:root {
    --bg-dark: #0d1117;
    --card-dark: #161b22;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-color: #14b8a6;
}

body {
    font-family: 'Nunito', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    margin: 0;
    padding: 20px 15px;
}

.filter-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}

.filter-btn {
    padding: 8px 20px;
    font-family: 'Nunito', sans-serif;
    font-size: 1em;
    font-weight: 700;
    border: none;
    background-color: var(--card-dark);
    color: var(--text-secondary);
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn.active-filter {
    background-color: var(--accent-color);
    color: var(--bg-dark);
}

#schedule-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.card {
    background-color: var(--card-dark);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 4px solid transparent;
    transition: border-left 0.3s ease;
}

.card.upcoming {
    border-left: 4px solid var(--accent-color);
}

.card-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.detail-row {
    display: flex;
    align-items: center;
    gap: 15px;
}

.detail-row i {
    font-size: 1.2em;
    color: var(--accent-color);
    width: 20px;
    text-align: center;
}

.card-time {
    font-size: 1.4em;
    font-weight: 800;
}

.card-destination {
    font-size: 1em;
    color: var(--text-secondary);
}

.card-name {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--text-primary);
}

footer p {
    text-align: center;
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.8em;
    margin-top: 40px;
}