:root{
  --bg:#f7f7fb; --panel:#ffffff; --ink:#12131a; --muted:#6b7080;
  --line:#e6e7ef; --brand:#4f46e5; --brand-2:#0ea5e9; --accent:#e11d48;
  --ok:#0f9d58; --radius:14px; --shadow:0 1px 2px rgba(16,18,40,.06),0 8px 24px rgba(16,18,40,.06);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{width:min(1180px,92vw);margin:0 auto}
.muted{color:var(--muted)}
h1,h2,h3{line-height:1.2;margin:0 0 .4em}
h1{font-size:clamp(1.9rem,4vw,2.6rem);letter-spacing:-.02em}
h2{font-size:clamp(1.3rem,2.4vw,1.7rem);letter-spacing:-.01em}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.head-inner{display:flex;align-items:center;gap:18px;padding:12px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:1.15rem;letter-spacing:-.02em}
.brand-mark{font-size:1.3rem}
.search{flex:1;min-width:200px;display:flex;gap:8px}
.search input{flex:1;padding:10px 14px;border:1px solid var(--line);border-radius:999px;
  background:#fff;font-size:.95rem;outline:none}
.search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.15)}
.search button{padding:10px 18px;border:0;border-radius:999px;background:var(--ink);color:#fff;
  font-weight:600;cursor:pointer}
.nav{display:flex;align-items:center;gap:18px;font-weight:600}
.cart-link{display:inline-flex;align-items:center;gap:7px}
.badge{background:var(--accent);color:#fff;border-radius:999px;padding:1px 8px;font-size:.78rem}

/* ---------- flashes ---------- */
.flashes{margin-top:14px;display:grid;gap:8px}
.flash{padding:11px 15px;border-radius:10px;font-size:.93rem;border:1px solid var(--line);background:#fff}
.flash.success{border-color:#bbf7d0;background:#f0fdf4;color:#166534}
.flash.error{border-color:#fecdd3;background:#fff1f2;color:#9f1239}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,#4f46e5,#0ea5e9 55%,#22d3ee);color:#fff;padding:66px 0 74px;margin-bottom:44px}
.hero h1{color:#fff;max-width:16ch}
.hero p{font-size:1.08rem;opacity:.94;max-width:52ch;margin:0 0 24px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.pill{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);
  padding:5px 13px;border-radius:999px;font-size:.83rem;font-weight:600;margin-bottom:16px}

/* ---------- buttons ---------- */
.btn{display:inline-block;padding:11px 20px;border-radius:10px;border:0;cursor:pointer;
  background:var(--brand);color:#fff;font-weight:650;font-size:.95rem;text-align:center;
  transition:transform .06s ease,filter .15s ease}
.btn:hover{filter:brightness(1.07)} .btn:active{transform:translateY(1px)}
.btn[disabled]{background:#c9cbd8;cursor:not-allowed;filter:none}
.btn.block{width:100%}
.btn.light{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff}
.btn.danger{background:#fff;color:#b91c1c;border:1px solid #fecaca;padding:7px 12px;font-size:.85rem}
.btn.sm{padding:7px 13px;font-size:.85rem}

/* ---------- product grid ---------- */
section.block{margin-bottom:52px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(235px,1fr));gap:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .14s ease,box-shadow .14s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(16,18,40,.11)}
.card-media{position:relative;display:block}
.thumb{width:100%;aspect-ratio:4/3;object-fit:cover;background:#eef0f7}
.thumb.tall{aspect-ratio:1/1}
.thumb.ph{display:grid;place-items:center}
.thumb.ph span{font-size:3rem;font-weight:800;color:rgba(255,255,255,.92);
  text-shadow:0 2px 12px rgba(0,0,0,.2)}
.tag{position:absolute;top:10px;left:10px;background:var(--ink);color:#fff;font-size:.72rem;
  font-weight:700;padding:4px 9px;border-radius:999px;letter-spacing:.02em}
.tag.sale{background:var(--accent)}
.tag.out{background:#475569;left:auto;right:10px}
.card-body{padding:15px 15px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.cat{font-size:.73rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--brand)}
.card-body h3{font-size:1rem;margin:0;flex:1}
.price-row{display:flex;align-items:baseline;gap:9px}
.price{font-size:1.16rem;font-weight:750;letter-spacing:-.02em}
.was{color:var(--muted);font-size:.92rem}

/* ---------- categories ---------- */
.cats{display:flex;gap:11px;flex-wrap:wrap}
.chip{padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-weight:600;font-size:.9rem}
.chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- shop toolbar ---------- */
.toolbar{display:flex;gap:14px;align-items:center;justify-content:space-between;
  flex-wrap:wrap;margin-bottom:22px}
select{padding:9px 13px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:.92rem}

/* ---------- product detail ---------- */
.pdp{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;margin:34px 0 54px}
.pdp .thumb{border-radius:var(--radius);border:1px solid var(--line)}
.pdp-meta .price{font-size:1.9rem}
.stock{font-size:.9rem;font-weight:650}
.stock.in{color:var(--ok)} .stock.low{color:#b45309} .stock.out{color:#b91c1c}
.qty{width:78px;padding:10px;border:1px solid var(--line);border-radius:10px;font-size:1rem}
.buy{display:flex;gap:12px;align-items:center;margin:22px 0}
.facts{border-top:1px solid var(--line);margin-top:24px;padding-top:18px;display:grid;gap:9px;
  font-size:.92rem;color:var(--muted)}

/* ---------- tables / cart ---------- */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow)}
.cart-layout{display:grid;grid-template-columns:1.7fr 1fr;gap:26px;align-items:start;margin:28px 0 56px}
table{width:100%;border-collapse:collapse;font-size:.94rem}
th{text-align:left;font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted);padding:0 10px 10px;border-bottom:1px solid var(--line)}
td{padding:14px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
.line-item{display:flex;gap:13px;align-items:center}
.line-item .thumb{width:62px;height:62px;aspect-ratio:auto;border-radius:10px;flex:none}
.line-item .thumb.ph span{font-size:1.4rem}
.totals{display:grid;gap:11px}
.totals .row{display:flex;justify-content:space-between;font-size:.95rem}
.totals .row.grand{border-top:1px solid var(--line);padding-top:12px;font-size:1.22rem;font-weight:750}
.qty-input{width:66px;padding:8px;border:1px solid var(--line);border-radius:8px;text-align:center}
.empty{text-align:center;padding:70px 20px}
.empty .big{font-size:3rem;margin-bottom:8px}

/* ---------- forms ---------- */
.field{display:grid;gap:6px;margin-bottom:15px}
.field label{font-size:.83rem;font-weight:650;color:var(--muted)}
.field input,.field textarea,.field select{padding:11px 13px;border:1px solid var(--line);
  border-radius:10px;font-size:.95rem;font-family:inherit;background:#fff;width:100%}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(79,70,229,.14)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}

/* ---------- order confirm ---------- */
.confirm{max-width:660px;margin:46px auto 70px;text-align:center}
.check{width:66px;height:66px;border-radius:50%;background:#dcfce7;color:#15803d;display:grid;
  place-items:center;font-size:2rem;margin:0 auto 16px}
.ref{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:1.15rem;font-weight:700;
  background:#f1f5f9;padding:6px 13px;border-radius:8px;display:inline-block}

/* ---------- admin ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:28px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.stat .n{font-size:1.8rem;font-weight:780;letter-spacing:-.02em}
.stat .l{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.status{font-size:.76rem;font-weight:700;padding:3px 10px;border-radius:999px;background:#f1f5f9}
.status.pending{background:#fef3c7;color:#92400e}
.status.shipped{background:#dbeafe;color:#1e40af}
.status.completed{background:#dcfce7;color:#166534}
.status.cancelled{background:#fee2e2;color:#991b1b}
details.adder{margin-bottom:24px}
details.adder summary{cursor:pointer;font-weight:650;padding:12px 18px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);list-style:none}
details.adder summary::-webkit-details-marker{display:none}
details.adder summary::before{content:"＋ ";font-weight:800;color:var(--brand)}
details.adder[open] summary{border-radius:var(--radius) var(--radius) 0 0;border-bottom:0}
.adder .panel{border-radius:0 0 var(--radius) var(--radius)}
.scroll-x{overflow-x:auto}
.login-box{max-width:390px;margin:70px auto;}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);background:#fff;padding:34px 0 24px;margin-top:20px}
.foot-inner{display:flex;justify-content:space-between;gap:26px;flex-wrap:wrap}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;font-size:.93rem;font-weight:600}
.foot-bottom{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);font-size:.85rem}

@media (max-width:860px){
  .pdp,.cart-layout,.field-row{grid-template-columns:1fr}
  .head-inner{gap:12px}
  .search{order:3;width:100%;flex-basis:100%}
}

@media (prefers-color-scheme:dark){
  :root{--bg:#0e0f16;--panel:#171923;--ink:#eef0f7;--muted:#9aa0b4;--line:#262a38;
        --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35)}
  .site-head{background:rgba(14,15,22,.88)}
  .search input,.field input,.field textarea,.field select,select,.chip,.qty,.qty-input{background:#12141d;color:var(--ink)}
  .search button{background:var(--brand)}
  .btn.light{background:#12141d;color:var(--ink)}
  .site-foot{background:#12141d}
  .ref{background:#12141d}
  .flash.success{background:#0d2018;color:#86efac;border-color:#14532d}
  .flash.error{background:#2a1017;color:#fda4af;border-color:#7f1d1d}
  .check{background:#0d2018;color:#86efac}
  .status{background:#1f2331;color:var(--muted)}
  .btn.danger{background:#12141d;color:#fca5a5;border-color:#7f1d1d}
}