/* ============================================
   10 - Reasons Section
   白 × 水色 × 蒼 / コンテンツ連動デザイン
   ============================================ */

.reasons {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 70% 60% at 50% 0%,
            rgba(0, 212, 255, 0.08) 0%, transparent 65%),
        var(--bg-light);
}

/* 右下アクセント光 */
.reasons::after {
    content: '';
    position: absolute;
    bottom: -10%; right: -5%;
    width: 480px; height: 480px;
    border-radius: 50%;
    background: radial-gradient(circle,
        rgba(0, 102, 255, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

/* ===== グリッド ===== */
.reasons-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

/* ===== カード ===== */
.reason-item {
    position: relative;
    background: white;
    border-radius: 20px;
    padding: 0;
    overflow: hidden;
    border: 1.5px solid rgba(0, 102, 255, 0.07);
    box-shadow: 0 2px 12px rgba(0, 102, 255, 0.04);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    display: flex;
    flex-direction: column;
}

.reason-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(0, 102, 255, 0.13);
    border-color: rgba(0, 102, 255, 0.22);
}

/* 上部カラーバー */
.reason-item::before {
    content: '';
    display: block;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--primary-blue) 100%);
    opacity: 0.5;
    transition: opacity 0.3s;
}

.reason-item:hover::before {
    opacity: 1;
}

/* ===== カード内部 ===== */
.reason-body {
    padding: 36px 40px 40px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

/* ===== ヘッダー行 ===== */
.reason-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 24px;
}

/* アイコンバッジ */
.reason-icon-wrap {
    width: 56px; height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: linear-gradient(135deg,
        rgba(0, 102, 255, 0.10) 0%,
        rgba(0, 212, 255, 0.14) 100%);
    border: 1.5px solid rgba(0, 102, 255, 0.15);
    transition: all 0.3s ease;
    color: var(--primary-blue);
}

.reason-item:hover .reason-icon-wrap {
    background: linear-gradient(135deg,
        rgba(0, 102, 255, 0.18) 0%,
        rgba(0, 212, 255, 0.22) 100%);
    border-color: rgba(0, 102, 255, 0.3);
    transform: scale(1.08);
}

/* 大きな背景番号 */
.reason-bg-num {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.04em;
    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: 0.10;
    user-select: none;
    transition: opacity 0.3s;
}

.reason-item:hover .reason-bg-num {
    opacity: 0.18;
}

/* ===== タイトル ===== */
.reason-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.4;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

/* ===== 本文 ===== */
.reason-text {
    font-size: 0.9375rem;
    color: var(--text-gray);
    line-height: 1.8;
    flex: 1;
}

/* ===== 下部キーポイントタグ ===== */
.reason-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 102, 255, 0.07);
}

.reason-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-blue);
    background: rgba(0, 102, 255, 0.06);
    border: 1px solid rgba(0, 102, 255, 0.14);
    border-radius: 100px;
    padding: 4px 12px;
    transition: background 0.2s;
}

.reason-item:hover .reason-tag {
    background: rgba(0, 102, 255, 0.10);
}

.reason-tag-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--accent-cyan);
    flex-shrink: 0;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .reasons-grid { grid-template-columns: 1fr; gap: 16px; }
    .reason-body  { padding: 28px 24px 32px; }
    .reason-bg-num { font-size: 3.5rem; }
}