:root{
  --bg:#faf8f3; --paper:#fff; --ink:#1e2a26; --ink-2:#4a5550; --muted:#7a8580;
  --accent:#2c7a4d; --accent-2:#3a9461; --line:rgba(30,42,38,.12);
  --card-shadow:0 2px 10px -3px rgba(30,42,38,.08);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Inter,system-ui,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.55;
  -webkit-font-smoothing:antialiased;min-height:100vh;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

/* Top nav */
.topbar{
  background:#fff;border-bottom:1px solid var(--line);padding:14px 24px;
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
}
.topbar .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--accent);text-decoration:none;letter-spacing:-.01em}
.topbar .brand .accent{color:var(--ink)}
.topbar nav{display:flex;gap:18px;font-size:14px}
.topbar nav a{color:var(--ink-2)}
.topbar nav a:hover,.topbar nav a.active{color:var(--accent)}

/* Layout */
main{max-width:1200px;margin:0 auto;padding:28px 24px}
.hero{padding:48px 24px;text-align:center;background:linear-gradient(135deg,#f0f6f1,var(--bg))}
.hero h1{font-size:42px;font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
.hero h1 .accent{color:var(--accent)}
.hero p{font-size:18px;color:var(--ink-2);max-width:600px;margin:0 auto}
.notice{background:#fff8e3;border:1px solid #e8b94a;border-radius:8px;padding:10px 16px;font-size:13px;margin-bottom:14px}

/* Layout grid */
.layout{display:grid;grid-template-columns:280px 1fr;gap:24px}
@media(max-width:900px){.layout{grid-template-columns:1fr}}

.panel{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin-bottom:16px;box-shadow:var(--card-shadow)}
.panel h2{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:10px}

/* Filter sidebar */
.filter h3{font-size:13px;text-transform:uppercase;color:var(--ink-2);letter-spacing:.06em;margin:18px 0 8px;font-weight:700}
.filter label{display:flex;align-items:center;gap:8px;font-size:14px;padding:4px 0;cursor:pointer}
.filter input[type=range],.filter input[type=number]{width:100%}
.filter .row{display:flex;gap:8px;align-items:center}
.filter .row input{flex:1;padding:7px;border:1px solid var(--line);border-radius:6px;font-family:inherit;font-size:13px}

/* Cards grid */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;
  box-shadow:var(--card-shadow);transition:transform .15s,box-shadow .15s;cursor:pointer;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:0 6px 20px -6px rgba(30,42,38,.18)}
.card .img-wrap{aspect-ratio:4/3;background:#eef0eb url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="60" height="40" viewBox="0 0 60 40"><rect width="60" height="40" fill="%23eef0eb"/><circle cx="48" cy="32" r="5" fill="%23c8d0c8"/><circle cx="12" cy="32" r="5" fill="%23c8d0c8"/><rect x="3" y="10" width="54" height="22" rx="2" fill="%23dee4dc"/></svg>') center/40% no-repeat;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:12px;overflow:hidden}
.card .img-wrap img{width:100%;height:100%;object-fit:cover}
.card .body{padding:14px 16px;flex:1;display:flex;flex-direction:column;gap:6px}
.card .brand-tag{font-size:11px;color:var(--accent);text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.card h3{font-size:17px;font-weight:700;line-height:1.25}
.card .meta{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.card .meta span{display:flex;align-items:center;gap:3px}
.card .price{margin-top:auto;padding-top:10px;font-weight:700;font-size:18px;color:var(--accent)}
.card .price small{color:var(--muted);font-weight:400;font-size:11px}

/* Detail page */
.detail-hero{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;margin-bottom:24px}
@media(max-width:800px){.detail-hero{grid-template-columns:1fr}}
.detail-hero .gallery{background:var(--paper);border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.detail-hero .gallery img{width:100%;display:block;aspect-ratio:4/3;object-fit:cover}
.detail-hero .gallery .thumbs{display:flex;gap:6px;padding:6px;overflow-x:auto}
.detail-hero .gallery .thumbs img{width:70px;height:50px;border-radius:6px;cursor:pointer;border:2px solid transparent}
.detail-hero .gallery .thumbs img.active{border-color:var(--accent)}

.detail-side .breadcrumb{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.detail-side h1{font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1.15}
.detail-side .sub{color:var(--ink-2);margin:4px 0 16px;font-size:15px}
.detail-side .big-price{font-size:32px;font-weight:800;color:var(--accent);margin:8px 0}
.detail-side .big-price small{font-size:13px;color:var(--muted);font-weight:400}
.detail-side .ctas{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

.btn{display:inline-block;padding:10px 18px;background:var(--accent);color:#fff;border-radius:8px;font-weight:600;font-size:14px;border:none;cursor:pointer;text-decoration:none}
.btn:hover{background:#1f5e39;text-decoration:none}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}
.btn.ghost:hover{background:rgba(44,122,77,.08)}

/* Specs table */
.specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:700px){.specs-grid{grid-template-columns:1fr}}
.specs-block{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px 22px}
.specs-block h3{font-size:13px;text-transform:uppercase;color:var(--accent);letter-spacing:.08em;margin-bottom:12px;font-weight:700}
.specs-block dl{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:14px}
.specs-block dt{color:var(--ink-2)}
.specs-block dd{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}

/* Compare tray */
.compare-tray{
  position:fixed;bottom:14px;left:50%;transform:translateX(-50%);
  background:#1e2a26;color:#fff;padding:10px 14px;border-radius:30px;
  display:flex;align-items:center;gap:12px;box-shadow:0 6px 20px -4px rgba(0,0,0,.3);
  font-size:13px;
}
.compare-tray .chip{background:rgba(255,255,255,.15);padding:4px 10px;border-radius:14px}
.compare-tray .btn-go{background:var(--accent-2);padding:6px 14px;border-radius:14px;color:#fff;font-weight:600}

footer{padding:36px 24px;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line);margin-top:60px;background:#fff}

/* Admin */
.admin-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
@media(max-width:800px){.admin-shell{grid-template-columns:1fr}}
.admin-sidebar{background:#1e2a26;color:#cfd5d2;padding:18px}
.admin-sidebar h1{font-size:16px;color:#fff;margin-bottom:14px}
.admin-sidebar a{display:block;color:#aab5b0;padding:7px 10px;border-radius:6px;font-size:14px}
.admin-sidebar a:hover,.admin-sidebar a.active{background:rgba(255,255,255,.08);color:#fff;text-decoration:none}
.admin-main{padding:24px}
.admin-main h1{font-size:24px;margin-bottom:18px}
table.admin{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
table.admin th,table.admin td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
table.admin th{background:#f5f1e8;font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:.06em;color:var(--ink-2)}
form.adm-form{display:grid;gap:14px;max-width:720px}
form.adm-form label{font-size:13px;color:var(--ink-2)}
form.adm-form input,form.adm-form select,form.adm-form textarea{
  width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:6px;font-family:inherit;font-size:14px;background:#fff;
}
form.adm-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){form.adm-form .row{grid-template-columns:1fr}}

.login-card{max-width:380px;margin:80px auto;background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px;box-shadow:var(--card-shadow)}
.login-card h1{font-size:20px;margin-bottom:18px;color:var(--accent)}
.login-card label{display:block;margin-bottom:10px;font-size:13px;color:var(--ink-2)}
.login-card label input{margin-top:4px;width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:6px;font-family:inherit;font-size:14px}