.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    flex-shrink: 0;
    flex-wrap: nowrap;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.dot-jar-container {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.dot-jar-container canvas {
    border-radius: 50%;
}

.header-info h1 { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.5px; white-space: nowrap; }
.header-info span { color: var(--text-muted); font-size: 0.9rem; }

.header-actions, .mobile-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
}

.btn-icon {
    background: rgba(255,255,255,0.05);
    border: none;
    color: var(--text-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 8px;
}
.btn-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: invert(1);
}
.btn-icon:hover { background: var(--accent-color); color: #000; box-shadow: 0 0 15px var(--accent-glow); }
.btn-icon:hover img { filter: invert(0); }
.btn-icon:focus-visible {
    outline: 2px solid var(--text-color);
    outline-offset: 2px;
    background: var(--accent-color);
}