/* Course Button Customizer Base Styles */

/* The root element — rendered as <div> in builder, <a>/<div> on frontend */
.bd-course-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    box-sizing: border-box;
    color: inherit;
}

/* Ensure anchor tags inherit all styles */
a.bd-course-button {
    color: inherit;
    text-decoration: none;
}

/* Reset for <button> used inside Mark Complete forms */
button.bd-course-button,
input[type="submit"].bd-course-button {
    background: none;
    border: none;
    color: inherit;
    font: inherit;
    line-height: inherit;
    padding: 0;
    margin: 0;
    appearance: none;
    -webkit-appearance: none;
    outline: none;
    cursor: pointer;
}

/* Icon Spacing */
.bd-course-button i.bd-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.bd-course-button.icon-left i.bd-icon {
    margin-right: var(--icon-spacing, 8px);
}

.bd-course-button.icon-right i.bd-icon {
    margin-left: var(--icon-spacing, 8px);
}

/* Disabled State */
.bd-course-button:disabled,
.bd-course-button[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Visibility Sync: quiz buttons start hidden, JS reveals when native is visible */
.bd-course-button.bd-hidden {
    display: none !important;
}

/* Processing State: shown while quiz results are being recorded.
   Button appears grayed-out with a subtle pulse animation and
   transitions to full color once results are saved. */
.bd-course-button.bd-processing {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
    filter: grayscale(100%);
    animation: bd-pulse 1.8s ease-in-out infinite;
    transition: opacity 0.4s ease, filter 0.4s ease;
}

/* Smooth transition back to active state */
.bd-course-button.bd-quiz-action-btn {
    transition: opacity 0.4s ease, filter 0.4s ease;
}

@keyframes bd-pulse {
    0%, 100% { opacity: 0.45; }
    50%      { opacity: 0.25; }
}