/* =========================================================
   RK TECH PRO — Design tokens
   Palette pulled directly from the logo:
   navy #101721, blue #3B6BD7, white, slate gray #838793
   ========================================================= */
:root{
  --navy-900:#0b0f16;
  --navy-800:#101721;
  --navy-700:#161f2c;
  --navy-600:#1d2735;
  --navy-500:#28344a;
  --line: #26314444;
  --blue: #3b6bd7;
  --blue-light:#6f97e6;
  --blue-dim: #3b6bd733;
  --white:#f7f8fa;
  --gray-300:#c3c8d3;
  --gray-400:#9aa1b0;
  --gray-500:#838793;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --maxw: 1160px;
  --radius: 4px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background: var(--navy-800);
  color: var(--white);
  font-family: var(--font-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(--font-display); margin:0; font-weight:600; letter-spacing:-0.01em; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

::selection{ background:var(--blue); color:var(--white); }

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

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

.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--blue-light);
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:18px; height:1px;
  background:var(--blue-light);
  display:inline-block;
}

/* -------------------- background texture -------------------- */
body{
  background-image:
    radial-gradient(ellipse 900px 500px at 85% -10%, #1a3b7a33, transparent 60%),
    radial-gradient(ellipse 700px 500px at -10% 30%, #14213b55, transparent 55%);
  background-repeat:no-repeat;
}

/* -------------------- diagonal chevron divider (signature) -------------------- */
.chevron-divider{
  position:relative;
  height:64px;
  width:100%;
  overflow:hidden;
}
.chevron-divider svg{ width:100%; height:100%; display:block; }

/* -------------------- header -------------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:#0b0f16f2;
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height:34px; width:auto; }

.nav-links{
  display:flex; align-items:center; gap:34px;
}
.nav-links a{
  font-size:14.5px;
  color:var(--gray-300);
  position:relative;
  padding:6px 0;
  transition:color .2s ease;
}
.nav-links a:hover{ color:var(--white); }
.nav-links a::after{
  content:"";
  position:absolute; left:0; bottom:0;
  width:0%; height:1.5px;
  background:var(--blue);
  transition:width .25s ease;
}
.nav-links a:hover::after{ width:100%; }

.header-right{ display:flex; align-items:center; gap:22px; }

.lang-switch{
  display:flex; align-items:center; gap:2px;
  font-family:var(--font-mono);
  font-size:12.5px;
  border:1px solid var(--line);
  border-radius:20px;
  padding:4px;
}
.lang-switch a{
  padding:5px 11px;
  border-radius:16px;
  color:var(--gray-400);
  transition:all .2s ease;
}
.lang-switch a.active{
  background:var(--blue);
  color:var(--white);
}
.lang-switch a:not(.active):hover{ color:var(--white); }

.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono);
  font-size:13.5px;
  letter-spacing:.02em;
  padding:12px 22px;
  border-radius:2px;
  border:1px solid transparent;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--blue);
  color:var(--white);
}
.btn-primary:hover{ background:var(--blue-light); transform:translateY(-1px); }
.btn-ghost{
  border-color:var(--line);
  color:var(--gray-300);
}
.btn-ghost:hover{ border-color:var(--blue-light); color:var(--white); }

.nav-toggle{ display:none; }

/* -------------------- hero -------------------- */
.hero{
  padding:96px 0 60px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:clamp(2.4rem, 4.6vw, 3.7rem);
  line-height:1.08;
  margin:20px 0 22px;
}
.hero h1 .accent{ color:var(--blue-light); }
.hero p.lead{
  color:var(--gray-300);
  font-size:1.08rem;
  max-width:520px;
  margin-bottom:34px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* terminal mock */
.terminal{
  background:var(--navy-700);
  border:1px solid var(--line);
  border-radius:8px;
  overflow:hidden;
  box-shadow:0 30px 60px -20px #00000080;
}
.terminal-bar{
  display:flex; align-items:center; gap:8px;
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  background:var(--navy-600);
}
.terminal-bar span{
  width:10px; height:10px; border-radius:50%;
  background:#3a4557;
}
.terminal-bar .t-title{
  margin-left:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--gray-500);
}

#top > section.hero > div > div.terminal > div.terminal-bar > span.t-title{
	margin-left:40px;
}


.terminal-body{
  padding:22px 20px;
  font-family:var(--font-mono);
  font-size:13.5px;
  color:var(--gray-300);
  min-height:220px;
}
.terminal-body .prompt{ color:var(--blue-light); }
.terminal-body .line{ margin-bottom:10px; opacity:0; animation:fadeUp .5s ease forwards; }
.terminal-body .line:nth-child(1){ animation-delay:.15s; }
.terminal-body .line:nth-child(2){ animation-delay:.55s; }
.terminal-body .line:nth-child(3){ animation-delay:.95s; }
.terminal-body .line:nth-child(4){ animation-delay:1.35s; }
.terminal-body .line:nth-child(5){ animation-delay:1.75s; }
.cursor{
  display:inline-block; width:7px; height:14px;
  background:var(--blue-light);
  margin-left:2px;
  animation:blink 1s step-end infinite;
  vertical-align:middle;
}
@keyframes blink{ 50%{ opacity:0; } }
@keyframes fadeUp{ from{ opacity:0; transform:translateY(6px);} to{ opacity:1; transform:translateY(0);} }

@media (prefers-reduced-motion: reduce){
  .terminal-body .line{ animation:none; opacity:1; }
  .cursor{ animation:none; }
}

/* -------------------- section base -------------------- */
section{ padding:88px 0; }
.section-head{
  max-width:640px;
  margin-bottom:52px;
}
.section-head h2{
  font-size:clamp(1.8rem,3vw,2.5rem);
  margin-top:16px;
}
.section-head p{
  color:var(--gray-400);
  margin-top:14px;
  font-size:1.02rem;
}

/* -------------------- services -------------------- */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.service-card{
  background:var(--navy-800);
  padding:32px 28px;
  transition:background .25s ease;
  position:relative;
}
.service-card:hover{ background:var(--navy-700); }
.service-card .num{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--blue-light);
  letter-spacing:.1em;
}
.service-icon{
  width:38px; height:38px;
  margin:18px 0 18px;
  color:var(--blue-light);
}
.service-card h3{
  font-size:1.1rem;
  margin-bottom:10px;
}
.service-card p{
  color:var(--gray-400);
  font-size:.92rem;
}

/* -------------------- stats -------------------- */
.stats-band{
  background:var(--navy-700);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.stat b{
  font-family:var(--font-display);
  font-size:2.4rem;
  color:var(--white);
  display:block;
}
.stat span{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--gray-500);
  letter-spacing:.04em;
  text-transform:uppercase;
}

/* -------------------- about -------------------- */
.about-grid{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap:64px;
  align-items:start;
}
.about-visual{
  position:relative;
  border:1px solid var(--line);
  border-radius:8px;
  padding:36px 30px;
  background:linear-gradient(155deg, var(--navy-700), var(--navy-800));
  overflow:hidden;
}
.about-visual::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(120deg, transparent 55%, var(--blue-dim) 100%);
  pointer-events:none;
}
.about-visual h4{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--gray-500);
  text-transform:uppercase;
  letter-spacing:.1em;
  margin-bottom:22px;
}
.value-list li{
  display:flex; gap:14px;
  padding:14px 0;
  border-top:1px solid var(--line);
  font-size:.95rem;
  color:var(--gray-300);
}
.value-list li:first-child{ border-top:none; }
.value-list b{ color:var(--white); }

.about-copy p{
  color:var(--gray-300);
  margin-bottom:20px;
  font-size:1.02rem;
}
.about-copy p:last-child{ margin-bottom:0; }

/* -------------------- process -------------------- */
.process-list{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  counter-reset:step;
  border-top:1px solid var(--line);
}
.process-step{
  padding:34px 30px 34px 0;
  border-right:1px solid var(--line);
  position:relative;
}
.process-step:last-child{ border-right:none; }
.process-step .step-num{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--blue-light);
  display:block;
  margin-bottom:14px;
}
.process-step h3{ font-size:1.08rem; margin-bottom:10px; }
.process-step p{ color:var(--gray-400); font-size:.93rem; }
.process-step + .process-step{ padding-left:30px; }

/* -------------------- contact -------------------- */
.contact-band{
  background:var(--navy-700);
  border-top:1px solid var(--line);
}
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}
.contact-copy h2{ font-size:clamp(1.8rem,3vw,2.4rem); margin-bottom:18px; }
.contact-copy p{ color:var(--gray-300); margin-bottom:28px; max-width:440px; }

.contact-email{
  display:inline-flex; align-items:center; gap:12px;
  font-family:var(--font-mono);
  font-size:1.15rem;
  color:var(--white);
  border-bottom:1px solid var(--blue);
  padding-bottom:6px;
  transition:color .2s ease;
}
.contact-email:hover{ color:var(--blue-light); }
.contact-email svg{ width:20px; height:20px; color:var(--blue-light); }

.contact-card{
  background:var(--navy-800);
  border:1px solid var(--line);
  border-radius:8px;
  padding:34px;
}
.contact-card .row{
  display:flex; justify-content:space-between; align-items:center;
  padding:16px 0;
  border-top:1px solid var(--line);
}
.contact-card .row:first-child{ border-top:none; padding-top:0; }
.contact-card .row span:first-child{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--gray-500);
  text-transform:uppercase;
  letter-spacing:.06em;
}
.contact-card .row span:last-child{ color:var(--gray-200,#dfe2e8); font-size:.94rem; }

/* -------------------- footer -------------------- */
footer{
  padding:48px 0 36px;
  border-top:1px solid var(--line);
}
.footer-grid{
  display:flex; justify-content:space-between; align-items:flex-start;
  flex-wrap:wrap; gap:30px;
}
.footer-brand{ display:flex; align-items:center; gap:10px; }
.footer-brand img{ height:26px; }
.footer-nav{ display:flex; gap:28px; flex-wrap:wrap; }
.footer-nav a{ color:var(--gray-400); font-size:.9rem; }
.footer-nav a:hover{ color:var(--white); }
.footer-bottom{
  margin-top:34px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:.82rem;
  color:var(--gray-500);
  font-family:var(--font-mono);
}

/* -------------------- responsive -------------------- */
@media (max-width: 900px){
  .hero-grid, .about-grid, .contact-grid{ grid-template-columns:1fr; }
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .process-list{ grid-template-columns:1fr; }
  .process-step{ border-right:none !important; border-bottom:1px solid var(--line); padding:26px 0 !important; }
  .process-step:last-child{ border-bottom:none; }
}

@media (max-width: 760px){
  .nav-links{
    position:fixed; inset:76px 0 0 0;
    background:var(--navy-800);
    flex-direction:column;
    align-items:flex-start;
    padding:30px 28px;
    gap:22px;
    transform:translateX(100%);
    transition:transform .3s ease;
    border-top:1px solid var(--line);
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-toggle{
    display:flex; flex-direction:column; gap:5px;
    background:none; border:none; padding:6px;
  }
  .nav-toggle span{ width:22px; height:1.5px; background:var(--white); }
  .header-right .btn-ghost{ display:none; }
  .services-grid{ grid-template-columns:1fr; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
}

@media (max-width: 480px){
  .hero{ padding-top:64px; }
  .lang-switch a{ padding:5px 8px; }
}