:root{
  --ink:#14213D; --ink-soft:#3B4A6B; --paper:#F5F6F8; --panel:#FFFFFF; --line:#DDE2EA;
  --teal:#0E6E63; --teal-soft:#E4F2EF; --amber:#9A5B13; --amber-soft:#FBEEDC;
  --red:#9B2C2C; --red-soft:#FBEAEA;
  --nav-bg:var(--ink);
  --nav-text:#DCE4F0; --nav-text-soft:#9DAAC7;
  --nav-link:#B9C4DC; --nav-link-active:#FFFFFF;
  --nav-border:rgba(255,255,255,.12); --nav-hover-bg:rgba(255,255,255,.06); --nav-active-bg:rgba(255,255,255,.08);
  --mono: ui-monospace, SFMono-Regular, "Roboto Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box;}
html,body{margin:0;height:100%;background:var(--paper);font-family:var(--sans);color:var(--ink);}
#app{display:flex;min-height:100vh;}
.nav{width:200px;flex-shrink:0;background:var(--nav-bg);color:var(--nav-text);padding:18px 0;display:flex;flex-direction:column;}
.nav .brand{font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--nav-link-active);padding:0 18px 16px 18px;border-bottom:1px solid var(--nav-border);margin-bottom:8px;}
.nav .brand small{display:block;font-weight:400;color:var(--nav-text-soft);font-size:11px;margin-top:3px;}
.nav a{display:block;padding:10px 18px;font-size:13px;color:var(--nav-link);text-decoration:none;border-left:3px solid transparent;}
.nav a:hover{background:var(--nav-hover-bg);color:var(--nav-link-active);}
.nav a.active{background:var(--nav-active-bg);color:var(--nav-link-active);font-weight:600;border-left-color:var(--teal);}
.nav-footer{margin-top:auto;padding:14px 18px;border-top:1px solid var(--nav-border);font-size:12px;}
.nav-footer .who{color:var(--nav-text-soft);margin-bottom:4px;}
.nav-footer .logout{color:var(--nav-text);}
.main{flex:1;min-width:0;padding:24px 28px;}
h1.page-title{font-size:18px;margin:0 0 4px 0;letter-spacing:-.01em;}
p.page-sub{margin:0 0 20px 0;font-size:12.5px;color:var(--ink-soft);}
.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px 18px;margin-bottom:16px;}
.card h2{font-size:13px;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
label{display:block;font-size:11.5px;color:var(--ink-soft);margin-bottom:4px;}
input,select{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:6px;font-size:13px;font-family:var(--sans);background:#fff;color:var(--ink);}
input:focus,select:focus{outline:2px solid var(--teal);outline-offset:0;border-color:var(--teal);}
.field{margin-bottom:10px;}
.btn{background:var(--teal);color:#fff;border:none;padding:9px 16px;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block;}
.btn:hover{filter:brightness(1.08);}
.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn.danger{background:var(--red);color:#fff;border:1px solid var(--red);}
.btn.danger:hover{background:var(--red-soft);color:var(--red);border-color:var(--red);}
.btn.sm{padding:4px 10px;font-size:11.5px;}
table{width:100%;border-collapse:collapse;font-size:12.5px;}
th{text-align:left;padding:8px 8px;border-bottom:1px solid var(--line);color:var(--ink-soft);font-weight:600;font-size:11.5px;text-transform:uppercase;letter-spacing:.03em;}
td{padding:8px 8px;border-bottom:1px solid var(--line);vertical-align:top;}
tr:hover td{background:#FAFBFC;}
.num{font-family:var(--mono);text-align:right;white-space:nowrap;}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11px;font-weight:700;letter-spacing:.02em;}
.badge.recovery{background:var(--amber-soft);color:var(--amber);}
.badge.normal{background:var(--teal-soft);color:var(--teal);}
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px;}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px 16px;}
.kpi .v{font-family:var(--mono);font-size:20px;font-weight:700;}
.kpi .l{font-size:11px;color:var(--ink-soft);margin-top:2px;}
.hint{font-size:11px;color:#8A93A6;margin-top:2px;}
.divider{height:1px;background:var(--line);margin:14px 0;}
.result-line{display:flex;justify-content:space-between;padding:6px 0;font-size:13px;border-bottom:1px dashed var(--line);}
.result-line.total{font-weight:700;border-bottom:none;padding-top:10px;font-size:14px;}
.result-line .v{font-family:var(--mono);}
.empty{text-align:center;padding:30px 10px;color:var(--ink-soft);font-size:13px;}
.flag{font-size:11px;padding:2px 7px;border-radius:4px;background:var(--red-soft);color:var(--red);font-weight:600;margin-left:6px;}
.checkline{display:flex;align-items:center;gap:7px;font-size:12.5px;margin:8px 0;}
.alert-ok{background:var(--teal-soft);color:var(--teal);border-radius:7px;padding:9px 12px;font-size:12.5px;margin-bottom:16px;}
.alert-error{background:var(--red-soft);color:var(--red);border-radius:7px;padding:9px 12px;font-size:12.5px;margin-bottom:16px;}

/* login page */
.login-body{display:flex;align-items:center;justify-content:center;height:100vh;}
.login-card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:28px;width:320px;}

/* ============================================================
   Responsive — Mobile & Tablet
   ============================================================ */
.hamburger {
  display:none;
  align-items:center;justify-content:center;
  width:40px;height:40px;
  background:none;border:none;border-radius:6px;
  cursor:pointer;
  color:var(--ink);
  padding:0;
  flex-shrink:0;
  touch-action:manipulation;
  -webkit-tap-highlight-color:transparent;
}
.nav-backdrop{display:none;}

.main-header{display:flex;align-items:center;gap:8px;margin-bottom:4px;}
.main-header h1.page-title{margin:0;flex:1;}

@media(max-width:767.98px){
  html{-webkit-text-size-adjust:100%;}
  .hamburger{display:inline-flex;}

  .nav{
    position:fixed;top:0;left:0;bottom:0;
    width:260px;max-width:80vw;
    z-index:1000;
    transform:translateX(-100%);
    transition:transform .25s ease;
    overflow-y:auto;
  }
  .nav.open{transform:translateX(0);}

  .nav-backdrop{
    display:block;position:fixed;inset:0;
    background:rgba(0,0,0,.35);
    z-index:999;
    opacity:0;pointer-events:none;
    transition:opacity .25s ease;
  }
  .nav-backdrop.visible{opacity:1;pointer-events:auto;}

  .main{padding:14px;}

  .kpi-row{grid-template-columns:1fr 1fr;gap:8px;}

  .grid,.grid2{grid-template-columns:1fr;gap:0;}
  .grid>.field,.grid2>.field{margin-bottom:10px;}

  .card:has(table){overflow-x:auto;-webkit-overflow-scrolling:touch;}

  input,select,textarea{font-size:16px;}

  .login-card{width:88%;max-width:340px;padding:24px 20px;}
  .card{padding:14px;}
  .kpi{padding:12px;}
  .kpi .v{font-size:17px;}
  h1.page-title{font-size:16px;}

  .nav a{
    padding:12px 18px;min-height:44px;
    display:flex;align-items:center;
  }
  .btn{
    min-height:44px;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .btn.sm{min-height:36px;}
}

@media(min-width:768px){
  .hamburger,.nav-backdrop{display:none!important;}
  .nav{transform:none!important;}
  .kpi-row{grid-template-columns:repeat(2,1fr);}
  .grid{grid-template-columns:repeat(2,1fr);}
  .main{padding:20px 24px;}
}

@media(min-width:1024px){
  .kpi-row{grid-template-columns:repeat(4,1fr);}
  .grid{grid-template-columns:repeat(3,1fr);}
  .main{padding:24px 28px;}
}