/*
Theme Name: 福寿荘業務マニュアル
Theme URI: https://fukujuso.example.com
Author: 福寿荘
Author URI: https://fukujuso.example.com
Description: 福寿荘の介護業務マニュアル動画サイト用テーマ。管理画面から文章・画像・動画を簡単に編集できます。
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: fukujuso-manual
Tags: custom-background, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready
*/

/* ========================================
   リセット & 基本設定
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット */
    --color-white: #ffffff;
    --color-cream: #FFF9E6;
    --color-yellow: #FFD54F;
    --color-yellow-light: #FFECB3;
    --color-orange: #FF9800;
    --color-orange-dark: #F57C00;
    --color-black: #333333;
    --color-gray: #666666;
    --color-gray-light: #f5f5f5;
    
    /* カテゴリカラー */
    --color-disaster: #FF5252;
    --color-infection: #42A5F5;
    --color-care: #66BB6A;
    --color-support: #FFA726;
    
    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* フォント */
    --font-primary: 'Noto Sans JP', sans-serif;
    
    /* トランジション */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-black);
    background-color: var(--color-white);
    line-height: 1.8;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   ヘッダー
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-orange);
}

.nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav a {
    text-decoration: none;
    color: var(--color-black);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-orange);
    transition: var(--transition);
}

.nav a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-black);
    transition: var(--transition);
}

/* ========================================
   ファーストビュー
======================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-white);
    font-weight: 300;
    text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.5);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   セカンドビュー（イントロ）
======================================== */
.intro {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--color-yellow), var(--color-orange));
    border-radius: 2px;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--color-gray);
    max-width: 800px;
    margin: var(--spacing-lg) auto 0;
}

/* ========================================
   カテゴリセクション
======================================== */
.category {
    padding: var(--spacing-xl) 0;
}

.disaster-category {
    background: linear-gradient(to bottom, var(--color-white) 0%, #FFF3E0 100%);
}

.infection-category {
    background: linear-gradient(to bottom, #E3F2FD 0%, var(--color-white) 100%);
}

.daily-care-category {
    background: linear-gradient(to bottom, var(--color-white) 0%, #F1F8E9 100%);
}

.daily-support-category {
    background: linear-gradient(to bottom, #FFF3E0 0%, var(--color-white) 100%);
}

.category-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.category-icon {
    display: inline-block;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    animation: pulse 2s infinite;
}

.disaster-category .category-icon {
    background: linear-gradient(135deg, var(--color-disaster), #FF8A80);
}

.infection-category .category-icon {
    background: linear-gradient(135deg, var(--color-infection), #90CAF9);
}

.daily-care-category .category-icon {
    background: linear-gradient(135deg, var(--color-care), #A5D6A7);
}

.daily-support-category .category-icon {
    background: linear-gradient(135deg, var(--color-support), #FFB74D);
}

.category-icon i {
    font-size: 2.5rem;
    color: var(--color-white);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.category-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.category-description {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--color-gray);
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

/* ========================================
   ビデオカード
======================================== */
.video-card {
    background-color: var(--color-white);
    border-radius: 20px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* 動画タイトル（上部） */
.video-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.video-title i {
    color: var(--color-orange);
}

/* 動画メタ情報（下部） */
.video-meta {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--color-gray-light);
}

.video-category-label {
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.video-category-label:first-child {
    margin-top: 0;
}

.large-category {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-black);
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(to right, var(--color-yellow-light), var(--color-cream));
    border-radius: 8px;
}

.video-subtopics {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.video-subtopics li {
    font-size: 0.9rem;
    color: var(--color-gray);
    padding: 4px 12px;
    background-color: var(--color-gray-light);
    border-radius: 15px;
}

.video-container {
    margin-bottom: var(--spacing-md);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 15px;
    background-color: var(--color-black);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.lang-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--color-orange);
    background-color: var(--color-white);
    color: var(--color-orange);
    font-weight: 600;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.lang-btn:hover {
    background-color: var(--color-yellow-light);
}

.lang-btn.active {
    background-color: var(--color-orange);
    color: var(--color-white);
}

/* ========================================
   フッター
======================================== */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ========================================
   レスポンシブデザイン
======================================== */
@media screen and (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--color-white);
        transition: var(--transition);
        padding: var(--spacing-lg);
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav ul {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav a {
        font-size: 1.2rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .category-title {
        font-size: 1.8rem;
    }
    
    .intro-text,
    .category-description {
        font-size: 1rem;
    }
    
    .video-card {
        padding: var(--spacing-md);
    }
    
    .video-title {
        font-size: 1.1rem;
    }
    
    .large-category {
        font-size: 1.2rem;
    }
    
    .video-subtopics li {
        font-size: 0.85rem;
    }
    
    .lang-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
		white-space: nowrap;
    }
    
	.video-controls {
		gap: 8px;
	 }
	
    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media screen and (max-width: 480px) {
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 1.4rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .category-icon {
        width: 60px;
        height: 60px;
    }
    
	.lang-btn {
    padding: 6px 12px;
    font-size: 0.8rem;
    }
	
	.video-controls {
    gap: 6px;
    }
	
    .category-icon i {
        font-size: 2rem;
    }
}

/* ========================================
   アクセシビリティ
======================================== */
:focus-visible {
    outline: 3px solid var(--color-orange);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}