/* ===== Upload PDF button (templates/includes/upload-pdf-button.html) ===== */
.rn-upload-pdf {
    /* 1. Custom properties */
    --upload-pdf-bg: var(--primary, #0966ff);
    --upload-pdf-bg-hover: var(--primary-hover, #0052cc);
    --upload-pdf-color: var(--primary-foreground, #ffffff);
    --upload-pdf-focus: var(--primary-glow, rgba(9, 102, 255, 0.18));
}

.rn-upload-pdf {
    /* 2. Base (mobile first): full width, 44px touch target */
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    min-height: 44px;
    margin: 0;
    padding: 0.625rem 1rem;
    border-radius: var(--radius-sm, 0.375rem);
    background: var(--upload-pdf-bg);
    color: var(--upload-pdf-color);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

/* 3. Elements: the input stays focusable for keyboards, only hidden from sight */
.rn-upload-pdf__input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.rn-upload-pdf__icon {
    font-size: 1.125rem;
}

/* 5. States */
.rn-upload-pdf:hover {
    background: var(--upload-pdf-bg-hover);
}

.rn-upload-pdf:focus-within {
    outline: 2px solid var(--upload-pdf-bg-hover);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--upload-pdf-focus);
}

.rn-upload-pdf.is-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.rn-upload-pdf.is-disabled:hover {
    background: var(--upload-pdf-bg);
}

/* 6. Responsive: inline next to other controls from small tablets up */
@media (min-width: 576px) {
    .rn-upload-pdf {
        display: inline-flex;
        width: auto;
        padding: 0.625rem 1.25rem;
    }
}