/*
 * Distil — Atlas page styles.
 * Full-width page, theme-independent.
 */

*, *::before, *::after { box-sizing: border-box; }

:root {
	--dt-accent:   #1A8F8A;
	--dt-text:     #1a1a1a;
	--dt-muted:    #666;
	--dt-border:   #e0e0e0;
	--dt-surface:  #f8f8f7;
	--dt-bg:       #fff;
	--dt-radius:   8px;
	--dt-font:     system-ui, -apple-system, sans-serif;
	--sidebar-w:   240px;
	--header-h:    56px;
}

@media (prefers-color-scheme: dark) {
	:root {
		--dt-text:    #f0f0ef;
		--dt-muted:   #999;
		--dt-border:  #2e2e2e;
		--dt-surface: #1e1e1e;
		--dt-bg:      #121212;
	}
}

html, body { margin: 0; padding: 0; height: 100%; }

.dt-atlas-body {
	font-family: var(--dt-font);
	background: var(--dt-bg);
	color: var(--dt-text);
}

/* Header ------------------------------------------------------------------- */

.dt-atlas-header {
	height: var(--header-h);
	background: var(--dt-bg);
	border-bottom: 1px solid var(--dt-border);
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 20px;
	position: sticky;
	top: 0;
	z-index: 100;
}

.dt-atlas-header-inner {
	display: flex;
	align-items: baseline;
	gap: 16px;
}

.dt-atlas-title {
	font-size: 1rem;
	font-weight: 700;
	margin: 0;
	color: var(--dt-text);
}

.dt-atlas-subtitle {
	font-size: 0.78rem;
	color: var(--dt-muted);
	margin: 0;
}

.dt-atlas-nav {
	display: flex;
	gap: 16px;
}

.dt-atlas-nav a {
	font-size: 0.82rem;
	color: var(--dt-muted);
	text-decoration: none;
}

.dt-atlas-nav a:hover { color: var(--dt-accent); }

/* Layout ------------------------------------------------------------------- */

#dt-atlas-main {
	display: flex;
	height: calc(100vh - var(--header-h));
	overflow: hidden;
}

/* Sidebar ------------------------------------------------------------------ */

#dt-atlas-sidebar {
	width: var(--sidebar-w);
	flex-shrink: 0;
	border-right: 1px solid var(--dt-border);
	overflow-y: auto;
	padding: 16px;
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.dt-atlas-legend-title {
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--dt-muted);
	margin: 0 0 8px;
}

.dt-cluster-filter {
	display: flex;
	align-items: center;
	gap: 8px;
	width: 100%;
	background: transparent;
	border: 1px solid transparent;
	border-radius: var(--dt-radius);
	padding: 5px 8px;
	text-align: left;
	cursor: pointer;
	font: inherit;
	font-size: 0.82rem;
	color: var(--dt-text);
	transition: background 0.12s, border-color 0.12s;
}

.dt-cluster-filter:hover {
	background: var(--dt-surface);
	border-color: var(--dt-border);
}

.dt-cluster-filter.is-active {
	background: var(--dt-surface);
	border-color: var(--dt-accent);
}

.dt-cluster-dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	flex-shrink: 0;
	background: var(--dt-accent);
}

.dt-cluster-count {
	margin-left: auto;
	font-size: 0.72rem;
	color: var(--dt-muted);
	background: var(--dt-surface);
	border: 1px solid var(--dt-border);
	border-radius: 10px;
	padding: 1px 6px;
}

.dt-cluster-all {
	margin-top: 4px;
	border-top: 1px solid var(--dt-border);
	padding-top: 8px;
	color: var(--dt-muted);
	font-size: 0.78rem;
}

/* Tooltip ------------------------------------------------------------------ */

#dt-atlas-tooltip {
	background: var(--dt-surface);
	border: 1px solid var(--dt-border);
	border-radius: var(--dt-radius);
	padding: 14px;
	position: relative;
	animation: wfFadeIn 0.15s ease;
}

#dt-atlas-tooltip[hidden] { display: none; }

@keyframes wfFadeIn {
	from { opacity: 0; transform: translateY(4px); }
	to   { opacity: 1; transform: translateY(0); }
}

#dt-tooltip-close {
	position: absolute;
	top: 8px;
	right: 10px;
	background: transparent;
	border: none;
	cursor: pointer;
	font-size: 1.1rem;
	color: var(--dt-muted);
	padding: 0;
	line-height: 1;
}

#dt-tooltip-title {
	font-size: 0.9rem;
	font-weight: 700;
	margin: 0 20px 6px 0;
	color: var(--dt-text);
}

#dt-tooltip-meta,
#dt-tooltip-connections {
	font-size: 0.78rem;
	color: var(--dt-muted);
	margin: 0 0 6px;
	line-height: 1.5;
}

#dt-tooltip-actions {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
	margin-top: 8px;
}

#dt-tooltip-actions a {
	font-size: 0.75rem;
	padding: 3px 10px;
	border: 1px solid var(--dt-border);
	border-radius: 4px;
	text-decoration: none;
	color: var(--dt-text);
	transition: border-color 0.12s, color 0.12s;
}

#dt-tooltip-actions a:hover { border-color: var(--dt-accent); color: var(--dt-accent); }

/* Canvas ------------------------------------------------------------------- */

#dt-atlas-canvas {
	flex: 1;
	overflow: auto;
	padding: 20px;
	background: var(--dt-bg);
}

#dt-atlas-svg-wrap {
	min-width: 100%;
	height: 100%;
}

#dt-atlas-svg {
	width: 100%;
	height: auto;
	min-height: 500px;
}

/* Cluster dot colours injected by JS via data-cluster attribute */

/* Empty state hint in sidebar ─────────────────────────────────────────────── */

.dt-atlas-empty-hint {
	font-size:   0.78rem;
	color:       var(--dt-muted);
	line-height: 1.5;
	margin:      0;
	padding:     8px 4px;
	border:      1px dashed var(--dt-border);
	border-radius: var(--dt-radius);
}

/* Empty state canvas ────────────────────────────────────────────────────────── */

.dt-atlas-empty-state {
	display:         flex;
	flex-direction:  column;
	align-items:     flex-start;
	justify-content: center;
	max-width:       560px;
	margin:          60px auto 0;
	padding:         0 24px;
}

.dt-atlas-empty-icon {
	font-size:     2.5rem;
	line-height:   1;
	color:         var(--dt-border);
	margin-bottom: 20px;
}

.dt-atlas-empty-title {
	font-size:     1.3rem;
	font-weight:   700;
	color:         var(--dt-text);
	margin:        0 0 12px;
}

.dt-atlas-empty-body {
	font-size:     0.9rem;
	color:         var(--dt-muted);
	line-height:   1.6;
	margin:        0 0 10px;
}

.dt-atlas-empty-steps {
	font-size:     0.88rem;
	color:         var(--dt-text);
	line-height:   1.7;
	margin:        0 0 28px;
	padding-left:  1.4em;
}

.dt-atlas-empty-steps code {
	background:    var(--dt-surface);
	border:        1px solid var(--dt-border);
	border-radius: 3px;
	padding:       0 4px;
	font-size:     0.82em;
	font-family:   ui-monospace, "Cascadia Code", monospace;
}

.dt-atlas-empty-actions {
	display:    flex;
	gap:        10px;
	flex-wrap:  wrap;
}

.dt-atlas-empty-btn {
	display:         inline-block;
	padding:         8px 18px;
	font-size:       0.85rem;
	font-weight:     600;
	border-radius:   var(--dt-radius);
	text-decoration: none;
	background:      var(--dt-accent);
	color:           #fff;
	transition:      opacity 0.15s;
}

.dt-atlas-empty-btn:hover { opacity: 0.85; color: #fff; }

.dt-atlas-empty-btn--secondary {
	background: transparent;
	color:      var(--dt-muted);
	border:     1px solid var(--dt-border);
}

.dt-atlas-empty-btn--secondary:hover {
	color:        var(--dt-accent);
	border-color: var(--dt-accent);
	opacity:      1;
}

/* Success banner ────────────────────────────────────────────────────────────── */

.dt-atlas-success-banner {
	display:         flex;
	align-items:     center;
	gap:             12px;
	background:      #edfaed;
	border-bottom:   1px solid #b3e6b5;
	padding:         10px 20px;
	font-size:       13px;
	color:           #1a7f37;
	position:        sticky;
	top:             var(--header-h);
	z-index:         90;
	animation:       wfFadeIn 0.3s ease;
}

.dt-atlas-success-icon {
	font-size:    1.1rem;
	flex-shrink:  0;
	font-weight:  700;
}

.dt-atlas-success-text { flex: 1; line-height: 1.5; }

.dt-atlas-success-text strong { color: #1a7f37; }

.dt-banner-hint {
	color:      #166534;
	font-size:  12px;
	margin-left: 8px;
}

.dt-banner-link {
	font-size:       12px;
	font-weight:     600;
	color:           #1a7f37;
	text-decoration: none;
	white-space:     nowrap;
}

.dt-banner-link:hover { text-decoration: underline; }

.dt-banner-close {
	background:  transparent;
	border:      none;
	cursor:      pointer;
	color:       #1a7f37;
	font-size:   1.1rem;
	line-height: 1;
	padding:     0;
	flex-shrink: 0;
	opacity:     0.7;
}

.dt-banner-close:hover { opacity: 1; }

@media (prefers-color-scheme: dark) {
	.dt-atlas-success-banner {
		background:  #14532d;
		border-color: #166534;
		color:        #bbf7d0;
	}
	.dt-atlas-success-text strong,
	.dt-banner-hint,
	.dt-banner-link,
	.dt-banner-close { color: #bbf7d0; }
}