/* リセットCSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', Meiryo, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* コンテナ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #eee;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header--scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
}

.logo img {
    height: 60px;
}

.nav {
    display: flex;
    gap: 15px;
    background: rgba(248, 249, 250, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 25px;
    padding: 8px 12px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(30, 144, 255, 0.1), transparent);
    transition: left 0.5s ease;
    z-index: -1;
}

.nav-link:hover {
    color: #1e90ff;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.1), rgba(0, 191, 255, 0.1));
    border: 1px solid rgba(30, 144, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 144, 255, 0.2);
}

.nav-link:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px rgba(30, 144, 255, 0.2);
}

/* ボタン */
.cta-button {
    background: linear-gradient(135deg, #1e90ff, #00bfff);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 15px 30px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(30, 144, 255, 0.3);
}

.cta-button--header {
    padding: 10px 20px;
    font-size: 14px;
}

.cta-button--primary {
    background: linear-gradient(135deg, #ff6b35, #ff8e53);
}

.cta-button--primary:hover {
    box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
}

.cta-button--secondary {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
}

.cta-button--secondary:hover {
    box-shadow: 0 10px 25px rgba(78, 205, 196, 0.3);
}

.cta-button--large {
    padding: 20px 40px;
    font-size: 18px;
}

/* ファーストビュー */
.hero {
    position: relative;
    height: 100vh;
/*    min-height: 600px; */
    min-height: 770px; 
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-image: url("./images/hero.jpg");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 20px;
    margin-top: 170px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-title .highlight {
    color: #ff6b35;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-cta {
    margin-top: 30px;
}

.cta-note {
    margin-top: 15px;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* セクション共通 */
.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 60px;
    color: #333;
}

section {
    padding: 80px 0;
}

/* 問題提起 */
.problems {
    background: #f8f9fa;
}

.problems-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.problem-item {
    background: white;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.problem-item:hover {
    transform: translateY(-5px);
}

.problem-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    background: #fff5f5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.problem-icon img {
    width: 100px;
    height: 100px;
}

.problem-item h3 {
    font-size: 1.1rem;
    color: #555;
    line-height: 1.5;
}

/* TSURETAの提供価値 */
.value-prop {
/*    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);*/ 
    background: linear-gradient(135deg, #667eea 0%, #667eea 100%);
    color: white;
}

.value-prop .section-title {
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.value-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.value-emoji {
    font-size: 2rem;
    flex-shrink: 0;
}

.value-emoji img {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

.value-item h3 {
    font-size: 1.2rem;
    line-height: 1.4;
}

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

/* 機能紹介 */
.features {
    background: #f8f9fa;
}

.feature-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.feature-item--reverse {
    direction: rtl;
}

.feature-item--reverse .feature-content {
    direction: ltr;
}

.feature-content h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.feature-content h3 {
    font-size: 1.4rem;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.feature-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 30px;
    color: #555;
    text-align: left;
}

.feature-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 信頼性 */
.trust {
    background: white;
}

.trust-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.trust-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.trust-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: #555;
    text-align: left;
}

/* TSURETAのメリット・効果 */
.benefits {
    background: linear-gradient(135deg, #00bfff 0%, #007fff 100%);
    color: white;
}

.benefits .section-title {
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
}

.benefit-item {
    display: grid;
    grid-template-columns: 80px 1fr 120px;
    gap: 30px;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px 35px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.15);
}

.benefit-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffffff, #eff5ff );
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
    color: black;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

.benefit-content h3 {
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 15px;
    color: white;
}

.benefit-content p {
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
}

.benefit-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    justify-self: center;
}

.benefit-icon img {
    width: 80px;
    height: 80px;
}

/* 料金プラン */
.pricing {
    background: white;
}

.pricing-plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-plan {
    background: #f8f9fa;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    border: 3px solid transparent;
    transition: all 0.3s ease;
}

.pricing-plan--featured {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: scale(1.05);
    border-color: #667eea;
}

.plan-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #ff6b35;
    color: white;
    padding: 5px 20px;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: bold;
}

.pricing-plan h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.price {
    margin-bottom: 10px;
}

.price-amount {
    font-size: 3rem;
    font-weight: bold;
    color: #1e90ff;
}

.pricing-plan--featured .price-amount {
    color: white;
}

.price-unit {
    font-size: 1.2rem;
    margin-left: 10px;
}

.price-tax {
    font-size: 0.9rem;
    opacity: 0.7;
}

.plan-discount {
    color: #ff6b35;
    font-weight: bold;
    margin-bottom: 20px;
}

.pricing-plan--featured .plan-discount {
    color: #ffeb3b;
}

.plan-features {
    list-style: none;
    margin-bottom: 30px;
}

.plan-features li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.pricing-plan--featured .plan-features li {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.plan-note {
    margin-top: 15px;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* FAQ */
.faq {
    background: #f8f9fa;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: #f8f9fa;
}

.faq-question h4 {
    font-size: 1.1rem;
    color: #333;
}

.faq-toggle {
    font-size: 1.5rem;
    color: #1e90ff;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 0 30px 25px;
    color: #555;
    line-height: 1.6;
}

/* 最終CTA */
.final-cta {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    text-align: center;
}

.final-cta-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 40px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* フッター */
.footer {
    background: rgba(255, 255, 255, 0.95);
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.footer-logo img {
    height: 40px;
}

.footer-nav {
    display: flex;
    gap: 30px;
}

.footer-nav a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-nav a:hover {
    color: blue;
}

.footer-copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    color: #999;
    font-size: 0.9rem;
}

/* Coming Soon スタイル */
.coming-soon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    font-weight: bold;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: default;
}

.coming-soon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ヘッダー用 */
.coming-soon--header {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    color: white;
    padding: 8px 16px;
    font-size: 0.9rem;
    box-shadow: 0 10px 25px rgba(78, 205, 196, 0.3);
}

/* ヒーロー用 */
.coming-soon--hero {
    background: white;
    color: #ff6b35;
    padding: 30px 50px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(255, 107, 53, 0.4);
    text-align: center;
    flex-direction: column;
}

.coming-soon-logo {
    max-width: 300px;
    height: auto;
    margin-bottom: 15px;
}

.coming-soon-main {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.coming-soon-sub {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #ff6b35;
}

.coming-soon-description {
    font-size: 1rem;
    opacity: 0.9;
    color: #ff6b35;
}

/* セカンダリ用 */
.coming-soon--secondary {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    box-shadow: 0 10px 25px rgba(78, 205, 196, 0.3);
}

/* プラン用 */
.coming-soon--plan {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
    flex-direction: column;
    margin: 20px 0;
}

.coming-soon--plan .coming-soon-main {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.coming-soon--plan .coming-soon-sub {
    font-size: 1rem;
}

/* 最終CTA用 */
.coming-soon--final {
    background: white;
    color: #ff6b35;
    padding: 40px 60px;
    border-radius: 25px;
    box-shadow: 0 20px 40px rgba(255, 107, 53, 0.4);
    flex-direction: column;
    position: relative;
}

.coming-soon-badge {
    background: #ff6b35;
    color: white;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.9rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.coming-soon--final .coming-soon-logo {
    max-width: 350px;
    margin-bottom: 20px;
}

.coming-soon--final .coming-soon-main {
    font-size: 3rem;
    margin-bottom: 10px;
}

.coming-soon--final .coming-soon-sub {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.coming-soon--final .coming-soon-description {
    font-size: 1.1rem;
}

/* ホバー効果 */
.coming-soon:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

/* アンカーリンク用のオフセット調整 */
#features,
#merit,
#faq {
    scroll-margin-top: 100px; /* PC用 */
}

/* 画像プレースホルダー(開発用) */
img[src*="./images/"] {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 0.9rem;
}

img[src*="./images/"]:after {
    content: "画像準備中";
}

/* ========================================
   レスポンシブ対応
   ======================================== */

@media (max-width: 768px) {
    /* ヘッダー */
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav {
        width: 100%;
        justify-content: center;
        gap: 10px;
        padding: 6px 10px;
    }
    
    .nav-link {
        padding: 8px 15px;
        font-size: 14px;
    }
    
    .header-cta {
        width: 100%;
        display: flex;
        justify-content: center;
    }
    
    .cta-button--header {
        width: 100%;
    }
    
    /* ヒーロー */
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    /* セクション共通 */
    .section-title {
        font-size: 2rem;
    }
    
    /* 問題提起 */
    .problems-list {
        grid-template-columns: 1fr;
    }
    
    /* 提供価値 */
    .value-list {
        grid-template-columns: 1fr;
    }
    
    /* 機能紹介 */
    .feature-item {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .feature-item--reverse {
        direction: ltr;
    }
    
    /* 信頼性 */
    .trust-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    /* メリット・効果 */
    .benefit-item {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
        padding: 30px 25px;
    }
    
    .benefit-number {
        justify-self: center;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .benefit-icon {
        width: 80px;
        height: 80px;
    }
    
    .benefit-icon img {
        width: 60px;
        height: 60px;
    }
    
    /* 料金プラン */
    .pricing-plans {
        grid-template-columns: 1fr;
    }
    
    .pricing-plan--featured {
        transform: none;
    }
    
    /* 最終CTA */
    .final-cta-title {
        font-size: 2rem;
    }
    
    /* フッター */
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 15px;
    }
    
    /* Coming Soon */
    .coming-soon--hero {
        padding: 25px 30px;
    }
    
    .coming-soon-logo {
        max-width: 250px;
    }
    
    .coming-soon-main {
        font-size: 2rem;
    }
    
    .coming-soon--final {
        padding: 30px 40px;
    }
    
    .coming-soon--final .coming-soon-logo {
        max-width: 280px;
    }
    
    .coming-soon--final .coming-soon-main {
        font-size: 2.5rem;
    }
    
    #features,
    #merit,
    #faq {
        scroll-margin-top: 140px;
    }
}

@media (max-width: 480px) {
    /* ヘッダー */
    .nav {
        gap: 8px;
        padding: 4px 8px;
    }
    
    .nav-link {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    /* 共通 */
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 60px 0;
    }
    
    /* ヒーロー */
    .hero-title {
        font-size: 1.8rem;
    }
    
    /* セクション */
    .section-title {
        font-size: 1.8rem;
    }
    
    /* 各種アイテム */
    .problem-item,
    .pricing-plan {
        padding: 25px 20px;
    }
    
    /* 機能紹介 */
    .feature-content h3 {
        font-size: 1.5rem;
    }
    
    /* メリット・効果 */
    .benefits-grid {
        gap: 40px;
    }
    
    .benefit-item {
        padding: 25px 20px;
    }
    
    .benefit-content h3 {
        font-size: 1.2rem;
    }
    
    .benefit-content p {
        font-size: 0.95rem;
    }
    
    /* FAQ */
    .faq-question {
        padding: 20px;
    }
    
    .faq-answer p {
        padding: 0 20px 20px;
    }
    
    /* 最終CTA */
    .final-cta-title {
        font-size: 1.8rem;
    }
    
    /* Coming Soon */
    .coming-soon--hero {
        padding: 20px 25px;
    }
    
    .coming-soon-logo {
        max-width: 200px;
    }
    
    .coming-soon-main {
        font-size: 1.8rem;
    }
    
    .coming-soon--final {
        padding: 25px 30px;
    }
    
    .coming-soon--final .coming-soon-logo {
        max-width: 220px;
    }
    
    .coming-soon--final .coming-soon-main {
        font-size: 2rem;
    }
    
    #features,
    #merit,
    #faq {
        scroll-margin-top: 150px;
    }
}