:root{
  --rk-navy:#0f172a;
  --rk-navy-2:#172554;
  --rk-text:#1e293b;
  --rk-muted:#64748b;
  --rk-soft:#f8fbff;
  --rk-line:#e5ecfa;
  --rk-blue:#2563eb;
  --rk-cyan:#00c2ff;
  --rk-purple:#8b3dff;
  --rk-gradient:linear-gradient(135deg,#00c2ff 0%,#3b65ff 48%,#8b3dff 100%);
  --rk-shadow:0 24px 70px rgba(15,23,42,.12);
  --rk-radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:#fff;
  color:var(--rk-text);
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.gradient-text{background:var(--rk-gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.section{padding:92px 0}.section-tag{display:inline-flex;align-items:center;gap:8px;color:#2563eb;background:#eff6ff;border:1px solid #dbeafe;padding:8px 12px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.section-title{font-size:clamp(30px,4vw,48px);line-height:1.06;margin:16px 0 16px;color:var(--rk-navy);letter-spacing:-.04em}.section-desc{font-size:17px;color:var(--rk-muted);line-height:1.75;max-width:680px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 22px;border-radius:14px;font-weight:800;border:1px solid transparent;transition:.25s ease;cursor:pointer}.btn-primary{background:var(--rk-gradient);color:#fff;box-shadow:0 14px 34px rgba(59,101,255,.28)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 44px rgba(59,101,255,.36)}.btn-secondary{background:#fff;border-color:#dbe5f6;color:var(--rk-navy)}.btn-secondary:hover{border-color:#8bb2ff;transform:translateY(-2px)}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.75)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}.logo img{height:42px}.nav-menu{display:flex;align-items:center;gap:31px;font-size:14px;font-weight:800;color:#334155}.nav-menu a{position:relative}.nav-menu a:after{content:"";position:absolute;left:0;bottom:-8px;width:0;height:3px;border-radius:999px;background:var(--rk-gradient);transition:.25s}.nav-menu a:hover:after,.nav-menu a.active:after{width:100%}.menu-toggle{display:none;width:44px;height:44px;border:0;background:#f1f5f9;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px}.menu-toggle span{width:20px;height:2px;background:var(--rk-navy);border-radius:3px}.hero{position:relative;padding:136px 0 76px;background:radial-gradient(circle at 82% 16%,rgba(0,194,255,.15),transparent 30%),radial-gradient(circle at 58% 36%,rgba(139,61,255,.15),transparent 26%),linear-gradient(180deg,#fff 0%,#f9fbff 100%)}.hero:before{content:"";position:absolute;right:-160px;top:74px;width:360px;height:360px;border-radius:999px;background:var(--rk-gradient);opacity:.08;filter:blur(8px)}.hero-grid{display:grid;grid-template-columns:1fr 1.04fr;align-items:center;gap:46px}.hero h1{font-size:clamp(42px,5vw,68px);line-height:.99;color:var(--rk-navy);margin:18px 0 20px;letter-spacing:-.055em}.hero p{font-size:18px;line-height:1.8;color:#475569;max-width:620px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:32px 0 34px}.hero-stats{display:flex;gap:18px;flex-wrap:wrap}.hero-stat{padding:14px 18px;background:rgba(255,255,255,.76);border:1px solid #e8eefb;border-radius:18px;box-shadow:0 16px 45px rgba(15,23,42,.07)}.hero-stat strong{display:block;color:var(--rk-navy);font-size:22px}.hero-stat span{display:block;color:var(--rk-muted);font-size:13px;font-weight:700}.hero-visual{position:relative}.hero-visual img{filter:drop-shadow(0 28px 45px rgba(15,23,42,.14));animation:float 6s ease-in-out infinite}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}.services{background:#fff}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service-card,.feature-card,.project-card,.contact-card{background:#fff;border:1px solid var(--rk-line);border-radius:var(--rk-radius);box-shadow:0 18px 50px rgba(15,23,42,.06);transition:.25s}.service-card{padding:30px}.service-card:hover,.project-card:hover{transform:translateY(-6px);box-shadow:var(--rk-shadow);border-color:#cbdcff}.service-icon{width:56px;height:56px;border-radius:18px;background:#eff6ff;display:grid;place-items:center;color:#2563eb;font-size:26px;margin-bottom:22px}.service-card:nth-child(3n+2) .service-icon{background:#ecfeff;color:#0891b2}.service-card:nth-child(3n) .service-icon{background:#f3e8ff;color:#7c3aed}.service-card h3{margin:0 0 12px;color:var(--rk-navy);font-size:21px}.service-card p{margin:0;color:var(--rk-muted);line-height:1.7}.benefits{background:linear-gradient(180deg,#f8fbff 0%,#fff 100%)}.features-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:34px}.feature-card{padding:24px}.feature-card i{width:42px;height:42px;border-radius:14px;background:#eef5ff;display:grid;place-items:center;color:#2563eb;margin-bottom:18px}.feature-card h3{font-size:17px;margin:0 0 8px;color:var(--rk-navy)}.feature-card p{font-size:14px;line-height:1.6;color:var(--rk-muted);margin:0}.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.project-card{overflow:hidden}.project-card img{width:100%;height:190px;object-fit:cover}.project-body{padding:22px}.project-body h3{font-size:20px;color:var(--rk-navy);margin:0 0 12px}.tags{display:flex;gap:8px;flex-wrap:wrap}.tags span{background:#eef5ff;color:#2563eb;border-radius:999px;padding:7px 10px;font-size:12px;font-weight:800}.about{background:#fff}.about-grid{display:grid;grid-template-columns:1fr .9fr;gap:54px;align-items:center}.about-points{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:28px}.about-point{padding:18px;border:1px solid var(--rk-line);border-radius:18px;background:#fff}.about-point strong{display:block;font-size:24px;color:var(--rk-navy)}.about-point span{font-size:13px;color:var(--rk-muted);font-weight:800}.about-img{position:relative}.about-img:after{content:"";position:absolute;inset:auto 8% -4% auto;width:150px;height:150px;background:var(--rk-gradient);border-radius:42px;opacity:.12;z-index:-1}.contact{background:linear-gradient(135deg,#0f172a 0%,#172554 58%,#241255 100%);color:#fff;position:relative;overflow:hidden}.contact:before{content:"";position:absolute;inset:-120px -100px auto auto;width:340px;height:340px;background:#00c2ff;filter:blur(90px);opacity:.22}.contact .section-title,.contact .section-desc{color:#fff}.contact .section-desc{opacity:.75}.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;position:relative}.form-card,.contact-card{background:rgba(255,255,255,.98);border-radius:28px;padding:30px;color:var(--rk-text);box-shadow:0 30px 80px rgba(0,0,0,.25)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:8px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:900;color:#334155}.field input,.field textarea{width:100%;border:1px solid #dfe7f5;border-radius:14px;padding:15px 14px;font:inherit;outline:0;background:#fbfdff;transition:.2s}.field textarea{min-height:130px;resize:vertical}.field input:focus,.field textarea:focus{border-color:#6d8cff;box-shadow:0 0 0 4px rgba(59,101,255,.12)}.form-card .btn{width:100%;margin-top:16px}.contact-info h3{font-size:26px;margin:0 0 18px;color:var(--rk-navy)}.contact-line{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px solid #edf2fb}.contact-line i{width:36px;height:36px;border-radius:12px;background:#eef5ff;color:#2563eb;display:grid;place-items:center;flex:0 0 auto}.contact-line strong{display:block;color:var(--rk-navy);font-size:14px}.contact-line span{color:var(--rk-muted);font-size:14px}.socials{display:flex;gap:10px;margin-top:20px}.socials a{width:42px;height:42px;border-radius:14px;background:var(--rk-gradient);display:grid;place-items:center;color:#fff;font-weight:900}.footer{background:#071120;color:#94a3b8;padding:48px 0}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:26px}.footer img{height:38px;filter:brightness(0) invert(1)}.footer p{line-height:1.7}.footer h4{color:#fff;margin:0 0 14px}.footer a{display:block;margin:9px 0;color:#cbd5e1}.footer a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.08);margin-top:34px;padding-top:24px;font-size:14px}.to-top{position:fixed;right:22px;bottom:22px;width:48px;height:48px;border:0;border-radius:16px;background:var(--rk-gradient);color:#fff;box-shadow:0 16px 34px rgba(59,101,255,.32);cursor:pointer;display:none;z-index:1001}.to-top.show{display:grid;place-items:center}.reveal{opacity:0;transform:translateY(20px);transition:.55s ease}.reveal.visible{opacity:1;transform:translateY(0)}.alert{display:none;margin-top:14px;padding:14px 16px;border-radius:14px;background:#ecfdf5;color:#047857;font-weight:800}.alert.show{display:block}
@media(max-width:980px){.container{width:min(100% - 28px,760px)}.nav-cta{display:none}.menu-toggle{display:flex}.nav-menu{position:fixed;top:76px;left:14px;right:14px;background:#fff;border:1px solid var(--rk-line);border-radius:20px;padding:20px;box-shadow:var(--rk-shadow);display:none;flex-direction:column;align-items:stretch;gap:0}.nav-menu.open{display:flex}.nav-menu a{padding:13px 12px;border-radius:12px}.nav-menu a:hover{background:#f8fbff}.nav-menu a:after{display:none}.hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}.hero{padding-top:120px}.hero-visual{order:-1}.services-grid,.projects-grid{grid-template-columns:1fr 1fr}.features-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.section-head{display:block}}
@media(max-width:640px){.section{padding:68px 0}.hero h1{font-size:42px}.hero-actions .btn{width:100%}.hero-stats,.about-points,.form-grid{grid-template-columns:1fr}.services-grid,.projects-grid,.features-grid,.footer-grid{grid-template-columns:1fr}.form-grid{display:grid}.field.full{grid-column:auto}.nav{height:70px}.nav-menu{top:70px}.logo img{height:36px}.project-card img{height:160px}}