/* NumidiaTech Portal — Google-style Light Theme */
:root{
  --bg:#f8f9fa;--surface:#fff;--surface-2:#f1f3f4;
  --border:#dadce0;--border-strong:#bdc1c6;
  --text:#202124;--text-muted:#5f6368;--text-dim:#9aa0a6;
  --primary:#1a73e8;--primary-dark:#1765cc;--primary-soft:#e8f0fe;
  --accent:#8b5cf6;
  --ok:#137333;--ok-bg:#e6f4ea;
  --err:#c5221f;--err-bg:#fce8e6;
  --warn:#b06000;--warn-bg:#fef7e0;
  --sidebar-bg:#fff;--sidebar-border:#e8eaed;--sidebar-text:#5f6368;--sidebar-active:#1a73e8;--sidebar-active-bg:#e8f0fe;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow:0 1px 3px rgba(0,0,0,.1);--shadow-md:0 4px 6px rgba(0,0,0,.07);
  --radius:8px;--radius-lg:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{font:14px/1.55 'Google Sans',Roboto,'Segoe UI',Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
pre{background:#f1f3f4;color:#202124;padding:.85rem 1rem;border-radius:var(--radius);overflow:auto;border:1px solid var(--border)}
.muted{color:var(--text-muted)}.hint{color:var(--text-muted);margin:-.4rem 0 1rem;font-size:13px}
small,.small{font-size:.85em}
.ok{color:var(--ok)}.warn{color:var(--warn)}.bad{color:var(--err)}

/* Buttons */
button,.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:4px;font:500 14px/1 'Google Sans',Roboto,Arial,sans-serif;cursor:pointer;border:none;transition:background .15s,box-shadow .15s}
button.btn-primary,.btn-primary{background:var(--primary);color:#fff}button.btn-primary:hover,.btn-primary:hover{background:var(--primary-dark);text-decoration:none;box-shadow:0 1px 3px rgba(0,0,0,.2)}
button.btn-secondary,.btn-secondary{background:var(--surface);color:var(--primary);border:1px solid var(--border)}button.btn-secondary:hover,.btn-secondary:hover{background:var(--surface-2);text-decoration:none}
button.btn-sm,.btn-sm{padding:6px 14px;font-size:13px}
button.danger,.btn-danger{background:var(--err);color:#fff}button.danger:hover,.btn-danger:hover{background:#a50e0e}

/* Forms */
input,select,textarea{font:14px/1.5 inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:4px;padding:10px 14px;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(26,115,232,.15)}
label{display:block;font-weight:500;margin-bottom:6px;font-size:14px;color:var(--text)}

/* Guest / Login pages */
body.guest{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg)}
.guest-main,.login-shell{width:100%;max-width:1100px;padding:40px 20px;display:flex;gap:40px;align-items:center;justify-content:center}
.login-hero{max-width:400px;display:none}
.login-card{max-width:420px;width:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow)}
.login-brand,.login-card h1{text-align:center;margin-bottom:8px}
.login-card h1{font-size:24px;font-weight:400;color:var(--text)}
.login-card .sub{color:var(--text-muted);text-align:center;margin-bottom:24px;font-size:14px}
.logo{display:inline-flex;width:40px;height:40px;border-radius:var(--radius);background:var(--primary);align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:18px}
.logo.big{width:56px;height:56px;font-size:28px;border-radius:var(--radius-lg)}
.login-form{display:flex;flex-direction:column;gap:16px}
.login-form label{display:block;font-weight:500;margin-bottom:4px;font-size:14px}
.login-form input{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:4px;font-size:14px;background:var(--surface)}
.login-form input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(26,115,232,.15);outline:none}
.login-form button{margin-top:8px;width:100%;justify-content:center}
.login-hint{margin-top:16px;font-size:13px;color:var(--text-muted);text-align:center}
.login-footer{margin-top:20px;text-align:center;font-size:12px;color:var(--text-dim)}

/* App shell - sidebar layout */
body.app{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
aside.sidebar,.sidebar{background:var(--sidebar-bg);border-right:1px solid var(--sidebar-border);padding:16px 12px;display:flex;flex-direction:column;min-height:100vh}
.brand,.sidebar .brand{display:flex;align-items:center;gap:10px;padding:4px 8px 16px;border-bottom:1px solid var(--sidebar-border);margin-bottom:8px}
.brand-name{font-weight:500;color:var(--text);font-size:16px}.brand-sub{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em}
.sidebar nav{flex:1}
.nav-group{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin:16px 8px 6px;padding:0 8px}
a.nav,.nav{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius);color:var(--sidebar-text);font-size:14px}
a.nav:hover,.nav:hover{background:var(--surface-2);color:var(--text);text-decoration:none}
a.nav.active,.nav.active{background:var(--sidebar-active-bg);color:var(--sidebar-active);font-weight:500}
a.nav .ic,.nav .ic{width:18px;text-align:center;opacity:.8}
.profile,.sidebar .profile{border-top:1px solid var(--sidebar-border);padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.profile .who,.who{font-weight:500;color:var(--text)}.profile .who-sub,.who-sub{font-size:11px;color:var(--text-muted)}
.link-btn{background:none;border:none;color:var(--primary);cursor:pointer;font-size:13px;padding:0}.link-btn:hover{text-decoration:underline}

/* Main content */
main.content,.content{padding:24px 32px 48px;max-width:1200px}
header.topbar{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--border)}
.topbar h1,.content h1{font-size:22px;font-weight:400;color:var(--text);margin:0 0 8px}
.topbar-actions{display:flex;gap:8px;align-items:center}

/* Cards / Panels */
.panel,.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px 24px;margin:16px 0;box-shadow:var(--shadow-sm)}
.panel:hover{box-shadow:var(--shadow)}
.panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.panel-header h2,.panel h3{font-size:16px;font-weight:500;color:var(--text);margin:0}
.panel-body{color:var(--text-muted);font-size:14px;line-height:1.6}

/* Tables */
.table-wrap{overflow-x:auto;margin:16px 0}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}
th{color:var(--text-muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.5px;background:var(--surface-2)}
td{color:var(--text);font-size:14px}
tr:hover td{background:var(--surface-2)}

/* Status badges */
.badge,.tag{display:inline-block;padding:3px 10px;border-radius:12px;font-size:12px;font-weight:500}
.badge-ok,.tag-ok{background:var(--ok-bg);color:var(--ok)}
.badge-warn,.tag-warn{background:var(--warn-bg);color:var(--warn)}
.badge-err,.tag-err{background:var(--err-bg);color:var(--err)}
.badge-info,.tag-info{background:var(--primary-soft);color:var(--primary)}

/* Flash messages */
.flash{padding:12px 20px;border-radius:var(--radius);margin-bottom:16px;font-size:14px}
.flash-error{background:var(--err-bg);color:var(--err);border:1px solid rgba(197,34,31,.15)}
.flash-info{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(26,115,232,.15)}
.flash-success{background:var(--ok-bg);color:var(--ok);border:1px solid rgba(19,115,51,.15)}
.flash-warning{background:var(--warn-bg);color:var(--warn);border:1px solid rgba(176,96,0,.15)}

/* Grid */
.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}

/* Responsive */
@media(max-width:768px){
  body.app{grid-template-columns:1fr}
  aside.sidebar,.sidebar{display:none}
  main.content,.content{padding:16px}
  .guest-main,.login-shell{flex-direction:column;padding:20px}
  .login-hero{display:none}
  .grid-2,.grid-3{grid-template-columns:1fr}
}