body {
    margin: 0;
    color: var(--text-color);
    background: var(--page-background);
    font-family: Arial, Helvetica, sans-serif;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

.brand {
    color: var(--text-color);
    font-weight: 700;
    text-decoration: none;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

nav {
    display: flex;
    gap: 1rem;
}

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

nav a.active {
    color: var(--accent-color);
    font-weight: 700;
}

.page {
    max-width: 1120px;
    margin: 0 auto;
    padding: 2rem;
}

.hero {
    max-width: 680px;
    padding: 5rem 0;
}

.eyebrow,
.status {
    color: var(--accent-color);
    font-weight: 700;
}

.button,
button {
    display: inline-block;
    border: 0;
    border-radius: 6px;
    padding: 0.7rem 1rem;
    color: var(--button-text);
    background: var(--accent-color);
    text-decoration: none;
    cursor: pointer;
}

.secondary-button {
    border: 1px solid var(--border-color);
    color: var(--text-color);
    background: var(--muted-surface-color);
}

.icon-button {
    min-width: 2.4rem;
    border: 1px solid var(--border-color);
    color: var(--danger-color);
    background: var(--muted-surface-color);
    font-size: 1rem;
}

.theme-toggle {
    border: 1px solid var(--border-color);
    color: var(--text-color);
    background: var(--muted-surface-color);
}

.task-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 1.5rem;
    align-items: start;
}

.task-list {
    display: grid;
    gap: 1rem;
}

.task-card,
.task-form {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    background: var(--surface-color);
}

.task-card div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.task-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1rem;
}

.task-card h3 {
    margin-bottom: 0.25rem;
}

.task-card .product-selectors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 0.75rem;
    justify-content: initial;
}

.task-card .plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 0.75rem;
    align-items: start;
}

.task-card .plan-card {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem;
    outline: none;
}

.plan-card:focus-visible {
    box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 25%, transparent);
}

.plan-card p {
    margin: 0.35rem 0;
}

.task-card .plan-items-popover {
    position: absolute;
    z-index: 10;
    top: calc(100% + 0.35rem);
    left: 0;
    display: block;
    min-width: min(360px, 80vw);
    padding: 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--surface-color);
    box-shadow: 0 12px 30px rgb(0 0 0 / 18%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.25rem);
    transition: opacity 120ms ease, transform 120ms ease, visibility 120ms;
}

.plan-items-popover ul {
    margin-bottom: 0;
    padding-left: 1.2rem;
}

.plan-card:hover .plan-items-popover,
.plan-card:focus .plan-items-popover,
.plan-card:focus-within .plan-items-popover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.task-card .correlation-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.correlation-comparison article {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem;
}

.correlation-comparison p {
    margin: 0.35rem 0 0;
}

.correlation-verdict {
    padding: 0.75rem;
    border-left: 4px solid currentColor;
    background: var(--muted-surface-color);
}

.task-card .correlation-components {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.5rem;
}

.task-card .correlation-components div {
    display: flex;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.recipe-optimizer > label {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.optimizer-tabs {
    display: flex;
    gap: 0.4rem;
    margin: 1rem 0 0;
    border-bottom: 1px solid var(--border-color);
}

.optimizer-tabs button {
    border: 1px solid transparent;
    border-bottom: 0;
    border-radius: 8px 8px 0 0;
    padding: 0.65rem 1rem;
}

.optimizer-tabs button[aria-selected="true"] {
    border-color: var(--border-color);
    color: var(--text-color);
    background: var(--surface-color);
}

.optimizer-tab-panel > .task-card {
    margin-top: 0;
    border-top-left-radius: 0;
}

.saved-recipes > label,
.family-selection label,
.shopping-cart label {
    display: grid;
    gap: 0.35rem;
    font-weight: 700;
}

.saved-recipes > label {
    margin-bottom: 0.75rem;
}

.catalog-tile button,
.shopping-cart-title button,
.shopping-cart-items button,
.saved-recipe-actions button {
    width: auto;
}

.tile-filter {
    max-width: 520px;
    margin-bottom: 1rem;
}

.task-card .catalog-tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
}

.catalog-tile {
    display: grid;
    gap: 0.55rem;
    align-content: start;
    padding: 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--surface-color);
}

.catalog-tile code {
    font-size: 0.78rem;
}

.catalog-tile button:first-of-type {
    margin-top: auto;
}

.tile-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.shopping-cart-title,
.saved-recipe-list article > div,
.saved-recipe-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.shopping-cart-title h2 {
    margin-bottom: 0;
}

.task-card .shopping-cart-items,
.task-card .saved-recipe-list,
.task-card .saved-recipe-matches {
    display: grid;
    gap: 0.5rem;
}

.shopping-cart-items > article,
.saved-recipe-list > article {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 110px auto;
    gap: 0.5rem;
    align-items: end;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.recipe-cart-item {
    border-left: 4px solid var(--accent-color, #6b63d9) !important;
}

.saved-recipe-list > article {
    grid-template-columns: 1fr;
}

.shopping-cart-items article > div {
    display: grid;
    gap: 0.25rem;
    min-width: 0;
}

.shopping-cart-items code {
    font-size: 0.8rem;
    overflow-wrap: anywhere;
}

.task-card .cart-result-summary,
.task-card .developer-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}

.cart-result-summary > article,
.developer-summary > span {
    display: grid;
    gap: 0.3rem;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.task-card .cart-plan-items {
    display: grid;
    gap: 0.5rem;
}

.cart-plan-items > article {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto auto;
    gap: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
}

.cart-optimization-controls {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}

.customer-card-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.customer-card-selector label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.65rem;
    border: 1px solid var(--border-color);
    border-radius: 999px;
}

.customer-card-selector input {
    width: auto;
}

.cart-optimization-actions,
.optimizer-dialog-actions,
.optimizer-dialog-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.cart-optimization-actions button,
.optimizer-dialog button,
.result-tabs button {
    width: auto;
}

.result-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 1rem 0;
}

.result-tabs button[aria-selected="true"] {
    outline: 2px solid var(--accent-color, #6b63d9);
    outline-offset: 1px;
}

.result-tab-panel {
    min-height: 10rem;
}

.result-route {
    overflow-wrap: anywhere;
    line-height: 1.6;
}

.optimizer-dialog-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.55);
}

.optimizer-dialog {
    width: min(560px, 100%);
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--surface-color);
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
}

.optimizer-dialog-title h2 {
    margin-bottom: 0;
}

.optimization-weight-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}

.optimization-weight-grid label {
    display: grid;
    gap: 0.3rem;
    font-weight: 700;
}

.developer-catalog > label {
    display: grid;
    gap: 0.35rem;
    max-width: 520px;
    margin-bottom: 1rem;
    font-weight: 700;
}

.developer-catalog details {
    margin: 0.65rem 0;
}

.developer-table-wrap {
    overflow-x: auto;
    margin-top: 0.5rem;
}

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

.developer-table-wrap th,
.developer-table-wrap td {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
}

.task-card .recipe-plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.75rem;
    align-items: start;
}

.recipe-plan-grid > article {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem;
}

.task-card .recipe-items {
    display: block;
}

.recipe-items details {
    border-top: 1px solid var(--border-color);
    padding: 0.65rem 0;
}

.recipe-items summary {
    cursor: pointer;
    font-weight: 700;
}

.task-card .card-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.5rem;
}

@media (max-width: 700px) {
    .optimizer-tab-panel,
    .shopping-cart,
    .shopping-cart-items,
    .shopping-cart-items > article {
        min-width: 0;
        max-width: 100%;
    }

    .family-add-row,
    .shopping-cart-items > article,
    .saved-recipe-matches > div,
    .cart-plan-items > article,
    .optimization-weight-grid {
        grid-template-columns: 1fr;
    }

    .optimizer-tabs {
        flex-wrap: wrap;
    }

    .optimizer-tabs button,
    .result-tabs button {
        flex: 1 1 calc(50% - 0.4rem);
        min-width: 0;
        padding-inline: 0.45rem;
    }

    .shopping-cart-title,
    .cart-optimization-actions,
    .optimizer-dialog-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .shopping-cart-title button,
    .shopping-cart-items button,
    .cart-optimization-actions button,
    .optimizer-dialog-actions button {
        width: 100%;
    }

    .customer-card-selector {
        display: grid;
        grid-template-columns: 1fr;
    }

    .customer-card-selector label {
        min-width: 0;
        border-radius: 8px;
        overflow-wrap: anywhere;
    }
}

.task-card .card-comparison div {
    display: grid;
    gap: 0.2rem;
    padding: 0.65rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.product-selectors label {
    display: grid;
    gap: 0.35rem;
    font-weight: 700;
}

.task-form {
    display: grid;
    gap: 0.85rem;
}

.task-form label {
    display: grid;
    gap: 0.35rem;
    font-weight: 700;
}

input,
select,
textarea {
    box-sizing: border-box;
    width: 100%;
    border: 1px solid var(--input-border-color);
    border-radius: 6px;
    padding: 0.55rem;
    color: var(--text-color);
    background: var(--input-background);
    font: inherit;
}

.status-select {
    width: auto;
    min-width: 9rem;
}

textarea {
    min-height: 10rem;
    resize: vertical;
}

@media (max-width: 760px) {
    .topbar,
    .topbar-actions,
    .task-layout {
        display: block;
    }

    nav {
        margin-top: 0.75rem;
    }

    .task-form {
        margin-top: 1.5rem;
    }
}