/* cases.html 専用。トーンは style.css の緑・土色・#fcfaf9 に合わせる */

.cases-page {
    background: linear-gradient(to bottom, #fcfaf9 0%, #ffffff 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.cases-main {
    flex: 1;
}

.cases-hero {
    padding: 70px 0 40px;
    background: linear-gradient(to bottom, #fcfaf9 0%, #ffffff 100%);
}

.cases-kicker {
    display: block;
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-teal);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.cases-hero .section-title {
    margin-bottom: 20px;
}

.cases-lead {
    max-width: 720px;
    margin: 0 auto 28px;
    text-align: center;
    font-size: 1.05rem;
    color: #555;
}

.cases-note {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff;
    border-left: 5px solid var(--soil-brown);
    border-radius: 8px;
    padding: 20px 24px;
    box-shadow: 0 10px 30px rgba(93, 64, 55, 0.08);
}

.cases-badge {
    display: inline-block;
    background: #efebe9;
    color: var(--soil-brown);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 50px;
    margin-bottom: 10px;
}

.case-meta .cases-badge {
    display: block;
    width: fit-content;
    margin-bottom: 14px;
}

.cases-note p {
    margin: 0;
    font-size: 0.9rem;
    color: #555;
    line-height: 1.8;
}

.case-article {
    padding: 60px 0 20px;
    scroll-margin-top: 80px;
}

.case-article--alt {
    background: #ffffff;
    border-top: 1px solid #eee0d9;
}

.case-structure {
    margin: 20px 0 0;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--accent-teal);
}

.case-meta {
    margin-bottom: 50px;
    position: static;
    background: transparent;
    box-shadow: none;
    padding: 0;
    z-index: auto;
}

.case-number {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent-teal);
    margin-bottom: 8px;
}

.case-title {
    font-size: 1.8rem;
    color: var(--text-main);
    margin: 0 0 8px;
    line-height: 1.4;
}

.case-subtitle {
    font-size: 1.1rem;
    color: var(--primary-green);
    font-weight: 700;
    margin: 0 0 18px;
}

.case-title + .case-tags {
    margin-top: 10px;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.case-tags li {
    background: #e8f5e9;
    color: var(--primary-green);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 50px;
}

.case-tags li.is-sub {
    background: #ffffff;
    color: #666;
    border: 1px dashed #b0bec5;
}

.case-block {
    margin-bottom: 70px;
}

.case-block-title {
    font-size: 1.35rem;
    color: var(--primary-green);
    border-left: 5px solid var(--primary-green);
    padding-left: 12px;
    margin: 0 0 24px;
    line-height: 1.5;
}

.case-phase {
    display: inline-block;
    background: var(--primary-green);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 3px 10px;
    border-radius: 4px;
    margin-right: 10px;
    vertical-align: middle;
    position: relative;
    top: -2px;
}

.case-block-lead {
    margin: 0 0 28px;
    color: #555;
}

/* 課題：付箋風カード */
.pain-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.pain-cards--two {
    grid-template-columns: repeat(2, 1fr);
    max-width: 760px;
}

.pain-card {
    background: #fffdf7;
    border-radius: 4px 12px 12px 12px;
    padding: 28px 24px 24px;
    box-shadow: 0 12px 28px rgba(93, 64, 55, 0.1);
    position: relative;
}

.pain-card:nth-child(1) { transform: rotate(-0.8deg); }
.pain-card:nth-child(2) { transform: rotate(0.6deg); }
.pain-card:nth-child(3) { transform: rotate(-0.4deg); }

.pain-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 18px;
    width: 36px;
    height: 8px;
    background: rgba(0, 137, 123, 0.35);
    border-radius: 0 0 3px 3px;
}

.pain-card h4 {
    margin: 12px 0 10px;
    color: var(--soil-brown);
    font-size: 1.1rem;
}

.pain-card p {
    margin: 0;
    font-size: 0.92rem;
    color: #555;
}

/* 解決の3ステップ：横並びフロー */
.flow-steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 8px;
    align-items: stretch;
}

.flow-step {
    background: #ffffff;
    border-radius: 12px;
    padding: 28px 22px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-top: 4px solid var(--primary-green);
    text-align: center;
}

.flow-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-teal));
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    margin-bottom: 12px;
}

.flow-step h4 {
    margin: 0 0 10px;
    color: var(--primary-green);
    font-size: 1.05rem;
}

.flow-sub {
    display: inline-block;
    margin-top: 4px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--accent-teal);
}

.flow-step p {
    margin: 0;
    font-size: 0.9rem;
    color: #555;
    text-align: left;
}

.flow-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-teal);
    font-size: 1.6rem;
    font-weight: 700;
    padding-top: 20px;
}

.case-points {
    background: #ffffff;
    border-radius: 12px;
    padding: 28px 32px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.case-article--alt .case-points {
    background: #fcfaf9;
}

.case-points h4 {
    margin: 0 0 14px;
    color: var(--primary-green);
}

.case-points ul {
    margin: 0;
    padding-left: 1.2em;
    color: #555;
}

.case-points li {
    margin-bottom: 10px;
}

.case-points li:last-child {
    margin-bottom: 0;
}

.case-result {
    margin: 20px 0 0;
    padding: 14px 18px;
    background: #e8f5e9;
    border-left: 4px solid var(--primary-green);
    border-radius: 8px;
    color: var(--primary-green);
    font-weight: 700;
    font-size: 1.05rem;
}

.case-result-mark {
    font-weight: 700;
}

.case-result-note {
    margin: 10px 0 0;
    font-size: 0.82rem;
    color: #777;
    line-height: 1.6;
}

/* CTA */
.cases-cta {
    background: #fcfaf9;
    padding: 70px 0 20px;
}

.cases-cta-box {
    background: #ffffff;
    border-radius: 16px;
    border-top: 5px solid var(--primary-green);
    box-shadow: 0 15px 45px rgba(46, 125, 50, 0.08);
    padding: 48px 40px;
    text-align: center;
}

.cases-cta-box h2 {
    margin: 0 0 16px;
    color: var(--primary-green);
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.5;
}

.cases-cta-box > p {
    max-width: 700px;
    margin: 0 auto 28px;
    color: #555;
}

.cases-cta-note {
    max-width: 700px;
    margin: 20px auto 0 !important;
    text-align: center;
    font-size: 0.88rem;
    color: #666;
}

.cases-page .cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.cases-page .cta-actions .back-btn {
    margin: 0;
}

.cases-page .back-to-top-container {
    padding-bottom: 30px;
}

@media (max-width: 900px) {
    .pain-cards,
    .pain-cards--two {
        grid-template-columns: 1fr;
    }

    .pain-card:nth-child(1),
    .pain-card:nth-child(2),
    .pain-card:nth-child(3) {
        transform: none;
    }

    .flow-steps {
        grid-template-columns: 1fr;
    }

    .flow-arrow {
        padding: 0;
        transform: rotate(90deg);
        height: 28px;
    }
}

@media (max-width: 768px) {
    .cases-page .flex-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .cases-page .logo {
        font-size: 1.5rem;
        white-space: nowrap;
    }

    .cases-page header nav ul {
        gap: 10px 16px;
        flex-wrap: wrap;
        justify-content: flex-start;
        width: 100%;
    }

    .cases-page header nav a {
        font-size: 0.82rem;
    }

    .cases-hero {
        padding: 40px 0 24px;
    }

    .cases-hero .section-title {
        font-size: 1.7rem;
        line-height: 1.45;
        word-break: keep-all;
        margin-bottom: 16px;
    }

    .case-title {
        font-size: 1.4rem;
        word-break: keep-all;
    }

    .cases-cta-box {
        padding: 32px 20px;
    }
}