/**
 * Changelog Monster — Frontend Styles
 * Glassmorphism + Dark Mode + Collapsible Cards
 *
 * @package ChangelogMonster
 */

/* ==========================================================================
   Design Tokens (CSS Custom Properties)
   ========================================================================== */

.cmon-changelog {
	/* --- Color palette: Light mode --- */
	--cmon-bg-page: #f0f2f5;
	--cmon-glass-bg: rgba(255, 255, 255, 0.55);
	--cmon-glass-border: rgba(255, 255, 255, 0.6);
	--cmon-glass-shadow: rgba(0, 0, 0, 0.06);
	--cmon-glass-hover-shadow: rgba(0, 0, 0, 0.1);

	--cmon-text-primary: #1a1a2e;
	--cmon-text-secondary: #555770;
	--cmon-text-muted: #8b8da3;

	--cmon-divider: rgba(0, 0, 0, 0.06);
	--cmon-focus-ring: rgba(99, 102, 241, 0.4);

	/* --- Badge palette --- */
	--cmon-badge-new: #10b981;
	--cmon-badge-added: #6366f1;
	--cmon-badge-improved: #3b82f6;
	--cmon-badge-updated: #8b5cf6;
	--cmon-badge-fixed: #ef4444;
	--cmon-badge-hotfix: #f97316;
	--cmon-badge-compliance: #ec4899;
	--cmon-badge-other: #64748b;

	/* --- Spacing --- */
	--cmon-space-xs: 0.25rem;
	--cmon-space-sm: 0.5rem;
	--cmon-space-md: 1rem;
	--cmon-space-lg: 1.5rem;
	--cmon-space-xl: 2rem;
	--cmon-space-2xl: 3rem;

	/* --- Border radius --- */
	--cmon-radius-sm: 8px;
	--cmon-radius-md: 14px;
	--cmon-radius-lg: 20px;
	--cmon-radius-pill: 100px;

	/* --- Typography --- */
	--cmon-font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	--cmon-font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;

	/* --- Transitions --- */
	--cmon-ease: cubic-bezier(0.4, 0, 0.2, 1);
	--cmon-duration: 0.3s;
}

/* --- Dark Mode --- */
@media (prefers-color-scheme: dark) {
	.cmon-changelog {
		--cmon-bg-page: #0f0f1a;
		--cmon-glass-bg: rgba(255, 255, 255, 0.06);
		--cmon-glass-border: rgba(255, 255, 255, 0.1);
		--cmon-glass-shadow: rgba(0, 0, 0, 0.3);
		--cmon-glass-hover-shadow: rgba(0, 0, 0, 0.45);

		--cmon-text-primary: #eaeaf0;
		--cmon-text-secondary: #a0a0be;
		--cmon-text-muted: #6b6b8a;

		--cmon-divider: rgba(255, 255, 255, 0.07);

		/* Badges: slightly brighter for dark bg */
		--cmon-badge-new: #34d399;
		--cmon-badge-added: #818cf8;
		--cmon-badge-improved: #60a5fa;
		--cmon-badge-updated: #a78bfa;
		--cmon-badge-fixed: #f87171;
		--cmon-badge-hotfix: #fb923c;
		--cmon-badge-compliance: #f472b6;
		--cmon-badge-other: #94a3b8;
	}
}

/* ==========================================================================
   Layout
   ========================================================================== */

.cmon-changelog {
	display: flex;
	flex-direction: column;
	gap: var(--cmon-space-md);
	max-width: 820px;
	margin: 0 auto;
	padding: var(--cmon-space-xl) var(--cmon-space-md);
	font-family: var(--cmon-font-sans);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Title
   ========================================================================== */

.cmon-changelog__title {
	font-size: 1.75rem;
	font-weight: 800;
	letter-spacing: -0.025em;
	color: var(--cmon-text-primary);
	margin: 0 0 var(--cmon-space-sm) 0;
	padding: 0;
}

/* ==========================================================================
   Glass Card
   ========================================================================== */

.cmon-card {
	background: var(--cmon-glass-bg);
	-webkit-backdrop-filter: blur(16px) saturate(180%);
	backdrop-filter: blur(16px) saturate(180%);
	border: 1px solid var(--cmon-glass-border);
	border-radius: var(--cmon-radius-lg);
	box-shadow:
		0 1px 2px var(--cmon-glass-shadow),
		0 4px 16px var(--cmon-glass-shadow);
	transition:
		box-shadow var(--cmon-duration) var(--cmon-ease),
		transform var(--cmon-duration) var(--cmon-ease);
	overflow: hidden;
}

.cmon-card:hover {
	box-shadow:
		0 2px 4px var(--cmon-glass-hover-shadow),
		0 8px 32px var(--cmon-glass-hover-shadow);
	transform: translateY(-1px);
}

/* ==========================================================================
   Card Header (clickable toggle)
   ========================================================================== */

.cmon-card__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: 100%;
	padding: var(--cmon-space-lg) var(--cmon-space-xl);
	background: none;
	border: none;
	cursor: pointer;
	color: var(--cmon-text-primary);
	font-family: inherit;
	font-size: 1rem;
	text-align: left;
	outline: none;
	transition: background var(--cmon-duration) var(--cmon-ease);
}

.cmon-card__header:hover {
	background: rgba(128, 128, 128, 0.04);
}

.cmon-card__header:focus-visible {
	box-shadow: inset 0 0 0 2px var(--cmon-focus-ring);
	border-radius: var(--cmon-radius-lg);
}

.cmon-card__version {
	display: flex;
	align-items: center;
	gap: var(--cmon-space-sm);
	flex-wrap: wrap;
}

.cmon-card__version-label {
	font-size: 1.15rem;
	font-weight: 700;
	font-family: var(--cmon-font-mono);
	letter-spacing: -0.01em;
	color: var(--cmon-text-primary);
}

.cmon-card__count {
	display: inline-block;
	font-size: 0.7rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--cmon-text-muted);
	background: var(--cmon-divider);
	padding: 2px 10px;
	border-radius: var(--cmon-radius-pill);
}

/* Chevron icon (pure CSS) */
.cmon-card__chevron {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	flex-shrink: 0;
	border-radius: 50%;
	background: var(--cmon-divider);
	transition: transform var(--cmon-duration) var(--cmon-ease);
}

.cmon-card__chevron::after {
	content: '';
	display: block;
	width: 8px;
	height: 8px;
	border-right: 2px solid var(--cmon-text-secondary);
	border-bottom: 2px solid var(--cmon-text-secondary);
	transform: rotate(45deg);
	margin-top: -3px;
}

.cmon-card--open .cmon-card__chevron {
	transform: rotate(180deg);
}

/* ==========================================================================
   Collapsible Card Body (CSS grid animation)
   ========================================================================== */

.cmon-card__body {
	display: grid;
	grid-template-rows: 0fr;
	transition: grid-template-rows var(--cmon-duration) var(--cmon-ease);
}

.cmon-card--open .cmon-card__body {
	grid-template-rows: 1fr;
}

.cmon-card__body-inner {
	overflow: hidden;
}

/* ==========================================================================
   Entry List
   ========================================================================== */

.cmon-entries {
	list-style: none;
	margin: 0;
	padding: 0 var(--cmon-space-xl) var(--cmon-space-lg);
	display: flex;
	flex-direction: column;
	gap: 0;
	border-top: 1px solid var(--cmon-divider);
}

.cmon-entry {
	display: flex;
	align-items: flex-start;
	gap: var(--cmon-space-sm);
	padding: var(--cmon-space-sm) 0;
	border-bottom: 1px solid var(--cmon-divider);
}

.cmon-entry:last-child {
	border-bottom: none;
}

.cmon-entry__text {
	flex: 1;
	font-size: 0.9rem;
	color: var(--cmon-text-secondary);
	line-height: 1.6;
	padding-top: 1px;
}

/* ==========================================================================
   Badges
   ========================================================================== */

.cmon-badge {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	min-width: 72px;
	padding: 3px 10px;
	font-size: 0.65rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	border-radius: var(--cmon-radius-pill);
	white-space: nowrap;
	user-select: none;
	transition: transform 0.15s var(--cmon-ease);
}

.cmon-badge:hover {
	transform: scale(1.04);
}

/* --- Badge color variants --- */

.cmon-badge--new {
	background: var(--cmon-badge-new);
	color: #fff;
}

.cmon-badge--added {
	background: var(--cmon-badge-added);
	color: #fff;
}

.cmon-badge--improved {
	background: var(--cmon-badge-improved);
	color: #fff;
}

.cmon-badge--updated {
	background: var(--cmon-badge-updated);
	color: #fff;
}

.cmon-badge--fixed {
	background: var(--cmon-badge-fixed);
	color: #fff;
}

.cmon-badge--hotfix {
	background: var(--cmon-badge-hotfix);
	color: #fff;
}

.cmon-badge--compliance {
	background: var(--cmon-badge-compliance);
	color: #fff;
}

.cmon-badge--other {
	background: var(--cmon-badge-other);
	color: #fff;
}

/* ==========================================================================
   Admin Notice (shown to logged-in admins when not configured)
   ========================================================================== */

.cmon-notice {
	padding: var(--cmon-space-md) var(--cmon-space-lg);
	border-radius: var(--cmon-radius-md);
	background: var(--cmon-glass-bg);
	-webkit-backdrop-filter: blur(12px);
	backdrop-filter: blur(12px);
	border: 1px solid var(--cmon-glass-border);
	color: var(--cmon-text-secondary);
	font-size: 0.9rem;
}

.cmon-notice a {
	color: var(--cmon-badge-improved);
	text-decoration: underline;
	text-underline-offset: 2px;
}

.cmon-notice--error {
	border-color: var(--cmon-badge-fixed);
	background: rgba(239, 68, 68, 0.08);
	color: var(--cmon-badge-fixed);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 600px) {
	.cmon-changelog {
		padding: var(--cmon-space-md) var(--cmon-space-sm);
	}

	.cmon-card__header {
		padding: var(--cmon-space-md);
	}

	.cmon-entries {
		padding: 0 var(--cmon-space-md) var(--cmon-space-md);
	}

	.cmon-entry {
		flex-direction: column;
		gap: var(--cmon-space-xs);
	}

	.cmon-badge {
		min-width: auto;
		font-size: 0.6rem;
	}

	.cmon-card__version-label {
		font-size: 1rem;
	}
}