/*
Theme Name: Codama Design
Theme URI: https://codamadesign.com
Author: Koji Ueno
Author URI: https://codamadesign.com
Description: A premium portfolio theme for graphic designers and art directors.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: codama
*/

/* ============================================
   CSS変数定義
   ============================================ */
:root {
    /* カラーパレット */
    --bg-color: #FAFAF9;
    --element-bg: #FFFFFF;
    --text-main: #1A1A1A;
    --text-sub: #737373;
    --accent-color: #1A1A1A;
    --border-color: rgba(0, 0, 0, 0.08);

    /* タイポグラフィ */
    --font-en: 'Inter', system-ui, -apple-system, sans-serif;
    --font-jp: 'Noto Sans JP', sans-serif;
    --font-title: 'Noto Serif JP', serif;

    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1.5rem;
    --spacing-md: 3rem;
    --spacing-lg: 6rem;
    --spacing-xl: 10rem;

    /* レイアウト */
    --max-width: 1440px;
    --header-height: 100px;

    /* トランジション */
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --transition-fast: 0.3s var(--ease-out-expo);
    --transition-medium: 0.6s var(--ease-out-expo);
    --transition-slow: 1.0s var(--ease-out-expo);
}

/* ============================================
   ベーススタイル
   ============================================ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    text-size-adjust: 100%;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-en), var(--font-jp);
    line-height: 1.9;
    letter-spacing: 0.02em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

h3 {
    font-family: var(--font-title);
}

.site-wrapper {
    width: 100%;
    margin: 0;
    padding: 0;
    position: relative;
    overflow-x: hidden;
}

/* ============================================
   ヘッダー
   ============================================ */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-md);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 100;
    background: rgba(250, 250, 249, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: height var(--transition-medium), background var(--transition-medium);
}

.site-header.scrolled {
    height: 70px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    z-index: 102;
    position: relative;
}

.logo img {
    height: 32px;
    width: auto;
    display: block;
}

/* デスクトップナビゲーション */
.desktop-nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
}

.desktop-nav a {
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    position: relative;
    font-weight: 400;
    color: var(--text-sub);
    transition: color var(--transition-fast);
}

.desktop-nav a:hover,
.desktop-nav a.active {
    color: var(--text-main);
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -4px;
    left: 0;
    background-color: var(--text-main);
    transition: width var(--transition-medium);
}

.desktop-nav a:hover::after {
    width: 100%;
}

/* モバイルメニュートグル */
.mobile-menu-toggle {
    display: none;
}

/* ============================================
   ヒーローセクション
   ============================================ */
.hero-section {
    min-height: 100vh;
    padding-top: var(--header-height);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

/* 背景要素: 山 */
.hero-bg-mountain {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    transform: translate(-50%, -50%) scale(1.1);
    z-index: -2;
    pointer-events: none;
}

.hero-bg-mountain img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

/* 背景要素: ロゴマーク */
.hero-bg-mark {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 85vmax;
    height: 85vmax;
    transform: translate(-50%, -50%);
    z-index: -1;
    pointer-events: none;
}

.hero-bg-mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    will-change: transform, opacity;
    animation: markEnter 1.4s var(--ease-out-expo) forwards;
}

@keyframes markEnter {
    0% {
        transform: scale(1.5) rotate(-15deg);
        opacity: 0;
    }

    100% {
        transform: scale(1) rotate(0deg);
        opacity: 0.05;
    }
}

/* ヒーローコンテンツ */
.hero-content {
    max-width: 90vw;
    z-index: 1;
}

.hero-content h1 {
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.hero-logo-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    display: block;
    opacity: 0;
    will-change: transform, opacity;
    animation: fadeUp 1.2s var(--ease-out-expo) forwards;
    animation-delay: 0.7s;
    transform-origin: left center;
}

.subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 400;
    color: var(--text-sub);
    margin-top: var(--spacing-sm);
    letter-spacing: 0.02em;
    margin-left: 4px;
    opacity: 0;
    animation: fadeUp 1.2s var(--ease-out-expo) forwards;
    animation-delay: 0.5s;
}

.hero-text-content {
    margin-top: var(--spacing-md);
    color: var(--text-main);
    max-width: 600px;
    opacity: 0;
    animation: fadeUp 1.2s var(--ease-out-expo) forwards;
    animation-delay: 0.9s;
}

.hero-catch {
    font-family: var(--font-title);
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
    letter-spacing: 0.05em;
}

.hero-lead {
    font-family: var(--font-jp);
    font-size: clamp(0.75rem, 1.2vw, 0.9rem);
    font-weight: 400;
    line-height: 2.0;
    color: var(--text-sub);
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    left: auto;
    transform: none;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-sub);
    writing-mode: vertical-rl;
    overflow: hidden;
}

.scroll-indicator::after {
    content: '';
    display: block;
    width: 1px;
    height: 40px;
    background-color: var(--text-sub);
    margin-top: 1rem;
    animation: scrollLine 2s var(--ease-out-expo) infinite;
}

@keyframes scrollLine {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(100%);
    }
}

.mobile-br {
    display: none;
}

/* ============================================
   ブランドバナー
   ============================================ */
.brand-banner {
    width: 80%;
    margin-left: 20%;
    overflow: hidden;
    margin-bottom: 100px;
}

.banner-img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    display: block;
    border-radius: 150px 0 0 150px;
}

/* ============================================
   セクション共通スタイル
   ============================================ */
.section {
    padding: 7rem 0;
    position: relative;
}

/* セクション背景グラデーション */
#profile {
    background: linear-gradient(to bottom, var(--bg-color) 70%, rgba(232, 245, 233, 0.6) 100%);
}

#services {
    background: linear-gradient(to bottom, rgba(232, 245, 233, 0.6) 0%, rgba(255, 253, 231, 0.6) 100%);
}

#selected-works {
    background: linear-gradient(to bottom, rgba(255, 253, 231, 0.6) 0%, rgba(255, 240, 245, 0.6) 100%);
}

/* コンテンツコンテナ */
.content-container {
    position: relative;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: grid;
    grid-template-columns: 45px 1fr;
    gap: var(--spacing-xs);
    align-items: start;
}

/* セクションタイトル */
.section-title {
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    font-weight: 300;
    letter-spacing: 0.15em;
    border: none;
    padding: 0;
    display: block;
    text-transform: capitalize;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    height: auto;
    min-height: 150px;
    position: sticky;
    transform: translate(0, -100px);
    top: 120px;
    border-left: 1px solid var(--accent-color);
    padding-left: var(--spacing-sm);
    line-height: 6;
}

.section-title::after {
    font-size: 1rem;
    color: var(--text-sub);
    font-family: var(--font-en);
}

/* ============================================
   プロフィールセクション
   ============================================ */
.profile-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.profile-main h3 {
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.en-name {
    font-family: var(--font-en);
    font-size: 0.9rem;
    color: var(--text-sub);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.role {
    font-size: 1.1rem;
    margin-top: var(--spacing-sm);
    font-weight: 400;
}

.profile-desc p {
    margin-bottom: var(--spacing-sm);
    line-height: 2;
    color: var(--text-sub);
}

/* ============================================
   サービスセクション
   ============================================ */
.services-list {
    display: flex;
    flex-direction: column;
}

.service-item {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-sm);
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-md);
    align-items: center;
    transition: background-color var(--transition-medium);
}

.service-item:last-child {
    border-bottom: 1px solid var(--border-color);
}

.service-item:hover {
    background-color: var(--bg-color);
}

.service-thumb {
    width: 200px;
    height: 150px;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    mix-blend-mode: multiply;
    border-radius: 10px;
}

.service-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    width: 100%;
}

.service-item h3 {
    font-family: var(--font-title);
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    margin: 0;
}

.service-item p {
    color: var(--text-sub);
    font-size: 1rem;
    line-height: 1.8;
    margin: 0;
}

/* ============================================
   作品セクション
   ============================================ */

/* 作品認証オーバーレイ */
#works-content {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-medium);
    margin-top: 150px;
}

#works-content.visible {
    opacity: 1;
}

.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.auth-box {
    text-align: center;
    max-width: 400px;
    width: 100%;
    background: transparent;
}

.auth-box h2 {
    font-weight: 300;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-main);
}

.auth-box p {
    color: var(--text-sub);
    margin-bottom: var(--spacing-md);
}

.auth-box input {
    padding: 16px;
    font-size: 1rem;
    margin-top: 1rem;
    border: 1px solid transparent;
    border-bottom: 1px solid var(--text-sub);
    background: transparent;
    width: 100%;
    font-family: var(--font-en);
    color: var(--text-main);
    border-radius: 0;
    transition: border-color var(--transition-fast);
}

.auth-box input:focus {
    outline: none;
    border-bottom-color: var(--text-main);
}

.auth-box button {
    margin-top: 2rem;
    padding: 16px 32px;
    background-color: var(--text-main);
    color: #fff;
    border: none;
    cursor: pointer;
    font-family: var(--font-en);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all var(--transition-fast);
}

.auth-box button:hover {
    background-color: var(--text-sub);
    transform: translateY(-2px);
}

.hint {
    font-size: 0.8rem;
    margin-top: 2rem;
    color: var(--text-sub);
    opacity: 0.5;
}

/* 作品画像 */
.work-img {
    margin-bottom: var(--spacing-lg);
    width: 100%;
}

.work-img img {
    width: 120%;
    transform: translateX(-10%);
    height: auto;
    object-fit: cover;
}

/* 作品イントロ */
.works-intro {
    margin-bottom: var(--spacing-lg);
    text-align: left;
    max-width: 800px;
}

.works-intro p {
    color: var(--text-sub);
    line-height: 2;
}

/* 作品グリッド */
.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    width: 100%;
}

.work-item {
    background: transparent;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.work-item-image-container {
    overflow: hidden;
    position: relative;
    aspect-ratio: 4/3;
    background-color: transparent;
    border-radius: 2px;
}

.work-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    will-change: transform;
}

.work-info {
    font-size: 0.95rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.work-info p {
    font-weight: 500;
    color: var(--text-main);
}

.work-info span {
    font-size: 0.85rem;
    color: var(--text-sub);
}

.works-content-wrapper {
    width: 100%;
}

.works-footer {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
    width: 100%;
}

/* ============================================
   作品詳細ページ
   ============================================ */
.work-hero {
    width: 100%;
    margin-top: var(--header-height);
    margin-bottom: var(--spacing-lg);
}

.work-hero img {
    width: 100%;
    height: auto;
    object-fit: cover;
    max-height: 90vh;
}

.work-detail .content-container {
    grid-template-columns: 1fr;
}

.work-intro {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.work-title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.meta-list {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: var(--spacing-md);
    row-gap: var(--spacing-xs);
    font-size: 0.9rem;
}

.meta-list dt {
    color: var(--text-sub);
}

.meta-list dd {
    color: var(--text-main);
    font-weight: 500;
}

.work-description p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
    color: var(--text-sub);
    font-size: 1rem;
    max-width: 65ch;
}

/* 作品ギャラリー */
.work-gallery {
    margin-bottom: var(--spacing-xl);
}

.gallery-item {
    margin-bottom: var(--spacing-md);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
}

.gallery-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* 作品ナビゲーション */
.work-navigation {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
}

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

.work-navigation a {
    font-size: 1.2rem;
    font-weight: 300;
    transition: color var(--transition-fast);
}

.work-navigation a:hover {
    color: var(--text-sub);
    font-style: italic;
}

/* ページネーション */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0.5rem 1rem;
    font-family: var(--font-en);
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-main);
    background-color: transparent;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pagination .page-numbers:hover {
    background-color: var(--text-main);
    color: #fff;
    border-color: var(--text-main);
    transform: translateY(-2px);
}

.pagination .page-numbers.current {
    background-color: var(--text-main);
    color: #fff;
    border-color: var(--text-main);
    font-weight: 500;
}

.pagination .page-numbers.dots {
    border: none;
    cursor: default;
}

.pagination .page-numbers.dots:hover {
    background-color: transparent;
    color: var(--text-main);
    transform: none;
}

.pagination .prev,
.pagination .next {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   コンタクトフォーム
   ============================================ */
.contact-form-container {
    max-width: 600px;
}

.contact-note {
    color: var(--text-sub);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.contact-form-skeleton {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    opacity: 0.7;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-family: var(--font-en);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-sub);
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    border: 1px solid var(--border-color);
    background-color: transparent;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-main);
    width: 100%;
    transition: border-color var(--transition-fast);
}

.form-submit {
    margin-top: var(--spacing-sm);
}

/* Contact Form 7スタイル */
.wpcf7 {
    max-width: 600px;
}

.wpcf7 p {
    margin-bottom: var(--spacing-sm);
}

.wpcf7 label {
    font-family: var(--font-en);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-sub);
    display: block;
    margin-bottom: 0.5rem;
}

.wpcf7 input[type="text"],
.wpcf7 input[type="email"],
.wpcf7 textarea {
    padding: 1rem;
    border: 1px solid var(--border-color);
    background-color: transparent;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-main);
    width: 100%;
    transition: border-color var(--transition-fast);
}

.wpcf7 input[type="text"]:focus,
.wpcf7 input[type="email"]:focus,
.wpcf7 textarea:focus {
    outline: none;
    border-color: var(--text-main);
}

.wpcf7 input[type="submit"] {
    display: inline-block;
    padding: 16px 40px;
    background-color: var(--text-main);
    color: #fff;
    font-family: var(--font-en);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    border: 1px solid var(--text-main);
    transition: all var(--transition-medium);
    text-align: center;
    cursor: pointer;
}

.wpcf7 input[type="submit"]:hover {
    background-color: transparent;
    color: var(--text-main);
    transform: translateY(-2px);
}

/* ============================================
   フッター
   ============================================ */
.footer-content {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-sub);
    margin-top: var(--spacing-xl);
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
}

.footer-logo-mark {
    height: 16px;
    width: auto;
    vertical-align: middle;
    margin-right: 8px;
    margin-bottom: 2px;
}

/* ============================================
   共通UIコンポーネント
   ============================================ */
.btn-primary {
    display: inline-block;
    padding: 16px 40px;
    background-color: var(--text-main);
    color: #fff;
    font-family: var(--font-en);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    border: 1px solid var(--text-main);
    transition: all var(--transition-medium);
    text-align: center;
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--text-main);
    transform: translateY(-2px);
}

/* ============================================
   アニメーション
   ============================================ */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

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

/* ============================================
   レスポンシブ: PC (1024px以上)
   ============================================ */
@media (min-width: 1024px) {
    .hero-content {
        margin-left: 5vw;
    }

    .hero-logo-img {
        transform: scale(1.3) translateY(30px);
        width: 104%;
        max-width: 500px;
    }

    .content-container {
        grid-template-columns: 100px 1fr;
        gap: var(--spacing-xl);
    }

    .service-info {
        display: grid;
        grid-template-columns: 1fr 2fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 1024px) {
    .profile-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1200px) {
    .works-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 1023px) {
    .profile-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* ============================================
   レスポンシブ: モバイル (768px以下)
   ============================================ */
@media (max-width: 768px) {

    /* ヘッダー */
    .logo img {
        height: 24px;
    }

    /* ヒーローセクション */
    .hero-section {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    .mobile-br {
        display: block;
    }

    /* バナー */
    .banner-img {
        max-height: 210px;
        border-radius: 100px 0 0 100px;
    }

    /* セクション */
    .section {
        padding: 3rem 0;
    }

    .section-title {
        min-height: 120px;
        padding-left: 15px;
        top: 100px;
        transform: translate(0, -50px);
        line-height: 4;
    }

    /* プロフィール */
    .profile-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* サービス */
    .service-item {
        grid-template-columns: 60px 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) 0;
    }

    .service-thumb {
        width: 60px;
        height: 150px;
        padding: 5px;
    }

    .service-thumb img {
        object-fit: cover;
    }

    .service-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }

    .service-item h3 {
        font-size: 1.4rem;
    }

    /* 作品 */
    .works-grid {
        grid-template-columns: 1fr;
    }

    .work-intro {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .gallery-grid-2 {
        grid-template-columns: 1fr;
    }

    /* モバイルナビゲーション */
    .desktop-nav {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--bg-color);
        z-index: 90;
        padding: var(--spacing-xl) var(--spacing-md);
        transform: translateY(-100%);
        transition: transform var(--transition-medium);
    }

    .desktop-nav.active {
        transform: translateY(0);
    }

    .desktop-nav ul {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }

    .desktop-nav a {
        font-size: 1.5rem;
    }

    .mobile-menu-toggle {
        z-index: 101;
        width: 30px;
        height: 24px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .mobile-menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--text-main);
        transition: all 0.3s ease;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: translateY(11px) rotate(45deg);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: translateY(-11px) rotate(-45deg);
    }
}