.reader-footer {
    position: relative;
    height: 50px;
    background: #F9F9F9;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    z-index: 10;
    flex-shrink: 0;
}

.footer-content {
    display: flex;
    align-items: center;
    width: 100%;
    gap: 1.5rem;
}

.navigation-controls {
    display: grid;
    grid-template-columns: 32px 1fr 32px;
    align-items: center;
    gap: 0.75rem;
    width: 260px;
    flex-shrink: 0;
}

.nav-btn {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #333;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.nav-btn:hover:not(:disabled) {
    background: #f0f0f0;
    transform: translateY(-1px);
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.chapter-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 0;
    overflow: hidden;
    color: #333;
}

.chapter-title {
    font-weight: 600;
    font-size: 0.75rem;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
    line-height: 1.2;
}

.chapter-count {
    opacity: 0.5;
    font-size: 0.75rem;
}

.progress-container {
    flex: 1;
    height: 6px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 3px;
    overflow: hidden;
    margin: 0 1rem;
}

.progress-bar {
    height: 100%;
    background: #2ECC71;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.meta-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    color: #888;
    flex-shrink: 0;
}

.battery {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}