/*
3zat.work - Custom Fluid Minimalist UI System
Licensed under the MIT License.
*/

/* --- THEME DEFINITIONS --- */

/* Default (Dark Mode) */
:root, [data-theme="dark"] {
	--bg-base: #030107;
	--text-primary: #ffffff;
	--text-muted: #c5c0d0;
	--color-accent: #6f00ff; /* エレクトリック・バイオレット */
	--color-accent-secondary: #00f0ff; /* ルミナス・シアン */
	--color-accent-tertiary: #ff007f; /* オーロラ・ピンク */
	
	/* グラスエフェクト用の透過カラー */
	--glass-bg: rgba(14, 10, 24, 0.45);
	--glass-border: rgba(255, 255, 255, 0.06);
	--glass-shadow: rgba(0, 0, 0, 0.6);
	--glass-border-hover: rgba(255, 255, 255, 0.15);
	
	--color-white: #ffffff;
	--color-black: #000000;
	--btn-primary-bg: #ffffff;
	--btn-primary-text: #000000;
	--btn-secondary-border: rgba(255, 255, 255, 0.2);
	--btn-secondary-hover-bg: rgba(255, 255, 255, 0.05);
	--grain-opacity: 0.02;
	
	/* 流体アニメーション背景 */
	--bg-gradient: 
		radial-gradient(circle at 10% 20%, rgba(111, 0, 255, 0.08) 0%, transparent 40%),
		radial-gradient(circle at 90% 80%, rgba(0, 240, 255, 0.06) 0%, transparent 40%),
		radial-gradient(circle at 50% 50%, rgba(255, 0, 127, 0.04) 0%, transparent 50%);
		
	--transition-speed: 0.3s;
}

/* Light Mode */
[data-theme="light"] {
	--bg-base: #ffffff;
	--text-primary: #000000;
	--text-muted: #333333;
	--color-accent: #6200ee;
	--color-accent-secondary: #007799;
	--color-accent-tertiary: #b0003a;
	
	--glass-bg: rgba(255, 255, 255, 0.9);
	--glass-border: rgba(0, 0, 0, 0.25);
	--glass-shadow: rgba(0, 0, 0, 0.15);
	--glass-border-hover: rgba(0, 0, 0, 0.45);
	
	--color-white: #000000;
	--color-black: #ffffff;
	--btn-primary-bg: #000000;
	--btn-primary-text: #ffffff;
	--btn-secondary-border: rgba(0, 0, 0, 0.4);
	--btn-secondary-hover-bg: rgba(0, 0, 0, 0.05);
	--grain-opacity: 0.04;
	
	--bg-gradient: 
		radial-gradient(circle at 10% 20%, rgba(98, 0, 238, 0.04) 0%, transparent 40%),
		radial-gradient(circle at 90% 80%, rgba(0, 180, 216, 0.04) 0%, transparent 40%),
		radial-gradient(circle at 50% 50%, rgba(216, 27, 96, 0.03) 0%, transparent 50%);
}

/* E-book / Sepia Mode */
[data-theme="sepia"] {
	--bg-base: #f4ecd8;
	--text-primary: #2a1b0c;
	--text-muted: #5e4f3e;
	--color-accent: #8e4a23;
	--color-accent-secondary: #2b5c47;
	--color-accent-tertiary: #b07010;
	
	--glass-bg: rgba(251, 248, 239, 0.75);
	--glass-border: rgba(67, 52, 34, 0.12);
	--glass-shadow: rgba(67, 52, 34, 0.05);
	--glass-border-hover: rgba(67, 52, 34, 0.22);
	
	--color-white: #2a1b0c;
	--color-black: #faf6eb;
	--btn-primary-bg: #2a1b0c;
	--btn-primary-text: #faf6eb;
	--btn-secondary-border: rgba(67, 52, 34, 0.2);
	--btn-secondary-hover-bg: rgba(67, 52, 34, 0.05);
	--grain-opacity: 0.05;
	
	--bg-gradient: none;
}

/* AMOLED Black Mode */
[data-theme="amoled"] {
	--bg-base: #000000;
	--text-primary: #ffffff;
	--text-muted: #c0c0c0;
	--color-accent: #a040ff;
	--color-accent-secondary: #00e5ff;
	--color-accent-tertiary: #ff007f;
	
	--glass-bg: rgba(0, 0, 0, 0.85);
	--glass-border: rgba(255, 255, 255, 0.12);
	--glass-shadow: rgba(0, 0, 0, 0);
	--glass-border-hover: rgba(255, 255, 255, 0.25);
	
	--color-white: #ffffff;
	--color-black: #000000;
	--btn-primary-bg: #ffffff;
	--btn-primary-text: #000000;
	--btn-secondary-border: rgba(255, 255, 255, 0.25);
	--btn-secondary-hover-bg: rgba(255, 255, 255, 0.08);
	--grain-opacity: 0;
	
	--bg-gradient: none;
}

/* Material Color Mode */
[data-theme="material"] {
	--bg-base: #121114;
	--text-primary: #ffffff;
	--text-muted: #dcd7dc;
	--color-accent: #d0bcff;
	--color-accent-secondary: #ccc2dc;
	--color-accent-tertiary: #efb8c8;
	
	--glass-bg: rgba(30, 27, 34, 0.7);
	--glass-border: rgba(147, 143, 148, 0.2);
	--glass-shadow: rgba(0, 0, 0, 0.3);
	--glass-border-hover: rgba(147, 143, 148, 0.4);
	
	--color-white: #ffffff;
	--color-black: #121114;
	--btn-primary-bg: #d0bcff;
	--btn-primary-text: #381e72;
	--btn-secondary-border: rgba(204, 194, 220, 0.4);
	--btn-secondary-hover-bg: rgba(204, 194, 220, 0.08);
	--grain-opacity: 0.01;
	
	--bg-gradient: 
		radial-gradient(circle at 10% 20%, rgba(208, 188, 255, 0.06) 0%, transparent 40%),
		radial-gradient(circle at 90% 80%, rgba(204, 194, 220, 0.04) 0%, transparent 40%);
}

:root {
	/* トランジション設定 */
	--ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
	--transition-smooth: all 0.5s var(--ease-out-expo);
	--transition-quick: all 0.2s ease;
}

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

html {
	scroll-behavior: smooth;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

body {
	background-color: var(--bg-base);
	color: var(--text-primary);
	font-family: "Inter", "Noto Sans JP", sans-serif;
	font-weight: 700;
	line-height: 1.8;
	overflow-x: hidden;
	-webkit-font-smoothing: antialiased;
	
	/* 流体アニメーション背景 */
	background-image: var(--bg-gradient);
	background-attachment: fixed;
	
	/* スムーズなテーマ切り替え */
	transition: background-color var(--transition-speed) ease, 
	            color var(--transition-speed) ease,
	            border-color var(--transition-speed) ease;
}

/* ページロードフェード */
.grain {
	position: fixed;
	inset: 0;
	pointer-events: none;
	opacity: var(--grain-opacity);
	background-image: radial-gradient(circle at 1px 1px, var(--color-white) 1px, transparent 0);
	background-size: 4px 4px;
	z-index: 999;
}

.page-loader {
	position: fixed;
	inset: 0;
	z-index: 9999;
	display: grid;
	place-items: center;
	background: var(--bg-base);
	transition: opacity 0.6s var(--ease-out-expo), visibility 0.6s var(--ease-out-expo);
}

.page-loader.is-hidden {
	opacity: 0;
	visibility: hidden;
}

.page-loader__panel {
	text-align: center;
}

/* 3. その他ページ用：虫眼鏡スキャンローダー */
.search-loader {
	width: 120px;
	height: 100px;
	margin: 24px auto;
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
}

.search-loader__grid {
	width: 80px;
	height: 60px;
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	grid-template-rows: repeat(3, 1fr);
	gap: 6px;
	opacity: 0.15;
}

.search-loader__cell {
	background: var(--text-primary);
	border-radius: 2px;
	animation: search-grid-blink 2s infinite ease-in-out;
}

.search-loader__cell:nth-child(2) { animation-delay: 0.2s; }
.search-loader__cell:nth-child(3) { animation-delay: 0.4s; }
.search-loader__cell:nth-child(4) { animation-delay: 0.6s; }
.search-loader__cell:nth-child(5) { animation-delay: 0.8s; }
.search-loader__cell:nth-child(6) { animation-delay: 1.0s; }
.search-loader__cell:nth-child(7) { animation-delay: 1.2s; }
.search-loader__cell:nth-child(8) { animation-delay: 1.4s; }
.search-loader__cell:nth-child(9) { animation-delay: 1.6s; }

.search-loader__glass {
	position: absolute;
	width: 32px;
	height: 32px;
	border: 3px solid var(--color-accent-secondary);
	border-radius: 50%;
	background: rgba(0, 240, 255, 0.08);
	box-shadow: 0 0 10px rgba(0, 240, 255, 0.3), inset 0 0 5px rgba(0, 240, 255, 0.2);
	animation: search-glass-move 4s ease-in-out infinite;
}

.search-loader__glass::after {
	content: "";
	position: absolute;
	bottom: -10px;
	right: -10px;
	width: 3px;
	height: 12px;
	background: var(--color-accent-secondary);
	transform: rotate(-45deg);
	transform-origin: top left;
}

@keyframes search-grid-blink {
	0%, 100% { opacity: 0.3; }
	50% { opacity: 0.9; background: var(--color-accent-secondary); }
}

@keyframes search-glass-move {
	0% { transform: translate(-25px, -20px); }
	25% { transform: translate(25px, -10px); }
	50% { transform: translate(15px, 20px); }
	75% { transform: translate(-20px, 15px); }
	100% { transform: translate(-25px, -20px); }
}

/* コンテナ設定 */
.container {
	width: min(1140px, 92vw);
	margin: 0 auto;
	padding: 80px 0;
}

/* 独自ヘッダー (画面上部全体) */
header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	background: var(--glass-bg);
	border-bottom: 1px solid var(--glass-border);
	backdrop-filter: blur(20px);
	padding: 12px 0;
	box-shadow: 0 4px 20px var(--glass-shadow);
	transition: background-color var(--transition-speed) ease,
	            border-color var(--transition-speed) ease,
	            box-shadow var(--transition-speed) ease;
}

header nav {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: min(1140px, 92vw);
	margin: 0 auto;
}

.brand {
	display: flex;
	align-items: center;
	gap: 12px;
	text-decoration: none;
	color: var(--color-white);
	font-weight: 700;
	letter-spacing: 0.1em;
}

.brand-mark {
	background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
	color: var(--color-black);
	padding: 2px 8px;
	border-radius: 8px;
	font-size: 0.9rem;
}

.nav-links {
	display: flex;
	align-items: center;
	gap: 20px;
}

.nav-item {
	color: var(--text-muted);
	text-decoration: none;
	font-size: 0.9rem;
	font-weight: 500;
	letter-spacing: 0.05em;
	transition: var(--transition-quick);
}

.nav-item:hover {
	color: var(--color-white);
	text-decoration: none;
}

/* ヒーローセクション */
.hero {
	padding: 120px 0 60px;
}

.eyebrow {
	font-size: 0.85rem;
	text-transform: uppercase;
	letter-spacing: 0.25em;
	color: var(--color-accent-secondary);
	font-weight: 800;
	display: block;
	margin-bottom: 16px;
}

.hero h1 {
	font-size: clamp(2.4rem, 6vw, 4.4rem);
	line-height: 1.1;
	font-weight: 800;
	letter-spacing: -0.02em;
	margin-bottom: 24px;
	color: var(--color-white);
}

.hero p {
	font-size: 1.15rem;
	color: var(--text-muted);
	max-width: 580px;
	font-weight: 700;
	margin-bottom: 36px;
}

/* 独自ボタン */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 12px 28px;
	font-size: 0.9rem;
	font-weight: 500;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	text-decoration: none;
	border-radius: 30px;
	transition: var(--transition-smooth);
	cursor: pointer;
}

.btn-primary {
	background: var(--btn-primary-bg);
	color: var(--btn-primary-text);
}

.btn-primary:hover {
	background: var(--color-accent);
	color: var(--color-black);
	box-shadow: 0 0 20px rgba(111, 0, 255, 0.4);
	text-decoration: none;
}

.btn-secondary {
	background: transparent;
	color: var(--color-white);
	border: 1px solid var(--btn-secondary-border);
}

.btn-secondary:hover {
	background: var(--btn-secondary-hover-bg);
	border-color: var(--color-white);
	text-decoration: none;
}

/* グリッドレイアウト */
.grid {
	display: grid;
	grid-template-columns: repeat(12, 1fr);
	gap: 24px;
}

.span-6 { grid-column: span 6; }
.span-12 { grid-column: span 12; }

/* 独自ガラスパネル（Material Designの排除） */
.glass-card {
	background: var(--glass-bg);
	border: 1px solid var(--glass-border);
	border-radius: 24px;
	padding: 36px;
	transition: var(--transition-smooth);
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

.glass-card:hover {
	border-color: var(--glass-border-hover);
	box-shadow: 0 15px 40px var(--glass-shadow);
	transform: translateY(-4px);
}

.glass-card h3 {
	font-size: 1.4rem;
	font-weight: 800;
	margin: 16px 0 12px;
	color: var(--color-white);
}

.glass-card p {
	color: var(--text-muted);
	font-weight: 700;
	margin-bottom: 24px;
}

.card-link {
	color: var(--color-accent-secondary);
	font-weight: 700;
	font-size: 0.9rem;
	letter-spacing: 0.05em;
	text-decoration: none;
	margin-top: auto;
	transition: var(--transition-quick);
}

.card-link:hover {
	letter-spacing: 0.1em;
	text-decoration: none;
}

/* スムーズアニメーション表示 */
.reveal {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

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

/* フッター */
footer {
	padding: 60px 0;
	text-align: center;
	border-top: 1px solid var(--glass-border);
	color: var(--text-muted);
	font-size: 0.85rem;
}

/* レスポンシブ設定 */
@media (max-width: 768px) {
	.span-6 { grid-column: span 12; }
	.nav-links { display: none; } /* モバイル簡易対応 */
	header { padding: 12px 20px; }
}

/* --- HEADER TOP BAR LAYOUT --- */
.header-top-bar {
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	margin: 0 auto 8px;
	font-size: 0.72rem;
	color: var(--text-muted);
	border-bottom: 1px solid var(--glass-border);
	padding-bottom: 6px;
	letter-spacing: 0.05em;
	width: min(1140px, 92vw);
}

.header-top-left {
	display: flex;
	align-items: center;
	gap: 16px;
	justify-self: start;
}

.header-top-center {
	justify-self: center;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 2px;
	font-family: monospace;
}

.header-top-center .world-clocks {
	display: flex;
	gap: 12px;
	font-variant-numeric: tabular-nums;
	font-weight: 700;
	color: var(--text-primary);
}

.header-top-center .device-info {
	font-size: 0.65rem;
	color: var(--text-muted);
}

.header-top-right {
	justify-self: end;
}

.status-indicator {
	font-weight: 700;
	color: var(--color-accent-tertiary);
}

.theme-switcher-container {
	display: flex;
	align-items: center;
	gap: 6px;
}

.theme-label {
	font-weight: 700;
	font-size: 0.65rem;
}

.theme-select {
	background: var(--glass-bg);
	color: var(--text-primary);
	border: 1px solid var(--glass-border);
	border-radius: 6px;
	padding: 2px 8px;
	font-size: 0.68rem;
	font-weight: 700;
	cursor: pointer;
	outline: none;
	transition: var(--transition-quick);
	font-family: inherit;
}

.theme-select option {
	background: var(--bg-base);
	color: var(--text-primary);
}

@media (max-width: 768px) {
	.header-top-bar {
		grid-template-columns: 1fr;
		gap: 6px;
		text-align: center;
	}
	.header-top-left, .header-top-center, .header-top-right {
		justify-self: center;
		justify-content: center;
	}
}

/* --- DYNAMIC ISLAND CLOCK --- */
.dynamic-island {
	position: fixed;
	top: 72px;
	left: 50%;
	transform: translateX(-50%);
	z-index: 1005;
	background: var(--glass-bg);
	border: 1px solid var(--glass-border);
	backdrop-filter: blur(20px);
	padding: 8px 24px;
	border-radius: 30px;
	box-shadow: 0 8px 32px var(--glass-shadow);
	display: flex;
	align-items: center;
	gap: 20px;
	font-family: monospace;
	font-size: 0.75rem;
	color: var(--text-primary);
	transition: transform 0.4s var(--ease-out-expo), opacity 0.4s ease, border-color var(--transition-speed) ease;
}

.dynamic-island:hover {
	border-color: var(--glass-border-hover);
	transform: translateX(-50%) scale(1.02);
}

.dynamic-island .world-clocks {
	display: flex;
	gap: 16px;
	font-weight: 700;
}

.dynamic-island .device-info-island {
	font-size: 0.65rem;
	color: var(--text-muted);
	border-left: 1px solid var(--glass-border);
	padding-left: 16px;
}

/* Hide original top bar layout */
.header-top-bar {
	display: none !important;
}

/* --- MAIN HEADER LAYOUT ADJUSTMENTS --- */
.main-header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	background: var(--glass-bg);
	border-bottom: 1px solid var(--glass-border);
	backdrop-filter: blur(20px);
	padding: 14px 0;
	box-shadow: 0 4px 20px var(--glass-shadow);
	transition: transform 0.4s var(--ease-out-expo), background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.header-nav {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: min(1140px, 92vw);
	margin: 0 auto;
}

.brand {
	display: flex;
	align-items: center;
	gap: 12px;
	text-decoration: none;
	color: var(--color-white);
}

.brand-text-container {
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.brand-name {
	font-weight: 800;
	font-size: 1.1rem;
	letter-spacing: 0.05em;
	line-height: 1.1;
}

.brand-status {
	font-size: 0.65rem;
	color: var(--text-muted);
	font-weight: 500;
}

.desktop-nav-container {
	display: flex;
	align-items: center;
	gap: 24px;
	margin-left: auto;
}

/* --- MOBILE BOTTOM NAVIGATION & DRAWER --- */
.mobile-bottom-bar {
	display: none;
}

.mobile-drawer {
	position: fixed;
	bottom: -100%;
	left: 0;
	right: 0;
	background: var(--glass-bg);
	border-top: 1px solid var(--glass-border);
	backdrop-filter: blur(25px);
	z-index: 1004;
	border-radius: 24px 24px 0 0;
	box-shadow: 0 -10px 40px var(--glass-shadow);
	transition: bottom 0.4s var(--ease-out-expo);
	padding: 24px 20px 40px;
	max-height: 80vh;
	overflow-y: auto;
}

.mobile-drawer.drawer-open {
	bottom: 0;
}

.drawer-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 20px;
	padding-bottom: 12px;
	border-bottom: 1px solid var(--glass-border);
}

.drawer-title {
	font-weight: 800;
	font-size: 1rem;
	letter-spacing: 0.1em;
	color: var(--color-white);
}

.drawer-close {
	background: none;
	border: none;
	color: var(--text-primary);
	font-size: 1.8rem;
	cursor: pointer;
	line-height: 1;
}

.drawer-links {
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.drawer-item {
	color: var(--text-muted);
	text-decoration: none;
	font-size: 1.1rem;
	font-weight: 700;
	padding: 8px 0;
	transition: var(--transition-quick);
}

.drawer-item:hover {
	color: var(--color-white);
}

/* --- HIDE / SHOW SCROLL TRANSITIONS --- */
.header-hidden {
	transform: translateY(-100%);
}

.island-hidden {
	transform: translate(-50%, -150%);
}

.bar-hidden {
	transform: translateY(150%) !important;
}

/* --- MOBILE SPECIFIC MEDIA QUERY --- */
@media (max-width: 768px) {
	.desktop-nav-container {
		display: none;
	}
	
	.main-header {
		padding: 12px 0;
	}
	
	.dynamic-island {
		top: auto;
		bottom: 84px;
		left: 50%;
		transform: translateX(-50%);
		width: max-content;
		padding: 6px 16px;
		gap: 12px;
		box-shadow: 0 4px 20px var(--glass-shadow);
	}
	
	.dynamic-island:hover {
		transform: translateX(-50%);
	}
	
	.dynamic-island .device-info-island {
		display: none;
	}
	
	.dynamic-island.island-hidden {
		transform: translate(-50%, 180%);
	}
	
	.mobile-bottom-bar {
		display: flex;
		position: fixed;
		bottom: 16px;
		left: 50%;
		transform: translateX(-50%);
		width: calc(100% - 32px);
		max-width: 480px;
		z-index: 1003;
		background: var(--glass-bg);
		border: 1px solid var(--glass-border);
		backdrop-filter: blur(20px);
		border-radius: 30px;
		padding: 10px 24px;
		box-shadow: 0 8px 32px var(--glass-shadow);
		align-items: center;
		justify-content: space-between;
		transition: transform 0.4s var(--ease-out-expo), opacity 0.4s ease;
	}
	
	.mobile-brand-btn {
		display: flex;
		align-items: center;
		gap: 10px;
		background: none;
		border: none;
		color: var(--text-primary);
		cursor: pointer;
		font-family: inherit;
		font-weight: 700;
	}
	
	.mobile-menu-text {
		font-size: 0.9rem;
	}
	
	/* Hamburger Icon */
	.hamburger-icon {
		display: flex;
		flex-direction: column;
		justify-content: space-between;
		width: 18px;
		height: 12px;
	}
	
	.hamburger-icon span {
		display: block;
		width: 100%;
		height: 2px;
		background-color: var(--text-primary);
		border-radius: 2px;
		transition: var(--transition-quick);
	}
	
	.hamburger-icon.is-open span:nth-child(1) {
		transform: translateY(5px) rotate(45deg);
	}
	
	.hamburger-icon.is-open span:nth-child(2) {
		opacity: 0;
	}
	
	.hamburger-icon.is-open span:nth-child(3) {
		transform: translateY(-5px) rotate(-45deg);
	}
	
	.mobile-theme-container {
		display: flex;
		align-items: center;
	}
	
	.theme-select-mobile {
		background: none;
		border: none;
		font-size: 1.2rem;
		cursor: pointer;
		outline: none;
	}
}