/* ========== PROFESSIONAL TIMEZONE SYSTEM ========== */
.timezone-selector-wrapper {
    position: fixed;
    top: 88px;
    right: 20px;
    z-index: var(--z-sticky);
    isolation: isolate;
}

.timezone-indicator {
    background: rgba(13, 18, 27, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 44px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.timezone-indicator::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.timezone-indicator:hover {
    background: rgba(13, 18, 27, 0.98);
    border-color: rgba(0, 102, 255, 0.3);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.timezone-indicator:hover::before {
    opacity: 1;
}

.timezone-indicator svg {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.timezone-indicator:hover svg {
    transform: rotate(15deg);
}

.timezone-indicator span {
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.timezone-indicator:hover span {
    color: var(--text-primary);
}

.timezone-selector {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: rgba(13, 18, 27, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    margin-top: 4px;
    min-width: 280px;
    box-shadow: var(--shadow-xl);
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
}

.timezone-selector.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.timezone-selector select {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    padding-right: 48px;
    background: rgba(11, 17, 32, 0.9) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: var(--radius-md);
    color: var(--text-primary) !important;
    font-size: var(--text-sm);
    font-family: var(--font-primary);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    transition: all var(--transition-base);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23c8c8d8' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 16px center !important;
    background-size: 12px !important;
    min-height: 44px;
}

.timezone-selector select:hover {
    border-color: rgba(0, 102, 255, 0.4) !important;
    background-color: rgba(11, 17, 32, 0.95) !important;
}

.timezone-selector select:focus {
    outline: none;
    border-color: var(--primary-blue) !important;
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
    background-color: rgba(11, 17, 32, 0.98) !important;
}

.timezone-selector select option {
    background: rgba(11, 17, 32, 0.98);
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
}

.timezone-selector select option:checked {
    background: var(--primary-blue);
    color: white;
    font-weight: 500;
}

.timezone-selector select option:hover {
    background: rgba(0, 102, 255, 0.2);
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .timezone-selector-wrapper {
        position: static;
        margin: 0 auto var(--space-lg);
        width: 100%;
        max-width: 320px;
        top: auto;
        right: auto;
    }
    
    .timezone-indicator {
        width: 100%;
        justify-content: center;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
    
    .timezone-selector {
        position: static;
        margin-top: var(--space-sm);
        width: 100%;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        transform: none;
        opacity: 1;
        display: none;
    }
    
    .timezone-selector.active {
        display: block;
        animation: slideDown var(--transition-base) forwards;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-8px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .timezone-indicator,
    .timezone-selector {
        transition: none;
    }
    
    .timezone-indicator:hover svg {
        transform: none;
    }
}

/* High contrast */
@media (prefers-contrast: high) {
    .timezone-indicator {
        border: 2px solid white;
        background: black;
    }
    
    .timezone-selector {
        border: 2px solid white;
        background: black;
    }
    
    .timezone-selector select {
        border: 2px solid white;
    }
}