/* ========================================
   株式会社紺野商事 コーポレートサイト
   カラースキーム: ダークネイビー × ベージュゴールド × ライトベージュ
   ======================================== */

:root {
    /* ダークネイビー配色 */
    --color-navy-darkest: #0a0d14;
    --color-navy-dark: #0f1419;
    --color-navy-base: #151921;
    --color-navy-light: #1a1f2b;
    --color-navy-lighter: #202633;
    
    /* 明るい背景色（清潔感・バランス用） */
    --color-light-bg: #f8f7f4;
    --color-light-bg-alt: #faf9f6;
    --color-light-beige: #f5f3ed;
    --color-cream: #fffef9;
    
    /* ベージュゴールドアクセント */
    --color-accent: #b8a37b;
    --color-accent-light: #c9b690;
    --color-accent-dark: #a39167;
    
    /* テキストカラー */
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b8c3;
    --color-text-muted: #6b7280;
    
    /* 明るい背景用のテキストカラー */
    --color-text-dark: #2d2d2d;
    --color-text-dark-secondary: #5a5a5a;
    --color-text-dark-muted: #8a8a8a;
    
    /* グラデーション */
    --gradient-primary: linear-gradient(135deg, var(--color-navy-darkest) 0%, var(--color-navy-dark) 50%, var(--color-navy-base) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-accent) 50%, var(--color-accent-light) 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(10, 13, 20, 0) 0%, rgba(10, 13, 20, 0.8) 100%);
    --gradient-light: linear-gradient(135deg, var(--color-light-bg) 0%, var(--color-cream) 100%);
    
    /* シャドウ */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-accent: 0 8px 24px rgba(184, 163, 123, 0.2);
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-light-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
    
    /* トランジション */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* フォント */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-display: 'Cormorant Garamond', serif;
}

/* ========================================
   リセット & ベーススタイル
   ======================================== */

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

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

body {
    font-family: var(--font-primary);
    background: var(--color-navy-darkest);
    color: var(--color-text-primary);
    line-height: 1.8;
    overflow-x: hidden;
    position: relative;
    max-width: 1920px;
    margin: 0 auto;
}

/* 背景テクスチャ */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(184, 163, 123, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(184, 163, 123, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ========================================
   ヘッダー & ナビゲーション
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    background: rgba(10, 13, 20, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(184, 163, 123, 0.1);
    z-index: 999;
    transition: all var(--transition-base);
}

.header.scrolled {
    padding: 1rem 0;
    background: rgba(10, 13, 20, 0.95);
    box-shadow: var(--shadow-md);
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

.logo:hover {
    opacity: 0.85;
    transform: translateY(-2px);
}

.logo-image {
    height: 50px;
    width: 50px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(184, 163, 123, 0.4));
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.logo:hover .logo-image {
    filter: drop-shadow(0 4px 16px rgba(184, 163, 123, 0.6));
    transform: rotate(5deg) scale(1.05);
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.logo-main {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: 0.08em;
    line-height: 1;
    white-space: nowrap;
}

.logo-sub {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    line-height: 1;
    white-space: nowrap;
}

.logo span {
    color: var(--color-accent);
    font-weight: 300;
}

.nav {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
    position: relative;
}

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

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    position: relative;
    z-index: 1001;
    padding: 0.5rem;
    transition: transform 0.3s ease;
}

.menu-toggle:hover {
    transform: scale(1.1);
    color: var(--color-accent);
}

/* ========================================
   ヒーローセクション
   ======================================== */

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* スライダー */
.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out, transform 20s ease-out;
    transform: scale(1);
}

.hero-slide.active {
    opacity: 1;
    animation: kenburns 20s ease-out infinite;
}

@keyframes kenburns {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.1);
    }
}

/* オーバーレイ */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg, 
        rgba(10, 13, 20, 0.85) 0%, 
        rgba(15, 20, 25, 0.75) 50%, 
        rgba(10, 13, 20, 0.85) 100%
    );
    z-index: 2;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 40%, rgba(184, 163, 123, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 70% 60%, rgba(184, 163, 123, 0.05) 0%, transparent 60%);
    animation: pulse 8s ease-in-out infinite;
    z-index: 3;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* スライダーナビゲーション */
.hero-slider-nav {
    position: absolute;
    bottom: 5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(184, 163, 123, 0.5);
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0;
}

.slider-dot:hover {
    background: rgba(184, 163, 123, 0.5);
    transform: scale(1.2);
}

.slider-dot.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    width: 40px;
    border-radius: 6px;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 1200px;
    padding: 0 2rem;
}

.hero-subtitle {
    font-size: 1rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    font-weight: 300;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.3s;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    font-family: var(--font-display);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.5s;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.7s;
}

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

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 1s ease forwards 0.9s;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: all var(--transition-base);
    letter-spacing: 0.05em;
    border: 2px solid transparent;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #ffffff;
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(184, 163, 123, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
    background: var(--color-accent);
    color: #ffffff;
    transform: translateY(-3px);
}

.hero-scroll {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-accent);
    font-size: 2rem;
    animation: bounce 2s infinite;
    z-index: 10;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ========================================
   セクション共通スタイル
   ======================================== */

.section {
    padding: 8rem 0;
    position: relative;
    max-width: 1920px;
    margin: 0 auto;
}

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

.section-darker {
    background: var(--color-navy-darkest);
}

.section-light {
    background: var(--gradient-light);
}

/* パララックス背景セクション */
.section-parallax {
    position: relative;
    overflow: hidden;
    max-width: 1920px;
    margin: 0 auto;
}

.section-parallax::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%) translateY(var(--parallax-y, 0));
    width: 100%;
    max-width: 1920px;
    height: calc(100% + 100px);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    will-change: transform;
    z-index: 0;
}

.section-parallax::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1920px;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 13, 20, 0.92) 0%, rgba(15, 20, 25, 0.88) 50%, rgba(10, 13, 20, 0.92) 100%);
    z-index: 1;
}

.section-parallax .container {
    position: relative;
    z-index: 2;
}

/* 会社概要セクション用の背景 */
#about.section-parallax::before {
    background-image: url('https://sspark.genspark.ai/cfimages?u1=7kbLRAaSaamBrCPYg3pN9MhZXIPufAG5olhYSUhDq77rNZoKChyBHVyo2YHTC9VPm2%2Bp6ibG%2Fh0m9Sg7GgXy7aC8x%2BhrBJWipWXlUiO1Tl1kkTXvhDz9jbjwJPmcyTNMn%2B%2F8m0NKMnsUxX9dVZK9eHwYVTHTqaZyNvI%3D&u2=cMlPn%2FmQfgYR4B2F&width=2560');
}

/* 採用情報セクション - 動的グラデーション背景 */
#recruit.section-animated {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-navy-darkest) 0%, var(--color-navy-dark) 50%, var(--color-navy-base) 100%);
}

#recruit.section-animated::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(184, 163, 123, 0.25) 0%, transparent 25%),
        radial-gradient(circle at 80% 70%, rgba(184, 163, 123, 0.2) 0%, transparent 30%),
        radial-gradient(circle at 40% 80%, rgba(184, 163, 123, 0.22) 0%, transparent 28%);
    animation: gradientMove 20s ease-in-out infinite;
    z-index: 1;
    pointer-events: none;
}

#recruit.section-animated::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 80px,
            rgba(184, 163, 123, 0.08) 80px,
            rgba(184, 163, 123, 0.08) 82px
        );
    animation: linesMove 40s linear infinite;
    z-index: 1;
    pointer-events: none;
}

#recruit.section-animated .container {
    position: relative;
    z-index: 2;
}

@keyframes gradientMove {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 1;
    }
    25% {
        transform: translate(5%, 3%) rotate(90deg);
        opacity: 0.9;
    }
    50% {
        transform: translate(3%, 8%) rotate(180deg);
        opacity: 1;
    }
    75% {
        transform: translate(-5%, 5%) rotate(270deg);
        opacity: 0.9;
    }
}

@keyframes linesMove {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(82px);
    }
}

.section-light .section-subtitle {
    color: var(--color-accent-dark);
}

.section-light .section-title {
    color: var(--color-text-dark);
}

.section-light .section-description {
    color: var(--color-text-dark-secondary);
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.section-header.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-subtitle {
    font-size: 0.9rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: 1rem;
    font-weight: 300;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-family: var(--font-display);
}

.section-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   事業内容セクション
   ======================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-card {
    background: #ffffff;
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid rgba(184, 163, 123, 0.15);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    text-align: center;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(184, 163, 123, 0.08) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    border-radius: 50%;
    pointer-events: none;
}

.service-card:hover::after {
    width: 500px;
    height: 500px;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-light-lg);
    border-color: var(--color-accent);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #ffffff;
    margin: 0 auto 2rem;
    box-shadow: var(--shadow-accent);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 32px rgba(184, 163, 123, 0.4);
}

.service-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--color-text-dark);
    font-weight: 600;
}

.service-card p {
    color: var(--color-text-dark-secondary);
    line-height: 1.8;
}

/* ========================================
   施工実績セクション
   ======================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.project-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-navy-dark);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.project-image {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, var(--color-navy-base) 0%, var(--color-navy-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--color-accent);
    position: relative;
    overflow: hidden;
    transition: transform 0.6s ease;
}

.project-card:hover .project-image {
    transform: scale(1.1);
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg, 
        rgba(10, 13, 20, 0) 0%, 
        rgba(10, 13, 20, 0.4) 50%,
        rgba(10, 13, 20, 0.8) 100%
    );
    opacity: 0.6;
    transition: opacity var(--transition-base);
    z-index: 1;
}

.project-card:hover .project-image::before {
    opacity: 0.9;
}

.project-image::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(184, 163, 123, 0.2);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    transition: width 0.6s ease, height 0.6s ease;
    z-index: 2;
}

.project-card:hover .project-image::after {
    width: 400px;
    height: 400px;
}

.project-info {
    padding: 2rem;
}

.project-category {
    font-size: 0.85rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.project-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.project-info p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ========================================
   強みセクション
   ======================================== */

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.strength-item {
    text-align: center;
    padding: 2.5rem;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid rgba(184, 163, 123, 0.15);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
    box-shadow: var(--shadow-light);
}

.strength-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.strength-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-light-lg);
}

.strength-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    font-family: var(--font-display);
    margin-bottom: 1rem;
}

.strength-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text-dark);
}

.strength-item p {
    color: var(--color-text-dark-secondary);
    line-height: 1.8;
}

/* ========================================
   会社概要セクション（パララックス背景）
   ======================================== */

#about {
    position: relative;
    overflow: hidden;
    min-height: 100vh;
}

#about::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 0;
    width: 100%;
    height: calc(100% + 200px);
    background-image: url('https://sspark.genspark.ai/cfimages?u1=HdEy58MhV7F0Xq42moaMExCYYMkmsJtjt20GDGs0VoLudDa1Uqa4Ed0imADP68sFHBXjT7v7sEQUJBQNlr%2FO87LdNiNVhOLc3xFEBZr5wkmw&u2=gUBkrVQPX9qKf5Ow&width=2560');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.15;
    z-index: 0;
    will-change: transform;
}

#about::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        rgba(10, 13, 20, 0.9) 0%,
        rgba(10, 13, 20, 0.95) 50%,
        rgba(10, 13, 20, 0.98) 100%
    );
    z-index: 1;
}

#about .container {
    position: relative;
    z-index: 2;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.about-text {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.8s ease;
}

.about-text.visible {
    opacity: 1;
    transform: translateX(0);
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
    font-family: var(--font-display);
}

.about-text p {
    color: var(--color-text-secondary);
    line-height: 2;
    margin-bottom: 1.5rem;
}

.about-info {
    background: var(--gradient-primary);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid rgba(184, 163, 123, 0.2);
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.8s ease;
    box-shadow: var(--shadow-xl);
}

.about-info.visible {
    opacity: 1;
    transform: translateX(0);
}

.info-item {
    display: flex;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(184, 163, 123, 0.1);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    min-width: 140px;
    color: var(--color-accent);
    font-weight: 600;
    flex-shrink: 0;
}

.info-value {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ========================================
   採用情報セクション
   ======================================== */

.recruit-content {
    max-width: 900px;
    margin: 3rem auto 0;
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.recruit-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.recruit-content h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
}

.recruit-content p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 2;
    margin-bottom: 2rem;
}

.recruit-positions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.position-card {
    background: var(--gradient-primary);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(184, 163, 123, 0.3);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.position-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-xl);
}

.position-card h4 {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.position-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   お問い合わせセクション
   ======================================== */

.contact-container {
    max-width: 800px;
    margin: 3rem auto 0;
    background: var(--gradient-primary);
    padding: 4rem;
    border-radius: 12px;
    border: 1px solid rgba(184, 163, 123, 0.2);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.contact-container.visible {
    opacity: 1;
    transform: translateY(0);
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(184, 163, 123, 0.2);
    background: var(--color-navy-darkest);
    color: var(--color-text-primary);
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(184, 163, 123, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-submit {
    text-align: center;
}

.btn-submit {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
    background: var(--gradient-accent);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-accent);
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(184, 163, 123, 0.3);
}

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

.footer {
    background: var(--color-navy-darkest);
    border-top: 1px solid rgba(184, 163, 123, 0.1);
    padding: 4rem 0 2rem;
    max-width: 1920px;
    margin: 0 auto;
}

.footer-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-company h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.footer-company p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(184, 163, 123, 0.1);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ========================================
   レスポンシブデザイン
   ======================================== */

@media (max-width: 1024px) {
    .logo-image {
        height: 42px;
        width: 42px;
    }
    
    .logo-main {
        font-size: 1.2rem;
    }
    
    .logo-sub {
        font-size: 0.65rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .header {
        padding: 1rem 0;
    }
    
    .header-container {
        padding: 0 1.5rem;
    }
    
    .logo {
        gap: 0.6rem;
    }
    
    .logo-image {
        height: 38px;
        width: 38px;
    }
    
    .logo-main {
        font-size: 1.1rem;
    }
    
    .logo-sub {
        font-size: 0.6rem;
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--color-navy-darkest);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
        z-index: 1000;
        padding-top: 5rem;
    }
    
    .nav.active {
        right: 0;
    }
    
    .menu-toggle {
        display: flex !important;
        position: fixed;
        top: 1.25rem;
        right: 1.5rem;
        z-index: 1001;
        width: 48px;
        height: 48px;
        background: rgba(10, 13, 20, 0.95);
        border-radius: 8px;
        align-items: center;
        justify-content: center;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(184, 163, 123, 0.2);
    }
    
    .menu-toggle:hover {
        background: rgba(184, 163, 123, 0.2);
        border-color: var(--color-accent);
    }
    
    .menu-toggle i {
        font-size: 1.4rem;
        transition: transform 0.3s ease;
    }
    
    .nav.active ~ .menu-toggle {
        background: rgba(184, 163, 123, 0.9);
    }

    .hero-slider-nav {
        bottom: 7rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section {
        padding: 5rem 0rem;
    }

    .about-info {
        padding: 1.5rem;
    }

    .recruit-content p{
        margin-bottom: 0rem;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0.95rem 0;
    }
    
    .header-container {
        padding: 0 1rem;
    }
    
    .logo {
        gap: 0.5rem;
    }
    
    .logo-image {
        height: 32px;
        width: 32px;
    }
    
    .logo-main {
        font-size: 0.95rem;
    }
    
    .logo-sub {
        font-size: 0.5rem;
        letter-spacing: 0.08em;
    }
    
    .menu-toggle {
        top: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

/* ========================================
   ユーティリティクラス
   ======================================== */

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

.text-accent {
    color: var(--color-accent);
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }