.wpuf-intro-stamps-field,
.wpuf-intro-stamps-gallery {
    --wpuf-intro-stamp-size: 100px;
    --wpuf-intro-stamp-gap: clamp(8px, 2vw, 14px);
    --wpuf-intro-stamp-radius: 18px;
    --wpuf-intro-stamp-border: rgba(15, 23, 42, 0.14);
    --wpuf-intro-stamp-border-active: rgba(15, 23, 42, 0.72);
    --wpuf-intro-stamp-bg: rgba(255, 255, 255, 0.86);
    --wpuf-intro-stamp-bg-active: rgba(255, 255, 255, 0.98);
    --wpuf-intro-stamp-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
    --wpuf-intro-stamp-shadow-active: 0 16px 42px rgba(15, 23, 42, 0.16);
    width: 100%;
}

.wpuf-intro-stamps-field *,
.wpuf-intro-stamps-field *::before,
.wpuf-intro-stamps-field *::after,
.wpuf-intro-stamps-gallery *,
.wpuf-intro-stamps-gallery *::before,
.wpuf-intro-stamps-gallery *::after {
    box-sizing: border-box;
}

.wpuf-intro-stamps-tabs {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin: 0 0 12px;
    padding: 0;
}

.wpuf-intro-stamps-tab {
    appearance: none;
    border: 1px solid rgba(15, 23, 42, 0.12);
    border-radius: 999px;
    background: rgba(248, 250, 252, 0.92);
    color: #111827;
    cursor: pointer;
    font-size: clamp(11px, 1.9vw, 13px);
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1;
    margin: 0;
    min-height: 0;
    padding: 7px 12px;
    text-decoration: none;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.wpuf-intro-stamps-tab:hover,
.wpuf-intro-stamps-tab:focus-visible {
    border-color: rgba(15, 23, 42, 0.34);
    background: #fff;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
    outline: none;
    transform: translateY(-1px);
}

.wpuf-intro-stamps-tab.is-active {
    border-color: rgba(15, 23, 42, 0.82);
    background: #111827;
    color: #fff;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.wpuf-intro-stamps-panels {
    width: 100%;
}

.wpuf-intro-stamps-panel {
    display: none;
}

.wpuf-intro-stamps-panel.is-active {
    display: block;
}

.wpuf-intro-stamps-grid {
    display: grid;
    gap: var(--wpuf-intro-stamp-gap);
    grid-template-columns: repeat(auto-fill, minmax(min(100%, clamp(68px, 22vw, var(--wpuf-intro-stamp-size))), 1fr));
    margin: 0;
    width: 100%;
}

.wpuf-intro-stamp-card,
.wpuf-intro-stamp-display {
    align-items: center;
    aspect-ratio: 1 / 1;
    background: var(--wpuf-intro-stamp-bg);
    border: 1px solid var(--wpuf-intro-stamp-border);
    border-radius: var(--wpuf-intro-stamp-radius);
    box-shadow: var(--wpuf-intro-stamp-shadow);
    display: flex;
    justify-content: center;
    justify-self: center;
    margin: 0;
    max-width: var(--wpuf-intro-stamp-size);
    overflow: hidden;
    position: relative;
    transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    width: 100%;
}

.wpuf-intro-stamp-card {
    cursor: pointer;
}

.wpuf-intro-stamp-card:hover,
.wpuf-intro-stamp-card:focus-within {
    border-color: rgba(15, 23, 42, 0.38);
    box-shadow: var(--wpuf-intro-stamp-shadow-active);
    transform: translateY(-2px);
}

.wpuf-intro-stamp-card.is-selected {
    background: var(--wpuf-intro-stamp-bg-active);
    border-color: var(--wpuf-intro-stamp-border-active);
    box-shadow: var(--wpuf-intro-stamp-shadow-active);
}

.wpuf-intro-stamp-card.is-selected::after {
    align-items: center;
    background: #111827;
    border: 2px solid #fff;
    border-radius: 999px;
    color: #fff;
    content: "✓";
    display: flex;
    font-size: 13px;
    font-weight: 800;
    height: 24px;
    justify-content: center;
    line-height: 1;
    position: absolute;
    right: 7px;
    top: 7px;
    width: 24px;
    z-index: 2;
}

.wpuf-intro-stamp-card input[type="checkbox"] {
    height: 1px;
    left: 8px;
    opacity: 0;
    position: absolute;
    top: 8px;
    width: 1px;
}

.wpuf-intro-stamp-card__image,
.wpuf-intro-stamp-display {
    height: 100%;
    width: 100%;
}

.wpuf-intro-stamp-card__img,
.wpuf-intro-stamp-display__img,
.wpuf-intro-stamp-card img,
.wpuf-intro-stamp-display img {
    display: block;
    height: 100%;
    object-fit: cover;
    width: 100%;
}

.wpuf-intro-stamps-gallery .wpuf-intro-stamps-grid {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, clamp(58px, 18vw, var(--wpuf-intro-stamp-size))), 1fr));
}

.wpuf-intro-stamps-message,
.wpuf-intro-stamps-empty,
.wpuf-intro-stamps-field .wpuf-intro-stamps-empty,
.wpuf-intro-stamps-gallery .wpuf-intro-stamps-empty {
    border: 1px dashed rgba(15, 23, 42, 0.18);
    border-radius: 14px;
    color: #64748b;
    font-size: 13px;
    margin: 8px 0 0;
    padding: 10px 12px;
}

.wpuf-intro-stamps-message {
    background: rgba(248, 250, 252, 0.94);
    display: none;
}

.wpuf-intro-stamps-message.is-visible {
    display: block;
}

.wpuf-field-data-intro_stamps .wpuf-intro-stamps-gallery {
    margin-top: 8px;
}

@media (max-width: 640px) {
    .wpuf-intro-stamps-field,
    .wpuf-intro-stamps-gallery {
        --wpuf-intro-stamp-radius: 15px;
        --wpuf-intro-stamp-gap: 9px;
    }

    .wpuf-intro-stamps-tab {
        padding: 6px 10px;
    }

    .wpuf-intro-stamps-grid {
        grid-template-columns: repeat(auto-fill, minmax(min(100%, clamp(58px, 28vw, var(--wpuf-intro-stamp-size))), 1fr));
    }
}

.wpuf-intro-stamps-field .screen-reader-text,
.wpuf-intro-stamps-gallery .screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}