/*
Theme Name: My First Theme
Author: Your Name
Author URI: https://example.com/
Description: This is my very first WordPress theme.
Version: 1.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: blog, one-column, custom-header
Text Domain: myfirsttheme
*/

/*
Theme Name: Techno Solution Theme
Author: Your Name
Description: 株式会社テクノソリューションのコーポレートサイト用WordPressテーマです。
Version: 1.0
*/

/* --- CSS変数 --- */
:root {
    --primary-color: #2563eb; /* メインカラー */
    --secondary-color: #1e40af; /* サブカラー */
    --accent-color: #f59e0b; /* アクセントカラー */
    --text-primary: #1f2937; /* テキスト基本色 */
    --text-secondary: #6b7280; /* テキスト補助色 */
    --text-light: #9ca3af; /* テキスト淡色 */
    --bg-primary: #ffffff; /* 背景基本色 */
    --bg-secondary: #f9fafb; /* 背景補助色 */
    --bg-dark: #111827; /* 背景濃色 */
    --border-color: #e5e7eb; /* 境界線色 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05); /* 影（小） */
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); /* 影（中） */
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); /* 影（大） */
    --border-radius: 8px; /* 角丸 */
    --container-max-width: 1200px; /* コンテナ最大幅 */
    --header-height: 80px; /* ヘッダーの高さ */
}

/* --- リセット & 基本スタイル --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul, ol {
    list-style: none;
}

/* --- ユーティリティクラス --- */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --- ヘッダー --- */
.site-header {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.main-navigation ul {
    display: flex;
    gap: 32px;
}

.main-navigation a {
    font-weight: 500;
    color: var(--text-primary);
    padding: 8px 0;
    position: relative;
}

.main-navigation a:hover {
    color: var(--primary-color);
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.main-navigation a:hover::after {
    width: 100%;
}

.header-cta {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
}

.header-cta:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* --- モバイルメニュー --- */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s linear;
}

/* --- ヒーローセクション --- */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 120px 0 80px;
    margin-top: var(--header-height);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://placehold.co/1200x600/2563eb/ffffff?text=Tech+Background') center/cover;
    opacity: 0.1;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background-color: #d97706;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: white;
    border-color: white;
}

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

/* --- 各セクション共通ヘッダー --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* --- サービスセクション --- */
.services-section {
    background-color: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.service-card {
    background-color: white;
    padding: 40px 32px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 64px;
    height: 64px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 30px;
    color: white;
}

.service-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- 会社概要セクション --- */
.about-section {
    background-color: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.about-text p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.about-features {
    list-style: none;
    margin: 32px 0;
}

.about-features li {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
    font-weight: 500;
}

.about-features li::before {
    content: '✓';
    color: var(--accent-color);
    font-weight: bold;
    margin-right: 12px;
    font-size: 18px;
}

.about-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 80px;
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 16px;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* --- お知らせセクション --- */
.news-section {
    background-color: var(--bg-secondary);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.news-article {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.news-article:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.news-article:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 14px;
    color: var(--text-light);
}

.news-category {
    background-color: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.5;
    flex-grow: 1;
}

.news-title a:hover {
    color: var(--primary-color);
}

.news-excerpt {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* --- お問い合わせセクション --- */
.contact-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.contact-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
}

.contact-description {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 22px;
}

.contact-label {
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-value {
    opacity: 0.9;
}

.contact-value a {
    color: white;
}

.contact-value a:hover {
    text-decoration: underline;
}

/* --- フッター --- */
.site-footer {
    /* background-color: var(--bg-dark);
   color: white;*/
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.footer-section p,
.footer-section li {
    color: #d1d5db;
    margin-bottom: 12px;
    font-size: 14px;
}

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

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 20px;
    text-align: center;
    color: #9ca3af;
    font-size: 14px;
}

/* --- レスポンシブデザイン --- */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-image {
        order: -1; /* 画像をテキストの上に表示 */
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .main-navigation {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        box-shadow: var(--shadow-md);
        padding: 16px 0;
    }
    
    .main-navigation.is-open {
        display: block;
    }

    .main-navigation ul {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }

    .main-navigation li {
        width: 100%;
        text-align: center;
    }

    .main-navigation a {
        display: block;
        padding: 16px;
        width: 100%;
    }
    
    .main-navigation a::after {
        display: none;
    }

    .header-cta {
        display: none; /* モバイルではCTAボタンを非表示にすることも検討 */
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 32px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 320px;
    }

    .services-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section-padding {
        padding: 60px 0;
    }

    .hero-section {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }

    .service-card,
    .news-content {
        padding: 32px 24px;
    }
}

/* --- アニメーション --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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