:root{
  --bg:#050a12;
  --bg2:#071628;
  --card:rgba(255,255,255,0.06);
  --border:rgba(255,255,255,0.14);
  --text:#e9f4ff;
  --muted:#a8c3da;

  --ice:#5ee7ff;
  --ice2:#7c7bff;
  --glow:rgba(94,231,255,.28);
  --glow2:rgba(124,123,255,.22);

  --danger:#ff4d6d;
  --success:#25d3b2;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text)}
body{
  background:
    radial-gradient(1000px 600px at 20% 10%, var(--glow), transparent 60%),
    radial-gradient(900px 550px at 85% 0%, var(--glow2), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  min-height:100vh;
}
a{color:var(--ice);text-decoration:none}
a:hover{opacity:.92}
img{max-width:100%;display:block}
.container{width:min(1200px,92%);margin:0 auto}
.container--narrow{width:min(860px,92%);margin:0 auto}

.header{
  position:sticky;top:0;z-index:50;
  background:rgba(5,10,18,0.62);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-weight:900;letter-spacing:.4px;color:#fff;display:flex;align-items:center;gap:10px}
.logo__mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--ice),var(--ice2));
  box-shadow:0 0 18px var(--glow);
}
.nav{display:flex;gap:14px;align-items:center}
.nav a{color:#d9eeff;padding:8px 10px;border-radius:12px}
.nav a:hover{background:rgba(255,255,255,0.06)}
.is-active{background:rgba(94,231,255,.14)}

.burger{display:none;flex-direction:column;gap:5px;background:transparent;border:0;cursor:pointer}
.burger span{width:24px;height:2px;background:#d9eeff;display:block}
@media(max-width:900px){
  .burger{display:flex}
  .nav{
    position:absolute;inset:60px 0 auto 0;
    background:rgba(7,22,40,0.96);
    border-top:1px solid var(--border);
    flex-direction:column;
    padding:12px;
    display:none;
  }
  .nav.open{display:flex}
}

.cart-count{
  background:linear-gradient(90deg,var(--ice),var(--ice2));
  color:#00101f;
  font-size:12px;
  padding:2px 7px;
  border-radius:999px;
  margin-left:6px;
  font-weight:800;
}

/* HERO / Carousel */
.hero{position:relative}
.carousel{
  position:relative;width:100%;
  height:72vh;min-height:520px;
  overflow:hidden;
  border-bottom:1px solid var(--border);
}
.carousel__slides{position:relative;width:100%;height:100%}
.carousel__slide{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:0;transition:opacity 1s ease;
}
.carousel__slide::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,0.10) 0%, rgba(0,0,0,0.55) 70%, rgba(0,0,0,0.74) 100%);
}
.carousel__slide.active{opacity:1}
.carousel__caption{
  position:absolute;left:6%;bottom:18%;
  z-index:2;
  padding:14px 18px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,0.16);
  background:rgba(7,22,40,0.55);
  backdrop-filter:blur(10px);
  box-shadow:0 0 26px rgba(94,231,255,0.12);
  font-size:26px;font-weight:800;
  max-width:720px;
}
.carousel__controls{
  position:absolute;left:50%;bottom:22px;transform:translateX(-50%);
  display:flex;gap:14px;z-index:3;
}
.carousel__btn{
  width:54px;height:54px;border-radius:18px;
  border:1px solid rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.06);
  color:#e9f4ff;font-size:20px;
  cursor:pointer;
  transition:transform .12s ease, background .2s ease, box-shadow .2s ease;
  backdrop-filter:blur(10px);
}
.carousel__btn:hover{
  background:linear-gradient(135deg,rgba(94,231,255,0.35),rgba(124,123,255,0.28));
  box-shadow:0 0 20px rgba(94,231,255,0.18);
}
.carousel__btn:active{transform:translateY(1px)}

/* Sections */
.section{padding:56px 0}
.section--alt{
  background:linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
}
.section__title{font-size:30px;margin:0 0 18px;font-weight:900}
.center{text-align:center}
.mt-24{margin-top:24px}

/* Grids */
.grid{display:grid;gap:16px}
.products-grid{grid-template-columns:repeat(4,1fr)}
.reviews-grid{grid-template-columns:repeat(2,1fr)}
.benefits-grid{grid-template-columns:repeat(4,1fr)}
@media(max-width:1100px){
  .products-grid{grid-template-columns:repeat(3,1fr)}
  .benefits-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .products-grid,.reviews-grid,.benefits-grid{grid-template-columns:repeat(1,1fr)}
}

/* Cards */
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .15s ease, box-shadow .2s ease;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:0 18px 40px rgba(0,0,0,0.35);
}
.card__img{
  aspect-ratio:4/3;object-fit:cover;
  cursor:pointer;
}
.card__body{padding:14px}
.card__title{font-weight:900;margin:6px 0 4px}
.card__price{font-weight:900;color:#fff}

.badges{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.badge{
  font-size:12px;padding:3px 9px;border-radius:999px;
  border:1px solid rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.05);
}
.badge--hit{background:rgba(94,231,255,0.16)}
.badge--sale{background:rgba(255,77,109,0.16)}
.badge--one{background:rgba(124,123,255,0.16)}
.badge--top{background:rgba(37,211,178,0.16)}

/* Reviews / Benefits */
.review,.benefit{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:16px;
}
.review__author{margin-top:10px;color:var(--muted);font-size:14px}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 14px;border-radius:14px;
  border:1px solid rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.06);
  color:#e9f4ff;
  cursor:pointer;
  transition:transform .12s ease, filter .15s ease, box-shadow .2s ease;
}
.btn:hover{filter:brightness(1.06)}
.btn:active{transform:translateY(1px)}
.btn--primary{
  border-color:transparent;
  background:linear-gradient(90deg,var(--ice),var(--ice2));
  color:#04101f;font-weight:900;
  box-shadow:0 0 18px rgba(94,231,255,0.16);
}
.btn--ghost{background:transparent}

/* Forms */
.form{display:flex;flex-direction:column;gap:12px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:#d9eeff}
.form input{
  padding:12px 14px;border-radius:14px;
  border:1px solid rgba(255,255,255,0.16);
  background:rgba(7,22,40,0.55);
  color:#e9f4ff;
  outline:none;
  backdrop-filter:blur(8px);
}
.form input:focus{
  border-color:rgba(94,231,255,0.6);
  box-shadow:0 0 0 3px rgba(94,231,255,0.18);
}
.checkbox{display:flex;gap:10px;align-items:flex-start}
.checkbox input{margin-top:5px}

/* Cart */
.cart-list{display:flex;flex-direction:column;gap:12px}
.cart-item{
  display:grid;grid-template-columns:72px 1fr auto auto;
  gap:12px;align-items:center;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:10px;
}
.cart-item__img{width:72px;height:72px;object-fit:cover;border-radius:14px}
.cart-item__title{font-weight:900}
.qty{display:flex;gap:8px;align-items:center}
.qty button{
  width:30px;height:30px;border-radius:12px;
  border:1px solid rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.06);
  color:#e9f4ff;
}
.cart-summary{display:flex;gap:12px;justify-content:flex-end;align-items:center;margin-top:14px}

/* Footer */
.footer{
  border-top:1px solid var(--border);
  padding:28px 0;
  background:rgba(5,10,18,0.65);
  backdrop-filter:blur(10px);
}
.footer__inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer__nav,.footer__legal{display:flex;gap:16px;flex-wrap:wrap}
.footer__sub{color:var(--muted);font-size:14px}

/* Modal */
.modal{
  position:fixed;inset:0;
  background:rgba(0,0,0,0.7);
  display:none;align-items:center;justify-content:center;
  padding:20px;z-index:200;
}
.modal.open{display:flex}
.modal__content{
  width:min(520px,92vw);
  background:rgba(7,22,40,0.75);
  border:1px solid rgba(255,255,255,0.16);
  border-radius:18px;
  padding:18px;
  backdrop-filter:blur(14px);
}
.modal__close{margin-top:10px;border:0;background:transparent;color:#d9eeff;cursor:pointer}

/* Image modal */
.modal--image{background:rgba(0,0,0,0.82)}
.modal__content--image{
  width:auto;max-width:92vw;max-height:88vh;text-align:center;position:relative;
  background:transparent;border:0;padding:0;
}
.modal__content--image img{
  max-width:92vw;max-height:82vh;border-radius:18px;
  border:1px solid rgba(255,255,255,0.18);
  box-shadow:0 18px 50px rgba(0,0,0,0.45), 0 0 28px rgba(94,231,255,0.12);
}
.modal__caption{margin-top:12px;color:#d9eeff;font-weight:800}
.modal__x{
  position:absolute;top:-10px;right:-10px;
  width:42px;height:42px;border-radius:16px;
  border:1px solid rgba(255,255,255,0.18);
  background:linear-gradient(135deg,rgba(94,231,255,0.35),rgba(124,123,255,0.26));
  color:#fff;cursor:pointer;
}

/* Cookie banner */
.cookie-banner{
  position:fixed;bottom:22px;right:-420px;
  display:flex;gap:12px;align-items:center;
  padding:14px 16px;border-radius:18px 0 0 18px;
  background:rgba(7,22,40,0.78);
  border:1px solid rgba(255,255,255,0.16);
  border-left:4px solid rgba(94,231,255,0.8);
  backdrop-filter:blur(12px);
  transition:right .6s ease;
  z-index:250;
}
.cookie-banner.show{right:22px}
.btn--cookie{border:0;background:linear-gradient(90deg,var(--ice),var(--ice2));color:#04101f;font-weight:900}