/* ============================================
   11 - About Section
   シャープ（radius 0〜4px）× ドットグリッド背景
   ============================================ */

.about {
    position: relative;
    background: white;
    overflow: hidden;
}

/* ドットグリッド */
.about::before {
    content: '';
    position: absolute; inset: 0;
    background-image: radial-gradient(circle, rgba(0,102,255,0.04) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

/* ===== ヘッダー ===== */
.about-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 56px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--bg-gray);
    position: relative; z-index: 1;
}

.about-title {
    font-family: var(--font-heading);
    font-size: clamp(2.25rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.about-header-note {
    font-size: 0.8125rem;
    color: var(--text-light);
    line-height: 1.9;
    max-width: 280px;
    text-align: right;
}

/* ============================================
   VMV グリッド
   ============================================ */
.about-vmv-grid,
.about-vision-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 3px solid transparent;
    border-image: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%) 1;
    border-left: 1px solid var(--bg-gray);
    border-right: 1px solid var(--bg-gray);
    border-bottom: 1px solid var(--bg-gray);
    margin-bottom: 60px;
    position: relative; z-index: 1;
}

.about-vmv-card,
.about-vision-card {
    background: white;
    padding: 40px;
    position: relative;
    transition: background 0.2s;
}

.about-vmv-card + .about-vmv-card,
.about-vision-card + .about-vision-card {
    border-left: 1px solid var(--bg-gray);
}

.about-vmv-card:hover,
.about-vision-card:hover { background: #F5F8FF; }

/* ラベル行 */
.vmv-label-row,
.about-vision-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.vmv-label,
.about-vision-label {
    font-size: 0.6875rem;
    font-weight: 800;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--primary-blue);
}

/* 透かし番号 */
.vmv-num,
.about-vision-num {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.09;
    user-select: none;
    letter-spacing: -0.04em;
    transition: opacity 0.2s;
}

.about-vmv-card:hover .vmv-num,
.about-vision-card:hover .about-vision-num { opacity: 0.18; }

/* 短い蒼ライン */
.vmv-divider,
.about-vision-divider {
    width: 24px; height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
    margin-bottom: 16px;
}

.vmv-title,
.about-vision-title {
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.65;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
}

.vmv-text,
.about-vision-text {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.9;
}

/* ============================================
   会社情報テーブル
   ============================================ */
.company-info {
    border: 1px solid var(--bg-gray);
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, var(--primary-blue) 0%, var(--accent-cyan) 100%) 1;
    background: white;
    position: relative; z-index: 1;
}

/* ヘッダーバー */
.company-info-bar {
    background: var(--text-dark);
    padding: 14px 36px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.company-info-bar-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
}

.company-info-bar-title {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.65);
}

/* 行 */
.company-info-row,
.company-info-item {
    display: grid;
    grid-template-columns: 180px 1fr;
    border-bottom: 1px solid var(--bg-gray);
    transition: background 0.15s;
}
.company-info-row:last-child,
.company-info-item:last-child { border-bottom: none; }

.company-info-row:nth-child(even),
.company-info-item:nth-child(even) { background: var(--bg-light); }

.company-info-row:hover,
.company-info-item:hover { background: #EFF5FF; }

.company-info-label {
    padding: 20px 16px 20px 36px;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-light);
    letter-spacing: 0.04em;
    border-right: 1px solid var(--bg-gray);
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}

.company-info-label::before {
    content: '';
    display: block;
    width: 2px; height: 14px;
    background: linear-gradient(180deg, var(--primary-blue), var(--accent-cyan));
    flex-shrink: 0;
    opacity: 0.3;
    transition: opacity 0.2s;
}

.company-info-row:hover .company-info-label::before,
.company-info-item:hover .company-info-label::before { opacity: 1; }

.company-info-value {
    padding: 20px 36px;
    font-size: 0.9375rem;
    color: var(--text-dark);
    line-height: 1.85;
    display: flex;
    align-items: center;
}

/* 会社名のみ大きく */
.company-info-row:first-child .company-info-value,
.company-info-item:first-child .company-info-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
    .about-header { flex-direction: column; align-items: flex-start; gap: 10px; margin-bottom: 40px; }
    .about-header-note { text-align: left; max-width: 100%; }

    .about-vmv-grid,
    .about-vision-grid { grid-template-columns: 1fr; margin-bottom: 40px; }

    .about-vmv-card,
    .about-vision-card { padding: 28px 24px; }

    .about-vmv-card + .about-vmv-card,
    .about-vision-card + .about-vision-card {
        border-left: none;
        border-top: 1px solid var(--bg-gray);
    }

    .company-info-bar { padding: 12px 20px; }

    .company-info-row,
    .company-info-item { grid-template-columns: 72px 1fr; }

    .company-info-label {
        padding: 14px 8px 14px 16px;
        font-size: 0.75rem;
        gap: 6px;
    }
    .company-info-label::before { display: none; }

    .company-info-value { padding: 14px 16px; font-size: 0.875rem; }

    .company-info-row:first-child .company-info-value,
    .company-info-item:first-child .company-info-value { font-size: 1.125rem; }
}