:root {
      --bg: #04080f;
      --surface: #080f1c;
      --surface2: #0c1525;
      --border: rgba(0,200,255,0.12);
      --text: #e8f0fe;
      --muted: #7a90b0;
      --accent: #00c8ff;
      --accent2: #0066ff;
      --accent-glow: rgba(0,200,255,0.18);
      --green: #00e5a0;
      --font-display: 'DM Sans', sans-serif;
      --font-body: 'DM Sans', sans-serif;
    }

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

    html { scroll-behavior: smooth; }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* ── CONTAINER ── */
    .container {
      max-width: 1160px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ── HEADER ── */
    .site-header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 200;
      padding: 18px 0;
      background: rgba(4,8,15,0.7);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
      transition: background .3s;
    }
    .header-inner {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--text);
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 15px;
      letter-spacing: .02em;
      flex: 1;
    }
    .brand-logo { height: 32px; width: auto; }
    .brand span { color: var(--accent); }

    .nav-menu { display: flex; gap: 32px; }
    .nav-menu a {
      text-decoration: none;
      color: var(--muted);
      font-size: 14px;
      font-weight: 500;
      letter-spacing: .02em;
      transition: color .2s;
      position: relative;
    }
    .nav-menu a::after {
      content: '';
      position: absolute;
      bottom: -4px; left: 0; right: 0;
      height: 1px;
      background: var(--accent);
      transform: scaleX(0);
      transition: transform .2s;
    }
    .nav-menu a:hover { color: var(--text); }
    .nav-menu a:hover::after { transform: scaleX(1); }

    .btn {
      display: inline-block;
      text-decoration: none;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 14px;
      letter-spacing: .04em;
      border-radius: 6px;
      padding: 10px 22px;
      transition: all .2s;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--accent);
      color: #04080f;
    }
    .btn-primary:hover {
      background: #33d4ff;
      box-shadow: 0 0 24px rgba(0,200,255,0.4);
      transform: translateY(-1px);
    }
    .btn-secondary {
      background: transparent;
      color: var(--text);
      border: 1px solid rgba(0,200,255,0.4);
    }
    .btn-secondary:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: rgba(0,200,255,0.06);
    }

    /* ── HERO ── */
    .hero-section {
      position: relative;
      min-height: 100vh;
      display: flex;
      align-items: center;
      overflow: hidden;
      padding-top: 80px;
    }
    .hero-video {
      position: absolute;
      top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      min-width: 100%; min-height: 100%;
      width: auto; height: auto;
      z-index: 0;
      object-fit: cover;
      opacity: 0.35;
    }
    .hero-section::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(4,8,15,0.7) 0%, rgba(4,8,15,0.3) 60%, rgba(4,8,15,0.8) 100%);
      z-index: 1;
    }
    /* bottom fade to next section */
    .hero-section::before {
      content: '';
      position: absolute;
      bottom: 0; left: 0; right: 0;
      height: 160px;
      background: linear-gradient(to bottom, transparent, var(--bg));
      z-index: 2;
    }
    .hero-grid {
      position: relative;
      z-index: 3;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      padding: 80px 24px;
      max-width: 1160px;
      margin: 0 auto;
      width: 100%;
    }
    .hero-copy { display: flex; flex-direction: column; gap: 24px; }

    .hero-eyebrow {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: .18em;
      text-transform: uppercase;
      color: var(--accent);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .hero-eyebrow::before {
      content: '';
      display: block;
      width: 28px; height: 1px;
      background: var(--accent);
    }

    .hero-title {
      font-family: var(--font-display);
      font-size: clamp(2.4rem, 5vw, 3.8rem);
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -.02em;
    }
    .hero-title span {
      color: transparent;
      -webkit-text-stroke: 1px var(--accent);
    }
    .hero-text {
      color: var(--muted);
      font-size: 17px;
      line-height: 1.7;
      max-width: 480px;
    }
    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

    .hero-card {
      background: rgba(8,15,28,0.85);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 36px;
      backdrop-filter: blur(20px);
      position: relative;
      overflow: hidden;
    }
    .hero-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--accent2), var(--accent), var(--green));
    }
    .hero-card h2 {
      font-family: var(--font-display);
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .hero-card p { color: var(--muted); font-size: 15px; margin-bottom: 24px; }
    .hero-taglist { display: flex; gap: 10px; flex-wrap: wrap; }
    .hero-taglist span {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .06em;
      padding: 5px 14px;
      border-radius: 100px;
      background: rgba(0,200,255,0.1);
      border: 1px solid rgba(0,200,255,0.25);
      color: var(--accent);
    }

    /* ── SECTION COMMON ── */
    .section { padding: 100px 0; }
    .section-heading { text-align: center; margin-bottom: 60px; }
    .eyebrow {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: .18em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .section-heading h2, .about-grid h2 {
      font-family: var(--font-display);
      font-size: clamp(1.8rem, 3.5vw, 2.6rem);
      font-weight: 800;
      letter-spacing: -.02em;
      line-height: 1.2;
    }

    /* ── SERVICES ── */
    .section-services { background: var(--surface); }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 32px 28px;
      position: relative;
      overflow: hidden;
      transition: transform .2s, border-color .2s, box-shadow .2s;
    }
    .service-card:hover {
      transform: translateY(-4px);
      border-color: rgba(0,200,255,0.3);
      box-shadow: 0 12px 40px rgba(0,200,255,0.08);
    }
    .service-icon {
      width: 44px; height: 44px;
      border-radius: 10px;
      background: rgba(0,200,255,0.1);
      border: 1px solid rgba(0,200,255,0.2);
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 20px;
      font-size: 20px;
    }
    .service-card h3 {
      font-family: var(--font-display);
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .service-card p { color: var(--muted); font-size: 14px; line-height: 1.7; }

    /* ── SERVER SHOWCASE ── */
    .section-server {
      background: var(--bg);
      overflow: hidden;
      padding: 100px 0;
    }
    .server-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .server-text { display: flex; flex-direction: column; gap: 20px; }
    .server-text h2 {
      font-family: var(--font-display);
      font-size: clamp(1.8rem, 3vw, 2.4rem);
      font-weight: 800;
      letter-spacing: -.02em;
      line-height: 1.2;
    }
    .server-text p { color: var(--muted); font-size: 15px; line-height: 1.75; }
    .server-stats {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 8px;
    }
    .stat-box {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 20px;
    }
    .stat-box .num {
      font-family: var(--font-display);
      font-size: 2rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 4px;
    }
    .stat-box .label { font-size: 12px; color: var(--muted); font-weight: 500; }

    /* CSS server rack visual */
    .server-visual {
      position: relative;
      height: 420px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .rack {
      width: 220px;
      background: #070e1a;
      border: 1px solid rgba(0,200,255,0.2);
      border-radius: 8px;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      box-shadow: 0 0 60px rgba(0,200,255,0.08), inset 0 0 30px rgba(0,0,0,0.5);
      position: relative;
      z-index: 1;
    }
    .rack::before {
      content: '';
      position: absolute;
      top: -1px; left: 20px; right: 20px;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--accent), transparent);
    }
    .rack-unit {
      height: 28px;
      border-radius: 4px;
      background: #0a1628;
      border: 1px solid rgba(0,200,255,0.1);
      display: flex;
      align-items: center;
      padding: 0 8px;
      gap: 6px;
      position: relative;
      overflow: hidden;
    }
    .rack-unit::before {
      content: '';
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 3px;
      background: var(--accent);
      opacity: 0.7;
    }
    .rack-unit.active::before { background: var(--green); animation: blink 2s ease-in-out infinite; }
    .rack-unit.warn::before { background: #f5a623; }
    @keyframes blink { 0%,100%{opacity:.7} 50%{opacity:1} }

    .rack-led {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 6px var(--green);
      animation: blink 1.5s ease-in-out infinite;
      flex-shrink: 0;
    }
    .rack-led.off { background: #1a2a3a; box-shadow: none; animation: none; }
    .rack-led.warn { background: #f5a623; box-shadow: 0 0 6px #f5a623; }
    .rack-lines {
      flex: 1;
      display: flex;
      gap: 3px;
      align-items: center;
    }
    .rack-line {
      height: 3px;
      border-radius: 2px;
      background: rgba(0,200,255,0.15);
    }

    /* floating glow orbs behind rack */
    .server-visual::before {
      content: '';
      position: absolute;
      width: 300px; height: 300px;
      background: radial-gradient(circle, rgba(0,200,255,0.12) 0%, transparent 70%);
      border-radius: 50%;
      left: 50%; top: 50%;
      transform: translate(-50%, -50%);
      z-index: 0;
    }
    .rack2 {
      position: absolute;
      width: 160px;
      right: 20px;
      top: 50%;
      transform: translateY(-50%);
      opacity: 0.5;
    }
    .rack3 {
      position: absolute;
      width: 140px;
      left: 10px;
      top: 50%;
      transform: translateY(-50%);
      opacity: 0.35;
    }

    /* scanning line animation */
    .scan-line {
      position: absolute;
      left: 12px; right: 12px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--accent), transparent);
      animation: scan 3s linear infinite;
      z-index: 2;
      opacity: 0.6;
    }
    @keyframes scan {
      0% { top: 12px; opacity: 0; }
      10% { opacity: 0.6; }
      90% { opacity: 0.6; }
      100% { top: calc(100% - 12px); opacity: 0; }
    }

    /* ── CLIENTS ── */
    .section-clients {
      background: var(--surface);
      padding: 80px 0;
      overflow: hidden;
    }
    .clients-heading {
      text-align: center;
      margin-bottom: 48px;
    }
    .clients-heading p {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: .18em;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 8px;
    }
    .clients-heading h2 {
      font-family: var(--font-display);
      font-size: 1.8rem;
      font-weight: 800;
    }

    /* scrolling ticker */
    .clients-track-wrap {
      overflow: hidden;
      position: relative;
      margin-bottom: 48px;
    }
    .clients-track-wrap::before,
    .clients-track-wrap::after {
      content: '';
      position: absolute;
      top: 0; bottom: 0;
      width: 120px;
      z-index: 2;
    }
    .clients-track-wrap::before { left: 0; background: linear-gradient(to right, var(--surface), transparent); }
    .clients-track-wrap::after  { right: 0; background: linear-gradient(to left, var(--surface), transparent); }

    .clients-track {
      display: flex;
      gap: 24px;
      animation: scroll-left 28s linear infinite;
      width: max-content;
    }
    .clients-track:hover { animation-play-state: paused; }
    @keyframes scroll-left {
      0%   { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }

    .client-logo-card {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 20px 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      white-space: nowrap;
      flex-shrink: 0;
      transition: border-color .2s;
    }
    .client-logo-card:hover { border-color: rgba(0,200,255,0.3); }
    .client-logo-icon {
      width: 32px; height: 32px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      flex-shrink: 0;
    }
    .client-logo-card span {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 14px;
      color: var(--muted);
      letter-spacing: .02em;
    }

    /* testimonial cards */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .testimonial-card {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 28px;
      display: flex;
      flex-direction: column;
      gap: 16px;
      transition: border-color .2s, transform .2s;
    }
    .testimonial-card:hover {
      border-color: rgba(0,200,255,0.25);
      transform: translateY(-3px);
    }
    .testimonial-stars { color: #f5a623; font-size: 13px; letter-spacing: 2px; }
    .testimonial-text {
      font-size: 14px;
      line-height: 1.7;
      color: var(--muted);
      font-style: italic;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--border);
    }
    .author-avatar {
      width: 38px; height: 38px;
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 15px;
      font-weight: 700;
      font-family: var(--font-display);
      flex-shrink: 0;
    }
    .author-info strong {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text);
    }
    .author-info span { font-size: 11px; color: var(--muted); }

    /* ── ABOUT ── */
    .section-about { background: var(--bg); }
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: start;
    }
    .about-grid > div:first-child { display: flex; flex-direction: column; gap: 16px; }
    .about-grid p { color: var(--muted); font-size: 15px; line-height: 1.75; }
    .about-list { display: flex; flex-direction: column; gap: 20px; }
    .about-item {
      background: var(--surface);
      border: 1px solid var(--border);
      border-left: 3px solid var(--accent);
      border-radius: 0 10px 10px 0;
      padding: 22px 24px;
    }
    .about-item h3 {
      font-family: var(--font-display);
      font-weight: 700;
      margin-bottom: 8px;
      font-size: 1rem;
      color: var(--accent);
    }
    .about-item p { color: var(--muted); font-size: 14px; line-height: 1.65; }

    /* ── CONTACT ── */
    .section-contact {
      background: var(--surface);
      position: relative;
      overflow: hidden;
    }
    .section-contact::before {
      content: '';
      position: absolute;
      top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      width: 600px; height: 600px;
      background: radial-gradient(circle, rgba(0,200,255,0.06) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .contact-panel {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 56px 60px;
    }
    .contact-panel .eyebrow { margin-bottom: 8px; }
    .contact-panel h2 {
      font-family: var(--font-display);
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .contact-panel p { color: var(--muted); font-size: 15px; max-width: 420px; }

    /* ── FOOTER ── */
    .site-footer {
      background: var(--bg);
      border-top: 1px solid var(--border);
      padding: 32px 0;
    }
    .footer-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    .footer-inner p { font-size: 13px; color: var(--muted); }

    /* ── RESPONSIVE ── */
    @media (max-width: 900px) {
      .hero-grid, .server-grid, .about-grid { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .testimonials-grid { grid-template-columns: 1fr; }
      .server-visual { height: 280px; }
      .contact-panel { flex-direction: column; text-align: center; padding: 40px 28px; }
      .nav-menu { display: none; }
    }