:root {
  --bg:        #0f0f0f;
  --surface:   #161616;
  --surface-2: #1e1e1e;
  --border:    rgba(255,255,255,0.08);
  --text:      #e8e8e8;
  --muted:     #888;
  --faint:     #444;
  --accent:    #4f98a3;
  --accent-h:  #3a7f8a;
  --success:   #6daa45;
  --error:     #d16374;
  --radius:    8px;
  --radius-lg: 12px;
  --font: 'Inter', system-ui, sans-serif;
  --trans: 150ms ease;
}
[data-theme="light"] {
  --bg:        #f5f4f1;
  --surface:   #fafaf8;
  --surface-2: #ffffff;
  --border:    rgba(0,0,0,0.1);
  --text:      #1a1a1a;
  --muted:     #666;
  --faint:     #bbb;
  --accent:    #01696f;
  --accent-h:  #0c4e54;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:15px;-webkit-font-smoothing:antialiased}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  min-height:100dvh;
}
#app-shell{
  display:grid;
  grid-template-columns:220px 1fr;
  min-height:100dvh;
}
a{color:inherit;text-decoration:none}
button{cursor:pointer;font:inherit;border:none;background:none;color:inherit}

/* Sidebar */
.sidebar{
  background:var(--surface);
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  padding:20px 12px;
  gap:4px;
  position:sticky;
  top:0;
  height:100dvh;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  padding:4px 8px 16px;
  font-weight:600;
  font-size:1rem;
  border-bottom:1px solid var(--border);
  margin-bottom:8px;
  color:var(--text);
}
.nav-links{display:flex;flex-direction:column;gap:2px;flex:1}
.nav-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 10px;
  border-radius:var(--radius);
  color:var(--muted);
  font-size:0.9rem;
  transition:background var(--trans),color var(--trans);
}
.nav-item:hover{background:var(--surface-2);color:var(--text)}
.nav-item.active{background:rgba(79,152,163,0.12);color:var(--accent)}
.theme-toggle{
  padding:8px 10px;
  border-radius:var(--radius);
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:8px;
  font-size:0.85rem;
  transition:background var(--trans),color var(--trans);
}
.theme-toggle:hover{background:var(--surface-2);color:var(--text)}

/* Main */
.main{padding:32px;overflow-y:auto}
.view-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:24px;
}
.view-header h1{font-size:1.4rem;font-weight:600}
.hidden{display:none!important}

/* Buttons */
.btn{
  padding:8px 16px;
  border-radius:var(--radius);
  font-size:0.875rem;
  font-weight:500;
  transition:background var(--trans),opacity var(--trans);
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-h)}
.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--surface-2);color:var(--text)}
.btn-danger{background:transparent;color:var(--error);border:1px solid var(--error)}
.btn-danger:hover{background:rgba(209,99,116,0.1)}
.btn-sm{padding:4px 10px;font-size:0.8rem}

/* KPI row */
.kpi-row{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(180px,1fr));
  gap:12px;
  margin-bottom:24px;
}
.kpi-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:16px 20px;
}
.kpi-label{font-size:0.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
.kpi-value{font-size:1.5rem;font-weight:700;font-variant-numeric:tabular-nums}

/* Charts grid */
.charts-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.chart-wide{grid-column:1/-1}
.chart-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:20px;
}
.chart-title{
  font-size:0.85rem;
  font-weight:600;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.04em;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.chart-wrap{height:240px;position:relative}

/* Table */
.table-wrap{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
table{width:100%;border-collapse:collapse}
th{
  text-align:left;
  padding:10px 16px;
  font-size:0.75rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.05em;
  color:var(--muted);
  background:var(--surface);
  border-bottom:1px solid var(--border);
}
td{
  padding:12px 16px;
  font-size:0.875rem;
  border-bottom:1px solid var(--border);
  vertical-align:middle;
}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--surface-2)}
.actions{display:flex;gap:6px}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:20px;
  cursor:pointer;
  transition:border-color var(--trans),box-shadow var(--trans);
}
.card:hover{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.card-id{font-size:0.75rem;color:var(--muted);margin-bottom:8px}
.card-status{display:inline-flex;align-items:center;gap:6px;font-size:0.8rem;font-weight:600;margin-bottom:12px}
.dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.dot-ok{background:var(--success)}
.dot-running{background:var(--accent);animation:pulse 1s ease-in-out infinite}
.dot-error{background:var(--error)}
.dot-pending{background:var(--muted)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.card-meta{font-size:0.8rem;color:var(--muted)}
.card-meta span{display:block;margin-bottom:4px}

/* Matrix */
.matrix-wrap{overflow-x:auto;margin-top:24px}
.matrix-wrap h2{font-size:1rem;font-weight:600;margin-bottom:12px}
table.matrix th,table.matrix td{padding:8px 10px;font-size:.78rem;min-width:80px;text-align:center}
table.matrix th.row-header{text-align:left;color:var(--muted)}
.cell-val{border-radius:4px;padding:4px 6px;font-weight:500;font-variant-numeric:tabular-nums}

/* Badges */
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:0.75rem;font-weight:600}
.badge-ok{background:rgba(109,170,69,.15);color:var(--success)}
.badge-error{background:rgba(209,99,116,.15);color:var(--error)}
.badge-running{background:rgba(79,152,163,.15);color:var(--accent)}
.badge-pending{background:rgba(136,136,136,.12);color:var(--muted)}

/* Modal */
.modal-backdrop{
  position:fixed;inset:0;
  background:rgba(0,0,0,.6);
  backdrop-filter:blur(2px);
  display:flex;align-items:center;justify-content:center;z-index:100;
}
.modal{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  width:480px;max-width:95vw;max-height:90dvh;
  display:flex;flex-direction:column;
}
.modal-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px 16px;
  border-bottom:1px solid var(--border);
}
.modal-header h2{font-size:1rem;font-weight:600}
.modal-close{font-size:1.3rem;color:var(--muted);padding:0 4px}
.modal-close:hover{color:var(--text)}
.modal-body{padding:20px 24px;overflow-y:auto;flex:1}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

/* Form */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:.8rem;font-weight:500;color:var(--muted);margin-bottom:5px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--radius);padding:9px 12px;
  font:inherit;font-size:.875rem;color:var(--text);outline:none;
  transition:border-color var(--trans);
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--accent)}
.form-row textarea{resize:vertical;min-height:80px}
.form-hint{font-size:.75rem;color:var(--muted);margin-top:4px}

/* Toast */
.toast{
  position:fixed;bottom:24px;right:24px;
  background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--radius);padding:12px 18px;font-size:.875rem;
  z-index:200;box-shadow:0 8px 24px rgba(0,0,0,.4);
}
.toast.toast-error{border-color:var(--error);color:var(--error)}
.toast.toast-ok{border-color:var(--success);color:var(--success)}

/* Skeleton */
.skeleton-block{
  height:120px;
  background:linear-gradient(90deg,var(--surface) 25%,var(--surface-2) 50%,var(--surface) 75%);
  background-size:200% 100%;animation:shimmer 1.4s ease-in-out infinite;
  border-radius:var(--radius-lg);
}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

.empty-state{text-align:center;padding:48px 24px;color:var(--muted);font-size:.875rem}

.back-btn{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--muted);font-size:.875rem;margin-bottom:20px;padding:4px 0;
}
.back-btn:hover{color:var(--text)}

/* Responsive */
@media(max-width:900px){
  .charts-grid{grid-template-columns:1fr}
  .chart-wide{grid-column:auto}
}
@media(max-width:680px){
  #app-shell{grid-template-columns:1fr}
  .sidebar{height:auto;position:static;flex-direction:row;padding:12px;flex-wrap:wrap;gap:4px}
  .logo{border-bottom:none;margin-bottom:0;padding-bottom:0}
  .nav-links{flex-direction:row}
  .sidebar-user{order:99;width:100%}
  .main{padding:16px}
  .kpi-row{grid-template-columns:1fr 1fr}
}

/* Sidebar user / logout */
.sidebar-user{
  display:flex;flex-direction:column;gap:6px;
  padding:10px 8px;border-top:1px solid var(--border);
  margin-top:8px;font-size:.8rem;
}
.sidebar-user .who{display:flex;flex-direction:column;line-height:1.3}
.sidebar-user .who-label{color:var(--muted);font-size:.7rem;text-transform:uppercase;letter-spacing:.05em}
.sidebar-user .who-name{color:var(--text);font-weight:600}
.sidebar-controls{display:flex;gap:6px;align-items:center;padding:8px 4px 0;border-top:1px solid var(--border)}
.lang-toggle{
  padding:6px 10px;border-radius:var(--radius);
  font-size:.75rem;font-weight:600;letter-spacing:.05em;
  background:var(--surface-2);color:var(--muted);
  border:1px solid var(--border);
  transition:background var(--trans),color var(--trans);
}
.lang-toggle:hover{background:var(--accent);color:#fff;border-color:var(--accent)}

/* Auth (login / bootstrap) screen */
.auth-screen{
  position:fixed;inset:0;z-index:300;
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  padding:24px;
}
.auth-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px;
  width:100%;max-width:400px;
  box-shadow:0 20px 50px rgba(0,0,0,.4);
}
.auth-logo{
  display:flex;align-items:center;gap:12px;
  margin-bottom:24px;color:var(--text);
}
.auth-logo h1{font-size:1.2rem;font-weight:600;letter-spacing:.02em}
.auth-form h2{font-size:1rem;font-weight:600;margin-bottom:8px}
.auth-hint{color:var(--muted);font-size:.85rem;margin-bottom:18px}
.auth-form label{
  display:block;font-size:.75rem;color:var(--muted);
  margin:10px 0 5px;text-transform:uppercase;letter-spacing:.05em;
}
.auth-form input{
  width:100%;background:var(--surface-2);border:1px solid var(--border);
  border-radius:var(--radius);padding:10px 12px;font:inherit;
  font-size:.9rem;color:var(--text);outline:none;
  transition:border-color var(--trans);
}
.auth-form input:focus{border-color:var(--accent)}
.auth-submit{width:100%;margin-top:18px;padding:10px 16px}
.auth-error{
  margin-top:12px;color:var(--error);font-size:.85rem;
  background:rgba(209,99,116,.08);
  border:1px solid rgba(209,99,116,.2);
  border-radius:var(--radius);padding:8px 12px;
}
.auth-footer{
  margin-top:18px;display:flex;justify-content:flex-end;
  border-top:1px solid var(--border);padding-top:14px;
}