.btv-trail-events {
    margin: 2rem 0;
}

.btv-trail-events__section + .btv-trail-events__section,
.btv-trail-events__past-section,
.btv-trail-events__source {
    margin-top: 2.5rem;
}

.btv-trail-events__section-header h3,
.btv-trail-events__fallback-title {
    margin: 0 0 1rem;
    color: var(--text-color);
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.35;
}

.btv-trail-events__current,
.btv-trail-events__year-panel,
.btv-trail-events__source {
    display: grid;
    gap: 0.9rem;
}

.btv-trail-events__source {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1rem;
}

.btv-trail-events[data-initialized="true"] .btv-trail-events__source {
    display: none;
}

.btv-trail-events__empty {
    margin: 0;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--muted-color);
}

.btv-trail-events .btv-trail-event {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(8.5rem, 11rem);
    gap: 1.25rem;
    padding: 1.55rem 1.2rem 1.1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .04);
}

.btv-trail-events .btv-trail-event__period {
    margin: 0 0 .3rem;
    color: var(--hover-color);
    font-size: .94rem;
    font-weight: 700;
}

.btv-trail-events .btv-trail-event__title {
    margin: 0;
    color: var(--text-color);
    font-size: 1.28rem;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.btv-trail-events .btv-trail-event__details {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .55rem;
    margin: .9rem 0 0;
}

.btv-trail-events .btv-trail-event__details div { min-width: 0; }
.btv-trail-events .btv-trail-event__details dt { color: var(--muted-color); font-size: .82rem; font-weight: 600; }
.btv-trail-events .btv-trail-event__details dd { margin: .08rem 0 0; overflow-wrap: anywhere; }

.btv-trail-events .btv-trail-event__links {
    display: grid;
    align-content: start;
    gap: .25rem;
    border-left: 1px solid var(--border-color);
    padding-left: 1.1rem;
}

.btv-trail-events .btv-trail-event__links a {
    display: flex;
    align-items: center;
    min-height: 2.2rem;
    color: var(--hover-color);
    font-weight: 700;
    overflow-wrap: anywhere;
}

.btv-trail-events .btv-trail-event__links a:hover { color: var(--primary-color); }
.btv-trail-events .btv-trail-event__links a:focus-visible,
.btv-trail-events__year-toggle:focus-visible { outline: 3px solid var(--secondary-color); outline-offset: 3px; }

.btv-trail-events__year { border-bottom: 1px solid var(--border-color); }
.btv-trail-events__year:first-child { border-top: 1px solid var(--border-color); }
.btv-trail-events__year-toggle { display: flex; align-items: center; width: 100%; min-height: 44px; padding: .7rem 0; border: 0; background: transparent; color: var(--text-color); font: inherit; font-weight: 700; text-align: left; cursor: pointer; }
.btv-trail-events__year-count { margin-left: .4rem; color: var(--muted-color); font-weight: 500; }
.btv-trail-events__year-icon { width: .55rem; height: .55rem; margin-left: auto; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg) translateY(-.15rem); }
.btv-trail-events__year-toggle[aria-expanded="true"] .btv-trail-events__year-icon { transform: rotate(225deg) translateY(-.15rem); }
.btv-trail-events__year-panel { padding: 0 0 1rem; }
.btv-trail-events .btv-trail-events__year-panel[hidden] { display: none !important; }

@media (max-width: 768px) {
    .btv-trail-events__source { padding: .75rem; border-radius: 10px; }
    .btv-trail-events .btv-trail-event { grid-template-columns: 1fr; gap: 1rem; padding: 1.45rem 1rem 1rem; border-radius: 10px; box-shadow: none; }
    .btv-trail-events .btv-trail-event__details { grid-template-columns: 1fr; gap: .55rem; }
    .btv-trail-events .btv-trail-event__links { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .2rem .75rem; border-top: 1px solid var(--border-color); border-left: 0; padding: .75rem 0 0; }
    .btv-trail-events .btv-trail-event__links a { min-height: 2rem; }
}

@media (max-width: 480px) {
    .btv-trail-events .btv-trail-event__links { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    .btv-trail-events__year-icon { transition: none; }
}