:root{
  --bg:#FFFFFF; --panel:#F3F5FB; --line:#DEE3F0;
  --ink:#131B3A; --muted:#4F5B7A;
  --primary:#2B3A8F; --primary-dark:#1F2C73; --primary-soft:#E8ECFA;
  --accent:#FF6B4A; --accent-dark:#E5542F; --accent-text:#C93E1A; --accent-on-dark:#FFC6B8;
  --radius:20px; --radius-sm:12px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Sora,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
img,svg{display:block}
a{color:var(--primary)}
h1,h2,h3{margin:0;line-height:1.1;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:min(var(--container),100% - 32px);margin-inline:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 24px;border-radius:999px;font-weight:700;font-size:15px;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;transition:background .15s,color .15s,border-color .15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-accent:hover{background:var(--accent-dark);color:var(--ink)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid var(--ink);outline-offset:3px;box-shadow:0 0 0 6px #fff}

/* brand */
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.wordmark{font-weight:800;font-size:17px;letter-spacing:-.02em;white-space:nowrap}
.wordmark span{color:var(--primary)}

/* topbar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;position:relative}
.nav{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:500}
.nav a{color:var(--ink);text-decoration:none}
.nav .btn-primary{color:#fff}
.nav a:not(.btn):hover{color:var(--primary)}
.nav .btn{min-height:44px;padding:10px 20px}
.lang{display:flex;gap:2px;border:1px solid var(--line);border-radius:999px;padding:3px}
.lang a{font-size:12px;font-weight:700;letter-spacing:.04em;padding:6px 10px;border-radius:999px;min-width:40px;text-align:center}
.lang a[aria-current]{background:var(--primary);color:#fff}
.menu-toggle{display:none;width:48px;height:48px;border:0;background:transparent;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:12px}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s,opacity .2s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{padding:72px 0 48px}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--primary);margin-bottom:18px}
.hero h1{font-size:clamp(38px,5.4vw,64px);font-weight:800;letter-spacing:-.035em;line-height:1.04}
.hero h1 em{font-style:normal;color:var(--accent-text)}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--muted);margin-top:22px;max-width:560px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.facts{display:flex;flex-wrap:wrap;gap:28px 40px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.facts li{display:flex;flex-direction:column;gap:2px}
.facts strong{font-size:22px;font-weight:800;letter-spacing:-.02em}
.facts span{font-size:13px;color:var(--muted)}

.hero-visual{position:relative;height:340px;max-width:440px;margin-inline:auto;width:100%}
.mock-web{position:absolute;left:0;top:24px;width:70%;height:240px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px;display:flex;flex-direction:column;gap:10px}
.mock-dots{display:flex;gap:6px}.mock-dots span{width:9px;height:9px;border-radius:50%;background:var(--line)}
.mock-banner{height:70px;border-radius:10px;background:var(--primary-soft)}
.mock-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.mock-grid div{height:54px;border-radius:8px;background:var(--line)}
.mock-label{font-size:12px;font-weight:700}
.mock-phone{position:absolute;right:0;top:0;width:36%;height:320px;background:var(--primary);border-radius:30px;padding:12px}
.mock-screen{height:100%;background:#fff;border-radius:20px;padding:14px;display:flex;flex-direction:column;gap:10px}
.mock-screen .mock-banner{height:84px;background:var(--accent)}
.mock-line{height:12px;border-radius:6px;background:var(--line)}.w80{width:80%}.w60{width:60%}
.mock-cta{margin-top:auto;height:36px;border-radius:18px;background:var(--primary);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}

/* clients */
.clients{padding:24px 0 56px}
.label{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips li{border:1px solid var(--line);border-radius:999px;padding:10px 18px;font-weight:700;font-size:15px;background:#fff}
.chips .chip-own{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary)}

/* sections */
.section{padding:88px 0}
.section-alt{background:var(--panel)}
.section-head{max-width:720px;margin-bottom:44px}
.section h2{font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.03em}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{background:var(--panel);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:12px}
.card .icon{width:40px;height:40px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-bottom:6px}
.card h3{font-size:20px;font-weight:700}
.card p{color:var(--muted);font-size:15px}

/* projects */
.projects{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.project{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-decoration:none;color:var(--ink);min-height:190px;transition:border-color .15s,transform .15s}
.project:hover{border-color:var(--primary);transform:translateY(-2px)}
.project-top{display:flex;flex-direction:column;gap:10px}
.project-name{font-size:20px;font-weight:800;letter-spacing:-.02em}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tags span{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:4px 10px}
.project p{color:var(--muted);font-size:14px;flex-grow:1}
.project-link{font-size:13px;font-weight:700;color:var(--primary)}
.project-own{background:var(--primary);color:#fff;border-color:var(--primary)}
.project-own p{color:#D8DEF7}
.project-own .tags span{background:rgba(255,255,255,.14);color:#fff}
.project-own .project-link{color:var(--accent-on-dark)}
.project-own:hover{border-color:var(--accent)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.steps li{display:flex;flex-direction:column;gap:10px;padding:28px 24px;border-top:3px solid var(--primary)}
.step-n{font-size:13px;font-weight:800;color:var(--accent-text);letter-spacing:.1em}
.steps h3{font-size:19px;font-weight:700}
.steps p{color:var(--muted);font-size:15px}

/* about */
.about{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:56px;align-items:start}
.about-copy p+p{margin-top:16px}
.about-copy h2{margin-bottom:22px}
.about-copy p{color:var(--muted);font-size:17px}
.about-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.about-facts li{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px;display:flex;flex-direction:column;gap:4px}
.about-facts strong{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--primary)}
.about-facts span{font-size:13px;color:var(--muted)}

/* contact */
.contact{background:var(--primary);color:#fff}
.contact-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}
.label-light{color:#C9D1F2}
.contact-copy h2{margin-bottom:18px}
.contact-copy>p{color:#D8DEF7;font-size:17px;max-width:460px}
.contact-list{margin-top:32px;display:flex;flex-direction:column;gap:14px;font-size:15px}
.contact-list li{display:flex;flex-direction:column;gap:2px}
.contact-list span{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#C9D1F2}
.contact-list a{color:#fff;font-weight:600;text-decoration:none}
.contact-list a:hover{color:var(--accent-on-dark)}
.contact-form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;gap:18px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700}
.field input,.field textarea{font:inherit;font-size:15px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);min-height:48px;resize:vertical}
.field input:focus,.field textarea:focus{outline:2px solid var(--primary);outline-offset:0;border-color:var(--primary)}
.contact-form .btn{align-self:flex-start}
.form-note{font-size:14px;color:var(--muted)}
.form-note[hidden]{display:none}

/* footer */
.footer{padding:32px 0;border-top:1px solid var(--line)}
.footer-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.footer p{font-size:13px;color:var(--muted)}

/* responsive */
@media (max-width:1024px){
  .cards,.projects,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:820px){
  .hero{padding:48px 0 32px}
  .hero-inner,.about,.contact-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual{height:300px;max-width:380px}
  .menu-toggle{display:flex}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 16px 16px}
  .nav.open{display:flex}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--line)}
  .lang{align-self:flex-start;margin:12px 0 4px}
.lang a{border-bottom:0!important;padding:8px 14px}
  .nav .btn{margin-top:12px;border-bottom:0}
  .section{padding:64px 0}
}
@media (max-width:520px){
  .cards,.projects,.steps,.about-facts{grid-template-columns:1fr}
  .hero-visual{height:260px}
  .mock-phone{height:260px}
  .mock-web{height:200px}
  .contact-form{padding:24px}
  .facts{gap:20px 28px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .project,.btn,.menu-toggle span{transition:none}
}