.header-left { display: flex; align-items: center; gap: 0.5rem; flex: 1; min-width: 0; height: 100%; }
.branding { font-size: 1.2rem; margin: 0; font-weight: 700; color: var(--primary-color); }

#header-session-title {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 40%;
    display: block;
}

#header-right { display: flex; align-items: center; gap: 0.75rem; height: 100%; }
#live-clock { font-family: var(--font-mono); font-weight: bold; }

main { flex: 1; display: flex; overflow: hidden; position: relative; }

.sidebar-header {
    padding: 0 1rem;
    height: var(--header-height);
    display: flex; align-items: center; justify-content: space-between;
    flex-shrink: 0;
    background: transparent;
}
.sidebar-content { padding: 1rem; flex: 1; overflow-y: auto; display: flex; flex-direction: column; border-right: 1px solid var(--border-color); }

.sidebar-top-actions {
    display: flex;
    gap: 0.5rem;
    width: 100%;
    flex-shrink: 0;
    padding-bottom: 0.75rem;
}

.sidebar-top-actions .action-btn {
    flex: 1;
    padding: 0.75rem 0.5rem;
    background-color: var(--primary-color);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    white-space: nowrap;
}

.sidebar-top-actions #manage-sessions-btn {
    background-color: var(--surface-muted);
    color: var(--text-muted-dark);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

body.dark-mode .sidebar-top-actions #manage-sessions-btn {
    background-color: var(--surface-muted-dark);
    color: var(--text-muted-dark);
}

.sidebar-top-actions #manage-sessions-btn.active {
    background-color: var(--surface-muted);
    color: var(--text-muted-dark);
}

#session-list { flex: 1; overflow-y: auto; }

#sidebar-search-bar {
    padding: 0.75rem 0 0;
    flex-shrink: 0;
    position: relative;
    display: flex;
    align-items: center;
}

#sidebar-search-bar .search-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--text-tertiary);
    pointer-events: none;
    z-index: 1;
    display: flex;
    align-items: center;
}

#session-search {
    width: 100%;
    padding: 0.5rem 0.75rem 0.5rem 2.25rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-family: var(--font-family);
    background-color: var(--card-bg);
    color: var(--text-color);
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.2s;
}

#session-search:focus {
    border-color: var(--primary-color);
}
.session-item {
    height: var(--session-item-height);
    padding: 0.75rem 1rem;
    box-sizing: border-box;
    cursor: pointer; transition: background-color 0.2s;
    display: flex; justify-content: space-between; align-items: center;
    position: relative;
}
.session-item:hover { background-color: var(--hover-bg); }
body.dark-mode .session-item:hover { background-color: var(--hover-bg); }
.session-item.active {
    background-color: var(--primary-alpha-10);
    border-left: 4px solid var(--primary-color);
    font-weight: bold;
}

.session-item .session-name {
    flex: 1;
    cursor: pointer;
    padding: 0.25rem 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 300;
}

.session-item.active .session-name {
    font-weight: 500;
}

.session-indicators {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.recording-dot {
    width: 8px;
    height: 8px;
    background-color: var(--recording-red);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.7; }
}

.user-count {
    display: flex;
    align-items: center;
    gap: 2px;
    font-size: 0.75rem;
    color: var(--secondary-color);
    background-color: var(--hover-bg-strong);
    padding: 2px 6px;
    border-radius: var(--radius-pill-half);
}

body.dark-mode .user-count {
    background-color: var(--hover-bg-strong);
}

.session-actions { 
    display: none; 
    gap: 0.5rem; 
    opacity: 1; 
    transition: opacity 0.2s;
    flex-shrink: 0;
    min-width: 50px;
    justify-content: flex-end;
    margin-left: 0.5rem;
}
#sidebar.managing .session-actions { display: flex; }

/* Longpress visual feedback */
.session-item.longpress {
    transform: scale(0.97);
    transition: transform 0.1s;
}

@media (hover: hover) {
    .session-item:hover .session-actions { display: flex; }
}

.session-actions button {
    background: none; border: none; color: var(--secondary-color); cursor: pointer;
    padding: 4px; font-size: 1rem; border-radius: var(--radius-sm); transition: all 0.2s;
    display: flex; align-items: center; justify-content: center;
}
.session-actions button:hover { background-color: var(--hover-bg-strong); color: var(--primary-color); }
.session-actions .sess-delete-btn:hover { color: #ff4d4d; }