/* =========================================================
   KAYPEX TECHNICAL SERVICES LIMITED — Design System
   Palette drawn from inspection tags, steel, and technical drawings.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Archivo:ital,wght@0,500;0,600;0,700;0,800;1,500&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  /* Color — sampled from the new KP roundel logo (client-approved, transparent PNG) */
  --ink:        #0A1826;   /* near-black navy, body text */
  --ink-70:     rgba(10,24,38,.72);
  --ink-50:     rgba(10,24,38,.52);
  --paper:      #ECEAE4;   /* technical drawing paper */
  --paper-dim:  #E1DFD7;
  --white:      #FAFAF8;
  --steel:      #14304F;   /* brand navy — panels, footer */
  --steel-2:    #1D4570;
  --steel-line: rgba(250,250,248,.16);
  --signal:     #EE782F;   /* brand orange — single accent, vivid */
  --signal-ink: #B85A1F;
  --rust:       #EE782F;   /* alias kept for existing references; same as signal */
  --gray:       #6B6B6E;   /* neutral secondary */
  --line:       rgba(10,24,38,.16);
  --line-strong:rgba(10,24,38,.30);

  /* Type */
  --f-head: 'Archivo', sans-serif;
  --f-body: 'IBM Plex Sans', sans-serif;
  --f-mono: 'IBM Plex Mono', monospace;

  --container: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{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(--f-head);margin:0;line-height:1.08;letter-spacing:-0.01em;}
p{margin:0;}
button{font-family:inherit;}

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

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

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

/* -------------------- Ticks (measurement-mark divider) -------------------- */
.ticks{
  display:flex;
  align-items:center;
  gap:6px;
  height:14px;
}
.ticks span{
  width:1px;
  height:8px;
  background:var(--line-strong);
}
.ticks span:nth-child(4n){height:12px;background:var(--ink-50);}

/* -------------------- Corner-bracket frame (viewfinder motif) -------------------- */
.bracket{
  position:relative;
}
.bracket::before,
.bracket::after{
  content:"";
  position:absolute;
  width:22px;
  height:22px;
  border-color:var(--signal);
  border-style:solid;
  border-width:0;
}
.bracket::before{
  top:-1px;left:-1px;
  border-top-width:2px;
  border-left-width:2px;
}
.bracket::after{
  bottom:-1px;right:-1px;
  border-bottom-width:2px;
  border-right-width:2px;
}

/* -------------------- Header -------------------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:84px;
}
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  line-height:1;
}
.logo img{
  height:46px;
  width:auto;
  display:block;
}
.logo .type{
  display:flex;
  flex-direction:column;
}
.logo .mark{
  font-family:var(--f-head);
  font-weight:800;
  font-size:1.5rem;
  letter-spacing:-0.02em;
}
.logo .sub{
  font-family:var(--f-mono);
  font-size:0.62rem;
  font-weight:500;
  letter-spacing:0.08em;
  color:var(--ink-70);
  margin-top:3px;
}
nav.primary-nav ul{
  display:flex;
  gap:36px;
}
nav.primary-nav a{
  font-size:0.95rem;
  font-weight:500;
  position:relative;
  padding:6px 0;
}
nav.primary-nav a[aria-current="page"]{
  color:var(--rust);
}
nav.primary-nav a[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:var(--rust);
}
.header-cta{
  display:flex;
  align-items:center;
  gap:20px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  font-size:0.9rem;
  font-weight:600;
  border:1px solid var(--ink);
  background:transparent;
  cursor:pointer;
  white-space:nowrap;
}
.btn-solid{
  background:var(--ink);
  color:var(--paper);
}
.btn-solid:hover{background:var(--rust);border-color:var(--rust);}
.btn-outline:hover{background:var(--ink);color:var(--paper);}
.btn-signal{
  background:var(--signal);
  border-color:var(--signal);
  color:var(--ink);
}
.btn-signal:hover{background:var(--signal-ink);border-color:var(--signal-ink);color:var(--paper);}

.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line-strong);
  background:none;
  cursor:pointer;
  position:relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:"";
  position:absolute;
  left:9px;right:9px;
  height:1px;
  background:var(--ink);
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span{top:19px;}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}
.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:0;right:0;}
.nav-toggle.open span{background:transparent;}
.nav-toggle.open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.open span::after{transform:translateY(-6px) rotate(-45deg);}

/* -------------------- Hero -------------------- */
.hero{
  position:relative;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero .wrap{
  padding-top:72px;
  padding-bottom:64px;
  display:grid;
  grid-template-columns:1.15fr 0.85fr;
  gap:48px;
  align-items:end;
}
.hero-eyebrow-row{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:22px;
}
.hero-eyebrow-row .ticks{flex:1;}
.hero-eyebrow{
  font-family:var(--f-mono);
  font-size:0.72rem;
  font-weight:600;
  color:var(--ink-70);
  white-space:nowrap;
}
.hero h1{
  font-size:clamp(2.3rem, 4.6vw, 3.8rem);
  font-weight:700;
  max-width:14ch;
}
.hero h1 em{
  font-style:italic;
  font-weight:500;
  color:var(--rust);
}
.hero-lede{
  margin-top:22px;
  font-size:1.1rem;
  color:var(--ink-70);
  max-width:48ch;
}
.hero-actions{
  margin-top:34px;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.hero-panel{
  background:var(--steel);
  color:var(--white);
  padding:28px;
  align-self:stretch;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.hero-panel .tag-label{
  font-family:var(--f-mono);
  font-size:0.65rem;
  letter-spacing:0.06em;
  color:rgba(250,250,248,.6);
  margin-bottom:10px;
}
.hero-panel .rc{
  font-family:var(--f-mono);
  font-size:0.95rem;
  color:var(--white);
  margin-bottom:20px;
}
.hero-stats{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  border-top:1px solid var(--steel-line);
  padding-top:20px;
}
.hero-stats .n{
  font-family:var(--f-head);
  font-size:1.7rem;
  font-weight:700;
  color:var(--signal);
}
.hero-stats .l{
  font-size:0.78rem;
  color:rgba(250,250,248,.75);
  margin-top:2px;
}

/* -------------------- Section scaffolding -------------------- */
section{padding:88px 0;}
.section-head{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:end;
  margin-bottom:56px;
}
.section-tag{
  display:flex;
  align-items:center;
  gap:12px;
  font-family:var(--f-mono);
  font-size:0.72rem;
  font-weight:600;
  color:var(--rust);
  margin-bottom:16px;
}
.section-tag .num{color:var(--ink-50);}
.section-head h2{
  font-size:clamp(1.9rem,3vw,2.6rem);
  font-weight:700;
  max-width:16ch;
}
.section-head p{
  color:var(--ink-70);
  font-size:1.02rem;
  max-width:44ch;
  justify-self:end;
}
.divider{
  border:0;
  border-top:1px solid var(--line);
  margin:0;
}

/* -------------------- Services -------------------- */
.services-list{
  display:flex;
  flex-direction:column;
}
.service-row{
  display:grid;
  grid-template-columns:90px 1.3fr 1.7fr;
  gap:32px;
  padding:34px 0;
  border-top:1px solid var(--line);
  align-items:start;
}
.services-list .service-row:last-child{border-bottom:1px solid var(--line);}
.service-row .idx{
  font-family:var(--f-mono);
  font-size:0.85rem;
  color:var(--ink-50);
  padding-top:4px;
}
.service-row h3{
  font-size:1.28rem;
  font-weight:700;
  max-width:16ch;
}
.service-row .desc{color:var(--ink-70);}
.service-row .desc p{margin-bottom:12px;}
.service-row .desc ul{margin-top:10px;}
.service-row .desc li{
  position:relative;
  padding-left:16px;
  margin-bottom:6px;
  font-size:0.95rem;
}
.service-row .desc li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:1px;
  background:var(--rust);
}

/* -------------------- Cards (why us / process) -------------------- */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.card{
  background:var(--paper);
  padding:36px 30px;
}
.card .k{
  font-family:var(--f-mono);
  font-size:0.7rem;
  color:var(--rust);
  margin-bottom:14px;
  display:block;
}
.card h3{font-size:1.15rem;font-weight:700;margin-bottom:12px;}
.card p{color:var(--ink-70);font-size:0.95rem;}

/* -------------------- CTA band -------------------- */
.cta-band{
  background:var(--ink);
  color:var(--paper);
}
.cta-band .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(1.7rem,3vw,2.3rem);
  max-width:16ch;
}
.cta-band .btn{border-color:var(--paper);color:var(--paper);}
.cta-band .btn-signal{color:var(--ink);}

/* -------------------- Footer -------------------- */
footer.site-footer{
  background:var(--steel);
  color:rgba(250,250,248,.85);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--steel-line);
}
.footer-grid h4{
  font-family:var(--f-mono);
  font-size:0.7rem;
  letter-spacing:0.06em;
  color:rgba(250,250,248,.55);
  margin-bottom:18px;
}
.footer-grid li{margin-bottom:10px;font-size:0.92rem;}
.footer-grid a:hover{color:var(--signal);}
.footer-brand .mark{
  font-family:var(--f-head);
  font-weight:800;
  font-size:1.4rem;
  color:var(--white);
}
.footer-brand .footer-logo{
  height:32px;
  width:auto;
  display:block;
}
.footer-brand p{
  margin-top:14px;
  color:rgba(250,250,248,.7);
  font-size:0.92rem;
  max-width:34ch;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  padding-top:24px;
  font-size:0.8rem;
  color:rgba(250,250,248,.55);
  font-family:var(--f-mono);
  flex-wrap:wrap;
  gap:10px;
}

/* -------------------- Page hero (interior pages) -------------------- */
.page-hero{
  border-bottom:1px solid var(--line);
}
.page-hero .wrap{padding:56px 0 48px;}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);max-width:20ch;}
.page-hero p{margin-top:16px;color:var(--ink-70);font-size:1.05rem;max-width:52ch;}

/* -------------------- About page specifics -------------------- */
.about-block{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:start;
}
.about-block .lead{font-size:1.15rem;color:var(--ink-70);}
.stat-row{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  margin-top:40px;
}
.stat-row .s{background:var(--paper);padding:26px;}
.stat-row .s .n{font-family:var(--f-head);font-size:2.1rem;font-weight:800;color:var(--rust);}
.stat-row .s .l{font-size:0.85rem;color:var(--ink-70);margin-top:4px;}

.value-list{display:flex;flex-direction:column;gap:0;}
.value-item{
  padding:22px 0;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:70px 1fr;
  gap:20px;
}
.value-item:last-child{border-bottom:1px solid var(--line);}
.value-item .idx{font-family:var(--f-mono);color:var(--ink-50);font-size:0.85rem;}
.value-item h4{font-size:1.05rem;margin-bottom:6px;}
.value-item p{color:var(--ink-70);font-size:0.93rem;}

/* -------------------- Contact page -------------------- */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:start;
}
.contact-info-item{
  padding:22px 0;
  border-top:1px solid var(--line);
}
.contact-info-item:last-child{border-bottom:1px solid var(--line);}
.contact-info-item .k{
  font-family:var(--f-mono);
  font-size:0.68rem;
  color:var(--rust);
  display:block;
  margin-bottom:6px;
}
.contact-info-item .v{font-size:1.02rem;}
.contact-info-item .v a:hover{color:var(--rust);}

form.contact-form{display:flex;flex-direction:column;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{
  font-family:var(--f-mono);
  font-size:0.68rem;
  letter-spacing:0.04em;
  color:var(--ink-70);
}
.field input,.field select,.field textarea{
  border:none;
  border-bottom:1px solid var(--line-strong);
  background:transparent;
  padding:10px 2px;
  font-family:var(--f-body);
  font-size:1rem;
  color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-bottom-color:var(--rust);
}
.field textarea{resize:vertical;min-height:110px;}
.form-note{font-size:0.82rem;color:var(--ink-50);margin-top:4px;}
.form-status{
  font-family:var(--f-mono);
  font-size:0.85rem;
  padding:14px 16px;
  border:1px solid var(--line-strong);
  display:none;
}
.form-status.visible{display:block;}
.form-status.ok{border-color:var(--rust);color:var(--rust);}

/* -------------------- Services page specifics -------------------- */
.service-detail{
  padding:56px 0;
  border-top:1px solid var(--line);
}
.services-page .service-detail:last-of-type{border-bottom:1px solid var(--line);}
.service-detail .wrap{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:56px;
}
.service-detail .head-col{position:sticky;top:110px;align-self:start;}
.service-detail .idx-big{
  font-family:var(--f-mono);
  font-size:0.85rem;
  color:var(--rust);
  margin-bottom:14px;
  display:block;
}
.service-detail h2{font-size:1.6rem;font-weight:700;}
.service-detail .body p{color:var(--ink-70);margin-bottom:16px;max-width:60ch;}
.scope-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px 30px;
  margin-top:20px;
}
.scope-grid div{
  position:relative;
  padding-left:16px;
  font-size:0.93rem;
  color:var(--ink-70);
}
.scope-grid div::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:6px;height:1px;
  background:var(--rust);
}

/* -------------------- Brand lockup frame -------------------- */
.brand-frame-wrap{
  display:flex;
  justify-content:center;
  padding:56px 0 0;
}
.brand-frame{
  padding:12px;
  max-width:280px;
}
.brand-frame img{
  width:100%;
  height:auto;
  display:block;
}
.footer-brand .footer-logo{
  height:56px;
  width:auto;
  display:block;
}
.footer-brand .footer-tagline{
  font-family:var(--f-mono);
  font-size:0.7rem;
  letter-spacing:0.08em;
  color:var(--signal);
  margin-top:12px;
}

/* -------------------- Chips (industries served) -------------------- */
.chips{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.chip{
  position:relative;
  padding:12px 20px 12px 26px;
  border:1px solid var(--line-strong);
  font-size:0.92rem;
  background:var(--paper);
}
.chip::before{
  content:"";
  position:absolute;
  left:10px;top:50%;
  transform:translateY(-50%);
  width:8px;height:1px;
  background:var(--rust);
}

/* -------------------- Quality policy flow -------------------- */
.flow{
  display:flex;
  align-items:stretch;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.flow .step{
  font-family:var(--f-mono);
  font-size:0.82rem;
  font-weight:600;
  padding:16px 18px;
  border:1px solid var(--line-strong);
  background:var(--white);
  display:flex;
  align-items:center;
}
.flow .arrow{
  display:flex;
  align-items:center;
  color:var(--rust);
  font-size:1rem;
  padding:0 2px;
}

/* -------------------- 4-step approach grid -------------------- */
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.grid-4 .card .step-num{
  font-family:var(--f-mono);
  font-size:0.95rem;
  color:var(--rust);
  display:block;
  margin-bottom:14px;
}

/* -------------------- Category header inside service rows -------------------- */
.service-row .desc .cat-note{
  font-family:var(--f-mono);
  font-size:0.7rem;
  color:var(--ink-50);
  margin-top:14px;
  display:block;
}

/* -------------------- Field operations slider -------------------- */
.field-slider-section{
  padding:56px 0 88px;
}
.field-tag{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:24px;
}
.field-tag .ticks{flex:1;}
.field-tag span{
  font-family:var(--f-mono);
  font-size:0.72rem;
  font-weight:600;
  color:var(--rust);
  white-space:nowrap;
}
.slider{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--ink);
}
.slider-track{
  display:flex;
  height:100%;
  width:300%;
  transition:transform .6s ease;
}
.slide{
  position:relative;
  width:calc(100% / 3);
  flex-shrink:0;
  height:100%;
}
.slide img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.slide-caption{
  position:absolute;
  left:0;right:0;bottom:0;
  background:linear-gradient(to top, rgba(6,12,20,.82), rgba(6,12,20,0));
  color:var(--white);
  padding:36px 24px 20px;
  display:flex;
  align-items:baseline;
  gap:14px;
}
.slide-caption .cap-index{
  font-family:var(--f-mono);
  font-size:0.72rem;
  color:var(--signal);
  white-space:nowrap;
}
.slide-caption .cap-text{
  font-size:0.98rem;
  font-weight:600;
}
.slider-arrow{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:44px;height:44px;
  border:none;
  background:rgba(8,16,26,.55);
  color:var(--white);
  font-size:1.6rem;
  line-height:1;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
}
.slider-arrow:hover{background:var(--signal);color:var(--ink);}
.slider-arrow.prev{left:14px;}
.slider-arrow.next{right:14px;}
.slider-dots{
  position:absolute;
  bottom:16px;right:20px;
  display:flex;
  gap:8px;
}
.slider-dots .dot{
  width:9px;height:9px;
  border-radius:50%;
  border:1px solid var(--white);
  background:transparent;
  padding:0;
  cursor:pointer;
}
.slider-dots .dot.active{
  background:var(--signal);
  border-color:var(--signal);
}

/* -------------------- Responsive -------------------- */
@media (max-width:960px){
  .hero .wrap{grid-template-columns:1fr;}
  .hero-panel{margin-top:8px;}
  .about-block,.contact-grid{grid-template-columns:1fr;gap:40px;}
  .section-head{grid-template-columns:1fr;gap:16px;}
  .section-head p{justify-self:start;}
  .grid-3{grid-template-columns:1fr 1fr;}
  .grid-4{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .service-detail .wrap{grid-template-columns:1fr;gap:20px;}
  .service-detail .head-col{position:static;}
}
@media (max-width:720px){
  nav.primary-nav{
    position:fixed;
    top:84px;left:0;right:0;bottom:0;
    background:var(--paper);
    padding:24px 28px;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
    z-index:99;
  }
  nav.primary-nav.open{
    opacity:1;
    transform:translateY(0);
    pointer-events:auto;
  }
  nav.primary-nav ul{
    flex-direction:column;
    gap:2px;
  }
  nav.primary-nav a{
    display:block;
    padding:16px 0;
    font-size:1.1rem;
    border-bottom:1px solid var(--line);
  }
  .header-cta .btn-solid-desktop{display:none;}
  .nav-toggle{display:block;}
  .service-row{grid-template-columns:1fr;gap:10px;}
  .grid-3{grid-template-columns:1fr;}
  .stat-row,.grid-2{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:1fr;}
  .flow{flex-direction:column;align-items:stretch;}
  .flow .arrow{transform:rotate(90deg);padding:2px 0;}
  .cta-band .wrap{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .wrap{padding:0 20px;}
  section{padding:64px 0;}
  .slide-caption{padding:28px 16px 14px;}
  .slider-arrow{width:36px;height:36px;font-size:1.3rem;}
}