:root{
  --bg:#f5f1ea;
  --panel:#fffdf8;
  --ink:#181614;
  --muted:#716a62;
  --line:#e5d9c5;
  --accent:#14532d;
  --gold:#d3aa4d;
  --danger:#9b1c1c;
}
*{box-sizing:border-box}
html{min-height:100%;font-family:Inter,Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg)}
body{min-height:100vh;margin:0;background:#f4f0e8;letter-spacing:0}
a{color:inherit}
svg{width:1.15em;height:1.15em;fill:currentColor;display:block}
.main{min-height:calc(100vh - 66px);margin-left:0;padding:14px 18px 18px}
body[data-page="login"] .main,body[data-page="install"] .main{min-height:100vh;padding:0}
.sidebar{position:fixed;inset:0 auto 0 0;width:240px;background:#151515;color:#fff;padding:16px;display:flex;flex-direction:column;gap:18px}
.app-topbar{position:sticky;top:0;z-index:30;min-height:66px;background:rgba(255,253,248,.96);border-bottom:1px solid rgba(229,217,197,.95);display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 18px;box-shadow:0 10px 30px rgba(28,22,15,.05);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand.center{justify-content:center;text-align:left}
.brand-logo-link{display:block;text-decoration:none;color:inherit;border-radius:12px}
.brand-logo-link:focus-visible{outline:3px solid rgba(211,170,77,.55);outline-offset:3px}
.brand-logo{width:44px;height:44px;border-radius:12px;background:#fff;display:grid;place-items:center;overflow:hidden;color:#111;font-weight:950}
.brand-logo.fallback:before{content:"GS1"}
.brand-logo img{width:100%;height:100%;object-fit:contain;padding:6px}
.brand strong{display:block;font-size:1rem;line-height:1.1}
.brand small{display:block;color:rgba(255,255,255,.68);font-weight:750;margin-top:3px}
.app-brand .brand-logo{width:38px;height:38px;border:1px solid rgba(229,217,197,.9);box-shadow:none}
.app-brand .brand-logo img{padding:5px}
.app-brand strong{font-size:.98rem;color:#181614}
.app-brand small{color:var(--muted);font-size:.76rem;font-weight:850}
.topbar-logout{min-height:38px;border-radius:10px;padding:8px 12px;background:#181614;border-color:#181614;color:#fff}
.topbar-logout svg{width:18px;height:18px}
.login-brand small{color:var(--muted)}
.side-nav{display:grid;gap:8px}
.side-nav a{display:flex;align-items:center;gap:10px;min-height:46px;border-radius:12px;padding:10px 12px;text-decoration:none;color:rgba(255,255,255,.76);font-weight:900}
.side-nav a.active,.side-nav a:hover{background:#fff;color:#151515}
.page-head{margin-bottom:12px}
.headline{display:flex;align-items:center;gap:13px}
.headline-icon{width:42px;height:42px;border-radius:13px;background:#151515;color:#fff;display:grid;place-items:center;flex:0 0 auto}
.headline h1{margin:0;font-size:1.45rem;letter-spacing:0}
.headline p{margin:4px 0 0;color:var(--muted);font-weight:750}
.alert{border-radius:14px;padding:12px 14px;margin:0 0 14px;font-weight:850}
.alert.ok{background:#ecfdf3;color:#14532d;border:1px solid #b7ebc6}
.alert.error{background:#fff4f2;color:var(--danger);border:1px solid #ffc7bd}
.btn{min-height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;text-decoration:none;font:inherit;font-weight:950;cursor:pointer}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.form{display:grid;gap:14px}
.stack{display:grid;gap:14px}
.form label{display:grid;gap:7px;font-weight:950;color:#312b25;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
.form input{width:100%;min-height:48px;border-radius:13px;border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 12px;font:inherit;font-weight:800;letter-spacing:0;text-transform:none}
.form input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(211,170,77,.18)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check-row{display:flex!important;grid-template-columns:none!important;align-items:center;gap:10px;text-transform:none!important;letter-spacing:0!important;font-size:.92rem!important;color:var(--ink)!important}
.check-row input{width:20px!important;min-height:20px!important;height:20px;padding:0;flex:0 0 auto}
.install-actions{display:flex;gap:10px;flex-wrap:wrap}
.app-loading-overlay{position:fixed;inset:0;background:rgba(246,242,235,.72);backdrop-filter:blur(3px);z-index:9999;display:grid;place-items:center;padding:24px}
.app-loading-box{min-width:220px;max-width:320px;border:1px solid var(--line);background:#fffdf8;border-radius:18px;padding:18px 20px;box-shadow:0 22px 58px rgba(24,22,20,.14);display:grid;justify-items:center;gap:12px;text-align:center;font-weight:950;color:#1f1a15}
.app-loading-spinner{width:42px;height:42px;border-radius:50%;border:4px solid #eadfce;border-top-color:var(--accent);animation:app-spin .8s linear infinite}
.app-loading-box small{display:block;color:var(--muted);font-weight:800}
@keyframes app-spin{to{transform:rotate(360deg)}}
.app-mini-notice{position:fixed;right:18px;top:78px;z-index:120;background:#181614;color:#fff;border-radius:12px;padding:9px 12px;box-shadow:0 12px 30px rgba(24,22,20,.18);font-weight:900;font-size:.86rem;opacity:0;transform:translateY(-6px);transition:opacity .16s ease,transform .16s ease;pointer-events:none}
.app-mini-notice.is-visible{opacity:.92;transform:translateY(0)}
.oxay-signature{position:fixed;right:14px;bottom:12px;z-index:35;width:76px;height:30px;border:0;background:transparent;display:grid;place-items:center;text-decoration:none;box-shadow:none;opacity:.72;transition:opacity .16s ease,transform .16s ease}
.oxay-signature:hover,.oxay-signature:focus-visible{opacity:1;transform:translateY(-1px)}
.oxay-signature:focus-visible{outline:3px solid rgba(211,170,77,.55);outline-offset:3px}
.oxay-signature img{width:68px;max-height:22px;object-fit:contain;display:block;filter:brightness(0) saturate(100%)}
.oxay-signature.fallback:before{content:"oXay";font-weight:950;color:#181614;font-size:1rem}
.login-wrap,.install-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card,.install-card{width:min(100%,460px);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 22px 58px rgba(24,22,20,.10)}
.install-card{width:min(100%,760px)}
.install-card h1{margin:0 0 8px;font-size:1.65rem}
.muted{color:var(--muted);font-weight:750;line-height:1.45}
.login-brand{margin-bottom:20px}
.gs1-pdf-button{font-family:Arial,Helvetica,sans-serif}
@media(max-width:920px){
  .sidebar{position:static;width:auto;border-radius:0 0 18px 18px}
  .main{margin-left:0;padding:14px}
  .side-nav{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
  .form-grid{grid-template-columns:1fr}
  .app-topbar{padding:9px 12px}
  .app-brand small{display:none}
  .topbar-logout span{display:none}
  .topbar-logout{width:40px;padding:0}
  .main{padding:14px}
  .headline h1{font-size:1.3rem}
}
@media print{
  .no-print,.sidebar,.app-topbar{display:none!important}
  .main{margin:0!important;padding:0!important}
}