* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: 'Segoe UI', Arial, sans-serif; background: #f1f5f9; color: #0f172a; font-size: 14px; }
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }

html, body { height: 100%; overflow: hidden; }
.app-shell { display: flex; height: 100vh; overflow: hidden; }
.sidebar { width: 220px; background: #0f172a; color: #e2e8f0; padding: 20px 0; flex-shrink: 0; height: 100vh; overflow-y: auto; position: sticky; top: 0; }
.brand { padding: 0 20px 20px; border-bottom: 1px solid #1e293b; margin-bottom: 12px; }
.brand-title { font-size: 18px; font-weight: 700; color: #fff; }
.brand-sub { font-size: 11px; color: #94a3b8; margin-top: 2px; letter-spacing: 1px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 10px 20px; color: #cbd5e1; font-weight: 500; }
.nav-item:hover { background: #1e293b; color: #fff; text-decoration: none; }
.nav-item.active { background: #1e293b; color: #fff; border-left: 3px solid #2563eb; padding-left: 17px; }
.nav-item .ico { font-size: 16px; }

.content { flex: 1; padding: 24px 32px; overflow-y: auto; height: 100vh; }
.page-title { margin: 0 0 20px; font-size: 22px; font-weight: 700; }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.stats { display: flex; gap: 12px; }
.stat { background: #fff; border-radius: 8px; padding: 10px 16px; display: flex; flex-direction: column; box-shadow: 0 1px 2px rgba(0,0,0,.05); min-width: 90px; }
.stat-lbl { font-size: 11px; color: #64748b; letter-spacing: 1px; text-transform: uppercase; }
.stat-val { font-size: 18px; font-weight: 700; }
.stat.up .stat-val { color: #16a34a; }
.stat.down .stat-val { color: #dc2626; }
.stat.unstable .stat-val { color: #d97706; }

.actions { display: flex; gap: 8px; align-items: center; }
.search { padding: 8px 12px; border: 1px solid #cbd5e1; border-radius: 6px; width: 220px; }
.btn { padding: 8px 14px; border: 1px solid #cbd5e1; background: #fff; border-radius: 6px; cursor: pointer; font-size: 13px; }
.btn:hover { background: #f8fafc; }
.btn-primary { background: #2563eb; color: #fff; border-color: #2563eb; }
.btn-primary:hover { background: #1d4ed8; }
.btn-danger { background: #dc2626; color: #fff; border-color: #dc2626; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 8px; }
.group-header { grid-column: 1 / -1; font-size: 11px; font-weight: 700; letter-spacing: 2px; color: #94a3b8; background: #0f172a; padding: 4px 12px; border-radius: 4px; margin-top: 4px; }
.card { border-radius: 8px; padding: 10px 12px; box-shadow: 0 1px 3px rgba(0,0,0,.08); color: #fff; }
.card.up { background: #16a34a; }
.card.down { background: #dc2626; }
.card.unstable { background: #eab308; color: #422006; }
.card.unknown { background: #64748b; }
.card.paused { background: #94a3b8; opacity: .8; }
.card-hdr { display: flex; justify-content: space-between; align-items: flex-start; gap: 6px; margin-bottom: 6px; }
.card-name { font-weight: 700; font-size: 13px; line-height: 1.2; }
.card-url { font-size: 10px; opacity: .85; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 170px; }
.card-url a { color: inherit; text-decoration: underline; }
.badges { display: flex; flex-direction: column; gap: 3px; align-items: flex-end; flex-shrink: 0; }
.badge { font-size: 9px; font-weight: 700; padding: 2px 6px; border-radius: 10px; letter-spacing: .5px; }
.badge.proto { background: rgba(255,255,255,.25); color: #fff; }
.card.unstable .badge.proto { background: rgba(0,0,0,.15); color: #422006; }
.badge.status { background: rgba(255,255,255,.28); color: #fff; }
.card.unstable .badge.status { background: rgba(0,0,0,.18); color: #422006; }
.card-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px 8px; margin-bottom: 6px; font-size: 11px; }
.card-metrics > div { display: flex; justify-content: space-between; }
.card-metrics > div > span { opacity: .8; }
.card-error { background: rgba(0,0,0,.2); color: #fff; font-size: 10px; padding: 4px 6px; border-radius: 3px; margin-bottom: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card.unstable .card-error { color: #422006; }
.card-actions { display: flex; gap: 4px; }
.card-actions .btn { background: rgba(255,255,255,.2); color: #fff; border-color: rgba(255,255,255,.3); padding: 3px 7px; font-size: 11px; }
.card-actions .btn:hover { background: rgba(255,255,255,.3); }
.card.unstable .card-actions .btn { background: rgba(0,0,0,.15); color: #422006; border-color: rgba(0,0,0,.2); }

.empty { background: #fff; border-radius: 10px; padding: 40px; text-align: center; color: #64748b; }

/* Panels */
.panel { background: #fff; padding: 20px 24px; border-radius: 10px; margin-bottom: 16px; box-shadow: 0 1px 2px rgba(0,0,0,.05); }
.panel h2 { margin: 0 0 16px; font-size: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 12px; }
label { display: block; font-size: 12px; color: #475569; font-weight: 600; margin-bottom: 4px; }
label.row { display: flex; align-items: center; gap: 8px; font-weight: 500; margin: 8px 0; }
input[type="text"], input[type="number"], input[type="password"], input[type="email"], input[type="tel"], input[type="url"], input:not([type]), select { width: 100%; padding: 7px 10px; border: 1px solid #cbd5e1; border-radius: 5px; font-size: 13px; font-family: inherit; box-sizing: border-box; }
input:disabled { background: #f1f5f9; color: #94a3b8; }
fieldset { border: 1px solid #e2e8f0; border-radius: 8px; padding: 12px 16px; margin: 12px 0; }
fieldset > legend { padding: 0 6px; font-size: 12px; font-weight: 700; color: #475569; text-transform: uppercase; letter-spacing: 1px; }
.hint { font-size: 12px; color: #64748b; margin: 4px 0 0; }
.ok { color: #16a34a; font-weight: 600; margin-left: 8px; }
.err { color: #dc2626; background: #fef2f2; padding: 8px 12px; border-radius: 5px; margin-top: 10px; }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15,23,42,.5); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.modal { background: #fff; border-radius: 10px; width: 640px; max-width: 92vw; max-height: 90vh; display: flex; flex-direction: column; }
.modal-hdr { padding: 16px 24px; border-bottom: 1px solid #e2e8f0; font-size: 16px; font-weight: 700; }
.modal-body { padding: 16px 24px; overflow-y: auto; flex: 1; }
.modal-ftr { padding: 12px 24px; border-top: 1px solid #e2e8f0; display: flex; justify-content: flex-end; gap: 8px; }

/* Logs */
table.logs { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; }
table.logs th { text-align: left; background: #f8fafc; padding: 10px 12px; font-size: 12px; font-weight: 700; color: #475569; border-bottom: 1px solid #e2e8f0; }
table.logs td { padding: 8px 12px; border-bottom: 1px solid #f1f5f9; font-size: 12px; }
table.logs td.down b { color: #b91c1c; }
table.logs td.up b { color: #166534; }

/* Toasts */
.toast-stack { position: fixed; bottom: 16px; right: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 2000; max-width: 340px; }
.toast { border-radius: 8px; padding: 10px 12px; color: #fff; box-shadow: 0 8px 24px rgba(0,0,0,.25); animation: slideIn .25s ease-out; }
.toast.down { background: #dc2626; }
.toast.up { background: #16a34a; }
.toast.unstable { background: #eab308; color: #422006; }
.toast.latency { background: #f97316; }
.toast-hdr { display: flex; justify-content: space-between; align-items: center; font-weight: 700; font-size: 12px; margin-bottom: 4px; }
.toast-close { background: transparent; border: 0; color: inherit; font-size: 18px; line-height: 1; cursor: pointer; padding: 0 4px; }
.toast-body { font-size: 12px; }
.toast-foot { font-size: 10px; opacity: .85; margin-top: 4px; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: none; opacity: 1; } }

/* Reports */
.report-grid { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.05); }
.report-grid th { text-align: left; background: #0f172a; color: #fff; padding: 10px 12px; font-size: 12px; font-weight: 600; }
.report-grid td { padding: 8px 12px; border-bottom: 1px solid #f1f5f9; font-size: 13px; }
.report-grid tr:last-child td { border-bottom: none; }
.report-grid td.right { text-align: right; font-variant-numeric: tabular-nums; }
.uptime-good { color: #16a34a; font-weight: 700; }
.uptime-bad { color: #dc2626; font-weight: 700; }
.uptime-warn { color: #d97706; font-weight: 700; }

/* Report tabs */
.report-tabs { display: flex; gap: 4px; border-bottom: 2px solid #e2e8f0; }
.report-tabs .tab { background: transparent; border: none; padding: 10px 18px; font-size: 13px; font-weight: 600; color: #64748b; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; }
.report-tabs .tab:hover { color: #0f172a; background: #f1f5f9; border-radius: 6px 6px 0 0; }
.report-tabs .tab.active { color: #2563eb; border-bottom-color: #2563eb; }
.report-grid td.clip { max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.report-grid td.empty-row { text-align: center; padding: 24px; color: #64748b; }

/* User box in sidebar */
.sidebar { display: flex; flex-direction: column; }
.sidebar > nav { flex: 1; }
.user-box { padding: 12px 16px; border-top: 1px solid #1e293b; margin-top: 12px; }
.user-email { color: #fff; font-size: 12px; font-weight: 600; word-break: break-all; }
.user-role { color: #94a3b8; font-size: 11px; margin-top: 2px; }
.user-box .btn { background: #1e293b; color: #cbd5e1; border-color: #334155; }
.user-box .btn:hover { background: #334155; color: #fff; }

/* Login page */
.login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #0f172a, #1e3a8a); padding: 20px; }
.login-box { background: #fff; border-radius: 12px; padding: 32px; width: 380px; max-width: 92vw; box-shadow: 0 12px 40px rgba(0,0,0,.35); }
.login-title { font-size: 22px; font-weight: 800; color: #0f172a; }
.login-sub { font-size: 13px; color: #64748b; margin: 4px 0 20px; }
.login-box label { margin-top: 12px; font-size: 13px; font-weight: 600; color: #334155; }
.login-box input { margin-bottom: 4px; padding: 10px 12px !important; font-size: 14px !important; height: auto; }
.login-box button { padding: 11px 14px !important; font-size: 14px !important; font-weight: 600; }
.login-foot { text-align: center; font-size: 11px; color: #94a3b8; margin-top: 18px; }