*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--primary:#C75B39;--primary-dark:#a8482e;--accent:#E8A838;--bg:#FFF8F0;--card:#fff;--text:#3D2B1F;--text-light:#7a6555;--border:#d6ccc2;--radius:12px;--shadow:0 1px 3px rgba(61,43,31,.06);--shadow-lg:0 8px 24px rgba(61,43,31,.12);--max-w:820px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;min-height:100dvh;display:flex;flex-direction:column}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.skip-link{position:absolute;top:-100%;left:1rem;background:var(--primary);color:#fff;padding:.5rem 1rem;border-radius:0 0 8px 8px;z-index:1000;font-weight:600}
.skip-link:focus{top:0}
:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:4px}

/* ===== BURGER + SIDENAV ===== */
.burger{position:fixed;top:1rem;left:1rem;z-index:900;background:var(--card);border:1px solid var(--border);border-radius:8px;width:40px;height:40px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;box-shadow:var(--shadow);transition:box-shadow .15s}
.burger:hover{box-shadow:var(--shadow-lg)}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s,opacity .2s}

.overlay{position:fixed;inset:0;background:rgba(61,43,31,.3);z-index:950;opacity:0;pointer-events:none;transition:opacity .25s}
.overlay.open{opacity:1;pointer-events:auto}

.sidenav{position:fixed;top:0;left:0;bottom:0;width:260px;background:var(--card);border-right:1px solid var(--border);z-index:1000;transform:translateX(-100%);transition:transform .25s ease;display:flex;flex-direction:column;box-shadow:4px 0 20px rgba(61,43,31,.08)}
.sidenav.open{transform:translateX(0)}
.sidenav-head{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 1rem;border-bottom:1px solid var(--border)}
.sidenav-logo{font-size:1.1rem;font-weight:800;color:var(--text)}
.sidenav-logo span{color:var(--primary)}
.sidenav-close{background:none;border:none;font-size:1.5rem;color:var(--text-light);cursor:pointer;padding:0 .25rem;line-height:1}
.sidenav-close:hover{color:var(--primary)}
.sidenav a{display:block;padding:.7rem 1.25rem;font-size:.9rem;font-weight:500;color:var(--text);border-left:3px solid transparent;transition:background .1s,border-color .1s}
.sidenav a:hover{background:rgba(199,91,57,.05);border-left-color:var(--primary);text-decoration:none;color:var(--primary)}
.sidenav-bottom{margin-top:auto;padding:1rem 1.25rem;border-top:1px solid var(--border)}
.sidenav-lang{display:inline-block;font-size:.75rem;font-weight:700;padding:.3rem .7rem;border:1px solid var(--border);border-radius:6px;color:var(--text-light)}
.sidenav-lang:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}

/* ===== HOMEPAGE ===== */
.home-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:1rem;padding:4.5rem 2rem 1.5rem;flex:1;min-height:0}
.home-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;display:flex;align-items:flex-start;gap:1rem;box-shadow:var(--shadow);transition:box-shadow .2s,transform .15s,border-color .15s;overflow:hidden}
.home-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);text-decoration:none;border-color:var(--primary)}
.home-card--large{grid-column:1 / -1}
.home-card-icon{font-size:2.5rem;line-height:1;flex-shrink:0}
.home-card h2{font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:.2rem}
.home-card p{color:var(--text-light);font-size:.85rem}

.home-footer{text-align:center;padding:1rem 2rem 1.5rem;color:var(--text-light);font-size:.75rem}

@media(max-width:550px){
  .home-grid{grid-template-columns:1fr;grid-template-rows:auto;padding:4rem 1.25rem 1rem;gap:.75rem}
  .home-card--large{grid-column:auto}
  .home-card{padding:1.25rem}
  .home-card-icon{font-size:2rem}
}

/* ===== TOOL PAGES ===== */
main{flex:1;max-width:var(--max-w);margin:0 auto;padding:4.5rem 1.5rem 2rem;width:100%}
h1{font-size:1.4rem;margin-bottom:.2rem}
.subtitle{color:var(--text-light);margin-bottom:1.5rem;font-size:.9rem}

.tool-area{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow);margin-bottom:1.5rem}
label{display:block;font-weight:600;margin-bottom:.4rem;font-size:.85rem}
input[type="text"],input[type="number"],input[type="url"],textarea,select{width:100%;padding:.5rem .65rem;border:1px solid var(--border);border-radius:8px;font-size:.9rem;font-family:var(--font);background:var(--bg);transition:border-color .15s}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(199,91,57,.1)}
textarea{resize:vertical;min-height:100px;font-family:"SF Mono",Monaco,Consolas,monospace;font-size:.8rem}
button,.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:background .15s}
button:hover,.btn:hover{background:var(--primary-dark)}
.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--border)}

.result-box{margin-top:1rem;padding:.75rem;background:var(--bg);border-radius:8px;border:1px solid var(--border);word-break:break-all}
.result-box pre{white-space:pre-wrap;font-family:"SF Mono",Monaco,Consolas,monospace;font-size:.8rem}
.controls{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:.75rem;align-items:end}
.controls .field{flex:1;min-width:130px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:.75rem;margin-top:.75rem}
.stat{text-align:center;padding:.75rem;background:var(--bg);border-radius:8px;border:1px solid var(--border)}
.stat .value{font-size:1.3rem;font-weight:700;color:var(--primary)}
.stat .label{font-size:.75rem;color:var(--text-light);margin-top:.2rem}
.copy-btn{font-size:.75rem;padding:.3rem .6rem;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;cursor:pointer}
.copy-btn:hover{background:var(--border)}
#qr-output{display:flex;justify-content:center;padding:1.25rem}
#qr-output canvas,#qr-output img{max-width:100%}

/* EAN-128 barcode grid */
.barcode-grid{display:grid;grid-template-columns:repeat(var(--cols,3),1fr);gap:.75rem;padding:1rem}
.barcode-cell{text-align:center;page-break-inside:avoid;break-inside:avoid}
.barcode-cell svg{max-width:100%;height:auto}

/* EAN history */
.ean-history{margin-top:1rem;border-top:1px solid var(--border);padding-top:.75rem}
.ean-history h3{font-size:.85rem;font-weight:600;margin-bottom:.5rem;display:flex;align-items:center;justify-content:space-between}
.ean-history-list{list-style:none;max-height:180px;overflow-y:auto}
.ean-history-list li{display:flex;align-items:center;gap:.5rem;padding:.3rem .5rem;font-size:.8rem;border-radius:6px;cursor:pointer;transition:background .1s}
.ean-history-list li:hover{background:rgba(199,91,57,.05)}
.ean-history-list li .ean-h-codes{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ean-history-list li .ean-h-date{color:var(--text-light);font-size:.7rem;flex-shrink:0}
.ean-h-del{background:none;border:none;color:var(--text-light);cursor:pointer;font-size:.7rem;padding:.1rem .3rem;border-radius:4px;flex-shrink:0}
.ean-h-del:hover{color:#dc2626;background:rgba(220,38,38,.08)}
.ean-h-clear{font-size:.7rem;font-weight:400;color:var(--text-light);cursor:pointer;background:none;border:none;padding:.15rem .4rem;border-radius:4px}
.ean-h-clear:hover{color:#dc2626}

/* SEO content */
.seo-content{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border)}
.seo-content h2{font-size:1.05rem;margin-bottom:.5rem}
.seo-content p,.seo-content li{color:var(--text-light);font-size:.85rem;line-height:1.7}
.seo-content ul{padding-left:1.25rem;margin:.5rem 0}

/* Related tools */
.related{margin-top:1.5rem}
.related h2{font-size:1rem;margin-bottom:.75rem}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow);transition:box-shadow .2s,transform .15s}
.tool-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);text-decoration:none}
.tool-card h2{font-size:.95rem;margin-bottom:.25rem;color:var(--text)}
.tool-card p{color:var(--text-light);font-size:.8rem;line-height:1.5}

/* Print */
@media print{
  .burger,.sidenav,.overlay,.seo-content,.related,.no-print{display:none!important}
  main{max-width:100%;padding:0;margin:0}
  h1,.subtitle{display:none}
  .barcode-grid{gap:.25rem;padding:0}
  .barcode-cell svg{width:100%}
  @page{size:A4;margin:10mm}
}

/* Responsive */
@media(max-width:600px){
  main{padding:4rem 1rem 1.5rem}
  h1{font-size:1.2rem}
  .controls{flex-direction:column}
  .stats{grid-template-columns:1fr 1fr}
}