:root{
    --bg:#0a0c0f;
    --bg-alt:#0f1319;
    --surface:#151a21;
    --surface-2:#1b212a;
    --border:#2a323d;
    --border-bright:#3a4552;
    --text:#eef1f4;
    --text-dim:#9aa5b1;
    --text-faint:#5c6673;
    --amber:#ff9d33;
    --amber-dim:#402508;
    --cyan:#38d9c9;
    --cyan-dim:#0d2b28;
    --font-display:'Chakra Petch',sans-serif;
    --font-body:'IBM Plex Sans',sans-serif;
    --font-mono:'IBM Plex Mono',monospace;
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-body);
    line-height:1.6;
    overflow-x:hidden;
  }
  ::selection{background:var(--amber);color:#0a0c0f;}

  .grid-bg{
    position:fixed;inset:0;z-index:0;pointer-events:none;
    background-image:
      linear-gradient(rgba(255,157,51,0.045) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,157,51,0.045) 1px, transparent 1px);
    background-size:56px 56px;
    mask-image:radial-gradient(ellipse 120% 80% at 50% 0%, black 40%, transparent 90%);
  }
  .noise{
    position:fixed;inset:0;z-index:0;pointer-events:none;opacity:0.035;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }

  .container{max-width:1120px;margin:0 auto;padding:0 32px;position:relative;z-index:2;}

  /* ---------- TOP BAR ---------- */
  .topbar{
    position:sticky;top:0;z-index:50;
    background:rgba(10,12,15,0.82);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
  }
  .topbar-inner{
    max-width:1120px;margin:0 auto;padding:0 32px;
    display:flex;align-items:center;justify-content:space-between;
    height:64px;
  }
  .logo{
    font-family:var(--font-display);font-weight:700;font-size:19px;letter-spacing:0.03em;
    display:flex;align-items:center;gap:10px;
    color:var(--text);text-decoration:none;
  }
  .logo-mrt{font-family:var(--font-mono);font-weight:600;letter-spacing:0.04em;}
  .logo-mark{
    width:11px;height:11px;background:var(--amber);
    box-shadow:0 0 10px var(--amber);
    animation:pulse 2.4s ease-in-out infinite;
    flex-shrink:0;
  }
  @keyframes pulse{
    0%,100%{opacity:1;box-shadow:0 0 6px var(--amber);}
    50%{opacity:0.4;box-shadow:0 0 14px var(--amber);}
  }
  .topbar-right{display:flex;align-items:center;gap:28px;}
  .nav-links{display:flex;gap:36px;font-family:var(--font-mono);font-size:13px;letter-spacing:0.04em;}
  .nav-links a{color:var(--text-dim);text-decoration:none;transition:color .2s;position:relative;}
  .nav-links a:hover{color:var(--amber);}
  .nav-links span{color:var(--text-faint);}
  @media (max-width:720px){.nav-links{display:none;}}

  .lang-switch{
    display:flex;align-items:center;gap:8px;
    font-family:var(--font-mono);font-size:12px;letter-spacing:0.05em;
    padding-left:24px;border-left:1px solid var(--border);
  }
  .lang-switch a{color:var(--text-faint);text-decoration:none;transition:color .2s;}
  .lang-switch a.active{color:var(--amber);}
  .lang-switch a:not(.active):hover{color:var(--text);}
  .lang-switch .sep{color:var(--border-bright);}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;padding:120px 0 100px;
    border-bottom:1px solid var(--border);
  }
  .hero-tag{
    font-family:var(--font-mono);font-size:13px;color:var(--cyan);
    letter-spacing:0.12em;text-transform:uppercase;
    display:flex;align-items:center;gap:10px;margin-bottom:28px;
    opacity:0;animation:riseIn .7s ease forwards;
  }
  .hero-tag::before{content:'';width:28px;height:1px;background:var(--cyan);}
  .hero h1{
    font-family:var(--font-display);font-weight:700;
    font-size:clamp(38px,6vw,74px);line-height:1.04;letter-spacing:-0.01em;
    max-width:900px;
  }
  .hero h1 .line{display:block;overflow:hidden;}
  .hero h1 .line span{
    display:block;opacity:0;transform:translateY(100%);
    animation:riseIn .8s cubic-bezier(.22,1,.36,1) forwards;
  }
  .hero h1 .accent{color:var(--amber);}
  @keyframes riseIn{to{opacity:1;transform:translateY(0);}}
  .hero p.lead{
    margin-top:32px;max-width:600px;font-size:17px;color:var(--text-dim);
    opacity:0;animation:riseIn .7s ease forwards;animation-delay:.5s;
  }
  .hero-cta{
    margin-top:44px;display:flex;gap:16px;flex-wrap:wrap;
    opacity:0;animation:riseIn .7s ease forwards;animation-delay:.65s;
  }
  .btn{
    font-family:var(--font-mono);font-size:13px;letter-spacing:0.05em;text-transform:uppercase;
    padding:15px 28px;text-decoration:none;display:inline-flex;align-items:center;gap:10px;
    border:1px solid transparent;transition:all .25s ease;
  }
  .btn-primary{background:var(--amber);color:#150c02;font-weight:600;}
  .btn-primary:hover{background:#ffb35c;box-shadow:0 0 24px rgba(255,157,51,0.35);}
  .btn-ghost{border-color:var(--border-bright);color:var(--text);}
  .btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}

  .hero-watermark{
    position:absolute;right:0;top:60px;
    font-family:var(--font-display);font-weight:700;font-size:220px;
    color:transparent;-webkit-text-stroke:1px var(--border-bright);
    line-height:1;user-select:none;z-index:0;pointer-events:none;
    opacity:0.5;
  }
  @media (max-width:900px){.hero-watermark{display:none;}}

  /* ---------- STATS STRIP ---------- */
  .stats{
    border-bottom:1px solid var(--border);background:var(--bg-alt);
  }
  .stats-grid{
    display:grid;grid-template-columns:repeat(4,1fr);
  }
  .stat{
    padding:32px;border-right:1px solid var(--border);
  }
  .stat:last-child{border-right:none;}
  .stat-num{font-family:var(--font-mono);font-size:26px;color:var(--amber);font-weight:600;}
  .stat-label{font-family:var(--font-mono);font-size:11.5px;color:var(--text-faint);letter-spacing:0.06em;text-transform:uppercase;margin-top:6px;}
  @media (max-width:720px){.stats-grid{grid-template-columns:repeat(2,1fr);}.stat{border-bottom:1px solid var(--border);}}

  /* ---------- SECTION HEADER ---------- */
  .section{padding:100px 0;border-bottom:1px solid var(--border);position:relative;}
  .eyebrow{
    font-family:var(--font-mono);font-size:12.5px;color:var(--amber);
    letter-spacing:0.12em;text-transform:uppercase;margin-bottom:16px;
    display:flex;align-items:center;gap:10px;
  }
  .eyebrow::before{content:'//';color:var(--text-faint);}
  .section-title{
    font-family:var(--font-display);font-weight:700;font-size:clamp(28px,4vw,42px);
    letter-spacing:-0.01em;max-width:640px;
  }

  .reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease;}
  .reveal.in{opacity:1;transform:translateY(0);}

  /* ---------- ABOUT ---------- */
  .about-grid{
    display:grid;grid-template-columns:1.1fr 0.9fr;gap:64px;margin-top:48px;align-items:center;
  }
  .about-text p{color:var(--text-dim);font-size:16px;margin-top:18px;}
  .about-text strong{color:var(--text);font-weight:600;}
  @media (max-width:860px){.about-grid{grid-template-columns:1fr;}}

  .rack{
    background:var(--surface);border:1px solid var(--border);padding:20px;
  }
  .rack-header{
    display:flex;justify-content:space-between;font-family:var(--font-mono);
    font-size:11px;color:var(--text-faint);letter-spacing:0.05em;margin-bottom:14px;
    text-transform:uppercase;
  }
  .rack-unit{
    display:flex;align-items:center;gap:10px;background:var(--surface-2);
    border:1px solid var(--border);padding:10px 12px;margin-bottom:6px;
    font-family:var(--font-mono);font-size:12px;color:var(--text-dim);
  }
  .rack-unit .led{width:7px;height:7px;background:var(--cyan);flex-shrink:0;box-shadow:0 0 6px var(--cyan);}
  .rack-unit:nth-child(3) .led,.rack-unit:nth-child(6) .led{background:var(--amber);box-shadow:0 0 6px var(--amber);}
  .rack-unit .led{animation:blink 3s ease-in-out infinite;}
  .rack-unit:nth-child(2) .led{animation-delay:.4s;}
  .rack-unit:nth-child(3) .led{animation-delay:.9s;}
  .rack-unit:nth-child(4) .led{animation-delay:1.3s;}
  .rack-unit:nth-child(5) .led{animation-delay:.2s;}
  .rack-unit:nth-child(6) .led{animation-delay:1.7s;}
  @keyframes blink{0%,100%{opacity:1;}50%{opacity:0.25;}}

  /* ---------- MISSION ---------- */
  .mission{background:var(--bg-alt);}
  .mission-quote{
    font-family:var(--font-display);font-weight:600;font-size:clamp(24px,3.2vw,36px);
    line-height:1.35;max-width:900px;margin-top:40px;color:var(--text);
  }
  .mission-quote .hl{color:var(--amber);}
  .mission-quote .hl2{color:var(--cyan);}

  /* ---------- SERVICES ---------- */
  .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);margin-top:48px;}
  .card{
    background:var(--bg);padding:36px 30px;position:relative;transition:background .3s ease;
  }
  .card:hover{background:var(--surface);}
  .card-num{font-family:var(--font-mono);font-size:12px;color:var(--text-faint);}
  .card-icon{width:44px;height:44px;margin:20px 0 22px;position:relative;}
  .card h3{font-family:var(--font-display);font-size:20px;font-weight:600;margin-bottom:14px;}
  .card p{color:var(--text-dim);font-size:14.5px;}
  .card ul{margin-top:16px;list-style:none;}
  .card li{
    font-family:var(--font-mono);font-size:12.5px;color:var(--text-dim);
    padding-left:18px;position:relative;margin-top:8px;
  }
  .card li::before{content:'▸';position:absolute;left:0;color:var(--amber);}
  @media (max-width:860px){.cards{grid-template-columns:1fr;}}

  /* icon shapes (pure css/svg) */
  .icon-router{border:2px solid var(--amber);position:relative;}
  .icon-router::before,.icon-router::after{content:'';position:absolute;background:var(--amber);}
  .icon-router::before{width:2px;height:14px;top:-13px;left:10px;}
  .icon-router::after{width:2px;height:14px;top:-13px;right:10px;}
  .icon-server{border:2px solid var(--cyan);position:relative;}
  .icon-server::before{content:'';position:absolute;top:8px;left:6px;right:6px;height:2px;background:var(--cyan);box-shadow:0 10px 0 var(--cyan);}
  .icon-leaf{border:2px solid var(--amber);border-radius:0 60% 0 60%;}

  /* ---------- CONTACT ---------- */
  .contact-grid{
    display:grid;grid-template-columns:1fr 1fr;gap:64px;margin-top:48px;
  }
  @media (max-width:860px){.contact-grid{grid-template-columns:1fr;}}
  .contact-cta p{color:var(--text-dim);font-size:16px;max-width:440px;}
  .contact-links{margin-top:32px;display:flex;flex-direction:column;gap:18px;}
  .contact-link{
    display:flex;align-items:baseline;gap:14px;text-decoration:none;color:var(--text);
    font-family:var(--font-mono);font-size:15px;border-bottom:1px solid var(--border);padding-bottom:14px;
    transition:border-color .2s,color .2s;
  }
  .contact-link:hover{color:var(--amber);border-color:var(--amber);}
  .contact-link .lbl{font-size:11px;color:var(--text-faint);letter-spacing:0.08em;text-transform:uppercase;min-width:70px;}

  .datasheet{
    background:var(--surface);border:1px solid var(--border);padding:0;
  }
  .datasheet-head{
    font-family:var(--font-mono);font-size:11px;letter-spacing:0.08em;text-transform:uppercase;
    color:var(--bg);background:var(--amber);padding:10px 20px;font-weight:600;
  }
  .datasheet-row{
    display:grid;grid-template-columns:140px 1fr;gap:12px;
    padding:16px 20px;border-bottom:1px solid var(--border);
    font-family:var(--font-mono);font-size:13px;
  }
  .datasheet-row:last-child{border-bottom:none;}
  .datasheet-row .k{color:var(--text-faint);}
  .datasheet-row .v{color:var(--text-dim);}

  /* ---------- FOOTER ---------- */
  footer{padding:36px 0;}
  .footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;}
  .footer-inner p{font-family:var(--font-mono);font-size:12px;color:var(--text-faint);}
  .status{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;color:var(--text-faint);letter-spacing:0.05em;}
  .status .led{width:6px;height:6px;background:var(--cyan);border-radius:50%;box-shadow:0 0 6px var(--cyan);animation:pulse 2.4s ease-in-out infinite;}