:root{
  --bg:#0f1420; --bg2:#161d2e; --card:#1b2436; --card2:#212c42;
  --border:#2a3550; --text:#e8ecf5; --muted:#8b95ac;
  --accent:#6c5ce7; --accent2:#00d2a8; --warn:#fdcb6e; --danger:#ff6b81;
  --dev1:#6c5ce7; --dev2:#00d2a8; --dev3:#fdcb6e; --radius:14px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{background:radial-gradient(1200px 600px at 10% -10%, #1c2540 0%, var(--bg) 60%);color:var(--text);font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;min-height:100vh;}

/* ---- Login ---- */
#loginScreen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;}
.login-card{width:100%;max-width:380px;background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px;box-shadow:0 20px 60px rgba(0,0,0,.45);}
.login-logo{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 18px;}
.login-card h1{text-align:center;font-size:20px;margin:0 0 4px;}
.login-card p.sub{text-align:center;color:var(--muted);font-size:13px;margin:0 0 26px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;letter-spacing:.3px;}
.field input{width:100%;padding:11px 13px;border-radius:10px;border:1px solid var(--border);background:#0e1424;color:var(--text);font-size:14px;outline:none;}
.field input:focus{border-color:var(--accent);}
.login-btn{width:100%;padding:12px;border:none;border-radius:10px;background:linear-gradient(135deg,var(--accent),#8b7cf6);color:#fff;font-size:14px;font-weight:600;cursor:pointer;margin-top:6px;}
.login-btn:hover{opacity:.9;}
.login-error{color:var(--danger);font-size:13px;margin-top:12px;text-align:center;min-height:16px;}

/* ---- Layout ---- */
header.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 26px;border-bottom:1px solid var(--border);background:rgba(22,29,46,.7);backdrop-filter:blur(6px);position:sticky;top:0;z-index:20;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:18px;}
.brand-text h2{margin:0;font-size:16px;}
.brand-text span{font-size:11.5px;color:var(--muted);}
.topbar-right{display:flex;align-items:center;gap:14px;}
.pill{font-size:12px;color:var(--muted);background:#111826;border:1px solid var(--border);padding:6px 12px;border-radius:20px;}
.logout-btn{background:transparent;border:1px solid var(--border);color:var(--text);padding:8px 14px;border-radius:9px;cursor:pointer;font-size:13px;text-decoration:none;display:inline-block;}
.logout-btn:hover{border-color:var(--danger);color:var(--danger);}

main{padding:22px 26px 60px;max-width:1500px;margin:0 auto;}

/* ---- Controls ---- */
.controls{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:20px;}
.ctrl-group{display:flex;flex-direction:column;gap:6px;min-width:150px;}
.ctrl-group label{font-size:11px;color:var(--muted);letter-spacing:.4px;text-transform:uppercase;}
.ctrl-group select, .ctrl-group input{background:#0e1424;border:1px solid var(--border);color:var(--text);padding:9px 11px;border-radius:9px;font-size:13.5px;outline:none;}
.mode-toggle{display:flex;background:#0e1424;border:1px solid var(--border);border-radius:9px;overflow:hidden;}
.mode-toggle button{flex:1;padding:9px 16px;background:transparent;border:none;color:var(--muted);cursor:pointer;font-size:13px;font-weight:600;white-space:nowrap;}
.mode-toggle button.active{background:linear-gradient(135deg,var(--accent),#8b7cf6);color:#fff;}
.pattern-toggle{display:flex;background:#0e1424;border:1px solid var(--border);border-radius:9px;overflow:hidden;}
.pattern-toggle button{padding:9px 14px;background:transparent;border:none;color:var(--muted);cursor:pointer;font-size:12.5px;font-weight:600;}
.pattern-toggle button.active{background:var(--accent2);color:#04241d;}
.spacer{flex:1;}
.dev-chip{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);padding:6px 10px;border:1px solid var(--border);border-radius:20px;}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block;}

/* ---- KPI ---- */
.kpi-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:20px;}
.kpi-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;}
.kpi-card .lbl{font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;}
.kpi-card .val{font-size:26px;font-weight:700;margin-top:6px;}
.kpi-card .unit{font-size:12px;color:var(--muted);font-weight:400;margin-left:4px;}

/* ---- Cards / charts ---- */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:20px;}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;flex-wrap:wrap;gap:8px;}
.card-head h3{margin:0;font-size:14.5px;}
.chart-wrap{position:relative;height:340px;}
.chart-wrap.small{height:210px;}
.grid-9{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:16px;}
.mini-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px;}
.mini-card h4{margin:0 0 8px;font-size:13px;color:var(--text);display:flex;justify-content:space-between;}
.mini-card .mm{font-size:11px;color:var(--muted);font-weight:400;}
.section-title{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin:28px 0 12px;}
footer.foot{text-align:center;color:var(--muted);font-size:11.5px;padding:24px 10px 40px;}

#errorBanner{display:none;background:linear-gradient(135deg,#3a1f2e,#2a1522);border:1px solid var(--danger);color:#ffd7de;padding:16px 20px;border-radius:var(--radius);margin-bottom:20px;font-size:13.5px;line-height:1.6;}
#loadingOverlay{display:none;position:fixed;inset:0;z-index:100;background:rgba(10,13,22,.72);backdrop-filter:blur(2px);align-items:center;justify-content:center;flex-direction:column;gap:14px;}
.spinner{width:44px;height:44px;border-radius:50%;border:4px solid rgba(255,255,255,.15);border-top-color:var(--accent2);animation:spin .8s linear infinite;}
#loadingOverlay .loading-text{color:var(--text);font-size:13.5px;letter-spacing:.3px;}
@keyframes spin{to{transform:rotate(360deg);}}

@media(max-width:640px){ main{padding:16px;} header.topbar{padding:14px 16px;} .chart-wrap{height:260px;} }