:root {
	--bg: #071018;
	--bg-2: #0b1822;
	--panel: #10222e;
	--line: #1d3a48;
	--accent: #2ee6c7;
	--accent-dim: #1a6f64;
	--warn: #f5c14a;
	--danger: #ff5d6c;
	--ok: #3ddc97;
	--idle: #6b8492;
	--text: #e7f1f6;
	--muted: #8aa3b0;
	--shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
	font-family: "Segoe UI", Ubuntu, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.shell {
	display: grid;
	grid-template-columns: 260px 1fr;
	min-height: 100vh;
}

.nav {
	background: var(--bg-2);
	border-right: 1px solid var(--line);
	padding: 1.5rem 1rem;
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
}

.brand { display: flex; gap: 0.75rem; align-items: center; }
.brand strong { display: block; letter-spacing: 0.12em; font-size: 0.95rem; }
.brand span { display: block; color: var(--muted); font-size: 0.75rem; }
.mark {
	width: 36px; height: 36px; border-radius: 8px;
	background: linear-gradient(145deg, var(--accent), #148f9a);
	position: relative;
}
.mark::after {
	content: "";
	position: absolute; inset: 9px 7px 9px 16px;
	border: 2px solid #071018; border-left: 0; border-radius: 0 6px 6px 0;
}

.nav nav { display: flex; flex-direction: column; gap: 0.25rem; }
.nav nav a {
	color: var(--muted);
	padding: 0.7rem 0.85rem;
	border-radius: 8px;
	text-decoration: none;
}
.nav nav a:hover, .nav nav a.active {
	background: var(--panel);
	color: var(--text);
	text-decoration: none;
}
.nav nav a.active { box-shadow: inset 3px 0 0 var(--accent); }

.nav-foot { margin-top: auto; color: var(--muted); font-size: 0.8rem; }

main { padding: 1.25rem 1.75rem 2.5rem; }
.top {
	display: flex; align-items: center; gap: 1rem;
	margin-bottom: 1.25rem;
}
.top h1 { font-size: 1.35rem; font-weight: 650; margin: 0; flex: 1; }
.menu-btn {
	display: none; background: var(--panel); color: var(--text);
	border: 1px solid var(--line); border-radius: 8px; padding: 0.4rem 0.7rem;
}
.top-status {
	font-size: 0.8rem; padding: 0.35rem 0.7rem; border-radius: 999px;
	background: var(--panel); border: 1px solid var(--line); color: var(--muted);
}
.top-status.ok { color: var(--ok); border-color: var(--accent-dim); }
.top-status.bad { color: var(--danger); }

.section { display: none; }
.section.visible { display: block; }

.kpis {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 0.85rem;
	margin-bottom: 1rem;
}
.kpi {
	background: var(--panel);
	border: 1px solid var(--line);
	border-radius: 12px;
	padding: 1rem 1.1rem;
	box-shadow: var(--shadow);
}
.kpi b { display: block; font-size: 1.7rem; line-height: 1.1; }
.kpi span { color: var(--muted); font-size: 0.82rem; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.card {
	background: var(--panel);
	border: 1px solid var(--line);
	border-radius: 12px;
	padding: 1.15rem 1.25rem;
	box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.lead { color: var(--muted); margin: 0 0 1rem; font-size: 0.92rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.btn {
	display: inline-block;
	padding: 0.65rem 0.9rem;
	border-radius: 8px;
	border: 1px solid var(--line);
	background: var(--bg-2);
	color: var(--text);
	text-decoration: none;
	font-size: 0.9rem;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary { background: var(--accent); color: #06221e; font-weight: 650; border-color: transparent; }

.todo { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.todo li { margin: 0.4rem 0; }
.todo .done { color: var(--ok); }

.sys-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
	gap: 0.75rem;
}
.sys {
	display: block;
	padding: 0.95rem 1rem;
	border-radius: 10px;
	border: 1px solid var(--line);
	background: var(--bg-2);
	color: inherit;
	text-decoration: none;
}
.sys:hover { border-color: var(--accent); text-decoration: none; }
.sys .dot {
	width: 9px; height: 9px; border-radius: 50%; display: inline-block;
	margin-right: 0.45rem; background: var(--idle);
}
.sys.up .dot { background: var(--ok); }
.sys.down .dot { background: var(--danger); }
.sys small { display: block; color: var(--muted); margin-top: 0.3rem; }

.map-wrap {
	background: #07141c;
	border: 1px solid var(--line);
	border-radius: 10px;
	padding: 0.5rem;
	overflow: auto;
}
.map-wrap svg { width: 100%; height: auto; display: block; }
.node-ok { fill: #12362f; stroke: var(--ok); }
.node-down { fill: #3a151b; stroke: var(--danger); }
.node-empty { fill: #10202a; stroke: #3d5562; stroke-dasharray: 5 4; }
.node-label { fill: var(--text); font-size: 13px; font-family: inherit; }
.node-sub { fill: var(--muted); font-size: 11px; font-family: inherit; }
.edge { stroke: #2a4b58; stroke-width: 2; fill: none; }

.note { color: var(--muted); font-size: 0.85rem; margin: 0.85rem 0 0; }
.tg-state { padding: 0.75rem 0.9rem; border-radius: 8px; background: var(--bg-2); border: 1px solid var(--line); }
.tg-state.ok { border-color: var(--accent-dim); color: var(--ok); }
.problems { list-style: none; margin: 0; padding: 0; }
.problems li {
	padding: 0.55rem 0;
	border-bottom: 1px solid var(--line);
	font-size: 0.9rem;
}
.problems li:last-child { border-bottom: 0; }
.sev-3, .sev-4, .sev-5 { color: var(--danger); }
.sev-2 { color: var(--warn); }

@media (max-width: 980px) {
	.shell { grid-template-columns: 1fr; }
	.nav {
		position: fixed; inset: 0 auto 0 0; width: 260px; z-index: 20;
		transform: translateX(-105%); transition: transform 0.2s ease;
	}
	.nav.open { transform: none; }
	.menu-btn { display: inline-block; }
	.kpis, .grid-2 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
	.kpis, .grid-2 { grid-template-columns: 1fr; }
	main { padding: 1rem; }
}