:root{--bg:#f8fafc;--card:#fff;--text:#0f172a;--muted:#64748b;--line:#e2e8f0;--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#dc2626}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--primary);text-decoration:none}.app-shell{min-height:100vh}.topbar{height:64px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:20}
.brand{font-weight:800;color:var(--text);font-size:1.1rem}.userbox{display:flex;gap:14px;align-items:center;font-size:.92rem}.layout{display:grid;grid-template-columns:230px 1fr;min-height:calc(100vh - 64px)}
.sidebar{background:#fff;border-right:1px solid var(--line);padding:20px}.sidebar nav{display:flex;flex-direction:column;gap:7px}.sidebar a{padding:11px 12px;border-radius:10px;color:#334155;font-weight:600}.sidebar a:hover{background:#eff6ff;color:var(--primary)}
.content{padding:24px;max-width:1450px;width:100%;margin:0 auto}.page-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:20px}.page-head h1{margin:0 0 5px;font-size:1.65rem}.page-head p{margin:0;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 4px 18px rgba(15,23,42,.04)}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:20px}.cards.compact{grid-template-columns:repeat(3,minmax(0,1fr))}
.stat span{display:block;color:var(--muted);font-size:.9rem;margin-bottom:10px}.stat strong{font-size:1.45rem}.stat.danger strong{color:var(--danger)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px}.card h2{margin:0 0 16px;font-size:1.05rem}.summary-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}.summary-row:last-child{border-bottom:0}
.section-head{display:flex;justify-content:space-between;align-items:center}.tx-list{display:flex;flex-direction:column}.tx-item{display:grid;grid-template-columns:12px 1fr auto auto;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);color:var(--text)}.tx-item:last-child{border-bottom:0}.tx-main{display:flex;flex-direction:column}.tx-main small,small,.muted{color:var(--muted)}.dot{width:10px;height:10px;border-radius:50%}.dot-inline{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:10px;padding:10px 15px;font-weight:700;cursor:pointer;font:inherit}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-dark)}.btn.secondary{background:#fff;border-color:var(--line);color:#334155}.btn.small{padding:7px 10px;font-size:.85rem}.btn.wide{width:100%}
.form-card{max-width:950px}.form-grid,.filter-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.full{grid-column:1/-1}label{display:block;font-weight:700;font-size:.9rem;margin-bottom:6px}input,select,textarea{width:100%;border:1px solid #cbd5e1;border-radius:10px;padding:11px 12px;background:#fff;color:var(--text);font:inherit}input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--primary)}textarea{resize:vertical}.form-actions{display:flex;gap:10px;margin-top:18px}.checkbox-card{padding:14px;border:1px dashed #cbd5e1;border-radius:12px}.checkbox-card label{display:flex;align-items:center;gap:9px;font-size:1rem}.checkbox-card input,.check-grid input{width:auto}
.flash{padding:12px 14px;border-radius:10px;margin-bottom:16px}.flash.success{background:#dcfce7;color:#166534}.flash.error{background:#fee2e2;color:#991b1b}
.filters{margin-bottom:20px}.filters details{margin-top:14px;border-top:1px solid var(--line);padding-top:12px}.filters summary{cursor:pointer;font-weight:700}.check-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:10px}.check-grid label{font-weight:500}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:800px}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:.82rem;text-transform:uppercase;color:var(--muted)}.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:.76rem;font-weight:800}.badge.paid{background:#dcfce7;color:#166534}.badge.unpaid,.badge.future{background:#e2e8f0;color:#334155}.badge.soon,.badge.today{background:#fef3c7;color:#92400e}.badge.late{background:#fee2e2;color:#991b1b}
.inline{display:inline}.link-btn{border:0;background:none;color:var(--primary);padding:0;cursor:pointer;font:inherit}.inline-form{display:grid;grid-template-columns:1fr 130px auto;gap:12px;align-items:end;margin-bottom:20px}.inline-edit{display:flex;gap:8px;align-items:center}.inline-edit input[type=text],.inline-edit input:not([type]){max-width:220px}.inline-edit input[type=color]{width:46px;padding:3px}
.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(135deg,#eff6ff,#f8fafc)}.login-card{width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:0 20px 50px rgba(15,23,42,.12)}.login-card h1{margin-top:0}.login-card p{color:var(--muted)}.login-card label{margin-top:14px}.login-card button{margin-top:18px}
.bottom-nav{display:none}
@media(max-width:1000px){.cards{grid-template-columns:repeat(2,1fr)}.layout{grid-template-columns:190px 1fr}.check-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){
 .topbar{padding:0 14px;height:58px}.userbox span{display:none}.layout{display:block}.sidebar{display:none}.content{padding:16px 14px 86px}.page-head{align-items:flex-start;flex-direction:column}.page-head .btn{width:100%}
 .cards,.cards.compact,.two-col{grid-template-columns:1fr 1fr;gap:10px}.card{padding:16px;border-radius:14px}.stat strong{font-size:1.2rem}.form-grid,.filter-grid{grid-template-columns:1fr}.full{grid-column:auto}.check-grid{grid-template-columns:1fr 1fr}
 .tx-item{grid-template-columns:10px 1fr auto}.tx-item>strong{grid-column:2/-1;text-align:right}.badge{justify-self:end}
 .bottom-nav{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);padding:8px max(8px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));z-index:30}
 .bottom-nav a{text-align:center;color:#475569;font-size:.82rem;padding:8px 4px}.bottom-nav .primary{background:var(--primary);color:#fff;border-radius:12px}
 .inline-form{grid-template-columns:1fr}.inline-edit{flex-wrap:wrap}
}
@media(max-width:480px){.cards,.cards.compact,.two-col{grid-template-columns:1fr}.check-grid{grid-template-columns:1fr}.userbox{font-size:.85rem}}

.scanner-card{max-width:760px;margin-bottom:18px}.scanner-card #reader{width:100%;overflow:hidden;border-radius:12px}.scan-status{margin-top:14px;padding:12px;border-radius:10px;background:#eff6ff;color:#1e40af}.scan-status.success{background:#dcfce7;color:#166534}.scan-status.warning{background:#fef3c7;color:#92400e}.scan-status.working{background:#e0f2fe;color:#075985}.scan-actions{margin-top:12px}.scan-help{max-width:760px}.scan-help p{line-height:1.55}

.reset-box summary{cursor:pointer;color:var(--primary);font-weight:700;white-space:nowrap}
.reset-password-form{display:grid;grid-template-columns:minmax(150px,1fr) minmax(150px,1fr) auto;gap:8px;align-items:center;margin-top:10px;min-width:500px}
.reset-password-form input{padding:8px 10px}
@media(max-width:760px){
 .reset-password-form{grid-template-columns:1fr;min-width:260px}
}