.page-stack {
    display: grid;
    gap: 20px;
}

.bt-card {
    border-radius: 20px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.05);
}

.bt-card-soft {
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
}

.page-intro {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.page-intro-title {
    font-size: 18px;
    font-weight: 700;
    color: #0f172a;
}

.page-intro-subtitle {
    margin-top: 6px;
    color: #64748b;
    line-height: 1.7;
}

.feedback-alert {
    margin-top: 18px;
    border-radius: 16px;
    padding: 14px 16px;
}

.feedback-alert-success {
    background: rgba(82, 196, 26, 0.12);
    color: #166534;
}

.feedback-alert-danger {
    background: rgba(220, 38, 38, 0.12);
    color: #991b1b;
}

.feedback-alert-info {
    background: rgba(22, 119, 255, 0.12);
    color: #1d4ed8;
}

.section-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 16px;
    gap: 8px;
    flex-wrap: wrap;
}

.form-grid {
    display: grid;
    gap: 16px;
}

.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-col {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field-span-2 {
    grid-column: span 2;
}

.bt-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #334155;
}

.bt-native-select,
.bt-textarea {
    width: 100%;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    padding: 10px 12px;
    background: #fff;
    color: #0f172a;
}

.bt-textarea {
    resize: vertical;
    min-height: 120px;
}

.bt-table-shell {
    overflow-x: auto;
}

.bt-table {
    width: 100%;
    border-collapse: collapse;
}

.bt-table th,
.bt-table td {
    padding: 14px 12px;
    border-bottom: 1px solid #f0f0f0;
    text-align: left;
}

.bt-table th {
    color: #64748b;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.cell-strong {
    font-weight: 700;
    color: #0f172a;
}

.empty-cell {
    text-align: center;
    color: #94a3b8;
    padding: 28px 12px;
}

.action-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.align-right {
    text-align: right !important;
}

.bt-dialog-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.34);
    backdrop-filter: blur(4px);
    z-index: 1000;
}

.bt-dialog-shell {
    position: fixed;
    inset: 50% auto auto 50%;
    transform: translate(-50%, -50%);
    width: min(920px, calc(100vw - 24px));
    z-index: 1001;
}

.selection-list {
    display: grid;
    gap: 10px;
}

.selection-item {
    width: 100%;
    text-align: left;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 16px;
    background: #fff;
    padding: 14px 16px;
    transition: all 0.2s ease;
}

.selection-item:hover {
    border-color: rgba(24, 144, 255, 0.35);
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.08);
}

.selection-item.is-active {
    border-color: #1677ff;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.12), rgba(19, 194, 194, 0.08));
    box-shadow: 0 10px 28px rgba(24, 144, 255, 0.14);
}

.selection-item-title {
    font-weight: 700;
    color: #0f172a;
}

.selection-item-main {
    min-width: 0;
}

.selection-item-meta {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.selection-item-subtitle {
    margin-top: 6px;
    color: #64748b;
    font-size: 13px;
}

.compact-list {
    gap: 6px;
}

.compact-item {
    padding: 10px 12px;
    border-radius: 12px;
}

.metric-card {
    padding: 18px;
}

.metric-value {
    font-size: 28px;
    font-weight: 700;
    line-height: 1;
}

.metric-label {
    margin-top: 8px;
    color: #64748b;
    font-size: 13px;
}

.metric-bar {
    margin-top: 14px;
    height: 8px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.18);
    overflow: hidden;
}

.metric-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
}

.metric-blue .metric-value {
    color: #1677ff;
}

.metric-blue .metric-bar span {
    background: linear-gradient(90deg, #1677ff, #69b1ff);
}

.metric-green .metric-value {
    color: #16a34a;
}

.metric-green .metric-bar span {
    background: linear-gradient(90deg, #16a34a, #86efac);
}

.metric-gold .metric-value {
    color: #d97706;
}

.metric-gold .metric-bar span {
    background: linear-gradient(90deg, #f59e0b, #fcd34d);
}

.metric-cyan .metric-value {
    color: #0891b2;
}

.metric-cyan .metric-bar span {
    background: linear-gradient(90deg, #06b6d4, #67e8f9);
}

.info-placeholder {
    padding: 24px 20px;
    border-radius: 18px;
    background: rgba(148, 163, 184, 0.08);
    color: #64748b;
    line-height: 1.7;
}

@media (max-width: 960px) {
    .page-intro {
        flex-direction: column;
        align-items: flex-start;
    }

    .two-col,
    .three-col,
    .field-span-2 {
        grid-template-columns: 1fr;
        grid-column: span 1;
    }

    .bt-dialog-shell {
        width: calc(100vw - 20px);
    }
}