:root {
    --tracks-navy: #102a43;
    --tracks-blue: #176b87;
    --tracks-teal: #1a8f8a;
    --tracks-bg: #f5f8fb;
    --tracks-border: #e2e8f0;
}

body {
    background: var(--tracks-bg);
    font-family: Calibri, "Segoe UI", Tahoma, Arial, sans-serif;
}

.tracks-page {
    padding-bottom: 2rem;
}

.tracks-hero {
    padding: 3.5rem 2rem;
    border-radius: 1.5rem;
    color: #fff;
    background:
        radial-gradient(circle at 12% 18%, rgba(255,255,255,.16), transparent 26%),
        linear-gradient(135deg, var(--tracks-navy), var(--tracks-blue) 58%, var(--tracks-teal));
    box-shadow: 0 22px 55px rgba(16,42,67,.20);
    text-align: center;
}

.tracks-hero h1 {
    margin: .75rem 0;
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    font-weight: 800;
}

.tracks-hero p {
    max-width: 760px;
    margin: 0 auto;
    color: rgba(255,255,255,.84);
    line-height: 1.7;
}

.tracks-nav {
    position: sticky;
    top: 10px;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
    margin: 1.5rem 0 2rem;
    padding: .75rem;
    border: 1px solid var(--tracks-border);
    border-radius: 1rem;
    background: rgba(255,255,255,.96);
    box-shadow: 0 9px 24px rgba(16,42,67,.08);
}

.tracks-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 40px;
    padding: 0 .75rem;
    border-radius: .7rem;
    color: var(--tracks-navy);
    background: #f1f6f9;
    font-weight: 800;
    text-decoration: none;
}

.tracks-nav a:hover {
    color: #fff;
    background: linear-gradient(135deg, var(--tracks-blue), var(--tracks-teal));
}

.track-detail {
    margin-bottom: 1.5rem;
    scroll-margin-top: 100px;
    overflow: hidden;
    border: 1px solid var(--tracks-border);
    border-radius: 1.2rem;
    background: #fff;
    box-shadow: 0 8px 24px rgba(16,42,67,.07);
}

.track-detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.35rem;
    color: #fff;
    background: linear-gradient(135deg, var(--tracks-navy), var(--tracks-blue));
}

.track-detail-number {
    width: 52px;
    height: 52px;
    flex: 0 0 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: .9rem;
    background: rgba(255,255,255,.14);
    font-weight: 800;
}

.track-detail-header h2 {
    margin: 0;
    font-size: 1.28rem;
    font-weight: 800;
}

.track-detail-body {
    padding: 1.4rem;
}

.track-detail-label {
    color: var(--tracks-navy);
    font-weight: 800;
}

.track-detail-body p,
.track-detail-body li {
    color: #526174;
    line-height: 1.72;
}

.track-detail-body li {
    margin-bottom: .4rem;
}