:root{
  --baby: #7ec8ff;
  --baby-2: #d8f0ff;
  --ink: #0f172a;
  --muted: #475569;
  --bg: #ffffff;
  --soft: #f7fbff;
  --card: #ffffff;
  --border: #e5f1fb;
  --radius: 16px;
  --shadow: 0 10px 24px rgba(15,23,42,.08);
  --container: 1140px;
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  background:linear-gradient(180deg, #ffffff 0%, #f8fcff 100%);
  color:var(--ink);
  line-height:1.55;
}

img{
  max-width:100%;
  display:block;
}

a{
  text-decoration:none;
  color:inherit;
}

a:hover{
  text-decoration:none;
}

.container{
  width:min(100% - 32px, var(--container));
  margin:auto;
}

.muted{
  color:var(--muted);
}

.small{
  font-size:0.9rem;
}

.clamp-2{
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-height: 1.4;
  max-height: 2.8em;
}

.section{
  padding:28px 0;
}

.section-head{
  margin-bottom:18px;
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:16px;
  flex-wrap:wrap;
}

.section-head h1,
.section-head h2{
  margin:0;
}

/* header */

.site-header{
  border-bottom:1px solid var(--border);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  position:sticky;
  top:0;
  z-index:20;
}

.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  padding:12px 0;
}

.brand-logo{
  width:140px;
  height:auto;
  object-fit:contain;
}

.nav-right{
  display:flex;
  align-items:center;
  gap:14px;
}

.nav-search input,
.toolbar input,
input,
textarea{
  font:inherit;
  border:1px solid var(--border);
  background:#fff;
  padding:10px 12px;
}

.nav-search input{
  width:220px;
  max-width:40vw;
  border-radius:999px;
}

.toolbar input{
  width:100%;
  border-radius:999px;
}

input,
textarea{
  border-radius:12px;
}

textarea{
  resize:vertical;
}

.nav-search input:focus,
.toolbar input:focus,
input:focus,
textarea:focus{
  outline:3px solid rgba(126,200,255,.22);
  border-color:var(--baby);
}

.nav-list{
  display:flex;
  list-style:none;
  margin:0;
  padding:0;
  gap:8px;
  align-items:center;
}

.nav-link{
  display:block;
  padding:10px 12px;
  border-radius:999px;
  transition:.2s ease;
}

.nav-link:hover{
  background:rgba(126,200,255,.12);
}

.nav-link.is-active{
  background:var(--baby-2);
  border:1px solid var(--border);
}

/* banner */

.hero-banner{
  width:100%;
  height:320px;
  background-image:url("../img/baner.jpeg");
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
  background-color:#eef8ff;
  display:flex;
  justify-content:center;
  align-items:flex-end;
  padding-bottom:22px;
}

.banner-buttons{
  display:flex;
  gap:18px;
  justify-content:center;
  flex-wrap:wrap;
}

/* buttons */

.btn{
  padding:11px 18px;
  border-radius:999px;
  font-weight:700;
  cursor:pointer;
  border:2px solid transparent;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:.2s ease;
}

.btn-primary{
  background:linear-gradient(135deg, var(--baby), #52b9ff);
  color:#fff;
  box-shadow:0 8px 18px rgba(82,185,255,.25);
}

.btn-primary:hover{
  transform:translateY(-1px);
}

.btn-ghost{
  background:#fff;
  border-color:#7ec8ff;
  color:#0f172a;
}

.btn-ghost:hover{
  background:#f3fbff;
}

/* cards / grid */

.grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:16px;
}

.card{
  background:rgba(255,255,255,.96);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.product-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
  height:100%;
}

.thumb{
  display:block;
  background:#eef8ff;
  border-bottom:1px solid var(--border);
}

.thumb img{
  width:100%;
  height:260px;
  object-fit:contain;
  object-position:center;
  padding:10px;
}

.pc-body{
  padding:14px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex:1;
}

.pc-meta{
  margin:0;
  font-size:0.8rem;
  font-weight:700;
  color:#0284c7;
  text-transform:uppercase;
  letter-spacing:.04em;
}

.pc-title{
  margin:0;
  font-size:1rem;
  line-height:1.28;
}

.pc-price{
  margin:0;
  font-weight:800;
}

.pc-actions{
  margin-top:auto;
  padding-top:6px;
}

/* toolbar */

.toolbar{
  display:flex;
  gap:12px;
  align-items:center;
  margin-bottom:16px;
}

.toolbar .tool{
  flex:1;
}

/* breadcrumbs */

.breadcrumbs{
  display:flex;
  gap:10px;
  align-items:center;
  font-size:.94rem;
  color:var(--muted);
  margin-bottom:16px;
}

.breadcrumbs a{
  color:#1777b8;
}

/* product page */

.product-top{
  display:grid;
  grid-template-columns:1fr 1.02fr;
  gap:22px;
  align-items:start;
}

.pd-media{
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:#eef8ff;
  box-shadow:var(--shadow);
}

.slider{
  position:relative;
  width:100%;
  height:420px;
  background:#eef8ff;
  overflow:hidden;
}

.slides{
  width:100%;
  height:100%;
  position:relative;
}

.slide{
  position:absolute;
  inset:0;
  opacity:0;
  transition:opacity .3s ease;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:14px;
}

.slide.is-active{
  opacity:1;
  z-index:1;
}

.slide img{
  width:100%;
  height:100%;
  object-fit:contain;
  object-position:center;
}

.slider-btn{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  z-index:2;
  width:42px;
  height:42px;
  border:1px solid var(--border);
  border-radius:999px;
  background:rgba(255,255,255,.9);
  color:var(--ink);
  font-size:1.4rem;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
}

.slider-btn.prev{
  left:12px;
}

.slider-btn.next{
  right:12px;
}

.slider-btn:hover{
  background:#fff;
}

.thumb-strip{
  display:flex;
  gap:10px;
  padding:10px;
  border-top:1px solid var(--border);
  overflow-x:auto;
  background:#fff;
}

.thumb-btn{
  padding:0;
  border:1px solid var(--border);
  background:#fff;
  border-radius:10px;
  overflow:hidden;
  cursor:pointer;
  flex:0 0 auto;
}

.thumb-btn img{
  width:72px;
  height:56px;
  object-fit:contain;
  object-position:center;
  padding:4px;
  background:#eef8ff;
}

.thumb-btn.is-active{
  border-color:var(--baby);
  outline:3px solid rgba(126,200,255,.22);
}

.pd-info{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
  background:#fff;
}

.pd-badge{
  display:inline-block;
  margin:0 0 8px;
  padding:6px 10px;
  border-radius:999px;
  background:var(--baby-2);
  border:1px solid var(--border);
  font-size:.82rem;
  font-weight:700;
}

.pd-info h1{
  margin:0 0 8px;
  font-size:clamp(1.3rem, 2vw, 1.9rem);
  line-height:1.18;
}

.pd-price{
  margin:10px 0;
  font-size:1.2rem;
  font-weight:800;
}

.pd-features{
  margin:12px 0 0;
  padding-left:18px;
}

.pd-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:16px;
}

.pd-sections{
  display:grid;
  gap:12px;
  margin-top:18px;
}

.pd-details{
  border:1px solid var(--border);
  border-radius:14px;
  background:#fff;
  box-shadow:var(--shadow);
  overflow:hidden;
}

.pd-details summary{
  list-style:none;
  cursor:pointer;
  padding:14px 16px;
  font-weight:800;
  background:#f8fcff;
  border-bottom:1px solid transparent;
}

.pd-details[open] summary{
  border-bottom-color:var(--border);
}

.pd-details summary::-webkit-details-marker{
  display:none;
}

.pd-panel{
  padding:14px 16px;
}

/* spec table */

.table-wrap{
  overflow-x:auto;
}

.spec-table{
  width:100%;
  border-collapse:collapse;
  font-size:0.96rem;
}

.spec-table th,
.spec-table td{
  text-align:left;
  padding:14px 16px;
  border:1px solid #d9d9d9;
  vertical-align:top;
}

.spec-table th{
  width:42%;
  background:#f3f3f3;
  font-weight:700;
}

.spec-table td{
  background:#fff;
}

/* contact */

.contact-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}

.contact-card{
  padding:18px;
}

.field{
  display:flex;
  flex-direction:column;
  gap:6px;
  margin-bottom:12px;
}

label{
  font-weight:700;
}

.error{
  color:#c62828;
  font-size:0.84rem;
  min-height:1.1em;
}

.map-placeholder,
.photo-block{
  margin-top:16px;
  border:1px dashed rgba(15,23,42,.2);
  border-radius:14px;
  background:#f3fbff;
  padding:18px;
}

.prose{
  max-width:820px;
}

/* footer */

.site-footer{
  border-top:1px solid var(--border);
  background:#f8fcff;
  margin-top:8px;
}

.footer-inner{
  display:grid;
  grid-template-columns:1fr auto;
  gap:12px;
  align-items:start;
  padding:20px 0;
}

.footer-links{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.footer-copy{
  grid-column:1 / -1;
  margin:0;
}

/* responsive */

@media (max-width: 980px){
  .grid{
    grid-template-columns:repeat(2, 1fr);
  }

  .product-top{
    grid-template-columns:1fr;
  }

  .contact-layout{
    grid-template-columns:1fr;
  }

  .footer-inner{
    grid-template-columns:1fr;
  }

  .footer-links{
    justify-content:flex-start;
  }
}

@media (max-width: 768px){
  .hero-banner{
    height:240px;
  }

  .nav-right{
    gap:10px;
  }

  .nav-search input{
    width:160px;
  }
}

@media (max-width: 640px){
  .grid{
    grid-template-columns:1fr;
  }

  .thumb img{
    height:220px;
  }

  .slider{
    height:320px;
  }

  .brand-logo{
    width:110px;
  }

  .nav-search{
    display:none;
  }

  .nav-list{
    gap:4px;
    flex-wrap:wrap;
    justify-content:flex-end;
  }

  .nav-link{
    padding:8px 10px;
    font-size:.92rem;
  }

  .toolbar{
    flex-direction:column;
    align-items:stretch;
  }
}