/* Header Component - Premium B2B Edition */
.app-header {
    background-color: var(--surface-card);
    height: 56px;
    min-height: 56px;
    max-height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    /* Required for absolute positioning of mode-indicator */
    position: relative;
}

/* Mode Indicator - Centered in header */
.mode-indicator {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--surface-ground);
    padding: 6px 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.mode-indicator.supervisor {
    background: var(--surface-card);
    color: var(--text-primary);
    border: 2px solid var(--gray-300);
    box-shadow: 
        0 2px 10px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        inset 0 -1px 0 rgba(0, 0, 0, 0.05);
    position: absolute;
    overflow: hidden;
}

/* Animated shimmer on border only - minimal & elegant */
.mode-indicator.supervisor::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(
        90deg,
        var(--gray-300) 0%,
        var(--gray-400) 25%,
        var(--gray-500) 50%,
        var(--gray-400) 75%,
        var(--gray-300) 100%
    );
    background-size: 250% 100%;
    animation: border-shimmer 5s ease-in-out infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

@keyframes border-shimmer {
    0%, 100% { background-position: 250% 0; }
    50% { background-position: 0% 0; }
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.header-logo {
    height: 28px;
    width: auto;
}

.header-title {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--brand-primary);
    margin: 0;
    letter-spacing: -0.02em;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    height: 100%;
}

.header-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}

.header-btn:hover {
    background-color: var(--surface-hover);
    color: var(--text-primary);
}

.header-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.header-btn .badge-count {
    position: absolute;
    top: -2px;
    right: -2px;
    background-color: var(--danger-color);
    color: white;
    font-size: 10px;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--surface-card);
}

.user-menu {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.user-btn {
    display: flex !important;
    align-items: center !important;
    gap: var(--spacing-sm) !important;
    padding: 6px 12px !important;
    height: 52px !important;
    max-height: 52px !important;
    border-radius: var(--radius-lg) !important;
    background-color: var(--surface-ground) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    cursor: pointer !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    overflow: visible !important;
}

.user-btn:hover {
    background-color: var(--surface-hover) !important;
    border-color: var(--brand-primary) !important;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15) !important;
}

/* ============================================
   PREMIUM AVATAR DESIGN - Innovative & Artistic
   ============================================ */

.user-avatar-wrapper {
    position: relative !important;
    width: 38px !important;
    height: 38px !important;
    flex-shrink: 0 !important;
}

/* Animated Activity Ring - The WOW factor */
.user-avatar-ring {
    position: absolute !important;
    inset: -3px !important;
    border-radius: 50% !important;
    background: conic-gradient(
        from 0deg,
        var(--brand-primary) 0deg,
        var(--brand-accent) 90deg,
        var(--state-productive) 180deg,
        var(--brand-secondary) 270deg,
        var(--brand-primary) 360deg
    ) !important;
    animation: ringRotate 3s linear infinite !important;
    opacity: 0.9 !important;
}

.user-avatar-ring::before {
    content: '' !important;
    position: absolute !important;
    inset: 2px !important;
    background: var(--surface-ground) !important;
    border-radius: 50% !important;
}

@keyframes ringRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Main Avatar Container */
.user-avatar {
    position: absolute !important;
    inset: 0 !important;
    width: 38px !important;
    height: 38px !important;
    border-radius: 50% !important;
    background: linear-gradient(
        145deg, 
        #3B82F6 0%, 
        #2563EB 30%, 
        #1D4ED8 70%,
        #1E40AF 100%
    ) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: 
        inset 0 2px 4px rgba(255, 255, 255, 0.25),
        inset 0 -2px 4px rgba(0, 0, 0, 0.1),
        0 2px 8px rgba(37, 99, 235, 0.3) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    z-index: 1 !important;
}

/* Subtle inner glow */
.user-avatar::before {
    content: '' !important;
    position: absolute !important;
    inset: 0 !important;
    border-radius: 50% !important;
    background: radial-gradient(
        ellipse at 30% 20%,
        rgba(255, 255, 255, 0.3) 0%,
        transparent 50%
    ) !important;
    pointer-events: none !important;
}

/* Initials Typography */
.avatar-initials {
    font-size: 13px !important;
    font-weight: 700 !important;
    color: white !important;
    letter-spacing: 0.5px !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2) !important;
    z-index: 2 !important;
    position: relative !important;
}

/* Status Indicator - Pulse animation */
.status-indicator-dot {
    position: absolute !important;
    bottom: -1px !important;
    right: -1px !important;
    width: 12px !important;
    height: 12px !important;
    background: #22C55E !important;
    border-radius: 50% !important;
    border: 2px solid var(--surface-card) !important;
    z-index: 3 !important;
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4) !important;
    animation: statusPulsePremium 2s ease-in-out infinite !important;
}

@keyframes statusPulsePremium {
    0% { 
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
    }
    70% { 
        box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
    }
    100% { 
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
    }
}

/* Hover Effects - Premium Interactions */
.user-btn:hover .user-avatar-ring {
    animation-duration: 1.5s !important;
    opacity: 1 !important;
}

.user-btn:hover .user-avatar {
    transform: scale(1.05) !important;
    box-shadow: 
        inset 0 2px 4px rgba(255, 255, 255, 0.3),
        inset 0 -2px 4px rgba(0, 0, 0, 0.15),
        0 4px 16px rgba(37, 99, 235, 0.4) !important;
}

.user-btn:hover .avatar-initials {
    transform: scale(1.02) !important;
}

/* Focus state for accessibility */
.user-btn:focus .user-avatar-ring {
    animation-duration: 1s !important;
    opacity: 1 !important;
}

/* When dropdown is open */
.user-menu.show .user-avatar-ring {
    animation-duration: 1s !important;
}

.user-menu.show .user-avatar {
    background: linear-gradient(
        145deg, 
        #2563EB 0%, 
        #1D4ED8 50%,
        #1E40AF 100%
    ) !important;
}

.user-info {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    max-width: 120px;
    overflow: hidden;
}

.user-name {
    font-size: var(--text-sm);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 10px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Status Indicators */
.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    background-color: var(--surface-ground);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-tertiary);
}

.status-dot.online {
    background-color: var(--success-color);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
}

.status-dot.offline {
    background-color: var(--danger-color);
}

.clock-display {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
}

/* Toggle Switch */
.header-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.header-toggle input {
    display: none;
}

.toggle-track {
    width: 40px;
    height: 20px;
    background-color: var(--surface-ground);
    border-radius: 10px;
    position: relative;
    transition: background-color 0.2s ease;
    border: 1px solid var(--border-color);
}

.header-toggle input:checked + .toggle-track {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.toggle-thumb {
    width: 16px;
    height: 16px;
    background-color: white;
    border-radius: 50%;
    position: absolute;
    top: 1px;
    left: 1px;
    transition: transform 0.2s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.header-toggle input:checked + .toggle-track .toggle-thumb {
    transform: translateX(20px);
}

.toggle-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 500;
}