body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 16px;
    display: flex;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 600px;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.app-header h1 {
    font-size: 1.3rem;
    margin: 0;
    color: var(--text-color);
}

.btn-voltar {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-voltar:hover {
    background-color: var(--hover-bg);
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

.card h2 {
    font-size: 1.1rem;
    margin-top: 0;
    color: var(--info-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card h3 {
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 6px;
}

p {
    font-size: 0.9rem;
    color: var(--muted-color);
    line-height: 1.4;
    margin-top: 0;
}

/* Responsividade para Vídeos do YouTube */

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 12px;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.changelog-item {
    border-left: 3px solid var(--accent-color);
    padding-left: 12px;
    margin-bottom: 14px;
}

.changelog-date {
    font-size: 0.75rem;
    color: var(--warning-color);
    font-weight: bold;
    margin-bottom: 2px;
}

ul {
    padding-left: 18px;
    margin: 6px 0;
    color: var(--muted-color);
    font-size: 0.9rem;
}