/**
 * Simple Price Compare - Frontend Styles
 *
 * フロントエンド価格比較表のスタイル。
 * レスポンシブ対応、アクセシビリティ対応、パフォーマンス最適化。
 *
 * @package SimplePrice
 * @since 1.0.0
 */

/* ===== CSS Variables ===== */
:root {
	/* Color Palette */
	--spc-primary-text: #333;
	--spc-secondary-text: #666;
	--spc-border-color: #e0e0e0;
	--spc-bg-light: #f9f9f9;
	--spc-error-color: #d32f2f;

	/* Button Colors - Amazon */
	--spc-btn-amazon-bg: #ff9900;
	--spc-btn-amazon-bg-hover: #e68900;
	--spc-btn-amazon-text: #fff;

	/* Button Colors - Rakuten */
	--spc-btn-rakuten-bg: #bf0000;
	--spc-btn-rakuten-bg-hover: #a60000;
	--spc-btn-rakuten-text: #fff;

	/* Button Colors - Yahoo */
	--spc-btn-yahoo-bg: #ff0033;
	--spc-btn-yahoo-bg-hover: #e6002e;
	--spc-btn-yahoo-text: #fff;

	/* Focus Color (WCAG AAA) */
	--spc-focus-color: #005fcc;

	/* Spacing */
	--spc-spacing-xs: 4px;
	--spc-spacing-sm: 8px;
	--spc-spacing-md: 16px;
	--spc-spacing-lg: 24px;
	--spc-spacing-xl: 32px;

	/* Typography */
	--spc-font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
	:root {
		--spc-primary-text: #e0e0e0;
		--spc-secondary-text: #b0b0b0;
		--spc-border-color: #444;
		--spc-bg-light: #2a2a2a;
		--spc-btn-amazon-bg: #cc7a00;
		--spc-btn-rakuten-bg: #990000;
		--spc-btn-yahoo-bg: #cc0028;
	}
}

/* ===== Container ===== */
.spc-price-comparison {
	margin: var(--spc-spacing-lg) 0;
	font-family: var(--spc-font-base);
	box-sizing: border-box;
}

/* すべての子要素にもbox-sizingを適用（Cocoon互換性） */
.spc-price-comparison *,
.spc-price-comparison *::before,
.spc-price-comparison *::after {
	box-sizing: border-box;
}

.spc-product-block {
	margin-bottom: var(--spc-spacing-xl);
	padding: var(--spc-spacing-lg);
	border: 1px solid var(--spc-border-color);
	border-radius: 8px;
	background-color: var(--spc-bg-light);
	/* Cocoonテーマとの競合を防ぐため、幅を明示 */
	max-width: 100%;
	overflow: hidden;
}

/* ===== Product Header ===== */
.spc-product-header {
	display: flex;
	align-items: flex-start;
	gap: var(--spc-spacing-md);
	margin-bottom: var(--spc-spacing-lg);
	width: 100%;
}

.spc-product-image {
	flex-shrink: 0;
	width: 240px;
}

.spc-product-image img {
	display: block;
	width: 240px;
	height: 240px;
	object-fit: cover;
	border-radius: 4px;
	border: 1px solid var(--spc-border-color);
}

.spc-product-title {
	flex: 1;
	min-width: 0;
}

.spc-product-title h3 {
	margin: 0 0 var(--spc-spacing-sm) 0;
	font-size: 18px;
	font-weight: 600;
	color: var(--spc-primary-text);
	line-height: 1.4;
}

.spc-sale-badge {
	display: inline-block;
	padding: 2px 8px;
	margin-left: 6px;
	background-color: #d32f2f;
	color: #fff;
	font-size: 10px;
	font-weight: 700;
	text-transform: uppercase;
	border-radius: 3px;
	vertical-align: middle;
}

/* ===== Price Columns ===== */
.spc-price-columns {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--spc-spacing-md);
	margin-bottom: var(--spc-spacing-md);
	/* グリッドの幅を明示してずれを防止 */
	width: 100%;
}

.spc-price-column {
	display: flex;
	flex-direction: column;
	align-items: center;
	padding: var(--spc-spacing-md);
	border: 1px solid var(--spc-border-color);
	border-radius: 6px;
	background-color: #fff;
	text-align: center;
	/* 最小幅を設定してレイアウト崩れ防止 */
	min-width: 0;
}

.spc-shop-name {
	margin-bottom: var(--spc-spacing-sm);
	font-size: 14px;
	font-weight: 600;
	color: var(--spc-secondary-text);
	text-transform: uppercase;
}

.spc-price {
	margin: 0 0 var(--spc-spacing-md) 0;
	font-size: 20px;
	font-weight: 700;
	color: var(--spc-primary-text);
	line-height: 1.4;
}

.spc-price-amount {
	font-size: 24px;
}

.spc-price-currency {
	font-size: 16px;
	margin-left: 2px;
}

.spc-no-price {
	margin: 0 0 var(--spc-spacing-md) 0;
	font-size: 14px;
	color: var(--spc-error-color);
	min-height: 48px;
	display: flex;
	align-items: center;
	justify-content: center;
}

/* ===== Purchase Buttons ===== */
.spc-button {
	display: inline-block;
	width: 180px;
	min-height: 44px;
	padding: 12px 24px;
	font-size: 14px;
	font-weight: 600;
	text-align: center;
	text-decoration: none;
	border: none;
	border-radius: 6px;
	cursor: pointer;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
	position: relative;
}

/* Expand touch target */
.spc-button::before {
	content: "";
	position: absolute;
	top: -4px;
	right: -4px;
	bottom: -4px;
	left: -4px;
}

.spc-button:hover,
.spc-button:focus-visible {
	transform: translateY(-2px);
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
	outline: none;
}

.spc-button:focus-visible {
	box-shadow: 0 0 0 3px var(--spc-focus-color);
}

/* Amazon Button */
.spc-button-amazon {
	background-color: var(--spc-btn-amazon-bg);
	color: var(--spc-btn-amazon-text);
}

.spc-button-amazon:hover {
	background-color: var(--spc-btn-amazon-bg-hover);
}

/* Rakuten Button */
.spc-button-rakuten {
	background-color: var(--spc-btn-rakuten-bg);
	color: var(--spc-btn-rakuten-text);
}

.spc-button-rakuten:hover {
	background-color: var(--spc-btn-rakuten-bg-hover);
}

/* Yahoo Button */
.spc-button-yahoo {
	background-color: var(--spc-btn-yahoo-bg);
	color: var(--spc-btn-yahoo-text);
}

.spc-button-yahoo:hover {
	background-color: var(--spc-btn-yahoo-bg-hover);
}

/* Disabled Button */
.spc-button-disabled {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none !important;
	box-shadow: none !important;
}

/* ===== Update Timestamp ===== */
.spc-update-time {
	margin: var(--spc-spacing-md) 0 0 0;
	padding-top: var(--spc-spacing-md);
	border-top: 1px solid var(--spc-border-color);
	font-size: 12px;
	color: var(--spc-secondary-text);
	text-align: right;
}

/* ===== Aggregate Display ===== */
.spc-display-aggregate {
	display: flex;
	flex-direction: column;
	gap: var(--spc-spacing-xl);
}

.spc-display-aggregate .spc-aggregate-header {
	display: flex;
	justify-content: center;
	margin-bottom: var(--spc-spacing-lg);
}

.spc-display-aggregate .spc-aggregate-image {
	width: 240px;
}

.spc-display-aggregate .spc-aggregate-image img {
	display: block;
	width: 240px;
	height: 240px;
	object-fit: cover;
	border-radius: 4px;
	border: 1px solid var(--spc-border-color);
}

.spc-display-aggregate .spc-aggregate-products {
	display: flex;
	flex-direction: column;
	gap: var(--spc-spacing-xl);
}

.spc-display-aggregate .spc-aggregate-product {
	padding: var(--spc-spacing-lg);
	border: 1px solid var(--spc-border-color);
	border-radius: 8px;
	background-color: var(--spc-bg-light);
}

.spc-display-aggregate .spc-aggregate-title {
	margin: 0 0 var(--spc-spacing-md) 0;
	font-size: 18px;
	font-weight: 600;
	color: var(--spc-primary-text);
	text-align: left;
}

.spc-display-aggregate .spc-update-time {
	margin-top: var(--spc-spacing-lg);
}

/* ===== Error Message ===== */
.spc-error-message {
	padding: var(--spc-spacing-md);
	background-color: #fff3cd;
	border: 1px solid #ffc107;
	border-radius: 4px;
	color: #856404;
	margin: var(--spc-spacing-lg) 0;
}

.spc-error-message p {
	margin: 0;
}

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

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
	.spc-price-columns {
		gap: var(--spc-spacing-sm);
	}

	.spc-price-column {
		padding: var(--spc-spacing-sm);
	}

	.spc-button {
		width: 150px;
		padding: 10px 16px;
		font-size: 13px;
	}
}

/* Mobile (max-width: 767px) */
@media (max-width: 767px) {
	.spc-product-header {
		flex-direction: column;
		align-items: center;
		text-align: center;
	}

	.spc-product-image img {
		width: 160px;
		height: 160px;
	}

	.spc-product-title h3 {
		font-size: 16px;
	}

	.spc-price-columns {
		grid-template-columns: 1fr;
		gap: var(--spc-spacing-sm);
	}

	.spc-price-column {
		padding: var(--spc-spacing-md);
	}

	.spc-price {
		font-size: 18px;
	}

	.spc-price-amount {
		font-size: 22px;
	}

	.spc-button {
		width: 100%;
		min-height: 44px;
		padding: 14px 16px;
		font-size: 14px;
	}

	.spc-update-time {
		text-align: center;
	}

	.spc-display-aggregate .spc-aggregate-image {
		width: 160px;
	}

	.spc-display-aggregate .spc-aggregate-image img {
		width: 160px;
		height: 160px;
	}

	.spc-display-aggregate .spc-aggregate-product {
		padding: var(--spc-spacing-md);
	}

	.spc-display-aggregate .spc-aggregate-title {
		text-align: center;
	}
}

/* ===== Print Styles ===== */
@media print {
	.spc-button {
		display: none;
	}

	.spc-product-block {
		page-break-inside: avoid;
		border: 1px solid #000;
	}
}

/* ===== Accessibility ===== */

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
	.spc-product-block {
		border-width: 2px;
	}

	.spc-button {
		border: 2px solid currentColor;
	}
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
	.spc-button {
		transition: none;
	}

	.spc-button:hover {
		transform: none;
	}
}

/* Screen Reader Only */
.spc-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;
}