/* ============================================
   ジャディット株式会社 - プレミアムアニメーション対応スタイル
   200万円予算の高品質デザイン
   ============================================ */

/* ========== ベース設定 ========== */
:root {
    /* カラースキーム */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-dark: #333333;
    --color-gray: #666666;
    --color-gray-light: #CCCCCC;
    --color-gray-lighter: #F5F5F5;
    --color-samurai-blue: #0033A0;
    --color-samurai-blue-light: #0047D1;
    --color-samurai-blue-dark: #002080;
    
    /* タイポグラフィ */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-secondary: 'Montserrat', sans-serif;
    
    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* トランジション */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-gray-dark);
    background: var(--color-white);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== プレミアムローディング画面 ========== */
.premium-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-black);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.premium-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-logo {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-white);
    font-family: var(--font-secondary);
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.loader-bar {
    width: 300px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.loader-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--color-samurai-blue), var(--color-samurai-blue-light));
    width: 0%;
    transition: width 0.3s ease;
    box-shadow: 0 0 20px var(--color-samurai-blue);
}

/* ========== スクロールプログレスバー ========== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-samurai-blue), var(--color-samurai-blue-light));
    z-index: 9999;
    transition: width 0.1s linear;
    box-shadow: 0 0 15px var(--color-samurai-blue);
}

/* ========== ヘッダー（プレミアム版） ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    z-index: 1000;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0);
}

.site-header.scrolled {
    background: rgba(0, 0, 0, 0.95);
    padding: 1rem 0;
    box-shadow: 0 4px 30px rgba(0, 51, 160, 0.1);
    border-bottom: 1px solid rgba(0, 51, 160, 0.2);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-white);
    text-decoration: none;
    font-family: var(--font-secondary);
    letter-spacing: 0.1em;
    position: relative;
    transition: all var(--transition-base);
}

.site-logo::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-samurai-blue);
    transition: width var(--transition-base);
}

.site-logo:hover::after {
    width: 100%;
}

.site-logo:hover {
    color: var(--color-samurai-blue-light);
    text-shadow: 0 0 20px rgba(0, 51, 160, 0.5);
}

/* ナビゲーション */
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.main-nav a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    position: relative;
    transition: all var(--transition-base);
    padding: 0.5rem 0;
}

.main-nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-samurai-blue);
    transition: width var(--transition-base);
}

.main-nav a:hover {
    color: var(--color-samurai-blue-light);
}

.main-nav a:hover::before {
    width: 100%;
}

.main-nav a.active {
    color: var(--color-samurai-blue-light);
}

.main-nav a.active::before {
    width: 100%;
}

/* ハンバーガーメニュー */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 30px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-base);
}

.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(8px, -8px);
}

/* ========== ヒーローセクション（プレミアム） ========== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
    overflow: hidden;
    padding: 0 2rem;
}

/* 背景アニメーション */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.hero-gradient {
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background: radial-gradient(circle at center, 
        rgba(0, 51, 160, 0.15) 0%, 
        rgba(0, 51, 160, 0.05) 30%,
        transparent 70%);
    animation: gradientMove 20s ease-in-out infinite;
}

@keyframes gradientMove {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(10%, 10%) scale(1.1); }
    66% { transform: translate(-10%, -10%) scale(0.9); }
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--color-samurai-blue);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 8s infinite ease-in-out;
    box-shadow: 0 0 10px var(--color-samurai-blue);
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100vh) translateX(0);
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) translateX(100px);
    }
}

/* パーティクルの配置 */
.particle:nth-child(1) { left: 10%; animation-delay: 0s; animation-duration: 8s; }
.particle:nth-child(2) { left: 20%; animation-delay: 1s; animation-duration: 9s; }
.particle:nth-child(3) { left: 30%; animation-delay: 2s; animation-duration: 7s; }
.particle:nth-child(4) { left: 40%; animation-delay: 3s; animation-duration: 10s; }
.particle:nth-child(5) { left: 50%; animation-delay: 4s; animation-duration: 8.5s; }
.particle:nth-child(6) { left: 60%; animation-delay: 0.5s; animation-duration: 9.5s; }
.particle:nth-child(7) { left: 70%; animation-delay: 1.5s; animation-duration: 8s; }
.particle:nth-child(8) { left: 80%; animation-delay: 2.5s; animation-duration: 7.5s; }
.particle:nth-child(9) { left: 90%; animation-delay: 3.5s; animation-duration: 9s; }
.particle:nth-child(10) { left: 15%; animation-delay: 4.5s; animation-duration: 8.2s; }

/* ヒーローコンテンツ */
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-samurai-blue-light);
    font-weight: 500;
    letter-spacing: 0.3em;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.3s forwards;
    text-transform: uppercase;
    text-shadow: 0 0 20px rgba(0, 51, 160, 0.5);
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 2rem;
    line-height: 1.2;
    font-family: var(--font-secondary);
    letter-spacing: 0.05em;
}

/* 文字ごとのアニメーション用 */
.hero-title .char {
    display: inline-block;
    opacity: 0;
    animation: charFadeIn 0.8s ease forwards;
}

@keyframes charFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px) rotateX(-90deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

.hero-description {
    font-size: 1.3rem;
    color: var(--color-gray-light);
    line-height: 1.8;
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1s forwards;
}

/* マウス追従グロー効果 */
.hero-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 51, 160, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

/* ========== プレミアムボタン ========== */
.premium-btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    background: linear-gradient(135deg, var(--color-samurai-blue), var(--color-samurai-blue-light));
    color: var(--color-white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 50px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: 0 10px 30px rgba(0, 51, 160, 0.3);
    border: 2px solid transparent;
    letter-spacing: 0.05em;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1.3s forwards;
}

.premium-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.premium-btn:hover::before {
    width: 400px;
    height: 400px;
}

.premium-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 51, 160, 0.5);
    border-color: var(--color-samurai-blue-light);
}

.premium-btn span {
    position: relative;
    z-index: 1;
}

/* ボタンのリップルエフェクト */
.premium-btn .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ========== セクション共通スタイル ========== */
.section {
    padding: var(--spacing-xl) 2rem;
    position: relative;
    overflow: hidden;
}

.section-dark {
    background: var(--color-black);
    color: var(--color-white);
}

.section-light {
    background: var(--color-white);
    color: var(--color-gray-dark);
}

.section-gray {
    background: var(--color-gray-lighter);
    color: var(--color-gray-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* セクションタイトル */
.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-secondary);
    letter-spacing: 0.05em;
    position: relative;
    padding-bottom: 1.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-samurai-blue), var(--color-samurai-blue-light));
    border-radius: 2px;
}

.section-description {
    text-align: center;
    font-size: 1.2rem;
    color: var(--color-gray);
    max-width: 700px;
    margin: 0 auto 4rem;
    line-height: 1.8;
}

/* ========== プレミアムカード（3Dホバー） ========== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.premium-card {
    background: var(--color-white);
    border-radius: 20px;
    padding: 2.5rem;
    position: relative;
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.premium-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 51, 160, 0.03), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.premium-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    border-color: var(--color-samurai-blue);
}

.premium-card:hover::before {
    opacity: 1;
}

/* カードのグロー効果 */
.premium-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 51, 160, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.premium-card:hover::after {
    opacity: 1;
}

.card-icon {
    font-size: 3rem;
    color: var(--color-samurai-blue);
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: all var(--transition-base);
}

.premium-card:hover .card-icon {
    transform: scale(1.1) rotateY(360deg);
    text-shadow: 0 0 20px rgba(0, 51, 160, 0.5);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
    font-family: var(--font-secondary);
}

.card-description {
    color: var(--color-gray);
    line-height: 1.8;
    font-size: 1rem;
}

/* ========== 統計カウンター ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    position: relative;
}

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-samurai-blue-light);
    font-family: var(--font-secondary);
    line-height: 1;
    margin-bottom: 1rem;
    display: inline-block;
    position: relative;
}

.stat-number::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--color-samurai-blue);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.stat-item.active .stat-number::after {
    opacity: 1;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--color-gray-light);
    font-weight: 500;
}

/* ========== スクロールアニメーション ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

.rotate-in {
    opacity: 0;
    transform: rotate(-10deg) scale(0.9);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.rotate-in.visible {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* ========== フッター ========== */
.site-footer {
    background: var(--color-black);
    color: var(--color-gray-light);
    padding: 4rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-samurai-blue), transparent);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: var(--color-white);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-family: var(--font-secondary);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: var(--color-gray-light);
    text-decoration: none;
    transition: all var(--transition-base);
    display: inline-block;
}

.footer-section a:hover {
    color: var(--color-samurai-blue-light);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* ========== ページトップボタン ========== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-samurai-blue), var(--color-samurai-blue-light));
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
    box-shadow: 0 5px 20px rgba(0, 51, 160, 0.3);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 51, 160, 0.5);
}

/* ========== アニメーションキーフレーム ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ========== モーション削減設定 ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========== 2カラムレイアウト（レスポンシブ対応） ========== */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.icon-grid-2x2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ========== レスポンシブデザイン ========== */
@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        padding: 6rem 2rem 2rem;
        transition: right var(--transition-base);
        z-index: 999;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 2rem;
    }
    
    .main-nav a {
        font-size: 1.2rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    /* スマホで2カラムを1カラムに */
    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .icon-grid-2x2 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* 企業理念をスマホで左寄せ */
    .company-philosophy {
        text-align: left !important;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .premium-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}