/* VO2 discipline hub — road / mtb / track */
.vo2-discipline-hub {
    --dh-accent: #e71068;
    --dh-navy: #00247d;
    --dh-radius: 14px;
}

.vo2-discipline-hub__hero {
    position: relative;
    min-height: 280px;
    border-radius: var(--dh-radius);
    overflow: hidden;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--dh-accent) 0%, var(--dh-navy) 100%);
    color: #fff;
}

.vo2-discipline-hub__hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.35;
}

.vo2-discipline-hub__hero-inner {
    position: relative;
    z-index: 1;
    padding: 2.5rem 2rem;
}

.vo2-discipline-hub__hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 0.5rem;
}

.vo2-discipline-hub__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.vo2-discipline-hub__stat {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 999px;
    padding: 0.35rem 1rem;
    font-size: 0.85rem;
    backdrop-filter: blur(4px);
}

.vo2-discipline-hub__quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.vo2-discipline-hub__quick-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 1rem;
    border-radius: 999px;
    background: #fff;
    color: var(--dh-navy);
    font-size: 0.85rem;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: transform 0.15s ease;
}

.vo2-discipline-hub__quick-links a:hover {
    transform: translateY(-2px);
    color: var(--dh-accent);
}

.vo2-discipline-hub__section-title {
    color: var(--dh-navy);
    border-bottom: 3px solid var(--dh-accent);
    padding-bottom: 0.4rem;
    margin-bottom: 1rem;
    font-size: 1.15rem;
}

.vo2-discipline-hub__campaign {
    background: linear-gradient(90deg, #fff5f9 0%, #f0f4ff 100%);
    border-right: 4px solid var(--dh-accent);
    border-radius: var(--dh-radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}

.vo2-discipline-hub__news-card {
    border-radius: var(--dh-radius);
    overflow: hidden;
    height: 100%;
    transition: transform 0.2s ease;
}

.vo2-discipline-hub__news-card:hover {
    transform: translateY(-3px);
}

.vo2-discipline-hub__news-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.vo2-discipline-hub__timeline {
    list-style: none;
    padding: 0;
    margin: 0;
}

.vo2-discipline-hub__timeline li {
    display: flex;
    gap: 0.75rem;
    padding: 0.65rem 0;
    border-bottom: 1px dashed #e5e7eb;
}

.vo2-discipline-hub__timeline-date {
    flex-shrink: 0;
    width: 4.5rem;
    font-size: 0.75rem;
    color: var(--dh-accent);
    font-weight: 600;
}

.vo2-discipline-hub__timeline-body {
    flex: 1;
    min-width: 0;
}

.vo2-discipline-hub__timeline-body > a {
    display: block;
    font-weight: 600;
    line-height: 1.35;
}

.vo2-discipline-hub__event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.5rem;
    margin-top: 0.25rem;
    font-size: 0.72rem;
    line-height: 1.4;
    color: #6b7280;
}

.vo2-discipline-hub__event-meta-item {
    display: inline-flex;
    align-items: center;
    padding: 0.1rem 0.45rem;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.04);
    white-space: nowrap;
}

.vo2-discipline-hub__province-bar {
    height: 8px;
    border-radius: 4px;
    background: #e5e7eb;
    overflow: hidden;
    margin-top: 0.25rem;
}

.vo2-discipline-hub__province-bar span {
    display: block;
    height: 100%;
    background: var(--dh-accent);
    border-radius: 4px;
}

.vo2-discipline-hub .nav-tabs .nav-link.active {
    background: var(--dh-accent) !important;
    color: #fff !important;
    border-color: var(--dh-accent);
}

.vo2-discipline-hub__discipline-switch {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.vo2-discipline-hub__discipline-switch a {
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.8rem;
    text-decoration: none;
    border: 1px solid #dee2e6;
    color: var(--dh-navy);
}

.vo2-discipline-hub__discipline-switch a.is-active {
    background: var(--dh-accent);
    color: #fff;
    border-color: var(--dh-accent);
}

@media (max-width: 767px) {
    .vo2-discipline-hub__hero-inner {
        padding: 1.5rem 1rem;
    }
}

/* --- Educational guide (top of page) --- */
.vo2-discipline-guide__cover {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    border-radius: var(--dh-radius);
}

.vo2-discipline-guide__hero-media {
    position: relative;
}

.vo2-discipline-guide__hero-caption {
    margin-top: 1rem;
}

.vo2-discipline-guide__hero-caption .lead-sm {
    font-size: 0.95rem;
    line-height: 1.75;
    color: #374151;
}

.vo2-discipline-guide__card {
    background: #f8fafc;
    border-radius: var(--dh-radius);
    padding: 1.1rem 1.25rem;
    border: 1px solid #e5e7eb;
    height: 100%;
}

.vo2-discipline-guide__card-icon {
    font-size: 1.5rem;
    color: var(--dh-accent);
    margin-bottom: 0.5rem;
    display: block;
}

.vo2-discipline-guide__table th {
    font-size: 0.8rem;
    white-space: nowrap;
}

.vo2-discipline-guide__rule-box {
    background: #fff5f9;
    border-right: 3px solid var(--dh-accent);
    border-radius: 8px;
    padding: 1rem 1.15rem;
    height: 100%;
}

.vo2-discipline-guide__fact {
    background: #fff;
    border: 1px dashed #e5e7eb;
    border-radius: 8px;
    padding: 0.65rem 0.85rem;
    font-size: 0.85rem;
}

.vo2-discipline-hub__section-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #6b7280;
    font-size: 0.85rem;
    font-weight: 600;
}

.vo2-discipline-hub__section-divider::before,
.vo2-discipline-hub__section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, #d1d5db, transparent);
}

.vo2-discipline-guide .accordion-button {
    font-size: 0.95rem;
    font-weight: 600;
}

.vo2-discipline-guide .accordion-body {
    font-size: 0.9rem;
    line-height: 1.8;
    color: #374151;
}

.vo2-discipline-guide__custom img {
    max-width: 100%;
    height: auto;
    border-radius: var(--dh-radius);
}

.vo2-discipline-guide__custom table {
    width: 100%;
    margin-bottom: 1rem;
}

.discipline-intro-content h2,
.discipline-intro-content h3 {
    margin-top: 1.25rem;
    margin-bottom: 0.75rem;
}

.discipline-intro-content ul,
.discipline-intro-content ol {
    padding-right: 1.25rem;
}