/*
Theme Name: MailOS Corporate
Theme URI: https://mailos.co.jp
Author: MailOS Inc.
Description: MailOS株式会社の公式コーポレートサイトテーマ
Version: 1.0.0
Text Domain: mailos
*/

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

:root {
	--color-bg: #0a1628;
	--color-bg-light: #0f1f38;
	--color-bg-card: #132240;
	--color-accent: #00a8ff;
	--color-accent-hover: #0090dd;
	--color-white: #ffffff;
	--color-gray: #a0aec0;
	--color-border: rgba(255, 255, 255, 0.08);
	--font-main: 'Inter', 'Noto Sans JP', sans-serif;
	--max-width: 1200px;
	--section-padding: 100px 0;
	--transition: 0.3s ease;
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: var(--font-main);
	background-color: var(--color-bg);
	color: var(--color-white);
	line-height: 1.8;
	font-size: 16px;
	-webkit-font-smoothing: antialiased;
}

a {
	color: var(--color-accent);
	text-decoration: none;
	transition: color var(--transition);
}

a:hover {
	color: var(--color-accent-hover);
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

/* ===== Utility ===== */
.container {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
}

.section-title {
	font-size: 2rem;
	font-weight: 700;
	text-align: center;
	margin-bottom: 16px;
	letter-spacing: 0.02em;
}

.section-subtitle {
	text-align: center;
	color: var(--color-gray);
	margin-bottom: 60px;
	font-size: 0.95rem;
}

/* ===== Fade-in Animation ===== */
.fade-in {
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.is-visible {
	opacity: 1;
	transform: translateY(0);
}

/* ===== Header ===== */
.site-header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	background: rgba(10, 22, 40, 0.92);
	backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--color-border);
}

.site-header .container {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 72px;
}

.site-logo {
	font-size: 1.5rem;
	font-weight: 800;
	color: var(--color-white);
	letter-spacing: 0.04em;
}

.site-logo span {
	color: var(--color-accent);
}

/* Navigation */
.primary-nav ul {
	list-style: none;
	display: flex;
	gap: 32px;
}

.primary-nav a {
	color: var(--color-gray);
	font-size: 0.9rem;
	font-weight: 500;
	transition: color var(--transition);
	position: relative;
}

.primary-nav a::after {
	content: '';
	position: absolute;
	bottom: -4px;
	left: 0;
	width: 0;
	height: 2px;
	background: var(--color-accent);
	transition: width var(--transition);
}

.primary-nav a:hover,
.primary-nav .current-menu-item a {
	color: var(--color-white);
}

.primary-nav a:hover::after,
.primary-nav .current-menu-item a::after {
	width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
	display: none;
	background: none;
	border: none;
	cursor: pointer;
	padding: 8px;
}

.menu-toggle span {
	display: block;
	width: 24px;
	height: 2px;
	background: var(--color-white);
	margin: 5px 0;
	transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: 120px 24px 80px;
	background: linear-gradient(160deg, var(--color-bg) 0%, #0d1e36 50%, #0a1628 100%);
	position: relative;
	overflow: hidden;
}

.hero::before {
	content: '';
	position: absolute;
	top: -50%;
	left: -50%;
	width: 200%;
	height: 200%;
	background: radial-gradient(circle at 30% 40%, rgba(0, 168, 255, 0.06) 0%, transparent 50%),
	            radial-gradient(circle at 70% 60%, rgba(0, 168, 255, 0.04) 0%, transparent 50%);
	animation: heroGlow 15s ease-in-out infinite alternate;
}

@keyframes heroGlow {
	0% { transform: translate(0, 0); }
	100% { transform: translate(-3%, -3%); }
}

.hero-content {
	position: relative;
	z-index: 1;
	max-width: 800px;
}

.hero-title {
	font-size: 3.2rem;
	font-weight: 800;
	line-height: 1.3;
	margin-bottom: 24px;
	letter-spacing: 0.02em;
}

.hero-title .accent {
	color: var(--color-accent);
}

.hero-description {
	font-size: 1.1rem;
	color: var(--color-gray);
	margin-bottom: 40px;
	line-height: 1.8;
}

.btn {
	display: inline-block;
	padding: 16px 40px;
	border-radius: 6px;
	font-weight: 600;
	font-size: 0.95rem;
	transition: all var(--transition);
	cursor: pointer;
	border: none;
	font-family: var(--font-main);
}

.btn-primary {
	background: var(--color-accent);
	color: var(--color-white);
}

.btn-primary:hover {
	background: var(--color-accent-hover);
	color: var(--color-white);
	transform: translateY(-2px);
	box-shadow: 0 8px 30px rgba(0, 168, 255, 0.3);
}

.btn-outline {
	background: transparent;
	color: var(--color-accent);
	border: 2px solid var(--color-accent);
}

.btn-outline:hover {
	background: var(--color-accent);
	color: var(--color-white);
}

/* ===== Services Section (Top Page) ===== */
.section {
	padding: var(--section-padding);
}

.section-dark {
	background: var(--color-bg-light);
}

.services-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 32px;
}

.service-card {
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: 12px;
	padding: 40px 32px;
	transition: all var(--transition);
}

.service-card:hover {
	transform: translateY(-4px);
	border-color: rgba(0, 168, 255, 0.3);
	box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-card .icon {
	width: 56px;
	height: 56px;
	background: rgba(0, 168, 255, 0.1);
	border-radius: 12px;
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 24px;
	font-size: 1.6rem;
}

.service-card h3 {
	font-size: 1.2rem;
	font-weight: 700;
	margin-bottom: 12px;
}

.service-card p {
	color: var(--color-gray);
	font-size: 0.9rem;
	line-height: 1.7;
}

/* ===== About Preview (Top Page) ===== */
.about-preview {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}

.about-preview-text h3 {
	font-size: 1.8rem;
	font-weight: 700;
	margin-bottom: 20px;
}

.about-preview-text p {
	color: var(--color-gray);
	margin-bottom: 24px;
	line-height: 1.8;
}

.about-stats {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 24px;
}

.stat-item {
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: 12px;
	padding: 32px 24px;
	text-align: center;
}

.stat-number {
	font-size: 2.4rem;
	font-weight: 800;
	color: var(--color-accent);
	display: block;
	margin-bottom: 8px;
}

.stat-label {
	color: var(--color-gray);
	font-size: 0.85rem;
}

/* ===== Page Header ===== */
.page-header {
	padding: 140px 0 60px;
	text-align: center;
	background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
}

.page-header h1 {
	font-size: 2.4rem;
	font-weight: 800;
	margin-bottom: 12px;
}

.page-header p {
	color: var(--color-gray);
}

/* ===== About Table ===== */
.about-table {
	width: 100%;
	border-collapse: collapse;
	margin: 40px 0;
}

.about-table th,
.about-table td {
	padding: 20px 24px;
	text-align: left;
	border-bottom: 1px solid var(--color-border);
}

.about-table th {
	width: 200px;
	color: var(--color-accent);
	font-weight: 600;
	font-size: 0.95rem;
	white-space: nowrap;
}

.about-table td {
	color: var(--color-gray);
}

/* ===== Services Page ===== */
.services-page-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 32px;
}

.services-page-grid .service-card {
	padding: 48px 36px;
}

.services-page-grid .service-card h3 {
	font-size: 1.3rem;
}

/* ===== Access Page ===== */
.access-info {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 48px;
	margin-top: 40px;
}

.access-details dl {
	margin: 0;
}

.access-details dt {
	color: var(--color-accent);
	font-weight: 600;
	font-size: 0.9rem;
	margin-bottom: 4px;
	margin-top: 24px;
}

.access-details dt:first-child {
	margin-top: 0;
}

.access-details dd {
	color: var(--color-gray);
	margin-left: 0;
}

.map-container {
	border-radius: 12px;
	overflow: hidden;
	border: 1px solid var(--color-border);
}

.map-container iframe {
	width: 100%;
	height: 100%;
	min-height: 400px;
	border: 0;
}

/* ===== Contact Form ===== */
.contact-form {
	max-width: 680px;
	margin: 40px auto 0;
}

.form-group {
	margin-bottom: 24px;
}

.form-group label {
	display: block;
	font-weight: 600;
	font-size: 0.9rem;
	margin-bottom: 8px;
	color: var(--color-white);
}

.form-group label .required {
	color: #ff4757;
	margin-left: 4px;
	font-size: 0.8rem;
}

.form-group input,
.form-group textarea {
	width: 100%;
	padding: 14px 18px;
	background: var(--color-bg-card);
	border: 1px solid var(--color-border);
	border-radius: 8px;
	color: var(--color-white);
	font-family: var(--font-main);
	font-size: 0.95rem;
	transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
	outline: none;
	border-color: var(--color-accent);
}

.form-group textarea {
	min-height: 180px;
	resize: vertical;
}

.form-message {
	padding: 16px 20px;
	border-radius: 8px;
	margin-bottom: 24px;
	font-size: 0.9rem;
	display: none;
}

.form-message.success {
	background: rgba(0, 200, 83, 0.1);
	border: 1px solid rgba(0, 200, 83, 0.3);
	color: #00c853;
	display: block;
}

.form-message.error {
	background: rgba(255, 71, 87, 0.1);
	border: 1px solid rgba(255, 71, 87, 0.3);
	color: #ff4757;
	display: block;
}

.btn-submit {
	width: 100%;
	padding: 16px;
	font-size: 1rem;
}

.btn-submit:disabled {
	opacity: 0.6;
	cursor: not-allowed;
}

/* ===== Footer ===== */
.site-footer {
	background: var(--color-bg-light);
	border-top: 1px solid var(--color-border);
	padding: 60px 0 30px;
}

.footer-content {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr;
	gap: 48px;
	margin-bottom: 40px;
}

.footer-brand .site-logo {
	margin-bottom: 16px;
	display: inline-block;
}

.footer-brand p {
	color: var(--color-gray);
	font-size: 0.85rem;
	line-height: 1.7;
}

.footer-nav h4,
.footer-contact h4 {
	font-size: 0.9rem;
	font-weight: 700;
	margin-bottom: 20px;
	color: var(--color-white);
}

.footer-nav ul {
	list-style: none;
}

.footer-nav li {
	margin-bottom: 10px;
}

.footer-nav a {
	color: var(--color-gray);
	font-size: 0.85rem;
}

.footer-nav a:hover {
	color: var(--color-white);
}

.footer-contact p {
	color: var(--color-gray);
	font-size: 0.85rem;
	margin-bottom: 8px;
}

.footer-bottom {
	border-top: 1px solid var(--color-border);
	padding-top: 24px;
	text-align: center;
	color: var(--color-gray);
	font-size: 0.8rem;
}

/* ===== Generic Page Content ===== */
.page-content {
	padding: 40px 0 100px;
}

.page-content h2 {
	font-size: 1.6rem;
	margin-bottom: 16px;
}

.page-content p {
	color: var(--color-gray);
	margin-bottom: 16px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
	.services-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.about-preview {
		grid-template-columns: 1fr;
		gap: 40px;
	}

	.footer-content {
		grid-template-columns: 1fr 1fr;
	}
}

@media (max-width: 768px) {
	.menu-toggle {
		display: block;
	}

	.primary-nav {
		position: fixed;
		top: 72px;
		left: 0;
		width: 100%;
		background: rgba(10, 22, 40, 0.98);
		backdrop-filter: blur(12px);
		padding: 24px;
		transform: translateY(-120%);
		transition: transform var(--transition);
		border-bottom: 1px solid var(--color-border);
	}

	.primary-nav.is-open {
		transform: translateY(0);
	}

	.primary-nav ul {
		flex-direction: column;
		gap: 20px;
	}

	.hero-title {
		font-size: 2rem;
	}

	.hero-description {
		font-size: 0.95rem;
	}

	.services-grid,
	.services-page-grid {
		grid-template-columns: 1fr;
	}

	.access-info {
		grid-template-columns: 1fr;
	}

	.about-table th {
		width: 120px;
	}

	.footer-content {
		grid-template-columns: 1fr;
		gap: 32px;
	}

	.section-title {
		font-size: 1.6rem;
	}

	:root {
		--section-padding: 60px 0;
	}
}