/* Стиль, близкий к штатному разделу «Товары» в Битрикс24 CRM */
:root {
    --b24-bg: #eef2f4;
    --b24-white: #fff;
    --b24-border: #c6cdd3;
    --b24-border-light: #e2e5e8;
    --b24-text: #333;
    --b24-muted: #828b95;
    --b24-link: #2067b0;
    --b24-primary: #3bc8f5;
    --b24-primary-hover: #2dbded;
    --b24-success: #bbed21;
    --b24-success-text: #535c69;
    --b24-danger: #ff5752;
    --b24-th-bg: #f1f4f6;
    --font: "Helvetica Neue", Helvetica, Arial, "Open Sans", sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 13px;
    color: var(--b24-text);
    background: var(--b24-bg);
    line-height: 1.4;
}

.hidden { display: none !important; }

.loading-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: 40px;
    gap: 12px;
    color: var(--b24-muted);
}

.error-box {
    margin: 16px;
    padding: 16px;
    background: #fff0f0;
    border: 1px solid var(--b24-danger);
    border-radius: 4px;
    color: #c00;
    font-size: 13px;
    white-space: pre-line;
}

.app {
    padding: 0;
    min-height: 200px;
}

/* Toolbar как в CRM */
.crm-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--b24-white);
    border-bottom: 1px solid var(--b24-border-light);
    flex-wrap: wrap;
}

.toolbar-spacer { flex: 1; }

.ui-btn {
    display: inline-flex;
    align-items: center;
    padding: 0 14px;
    height: 32px;
    border: 1px solid var(--b24-border);
    border-radius: 2px;
    background: linear-gradient(180deg, #fff 0%, #f5f7f8 100%);
    font: inherit;
    font-size: 12px;
    color: var(--b24-text);
    cursor: pointer;
    white-space: nowrap;
}

.ui-btn:hover { border-color: #a8adb4; }

.ui-btn-primary {
    background: linear-gradient(180deg, #4dd4ff 0%, var(--b24-primary) 100%);
    border-color: #2eb8e0;
    color: #fff;
    font-weight: 600;
}

.ui-btn-primary:hover { background: var(--b24-primary-hover); }

.ui-btn-success {
    background: linear-gradient(180deg, #d4f05a 0%, var(--b24-success) 100%);
    border-color: #a8d020;
    color: var(--b24-success-text);
    font-weight: 600;
}

.ui-btn-success:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.ui-btn-link {
    border: none;
    background: none;
    color: var(--b24-link);
    text-decoration: underline;
    padding: 0 8px;
}

/* Таблица товаров */
.crm-table-wrap {
    background: var(--b24-white);
    margin: 0;
    overflow-x: auto;
}

.crm-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.crm-table th {
    background: var(--b24-th-bg);
    border-bottom: 1px solid var(--b24-border-light);
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    color: var(--b24-muted);
    font-size: 12px;
    white-space: nowrap;
}

.crm-table td {
    border-bottom: 1px solid var(--b24-border-light);
    padding: 6px 8px;
    vertical-align: middle;
}

.crm-table tbody tr:hover { background: #f8f9fa; }

.crm-table tfoot td {
    background: var(--b24-th-bg);
    font-weight: 700;
    border-top: 2px solid var(--b24-border-light);
    padding: 10px;
}

.col-num { width: 36px; text-align: center; color: var(--b24-muted); }
.col-price, .col-qty, .col-discount { width: 90px; }
.col-unit { width: 50px; }
.col-sum { width: 100px; text-align: right; font-weight: 600; }
.col-del { width: 32px; text-align: center; }

.total-label { text-align: right; color: var(--b24-muted); }
.total-value { text-align: right; font-size: 15px; }

.empty-row td {
    text-align: center;
    color: var(--b24-muted);
    padding: 32px !important;
}

.crm-table input[type="text"],
.crm-table input[type="number"] {
    width: 100%;
    padding: 5px 8px;
    border: 1px solid var(--b24-border-light);
    border-radius: 2px;
    font: inherit;
    font-size: 13px;
    background: #fff;
}

.crm-table input:focus {
    border-color: var(--b24-primary);
    outline: none;
}

.crm-table input[type="number"] { text-align: right; }

.row-section {
    display: block;
    font-size: 11px;
    color: var(--b24-link);
    margin-top: 2px;
}

.btn-del {
    border: none;
    background: none;
    color: var(--b24-muted);
    font-size: 18px;
    cursor: pointer;
    line-height: 1;
    padding: 2px 6px;
}

.btn-del:hover { color: var(--b24-danger); }

.crm-table tr.row-invalid td.col-name input {
    border-color: var(--b24-danger);
    background: #fff8f8;
}

.crm-table tr.row-invalid td.col-name input::placeholder {
    color: var(--b24-danger);
}

/* Модальное окно каталога — на весь экран вкладки */
body.catalog-open {
    overflow: hidden;
}

#modal-catalog.modal-expanded {
    padding: 0;
    align-items: stretch;
    justify-content: stretch;
}

#modal-catalog.modal-expanded .modal-panel {
    width: 100% !important;
    height: 100% !important;
    max-width: none;
    border-radius: 0;
    margin: 0;
    box-shadow: none;
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 20px 16px;
    overflow-y: auto;
}

.modal-panel {
    background: var(--b24-white);
    border-radius: 4px;
    width: min(960px, 96vw);
    max-width: 100%;
    height: 680px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0,0,0,.2);
    margin: 0 auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--b24-border-light);
}

.modal-header h3 { margin: 0; font-size: 15px; }

.modal-close {
    border: none;
    background: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--b24-muted);
    line-height: 1;
}

.modal-body { overflow: hidden; flex: 1; }

.catalog-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.catalog-sidebar {
    border-right: 1px solid var(--b24-border-light);
    overflow-y: auto;
    padding: 8px 0;
}

.catalog-sidebar-title {
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    color: var(--b24-muted);
    text-transform: uppercase;
}

.catalog-main {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.catalog-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 10px 0;
    flex-wrap: wrap;
}

.catalog-select-all {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--b24-text);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
}

.catalog-toolbar .search-input {
    flex: 1;
    min-width: 160px;
    margin: 0;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border-top: 1px solid var(--b24-border-light);
    background: #fafbfc;
}

.modal-footer-actions {
    display: flex;
    gap: 8px;
}

#catalog-selected-count {
    font-size: 13px;
    color: var(--b24-muted);
}

.search-input {
    margin: 10px;
    padding: 7px 10px;
    border: 1px solid var(--b24-border);
    border-radius: 2px;
    font: inherit;
}

.catalog-list {
    overflow-y: auto;
    flex: 1;
    padding: 0 10px 10px;
}

.catalog-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--b24-border-light);
    cursor: pointer;
    gap: 12px;
    font-size: 14px;
    margin: 0;
}

.catalog-item:hover { background: #eef9fd; }

.catalog-item .catalog-check {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.catalog-item-name {
    font-weight: 500;
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.catalog-in-deal {
    font-size: 11px;
    font-weight: 400;
    color: var(--b24-muted);
    background: #eef2f4;
    padding: 1px 6px;
    border-radius: 2px;
}
.catalog-item-price {
    color: var(--b24-text);
    font-weight: 600;
    white-space: nowrap;
    min-width: 80px;
    text-align: right;
}

.tree-item {
    display: block;
    width: 100%;
    padding: 6px 12px;
    border: none;
    background: none;
    text-align: left;
    font: inherit;
    cursor: pointer;
    color: var(--b24-text);
}

.tree-item:hover { background: #eef9fd; }
.tree-item.active { background: #d9f4fc; font-weight: 600; }
.tree-item[data-level="1"] { padding-left: 22px; }
.tree-item[data-level="2"] { padding-left: 34px; }

.modal-content {
    background: var(--b24-white);
    padding: 20px;
    border-radius: 4px;
    width: 400px;
    max-width: 100%;
}

.modal-content h3 { margin: 0 0 16px; }
.modal-content label { display: block; margin-bottom: 12px; font-size: 12px; color: var(--b24-muted); }
.modal-content input, .modal-content select {
    display: block; width: 100%; margin-top: 4px;
    padding: 7px 10px; border: 1px solid var(--b24-border); border-radius: 2px; font: inherit;
}

.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

.placeholder { color: var(--b24-muted); text-align: center; padding: 24px; }

.toast {
    position: fixed; bottom: 16px; right: 16px;
    padding: 10px 18px; border-radius: 4px;
    background: #333; color: #fff; z-index: 2000;
    box-shadow: 0 4px 12px rgba(0,0,0,.2);
}
.toast.error { background: var(--b24-danger); }
.toast.success { background: var(--b24-success); color: #333; }

.overlay {
    position: fixed; inset: 0;
    background: rgba(255,255,255,.7);
    display: flex; align-items: center; justify-content: center;
    z-index: 1500;
}

.spinner {
    width: 28px; height: 28px;
    border: 3px solid var(--b24-border-light);
    border-top-color: var(--b24-primary);
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }