@charset "UTF-8";

:root {
	--header-h: 76px;
	--green-600: #2E9E6B;
	--green-800: #1B7A50;
	--ink: #222222;
	--ink-soft: #555555;
	--line: #F2F2F2;
	--stone: #FAFAF9;
	--white: #FFFFFF;
	--sans: "Hiragino Sans", "Yu Gothic Medium", "Yu Gothic", "Noto Sans JP", -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 112.5%; }
html, body { margin: 0; padding: 0; }
body {
	font-family: var(--sans);
	color: var(--ink);
	background: var(--white);
	line-height: 1.85;
	-webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; }

@media (prefers-reduced-motion: reduce) {
	* { animation-duration: .001ms !important; transition-duration: .001ms !important; }
	html { scroll-behavior: auto; }
}

/* ---- Header / top-bar nav ---- */
.header {
	position: fixed;
	top: 0; left: 0; right: 0;
	height: var(--header-h);
	background: rgba(255, 255, 255, 0.97);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--line);
	z-index: 1000;
}
.header_inner {
	max-width: 1200px;
	margin: 0 auto;
	height: 100%;
	display: flex;
	align-items: center;
	gap: 28px;
	padding: 0 32px;
}
.header_logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.header_logo_pic img { height: 36px; width: auto; }
.header_logo p { font-size: .72rem; color: var(--ink-soft); letter-spacing: .04em; white-space: nowrap; }

.header_navi { flex: 1; display: flex; align-items: center; justify-content: flex-end; gap: 4px; }
.header_navi_list { display: flex; align-items: center; gap: 2px; }
.header_navi_list_link,
.header_navi_news_link,
.header_navi_newbies_link {
	display: block;
	padding: 10px 14px;
	font-size: .85rem;
	font-weight: 500;
	color: var(--ink);
	border-radius: 4px;
	white-space: nowrap;
	transition: color .15s, background .15s;
}
.header_navi_list_link:hover,
.header_navi_news_link:hover,
.header_navi_newbies_link:hover { color: var(--green-800); background: #EEF7F1; }
.header_navi_newbies_link.is-current { color: var(--green-800); background: #EEF7F1; font-weight: 700; }

.header_navi_recruit { position: relative; margin: 0 4px; }
.header_navi_recruit_link {
	display: flex; align-items: center; gap: 6px;
	padding: 10px 16px; background: var(--green-600); color: #fff;
	border-radius: 100px; font-size: .85rem; font-weight: 700; white-space: nowrap;
}
.header_navi_recruit_link::after { content: '▾'; font-size: .7em; opacity: .85; margin-left: 2px; }

.dropdown-menu {
	display: none;
	position: absolute; top: calc(100% + 8px); right: 0;
	background: #fff; border: 1px solid var(--line); border-radius: 8px;
	box-shadow: 0 12px 28px rgba(20, 20, 20, 0.12);
	min-width: 260px; padding: 6px; z-index: 1001;
}
.header_navi_recruit:hover .dropdown-menu,
.header_navi_recruit:focus-within .dropdown-menu { display: block; }
.dropdown-menu li a {
	display: flex; align-items: center; justify-content: space-between; gap: 10px;
	padding: 9px 12px; font-size: .82rem; border-radius: 5px; color: var(--ink);
	white-space: nowrap;
}
.dropdown-menu li a:hover { background: var(--stone); color: var(--green-800); }
.dropdown-menu .external-icon { width: 11px; height: 11px; opacity: .55; }

/* ---- Mobile hamburger nav ---- */
.header_menu-trigger {
	display: none;
	flex-direction: column; justify-content: center; gap: 5px;
	width: 40px; height: 40px;
	background: none; border: none; padding: 0; cursor: pointer;
}
.header_menu-trigger .bar {
	display: block; width: 22px; height: 2px; margin: 0 auto;
	background: var(--ink); transition: transform .2s, opacity .2s;
}
.header_menu-trigger.is-open .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header_menu-trigger.is-open .bar:nth-child(2) { opacity: 0; }
.header_menu-trigger.is-open .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
	display: none;
	position: fixed; top: var(--header-h); left: 0; right: 0;
	background: #fff; border-bottom: 1px solid var(--line);
	max-height: 0; overflow: hidden; transition: max-height .25s ease;
	z-index: 999;
}
.mobile-menu.is-open { display: block; max-height: 80vh; overflow-y: auto; }
.mobile-menu ul { padding: 8px 0; }
.mobile-menu li a { display: block; padding: 14px 24px; font-size: .9rem; border-bottom: 1px solid var(--line); }

@media (max-width: 767px) {
	.header_inner { padding: 0 16px; }
	.header_navi { display: none; }
	.header_menu-trigger { display: flex; }
}

/* ---- Page shell ---- */
#contents {
	margin-top: var(--header-h);
}

/* ---- Breadcrumbs ---- */
.breadcrumb {
	max-width: 1200px; margin: 0 auto; padding: 14px 32px;
	font-size: .78rem; color: var(--ink-soft); display: flex; flex-wrap: wrap; gap: .4rem; align-items: center;
}
.breadcrumb a { color: var(--ink-soft); }
.breadcrumb a:hover { color: var(--green-800); }
.breadcrumb .sep { color: #ccc; }
.breadcrumb .is-current { color: var(--ink); }

/* ---- Footer ---- */
#page_top { text-align: center; padding: 10px 0; }
.footer { position: relative; width: 100%; border-top: 1px solid var(--line); }
.footer_btn {
	display: flex; justify-content: center; align-items: center;
	gap: 2.2rem; flex-wrap: wrap; padding: 1.6rem 1rem; font-size: .82rem;
}
.footer_btn_link { color: var(--ink-soft); }
.footer_btn_link:hover { color: var(--green-800); }
.footer_recruit {
	display: flex; justify-content: center; align-items: center;
	gap: 1.8rem; flex-wrap: wrap; padding: 1.2rem 1rem; font-size: .8rem;
	background: #000;
}
.footer_recruit_link { display: flex; align-items: center; gap: 4px; color: #fff; }
.footer_recruit_link:hover { color: var(--green-600); }
.footer_recruit_link .external-icon { width: 10px; height: 10px; opacity: .8; }
.footer_copyright { padding: .6rem 0; background: #000; text-align: center; }
.footer_copyright p { font-size: .78rem; color: #fff; margin: 0; }