:root{
  --bg:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e5e7eb;
  --card:#ffffff;
  --shadow: 0 10px 25px rgba(0,0,0,.06);
  --radius: 18px;
  --max: 1100px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }

.container{
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

header{
  position: sticky;
  top:0;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding: 10px 0;
}

.brand-link{
  display:flex;
  align-items:center;
  gap:10px;
}
.brand-link img{
  width:34px;
  height:34px;
  border-radius: 999px;
}
.brand{
  font-weight: 800;
  letter-spacing: .4px;
}

nav a{
  padding:8px 10px;
  border-radius: 10px;
  color: var(--muted);
}
nav a:hover{
  background:#f3f4f6;
  color: var(--text);
}

.hero{
  padding: 26px 0 10px;
}
.hero-wrap{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 18px;
  align-items:center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  background: #fafafa;
  box-shadow: var(--shadow);
}
.hero-text{
  padding: 22px;
}
.hero-text h1{
  margin: 0 0 10px;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height:1.12;
}
.hero-text p{
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 16px;
}
.hero-img{
  height: 100%;
  min-height: 260px;
  background: #e5e7eb;
}
.hero-img img{
  width:100%;
  height:100%;
  object-fit: cover;
}

.btns{ display:flex; gap:10px; flex-wrap:wrap; }
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background:#fff;
  cursor:pointer;
  font-weight: 600;
}
.btn:hover{ filter: brightness(0.98); }
.btn.primary{
  background: #0f172a;
  color:#fff;
  border-color: #0f172a;
}

.section{
  padding: 22px 0;
}
.section h2{
  margin: 0 0 12px;
  font-size: 28px;
}
.muted{ color: var(--muted); }

.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 980px){
  .hero-wrap{ grid-template-columns: 1fr; }
  .grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px){
  .grid{ grid-template-columns: 1fr; }
}

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: 0 6px 18px rgba(0,0,0,.04);
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card > img,
.mini-slider img{
  width:100%;
  height: 220px;
  object-fit: cover;
  background:#f3f4f6;
}

.card-body{
  padding: 14px;
  display:grid;
  gap:6px;
}

.badge{
  display:inline-flex;
  width: fit-content;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  background:#fff;
}

.price{
  font-weight: 900;
  font-size: 18px;
}

/* ===== Mini slider inside card (index) ===== */
.mini-slider{ position: relative; }
.mini-dots{
  position:absolute;
  left: 10px;
  bottom: 10px;
  display:flex;
  gap:6px;
}
.mini-dots span{
  width:8px;
  height:8px;
  border-radius:999px;
  background: rgba(255,255,255,.65);
  border: 1px solid rgba(0,0,0,.08);
}
.mini-dots span.active{
  background: rgba(255,255,255,.95);
}

/* ===== Catalog controls ===== */
.controls{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin: 14px 0 18px;
}
.input, .select{
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  outline:none;
  min-width: 240px;
  background:#fff;
}
.select{ min-width: 180px; }

/* ===== Product page media ===== */
.media-wrap{ margin: 14px 0 10px; }
.media-frame{
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background:#0b1220;
}
.media-slot img, .media-slot video{
  width:100%;
  height: min(520px, 60vh);
  object-fit: cover;
  display:block;
}
.media-btn{
  position:absolute;
  top:50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(0,0,0,.35);
  color:#fff;
  cursor:pointer;
  display:grid;
  place-items:center;
}
.media-btn.left{ left: 12px; }
.media-btn.right{ right: 12px; }
.media-btn:disabled{ opacity: .35; cursor:not-allowed; }

.media-meta{
  display:flex;
  justify-content:space-between;
  gap:10px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

/* ===== Specs box ===== */
.specs{
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  background:#fff;
}
.specs-row{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 10px;
}
@media (max-width: 620px){
  .specs-row{ grid-template-columns: 1fr; }
}

/* ===== Lightbox ===== */
.lightbox{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.75);
  display:none;
  align-items:center;
  justify-content:center;
  padding: 20px;
  z-index: 9999;
}
.lightbox.open{ display:flex; }
.lightbox img{
  max-width: min(1100px, 96vw);
  max-height: 92vh;
  border-radius: 16px;
  background:#111;
}
.lightbox-close{
  position:absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(0,0,0,.35);
  color:#fff;
  cursor:pointer;
  display:grid;
  place-items:center;
}

.footer{
  border-top: 1px solid var(--border);
  padding: 18px 0;
  color: var(--muted);
}

/* ===== Manual mini slider buttons (index cards) ===== */
.mini-btn{
  position:absolute;
  top:50%;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(0,0,0,.28);
  color:#fff;
  cursor:pointer;
  display:grid;
  place-items:center;
  z-index: 2;
}
.mini-btn.left{ left: 10px; }
.mini-btn.right{ right: 10px; }
.mini-btn:disabled{ opacity: .35; cursor:not-allowed; }