/* ============================================================================
 * KAZAR BIO - design system (moderne, responsive)
 * ========================================================================== */
:root{
  --bg:#eef3f9;
  --surface:#ffffff;
  --surface-2:#f7fafd;
  --ink:#0b1424;
  --muted:#5a6b83;
  --line:#e3ebf4;
  --brand:#0d9488;
  --brand-2:#06b6d4;
  --brand-ink:#043c37;
  --accent:#f59e0b;
  --danger:#e11d48;
  --ok:#16a34a;
  --grad:linear-gradient(120deg,#0d9488 0%,#06b6d4 100%);
  --grad-soft:linear-gradient(120deg,#e6fffb 0%,#e8f6ff 100%);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 45px -22px rgba(11,20,36,.35);
  --shadow-sm:0 8px 24px -14px rgba(11,20,36,.30);
  --ring:0 0 0 4px rgba(13,148,136,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;line-height:1.55;
  -webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1200px,94%);margin:0 auto}
.hidden{display:none !important}

/* ---------------- top bar ---------------- */
.topbar{background:#06131f;color:#b9c6d6;font-size:12.5px}
.topbar .container{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:7px 0;flex-wrap:wrap}
.topbar b{color:#fff}
.topbar .tb-right{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.topbar a{color:#cfe0ee}
.topbar a:hover{color:#fff}

/* ---------------- header ---------------- */
.site-head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.85);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-head .container{display:flex;align-items:center;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.2px}
.brand .logo{width:42px;height:42px;border-radius:13px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:20px;box-shadow:var(--shadow-sm)}
.brand small{display:block;font-weight:600;color:var(--muted);font-size:11px;letter-spacing:.6px;text-transform:uppercase}
.nav{display:flex;gap:6px;margin-left:8px;flex-wrap:wrap}
.nav a{padding:9px 13px;border-radius:10px;color:#20344d;font-weight:600;font-size:14px}
.nav a:hover{background:var(--surface-2);color:var(--brand-ink)}
.head-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-mini{display:flex;align-items:center;background:var(--surface-2);border:1px solid var(--line);
  border-radius:999px;padding:4px 6px 4px 14px}
.search-mini input{border:0;background:transparent;outline:none;width:170px;font-size:14px;color:var(--ink)}
.cart-btn{position:relative;display:flex;align-items:center;gap:8px;background:var(--grad);color:#fff;
  border-radius:999px;padding:10px 16px;font-weight:700;box-shadow:var(--shadow-sm)}
.cart-btn:hover{filter:brightness(1.05)}
.cart-count{background:#fff;color:var(--brand-ink);border-radius:999px;font-size:12px;
  min-width:22px;height:22px;display:grid;place-items:center;padding:0 6px}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;
  width:42px;height:42px;font-size:20px;cursor:pointer}

/* ---------------- buttons ---------------- */
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;border-radius:12px;
  padding:12px 18px;font-weight:700;font-size:14px;transition:.18s ease;background:var(--surface);color:var(--ink)}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-sm)}
.btn-ghost{background:var(--surface-2);border:1px solid var(--line)}
.btn-outline{background:transparent;border:1.6px solid var(--brand);color:var(--brand-ink)}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:8px 12px;font-size:13px;border-radius:10px}
.btn-danger{background:#fee2e2;color:#9f1239}

/* ---------------- hero ---------------- */
.hero{position:relative;overflow:hidden;background:#06131f;color:#fff;border-radius:0 0 32px 32px}
.hero:before{content:"";position:absolute;inset:-40% -10% auto -10%;height:520px;
  background:radial-gradient(600px 300px at 20% 20%,rgba(6,182,212,.55),transparent 60%),
             radial-gradient(700px 340px at 80% 0%,rgba(13,148,136,.55),transparent 60%);
  filter:blur(10px)}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;
  align-items:center;padding:64px 0 72px}
.hero .kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);color:#d8f6f2;border-radius:999px;padding:7px 14px;
  font-size:12.5px;font-weight:700;letter-spacing:.4px}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.08;margin:16px 0 12px;letter-spacing:-.5px}
.hero h1 span{background:linear-gradient(120deg,#5eead4,#67e8f9);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:#c4d3e2;font-size:16.5px;max-width:560px}
.hero-actions{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.hero-stats{display:flex;gap:26px;margin-top:30px;flex-wrap:wrap}
.hero-stats .s b{display:block;font-size:24px}
.hero-stats .s span{color:#9fb3c8;font-size:12.5px;text-transform:uppercase;letter-spacing:.5px}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:24px;
  padding:22px;backdrop-filter:blur(8px)}
.hero-card h3{margin:0 0 14px;font-size:15px;color:#e8f6ff}
.hero-mini{display:flex;gap:12px;align-items:center;padding:10px;border-radius:14px;background:rgba(255,255,255,.06);margin-bottom:10px}
.hero-mini .ic{width:40px;height:40px;border-radius:12px;background:var(--grad);display:grid;place-items:center;font-size:18px}
.hero-mini b{display:block;font-size:13.5px}
.hero-mini span{color:#a9bdd2;font-size:12px}

/* ---------------- sections ---------------- */
.section{padding:44px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.section-head h2{margin:0;font-size:clamp(22px,2.6vw,30px);letter-spacing:-.3px}
.section-head .sub{color:var(--muted);font-size:14px;margin-top:4px}
.section-head a.more{color:var(--brand);font-weight:700;font-size:14px}

/* ---------------- categories ---------------- */
.cats{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.cat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 12px;
  text-align:center;transition:.2s ease;box-shadow:var(--shadow-sm)}
.cat:hover{transform:translateY(-4px);border-color:#bfe9e3}
.cat .ic{width:52px;height:52px;margin:0 auto 10px;border-radius:16px;background:var(--grad-soft);
  display:grid;place-items:center;font-size:24px;color:var(--brand-ink)}
.cat b{font-size:13.5px;font-weight:700}

/* ---------------- products ---------------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.22s ease;box-shadow:var(--shadow-sm)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cdece7}
.card .thumb{position:relative;aspect-ratio:4/3;background:var(--grad-soft);display:grid;place-items:center;
  color:#0b6f66;font-size:40px;font-weight:800;letter-spacing:1px}
.card .thumb .ph{opacity:.5}
.card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.badge{position:absolute;top:10px;left:10px;background:var(--accent);color:#3b2a02;border-radius:999px;
  font-size:11px;font-weight:800;padding:4px 9px}
.badge.new{background:#dcfce7;color:#166534}
.card .body{padding:14px 15px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .cat-lbl{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);font-weight:700}
.card h3{margin:0;font-size:15px;line-height:1.3;font-weight:700}
.card .desc{color:var(--muted);font-size:12.8px;flex:1}
.card .price{display:flex;align-items:baseline;gap:8px}
.card .price b{font-size:17px;color:var(--brand-ink)}
.card .price s{color:#9aa8ba;font-size:13px}
.card .stock{font-size:12px;color:var(--ok);font-weight:700}
.card .stock.off{color:#b45309}
.card-actions{display:flex;gap:8px;margin-top:4px}

/* ---------------- toolbar / filters ---------------- */
.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:14px;box-shadow:var(--shadow-sm)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--surface-2);border-radius:999px;padding:8px 14px;
  font-size:13px;font-weight:600;color:#2a4058}
.chip.active{background:var(--grad);color:#fff;border-color:transparent}
.toolbar .grow{flex:1}
.select{padding:10px 12px;border:1px solid var(--line);border-radius:11px;background:#fff;font-size:14px;color:var(--ink)}

/* ---------------- breadcrumb / page ---------------- */
.crumb{color:var(--muted);font-size:13px;margin:20px 0 6px}
.crumb a{color:var(--brand);font-weight:600}
.page-title{font-size:clamp(22px,3vw,32px);margin:2px 0 6px;letter-spacing:-.3px}
.empty{background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);padding:40px;text-align:center;color:var(--muted)}

/* ---------------- product detail ---------------- */
.pd{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.pd .visual{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);aspect-ratio:1/1;display:grid;place-items:center;
  font-size:64px;font-weight:800;color:#0b6f66}
.pd .visual img{max-width:100%;max-height:100%;object-fit:contain}
.pd h1{font-size:clamp(22px,3vw,30px);margin:6px 0 10px}
.pd .price{font-size:30px;font-weight:800;color:var(--brand-ink);margin:10px 0}
.pd .price s{font-size:18px;color:#9aa8ba;font-weight:500;margin-left:8px}
.pd .meta{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}
.pill{background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600;color:#3a5169}
.buy{display:flex;gap:12px;align-items:center;margin:18px 0}
.qty{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.qty button{border:0;background:var(--surface-2);width:42px;height:46px;font-size:18px;cursor:pointer}
.qty input{border:0;width:56px;text-align:center;font-size:15px;height:46px;outline:none}
.tabs{margin-top:26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tabs .head{display:flex;gap:4px;border-bottom:1px solid var(--line);padding:6px}
.tabs .head button{border:0;background:transparent;padding:10px 16px;font-weight:700;color:var(--muted);cursor:pointer;border-radius:10px}
.tabs .head button.active{background:var(--grad-soft);color:var(--brand-ink)}
.tabs .pane{padding:18px 20px;color:#33475f}
.specs{width:100%;border-collapse:collapse}
.specs td{padding:10px 12px;border-bottom:1px solid var(--line);font-size:14px}
.specs td:first-child{color:var(--muted);width:40%}

/* ---------------- cart ---------------- */
.cart-wrap{display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.panel .panel-head{padding:16px 18px;border-bottom:1px solid var(--line);font-weight:800}
.panel .panel-body{padding:18px}
.line{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);align-items:center}
.line .ic{width:60px;height:60px;border-radius:14px;background:var(--grad-soft);display:grid;place-items:center;color:#0b6f66;font-weight:800;flex:none}
.line .inf{flex:1;min-width:0}
.line .inf b{display:block;font-size:14.5px}
.line .inf span{color:var(--muted);font-size:12.5px}
.line .pr{font-weight:800;color:var(--brand-ink);white-space:nowrap}
.recap .row{display:flex;justify-content:space-between;padding:8px 0;color:#33475f}
.recap .total{display:flex;justify-content:space-between;padding-top:12px;margin-top:8px;border-top:2px solid var(--line);font-size:18px;font-weight:800}

/* ---------------- forms ---------------- */
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:700;color:#2a4058;margin-bottom:6px;text-transform:uppercase;letter-spacing:.4px}
.input,textarea.input,select.input{width:100%;padding:12px 14px;border:1.4px solid var(--line);border-radius:12px;
  background:var(--surface-2);font-size:14.5px;color:var(--ink);outline:none;font-family:inherit}
.input:focus{border-color:var(--brand);box-shadow:var(--ring);background:#fff}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ---------------- alerts ---------------- */
.alert{border-radius:14px;padding:13px 16px;font-weight:600;margin:14px 0;font-size:14px}
.alert.ok{background:#e7f8ee;color:#166534}
.alert.ko{background:#fdecec;color:#9f1239}
.alert.info{background:#e8f4ff;color:#0b5394}

/* ---------------- footer ---------------- */
.site-foot{background:#06131f;color:#9fb3c8;margin-top:50px;padding:46px 0 26px;border-radius:32px 32px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:26px}
.site-foot h4{color:#fff;font-size:14px;margin:0 0 12px;letter-spacing:.5px;text-transform:uppercase}
.site-foot a{color:#b9c6d6;font-size:13.5px;display:block;padding:5px 0}
.site-foot a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:16px;font-size:12.5px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------------- toast ---------------- */
#bm-toasts{position:fixed;right:18px;bottom:18px;z-index:9999;width:320px;max-width:92vw}
.bm-toast{background:#fff;border-left:5px solid var(--brand);border-radius:14px;box-shadow:var(--shadow);
  padding:13px 15px;margin-top:10px;animation:bmIn .25s ease}
.bm-toast b{display:block;font-size:14px}
.bm-toast span{color:var(--muted);font-size:12.5px}
@keyframes bmIn{from{transform:translateY(10px);opacity:0}to{transform:none;opacity:1}}

/* ---------------- responsive ---------------- */
@media (max-width:1000px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .cats{grid-template-columns:repeat(3,1fr)}
  .hero .container{grid-template-columns:1fr;padding:46px 0 54px}
  .hero-card{display:none}
  .pd{grid-template-columns:1fr}
  .cart-wrap{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .nav{display:none}
  .menu-toggle{display:block}
  .search-mini{display:none}
  .grid{grid-template-columns:repeat(2,1fr)}
  .cats{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .topbar .tb-right{display:none}
  .site-head .container{gap:10px}
}