@charset "UTF-8";

/* ==========================================================================
   Variables
   ========================================================================== */
:root {
    --color-primary: #559E74;
    --color-primary-light: #f0f7f4;
    --color-text-main: #333333;
    --color-text-sub: #666666;
    --color-bg-body: #f9f9f9;
    --color-bg-content: #ffffff;
    --color-border: #e0e0e0;
    --header-height: 70px;
    --sidebar-width: 260px;
    --container-max-width: 1200px;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    line-height: 1.6;
    color: var(--color-text-main);
    background-color: var(--color-bg-body);
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Header (Fixed Top) - Adjusted for Logo Left / Title Right
   ========================================================================== */
.site-header {
    background-color: #fff;
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.header-inner {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    
    /* Flexbox設定：要素を両端に配置 */
    display: flex;
    align-items: center;
    justify-content: space-between; 
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-area img {
    height: 32px;
    width: auto;
    border: none;
    box-shadow: none;
}

.divider {
    color: #ccc;
    font-size: 20px;
    font-weight: 300;
}

.site-title {
    font-size: 18px; /* PCでのサイズ */
    color: var(--color-primary);
    margin: 0;
    font-weight: bold;
    text-align: right; /* 右揃え */
    white-space: nowrap; /* 折り返し禁止 */
}

/* ==========================================================================
   Layout Container (Main + Sidebar)
   ========================================================================== */
.layout-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 30px 20px;
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

/* Sidebar Navigation (Right Side) */
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height) + 30px);
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.nav-menu {
    border-left: 1px solid var(--color-border); 
    padding-left: 20px;
}

.nav-label {
    font-size: 14px;
    font-weight: bold;
    color: var(--color-text-sub);
    margin-bottom: 15px;
    padding-left: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu li {
    margin-bottom: 8px;
}

.nav-menu a {
    display: block;
    text-decoration: none;
    color: var(--color-text-main);
    font-size: 14px;
    padding: 8px 10px;
    border-radius: 4px;
    transition: all 0.2s;
}

.nav-menu a:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

/* Main Content Area (Left Side) */
.main-content {
    flex: 1;
    min-width: 0;
    background: #fff;
    padding: 40px 50px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    border: 1px solid var(--color-border);
}

.content-intro {
    margin-bottom: 40px;
    font-size: 16px;
}

/* ==========================================================================
   Content Styles
   ========================================================================== */
.doc-section {
    margin-bottom: 70px;
}

h2 {
    font-size: 26px;
    color: var(--color-text-main);
    margin-top: 0;
    margin-bottom: 30px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
    line-height: 1.3;
}

h3 {
    font-size: 19px;
    color: var(--color-primary);
    margin-top: 50px;
    margin-bottom: 20px;
    padding-left: 15px;
    border-left: 5px solid var(--color-primary);
    background: linear-gradient(to right, #f9fdfb, #fff);
    padding-top: 5px;
    padding-bottom: 5px;
}

.section-body {
    padding-left: 20px;
}

h4 {
    font-size: 16px;
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: bold;
    color: #444;
    border-left: 3px solid #ccc;
    padding-left: 10px;
}

p {
    margin-bottom: 1.2em;
    font-size: 15px;
    color: #444;
    line-height: 1.8;
}

.sub-text {
    font-size: 14px;
    color: var(--color-text-sub);
    margin-top: -5px;
}

ol.step-list {
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

ol.step-list > li {
    position: relative;
    padding-left: 50px;
    margin-bottom: 40px;
}

ol.step-list > li::before {
    content: counter(step);
    counter-increment: step;
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background-color: var(--color-primary);
    color: #fff;
    text-align: center;
    line-height: 32px;
    border-radius: 50%;
    font-weight: bold;
    font-size: 16px;
    box-shadow: 0 2px 5px rgba(85, 158, 116, 0.4);
}

ul.detail-list {
    padding-left: 20px;
    margin-top: 10px;
    margin-bottom: 20px;
    list-style-type: disc;
    color: var(--color-text-sub);
}
ul.detail-list li {
    margin-bottom: 5px;
}

figure {
    margin: 20px 0;
    text-align: left;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

.main-content img {
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border: 1px solid #eee;
}

.ui-label {
    background-color: #f4f5f7;
    border: 1px solid #dcdfe3;
    border-radius: 3px;
    padding: 2px 8px;
    font-size: 0.9em;
    font-weight: bold;
    color: #333;
    display: inline-block;
}

.note-box {
    background-color: #fff8e1;
    padding: 15px 20px;
    border-left: 4px solid #ffc107;
    border-radius: 4px;
    margin: 20px 0;
    font-size: 14px;
}
.note-box p {
    margin: 0;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media screen and (max-width: 768px) {
    /* Layout Adjustments */
    .layout-container {
        flex-direction: column;
        padding: 15px;
    }

    /* Header Fix for Mobile */
    .site-header {
        height: auto; /* 高さを固定せず中身に合わせる */
        padding: 10px 0;
    }

    .header-inner {
        flex-direction: column; /* 縦並びにする */
        justify-content: center;
        gap: 10px; /* ロゴとタイトルの間隔 */
    }

    .site-title {
        font-size: 16px; /* スマホ用に少し小さく */
        text-align: center; /* 中央揃え */
        white-space: normal; /* 必要なら折り返し許可 */
    }

    /* Sidebar & Content Adjustments */
    .sidebar {
        width: 100%;
        position: static;
        height: auto;
        border-bottom: 1px solid var(--color-border);
        padding-bottom: 20px;
        margin-bottom: 20px;
        order: -1; /* 目次を上に */
    }
    
    .nav-menu {
        border-left: none;
        padding-left: 0;
    }
    
    .main-content {
        padding: 20px;
    }
    
    .section-body {
        padding-left: 0;
    }
    
    ol.step-list > li {
        padding-left: 40px;
    }
}