@charset "UTF-8";

/* ==========================================================================
   共通変数定義
   ========================================================================== */
:root {
	/* カラーパレット */
	--color-black: #000000;
	--color-dark: #111111;
	--color-gold: #D4AF37;
	--color-gold-light: #F7E7CE;
	--color-white: #FFFFFF;
	--color-text: #E0E0E0;
	
	/* タイポグラフィ */
	--font-main: 'Inter', 'Noto Sans JP', sans-serif;
	--font-serif: 'Noto Serif JP', serif;
}

/* ==========================================================================
   リセットCSS & 全体設定
   ========================================================================== */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

body {
	font-family: var(--font-main);
	color: var(--color-text);
	background-color: var(--color-black);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

a {
	color: var(--color-gold);
	text-decoration: none;
	transition: color 0.3s ease;
}

a:hover {
	color: var(--color-gold-light);
}

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

ul {
	list-style: none;
}

/* ==========================================================================
   ヘッダー
   ========================================================================== */
header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	padding: 20px 40px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	z-index: 100;
	background-color: rgba(0, 0, 0, 0.8);
	backdrop-filter: blur(10px);
	transition: all 0.3s ease;
}

header.is-scrolled {
	background-color: rgba(0, 0, 0, 0.9);
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.header-logo img {
	height: 35px;
	width: auto;
	display: block;
}

nav {
	display: flex;
	align-items: center;
}

nav ul {
	display: flex;
	gap: 30px;
	margin-right: 30px;
}

nav a {
	color: var(--color-white);
	font-weight: 500;
	font-size: 14px;
	letter-spacing: 0.1em;
	position: relative;
}

nav a::after {
	content: '';
	position: absolute;
	bottom: -4px;
	left: 0;
	width: 0;
	height: 1px;
	background-color: var(--color-gold);
	transition: width 0.3s ease;
}

nav a:hover::after {
	width: 100%;
}

.btn-contact {
	background: linear-gradient(135deg, var(--color-gold) 0%, #B8860B 100%);
	color: var(--color-black);
	padding: 12px 24px;
	border-radius: 30px;
	font-weight: bold;
	font-size: 14px;
	display: inline-block;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-contact:hover {
	color: var(--color-black);
	transform: translateY(-2px);
	box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
}

.hamburger {
	display: none; /* PCでは非表示 */
}

/* ==========================================================================
   フッター
   ========================================================================== */
footer {
	background-color: var(--color-dark);
	padding: 80px 40px 40px;
	border-top: 1px solid rgba(212, 175, 55, 0.2);
}

footer > address {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	font-style: normal;
	flex-wrap: wrap;
	gap: 40px;
}

.footer-info h2 {
	font-size: 24px;
	color: var(--color-gold);
	margin-bottom: 20px;
}

.footer-logo {
	margin-bottom: 20px;
	display: block;
	height: 45px;
	width: auto;
}

.footer-info p {
	margin-bottom: 10px;
}

.footer-links {
	display: flex;
	gap: 60px;
}

.footer-links h3 {
	color: var(--color-white);
	font-size: 16px;
	margin-bottom: 20px;
}

.footer-links li {
	margin-bottom: 12px;
}

.footer-links a {
	color: #AAAAAA;
}

.footer-links a:hover {
	color: var(--color-gold);
}

.sns-links {
	display: flex;
	gap: 15px;
	margin-top: 20px;
}

.sns-links a {
	display: block;
	width: 40px;
	height: 40px;
	background-color: rgba(255, 255, 255, 0.1);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background-color 0.3s ease;
}

.sns-links a:hover {
	background-color: var(--color-gold);
}

.copyright {
	text-align: center;
	margin-top: 60px;
	padding-top: 20px;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	color: #666666;
	font-size: 12px;
}

/* ==========================================================================
   レスポンシブ (タブレット・スマホ共通 ハンバーガーメニュー)
   ========================================================================== */
@media screen and (max-width: 1200px) {
	header {
		padding: 15px 20px;
	}
	
	.hamburger {
		display: flex;
		flex-direction: column;
		justify-content: space-between;
		width: 30px;
		height: 20px;
		background: transparent;
		border: none;
		cursor: pointer;
		z-index: 1000;
	}
	
	.hamburger span {
		display: block;
		width: 100%;
		height: 2px;
		background-color: var(--color-white);
		transition: all 0.3s ease;
	}
	
	.hamburger.is-active span:nth-child(1) {
		transform: translateY(9px) rotate(45deg);
	}
	.hamburger.is-active span:nth-child(2) {
		opacity: 0;
	}
	.hamburger.is-active span:nth-child(3) {
		transform: translateY(-9px) rotate(-45deg);
	}
	
	nav {
		position: fixed;
		top: 0;
		right: -100%;
		width: 100%;
		height: 100vh;
		background-color: rgba(0, 0, 0, 0.95);
		flex-direction: column;
		justify-content: center;
		transition: right 0.3s ease;
		z-index: 900;
	}
	
	nav.is-active {
		right: 0;
	}
	
	nav ul {
		flex-direction: column;
		margin-right: 0;
		margin-bottom: 40px;
		align-items: center;
		gap: 30px;
	}
	
	nav a {
		font-size: 18px;
	}
}

/* ==========================================================================
   レスポンシブ (スマートフォン専用調整)
   ========================================================================== */
@media screen and (max-width: 600px) {
	header {
		padding: 10px 15px;
	}
	footer {
		padding: 40px 20px 20px;
	}
	footer > address {
		flex-direction: column;
	}
	.footer-links {
		flex-direction: column;
		gap: 30px;
	}
}