/* ========================================
   REGION PAGE
======================================== */

.region-page {
	background:
		radial-gradient(circle at top left, rgba(141, 188, 255, 0.18), transparent 28%),
		radial-gradient(circle at bottom right, rgba(122, 164, 255, 0.14), transparent 26%),
		linear-gradient(180deg, #f6faff 0%, #edf4ff 48%, #f9fbff 100%);
	padding-bottom: 96px;
}

.region-page-inner {
	max-width: 1180px;
	margin: 0 auto;
	padding: 0 20px;
}

.region-hero {
	padding: 0 0 44px;
}

.region-hero-shell {
	position: relative;
	display: block;
	min-height: 720px;
	background:
		radial-gradient(circle at top left, rgba(112, 170, 255, 0.22), transparent 28%),
		linear-gradient(180deg, #dbe9ff 0%, #edf4ff 100%);
	box-shadow: 0 28px 70px rgba(58, 98, 165, 0.12);
	overflow: hidden;
}

.region-hero-shell::before {
	content: "";
	position: absolute;
	inset: 0;
	background:
		linear-gradient(90deg, rgba(13, 27, 50, 0.78) 0%, rgba(13, 27, 50, 0.56) 27%, rgba(13, 27, 50, 0.2) 48%, rgba(13, 27, 50, 0.06) 66%, rgba(13, 27, 50, 0.18) 100%);
	pointer-events: none;
	z-index: 1;
}

.region-hero-shell > .region-page-inner {
	position: relative;
	z-index: 2;
	display: grid;
	grid-template-columns: minmax(0, 560px) minmax(0, 1fr);
	align-items: end;
	min-height: 720px;
	padding-top: 88px;
	padding-bottom: 66px;
}

.region-hero-media {
	position: absolute;
	inset: 0;
	display: block;
}

.region-hero-media-panel {
	position: absolute;
	inset: 0;
	background-repeat: no-repeat;
	background-size: cover;
	background-position: center center;
	background-image: var(--region-hero-image);
	opacity: 0;
	transform: scale(1.04);
	animation: regionHeroImageCycle 18s linear infinite;
	will-change: opacity, transform;
}

.region-hero-media-panel::after {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(5, 15, 32, 0.1) 100%);
}

.region-hero-media-panel.is-first {
	background-position: center 34%;
	animation-delay: 0s;
}

.region-hero-media-panel.is-second {
	background-position: center 42%;
	animation-delay: 6s;
}

.region-hero-media-panel.is-third {
	background-position: center 44%;
	animation-delay: 12s;
}

.region-hero-overlay {
	position: absolute;
	inset: 0;
	z-index: 1;
	pointer-events: none;
	background:
		radial-gradient(circle at 74% 22%, rgba(255, 255, 255, 0.22), transparent 20%),
		radial-gradient(circle at 86% 74%, rgba(255, 198, 134, 0.18), transparent 18%);
}

.region-hero-overlay::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
	background-size: 34px 34px;
	opacity: 0.72;
	mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.55) 62%, transparent 100%);
}

.region-hero-kicker {
	margin: 0 0 14px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.26em;
	color: rgba(217, 234, 255, 0.88);
}

.region-hero-title {
	margin: 0;
	font-size: clamp(2.25rem, 4.8vw, 4.3rem);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: 0.02em;
	color: #ffffff;
	text-shadow: 0 18px 40px rgba(7, 14, 27, 0.2);
}

.region-hero-title span {
	display: block;
	margin-top: 8px;
}

.region-hero-lead {
	max-width: 640px;
	margin: 22px 0 0;
	font-size: 15px;
	line-height: 2;
	color: rgba(232, 241, 255, 0.92);
}

.region-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 30px;
}

.region-hero-action {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 54px;
	padding: 0 24px;
	border-radius: 999px;
	font-size: 14px;
	font-weight: 700;
	text-decoration: none;
	letter-spacing: 0.04em;
	transition: all 0.3s;
	position: relative;
	overflow: hidden;
}

.region-hero-action.is-primary {
	background: linear-gradient(135deg, #4c84dc 0%, #295cb2 100%);
	color: #fff;
	box-shadow: 0 18px 30px rgba(57, 95, 166, 0.2);
}

.region-hero-action.is-secondary {
	border: 1px solid rgba(211, 228, 255, 0.22);
	background: rgba(255, 255, 255, 0.16);
	color: #fff;
	backdrop-filter: blur(10px);
}

.region-hero-action:hover {
	background-position: 100% 0;
	box-shadow: 0 20px 34px rgba(57, 95, 166, 0.16);
}

.region-hero-action.is-primary:hover {
	color: #fff;
	filter: brightness(1.04);
}

.region-hero-action.is-secondary:hover {
	color: #fff;
	background: rgba(255, 255, 255, 0.22);
	border-color: rgba(223, 236, 255, 0.34);
}

.region-hero-action::after {
	content: "";
	position: absolute;
	top: 0;
	left: -120%;
	width: 60%;
	height: 100%;
	background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0));
	transform: skewX(-22deg);
	transition: left 0.45s ease;
	pointer-events: none;
}

.region-hero-action:hover::after {
	left: 135%;
}

.region-hero-stats {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 14px;
	margin-top: 28px;
	max-width: 680px;
}

.region-hero-stat {
	padding: 18px 18px 16px;
	border: 1px solid rgba(217, 233, 255, 0.16);
	border-radius: 24px;
	background: rgba(255, 255, 255, 0.14);
	backdrop-filter: blur(10px);
}

.region-hero-stat-label {
	display: block;
	margin-bottom: 8px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.16em;
	color: rgba(217, 233, 255, 0.82);
}

.region-hero-stat strong {
	display: block;
	font-size: clamp(1.65rem, 2.2vw, 2.2rem);
	font-weight: 800;
	line-height: 1;
	color: #ffffff;
}

.region-hero-stat small {
	margin-left: 4px;
	font-size: 0.48em;
	font-weight: 700;
	color: rgba(217, 233, 255, 0.82);
}

.region-hero-spacer {
	min-height: 1px;
}

@keyframes regionHeroImageCycle {
	0% {
		opacity: 1;
		transform: scale(1.04);
	}
	28% {
		opacity: 1;
		transform: scale(1.015);
	}
	36% {
		opacity: 0.72;
		transform: scale(1);
	}
	44% {
		opacity: 0;
		transform: scale(0.995);
	}
	100% {
		opacity: 0;
		transform: scale(0.995);
	}
}

.region-map,
.region-search,
.region-pickup,
.region-directory,
.region-news,
.region-intro {
	padding: 64px 0;
}

.region-section-header,
.region-directory-heading {
	margin-bottom: 30px;
	text-align: center;
}

.region-section-kicker {
	display: block;
	margin: 0 0 12px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.28em;
	color: #6a8fc8;
	text-align: center;
}

.section-title {
	margin: 0 0 14px;
	font-size: clamp(1.65rem, 2.5vw, 2.3rem);
	font-weight: 800;
	letter-spacing: 0.03em;
	color: #213b68;
}

.section-desc {
	max-width: 720px;
	margin: 0 auto;
	font-size: 14px;
	line-height: 1.9;
	color: #6381ac;
}


/* ========================================
   MAP
======================================== */

.region-map-container {
	padding: 32px 24px;
	border: 1px solid rgba(126, 158, 212, 0.22);
	border-radius: 32px;
	background: #f2f5fa;
	box-shadow:
		0 22px 60px rgba(61, 101, 169, 0.1),
		inset 0 1px 0 rgba(255, 255, 255, 0.72);
	backdrop-filter: blur(16px);
	position: relative;
	overflow: hidden;
}

.region-map-container::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(rgba(113, 151, 217, 0.08) 1px, transparent 1px),
		linear-gradient(90deg, rgba(113, 151, 217, 0.08) 1px, transparent 1px);
	background-size: 28px 28px;
	mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.88) 0%, transparent 92%);
	pointer-events: none;
}

.region-map-container > * {
	position: relative;
	z-index: 1;
}


/* ========================================
   SEARCH
======================================== */

.region-search-panel {
	padding: 28px;
	border: 1px solid rgba(126, 158, 212, 0.2);
	border-radius: 30px;
	background:
		linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(245, 250, 255, 0.96) 100%);
	box-shadow: 0 24px 60px rgba(63, 100, 161, 0.1);
}

.region-search-form {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 132px;
	gap: 14px;
	align-items: center;
}

.region-search-input,
.region-search-button {
	min-height: 58px;
	border-radius: 18px;
	font-size: 15px;
}

.region-search-input {
	width: 100%;
	padding: 0 20px;
	border: 1px solid rgba(121, 152, 206, 0.22);
	background: #fff;
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
	color: #213b68;
}

.region-search-input:focus {
	border-color: rgba(83, 133, 214, 0.56);
	outline: none;
	box-shadow: 0 0 0 4px rgba(112, 153, 226, 0.14);
}

.region-search-button {
	border: none;
	background: linear-gradient(135deg, #518ae3 0%, #2f66bc 100%);
	color: #fff;
	font-weight: 700;
	letter-spacing: 0.04em;
	cursor: pointer;
	transition: all 0.3s;
}

.region-search-button:hover {
	background-position: 100% 0;
	box-shadow: 0 14px 28px rgba(59, 102, 181, 0.2);
}

.region-search-status {
	margin-top: 16px;
	font-size: 13px;
	line-height: 1.8;
	color: #6a86ad;
}

.region-search-results {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 16px;
	margin-top: 22px;
}

.region-search-result-item {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 16px 18px;
	border: 1px solid rgba(126, 158, 212, 0.18);
	border-radius: 22px;
	background: rgba(255, 255, 255, 0.9);
	box-shadow: 0 14px 28px rgba(77, 114, 176, 0.08);
	color: #213b68;
	text-decoration: none;
	transition: all 0.3s;
}

.region-search-result-item:hover {
	background: #fff;
	box-shadow: 0 18px 32px rgba(77, 114, 176, 0.14);
}

.region-search-result-icon {
	flex: 0 0 62px;
	width: 62px;
	height: 62px;
	border-radius: 50%;
	overflow: hidden;
	background: linear-gradient(135deg, #d7e6ff 0%, #bed3ff 100%);
	box-shadow: 0 10px 20px rgba(78, 113, 171, 0.14);
}

.region-search-result-icon img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.region-search-result-fallback {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 100%;
	font-size: 22px;
	font-weight: 800;
	color: #456baf;
}

.region-search-result-body {
	min-width: 0;
}

.region-search-result-title {
	margin: 0;
	font-size: 16px;
	font-weight: 800;
	line-height: 1.5;
	color: #213b68;
}

.region-search-result-meta {
	margin: 4px 0 0;
	font-size: 13px;
	line-height: 1.7;
	color: #6a86ad;
}

.region-search-empty {
	grid-column: 1 / -1;
	padding: 22px;
	border: 1px dashed rgba(126, 158, 212, 0.28);
	border-radius: 22px;
	background: rgba(255, 255, 255, 0.64);
	font-size: 14px;
	text-align: center;
	color: #6a86ad;
}


/* ========================================
   PICKUP
======================================== */

.region-pickup .top-pickup {
	margin: 0;
}


/* ========================================
   DIRECTORY
======================================== */

.region-directory-tabs,
.region-news-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	justify-content: center;
	margin-bottom: 28px;
}

.region-directory-tab,
.region-news-tab {
	min-height: 46px;
	padding: 0 18px;
	border: 1px solid rgba(126, 158, 212, 0.18);
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.78);
	color: #58739c;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 0.04em;
	cursor: pointer;
	transition: all 0.3s;
}

.region-directory-tab:hover,
.region-news-tab:hover,
.region-directory-tab.is-active,
.region-news-tab.is-active {
	border-color: transparent;
	background: linear-gradient(135deg, #4d85db 0%, #2c61b8 100%);
	color: #fff;
}

.region-directory-group,
.region-news-panel {
	display: none;
}

.region-directory-group.is-active,
.region-news-panel.is-active {
	display: block;
	animation: regionPanelReveal 0.38s ease;
}

.region-directory-prefectures {
	display: grid;
	gap: 22px;
}

.region-prefecture-card {
	padding: 24px;
	border: 1px solid rgba(126, 158, 212, 0.2);
	border-radius: 30px;
	background: rgba(255, 255, 255, 0.82);
	box-shadow: 0 24px 60px rgba(67, 105, 171, 0.1);
}

.region-prefecture-header {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 18px;
	margin-bottom: 20px;
}

.region-prefecture-title {
	margin: 0 0 6px;
	font-size: 26px;
	font-weight: 800;
	color: #213b68;
}

.region-prefecture-count {
	margin: 0;
	font-size: 14px;
	color: #6a86ad;
}

.region-prefecture-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 42px;
	padding: 0 18px;
	border-radius: 999px;
	background: linear-gradient(135deg, #4f87df 0%, #2e63ba 100%);
	color: #fff;
	font-size: 13px;
	font-weight: 700;
	text-decoration: none;
	transition: all 0.3s;
}

.region-prefecture-link:hover {
	color: #fff;
	box-shadow: 0 14px 28px rgba(64, 103, 177, 0.2);
}

.region-prefecture-vtubers {
	position: relative;
	overflow: hidden;
	--region-card-gap: 16px;
	background: transparent;
}

.region-prefecture-vtubers-track {
	display: flex;
	gap: var(--region-card-gap);
	width: 100%;
}

.region-prefecture-vtubers-track.is-compact {
	justify-content: center;
}

.region-prefecture-vtubers-track.is-looping {
	width: max-content;
	animation: regionPrefectureSlide var(--region-loop-duration, 34s) linear infinite;
}

.region-prefecture-vtuber-item {
	flex: 0 0 var(--region-card-width, 220px);
	width: var(--region-card-width, 220px);
}

.region-prefecture-vtuber-item .region-vtuber-card {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-decoration: none;
	transform: none;
	height: 100%;
	padding: 18px 16px 16px;
	border-radius: 22px;
	background: transparent;
	box-shadow: inset 0px 0px 10px 0px rgba(166, 174, 186, 0.38);
	transition: opacity 0.3s ease;
}

.region-prefecture-vtuber-item .region-vtuber-card:hover {
	opacity: 0.86;
}

.region-prefecture-vtuber-item .region-vtuber-card-icon-wrap {
	width: 72%;
	max-width: 132px;
	aspect-ratio: 1 / 1;
	margin-bottom: 14px;
	border-radius: 50%;
	overflow: hidden;
	background: transparent;
}

.region-prefecture-vtuber-item .region-vtuber-card-icon-wrap img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	border-radius: 50%;
}

.region-prefecture-vtuber-item .region-vtuber-card-name {
	width: 100%;
	margin-top: auto;
	font-size: 15px;
	font-weight: 700;
	line-height: 1.6;
	text-align: center;
	color: #213b68;
}

.region-prefecture-vtuber-item .region-vtuber-card-affiliation {
	margin-left: auto;
	margin-right: auto;
	margin-top: 8px;
	padding: 5px 10px;
	border-radius: 999px;
	background: rgba(223, 235, 255, 0.75);
	font-size: 12px;
	font-weight: 600;
	color: #6381ac;
	text-align: center;
}

@keyframes regionPrefectureSlide {
	0% {
		transform: translateX(0);
	}
	100% {
		transform: translateX(calc(-1 * var(--region-loop-distance, 0px)));
	}
}

@keyframes regionPanelReveal {
	0% {
		opacity: 0;
		transform: translateY(14px);
	}
	100% {
		opacity: 1;
		transform: translateY(0);
	}
}


/* ========================================
   NEWS
======================================== */

.region-news-list {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 20px;
}

.region-news-link {
	display: flex;
	height: 100%;
	padding: 18px;
	gap: 18px;
	border: 1px solid rgba(126, 158, 212, 0.18);
	border-radius: 28px;
	background: rgba(255, 255, 255, 0.86);
	box-shadow: 0 20px 45px rgba(66, 104, 169, 0.08);
	text-decoration: none;
	transition: all 0.3s;
}

.region-news-link:hover {
	background: #fff;
	box-shadow: 0 24px 52px rgba(66, 104, 169, 0.14);
}

.region-news-thumb {
	flex: 0 0 180px;
	width: 180px;
	aspect-ratio: 4 / 3;
	border-radius: 22px;
	overflow: hidden;
	background: linear-gradient(135deg, #d8e7ff 0%, #bed0f3 100%);
	display: flex;
	align-items: center;
	justify-content: center;
	color: #4d74ba;
	font-weight: 800;
	letter-spacing: 0.14em;
}

.region-news-thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.region-news-body {
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-width: 0;
}

.region-news-body time {
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.1em;
	color: #6f8cbb;
}

.region-news-body h3 {
	margin: 10px 0 10px;
	font-size: 18px;
	line-height: 1.55;
	color: #213b68;
}

.region-news-body p {
	margin: 0;
	font-size: 13px;
	line-height: 1.85;
	color: #6984ac;
}

.region-news-empty {
	padding: 24px;
	border: 1px dashed rgba(126, 158, 212, 0.3);
	border-radius: 26px;
	background: rgba(255, 255, 255, 0.7);
	text-align: center;
	font-size: 14px;
	color: #6a86ad;
}


/* ========================================
   INTRO
======================================== */

.region-intro .region-page-inner {
	padding-top: 34px;
	padding-bottom: 34px;
	border: 1px solid rgba(126, 158, 212, 0.18);
	border-radius: 32px;
	background: rgba(255, 255, 255, 0.74);
	box-shadow: 0 22px 52px rgba(67, 105, 171, 0.08);
}

.region-intro > .region-page-inner > p {
	max-width: 760px;
	margin: 0 auto;
	font-size: 15px;
	line-height: 2;
	text-align: center;
	color: #54719b;
}


/* ========================================
   RESPONSIVE
======================================== */

@media (max-width: 1024px) {
	.region-hero-shell {
		min-height: 640px;
	}

	.region-hero-shell > .region-page-inner {
		grid-template-columns: 1fr;
		min-height: 640px;
		align-items: end;
	}

	.region-hero-visual {
		display: none;
	}

	.region-hero-shell::before {
		background:
			linear-gradient(180deg, rgba(13, 27, 50, 0.66) 0%, rgba(13, 27, 50, 0.38) 32%, rgba(13, 27, 50, 0.54) 100%);
	}

	.region-news-list,
	.region-search-results {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 768px) {
	.region-page {
		padding-bottom: 72px;
	}

	.region-hero {
		padding: 0 0 18px;
	}

	.region-hero-media-panel {
		background-image: var(--region-hero-image-sp, var(--region-hero-image));
		background-position: center 24%;
	}

	.region-map,
	.region-search,
	.region-pickup,
	.region-directory,
	.region-news,
	.region-intro {
		padding: 48px 0;
	}

	.region-hero-shell {
		min-height: 560px;
	}

	.region-hero-title {
		font-size: 2.25rem;
	}

	.region-hero-title span {
		margin-top: 10px;
	}

	.region-hero-lead {
		font-size: 14px;
		line-height: 1.9;
	}

	.region-hero-actions,
	.region-hero-stats {
		grid-template-columns: 1fr;
	}

	.region-hero-actions {
		display: grid;
	}

	.region-hero-action {
		width: 100%;
	}

	.region-hero-stats {
		max-width: none;
	}

	.region-map-container,
	.region-search-panel,
	.region-prefecture-card,
	.region-intro .region-page-inner {
		border-radius: 24px;
	}

	.region-pickup .top-pickup {
		padding: 24px 0 40px;
	}

	.region-intro .region-page-inner {
		margin-left: 20px;
		margin-right: 20px;
		padding-left: 20px;
		padding-right: 20px;
	}

	.region-search-panel {
		padding: 20px;
	}

	.region-search-form {
		grid-template-columns: 1fr;
	}

	.region-search-input,
	.region-search-button {
		min-height: 54px;
	}

	.region-directory-tabs,
	.region-news-tabs {
		flex-wrap: nowrap;
		justify-content: flex-start;
		overflow-x: auto;
		padding-bottom: 4px;
		scrollbar-width: none;
	}

	.region-directory-tabs::-webkit-scrollbar,
	.region-news-tabs::-webkit-scrollbar {
		display: none;
	}

	.region-directory-tab,
	.region-news-tab {
		flex: 0 0 auto;
		min-height: 42px;
		padding: 0 16px;
	}

	.region-prefecture-header {
		flex-direction: column;
		align-items: flex-start;
	}

	.region-prefecture-title {
		font-size: 22px;
	}

	.region-prefecture-vtubers {
		--region-card-gap: 12px;
	}

	.region-prefecture-vtubers-track {
		gap: var(--region-card-gap);
	}

	.region-prefecture-vtubers-track.is-looping {
		animation-duration: 26s;
	}

	.region-prefecture-vtuber-item {
		flex-basis: var(--region-card-width, 168px);
		width: var(--region-card-width, 168px);
	}

	.region-prefecture-vtuber-item .region-vtuber-card {
		padding: 14px 12px 12px;
		border-radius: 18px;
	}

	.region-prefecture-vtuber-item .region-vtuber-card-icon-wrap {
		margin-bottom: 10px;
	}

	.region-prefecture-vtuber-item .region-vtuber-card-name {
		font-size: 14px;
	}

	.region-prefecture-vtuber-item .region-vtuber-card-affiliation {
		font-size: 11px;
	}

	.region-news-link {
		flex-direction: column;
		padding: 16px;
		border-radius: 22px;
	}

	.region-news-thumb {
		width: 100%;
		flex-basis: auto;
	}

	.region-news-body h3 {
		font-size: 16px;
	}

	.region-intro > .region-page-inner > p {
		font-size: 14px;
		text-align: left;
	}
}