:root{
  --bg:#ffffff;
  --bg-2:#f3f7ff;
  --bg-3:#eef3fe;
  --card:#ffffff;
  --line:#e7ecf6;
  --text:#0f1b34;
  --muted:#5d6b8a;
  --accent:#06b6d4;     /* cyan */
  --accent-2:#3b82f6;   /* blue */
  --violet:#7c3aed;
  --rose:#f43f5e;
  --amber:#f59e0b;
  --green:#10b981;
  --grad:linear-gradient(135deg,#06b6d4,#3b82f6);
  --grad-fun:linear-gradient(120deg,#06b6d4,#3b82f6 45%,#7c3aed);
  --shadow:0 18px 40px -22px rgba(28,55,120,.45);
  --shadow-sm:0 8px 22px -14px rgba(28,55,120,.4);
  --radius:20px;
  --maxw:1140px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;
  line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* NAV */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:1.22rem;letter-spacing:-.02em;color:var(--text)}
.brand-mark{color:var(--accent)}
.brand-accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-links a{color:var(--muted);font-size:.95rem;font-weight:600;transition:color .15s}
.nav-links a:hover{color:var(--accent-2)}
.lang-toggle{margin-left:16px;background:#fff;border:1.5px solid var(--line);color:var(--accent-2);
  font-weight:700;border-radius:999px;padding:7px 14px;cursor:pointer;font-size:.88rem;transition:border-color .15s,color .15s}
.lang-toggle:hover{border-color:var(--accent);color:var(--accent)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.2s}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad);color:#fff;font-weight:700;border:0;border-radius:999px;
  padding:11px 22px;cursor:pointer;transition:transform .14s,box-shadow .2s,filter .2s;
  box-shadow:0 10px 24px -10px rgba(59,130,246,.65);font-size:.96rem}
.btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 16px 30px -10px rgba(59,130,246,.7);filter:saturate(1.1)}
.btn:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:9px 18px;font-size:.9rem}
.btn-lg{padding:15px 30px;font-size:1.04rem}
.btn-ghost{background:#fff;color:var(--accent-2);border:1.5px solid var(--line);box-shadow:none}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);background:#fff}
.btn-wa{background:linear-gradient(135deg,#25d366,#1ebe57);color:#fff;box-shadow:0 10px 24px -10px rgba(37,211,102,.6);margin-top:18px}

/* HERO */
.hero{position:relative;overflow:hidden;padding:104px 0 84px;background:var(--bg)}
.hero-glow{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero-glow::before,.hero-glow::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.hero-glow::before{width:420px;height:420px;left:-80px;top:-120px;background:radial-gradient(circle,#22d3ee,transparent 70%)}
.hero-glow::after{width:460px;height:460px;right:-110px;top:-60px;background:radial-gradient(circle,#a78bfa,transparent 70%)}
.hero-inner{position:relative;text-align:center;max-width:860px}
.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--accent-2);font-weight:700;font-size:.82rem;
  letter-spacing:.06em;text-transform:uppercase;
  border:1px solid #d6e4ff;border-radius:999px;padding:7px 16px;background:#eef4ff;box-shadow:var(--shadow-sm)}
.eyebrow::before{content:"✦";color:var(--violet)}
.hero h1{font-size:clamp(2.2rem,5.8vw,3.9rem);line-height:1.07;letter-spacing:-.03em;margin:22px 0 18px;font-weight:850}
.grad{background:var(--grad-fun);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:clamp(1.04rem,2vw,1.2rem);max-width:700px;margin:0 auto}
.hero-slogan{display:inline-flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px;margin:26px auto 0;
  max-width:100%;font-weight:800;font-size:clamp(1rem,2.2vw,1.28rem);letter-spacing:-.01em;color:var(--text);
  background:#fff;border:1px solid #d6e4ff;border-radius:18px;padding:12px 22px;box-shadow:var(--shadow-sm)}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin:28px 0 44px}
.hero-stats{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-stats div{background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:16px 26px;min-width:158px;box-shadow:var(--shadow-sm);transition:transform .15s}
.hero-stats div:hover{transform:translateY(-4px)}
.hero-stats strong{display:block;font-size:1.3rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{color:var(--muted);font-size:.86rem}

/* SECTIONS */
.section{padding:84px 0}
.section-alt{background:var(--bg-2)}
.kicker{display:inline-block;color:var(--violet);font-weight:700;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;margin:0 0 10px}
.section h2{font-size:clamp(1.8rem,3.8vw,2.6rem);letter-spacing:-.02em;margin:0 0 12px;font-weight:850}
.section-sub{color:var(--muted);max-width:640px;margin:0 0 40px;font-size:1.06rem}

/* GRID + CARDS */
.grid{display:grid;gap:20px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow-sm);transition:transform .16s,box-shadow .2s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card-ico{width:54px;height:54px;display:grid;place-items:center;border-radius:16px;
  font-size:1.4rem;font-weight:700;margin-bottom:16px;color:#fff}
.card h3{margin:0 0 8px;font-size:1.14rem}
.card p{margin:0;color:var(--muted);font-size:.96rem}
/* playful rotating icon colors */
.grid .card:nth-child(6n+1) .card-ico{background:linear-gradient(135deg,#06b6d4,#3b82f6)}
.grid .card:nth-child(6n+2) .card-ico{background:linear-gradient(135deg,#7c3aed,#a855f7)}
.grid .card:nth-child(6n+3) .card-ico{background:linear-gradient(135deg,#f43f5e,#fb7185)}
.grid .card:nth-child(6n+4) .card-ico{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.grid .card:nth-child(6n+5) .card-ico{background:linear-gradient(135deg,#10b981,#34d399)}
.grid .card:nth-child(6n+6) .card-ico{background:linear-gradient(135deg,#3b82f6,#6366f1)}
.solutions-note{margin:36px 0 0;color:var(--muted);background:var(--bg-3);border:1px dashed #cdddff;border-radius:14px;padding:16px 20px}
.solutions-note a{color:var(--accent-2);font-weight:700}

/* TECHNOLOGIES / LOGO WALL */
.tech-group{margin-bottom:30px}
.tech-cat{font-size:.82rem;color:var(--muted);text-transform:uppercase;letter-spacing:.12em;font-weight:700;margin:0 0 14px}
.logo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:14px}
.logo-chip{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:11px;
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 14px;box-shadow:var(--shadow-sm);
  transition:transform .15s,box-shadow .2s,border-color .15s}
.logo-chip img{height:40px;width:auto;max-width:90%;object-fit:contain;
  filter:grayscale(1);opacity:.62;transition:filter .25s,opacity .25s}
.logo-chip span{font-size:.8rem;color:#475569;font-weight:700}
.logo-chip:hover{transform:translateY(-4px);border-color:#bfe3ff;box-shadow:var(--shadow)}
.logo-chip:hover img{filter:none;opacity:1}

/* WHY */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.why-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.why-list li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px 16px 46px;color:var(--muted);position:relative;box-shadow:var(--shadow-sm)}
.why-list li::before{content:"✓";position:absolute;left:16px;top:16px;width:20px;height:20px;border-radius:50%;
  background:var(--grad);color:#fff;font-size:.72rem;font-weight:800;display:grid;place-items:center}
.why-list strong{color:var(--text);display:block;margin-bottom:2px}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow-sm);transition:transform .16s}
.step:hover{transform:translateY(-5px)}
.step-n{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:14px;
  background:var(--grad);color:#fff;font-weight:800;font-size:1.1rem;margin-bottom:14px}
.step:nth-child(2) .step-n{background:linear-gradient(135deg,#7c3aed,#a855f7)}
.step:nth-child(3) .step-n{background:linear-gradient(135deg,#f43f5e,#fb7185)}
.step:nth-child(4) .step-n{background:linear-gradient(135deg,#10b981,#34d399)}
.step h3{margin:0 0 6px}
.step p{margin:0;color:var(--muted);font-size:.95rem}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.contact-list{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:12px}
.contact-list li{display:flex;align-items:center;gap:14px}
.contact-label{display:inline-block;width:92px;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.contact-list a{color:var(--accent-2);font-weight:700}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.88rem;color:var(--text);font-weight:600;margin-bottom:6px}
.field input,.field textarea{width:100%;background:#fff;border:1.5px solid var(--line);
  border-radius:12px;padding:12px 14px;color:var(--text);font:inherit;font-size:.96rem;transition:border-color .15s,box-shadow .15s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(6,182,212,.12)}
.field textarea{resize:vertical}
.form-hint{margin:14px 0 0;color:var(--muted);font-size:.86rem}
.form-hint.ok{color:var(--green);font-weight:600}
.form-hint.err{color:var(--rose);font-weight:600}

/* FOOTER */
.footer{background:var(--bg-2);border-top:1px solid var(--line);padding:48px 0 26px}
.footer-inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:26px;border-bottom:1px solid var(--line)}
.footer-brand .brand{color:var(--text)}
.footer-brand p{color:var(--muted);margin:8px 0 0;max-width:320px;font-size:.94rem}
.footer-links{display:flex;gap:22px;flex-wrap:wrap}
.footer-links a{color:var(--muted);font-size:.94rem;font-weight:600}
.footer-links a:hover{color:var(--accent-2)}
.footer-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:.85rem;padding-top:22px}

/* AI CHAT WIDGET */
.ai-widget{position:fixed;right:20px;bottom:20px;z-index:80}
.ai-launcher{display:inline-flex;align-items:center;gap:9px;background:var(--grad-fun);color:#fff;font-weight:700;
  border:0;border-radius:999px;padding:13px 20px;cursor:pointer;font-size:.96rem;
  box-shadow:0 14px 34px -10px rgba(124,58,237,.6);transition:transform .15s,box-shadow .2s}
.ai-launcher:hover{transform:translateY(-3px) scale(1.03)}
.ai-launcher-ico{font-size:1.1rem;animation:aipulse 2.4s ease-in-out infinite}
@keyframes aipulse{0%,100%{opacity:1}50%{opacity:.45}}
.ai-panel{width:min(92vw,380px);height:min(72vh,540px);background:#fff;border:1px solid var(--line);
  border-radius:20px;box-shadow:0 30px 70px -24px rgba(28,55,120,.6);display:flex;flex-direction:column;overflow:hidden}
.ai-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:15px 18px;
  background:var(--grad-fun);color:#fff}
.ai-head strong{display:block;font-size:1.02rem}
.ai-sub{font-size:.78rem;opacity:.9}
.ai-close{background:rgba(255,255,255,.2);border:0;color:#fff;width:30px;height:30px;border-radius:50%;
  font-size:1.3rem;line-height:1;cursor:pointer}
.ai-close:hover{background:rgba(255,255,255,.35)}
.ai-log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--bg-2)}
.ai-msg{max-width:85%;padding:10px 14px;border-radius:14px;font-size:.92rem;line-height:1.5;white-space:pre-wrap;word-wrap:break-word}
.ai-ai{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px;color:var(--text)}
.ai-user{align-self:flex-end;background:var(--grad);color:#fff;border-bottom-right-radius:4px}
.ai-typing{color:var(--muted);letter-spacing:3px}
.ai-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:#fff}
.ai-form input{flex:1;border:1.5px solid var(--line);border-radius:999px;padding:11px 15px;font:inherit;font-size:.93rem}
.ai-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(6,182,212,.12)}
.ai-form button{flex:0 0 auto;width:42px;border:0;border-radius:50%;background:var(--grad);color:#fff;font-size:1rem;cursor:pointer;transition:transform .14s}
.ai-form button:hover{transform:scale(1.08)}
@media (max-width:560px){.ai-widget{right:14px;bottom:14px}.ai-launcher-txt{display:none}.ai-launcher{padding:14px}}

/* RESPONSIVE */
@media (max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .why-grid,.contact-grid{grid-template-columns:1fr;gap:34px}
}
@media (max-width:640px){
  .nav-links{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:stretch;
    gap:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 22px 18px;box-shadow:var(--shadow);
    transform:translateY(-130%);transition:transform .25s;height:auto}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links .btn{margin-top:12px;border-bottom:0}
  .nav-toggle{display:flex}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .grid-4,.grid-3,.steps{grid-template-columns:1fr}
  .hero{padding:64px 0 52px}
  .section{padding:56px 0}
  .lang-toggle{margin-left:8px;padding:6px 11px;font-size:.82rem}
  .hero-slogan{padding:11px 16px}
  .container{padding:0 18px}
}