/*
オプション機能統合セクション
カード型・横並び・視覚重視デザイン（2行×2列）
*/

/* ===========================
   統合オプション機能セクション
   =========================== */

.bt-options-unified {
    padding: 72px 0 80px;
    background: linear-gradient(180deg, #F8FAFC 0%, #EFF6FF 100%);
}

.bt-options-unified__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ヘッダー */
.bt-options-unified__header {
    text-align: center;
    margin-bottom: 56px;
}

.bt-options-unified__title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.bt-options-unified__lead {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    color: #5B6B82;
    line-height: 1.7;
}

/* カードグリッド：2行×2列（PC） */
.bt-options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* 個別カード */
.bt-option-card {
    background: #FFFFFF;
    border: 2px solid #E5E7EB;
    border-radius: 20px;
    padding: 32px 24px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

/* 作業ナビ系カード（青系背景） */
.bt-option-card--navi {
    background: #F5F9FF;
}

/* クラウド系カード（緑系背景） */
.bt-option-card--cloud {
    background: #F5FBF8;
}

.bt-option-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.bt-option-card--navi:hover {
    border-color: #3B82F6;
}

.bt-option-card--cloud:hover {
    border-color: #10B981;
}

/* カードヘッダー */
.bt-option-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
}

/* ラベル（小さめバッジ）*/
.bt-option-card__label {
    display: inline-block;
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 20px;
    line-height: 1;
}

/* 作業ナビ系カード（青系） */
.bt-option-card--navi .bt-option-card__label {
    background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 100%);
    color: #1E40AF;
}

/* クラウド／現場連携系カード（緑系） */
.bt-option-card--cloud .bt-option-card__label {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    color: #065F46;
}

/* アイコン */
.bt-option-card__icon {
    width: 48px;
    height: 48px;
    color: #3B82F6;
    flex-shrink: 0;
}

.bt-option-card--cloud .bt-option-card__icon {
    color: #10B981;
}

/* タイトル */
.bt-option-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.4;
}

/* サブタイトル */
.bt-option-card__subtitle {
    font-size: 0.875rem;
    font-weight: 600;
    color: #6B7280;
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}

/* 説明文 */
.bt-option-card__desc {
    font-size: 0.9375rem;
    color: #4B5563;
    line-height: 1.7;
    flex-grow: 1;
}

/* タグ（作業方式） */
.bt-option-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}

/* タグ（作業ナビ系：青） */
.bt-option-tag {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    border: 1px solid #93C5FD;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #1E40AF;
}

/* タグ（クラウド系：緑） */
.bt-option-tag--cloud {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    border: 1px solid #6EE7B7;
    color: #065F46;
}

/* サブテキスト（小さめ補足） */
.bt-option-card__subtext {
    font-size: 0.8125rem;
    color: #6B7280;
    margin: 8px 0 12px;
    line-height: 1.5;
}

/* 機能バッジ（LED/ボタン） */
.bt-option-card__features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 12px 0;
}

.bt-option-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: #374151;
    font-weight: 500;
}

.bt-option-feature__icon {
    width: 20px;
    height: 20px;
    color: #3B82F6;
    flex-shrink: 0;
}

/* 共通注記ボックス（黄色トーン） */
.bt-options-unified__note {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    border: 2px solid #FCD34D;
    border-radius: 16px;
    padding: 24px 32px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.bt-options-unified__note p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 1rem;
    color: #92400E;
    line-height: 1.6;
    margin: 0;
}

.bt-options-unified__note-icon {
    width: 24px;
    height: 24px;
    color: #D97706;
    flex-shrink: 0;
}

.bt-options-unified__note strong {
    color: #78350F;
    font-weight: 700;
}

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

/* タブレット（3列→2列） */
@media (max-width: 980px) {
    .bt-options-unified {
        padding: 56px 0 64px;
    }

    .bt-options-unified__header {
        margin-bottom: 40px;
    }

    .bt-options-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        margin-bottom: 40px;
    }

    .bt-option-card {
        padding: 28px 20px;
        min-height: 240px;
    }

    .bt-option-card__icon {
        width: 40px;
        height: 40px;
    }

    .bt-option-card__title {
        font-size: 1.125rem;
    }

    .bt-options-unified__note {
        padding: 20px 24px;
    }
}

/* スマートフォン（1列） */
@media (max-width: 768px) {
    .bt-options-unified {
        padding: 48px 0 56px;
    }

    .bt-options-unified__container {
        padding: 0 20px;
    }

    .bt-options-unified__header {
        margin-bottom: 36px;
    }

    .bt-options-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 36px;
    }

    .bt-option-card {
        padding: 24px 20px;
        min-height: auto;
    }

    .bt-option-card__header {
        flex-direction: column;
        gap: 12px;
    }

    .bt-option-card__icon {
        width: 36px;
        height: 36px;
    }

    .bt-option-card__title {
        font-size: 1.0625rem;
    }

    .bt-option-card__tags {
        gap: 6px;
    }

    .bt-option-tag {
        padding: 5px 10px;
        font-size: 0.75rem;
    }

    .bt-options-unified__note {
        padding: 18px 20px;
    }

    .bt-options-unified__note p {
        flex-direction: column;
        gap: 8px;
        font-size: 0.9375rem;
    }
}

/* 小型スマートフォン */
@media (max-width: 480px) {
    .bt-options-unified {
        padding: 40px 0 48px;
    }

    .bt-options-unified__container {
        padding: 0 16px;
    }

    .bt-option-card {
        padding: 20px 16px;
    }

    .bt-option-card__label {
        padding: 5px 12px;
        font-size: 0.6875rem;
    }

    .bt-option-card__icon {
        width: 32px;
        height: 32px;
    }

    .bt-option-card__title {
        font-size: 1rem;
    }

    .bt-option-card__subtitle {
        font-size: 0.8125rem;
    }

    .bt-option-card__desc {
        font-size: 0.875rem;
    }

    .bt-option-tag {
        padding: 4px 8px;
        font-size: 0.6875rem;
    }

    .bt-options-unified__note {
        padding: 16px;
    }

    .bt-options-unified__note p {
        font-size: 0.875rem;
    }

    .bt-options-unified__note-icon {
        width: 20px;
        height: 20px;
    }
}