:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e3e6ea;
  --text: #1d2330;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --warning: #d97706;
  --success: #16a34a;
  --radius: 8px;
  --sidebar: #111827;
  --sidebar-text: #cbd5e1;
}

* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 13px; }

.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--sidebar); color: var(--sidebar-text); padding: 20px 0; flex-shrink: 0; }
.sidebar .brand { color: #fff; font-weight: 700; font-size: 16px; padding: 0 20px 20px; }
.sidebar a { display: block; color: var(--sidebar-text); padding: 8px 20px; }
.sidebar a:hover, .sidebar a.active { background: #1f2937; color: #fff; text-decoration: none; }
.sidebar .section { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: #6b7280; padding: 16px 20px 6px; }
.main { flex: 1; padding: 24px 32px; min-width: 0; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.topbar h1 { font-size: 22px; margin: 0; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; }
.card h2 { font-size: 15px; margin: 0 0 12px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.stat small { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; }
.stat strong { font-size: 24px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; background: #eef0f3; color: #374151; }
.badge.green { background: #dcfce7; color: #166534; }
.badge.red { background: #fee2e2; color: #991b1b; }
.badge.yellow { background: #fef3c7; color: #92400e; }
.badge.blue { background: #dbeafe; color: #1e40af; }

.btn { display: inline-block; border: 1px solid var(--border); background: var(--surface); color: var(--text); padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 13px; }
.btn:hover { background: #f3f4f6; text-decoration: none; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.sm { padding: 3px 8px; font-size: 12px; }
form.inline { display: inline; }

label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 7px 10px; border: 1px solid var(--border); border-radius: 6px; font: inherit; background: #fff;
}
textarea { min-height: 70px; }
.field { margin-bottom: 14px; }
.field small { color: var(--muted); display: block; margin-top: 3px; font-weight: normal; }
.form-grid { display: grid; gap: 0 16px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.checkbox { display: flex; gap: 6px; align-items: center; font-weight: normal; }
.checkbox input { width: auto; }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; border: 1px solid; }
.alert.success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }
.alert.error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.alert.warning { background: #fffbeb; border-color: #fde68a; color: #92400e; }

.bar { height: 6px; background: #eef0f3; border-radius: 3px; overflow: hidden; margin-top: 4px; min-width: 80px; }
.bar span { display: block; height: 100%; background: var(--success); }
.bar.warn span { background: var(--warning); }
.bar.bad span { background: var(--danger); }
.muted { color: var(--muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { width: 360px; }

@media (max-width: 800px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; padding: 10px 0; }
  .main { padding: 16px; }
}

/* ---------------------------------------------------------------- Müşteri paneli */
.client-top { background: var(--surface); border-bottom: 1px solid var(--border); }
.client-top .inner { max-width: 1100px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.client-top .brand { font-weight: 700; font-size: 16px; color: var(--text); }
.client-top nav { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.client-main { max-width: 1100px; margin: 0 auto; padding: 24px 20px 48px; }
.impersonate-bar { background: #7c3aed; color: #fff; padding: 8px 20px; font-size: 13px; display: flex; justify-content: center; gap: 12px; align-items: center; }
.impersonate-bar .btn { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }

.vm-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.vm-head h1 { font-size: 22px; margin: 0 0 4px; word-break: break-all; }
.vm-head .meta { color: var(--muted); font-size: 13px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.status-dot { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.status-dot::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: #9ca3af; }
.status-dot.running::before { background: var(--success); box-shadow: 0 0 0 3px #dcfce7; }
.status-dot.stopped::before { background: var(--danger); }
.status-dot.busy::before { background: var(--primary); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { .status-dot.busy::before { animation: none; } }

.btn-group { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-group form { display: inline; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin: 18px 0 20px; overflow-x: auto; }
.tabs a { padding: 9px 14px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; font-weight: 500; }
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.active { color: var(--primary); border-bottom-color: var(--primary); }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.copy { cursor: pointer; border: 1px solid var(--border); background: #f9fafb; border-radius: 4px; font-size: 11px; padding: 1px 6px; margin-left: 6px; color: var(--muted); }
.copy:hover { color: var(--text); }

.chart-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.chart-head h2 { margin: 0; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.seg button { border: 0; background: var(--surface); padding: 4px 10px; font-size: 12px; cursor: pointer; color: var(--muted); }
.seg button.on { background: var(--primary); color: #fff; }
.charts { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 700px) { .charts { grid-template-columns: 1fr; } }
.chart { border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; }
.chart small { color: var(--muted); display: flex; justify-content: space-between; }
.chart svg { width: 100%; height: 110px; display: block; margin-top: 6px; }
.legend-in { color: var(--primary); } .legend-out { color: #ea580c; }

.progress { height: 8px; background: #eef0f3; border-radius: 4px; overflow: hidden; margin: 10px 0; }
.progress span { display: block; height: 100%; background: var(--primary); transition: width .4s; }

.vm-list { display: grid; gap: 12px; }
.vm-item { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.vm-item:hover { border-color: #c7d2fe; text-decoration: none; }
.empty { text-align: center; padding: 40px 20px; color: var(--muted); }
details summary { cursor: pointer; font-weight: 600; }
details[open] summary { margin-bottom: 12px; }

@media (max-width: 600px) {
  .client-top .brand { white-space: nowrap; }
  .client-top .muted { display: none; }
  .client-top nav { gap: 10px; }
  .client-main { padding: 16px 14px 40px; }
  .client-main .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .client-main .grid .card { margin-bottom: 0; padding: 12px; }
  .stat strong { font-size: 19px; }
  .vm-head h1 { font-size: 19px; }
}
.tabs { scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }