:root {
	--bg: #0f172a;
	--bg-dark: #020617;
	--panel: #111827;
	--panel-soft: #1f2937;
	--border: #374151;
	--text: #e5e7eb;
	--muted: #9ca3af;
	--good: #22c55e;
	--bad: #ef4444;
	--warn: #f59e0b;
	--info: #38bdf8;
	--purple: #a78bfa;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	background: var(--bg);
	color: var(--text);
}

header {
	background: var(--bg-dark);
	border-bottom: 1px solid var(--border);
	padding: 1rem 1.5rem;
}

header h1 {
	margin: 0;
	font-size: 1.45rem;
}

header p {
	margin: 0.35rem 0 0;
	color: var(--muted);
}

main {
	display: grid;
	grid-template-columns: 430px 1fr;
	gap: 1rem;
	padding: 1rem;
}

.panel {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 14px;
	padding: 1rem;
}

h2, h3 {
	margin: 0 0 0.75rem;
}

textarea {
	width: 100%;
	min-height: 300px;
	background: var(--bg-dark);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 10px;
	padding: 0.75rem;
	font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
	font-size: 0.85rem;
	resize: vertical;
}

button,
input,
select {
	background: var(--panel-soft);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 8px;
	padding: 0.55rem 0.7rem;
}

button {
	cursor: pointer;
	font-weight: 700;
}

button:hover {
	border-color: var(--info);
}

.button-info {
	border-color: rgba(56, 189, 248, 0.7);
}

.button-good {
	border-color: rgba(34, 197, 94, 0.7);
}

.button-warn {
	border-color: rgba(245, 158, 11, 0.7);
}

.file-label {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	background: var(--panel-soft);
	color: var(--text);
	border: 1px solid rgba(34, 197, 94, 0.7);
	border-radius: 8px;
	padding: 0.55rem 0.7rem;
	cursor: pointer;
	font-weight: 700;
}

.file-label input {
	display: none;
}

input {
	min-width: 0;
}

.controls {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin: 0.75rem 0;
}

.help-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	margin-bottom: 0.5rem;
}

.section-title-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	margin-bottom: 0.5rem;
}

.section-title-row h2 {
	margin: 0;
}

.section-actions {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.help-btn {
	width: 1.8rem;
	height: 1.8rem;
	padding: 0;
	border-radius: 999px;
}

.collapse-btn {
	min-width: 5.25rem;
}

.help-box {
	margin: 0.75rem 0;
	padding: 0.75rem;
	background: var(--bg-dark);
	border: 1px solid var(--border);
	border-radius: 10px;
	color: var(--muted);
	font-size: 0.9rem;
}

.hidden {
	display: none;
}

code,
pre {
	background: #111827;
	color: var(--text);
	border-radius: 6px;
}

code {
	padding: 0.15rem 0.35rem;
}

pre {
	padding: 0.75rem;
	overflow-x: auto;
}

.small {
	color: var(--muted);
	font-size: 0.85rem;
}

.summary-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
	gap: 0.75rem;
	margin-bottom: 1rem;
}

.summary-card {
	background: var(--bg-dark);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 0.75rem;
}

.summary-card strong {
	font-size: 1.35rem;
	display: block;
}

.zone-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
	gap: 1rem;
}

.zone-card {
	background: var(--bg-dark);
	border: 1px solid var(--border);
	border-radius: 14px;
	padding: 1rem;
}

.zone-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 0.5rem;
}

.badge {
	font-size: 0.72rem;
	color: var(--muted);
	background: var(--panel-soft);
	border: 1px solid var(--border);
	padding: 0.2rem 0.45rem;
	border-radius: 999px;
}

.device {
	margin: 0.4rem 0;
	padding: 0.55rem;
	border-radius: 10px;
	background: var(--panel-soft);
	border: 1px solid transparent;
}

.device strong {
	display: block;
}

.device.iot-risk {
	border-color: var(--warn);
}

.matrix {
	width: 100%;
	border-collapse: collapse;
	margin-top: 0.75rem;
	font-size: 0.85rem;
}

.matrix th,
.matrix td {
	border: 1px solid var(--border);
	padding: 0.5rem;
	text-align: center;
}

.allow {
	color: var(--good);
	font-weight: 800;
}

.deny {
	color: var(--bad);
	font-weight: 800;
}

.warn {
	color: var(--warn);
	font-weight: 800;
}

.info {
	color: var(--info);
	font-weight: 800;
}

.result {
	margin-top: 0.75rem;
	padding: 0.75rem;
	border-radius: 10px;
	background: var(--bg-dark);
	border: 1px solid var(--border);
}

.relationships {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 0.75rem;
	margin-top: 0.75rem;
}

.relationship {
	background: var(--bg-dark);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 0.75rem;
}

.relationship.allowed {
	border-color: rgba(34, 197, 94, 0.55);
}

.relationship.blocked {
	border-color: rgba(239, 68, 68, 0.55);
}

.device-row {
	display: grid;
	grid-template-columns: 1.1fr 1fr 0.8fr auto;
	gap: 0.4rem;
	margin: 0.4rem 0;
}

.tool-section {
	margin-top: 1rem;
	padding-top: 1rem;
	border-top: 1px solid var(--border);
}

.tool-section h3 {
	font-size: 1rem;
}

.import-section {
	border-top-color: rgba(56, 189, 248, 0.55);
}

.import-section-top {
	margin-top: 0;
	margin-bottom: 1rem;
	padding-top: 0;
	padding-bottom: 1rem;
	border-top: 0;
	border-bottom: 1px solid rgba(56, 189, 248, 0.55);
}

.import-section.collapsed .collapsible-body {
	display: none;
}

.checklist {
	display: grid;
	gap: 0.45rem;
	margin: 0.75rem 0;
	padding: 0.75rem;
	background: var(--bg-dark);
	border: 1px solid var(--border);
	border-radius: 10px;
}

.check-item {
	display: flex;
	align-items: flex-start;
	gap: 0.5rem;
	color: var(--muted);
	font-size: 0.86rem;
}

.check-item strong {
	color: var(--text);
}

.check-mark {
	flex: 0 0 auto;
	width: 1.15rem;
	height: 1.15rem;
	border-radius: 999px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 0.75rem;
	font-weight: 800;
	border: 1px solid var(--border);
}

.check-item.done .check-mark {
	color: var(--good);
	border-color: rgba(34, 197, 94, 0.75);
}

.check-item.todo .check-mark {
	color: var(--warn);
	border-color: rgba(245, 158, 11, 0.75);
}

.compact-textarea {
	min-height: 120px;
	margin-top: 0.5rem;
}

.import-result {
	min-height: 2.5rem;
}

.relationship {
	cursor: pointer;
}

.relationship:hover {
	border-color: var(--info);
}

.findings {
	display: grid;
	gap: 0.75rem;
	margin-top: 0.75rem;
}

.finding {
	background: var(--bg-dark);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 0.75rem;
}

.finding.high {
	border-color: rgba(239, 68, 68, 0.75);
}

.finding.medium {
	border-color: rgba(245, 158, 11, 0.75);
}

.finding.low {
	border-color: rgba(56, 189, 248, 0.75);
}

.export-output {
	min-height: 150px;
}

.show-more-row {
	grid-column: 1 / -1;
	margin-top: 0.75rem;
	text-align: center;
}

.compare-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 0.75rem;
	margin-top: 0.75rem;
}

.graph-panel {
	margin-top: 1.5rem;
}

.graph-panel.expanded {
	position: fixed;
	inset: 1rem;
	z-index: 20;
	margin: 0;
	padding: 1rem;
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 14px;
	overflow: auto;
}

.graph-panel.expanded #cy {
	height: calc(100vh - 190px);
}

.graph-toolbar {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 0.75rem;
}

#cy {
	width: 100%;
	height: 620px;
	background: var(--bg-dark);
	border: 1px solid var(--border);
	border-radius: 14px;
}

.legend {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin: 0.75rem 0;
	color: var(--muted);
	font-size: 0.85rem;
}

.legend-item {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
}

.legend-dot {
	width: 0.8rem;
	height: 0.8rem;
	border-radius: 999px;
	display: inline-block;
}

.legend-line {
	width: 1.5rem;
	height: 0.2rem;
	border-radius: 999px;
	display: inline-block;
}

.site-footer {
	background: var(--bg-dark);
	border-top: 1px solid var(--border);
	color: var(--muted);
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	justify-content: center;
	padding: 1rem 1.5rem;
	font-size: 0.9rem;
}

.site-footer a {
	color: var(--info);
	text-decoration: none;
}

.site-footer a:hover {
	text-decoration: underline;
}

@media (max-width: 1150px) {
	main {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 720px) {
	.device-row {
		grid-template-columns: 1fr;
	}

	#cy {
		height: 520px;
	}
}