/* Tutorial Icon Button */
.tutorial-info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--primary-dark);
    color: var(--primary-dark);
    cursor: pointer;
    padding: 0;
    user-select: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    flex-shrink: 0;
}

.tutorial-info-icon svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.tutorial-info-icon:hover {
    background: var(--brand-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.14);
}

.tutorial-info-icon:focus-visible {
    outline: 2px solid var(--primary-dark);
    outline-offset: 2px;
}

/* Tutorial Modal */
.tutorial-modal[hidden] {
    display: none !important;
}

.tutorial-modal {
    position: fixed;
    inset: 0;
    z-index: 11000;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.tutorial-modal-dialog {
    width: 100%;
    max-width: 760px;
}

.tutorial-modal-content {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    max-height: calc(100vh - 32px);
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.tutorial-modal-header,
.tutorial-modal-footer {
    padding: 14px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.tutorial-modal-header {
    background: var(--brand-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.tutorial-modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    border-bottom: none;
    display: flex;
    justify-content: flex-end;
    background: var(--white);
}

.tutorial-modal-title {
    margin: 0;
    color: var(--primary-dark);
}

.tutorial-close-btn {
    border: none;
    background: transparent;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    color: var(--text-color);
    padding: 0;
}

.tutorial-close-btn:hover {
    opacity: 0.8;
}

.tutorial-modal-body {
    padding: 18px 20px;
    overflow-y: auto;
}

.tutorial-modal-subtitle {
    margin-bottom: 14px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.tutorial-modal-body .carousel {
    padding-bottom: 22px;
}

.tutorial-modal-body .carousel-item img {
    max-height: 60vh;
    object-fit: contain;
    background: #f5f6f8;
    border-radius: 10px;
}

.tutorial-modal-body .carousel-caption {
    left: 12px;
    right: 12px;
    bottom: 10px;
    background: rgba(0, 0, 0, 0.52);
    border-radius: 8px;
    padding: 8px 10px;
}

.tutorial-modal-body .carousel-caption p {
    margin: 0;
    font-size: 0.88rem;
}

.tutorial-modal-body .carousel-indicators {
    bottom: -4px;
    margin-bottom: 0;
    gap: 6px;
}

.tutorial-modal-body .carousel-indicators [data-bs-target] {
    width: 26px;
    height: 6px;
    border-radius: 999px;
    border: none;
    background-color: rgba(0, 0, 0, 0.22);
    opacity: 1;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.tutorial-modal-body .carousel-indicators [data-bs-target].active {
    background-color: var(--primary-dark);
    transform: scaleX(1.12);
}

.tutorial-modal-body .carousel-indicators [data-bs-target]:hover {
    background-color: var(--primary-color);
}

.tutorial-modal-body .carousel-control-prev,
.tutorial-modal-body .carousel-control-next {
    width: 12%;
    opacity: 1;
}

.tutorial-modal-body .carousel-control-prev-icon,
.tutorial-modal-body .carousel-control-next-icon {
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.5);
    background-size: 50% 50%;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.tutorial-modal-body .carousel-control-prev:hover .carousel-control-prev-icon,
.tutorial-modal-body .carousel-control-next:hover .carousel-control-next-icon {
    transform: scale(1.08);
    background-color: var(--primary-dark);
}

.tutorial-modal-body .carousel-control-prev:focus-visible .carousel-control-prev-icon,
.tutorial-modal-body .carousel-control-next:focus-visible .carousel-control-next-icon {
    outline: 2px solid var(--primary-dark);
    outline-offset: 2px;
}

.tutorial-modal-tip {
    margin-top: 12px;
    margin-bottom: 0;
    font-size: 0.86rem;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 640px) {
    .tutorial-modal-header,
    .tutorial-modal-footer,
    .tutorial-modal-body {
        padding-left: 12px;
        padding-right: 12px;
    }

    .tutorial-modal-body .carousel-item img {
        max-height: 48vh;
    }

    .tutorial-modal-body .carousel-caption {
        left: 8px;
        right: 8px;
        bottom: 8px;
    }
}