/* ============ Design tokens (estilo Shopee) ============ */
:root{
  --bg:#ffffff; --fg:#0f172a; --muted:#64748b; --muted-bg:#f1f5f9;
  --card:#ffffff; --border:#e2e8f0; --accent:#fff7ed;
  --primary:#ee4d2d; --primary-glow:#ff7a4a; --primary-fg:#ffffff;
  --warning:#f59e0b; --success:#16a34a; --destructive:#ef4444;
  --shadow-card:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-glow:0 10px 30px -10px rgba(238,77,45,.35);
  --gradient-primary:linear-gradient(135deg,var(--primary),var(--primary-glow));
  --gradient-hot:linear-gradient(135deg,#ff3d00,#ff9100);
}
html.dark{
  --bg:#0b1220; --fg:#e2e8f0; --muted:#94a3b8; --muted-bg:#0f172a;
  --card:#111827; --border:#1f2937; --accent:#1f1207;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit}
.no-scrollbar::-webkit-scrollbar{display:none}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}

/* utilitários reaproveitados nas páginas */
.gradient-primary{background:var(--gradient-primary)}
.gradient-hot{background:var(--gradient-hot)}
.shadow-card{box-shadow:var(--shadow-card)}
.shadow-glow{box-shadow:var(--shadow-glow)}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.line-clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* header */
.site-header{position:sticky;top:0;z-index:40}
.header-top{background:var(--gradient-primary);color:#fff}
.header-row{max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem}
.brand{display:flex;align-items:center;gap:.5rem;font-weight:800;font-size:1.25rem}
.brand .logo{width:36px;height:36px;border-radius:.5rem;background:rgba(255,255,255,.18);display:grid;place-items:center;backdrop-filter:blur(6px)}
.search{flex:1;max-width:640px;position:relative}
.search input{width:100%;height:40px;border-radius:6px;padding:0 80px 0 36px;border:0;background:#fff;color:#111}
.search .ic{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:#64748b}
.search button{position:absolute;right:4px;top:4px;height:32px;padding:0 12px;border-radius:4px;background:var(--gradient-hot);color:#fff;font-weight:600;font-size:.8rem}
.icon-btn{position:relative;width:40px;height:40px;border-radius:6px;display:grid;place-items:center;color:#fff}
.icon-btn:hover{background:rgba(255,255,255,.15)}
.badge{position:absolute;top:-2px;right:-2px;min-width:18px;height:18px;padding:0 4px;border-radius:999px;background:#fff;color:#111;font-size:10px;font-weight:700;display:grid;place-items:center}
.dropdown{position:relative}
.dropdown-menu{position:absolute;right:0;top:46px;min-width:220px;background:var(--card);border:1px solid var(--border);border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.1);padding:6px;display:none;z-index:50}
.dropdown.open .dropdown-menu{display:block}
.dropdown-menu a,.dropdown-menu button{display:flex;align-items:center;gap:8px;width:100%;text-align:left;padding:8px 10px;border-radius:6px;font-size:.875rem}
.dropdown-menu a:hover,.dropdown-menu button:hover{background:var(--muted-bg)}
.dropdown-menu hr{border:0;border-top:1px solid var(--border);margin:4px 0}

.cat-bar{background:var(--card);border-bottom:1px solid var(--border)}
.cat-row{max-width:1280px;margin:0 auto;display:flex;gap:8px;overflow-x:auto;padding:.5rem 1rem}
.cat-chip{flex:0 0 auto;border:1px solid var(--border);background:var(--bg);border-radius:999px;padding:6px 12px;font-size:.75rem;font-weight:500}
.cat-chip:hover{border-color:var(--primary);color:var(--primary)}

/* container */
.container{max-width:1280px;margin:0 auto;padding:0 1rem}

/* product card */
.grid-products{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:640px){.grid-products{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1024px){.grid-products{grid-template-columns:repeat(5,1fr)}}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-card);transition:.2s;position:relative}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.card .ph{position:relative;aspect-ratio:1/1;background:var(--muted-bg);overflow:hidden}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card:hover .ph img{transform:scale(1.05)}
.card .info{padding:10px}
.card h3{font-size:.875rem;margin:0;min-height:2.5rem;color:var(--fg)}
.card .price{color:var(--primary);font-weight:800;font-size:1.05rem;margin-top:6px}
.card .old{color:var(--muted);text-decoration:line-through;font-size:.75rem;margin-left:6px}
.card .meta{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:.7rem;margin-top:4px}
.tag-discount{position:absolute;left:8px;top:8px;background:var(--gradient-hot);color:#fff;padding:2px 8px;border-radius:6px;font-weight:700;font-size:11px}
.tag-best{position:absolute;right:8px;top:8px;background:var(--warning);color:#1a1a1a;padding:2px 6px;border-radius:6px;font-weight:700;font-size:10px}
.fav-btn{position:absolute;right:8px;top:44px;width:32px;height:32px;border-radius:999px;background:rgba(255,255,255,.95);display:grid;place-items:center;backdrop-filter:blur(4px);box-shadow:0 1px 4px rgba(0,0,0,.1)}
.fav-btn.active{color:var(--primary)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.55rem 1rem;border-radius:8px;font-weight:600;font-size:.875rem;transition:.15s}
.btn-primary{background:var(--gradient-primary);color:#fff}
.btn-primary:hover{filter:brightness(1.05)}
.btn-outline{border:1px solid var(--border);background:var(--card);color:var(--fg)}
.btn-outline:hover{background:var(--muted-bg)}
.btn-danger{background:transparent;color:var(--destructive)}
.btn-danger:hover{background:rgba(239,68,68,.1)}
.btn-block{width:100%;justify-content:center}

/* forms */
.field{display:block;margin-bottom:12px}
.field label{display:block;font-size:.75rem;color:var(--muted);margin-bottom:4px;font-weight:500}
.field input,.field select,.field textarea{width:100%;height:40px;border:1px solid var(--border);background:var(--bg);color:var(--fg);border-radius:6px;padding:0 12px;font-size:.875rem;outline:none}
.field textarea{height:auto;padding:10px 12px;min-height:90px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(238,77,45,.15)}

/* banner */
.banner-wrap{position:relative;border-radius:12px;overflow:hidden;aspect-ratio:21/7;background:var(--muted-bg);margin:16px 0}
.banner-wrap .slides img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .6s}
.banner-wrap .slides img.active{opacity:1}
.banner-dots{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;gap:6px}
.banner-dots span{width:8px;height:8px;border-radius:999px;background:rgba(255,255,255,.5);cursor:pointer}
.banner-dots span.active{background:#fff;width:18px;transition:.2s}

/* toast */
.toast-wrap{position:fixed;top:16px;right:16px;z-index:100;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--card);border:1px solid var(--border);padding:10px 14px;border-radius:8px;box-shadow:var(--shadow-glow);font-size:.875rem;min-width:240px;animation:slidein .25s}
.toast.success{border-left:4px solid var(--success)}
.toast.error{border-left:4px solid var(--destructive)}
@keyframes slidein{from{transform:translateX(20px);opacity:0}to{transform:none;opacity:1}}

/* footer */
.site-footer{background:var(--card);border-top:1px solid var(--border);margin-top:48px;padding:32px 0;color:var(--muted);font-size:.85rem}
.footer-grid{max-width:1280px;margin:0 auto;padding:0 1rem;display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(4,1fr)}}
.footer-grid h4{color:var(--fg);font-size:.9rem;margin:0 0 8px}
.footer-grid a{display:block;padding:3px 0}

/* section title */
.section-title{display:flex;align-items:center;justify-content:space-between;margin:24px 0 12px}
.section-title h2{margin:0;font-size:1.15rem;font-weight:800}
.section-title .accent{color:var(--primary)}

/* admin sidebar */
.admin-layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
@media(max-width:768px){.admin-layout{grid-template-columns:1fr}}
.admin-side{background:var(--card);border-right:1px solid var(--border);padding:20px}
.admin-side h1{font-size:1.1rem;margin:0 0 18px;display:flex;align-items:center;gap:8px}
.admin-side nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:var(--muted);font-weight:500;font-size:.9rem;margin-bottom:4px}
.admin-side nav a:hover{background:var(--muted-bg);color:var(--fg)}
.admin-side nav a.active{background:var(--gradient-primary);color:#fff}
.admin-main{padding:28px;background:var(--muted-bg)}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:20px}
@media(min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}
.stat .lbl{font-size:.75rem;color:var(--muted);text-transform:uppercase;font-weight:600}
.stat .val{font-size:1.6rem;font-weight:800;margin-top:4px}

/* table */
.table{width:100%;border-collapse:collapse;background:var(--card);border-radius:12px;overflow:hidden;border:1px solid var(--border)}
.table th,.table td{padding:10px 12px;text-align:left;font-size:.85rem;border-bottom:1px solid var(--border)}
.table th{background:var(--muted-bg);color:var(--muted);font-size:.7rem;text-transform:uppercase;letter-spacing:.05em}
.table tr:last-child td{border-bottom:0}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:60;display:none;align-items:flex-start;justify-content:center;padding:24px;overflow-y:auto}
.modal-bg.open{display:flex}
.modal{background:var(--card);width:100%;max-width:760px;border-radius:14px;overflow:hidden;box-shadow:var(--shadow-glow)}
.modal header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border)}
.modal header h3{margin:0;font-size:1.05rem;font-weight:800}
.modal .body{padding:18px}
.modal footer{padding:14px 16px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px;background:var(--card)}

/* misc */
.row{display:flex;gap:12px;flex-wrap:wrap}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:640px){.grid-2,.grid-3{grid-template-columns:1fr}}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600}
.pill-success{background:rgba(22,163,74,.15);color:var(--success)}
.pill-warning{background:rgba(245,158,11,.15);color:var(--warning)}
.pill-primary{background:rgba(238,77,45,.15);color:var(--primary)}
.pill-muted{background:var(--muted-bg);color:var(--muted)}
.hint{color:var(--muted);font-size:.8rem}
.empty{padding:48px 16px;text-align:center;color:var(--muted);background:var(--card);border:1px dashed var(--border);border-radius:12px}