/* ============================================================
   style.css — 全ページ共通スタイル
   index.css / about.css / gallery.css / contact.css の前に読み込むこと
   ============================================================ */

/* =============================================
   CSS 変数
   ============================================= */

:root {
	--black: #0a0a0a;
	--white: #f5f0e8;
	--yellow: #f5c518;
	--red: #c0392b;
	--gray: #1a1a1a;
	--light-gray: #2a2a2a;

	--font-display: "Bebas Neue", sans-serif;
	--font-script: "Dancing Script", cursive;
	--font-heading: "Oswald", sans-serif;
	--font-body: "Noto Sans JP", sans-serif;
}

/* =============================================
   リセット & ベース
   ============================================= */

*,
*::before,
*::after {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	background: var(--black);
	color: var(--white);
	font-family: var(--font-body);
	overflow-x: hidden;
	cursor: none;
}

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

a {
	color: inherit;
	text-decoration: none;
}

button {
	font-family: inherit;
	border: none;
	background: none;
	cursor: pointer;
}

/* =============================================
   共通アニメーション
   ============================================= */

@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(20px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* =============================================
   カスタムカーソル
   ============================================= */

.cursor {
	position: fixed;
	width: 20px;
	height: 20px;
	border: 2px solid var(--yellow);
	border-radius: 50%;
	pointer-events: none;
	z-index: 99999;
	transform: translate(-50%, -50%);
	transition:
		width 0.15s ease,
		height 0.15s ease,
		border-color 0.15s ease,
		opacity 0.15s ease;
	mix-blend-mode: difference;
}

.cursor.clicked {
	width: 40px;
	height: 40px;
	border-color: var(--red);
	opacity: 0.5;
}

.cursor-dot {
	position: fixed;
	width: 4px;
	height: 4px;
	background: var(--yellow);
	border-radius: 50%;
	pointer-events: none;
	z-index: 99999;
	transform: translate(-50%, -50%);
}

/* =============================================
   シャッターエフェクト
   ============================================= */

.shutter-overlay {
	position: fixed;
	inset: 0;
	z-index: 9999;
	pointer-events: none;
	display: flex;
	flex-direction: column;
}

.shutter-top,
.shutter-bottom {
	height: 50%;
	background: var(--black);
	transform: scaleY(0);
}

.shutter-top {
	transform-origin: top;
}
.shutter-bottom {
	transform-origin: bottom;
}

.shutter-overlay.active .shutter-top,
.shutter-overlay.active .shutter-bottom {
	animation: shutterClose 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes shutterClose {
	0% {
		transform: scaleY(0);
	}
	50% {
		transform: scaleY(1);
	}
	100% {
		transform: scaleY(0);
	}
}

.shutter-flash {
	position: fixed;
	inset: 0;
	background: white;
	opacity: 0;
	pointer-events: none;
	z-index: 9998;
}

.shutter-flash.active {
	animation: flash 0.3s ease forwards;
}

@keyframes flash {
	0% {
		opacity: 0;
	}
	20% {
		opacity: 0.8;
	}
	100% {
		opacity: 0;
	}
}

/* =============================================
   ローディング画面
   ============================================= */

#loader {
	position: fixed;
	inset: 0;
	background: var(--black);
	z-index: 99999;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	overflow: hidden;
}

#loader.hide {
	animation: loaderHide 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes loaderHide {
	to {
		opacity: 0;
		transform: scale(1.05);
		visibility: hidden;
	}
}

.loader-scanlines {
	position: absolute;
	inset: 0;
	pointer-events: none;
	background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.015) 2px, rgba(255, 255, 255, 0.015) 4px);
}

.loader-corner {
	position: absolute;
	width: 40px;
	height: 40px;
	border-color: var(--yellow);
	border-style: solid;
	border-width: 0;
}

.loader-corner.tl {
	top: 30px;
	left: 30px;
	border-top-width: 2px;
	border-left-width: 2px;
}
.loader-corner.tr {
	top: 30px;
	right: 30px;
	border-top-width: 2px;
	border-right-width: 2px;
}
.loader-corner.bl {
	bottom: 30px;
	left: 30px;
	border-bottom-width: 2px;
	border-left-width: 2px;
}
.loader-corner.br {
	bottom: 30px;
	right: 30px;
	border-bottom-width: 2px;
	border-right-width: 2px;
}

.loader-aperture {
	position: relative;
	width: 200px;
	height: 200px;
	margin-bottom: 40px;
}

.aperture-ring {
	position: absolute;
	top: 50%;
	left: 50%;
	border-radius: 50%;
	border: 3px solid transparent;
	transform: translate(-50%, -50%);
	animation: rotateRing 2s linear infinite;
}

.aperture-ring:nth-child(1) {
	width: 200px;
	height: 200px;
	border-top-color: var(--yellow);
	border-right-color: var(--yellow);
	animation-duration: 2s;
}

.aperture-ring:nth-child(2) {
	width: 160px;
	height: 160px;
	border-bottom-color: var(--red);
	border-left-color: var(--red);
	animation-duration: 1.5s;
	animation-direction: reverse;
}

.aperture-ring:nth-child(3) {
	width: 120px;
	height: 120px;
	border-top-color: var(--white);
	animation-duration: 3s;
}

@keyframes rotateRing {
	to {
		transform: translate(-50%, -50%) rotate(360deg);
	}
}

.aperture-center {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 70px;
	height: 70px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.aperture-blades {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 60px;
	height: 60px;
	transform: translate(-50%, -50%);
	animation: apertureOpen 3s cubic-bezier(0.4, 0, 0.2, 1) forwards 1s;
}

@keyframes apertureOpen {
	0% {
		transform: translate(-50%, -50%) rotate(0deg) scale(1);
		opacity: 1;
	}
	100% {
		transform: translate(-50%, -50%) rotate(180deg) scale(0);
		opacity: 0;
	}
}

.blade {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 30px;
	height: 30px;
	background: var(--yellow);
	transform-origin: 0 0;
	clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.blade:nth-child(1) {
	transform: rotate(0deg) translate(-50%, -100%);
}
.blade:nth-child(2) {
	transform: rotate(45deg) translate(-50%, -100%);
}
.blade:nth-child(3) {
	transform: rotate(90deg) translate(-50%, -100%);
}
.blade:nth-child(4) {
	transform: rotate(135deg) translate(-50%, -100%);
}
.blade:nth-child(5) {
	transform: rotate(180deg) translate(-50%, -100%);
}
.blade:nth-child(6) {
	transform: rotate(225deg) translate(-50%, -100%);
}
.blade:nth-child(7) {
	transform: rotate(270deg) translate(-50%, -100%);
}
.blade:nth-child(8) {
	transform: rotate(315deg) translate(-50%, -100%);
}

.loader-text {
	font-family: var(--font-display);
	font-size: clamp(2rem, 5vw, 3.5rem);
	letter-spacing: 0.5em;
	color: var(--white);
	text-align: center;
	opacity: 0;
	animation: fadeInUp 0.8s forwards 0.5s;
}

.loader-sub {
	font-family: var(--font-heading);
	font-size: 0.9rem;
	letter-spacing: 0.4em;
	color: var(--yellow);
	margin-top: 10px;
	opacity: 0;
	animation: fadeInUp 0.8s forwards 1s;
}

.loader-progress {
	position: absolute;
	bottom: 60px;
	width: 300px;
	height: 2px;
	background: var(--light-gray);
	overflow: hidden;
}

.loader-progress-bar {
	height: 100%;
	width: 0%;
	background: linear-gradient(90deg, var(--yellow), var(--red));
	animation: loadProgress 2.5s cubic-bezier(0.4, 0, 0.2, 1) forwards 0.5s;
}

@keyframes loadProgress {
	to {
		width: 100%;
	}
}

.loader-counter {
	position: absolute;
	bottom: 75px;
	right: calc(50% - 150px);
	font-family: var(--font-display);
	font-size: 0.8rem;
	letter-spacing: 0.1em;
	color: var(--yellow);
}

/* =============================================
   ヘッダー
   ============================================= */

header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	height: 70px;
	padding: 0 40px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	background: rgba(10, 10, 10, 0.6);
	backdrop-filter: blur(20px);
	-webkit-backdrop-filter: blur(20px);
	border-bottom: 1px solid rgba(245, 197, 24, 0.1);
	transition: all 0.3s ease;
}

.header-logo {
	font-family: var(--font-display);
	font-size: 1.4rem;
	letter-spacing: 0.2em;
	color: var(--yellow);
}

.header-logo span {
	color: var(--white);
}

.desktop-nav {
	display: flex;
	gap: 40px;
}

.desktop-nav a {
	font-family: var(--font-heading);
	font-size: 0.85rem;
	letter-spacing: 0.3em;
	color: var(--white);
	position: relative;
	transition: color 0.3s;
}

.desktop-nav a::after {
	content: "";
	position: absolute;
	bottom: -4px;
	left: 0;
	width: 0;
	height: 1px;
	background: var(--yellow);
	transition: width 0.3s ease;
}

.desktop-nav a:hover {
	color: var(--yellow);
}
.desktop-nav a:hover::after {
	width: 100%;
}

.hamburger {
	display: none;
	flex-direction: column;
	gap: 5px;
	padding: 5px;
	cursor: pointer;
}

.hamburger span {
	display: block;
	width: 24px;
	height: 2px;
	background: var(--yellow);
	transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
	transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
	opacity: 0;
}
.hamburger.active span:nth-child(3) {
	transform: rotate(-45deg) translate(5px, -5px);
}

header.scrolled .desktop-nav {
	display: none;
}
header.scrolled .hamburger {
	display: flex;
}

@media (max-width: 900px) {
	header .desktop-nav {
		display: none;
	}
	header .hamburger {
		display: flex;
	}
}

.mobile-nav {
	position: fixed;
	top: 70px;
	left: 0;
	width: 100%;
	z-index: 999;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 30px;
	padding: 40px 0;
	background: rgba(10, 10, 10, 0.97);
	backdrop-filter: blur(20px);
	border-bottom: 1px solid rgba(245, 197, 24, 0.2);
	transform: translateY(-120%);
	transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.mobile-nav a {
	font-family: var(--font-display);
	font-size: 2rem;
	letter-spacing: 0.3em;
	color: var(--white);
	transition: color 0.3s;
}

.mobile-nav a:hover {
	color: var(--yellow);
}

/* =============================================
   トップへ戻るボタン
   ============================================= */

#back-to-top {
	position: fixed;
	bottom: 30px;
	right: 30px;
	z-index: 1001;
	width: 50px;
	height: 50px;
	background: var(--yellow);
	display: flex;
	align-items: center;
	justify-content: center;
	clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
	opacity: 0;
	transform: translateY(20px);
	transition:
		opacity 0.3s,
		transform 0.3s,
		background 0.3s;
	cursor: pointer;
}

#back-to-top.visible {
	opacity: 1;
	transform: translateY(0);
}
#back-to-top:hover {
	background: var(--red);
	transform: translateY(-3px);
}
#back-to-top i {
	color: var(--black);
	font-size: 0.9rem;
}

/* =============================================
   セクション共通
   ============================================= */

section {
	padding: 100px 40px;
	max-width: 1400px;
	margin: 0 auto;
}

.section-title-wrapper {
	display: flex;
	align-items: center;
	gap: 20px;
	margin-bottom: 60px;
}

.section-title {
	font-family: var(--font-display);
	font-size: clamp(2.5rem, 6vw, 4rem);
	letter-spacing: 0.15em;
	line-height: 1;
}

.title-deco {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-shrink: 0;
}

.aperture-icon {
	width: 36px;
	height: 36px;
}

.aperture-icon svg {
	width: 100%;
	height: 100%;
	animation: spin 8s linear infinite;
}

@keyframes spin {
	to {
		transform: rotate(360deg);
	}
}

.deco-line {
	width: 60px;
	height: 2px;
	background: linear-gradient(90deg, var(--yellow), var(--red));
}

.title-deco-after {
	flex: 1;
	height: 1px;
	background: linear-gradient(90deg, rgba(245, 197, 24, 0.4), transparent);
}

/* =============================================
   共通ボタン
   ============================================= */

.btn {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-family: var(--font-heading);
	font-size: 0.8rem;
	letter-spacing: 0.4em;
	padding: 14px 32px;
	border: 1px solid var(--yellow);
	color: var(--yellow);
	background: transparent;
	position: relative;
	overflow: hidden;
	transition: color 0.3s;
	cursor: pointer;
}

.btn::before {
	content: "";
	position: absolute;
	inset: 0;
	background: var(--yellow);
	transform: translateX(-100%);
	transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover::before {
	transform: translateX(0);
}
.btn:hover {
	color: var(--black);
}
.btn span,
.btn i {
	position: relative;
	z-index: 1;
}

/* =============================================
   スクロールリビール
   ============================================= */

.reveal {
	opacity: 0;
	transform: translateY(40px);
	transition:
		opacity 0.8s ease,
		transform 0.8s ease;
}

.reveal.visible {
	opacity: 1;
	transform: translateY(0);
}

/* =============================================
   ライトボックス
   ============================================= */

#lightbox {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.95);
	z-index: 9000;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.3s;
}

#lightbox.open {
	opacity: 1;
	pointer-events: all;
}

#lightbox img {
	max-width: 90vw;
	max-height: 85vh;
	object-fit: contain;
	border: 1px solid rgba(245, 197, 24, 0.2);
}

#lightbox-close {
	position: absolute;
	top: 30px;
	right: 30px;
	font-family: var(--font-display);
	font-size: 2rem;
	color: var(--yellow);
	line-height: 1;
	cursor: pointer;
}

#lightbox-title {
	position: absolute;
	bottom: 40px;
	left: 50%;
	transform: translateX(-50%);
	font-family: var(--font-heading);
	font-size: 0.8rem;
	letter-spacing: 0.4em;
	color: var(--white);
}

/* =============================================
   フッター
   ============================================= */

footer {
	background: var(--black);
	border-top: 1px solid rgba(245, 197, 24, 0.1);
	padding: 40px;
	text-align: center;
}

.footer-logo {
	font-family: var(--font-display);
	font-size: 1.8rem;
	letter-spacing: 0.3em;
	color: var(--yellow);
	margin-bottom: 10px;
}

.footer-copy {
	font-size: 0.72rem;
	letter-spacing: 0.2em;
	color: rgba(245, 240, 232, 0.2);
}

/* =============================================
   サブページ共通（about / gallery / contact）
   ============================================= */

.page-hero {
	position: relative;
	height: 40vh;
	min-height: 280px;
	display: flex;
	align-items: flex-end;
	padding: 60px 40px;
	overflow: hidden;
	background: var(--gray);
	border-bottom: 1px solid rgba(245, 197, 24, 0.1);
	margin-top: 70px;
}

.page-hero-title {
	font-family: var(--font-display);
	font-size: clamp(3rem, 8vw, 6rem);
	letter-spacing: 0.2em;
	line-height: 1;
	position: relative;
	z-index: 2;
}

.page-hero-sub {
	font-family: var(--font-heading);
	font-size: 0.75rem;
	letter-spacing: 0.5em;
	color: var(--yellow);
	margin-top: 8px;
	position: relative;
	z-index: 2;
}

.page-section {
	max-width: 1400px;
	margin: 0 auto;
	padding: 80px 40px;
}

html {
	scroll-behavior: smooth;
}

/* =============================================
   レスポンシブ（共通）
   ============================================= */

@media (max-width: 900px) {
	header {
		padding: 0 20px;
	}
	section {
		padding: 80px 20px;
	}
	.page-hero {
		padding: 40px 20px;
	}
	.page-section {
		padding: 60px 20px;
	}
	.section-title {
		font-size: 2.5rem;
	}
}

@media (max-width: 480px) {
	.section-title {
		font-size: 2rem;
	}
}