:root{
    --bg:#ffffff;
    --bg2:#F4F7FC;
    --ink:#14203A;
    --ink-soft:#5B6478;
    --line:#E4E9F2;
    --card:#ffffff;
    --primary:#2E6BE6;
    --primary-dark:#1E52C4;
    --primary-light:#EEF3FC;
    --navy:#101B33;
    --navy2:#1B2A4D;
    --accent:#0FA968;
    --radius:16px;
    --shadow:0 10px 28px rgba(20,32,58,0.07);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
    background:var(--bg);
    color:var(--ink);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:1280px;margin:0 auto;padding:0 32px}
  section{padding:84px 0}
  h1,h2,h3{font-family:'Sora',-apple-system,sans-serif;line-height:1.22;font-weight:600;letter-spacing:-0.01em}
  h2{font-size:clamp(26px,3.4vw,36px);margin-bottom:14px}
  .eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin-bottom:10px}
  .lead{font-size:17px;color:var(--ink-soft);max-width:640px}

  /* NAV */
  header{
    position:absolute;top:0;left:0;right:0;z-index:50;
    background:transparent;
  }
  .nav{display:flex;align-items:center;padding:22px 20px 0;max-width:1320px;margin:0 auto;gap:16px}
  .nav-pill{
    display:flex;align-items:center;justify-content:center;
    background:rgba(16,24,46,0.55);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,0.14);
    border-radius:999px;
    padding:10px 26px;
    min-width:0;
    flex:1 1 auto;
  }
  .nav > .btn{flex-shrink:0}
  .nav-center{display:flex;align-items:center;gap:26px;min-width:0}
  .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;font-family:'JetBrains Mono',monospace;color:#fff;letter-spacing:-.01em;flex-shrink:0}
  .brand .badge{
    width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  }
  .brand .badge svg{width:20px;height:20px}
  .nav-links{display:flex;gap:22px;font-size:13.5px;color:rgba(255,255,255,0.72);white-space:nowrap}
  .nav-links a:hover{color:#fff}
  @media (max-width:960px){ .nav-center{display:none} }

  .lang-switch{display:flex;gap:2px;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.16);border-radius:999px;padding:3px;flex-shrink:0}
  .lang-switch a{padding:5px 10px;border-radius:999px;font-size:12px;font-weight:600;color:rgba(255,255,255,0.65)}
  .lang-switch a.active{background:#fff;color:var(--navy)}
  .lang-switch a:not(.active):hover{color:#fff}

  .btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:12px 22px;border-radius:10px;font-weight:600;font-size:14.5px;
    border:1px solid transparent;cursor:pointer;
    transition:transform .25s cubic-bezier(.2,.8,.2,1), background .25s, border-color .25s, color .25s, box-shadow .25s;
  }
  .btn-primary{background:var(--primary);color:#fff}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-3px);box-shadow:0 10px 24px rgba(46,107,230,0.28)}
  .btn-ghost{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.35);color:#fff}
  .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,0.14);transform:translateY(-3px)}
  .btn:active{transform:translateY(0)}

  /* REVEAL ON SCROLL */
  .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1)}
  .reveal.in-view{opacity:1;transform:translateY(0)}
  .grid3 .card:nth-child(2){transition-delay:.12s}
  .grid3 .card:nth-child(3){transition-delay:.24s}
  .steps .step:nth-child(2){transition-delay:.1s}
  .steps .step:nth-child(3){transition-delay:.2s}
  .steps .step:nth-child(4){transition-delay:.3s}
  .case:nth-of-type(2){transition-delay:.1s}

  /* HERO */
  .hero{
    position:relative;
    background:
      linear-gradient(100deg, rgba(16,24,46,0.80) 0%, rgba(16,24,46,0.68) 38%, rgba(20,32,58,0.35) 100%),
      url('hero-bg.jpg') center/cover no-repeat;
    padding:132px 0 100px;
    overflow:hidden;
  }
  .hero .wrap{position:relative;z-index:1}
  .hero-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:48px;align-items:center}
  @media (max-width:960px){ .hero-grid{grid-template-columns:1fr} }
  .hero .eyebrow{color:#9CB4EE}
  .hero h1{font-size:clamp(32px,4.2vw,48px);color:#fff;text-shadow:0 2px 16px rgba(0,0,0,0.35)}
  .hero .accent{color:#7FA6F5}
  .hero .lead{color:#B9C4DE}
  .hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
  .hero-stats{display:flex;gap:36px;margin-top:52px;flex-wrap:wrap}
  .stat b{display:block;font-size:26px;color:#fff;font-family:'Sora',sans-serif;text-shadow:0 2px 12px rgba(0,0,0,0.4)}
  .stat span{font-size:13px;color:#93A0C2;text-shadow:0 1px 8px rgba(0,0,0,0.5)}

  /* HERO CARD PANEL */
  .hero-card{background:#fff;border-radius:18px;box-shadow:0 30px 60px rgba(6,10,24,0.35);overflow:hidden}
  .hc-head{padding:20px 22px 4px;font-family:'Sora',sans-serif;font-weight:600;font-size:15px;color:var(--ink)}
  .hc-row{
    display:flex;align-items:center;gap:14px;padding:16px 22px;border-top:1px solid var(--line);
    transition:background .25s;cursor:default;
  }
  .hc-row:hover{background:var(--primary-light)}
  .hc-ic{
    width:38px;height:38px;border-radius:10px;background:var(--primary-light);color:var(--primary);
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
  }
  .hc-ic svg{width:19px;height:19px}
  .hc-row b{display:block;font-size:14.5px;color:var(--ink);font-weight:600}
  .hc-row span{font-size:12.5px;color:var(--ink-soft)}
  .hc-arrow{margin-left:auto;color:var(--ink-soft);flex-shrink:0}
  .hc-foot{background:var(--primary-light);padding:14px 22px;font-size:12.5px;color:var(--primary-dark)}

  /* CODE DEMO (video-style, but real live code — honest alternative to stock footage) */
  .codedemo{background:var(--navy);padding:0}
  .cd-wrap{max-width:900px;margin:0 auto;padding:64px 24px}
  .cd-frame{
    background:#0D1220;border-radius:14px;overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,0.4);
    border:1px solid rgba(255,255,255,0.08);
  }
  .cd-bar{height:34px;background:#151B2C;display:flex;align-items:center;gap:6px;padding:0 14px;border-bottom:1px solid rgba(255,255,255,0.06)}
  .cd-bar i{width:9px;height:9px;border-radius:50%;display:block}
  .cd-bar i:nth-child(1){background:#FF5F57}
  .cd-bar i:nth-child(2){background:#FEBC2E}
  .cd-bar i:nth-child(3){background:#28C840}
  .cd-bar span{margin-left:12px;font-size:12px;color:#6B7590;font-family:'Sora',sans-serif}
  .cd-body{padding:26px 28px;font-family:'Menlo','Consolas',monospace;font-size:13.5px;line-height:1.7;min-height:220px}
  .cd-line{white-space:pre;color:#C7CEE8}
  .cd-line .k{color:#7FA6F5}
  .cd-line .s{color:#8FD7A8}
  .cd-line .c{color:#6B7590}
  .cd-line .f{color:#E3B879}
  .cd-cursor{display:inline-block;width:7px;height:15px;background:#7FA6F5;vertical-align:middle;animation:blink 1s step-end infinite}
  @keyframes blink{50%{opacity:0}}
  .cd-caption{text-align:center;color:#93A0C2;font-size:13px;margin-top:18px}

  /* browser mockups (used in portfolio) */
  .browser-frame{
    border-radius:12px;overflow:hidden;border:1px solid var(--line);
    background:#fff;box-shadow:var(--shadow);
  }
  .browser-bar{height:26px;background:#F4F7FC;display:flex;align-items:center;gap:6px;padding:0 12px;border-bottom:1px solid var(--line)}
  .browser-bar i{width:8px;height:8px;border-radius:50%;display:block}
  .browser-bar i:nth-child(1){background:#FF5F57}
  .browser-bar i:nth-child(2){background:#FEBC2E}
  .browser-bar i:nth-child(3){background:#28C840}
  .browser-frame img{width:100%;display:block}

  /* SERVICES */
  .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
  @media (max-width:820px){ .grid3{grid-template-columns:1fr} }
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    padding:28px;box-shadow:var(--shadow);
    transition:transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s, border-color .35s;
  }
  .card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(20,32,58,0.13);border-color:#C9D6F2}
  .card .ic{
    width:44px;height:44px;border-radius:10px;background:var(--primary-light);color:var(--primary);
    display:flex;align-items:center;justify-content:center;margin-bottom:16px;
    transition:transform .35s cubic-bezier(.2,.8,.2,1), background .35s;
  }
  .card .ic svg{width:22px;height:22px}
  .card:hover .ic{transform:scale(1.12) rotate(-4deg);background:var(--primary);color:#fff}
  .card h3{font-size:18px;margin-bottom:8px}
  .card p{font-size:14.5px;color:var(--ink-soft)}

  /* STACK */
  .stack-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
  .stack-chip{
    display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
    border-radius:999px;padding:10px 18px;font-size:13.5px;color:var(--ink-soft);font-weight:500;
  }
  .stack-chip b{color:var(--ink);font-weight:600}
  .stack-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--primary)}

  /* TESTIMONIALS */
  .t-marquee{margin-top:36px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
  .t-track{display:flex;gap:20px;width:max-content;animation:tScroll 38s linear infinite}
  .t-marquee:hover .t-track{animation-play-state:paused}
  @keyframes tScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
  .t-card{
    flex:0 0 320px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;box-shadow:var(--shadow);
  }
  .t-quote{font-size:26px;color:var(--primary);font-weight:800;line-height:1;margin-bottom:10px;font-family:'Sora',sans-serif}
  .t-text{font-size:14.5px;color:var(--ink-soft);margin-bottom:20px}
  .t-person{display:flex;align-items:center;gap:10px}
  .t-avatar{
    width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    color:#fff;font-family:'Sora',sans-serif;font-weight:600;font-size:13px;
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
  }
  .t-name{font-size:13.5px;font-weight:600;color:var(--ink)}
  .t-role{font-size:12px;color:var(--ink-soft)}
  .t-note{font-size:12.5px;color:var(--ink-soft);margin-top:24px;opacity:.8}

  /* FAQ */
  .faq-cols{display:grid;grid-template-columns:1.2fr 0.8fr;gap:44px;align-items:center;margin-top:36px}
  @media (max-width:860px){ .faq-cols{grid-template-columns:1fr} }
  .faq-photo{border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
  .faq-photo img{width:100%;display:block}
  .faq{max-width:760px;margin-top:0}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 4px;cursor:pointer;font-family:'Sora',sans-serif;font-weight:600;font-size:15.5px;color:var(--ink);
  }
  .faq-q .plus{font-size:20px;color:var(--primary);transition:transform .3s;flex-shrink:0}
  .faq-item.open .faq-q .plus{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
  .faq-a p{font-size:14px;color:var(--ink-soft);padding:0 4px 20px}
  .faq-item.open .faq-a{max-height:200px}

  /* PORTFOLIO */
  .portfolio{background:var(--bg2)}
  .case{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:28px;box-shadow:var(--shadow);margin-top:24px;
    display:grid;grid-template-columns:320px 1fr;gap:28px;align-items:center;
    transition:transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s;
  }
  .case:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(20,32,58,0.12)}
  .case .browser-frame{transition:transform .35s cubic-bezier(.2,.8,.2,1)}
  .case:hover .browser-frame{transform:scale(1.03)}
  @media (max-width:760px){ .case{grid-template-columns:1fr} }
  .case h3{font-size:19px;margin-bottom:6px}
  .case .tag{font-size:12.5px;color:var(--primary);font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;display:block}
  .case p{font-size:14.5px;color:var(--ink-soft);margin-bottom:12px}
  .case ul{margin:0;padding-left:18px;font-size:14px;color:var(--ink-soft)}
  .case li{margin-bottom:4px}

  /* ABOUT */
  .about{background:var(--bg2)}
  .about-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:48px;align-items:center}
  @media (max-width:860px){ .about-grid{grid-template-columns:1fr} }
  .about-photos{display:flex;flex-direction:column;gap:16px}
  .about-photo{border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
  .about-photo img{width:100%;display:block}
  .about-photo.small{aspect-ratio:16/9}
  .about-photo.small img{height:100%;object-fit:cover}
  .about-text p{font-size:15.5px;color:var(--ink-soft);margin-bottom:16px}
  .about-text p:last-child{margin-bottom:0}

  /* PROCESS */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}
  @media (max-width:820px){ .steps{grid-template-columns:1fr 1fr} }
  @media (max-width:480px){ .steps{grid-template-columns:1fr} }
  .step{position:relative;padding-top:8px}
  .step .num{
    width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;
    display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:14px;
    transition:transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s;
  }
  .step:hover .num{transform:scale(1.15);box-shadow:0 8px 20px rgba(46,107,230,0.3)}
  .step h4{font-size:15.5px;margin-bottom:6px}
  .step p{font-size:13.5px;color:var(--ink-soft)}

  /* PRINCIPLES */
  .grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}
  @media (max-width:920px){ .grid4{grid-template-columns:1fr 1fr} }
  @media (max-width:520px){ .grid4{grid-template-columns:1fr} }
  .pr-card{
    background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);
    transition:transform .35s cubic-bezier(.2,.8,.2,1);
  }
  .pr-card:hover{transform:translateY(-5px)}
  .pr-card .q{font-size:26px;color:var(--primary);line-height:1;margin-bottom:10px;font-weight:800;font-family:'Sora',sans-serif}
  .pr-card p{font-size:14px;color:var(--ink-soft)}

  /* CONTACT */
  .contact{background:linear-gradient(135deg,var(--navy2),var(--primary));color:#fff;border-radius:24px;margin:0 24px;padding:64px 40px;text-align:center}
  .contact h2{color:#fff}
  .contact p{color:#C9D6F2;max-width:520px;margin:0 auto 32px}
  .contact-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
  .contact .btn-primary{background:#fff;color:var(--primary-dark)}
  .contact .btn-primary:hover{background:#EEF3FC}
  .contact-direct{margin-top:28px;font-size:14.5px;color:#C9D6F2}
  .contact-direct a{color:#fff;font-weight:600}

  footer{padding:32px 24px;text-align:center;font-size:13px;color:var(--ink-soft)}

  /* FLOATING TG BUTTON */
  .float-tg{
    position:fixed;left:24px;bottom:24px;z-index:60;
    width:52px;height:52px;border-radius:50%;
    background:#2AABEE;color:#fff;display:flex;align-items:center;justify-content:center;
    box-shadow:0 10px 24px rgba(20,32,58,0.28);
    transition:transform .25s cubic-bezier(.2,.8,.2,1);
  }
  .float-tg:hover{transform:scale(1.08)}

  /* SERVICE SUBPAGE */
  .card-link{margin-top:16px;font-size:13.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
  .card-link:hover{text-decoration:underline}
  .hc-row{cursor:pointer}

  .crumbs{font-size:13px;color:var(--ink-soft);margin-bottom:18px}
  .crumbs a:hover{color:var(--primary)}
  .crumbs span{margin:0 6px;opacity:.6}

  .sp-photo-band{position:relative;height:280px;overflow:hidden}
  .sp-photo-band img{width:100%;height:100%;object-fit:cover;object-position:center 20%}
  .sp-photo-band .cap{
    position:absolute;left:0;right:0;bottom:0;padding:18px 32px;
    background:linear-gradient(0deg,rgba(16,27,51,0.85),transparent);
    color:#fff;font-size:13.5px;
  }

  .sp-hero{
    position:relative;padding:132px 0 64px;
    background:linear-gradient(135deg,var(--navy),var(--navy2));
  }
  .sp-hero .eyebrow{color:#9CB4EE}
  .sp-hero h1{color:#fff;font-size:clamp(28px,3.8vw,42px);max-width:760px}
  .sp-hero p{color:#B9C4DE;font-size:16px;max-width:640px;margin-top:14px}
  .sp-hero .crumbs{color:#93A0C2}
  .sp-hero .crumbs a{color:#C9D6F2}

  .sp-section{padding:64px 0}
  .sp-cols{display:grid;grid-template-columns:1.3fr 0.9fr;gap:40px;align-items:start}
  @media (max-width:860px){ .sp-cols{grid-template-columns:1fr} }
  .sp-list{list-style:none;margin-top:8px}
  .sp-list li{
    display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink-soft);
  }
  .sp-list li:last-child{padding-bottom:0}
  .sp-list li svg{flex-shrink:0;width:20px;height:20px;color:var(--accent);margin-top:2px}
  .sp-side{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
  .sp-side h4{font-family:'Sora',sans-serif;font-size:15px;margin-bottom:14px}
  .sp-side .row{display:flex;justify-content:space-between;font-size:13.5px;padding:10px 0;border-top:1px solid var(--line);color:var(--ink-soft)}
  .sp-side .row:first-of-type{border-top:none}
  .sp-side .row b{color:var(--ink);font-weight:600}
  .sp-related{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
  .sp-related a{
    font-size:13px;font-weight:600;color:var(--ink);background:#fff;border:1px solid var(--line);
    border-radius:999px;padding:8px 16px;
  }
  .sp-related a:hover{border-color:var(--primary);color:var(--primary)}
  .float-tg svg{width:26px;height:26px}