/* =====================================================================
 * Klosterhedens Planteskole – Kvantum-pris (frontend)
 *
 * Tier-pris-display på single product.
 * Arver design tokens fra single-product.css men definerer fallbacks
 * så komponenten kan stå alene hvis nødvendigt.
 * ===================================================================== */

.klo-kvp-tiers {
    --klo-kvp-green-deep: var(--klo-green-deep, #1f3b2b);
    --klo-kvp-green: var(--klo-green, #2f5d3f);
    --klo-kvp-green-50: var(--klo-green-50, #eaf1ec);
    --klo-kvp-cream: var(--klo-cream, #f7f3ec);
    --klo-kvp-cream-warm: var(--klo-cream-warm, #efe8db);
    --klo-kvp-accent: var(--klo-accent, #c47d34);
    --klo-kvp-line: var(--klo-line, #e3dccd);
    --klo-kvp-ink: var(--klo-ink, #1a201c);
    --klo-kvp-ink-soft: var(--klo-ink-soft, #4a534d);
    --klo-kvp-ink-muted: var(--klo-ink-muted, #7a847d);
    --klo-kvp-radius-sm: var(--klo-radius-sm, 6px);
    --klo-kvp-radius-md: var(--klo-radius-md, 12px);
    --klo-kvp-ease: var(--klo-ease, cubic-bezier(0.23, 1, 0.32, 1));
    --klo-kvp-font-display: var(--klo-font-display, 'Fraunces', Georgia, serif);
    --klo-kvp-font-body: var(--klo-font-body, 'Inter', -apple-system, sans-serif);

    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px dashed var(--klo-kvp-line);
    font-family: var(--klo-kvp-font-body);
}

/* ----- Limits-notice (min/max/interval info) ----- */
.klo-kvp-limits-notice {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    padding: 10px 13px;
    background-color: rgba(47, 93, 63, 0.07);
    border: 1px solid rgba(47, 93, 63, 0.16);
    border-radius: var(--klo-kvp-radius-sm);
    font-size: 12.5px;
    line-height: 1.45;
    color: var(--klo-kvp-ink-soft);
}

.klo-kvp-limits-notice__badge {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background-color: var(--klo-kvp-green-deep);
    color: #fff;
    box-shadow: 0 2px 6px rgba(31, 59, 43, 0.18);
}

.klo-kvp-limits-notice__icon {
    display: block;
}

.klo-kvp-limits-notice__text {
    font-weight: 500;
    letter-spacing: 0.01em;
    color: var(--klo-kvp-green-deep);
}

/* Hvis kun limits og ingen tier-priser — slet topafstand så det ikke ser
   underligt ud at have en separat "border" når der ikke kommer noget under */
.klo-kvp-tiers--limits-only {
    margin-top: 14px;
    padding-top: 0;
    border-top: none;
}

.klo-kvp-tiers--limits-only .klo-kvp-limits-notice {
    margin-bottom: 0;
}


/* ----- Header ----- */
.klo-kvp-tiers__header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px 12px;
    margin-bottom: 12px;
}

.klo-kvp-tiers__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--klo-kvp-accent);
}

.klo-kvp-tiers__eyebrow::before {
    content: "";
    width: 16px;
    height: 1px;
    background-color: currentColor;
    display: inline-block;
}

.klo-kvp-tiers__hint {
    font-size: 12px;
    color: var(--klo-kvp-ink-muted);
    font-style: italic;
}

/* ----- Grid med tier-cards ----- */
.klo-kvp-tiers__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
}

.klo-kvp-tier {
    position: relative;
    padding: 12px 14px 14px;
    background-color: var(--klo-kvp-green-50);
    border: 1px solid transparent;
    border-radius: var(--klo-kvp-radius-sm);
    transition: background-color 0.25s var(--klo-kvp-ease),
                border-color 0.25s var(--klo-kvp-ease),
                transform 0.25s var(--klo-kvp-ease),
                box-shadow 0.25s var(--klo-kvp-ease);
}

.klo-kvp-tier__price {
    display: block;
    font-family: var(--klo-kvp-font-display);
    font-size: 20px;
    font-weight: 600;
    color: var(--klo-kvp-green-deep);
    line-height: 1.1;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.klo-kvp-tier__price .woocommerce-Price-amount {
    font-family: var(--klo-kvp-font-display);
    font-weight: 600;
    color: inherit;
}

.klo-kvp-tier__label {
    display: block;
    font-size: 12px;
    color: var(--klo-kvp-ink-soft);
    letter-spacing: 0.01em;
}

/* Default (normal-pris) tier — let nedtonet så det ligner et "udgangspunkt" */
.klo-kvp-tier.is-default {
    background-color: rgba(31, 59, 43, 0.05);
}

.klo-kvp-tier.is-default .klo-kvp-tier__price {
    color: var(--klo-kvp-ink-soft);
}

/* Aktiv tier — tydeligt fremhævet */
.klo-kvp-tier.is-active {
    background-color: var(--klo-kvp-green-deep);
    border-color: var(--klo-kvp-green-deep);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(31, 59, 43, 0.18);
}

.klo-kvp-tier.is-active .klo-kvp-tier__price,
.klo-kvp-tier.is-active .klo-kvp-tier__price .woocommerce-Price-amount {
    color: #fff;
}

.klo-kvp-tier.is-active .klo-kvp-tier__label {
    color: rgba(255, 255, 255, 0.78);
}

/* Lille amber-prik der markerer den aktive tier */
.klo-kvp-tier__active-marker {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--klo-kvp-accent);
    box-shadow: 0 0 0 3px rgba(196, 125, 52, 0.25);
    animation: kloKvpMarkerPulse 2.4s ease-in-out infinite;
}

@keyframes kloKvpMarkerPulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(196, 125, 52, 0.25); }
    50%      { box-shadow: 0 0 0 6px rgba(196, 125, 52, 0.10); }
}

@media (prefers-reduced-motion: reduce) {
    .klo-kvp-tier__active-marker {
        animation: none;
    }
}

/* Animation når aktiv tier skifter (sættes via JS) */
.klo-kvp-tier.is-just-activated {
    animation: kloKvpTierActivate 0.45s var(--klo-kvp-ease);
}

@keyframes kloKvpTierActivate {
    0%   { transform: translateY(-2px) scale(1); }
    40%  { transform: translateY(-3px) scale(1.04); }
    100% { transform: translateY(-2px) scale(1); }
}


/* ----- Summary (total + besparelse) ----- */
.klo-kvp-tiers__summary {
    margin-top: 14px;
    padding: 12px 14px;
    background-color: rgba(196, 125, 52, 0.08);
    border: 1px dashed rgba(196, 125, 52, 0.35);
    border-radius: var(--klo-kvp-radius-sm);
    display: grid;
    gap: 4px;
}

.klo-kvp-tiers__summary[hidden] {
    display: none;
}

.klo-kvp-tiers__summary-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    font-size: 14px;
}

/* Vigtigt: .klo-kvp-tiers__summary-row sætter display:flex, hvilket ellers
   overskriver browserens [hidden]{display:none}. Uden denne regel forbliver
   fx besparelses-rækken synlig med en forældet værdi, selv når JS har sat
   hidden=true (fx hvis man går fra 35 stk. ned til 25 stk.). */
.klo-kvp-tiers__summary-row[hidden] {
    display: none;
}

.klo-kvp-tiers__summary-row--total {
    font-weight: 500;
}

.klo-kvp-tiers__summary-label {
    color: var(--klo-kvp-ink-soft);
    font-size: 13px;
    letter-spacing: 0.01em;
}

.klo-kvp-tiers__summary-value {
    font-family: var(--klo-kvp-font-display);
    font-weight: 600;
    font-size: 17px;
    color: var(--klo-kvp-green-deep);
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
}

.klo-kvp-tiers__summary-value .woocommerce-Price-amount {
    font-family: var(--klo-kvp-font-display);
    font-weight: 600;
    color: inherit;
}

.klo-kvp-tiers__summary-value--savings,
.klo-kvp-tiers__summary-value--savings .woocommerce-Price-amount {
    color: var(--klo-kvp-accent);
}

/* Pulse på total ved opdatering */
.klo-kvp-tiers__summary-value.is-updated {
    animation: kloKvpValueUpdate 0.4s var(--klo-kvp-ease);
}

@keyframes kloKvpValueUpdate {
    0%   { transform: scale(1); }
    40%  { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* ----- Loading-state på summary (mens prisen genberegnes via AJAX) ----- */
.klo-kvp-tiers__summary-value-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
}

.klo-kvp-tiers__summary-spinner {
    position: absolute;
    right: calc(100% + 9px);
    top: 50%;
    width: 15px;
    height: 15px;
    margin-top: -8px;
    border: 2px solid rgba(31, 59, 43, 0.18);
    border-top-color: var(--klo-kvp-green-deep);
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s var(--klo-kvp-ease);
}

/* Værdierne dæmpes mens vi venter, så det er tydeligt at de er ved at opdatere */
.klo-kvp-tiers__summary.is-loading .klo-kvp-tiers__summary-value {
    opacity: 0.28;
    transition: opacity 0.15s var(--klo-kvp-ease);
}

.klo-kvp-tiers__summary.is-loading .klo-kvp-tiers__summary-spinner {
    opacity: 1;
    animation: kloKvpSpin 0.65s linear infinite;
}

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

/* Reduceret bevægelse: ingen roterende spinner — brug en blid puls i stedet */
@media (prefers-reduced-motion: reduce) {
    .klo-kvp-tiers__summary.is-loading .klo-kvp-tiers__summary-spinner {
        animation: none;
        border-top-color: rgba(31, 59, 43, 0.18);
    }
    .klo-kvp-tiers__summary.is-loading .klo-kvp-tiers__summary-value {
        animation: kloKvpDimPulse 1s ease-in-out infinite;
    }
    @keyframes kloKvpDimPulse {
        0%, 100% { opacity: 0.45; }
        50%      { opacity: 0.2; }
    }
}


/* ----- Cart-note (sat fra Cart::add_tier_note_to_subtotal) ----- */
.klo-kvp-cart-note {
    display: inline-block;
    margin-top: 2px;
    color: var(--klo-kvp-accent, #c47d34);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.02em;
}


/* ----- Qty-fejl-state (når kunden taster ugyldigt antal) ----- */
.klo-kvp-qty-error {
    flex-basis: 100%;
    margin-top: 8px;
    padding: 10px 14px;
    background-color: rgba(184, 68, 46, 0.08);
    border-left: 3px solid #b8442e;
    border-radius: 4px;
    color: #b8442e;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    animation: kloKvpErrorIn 0.2s ease-out;
}

.klo-kvp-qty-error[hidden] {
    display: none;
}

@keyframes kloKvpErrorIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Rød border på input når ugyldig */
input.qty.klo-kvp-qty-invalid {
    border-color: #b8442e !important;
    box-shadow: 0 0 0 3px rgba(184, 68, 46, 0.12) !important;
    background-color: rgba(184, 68, 46, 0.03) !important;
}

/* Disable add-to-cart-knap når ugyldig */
button.single_add_to_cart_button.klo-kvp-disabled,
.single_add_to_cart_button.klo-kvp-disabled {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    background-image: none !important;
    background-color: #999 !important;
    box-shadow: none !important;
    transform: none !important;
}


/* ----- Responsive ----- */
@media (max-width: 480px) {
    .klo-kvp-tiers__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .klo-kvp-tier__price {
        font-size: 17px;
    }
}