/* あんぴセンサー LP スタイルシート */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
    line-height: 1.8;
    color: #333;
    background: #f5f7fa;
}

/* ========================================
   ナビゲーションバー
   ======================================== */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
    letter-spacing: 0.05em;
}

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

.nav-menu a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* ========================================
   コンテナ
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ========================================
   メインコンテンツ
   ======================================== */
main {
    background: white;
    padding: 3rem 3rem;
    margin: 2rem auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    min-height: 60vh;
}

/* ========================================
   見出し
   ======================================== */
h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
    border-bottom: 4px solid #667eea;
    padding-bottom: 0.8rem;
    line-height: 1.3;
}

h2 {
    font-size: 2rem;
    margin: 3rem 0 1.5rem;
    color: #34495e;
    padding-left: 1rem;
    border-left: 5px solid #667eea;
}

h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: #34495e;
}

h4 {
    font-size: 1.2rem;
    margin: 1.5rem 0 0.8rem;
    color: #555;
}

/* ========================================
   段落・テキスト
   ======================================== */
p {
    margin: 1rem 0;
    line-height: 1.8;
}

strong {
    color: #667eea;
    font-weight: 600;
}

/* ========================================
   テーブル
   ======================================== */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

table th,
table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border: 1px solid #e0e0e0;
}

table th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    text-align: center;
}

table tr:nth-child(even) {
    background: #f9f9f9;
}

table tr:hover {
    background: #f0f4ff;
    transition: background 0.3s ease;
}

/* ========================================
   リスト
   ======================================== */
ul, ol {
    margin: 1.5rem 0 1.5rem 2rem;
}

li {
    margin: 0.8rem 0;
    line-height: 1.8;
}

ul li {
    list-style-type: disc;
}

/* ========================================
   コードブロック
   ======================================== */
pre {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

code {
    background: #f0f4ff;
    color: #667eea;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: "SF Mono", "Courier New", monospace;
    font-size: 0.9em;
}

pre code {
    background: transparent;
    color: #ecf0f1;
    padding: 0;
}

/* ========================================
   引用
   ======================================== */
blockquote {
    border-left: 4px solid #667eea;
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    color: #666;
    font-style: italic;
    background: #f9f9f9;
    padding: 1rem 1.5rem;
    border-radius: 4px;
}

/* ========================================
   リンク
   ======================================== */
a {
    color: #667eea;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* ========================================
   水平線
   ======================================== */
hr {
    border: none;
    border-top: 2px solid #e0e0e0;
    margin: 3rem 0;
}

/* ========================================
   フッター
   ======================================== */
footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 0;
    margin-top: 4rem;
    text-align: center;
}

footer p {
    margin: 0.5rem 0;
}

footer a {
    color: #fff;
    text-decoration: underline;
}

footer a:hover {
    opacity: 0.8;
}

/* ========================================
   ユーティリティクラス
   ======================================== */
.text-center {
    text-align: center;
}

.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; }

/* ========================================
   レスポンシブデザイン
   ======================================== */
@media (max-width: 768px) {
    /* ナビゲーション */
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
        font-size: 0.9rem;
    }

    .nav-menu a {
        padding: 0.4rem 0.8rem;
    }

    /* コンテンツ */
    .container {
        padding: 0 1rem;
    }

    main {
        padding: 2rem 1.5rem;
        margin: 1rem auto;
    }

    /* 見出し */
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.6rem;
        margin: 2rem 0 1rem;
    }

    h3 {
        font-size: 1.3rem;
    }

    /* テーブル */
    table {
        font-size: 0.9rem;
    }

    table th,
    table td {
        padding: 0.8rem;
    }

    /* コードブロック */
    pre {
        padding: 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.4rem;
    }

    h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    table {
        font-size: 0.8rem;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}

/* ========================================
   印刷スタイル
   ======================================== */
@media print {
    .navbar,
    footer {
        display: none;
    }

    main {
        box-shadow: none;
        margin: 0;
        padding: 0;
    }

    a {
        color: #333;
        text-decoration: underline;
    }
}