/* =============================================================================
   UNIFY ASSET GALLERY - STYLESHEET
   =============================================================================
   Styles for the Unify Asset Gallery interface, aligned with unify-docs design system.
   ============================================================================= */

/*-----------------------------------------------------------------------------
  CSS Variables & Reset (Aligned with unify-docs)
-----------------------------------------------------------------------------*/
:root {
	/* Colors */
	--color-primary: #071B36;
	--color-accent: #D85F42;
	--color-accent-light: #fef7f0;
	--color-text-dark: #434c5a;
	--color-text: #4b5563;
	--color-text-light: #6b7280;
	--color-text-lighter: #9ca3af;
	--color-bg: #f8fafc;
	--color-bg-card: #ffffff;
	--color-border: #e5e7eb;
	--color-border-light: #f1f5f9;

	/* Typography */
	--font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
	--font-mono: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;

	/* Text Sizes */
	--text-xs: 0.75rem;
	--text-xsm: 0.8rem;
	--text-sm: 0.875rem;
	--text-base: 1rem;
	--text-lg: 1.125rem;
	--text-xl: 1.25rem;
	--text-2xl: 1.5rem;
	--text-3xl: 1.875rem;
	--text-4xl: 2.25rem;
	--text-5xl: 3rem;

	/* Line Heights */
	--leading-tight: 1.25;
	--leading-snug: 1.375;
	--leading-normal: 1.5;
	--leading-relaxed: 1.625;

	/* Font Weights */
	--font-light: 300;
	--font-normal: 400;
	--font-medium: 500;
	--font-semibold: 600;
	--font-bold: 700;

	/* Letter Spacing */
	--tracking-tight: -0.025em;
	--tracking-normal: 0em;
	--tracking-wide: 0.025em;

	/* Spacing */
	--spacing-xs: 8px;
	--spacing-sm: 12px;
	--spacing-md: 16px;
	--spacing-lg: 24px;
	--spacing-xl: 32px;
	--spacing-2xl: 40px;
	--spacing-3xl: 48px;
	--spacing-4xl: 56px;
	--spacing-5xl: 64px;

	/* Shadows */
	--shadow-sm: 0 2px 8px rgba(7, 27, 54, 0.15);
	--shadow-md: 0 4px 12px rgba(216, 95, 66, 0.1);
	--shadow-lg: 0 4px 20px rgba(7, 27, 54, 0.08);

	/* Transitions */
	--transition-fast: 0.2s ease;
	--transition-normal: 0.3s ease;
}

/* Reset */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

/* =============================================================================
   BASE LAYOUT & TYPOGRAPHY
   ============================================================================= */

body {
	font-family: var(--font-family);
	margin: 0;
	padding: var(--spacing-lg) var(--spacing-lg) 0;
	background: var(--color-bg);
	color: var(--color-primary);
	line-height: var(--leading-normal);
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.container {
	max-width: 900px;
	width: min(66vw, calc(100vw - 32px));
	margin: 0 auto;
	background: var(--color-bg-card);
	border-radius: 12px;
	box-shadow: var(--shadow-lg);
	overflow: hidden;
	flex: 1;
}

/* =============================================================================
   HEADER & BRANDING
   ============================================================================= */

.header {
	background: var(--color-primary);
	color: white;
	padding: var(--spacing-2xl) var(--spacing-xl);
	text-align: center;
}

.header .logo {
	width: 60px;
	height: auto;
	margin-bottom: var(--spacing-md);
}

.header h1 {
	margin: 0;
	font-size: var(--text-4xl);
	font-weight: var(--font-semibold);
	letter-spacing: var(--tracking-tight);
}

.header p {
	margin: var(--spacing-xs) 0 0;
	opacity: 0.9;
	font-size: var(--text-lg);
	font-weight: var(--font-light);
}

/* =============================================================================
   CONTROLS & SEARCH INTERFACE
   ============================================================================= */

.controls {
	padding: var(--spacing-xl);
	display: flex;
	gap: var(--spacing-md);
	align-items: center;
	flex-wrap: wrap;
}

.search-box {
	flex: 1;
	min-width: 300px;
	padding: var(--spacing-sm) var(--spacing-md);
	border: 2px solid var(--color-border);
	border-radius: 8px;
	font-size: var(--text-base);
	font-family: var(--font-family);
	transition: border-color var(--transition-fast);
	background: var(--color-bg);
	color: var(--color-text);
	text-align: left;
}

.search-box:focus {
	outline: none;
	border-color: var(--color-accent);
}

.search-box::placeholder {
	color: var(--color-text-light);
}

/* =============================================================================
   INSTRUCTIONS SECTION
   ============================================================================= */

.instructions {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: 8px;
	padding: var(--spacing-lg) var(--spacing-xl);
	margin: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
}

.instructions h3 {
	margin: 0 0 var(--spacing-lg) 0;
	color: var(--color-primary);
	font-size: var(--text-xl);
	font-weight: var(--font-semibold);
}

.instruction-items {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-md);
}

.instruction-item {
	display: flex;
	align-items: flex-start;
	gap: var(--spacing-sm);
	color: var(--color-text);
	line-height: var(--leading-normal);
}

.instruction-item .icon {
	font-size: var(--text-lg);
	margin-top: -3px;
	flex-shrink: 0;
}

.instruction-item code {
	background: var(--color-border-light);
	padding: 2px 6px;
	border-radius: 4px;
	font-family: var(--font-mono);
	font-size: var(--text-sm);
	color: var(--color-accent);
}

/* =============================================================================
   COLOR PICKER SECTION
   ============================================================================= */

.color-picker-section {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: 8px;
	padding: var(--spacing-lg) var(--spacing-xl);
	margin: var(--spacing-xl) var(--spacing-xl) 0 var(--spacing-xl);
}

.color-picker-section h3 {
	margin: 0 0 var(--spacing-xs) 0;
	color: var(--color-primary);
	font-size: var(--text-xl);
	font-weight: var(--font-semibold);
}

.color-picker-section p {
	margin: 0 0 var(--spacing-lg) 0;
	color: var(--color-text);
	line-height: var(--leading-normal);
}

.color-controls {
	display: flex;
	align-items: center;
	gap: var(--spacing-md);
}

.color-input-group {
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
}

.color-input-group label {
	font-weight: var(--font-medium);
	color: var(--color-primary);
	font-size: var(--text-base);
}

#colorPicker {
	width: 50px;
	height: 40px;
	border: 2px solid var(--color-border);
	border-radius: 6px;
	cursor: pointer;
	outline: none;
	transition: border-color var(--transition-fast);
}

#colorPicker:hover {
	border-color: var(--color-accent);
}

#colorPicker::-webkit-color-swatch-wrapper {
	padding: 0;
	border: none;
	border-radius: 4px;
}

#colorPicker::-webkit-color-swatch {
	border: none;
	border-radius: 4px;
}

.color-hex {
	font-family: var(--font-mono);
	font-weight: var(--font-semibold);
	font-size: var(--text-base);
	color: var(--color-primary);
	background: var(--color-border);
	padding: var(--spacing-xs) var(--spacing-sm);
	border-radius: 6px;
	min-width: 80px;
	text-align: center;
}

.reset-btn {
	background: var(--color-text-light);
	color: white;
	border: none;
	height: 40px;
	padding: var(--spacing-xs) var(--spacing-md);
	border-radius: 6px;
	cursor: pointer;
	font-size: var(--text-sm);
	font-weight: var(--font-medium);
	font-family: var(--font-family);
	transition: all var(--transition-fast);
}

.reset-btn:hover {
	background: var(--color-text);
	transform: translateY(-1px);
}

.reset-btn:active {
	transform: translateY(0);
}

/* =============================================================================
   STATUS & INFORMATION DISPLAY
   ============================================================================= */

.stats {
	padding: var(--spacing-lg) var(--spacing-xl) 0px var(--spacing-xl);
	text-align: center;
	border-top: 1px solid var(--color-border);
	color: var(--color-text-light);
	background: var(--color-bg);
	font-size: var(--text-base);
	font-weight: var(--font-medium);
}

.loading {
	text-align: center;
	padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-5xl);
	color: var(--color-text-light);
	font-size: var(--text-lg);
	background: var(--color-bg);
}

/* =============================================================================
   ASSET GRID & CARD LAYOUT
   ============================================================================= */

.assets-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
	gap: 18px;
	padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl) var(--spacing-xl);
	background: var(--color-bg);
}

.asset-card {
	background: var(--color-bg-card);
	border: 2px solid var(--color-border);
	border-radius: 12px;
	padding: var(--spacing-lg);
	text-align: center;
	transition: all var(--transition-fast);
}

.asset-card:hover {
	border-color: var(--color-accent);
	box-shadow: var(--shadow-md);
	transform: translateY(-2px);
}

/* =============================================================================
   ASSET PREVIEW & CONTENT
   ============================================================================= */

.asset-preview {
	width: 80px;
	height: 80px;
	margin: 0 auto var(--spacing-lg);
	background: var(--color-bg-card);
	border-radius: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1px solid var(--color-border);
	position: relative;
	/* Always relative since loading and error states need it */
}

.asset-preview.loading::before {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 48px;
	height: 48px;
	margin: -24px 0 0 -24px;
	background: #e2e8f0;
	border-radius: 8px;
	animation: loading-fade 2s ease-in-out infinite;
	z-index: 1;
}

.asset-preview.error::after {
	content: '⚠️';
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	font-size: 24px;
	opacity: 0.6;
	z-index: 1;
}

.asset-preview.svg-icon {
	background: var(--color-accent-light);
	border-color: #fed7aa;
}

.asset-preview img {
	max-width: 85%;
	max-height: 85%;
	border-radius: 6px;
	transition: opacity 0.3s ease-in-out;
}

@keyframes loading-fade {

	0%,
	100% {
		opacity: 0.3;
	}

	50% {
		opacity: 0.7;
	}
}

.asset-name {
	font-size: var(--text-sm);
	font-weight: var(--font-semibold);
	margin: 0 0 var(--spacing-md);
	color: var(--color-primary);
	word-break: break-word;
	line-height: var(--leading-snug);
}

.asset-url {
	font-size: var(--text-xs);
	color: var(--color-text-light);
	background: var(--color-bg-card);
	padding: var(--spacing-xs) var(--spacing-sm);
	border-radius: 6px;
	word-break: break-all;
	margin-bottom: var(--spacing-lg);
	font-family: var(--font-mono);
	border: 1px solid var(--color-border);
}

/* =============================================================================
   INTERACTIVE ELEMENTS & BUTTONS
   ============================================================================= */

.copy-btn {
	background: var(--color-accent);
	color: white;
	border: none;
	padding: var(--spacing-sm) var(--spacing-lg);
	border-radius: 8px;
	font-size: var(--text-sm);
	font-weight: var(--font-medium);
	font-family: var(--font-family);
	cursor: pointer;
	width: 100%;
	transition: all var(--transition-fast);
}

.copy-btn:hover {
	background: #c54d2a;
	transform: translateY(-1px);
}

.copy-btn:active {
	transform: translateY(0);
}

/* =============================================================================
   PAGINATION CONTROLS
   ============================================================================= */

.pagination {
	text-align: center;
	padding: var(--spacing-sm) var(--spacing-xl) var(--spacing-2xl) var(--spacing-xl);
	background: var(--color-bg);
	display: flex;
	justify-content: center;
	gap: var(--spacing-sm);
	align-items: center;
}

.page-btn {
	padding: var(--spacing-sm) var(--spacing-lg);
	background: var(--color-bg-card);
	border: 2px solid var(--color-border);
	border-radius: 8px;
	cursor: pointer;
	font-weight: var(--font-medium);
	font-family: var(--font-family);
	color: var(--color-primary);
	transition: all var(--transition-fast);
}

.page-btn:hover,
.page-btn.active {
	background: var(--color-accent);
	color: white;
	border-color: var(--color-accent);
}

.page-btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.page-btn:disabled:hover {
	background: var(--color-bg-card);
	color: var(--color-primary);
	border-color: var(--color-border);
}

.page-info {
	color: var(--color-text-light);
	font-weight: var(--font-medium);
	margin: 0 var(--spacing-md);
}

/* =============================================================================
   FOOTER & SUPPLEMENTARY CONTENT
   ============================================================================= */

.footer {
	background: var(--color-bg);
	text-align: center;
	padding: var(--spacing-lg);
	margin-top: var(--spacing-lg);
	color: var(--color-text-lighter);
	font-size: var(--text-sm);
	font-weight: var(--font-normal);
}

/* =============================================================================
   RESPONSIVE DESIGN & MOBILE OPTIMIZATION
   ============================================================================= */

@media (max-width: 768px) {
	body {
		padding: var(--spacing-lg);
	}

	.container {
		width: 95vw;
	}

	.header {
		padding: var(--spacing-xl) var(--spacing-lg);
	}

	.header h1 {
		font-size: var(--text-3xl);
	}

	.controls {
		padding: var(--spacing-lg);
	}

	.search-box {
		min-width: 200px;
	}

	.instructions {
		margin: 0 var(--spacing-lg) var(--spacing-lg);
		padding: var(--spacing-lg);
	}

	.color-picker-section {
		margin: 0 var(--spacing-lg) var(--spacing-lg);
		padding: var(--spacing-lg);
	}

	.color-controls {
		flex-direction: column;
		align-items: flex-start;
		gap: var(--spacing-md);
	}

	.color-input-group {
		flex-direction: column;
		align-items: flex-start;
		gap: var(--spacing-xs);
	}

	.assets-grid {
		padding: var(--spacing-lg);
		grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
		gap: var(--spacing-md);
	}

	.stats {
		padding: var(--spacing-lg) var(--spacing-lg) 0;
	}

	.pagination {
		padding: var(--spacing-xl) var(--spacing-lg);
	}

	.footer {
		padding: var(--spacing-lg);
	}
}

@media (max-width: 800px) {
	.container {
		width: calc(100vw - 24px);
		/* Full width minus padding */
		max-width: none;
	}

	body {
		padding: 12px;
	}

	.instructions {
		margin-top: 25px;
	}
}