*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:#172533;background:#f4f7fb}a{color:#245b88;text-decoration:none}h1,h2{margin-top:0}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:#13283b;color:#fff;padding:24px 16px}.brand{display:flex;align-items:center;gap:10px;margin-bottom:30px}.brand.centered{justify-content:center;color:#172533}.brand-mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:#245b88;color:#fff;font-weight:800}.brand small{display:block;opacity:.7;font-size:11px}.sidebar nav{display:grid;gap:7px}.sidebar nav a{color:#dce9f5;padding:10px 12px;border-radius:9px}.sidebar nav a:hover{background:#1d3b55}.nav-muted{font-size:11px;opacity:.45;padding:15px 12px;line-height:1.6}.main{min-width:0}.topbar{height:72px;background:#fff;border-bottom:1px solid #dfe7ef;display:flex;align-items:center;justify-content:space-between;padding:0 28px}.topbar small{display:block;color:#6b7b8c}.content{padding:28px;max-width:1440px}.page-title{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:22px}.page-title p,.muted{color:#6b7b8c}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:20px}.stat,.card{background:#fff;border:1px solid #dfe7ef;border-radius:14px;padding:20px;box-shadow:0 4px 18px rgba(15,35,55,.04)}.stat span{display:block;color:#6b7b8c;font-size:13px}.stat strong{font-size:30px}.card-head{display:flex;align-items:center;justify-content:space-between}.card.narrow{max-width:760px}.card.flat{box-shadow:none}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid #dfe7ef;font-size:14px}th{font-size:12px;color:#6b7b8c;text-transform:uppercase}.btn{border:0;border-radius:9px;padding:10px 15px;font-weight:700;cursor:pointer;display:inline-block}.btn.primary{background:#245b88;color:#fff}.btn.ghost{background:#edf3f8;color:#172533}.btn.wide{width:100%;text-align:center}.stack{display:grid;gap:14px}label{font-size:13px;font-weight:700;display:grid;gap:6px}input,select,textarea{width:100%;border:1px solid #cfd9e3;border-radius:9px;padding:11px;background:#fff;font:inherit}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.inline-form{display:grid;grid-template-columns:1fr .7fr auto;gap:8px;margin-bottom:14px}.simple-list{list-style:none;margin:0;padding:0}.simple-list li{display:flex;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1px solid #dfe7ef}.simple-list small{display:block;color:#6b7b8c}.alert{padding:12px 14px;border-radius:10px;margin-bottom:16px}.alert.success{background:#eaf8f0;color:#17623a}.alert.error{background:#fff0f0;color:#8a2626}.alert.fade{opacity:.25;transition:opacity .6s}.guest-body,.installer-body{min-height:100vh;display:grid;place-items:center;padding:30px;background:linear-gradient(145deg,#edf4fa,#f8fbfd)}.guest-card,.installer{background:#fff;border:1px solid #dfe7ef;border-radius:18px;padding:30px;width:min(520px,100%);box-shadow:0 20px 60px rgba(22,52,78,.12)}.installer{width:min(720px,100%)}.center{text-align:center}.steps{display:flex;justify-content:center;gap:8px;margin:14px 0 24px}.steps span{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#e9eff5;color:#6b7b8c;font-weight:700}.steps span.active{background:#245b88;color:#fff}.requirements{list-style:none;padding:0}.requirements li{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid #dfe7ef}.ok{color:#17834c}.bad{color:#b83232}@media(max-width:850px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.stats{grid-template-columns:1fr 1fr}.content{padding:18px}.grid2{grid-template-columns:1fr}.inline-form{grid-template-columns:1fr}.topbar{padding:0 18px}}@media(max-width:520px){.stats{grid-template-columns:1fr}.page-title{align-items:flex-start;flex-direction:column}.guest-card,.installer{padding:20px}}
.nav-section{display:block;color:#7fa3c0;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:16px 12px 5px}.module-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:end}.filter-row{display:grid;grid-template-columns:220px 1fr auto;gap:12px;align-items:end}.table-wrap{overflow-x:auto}.table-wrap small,td small{display:block;color:#6b7b8c;margin-top:3px}.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#edf3f8;color:#42647f;font-size:11px;font-weight:800;text-transform:capitalize}.badge.green{background:#e6f7ee;color:#187447}.badge.red{background:#fdecec;color:#a63131}.version-pill{background:#13283b;color:#fff;border-radius:999px;padding:8px 12px;font-size:12px;font-weight:800}.checkline{display:flex;align-items:center;gap:8px}.checkline input,.checks input{width:auto}.checks{display:flex;gap:18px;flex-wrap:wrap}.checks label{display:flex;grid-template-columns:auto 1fr;align-items:center;gap:7px}.note{background:#f4f8fb;border:1px solid #d8e5ef;padding:12px;border-radius:10px;margin-top:14px;font-size:13px}.actions{display:flex;justify-content:flex-end;margin-top:16px}.callout-card{background:linear-gradient(135deg,#f7fbff,#eef6fb)}
@media(max-width:1000px){.module-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr 1fr}.filter-row{grid-template-columns:1fr 1fr}.filter-row .btn{grid-column:1/-1}}@media(max-width:650px){.form-grid,.filter-row{grid-template-columns:1fr}}
/* v0.4 responsive navigation, language selector and document center */
.topbar-left,.topbar-actions{display:flex;align-items:center;gap:12px}.mobile-menu-btn,.sidebar-mobile-head,.mobile-overlay{display:none}.mobile-menu-btn{width:42px;height:42px;border:0;border-radius:10px;background:#edf3f8;padding:10px;cursor:pointer}.mobile-menu-btn span{height:2px;background:#172533;display:block;margin:4px 0;border-radius:2px}.icon-btn{border:0;background:transparent;color:#fff;font-size:30px;line-height:1;cursor:pointer}.locale-form select{width:auto;padding:8px 28px 8px 10px;font-weight:800}.document-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}.document-card{background:#fff;border:1px solid #dfe7ef;border-radius:14px;padding:18px;display:flex;align-items:center;gap:12px;color:#172533}.document-card>div{flex:1}.document-card small{display:block;color:#6b7b8c;margin-top:4px}.document-icon{width:44px;height:44px;border-radius:12px;background:#eaf2f8;display:grid;place-items:center;color:#245b88;font-size:20px}.print-sheet{background:#fff;border:1px solid #dfe7ef;max-width:900px;margin:0 auto;padding:44px;min-height:560px;box-shadow:0 10px 30px rgba(15,35,55,.06)}.doc-header{display:flex;gap:14px;align-items:center;border-bottom:2px solid #245b88;padding-bottom:16px;margin-bottom:25px}.doc-header h2,.doc-header p{margin:0}.doc-logo{width:58px;height:58px;border-radius:14px;background:#245b88;color:#fff;display:grid;place-items:center;font-size:28px;font-weight:900}.doc-title{text-align:center;margin:22px 0}.id-layout{display:grid;grid-template-columns:150px 1fr 100px;gap:25px;align-items:center}.photo-box,.qr-box{height:160px;border:2px dashed #cfd9e3;display:grid;place-items:center;color:#8493a3}.qr-box{height:100px}.doc-fields{display:grid;grid-template-columns:1fr 1fr;gap:4px 25px;background:#f7f9fb;padding:14px;border-radius:10px;margin-bottom:18px}.signature-row{display:flex;justify-content:space-between;gap:25px;margin-top:60px}.signature-row span{flex:1;border-top:1px solid #7d8994;padding-top:8px;text-align:center;font-size:12px}.certificate-body{text-align:center;padding:60px 25px}.certificate-body h1{font-size:36px;color:#245b88}.certificate-body h2{font-size:30px;margin:22px 0}.eyebrow{letter-spacing:.15em;font-size:11px;font-weight:800}.certificate-meta{margin-top:30px;color:#6b7b8c}
@media(max-width:850px){body.menu-open{overflow:hidden}.sidebar{display:block;position:fixed;z-index:1002;left:0;top:0;bottom:0;width:min(310px,86vw);transform:translateX(-105%);transition:transform .22s ease;overflow-y:auto;box-shadow:15px 0 40px rgba(0,0,0,.2)}body.menu-open .sidebar{transform:translateX(0)}.mobile-overlay{position:fixed;z-index:1001;inset:0;background:rgba(12,27,41,.52)}body.menu-open .mobile-overlay{display:block}.mobile-menu-btn{display:block}.sidebar-mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.brand{margin-bottom:18px}.topbar{height:auto;min-height:72px;padding:12px 16px;gap:10px}.topbar-actions{gap:7px}.topbar-actions .btn{padding:9px 11px}.document-grid{grid-template-columns:1fr 1fr}.print-sheet{padding:24px}.id-layout{grid-template-columns:110px 1fr}.id-layout .qr-box{grid-column:1/-1}.doc-fields{grid-template-columns:1fr}}
@media(max-width:560px){.document-grid{grid-template-columns:1fr}.topbar strong{font-size:14px}.topbar small{font-size:11px}.locale-form select{padding:8px}.content{padding:16px}.print-sheet{padding:17px}.signature-row{flex-direction:column;margin-top:35px}.certificate-body{padding:30px 5px}.certificate-body h1{font-size:28px}}
@media print{.sidebar,.topbar,.no-print,.mobile-overlay{display:none!important}.app-shell{display:block}.content{padding:0}.print-sheet{border:0;box-shadow:none;max-width:none;margin:0;padding:18mm}.main{display:block}body{background:#fff}}

/* v0.4.1 mobile navigation hotfix + sidebar language switcher */
.sidebar{display:flex;flex-direction:column;min-height:100vh}.sidebar nav{flex:1}.sidebar-language{margin:0 0 14px;padding:12px;border:1px solid rgba(255,255,255,.12);border-radius:12px;background:rgba(255,255,255,.04)}.sidebar-language>span{display:block;color:#91abc1;font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}.language-buttons{display:grid;grid-template-columns:1fr 1fr;gap:7px}.language-buttons form{margin:0}.language-btn{width:100%;border:1px solid rgba(255,255,255,.18);background:transparent;color:#dce9f5;border-radius:8px;padding:8px 10px;font-weight:800;cursor:pointer}.language-btn.active{background:#fff;color:#17324a;border-color:#fff}.mobile-menu-btn{flex:0 0 44px;width:44px;height:44px;display:none;align-items:center;justify-content:center;border:1px solid #d8e3ec;background:#f4f7fa;color:#172533}.hamburger{font-size:25px;line-height:1;font-weight:700;transform:translateY(-1px)}
@media(max-width:1100px){
  body.menu-open{overflow:hidden}.app-shell{grid-template-columns:1fr}.sidebar{display:flex;position:fixed;z-index:1002;left:0;top:0;bottom:0;width:min(320px,88vw);transform:translateX(-105%);transition:transform .22s ease;overflow-y:auto;box-shadow:15px 0 40px rgba(0,0,0,.2);padding-top:max(18px,env(safe-area-inset-top))}body.menu-open .sidebar{transform:translateX(0)}.mobile-overlay{position:fixed;z-index:1001;inset:0;background:rgba(12,27,41,.52)}body.menu-open .mobile-overlay{display:block}.mobile-menu-btn{display:inline-flex!important}.sidebar-mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.topbar{position:sticky;top:0;z-index:900;min-height:72px;height:auto;padding:10px 16px;gap:10px}.topbar-left{min-width:0;flex:1}.topbar-left>div{min-width:0}.topbar-left strong,.topbar-left small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar-actions{flex:0 0 auto}.content{padding:18px}.module-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr 1fr}.filter-row{grid-template-columns:1fr 1fr}.filter-row .btn{grid-column:1/-1}.document-grid{grid-template-columns:1fr 1fr}.print-sheet{padding:24px}.id-layout{grid-template-columns:110px 1fr}.id-layout .qr-box{grid-column:1/-1}.doc-fields{grid-template-columns:1fr}}
@media(max-width:600px){.topbar{padding:9px 12px}.topbar-actions .btn{padding:9px 10px;font-size:12px}.mobile-menu-btn{flex-basis:42px;width:42px;height:42px}.topbar strong{font-size:13px}.topbar small{font-size:10px}.content{padding:14px}.stats{grid-template-columns:1fr}.page-title{align-items:flex-start;flex-direction:column}.document-grid{grid-template-columns:1fr}.form-grid,.filter-row{grid-template-columns:1fr}.print-sheet{padding:17px}.signature-row{flex-direction:column;margin-top:35px}.certificate-body{padding:30px 5px}.certificate-body h1{font-size:28px}}
/* v0.5 SaaS administration + school workspace context */
.school-context{margin:10px 0 4px;padding:12px;border-radius:12px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12)}.school-context span{display:block;color:#8ca9c0;font-size:10px;text-transform:uppercase;font-weight:800;letter-spacing:.07em}.school-context strong{display:block;margin:5px 0 9px;line-height:1.25}.context-exit{border:0;background:transparent;color:#dce9f5;padding:0;font-weight:700;cursor:pointer}.desktop-context-exit{margin:0}.metric-note{font-size:12px;color:#6b7b8c}.empty-state{padding:24px;text-align:center;color:#6b7b8c}.topbar-actions form{margin:0}@media(max-width:700px){.desktop-context-exit{display:none}.table-wrap .btn{white-space:nowrap}}