/* ==========================================================================
   競馬で一攫千金 公式サイト - メインスタイル
   ========================================================================== */

:root {
	--color-green-dark: #06261b;
	--color-green: #0b3d2e;
	--color-green-mid: #145a32;
	--color-green-light: #1e7a45;
	--color-gold: #d4af37;
	--color-gold-light: #f2d879;
	--color-cream: #f5f0e1;
	--color-red: #a3231f;
	--color-white: #ffffff;
	--font-display: 'Oswald', 'Noto Sans JP', sans-serif;
	--font-body: 'Noto Sans JP', sans-serif;
	--header-height: 84px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
	margin: 0;
	font-family: var(--font-body);
	background: var(--color-green-dark);
	color: var(--color-cream);
	line-height: 1.8;
	overflow-x: hidden;
}

body.nav-is-locked { overflow: hidden; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

.u-sp-only { display: none; }

/* ==========================================================================
   レーストラック背景テクスチャ（共通）
   ========================================================================== */
body::before {
	content: '';
	position: fixed;
	inset: 0;
	z-index: -1;
	background:
		radial-gradient(circle at 20% 10%, rgba(212, 175, 55, 0.08), transparent 40%),
		radial-gradient(circle at 80% 60%, rgba(212, 175, 55, 0.06), transparent 45%),
		repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 80px),
		linear-gradient(180deg, var(--color-green-dark), var(--color-green) 40%, var(--color-green-dark));
	animation: track-drift 26s linear infinite;
}
@keyframes track-drift {
	from { background-position: 0 0, 0 0, 0 0, 0 0; }
	to { background-position: 0 0, 0 0, 160px 0, 0 0; }
}
@media (prefers-reduced-motion: reduce) {
	body::before { animation: none; }
}

/* ==========================================================================
   ローダー
   ========================================================================== */
.race-loader {
	position: fixed;
	inset: 0;
	z-index: 9999;
	background: var(--color-green-dark);
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
}
.race-loader__track {
	width: min(72vw, 460px);
	height: auto;
	overflow: visible;
}
.race-loader__track-base {
	fill: none;
	stroke: rgba(212, 175, 55, 0.18);
	stroke-width: 2;
}
.race-loader__track-glow {
	fill: none;
	stroke: var(--color-gold-light);
	stroke-width: 4;
	stroke-linecap: round;
	stroke-dasharray: 100 520;
	filter:
		drop-shadow(0 0 2px #fff)
		drop-shadow(0 0 10px var(--color-gold))
		drop-shadow(0 0 26px var(--color-gold))
		drop-shadow(0 0 48px rgba(212, 175, 55, 0.55));
	animation: race-loader-chase 2.2s linear infinite;
}
@keyframes race-loader-chase {
	to { stroke-dashoffset: -620; }
}

.race-loader__horse {
	position: absolute;
	font-size: 40px;
	transform: scaleX(-1);
	filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.5));
	animation: race-loader-gallop 0.5s ease-in-out infinite;
}
@keyframes race-loader-gallop {
	0%, 100% { transform: scaleX(-1) translateY(0); }
	50% { transform: scaleX(-1) translateY(-8px); }
}

.race-loader.is-hidden { opacity: 0; pointer-events: none; transition: opacity 0.5s ease; }

/* ==========================================================================
   ヘッダー
   ========================================================================== */
.site-header {
	position: fixed;
	top: 0; left: 0; right: 0;
	z-index: 500;
	height: var(--header-height);
	border-bottom: 1px solid rgba(212,175,55,0.25);
	transition: top 0.4s ease;
}
/* backdrop-filterは疑似要素に分離（.site-header自身に付けると内部のposition:fixed要素の基準がずれるため） */
.site-header::before {
	content: '';
	position: absolute;
	inset: 0;
	z-index: -1;
	background: linear-gradient(180deg, rgba(6,38,27,0.95), rgba(6,38,27,0.75));
	backdrop-filter: blur(6px);
}
.site-header.is-hidden { top: calc(-1 * var(--header-height) - 10px); }

.site-header__inner {
	max-width: 1280px;
	margin: 0 auto;
	height: 100%;
	padding: 0 32px;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.site-logo { display: flex; flex-direction: column; line-height: 1.2; }
.site-logo__main {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: 20px;
	color: var(--color-gold-light);
	letter-spacing: 0.04em;
}

.site-nav .nav-menu { display: flex; gap: 40px; }
.site-nav .nav-menu a {
	position: relative;
	font-family: var(--font-display);
	font-size: 14px;
	letter-spacing: 0.1em;
	padding: 6px 0;
}
.site-nav .nav-menu a::after {
	content: '';
	position: absolute;
	left: 0; bottom: 0;
	width: 0; height: 2px;
	background: var(--color-gold);
	transition: width 0.3s ease;
}
.site-nav .nav-menu a:hover::after { width: 100%; }

.nav-toggle {
	display: none;
	width: 36px; height: 28px;
	background: none; border: none;
	flex-direction: column;
	justify-content: space-between;
	cursor: pointer;
	padding: 0;
}
.nav-toggle span {
	display: block;
	height: 2px;
	background: var(--color-gold-light);
	transform-origin: center;
	transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(13px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-13px) rotate(-45deg); }
.nav-backdrop { display: none; }

/* ==========================================================================
   固定ダウンロードボタン（スクロール追従）
   ========================================================================== */
.sticky-cta {
	position: fixed;
	right: 18px;
	top: 50%;
	transform: translateY(-50%);
	z-index: 490;
	display: flex;
	flex-direction: column;
	align-items: flex-end;
	gap: 12px;
}
.sticky-cta__btn {
	display: flex;
	align-items: center;
	height: 44px;
	border-radius: 8px;
	overflow: hidden;
	box-shadow: 0 6px 18px rgba(0,0,0,0.4);
	transform: translateX(120%);
	opacity: 0;
	transition: transform 0.5s ease, opacity 0.5s ease, box-shadow 0.3s ease;
}
.sticky-cta__btn img { height: 100%; width: auto; display: block; }
.sticky-cta.is-visible .sticky-cta__btn { transform: translateX(0); opacity: 1; }
.sticky-cta__btn:hover { box-shadow: 0 8px 22px rgba(212,175,55,0.45); }
.sticky-cta__btn:nth-child(2) { transition-delay: 0.08s; }

/* ==========================================================================
   ヒーロー
   ========================================================================== */
.hero {
	position: relative;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	overflow: hidden;
	padding: var(--header-height) 24px 80px;
}

.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__still {
	position: absolute;
	inset: 0;
	z-index: 2;
	width: 100%; height: 100%;
	object-fit: cover;
}
.hero__track-fallback {
	position: absolute;
	inset: 0;
	z-index: 1;
	background:
		linear-gradient(180deg, var(--color-green-dark), var(--color-green-mid) 55%, var(--color-green-dark)),
		repeating-linear-gradient(90deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 90px);
}
.hero__rail {
	position: absolute;
	left: 0; right: 0;
	height: 2px;
	background: rgba(245,240,225,0.25);
	top: 30%;
}
.hero__rail--2 { top: 72%; }
.hero__overlay {
	position: absolute;
	inset: 0;
	z-index: 3;
	background: linear-gradient(180deg, rgba(6,38,27,0.55) 0%, rgba(6,38,27,0.35) 35%, rgba(6,38,27,0.75) 78%, rgba(6,38,27,0.95) 100%);
}

.hero__content { position: relative; z-index: 2; max-width: 960px; }

.hero__eyebrow {
	font-family: var(--font-display);
	letter-spacing: 0.2em;
	font-size: 13px;
	color: var(--color-gold-light);
	margin-bottom: 18px;
}

.hero__catch {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: clamp(22px, 4.2vw, 44px);
	line-height: 1.5;
	margin: 0 0 24px;
	color: var(--color-white);
	text-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.hero__catch-line { display: block; white-space: nowrap; }
.hero__catch-accent {
	color: var(--color-gold-light);
	background: linear-gradient(90deg, var(--color-gold-light), var(--color-gold));
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
}

.hero__lead { font-size: 16px; color: rgba(245,240,225,0.85); margin-bottom: 40px; }

.hero__cta { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

.store-badge {
	position: relative;
	display: inline-flex;
	align-items: center;
	height: 54px;
	transition: transform 0.25s ease, filter 0.25s ease;
	filter: drop-shadow(0 6px 16px rgba(0,0,0,0.35));
}
.store-badge img { height: 100%; width: auto; display: block; }
.store-badge::after {
	content: '';
	position: absolute;
	left: 50%;
	bottom: -4px;
	width: 46px;
	height: 16px;
	background: radial-gradient(ellipse, rgba(212,175,55,0.55), transparent 70%);
	transform: translateX(-50%) scale(0);
	opacity: 0;
	pointer-events: none;
	transition: transform 0.4s ease, opacity 0.4s ease;
}
.store-badge:hover {
	transform: translateY(-3px);
	filter: drop-shadow(0 10px 22px rgba(212,175,55,0.4));
}
.store-badge:hover::after {
	transform: translateX(-50%) scale(1.6);
	opacity: 1;
}

.hero__scroll-cue {
	position: absolute;
	bottom: 28px;
	left: 50%;
	transform: translateX(-50%);
	z-index: 2;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 8px;
	font-family: var(--font-display);
	font-size: 10px;
	letter-spacing: 0.3em;
	color: rgba(245,240,225,0.6);
}
.hero__scroll-line {
	width: 1px; height: 40px;
	background: linear-gradient(180deg, var(--color-gold), transparent);
	animation: scroll-cue 1.8s ease-in-out infinite;
}
@keyframes scroll-cue {
	0%, 100% { transform: scaleY(1); transform-origin: top; }
	50% { transform: scaleY(0.4); transform-origin: top; }
}

/* ==========================================================================
   オッズティッカー（帯状の流れる装飾）
   ========================================================================== */
.odds-ticker {
	background: var(--color-gold);
	color: var(--color-green-dark);
	overflow: hidden;
	white-space: nowrap;
	padding: 10px 0;
	position: relative;
	z-index: 10;
}
.odds-ticker__track {
	display: inline-block;
	font-family: var(--font-display);
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 0.04em;
	animation: ticker-scroll 28s linear infinite;
}
@keyframes ticker-scroll {
	from { transform: translateX(0); }
	to { transform: translateX(-50%); }
}

/* ==========================================================================
   ギャロップディバイダー（セクション間を駆け抜ける馬）
   ========================================================================== */
.gallop-divider {
	position: relative;
	height: 56px;
	overflow: hidden;
	background: linear-gradient(180deg, rgba(0,0,0,0.15), transparent);
}
.gallop-divider__track {
	position: absolute;
	top: 50%;
	left: 0; right: 0;
	height: 2px;
	transform: translateY(-50%);
	background: repeating-linear-gradient(90deg, rgba(212,175,55,0.55) 0 16px, transparent 16px 32px);
}
.gallop-divider__horse {
	position: absolute;
	top: 50%;
	left: -8%;
	font-size: 30px;
	transform: translateY(-70%) scaleX(-1);
	filter: drop-shadow(0 4px 6px rgba(0,0,0,0.4));
}

/* ==========================================================================
   共通セクション
   ========================================================================== */
.section { position: relative; padding: 120px 24px; }
.section__inner { max-width: 960px; margin: 0 auto; }
.section__inner--center { text-align: center; }

.section__label {
	font-family: var(--font-display);
	color: var(--color-gold);
	letter-spacing: 0.35em;
	font-size: 13px;
	margin: 0 0 8px;
}
.section__title {
	font-family: var(--font-display);
	font-size: clamp(28px, 4vw, 40px);
	font-weight: 700;
	margin: 0 0 48px;
	color: var(--color-white);
	position: relative;
	padding-bottom: 20px;
}
.section__title::after {
	content: '';
	position: absolute;
	left: 0; bottom: 0;
	width: 64px; height: 3px;
	background: var(--color-gold);
}
.section__inner--center .section__title::after { left: 50%; transform: translateX(-50%); }

/* [data-reveal] は main.js の ScrollTrigger でフェードイン制御 */
[data-reveal] { opacity: 0; transform: translateY(40px); }


/* ==========================================================================
   STORY
   ========================================================================== */
.story-section { background: linear-gradient(180deg, transparent, rgba(0,0,0,0.25), transparent); }
.story-section__bg {
	position: absolute;
	inset: 0;
	background-image: repeating-linear-gradient(45deg, rgba(212,175,55,0.04) 0 2px, transparent 2px 40px);
	pointer-events: none;
}
.story-divider { text-align: center; color: var(--color-gold); letter-spacing: 0.1em; margin-bottom: 40px; font-size: 13px; }
.story-text { max-width: 680px; margin: 0 auto 32px; }
.story-text p { margin: 0 0 18px; color: rgba(245,240,225,0.9); }

.story-quote {
	max-width: 680px;
	margin: 40px auto;
	padding: 28px 32px;
	border-left: 3px solid var(--color-gold);
	background: rgba(212,175,55,0.06);
	font-size: 18px;
	font-weight: 700;
	color: var(--color-white);
	font-style: normal;
}

/* ==========================================================================
   SYSTEM（馬券風カード）
   ========================================================================== */
.system-cards {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 32px;
}
.system-card__ticket {
	position: relative;
	background: linear-gradient(160deg, rgba(245,240,225,0.06), rgba(245,240,225,0.02));
	border: 1px dashed rgba(212,175,55,0.5);
	border-radius: 14px;
	padding: 0 0 32px;
	overflow: hidden;
	height: 100%;
	transition: transform 0.35s ease, border-color 0.35s ease, background 0.35s ease;
}
.system-card__thumb {
	aspect-ratio: 16 / 9;
	overflow: hidden;
	margin-bottom: 24px;
}
.system-card__thumb img {
	width: 100%; height: 100%;
	object-fit: cover;
	transition: transform 0.5s ease;
}
.system-card:hover .system-card__thumb img { transform: scale(1.06); }
.system-card__ticket::before,
.system-card__ticket::after {
	content: '';
	position: absolute;
	top: 50%;
	width: 22px; height: 22px;
	background: var(--color-green-dark);
	border-radius: 50%;
	transform: translateY(-50%);
}
.system-card__ticket::before { left: -11px; }
.system-card__ticket::after { right: -11px; }
.system-card:hover .system-card__ticket {
	transform: translateY(-8px);
	border-color: var(--color-gold);
	background: linear-gradient(160deg, rgba(212,175,55,0.12), rgba(212,175,55,0.02));
}
.system-card__number {
	display: block;
	font-family: var(--font-display);
	font-size: 13px;
	color: var(--color-gold);
	letter-spacing: 0.2em;
	margin: 0 32px;
}
.system-card__title {
	font-family: var(--font-display);
	font-size: 22px;
	margin: 12px 32px 14px;
	color: var(--color-white);
}
.system-card__text { font-size: 14px; color: rgba(245,240,225,0.8); margin: 0 32px; }

/* ==========================================================================
   ABOUT（背面に動画4本、前面にキャッチコピー）
   ========================================================================== */
.about-video {
	padding: 100px 24px;
}
.about-video__frame {
	position: relative;
	max-width: 1200px;
	min-height: 70vh;
	margin: 0 auto;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
	border-radius: 20px;
	border: 1px solid rgba(212,175,55,0.35);
	box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.about-video__bg { position: absolute; inset: 0; z-index: 0; }
.about-video__overlay {
	position: absolute;
	inset: 0;
	z-index: 1;
	background: linear-gradient(180deg, rgba(6,38,27,0.75) 0%, rgba(6,38,27,0.55) 40%, rgba(6,38,27,0.85) 100%);
}
.about-video__content { position: relative; z-index: 2; max-width: 900px; padding: 24px; }
.about-video__content .hero__catch { margin-bottom: 20px; }
.about-video__content .hero__lead { margin-bottom: 0; }

.movie-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 0;
}
.movie-grid--bg {
	position: absolute;
	inset: 0;
	grid-template-rows: repeat(2, 1fr);
	height: 100%;
}
.movie-grid__item {
	position: relative;
	overflow: hidden;
	background: var(--color-green);
}
.movie-grid__video {
	width: 100%; height: 100%;
	object-fit: cover;
	display: block;
}

/* ==========================================================================
   SNS
   ========================================================================== */
.sns-section__lead { color: rgba(245,240,225,0.8); margin-bottom: 32px; }
.sns-x-btn {
	display: inline-block;
	padding: 16px 40px;
	border: 1px solid var(--color-gold);
	border-radius: 999px;
	font-family: var(--font-display);
	letter-spacing: 0.05em;
	transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease;
}
.sns-x-btn:hover { background: var(--color-gold); color: var(--color-green-dark); transform: translateY(-2px); }

/* ==========================================================================
   FINAL CTA
   ========================================================================== */
.final-cta-section {
	background: linear-gradient(180deg, transparent, rgba(212,175,55,0.06), transparent);
}
.final-cta__title {
	font-family: var(--font-display);
	font-size: clamp(24px, 4vw, 34px);
	margin-bottom: 40px;
	color: var(--color-white);
}

/* ==========================================================================
   フェンス区切り線
   ========================================================================== */
.rail-divider {
	height: 26px;
	background-image:
		repeating-linear-gradient(90deg, var(--color-gold) 0 3px, transparent 3px 60px),
		linear-gradient(180deg, transparent 40%, rgba(212,175,55,0.4) 40%, rgba(212,175,55,0.4) 44%, transparent 44%);
	opacity: 0.6;
}

/* ==========================================================================
   フッター
   ========================================================================== */
.site-footer { background: var(--color-green-dark); padding: 0 0 40px; }
.site-footer__inner {
	max-width: 1000px;
	margin: 0 auto;
	padding: 48px 24px 0;
	text-align: center;
}
.site-footer__logo {
	font-family: var(--font-display);
	font-size: 22px;
	color: var(--color-gold-light);
	margin: 0 0 12px;
}
.site-footer__copy { font-size: 13px; color: rgba(245,240,225,0.6); max-width: 480px; margin: 0 auto 16px; }
.site-footer__x { display: inline-block; font-size: 13px; color: var(--color-gold); border-bottom: 1px solid var(--color-gold); margin-bottom: 32px; }

.footer-menu ul { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; margin-bottom: 32px; }
.footer-menu a { font-size: 12px; color: rgba(245,240,225,0.7); }
.footer-menu a:hover { color: var(--color-gold-light); }

.site-footer__copyright { font-size: 11px; color: rgba(245,240,225,0.4); }

/* ==========================================================================
   固定ページ（規約・ポリシー等）
   ========================================================================== */
.legal-section { padding-top: calc(var(--header-height) + 64px); }
.legal-section__inner { max-width: 780px; }
.legal-content { font-size: 15px; color: rgba(245,240,225,0.88); }
.legal-content h2 {
	font-family: var(--font-display);
	font-size: 18px;
	color: var(--color-gold-light);
	margin: 40px 0 12px;
	padding-bottom: 8px;
	border-bottom: 1px solid rgba(212,175,55,0.3);
}
.legal-content h2:first-child { margin-top: 0; }
.legal-content p { margin: 0 0 16px; line-height: 1.9; }
.legal-content ul { margin: 0 0 16px; padding-left: 1.4em; }
.legal-content li { margin-bottom: 8px; line-height: 1.8; }
.legal-content .legal-note {
	font-size: 12px;
	color: var(--color-gold);
	background: rgba(212,175,55,0.08);
	border-left: 3px solid var(--color-gold);
	padding: 10px 14px;
	margin: -8px 0 20px;
}
.legal-back { margin-top: 48px; }
.legal-back a { color: var(--color-gold); border-bottom: 1px solid var(--color-gold); }
.legal-back a:hover { color: var(--color-gold-light); }

/* ==========================================================================
   レスポンシブ
   ========================================================================== */
@media (max-width: 880px) {
	.system-cards { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
	.u-sp-only { display: inline; }
	.site-nav {
		position: fixed;
		top: var(--header-height);
		right: 0;
		bottom: 0;
		width: 240px;
		max-width: 78vw;
		z-index: 600;
		background: var(--color-green-dark);
		border-left: 1px solid rgba(212,175,55,0.25);
		box-shadow: -12px 0 32px rgba(0,0,0,0.5);
		transform: translateX(100%);
		transition: transform 0.35s ease;
		padding: 24px 24px 32px;
		overflow-y: auto;
	}
	.site-nav.is-open { transform: translateX(0); }
	.site-nav .nav-menu { flex-direction: column; gap: 4px; }
	.site-nav .nav-menu a { display: block; padding: 12px 0; font-size: 16px; }
	.nav-toggle { display: flex; position: relative; z-index: 601; }
	.nav-backdrop {
		display: block;
		position: fixed;
		top: var(--header-height);
		left: 0; right: 0; bottom: 0;
		z-index: 495;
		opacity: 0;
		pointer-events: none;
		transition: opacity 0.35s ease;
	}
	.nav-backdrop.is-open { opacity: 1; pointer-events: auto; }
	.sticky-cta { right: 10px; }
	.sticky-cta__btn { height: 34px; }
	.section { padding: 80px 20px; }
	.hero__cta { flex-direction: column; align-items: center; }
	.hero__catch-line { white-space: normal; }
	.about-video { padding: 60px 16px; }
	.about-video__frame { min-height: 60vh; border-radius: 14px; }
}