/* ==================================== */
/* story.css: MONOID Brand Identity */
/* ==================================== */

/* 1. リード文のタイポグラフィ */
.story-lead-box {
    max-width: 860px;
    margin: 0 auto 120px;
    text-align: center;
}

.story-lead-box p {
    line-height: 2.4; /* 数学的な美しさを出すための広めの行間 */
    font-size: 1.15rem;
    color: var(--text-muted-dark);
    letter-spacing: 0.02em;
}

.concept-keyword {
    font-weight: 700;
    color: var(--primary-blue);
    position: relative;
    display: inline-block;
}

/* 2. 約束（Promise）セクションのグリッド */
.promise-grid {
    display: grid;
    gap: 100px; /* 項目間の大胆な余白 */
    max-width: 1000px;
    margin: 0 auto;
}

.promise-item {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.promise-num {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--primary-blue);
    letter-spacing: 0.2em;
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 8px;
    flex-shrink: 0;
    line-height: 1;
}

.promise-content {
    flex: 1;
}

.promise-content h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 25px;
    line-height: 1.5;
}

.promise-content p {
    line-height: 2;
    color: var(--text-muted-dark);
    font-size: 1rem;
}

/* 3. 結びのメッセージ（代表の想い） */
.message-footer {
    margin-top: 150px;
    padding-top: 100px;
    border-top: 1px solid var(--glass-border);
    max-width: 860px;
    margin-left: auto;
    margin-right: auto;
}

.representative-name {
    text-align: right;
    margin-top: 60px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    color: var(--text-dark);
}

/* 4. レスポンシブ調整 */
@media (max-width: 768px) {
    .story-lead-box { margin-bottom: 60px; }
    .story-lead-box p { font-size: 1rem; text-align: left; }
    
    .promise-grid { gap: 60px; }
    .promise-item { flex-direction: column; gap: 20px; }
    
    .promise-content h3 { font-size: 1.3rem; }
    
    .message-footer { margin-top: 80px; padding-top: 60px; }
}