@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #101217;
  --surface: #181b22;
  --surface-2: #222631;
  --surface-hover: #2b3140;
  --text: #f1f5f9;
  --text-muted: #a7b0c0;
  --text-dim: #70798a;
  --border: rgba(255,255,255,.10);
  --border-soft: rgba(255,255,255,.07);
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-soft: rgba(59,130,246,.18);
  --accent-text: #fff;
  --success: #34d399;
  --success-soft: rgba(52,211,153,.16);
  --warn: #fbbf24;
  --warn-soft: rgba(251,191,36,.16);
  --danger: #f87171;
  --danger-soft: rgba(248,113,113,.16);
  --shadow-xs: 0 1px 2px rgba(0,0,0,.25);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.24);
  --shadow-md: 0 6px 16px rgba(0,0,0,.30);
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }
html, body, #root { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: var(--font-body); font-size: 14px; line-height: 1.5; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.shell { min-height: 100vh; display: flex; }
.sidebar { width: 240px; background: var(--surface); border-right: 1px solid var(--border-soft); display: flex; flex-direction: column; flex-shrink: 0; min-height: 100vh; position: sticky; top: 0; }
.sidebar-brand { display: flex; align-items: center; gap: 10px; padding: 22px 20px; border-bottom: 1px solid var(--border-soft); }
.sidebar-brand-mark { width: 32px; height: 32px; border-radius: 8px; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 700; }
.sidebar-brand-text { color: var(--text); font-weight: 600; }
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; padding: 12px; flex: 1; }
.sidebar-nav .nav-link { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: var(--radius-sm); color: var(--text-muted); font-weight: 500; }
.sidebar-nav .nav-link:hover { background: var(--surface-2); color: var(--text); }
.sidebar-nav .nav-link.active { background: var(--accent-soft); color: var(--accent-hover); font-weight: 600; }
.sidebar-footer { padding: 14px; border-top: 1px solid var(--border-soft); display: flex; flex-direction: column; gap: 10px; }
.sidebar-user { display: flex; align-items: center; gap: 10px; padding: 8px; min-width: 0; }
.sidebar-user-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--surface-2); display: grid; place-items: center; flex-shrink: 0; }
.sidebar-user-info { min-width: 0; flex: 1; }
.sidebar-user-email { color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-role, .page-sub, .field label, .instance-meta, .status-row { color: var(--text-muted); }
.btn-logout { width: 100%; background: transparent; color: var(--text-muted); border: 0; }

.main { flex: 1; min-width: 0; background: var(--bg); }
.container { max-width: 1200px; width: 100%; margin: 0 auto; padding: 40px 32px 80px; }
.page-title { margin: 0 0 6px; color: var(--text); font-size: 28px; font-weight: 600; }
.dashboard-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
.dashboard-actions { display: flex; gap: 10px; }

.card, .stat-card, .instance-card, .empty-state { background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.card { padding: 24px; }
.stat-card { display: flex; align-items: center; gap: 14px; padding: 18px 20px; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(180px,1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card-icon { width: 42px; height: 42px; border-radius: var(--radius); background: var(--surface-2); display: grid; place-items: center; }
.stat-card-label { color: var(--text-muted); font-size: 12px; text-transform: uppercase; }
.stat-card-value { color: var(--text); font-size: 24px; font-weight: 600; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); color: var(--text); cursor: pointer; font-weight: 500; box-shadow: var(--shadow-xs); transition: .15s; }
.btn:hover { background: var(--surface-hover); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger-soft); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 13px; }

.create-form { margin-bottom: 24px; }
.form-section { margin-bottom: 22px; }
.form-label { display: block; margin-bottom: 10px; color: var(--text-muted); font-size: 12px; font-weight: 600; text-transform: uppercase; }
.form-row { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 14px; }
.os-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: 10px; }
.os-card { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); text-align: left; cursor: pointer; }
.os-card.active { background: var(--accent-soft); border-color: var(--accent); }
.os-card.disabled { opacity: .4; cursor: not-allowed; }
.os-name, .instance-name, .empty-title { color: var(--text); font-weight: 600; }
.os-desc { color: var(--text-muted); font-size: 12px; }
.preset-row { display: flex; gap: 12px; flex-wrap: wrap; }
.preset-select, .field input, .field select, .field textarea { width: 100%; padding: 11px 14px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); }
.preset-select { flex: 1; min-width: 220px; }
.preset-buttons { display: flex; gap: 8px; }
.preset-btn { min-width: 60px; padding: 8px 14px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); cursor: pointer; }
.preset-btn.active { background: var(--accent); border-color: var(--accent); }
.submit-btn { width: 100%; }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.field label { font-weight: 500; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.field input:disabled, .field input[readonly] { background: var(--surface); color: var(--text-muted); cursor: not-allowed; opacity: .8; }

.type-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.type-tab { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding: 16px 18px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); text-align: left; cursor: pointer; transition: .15s; }
.type-tab:hover { background: var(--surface-hover); }
.type-tab.active { background: var(--accent-soft); border-color: var(--accent); }
.type-tab-icon { font-size: 24px; line-height: 1; }
.type-tab-label { font-size: 16px; font-weight: 600; color: var(--text); }
.type-tab-desc { font-size: 12px; color: var(--text-muted); }

.error-box { margin-bottom: 16px; padding: 12px 16px; border-radius: var(--radius); background: var(--danger-soft); color: var(--danger); }
.success-box { margin-bottom: 16px; padding: 12px 16px; border-radius: var(--radius); background: var(--success-soft); color: var(--success); }
.auth-wrap { max-width: 400px; margin: 100px auto; }
.auth-wrap .card { padding: 36px; }
.auth-wrap .btn { width: 100%; }

.instance-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(380px,1fr)); gap: 20px; }
.instance-card { padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.instance-name { font-size: 17px; }
.instance-name a { color: var(--text); }
.instance-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-dim); }
.dot.running { background: var(--success); }.dot.error { background: var(--danger); }.dot.creating { background: var(--warn); }
.badge { padding: 3px 10px; border-radius: 99px; background: var(--surface-2); color: var(--text-muted); font-size: 12px; }
.empty-state { padding: 80px 20px; color: var(--text-muted); text-align: center; }
.empty-icon { font-size: 48px; }.empty-sub { color: var(--text-muted); }

.nav-tabs { display: flex; gap: 8px; margin-bottom: 28px; }.nav-tab { padding: 10px 16px; color: var(--text-muted); cursor: pointer; border-radius: var(--radius-sm); }.nav-tab.active { background: var(--accent); color: #fff; }

table.data-table { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
table.data-table th, table.data-table td { padding: 14px 18px; text-align: left; }
table.data-table th { background: var(--surface-2); border-bottom: 1px solid var(--border); color: var(--text-muted); font-size: 12px; text-transform: uppercase; }
table.data-table td { border-bottom: 1px solid var(--border-soft); } table.data-table tr:last-child td { border-bottom: 0; } table.data-table tr:hover td { background: var(--surface-hover); }

.metric { display: inline-flex; align-items: center; gap: 8px; color: var(--text); }.metric-bar { width: 70px; height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; }
.template-results { display: grid; gap: 24px; margin-top: 18px; }.template-results h4 { color: var(--text); margin: 0 0 10px; }.template-form { margin: 24px 0 32px; }.template-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }.muted { color: var(--text-muted); }

@media (max-width: 768px) { .shell { flex-direction: column; }.sidebar { width: 100%; min-height: auto; position: relative; flex-direction: row; overflow-x: auto; }.sidebar-brand { display: none; }.sidebar-nav { flex-direction: row; }.sidebar-footer { flex-direction: row; border-top: 0; }.container { padding: 24px 20px 64px; }.form-row, .template-form-grid { grid-template-columns: 1fr; }.instance-grid { grid-template-columns: 1fr; }.page-title { font-size: 22px; } .type-tabs { grid-template-columns: 1fr; } .dashboard-actions { width: 100%; } .dashboard-actions .btn { flex: 1; } }