/* ============================================
   DECISION CENTER (Bảng Phê Duyệt)
   ============================================ */

.dc-container { max-width: 1200px; margin: 0 auto; }

.dc-tab-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}
.dc-tab-btn:hover { border-color: rgba(99,102,241,0.3); color: var(--text-primary); }
.dc-tab-btn.active {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    border-color: transparent;
}

/* Card layout */
.dc-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 15px;
}
.dc-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    transition: all 0.2s;
}
.dc-card:hover {
    border-color: rgba(99,102,241,0.2);
    box-shadow: 0 6px 24px rgba(0,0,0,0.06);
}
.dc-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
    margin-bottom: 14px;
}
.dc-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px;
}
.dc-card-meta {
    font-size: 0.78rem;
    color: var(--text-secondary);
    display: flex;
    gap: 12px;
    align-items: center;
}
.dc-badge-type {
    font-size: 0.65rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 6px;
    text-transform: uppercase;
    background: rgba(99,102,241,0.1);
    color: #818cf8;
}
.dc-badge-type.scope_change { background: rgba(139, 92, 246, 0.1); color: #a78bfa; }
.dc-badge-type.date_change { background: rgba(245, 158, 11, 0.1); color: #fbbf24; }
.dc-badge-type.create_task { background: rgba(16, 185, 129, 0.1); color: #34d399; }

.dc-card-body {
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 16px;
}
.dc-change-details {
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    font-size: 0.8rem;
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.dc-change-row { display: flex; gap: 8px; }
.dc-change-label { color: var(--text-secondary); min-width: 100px; }
.dc-change-val-old { color: #ef4444; text-decoration: line-through; }
.dc-change-val-new { color: #10b981; font-weight: 700; }

.dc-card-footer {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
    border-top: 1px dashed var(--border-color);
    padding-top: 14px;
}
.dc-notes-input {
    flex: 1;
    min-width: 250px;
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 0.8rem;
    color: var(--text-primary);
    resize: none;
    height: 38px;
    transition: all 0.2s;
}
.dc-notes-input:focus {
    border-color: #6366f1;
    outline: none;
}
.dc-actions-wrapper {
    display: flex;
    gap: 8px;
}
.dc-btn {
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}
.dc-btn.approve {
    background: #10b981;
    color: #fff;
}
.dc-btn.approve:hover { background: #059669; }
.dc-btn.reject {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.2);
}
.dc-btn.reject:hover { background: rgba(239, 68, 68, 0.2); }

/* Empty state */
.dc-empty {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: 16px;
}
.dc-empty-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.4; }
.dc-empty h3 { margin: 0 0 8px; font-size: 1rem; color: var(--text-primary); }
.dc-empty p { margin: 0; font-size: 0.85rem; color: var(--text-secondary); }