:root {
    --bg: #eeeeee;
    --panel: #ffffff;
    --panel-soft: #f6f9fc;
    --accent: #a8cce9;
    --accent-soft: #dcecf8;
    --primary: #0070be;
    --primary-dark: #005b9b;
    --text: #143147;
    --muted: #5f7382;
    --border: #d6e1ea;
    --shadow: 0 10px 26px rgba(0, 56, 98, 0.08);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(180deg, var(--bg) 0%, #f7f7f7 100%);
    color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { padding: 1.25rem; max-width: 1480px; margin: 0 auto; }
.topbar, .nav, .card, .auth-card, .alert { border-radius: 14px; }
.topbar {
    margin: 1rem auto 0;
    max-width: 1480px;
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
}
.topbar h1 { margin: 0; font-size: 1.45rem; }
.topbar .muted { color: #d8edff; }
.brand-block {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}
.brand-logo {
    width: auto;
    height: 54px;
    max-width: 180px;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    padding: 0.35rem;
}
.topbar-actions { display: flex; align-items: center; gap: 1rem; }
.nav {
    max-width: 1480px;
    margin: 0.75rem auto 0;
    padding: 0.7rem 1rem;
    background: rgba(255, 255, 255, 0.82);
    display: flex;
    gap: 1rem;
    backdrop-filter: blur(6px);
}
.page-header, .table-toolbar, .stats, .inline-pair, .grid-two, .template-columns, .settings-grid, .compact-grid {
    display: grid;
    gap: 1rem;
}
.page-header { grid-template-columns: 1fr auto; align-items: start; margin-bottom: 1rem; }
.stats { grid-template-columns: repeat(3, auto); align-items: center; }
.grid-two, .settings-grid, .compact-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.template-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.full-width { width: 100%; }
.card, .auth-card {
    background: var(--panel);
    padding: 1rem;
    box-shadow: var(--shadow);
}
.compact-card { padding: 0.9rem 1rem; }
.builder-stack { margin: 1rem 0; }
.auth-card { max-width: 420px; margin: 10vh auto; }
.stack { display: grid; gap: 0.8rem; }
.compact { margin-top: 0.75rem; }
.muted { color: var(--muted); }
label { display: grid; gap: 0.35rem; }
input, select, textarea, button { font: inherit; }
input, select, textarea {
    width: 100%;
    padding: 0.62rem 0.72rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
}
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.68rem 1rem;
    border-radius: 10px;
    border: 0;
    cursor: pointer;
    text-decoration: none;
}
.button.primary { background: var(--primary); color: #fff; }
.button.primary:hover { background: var(--primary-dark); }
.button.secondary { background: var(--accent-soft); color: var(--text); }
.button.tiny { padding: 0.32rem 0.58rem; font-size: 0.82rem; }
.alert { padding: 0.85rem 1rem; margin-bottom: 1rem; }
.alert-success { background: #dff0ff; color: #12466b; }
.alert-error { background: #fde4e4; color: #7a2424; }
.logo-preview {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    padding: 0.75rem;
    border-radius: 12px;
    background: var(--primary);
}
.logo-preview img {
    max-width: 220px;
    max-height: 90px;
    object-fit: contain;
}
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td {
    text-align: left;
    padding: 0.58rem 0.65rem;
    border-bottom: 1px solid #edf2f6;
    vertical-align: middle;
}
th {
    position: sticky;
    top: 0;
    background: #f3f8fc;
    white-space: nowrap;
}
td {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 240px;
    height: 38px;
}
.sortable-header { cursor: pointer; }
.column-list, .simple-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 0.55rem;
    flex-wrap: wrap;
}
.simple-list { display: grid; }
.column-pane {
    background: var(--panel-soft);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.8rem;
}
.available-pane { background: #f9fbfd; }
.selected-pane { background: #eef7ff; }
.column-list li, .simple-list li, .inline-pair {
    padding: 0.55rem 0.65rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
}
.column-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    min-height: 38px;
    flex: 0 1 auto;
}
.sortable-list li { cursor: move; }
.inline-pair {
    grid-template-columns: 1fr 160px;
    align-items: center;
}
.table-toolbar { grid-template-columns: 1fr auto; align-items: center; margin-bottom: 0.75rem; }
.table-toolbar-actions { display: flex; gap: 0.7rem; align-items: center; flex-wrap: wrap; }
.section-heading h3, .page-header h2, .table-toolbar h3 { margin: 0; }
.section-heading.compact { margin-bottom: 0.5rem; }
.filters-topbar {
    display: flex;
    gap: 0.75rem;
    align-items: end;
    flex-wrap: wrap;
}
.filter-chip {
    min-width: 150px;
    position: relative;
}
.filter-chip summary, .templates-panel summary {
    list-style: none;
    cursor: pointer;
}
.filter-chip summary {
    padding: 0.62rem 0.72rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
}
.filter-chip[open] summary {
    background: var(--accent-soft);
    border-color: var(--accent);
}
.filter-menu {
    position: absolute;
    z-index: 20;
    top: calc(100% + 0.4rem);
    left: 0;
    min-width: 220px;
    max-height: 240px;
    overflow: auto;
    padding: 0.65rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
}
.checkbox-line {
    display: flex;
    gap: 0.55rem;
    align-items: center;
}
.checkbox-line input {
    width: auto;
    margin: 0;
}
.filter-inline {
    min-width: 130px;
}
.search-filter {
    min-width: min(300px, 100%);
    flex: 1 1 240px;
}
.templates-panel > summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.35rem 0;
}
.templates-panel-body {
    display: grid;
    gap: 1rem;
    padding-top: 0.65rem;
}
.inline-form {
    margin-top: 0.45rem;
    display: flex;
    gap: 0.45rem;
    flex-wrap: wrap;
}
.export-toolbar {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}
.radio-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--panel-soft);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.45rem 0.8rem;
}
.radio-line input {
    width: auto;
    margin: 0;
}
.user-row-cell {
    padding: 0;
}
.inline-edit-form {
    padding: 0.45rem;
}
.inline-edit-grid {
    display: grid;
    grid-template-columns: 1.2fr 1.4fr 0.9fr 0.9fr 1fr auto;
    gap: 0.65rem;
    align-items: center;
}
.inline-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    align-items: center;
    flex-wrap: wrap;
}
.inline-edit-grid input:disabled,
.inline-edit-grid select:disabled {
    background: #f4f7fa;
    color: var(--muted);
}
.product-table-wrap {
    max-height: 62vh;
}
@media (max-width: 900px) {
    .page-header, .stats, .table-toolbar, .template-columns { grid-template-columns: 1fr; }
    .filters-topbar { align-items: stretch; }
    .inline-edit-grid { grid-template-columns: 1fr; }
    .inline-actions { justify-content: flex-start; }
}