:root {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --border-color: #30363d;
    --header-bg: #161b22;
    --accent-color: #58a6ff;
    --success-color: #238636;
    --warning-color: #d29922;
    --danger-color: #f85149;
    --table-stripe: #161b22;
    --hover-bg: #21262d;
    --bg-card: #161b22;
    --text-secondary: #8b949e;
    --input-bg: #0d1117;
    --btn-primary-bg: #238636;
    --btn-primary-text: #ffffff;
    --btn-primary-border: rgba(240, 246, 252, 0.1);
    --order-focus-bg: rgba(56, 139, 253, 0.16);
    --order-focus-border: rgba(88, 166, 255, 0.55);
    --supplier-sku-color: #58a6ff;
    --supplier-prod-color: #7d8590;
    --card-bg-mobile: #161b22;
    --catalog-sku-chip-bg: rgba(88, 166, 255, 0.16);
    --catalog-sku-chip-border: rgba(88, 166, 255, 0.45);
    --catalog-sku-chip-text: #dbeafe;
    --active-filter-bg: rgba(236, 72, 153, 0.16);
    --active-filter-border: rgba(244, 114, 182, 0.85);
    --active-filter-shadow: rgba(244, 114, 182, 0.22);
    --search-active-filter-bg: rgba(236, 72, 153, 0.16);
    --search-active-filter-border: rgba(244, 114, 182, 0.85);
    --search-active-filter-shadow: rgba(244, 114, 182, 0.22);
    --search-active-filter-dot: #f9a8d4;
    --structured-active-filter-bg: rgba(251, 113, 133, 0.15);
    --structured-active-filter-border: rgba(251, 113, 133, 0.75);
    --structured-active-filter-shadow: rgba(251, 113, 133, 0.2);
    --structured-active-filter-dot: #fb7185;
    --clear-active-bg: rgba(248, 81, 73, 0.14);
    --clear-active-border: rgba(248, 81, 73, 0.7);
    --clear-active-shadow: rgba(248, 81, 73, 0.18);
}

[data-theme="light"] {
    --bg-color: #ffffff;
    --text-color: #24292f;
    --border-color: #d0d7de;
    --header-bg: #f6f8fa;
    --accent-color: #0969da;
    --success-color: #1a7f37;
    --warning-color: #9a6700;
    --danger-color: #cf222e;
    --table-stripe: #f6f8fa;
    --hover-bg: #f3f4f6;
    --bg-card: #ffffff;
    --text-secondary: #57606a;
    --input-bg: #ffffff;
    --btn-primary-bg: #1f883d;
    --btn-primary-text: #ffffff;
    --btn-primary-border: rgba(31, 35, 40, 0.15);
    --order-focus-bg: rgba(9, 105, 218, 0.08);
    --order-focus-border: rgba(9, 105, 218, 0.35);
    --supplier-sku-color: #0969da;
    --supplier-prod-color: #57606a;
    --card-bg-mobile: #ffffff;
    --catalog-sku-chip-bg: rgba(9, 105, 218, 0.1);
    --catalog-sku-chip-border: rgba(9, 105, 218, 0.28);
    --catalog-sku-chip-text: #084b9a;
    --active-filter-bg: rgba(236, 72, 153, 0.12);
    --active-filter-border: rgba(219, 39, 119, 0.72);
    --active-filter-shadow: rgba(219, 39, 119, 0.16);
    --search-active-filter-bg: rgba(236, 72, 153, 0.12);
    --search-active-filter-border: rgba(219, 39, 119, 0.72);
    --search-active-filter-shadow: rgba(219, 39, 119, 0.16);
    --search-active-filter-dot: #db2777;
    --structured-active-filter-bg: rgba(251, 113, 133, 0.1);
    --structured-active-filter-border: rgba(225, 29, 72, 0.45);
    --structured-active-filter-shadow: rgba(225, 29, 72, 0.14);
    --structured-active-filter-dot: #e11d48;
    --clear-active-bg: rgba(248, 81, 73, 0.08);
    --clear-active-border: rgba(207, 34, 46, 0.45);
    --clear-active-shadow: rgba(207, 34, 46, 0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header & Nav */
header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--text-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.brand:hover {
    text-decoration: none;
    color: var(--text-color);
}

.brand-logo {
    width: 24px;
    height: 24px;
    flex: 0 0 24px;
    border-radius: 6px;
}

.brand-text {
    font-weight: 800;
    letter-spacing: 0.2px;
    color: #38bdf8;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
    .brand-text {
        background: linear-gradient(135deg, #0f766e 0%, #1d4ed8 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }
}

nav a {
    margin-left: 20px;
    color: var(--text-color);
    opacity: 0.8;
}

nav a:hover,
nav a.active {
    opacity: 1;
    color: var(--accent-color);
}

.header-order-widget {
    margin-left: 10px;
    padding: 4px 8px;
    border: 1px solid var(--order-focus-border);
    border-radius: 8px;
    background: var(--order-focus-bg);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.header-order-link {
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.header-order-link:hover {
    text-decoration: underline;
}

.header-order-link.is-disabled {
    color: var(--text-secondary);
    opacity: 0.85;
}

.header-order-hash {
    opacity: 0.7;
    font-weight: 700;
}

.header-order-input {
    width: 140px;
    padding: 4px 8px;
    font-size: 13px;
}

/* Forms & Toolbar */
.toolbar {
    background-color: var(--header-bg);
    padding: 15px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

input,
select,
button {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
}

button {
    cursor: pointer;
    background-color: var(--hover-bg);
}

button:hover {
    border-color: var(--text-secondary);
}

button.primary {
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border-color: var(--btn-primary-border);
}

.catalog-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px 16px;
    align-items: start;
}

.catalog-toolbar-left {
    display: grid;
    grid-template-columns: minmax(240px, 2fr) minmax(170px, 1fr) minmax(170px, 1fr) minmax(170px, 1fr);
    gap: 10px;
    min-width: 0;
}

.catalog-toolbar-left input {
    width: 100%;
    box-sizing: border-box;
}

.catalog-search-input,
.catalog-filter-input {
    transition: background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background-image 0.18s ease;
    background-repeat: no-repeat;
    background-position: calc(100% - 12px) 50%;
    background-size: 9px 9px;
}

.catalog-search-field.is-active {
    background-color: var(--search-active-filter-bg);
    border-color: var(--search-active-filter-border);
    box-shadow: 0 0 0 3px var(--search-active-filter-shadow);
    background-image: radial-gradient(circle, var(--search-active-filter-dot) 0 58%, transparent 62%);
    padding-right: 32px;
}

.catalog-filter-structured.is-active,
.catalog-filter-text.is-active {
    background-color: var(--structured-active-filter-bg);
    border-color: var(--structured-active-filter-border);
    box-shadow: 0 0 0 3px var(--structured-active-filter-shadow);
    background-image: radial-gradient(circle, var(--structured-active-filter-dot) 0 58%, transparent 62%);
    padding-right: 32px;
}

.catalog-toolbar-right {
    display: flex;
    flex-direction: row;
    gap: 8px;
    align-items: flex-end;
}

.catalog-toolbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.catalog-limit-select {
    width: 86px;
}

.btn-clear-filters {
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    background: transparent;
}

.btn-clear-filters.is-active {
    background: var(--clear-active-bg);
    border-color: var(--clear-active-border);
    box-shadow: 0 0 0 3px var(--clear-active-shadow);
}

.catalog-inline-status {
    font-size: 0.82em;
    min-width: 120px;
    opacity: 0.85;
    text-align: right;
}

@media screen and (max-width: 1280px) {
    .catalog-toolbar {
        grid-template-columns: 1fr;
    }

    .catalog-toolbar-left {
        grid-template-columns: repeat(2, minmax(180px, 1fr));
    }

    .catalog-search-input {
        grid-column: 1 / -1;
    }

    .catalog-toolbar-right {
        align-items: flex-start;
    }

    .catalog-toolbar-actions {
        justify-content: flex-start;
        flex-wrap: wrap;
    }
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th,
td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

/* Generic zebra striping for simple tables */
tbody tr:nth-child(even) {
    background-color: var(--table-stripe);
}

/* Specialized zebra striping for product list with hidden detail rows */
tbody tr.product-row:nth-child(4n-1),
tbody tr.details-row:nth-child(4n) {
    background-color: var(--table-stripe) !important;
}

th {
    background-color: var(--header-bg);
    font-weight: 600;
}

tr:hover td {
    background-color: var(--hover-bg);
}

.mono {
    font-family: ui-monospace, SFMono-Regular, monospace;
}

/* Status Bar */
.status-bar .stats {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.status-bar .actions {
    margin-left: auto;
    display: flex;
    gap: 10px;
    align-items: center;
}

.btn-reload,
.btn-logs {
    padding: 4px 12px;
    font-size: 11px;
    font-weight: bold;
    border-radius: 4px;
    white-space: nowrap;
}

.btn-reload {
    background: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.btn-logs {
    background: var(--success-color);
    color: #ffffff;
    border: none;
}

.status-indicator {
    font-size: 11px;
    white-space: nowrap;
}

.status-text {
    font-size: 11px;
    min-width: 80px;
}

/* Specifics */
.price-tag {
    font-weight: bold;
    color: var(--text-color);
}

.qty-tag {
    color: #8b949e;
    font-size: 0.9em;
}

.supplier-block {
    font-size: 13px;
    margin-bottom: 2px;
}

.supplier-name {
    color: var(--text-secondary);
}

.supplier-sku {
    color: var(--supplier-sku-color);
    opacity: 0.8;
}

.supplier-prod-name {
    font-style: italic;
    color: var(--supplier-prod-color);
}

.catalog-item-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}

.catalog-item-sku-row {
    display: flex;
    align-items: center;
}

.catalog-sku-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border: 1px solid var(--catalog-sku-chip-border);
    border-radius: 999px;
    background: var(--catalog-sku-chip-bg);
    color: var(--catalog-sku-chip-text);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.catalog-sku-link {
    color: inherit;
    text-decoration: none;
}

.catalog-sku-link:hover {
    text-decoration: underline;
}

.catalog-item-dates {
    font-size: 0.85em;
    color: var(--text-secondary);
}

.delta-pos {
    color: var(--success-color);
}

.delta-neg {
    color: var(--danger-color);
}

/* History Chart */
.chart-container {
    background: var(--header-bg);
    padding: 15px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    margin-top: 20px;
}

/* Responsive Mobile Styles */
@media screen and (max-width: 992px) {
    .container {
        padding: 10px;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 1rem 15px;
    }

    .brand {
        font-size: 1.1rem;
    }

    nav {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    nav a {
        margin-left: 0 !important;
        margin-right: 15px;
        font-size: 13px;
    }

    .header-order-widget {
        margin-left: 0;
        margin-top: 8px;
        width: 100%;
        justify-content: flex-start;
    }

    .header-order-input {
        width: 100%;
    }

    .status-bar .stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px !important;
    }

    .status-bar .actions {
        width: 100%;
        margin-left: 0 !important;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 8px;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
    }

    .toolbar input,
    .toolbar select,
    .toolbar button {
        width: 100%;
        padding: 12px;
        font-size: 16px;
        /* Prevent zoom on iOS */
    }

    .catalog-toolbar-left {
        grid-template-columns: 1fr;
    }

    .catalog-toolbar-actions {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
    }

    .catalog-limit-select {
        width: 86px;
    }

    .catalog-inline-status {
        width: 100%;
        min-width: 0;
        text-align: left;
    }

    /* Transform Table to Cards */
    table,
    thead,
    tbody,
    th,
    td,
    tr {
        display: block;
    }

    thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    tr.product-row {
        margin-bottom: 15px;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        padding: 12px;
        background: var(--card-bg-mobile) !important;
    }

    td {
        border: none;
        padding: 6px 0;
        position: relative;
        text-align: left !important;
    }

    td:before {
        content: attr(data-label);
        font-weight: bold;
        display: block;
        font-size: 0.75em;
        color: var(--accent-color);
        margin-bottom: 2px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    td[data-label=""]:before {
        display: none;
    }

    .details-row td {
        padding: 10px 5px !important;
        background: rgba(0, 0, 0, 0.2);
        border-radius: 4px;
    }

    .suppliers-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        padding: 8px 0;
    }

    .suppliers-table td:before {
        display: inline-block;
        width: auto;
        margin-bottom: 0;
        margin-right: 10px;
    }

    /* Adjust specific cells */
    td div {
        display: block;
    }
}

/* Pagination controls */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 30px 0;
    font-size: 14px;
}

.pagination-btn {
    background: var(--header-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none !important;
}

.pagination-btn:hover:not(.disabled) {
    background: var(--hover-bg);
    border-color: var(--accent-color);
}

.pagination-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    cursor: default;
}

.pagination-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.total-summary {
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--text-secondary);
}

.total-summary b {
    color: var(--text-color);
}