:root{
  --bg:#f7f7fb;
  --text:#1f1f1f;
  --muted:#6b7280;
  --card:#ffffff;
  --line:#e5e7eb;
  --blue:#3b82f6;
  --pink:#ec4899;
  --yellow:#facc15;
  --dark:#111827;
  --radius:18px;
  --shadow:0 10px 30px rgba(17,24,39,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
a{text-decoration:none;color:inherit}
.container{width:min(1180px,92%);margin:0 auto}
.narrow{width:min(760px,92%);margin:0 auto}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:20px}
nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.brand{font-weight:800;font-size:1.25rem}
.hero{padding:64px 0;background:linear-gradient(135deg,rgba(255,255,255,.92) 0%,rgba(238,244,255,.92) 55%,rgba(255,241,248,.92) 100%), url('../images/hero.png') center/cover no-repeat}
.hero-grid{display:grid;grid-template-columns:1.3fr .8fr;gap:28px;align-items:center}
.hero h1{font-size:clamp(2.3rem,5vw,4.3rem);line-height:1;margin:.3em 0}
.hero p{font-size:1.1rem;color:var(--muted);max-width:640px}
.hero-card,.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:24px}
.section{padding:56px 0}
.alt{background:#fff}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h1,.section-head h2{margin:0}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{padding:22px}
.category-card,.product-card,.campaign-card{transition:transform .18s ease, box-shadow .18s ease}
.category-card:hover,.product-card:hover,.campaign-card:hover{transform:translateY(-3px)}
.product-card h3,.category-card h3,.campaign-card h3{margin:.2em 0}
.product-card p,.category-card p,.campaign-card p{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:#fff;padding:12px 18px;border-radius:999px;border:none;font-weight:700;cursor:pointer}
.btn-light{background:#fff;color:var(--dark);border:1px solid var(--line)}
.btn-dark{background:var(--dark);color:#fff}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.pill,.tag{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;font-size:.82rem;font-weight:700}
.pill{background:#eaf2ff;color:#1d4ed8}
.tag{background:#eff6ff;color:#1d4ed8}
.tag.pink{background:#fce7f3;color:#be185d}
.tag.yellow{background:#fef9c3;color:#854d0e}
.catalog-layout{display:grid;grid-template-columns:280px 1fr;gap:20px}
.sidebar{height:max-content}
.filter-link{display:block;padding:10px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.product-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.product-image-placeholder{min-height:420px;display:grid;place-items:center;background:linear-gradient(135deg,#eef4ff,#fff1f8);font-weight:800;color:var(--muted)}
.product-detail h1{margin-top:10px}
.price-row{display:flex;align-items:center;gap:12px;margin:18px 0}
.price-old{text-decoration:line-through;color:var(--muted)}
.price-main{font-size:1.8rem;font-weight:900}
.meta{display:grid;gap:8px;margin:20px 0;color:var(--muted)}
.form-grid{display:grid;gap:14px}
input,textarea,select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;font:inherit}
textarea{min-height:120px;resize:vertical}
.alert{padding:12px 14px;border-radius:12px;margin:12px 0}
.alert.success{background:#ecfdf5;color:#166534}
.alert.error{background:#fef2f2;color:#991b1b}
.site-footer{padding:42px 0;background:var(--dark);color:#fff;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.clean-list{padding-left:18px;margin:12px 0}
.admin-login-page{display:grid;place-items:center;min-height:100vh;background:linear-gradient(135deg,#eef4ff,#fff1f8)}
.login-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow);width:min(460px,92%)}
.admin-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.admin-sidebar{background:#fff;border-right:1px solid var(--line);padding:24px;position:sticky;top:0;height:100vh}
.admin-nav{display:grid;gap:10px;margin-top:22px}
.admin-nav a{padding:10px 12px;border-radius:12px}
.admin-nav a:hover{background:#f3f4f6}
.admin-content{padding:28px}
.stat-card span{display:block;color:var(--muted);margin-bottom:8px}
.stat-card strong{font-size:2rem}
.admin-grid{display:grid;grid-template-columns:420px 1fr;gap:20px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}
@media (max-width: 980px){
  .hero-grid,.catalog-layout,.product-layout,.admin-grid,.admin-shell,.footer-grid{grid-template-columns:1fr}
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .admin-sidebar{position:relative;height:auto}
}
@media (max-width: 640px){
  nav{gap:10px}
  .grid-3,.grid-4{grid-template-columns:1fr}
}