/* ================================================
   HORIXX - 黒を基調としたスタイリッシュなデザイン
   PDF資料のデザインコンセプトを踏襲
   ================================================ */

/* ===== リセット & ベース設定 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット - 黒基調 */
    --primary-black: #000000;
    --secondary-black: #1a1a1a;
    --dark-gray: #2a2a2a;
    --medium-gray: #808080;
    --light-gray: #cccccc;
    --white: #ffffff;
    --accent-gray: #404040;
    
    /* タイポグラフィ */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-secondary: 'Montserrat', sans-serif;
    
    /* スペーシング */
    --section-padding: 100px 0;
    --container-max: 1200px;
    
    /* トランジション */
    --transition-base: all 0.3s ease;
}

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

body {
    font-family: var(--font-primary);
    color: var(--white);
    background-color: var(--primary-black);
    line-height: 1.8;
    overflow-x: hidden;
}

/* ===== タイポグラフィ ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: 0.05em;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--light-gray);
}

/* ===== コンテナ ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== ヘッダー ===== */
.header {
    background-color: var(--primary-black);
    padding: 20px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--dark-gray);
    transition: var(--transition-base);
}

.header.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(255, 255, 255, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-left: 10px;
}

/* ===== ナビゲーション ===== */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu li a {
    font-family: var(--font-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    padding: 8px 0;
    position: relative;
    text-transform: uppercase;
}

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

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

/* ハンバーガーメニュー */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--white);
    transition: var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== ヒーローセクション ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--secondary-black) 100%);
    position: relative;
    overflow: hidden;
    margin-top: 80px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* ヒーローセクションのマスク（文字を見やすくする） */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.7) 0%,
        rgba(0, 0, 0, 0.5) 50%,
        rgba(0, 0, 0, 0.8) 100%
    );
    z-index: 0;
}

/* 各ページ用の背景画像 - すべて共通画像を使用 */
.hero.hero-home,
.hero.hero-about,
.hero.hero-member,
.hero.hero-works,
.hero.hero-recruit,
.hero.hero-company,
.hero.hero-contact {
    background-image: url('../images/hero-bg.jpg');
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 40px 20px;
}

.hero-subtitle {
    font-size: 1rem;
    letter-spacing: 0.2em;
    color: var(--light-gray);
    margin-bottom: 20px;
    text-transform: uppercase;
    font-family: var(--font-secondary);
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 30px;
    line-height: 1.2;
    font-weight: 700;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--light-gray);
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

/* ===== ボタン ===== */
.btn {
    display: inline-block;
    padding: 15px 40px;
    font-family: var(--font-secondary);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 2px solid var(--white);
    background-color: transparent;
    color: var(--white);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    transition: left 0.3s ease;
    z-index: -1;
}

.btn:hover {
    color: var(--primary-black);
}

.btn:hover::before {
    left: 0;
}

.btn-primary {
    background-color: var(--white);
    color: var(--primary-black);
    border-color: var(--white);
}

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

/* ===== セクション共通 ===== */
.section {
    padding: var(--section-padding);
    position: relative;
}

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

.section-darker {
    background-color: var(--secondary-black);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    color: var(--medium-gray);
    margin-bottom: 15px;
    text-transform: uppercase;
    font-family: var(--font-secondary);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--light-gray);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== ニュースセクション ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background-color: var(--secondary-black);
    border: 1px solid var(--dark-gray);
    padding: 30px;
    transition: var(--transition-base);
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: var(--medium-gray);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
}

.news-date {
    font-size: 0.9rem;
    color: var(--medium-gray);
    margin-bottom: 15px;
    font-family: var(--font-secondary);
}

.news-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-excerpt {
    color: var(--light-gray);
    line-height: 1.7;
}

/* ===== 制作実績セクション ===== */
.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.work-card {
    background-color: var(--secondary-black);
    overflow: hidden;
    border: 1px solid var(--dark-gray);
    transition: var(--transition-base);
    position: relative;
}

.work-card:hover {
    transform: translateY(-10px);
    border-color: var(--medium-gray);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.1);
}

.work-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    object-position: center;
    transition: var(--transition-base);
    background-color: var(--dark-gray);
}

.work-card:hover .work-image {
    transform: scale(1.05);
}

.work-info {
    padding: 25px;
}

.work-category {
    font-size: 0.85rem;
    color: var(--medium-gray);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 10px;
    font-family: var(--font-secondary);
}

.work-title {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.work-description {
    color: var(--light-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===== フィルター ===== */
.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background-color: transparent;
    border: 1px solid var(--medium-gray);
    color: var(--white);
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition-base);
    text-transform: uppercase;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--white);
    color: var(--primary-black);
    border-color: var(--white);
}

/* ===== メンバーグリッド ===== */
.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.member-card {
    text-align: center;
    transition: var(--transition-base);
    background-color: var(--secondary-black);
    padding: 30px;
    border: 1px solid var(--dark-gray);
}

.member-card:hover {
    transform: translateY(-5px);
    border-color: var(--medium-gray);
}

.member-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
    margin: 0 auto 20px;
    border: 3px solid var(--dark-gray);
    transition: var(--transition-base);
    background-color: var(--dark-gray);
    display: block;
}

.member-card:hover .member-photo {
    border-color: var(--white);
}

.member-name {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.member-role {
    color: var(--medium-gray);
    font-size: 0.95rem;
    margin-bottom: 15px;
    font-family: var(--font-secondary);
}

.member-description {
    color: var(--light-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== 事業内容グリッド ===== */
.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.business-item {
    background-color: var(--secondary-black);
    padding: 40px;
    border: 1px solid var(--dark-gray);
    transition: var(--transition-base);
}

.business-item:hover {
    transform: translateY(-5px);
    border-color: var(--medium-gray);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
}

.business-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.business-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.business-description {
    color: var(--light-gray);
    line-height: 1.7;
}

/* ===== 強みセクション ===== */
.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.strength-item {
    background-color: var(--secondary-black);
    padding: 40px;
    border-left: 3px solid var(--white);
    transition: var(--transition-base);
}

.strength-item:hover {
    transform: translateX(10px);
    box-shadow: -5px 0 20px rgba(255, 255, 255, 0.05);
}

.strength-number {
    font-size: 3rem;
    font-family: var(--font-secondary);
    font-weight: 700;
    color: var(--medium-gray);
    margin-bottom: 20px;
}

.strength-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.strength-description {
    color: var(--light-gray);
    line-height: 1.7;
}

/* ===== 採用情報 ===== */
.recruit-content {
    background-color: var(--secondary-black);
    padding: 60px;
    border: 1px solid var(--dark-gray);
}

.recruit-header {
    text-align: center;
    margin-bottom: 50px;
}

.recruit-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.recruit-subtitle {
    font-size: 1.2rem;
    color: var(--light-gray);
}

.recruit-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.recruit-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--dark-gray);
}

.recruit-item-title {
    font-size: 1.1rem;
    color: var(--medium-gray);
    margin-bottom: 10px;
    font-family: var(--font-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.recruit-item-content {
    font-size: 1rem;
    line-height: 1.7;
}

/* ===== 会社概要 ===== */
.company-info {
    background-color: var(--secondary-black);
    padding: 60px;
    border: 1px solid var(--dark-gray);
}

.info-table {
    width: 100%;
}

.info-row {
    display: flex;
    padding: 25px 0;
    border-bottom: 1px solid var(--dark-gray);
}

.info-label {
    flex: 0 0 200px;
    font-weight: 600;
    color: var(--medium-gray);
    font-family: var(--font-secondary);
    letter-spacing: 0.05em;
}

.info-value {
    flex: 1;
    color: var(--white);
    line-height: 1.7;
}

/* ===== お問い合わせフォーム ===== */
.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--secondary-black);
    padding: 60px;
    border: 1px solid var(--dark-gray);
}

.form-group {
    margin-bottom: 30px;
}

.form-label {
    display: block;
    margin-bottom: 10px;
    font-family: var(--font-secondary);
    letter-spacing: 0.05em;
    color: var(--light-gray);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-black);
    border: 1px solid var(--dark-gray);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--white);
}

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

.form-button {
    width: 100%;
    padding: 18px;
    background-color: var(--white);
    color: var(--primary-black);
    border: none;
    font-family: var(--font-secondary);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-base);
}

.form-button:hover {
    background-color: var(--light-gray);
}

/* ===== フッター ===== */
.footer {
    background-color: var(--primary-black);
    padding: 60px 0 30px;
    border-top: 1px solid var(--dark-gray);
}

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

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    font-family: var(--font-secondary);
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--light-gray);
    transition: var(--transition-base);
}

.footer-section ul li a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--dark-gray);
    color: var(--medium-gray);
    font-size: 0.9rem;
}

/* ===== バックトゥトップボタン ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--white);
    color: var(--primary-black);
    border: none;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--light-gray);
}

/* ===== ライトボックス ===== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    background: none;
    border: none;
}

/* ===== レスポンシブデザイン ===== */
@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title { font-size: 3rem; }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 70%;
        height: calc(100vh - 80px);
        background-color: var(--primary-black);
        flex-direction: column;
        padding: 40px;
        transition: right 0.3s ease;
        border-left: 1px solid var(--dark-gray);
        gap: 20px;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-title { font-size: 2.2rem; }
    .hero-description { font-size: 1rem; }
    
    .news-grid,
    .works-grid,
    .members-grid,
    .business-grid,
    .strengths-grid {
        grid-template-columns: 1fr;
    }
    
    .recruit-content,
    .company-info,
    .contact-form {
        padding: 40px 20px;
    }
    
    .info-row {
        flex-direction: column;
        gap: 10px;
    }
    
    .info-label {
        flex: none;
    }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .section-title { font-size: 1.8rem; }
    .btn { padding: 12px 30px; }
}

/* ===== アニメーション ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* ===== ユーティリティクラス ===== */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }

/* ===== NO IMAGE & 画像サイズ固定 ===== */
/* 代表写真用 */
.ceo-photo {
    width: 100%;
    max-width: 400px;
    height: auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    object-position: center;
    margin: 0 auto;
    display: block;
    background-color: var(--dark-gray);
}

/* 採用ページ用イメージ画像 */
.recruit-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    object-position: center;
    background-color: var(--dark-gray);
    margin-bottom: 40px;
}

/* NO IMAGE画像の共通スタイル */
img[src*="no-image"] {
    background-color: var(--dark-gray);
}

@media (max-width: 768px) {
    .ceo-photo {
        max-width: 300px;
    }
    
    .recruit-image {
        height: 300px;
    }
}