/* 箱根悠和舎 - メインスタイルシート */

:root {
    /* 箱根カラーパレット */
    --hakone-red: #c73e3a;        /* 箱根神社の朱色 */
    --hakone-black: #2c2c2c;       /* 神社の黒 */
    --hakone-blue: #4a7c8c;        /* 芦ノ湖の深い青 */
    --hakone-gold: #d4a574;        /* 紅葉の金色 */
    --hakone-orange: #e67e50;      /* 紅葉のオレンジ */
    --hakone-cream: #f5f1e8;       /* 和紙のような温かみのある白 */
    --hakone-gray: #8b8b8b;        /* 石畳のグレー */
    --hakone-dark-gray: #4a4a4a;
    
    /* フォント */
    --font-serif: "Noto Serif JP", "游明朝", "Yu Mincho", serif;
    --font-sans: "Noto Sans JP", "游ゴシック", "Yu Gothic", sans-serif;
}

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

body {
    font-family: var(--font-sans);
    color: var(--hakone-black);
    background-color: var(--hakone-cream);
    line-height: 1.8;
    font-size: 16px;
}

/* タイポグラフィ */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.4;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.2rem;
    color: var(--hakone-red);
    position: relative;
    padding-bottom: 0.8rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(to right, var(--hakone-red), var(--hakone-gold));
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--hakone-dark-gray);
}

/* ヘッダー */
header {
    background: linear-gradient(135deg, var(--hakone-black) 0%, var(--hakone-dark-gray) 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-accent {
    color: var(--hakone-gold);
    font-size: 0.9rem;
    display: block;
    margin-left: 0.5rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
}

nav a:hover {
    color: var(--hakone-gold);
}

/* ヒーローセクション */
.hero {
    height: 70vh;
    background: linear-gradient(135deg, var(--hakone-blue) 0%, var(--hakone-black) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 2rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    letter-spacing: 0.15em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
    opacity: 0.95;
}

.hero-tagline {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 2;
    opacity: 0.9;
    border-top: 1px solid rgba(255,255,255,0.3);
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding: 1.5rem 0;
    margin-top: 2rem;
}

/* セクション共通 */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-alt {
    background: white;
}

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

.card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 3px solid var(--hakone-red);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.card h3 {
    color: var(--hakone-red);
    margin-bottom: 1rem;
}

/* ボタン */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--hakone-red);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    border: 2px solid var(--hakone-red);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.btn:hover {
    background: transparent;
    color: var(--hakone-red);
}

.btn-outline {
    background: transparent;
    color: var(--hakone-red);
    border: 2px solid var(--hakone-red);
}

.btn-outline:hover {
    background: var(--hakone-red);
    color: white;
}

/* フォーム */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--hakone-red);
}

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

/* 会社概要テーブル */
.company-info {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    margin-top: 2rem;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
}

.info-table tr {
    border-bottom: 1px solid #eee;
}

.info-table th {
    text-align: left;
    padding: 1.2rem 1rem;
    background: var(--hakone-cream);
    font-weight: 500;
    width: 200px;
    color: var(--hakone-dark-gray);
}

.info-table td {
    padding: 1.2rem 1rem;
}

/* フッター */
footer {
    background: var(--hakone-black);
    color: white;
    padding: 3rem 2rem 1.5rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.copyright {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    section {
        padding: 3rem 1rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .info-table th {
        width: 120px;
        font-size: 0.9rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* 装飾要素 */
.decorative-line {
    height: 2px;
    background: linear-gradient(to right, transparent, var(--hakone-red), var(--hakone-gold), transparent);
    margin: 3rem auto;
    max-width: 300px;
}

.accent-text {
    color: var(--hakone-red);
    font-weight: 500;
}

.philosophy-text {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 2;
    text-align: justify;
    padding: 2rem;
    background: white;
    border-left: 4px solid var(--hakone-red);
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin: 2rem 0;
}