/* ===========================================================================
   BowlingTracker – help-userguide.css
   Styles for the online user guide (/Help/UserGuide)
   =========================================================================== */

/* ?? Sticky left sidebar nav ??????????????????????????????????????????? */
.ug-sidebar {
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
    padding-right: 0.25rem;
}

.ug-sidebar::-webkit-scrollbar { width: 4px; }
.ug-sidebar::-webkit-scrollbar-thumb { background: var(--bt-orange); border-radius: 2px; }

.ug-nav .nav-link {
    color: var(--bt-text);
    font-size: 0.82rem;
    padding: 0.3rem 0.75rem;
    border-left: 2px solid transparent;
    border-radius: 0;
    transition: border-color var(--bt-transition), color var(--bt-transition);
}

.ug-nav .nav-link:hover,
.ug-nav .nav-link.active {
    color: var(--bt-orange);
    border-left-color: var(--bt-orange);
    background: rgba(255,109,46,.06);
}

.ug-nav .nav-link.ug-section-header {
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--bt-muted);
    border-left-color: transparent !important;
    background: transparent !important;
    cursor: default;
    padding-top: 0.7rem;
}

/* ?? Section anchors ??????????????????????????????????????????????????? */
.ug-section {
    scroll-margin-top: 4.5rem;
    margin-bottom: 2.5rem;
}

.ug-section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--bt-orange);
    margin-bottom: 1rem;
}

/* ?? Tip / Note callout boxes ?????????????????????????????????????????? */
.ug-tip {
    background: rgba(255,109,46,.07);
    border-left: 3px solid var(--bt-orange);
    border-radius: 0 var(--bt-radius) var(--bt-radius) 0;
    padding: 0.65rem 1rem;
    margin: 0.75rem 0;
    font-size: 0.88rem;
}

.ug-note {
    background: rgba(13,110,253,.06);
    border-left: 3px solid #0d6efd;
    border-radius: 0 var(--bt-radius) var(--bt-radius) 0;
    padding: 0.65rem 1rem;
    margin: 0.75rem 0;
    font-size: 0.88rem;
}

.ug-premium-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: linear-gradient(135deg, var(--bt-orange-deep), var(--bt-amber));
    color: #fff;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    vertical-align: middle;
    letter-spacing: 0.04em;
}

/* ?? Step list ????????????????????????????????????????????????????????? */
.ug-steps {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
    counter-reset: ug-step;
}

.ug-steps li {
    counter-increment: ug-step;
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
}

.ug-steps li::before {
    content: counter(ug-step);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    background: var(--bt-orange);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    margin-top: 0.05rem;
}

/* ?? Feature table ????????????????????????????????????????????????????? */
.ug-feature-table th { background: var(--bt-bg-dark); color: var(--bt-text-light); font-size: 0.8rem; }
.ug-feature-table td { font-size: 0.85rem; vertical-align: middle; }
.ug-check   { color: #28a745; }
.ug-cross   { color: #dc3545; }
.ug-premium { color: var(--bt-amber); }

/* ?? Screenshot placeholder (image not required) ??????????????????????? */
.ug-img-placeholder {
    border: 2px dashed var(--bt-border);
    border-radius: var(--bt-radius);
    padding: 2rem 1rem;
    text-align: center;
    color: var(--bt-muted);
    font-size: 0.8rem;
    margin: 0.75rem 0;
}

/* ?? Screenshot thumbnails ????????????????????????????????????????????? */
.ug-screenshots {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 0.85rem 0 0.25rem;
}

.ug-thumb {
    position: relative;
    flex: 0 0 auto;
    cursor: zoom-in;
    border-radius: var(--bt-radius);
    overflow: hidden;
    border: 2px solid var(--bt-border);
    box-shadow: var(--bt-shadow-sm);
    transition: border-color var(--bt-transition), box-shadow var(--bt-transition), transform var(--bt-transition);
    background: #f8f9fb;
}

.ug-thumb:hover {
    border-color: var(--bt-orange);
    box-shadow: var(--bt-shadow-glow);
    transform: translateY(-2px);
}

.ug-thumb img {
    display: block;
    height: 110px;
    width: auto;
    max-width: 220px;
    object-fit: cover;
    object-position: top left;
}

/* caption below thumbnail */
.ug-thumb-caption {
    font-size: 0.7rem;
    color: var(--bt-muted);
    text-align: center;
    padding: 0.2rem 0.4rem 0.3rem;
    background: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 220px;
}

/* zoom icon overlay */
.ug-thumb::after {
    content: "\f00e";              /* fa-magnifying-glass-plus */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    top: 0.3rem;
    right: 0.4rem;
    font-size: 0.75rem;
    color: #fff;
    text-shadow: 0 1px 3px rgba(0,0,0,.6);
    opacity: 0;
    transition: opacity var(--bt-transition);
    pointer-events: none;
}

.ug-thumb:hover::after {
    opacity: 1;
}

/* ?? Lightbox modal overrides ?????????????????????????????????????????? */
#ugLightbox .modal-dialog {
    max-width: min(92vw, 1100px);
}

#ugLightbox .modal-content {
    background: #111318;
    border: 1px solid rgba(255,255,255,.12);
}

#ugLightbox .modal-header {
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 0.55rem 1rem;
}

#ugLightbox #ugLbTitle {
    font-size: 0.9rem;
    color: var(--bt-text-light);
}

#ugLightbox .modal-body {
    padding: 0.5rem;
    text-align: center;
}

#ugLightbox #ugLbImg {
    max-width: 100%;
    max-height: 80vh;
    border-radius: var(--bt-radius);
    box-shadow: 0 4px 32px rgba(0,0,0,.6);
}

/* prev / next buttons */
.ug-lb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(0,0,0,.5);
    border: none;
    color: #fff;
    font-size: 1.4rem;
    padding: 0.4rem 0.7rem;
    border-radius: var(--bt-radius);
    transition: background var(--bt-transition);
    cursor: pointer;
}

.ug-lb-nav:hover { background: var(--bt-orange); }
.ug-lb-prev { left: 0.5rem; }
.ug-lb-next { right: 0.5rem; */

/* ?? Mobile: collapse sidebar ?????????????????????????????????????????? */
@media (max-width: 991.98px) {
    .ug-sidebar { position: static; max-height: none; }
    .ug-nav { display: none; }
    .ug-nav.show { display: flex !important; }
    .ug-thumb img { height: 80px; }
}