:root{
  --bg:#f7f8fb; --panel:#ffffff; --ink:#1a202c; --muted:#718096;
  --brand:#0071e3; --brand-dark:#0058b0; --brand-soft:#e6f0fd;
  --accent:#111827; --border:#e2e8f0; --success:#38a169; --danger:#c53030;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 6px 20px -8px rgba(0,0,0,.08);
  --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}

/* header */
header{background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:60px}
.logo{color:var(--ink);font-weight:800;font-size:18px;letter-spacing:-.3px;display:flex;align-items:center;gap:6px}
.logo:hover{text-decoration:none}
.logo-mark{background:var(--ink);color:#fff;width:26px;height:26px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:14px}
nav{display:flex;align-items:center;gap:20px;font-size:14px}
nav a{color:var(--ink);font-weight:500}
nav a:hover{color:var(--brand);text-decoration:none}
nav .muted{color:var(--muted);font-weight:400}
.pill-user{background:var(--brand-soft);color:var(--brand-dark);padding:4px 10px;border-radius:999px;font-size:13px;font-weight:600}
.pill-user:hover{background:var(--brand);color:#fff !important}
main{padding:32px 0 60px}
h1{margin:0 0 18px;font-size:28px;letter-spacing:-.4px}
h2{margin:0 0 14px;font-size:22px}
h3{margin:0 0 12px;font-size:16px}
p{margin:0 0 14px}
.muted{color:var(--muted)}
.center{text-align:center}
code{background:#edf2f7;color:#2d3748;padding:2px 6px;border-radius:4px;font-family:ui-monospace,Menlo,monospace;font-size:12px}
pre{background:#111827;color:#e2e8f0;padding:14px;border-radius:8px;overflow:auto;font-size:12px}

/* buttons */
.btn{display:inline-block;background:var(--brand);color:#fff !important;padding:10px 16px;border-radius:8px;border:0;cursor:pointer;font-weight:600;font-size:14px;transition:.15s;font-family:inherit}
.btn:hover{background:var(--brand-dark);text-decoration:none}
.btn-sm{padding:6px 12px;font-size:13px;border-radius:6px}
.btn-lg{padding:14px 22px;font-size:15px}
.btn-block{display:block;width:100%;text-align:center;margin-top:12px}

/* hero */
.hero{background:linear-gradient(120deg,var(--brand-soft) 0%,#f0f6ff 100%);border-radius:16px;padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:36px;overflow:hidden}
.hero-copy h1{font-size:34px;line-height:1.15;margin-bottom:12px;letter-spacing:-.6px}
.hero-copy p{color:var(--muted);font-size:15px;margin-bottom:20px;max-width:520px}
.hero-art{font-size:110px;flex-shrink:0}

/* section head */
.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:16px;flex-wrap:wrap}
.section-head h1,.section-head h2{margin:0}

/* product grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.grid-4{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
.card{background:var(--panel);padding:16px;border-radius:var(--radius);border:1px solid var(--border);transition:.15s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.card-link{color:inherit}
.card-link:hover{text-decoration:none}
.ph{background:linear-gradient(135deg,#e2e8f0 0%,#cbd5e0 100%);border-radius:8px;height:130px;display:flex;align-items:center;justify-content:center;font-size:42px;font-weight:700;color:#4a5568;margin-bottom:12px;letter-spacing:-1px}
.pname{font-weight:600;font-size:15px;margin-bottom:4px}
.pdesc{font-size:13px;margin-bottom:12px;min-height:32px}
.pprice{color:var(--ink);font-weight:700;font-size:16px}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:8px}
.card-nav{align-items:center;justify-content:center;text-align:center;font-size:28px;color:var(--ink);gap:8px}
.card-nav div{font-size:14px;font-weight:600;margin-top:4px}
.card-nav:hover{color:var(--brand)}

/* forms */
.form{background:var(--panel);padding:22px;border-radius:var(--radius);border:1px solid var(--border);max-width:420px}
.form-wide{max-width:none}
.form label{display:block;margin-bottom:14px;font-size:13px;color:var(--muted);font-weight:500}
.form input,.form select{display:block;width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;margin-top:4px;font-size:14px;color:var(--ink);background:#fff;font-family:inherit;transition:.15s}
.form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.form fieldset{border:0;padding:0;margin:0 0 18px}
.form legend{padding:0;font-weight:600;font-size:14px;color:var(--ink);margin-bottom:10px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.auth-box{max-width:400px;margin:40px auto;background:var(--panel);padding:36px;border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow)}
.auth-box .form{background:transparent;border:0;padding:0;max-width:none}

/* search bar */
.search{display:flex;gap:8px}
.search input{padding:8px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;min-width:260px;font-family:inherit}
.search input:focus{outline:none;border-color:var(--brand)}

/* alerts / empty */
.err{background:#fed7d7;color:#742a2a;padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:14px}
.ok{background:#c6f6d5;color:#22543d;padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:14px}
.empty{background:var(--panel);padding:60px 20px;border-radius:var(--radius);border:1px solid var(--border);text-align:center;color:var(--muted)}
.empty-emoji{font-size:60px;margin-bottom:12px}
.empty .btn{margin-top:16px}

/* tables */
.tbl{width:100%;border-collapse:collapse;background:var(--panel);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.tbl th,.tbl td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:14px;vertical-align:top}
.tbl th{background:#f8fafc;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.tbl tr:last-child td{border-bottom:0}
.row-total td{background:#f8fafc}

/* cart layout */
.cart-layout{display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start}
@media(max-width:820px){.cart-layout,.checkout-layout,.order-detail-grid,.profile-grid{grid-template-columns:1fr}}
.cart-row{display:grid;grid-template-columns:80px 1fr auto auto;gap:14px;align-items:center;background:var(--panel);padding:14px 16px;border-radius:var(--radius);border:1px solid var(--border);margin-bottom:10px}
.cart-ph{background:linear-gradient(135deg,#e2e8f0 0%,#cbd5e0 100%);border-radius:8px;height:64px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#4a5568}
.cart-info .pname{margin-bottom:2px}
.cart-info .muted{font-size:13px}
.cart-qty{color:var(--muted);font-size:14px;min-width:40px;text-align:right}
.cart-line{font-weight:700;min-width:80px;text-align:right}
.summary{background:var(--panel);padding:22px;border-radius:var(--radius);border:1px solid var(--border);position:sticky;top:80px}
.summary h3{margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.summary .row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}
.summary .row.total{border-top:1px solid var(--border);margin-top:10px;padding-top:12px;font-weight:700;font-size:16px}

/* checkout */
.checkout-layout{display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start}

/* orders */
.order-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:14px}
.order-head{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:12px;border-bottom:1px solid var(--border);margin-bottom:12px}
.order-id{font-weight:700;font-size:15px}
.order-right{text-align:right}
.order-total{font-weight:700;font-size:16px;margin-top:4px}
.order-items{margin-bottom:12px}
.order-item{display:grid;grid-template-columns:1fr auto 80px;gap:14px;padding:4px 0;font-size:14px}
.order-item .muted{text-align:right;font-size:13px}
.order-item span:last-child{text-align:right;font-weight:600}
.order-foot{padding-top:8px;border-top:1px solid var(--border);text-align:right}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand-dark)}
.badge-placed{background:#fef3c7;color:#92400e}
.badge-shipped{background:#dbeafe;color:#1e40af}
.badge-delivered{background:#d1fae5;color:#065f46}

/* order detail */
.order-detail-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px;align-items:start}
.card-block{background:var(--panel);padding:20px;border-radius:var(--radius);border:1px solid var(--border);margin-bottom:14px}

/* profile */
.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.profile-grid .card-block:first-child{grid-column:1 / -1}
.kv{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
.kv:last-child{border-bottom:0}
.kv span{color:var(--muted)}
.apikey{display:block;padding:12px;background:#111827;color:#c6f6d5;border-radius:8px;font-size:12px;word-break:break-all}

/* admin stats */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:22px}
.stat{background:var(--panel);padding:20px;border-radius:var(--radius);border:1px solid var(--border)}
.stat-num{font-size:28px;font-weight:800;letter-spacing:-.5px}
.stat-label{color:var(--muted);font-size:13px;margin-top:2px}

/* footer */
footer{border-top:1px solid var(--border);padding:20px 0;text-align:center;color:var(--muted);font-size:13px;margin-top:60px;background:#fff}