.command-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 48px;
    background: var(--bg-dark);
    border-bottom: 1px solid rgba(0, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1010;
}

.command-bar__left,
.command-bar__right {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 240px;
}

.command-bar__center {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 0.95rem;
    color: var(--reply-red);
    letter-spacing: 4px;
}

.divider {
    width: 1px;
    height: 24px;
    background: rgba(0, 255, 255, 0.2);
}

.title {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 3px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.persona-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 32px;
    padding: 0 14px;
    border-radius: 16px;
    border: 1px solid;
    background: transparent;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    color: var(--text-dim);
    border-color: rgba(0, 255, 255, 0.15);
}

.persona-chip svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.persona-chip__shortcut {
    opacity: 0.5;
    font-size: 0.7rem;
    margin-left: 2px;
}

.persona-chip[data-persona="coo"]:hover {
    background: rgba(0, 255, 255, 0.08);
    color: var(--accent-cyan);
    border-color: rgba(0, 255, 255, 0.4);
}

.persona-chip[data-persona="coo"].active {
    background: rgba(0, 255, 255, 0.15);
    color: var(--accent-cyan);
    border-color: rgba(0, 255, 255, 0.6);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    animation: pulse-cyan 3s ease-in-out infinite;
}

.persona-chip[data-persona="plant"]:hover {
    background: rgba(0, 255, 136, 0.08);
    color: var(--accent-green);
    border-color: rgba(0, 255, 136, 0.4);
}

.persona-chip[data-persona="plant"].active {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent-green);
    border-color: rgba(0, 255, 136, 0.6);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
    animation: pulse-green 3s ease-in-out infinite;
}

.persona-chip[data-persona="demo"]:hover {
    background: rgba(255, 191, 0, 0.08);
    color: var(--accent-amber);
    border-color: rgba(255, 191, 0, 0.4);
}

.persona-chip[data-persona="demo"].active {
    background: rgba(255, 191, 0, 0.15);
    color: var(--accent-amber);
    border-color: rgba(255, 191, 0, 0.6);
    box-shadow: 0 0 20px rgba(255, 191, 0, 0.3);
    animation: pulse-amber 3s ease-in-out infinite;
}

.persona-chip.active::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: currentColor;
}

.status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-green);
}

.status__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    animation: pulse-dot 2s ease-in-out infinite;
}

.settings-icon {
    width: 20px;
    height: 20px;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.2s ease;
}

.settings-icon:hover {
    color: var(--accent-cyan);
    transform: rotate(45deg);
}

.sub-nav {
    position: fixed;
    top: 48px;
    left: 0;
    width: 100%;
    height: 40px;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    padding: 0 20px;
    z-index: 1009;
}

.sub-nav__panel {
    display: none;
    gap: 8px;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.sub-nav__panel.active {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.sub-nav__item {
    height: 28px;
    padding: 0 12px;
    border-radius: 4px;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.15s ease;
    border: none;
    background: transparent;
    display: flex;
    align-items: center;
    position: relative;
}

.sub-nav__item:hover {
    color: var(--persona-color);
    background: rgba(var(--persona-color-rgb), 0.08);
}

.sub-nav__item.active {
    color: var(--persona-color);
    background: rgba(var(--persona-color-rgb), 0.12);
}

.sub-nav__item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--persona-color);
}

.system-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-dim);
}