/*
Theme Name: SN-O3 LP Child Theme
Theme URI: https://goodrian-sn03.example.com
Description: Landing page theme for SN-O3 by 株式会社グッドリアン
Author: Goodrian / Triseed
Author URI: https://goodrian.co.jp
Template: unitone
Version: 1.0.0
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: goodrian-sn03
Domain Path: /languages
Requires at least: 6.4
Requires PHP: 8.1
*/

/* ================================================================
   SN-O3 LP Design System

   Design control strategy: theme.json first
   This CSS file provides only:
   - Custom animations & transitions
   - Dark mode adjustments
   - Complex layout patterns
   - Decorative SVG elements
   ================================================================ */

/* ================================================================
   Custom CSS Variables (supplement to theme.json presets)
   ================================================================ */

:root {
	/* Transitions */
	--transition-fast: 0.15s ease;
	--transition-normal: 0.2s ease;
	--transition-slow: 0.3s ease;

	/* Shadows */
	--shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
	--shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
	--shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
	--shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);

	/* Z-index layers */
	--z-dropdown: 1000;
	--z-sticky: 990;
	--z-fixed: 999;
	--z-modal: 1050;
}

/* ================================================================
   Dark Mode Support
   ================================================================ */

@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) {
		--shadow-sm: 0 1px 2px rgba(255, 255, 255, 0.05);
		--shadow-md: 0 4px 6px rgba(255, 255, 255, 0.1);
		--shadow-lg: 0 10px 15px rgba(255, 255, 255, 0.15);
	}
}

:root[data-theme="dark"] {
	--shadow-sm: 0 1px 2px rgba(255, 255, 255, 0.05);
	--shadow-md: 0 4px 6px rgba(255, 255, 255, 0.1);
	--shadow-lg: 0 10px 15px rgba(255, 255, 255, 0.15);
}

/* ================================================================
   Base Elements
   ================================================================ */

html {
	scroll-behavior: smooth;
}

.wp-block-site-logo img {
	width: min(16.25rem, 64vw);
	max-width: 100%;
	height: auto;
}

.wp-block-image img {
	display: block;
}

/* Contact Form 7 の styles.css より後に読み込まれるため、ここで上書きする */
.wpcf7-list-item {
	margin-left: 0;
}

/* Smooth transitions for theme changes */
body {
	transition: background-color var(--transition-normal),
				color var(--transition-normal);
}

/* ================================================================
   Interactive Elements - Transitions & Hover Effects
   ================================================================ */

/* Button hover effect */
.wp-block-button__link {
	transition: all var(--transition-normal);
}

.wp-block-button__link:hover {
	transform: translateY(-2px);
	box-shadow: var(--shadow-lg);
}

.wp-block-button__link:active {
	transform: translateY(0);
}

/* Link underline animation */
a {
	transition: color var(--transition-normal),
				border-color var(--transition-normal);
}

a:hover {
	text-decoration: underline;
}

/* ================================================================
   Form Elements
   ================================================================ */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
textarea,
select {
	transition: border-color var(--transition-normal),
				box-shadow var(--transition-normal);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
	outline: none;
	border-color: var(--wp--preset--color--primary-blue);
	box-shadow: 0 0 0 3px rgba(59, 143, 217, 0.1);
}

/* ================================================================
   Water Splash Decorative Background
   ================================================================ */

.water-splash {
	opacity: 0.12;
	position: absolute;
	pointer-events: none;
	z-index: 0;
}

.water-flow {
	fill: url(#gradient-blue-to-white);
	filter: drop-shadow(0 2px 4px rgba(59, 143, 217, 0.2));
}

/* ================================================================
   Responsive Typography Adjustments
   ================================================================ */

@media (max-width: 1023px) {
	h1 {
		font-size: 2rem;
	}

	h2 {
		font-size: 1.75rem;
	}

	h3 {
		font-size: 1.5rem;
	}
	h4 {
		font-size: 1.25rem;
	}
}

@media (max-width: 767px) {
	h1 {
		font-size: 1.75rem;
	}

	h2 {
		font-size: 1.5rem;
	}

	h3 {
		font-size: 1.25rem;
	}
	h4 {
		font-size: 1.125rem;
	}

	body {
		font-size: 16px;
	}
}

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

/* Skip to main content link */
.skip-link {
	position: absolute;
	top: -40px;
	left: 0;
	background: var(--wp--preset--color--primary-blue);
	color: white;
	padding: 0.75rem 1rem;
	text-decoration: none;
	z-index: var(--z-modal);
	border-radius: 4px;
}

.skip-link:focus {
	top: 0;
}

/* Enhanced focus visibility for keyboard navigation */
*:focus-visible {
	outline: 2px solid var(--wp--preset--color--primary-blue);
	outline-offset: 2px;
}

/* ================================================================
   Print Styles
   ================================================================ */

@media print {
	body {
		background: white;
		color: #1a3a4a;
	}

	.no-print,
	.wp-block-button,
	form {
		display: none;
	}
}

/* ================================================================
   SN-O3 LP: Sections 01-05

   Layout is owned by unitone primitives. These rules add only the
   product-specific visual language and small responsive refinements.
   ================================================================ */

:root {
	--sn03-radius-sm: 4px;
	--sn03-radius-lg: 4px;
	--sn03-border-soft: rgba(26, 58, 74, 0.12);
	--sn03-shadow-soft: 0 1rem 3rem rgba(26, 58, 74, 0.08);
	--sn03-section-space: 120px;
}

#sn03-hero,
#sn03-worries,
#sn03-ozone-water,
#sn03-disinfectant-comparison,
#sn03-reasons,
#sn03-steps {
	scroll-margin-top: 2rem;
}

.sn03-eyebrow,
.sn03-card-number,
.sn03-flow-label,
.sn03-step-number {
	margin-bottom: 0.5rem;
	color: var(--sn03-primary-blue);
	font-family: var(--wp--preset--font-family--noto-sans-jp);
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}

.sn03-eyebrow--inverse {
	color: #8ed2ff;
}

.sn03-heading-mark::after {
	content: "";
	display: block;
	inline-size: 3.5rem;
	block-size: 4px;
	margin: 1rem auto 0;
	background: linear-gradient(90deg, #00b6fa 0, 
		var(--sn03-primary-blue) 100%);
	border-radius: 999px;
}

.sn03-legal-page {
	width: min(100%, 68rem);
	margin-inline: auto;
}

.sn03-legal-page h2 {
	padding-bottom: 0.5rem;
	border-bottom: 1px solid var(--sn03-mid-gray);
	color: var(--sn03-dark-navy);
	font-size: clamp(1.25rem, 2.5vw, 1.6rem);
}

.sn03-legal-table {
	width: 100%;
	overflow-x: auto;
}

.sn03-legal-table table {
	width: 100%;
	min-width: 38rem;
	margin: 0;
	border-collapse: collapse;
}

.sn03-legal-table th,
.sn03-legal-table td {
	padding: clamp(0.8rem, 2vw, 1.1rem);
	border: 1px solid var(--sn03-mid-gray);
	text-align: left;
	vertical-align: top;
}

.sn03-legal-table th {
	width: 32%;
	min-width: 11rem;
	background: var(--sn03-light-gray);
	color: var(--sn03-dark-navy);
	font-weight: 600;
}

.sn03-legal-table small {
	color: var(--sn03-dark-gray);
}

.sn03-site-footer a {
	color: inherit;
}

.sn03-footer-legal-links {
	font-size: inherit;
}

.sn03-footer-legal-links .wp-block-navigation__container {
	gap: 0.65rem 1.25rem;
}

.sn03-site-footer p {
	margin: 0;
}

.sn03-image-placeholder {
	display: grid;
	min-height: 20rem;
	place-items: center;
	padding: 2rem;
	border: 1px dashed rgba(59, 143, 217, 0.55);
	border-radius: var(--sn03-radius-lg);
	background:
		linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(232, 243, 249, 0.72));
	color: var(--sn03-dark-gray);
	text-align: center;
}

.sn03-image-placeholder > p {
	max-width: 24rem;
	margin: 0;
}

.sn03-worry-card,
.sn03-flow-card,
.sn03-reason-card {
	box-sizing: border-box;
	height: 100%;
	padding: clamp(1.4rem, 3vw, 2.15rem);
	border: 1px solid var(--sn03-border-soft);
	border-radius: var(--sn03-radius-sm);
	background: #fff;
}

.sn03-worry-card h3,
.sn03-reason-card h3 {
	font-size: clamp(1.15rem, 2vw, 1.45rem);
}

.sn03-flow-card {
	position: relative;
	padding-top: clamp(2rem, 4vw, 3rem);
}

.sn03-flow-card--before {
	background: #f8f9fa;
}

.sn03-flow-card--after {
	border-color: rgba(59, 143, 217, 0.45);
	box-shadow: var(--sn03-shadow-soft);
}

.sn03-flow-card ol {
	padding-left: 1.4rem;
}

.sn03-flow-card li + li {
	margin-top: 0.55rem;
}

.sn03-reason-card {
	color: var(--sn03-dark-navy);
}

.sn03-reason-number {
	margin: 0 0 1.25rem;
	color: rgba(59, 143, 217, 0.2);
	font-family: var(--wp--preset--font-family--noto-sans-jp);
	font-size: clamp(4rem, 8vw, 6.5rem);
	font-weight: 700;
	letter-spacing: -0.06em;
	line-height: 0.75;
}

.sn03-step-number {
	display: inline-flex;
	align-items: center;
	gap: 0.65rem;
	font-size: 0.85rem;
}

.sn03-step-number::after {
	display: block;
	width: 3rem;
	height: 1px;
	background: currentColor;
	content: "";
}

/* ================================================================
   SN-O3 LP: Sections 06-08

   Unitone owns layout and responsive wrapping. These rules give the
   use cases, evidence, and technology flow their product language.
   ================================================================ */

#sn03-use-cases,
#sn03-evidence,
#sn03-aqua-ozone {
	scroll-margin-top: 2rem;
}

.sn03-use-case-card,
.sn03-evidence-card,
.sn03-evidence-note {
	box-sizing: border-box;
	height: 100%;
	padding: clamp(1.4rem, 3vw, 2.25rem);
	border: 1px solid var(--sn03-border-soft);
	border-radius: var(--sn03-radius-lg);
}

.sn03-use-case-card {
	background: #fff;
}

.sn03-use-case-card {
	box-shadow: 0 0.75rem 2rem rgba(26, 58, 74, 0.05);
}

.sn03-use-case-card .sn03-image-placeholder {
	min-height: 12rem;
	margin-bottom: 1.5rem;
}

.sn03-use-case-card h3 {
	font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.sn03-evidence-card {
	background: #fff;
	color: var(--sn03-dark-navy);
}

.sn03-evidence-note {
	border-color: rgba(142, 210, 255, 0.35);
	background: rgba(255, 255, 255, 0.07);
}

.sn03-card-number--inverse {
	color: #8ed2ff;
}

.sn03-evidence-table {
	display: grid;
	gap: 0.8rem;
}

.sn03-evidence-table > p {
	display: grid;
	grid-template-columns: minmax(6.5rem, 0.45fr) 1fr;
	gap: 1rem;
	margin: 0;
	padding-bottom: 0.8rem;
	border-bottom: 1px solid var(--sn03-border-soft);
}

.sn03-evidence-table > p:last-child {
	padding-bottom: 0;
	border-bottom: 0;
}

.sn03-technology-step {
	position: relative;
	box-sizing: border-box;
	height: 100%;
	padding: 1.5rem;
	border: 1px solid rgba(59, 143, 217, 0.22);
	border-radius: var(--sn03-radius-sm);
	background: var(--sn03-accent-sky);
}

.sn03-technology-step p {
	margin: 0;
}

.sn03-technology-step strong {
	display: block;
	margin-bottom: 0.5rem;
	color: var(--sn03-primary-blue);
	font-family: var(--wp--preset--font-family--noto-sans-jp);
}

.sn03-trademark-note,
.sn03-spec-footnote,
.sn03-comparison-note {
	color: var(--sn03-dark-gray);
	font-size: 0.875rem;
}

/* ================================================================
   SN-O3 LP: Sections 10, 11, 14

   Unitone owns the section, grid, and responsive layout. These rules
   distinguish operational choices and keep specification data legible.
   ================================================================ */

#sn03-comparison,
#sn03-key-specs,
#sn03-detailed-specs {
	scroll-margin-top: 2rem;
}

.sn03-comparison-card,
.sn03-key-spec-card,
.sn03-caution-card {
	box-sizing: border-box;
	height: 100%;
	padding: clamp(1.4rem, 3vw, 2.15rem);
	border: 1px solid var(--sn03-border-soft);
	border-radius: var(--sn03-radius-lg);
	background: #fff;
	color: var(--sn03-dark-navy);
}

.sn03-comparison-card--sn03 {
	border-color: rgba(59, 143, 217, 0.55);
	box-shadow: var(--sn03-shadow-soft);
}

.sn03-comparison-card ul,
.sn03-caution-card ul {
	padding-left: 1.25rem;
}

.sn03-comparison-card li + li,
.sn03-caution-card li + li {
	margin-top: 0.7rem;
}

.sn03-key-spec-card {
	border-color: rgba(142, 210, 255, 0.2);
	background: rgba(255, 255, 255, 0.97);
}

.sn03-key-spec-card h3 {
	font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.sn03-key-spec-value {
	margin-bottom: 0.75rem;
	color: var(--sn03-primary-blue);
	font-family: var(--wp--preset--font-family--noto-sans-jp);
	font-size: clamp(1.75rem, 4vw, 2.5rem);
	font-weight: 700;
	letter-spacing: -0.04em;
	line-height: 1;
}

.sn03-spec-table-wrap {
	overflow-x: auto;
	border: 1px solid var(--sn03-border-soft);
	border-radius: var(--sn03-radius-sm);
}

.sn03-spec-table-wrap table {
	min-width: 42rem;
	margin: 0;
	border-collapse: collapse;
}

.sn03-spec-table-wrap th,
.sn03-spec-table-wrap td {
	padding: 0.9rem 1rem;
	border-color: var(--sn03-border-soft);
	text-align: left;
	vertical-align: top;
}

.sn03-spec-table-wrap thead th {
	background: var(--sn03-dark-navy);
	color: #fff;
}
.sn03-spec-table-wrap thead th:last-child{
	background: var(--wp--preset--color--unitone-accent);
}

.sn03-spec-table-wrap tbody th {
	width: 14rem;
	background: var(--sn03-light-gray);
}

.sn03-disinfectant-table-wrap table {
	min-width: 70rem;
}

.sn03-disinfectant-table-wrap thead th:first-child,
.sn03-disinfectant-table-wrap tbody th {
	width: 10rem;
	min-width: 10rem;
}

.sn03-disinfectant-table-wrap thead th:not(:first-child) {
	min-width: 14rem;
}

.sn03-caution-card {
	border-top: 4px solid var(--sn03-primary-blue);
}

@media (hover: hover) {
	.sn03-worry-card:hover,
	.sn03-reason-card:hover,
	.sn03-use-case-card:hover,
	.sn03-comparison-card:hover,
	.sn03-key-spec-card:hover {
		border-color: rgba(59, 143, 217, 0.38);
		box-shadow: var(--sn03-shadow-soft);
	}
}

@media (max-width: 767px) {
	#sn03-hero,
	#sn03-worries,
	#sn03-ozone-water,
	#sn03-disinfectant-comparison,
	#sn03-reasons,
	#sn03-steps,
	#sn03-use-cases,
	#sn03-evidence,
	#sn03-aqua-ozone,
	#sn03-comparison,
	#sn03-key-specs,
	#sn03-detailed-specs {
		padding-block: clamp(3.5rem, 14vw, 5rem);
	}

	.sn03-spec-chip {
		padding: 0.85rem 0.35rem;
	}

	.sn03-spec-chip strong {
		font-size: 0.9rem;
	}

	/* WordPressのブロック追加CSSはメディアクエリを処理しないため、個別補正のみ残す。 */
	#sn03-hero h1 {
		font-size: 2rem;
	}

	#sn03-hero .wp-block-buttons {
		align-items: stretch;
		flex-direction: column;
	}

	#sn03-hero .wp-block-button,
	#sn03-hero .wp-block-button__link {
		box-sizing: border-box;
		width: 100%;
	}

	.sn03-image-placeholder {
		min-height: 15rem;
	}

	.sn03-use-case-card,
	.sn03-evidence-card,
	.sn03-evidence-note {
		padding: 1.25rem;
	}

	.sn03-evidence-table > p {
		grid-template-columns: 1fr;
		gap: 0.25rem;
	}

	.sn03-comparison-card,
	.sn03-key-spec-card,
	.sn03-caution-card {
		padding: 1.25rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	.wp-block-button__link,
	.sn03-worry-card,
	.sn03-reason-card,
	.sn03-use-case-card,
	.sn03-comparison-card,
	.sn03-key-spec-card {
		transition: none;
	}
}