/**
 * Premiumgood Design System
 * Royal Blue + Dark Navy + Gold Accent
 *
 * @package Premiumgood
 */

/* ==========================================================================
   CSS Custom Properties — Color System
   ========================================================================== */
:root {
	/* Primary — Royal Blue */
	--pg-primary-50:  #eff6ff;
	--pg-primary-100: #dbeafe;
	--pg-primary-200: #bfdbfe;
	--pg-primary-300: #93c5fd;
	--pg-primary-400: #60a5fa;
	--pg-primary-500: #3b82f6;
	--pg-primary-600: #2563eb;
	--pg-primary-700: #1d4ed8;
	--pg-primary-800: #0f2644;
	--pg-primary-900: #0a1a2e;

	/* Navy */
	--pg-navy-50:  #f8fafc;
	--pg-navy-100: #f1f5f9;
	--pg-navy-200: #e2e8f0;
	--pg-navy-300: #cbd5e1;
	--pg-navy-400: #94a3b8;
	--pg-navy-500: #64748b;
	--pg-navy-600: #475569;
	--pg-navy-700: #334155;
	--pg-navy-800: #1e293b;
	--pg-navy-900: #0f2644;

	/* Gold Accent */
	--pg-gold-50:  #fefce8;
	--pg-gold-100: #fef9c3;
	--pg-gold-200: #fef08a;
	--pg-gold-300: #fde047;
	--pg-gold-400: #facc15;
	--pg-gold-500: #b88e2f;
	--pg-gold-600: #9a7626;
	--pg-gold-700: #854d0e;

	/* Semantic */
	--pg-color-primary:    var(--pg-primary-800);
	--pg-color-primary-hover: var(--pg-primary-700);
	--pg-color-accent:     var(--pg-gold-500);
	--pg-color-accent-hover: var(--pg-gold-600);
	--pg-color-text:       var(--pg-navy-900);
	--pg-color-text-muted: var(--pg-navy-500);
	--pg-color-text-light: var(--pg-navy-400);
	--pg-color-bg:         #ffffff;
	--pg-color-bg-alt:     var(--pg-navy-50);
	--pg-color-bg-dark:    var(--pg-navy-900);
	--pg-color-border:     var(--pg-navy-200);
	--pg-color-success:    #059669;
	--pg-color-warning:    #d97706;
	--pg-color-error:      #dc2626;
	--pg-color-info:       var(--pg-primary-600);

	/* Typography */
	--pg-font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
	--pg-font-body:    'Inter', system-ui, -apple-system, sans-serif;
	--pg-font-mono:    ui-monospace, 'Cascadia Code', monospace;

	--pg-text-xs:   0.75rem;
	--pg-text-sm:   0.875rem;
	--pg-text-base: 1rem;
	--pg-text-lg:   1.125rem;
	--pg-text-xl:   1.25rem;
	--pg-text-2xl:  1.5rem;
	--pg-text-3xl:  1.875rem;
	--pg-text-4xl:  2.25rem;
	--pg-text-5xl:  3rem;
	--pg-text-6xl:  3.75rem;

	--pg-leading-tight:  1.25;
	--pg-leading-normal: 1.5;
	--pg-leading-relaxed: 1.625;

	--pg-font-normal:   400;
	--pg-font-medium:   500;
	--pg-font-semibold: 600;
	--pg-font-bold:     700;
	--pg-font-extrabold: 800;

	/* Spacing Scale (4px base) */
	--pg-space-0:  0;
	--pg-space-1:  0.25rem;
	--pg-space-2:  0.5rem;
	--pg-space-3:  0.75rem;
	--pg-space-4:  1rem;
	--pg-space-5:  1.25rem;
	--pg-space-6:  1.5rem;
	--pg-space-8:  2rem;
	--pg-space-10: 2.5rem;
	--pg-space-12: 3rem;
	--pg-space-16: 4rem;
	--pg-space-20: 5rem;
	--pg-space-24: 6rem;

	/* Layout */
	--pg-container-sm:  640px;
	--pg-container-md:  768px;
	--pg-container-lg:  1024px;
	--pg-container-xl:  1280px;
	--pg-container-2xl: 1440px;
	--pg-container:     var(--pg-container-xl);

	/* Border Radius */
	--pg-radius-sm:   0.375rem;
	--pg-radius-md:   0.5rem;
	--pg-radius-lg:   0.75rem;
	--pg-radius-xl:   1rem;
	--pg-radius-2xl:  1.5rem;
	--pg-radius-full: 9999px;

	/* Shadows */
	--pg-shadow-xs:  0 1px 2px rgba(15, 23, 42, 0.05);
	--pg-shadow-sm:  0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
	--pg-shadow-md:  0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
	--pg-shadow-lg:  0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
	--pg-shadow-xl:  0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
	--pg-shadow-glow: 0 0 40px rgba(30, 58, 138, 0.15);

	/* Glassmorphism */
	--pg-glass-bg:     rgba(255, 255, 255, 0.72);
	--pg-glass-border: rgba(255, 255, 255, 0.4);
	--pg-glass-blur:   blur(16px);

	/* Transitions */
	--pg-transition-fast:   150ms ease;
	--pg-transition-base:   250ms ease;
	--pg-transition-slow:   400ms ease;
	--pg-transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

	/* Z-index */
	--pg-z-dropdown: 100;
	--pg-z-sticky:   200;
	--pg-z-header:   300;
	--pg-z-overlay:  400;
	--pg-z-modal:    500;
}

/* ==========================================================================
   Typography System
   ========================================================================== */
.pg-heading-1 {
	font-family: var(--pg-font-heading);
	font-size: clamp(var(--pg-text-3xl), 5vw, var(--pg-text-5xl));
	font-weight: var(--pg-font-extrabold);
	line-height: var(--pg-leading-tight);
	letter-spacing: -0.02em;
	color: var(--pg-color-text);
}

.pg-heading-2 {
	font-family: var(--pg-font-heading);
	font-size: clamp(var(--pg-text-2xl), 4vw, var(--pg-text-4xl));
	font-weight: var(--pg-font-bold);
	line-height: var(--pg-leading-tight);
	letter-spacing: -0.015em;
	color: var(--pg-color-text);
}

.pg-heading-3 {
	font-family: var(--pg-font-heading);
	font-size: var(--pg-text-2xl);
	font-weight: var(--pg-font-bold);
	line-height: var(--pg-leading-tight);
	color: var(--pg-color-text);
}

.pg-heading-4 {
	font-family: var(--pg-font-heading);
	font-size: var(--pg-text-xl);
	font-weight: var(--pg-font-semibold);
	line-height: var(--pg-leading-normal);
	color: var(--pg-color-text);
}

.pg-body-lg {
	font-family: var(--pg-font-body);
	font-size: var(--pg-text-lg);
	line-height: var(--pg-leading-relaxed);
	color: var(--pg-color-text-muted);
}

.pg-body {
	font-family: var(--pg-font-body);
	font-size: var(--pg-text-base);
	line-height: var(--pg-leading-normal);
	color: var(--pg-color-text-muted);
}

.pg-body-sm {
	font-family: var(--pg-font-body);
	font-size: var(--pg-text-sm);
	line-height: var(--pg-leading-normal);
	color: var(--pg-color-text-muted);
}

.pg-label {
	font-family: var(--pg-font-body);
	font-size: var(--pg-text-sm);
	font-weight: var(--pg-font-medium);
	color: var(--pg-color-text);
}

.pg-overline {
	font-family: var(--pg-font-body);
	font-size: var(--pg-text-xs);
	font-weight: var(--pg-font-semibold);
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--pg-color-accent);
}

/* ==========================================================================
   Button Library
   ========================================================================== */
.pg-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--pg-space-2);
	padding: var(--pg-space-3) var(--pg-space-6);
	font-family: var(--pg-font-body);
	font-size: var(--pg-text-sm);
	font-weight: var(--pg-font-semibold);
	line-height: 1;
	text-decoration: none;
	border: 2px solid transparent;
	border-radius: var(--pg-radius-lg);
	cursor: pointer;
	transition: all var(--pg-transition-base);
	white-space: nowrap;
}

.pg-btn:focus-visible {
	outline: 2px solid var(--pg-color-primary);
	outline-offset: 2px;
}

.pg-btn--primary {
	background: var(--pg-color-primary);
	color: #fff;
	box-shadow: var(--pg-shadow-sm);
}

.pg-btn--primary:hover {
	background: var(--pg-color-primary-hover);
	box-shadow: var(--pg-shadow-md);
	transform: translateY(-1px);
	color: #fff;
}

.pg-btn--accent {
	background: var(--pg-color-accent);
	color: var(--pg-navy-900);
}

.pg-btn--accent:hover {
	background: var(--pg-color-accent-hover);
	color: #fff;
	transform: translateY(-1px);
}

.pg-btn--outline {
	background: transparent;
	color: var(--pg-color-primary);
	border-color: var(--pg-color-primary);
}

.pg-btn--outline:hover {
	background: var(--pg-color-primary);
	color: #fff;
}

.pg-btn--ghost {
	background: transparent;
	color: var(--pg-color-text);
}

.pg-btn--ghost:hover {
	background: var(--pg-color-bg-alt);
}

.pg-btn--glass {
	background: var(--pg-glass-bg);
	backdrop-filter: var(--pg-glass-blur);
	-webkit-backdrop-filter: var(--pg-glass-blur);
	border-color: var(--pg-glass-border);
	color: var(--pg-color-text);
}

.pg-btn--glass:hover {
	background: rgba(255, 255, 255, 0.9);
}

.pg-btn--sm {
	padding: var(--pg-space-2) var(--pg-space-4);
	font-size: var(--pg-text-xs);
}

.pg-btn--lg {
	padding: var(--pg-space-4) var(--pg-space-8);
	font-size: var(--pg-text-base);
}

.pg-btn--icon {
	padding: var(--pg-space-3);
	border-radius: var(--pg-radius-full);
}

.pg-btn--block {
	width: 100%;
}

/* ==========================================================================
   Card Components
   ========================================================================== */
.pg-card {
	background: var(--pg-color-bg);
	border: 1px solid var(--pg-color-border);
	border-radius: var(--pg-radius-xl);
	overflow: hidden;
	transition: all var(--pg-transition-base);
}

.pg-card:hover {
	box-shadow: var(--pg-shadow-lg);
	transform: translateY(-4px);
}

.pg-card--glass {
	background: var(--pg-glass-bg);
	backdrop-filter: var(--pg-glass-blur);
	-webkit-backdrop-filter: var(--pg-glass-blur);
	border-color: var(--pg-glass-border);
}

.pg-card--flat:hover {
	box-shadow: none;
	transform: none;
}

.pg-card__image {
	position: relative;
	overflow: hidden;
	aspect-ratio: 1;
	background: var(--pg-color-bg-alt);
}

.pg-card__image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform var(--pg-transition-slow);
}

.pg-card:hover .pg-card__image img {
	transform: scale(1.05);
}

.pg-card__body {
	padding: var(--pg-space-5);
}

.pg-card__title {
	font-family: var(--pg-font-heading);
	font-size: var(--pg-text-base);
	font-weight: var(--pg-font-semibold);
	color: var(--pg-color-text);
	margin: 0 0 var(--pg-space-2);
}

.pg-card__price {
	font-family: var(--pg-font-heading);
	font-size: var(--pg-text-lg);
	font-weight: var(--pg-font-bold);
	color: var(--pg-color-primary);
}

.pg-card__price del {
	font-size: var(--pg-text-sm);
	color: var(--pg-color-text-light);
	font-weight: var(--pg-font-normal);
}

.pg-card__badge {
	position: absolute;
	top: var(--pg-space-3);
	left: var(--pg-space-3);
	padding: var(--pg-space-1) var(--pg-space-3);
	font-size: var(--pg-text-xs);
	font-weight: var(--pg-font-semibold);
	border-radius: var(--pg-radius-full);
	background: var(--pg-color-accent);
	color: var(--pg-navy-900);
}

/* ==========================================================================
   Form Components
   ========================================================================== */
.pg-form-group {
	margin-bottom: var(--pg-space-5);
}

.pg-form-label {
	display: block;
	margin-bottom: var(--pg-space-2);
	font-size: var(--pg-text-sm);
	font-weight: var(--pg-font-medium);
	color: var(--pg-color-text);
}

.pg-form-input,
.pg-form-select,
.pg-form-textarea {
	width: 100%;
	padding: var(--pg-space-3) var(--pg-space-4);
	font-family: var(--pg-font-body);
	font-size: var(--pg-text-base);
	color: var(--pg-color-text);
	background: var(--pg-color-bg);
	border: 1px solid var(--pg-color-border);
	border-radius: var(--pg-radius-lg);
	transition: border-color var(--pg-transition-fast), box-shadow var(--pg-transition-fast);
}

.pg-form-input:focus,
.pg-form-select:focus,
.pg-form-textarea:focus {
	outline: none;
	border-color: var(--pg-color-primary);
	box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.12);
}

.pg-form-input::placeholder {
	color: var(--pg-color-text-light);
}

.pg-form-textarea {
	min-height: 120px;
	resize: vertical;
}

.pg-form-search {
	position: relative;
}

.pg-form-search .pg-form-input {
	padding-left: var(--pg-space-12);
	border-radius: var(--pg-radius-full);
}

.pg-form-search__icon {
	position: absolute;
	left: var(--pg-space-4);
	top: 50%;
	transform: translateY(-50%);
	color: var(--pg-color-text-light);
	pointer-events: none;
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */
.pg-container {
	width: 100%;
	max-width: var(--pg-container);
	margin-inline: auto;
	padding-inline: var(--pg-space-4);
}

@media (min-width: 768px) {
	.pg-container {
		padding-inline: var(--pg-space-6);
	}
}

.pg-section {
	padding-block: var(--pg-space-16);
}

.pg-section--alt {
	background: var(--pg-color-bg-alt);
}

.pg-section__header {
	text-align: center;
	max-width: 640px;
	margin-inline: auto;
	margin-bottom: var(--pg-space-12);
}

.pg-grid {
	display: grid;
	gap: var(--pg-space-6);
}

.pg-grid--2 { grid-template-columns: repeat(2, 1fr); }
.pg-grid--3 { grid-template-columns: repeat(3, 1fr); }
.pg-grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
	.pg-grid--4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
	.pg-grid--3,
	.pg-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
	.pg-grid--2,
	.pg-grid--3,
	.pg-grid--4 { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Icon System (Lucide-style inline SVG helpers)
   ========================================================================== */
.pg-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 1.25em;
	height: 1.25em;
	flex-shrink: 0;
}

.pg-icon svg {
	width: 100%;
	height: 100%;
	stroke: currentColor;
	fill: none;
	stroke-width: 2;
	stroke-linecap: round;
	stroke-linejoin: round;
}

.pg-icon--sm { width: 1em; height: 1em; }
.pg-icon--lg { width: 1.5em; height: 1.5em; }
.pg-icon--xl { width: 2em; height: 2em; }

/* ==========================================================================
   Badge & Tag
   ========================================================================== */
.pg-badge {
	display: inline-flex;
	align-items: center;
	padding: var(--pg-space-1) var(--pg-space-3);
	font-size: var(--pg-text-xs);
	font-weight: var(--pg-font-semibold);
	border-radius: var(--pg-radius-full);
}

.pg-badge--primary { background: var(--pg-primary-100); color: var(--pg-primary-800); }
.pg-badge--success { background: #d1fae5; color: #065f46; }
.pg-badge--warning { background: #fef3c7; color: #92400e; }
.pg-badge--error   { background: #fee2e2; color: #991b1b; }

/* ==========================================================================
   Accessibility
   ========================================================================== */
.pg-sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
}