:root{
  --navy:#0E2238; --ink:#10212A; --text:#1B2A39; --muted:#6C7A89; --bg:#F7F9FC;
  --accent:#6C5CE7; --accent2:#00C2FF; --accent3:#25D366;
}
:root[data-theme="deep"] {
  --navy:#0C1726; --ink:#10212A; --text:#172433; --muted:#6B7C8F; --bg:#F4F7FB;
  --accent:#3E5BF2; --accent2:#0AB3FF; --accent3:#1DB954;
}
:root[data-theme="vibrant"] {
  --navy:#101321; --ink:#18202B; --text:#172433; --muted:#6B7C8F; --bg:#F9FBFF;
  --accent:#9B51E0; --accent2:#2F80ED; --accent3:#27AE60;
}
:root[data-theme="dark"] {
  --navy:#0B0F1A; --ink:#C9D6E2; --text:#E6EEF6; --muted:#99A7B5; --bg:#0E1320;
  --accent:#8A7CFF; --accent2:#37D0FF; --accent3:#2BD47D;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 'Inter', system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
.container{width:min(1120px,92%);margin-inline:auto}
a{color:var(--accent)}
.site-header{background:linear-gradient(120deg,var(--bg) 0%, #F3F7FF 40%, #EEF4FF 60%, var(--bg) 100%)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;gap:10px;align-items:center;color:var(--navy);text-decoration:none;font-weight:700}
.brand-logo{height:40px;width:auto;display:block}
.menu{display:flex;gap:22px;align-items:center;list-style:none;margin:0;padding:0}
.menu a{text-decoration:none;color:var(--ink);font-weight:600}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;border:1px solid transparent;text-decoration:none}
.btn-primary{background:linear-gradient(90deg,var(--accent2),var(--accent));color:white}
.btn-ghost{border-color:var(--accent);color:var(--accent)}
.burger{display:none;background:none;border:none;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:1px}

.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;padding:36px 0 64px}
.hero h1{font-size:clamp(28px,3.4vw,46px);letter-spacing:-0.02em;margin:0;color:var(--navy)}
.hero p{color:var(--ink)}
.grad{background:linear-gradient(90deg,var(--accent2),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-art{position:relative;min-height:260px}
.hero-art .orb{position:absolute;inset:auto 20% 10% auto;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle at 30% 30%, rgba(0,194,255,.7), rgba(108,92,231,.5) 50%, rgba(108,92,231,0) 70%);filter:blur(10px)}
.hero-art .card{position:relative;background:white;border-radius:14px;box-shadow:0 10px 30px rgba(16,33,42,.08);padding:18px 20px;max-width:360px;border:1px solid #eef2f7}
.hero-art .card h3{margin:0 0 10px}
.tagline{margin-top:12px;color:var(--muted)}

.section{padding:56px 0}
.section h2{font-size:clamp(24px,3vw,36px);margin:0 0 22px;color:var(--navy)}
.section-alt{background:#ffffff}
.grid.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card.service{background:white;border:1px solid #eef2f7;border-radius:14px;padding:18px;box-shadow:0 8px 20px rgba(16,33,42,.05)}
.card.service h3{margin-top:0}
.bullets{padding-left:18px;color:var(--ink)}

.about{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.pill-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.pill{background:linear-gradient(90deg,var(--accent2),var(--accent));color:white;padding:6px 10px;border-radius:100px;font-size:12px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.stats div{background:white;padding:16px;border-radius:12px;text-align:center;border:1px solid #eef2f7;box-shadow:0 8px 20px rgba(16,33,42,.05)}
.stats strong{display:block;font-size:22px;color:var(--navy)} 
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.steps li{list-style:none;background:white;padding:16px;border:1px solid #eef2f7;border-radius:12px;box-shadow:0 8px 20px rgba(16,33,42,.05)}
.steps li span{display:inline-block;min-width:36px;text-align:center;border-radius:8px;margin-right:8px;background:linear-gradient(90deg,var(--accent2),var(--accent));color:#fff;padding:4px 8px}

.contact-form{background:white;border:1px solid #eef2f7;border-radius:14px;padding:18px;box-shadow:0 8px 20px rgba(16,33,42,.05)}
.contact-form .grid.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:block;font-weight:600;color:var(--ink)}
input,select,textarea{width:100%;padding:10px;border:1px solid #d8dee8;border-radius:10px;margin-top:6px;font:inherit}
.form-note{color:var(--muted);margin-left:10px}

.footer{border-top:1px solid #e6ecf5;background:#fff;padding:20px 0;margin-top:40px}
.foot{display:flex;align-items:center;justify-content:space-between}
.foot-logo{height:34px;width:auto;margin-right:10px}
.foot-left{display:flex;align-items:center;gap:10px;color:var(--muted)}

@media (max-width: 1080px){
  .grid.cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 640px){
  .menu{display:none;position:absolute;right:4%;top:64px;background:#fff;border:1px solid #e7ecf5;border-radius:10px;padding:10px;flex-direction:column;gap:10px;box-shadow:0 10px 30px rgba(16,33,42,.1)}
  .burger{display:block}
  .grid.cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
}
.hidden{display:none}