family:var(--font-mono);font-size:.72rem;color:var(--ink-3);
  display:block;margin-bottom:.8rem;
}
.page-head .crumb a{color:var(--ink-3)}
.page-head .crumb a:hover{color:var(--amber)}
.page-head h1{
  font-family:var(--font-display);font-size:clamp(2rem,5vw,3.2rem);
  font-weight:800;line-height:1.1;margin-bottom:.8rem;
}
.page-head p{font-size:1.05rem;color:var(--ink-2);max-width:600px}

/* --- FOOTER --- */
.footer{
  background:var(--bg-2);border-top:1px solid var(--border);
  padding:clamp(2rem,5vw,4rem) 0 1.5rem;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.footer .brand{
  font-family:var(--font-display);font-size:1.3rem;font-weight:800;
  color:var(--ink);margin-bottom:.5rem;
}
.footer .brand span{color:var(--amber)}
.footer p{font-size:.88rem;color:var(--ink-2)}
.footer h4{
  font-family:var(--font-mono);font-size:.72rem;font-weight:600;
  color:var(--ink-3);letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:.8rem;
}
.footer a{color:var(--ink-2);font-size:.88rem;display:block;margin-bottom:.3rem}
.footer a:hover{color:var(--amber)}
.footer .base{
  display:flex;justify-content:space-between;
  padding-top:1.2rem;border-top:1px solid var(--border);
  font-family:var(--font-mono);font-size:.72rem;color:var(--ink-3);
}

/* --- SCROLL REVEAL --- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}

/* --- REDUCED MOTION --- */
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .ticker-track{animation:none}
  .cursor{animation:none;opacity:1}
  .pulse-live{animation:none}
}

/* --- RESPONSIVE --- */
@media(max-width:900px){
  #mainnav{
    display:none;position:fixed;top:0;left:0;right:0;bottom:0;
    background:var(--bg);flex-direction:column;
    align-items:center;justify-content:center;gap:2rem;z-index:200;
  }
  #mainnav.open{display:flex}
  .burger{display:block;z-index:201}
  .sitehead .cta{display:none}

  .hero-terminal .container{grid-template-columns:1fr}
  .hero-img{display:none}
  .arch-grid{grid-template-columns:1fr}
  .arch-grid .span-4,.arch-grid .span-6,.arch-grid .span-8{grid-column:span 1}
  .projects-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr}
  .readouts .container{grid-template-columns:repeat(2,1fr)}
  .pricing-grid{grid-template-columns:1fr}
  .testimonials-grid{grid-template-columns:1fr}
  .feature{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band .container{flex-direction:column;text-align:center}
}
@media(max-width:600px){
  .form-row{grid-template-columns:1fr}
  .readouts .container{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
}