:root{--blue:#1f57d6;--wa:#25D366;--graphite:#0f172a;--text:#0c1324;--muted:#5b6b83;--bg:#f3f4f6;--maxw:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:linear-gradient(180deg,#f6f7fb 0,#eef1f6 100%)}
a{color:var(--blue);text-decoration:none}
/* layout */
.row{max-width:var(--maxw);margin:0 auto;padding:0 20px}
section{padding:56px 0}
.section-title{font-size:clamp(22px,2.2vw,30px);margin:0 0 10px}
.lead{color:var(--muted)}
/* header */
.top{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid #e9edf3;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.inner{display:flex;align-items:center;justify-content:space-between;padding:10px 0;gap:16px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:38px;height:38px;border-radius:50%}
.brand-text .kfs{font-weight:800}
.brand-text .sub{color:#6b7a96;font-size:13px;margin-top:-4px}
.nav-wrap{display:flex;align-items:center;gap:18px}
.primary-nav{display:flex;gap:18px;align-items:center;font-weight:700}
.utility{display:flex;align-items:center;gap:8px}
.lang-btn{border:none;background:transparent;font-weight:800;color:#6b7a96;cursor:pointer}
.lang-btn.active{color:var(--blue)}
.slash{color:#c0c6d6}
.hamb{display:none;width:36px;height:36px;border-radius:10px;border:1px solid #e6ebf2;background:#f7f9fe;align-items:center;justify-content:center}
.hamb span{display:block;width:18px;height:2px;background:#1f57d6;position:relative}
.hamb span::before,.hamb span::after{content:'';position:absolute;left:0;width:18px;height:2px;background:#1f57d6}
.hamb span::before{top:-6px}.hamb span::after{top:6px}
@media(max-width:920px){
  .primary-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid #e9edf3;padding:12px 20px;flex-direction:column;gap:12px}
  .primary-nav.open{display:flex}
  .hamb{display:flex}
}
/* hero */
.hero{padding:56px 0 32px;border-bottom:1px solid #e9edf3}
.wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;background:#eaf1ff;color:var(--blue);font-weight:800;font-size:14px;margin-bottom:10px}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.08;margin:8px 0 10px}
.media{border-radius:18px;border:1px solid #e9edf3;box-shadow:0 18px 40px rgba(16,24,40,.08);aspect-ratio:16/9;background:#f6f8fc url('/assets/images/main.png') center/cover no-repeat}
.btn{display:inline-block;padding:12px 18px;border-radius:12px;font-weight:800}
.primary{background:var(--blue);color:#fff}
.dark{background:var(--graphite);color:#fff}
@media(max-width:940px){.wrap{grid-template-columns:1fr} .dark{display:none}}
/* cards */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:940px){.grid-4{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grid-4{grid-template-columns:1fr}}
.card,.ref{border-radius:16px;overflow:hidden;border:1px solid #e9edf3;background:#fff;box-shadow:0 10px 26px rgba(16,24,40,.06)}
.card .img,.ref .img-wrap{height:190px;background:#f2f5fb;position:relative}
.card .img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card .txt,.ref .txt{padding:14px}
/* before/after */
.ref .img-wrap img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .45s ease,transform .45s ease}
.ref .after{opacity:0}
.ref:hover .after{opacity:1; transform:scale(1.02)}
@media(max-width:560px){ .ref.auto .after{animation:fadeSwap 2.4s ease-in-out infinite alternate} @keyframes fadeSwap{from{opacity:0} to{opacity:1}} }
/* contact */
.contact{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:start}
.box{padding:22px;border:1px solid #e9edf3;border-radius:14px;background:#fff;box-shadow:0 10px 26px rgba(16,24,40,.05)}
label{font-weight:800;display:block;margin-bottom:6px}
input,textarea{padding:12px;border:1px solid #d8e0ea;border-radius:10px;font:inherit;width:100%}
textarea{min-height:120px;resize:vertical}
.send{background:var(--blue);color:#fff;font-weight:800;border:none;padding:12px 18px;border-radius:10px;cursor:pointer}
@media(max-width:940px){.contact{grid-template-columns:1fr}}
/* footer */
footer{background:#0f172a;color:#c6d4f7;padding:26px 0;margin-top:40px}
.foot{display:flex;justify-content:space-between;align-items:center}
.muted{color:#9cb1ea}
/* WhatsApp */
.wa{position:fixed;right:20px;bottom:20px;width:64px;height:64px;border-radius:50%;background:var(--wa);display:flex;align-items:center;justify-content:center;box-shadow:0 12px 28px rgba(0,0,0,.22), 0 0 0 1px rgba(255,255,255,.6) inset; z-index:120; animation:pulse 2.2s infinite}
.wa svg{width:30px;height:30px;fill:#fff}
.wa:hover{transform:translateY(-2px)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.6)}70%{box-shadow:0 0 0 14px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}
@media(max-width:480px){.wa{width:58px;height:58px} .wa svg{width:26px;height:26px}}

/* Carousel indicators + mobile size */
.carousel-viewport{touch-action:pan-y;cursor:grab}
.carousel-viewport.dragging{cursor:grabbing}
.carousel-indicators{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:12px}
.carousel-dot{width:8px;height:8px;border-radius:50%;background:#d0d7e4;border:1px solid #aabaf0}
.carousel-dot[aria-current="true"]{background:#1f57d6;border-color:#1f57d6;transform:scale(1.2)}
@media(max-width:560px){.carousel-indicators{gap:7px;margin-top:10px}.carousel-dot{width:6px;height:6px}.carousel-dot[aria-current="true"]{transform:scale(1.16)}}