@charset "UTF-8";

		/* -----------------------------------------------------------------
		   CSS Variables (Common)
		   ----------------------------------------------------------------- */
		:root {
			--head_color: #524C42;
			--back_color: #706C65;
			--pop_color: #D6C6A9;
			--tab_color: #AEAEAE;
			--font_light_color: #D7D7D7;
			--font_dark_color: #7B6464;
			--font_tab_color: #7B7B7B;
			--icon_red_color: #CE6B6B;
			--icon_red_hover_color: #C73333;
			--icon_blue_color: #47ACD2;
			--icon_blue_hover_color: #4171C8;
			--btn_perple_color: #9F58B1;
			--btn_perple_hover: #8e4da0;
			--fukidashi_color: #333333;
			--border-radius: 12px;
			--shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
		}

		/* -----------------------------------------------------------------
		   Reset & Base Styles
		   ----------------------------------------------------------------- */
		*, *::before, *::after {
			box-sizing: border-box;
			margin: 0;
			padding: 0;
		}

		body {
			font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
			background-color: var(--back_color);
			color: var(--font_light_color);
			line-height: 1.6;
			min-height: 100vh;
			display: flex;
			flex-direction: column;
		}

		/* -----------------------------------------------------------------
		   Header & Nav
		   ----------------------------------------------------------------- */
		.header {
			background-color: var(--head_color);
			padding: 1.5rem 2rem;
			text-align: center;
			box-shadow: 0 4px 12px rgba(0,0,0,0.1);
		}

		.header h1 {
			font-size: 1.5rem;
			letter-spacing: 0.05em;
			color: var(--pop_color);
			margin-bottom: 1rem;
		}

		/* Global Navigation (Page Links) */
		.global-nav {
			display: flex;
			justify-content: center;
			gap: 1rem;
			flex-wrap: wrap;
		}

		.nav-link {
			text-decoration: none;
			color: var(--tab_color);
			font-weight: bold;
			padding: 0.5rem 1rem;
			border-radius: 20px;
			transition: all 0.3s;
			border: 1px solid transparent;
		}

		.nav-link:hover {
			color: var(--pop_color);
			background-color: rgba(255,255,255,0.05);
		}

		.nav-link.current {
			color: var(--head_color);
			background-color: var(--pop_color);
			border-color: var(--pop_color);
		}

		.main-container {
			flex: 1;
			width: 100%;
			max-width: 1200px;
			margin: 0 auto;
			padding: 2rem;
		}

		.back-link {
			width:100px;
			font-family: var(--font-en);
			color: #fff;
			text-decoration: none;
			font-size: 0.9rem;
			border: 1px solid rgba(255,255,255,0.3);
			padding: 0.5rem 1rem;
			border-radius: 20px;
			transition: all 0.3s;
			cursor: pointer;
			position: absolute;
			top:15px; left:15px;
		}

		.back-link:hover {
			background-color: rgba(255,255,255,0.1);
			border-color: #fff;
		}

		/* -----------------------------------------------------------------
		   Tool Area
		   ----------------------------------------------------------------- */
		.tool-wrapper {
			background-color: var(--head_color);
			padding: 2rem;
			border-radius: var(--border-radius);
			box-shadow: var(--shadow);
			display: grid;
			gap: 2rem;
			grid-template-columns: 1fr 1fr;
			align-items: start;
		}

		/* Input Side */
		.input-section {
			display: flex;
			flex-direction: column;
			gap: 1.5rem;
		}

		.input-group {
			display: flex;
			flex-direction: column;
		}

		.label-text {
			font-size: 0.9rem;
			color: var(--tab_color);
			margin-bottom: 0.5rem;
			font-weight: bold;
		}

		.text-input {
			width: 100%;
			padding: 1rem;
			font-size: 1rem;
			background-color: #fcfcfc;
			color: var(--font_dark_color);
			border: 2px solid var(--tab_color);
			border-radius: 8px;
			transition: border-color 0.3s;
		}
		.text-input:focus {
			outline: none;
			border-color: var(--icon_blue_color);
		}

		.btn-generate {
			background-color: var(--btn_perple_color);
			color: #fff;
			font-size: 1.1rem;
			padding: 1rem;
			border: none;
			border-radius: 50px;
			cursor: pointer;
			font-weight: bold;
			box-shadow: 0 4px 10px rgba(0,0,0,0.3);
			transition: all 0.3s ease;
			text-align: center;
		}
		.btn-generate:hover {
			background-color: var(--btn_perple_hover);
			transform: translateY(-2px);
		}

		/* Output Side */
		.output-section {
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			background-color: rgba(0,0,0,0.2);
			border-radius: var(--border-radius);
			padding: 2rem;
			min-height: 350px;
		}

		/* QR Code Container */
		#qrcode {
			padding: 1rem;
			background-color: #fff;
			border-radius: 8px;
			box-shadow: 0 5px 15px rgba(0,0,0,0.3);
			margin-bottom: 1.5rem;
			/* ライブラリがimgタグを生成します */
		}

		#qrcode img {
			display: block; /* 余白除去 */
			max-width: 100%;
			height: auto;
		}

		.btn-download {
			display: none; /* 初期非表示 */
			background-color: var(--icon_red_color);
			color: #fff;
			padding: 0.8rem 2rem;
			border-radius: 50px;
			text-decoration: none;
			font-weight: bold;
			transition: all 0.3s;
			box-shadow: 0 4px 10px rgba(0,0,0,0.2);
		}
		.btn-download:hover {
			background-color: var(--icon_red_hover_color);
			transform: translateY(-2px);
		}

		/* -----------------------------------------------------------------
		   Visual / Description
		   ----------------------------------------------------------------- */
		.visual-section {
			display: grid;
			grid-template-columns: 1fr;
			margin-top: 2rem;
		}

		.info-box {
			background-color: rgba(0,0,0,0.2);
			padding: 1.5rem;
			border-radius: var(--border-radius);
			color: var(--pop_color);
		}
		.info-box h2 {
			font-size: 1.2rem;
			margin-bottom: 1rem;
			border-bottom: 1px solid var(--tab_color);
			padding-bottom: 0.5rem;
		}
		.info-box p {
			font-size: 0.95rem;
			color: var(--font_light_color);
		}

		/* -----------------------------------------------------------------
		   Responsive
		   ----------------------------------------------------------------- */
		@media (max-width: 800px) {
			.tool-wrapper {
				grid-template-columns: 1fr;
			}
			.output-section {
				min-height: auto;
			}
		}

		footer {
			text-align: center;
			padding: 2rem;
			font-size: 0.8rem;
			color: var(--tab_color);
			margin-top: auto;
		}