:root{--bg:#f5f7fb;--surface:#fff;--text:#172033;--muted:#667085;--primary:#155eef;--primary2:#0b4bd4;--border:#e4e7ec;--danger:#b42318;--shadow:0 12px 30px rgba(15,23,42,.08)}[data-theme=dark]{--bg:#0c111d;--surface:#161b26;--text:#f2f4f7;--muted:#98a2b3;--border:#344054;--shadow:none}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}.site-header{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1180px)/2));background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.site-header nav{display:flex;gap:24px;align-items:center}.brand{font-size:20px}.theme-toggle{border:0;background:transparent;color:var(--text);font-size:20px}.hero{max-width:1180px;margin:40px auto;padding:64px;display:grid;grid-template-columns:1.4fr .6fr;gap:50px;align-items:center;background:linear-gradient(135deg,#0b4bd4,#155eef);color:white;border-radius:28px}.hero h1{font-size:clamp(42px,6vw,72px);line-height:1.02;margin:12px 0}.hero p{font-size:19px;max-width:650px}.hero-art{height:260px;border-radius:30px;background:rgba(255,255,255,.14);display:grid;place-items:center;font-size:76px;font-weight:800}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:800}.section{max-width:1180px;margin:48px auto;padding:0 20px}.narrow{max-width:760px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section h1,.section h2{margin:0}.search,.filters{display:flex;gap:10px;flex-wrap:wrap}.search input,.filters input,.filters select{min-height:46px;border-radius:10px;border:1px solid var(--border);padding:0 14px;background:var(--surface);color:var(--text)}.search input{min-width:min(420px,100%)}.btn{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:10px;padding:12px 18px;background:var(--primary);color:white;font-weight:700;cursor:pointer}.btn:hover{background:var(--primary2)}.btn.secondary{background:transparent;color:var(--primary);border:1px solid var(--primary)}.wide{width:100%;margin-top:10px}.chips{display:flex;gap:10px;flex-wrap:wrap}.chips a{background:var(--surface);border:1px solid var(--border);padding:10px 15px;border-radius:999px}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.product-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden;transition:.2s}.product-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.product-image{aspect-ratio:1.1;background:#eef2f6;display:grid;place-items:center;color:#98a2b3}.product-image img{width:100%;height:100%;object-fit:cover}.product-body{padding:18px}.product-body h3{margin:6px 0}.product-body p{color:var(--muted);min-height:46px}.product-body strong{display:block;font-size:19px}.stock{display:inline-block;margin-top:10px;font-size:12px;font-weight:700}.stock.ok{color:#067647}.stock.out{color:#b42318}.pagination{display:flex;gap:8px;justify-content:center;margin-top:30px}.pagination a{padding:8px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.pagination a.active{background:var(--primary);color:#fff}.product-detail{display:grid;grid-template-columns:1.1fr .9fr;gap:48px}.main-image{aspect-ratio:1;background:var(--surface);border-radius:20px;display:grid;place-items:center;overflow:hidden}.main-image img{width:100%;height:100%;object-fit:contain}.thumbs{display:flex;gap:10px;margin-top:12px}.thumbs button{width:70px;height:70px;border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:3px}.thumbs img{width:100%;height:100%;object-fit:cover}.product-info h1{font-size:44px;line-height:1.08}.price{font-size:32px;font-weight:800;margin:22px 0}.availability{padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:10px}.tech{margin-top:24px}.tech dl{display:grid;grid-template-columns:120px 1fr}.tech dt,.tech dd{padding:8px 0;border-bottom:1px solid var(--border);margin:0}.prose{font-size:17px}.form{display:grid;gap:16px}.form label{display:grid;gap:6px;font-weight:600}.form input,.form select,.form textarea{width:100%;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;padding:12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:var(--shadow)}.alert{padding:12px;border-radius:10px;background:#fee4e2;color:#912018}.alert.success{background:#dcfae6;color:#05603a}.site-footer{max-width:1180px;margin:70px auto 0;padding:30px 20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;color:var(--muted)}.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}.auth-card{width:min(440px,100%)}.admin-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.admin-nav{background:#101828;color:white;padding:24px;display:flex;flex-direction:column;gap:10px}.admin-nav .brand{margin-bottom:20px}.admin-nav a,.admin-nav button{padding:11px;border-radius:8px;border:0;background:transparent;color:white;text-align:left}.admin-nav a:hover{background:#344054}.admin-nav form{margin-top:auto}.admin-main{padding:36px;overflow:auto}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.stat{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px}.stat span{color:var(--muted)}.stat strong{display:block;font-size:34px;margin-top:8px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:13px;border-bottom:1px solid var(--border)}th{font-size:12px;text-transform:uppercase;color:var(--muted)}.table-wrap{overflow:auto}.badge{padding:5px 9px;border-radius:999px;background:#eef4ff;color:#3538cd;font-size:12px}.form-grid{grid-template-columns:repeat(2,1fr)}.span2{grid-column:span 2}.actions{display:flex;align-items:center;gap:16px}.danger{margin-top:20px;background:none;border:0;color:var(--danger);font-weight:700}.inline-form{display:flex;align-items:end;margin-bottom:20px}.inline-form label{flex:1}@media(max-width:900px){.product-grid{grid-template-columns:repeat(2,1fr)}.hero,.product-detail{grid-template-columns:1fr}.hero-art{display:none}.admin-shell{grid-template-columns:1fr}.admin-nav{position:static;flex-direction:row;overflow:auto}.admin-main{padding:20px}.stats{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.site-header nav a{display:none}.hero{margin:15px;border-radius:18px;padding:32px 24px}.hero h1{font-size:42px}.product-grid{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column}.form-grid{grid-template-columns:1fr}.span2{grid-column:auto}.stats{grid-template-columns:1fr}.admin-nav .brand{display:none}.product-info h1{font-size:34px}}

/* Administração e autenticação */
.auth-card{display:grid;gap:18px;padding:42px;width:min(480px,100%)}
.auth-card h1{margin:0;font-size:42px;line-height:1.1}
.auth-card p{margin:0}
.auth-card label{display:grid;gap:7px;font-weight:650}
.auth-card label span{display:block}
.auth-card input{display:block;width:100%;min-width:0;height:48px;border:1px solid var(--border);border-radius:10px;padding:0 13px;background:var(--surface);color:var(--text)}
.auth-card input:focus{outline:3px solid rgba(21,94,239,.16);border-color:var(--primary)}
.auth-link{text-align:center;color:var(--primary);font-weight:650}
.muted{color:var(--muted)}
.check{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center;gap:10px!important}
.check input{width:18px!important;height:18px!important}
@media(max-width:600px){.auth-card{padding:28px 22px}.auth-card h1{font-size:34px}}