/**
 * Afitt Bistro — Sültestál bundle builder (Prompt 4).
 *
 * Bundle cards + Wolt-style bottom-sheet builder.
 * Mobile-first; sticky totals/CTA; keyboard + screen-reader friendly;
 * honors prefers-reduced-motion.
 *
 * Depends on tokens.css (design tokens), menu.css (sheet overlay patterns).
 */

/* ---------------- builder bottom sheet ---------------- */

.menu-bundle-overlay {
    position: fixed;
    inset: 0;
    z-index: 220;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    background: var(--color-overlay-backdrop);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.menu-bundle-overlay[hidden] {
    display: none;
}

.menu-bundle-overlay.is-open {
    opacity: 1;
}

.menu-bundle-sheet {
    width: 100%;
    max-width: 640px;
    max-height: 92dvh;
    background: var(--color-bg-white);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: var(--shadow-modal);
    transform: translateY(100%);
    transition: transform var(--transition-base);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.menu-bundle-overlay.is-open .menu-bundle-sheet {
    transform: translateY(0);
}

/* head */
.bundle-builder__head {
    position: relative;
    padding: var(--space-lg) var(--space-lg) var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
}

.bundle-builder__close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
}

.bundle-builder__title {
    margin: 0;
    font-size: 1.3rem;
    padding-right: 2.5rem;
}

.bundle-builder__sub {
    margin: var(--space-xs) 0 0;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.bundle-builder__stepper {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
}

.bundle-builder__stepdot {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: var(--color-bg-cream);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    padding: 0.15rem 0.6rem;
}

.bundle-builder__stepdot.is-current {
    color: var(--color-text-inverse);
    background: var(--color-brand-orange);
    border-color: var(--color-brand-orange);
    font-weight: 700;
}

.bundle-builder__stepdot.is-done::after {
    content: ' ✓';
}

/* body */
.bundle-builder__body {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: var(--space-md) var(--space-lg);
    -webkit-overflow-scrolling: touch;
}

.bundle-builder__copy {
    margin: 0 0 var(--space-md);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.bundle-builder__options {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-sm);
}

@media (min-width: 480px) {
    .bundle-builder__options {
        grid-template-columns: repeat(2, 1fr);
    }
}

.bundle-opt {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
    text-align: left;
    background: var(--color-bg-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.bundle-opt:hover:not(:disabled) {
    border-color: var(--color-brand-orange);
}

.bundle-opt.is-selected {
    border-color: var(--color-brand-orange);
    box-shadow: 0 0 0 2px rgba(244, 122, 31, 0.25);
}

.bundle-opt.is-disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.bundle-opt:focus-visible {
    outline: 3px solid rgba(244, 122, 31, 0.4);
    outline-offset: 2px;
}

.bundle-opt__media {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--color-bg-cream);
}

.bundle-opt__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bundle-opt__body {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.bundle-opt__name {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.2;
}

.bundle-opt__price {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.bundle-opt__state,
.bundle-opt__check {
    flex: 0 0 auto;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-muted);
}

.bundle-opt.is-selected .bundle-opt__check {
    color: var(--color-brand-orange);
}

.bundle-builder__blocked {
    margin: 0;
    padding: var(--space-md);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    background: var(--color-bg-cream);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.bundle-builder__empty {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* summary */
.bundle-summary {
    list-style: none;
    margin: var(--space-lg) 0 0;
    padding: 0;
    border-top: 1px dashed var(--color-border-medium);
}

.bundle-summary__row {
    display: flex;
    gap: var(--space-sm);
    align-items: baseline;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.88rem;
}

.bundle-summary__row--base {
    font-weight: 700;
}

.bundle-summary__row--adj {
    color: var(--color-brand-orange);
    font-weight: 700;
}

.bundle-summary__label {
    flex: 0 0 auto;
    color: var(--color-text-secondary);
}

.bundle-summary__value {
    flex: 1 1 auto;
    text-align: left;
}

.bundle-summary__price {
    flex: 0 0 auto;
    font-variant-numeric: tabular-nums;
}

/* foot (sticky) */
.bundle-builder__foot {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg) calc(var(--space-md) + env(safe-area-inset-bottom));
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-white);
}

.bundle-builder__total {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.bundle-builder__total-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
}

.bundle-builder__total-value {
    font-size: 1.15rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.bundle-builder__actions {
    display: flex;
    gap: var(--space-sm);
    flex: 1 1 auto;
    justify-content: flex-end;
}

.bundle-builder__add {
    min-width: 160px;
}

.bundle-builder__add:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ---------------- drawer bundle line ---------------- */

.menu-cart__item--bundle .menu-cart__item-options {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

@media (max-width: 390px) {
    .bundle-builder__foot {
        flex-direction: column;
        align-items: stretch;
    }

    .bundle-builder__actions {
        justify-content: stretch;
    }

    .bundle-builder__actions .bundle-builder__add {
        flex: 1 1 auto;
    }
}

/* ---------------- reduced motion ---------------- */

@media (prefers-reduced-motion: reduce) {
    .menu-bundle-overlay,
    .menu-bundle-sheet {
        transition: none;
    }

    .bundle-opt {
        transition: none;
    }
}